JP3690974B2 - Combine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a small combine suitable for use in a field such as a mountainous area.
[0002]
[Prior art]
When transporting such a combine, it is common to use a light truck because of the road conditions peculiar to mountainous areas. Therefore, conventionally, as a combine as described above, A walking type that can be loaded was used.
[0003]
[Problems to be solved by the invention]
However, the walk-type combine is formed in the threshing device and the grain storage unit arranged behind the harvesting and transporting unit, so that the position of the harvesting and transporting unit and the planting to be harvested are formed. Field work that has to be performed while aligning the position of the cereal with the threshing device and the grain storage part, which are bulky, and that is poor in workability. It is necessary to use a ride-type combine to improve them in fields such as mountainous areas. Even though the combine is a small one for two-row cutting, it is a long one that cannot be loaded on the platform of a light truck. It had become so can not be used.
[0004]
An object of the present invention is to provide a compact combine that can be loaded on a light truck platform, to improve workability and reduce labor when performing harvesting and harvesting work in a field such as a mountainous area. It is to be able to plan.
[0005]
[Means for Solving the Problems]
〔Constitution〕
  In order to achieve the above object, in the invention according to claim 1 of the present invention, the cutting and conveying unit and the boarding operation unit are disposed at the front portion of the traveling machine body so that the boarding operation unit is located on one side of the left and right. Parallel to the left and right direction, equipped with a handling cylinder that rotates around the front and rear axis and a swing sorting mechanism that sorts the processed material while transporting it in the left and right direction behind the cutting and transporting section and the boarding operation section. Arranged a threshing device,
  Behind the threshing device, a waste straw cutting device and a grain storage unit,The waste wall cutting device is located on the other side of the rear part of the airframe, which is the opposite side to the boarding operation part arranged on the left and right sides of the front part of the airframe, and the grain storage part is located at the rear part of the airframe. It is arranged to be located on the same left and right side as the driving part,
  A cylinder-type cutter that divides the left and right-side discharge straw transported backward from the handling cylinder into two along the transport direction, and chops in order from the refracting end.And a bagging device for bagging the grain sent out from the threshing device.Configure
  An engine is disposed in the boarding operation unit in a state of being symmetrically positioned with respect to the cylinder-type cutter.
[0006]
[Action]
According to the first aspect of the invention, in the threshing apparatus, the swing sorting mechanism having a length longer than that of the handling cylinder is arranged in the left-right direction to sort the processed material while transporting it in the left-right direction. Compared with the case where the mechanism is arranged in the front-rear direction for sorting while conveying the processed material in the front-rear direction, the front-rear length of the threshing device can be shortened, and the waste straw cutting device behind the threshing device And the grain storage part are arranged side by side in the left-right direction, the length in the front-rear direction can be shortened compared to the case where they are arranged in the front-rear direction. The front and rear lengths of the traveling machine body on which the apparatus and the grain storage unit are mounted can be shortened, so that the weight can be reduced, so that the total length of the combine can be shortened and the total weight can be reduced. So you can Although it has a driving part, it can be loaded on the platform of a light truck, so that it can also be used in fields such as mountainous areas where the combine can be transported only by light truck due to road conditions etc. become.
[0007]
Since the boarding operation part is provided, it is not necessary to walk in the muddy field during work, and the boarding operation part is arranged side by side with the cutting conveyance part in the left-right direction, so that the position of the cutting conveyance part and the cutting are obtained. When performing the harvesting work to match the position of the target planted cereal, it is not necessary to visually check the position through a bulky threshing device or grain storage unit, It is possible to reduce labor and improve workability.
[0008]
In addition, a threshing device is arranged behind the harvesting conveyance unit and the boarding operation unit, and a grain storage unit is arranged behind the threshing device, so that the threshing device and the grain storage unit are juxtaposed in the left-right direction. The balance between the left and right balance caused by the amount stored in the grain storage unit can be avoided, and a balance weight is provided on the side of the grain storage unit to balance the heavy threshing device. Since it is not necessary to deploy, it is possible to improve stability while further reducing the weight of the aircraft.
[0009]
  Moreover, in order to shorten the total length of the combine, it is not necessary to pack between the harvesting conveyance unit and the threshing device, so that the length necessary to change the harvested cereal meal to a suitable posture with respect to the threshing device. Can be secured easily between the reaping device and the threshing device of the reaping and transporting section, so that the threshing process is not adversely affected, and the pillow handling operation for manually supplying the reaping cereal to the threshing device There will be no hindrance.
  Furthermore, compared to the case where the waste wall cutting device is configured with a disk-type cutter that receives the right side waste wall from the handling cylinder toward the rear, and chops it with a plurality of disks in its posture, Since the left and right lengths of the installation space required for the arrangement of the waste straw cutting device behind the threshing device can be greatly reduced, the arrangement space of the grain storage part can be increased in the left and right direction accordingly. When the grain storage part is configured with a grain tank, the volume can be increased, and when the grain storage part is configured with a bagging device, two straw bags are arranged in parallel in the left-right direction. Therefore, it is possible to improve the grain recovery efficiency.
[0010]
〔effect〕
  Therefore, it is possible to provide a ride-type combine that is effectively reduced in size and weight and enables a light truck to be loaded on the loading platform without adversely affecting the threshing process and pillow handling work. In addition to reducing labor and improving workability when harvesting and harvesting in fields such as the ground, the stability of the aircraft is improved.And improvement of grain recovery efficiencyCan now be planned.
[0014]
〔Constitution〕
  Claims of the invention2In the described invention, the above claims1In the mounted invention, the waste straw discharge state is a shredded discharge state in which the waste straw transported rearward from the handling cylinder is supplied to the waste straw cutting device, and without being supplied to the waste straw cutting device. It can be switched to the long straw discharge state where it is released as it is.
[0015]
[Action]
  Claims above2According to the described invention, it is possible to use the waste straw from the handling cylinder as a resource without requiring the trouble of attaching and detaching the waste straw cutting device, and leave it in the field without using it as a resource. The shredded release state can be revealed.
[0016]
〔effect〕
Therefore, while the reduction in size and weight enabling the loading of the light truck on the loading platform is effectively achieved, the discharge state of the discharged straw can be easily switched between the long discharge state and the shredded discharge state. It became so.
[0017]
〔Constitution〕
  Claims of the invention3In the described invention, the above-mentioned claim 1Or 2In the described invention, a dust discharge port is formed on a lateral side surface of the threshing apparatus on the boarding operation unit side.
[0018]
[Action]
  Claims above3According to the described invention, since the dust outlet of the threshing device is located on the boarding operation portion side located on the already-cutting side opposite to the cutting and conveying portion located on the uncutting side, the straw discharged from the threshing device It is possible to reliably prevent the inconvenience that dust such as trash falls on the uncut grain culm, and the dust that falls on the uncut grain culm is supplied to the threshing device together with the harvested culm. Can be avoided.
[0019]
〔effect〕
Accordingly, it has become possible to effectively reduce the size and weight of the combine that enables the light truck to be loaded on the loading platform without causing a decrease in sorting performance and sorting efficiency.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows the entire left side of the self-decomposing combine, FIG. 2 shows the entire right side, and FIG. 2 shows the entire plane. The combine is composed of a pair of left and right crawler type traveling devices 1. The cutting and conveying part 3 is connected to the left side of the front part of the traveling machine body 2 so as to be swingable up and down around the left and right axis P1, and the control tower 4 and the driver's seat 5 are connected to the front right side of the traveling machine body 2 The threshing apparatus which forms the boarding operation part 6 provided and performs the threshing process, the sorting process, etc. on the harvested cereal rice cake from the harvesting conveyance part 3 in the rear part of the harvesting conveyance part 3 and the boarding operation part 6 in the traveling machine body 2 7 is mounted on the left rear portion of the threshing device 7 in the traveling machine body 2 with a waste wall cutting device 8 for shredding the waste straw from the threshing device 7, and the right rear portion of the threshing device 7 in the traveling machine body 2. Next, the grain conveyed from the threshing device 7 via the lifting conveyor 9 It is constructed by arranging the bagging apparatus 11 packed in rice bag 10 as an example of a grain reservoir.
[0021]
As shown in FIGS. 1, 2, and 4 to 6, the left and right crawler type traveling devices 1 are provided with driving wheels 13 at the front part of the track frame 12, and idle wheels 14 at the rear part of the track frame 12. The three wheels 15 are arranged between the drive wheel 13 and the idler wheel 14 and the crawler belt 16 is stretched so as to surround them. The main frame of the traveling machine body 2 is connected via an L-shaped front connection frame 17 extending upward from the track frame 12 and a mountain-shaped rear connection frame 18 extending over the left and right track frames 12. 19 is connected.
[0022]
Incidentally, the front and rear connecting frames 17 and 18 are made of a round pipe material that can be easily bent, and the left and right front connecting frames 17 pass through a main frame 19 made of a square pipe material in the vertical direction. It has become.
[0023]
As shown in FIGS. 1 to 5, the cutting and conveying unit 3 includes a cutting frame 21 that is supported by a support member 20 that extends over the left and right front connecting frames 17 so as to be swingable up and down around a horizontal axis P <b> 1. And three dividers 22 for scooping up the planted cereals, left and right pulling devices 23 for scrambling the planted cereals, a clipper-shaped cutting device 24 for cutting the planted side of the planted cereals, and A conveying device 25 that changes the posture from a vertical posture to a horizontal posture while conveying the harvested cereals backward is provided, and the like is configured to perform the cutting and conveying for two strips.
[0024]
As shown in FIG. 7, the threshing device 7 has a feed chain 26 disposed on the left outer side sandwiching the stock side of the harvested cereal from the transport device 25 and transporting it backwards, The handling cylinder 27 mounted on the left half of the device 7 rotates around the axial center P <b> 2 in the front-rear direction, so that the tip side of the harvested cereal culm guided on the receiving net 28 by the conveyance by the feed chain 26. The tangs 29 deployed at the lower left side of the handling cylinder 27 rotate around the axis P3 in the front-rear direction and flow to the right to receive the threshing process. A wind sorting process is performed on the processed material leaked from the mesh 28, and the swing sorting mechanism 31 disposed below the receiving mesh 28 swings in the left-right direction by the rotation of the drive shaft 32 facing forward and backward. As a result, the processed material supplied to the swing sorting mechanism 31 is conveyed to the right. The processed product is subjected to a sieve sorting process, and the No. 1 screw 33 disposed on the upper side in the sorting direction below the swing sorting mechanism 31 rotates around the axis P4 in the front-rear direction, thereby swinging. The grain that has leaked from the upper side of the sorting direction of the sorting mechanism 31 is conveyed toward the lifting conveyor 9, and the second screw 34 disposed on the lower side of the sorting direction below the swinging sorting mechanism 31 is directed forward and backward. By rotating around the axis P5, the mixture of grains and broken straw leaked from the lower side of the sorting direction of the swing sorting mechanism 31 is transported toward the thrower-type processed material transport mechanism 35, The thrower blade 36 of the processed material transport mechanism 35 rotates integrally with the second screw 34 so that the mixed material is reduced onto the receiving net 28 and reprocessed.
[0025]
Among the processed materials, dust such as cut straw and straw scraps conveyed to the rear end of the swing sorting mechanism 31 without leaking from the swing sorting mechanism 31 is the right side on the boarding operation unit 6 side of the threshing device 7. It is discharged from a dust outlet 37 (see FIGS. 2 and 7) formed on the surface, and this causes the inconvenience that dust such as straw scraps discharged from the threshing device 7 falls on the uncut grain culm. Thus, it is possible to reliably prevent the reduction in sorting performance and sorting efficiency caused by the dust that has fallen on the uncut cereal meal being supplied to the threshing device 7 together with the harvested grain meal. .
[0026]
As shown in FIGS. 8 and 9, the drainer cutting device 8 is provided with a locking pin that is mounted on the first roll 38 that rotates about the axial center P <b> 6 in the left-right direction so as to move out and withdraw. 39 squeezes the right-and-left discharger from the feed chain 26 toward the second roll 40 that is locked to the middle portion thereof and is adjacent to the first roll 38 and rotates about the left-right axis P7. Thus, the pine needle-shaped folds are folded into two, and the pine needle-shaped waste straw is rotated around the fixed blade 41 and the left-right axis P8 by rotating the rolls 38 and 40. A cylinder-type cutter that cuts in order from the refracting end of the exhaust straw by feeding it toward the disk is adopted. Where to use cutters Compared with the threshing device 7, the left and right lengths of the arrangement space required for the arrangement of the waste straw cutting device 8 can be greatly reduced, and accordingly, the arrangement space of the bagging device 11 is reduced in the horizontal direction. Can be made larger.
[0027]
As shown in FIGS. 1 to 3, the bagging device 11 is directed rearward from a mounting table 43 formed on the right rear portion of the traveling machine body 2 and a support frame 44 erected on the front portion of the mounting table 43. A left and right bifurcated shape in which the grain from the lifting conveyor 9 is connected to the conveying terminal of the lifting conveyor 9 on the left and right baskets 10 supported by the extended pair of left and right support rods 45. And a shutter 47 for switching the flow path of the grain in the chute 46, so that one full bag 10 is supplied to the empty bag. Since the grain can be stored in the other bag 10 during the replacement with the bag 10, the grain recovery efficiency can be improved as compared with the case of the single bag type.
[0028]
Compared with the case where the rocking sorting mechanism 31 having a length longer than that of the handling cylinder 27 is provided in the front-rear direction, the front-rear length of the threshing device 7 can be shortened. Compared with the case where the waste straw cutting device 8 and the bagging device 11 are juxtaposed in the front-rear direction behind the device 7, the front-rear length can be shortened. The weight of the combine can be shortened and the overall weight can be reduced, so that the weight of the rider with the riding operation unit 6 can be reduced. It can be loaded on a truck bed, and can be used in fields such as mountainous areas where the combine can be transported only by a light truck due to road conditions.
[0029]
As a result, in the harvesting and harvesting work in the field such as a mountainous area where a walk-type combine that can be loaded on a light truck is used, it is not necessary to walk in the muddy field during the work, and the position of the harvesting transport unit 3 Therefore, it is possible to easily perform the alignment work to match the position of the planted culm to be harvested, and to reduce the labor and improve the workability when performing the harvesting and harvesting work.
[0030]
Moreover, it is possible to avoid the imbalance in the left / right balance caused by the storage amount of the bagging device 11 that occurs when the threshing device 7 and the bagging device 11 are juxtaposed in the left-right direction, and the threshing is heavy. Since it is not necessary to provide a balance weight in the bagging device 11 in order to balance with the device 7, it is possible to improve the stability while further reducing the weight of the fuselage, and further shortening the total length of the combine. In doing so, since there is no need to pack between the harvesting transport unit 3 and the threshing device 7, the length necessary to change the harvested cereal cocoon to a suitable posture with respect to the threshing device 7, 3 can be secured easily between the reaping device 24 and the threshing device 7, so that the threshing process is not adversely affected, and the pillow handling operation for manually supplying the reaped cereal to the threshing device 7 is also possible. To be able to do well That.
[0031]
As shown in FIGS. 8 and 9, a lid 48 that can be opened and closed around a horizontal axis P <b> 9 is mounted on the upper portion of the drainer cutting device 8. A cover 49 that covers the waste wall conveying path from the chain 26 to the waste wall cutting device 8 is provided so that the position of the cover 49 can be changed around the axis P10 in the left-right direction between the raised position and the lowered position.
[0032]
The cover 49 is equipped with an operation arm 50 that can be swung around the left-right axis P11. The operation arm 50 engages with the engagement pin 51 provided in the threshing device 7 to detach the cover 49. A long hole 52 that can be switched and held between an open position and a closed position is formed, and in the state where the cover 49 is held at the closed position, the lid 48 is held by contact between the free end and the lid 48. It is designed to be held in an open posture. 8 and 9 is an urging spring that maintains the operating arm 50 in an engagement posture that holds the cover 49 in the open position and the closed position, and reference numeral 54 indicates the closed position of the cover 49. Is switched to a state in which the waste straw from the threshing device 7 is guided to the waste straw cutting device 8, and the waste straw from the threshing device 7 is switched to the opening position of the cover 49. It is a guide rod which switches to the state which permits passing above.
[0033]
That is, by operating the lid 48 and the cover 49 to open and close, the waste straw release state is supplied to the shredder release state in which the waste straw from the threshing device 7 is supplied to the waste straw cutting device 8, and to the waste straw cutting device 8. It is possible to easily switch to the long straw discharge state in which the discharge is performed as it is without the need for attaching and detaching the waste straw cutting device 8.
[0034]
As shown in FIGS. 2 to 5 and FIG. 10, an engine 55 is mounted below the driver seat 5 in the traveling machine body 2 with the output shaft 56 facing forward and backward. The transmission is transmitted to a transmission case 59 having a front-rear input shaft 58 via a left-right first belt tension clutch 57, and a front-rear drive shaft 61 is transmitted via a left-right second belt tension clutch 60. It is transmitted to the threshing device 7 provided, and further transmitted to the front-rear transmission shaft 63 mounted on the left front connection frame 17 via the third belt tension clutch 62 facing left and right.
[0035]
That is, since the belt tension clutches 57, 60, 62 are arranged in the left-right direction, the total length of the combine can be made shorter than in the case where they are arranged in the front-rear direction. Yes.
[0036]
As shown in FIG. 11, in the mission case 59, the bevel gear 64 that converts the power around the longitudinal axis input to the input shaft 58 into the power around the left and right axis, and the power from the bevel gear 64 as the forward power. The gear-type transmission mechanism 65 that can be switched to the reverse power and the forward power can be switched in three stages, and the power after the shift from the gear-type transmission mechanism 65 are driven by the left and right crawler type travel devices 1. A transmission state that is transmitted to a corresponding one of a pair of left and right output shafts 66 that is a shaft, a blocking state that is not transmitted to the corresponding output shaft 66, and a braking state in which the corresponding output shaft 66 is braked and stopped. A pair of left and right side clutch brakes 67 and the like configured to be able to be switched and displayed are provided internally.
[0037]
In other words, the internal space of the mission case 59 is effectively used to convert the power around the longitudinal axis from the engine 55 into the power around the lateral axis. Compared with the case of providing the configuration, it is possible to simplify the configuration and avoid an increase in the size of the combine as a whole.
[0038]
As shown in FIG. 10, the drive shaft 61 of the threshing device 7 is also used as the screw shaft of the second screw 34, and the power from the engine 55 transmitted to the screw shaft 61 is used as the first belt transmission mechanism. 68 is transmitted to the carp 29 and the first screw 33, and is transmitted from the carp 29 to the drive cylinder 32 and the drive shaft 32 of the swing sorting mechanism 31 via the second belt type transmission mechanism 69.
[0039]
As shown in FIGS. 8 to 10 and 12, the power transmitted to the carp 29 is transmitted to the rotary blade 42 of the waste wall cutting device 8 via the third belt type transmission mechanism 70, the bevel gear 71, and the like. It is transmitted from the blade 42 to the first roll 38 via the first chain transmission mechanism 72, transmitted from the first chain transmission mechanism 72 to the second roll 40 via the small diameter gear 73 and the large diameter gear 74, and It is transmitted from the roll 38 to the feed chain 26 of the threshing device 7 through the second chain transmission mechanism 75 and the third chain transmission mechanism 76.
[0040]
In this transmission configuration, when the waste straw cutting device 8 is clogged with the waste straw, the feed chain 26 is driven and stopped in conjunction with the suspension of the operation. In spite of the occurrence of clogging of the waste straw in the straw cutting device 8, it is possible to avoid the disadvantage that the waste straw from the threshing device 7 is supplied to the waste straw cutting device 8 by the feed chain 26.
[0041]
As shown in FIGS. 4, 5, 10, 13, and 14, a drive shaft 124 is linked to the transmission shaft 63 via a chain transmission mechanism 123, and a universal joint 77 is connected to the drive shaft 124. A screw shaft 78 is interlockedly connected to the screw shaft 78. The screw shaft 78 includes a first member 79 supported by the cutting frame 21 so as to be rotatable about a left-right axis P12, and a first member 79 vertically oriented. A female screw member 81 rotatably supported in two directions is screwed onto the cutting frame 21 via a second member 80 rotatably supported around the axis P13.
[0042]
That is, in this combine, a screw feed type lifting operation mechanism 82 that moves the cutting and conveying unit 3 up and down by forward and reverse rotation of a screw shaft 78 that is installed so as to freely change the posture between the traveling machine body 2 and the cutting and conveying unit 3. The screw shaft 78 is connected to the transmission shaft 63 via the universal joint 77, and the female screw member 81 is mounted on the cutting frame 21 so as to be rotatable in two directions. The reaping and conveying section 3 can be moved up and down by a screw in a state without any problem.
[0043]
In the lifting operation mechanism 82, the lead angles of the screw shaft 78 and the female screw member 81 are set to a large angle at which the screw shaft 78 can be reversed by the weight of the cutting and conveying unit 3. Further, the elevating operation mechanism 82 is equipped with a braking mechanism 83 that stops the rotation of the screw shaft 78.
[0044]
As shown in FIGS. 4, 5, and 15, the braking mechanism 83 includes an output V pulley 84 that is a rotating body that rotates integrally with the transmission shaft 63 in the third belt tension clutch 62, and a V pulley of the V pulley 84. The brake arm 88 is formed by mounting a brake shoe 86 that can be engaged and joined to the groove 85 at the free end of the swing arm 87.
[0045]
The braking arm 88 moves from the lower side in the rotation direction of the V pulley 84 when the V pulley 84 rotates in the reverse direction due to the weight of the cutting and conveying unit 3 to the V pulley 84 in a tension posture that bites the V pulley 84 by the rotation. The V pulley 84 is supported by the main frame 19 so as to be swingable about the axial center P14 facing forward and backward, and by a biasing spring 89 extending from the main frame 19 to the braking arm 88. Is urged to join.
[0046]
As shown in FIG. 16, the braking mechanism 83 is reversely rotated by the weight of the cutting and conveying unit 3, and the sprocket 126 for output, which is a rotating body interlocking with the screw shaft 78 in the chain transmission mechanism 123. From the lower side of the rotation direction of the sprocket 126 at the time, the rotation of the sprocket 126 causes the main frame 19 to face the main frame 19 such that the free end engages and engages with the tooth groove 127 of the sprocket 126. You may make it comprise from the braking arm 88 which consists of the rocking | swiveling arm 128 supported so that rocking | swiveling around the shaft center P21 was possible. Incidentally, in this configuration, the braking arm 88 is contacted and biased toward the sprocket 126 by a biasing spring 129 that extends from the main frame 19 to the braking arm 88.
[0047]
As shown in FIGS. 4, 5, 15, 16, and 17, the braking arm 88 is capable of cross swinging about the left and right axis P <b> 15 and the front and rear axis P <b> 16 around the control tower 4. A neutral return-type control lever 90 is provided via a first balance arm 91 facing forward and backward, which is mounted so as to be swingable integrally with the control lever 90, and a first linkage wire 92 extending from the rear end to the braking arm 88. In conjunction with the operation of the control lever 90 to the lowering position on the front side, it is separated from the V pulley 84 (sprocket 126 in FIG. 16) against the bias of the biasing spring 89 (biasing spring 129 in FIG. 16). Then, in conjunction with the operation of the control lever 90 to the neutral position or the rearward raised position, the biasing spring 89 (biasing spring 129 in FIG. 16) biases against the pulley 84 (sprocket 126 in FIG. 16). They are linked together.
[0048]
As shown in FIGS. 5, 15, and 17, the first balance arm 91 has a front end supported by a transmission shaft 63 mounted on the left front connection frame 17 so as to be swingable about its axis P <b> 17. The tension arm 93 of the three-belt tension clutch 62 is urged across the tension arm 93 from the main frame 19 in conjunction with the operation of the control lever 90 to the rearward raising position via the second linkage wire 125. The third belt tension clutch 62 is switched to the transmission state against the urging of the spring 95, and the urging of the urging spring 95 interlocks with the operation of the control lever 90 to the neutral position or the lowering position on the front side. The three-belt tension clutch 62 is linked so as to be switched to the disconnected state.
[0049]
With the above configuration, when the control lever 90 is operated to the raised position, the transmission state of the third belt tension clutch 62 and the state where the braking arm 88 is joined to the V pulley 84 by the biasing spring 89 are present. As a result, the brake arm 88 is repelled in the direction away from the V pulley 84 by the V pulley 84 driven to rotate by the power from the engine 55, and the screw shaft 78 that rotates integrally with the V pulley 84 is provided. Since the female screw member 81 is screw-driven toward the cutting and conveying unit 3 by being driven forward, the cutting and conveying unit 3 can be raised without any trouble.
[0050]
Conversely, when the control lever 90 is operated to the lowered position, the third belt tension clutch 62 is disconnected and the brake arm 88 is separated from the V pulley 84 against the bias of the bias spring 89. As a result, the screw shaft 78 reverses in response to the weight of the cutting and conveying unit 3 to feed the female screw member 81 toward the traveling machine body 2 side. The part 3 can be lowered by its own weight smoothly.
[0051]
When the control lever 90 is operated to the neutral position, the disengaged state of the third belt tension clutch 62 and the state where the braking arm 88 is joined to the V pulley 84 by the urging of the urging spring 89 appear. As a result, the braking state of the braking mechanism 83 in which the braking arm 88 bites into the V pulley 84 that receives the weight of the cutting and conveying unit 3 and reverses with the screw shaft 78 in a striking posture appears. As a result, the cutting and conveying section 3 can be reliably stopped up and down.
[0052]
That is, since the lifting operation mechanism 82 is configured as a screw feed type that moves the cutting and conveying unit 3 up and down by forward and backward rotation of the screw shaft 78, when configured as a hydraulic type that requires a hydraulic pump, a hydraulic cylinder, and the like. In comparison, manufacturing costs and maintenance costs can be reduced and maintenance can be facilitated.
[0053]
In addition, since it is not necessary to provide a dedicated prime mover (for example, an electric motor) for rotating the screw shaft 78 or a forward / reverse switching mechanism for switching the rotation direction of the screw shaft 78, the configuration can be simplified and the manufacturing cost can be reduced. Reduction and maintenance can be further facilitated.
[0054]
As shown in FIGS. 11 and 17, the control lever 90 includes a left and right second balance arm 94 that is mounted on the control lever 90 so as to be integrally swingable, and an operation arm of the corresponding side clutch brake 67 from the left and right ends thereof. The transmission state of the left and right side clutch brakes 67 is displayed in conjunction with the operation in the left or right direction from the neutral position of the control lever 90 via the left and right third linkage wires 96. From the straight traveling state in which the crawler type traveling device 1 is driven at a constant speed, the slow turning state in which the side clutch brake 67 corresponding to the operation direction is released and the one crawler type traveling device 1 is idled, and the operation thereof The braking state of the side clutch brake 67 corresponding to the direction can be displayed and the sudden turning state in which one of the crawler type traveling devices 1 is braked and stopped can be displayed. It has been linked to.
[0055]
As shown in FIGS. 4, 5, and 10, the left front connecting frame 17 is a mechanical type that spans between the linkage pin 97 of the cutting and conveying unit 3 and the tension arm 93 of the third belt tension clutch 62. A linkage arm 98 as a linkage mechanism is swingably connected around a left-right axis P18. The linkage arm 98 moves the tension arm 93 in conjunction with reaching the upper limit position of the cutting and conveying unit 3. By operating, the third belt tension clutch 62 is switched from the transmission state to the cutoff state.
[0056]
That is, as the cutting and conveying unit 3 reaches the upper limit position, the ascent of the cutting and conveying unit 3 can be automatically stopped, so that the female screw to the incomplete screw portion 78A of the screw shaft 78 can be stopped. Since the biting of the member 81 can be prevented, it is possible to prevent the lifting / lowering operation of the cutting and conveying unit 3 from being performed due to the biting.
[0057]
As shown in FIGS. 2 and 3, a steering box 99 is provided at a location adjacent to the cutting and conveying unit 3 in the boarding operation unit 6, and a position-holding type accelerator lever 100 is provided at the front of the steering box 99, A position-holding type speed change lever 101 is arranged at the front and rear intermediate part of the control box 99, and a position-holding type harvesting clutch lever 102 and a threshing clutch lever 103 are provided side by side at the rear part of the control box 99. Yes.
[0058]
As shown in FIGS. 18 to 20, the accelerator lever 100 increases in engine speed as the accelerator lever 100 is operated to the rear side via the operation wire 105, which is an example of an operation system, to the speed control lever 104 of the engine 55. They are linked together.
[0059]
The operation wire 105 is linked to the threshing clutch lever 103 through the linkage mechanism 111 at the end of the inner wire 110 on the accelerator lever 100 side. The linkage mechanism 111 is a U-shaped support that is pivotably supported around the axis P19 on a support shaft 112 that supports the reaping clutch lever 102 and the threshing clutch lever 103 so as to be swingable around the left-right axis P19. The swing arm 113, the swing pin 113 is pivotally supported around the axis P <b> 20 facing left and right and the inner wire 110 is inserted, and the inner wire 110 has an end closer to the accelerator lever 100 than the link pin 114. The fixed member 115 fixed to the portion, the coil spring 116 externally fitted between the linkage pin 114 and the fixed member 115 in the inner wire 110, and the swing arm 113 to the threshing clutch lever 103 are integrally swung around the axis P19. It consists of bolts 117 with knobs that can be moved, and the engine speed is fixed. When the rotational speed is lower than the rotational speed, the engine 55 is operated at the rated speed from the set position a corresponding to the operation position of the accelerator lever 100 in conjunction with the operation of the threshing clutch lever 103 from the cut position to the enter position. The speed control lever 104 is switched from the rated position b to the set position by the action of the return spring 130 linked to the speed control lever 104 in conjunction with the operation from the entering position to the cutting position of the threshing clutch lever 103. Return to a.
[0060]
Thus, the threshing clutch lever 103 can be turned off when the harvesting and harvesting operation is started without performing the preparatory operation for operating the accelerator lever 100 to increase the engine speed to the rated revolution before starting the harvesting and harvesting operation. The engine speed can be automatically increased to the rated speed by the operation from the position to the entering position, and when the harvesting and harvesting operation is interrupted, the operation from the entering position to the cutting position of the threshing clutch lever 103 is performed. The engine speed can be automatically reduced from the rated speed to the speed corresponding to the operating position of the accelerator lever 100 by operating the accelerator lever 100 every time the harvesting / harvesting operation is interrupted. Compared to the case where the setting is changed, the operation can be saved.
[0061]
Further, when changing the setting of the engine speed by operating the accelerator lever 100, the tachometer required for checking the engine speed can be eliminated, so that the configuration is simplified accordingly. And reduction of manufacturing costs.
[0062]
As shown in FIGS. 18 and 20, the knob-attached bolt 117 is disposed outside the guide plate 118 for operating and guiding the threshing clutch lever 103, and the knob-attached bolt 117 is operated to operate the threshing clutch lever 103. The swing arm 113 can be easily attached and detached.
[0063]
That is, the knob-equipped bolt 117 can function as a release operation tool for releasing the linkage between the threshing clutch lever 103 and the operation wire 105, thereby causing the threshing device 7 to be driven at a low speed for cleaning and adjustment. , The threshing clutch lever 103 is released from the cut position by operating the bolt 117 with the knob to release the linkage between the threshing clutch lever 103 and the operation wire 105 and operating the accelerator lever 100 to the low speed side. By switching to the position, the threshing device 7 can be driven at a low speed.
[0064]
In the threshing clutch lever 103, the threshing clutch lever 103 is moved to the cutting clutch lever 102 so that the threshing clutch lever 103 is switched from the cutting position to the entering position in conjunction with the operation of the cutting clutch lever 102 from the cutting position to the entering position. A linkage arm 119 is provided as an interlocking mechanism for hitting and interlocking.
[0065]
According to this configuration, when starting the harvesting and harvesting operation, the threshing clutch lever 103 can be switched from the cutting position to the entering position only by operating the cutting clutch lever 102 from the cutting position to the entering position, and the speed control Since the lever 104 can be switched from the set position a to the rated position b, and the cutting and conveying unit 3 and the threshing device 7 can be operated simultaneously with the engine speed increased to the rated speed, Labor-saving of the operation required when starting the harvesting work can be achieved more effectively.
[0066]
On the other hand, even if the harvesting clutch lever 102 is operated from the entering position to the cutting position during the harvesting and harvesting operation, the threshing clutch lever 103 is located at the entering position and only the harvesting conveyance unit 3 is deactivated. A state in which there is a processed product during threshing processing or sorting processing, which occurs when the threshing clutch lever 103 is switched from the entering position to the cutting position in conjunction with the operation from the entering position to the cutting position. The threshing device 7 is deactivated, the waste straw cutting device 8 is deactivated in a state where there is a waste straw during the cutting process, or the bagging device 11 is deactivated in the state where there is a grain in the middle of bagging. Inconveniences such as doing can be avoided.
[0067]
Further, when operating the threshing clutch lever 103 from the entering position to the cutting position in order to stop the threshing device 7 or the waste straw cutting device 8, etc., when the reaping clutch lever 102 is located at the entering position, Since the cutting clutch lever 102 can be switched from the entering position to the cutting position together with the operation from the entering position to the cutting position of the threshing clutch lever 103, it is possible to prevent forgetting to operate the cutting clutch lever 102 to the cutting position. If the interlocking operation is intentionally performed, the reaping and conveying unit 3 and the threshing device 7 can be stopped simultaneously while reducing the engine speed to the set speed by the accelerator lever 100. Labor-saving of operations required to interrupt or end harvesting work can be achieved more effectively.
[0068]
Moreover, in the state where the cutting clutch lever 102 is in the cutting position, the cutting clutch lever 102 remains in the cutting position even if the threshing clutch lever 103 is operated, so that the threshing is performed without operating the cutting conveyance unit 3. Since the operating states of the device 7 and the waste straw cutting device 8 can be switched, the pillow handling operation for manually supplying the harvested cereal meal to the threshing device 7 can be performed without any trouble.
[0069]
3 is linked to the shift member 106 of the gear-type transmission mechanism 65 shown in FIG. 11 via an operating system (not shown), and the cutting clutch lever 102 shown in FIGS. 2, 3, and 20 is used. Is not shown in FIG. 4, FIG. 5, FIG. 10, and FIG. 11, which spans the first shaft 107 of the gear-type transmission mechanism 65 and the input shaft 108 of the cutting and conveying unit 3. The threshing clutch lever 103 shown in FIGS. 3 and 18 to 20 is linked to the second belt tension clutch 60 shown in FIG. 10 via an operating system not shown.
[0070]
As shown in FIGS. 2 and 3, at the right foot position in the boarding operation unit 6, the first belt tension clutch 57 (see FIG. 10) and the traveling brake 120 (see FIG. 11) built in the transmission case 59 are provided. An operation pedal 121 linked via an operation system (not shown) is provided. By depressing the operation pedal 121, the disengagement state of the first belt tension clutch 57 and the braking state of the traveling brake 120 appear. It is possible to stop the running of the aircraft.
[0071]
The operation pedal 121 is integrally provided with a locking arm 122 extending toward the front of the boarding operation unit 6, and this locking arm 122 is engaged with a locking member (not shown) installed in the boarding operation unit 6. As a result, the operation pedal 121 can be held at the depressed position where the disengaged state of the first belt tension clutch 57 and the braking state of the traveling brake 120 appear. That is, the traveling brake 120 can be made to function as a parking brake by the locking arm 122 and the locking member.
[0072]
[Another embodiment]
Hereinafter, other embodiments of the present invention will be listed.
(1) The waste straw cutting device 8 may be constituted by a disk-type cutter.
(2) A grain tank may be adopted as the grain storage unit 11.
[Brief description of the drawings]
[Fig. 1] Overall left side view of a combine
[Fig. 2] Right side view of the entire combine
FIG. 3 is an overall plan view of the combine.
FIG. 4 is a longitudinal side view showing a lifting operation structure of a cutting and conveying unit.
FIG. 5 is a rear view showing a lifting operation structure of a cutting and conveying unit.
FIG. 6 is a longitudinal front view showing a frame structure at the rear of the fuselage.
FIG. 7 is a longitudinal rear view showing the configuration of the threshing device.
FIG. 8 is a vertical side view of the waste straw cutting device showing a shredded release state.
FIG. 9 is a vertical side view of the waste straw cutting device showing a state where the long straw is released.
FIG. 10 is a developed sectional view showing a part of the transmission structure.
FIG. 11 is a longitudinal rear view of the mission case.
FIG. 12 is a developed cross-sectional view showing the configuration of the waste straw cutting device.
FIG. 13 is a cross-sectional plan view showing a support structure for a female screw member.
FIG. 14 is a longitudinal side view showing a support structure for a female screw member.
FIG. 15 is a rear view showing the configuration of the braking mechanism.
FIG. 16 is a rear view showing another configuration of the braking mechanism.
FIG. 17 (a) Longitudinal side view showing the linkage structure of the control lever
(B) Longitudinal front view showing linkage structure of control lever
FIG. 18 is a linkage diagram showing an engine speed control structure.
FIG. 19 is an enlarged view of the main part of the engine speed control structure.
FIG. 20 is a longitudinal rear view of the main part of the engine speed control structure.
[Explanation of symbols]
  2 traveling aircraft
  3 Cut and carry part
  6 Boarding operation
  7    Threshing device
  8    Waste blower cutting device (cylinder type cutter)
  11  Kernel storage
  27 Handling cylinder
  31 Oscillating sorting mechanism
  37 Dust outlet
  55  engine
  P2  Axis

Claims (3)

A cutting and conveying part and a boarding operation part are arranged in the left and right direction so that the boarding operation part is located on one side of the left and right in the front part of the traveling machine body. A threshing device provided with a handling cylinder that rotates around the axis of the orientation and a rocking sorting mechanism that sorts the processed material while transporting it in the left-right direction;
Behind the threshing device, the waste straw cutting device and the grain storage portion are disposed on the rear side of the body which is opposite to the boarding operation portion where the waste straw cutting device is disposed on the left and right sides of the front portion of the body. Located on the other side, the grain storage part is arranged so that it is located on the same left and right side as the boarding operation part at the rear of the fuselage,
The exhaust wall cutting device is constituted by a cylinder-type cutter that folds the left-right exhaust wall transported backward from the handling cylinder along the transport direction, and chops in order from the refracting end. The grain storage unit is constituted by a bagging device for bagging the grain sent out from the threshing device ,
A combine in which an engine is disposed in the boarding operation unit in a state of being symmetrically positioned with respect to the cylinder-type cutter.   A waste straw discharge state is a shredder release state in which the waste straw transported backward from the handling cylinder is supplied to the waste straw cutting device, and a long straw that is discharged without being supplied to the waste straw cutting device. The combine according to claim 1, wherein the combiner is configured to be switchable to a release state.   The combine according to claim 1 or 2, wherein a dust discharge port is formed on a lateral side surface of the threshing device on the boarding operation unit side.

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