JP2000312523A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester having improved delivery performance of a culm feeding and transporting apparatus placed between a reap pretreating apparatus and a threshing apparatus to prevent the spillage of culm and the disturbance of stem in delivery and transportation. SOLUTION: An auxiliary transporting apparatus is placed between a culm transportation controlling apparatus of a reaping apparatus, a root-side delivering and transporting apparatus and a main transporting apparatus provided with a feed chain to feed and transport culm to a thresher at a constant speed. The vertical moving range of the chain of the (outer) auxiliary transporting apparatus is set to constantly position the tip end of the chain of the vertically swinging (outer) auxiliary transporting apparatus below a line connecting the ear tip transporting lug of a threshing depth adjusting apparatus to the tip end of the chain of the root-side delivering and transporting apparatus. Since the culm is transported on the chain below a line connecting the ear tip transporting lug and the chain of the feeding and transporting apparatus, it is constantly transported in a state bent to V-shape and firmly pressed against the chain of the feeding and transporting apparatus and, accordingly, it is surely transported with the chain while preventing the spillage of culm at the chain part of the feeding and transporting apparatus and in the delivery with the chain.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an agricultural combine for harvesting cereals in a field.

2. Description of the Related Art As shown in FIG. 24, a combine 1 is provided with a traveling device 2b having a pair of left and right traveling crawlers traveling on a soil surface below a body frame 2a. Weeds 5, raising case 6, cutting blade 9 for cutting planted grain culm, stock side transport device for nipping and transporting grain culm cut by said cutting blade 9, front end transport device 1
1, a pre-cutting treatment device 4 including a handling depth adjusting device, a stock transfer side transfer device, and the like. Airframe 2a
A threshing device 3 is mounted on the upper part of the threshing device. The threshing device 3 is provided with a grain culm supply and transport device 18 having a feed chain 28 for taking over and transporting the grain culm transported from the pre-cutting device 4. Can be A grain tank 2c for temporarily storing the grains selected by threshing by the threshing device 3 is further mounted on the body frame 2.

The threshing device 3 has a rotating handling cylinder, threshes grains from the grain culm supplied and conveyed by the feed chain 28 by the handling teeth of the handling cylinder, separates branch stalks, dust, etc., and lowers the handling cylinder. The kernels are sorted by the action of rocking shelves, Karino blowers, sheaves, etc., and the selected kernels are stored in the Glen tank 2c.
To be stored temporarily.

A discharge auger 2d composed of a vertical auger and a horizontal auger is provided at the rear of the Glen tank 2c so that the grains temporarily stored in the Glen tank 2c can be discharged to the outside of the combine 1. Running of combine 1,
An operator riding on the driver's seat 2e on the body frame 2a of the combine 1 performs harvesting, threshing, grain discharging operation, and the like by operating the operating device of the driver's seat 2e.

[0004]

The height of a cereal stem planted in a field, that is, the length of the cereal stem varies depending on the cultivar, growth condition, and the like. Therefore, the operator sets the pre-cutting device 4
, The length of the cereal stem supplied and conveyed to the threshing device 3 also changes. In addition, the combine 1 not only cuts the culm of a flat field at a certain height, but also cuts off a headland such as a ridge so that the weeding tool 5 does not collide with a headland such as a ridge. The pre-processing device 4 is raised to perform so-called high mowing. The length of the high-cut culm is shorter than that of a normal cut culm.

[0005] In order to thresh and harvest grains from harvested grain stalks at a high recovery rate, it is necessary to supply and transport the grain stalks to an appropriate position with respect to the handling drum of the threshing device 3. ,
For this reason, the pre-cutting device 4 is provided with a handling depth adjusting device. The handling depth adjustment device adjusts and moves the length of the grain culm in the longitudinal direction while the harvested grain culm is being conveyed in the pre-cutting device 4. It is gripped at an appropriate position and supplied and transported to the threshing device 3, so that optimal threshing with little unhandled material is performed.

[0006] In order to improve the threshing efficiency, in addition to supplying the grain culm grasped at an appropriate position as described above, when the grain culm is transferred from the pre-cutting device 4 to the threshing device 3, the culm is transferred. It is also necessary to prevent so-called stalk spilling in which grain stems fall due to failure. The stalk spills not only cause loss of harvested grains, but also cause clogging of the pre-cutting device 4, the supply / transportation device, the threshing device 3, etc. due to the spilled grain culms, and also cause a failure of the combine 1. In addition, strain disturbance that does not lead to spilling of the culm during the supply of grain culm also causes a change in the grasping position of the grain culm of the feeder chain 28 due to the disorder of the strain and causes a decrease in threshing efficiency. It is necessary to carry out supply transport without any problems.

SUMMARY OF THE INVENTION An object of the present invention is to improve the transfer performance of a grain culm supply and transfer device provided between a pre-cutting device and a threshing device, prevent spilling of culms, and eliminate disturbance of stocks during transfer and transfer. It is to provide.

[0008]

SUMMARY OF THE INVENTION The object of the present invention is to provide a harvesting device with a handling depth adjusting device for transporting cereals and a stock-side transfer device (adjustment device 17, stock-side transfer device 19).
And feeding means for feeding and feeding the grain stalk to the threshing device at a constant speed (main feeding and feeding device 25 provided with feed chain 28)
Auxiliary transport means (auxiliary transport device 26) for changing the speed in synchronism with the vehicle speed is provided, and a handling depth adjusting device (head-side transporting device 11a of the handling depth adjusting device 17) and a stock-side takeover transporting device are provided. The vertical movement range of the auxiliary transfer device such that the tip of the auxiliary transfer device (the chain 38 of the auxiliary transfer device (outside) 33) that swings up and down is always lower than the straight line connecting the (chain end of the stock transfer side transfer device 19). Can be solved by combining

[0009] With the above configuration, the grain culm is transferred to the tip-side transport device 1.
Since the culm is conveyed on the chain 38 of the auxiliary conveyance device (outside) 33 below a straight line connecting the chain 1a and the chain of the stock transfer side conveyance device 19, the grain stalk is always bent in the shape of a "ku" and conveyed. You. This means that the cereal stem is firmly pressed against the chain of the stock transfer side transfer device 19, and the transfer by the chain is assured. As a result, grain stalks do not spill when taking over at the chain portion of the stock-side transfer device 19 and the chain portion of the auxiliary transfer device (outside) 33.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing a conveying means and a flow of grain culm in a pre-cutting device, a grain culm supply / conveying device, and a threshing device according to an embodiment of the present invention.
FIG. 3 is a side view of the pre-cutting device, FIG. 3 is a plan view of the pre-cutting device, FIG. 4 is a side view of the pre-cutting device and a grain culm supply / transport device, and FIG. FIG. 6 is a schematic plan view of an unfolded state, FIG. 6 is a schematic plan view of an unfolded state of the arrangement of a tip-side transfer device, a stock-side transfer device, and an auxiliary transfer device. FIG. Transport device,
FIG. 8 is a schematic rear view of the deployed state of the auxiliary transport device (outside), FIG. 8 is a partial cross-sectional schematic plan view of the deployed status of the auxiliary transport device and the gear box, and FIG. FIG. 10 is a front view, FIG. 10 is a side view of a pre-cutting treatment device and an auxiliary transport device, and FIG. 11 is a partial cross-sectional schematic plan view near the auxiliary transport device.

The embodiment of the present invention is an improvement of the conventional example, and the same parts as those of the conventional example in the drawings are denoted by the same reference numerals. The combine 1 has a traveling device 2b disposed below the body frame 2a, a threshing device 3 provided above the traveling device 2b, a pre-cutting device 4 provided at a position in front of the threshing device 3, and a pre-cutting device. Weeding tool 5 at the forefront of 4
The culms that were planted were raised in the raising case 6, raked into the pre-cutting device 4 with the star wheel 7 and the rake device 8, and the cutting blade 9 was used to cut the vicinity of the root of the cereal culm and cut the cereal. The culm is a stock side transport device 10, and a tip side transport device 11, 11a.
To transport the inside of the pre-cutting device 4.

The pre-cutting device 3 is mounted on a cutting frame 12, the cutting frame 12 is mounted on the tip of a vertical support frame 13, and a horizontal transmission cylinder 14 is provided at the base of the vertical support frame 13. Is rotatably mounted on a support base 15 provided on the body frame 2a side. Therefore, the mowing pre-processing device 4 is moved up and down by the mowing vertical cylinder 16 around the horizontal transmission cylinder 14 (FIGS. 2 to 4).

The starting end of the handling depth adjusting device 17 faces the end of the conveying path conveyed by each of the conveying devices, and the ending portion of the handling depth adjusting device 17 supplies grain culms to the threshing device 3. Stock transfer side transfer device 1 to be transferred to grain culm supply transfer device 18
9, the handling depth adjusting device 17 changes the position where the grain culm is transferred to the stock side transfer device 19 in the direction of the culm of the grain culm, and enters the threshing room of the threshing device 3. Adjust the handling depth when supplying. The handling depth is adjusted by a handling depth adjusting actuator M1, and the handling depth adjusting actuator M1 is provided with a potentiometer 17a for detecting a handling depth position. Further, the potentiometer 17a may be provided on a mounting portion of the handling depth adjusting device 17 (FIG. 2).

Further, not only the handling depth is adjusted by the handling depth adjusting device 17, but also the stock side transfer device 19 is configured such that the guide roller 23 of the transfer chain is connected to the grain stalk supply transfer device. By moving to the side away from the culm direction with respect to 18 (in the direction of arrow A in FIG. 6), the handling depth can be adjusted and supplied to the threshing device 3 in cooperation with the handling depth adjusting device 17. . The movement of the stock transfer side transfer device 19 is adjusted by a transfer transfer actuator M2 (FIG. 3).

The grain culm supply / conveyance device 18 includes a main supply / conveyance device 25 located at a side portion of the threshing device 3, a start end of the main supply / conveyance device 25, and an end side of the stock base side transfer / conveyance device 19. And the auxiliary transport device 26 provided between the two. In this case, the main supply / conveyance device 25 is configured to pinch and convey the grain stem by a so-called pinching rod 27 and a feed chain 28, and the pinching rod 27 is provided on an upper cover 29 of the threshing device 3, and an upper cover With the upward rotation of 29, it retracts from the feed chain 28. The feed chain 28 is wound around a front passive wheel 31 and a rear passive wheel 32 provided before and after a chain guide rail 30 in the front-rear direction (FIG. 4).

The auxiliary transfer device 26 further faces the vicinity of the terminal end of the stock-side transfer device 19 and is located on the same straight line as the main supply transfer device 25 in a plan view and in front of the main supply transfer device 25. The auxiliary transport device (outside) 33 located is parallel to the main supply transport device 25 but not on the same straight line,
Further, an auxiliary transport device (inner) 34 is provided which overlaps and faces the terminal side of the auxiliary transport device (outer) 33 and the start end portion of the main supply transport device 25 (FIGS. 4 to 6). .

The auxiliary transport device 26 is configured to have the same transport speed as the stock-side transfer transport device 19 and to change the speed in synchronization with the traveling speed. That is, the rotation transmitted to the pre-cutting device 4 is synchronized (synchronized) with the change in the traveling speed by the traveling device 2b, and the stock transfer side transport device 1
9 is also synchronized (synchronized) with the rotation transmitted to the pre-cutting device 4, and as a result, the grain conveying speed of the pre-cutting device 4, the stock-side transfer device 19, and the auxiliary conveying device 26 becomes substantially the same.

The auxiliary transfer device (outer) 33 is provided with a front gear (outer) 36 on the front side of the guide rail (outer) 35 and a rear gear (outer) 37 on the rear side of the guide rail (outer) 35. ,
A chain (outer) 38 is wound around a front gear (outer) 36 and a rear gear (outer) 37. The rear gear (outer)
A front gear (inner) 40 of the auxiliary transport device (inner) 34 is fixed to an inner portion of the mounting shaft 39 of the 37, and a rear gear provided behind the front gear (inner) 40 and the front gear (inner) 40. A chain (inner) 42 is wound around a gear (inner) 41 to constitute the auxiliary transport device (inner) 34 (FIGS. 4, 5, and 8).

The auxiliary transport device (outer) 33 is formed long, the auxiliary transport device (inner) 34 is formed shorter, and the auxiliary transport device (inner) 34 is positioned inside the auxiliary transport device (outer) 33, The device (outside) 33 is linearly arranged in front of the main supply / conveyance device 25. In addition, the auxiliary transport device (inside) 34
And the starting end of the main supply / conveyance device 25 are substantially overlapped in a side view.

As shown in FIG. 7, the end of the tip-side transfer device 11 is connected to the stock-side transfer device 19.
The operation end area of the end portion of the transfer lug 43 of the tip side transfer device 11a that substantially overlaps with the end portion of the tip, the position 23 of the guide roller of the stock side transfer device 19, and the auxiliary transfer device (outside) 33 The position of the front gear (outer) 36 is arranged so as to be movable up and down so as to come to the position indicated by the solid line in FIG. 7 for the short culm and to the position indicated by the dotted line for the long culm.

As described above, the grain culm supply / conveyance device 18 is divided into two parts by the main supply / conveyance device 25 and the auxiliary conveyance device 26 (FIG. 4).
5 is provided on one of the front and rear sides of a rotating shaft 44 (FIG. 5).
Is provided so as to be rotatable about a rotation axis so that the side portion of the threshing device 3 can be opened.

The rotation (working speed) of the pre-cutting device 4 is changed in synchronization with the traveling speed of the combine 1, and the stock-side transfer device 19 is also changed in accordance with this.
In accordance with this, the auxiliary transport device 26 is also configured to be shifted, so that the auxiliary transport device 26 is left on the machine body side and the main supply transport device 25 is moved so that the side of the threshing device 3 is opened. The threshing device 3 is configured to be easily opened to the side. At this time, as shown in FIG. 11, the end (rear side) of the chain guide rail 30 (conveyance supply chain 28) is configured to be turned to the side.

As shown in FIGS. 5 and 8, a rotation shaft 48 of the rear gear (inner) 41 is mounted on a gear box 50, and the rotation shaft 48 is an output shaft of the gear box 50. A reduction gear group 51 is provided in the gear box 50, and the input gear 53 of the input shaft 52 meshes with the gear group 51. An input pulley 54 is provided on an input shaft 52 protruding from the gear box 50. The input pulley 54 is the horizontal transmission cylinder 1
4 is driven by a belt 56 wound around an output pulley 55.

The output pulley 55 is provided coaxially with a cutting section input pulley 57 provided at one end of the horizontal transmission cylinder 14.
The rotation transmitted to the reaper input pulley 57 in synchronization with the traveling speed is output by the output pulley 55 to the auxiliary transport device (outer) 3.
3 and the auxiliary transfer device (inner) 34. The gear box 50 is fixed to an upper part of a mounting member 58 shown in FIG. 4, and the lower part of the mounting member 58 is fixed to the support base 15.

As shown in FIG. 8, a base of a cylindrical member 60 is mounted on the upper part of the gear box 50 in a cantilever state, and the rotary shaft 48 is mounted on the cylindrical member 60. The gear 61 in the portion inside the gear box 50 is formed with a small diameter,
The height of the gear box 50 is reduced, and as shown in FIG. 9, the gear box 50 is positioned below an inlet funnel (guide) 62 for guiding the cereal culm to the cereal culm supply port 63 of the threshing device 3. As shown in FIG. 8, a boss 64 is fitted around the outer periphery of the tubular member 60, and a breather hole 65 is provided at a portion where the boss 64 and the tubular member 60 overlap. It leaks out from 65 and oozes between the boss 64 and the cylindrical member 60.

As shown in FIGS. 9 and 11, the input pulley 54 of the gear box 50 is located below the cylindrical member 60, and the input pulley 54, the output pulley 55 at the left end of the Are disposed in a space between the gear box 50 and the auxiliary transfer device 26 in plan view.

As shown in FIG. 8, a base of a turning arm 66 is fixed to the boss 64, and a vertical rod 67 is attached to the turning arm 66.
Is mounted so that it can be adjusted in the longitudinal direction by loosening the bolt 68. The mounting shaft 39 is fixed to an intermediate portion of the vertical rod 67, and the rear gear (outer) 37 and the front gear (inner) 40 of the auxiliary transfer device (inner) 34 are rotated by the mounting shaft 39 via a bearing 39a. Only attach freely.

Further, the inner end of the horizontal rod 69 is fixed to the distal end of the vertical rod 67, and the outer end of the horizontal rod 69 is fixed to the mounting body 70. The guide rail (outside) 35 is mounted so as to be movable in the length direction by loosening the bolt 71. Vertical rod 6 with respect to rotating arm 66
7 is a tension mechanism by moving the guide rails (outside) 35 with respect to the mounting body 70, respectively.

The upper end of a rod 72 is attached to the horizontal rod 69, and the lower end of the rod 72 is connected to the arm 7 of the actuator 73.
Axle 4 The actuator 73 rotates the arm 74 to move the rod 72 up and down, moves the horizontal bar 69 up and down by moving the rod 72 up and down, and rotates the rotating arm 66 around the boss 64 by moving the horizontal bar 69 up and down, The height of the front gear (outside) 36 of the transfer device (outside) 33 is adjusted up and down. Therefore, the actuator 73 receives the load of the rotating arm 66 when not operating (FIGS. 8 and 1).
0).

In the combine having the above structure, the combine 1 is moved forward by the traveling device 2b and is sown by the weeding device 5, and the culm stalked by the weeding device 5 is raised by the raising case 6, and the star is raised. It is scraped backward by the foil 7 and cut by the cutting blade 9, and the cut cereal culm is conveyed by the stock side conveying device 10 and the tip side conveying device 11,
The transported grain culm is pinched and transported by the handling depth adjusting device 17 and is taken over by the stock-side transfer carrier device 19, and the stock-side transfer carrier device 19 transfers the grain culm to the grain culm supply / transport device 18.

In this case, since the end portion of the handling depth adjusting device 17 can be adjusted in the direction toward the culm of the grain culm with respect to the starting end of the stock-side transfer device 19, a stock-side sensor (not shown) By controlling the terminal position of the handling depth adjusting device 17 by a signal from the tip side sensor or the like, the clamping position of the grain culm is changed, and the handling depth of the grain culm supplied to the handling room of the threshing device 3 is substantially reduced. Adjust to be constant.

The cereal culm supply / conveyance device 18 includes a main supply / conveyance device 25 located at a side portion of the threshing device 3, a starting end of the main supply / conveyance device 25, and the stock-side transfer / conveyance device 1.
9 and an auxiliary transport device 26 provided between the feeder 9 and the terminal side. The auxiliary transfer device (outside) 33 positioned in front of the main supply transfer device 25 in the same straight line as the transfer device 25 and the auxiliary transfer device (inside) facing the side of the starting end of the main supply transfer device 25 and overlapping in side view. ) 34, and the auxiliary transport device 26 is configured to have the same transport speed as that of the stock transfer side transport device 19 and to change the speed in synchronization with the traveling speed of the combine 1.

Therefore, first, the roots of the cereal stems smoothly transported by the stock-side transfer device 19 in synchronization with the traveling speed of the combine 1 are continuously supplied only to the auxiliary transport device (outside) 33 having the same transport speed. In the state where the stock is nipped and transported to the auxiliary transport device (outside) 33, the tip side is slightly succeeded to the auxiliary transport device (inside) 34 at the same transport speed. Thus, the stock transfer side transfer device 19
Even when the conveying posture of the cereal stems sent from the apparatus changes, the cereal culm is reliably conveyed by the auxiliary conveying device (outside) 33 and the auxiliary conveying device (inside) 34 of the auxiliary conveying device 26. In particular, since the auxiliary transfer device (outside) 33 of the auxiliary transfer device 26 is provided in front of the main supply transfer device 25, the transfer from the stock source transfer device 19 is improved.

As described above, the transfer speeds of the stock transfer side transfer device 19 and the auxiliary transfer device 26 are almost equal to each other in synchronization with the traveling speed of the reaper 3, that is, the combine 1. Synchronized with the operating speed of the threshing device 3, the threshing device 3 is independent of the running speed,
Since the operation is always performed at a substantially constant speed that is optimal for threshing, the transfer speed of the stock-side transfer device 19 and the transfer speed of the main supply transfer device 25 may not be equal.

Therefore, by providing the auxiliary transfer device 26, a problem caused by the direct transfer from the stock transfer transfer device 19 having a different transfer speed to the main supply transfer device 25 is prevented. The auxiliary transport device (inner) 3 of the auxiliary transport device 26
4 and the main supply transport device 25 have different transport speeds,
The transport posture is already horizontal, and the main supply transport device 2
No. 5 takes over what has been transported by the auxiliary transport device (inner) 34 as it is, so that transport disruption does not occur.

The auxiliary transfer device (outer) 33 is formed relatively long, the auxiliary transfer device (inner) 34 is formed relatively short, and the auxiliary transfer device (outer) 33 is connected to the auxiliary transfer device (inner) 3.
When the grain culm is taken over from the stock-side handover / carrying device 19, the stem of the grain culm is handed over to the auxiliary carrying device (outside) 33 to prevent spilling of the culm. . Further, since the auxiliary transport device (outside) 33 is disposed substantially linearly in front of the main supply transport device 25, the holding positions of the auxiliary transport device (outside) 33 and the main supply transport device 25 are not changed. This also ensures a smooth and successful transfer.

As shown by the dashed-dotted line X in FIG. 4 and FIG. 7, the tip-side transport device in which the end of the tip-side transport device 11 substantially overlaps with the end portion of the stock-side transfer device 19 11a, the operation end area of the end portion of the transport lug 43, the position of the guide roller 23 of the stock-side transfer device 19,
The position of the front gear 36 of the auxiliary transfer device (outside) 33 is
Since the stalks are arranged so as to substantially match the stalk conveying posture, the stalks are simultaneously nipped and conveyed at three places to prevent spilling of the stalks,
In addition, since the arrangement is devised, it is possible to achieve a compact and efficient structure without increasing the cost. Further, since the height of the auxiliary transfer device (inner) 34 of the auxiliary transfer device 26 and the height of the main supply transfer device 25 are the same,
The transfer from the auxiliary transfer device (inner) 34 to the main supply transfer device 25 is also improved.

Further, as shown in FIG.
The base of the tubular member 60 is mounted in a cantilevered state on the upper part of the shaft, and the rotary shaft 48 of the rear gear (inner) 41 is mounted on the tubular member 60. Can be offset inward.

Therefore, a space can be formed between the gear box 50 and the auxiliary transfer device 26, and the input pulley 54 of the gear box 50 and the base of the vertical support frame 13 of the pre-cutting device 4 can be formed in this space. An output pulley 55 provided at the left end of the horizontal transmission cylinder 14 can be disposed, interference between the transported grain culm and the belt 56 can be prevented, and it is possible to prevent straw waste from wrapping around the belt 56. Further, since the gear 61 fixed to the rotating shaft 48 in the gear box 50 is formed to have a small diameter, the height of the gear box 50 can be reduced, and therefore, the gear box 50 is located below the inlet funnel 62. And space can be used effectively, and the entire aircraft can be made compact.

As shown in FIG. 8, a boss 64 is fitted around the outer periphery of the cylindrical member 60, and a breather hole 65 is provided at a portion where the boss 64 and the cylindrical member 60 overlap. Since the fluid leaks out from the breather hole 65 and oozes between the boss 64 and the tubular member 60, the rotation of the boss 64 with respect to the tubular member 60 is improved, and the inclination change of the auxiliary transport device 26 described later is smoothly performed. Further, the breather hole 65 is provided with the boss 64.
As a result, it is possible to prevent oil from blowing out or foreign matter from entering.

When the actuator 73 is actuated as shown in FIGS. 8 and 10, the arm 74 is rotated to move the rod 72 up and down and the horizontal rod 69 to move up and down the boss 64.
, The height of the front gear (outside) 36 of the auxiliary transfer device (outside) 33 can be adjusted in the vertical direction. Accordingly, the auxiliary transport device 26 is
The angle of inclination can be changed by rotating in the vertical direction about the axis of.

In this case, since the rotation center of the rotation arm 66 is set to the axis of the boss 64 fitted to the cylindrical member 60, a separate rotation fulcrum member is not required, and a compact and strong fulcrum is provided. be able to.

The input pulley 54 of the gearbox 50
Is located below the cylindrical member 60, and an output pulley 55 is provided on the horizontal transmission cylinder 14 of the mowing pre-processing device 4. The output pulley 55, the input pulley 54, and the belt 56 are formed by the gear box 50 and the auxiliary transport device 26 in plan view. The input pulley 54 and the belt 56 do not interfere with each other even when the auxiliary transfer device 26 of the grain culm supply and transfer device 18 is moved up and down around the center of the cylindrical member 60, and the vertical movement range And the maintenance of the belt 56 is facilitated.

Since part or all of the output pulley 55, the input pulley 54, and the belt 56 are located below (inner than) the stock-side transfer device 19, the stock-side transfer material is used. Since each member such as the frame and the chain guide rail of the device 19 covers the upper portion thereof, the device can function as a cover and can prevent the attachment of straw chips and dust, and in particular, the auxiliary transport device 26 of the grain culm supply transport device 18 When the roller is lowered to the center of the cylindrical member 60, the interference of the conveyor grain culm belt 56 can be prevented, and the swarf is prevented from winding around the belt 56.

When the pivot arm 66 is pivoted about the boss 64 by the above-described series of movements based on the arm 74 of the actuator 73 moving the rod 72 up and down, the starting end of the auxiliary transfer device 26 moves up and down. Therefore, the starting end of the auxiliary transfer device 26 can be moved closer (distanced) to the end (guide roller 23) of the stock-side transfer device 19, and the holding position of the grain stalk can be further changed. The range of gain can be extended. In other words, the stock transfer side transfer device 19 and the auxiliary transfer device 26 are configured so as to be freely movable toward and away from each other, so that the adjustment range can be expanded.

When the auxiliary transport device 26 (chain 38: solid line) is moved upward as shown in FIG.
The distance between 9 and chain 38 is reduced. Holding of culms distance L ₁
Because never vary the length culm and short culm, in the case of short-culm length L ₂ between strains based on end from the gripping position of the strain base side takeover conveying device 19 is shortened. Therefore, by moving the auxiliary transport device 26 upward, it is possible to pinch and transport the root of the grain culm even with a short culm.

On the other hand, the auxiliary transport device 26 (chain 3
(8: dotted line), the distance between the stock-side transfer device 19 and the chain 38 increases. For long culm length L ₃ from the clamping position of the strain base side takeover conveying device 19 to the strain based on the end is longer. Therefore, by lowering the auxiliary transport device 26, the root of the grain culm can be pinched and transported, and the transport posture is not disturbed and stable transport can be performed.

When the rotation of the auxiliary transfer device 26 is performed in conjunction with the adjustment of the handling depth of the handling depth adjusting device 17, the angle of the handling depth adjusting device 17 is detected by the potentiometer 17a (FIG. S6). When the actuator 73 is linked in this way, the linked configuration can be achieved without increasing the number of parts. Further, the actuator 73 is controlled by a handling depth sensor 77 (FIG. 3) for adjusting the handling depth of the handling depth adjusting device 17.
The same effect can be obtained by linking.

As shown in FIG. 8, the guide rail (outside) 35 of the auxiliary transfer device (outside) 33 is moved forward with respect to the mounting member 70, and the chain (outside) 3 of the auxiliary transfer device (outside) 33 is moved.
When the vertical rod 67 is moved to the front side with respect to the rotating arm 66 in this state, the chain (inner) 42 of the auxiliary transport device (inner) 34 can be tensioned. Therefore, the chains 38 and 42 of the auxiliary transport device (outer) 33 and the auxiliary transport device (inner) 34 of the auxiliary transport device 26 can be adjusted independently.

Further, according to the embodiment of the present invention, the cereal culm supply / conveyance device 18 is provided with the auxiliary conveyance device 2 for receiving the harvested cereal culm from the stock-side handover / conveyance device 19 provided in the pre-cutting device 4.
6 and a main supply transport device 25 that receives the cut culm from the auxiliary transport device 26 and transports it to the rear of the machine.

In addition, the auxiliary transport device 26 has its start end facing the end of the stock-side transfer device 19,
And an auxiliary transfer device (outside) 33 which is substantially linear with the main supply and transfer device 25 and is located in front of the main supply and transfer device 25; An auxiliary transport device (inner) 34 that superposes and faces each of the starting end portions of the supply transport device 25.

At this time, the end portion of the tip-side transfer device 11a and the stock-side transfer device 19 along the one-dot chain line X-ray in FIG.
In the positional relationship (see FIG. 12) of the chain of the chain and the chain 38 of the auxiliary transfer device (outside) 33 as viewed from the cross-sectional direction (FIG. 12), the action portion (center portion of the lug) of the tip end transfer device 11a and the stock transfer side transfer device 19 The vertical movement range of the chain 38 of the auxiliary transport device 33 is set so that the tip of the chain 38 of the auxiliary transport device (outside) 33 that swings up and down is always lower than the straight line L connecting the chain distal end of the chain.

With the above configuration, the grain culm is transferred to the tip-side transport device 1
Since the culm is conveyed on the chain 38 of the auxiliary conveyance device (outside) 33 below a straight line connecting the chain 1a and the chain of the stock transfer side conveyance device 19, the grain stalk is always bent in the shape of a "ku" and conveyed. You. This means that the cereal stem is firmly pressed against the chain of the stock transfer side transfer device 19, and the transfer by the chain is assured.

As a result, the stalk does not spill when the chain is transferred between the chain portion of the stock transfer side transfer device 19 and the chain portion 38 of the auxiliary transfer device (outside) 33.

Further, as shown in FIG. 13 (side view) and FIG. 14 which is a plan view of the cockpit, the auxiliary transport device 26 (auxiliary transport device (outer) 33 and the auxiliary transport device (inner) which swing vertically. 34) A lever 90 for operating is provided in the cockpit,
A configuration may be adopted in which the operator can manually adjust the vertical position of the auxiliary transport device 26 according to the culm length and the posture of the cereal culm while watching the threshing supply state.

With this configuration, the operator can adjust the auxiliary transport device 26 in the vertical direction in the cockpit, so that the operability of the combine is improved. For example, at the time of pillow fetching (before entering the field into the combine 1 by cutting the stalks at the corners of the field with human power in advance), the auxiliary transport device 26 is used.
Is lowered, the work is easy, but after the work is completed, the operator can operate from the cockpit even if the operator forgets to raise the auxiliary transport device 26 and sits on the cockpit.

Further, in the grain culm supply section to the threshing device 3, there is an advantage that the operator can adjust the auxiliary transport device 26 while visually recognizing the culm length and performing a mowing operation according to the culm length. If the auxiliary transport device 26 is
If there is a lever for vertical movement, it is necessary to stop the machine and move a person to the threshing device side and adjust the height of the auxiliary transport device 26 in the vertical direction after harvesting according to the culm length. 13 and 14 do not require such trouble.

Auxiliary transport device 26 swinging up and down
Chain 42 of the auxiliary transfer device (inner) 34 and the main transfer device 2
A space S is formed between the space and the feed chain 28 of the airframe 5, and waraxes fall downward from the space S to form the airframe 2.
It is caught on the top and the Karamin cover (not shown), and it easily accumulates.

FIGS. 15 (side view) and FIG. 16 (plan view) show the auxiliary transport device 2 in order to eliminate the accumulation of waraks.
A guide plate 91 inclined forward and downward can be provided below the feed chain 6 of the main transfer device 6 and the main transfer device 25. The guide plate 91 is supported by the rotation shaft 44 via a support member 92.

Waraks that have fallen from the space S by the guide plate 91 accumulate on the guide plate 91, and when the amount thereof exceeds a certain level, the auxiliary transfer device 26 (the auxiliary transfer device 33,
34) transports the cereals to the threshing apparatus 3 side, and then scrapes forward by the chains 38, 42 of the auxiliary transport devices 33, 34 which are turned over and move in a direction (arrow X direction) in which the cereals are not transported. , And sequentially transported forward. In this way, it is possible to prevent clogging due to accumulation of waraxes in the space S.

As shown in FIGS. 17 and 18, a plurality of rectangular guide rubbers 94 (94 a, 94 a) are provided behind the chain of the stock transfer side transfer device 19 toward the entrance of the threshing device 3.
By providing b), it is possible to prevent the cereal stem from being entangled in the chain of the stock transfer side transfer device 19 and to improve the feed of the cereal stem to the threshing device 3.

After the stock-side transfer device 19 conveys the cereals to the feed chain 28, the stock-side transfer device moves in a direction in which the culms are not conveyed (the direction of arrow Y in FIG. 18). Guide rubbers 94a, 94 are provided on the upper part of the 19 chain.
Since there is b, the cereal stem does not get caught in the chain of the stock-side transfer device 19. Also, the guide rubber 94
a, 94b, the cereals supplied on the guide rubbers 94a, 94b
4b is smoothly slid over without resistance, and is smoothly transported to the entrance portion ("Jugo") of the threshing device 3.

FIGS. 19, 20 and 21 show another embodiment of the auxiliary transport device 26 of the present invention. In this configuration, the chain of the auxiliary transport device 26 is provided with two long and short holding guides. FIG. 19 is a side view of the vicinity of the auxiliary transfer device 26, FIG. 20 is a plan view of the vicinity of the auxiliary transfer device 26 of FIG. 19, and FIG.

In the example shown in FIGS. 19 and 20, one end is fixed to the lower surface of a fulcrum bracket (outer) 96a provided on the pre-cutting device frame 96 of the pre-cutting device 4, and the auxiliary transport device (outer) 33 is fixed. The holding guide (outside) 38a that abuts on the chain (outside) 38 is fixed to the chain (outside) 38. One end is fixed to a bracket (inner) 96c serving as a link fulcrum provided on the lower surface of a bracket (outer) 96b serving as a fulcrum provided slightly forward of the front end of the auxiliary transport device (inner) 34 of the frame 96, and A downwardly protruding clamping guide (inner) 42a extending in the longitudinal direction is loosely fitted on the chain (inner) 42 of the transport device (inner) 34 so as to be vertically rotatable. Also, as shown in FIG.
Two of the holding guide (outside) 38a and the holding guide (inside) 42a
Since the cereal stem is clamped by the book guide, the stalk during conveyance of the cereal stem and disturbance in the conveying posture (cross of the cereal stem) are eliminated.

At this time, the cereal stalks transported by the chain of the tip-side transport device 11a and the stock-side transfer device 19 are held by the nipping guide (outer) 38a of the auxiliary transport device (outer) 33.
Is transported to the auxiliary conveying device (outside) 33 by the pinching guide (outside) 33a and the chain (outside) 38 while being pinched near the root of the grain stalk, and then auxiliary transported by the pinching guide (inside) 42a. It is taken into the device (inner) 34, is conveyed while being pinched by the pinching guide (inner) 42a and the chain (inner) 42 near the root of the cereal stalk slightly nearer to the tip, and is further extended forward. It is taken into the main supply and transport device 25 by 27 and is supplied and transported to the threshing device 3 while being pinched by the pinching rod 27 and the feed chain 28 in the vicinity of the root of the grain stem.

Further, the holding guide (outside) 38a of the auxiliary transfer device (outside) 33 protrudes forward from the front end of the chain (outside) 38, and has a large opening. Since it approaches (outer) 38, the grain stalks conveyed from the stock-side transfer device 19 can be taken in smoothly. Further, since the holding guide (outside) 38a swings up and down around the bracket 12a of the pre-cutting device frame, even if the auxiliary transport device 26 swings up and down,
The nipping guide (outside) 38a uses the chain (outside) 3 by its own weight.
Chain (outside) 38 with little change in relative position to 8
Auxiliary transport device (outside) 3
The grain holding state of No. 3 hardly changes irrespective of the vertical swing, so that a good conveying action can always be performed.

Since the holding guide (inside) 42a also swings up and down about the bracket 96b of the pre-cutting device frame 96, even if the auxiliary conveyance device 26 swings up and down, the holding guide (inside) is used. Chain (inside) by its own weight of 42a
The position relative to 42 hardly changed, and the chain (inside) 4
2, the holding state of the grain stalk of the auxiliary transport device (inner) 34 does not change due to the vertical swing.

The holding guide (inner) 42a of the auxiliary transfer device (inner) 34 has a downward convex shape, is provided forward of the start end of the auxiliary transfer device (inner) 34, and has a partial circle in side view. Since it is curved and expanded in an arc shape, it can smoothly take in the culm that is being transported without resistance,
Even if the holding guide (outside) 38a of the auxiliary transfer device (outside) 33 rises, the action portion of the holding guide (inside) 42a remains lowered, and the transfer operation of the auxiliary transfer device (inside) 34 is not impaired. Since the nipping guides 38a and 42a have a downwardly convex shape, a large amount of grain culm during pillow handling can be easily nipped between the nipping guides 38a and 42a and the chains 38 and 42 and transported to the threshing device 3.

The clamping rod 27 of the main supply / conveyance device 25 extends forward from the front end of the feed chain 28 so as to expand the entrance portion, and is conveyed from the auxiliary conveyance device 26. Accepting and taking in the grain culm is good, and the culm spills at the transfer part from the auxiliary transport device 26 to the main supply transport device 25, and disturbs the strain, in order to hold down and pinch the grain culm early. Without this, it is possible to stabilize the supply and transportation of the grain culm.

The holding force of the holding guide (outer) 38a and the holding guide (inner) 42a is generated by gravity acting on the respective holding guides 38a and 42a.
A mechanical urging means such as a torsion spring is provided at the link fulcrum (outside) 27b and / or the link fulcrum (inside) 38c to urge the holding guide (outside) 38a and the holding guide (inside) 42a downward to hold the holding force. May be generated.

FIGS. 22 and 23 show the main transfer device 2 of the present invention.
5 shows another embodiment. FIG. 22 is a side view of the vicinity of the main transfer device 25, and FIG. 23 is an auxiliary transfer device 26 of FIG.
FIG. 2 is a plan view of the vicinity of a main transport device 25.

The feed chain 28 of the main supply / conveyance device 25
23 is opened at the position indicated by the imaginary line in FIG. 23, the rotation fulcrum of the rotation shaft 44 is a support frame 97 protrudingly provided on the traveling frame 2, and the frame 97 or the gearbox 100 assembled on the frame 97. Is connected to a support base 15 provided on the traveling frame 2 by a telescopic rod 99.

Thus, when the feed chain 28 is at the open position, the frame of the feed chain 28 is long,
Because of its heavy weight, the rotation fulcrum of the rotation shaft 44 deflects, and the feed chain 2
No. 8 sprocket 28a does not mesh with the feed chain 28. In order to prevent this, the support base 15 on the front side of the vehicle body with respect to the rotation fulcrum of the rotation shaft 44 is connected to the frame 97 for supporting the rotation fulcrum or the gearbox 100 or the like attached thereto, and is expanded and contracted. By allowing the sprocket 28 to rotate freely,
a can be centered.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a conveying means and a flow of a grain culm in a pre-cutting treatment device, a grain culm supply / conveying device, and a threshing device according to an embodiment of the present invention.

FIG. 2 is a side view of the pre-cutting device according to the embodiment of the present invention.

FIG. 3 is a plan view of the pre-cutting device according to the embodiment of the present invention.

FIG. 4 is a side view of a pre-cutting device and a grain culm supply and transport device according to an embodiment of the present invention.

FIG. 5 is a schematic plan view of the auxiliary transport device according to the embodiment of the present invention in a developed state.

FIG. 6 is a schematic plan view of a deployment state of an arrangement of a head-side transport device, a stock-side transfer device, and an auxiliary transport device according to the embodiment of the present invention.

FIG. 7 is a schematic rear view of the deployment state of the arrangement of the tip-side transport device, the stock-side transfer device, and the auxiliary transport device (outside) according to the embodiment of the present invention.

FIG. 8 is a partial cross-sectional schematic plan view of the auxiliary transport device and the gear box according to the embodiment of the present invention in an unfolded state.

FIG. 9 is a partial cross-sectional schematic front view of the threshing apparatus according to the embodiment of the present invention.

FIG. 10 is a side view of a pre-cutting device and an auxiliary transport device according to the embodiment of the present invention.

FIG. 11 is a partial cross-sectional schematic plan view of the vicinity of the auxiliary transport device according to the embodiment of the present invention.

FIG. 12 is a front view of the vicinity of an auxiliary transport device according to the embodiment of the present invention.

FIG. 13 is a side view of the vicinity of the auxiliary transport device according to the embodiment of the present invention.

FIG. 14 is a plan view of a cockpit according to the embodiment of FIG.

FIG. 15 is a side view of the vicinity of the auxiliary transfer device according to the embodiment of the present invention.

FIG. 16 is a plan view of the embodiment of FIG.

FIG. 17 is a perspective view of the vicinity of an auxiliary transport device according to the embodiment of the present invention.

FIG. 18 is a plan view of the embodiment of FIG.

FIG. 19 is a side view of the vicinity of a main supply and conveyance device and an auxiliary conveyance device according to the embodiment of the present invention.

20 is a plan view of the vicinity of a main supply and conveyance device and an auxiliary conveyance device of FIG. 19;

FIG. 21 is a plan view showing the vicinity of a main supply conveyance device and an auxiliary conveyance device of FIG. 19;

FIG. 22 is a side view of the vicinity of the main transfer device according to the embodiment of the present invention.

FIG. 23 is a plan view of the embodiment in FIG. 22;

FIG. 24 is a side view of a combine of a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Combine 3 Threshing device 4 Cutting pretreatment device 5 Weeding tool 6 Raising case 7 Star wheel 8 Scraping device 9 Cutting blade 10 Stock side transfer device 11 Ear side transfer device 11a Ear side transfer device 12 Cutting frame 13 Vertical support frame DESCRIPTION OF SYMBOLS 14 Lateral transmission cylinder 15 Support stand 16 Cutting vertical cylinder 17 Handling depth adjusting device 18 Grain culm supply / conveying device 19 Stock side transfer device M1 Handling depth adjusting actuator 17a, 19a Potentiometer 23 Guide roller M2 Transfer conveying actuator 25 Main supply transfer device 26 Auxiliary transfer device 27 Nipping rod 27a Link fulcrum bracket (outside) 27b Link fulcrum (outside) 28 Feed chain 29 Upper cover 30 Feed chain guide rail 30a Rotating arm mounting bracket 30b Locking mechanism 31 Front passive wheel Body 32 rear passive wheel 33 Auxiliary transfer device (outside) 34 Auxiliary transfer device (inside) 35 Guide rail (outside) 36 Front gear (outside) 36a Front lower gear (outside) 37 Rear gear (outside) 38 Chain (outside) 38a Nipping guide ( Outer) 38b Link fulcrum bracket (inner) 38c Link fulcrum (inner) 39 Mounting shaft 40 Front gear (inner) 40a Guide rail (inner) 41 Rear gear (inner) 42 Chain (inner) 42a Nipping guide (inner) 43 Transport Lug 44 rotation shaft 45 support 46 support member 47 rotation arm 48 rotation shaft 50 gear box 51 gear group 90 operation lever 91 guide plate 92 support member 94 (94a,
94b) Guide rubber 96 Cutting pretreatment device frame 96b, c Support frame bracket 97 Support frame 100 Gear box 99 Rod 100 Auxiliary gear box 101 Dust exhaust gear box

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshihiko Okada 1 Toya-cho, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Engineering Department (72) Inventor Yasushi Ihara Yasura 1 Tobe-cho, Iyo-gun, Ehime Pref.

Claims (1)

[Claims] The present invention relates to a cutting depth control device for conveying grain culm provided in a mowing device, a stock transfer side conveying device, and a supply conveying means for supplying and conveying cereal culm to a threshing device at a constant speed. Auxiliary transport means that synchronizes and shifts is provided, so that the tip of the auxiliary transport device that swings up and down is always below the straight line that connects the handling depth adjustment device and the grain culm transport action section of the stock transfer side transport device. A combine characterized in that the vertical movement range of the device is set.