JP5285243B2 - Self-removing combine - Google Patents

Description

  The present invention includes a driving unit provided on the right or left side of the traveling machine body, and a cutting unit frame that is supported by the front part of the traveling machine body so as to be swingable up and down around a lateral fulcrum and supports the cutting part. It is related with the self-decomposing combine equipped

  As a conventional technique, for example, as disclosed in Patent Document 1, power from an engine is transmitted through a longitudinal transmission shaft 52 in a longitudinal transmission pipe (36 in FIG. 5 of Patent Document 1) (Patent Document 1). The power transmitted to the lateral transmission shaft (43 of Patent Document 1) in 37) of FIG. 4 of Document 1 is transmitted from the lateral transmission pipe (37 of FIG. 4 of Patent Document 1) to the support pipe. A pulling sprocket shaft (FIG. 6 of Patent Document 1) that is transmitted to an internally driven pulling shaft (44 of FIG. 6 of Patent Document 1) and interlocked to the pulling transmission shaft (FIG. 6 of Patent Document 1). 46) is rotated and the right cereal pulling case (22a in FIG. 4 of Patent Document 1) and the pulling tine (22a in FIG. 4 of Patent Document 1) are driven to rotate are known. It has been.

Japanese Patent Application Laid-Open No. 2007-74952 (see description of FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, paragraph number “0033”)

  In the self-removing combine of Patent Document 1, the power from the lateral transmission pipe is connected to the upper part of the grain raising case via a support pipe disposed obliquely upward and forward. Therefore, if the grain raising case is disposed at a position overlapping the operation part (10 in FIG. 3 of Patent Document 1) in a front view, the support pipe is positioned in front of the operation part, and the support pipe is processed before cutting. It has been a hindrance to bring the device (3 in FIG. 3 of Patent Document 1) closer to the driving unit, and it has been difficult to bring the pre-cutting processing device closer to the driving unit. As a result, the pre-cutting processing device hinders the forward and downward view from the driver seated on the driving unit, and the herbaceous body located at the front of the pre-cutting processing device (15 in FIG. 3 of Patent Document 1), etc. Is difficult to see, and it is difficult to position the crop and the herbaceous body, and the workability of the cutting work tends to deteriorate.

In addition, when the pre-cutting device is disposed at a position away from the driving unit, the total length of the combine becomes long. For example, when the combine is transported or stored, a truck that transports the combine, etc. There is a problem that it is necessary to secure a large space for storing the cargo bed and the combine.
An object of the present invention is to realize a compact combine that can improve the visibility of the front lower side from the driving unit.

The feature of the present invention is that the self-removing combine is constructed as follows.
A driving unit provided on the right or left side of the traveling machine body, a deck part that supports the driver's seat of the driving part, and a front part of the traveling machine body are coupled and supported so as to be able to swing up and down around a lateral fulcrum. A cutting part frame that supports the part,
The driving unit side raising device of the mowing unit is disposed at a position overlapping the driving unit in front view,
Connected to the upper and lower central part or lower part of the driving part side pulling device, the driving part side pulling up transmission shaft extended forward from the base end part of the cutting part frame,
The power from the driving unit-side driven transmission shaft is transmitted to the input shaft at the upper part of the driving unit-side raised device via a transmission mechanism arranged along the back of the driving unit-side lifting device, The driving unit side pulling device is configured to be rotationally driven,
A gear case that is pulled up by the driving unit and connects the transmission shaft and the transmission mechanism;
A notch portion into which the gear case can enter is formed at a lower portion of the deck portion.

  According to this feature, the pulling frame extending forward from the cutting frame base end is connected to the upper and lower central part or the lower part of the driving unit, so that it extends forward from the cutting frame. The driving part is raised and the transmission shaft is arranged at a low position, and the driving part is raised in the space behind the driving part and the transmission shaft is not located. The device can be rotated. Since the transmission mechanism is arranged along the back part of the driving part side raising device, the transmission mechanism can be arranged compactly in the front and back on the upper back part of the driving part side raising device. As a result, a space can be formed in the upper part of the upper part of the driving part side raising device, and the cutting part can be formed by positioning the driving part in the space formed in the upper part of the driving part side raising device. It can arrange | position in the position close | similar to a driving | operation part of back.

  According to this feature, by arranging the driving unit side raising device at a position overlapping the driving unit in front view, the cutting unit can be moved closer to the driving unit side to form a compact combine on the left and right, and the cutting unit can be moved backward. By arranging it at a position close to the driving part, a compact combine can be configured in the front and rear direction. As a result, the total length and the entire width of the combine can be set short, and a compact combine can be realized in the front-rear and left-right directions.

According to this feature, the front part of the cutting part (for example, a divider or a crop introduced into the divider) can be easily seen from the driving part, and visibility of the front and lower from the driving part can be improved, and crop cutting work (for example, crops) Operability of positioning work with the divider).
Further, according to this feature, the vicinity of the gear case connected to the driving unit side raising device enters the notch, and the mowing unit is arranged rearward while setting the floor surface of the driving unit to a low position from the field scene. Can be set.

  According to this feature, when the combine is transported or stored, a loading platform such as a truck for transporting the combine or a space for storing the combine can be set narrow, and the combine can be transported and stored efficiently.

The present invention
The transmission mechanism is constituted by a chain transmission mechanism,
It is preferable that the chain arrangement surface of the chain transmission mechanism is arranged along the back portion of the operating unit side raising device.

  According to this feature, the thickness of the transmission mechanism can be set thin by the chain transmission mechanism, and the chain transmission mechanism is raised to the back of the device so that the direction in which the thickness is set thinly becomes the front-rear direction. Can be arranged. As a result, it is possible to reduce the thickness of the transmission mechanism that protrudes rearward from the back portion of the driving unit side raising device, and by positioning the driving unit in the space formed by forming this thin thickness, The portion can be further disposed at a position close to the rear driving portion.

  According to this feature, the visibility of the front and lower side from the driving unit can be further improved, and the workability of crop cutting work can be further improved.

In the present invention,
A chain cover that covers the transmission mechanism and the input shaft from the back side is provided,
It is preferable that a bearing that rotatably supports the rear end side of the input shaft is supported through the chain cover.
In the present invention,
The gear case is provided with an intermediate drive shaft that is raised on the driving unit side and connected to the transmission shaft,
It is preferable that the chain of the transmission mechanism is wound around the intermediate drive shaft and the input shaft.
In the present invention,
It is preferable that the front end of the driving part is located in a space formed behind the transmission mechanism of the driving part side raising device.

  According to this feature, the mowing unit can be disposed at a position close to the rear driving unit. As a result, the forward and lower visibility from the operator seated on the driver's seat can be improved, the workability of crop harvesting work can be improved, the overall length and the overall width of the combine can be set short, and the combine can be It can be configured compactly on the left and right.

In the present invention,
A packer drive shaft that is driven by the driving section and is rotatably inserted on the transmission shaft so as to be the same axis as the driving section and the transmission shaft;
It is preferable that an auxiliary conveyance device and a rotary packer that are fixed to the packer drive shaft and rotate as the packer drive shaft rotates are provided.

[Overall structure of the combine]
Based on FIGS. 1-4, the whole structure of the self-desorption type combine which concerns on this invention is demonstrated. 1 and 2 show an overall left side view and an overall right side view of the combine, respectively, and FIGS. 3 and 4 show an overall plan view and an overall front view of the combine, respectively.

  As shown in FIG. 1 to FIG. 4, the combine is connected to a front part of a traveling machine body 2 having a pair of left and right crawler traveling devices 1, and a cutting unit 3 configured in a triple-cutting specification is swingably moved up and down. The driving unit 4 is provided at the front right side of the traveling machine body 2. A threshing device 5 is mounted on the left rear part of the traveling machine body 2, and a grain recovery tank 6, a grain discharge auger 7, and the like are mounted on the right rear part of the traveling machine body 2. A waste straw processing device 8 is mounted on the rear part of the traveling machine body 2 so that waste straw generated by the threshing process by the threshing device 5 can be processed.

  The grain discharge auger 7 is configured to be foldable at the front and rear intermediate parts in the longitudinal direction. When the combine is moved or stored, the grain discharge auger 7 is folded and the grain is removed from the traveling machine body 2. The discharge auger 7 is configured not to protrude. In addition, you may comprise so that expansion and contraction is possible by sliding the grain discharge auger 7. FIG.

  The mowing unit 3 includes a pair of left and right right elevating devices 9R (corresponding to driving unit side elevating devices) and a left elevating device 9L that erect planted crops in a predetermined mowing posture, and elevating devices 9R and 9L. A clipper type mowing device 10 for cutting the planted crop that has been raised, a pair of left and right auxiliary transport devices 11R and 11L for locking and transporting the crop that is being raised, and the plant stock of the crop are raked together. A pair of left and right scraping rotary packers 12R, 12L, and a supply / conveying device 13 that sandwiches and conveys the combined harvested crops upward and rearward, and the hydraulic cylinder 14 is operated to operate the cutting unit 3. The whole is configured to swing up and down around the lateral fulcrum p at the rear upper part of the cutting unit 3 so that the cutting unit 3 can be moved up and down.

  The supply and transport device 13 is configured to include a stock holding and transporting mechanism 13a that clamps and transports the crop stock side, and a tip locking transport mechanism 13b that locks and transports the crop stock side. The supply and transport device 13 is swung up and down around the fulcrum p to change the holding position of the transported crop, and the crop delivery position to the feed chain 15 provided in the threshing device 5 is changed to the crop. It is equipped with a depth adjustment function that adjusts and adjusts in the cocoon length direction.

  In the crop supplied from the mowing unit 3, the grain threshed in the threshing apparatus 5 is stored in the grain collection tank 6, and the waste straw generated by the threshing process is processed by the waste straw processing apparatus 8, so that the traveling machine body It is comprised so that the waste waste processed after 2 may be discharged | emitted.

  A rectangular deck portion 2a having a vertically long shape in plan view is formed on the right side portion of the traveling machine body 2, and the driver's seat 4a is supported on the front and rear central portion on the upper surface side of the deck portion 2a. The seat support member 4b is placed and fixed, and the grain collection tank 6 is placed and fixed at the rear portion on the upper surface side of the deck portion 2a. At the front end of the deck portion 2a, an arch-shaped auxiliary tool 16 inclined obliquely rearward and upward and a front cover 17 covering the auxiliary tool 16 from the front are mounted. The auxiliary tool 16, the front cover 17 and the seat A boarding space in which an operator boards is formed between the support member 4b.

  In the lower part of the front part of the grain collection tank 6, a recessed part 6A recessed backward is formed, and the rear part of the seat support member 4b is disposed in the recessed part 6A. As a result, the driver's seat 4a can be positioned rearward while effectively ensuring the capacity of the grain collection tank 6 by effectively utilizing the space behind the driver's seat 4a.

  The auxiliary tool 16 and the front cover 17 are configured to be inclined obliquely rearward and upward along the pulling device 9R of the cutting part 3, and are operated below the front cover 17 located in the front part of the boarding space. A pedal 18 is provided. As a result, the cutting part 3 can be positioned rearward while ensuring a space for the operation pedal 18 to be disposed.

  A recessed portion 17A that is recessed inward is formed on the lower right side of the front cover 17, and an operation pedal 18 that is provided with an operation lever that can be operated from the front of the front cover 17 is attached to the recessed portion 17A. Is arranged. As a result, the recessed portion 17A formed in the front cover 17 can be utilized as a space for extending the operation lever forward while utilizing the space for disposing the operation pedal 18.

  As described above, the work of sitting on the driver's seat 4a while moving the cutting part 3 rearward by devising the shape and arrangement of the auxiliary tool 16, the front cover 17, the driver's seat 4a, and the grain collection tank 6 The boarding space located at the leg portion of the person can be secured relatively wide, and the cutting portion 3 can be moved rearward without impairing the operability of the combine. As a result, the cutting unit 3 can be moved rearward without changing the arrangement of the threshing device 5 and the waste straw processing device 8, and the overall length of the combine can be reduced.

[Combine transmission structure]
Based on FIG. 5, the transmission structure of a combine is demonstrated. FIG. 5 shows a schematic diagram of a combine transmission structure. As shown in FIG. 5, a hydrostatic continuously variable transmission in which an engine 21 is disposed below a driver seat 4 a in the driver 4 and a part of the power from the engine 21 is housed in a mission case 22. It is transmitted to the device (HST) 23, and the left and right crawler traveling devices 1 are driven forward and backward at a continuously variable speed, and a part of the power from the engine 21 is branched and transmitted to the threshing device 5. .

  The transmission case 22 is provided with a PTO shaft 24, and a cutting shaft 27 that is horizontally mounted along the fulcrum p of the cutting portion 3 is linked to the PTO shaft 24 via a belt transmission mechanism 25. The power is branched and transmitted by the transmission case 22 so that the cutting shaft 27 is driven to rotate.

  An output shaft 33 is interlocked and connected to the left end portion of the cutting shaft 27 via a bevel gear transmission mechanism 32, and a stock holding and conveying mechanism 13 a and a tip locking and conveying mechanism 13 b are interlocked and connected to both ends of the output shaft 33. The power supply from the cutting shaft 27 is branched to drive the supply / conveyance device 13.

  A forward transmission shaft 30 extends from the cutting shaft 27 via the bevel gear transmission mechanism 28 toward the front upper side, and a lateral cutting transmission shaft 36 extends from the extension end of the transmission shaft 30 via the bevel gear transmission mechanism 35. Linked together.

  The left pulling transmission shaft 39 is interlocked and connected to the left end portion of the mowing transmission shaft 36 via a bevel gear transmission mechanism 40, and the left pulling device 9L is forward-facing to the upper end portion of the left pulling transmission shaft 39 via a bevel gear transmission mechanism 43. The left pulling input shaft 42 is interlocked and connected, and when the cutting transmission shaft 36 rotates, the left pulling input shaft 42 is driven to rotate via the bevel gear transmission mechanism 40, the left pulling transmission shaft 39 and the bevel gear transmission mechanism 43, The left pulling device 9L is configured to rotate.

  A vertical right-hand drive shaft 52 (corresponding to a drive shaft-side drive shaft) is linked to the right end of the cutting drive shaft 36 via a bevel gear transmission mechanism 53, and the right-hand drive shaft 52 is connected to the packer. A drive shaft 54 is externally fitted. The upper part of the right pulling transmission shaft 52 is linked to the packer drive shaft 54 via a speed reduction mechanism 56 a so that the rotation of the right pulling transmission shaft 52 is decelerated by the speed reduction mechanism 56 a and transmitted to the packer drive shaft 54. It is configured.

  The right auxiliary transport device 11R and the right scraping rotary packer 12R are linked to the packer drive shaft 54, and the right pulling transmission shaft 52 is rotated by the power branched from the cutting transmission shaft 36, via the speed reduction mechanism 56a. When the packer drive shaft 54 rotates, the auxiliary transport device 11R and the rotary packer 12R are driven to rotate.

  The left scraping rotary packer 12L is meshed with the right scraping rotary packer 12R, and the left auxiliary transport device 11L is driven to rotate by the power transmitted by meshing with the left scraping rotary packer 12L. It is configured. The shape of the left rotating packer 12L is set to the same shape as that of the right rotating packer 12R, and the right and left rotating packers 12R, 12L are configured to rotate at substantially the same speed.

  An intermediate drive shaft 57 is interlocked and connected to the upper end portion of the right pulling transmission shaft 52 via a bevel gear transmission mechanism 58, and this intermediate drive shaft 57 is raised rightward via the chain transmission mechanism 70 to the front right side of the device 9R. Linked to the input shaft 59 (corresponding to the input shaft), and when the right pulling transmission shaft 52 rotates, the right pulling operation is performed via the bevel gear transmission mechanism 58, the intermediate drive shaft 57, and the chain transmission mechanism 70 (corresponding to the transmission mechanism). The input shaft 59 is rotationally driven, and the right pulling device 9R is rotationally driven.

  The crank mechanism 20 is linked and connected to the right end portion of the cutting transmission shaft 36 via the bevel gear transmission mechanism 19, and when the cutting transmission shaft 36 rotates, the crank mechanism 20 is driven and the cutting blade 10a of the cutting device 10 is fixed. It is configured to be reciprocated to the left and right with the stroke.

[Detailed structure of mowing section transmission system]
Based on FIGS. 5-10, the detailed structure of the transmission system to the cutting part 3 is demonstrated. FIG. 6 is a development view of the transmission system to the cutting unit 3, and FIGS. 7 and 8 are a left side view of the transmission system to the left pulling device 9L and a right side surface of the transmission system to the right pulling device 9R. Each figure is shown. 9 shows a vertical right side view of the vicinity of the chain transmission mechanism 70, and FIG. 10 shows a vertical front view of the pulling devices 9L and 9R.

  As shown in FIG. 5, the power from the engine 21 is transmitted to a cutting shaft 27 housed in a sideways cylindrical gear case 26 via a belt transmission mechanism 25, and the power transmitted to the cutting shaft 27 is a gear. It is branched and transmitted to a transmission shaft 30 housed in the cutting part frame 29 via a bevel gear transmission mechanism 28 housed in the case 26.

  As shown in FIGS. 6 and 7, a bevel gear case 34 is attached to the front end portion of the cutting portion frame 29 extending forward from the gear case 26, and two pairs of bevel gears are built in the bevel gear case 34. The power from the transmission shaft 30 is transmitted to the cutting transmission shaft 36 via the bevel gear transmission mechanism 35 configured by the above. A counter case 37 is attached to the left end portion of the bevel gear case 34, and a cutting transmission shaft 36 extends inside the counter case 37.

  A cylindrical counter bracket 38 is attached to the left side portion of the counter case 37, and a left-handed drive shaft 39 housed in the counter bracket 38 is trimmed via a bevel gear transmission mechanism 40 housed in the counter case 37. The transmission shaft 36 is linked and connected. A left bevel gear case 41 is attached to an upper end portion of the counter bracket 38, and a forward-facing left-side raised input shaft 42 is interlocked with the left-side induced transmission shaft 39 via a bevel gear transmission mechanism 43 provided in the left-side bevel gear case 41. It is connected.

  As shown in FIGS. 7 and 10, the left bevel gear case 41 is connected to the raising case 44 of the left raising device 9 </ b> L, and forwardly from the left bevel gear case 41 so as to be positioned inside the raising case 44. The input shaft 42 extends from the left side upward. A drive sprocket 45 is interlocked and connected to the tip of the left-side input shaft 42. The drive sprocket 45, a tension sprocket 46 that can be displaced vertically and spring-biased on its side, The chain 48 is stretched over a chain guide roller 47 provided at the lower portion of the pulling case 44, and the chain 48 is wound around the side.

  A raising claw 49 is pivotally connected to the raising chain 48 at an equal pitch so as to swing up and down, and the raising claw 49 that has been raised and moved downward along the chain 48 has a chain guide roller. It is constructed so that it is guided by the outer periphery of 47 and rises while moving up and moves around to the path, and moves upward in a state where it is raised and guided by a guide rail 50 fixedly arranged on the side of the path.

  As shown in FIGS. 6 and 8, a gear case 51 is mounted on the right side of the bevel gear case 34, and the right pulling transmission shaft 52 is trimmed via a bevel gear transmission mechanism 53 built in the gear case 51. The transmission shaft 36 is linked and connected. A packer drive shaft 54 whose upper end portion is rotatably supported by a right bevel gear case 56 (corresponding to a gear case) is externally fitted to the right pulling transmission shaft 52, and a lower end portion of the packer drive shaft 54 is A packer driving flange 55 that is rotatably fitted to the right pulling transmission shaft 52 is fixed.

  A right bevel gear case 56 is attached to an upper end portion of the right pulling transmission shaft 52, and a bevel gear transmission mechanism 58 in which a forward intermediate drive shaft 57 extending from the right bevel gear case 56 is housed in the right bevel gear case 56. And interlockingly connected to the right pulling transmission shaft 52 via the. The right bevel gear case 56 includes a reduction mechanism 56 a configured by engaging four gears. The rotation of the right pulling transmission shaft 52 is decelerated by the reduction mechanism 56 a and supported by the right bevel gear case 56. The packer drive shaft 54 is configured to rotate.

  The pulley 91 of the right auxiliary transport device 11R is fixed to the packer drive shaft 54, the right rotary packer 12R is fixed to the packer drive flange 55, and the right pulling transmission shaft 52 is driven by the power branched from the cutting transmission shaft 36. When the packer drive shaft 54 rotates and rotates through the speed reduction mechanism 56a, the auxiliary transport device 11R and the rotary packer 12R are rotationally driven.

  As shown in FIGS. 8 and 9, the right bevel gear case 56 is connected to the pulling case 60 of the right pulling device 9 </ b> R via a bracket 61. The bracket 61 has a U-shaped cross section that is open rearward in plan view. When the right bevel gear case 56 is fixed to the bracket 61, the front plate 61a of the bracket 61 and the front end portion of the right bevel gear case 56 are fixed. A predetermined gap is formed therebetween, and an intermediate drive shaft 57 extending forward from the right bevel gear case 56 is disposed in the gap.

  A lower sprocket 71 is fixed to the intermediate drive shaft 57, and a transmission chain 73 is wound around the lower sprocket 71 and an upper sprocket 72, which will be described later, and the chain arrangement surface of the transmission chain 73 is raised. A transmission chain 73 is disposed along the rear panel 60R of the case 60. On the upper part of the pulling case 60, a right-handed input shaft 59 is supported by a bearing member 76 via a bearing 75 so as to be rotatable around a front-rear axial center. The drive sprocket 62 is interlocked to the part.

  An upper sprocket 72 is raised at the rear of the right-side input shaft 59 by a key structure and interlocked with the input shaft 59. A bearing 77 is externally fitted at the rear end of the right-side input shaft 59. Then, it is rotatably supported by a chain cover 74 described later. The bearing 75, the upper sprocket 72, and the bearing 77 are arranged without a gap in the front-rear direction, and are configured to shorten the length of the raising case 60 that protrudes rearward from the rear panel 60R.

  As described above, the transmission chain 73 is wound around and stretched across the lower sprocket 71 linked to the intermediate drive shaft 57 and the upper sprocket 72 raised to the right and linked to the input shaft 59. Thus, the chain transmission mechanism 70 is configured, and the power from the intermediate drive shaft 57 can be raised to the right side via the chain transmission mechanism 70 and transmitted to the input shaft 59, and the power from the intermediate drive shaft 57 can be raised to raise the case 60. It can be raised to the right and back along the rear panel 60R and transmitted to the input shaft 59 in a compact manner.

  As shown in FIGS. 9 and 10, the chain transmission mechanism 70 is covered with a chain cover 74 from the rear. The chain cover 74 has a strip-like rear plate 74a that is long in the vertical direction, left and right side plates 74b that are bent forward from the left and right side portions of the rear plate 74a, and a shape in a side view on the upper portion of the rear plate 74a. The upper connection part 74c bent in the L-shape and the lower connection part 74d formed in the lower part of the left and right side plates 74b are provided. The upper connecting portion 74c is formed with a front-rear mounting hole, and the upper portion of the chain cover 74 is fastened and fixed to the rear panel 60R via the mounting hole. A left and right mounting hole is formed in the lower connecting portion 74d, and the lower portion of the chain cover 74 is fastened and fixed to the bracket 61 through the mounting hole.

  A circular opening 74e is formed in the upper part of the rear plate 74a of the chain cover 74, and a bearing 77 is fitted and fixed to the opening 74e. In this way, by adopting a configuration in which the bearing 77 is supported by the chain cover 74, the width of the chain cover 74 in the front-rear direction is set narrower than when the bearing 77 is covered with the chain cover 74 from behind, for example. Thus, the size of the chain cover 74 protruding rearward from the rear panel 60R of the raising case 60 can be reduced.

  As shown in FIG. 10, the right elevating device 9R includes a drive sprocket 62 that is elevated to the right and connected to the input shaft 59, and a tension sprocket 63 that can be displaced vertically and is spring-biased upward. The chain 66 is stretched around the first and second chain guide rollers 64 and 65 arranged in parallel at the lower part of the raising case 60, and the chain 66 is wound around and stretched in a transverse manner.

  The raising chain 66 is pivotally connected to the raising chain 66 at an equal pitch so that it can swing up and down, and in the return path where the raising chain 66 moves downward, the raising nail 67 is raised along the chain 66. It moves downward in the lying posture, and is guided by the outer periphery of the first chain guide roller 64, wraps around the lateral movement path while standing, and continues in the state where the standing posture is maintained by the first guide rail 68 fixedly arranged. It is configured to move. The pulling claw 67 that has moved laterally in the standing posture along the lateral movement path is guided to the outer periphery of the second chain guide roller 65 and is guided to the guiding path while maintaining the standing posture, and is raised and fixed to the side of the path. It is configured to move upward in a state where it is erected and guided by the deployed second guide rail 69, and the pulling claw 67 that is detached from the upper end of the second guide rail 69 falls and wraps around the return path. .

  The raising paths of the raising devices 9R and 9L are arranged so as to face each other and are adjacent to each other, and the raising chains 48 and 66 are rotationally driven at the same speed, so that the raising devices 9R and 9L are raised. The claws 49 and 67 are raised and maintained in contact with each other in the path to move upward, thereby causing the crops to escape without escape.

  The winding circumference of the raising chain 66 in the right raising device 9R is longer than the winding circumference of the raising chain 48 in the left raising device 9L by an integral multiple of the nail pitch of the raising claws 67 and 49. It has become. In this example, the shaft center position of the drive sprocket 62 positioned at the upper end of the winding path of the pulling chain 66 in the right pulling apparatus 9R is set to the drive positioned at the upper end of the winding path of the pulling chain 48 in the left pulling apparatus 9L. By setting the sprocket 62 higher than the axial position of the sprocket 62, it is configured so that a long circumferential pulling chain 66 and a short circumferential pulling chain 48 can be pulled up and driven synchronously with the claws 67 and 49 being in contact with each other. ing. The pulling case 60 of the right pulling device 9R is connected to the pulling case 44 of the left pulling device 9L by an arch-shaped reinforcing frame 78.

  The first chain guide roller 64 has a smaller diameter than the second chain guide roller 65, and the chain winding curvature of the first chain guide roller 64 is smaller than the chain winding curvature of the second chain guide roller 65. As a result, the curvature of the tip rotation trajectory of the pulling claw 67 that is guided to the first chain guide roller 64 to turn upright is reduced, and crop scraping and leakage can be reduced.

  By configuring the second chain guide roller 65 in the right pulling device 9R to have a large diameter, when a crop located near the right end of the cutting width W is pulled up and pulled through the lower end of the device 9R, it is guided to the path, It is avoided that the crops are tightly folded by the corner on the raising path side at the lower end of the raising device 9R.

  The lateral movement width a of the lower end portion of the right pulling device 9R is set to be larger than the lateral movement width b of the lower end portion of the left pulling device 9L, whereby the cutting width W of the cutting unit 3, that is, The distance between the tip of the right divider 80R and the tip of the left divider 80L provided at the front ends of the pulling devices 9R and 9L is set as close as possible to the tread H of the left and right crawler travel devices 1 (FIG. 4).

[Detailed structure of the divider]
The detailed structure of the divider 80 will be described with reference to FIGS. 3, 4, and 11 to 13. FIG. 11 shows a partially omitted plan view of the cutting unit 3, and FIG. 12 shows a longitudinal front view of the cutting unit 3. FIG. 13 is a schematic plan view for explaining the relationship between the crop and the divider 80. As shown in FIGS. 3 and 4, the combine divider 80 includes a right divider 80R located on the driving unit 4 side, a left divider 80L located on the opposite side of the driving unit 4 side, and a right divider 80R and the left side. A central divider 80C located between the dividers 80L is provided.

  As shown in FIGS. 11 and 12, a right cutting frame 81 is fastened and fixed to a right end portion of the bevel gear case 34, and the right cutting frame 81 extends from the right end portion of the bevel gear case 34 to the right side. It is formed in a shape extending forward from the end extending to the right side. A right mounting frame 84 for attaching the right divider 80R is fixed to the front end of the right cutting frame 81 so as to be adjustable in the front-rear position, and the right divider 80R is attached to a plurality of locations on the front end of the right mounting frame 84. It is tightened and fixed so that the height can be adjusted (see FIG. 8). The right divider 80R is configured to incline obliquely rearward from the attachment portion to the right attachment frame 84 in plan view so that the crop located on the right side during the three-row cutting operation can be guided to the center side. It is configured.

  A central cutting frame 82 is fastened and fixed to the lower part of the central portion of the bevel gear case 34, and the central cutting frame 82 extends forward from the bevel gear case 34. A central attachment frame 85 for attaching the central divider 80C is fixed to the front end portion of the central cutting frame 82 so as to be adjustable in the front-rear position, and the central divider 80C is attached to a plurality of locations on the front end portion of the central attachment frame 85. It is fastened and fixed so that the height can be adjusted.

  A left cutting frame 83 is fastened and fixed to a left end portion of a counter case 37 attached to the left side of the bevel gear case 34, and the left cutting frame 83 extends forward from the counter case 37. A left side mounting frame 86 for attaching the left side divider 80L is fixed to the front end of the left side cutting frame 83 so as to be adjustable in the front-rear position. The left side divider 80L is attached to a plurality of locations at the front end of the left side mounting frame 86. It is tightened and fixed so that the height can be adjusted (see FIG. 7).

  As shown in FIG. 11, the left side portion of the right divider 80R is equipped with a front guide guide 109R extending obliquely rearward leftward and upward from the front end portion of the right divider 80R. By the cooperation of the guide guide 109R and the right divider 80R, the crop introduced from the front can be guided to the rear center. The left divider 80L is provided with a front guide guide 109L extending obliquely rearward and rightward from the front end of the left divider 80L. The left front guide guide 109L and the left divider 80L are provided on the right side of the left divider 80L. In cooperation with, the crop introduced from the front can be guided to the rear center. The rear part of the central divider 80C is equipped with a front guide guide 109 extending obliquely rearward and upward from the front end of the central mounting frame 85, and cooperation between the central divider 80C and the central front guide guide 109C. Thus, the crop introduced from the front can be guided backward.

  The right cutting width W1 between the front end portion of the right divider 80R and the front end portion of the central divider 80C is set to about 550 millimeters (hereinafter referred to as mm), and the left side between the front end portion of the left divider 80L and the front end portion of the central divider 80C. The cutting width W2 is set to about 350 mm, and the cutting width W between the tip of the left divider 80L and the tip of the right divider 80R is set to about 900 mm.

  As shown in FIG. 4, the left divider 80 </ b> L is disposed so that the front end portion of the left divider 80 </ b> L partially overlaps with the outer end of the left crawler belt 1 a of the crawler traveling device 1 in front view. The right divider 80R is disposed so that the tip of the right divider 80R overlaps the outer end of the crawler belt 1a on the right side of the crawler traveling device 1. The central divider 80C is disposed so as to be positioned between the left and right crawler belts 1a of the crawler traveling device 1, and the front end portion of the central divider 80C is located at the intermediate position between the right raising device 9R and the left raising device 9L. Are arranged so as to be positioned.

  The cutting width W of the cutting part 3 is set to be approximately the same dimension as the stepping allowance H of the left and right crawler travel devices 1 (a dimension slightly smaller than the stepping allowance H), and the tip end of the right divider 80R and the tip of the left divider 80L. The cutting width W (the positions of the tip portions of the right divider 80R and the left divider 80L) is set so that the portion is located at a position close to both outer ends of the step allowance H of the left and right crawler travel devices 1.

  As shown in FIG. 13 (a), at the time of the two-row cutting operation, the two pulling devices 9R and 9L are raised one by one, and as shown in FIG. The pulling device 9R, 9L performs the pulling of 3 items.

[How to set the cutting width]
A method for setting the cutting width W (the right cutting width W1 and the left cutting width W2) will be described with reference to FIG. FIG. 14 is a schematic plan view for explaining a method for setting the cutting width W (the right cutting width W1 and the left cutting width W2). In the following description, the distance between the adjacent strains of the crop to be harvested with the combine will be referred to as the inter-strip pitch P, and the case where the inter-strip pitch P is about 300 mm will be described as an example. Further, the outer diameter of one crop is referred to as a stock diameter D, and the case where the stock diameter D is about 50 mm will be described as an example. FIGS. 14A and 14B are shown for explaining a method for setting the cutting width W, which is different from the cutting width W described in FIG. 14C and the combine of this embodiment. .

  In the dimension setting of the cutting width Wa (the right cutting width W1a and the left cutting width W2a) as shown in FIG. 14A, the range in the width direction in which the divider 80 is positioned is narrowed, and the divider 80 is accurately positioned. This is necessary and the workability of the mowing work may be deteriorated.

  Further, as shown in FIG. 14 (a), for example, the left trimming width W2a is set to a dimension smaller than the inter-strip pitch P (for example, W2a = 250 mm), and the trimming width Wa is slightly larger than twice the inter-strip pitch P. When set to (for example, Wa = 700 mm), when the center divider 80Ca is positioned at a position close to the left side of the stock, the tip of the left divider 80La may interfere with an uncut crop.

  Specifically, an operator seated in the driver's seat 4a is positioned so as to introduce two uncut crops between the right divider 80Ra and the central divider 80Ca while looking at the right divider 80Ra and the central divider 80Ca. Then, in addition to the operation of the combine, it is necessary to confirm the positional relationship of the divider 80, the positional relationship between the left divider 80La and the uncut crop cannot be sufficiently confirmed, and the central divider 80Ca is positioned closer to the left side of the strain. When positioned, the tip of the left divider 80La may interfere with uncut crops.

  As shown in FIG. 14B, for example, the cutting width Wb is set to a dimension slightly larger than twice the inter-strip pitch P (for example, Wb = 700 mm), and the left trimming width W2b is the same as the inter-strip pitch P (for example, If it is set to W2b = 300 mm), even when the center divider 80Cb is positioned close to the left side of the strain, interference with the uncut crop at the tip of the left divider 80Lb can be prevented. However, even in this case, it is necessary to accurately position the divider 80 while the range in the width direction in which the divider 80 is positioned remains narrow, and the workability of the cutting operation may be deteriorated.

  As shown in FIG. 14 (c), when the cutting width W is set to about 900 mm, which is three times the interval pitch P, and the left-side cutting width W2 is set to about 350 mm obtained by adding the stock diameter D to the interval pitch P ( (If the right cutting width W1 is set to about 550 mm), even when the central divider 80C is positioned close to the left side of the strain, interference with the uncut crop at the tip of the left divider 80L can be prevented, and the right side Wide ranges X, Y, and Z for positioning the divider 80R, the left divider 80L, and the central divider 80C can be secured. As a result, the divider 80 can be easily positioned, and the workability of the cutting operation can be improved.

  The left trimming width W2 may be set to a different dimension (for example, 330 mm, 400 mm) larger than about 300 mm, and the right trimming width W1 is a large dimension or a small dimension (for example, 500 mm, 600 mm) within a range of about 450 mm to about 650 mm. Further, the cutting width W may be set to a large or small dimension (for example, 800 mm, 930 mm) within a range of about 750 mm to about 950 mm.

  In the cutting width W (the right cutting width W1 and the left cutting width W2) shown in FIG. 14C, not only can the wide positioning range of the divider 80 be secured, but also, for example, there is an error in the inter-strip pitch P and the stock diameter D. Even so, the optimum dimension is set so that the divider 80 can be easily positioned.

[Detailed structure near the transport guide]
The detailed structure of the conveyance guide unit 100 will be described with reference to FIGS. 11, 12, 15, 16, and 17. FIG. 15 is a cross-sectional plan view of the vicinity of the conveyance guide portion 100 as viewed from obliquely upward, and FIGS. 16 and 17 are plan views of the conveyance guide portion 100 as viewed from diagonally forward and the right side surface of the conveyance guide portion 100 Each figure is shown.

  As shown in FIG. 11 and FIG. 15, the cutting device 10 is laid across the right cutting frame 81 and the left cutting frame 83, and the left auxiliary transport device 11 </ b> L is positioned above the cutting device 10. In addition, an auxiliary conveyance device 11R on the right side is disposed.

  A frame 88 extends from the front end portion of the left cutting frame 83 to the upper right and extends leftward. The lower portion of the left pulling device 9L is fixed to the left extending frame 88 (see FIG. 7). A frame 87 is extended from the front end portion of the right cutting frame 81 to the upper left side, and a lower portion of the right extension device 9R is fixed to the right extension frame 87 (see FIG. 8).

  As shown in FIG. 15, the drive axis P1 of the left auxiliary transport device 11L is changed in height to a horizontal straight line L1 that is the same as the drive axis P2 of the right auxiliary transport device 11R in plan view. The distance from the front-to-back straight line L2 passing through the center of the central cutting frame 82 to the drive axis P2 of the right auxiliary transport device 11R is equal to the left-side auxiliary from the front-to-back straight line L2 of the central cutting frame 82. The positions of the drive shaft centers P1, P2 of the left and right auxiliary transport devices 11L, 11R are set to be longer than the distance to the drive shaft center P1 of the transport device 11L.

  The rotation axis P3 of the left and right auxiliary conveyance devices 11L and 11R is positioned so that the rotation axis P4 of the right auxiliary conveyance device 11R is located behind the rotation axis P3 of the left auxiliary conveyance device 11L. , P4 are set, and the distance from the longitudinal straight line L4 passing through the drive axis P2 of the right auxiliary conveyance device 11R to the rotation axis P4 is the drive axis P1 of the left auxiliary conveyance device 11L. Is set to be approximately twice the distance from the front-to-back straight line L3 to the rotation axis P3.

  As shown in FIGS. 11 and 15, a pulley 90 is rotatably supported on a pivot axis P <b> 4 of the right auxiliary transport device 11 </ b> R via a bracket 89 that is raised to the right and fixed to the frame 87. The auxiliary conveyance belt 92 having the auxiliary conveyance pawls 92b mounted on the loop-shaped auxiliary conveyance belt main body 92a at an equal pitch is wound around the pulley 90 and the pulley 91 linked to the packer drive shaft 54. ing.

  A pulley 93 and a rotary packer 12L are rotatably supported by a bracket 94 extending from the counter bracket 38 (see FIG. 12) on the drive shaft center P1 of the left auxiliary transport device 11R. When the rotary packer 12R interlocked with the rotary pack rotates, the rotary packer 12L rotates and the pulley 93 rotates. A pulley 96 is rotatably supported on a rotation axis P3 of the left auxiliary conveyance device 11L via a bracket 95 that is raised to the left and fixed to the frame 88. The pulley 96 and the pulley 93 are spanned. The auxiliary conveyance belt 97 having the auxiliary conveyance claws 97b mounted at equal pitches is wound around the loop-shaped auxiliary conveyance belt main body 97a.

  As shown in FIG. 15, the distance La between the drive axis P2 and the rotation axis P4 of the right auxiliary conveyance device 11R is such that the drive axis P1 and the rotation axis P3 of the left auxiliary conveyance device 11L are Is set to be longer than the distance Lb, and an angle α formed by the front-rear straight line L4 and the straight part of the auxiliary transport belt 92 facing the crop introduced from the front is It is set to be larger than the angle β formed by the straight line L3 and the straight portion of the auxiliary conveyance belt 97 facing the crop introduced from the front.

  A belt-plate-shaped right guide guide 98 is fixed from the front end portion of the right-side cutting frame 81 toward the diagonally rear left side. A band-plate-like left guide guide 99 is fixed from the front end portion of the left cutting frame 83 obliquely rearward and rightward, and the rear end portion of the left guide guide 99 is fixed to the lower portion of the counter bracket 38. (See FIG. 12).

  As shown in FIG. 12, the auxiliary transport device 11R on the right side has a position at a height h2 from the rotary packers 12L and 12R disposed at a height h1 from the farm scene T (a position at a height h from the farm scene T). ), And the left auxiliary transport device 11L is disposed at a position of height h3 (a height smaller than the height h2) from the rotary packers 12L and 12R disposed at a position of height h1 from the farm scene T. The auxiliary conveyance device 11R on the right side is arranged at a position higher than the auxiliary conveyance device 11L on the left side. Thereby, when a crop located near the right end of the cutting width W is cut and transferred to the center side of the cutting width W by the auxiliary transfer device 11R during the three-row cutting operation, the crop is prevented from being bent excessively. It is configured.

  As shown in FIGS. 15, 16, and 17, a lower conveyance guide 102, a right conveyance guide 105, a left conveyance guide 106, a right upper conveyance guide 107, and a left upper conveyance guide 108 are disposed at the distal end portion of the central cutting frame 82. And the conveyance guide part 100 is comprised.

  As shown in FIGS. 16 and 17, a U-shaped bracket 101 having a vertical cross-sectional shape downward in a side view is fixed to the upper portion of the central cutting frame 82, and the lower conveyance guide 102 is attached to the upper portion of the bracket 101. A right conveyance guide 105, a left conveyance guide 106, a right upper conveyance guide 107, and a left upper conveyance guide 108 are attached.

  The lower conveyance guide 102 includes a lower bracket 103 and right and left lower guide bodies 104R and 104L. The lower bracket 103 is formed into a shape that is bent obliquely rearward and upward from an attachment portion to the bracket 101 in a side view, and right and left lower guide bodies 104R, The front end portion of 104L is fixed.

  As shown in FIG. 16, the shape of the right lower guide body 104 </ b> R in plan view extends obliquely rearward from the portion fixed to the lower bracket 103, and obliquely extends from the extended end via the curved portion 104 </ b> Ra. It is formed in a square shape extending rearward to the left. The shape of the left lower guide body 104L in plan view extends diagonally left rearward from the portion fixed to the lower bracket 103, and extends diagonally right rearward from the extended end via the curved portion 104La. It is shaped like a reverse letter. The shapes of the right lower guide body 104R and the left lower guide body 104L are set to substantially the same shape, and the rear ends of the right and left lower guide bodies 104R and 104L are positioned slightly to the right with respect to the straight line L2. Are arranged in a shifted manner.

  As shown in FIG. 17, the right and left lower guide bodies 104R and 104L are set to the same height, and are inclined obliquely rearward and upward of the right and left lower guide bodies 104R and 104L in a side view. Is set to be substantially parallel to the mounting angle of the auxiliary transport device 11 and the rotary packer 12. The wire diameters of the right and left lower guide bodies 104R and 104L are set larger than the wire diameters of a right conveyance guide 105, a left conveyance guide 106, a right upper conveyance guide 107, and a left upper conveyance guide 108, which will be described later. It is configured to ensure the strength by guiding the crop at a position close to.

  As shown in FIGS. 16 and 17, the right conveyance guide 105 is curved from the front guide portion 105a extending obliquely rearward rightward from the portion fixed to the bracket 101, and from the rear end of the front guide portion 105a. And a rear guide portion 105b extending obliquely left rearward via the portion 105c, and is formed into a curved shape in a plan view. On the other hand, the left conveyance guide 106 is obliquely rightward from the rear portion of the front guide portion 106a via the curved portion 106c, and the front guide portion 106a extending diagonally left rearward from the portion fixed to the bracket 101. A rear guide portion 106b extending rearward is formed, and is formed into a shape curved in a reverse letter shape in plan view.

  As shown in FIGS. 15 and 16, the rear guide portion 105 b of the right conveyance guide 105 is disposed so as to face the auxiliary conveyance belt 92 of the right auxiliary conveyance device 11 </ b> R, and between the auxiliary conveyance belt 92. Is set so as to gradually decrease toward the tip of the rear guide portion 105b. The rear guide portion 106b of the left transport guide 106 is disposed so as to face the auxiliary transport belt 97 of the left auxiliary transport device 11L, and the distance from the auxiliary transport belt 97 is at the tip of the rear guide portion 106b. It is set to become gradually narrower as it goes.

  As shown in FIG. 16, the length of the front guide portion 105 a of the right conveyance guide 105 is longer than the length of the front guide portion 106 a of the left conveyance guide 106, and the length of the rear guide portion 105 b of the right conveyance guide 105. So that the position of the curved portion 105c of the right conveyance guide 105 is located behind the position of the curved portion 106c of the left conveyance guide 106 so that the length of the left conveyance guide 106 is shorter than the length of the rear guide portion 106b of the left conveyance guide 106. The shape of the left conveyance guides 105 and 106 in plan view is set.

  As shown in FIG. 17, the angle at which the left conveyance guide 106 is inclined rearward and upward in a side view is set to be substantially parallel to the attachment angles of the auxiliary conveyance device 11 and the rotary packer 12. The right conveyance guide 105 extends rearward from the portion fixed to the bracket 101 so that the right conveyance guide 105 is positioned higher than the left conveyance guide 106. The angle is set to be larger than the angle, and the distance between the right conveyance guide 105 and the left conveyance guide 106 in a side view is set so as to gradually widen toward the rear.

  As shown in FIG. 16, the upper right conveyance guide 107 includes a front guide portion 107a extending obliquely rearward rightward from a portion fixed to the bracket 101, and a curved portion 107c from the rear end of the front guide portion 107a. And a rear guide portion 107b that extends obliquely rearward leftward, and is formed in a bent shape in a plan view. On the other hand, the upper left conveyance guide 108 is obliquely rightward from the portion fixed to the bracket 101 obliquely rearward leftward and from the rear end of the front guide portion 108a via the curved portion 108c. And a rear guide portion 108b extending rearward, and is formed into a shape that is bent in a reverse letter shape in plan view.

  As shown in FIGS. 15 and 16, the rear guide portion 107b of the right upper conveyance guide 107 is disposed so as to face the auxiliary conveyance belt 92 of the right auxiliary conveyance device 11R, and between the auxiliary conveyance belt 92 and the auxiliary conveyance belt 92. The distance is set so as to gradually decrease toward the front end of the rear guide portion 107b, and is disposed closer to the auxiliary transport belt 92 than the rear guide portion 105b of the right transport guide 105 in plan view. The rear guide section 108b of the left upper transport guide 108 is disposed so as to face the auxiliary transport belt 97 of the left auxiliary transport apparatus 11L, and the distance between the rear guide section 108b and the auxiliary transport belt 97 in plan view is the rear guide section 108b. It is set so as to gradually become narrower toward the front end of the left side, and is disposed at a position slightly further from the auxiliary transport belt 97 than the rear guide part 106b of the left side transport guide 106 in a plan view, and the front end part is disposed on the left side transport guide 106. It is disposed so as to be located at substantially the same position as the rear guide part 106b.

  As shown in FIG. 16, the front end portion of the rear guide portion 107b of the right upper conveyance guide 107 is formed in a shape bent to the left side in a plan view, and the front end portion of the bent rear guide portion 107b is viewed in a plan view. The right side guide 105 is configured to be substantially parallel to the rear guide 105b.

  The position of the curved portion 107c of the right upper conveyance guide 107 is set to the left upper conveyance so that the length of the front guide portion 107a of the right upper conveyance guide 107 is longer than the length of the front guide portion 108a of the left upper conveyance guide 108. The shapes of the right and left upper conveyance guides 107 and 108 in plan view are set so as to be located behind the position of the curved portion 108c of the guide 108. Further, the length of the rear guide portion 107b of the right upper transport guide 107 is set to be longer than the length of the rear guide portion 108b of the left upper transport guide 108.

  As shown in FIG. 17, the angle at which the front guide portion 108 a of the left upper transport guide 108 inclines obliquely rearward and upward in a side view is substantially the same as that of the front guide guide 109 </ b> C provided at the front portion of the transport guide portion 100. The angle that is set to a parallel angle and that is inclined obliquely rearward and upward of the rear guide portion 108b of the left upper conveyance guide 108 in a side view is substantially parallel to the mounting angle of the auxiliary conveyance device 11 and the rotary packer 12. Is set to

  The angle at which the front guide portion 107a of the right upper conveyance guide 107 in the side view is inclined obliquely rearward and upward is set to an angle substantially parallel to the front guide guide 109C provided at the front portion of the conveyance guide portion 100, The angle at which the rear guide portion 107b of the right upper transport guide 107 in the side view is inclined obliquely rearward and upward is set to be substantially parallel to the mounting angle of the auxiliary transport device 11 and the rotary packer 12.

  The rear guide part 107b of the right upper transport guide 107 is set to be parallel to the rear guide part 108b of the left upper transport guide 108 in a side view, and the rear guide part 107b of the right upper transport guide 107 is set to the left upper transport guide 108. It is set to be positioned higher than the rear guide part 108b.

  As shown in FIGS. 16 and 17, the right conveyance guide 105, the left conveyance guide 106, the right upper conveyance guide 107, and the left upper conveyance guide 108 are attached to the bracket 101 by the attachment bracket 110 so that the attachment position in the front-rear direction can be adjusted. It is fastened and fixed to the upper surface side from above.

  As described above, by configuring the conveyance guide unit 100, the right divider 80R and the central divider 80C are cooperated with the lower guide body 104R, the right conveyance guide 105, and the right upper conveyance guide 107 of the lower conveyance guide 104. 2 crops that have been supplied from between the two are gradually tilted to the right side auxiliary transport device 11R side and gathered to the right side auxiliary transport device 11R side while preventing overfalling, and then pushed backwards without difficulty. Can supply. Further, in cooperation with the lower guide body 104L of the lower conveyance guide 104, the left conveyance guide 106, and the left upper conveyance guide 108, one crop of crops supplied from between the left divider 80L and the central divider 80C. Can be gradually gathered to the left side auxiliary conveyance device 11L side and fed rearwardly.

[About the space behind the right-hand raising device]
Based on FIG. 3, FIG. 4 and FIG. 8, the space S behind the right elevating device 9R will be described. As shown in FIG. 8, a right-hand drive shaft 52 is connected to the upper and lower central parts of the right-hand drive device 9R, and the power from the right-hand drive shaft 52 is arranged along the back of the right drive device 9R. A space S can be formed in the back part of the upper part of the right pulling device 9R by adopting a configuration in which the right pulling device 9R is raised and transmitted to the input shaft 59 via the chain transmission mechanism 70.

  As a result, the operating unit 4 can be positioned in the space S formed in the upper back portion of the right-hand raising device 9R, and the mowing unit 3 is disposed at a position close to the front cover 17 of the rear operating unit 4. Can be set. As a result, as shown in FIG. 2, visibility in the forward and lower direction from the operator seated on the driver's seat 4a can be improved, and workability of crop cutting work (for example, positioning work between the crop and the divider 80) can be improved. At the same time, the overall length and width of the combine can be set short, and the combine can be configured compactly in the front-rear and left-right directions.

  As shown in FIGS. 3 and 4, a notch 2b that is notched so as to be recessed backward is formed in the lower left portion of the front portion of the deck portion 2a. While the right bevel gear case 56 and the vicinity connected to the unit enter the notch 2b and the floor surface of the operation unit 4 (the floor surface on which the operator is boarded) is set at a low position from the farm scene T, the cutting unit 3 is configured to be disposed rearward. In addition, you may employ | adopt a different shape as a shape of the notch part 2b.

  In addition, the right bevel gear case 56 is raised at the center of the back of the device 9R by raising the right side, and the right drive device 9R is driven to rotate by the relatively light chain transmission mechanism 70, so that the weight is relatively heavy. The right bevel gear case 56 and the transmission mechanism to the right bevel gear case 56 can be disposed at a low position, the height of the center of gravity of the right pulling device 9R can be kept low, and the center of gravity of the cutting unit 3 can be lowered. Can do. As a result, it is possible to improve the stability when the mowing unit 3 is raised and lowered and the stability when the combine is traveling.

[Crop introduction status]
Based on FIG. 18, the introduction state of the crop (the operation of the conveyance guide unit 100) will be described. FIG. 18: shows the schematic front view for demonstrating the introduction condition of a crop. 18B, the height of the right auxiliary transport device 11RA is set to the same height as that of the left auxiliary transport device 11LA, and the height of the right transport guide 111 is set to that of the left transport guide 112. The introduction situation of the crop when set to the same height as the height is shown for comparison.

  As shown in FIG. 18B, when the heights of the right and left auxiliary conveyance devices 11RA and 11LA, the right and left conveyance guides 111 and 112, and the right and left upper conveyance guides 113 and 114 are set, the right auxiliary conveyance devices The space between the device 11RA and the right conveyance guide 111 is narrow, and the crop introduced from the vicinity of the right divider 80RA is pushed down by the right auxiliary conveyance device 11RA and the right conveyance guide 111 at a position far from the stock, Is considered to fall to the left side and be supplied backward. In particular, during the three-row cutting operation, two crops are introduced from between the central divider 80CA and the right divider 80RA, so that the crop on the right divider 80RA side overlaps the crop on the central divider 80CA side. It is thought that crops fall to the left side and are fed backwards.

  As shown in FIG. 18 (a), the height of the right auxiliary transport device 11R is set to be higher than the height of the left auxiliary transport device 11L, and the transport guide portion 100 is configured in an asymmetric shape as described above. Accordingly, the fall of the crop introduced from the vicinity of the right divider 80R is prevented by the right auxiliary conveyance device 11R and the right conveyance guide 105, and the crop is difficult to fall to the left side. The crop guided to the rear by the right transport guide 105 is supplied to the rear without difficulty through a widely secured space between the right auxiliary transport device 11R and the right transport guide 105, and is less likely to fall to the left. The crop is cut by the reaping device 10 and supplied to the threshing device 5. As a result, the crop can be mowed with little falling to the left side, a clean cut mark can be formed, and the crop with the ears relatively aligned can be supplied to the threshing device 5.

[First Alternative Embodiment of the Invention]
In the above-described [Best Mode for Carrying Out the Invention], the right pulling transmission shaft 52 is connected to the upper and lower central portions of the right pulling device 9R, and the upper portion of the right pulling device 9R is connected via the chain transmission mechanism 70. Although an example in which the right side is raised and transmitted to the input shaft 59 is shown, a transmission structure of the right side raising device 9R as shown in FIG. 19 or 20 may be adopted.

  As shown in FIG. 19 (a), a right pulling transmission shaft 52A extending forward from the base end of the cutting part frame 29 is connected to the lower portion of the right pulling device 9R, and this right pulling transmission shaft 52A is connected. Is transmitted through the chain transmission mechanism 70A disposed along the back of the right pulling device 9R to the right pulling input shaft 59A above the right pulling device 9R, and the right pulling device 9R is transmitted. You may comprise so that rotation drive is possible.

  In this case, the lower sprocket 71A is interlocked and connected to the tip of the right pulling transmission shaft 52A extending forward from the right gear case 56A, and the lower sprocket 71A and the right pulling upper portion connected to the input shaft 59A. A chain transmission mechanism 70A is configured by winding and stretching the transmission chain 73A across the sprocket 72A. Thereby, space S1 can be formed in the back part of the right raising apparatus 9R.

  As shown in FIG. 19 (b), the right-hand drive shaft 52B extending forward from the gear case 26 is connected to the upper portion of the right-hand drive device 9R, and the power from the right drive shaft 52B is Via the chain transmission mechanism 70B disposed along the back of the right pulling device 9R, the right pulling device 9R is transmitted to the right pulling input shaft 59B at the upper and lower central part (or lower part (not shown)). The right pulling device 9R may be configured to be rotationally driven.

  In this case, the upper sprocket 72B is interlocked to the tip of the pulling transmission shaft 52B extending forward from the right gear case 56B, and the lower sprocket is interlocked and connected to the upper sprocket 72B and the right pulling input shaft 59B. The chain transmission mechanism 70B is configured by winding and stretching the transmission chain 73B across 71B. A drive sprocket 115 is interlocked and connected to the input shaft 59B that is raised to the right. The drive sprocket 115, the drive sprocket 62, the tension sprocket 63, the first chain guide roller 64, and the second chain guide roller 65 Thus, the chain 66 is wound and stretched, and the drive sprocket 115 is rotationally driven, whereby the right-side pulling device 9R is configured to be rotationally driven. Thereby, space S2 can be formed in the back part of the right raising apparatus 9R.

  As shown in FIG. 20 (a), a right-hand drive shaft 52C extending forward from the base end of the cutting part frame 29 at the upper and lower central part (or lower part (not shown)) of the right hand raising device 9R. , And the power from the right-hand drive shaft 52C is transmitted to the right-hand drive input shaft 59C which is disposed at the upper and lower central part of the right hand drive device 9R and extends forward from the right bevel gear case 56C. The right pulling device 9R may be configured to be rotationally driven. In this case, the chain is raised across the drive sprocket 116, the drive sprocket 62, the tension sprocket 63, the first chain guide roller 64, and the second chain guide roller 65 that are raised to the right and interlocked with the input shaft 59C. 66 is wound and stretched, and the drive sprocket 116 is rotationally driven, so that the right-side pulling device 9R can be rotationally driven. Thereby, space S3 can be formed in the back part of the right raising device 9R.

  As shown in FIG. 20 (b), a right pulling transmission shaft 52D extending forward from the base end portion of the cutting part frame 29 is connected to the lower portion of the right pulling device 9R, and this right pulling transmission shaft 52D is connected. Is transmitted to the right-hand side input shaft 59D, which is disposed at the lower part of the right-hand raising device 9R and extends forward from the right-hand gear case 56D, and the right-hand raising device 9R can be driven to rotate. Alternatively, the right-hand raising transmission shaft 52D may be extended forward from the right gear case 56D and the right-hand raising power transmission shaft 52D may be used to cause the right-hand raising device 9R to rotate.

  In this case, the second chain guide roller 65 is interlocked and connected to the input shaft 59D so as to function as a drive sprocket, and the second chain guide roller 65, the drive sprocket 62, the tension sprocket 63, The chain 66 is wound and stretched across the first chain guide roller 64, and the second chain guide roller 65 is rotationally driven, whereby the right-side pulling device 9R can be rotationally driven. Thereby, space S4 can be formed in the back part in the upper part of the right raising apparatus 9R, and an up-down center part.

[Second Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention] and [First Alternative Embodiment], the power from the right pulling transmission shaft 52 is raised via the chain transmission mechanism 70 on the right pulling device 9R. However, a power transmission structure similar to that of the right pulling device 9R may be adopted for the left pulling device 9L. Thereby, the right raising device 9R and the left raising device 9L can be used in common, and not only the manufacturing cost can be reduced, but also the height of the center of gravity of the cutting unit 3 can be set lower.

  In the above-mentioned [Best Mode for Carrying Out the Invention] and [First Different Embodiment of the Invention], the example in which the chain transmission mechanism 70 is adopted as the transmission mechanism has been shown, but a different configuration is adopted as the transmission mechanism. For example, as a winding transmission mechanism (winding transmission mechanism), a timing belt in which a tooth shape (for example, a trapezoidal tooth profile) is formed on a rubber belt, and a pulley (not shown) meshing with the timing belt, You may employ | adopt belt transmission mechanisms (not shown), such as a pulley (not shown) in which V belt and V groove | channel were formed. In this case, the timing belt or the V-belt is wound and stretched in a lateral manner so that the belt arrangement surface of the belt transmission mechanism is raised to the right side and arranged along the back portion of the device 9R. Thereby, the further weight reduction of a transmission mechanism can be achieved.

[Third Another Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention], [First Alternative Embodiment of the Invention] and [Second Alternative Embodiment of the Invention], the driving unit 4 is provided on the right side of the front portion of the traveling machine body 2. However, the present invention can also be applied to a combine including the driving unit 4 on the left side of the front portion of the traveling machine body 2. In this case, the transmission structure to the right pulling device 9R in the above-mentioned [Best Mode for Carrying Out the Invention] may be adopted as the transmission structure to the left pulling device 9L.

  In the above-mentioned [Best Mode for Carrying Out the Invention], [First Alternative Embodiment of the Invention] and [Second Alternative Embodiment of the Invention], the right pulling device 9R and the left pulling device 9L However, the present invention can be similarly applied to a combine provided with three or more pulling devices (not shown) in the front part of the mowing unit 3.

  In the above-mentioned [Best Mode for Carrying Out the Invention], [First Alternative Embodiment of the Invention] and [Second Alternative Embodiment of the Invention], the combine configured to be able to process three crops. However, the present invention can be similarly applied to a combine that can process four or more crops.

Combine left side view Combine right side view Overall plan view of combine Combine front view Schematic diagram of combine power transmission structure Developed transmission system to the mowing unit Left side view of the transmission system to the left pulling device Right side view of the transmission system to the right pulling device Longitudinal right side view near the chain transmission mechanism Longitudinal front view of pulling device Partially omitted plan view of the cutting part Longitudinal front view of the cutting part Schematic plan view explaining the relationship between crops and dividers Schematic plan view explaining how to set the cutting width Plan view near the transport guide Plan view of the transport guide Right side view of the transport guide Schematic front view explaining the introduction status of crops The schematic right view which shows the transmission structure to the raising apparatus in 1st another form of implementation of invention The schematic right view which shows the transmission structure to the raising apparatus in 1st another form of implementation of invention

2 traveling machine body 2a deck part 2b notch part 3 cutting part 4 driving part 9R right side raising device (driving part side raising device)
11R Auxiliary transfer device 12R Rotating packer 29 Mowing unit frame 52 Pulling right side drive shaft (running side drive shaft)
54 Packer drive shaft 56 Right bevel gear case (gear case)
57 Intermediate drive shaft 59 Right-side input shaft (input shaft)
70 Chain transmission mechanism (transmission mechanism)
74 Chain cover 77 Bearing p Lateral fulcrum S Space

Claims (6)

A driving unit provided on the right or left side of the traveling machine body, a deck part that supports the driver's seat of the driving part, and a front part of the traveling machine body are coupled and supported so as to be able to swing up and down around a lateral fulcrum. A cutting part frame that supports the part,
The driving unit side raising device of the mowing unit is disposed at a position overlapping the driving unit in front view,
Connected to the upper and lower central part or lower part of the driving part side pulling device, the driving part side pulling up transmission shaft extended forward from the base end part of the cutting part frame,
The power from the driving unit-side driven transmission shaft is transmitted to the input shaft at the upper part of the driving unit-side raised device via a transmission mechanism arranged along the back of the driving unit-side lifting device, The driving unit side pulling device is configured to be rotationally driven,
A gear case that is pulled up by the driving unit and connects the transmission shaft and the transmission mechanism;
A self-removing combine in which a notch portion into which the gear case can enter is formed at a lower portion of the deck portion. The transmission mechanism is constituted by a chain transmission mechanism,
The self-removable combine according to claim 1, wherein a chain arrangement surface of the chain transmission mechanism is arranged along a back portion of the operating unit side raising device. A chain cover that covers the transmission mechanism and the input shaft from the back side is provided,
The self-removable combine according to claim 2 , wherein a bearing that rotatably supports the rear end side of the input shaft is supported by the chain cover. The gear case is provided with an intermediate drive shaft that is raised on the driving unit side and connected to the transmission shaft,
The self-removable combine according to claim 2 or 3 , wherein the chain of the transmission mechanism is wound around the intermediate drive shaft and the input shaft. The self-removing combine according to any one of claims 1 to 4 , wherein a front end of the operating unit is located in a space formed behind the transmission mechanism of the operating unit side pulling device. A packer drive shaft that is driven by the driving section and is rotatably inserted on the transmission shaft so as to be the same axis as the driving section and the transmission shaft;
The self-detaching combine according to any one of claims 1 to 5 , further comprising an auxiliary transport device and a rotary packer that are fixed to the packer drive shaft and rotate with the rotation of the packer drive shaft.

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