JP4833239B2 - Combine - Google Patents

Description

  The present invention relates to a combine in which a threshing device is provided behind a driving unit, and a sheave case incorporated in a sorting unit of the threshing device is configured to be extracted from a dust discharge port opened at a rear end of the threshing device.

In the combine configured as described above, the roller provided at the front part of the sheave case is inserted from behind into the guide rail provided on the inner surface of the sorting part, and the rear part of the sheave case is connected to the eccentric rotation mechanism. By moving the front part of the sheave case linearly back and forth diagonally back and forth by the eccentric rotation of the core rotation mechanism, the rear part of the sheave case is circulated and rotated back and forth, so that the sheave case A feed function and a sieve selection function are provided. Also, if necessary, the connection between the sheave case and the eccentric rotation mechanism is released, and the sheave case is pulled backward from the dust outlet at the rear end of the threshing device to perform cleaning, replacement of parts, etc. (For example, refer to Patent Document 1).
Japanese Patent Laid-Open No. 11-75521

  In recent years, the chaff sheave for coarse sorting equipped in the sheave case has been configured so that the opening can be adjusted, and when the amount of processed material increases, the opening is increased to increase the chaff sheave sorting capacity, and when the amount of processed material is small, the opening is reduced. As a result, products that can be sorted accurately with little dust are being developed.

  As means for adjusting the opening of the chaff sheave, means for directly manipulating the opening adjusting operation member provided in the sheave case, or operating the opening adjusting operation member using an electric actuator such as a motor. At the same time, means for operating the electric actuator by a switch operation from a driving unit is known. In the former configuration, it is necessary for the operator to move from the driving unit to the adjustment operation part at the rear of the machine body every time the opening adjustment operation of the chaff sheave, and the opening adjustment operation is troublesome. In the latter configuration, the opening degree of the chaff sheave can be easily adjusted at any time by remote control from the operating section, but when the sheave case is pulled out and maintenance is performed, the electrical wiring is illegally routed and damaged. Or there is a risk of causing contact failure at a connector or the like in the electrical wiring, and it is necessary to strictly maintain the electrical system.

  The present invention has been made paying attention to such points, and the operator of the operation unit can arbitrarily adjust the opening degree of the chaff sheave, and the sheave case is attached to the dust outlet at the rear end of the threshing device. The purpose is to make it easy to insert and remove from the maintenance.

1st invention is the combine which arranged the threshing device behind the operation part, and constituted the sheave case built in the selection part of the threshing device so that extraction was possible from the dust outlet opened at the rear end of the threshing device,
The chaff sheave installed in the sheave case is configured so that the opening degree can be adjusted, and the operating member for adjusting the opening degree of the chaff sheave and the opening adjusting operation tool provided in the vicinity of the operating unit are linked to the operating member. The rear part of the connected operation wire is led to the dust outlet at the rear end of the threshing device, and the rear part of the operation wire and the opening degree adjusting operation tool are interlockedly connected.

According to the above configuration, the opening degree of the chaff sheave can be adjusted via the operation wire and the operating member when the operator of the operating unit operates the opening adjustment operation tool in a normal working state.
In this case, the operation wire extends from the chaff sheave (actuating member) toward the rear (the dust outlet at the rear end of the threshing device). As a result, when performing maintenance such as cleaning the chaff sheave or replacing parts, if the chaff sheave is pulled backward from the dust outlet at the rear end of the threshing device, the operation wire will only loosen as the chaff sheave moves rearward. Even when the wire is connected, the chaff sheave can be pulled out considerably.
Therefore, according to the first invention, the operator can mechanically arbitrarily adjust the opening degree of the chaff sheave from the operating part, and the sheave case can be easily inserted and removed from the dust outlet at the rear end of the threshing device for maintenance. can do.

According to a second invention, in the first invention,
The rear part of the operation wire connected to the operating member is connected to the relay member equipped on the side plate of the threshing device, and the relay member and the opening adjusting operation tool are interlocked and connected by a linkage member arranged outside the threshing device. .

  As a means for mechanically interlocking and connecting the opening member for adjusting the opening of the sheave case and the opening adjusting operation tool near the operating unit, for example, one operation wire connected to the operating member is connected from the dust outlet. It is also conceivable to have a structure that is extended to the front and interlocked with the opening adjustment operation tool. However, in this structure, it is necessary to bend the operation wire led rearward greatly forward, and the operation wire becomes larger due to the bending of the operation wire or the operation wire becomes larger than necessary to increase the bending curvature. Need to be long. On the other hand, as in the present invention, by using an operation wire going backward from the inside of the threshing device and another linking member going forward from the rear portion of the threshing device, the operation wire is made as short as possible and arranged with less bending. As a result, the wire can be operated with little operational resistance, and the linkage member outside the threshing device can be made as short as possible.

According to a third invention, in the first or second invention,
The rear part of the operation wire is detachably connected to the relay member.

  According to the above configuration, when performing maintenance such as cleaning the chaff sheave or replacing parts, the chaff sheave is extracted rearward from the dust outlet at the rear end of the threshing device. In this case, when carrying out the extracted chaff sheave to another location, the rear portion of the operation wire may be removed from the relay member.

According to a fourth invention, in the second or third invention,
The linkage member is an operation wire.

  According to the above configuration, the operation wire as the linkage member outside the threshing device can be routed freely avoiding other structures and device parts, and mechanical linkage between the relay member and the opening adjustment operation tool Connection can be easily performed.

  FIG. 1 shows an entire side surface of an ordinary type (whole-throw-in type) combine, and FIG. 2 shows an entire plane thereof. In this combine, a threshing device 3 and a grain recovery unit 4 are arranged in parallel on the left and right on a traveling machine body 2 provided with a pair of left and right crawler traveling devices 1, and a cabin specification is provided in front of the grain recovery unit 4. A driving unit 5 is provided, and a feeder 6 for harvesting crop conveyance is connected to the front part of the threshing device 3 so as to swing up and down around the fulcrum X, and a cutting unit 7 is connected to the front end of the feeder 6. It has a structure.

  The mowing unit 7 has a structure in which a clipper type mowing device 12 and an auger 13 that laterally feeds the harvested crop to the middle of the mowing width are installed over the right and left weed frames 11. The feeder 6 has a chain-type rake conveyor 14, and the crop that has been laterally fed by the auger 13 and raked rearward by the rake fingers 15 is raked and conveyed along the bottom surface of the feeder 6 to thresh. The apparatus 3 is supplied to the front end of the apparatus 3.

  A hydraulic cylinder 16 is installed between the traveling machine body 2 and the lower portion of the feeder 6, and the cutting portion 7 is swung up and down integrally with the feeder 6 by the expansion and contraction operation of the hydraulic cylinder 16. Above the front part of the mowing unit 7, a scraping reel 17 that scrapes up and raises the planted cereal is provided.

  As shown in FIG. 3, the upper half of the threshing device 3 is provided with a handling chamber 22 that pivotally supports a handling cylinder 21 in the front-rear and horizontal directions, and a receiving net (concave) 23 is provided below the handling chamber 22. In the lower part of the handling chamber 22, a sorting unit 24 that sorts the processed material leaked from the receiving net 23 into the first product (fine particles), the second product, and the dust is provided.

  The sorting unit 24 is equipped with a sheave case 25 that sifts and sorts the processed material leaked from the receiving net 23 while swinging it backward, and the sorting unit 24 sorts toward the sheave case 25 at the front end. There is a tang 26 that supplies the wind. At the rear end of the threshing device 3, large straw waste discharged from the dust feed port 27 formed at the lower rear end of the handling chamber 22 and straw waste discharged from the rear end of the sorting unit 24. A dust outlet 28 leading to the outside is provided, and a long straw scrap discharged through the dust outlet 28 is shredded by a rotating chopper 29.

  As shown in FIG. 3, the sheave case 25 is moved forward and backward through left and right rollers 33 to a guide rail 32 in a forward downward inclined posture in which the front left and right sides are fixed to the inner surfaces of the left and right side plates 31 in the sorting unit 24. The rear portion of the sheave case 25 is detachably coupled to an eccentric rotation mechanism 34 that is horizontally mounted between the left and right side plates 31. When the eccentric rotation mechanism 34 operates to rotate eccentrically, the front portion of the sheave case 25 linearly reciprocates in the diagonally front-rear direction, and the rear portion of the sheave case 25 operates to rotate and rotate back and forth. It is comprised so that the back feed function and sieve selection function of the mounted processed material may be exhibited.

  From the rear end of the guide rail 32 to the rear part of the threshing device, an insertion / extraction rail 35 for placing and rolling and guiding the roller 33 is continuously provided, and the connection with the eccentric rotation mechanism 34 is released. The roller 33 of the sheave case 25 is guided by the insertion / extraction rail 35 and guided rearward so that the sheave case 25 can be extracted rearward from the dust outlet 28.

  As shown in FIG. 4, the tang 26 is driven through a belt-type continuously variable transmission 36 so as to be capable of shifting. The belt-type continuously variable transmission 36 changes the rotary rotation speed by changing the belt winding effective diameter by changing the left and right divided pulley intervals in the transmission pulley 38 provided on the rotary drive shaft 37, and arbitrarily selects the selected air volume. It can be changed and adjusted. An operating lever 39 for changing the belt winding effective diameter of the transmission pulley 38 and an air volume adjusting lever 40 arranged at the upper right portion of the front end portion of the threshing device 3 are interlocked and connected via an operation wire 41. The air volume adjusting lever 40 is provided at a position that can be reached by opening the side window 8a of the cabin 8 in the operating section 5, and the air volume adjusting lever 40 is adjusted by swinging up and down to select a plurality of positions of the lever guide 42. By locking, it is possible to adjust the air volume in multiple stages.

  A first collecting unit 45 and a second collecting unit 46 are respectively provided at the lower part of the sorting unit 24, and the collected first item is transported by a lateral feed screw 47 and carried out of the apparatus, and then a bucket conveyor. The second product that has been fed into the grain collection unit 4 by the lifting device 48 and is transported by the lateral feed screw 49 and carried out of the device, is transported by the screw-type reducing device 50, and is sheave case 25. It is supplied to the front part of the machine and is subjected to a re-sorting process.

  At the front part of the sheave case 25 is a corrugated front grain pan 51 for swinging and transferring the processed material and the reduced second product leaked from the front part of the receiving net 23 to the rear, and at the end of the front grain pan 51. For coarse selection, the sieved line 52 is used to loosen the treated product that has reached the rear end of the sieve line 52 and the treated product that has leaked from the front and rear intermediate parts of the receiving net 23 while being oscillated backward. The fine pan 54 and the grain sieve 55 for screening the chaff sheave 53, the sieve line 52, and the treated product leaked from the chaff sheave 53, the treated product reaching the end of the chaff sheave 53 and the treated product falling from the rear of the receiving net 23. The Strollac 56 that loosens the entanglement of the processed material while swinging and moving backward, and the processed material dropped from the Strollack 56 remains screened and sorted while moving backward. Chaff sieve 57 for discharge for feeding the La waste compounds in dust-exhaust port 28, and the like are equipped.

  The front gren pan 51 performs so-called specific gravity difference sorting in which the processed material is divided into layers according to the specific gravity difference during the rocking transfer. The small processed material is divided into upper layers and sent to the next sieving line 52.

  When the processed product sorted into the upper and lower two layers by the front grain pan 51 moves on the sieve line 52, the lower grains fall immediately and are supplied to the grain pan 54 and the grain sieve 55, and do not fall from the sieve line 52. Further, the upper layer of straw scraps and the grains mixed therein are delivered to the chaff sheave 53 for rough selection.

  As shown in FIG. 5, the rough sorting chaff sheave 53 is configured by arranging a large number of lip plates 53a in parallel at a constant pitch. Each lip plate 53a is pivotally supported by the left and right side walls 25a of the sheave case 25 so that it can swing back and forth around the fulcrum a of the upper end portion at the left and right, and the left and right lower end portions of each lip plate 53a are front and rear. The pair of left and right long support frames 53b are pivotally supported, and the angles of all the lip plates 53a are changed in conjunction with the back-and-forth movement of the support frame 53b. That is, when the support frame 53b moves forward, the angle of each lip plate 53a becomes loose and the opening of the chaff sheave 53 becomes small. Conversely, when the support frame 53b moves backward, the angle of each lip plate 53a becomes tight. The opening degree of the chaff sheave 53 is increased.

  A structure for adjusting the opening degree of the rough chaff sheave 53 is configured as follows. A lower pivot pin 58 that pivotally connects a lower end portion of a predetermined lip plate 53a positioned in the front and rear middle and a support frame 53b on the left side of the machine body has an arc-shaped elongated hole 59 formed in the side wall 25a of the sheave case 25. It penetrates and protrudes to the left outer side of the sheave case 25. A lower pivot pin 58 is coupled to the outer surface of the left side wall 25a of the sheave case 25 and is pivotally coupled to the outer surface of the fulcrum a so as to be swingable around the fulcrum a. By swinging, the support frame 53b is moved back and forth, so that the opening degree of the chaff sheave 53 is changed.

  A tension spring 62 is stretched between the lower part of the actuating member 60 and the spring receiving member 61 attached to the outer surface of the side wall 25a of the sheave case 25, and the actuating member 60 is swung in the direction of increasing the opening of the chaff sheave 53. A dynamic urging force is applied, and an inner front portion 63a of an operation wire 63 made of a release wire is connected to an upper end portion of the operating member 60, and a rear portion of the operation wire 63 is led out toward a rear end of the threshing device 3. ing.

  As shown in FIGS. 4, 6, and 7, a relay member 64 is mounted at a position near the rear end of the left side plate 31 in the sorting unit 24 so as to be rotatable around the lateral fulcrum b. The relay member 64 is configured by connecting and fixing an inner arm 64b and an outer arm 64c to left and right projecting portions of a support shaft 64a that is pivotally supported by the side plate 31. The rear part 63b is detachably connected to the inner arm 64b.

  The outer arm of the relay member 64 is connected to the inner rear portion 65b of another operation wire 65 as a linking member for hand operation, and the operation wire 65 passes through the left outer side of the threshing device 3 and is connected to the threshing device 3. As shown in FIG. 8, the operation wire 65 is bent and extended to the upper right portion of the front end portion of the threshing device 3 across the front of the threshing device 3.

  An opening adjusting lever 66 as an opening adjusting operation tool is arranged in the upper right part of the front end portion of the threshing device 3 along with the air volume adjusting lever 40 so as to be swingable up and down. The inner front portion 65a of the wire 65 is connected. The opening adjusting lever 66 is configured to be able to be latched and held at the lever guide 42 at a plurality of operation positions, and the inner front portion 65a of the operation wire 65 is pulled and operated as the opening adjusting lever 66 is swung downward. Then, as shown in FIG. 6, the relay member 64 is rotated clockwise, and the operation wire 63 inside the threshing device is pulled backward along with this, and as shown in FIG. The actuating member 60 is rotated against the tension spring 62 and actuated in a direction in which the opening degree of the chaff sheave 53 is reduced. Conversely, as the opening adjustment lever 66 is swung upward, the inner front portion 65a of the operation wire 65 is loosened, and the relay member 64 is rotated counterclockwise in FIG. 6, so that the inner rear portion 63b of the operation wire 63 is rotated. The opening adjusting member 60 is rotated by the urging force of the tension spring 62 so that the opening of the chaff sheave 53 is increased.

  The present invention is configured as described above, and the opening of the chaff sheave 53 can be arbitrarily adjusted by opening the side window 8a of the cabin 8 and operating the opening adjustment lever 66 even during the harvesting operation. .

  When performing maintenance such as cleaning of the chaff sheave 53 or replacement of parts, the chaff sheave 53 that has been disconnected from the eccentric rotation mechanism 34 is extracted rearward from the dust outlet 28. In this case, as shown in FIG. 11, the operation wire 63 only loosens as the chaff sheave 53 moves backward, so that the chaff sheave 53 can be pulled out considerably even when the operation wire 63 remains connected. If the inner rear portion 63b of the operation wire 63 is removed from the inner arm 64b of the relay member 64, the extracted chaff sheave 53 can be carried out to another location.

[Other Examples]
(1) In addition to using the operation wire 65 as described above, a push-pull rod or a link mechanism may be used as a linkage member that interlocks and connects the relay member 64 and the opening adjustment lever 66 outside the threshing device. it can.
(2) The present invention can also be applied to a combine equipped with a self-removing type threshing device that performs threshing processing while nipping and conveying a harvested crop with a feed chain.

Combine side view Overall plan view of combine Longitudinal side view of threshing device Side view of threshing device Side view showing the sheave case with the chaff sheave opening increased Side view of rear of sheave case Plan view showing interlocking connection structure of operation wires Front view of threshing device Side view of the sheave case with the chaff sheave opening reduced Front view showing upper part of threshing device and operation part Side view of the threshing device showing the extracted state of the chaff sheave

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Threshing apparatus 5 Operation part 24 Sorting part 25 Sheave case 28 Dust outlet 53 Chaff sheave 60 Actuating member 63 Operation wire 64 Relay member 65 Linking member (operation wire)
66 Opening adjustment tool

Claims (4)

In a combine configured to deploy a threshing device behind the operation unit and configured to extract the sheave case incorporated in the sorting unit of the threshing device from the dust outlet opened at the rear end of the threshing device,
The chiff sheave equipped in the sheave case is configured so that the opening can be adjusted, and the operating member for adjusting the opening of the chaff sheave and the opening adjusting operation tool provided in the vicinity of the operating unit are linked and connected. A combine, wherein a rear portion of the operation wire connected to the operating member is led to the dust outlet at a rear end of the threshing device, and the rear portion of the operation wire and the opening adjusting operation tool are interlocked and connected.   The rear part of the operation wire connected to the actuating member is connected to a relay member provided on a side plate of the threshing device, and the relay member and the opening adjusting operation tool are interlocked and connected by a linkage member arranged outside the threshing device. The combine according to claim 1.   The combine according to claim 2, wherein a rear portion of the operation wire is detachably connected to the relay member.   The combine according to claim 2 or 3, wherein the linking member is an operation wire.

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