JP4787658B2 - Self-removing combine - Google Patents

Description

  The present invention relates to a relatively small self-removing combine.

  The self-detaching combine has a driving part on one side of the front part of the traveling machine body and a cutting part that can swing up and down on the other side of the front part of the traveling machine body. It is configured by arranging a plurality of pulling-type pulling devices in parallel, and in a small model with two or three-row cutting specifications, the cutting width (left and right width of the entire left and right traveling device) is larger than the stepping cost of the traveling body (left and right overall width of the driving device). The spacing between the weeding tools at both ends is small.

  The cutting part with a small cutting width is shifted to the side near the end of the uncut area of the step margin on the side opposite to the driving section (the uncut area side of normal turning), or the uncut area side of the step margin The cutting device is arranged so as to protrude in the next step, and the traveling device is separated as much as possible from the uncut crop that will be harvested in the next process, so that the mud that rises to the side due to the sinking of the traveling device in the wet field approaches the stock of the uncut crop To avoid this, the cutting device should not enter the mud that has risen in the next step. However, if the mowing part with a small cutting width is placed on the uncut ground side with respect to the stepping margin, the stepping margin will protrude beyond the cutting width to the driving unit side, and the right and left sides will be uncut. In the work, the driving unit will step on the crop with the traveling device.

Therefore, as one means for solving such a problem, for example, as shown in Patent Document 1, a pulling device that is located on the driving unit side (the already cut ground side at the time of normal cutting) is arranged at its lower end. The width of horizontal movement in the section is made larger than the width of horizontal movement in the lower end of the other pulling device, and the cutting width of the cutting part is made close to the stepping allowance, enabling turning and middle cutting work It is considered.
JP 2003-47318 A

  According to the above configuration, an expected function can be expected, but the following problems occur due to the structure of the cutting part. In other words, in the mid-split operation, crops with a greater number of lines than the standard number of mowed lines in normal swivel work are introduced using the entire mow width, and are raised and mowed. The crops that are planted in the plant will be raised while being bent largely toward the middle of the cutting width, and the crops that are weak will be raised when they pass through the lower end of the device and bent greatly at the lower corner of the case. As a result, crops with low back tend to break, and there is a risk that good pulling may be hindered, or that the posture of transportation may be disturbed or clogged in subsequent cutting and transportation.

  The present invention has been made paying attention to such points, and is provided with a pulling structure capable of performing a swallowing operation and a mid-split operation, and in particular, even in a mid-split operation, The purpose is to avoid the breakage of crops, and to raise and smoothly carry out cutting and transportation.

In the first aspect of the invention, a driving unit is provided on one side of the front side of the traveling machine body, and a cutting unit is provided on the other side of the front side of the traveling machine body so as to be able to swing up and down. In a self-removing combine that has a rotating specification raising device arranged in parallel on the left and right ,
The lower end of the Pick device positioned OPERATION side of said pair of right and left Pick device, the first chain guide winding the Pick chain has been downwardly moved laterally moving path along the return route guidance and the member, the ink was second chain guide member for guiding Pick winding a path a chain of horizontal transfer pathways in parallel deployment, the lower end portion definitive horizontal turning movement width before SL was caused located driving unit side device , Set to be larger than the lateral movement width of the lower end portion in the other pulling device , enabling the raising of the two strips to be planted by the pulling device located on the operation unit side. It is possible to trigger the planted crop of one planting strip with the pulling device of
Said chain winding curvature radius of the second chain guide member, said chain winding curvature radius of the first chain guide member, and the other caused by the chain winding curvature radius of the chain guide member formed in the bottom end of the device Set larger ,
The outer peripheral edge of the corner portion where the second chain guide member of the pulling case of the pulling device located on the operating unit side is curved is curved along the outer peripheral portion of the second chain guide member. The outer peripheral edge of the corner portion in which the chain guide member of the pulling case of the other pulling device is formed is curved along the outer peripheral portion of the chain guide member of the other pulling device. The radius of curvature of the outer peripheral edge of the corner of the pulling case of the pulling device that is formed on the operating portion side is curved, and the radius of the corner of the pulling case of the other pulling device is The outer peripheral edge is set to be larger than the curvature radius .

Traveling According to the above construction, the horizontal turning movement width of the lower end of the Pick device located OPERATION section side and is set to be larger than the lateral turning movement width of the lower end portion of the other of the Pick apparatus, the swath It can be close to the tread of the aircraft.

In mid-split work, crops planted near the end of the cutting width on the side of the driving section are pulled up through the lower end of the device while being bent largely toward the center of the cutting width, but the chain is raised. By setting a large radius of curvature of the chain winding of the second chain guide member that guides the winding to the winding path, the lower end corner portion of the case that hides the second chain guide member is made a curved corner portion having a large curvature radius. The crops that pass through the corners are not forcibly bent, and even crops with low backs are smoothly raised without being bent and guided to the path.

Therefore, according to the first aspect of the present invention, it is provided with a pulling structure capable of performing the swivel cutting work and the middle splitting work, but avoids the breakage of the crop due to the pulling in the middle splitting work in particular and smoothly. It can be raised and cut and conveyed.
According to a second invention, in the first invention,
A curved edge that curves an outer peripheral edge of a corner portion where the first chain guide member of the pulling case of the pulling device located on the operation unit side is located along an outer peripheral portion of the first chain guide member Formed into
The radius of curvature at which the outer peripheral edge of the corner where the first chain guide member of the raising case is located inside the raising case in the raising device located on the operation unit side is curved, and the second chain guide member is located inside. The radius of curvature at which the outer peripheral edge of the corner is curved is set smaller.

According to a third invention, in the first or second invention,
Said chain winding curvature radius of the first chain guide member, in which is set smaller than the chain winding curvature radius of the chain guide member formed in the bottom end of the other Pick device.

According to the said structure, the curvature radius of the tip rotation locus | trajectory of the raising nail which is guided and guided by the 1st chain guide member becomes small, and the scraping leak of a crop can be decreased.

According to a fourth invention, in any one of the first to third inventions,
The first chain guide member is a fixed guide rail.

  According to the above configuration, the guide rail can be arbitrarily curved in addition to the circular arc shape, and it is easy to make the tip turning trajectory of the claw to an arbitrary shape with little crop scraping and leakage. A linear guide rail portion connected to the second chain guide member can be integrally formed with the first chain guide member made of the guide rail, and the chain and pawl guide structure in the wide lateral movement path can be configured with fewer parts. It becomes.

  1 and 2 show the entire side surface and the entire plane of the self-decomposing combine according to the present invention, respectively. In this self-removable combine, a cutting unit 3 having a two-row cutting specification is connected to a front left side of a traveling machine body 2 having a pair of left and right crawler traveling devices 1 so as to be swingable and movable up and down. The driving unit 4 is provided on the right side of the front part, and the threshing device 5 and the grain recovery tank 6 are mounted on the traveling machine body 2.

The mowing unit 3 includes a pair of left and right pulling devices 7L and 7R for raising the planted crop to a predetermined cutting posture, a clipper type mowing device 8 for cutting the raised planted crop, and the width of the crop being raised. A pair of left and right auxiliary conveying devices 9L and 9R that lock and convey obliquely rearward toward the center, a pair of left and right scraping rotary packers 10L and 10R that stir and merge crop stocks, and the merged harvested crops upward and backward The feeding / carrying device 11 that sandwiches and conveys the chopping portion is provided, and the entire cutting unit 3 is swung up and down by a hydraulic cylinder 12 around a fulcrum p above the rear part.

  The supply and transport device 11 is composed of a stock holding and transporting mechanism 11a that clamps and transports the crop stock side, and a tip locking transport mechanism 11b that locks and transports the crop head side. By adjusting the supply and transport device 11 as a whole up and down around the fulcrum p, the holding position of the transported crop is changed, and the crop delivery position to the feed chain 13 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.

  FIG. 5 shows an outline of the transmission structure. An engine 14 is disposed below the seat in the driving unit 4, and a part of the output from the engine 14 is transmitted to the transmission case 16 via a hydrostatic continuously variable transmission (HST) 15, The crawler traveling device 1 is driven forward and backward at a continuously variable speed, and part of the engine power is branched and transmitted to the threshing device 5. The transmission case 16 is provided with a PTO shaft 17, and the forward rotation power of the working power extracted from the PTO shaft 17 is transmitted to the counter shaft 18 that is horizontally mounted along the fulcrum p of the cutting part 3. Has been.

  A forward transmission shaft 19 linked to the counter shaft 18 with a bevel gear extends from the base of the cutting portion 3 toward the upper front, and a part of the power transmitted from the extended end to the first vertical transmission shaft 20. Is transmitted to the raising drive shaft 21 of the raising device 7R on the right side of the machine body. The lower part of the first vertical transmission shaft 20 is bevel geared to the inner shaft 22 and the outer cylinder shaft 23 that are arranged vertically, and the outer cylinder shaft 23 causes the auxiliary conveyance device 9R on the right side of the machine body and the right side of the machine body to be scraped. The rotary packer 10R is driven. The scraping rotary packer 10L on the left side of the fuselage is meshed with the scraping rotary packer 10R on the right side of the fuselage, and the auxiliary conveying device 9L on the left side of the fuselage is driven by the power transmitted to the scraping rotary packer 10L on the left side of the fuselage. It has become so.

  The lower part of the inner shaft 22 is interlocked with the crank mechanism 24, and the cutting blade 8a of the cutting device 8 is driven to reciprocate left and right by a crank mechanism 23 with a constant stroke. The lower end of the inner shaft 22 is interlocked and connected to a lateral transmission shaft 25 that is installed horizontally at the rear portion of the cutting device 8, and the second longitudinal transmission shaft 26 is linked to the left end portion of the lateral transmission shaft 25 with a bevel gear. The pulling drive shaft 27 of the pulling device 7L on the left side of the machine body is driven by the power transmitted to the second vertical transmission shaft 26.

  The supply / conveyance device 11 is interlocked with a bevel gear at the left end portion of the counter shaft 18 so that power can be transmitted around the fulcrum p so as to be swingable up and down.

  As shown in FIG. 6, the raising device 7 </ b> R on the right side of the fuselage (operating unit 4 side) is arranged on the side of the drive sprocket 31 that is arranged on the upper part of the raising case 30 and connected to the raising drive shaft 21. A tension sprocket 32 that can be displaced vertically and is spring-biased upward, a first chain guide roller (first chain guide member) 33 and a second chain guide roller (first 2 chain guide member) 34, and the chain 35 is wound around and stretched in a horizontal direction. The chain 35 is raised and pivoted at an equal pitch so that the claw 36 can swing up and down. It is connected.

  In the return path where the chain 35 is raised and moved downward, the raising claw 36 is raised and moved downward in a lying posture along the chain 35, and is guided by the outer periphery of the first chain guide roller 33 and rises to the lateral movement path. It is configured to move around and to move laterally in a state where the standing posture is maintained by the guide rail 37 fixedly arranged. The pulling claw 36 that has laterally moved along the lateral movement path in the standing posture is guided to the outer periphery of the second chain guide roller 34 and is guided to the guiding path while maintaining the standing posture, and is raised and fixed to the side of the path. The raised claw 36 moves upward in a state where it is erected and guided by the deployed guide rail 38 and falls off the upper end of the guide rail 38 so as to fall down and go around the return path.

  The raising device 7L on the left side of the machine body is arranged on the upper side of the raising case 40 and is connected to the raising drive shaft 27. The driving sprocket 41 can be displaced vertically and is spring-biased upward. The tension sprocket 42 and the raising case 40 are arranged below the raising case 40 and raised over the chain guide roller 44 so that the chain 45 is wound around the chain 45. The raising chain 45 has a raised claw. 46 is pivotally connected at an equal pitch so as to swing up and down.

  The raising claw 46 that has been raised and moved downward in a lying posture along the chain 45 is guided by the outer periphery of the chain guide roller 44 and raised while moving up to the path, and is fixedly arranged on the side of the path. It is configured to move upward in a state of being guided upright by the guide rail 48.

  The pulling paths of the pulling devices 7R and 7L are arranged so as to face each other and are adjacent to each other, and the pulling chains 35 and 45 are driven to rotate at the same speed, so that the pulling devices 7R and 7L The raising claws 36 and 46 are raised and moved upward while maintaining abutment with each other in the path so that the crops are raised without escape.

The winding circumferential length of the raising chain 35 in the raising device 7R on the right side of the machine body is an integer of the nail pitch of the raising claws 36 and 46, rather than the winding circumferential length of the raising chain 45 in the raising device 7L on the left side of the machine body. It's twice as long. In this example, the axial center position of the drive sprocket 31 located at the upper end of the winding path of the raising chain 35 in the raising device 7R on the right side of the machine body is the upper end of the winding path of the raising chain 45 in the raising device 7L on the left side of the machine body. By setting it higher than the axial center position of the drive sprocket 41 located at, the long circumferential pulling chain 35 and the short circumferential pulling chain 45 are raised and driven synchronously with the pawls 36 and 46 in contact with each other. It is set as follows. The raising cases 30 and 40 of both the raising devices 7R and 7L are configured to have the same height and are bridge-connected by an arch-shaped reinforcing stay 49.

  In the raising device 7R on the right side of the machine body, the lateral movement width a of the lower end portion is set to be larger than the lateral movement width b of the lower end portion of the raising device 7L on the left side of the machine body. w, that is, the distance between the leading ends of the weeding tools 50 arranged at the front ends of the two pulling devices 7R and 7L is set as close as possible to the step allowance H of the left and right crawler traveling device 1, as shown in FIG. As shown in FIG. 7 (b), the two pulling devices 7R and 7L are used to raise one by one in the normal lifting operation, and as shown in FIG. Invoke Article 3.

The first chain guide roller 33 is configured to a smaller diameter than the second chain guide roller 34, the chain winding curvature of the first chain guide roller 33 radius, smaller than the chain winding curvature radius of the second chain guide roller 34 ing. As a result, the radius of curvature of the tip turning trajectory of the raising claw 36 that is guided to the first chain guide roller 33 to turn up and down becomes small, and it is possible to reduce crop scraping and leakage.

  By configuring the second chain guide roller 34 in the pulling device 7R on the right side of the machine body to have a large diameter, a crop located near the right end of the cutting width w is raised during the mid-split operation and passes through the lower end of the device 7R to cause the path. When being guided to, the crop is prevented from being folded tightly by the corner on the raising path side at the lower end of the raising device 7R.

Of the first chain guide roller 33, the second chain guide roller 34, and the chain guide roller 44 of the left pulling device 7L, the second chain guide roller 34 has the largest diameter, and the second chain guide roller 44 is the second largest. One chain guide roller 33 has the smallest diameter. Thus, by setting the chain winding radius of curvature by the first chain guide roller 33 to be smaller than the chain winding radius of curvature of the second chain guide roller 34, the first chain guide roller 33 is guided to the first chain guide roller 33 to rotate upright. The radius of curvature of the leading rotation trajectory of the raising claw 36 is reduced, and crop scraping and leakage can be reduced.

By configuring the second chain guide roller 34 in the pulling device 7R on the right side of the machine body to have a large diameter, the corner portion of the pulling case 30 covering the second chain guide roller 34 is configured as a curved corner portion having a large curvature radius. A case on the side of the raising path at the lower end of the raising device 7R when a crop located near the right end of the cutting width w is pulled up through the lower end of the device 7R and is guided to the path during the middle splitting work. The corners avoid the crops being folded tightly.

  As shown in the front view of FIG. 8, the auxiliary conveyance device 9R on the right side of the machine body is arranged at a position higher than the auxiliary conveyance device 9L on the left side of the machine body. When the auxiliary conveying device 9R is engaged and conveyed to the middle side of the cutting width, the crop is not bent excessively.

  A control tower 51 is provided at the front end of the operation unit 4, and a control lever 52 is erected on the right side of the control tower 51. The control lever 52 is configured to be capable of a cross operation, and by swinging left or right from the neutral position, a speed difference is given to the left and right crawler travel devices 1 to operate the traveling vehicle body 2 in the lever operation direction. Is configured to face. The control lever 52 also serves as a mowing part raising / lowering lever. The maneuvering lever 52 is operated so as to raise the mowing part 3 by swinging backward from the neutral position and to move the mowing part 3 downward by swinging operation forward. A lever 52 and a control valve (not shown) that controls the operation of the hydraulic cylinder 12 are linked.

  As shown in FIGS. 3, 4, 9, and 10, the left half of the front surface of the control tower 51 is recessed and retracted, and this recessed portion s is located on the right side of the fuselage when the cutting unit 4 is lifted. It is an ascending movement space where the right end side portion of the auxiliary conveyance device 9R enters. According to this, in order to avoid the auxiliary conveyance device 9R on the right side of the aircraft from interfering with the control tower 51 when the cutting unit 4 is raised, the pulling devices 7R and 7L and the auxiliary conveyance devices 9R and 9L are moved forward. Therefore, it is not necessary to deploy, and it is possible to suppress an increase in the longitudinal length of the cutting unit 4.

[Other Examples]
(1) As shown in FIG. 11, the first chain guide member 33 may be constituted by a guide rail fixedly arranged. In this case, the first chain guide member 33 guides the elevating chain 35 that has been moved downward along the return path to guide the winding chain 35 to the lateral movement path, and the elevating claw 36 to the standing posture. By integrally forming the guide rail portion 33b guided to the second chain guide roller 34, the dedicated guide rail 37 in the above embodiment can be omitted.

  (2) The second chain guide member 34 may be configured by a guide rail that is fixedly arranged. In this case, the first chain guide member 33 and the second chain guide member 34 can be configured in series.

Overall side view of self-removing combine Overall plan view of self-removing combine Front view of mowing unit Top view of the cutting part Schematic diagram of transmission structure Front view of pulling device Schematic plan view showing the swivel cutting operation mode (A) and the intermediate cutting mode (B) Front view showing the auxiliary transport device Side view of the lowered cutting part Side view of raised reaper Front view showing another embodiment of the pulling device

2 traveling machine body 3 mowing part 4 operation part 7R pulling device 7L pulling device
30 Pull-up case 33 First chain guide member (first chain guide roller)
34 Second chain guide member (second chain guide roller)
35 Pulling chain
40 Pull-up case 44 Chain guide member (chain guide roller)
a Horizontal movement width b Horizontal rotation movement width

Claims (4)

A driving unit is provided on one side of the front part of the traveling machine body, and a cutting part is provided on the other side of the front part of the traveling machine body so as to be able to swing up and down. In the self-removing combine that arranges the left and right in parallel,
The lower end of the Pick device positioned OPERATION side of said pair of right and left Pick device, the first chain guide winding the Pick chain has been downwardly moved laterally moving path along the return route guidance and the member, this ink was second chain guide member for guiding Pick winding a path a chain of horizontal transfer pathways in parallel deployment, the lower end portion definitive horizontal turning movement width before SL was caused located driving unit side device , Set to be larger than the lateral movement width of the lower end portion in the other pulling device , enabling the raising of the two strips to be planted by the pulling device located on the operation unit side. It is possible to trigger the planted crop of one planting strip with the pulling device of
Said chain winding curvature radius of the second chain guide member, said chain winding curvature radius of the first chain guide member, and the other caused by the chain winding curvature radius of the chain guide member formed in the bottom end of the device Set larger ,
The outer peripheral edge of the corner portion where the second chain guide member of the pulling case of the pulling device located on the operating unit side is curved is curved along the outer peripheral portion of the second chain guide member. The outer peripheral edge of the corner portion in which the chain guide member of the pulling case of the other pulling device is formed is curved along the outer peripheral portion of the chain guide member of the other pulling device. The radius of curvature of the outer peripheral edge of the corner of the pulling case of the pulling device that is formed on the operating portion side is curved, and the radius of the corner of the pulling case of the other pulling device is A self-removing combine, wherein the outer peripheral edge is set to be larger than the curvature radius . A curved edge that curves an outer peripheral edge of a corner portion where the first chain guide member of the pulling case of the pulling device located on the operation unit side is located along an outer peripheral portion of the first chain guide member Formed into
The radius of curvature at which the outer peripheral edge of the corner where the first chain guide member of the raising case is located inside the raising case in the raising device located on the operation unit side is curved, and the second chain guide member is located inside. The self-removable combine according to claim 1, wherein the outer peripheral edge of the corner portion is set to be smaller than the curvature radius of curvature . The chain winding radius of curvature of the first chain guide member is set to be smaller than the chain winding radius of curvature of the chain guide member provided at the lower end of the other pulling device. Demold combine. The self-removable combine according to any one of claims 1 to 3, wherein the combiner is constituted by a guide rail to which the first chain guide member is fixed .

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