JP6647795B2 - Threshing equipment - Google Patents

Description

  The present invention relates to a threshing device such as a combine.

  A swing sorter that swings and sorts the processed material leaked from the handling room through the receiving net is provided with a chaff sheave having a plurality of fins arranged in parallel in the front-rear direction, and the fin opening of the chaff sheave is set to There is known a threshing apparatus that automatically opens and closes according to the amount to improve sorting accuracy. For example, in the threshing apparatus described in Patent Literature 1, attention is focused on a transport rail (a transport rail of a threshing feed chain or a discharge chain) that moves up and down according to the amount of grain culm supplied to a handling room. The fin opening of the chaff sheave is automatically opened and closed in conjunction with the up and down movement of. According to such a threshing device, it is possible to automatically open and close the fin opening of the chaff sheave without providing an electric motor for opening and closing the fin opening of the chaff sheave and a layer thickness sensor for detecting the amount of processed material. become.

JP 2001-269048 A

  However, in this type of threshing device, when there is a large difference between the amount of cereal culm on the transport rail and the amount of processed material on the oscillating sorter, the scatter of grains outside the machine increases, and the sorting accuracy is reduced. There is a risk of lowering. For example, when the combine circulates, the processed material may remain on the swinging sorter even if there is no straw on the conveyor rail of the straw chain. The fin opening degree becomes a closed state, and there is a possibility that the scattering of grains outside the machine may increase. Further, in the case of a crop in which the yield of grains is larger than the volume of grain culm, the fin opening degree of the chaff sheave tends to be insufficient, and there is a possibility that the grains are scattered outside the machine. In addition, it is possible to prevent the grains from scattering outside the machine by increasing the fin opening of the chaff sheave, but in this case, there is a possibility that the sorting accuracy may be significantly reduced.

The present invention has been made to solve these problems in view of the above-described circumstances, and the invention according to claim 1 is capable of moving up and down according to the amount of cereal culm supplied to a handling room. Sorter for swinging and sorting the processed material leaked from the handling chamber through the receiving net, and a chaff sheave having a plurality of fins provided on the swing sorter and arranged in parallel in the front-rear direction A threshing apparatus comprising: a Karamin that raises a sorting wind below the oscillating sorter; and a first thing collection unit that collects the first thing that has leaked between the fins of the chaff sheave. The chaff sheave facing the material collection section is divided into a front chaff sheave and a rear chaff sheave. Maintain the specified fin opening without interlocking In threshing apparatus configured to, and a second opening adjusting means for manually adjusting the first opening adjusting means for manually adjusting the fin angle of the rear chaff sieve standards fin opening of the front chaff sieve, The first opening adjustment means and the second opening adjustment means can be operated from a single maintenance window, and the second opening adjustment means is maintained only when the swing sorting body is at a predetermined swing position. A threshing apparatus characterized by being visible from a window .
The invention according to claim 2 is a first flow plate that extends obliquely downward and forward from below the rear end of the chaff sheave and guides the first thing leaking from between the fins of the chaff sheave to the first thing collection part; A wind direction plate which is disposed at a lower part in the front-rear direction and is inclined in a front-low direction and a high position, and guides the sorted wind generated by Karino upward, and an upper extension line of the wind direction plate and a first flow plate The threshing apparatus according to claim 1, wherein a rear chief sheave is disposed between the front chief sheave and an upper extension of the wind direction plate.
The invention according to claim 3 is characterized in that the predetermined swinging position at which the adjustment operation position of the second opening degree adjusting means is visible from the maintenance window is when the swing sorting body is located at the bottom dead center. The threshing apparatus according to claim 1 or 2, wherein
The invention according to claim 4 is characterized in that, when the swing sorting body is located at the bottom dead center, the adjustment operation of the second opening adjustment means can be performed through the maintenance window . Threshing device.

According to the invention of claim 1, among the front and rear divided chaff sheaves, the front chaff sheave automatically opens and closes the fin opening in conjunction with the vertical movement of the transport rail, but the rear chief sheave moves vertically along the transport rail. Since the predetermined fin opening is maintained without interlocking with the movement, it is possible to prevent the grains from scattering outside the machine by the rear chaff sheave while securing the sorting accuracy by the front chaff sheave. For example, even if there is no straw on the conveyor rail of the straw chain, such as when the combine circulates, the processed material remains linked to the vertical movement of the conveyor rail if there is any processed material left on the swing sorting body. Although the fin opening of the front chaff sheave tends to be closed, the fin opening of the rear chaff sheave can be maintained in the open state, so that the grain can be prevented from flying outside the machine. In addition, in the case of a crop having a high grain yield compared to the volume of the culm, the fin opening of the rear chaff sheave is kept open even if the fin opening of the front chaff sieve is constantly becoming insufficient. This can prevent the grains from scattering outside the machine.
According to the second aspect of the present invention, the front chaff sheave, which is automatically opened and closed in conjunction with the vertical movement of the transport rail, is arranged in an area where the sorting wind is positively guided by the wind direction plate. It is possible to improve the sorting accuracy and suppress a decrease in the sorting accuracy caused by fixing the fin opening of the rear chaff sheave.

It is a left view of a combine. It is a side view which shows the inside of a threshing part. It is a side view of a rocking sorting body. It is a principal part side view of a rocking sorting body. (A) is an explanatory view showing a state in which the maintenance window is closed, (B) is an explanatory view showing a state in which the swing sorting body is at the bottom dead center and the maintenance window is open, and (C) is a swing sorting body. Is an explanatory view showing a state in which the maintenance window is open other than the bottom dead center and the maintenance window is open.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a self-detachable combine, which is a pre-processing unit 2 for cutting stem culms and a threshing unit 3 (threshing device) for threshing and selecting grains from the cut culms. ), A post-processing unit 4 for post-processing threshed waste straw, a grain tank 5 for storing the selected grains, and a discharge auger 6 for carrying out the grains in the grain tank 5 outside the machine. , A driving unit 7 on which an operator gets on, and a crawler type traveling unit 8.

  As shown in FIG. 2, the threshing unit 3 includes a threshing feed chain 10 that transports the culm along the handling room 9, a straw chain 11 that transports threshed waste to the post-processing unit 4, and a handling room. 9, a handling drum 12 rotatably mounted in the interior, a receiving net 13 that leaks the processed material that the handling cylinder 12 has pulled down from the grain stalk, and a swing that swings and sorts the processed material that has leaked from the receiving net 13. The sorting body 14, the Karamin 15 that generates a sorting wind below the front of the swinging sorting body 14, the first thing collecting section 16 that collects the first thing, and the first thing that the first thing collecting section 16 collects. A frying cylinder (not shown) for lifting and conveying the material in the grain tank 5, a second product recovery unit 17 for recovering the second product, and swinging the second product recovered by the second product recovery unit 17. And a second reduction cylinder 18 for reduction on the sorting body 14.

  Above the threshing feed chain 10 and below the straw chain 11, transfer rails 20, 21 for holding the grain culm or straw between the chains 10 and 11 are arranged in parallel. Since the transport rails 20 and 21 are both vertically movable and urged toward the chains 10 and 11 by the rams 20a and 21a, the transport rails 20 and 21 are vertically moved according to the amount of grain culm supplied to the handling room 9. Will move.

  The oscillating sorter 14 includes an oscillating flow plate 22 that sequentially conveys the processed material leaked from the handling room 9 through the receiving net 13 to the rear, and sorts the processed material behind the oscillating flow plate 22 (specific gravity). (A complex sort including sorting, wind sorting, and sieve sorting), a chaff sieve 23, a grain sieve 24 that sieves the processed material leaked from the chaff sieve 23 with a net member, and a stroracks 25 disposed behind the chaff sieve 23. A first flow plate 26 that extends obliquely downward and forward from the rear end of the chaff sheave 23 and guides the first thing leaking from the chaff sheave 23 to the first object recovery unit 16; A second flow plate 27 that extends obliquely downward and forward from the lower part and guides the second thing leaking from the straw rack 25 to the second thing collection unit 17, and a wind direction that guides the sorting wind generated by Karino 15 And a plate 28. A Nburi, while being swingably supported in the sorting chamber 29 and is swung by an unillustrated driving mechanism.

  The wind direction plate 28 is arranged at a lower portion in the front-rear direction of the chaff sheave 23 and the Glen sheave 24 so as to be inclined in a front-rear and rear-height manner, and guides the sorted wind generated by the Karin 15 toward the upper chaff sheave 23. Thereby, the efficiency of wind sorting in the chaff sheave 23 and the like is improved.

  The chaff sheave 23 includes a plurality of fins 30 arranged side by side at predetermined intervals in the front-rear direction. The fins 30 are inclined in a front-low and high-rear manner. The fins 30 are caused to leak through the gaps between the fins 30 while transferring the processed material backward with the swing of the swing sorting body 14. In the threshing unit 3 of the combine 1 according to the embodiment of the present invention, the chaff sheave 23 facing the first material collection unit 16 is divided into a front chaff sheave 31 and a rear chaff sheave 32. Specifically, of the nine fins 30 constituting the chaff sheave 23, the front chaff sheave 31 is constituted by the front five fins 30, and the rear chaff sheave 32 is constituted by the four rear fins 30.

  The fins 30 of the front chaff sheave 31 are connected to the transfer rail 21 of the straw chain 11 via an interlocking mechanism 33 which will be described later, and the fin opening (the interval between the fins 30) is linked with the vertical movement of the transfer rail 21. It is configured to open and close automatically. Specifically, in a situation where the amount of grain stalks is large, that is, in a situation where the amount of processed material in the sorting room 29 is large, the fins of the front chaff sheave 31 are interlocked with the downward movement of the transport rail 21 in accordance with the increase in the amount of straw. In the situation where the opening is automatically adjusted to the opening side and the amount of grain culm is small, that is, the amount of the processed material in the sorting room 29 is small, it is linked to the upward movement of the transport rail 21 according to the decrease in the amount of straw. The fin opening of the front side chief sheave 31 is automatically adjusted to the closing side.

  On the other hand, the fins 30 of the rear chaff sheave 32 are configured to maintain a predetermined fin opening degree without interlocking with the vertical movement of the transport rail 21. Specifically, the fin 30 of the rear chaff sheave 32 is fixed at a position that is wider than the reference fin opening of the front chaff sheave 31 (fin opening when there is no straw). According to such a configuration, it is possible to prevent the kernels from scattering outside the machine with the rear chaff sheave 32 while ensuring the sorting accuracy with the front chaff sheave 31. For example, even when there is no straw on the transport rail 21 of the straw chain 11 such as when the combine 1 circulates in the body, in the situation where the processed material remains on the swinging sorting body 14, the transport rail 21 Although the fin opening of the front chaff sheave 31 tends to close in conjunction with the vertical movement, the fin opening of the rear chaff sheave 32 can be kept open, so that the grains can be prevented from scattering outside the machine. Further, in the case of a crop in which the yield of grains is large compared to the volume of the culm, even if the fin opening of the front chaff sheave 31 is always slightly insufficient, the fin opening of the rear chaff sheave 32 is open. By maintaining, it is possible to prevent the grains from scattering outside the machine.

  In splitting the chaff sheave 23 back and forth, the rear chaff sheave 32 is disposed between an upper extension line of the wind direction plate 28 and an upper extension line of the first flow plate 26, and the front chaff sheave 31 is It is preferable to arrange it ahead of the upper extension line. The reason is that the front chaff sheave 31, which is automatically opened and closed in conjunction with the vertical movement of the transport rail 21, is disposed in an area where the sorting wind is actively guided by the wind direction plate 28, so that the sorting in the front chaff sheave 31 is performed. This is because the accuracy is improved, and a decrease in the sorting accuracy due to the fixed fin opening of the rear side chief sheave 32 is suppressed.

  A gap 33 through which the sorting wind blows is formed between the rear end of the Glen sheave 24 and the upper end of the first flow plate 26, and the rear chaff sheave 32 is located above the gap 33. It is preferable that the gap formed between the fins 30 of the side chaff sheave 32 is arranged so as not to be directly above the gap 33. The reason is that it is possible to reduce the possibility that the processed material leaked from the gap between the fins 30 of the rear chaff sheave 32 directly intrudes into the most material collecting section 16 through the gap 33, and can suppress a decrease in sorting accuracy. It is.

  Hereinafter, the fin opening adjustment structure (including automatic adjustment and manual adjustment) of the chaff sheave 23 and the structure of the interlocking mechanism 33 will be described with reference to FIGS.

  The angle of the plurality of fins 30 constituting the chaff sheave 23 can be automatically and / or manually adjusted. For example, the fin 30 of the present embodiment includes an upper pin 34 protruding from both left and right ends thereof; At least a lower pin 35 protruding from the left end is provided, and the upper pin 34 is rotatably supported by the left and right side plates 36 of the swing sorting body 14. Thus, the fin 30 can change the front-back inclination angle based on the rotation about the upper pin 34 as a fulcrum.

  The lower pin 35 protrudes to the outer surface side of the side plate 36 via a long hole 36 a formed in the side plate 36 of the swing sorting body 14. The long hole 36a has an arc shape centered on the rotation fulcrum of the fin 30, and the rotation of the fin 30 is allowed within that range. Among the plurality of fins 30 constituting the chaff sheave 23, the five front fins 30 constituting the front chaff sheave 31 are connected via a front connection member 37 rotatably connected to the lower pin 35, and The front fins 30 constituting the rear chaff sheave 32 are rotatably coupled to the lower pin 35 while the rear chaff sheave 32 is rotatably coupled to the rear coupling member 38. And is rotated in conjunction with the forward and backward movement of the rear connecting member 38.

  The front connecting member 37 is connected to the transport rail 21 of the straw chain 11 via the interlocking mechanism 33 described above. The interlocking mechanism 33 is provided on the side plate 36 so as to be rotatable back and forth, and the front end of the front side connecting member 37 is rotatably coupled to the turning arm 39. And an outer tube 43 routed between the chaff sheave-side outer receiver 41 and the transfer rail-side outer receiver 42, inserted into the outer tube 43, and conveyed to the rotating arm 39. An inner wire 44 connecting the rail 21 is provided. When there is no straw between the straw chain 11 and the transport rail 21, the rotating arm 39 is pulled forward by the urging force of the armature 40, and the fin 30 of the front chaff sheave 31 opens the reference fin. Although the degree is maintained, when the amount of straw between the straw chain 11 and the transport rail 21 increases, the inner wire 44 rotates against the urging force of the bullet 40 as the transport rail 21 moves downward. The moving arm 39 is pulled backward. Thus, the fin 30 of the front chaff sheave 31 automatically adjusts the fin opening (front-back inclination angle) in accordance with the amount of straw.

  The reference fin opening of the front chaff sheave 31 can be manually adjusted by the first opening adjusting means 45. The first opening adjustment means 45 of the present embodiment is configured by using the chief sheave side outer receiver 41, and gradually changes the reference fin opening of the front side chief sheave 31 based on the position change of the chief sheave side outer receiver 41. It is designed to switch. More specifically, the upper end of the chaff sheave side outer receiver 41 is supported by the side plate 36 so as to be able to rotate back and forth, while the lower end of the chaff sheave side outer receiver 41 is formed by an engagement hole 36 b formed in the side plate 36. Engaged and held. The plurality of engagement holes 36b are formed at predetermined intervals in the front-rear direction (five in this embodiment), and the position of the chief sheave side outer receiver 41 is determined based on the selective switching of these engagement holes 36b. Is changed, the reference fin opening of the front side chief sheave 31 is switched stepwise.

  The rear connecting member 38 is fixed to the side plate 36 via second opening adjusting means 46 for manually adjusting the fin opening of the rear chief sheave 32. The second opening adjusting means 46 includes an adjusting arm 47 having an upper end portion rotatably supported by the side plate 36 and a middle portion connected to the rear connecting member 38 (or the lower pin 35). An adjusting screw 48 fastened to the side plate 36 through a long hole 47a formed at the lower end of the arm 47 is provided. In other words, when the adjusting screw 48 is loosened, the fin opening of the rear chief sheave 32 can be manually adjusted based on the operation of rotating the adjusting arm 47 back and forth. 32 fins 30 are fixed at a desired angle.

  As shown in FIG. 5, a maintenance window 3 a facing the side of the swing sorting body 14 is formed on the outer surface of the threshing unit 3. Normally, as shown in FIG. 5A, the maintenance window 3a is closed by a removable cover 49, but as shown in FIG. The first opening adjustment means 45 and the second opening adjustment means 46 can be viewed and operated through the window 3a. More specifically, the lower end of the chief sheave side outer receptacle 41 and the plurality of engagement holes 36b constituting the first opening degree adjusting means 45 can be viewed through the maintenance window 3a. In addition to confirming the degree, the reference fin opening of the front chaff sheave 31 can be manually adjusted based on the change in the position of the outer chief sheave receiver 41.

  Further, since the lower end of the adjusting arm 47 and the adjusting screw 48 constituting the second opening adjusting means 46 can be visually observed through the maintenance window 3a, the current fin opening of the rear chief sheave 32 can be confirmed, and the adjusting arm can be checked. The fin opening of the rear chief sheave 32 can be manually adjusted based on the position change of the position 47. However, in the rear chaff sheave 32, when the fin opening is erroneously adjusted, there is a possibility that the grain is scattered outside the machine. Therefore, it is preferable to provide a means for suppressing the erroneous adjustment. Therefore, in the present embodiment, the adjustment operation position of the second opening adjustment means 46 is made visible from the maintenance window 3a only when the swing sorting body 14 is at the predetermined swing position. For example, as shown in FIG. 5 (B), when the swing sorting body 14 is located at the bottom dead center, the adjustment operation position of the second opening adjustment means 46 can be visually and operably controlled via the maintenance window 3a. However, as shown in FIG. 5 (C), when the swing sorting body 14 is located at a position other than the bottom dead center, visual observation and operation of the second opening adjustment means 46 become impossible. Thereby, erroneous adjustment by a user who does not have sufficient maintenance knowledge is suppressed.

  According to the present embodiment configured as described above, the transport rail 21 that moves up and down according to the amount of grain culm supplied to the handling room 9, and the processed material that has leaked from the handling room 9 via the receiving net 13. Sorter 14 for swinging and sorting, a chaff sheave 23 provided on the swing sorter 14 and having a plurality of fins 30 arranged in parallel in the front-rear direction, and a sorting wind generated below the swing sorter 14. A combine 1 including a windy Karamin 15 and a first thing collecting part 16 for collecting the first thing leaking from between the fins 30 of the chaff sheave 23, wherein the chief sheave 23 facing the first thing collecting part 16 is located on the front side. The chaff sheave 31 is divided into a chaff sheave 31 and a rear chaff sheave 32. The front chaff sheave 31 automatically opens and closes the fin opening in conjunction with the vertical movement of the transfer rail 21, and the rear chaff sheave 32 links with the vertical movement of the transfer rail 21. Without having to Because maintaining the opening, while ensuring sorting accuracy front chaff sieve 31, in the rear chaff sieve 32 can be prevented outside scattering of grain.

  A first flow plate 26 that extends obliquely downward and forward from the rear end portion of the chaff sheave 23 and guides the first thing leaking from between the fins 30 of the chaff sheave 23 to the first thing collection unit 16, A wind direction plate 28 which is arranged obliquely in a front low and rear high position below the front-rear direction intermediate portion, and guides the sorted wind generated by Karino 15 upward, and an upper extension line of the wind direction plate 28 The rear chief sheave 32 is arranged between the upper extension line of the flow plate 26 and the front chief sheave 31 is arranged ahead of the upper extension line of the wind direction plate 28. The front chaff sheave 31, which is automatically opened and closed, is arranged in an area where the sorting wind is positively guided by the wind direction plate 28. As a result, the sorting accuracy in the front chaff sheave 31 is improved, and the rear chaff sheave 31 is improved. The reduction of the sorting accuracy by fixing the second fin opening can be suppressed.

  The first opening adjustment means 45 for manually adjusting the reference fin opening of the front side chief sheave 31 and the second opening adjustment means 46 for manually adjusting the fin opening of the rear chaff sheave 32 are provided. Since the degree adjusting means 45 and the second opening degree adjusting means 46 can be operated from the single maintenance window 3a, the crop adaptability can be adjusted by manually adjusting the reference fin opening degree of the front chaff sheave 31 and the fin opening degree of the rear chaff sheave 32. Not only is improved, but also the reference fin opening of the front chaff sheave 31 and the fin opening of the rear chaff sheave 32 can be adjusted from a single maintenance window 3a, so that the maintainability can be improved.

  In addition, the second opening adjustment means 46 can be viewed from the maintenance window 3a only when the swing sorting body 14 is at the predetermined swing position, so that the wrong fin opening adjustment of the rear side chief sheave 32 is suppressed. In addition, it is possible to prevent the grains from scattering outside the machine due to incorrect adjustment.

REFERENCE SIGNS LIST 1 Combine 3 Threshing section 3 a Maintenance window 9 Handling room 10 Threshing feed chain 11 Waste straw chain 12 Handling cylinder 13 Receiving net 14 Swing sorting body 15 Karamin 16 First thing collection unit 20 Transport rail 21 Transport rail 23 Chaff sheave 26 First flow Plate 28 wind direction plate 30 fin 31 front chief sheave 32 rear chief sheave 33 interlocking mechanism 45 first opening adjustment means 46 second opening adjustment means

Claims (4)

A transport rail that moves up and down according to the amount of grain culm supplied to the handling room,
An oscillating sorter that oscillates and sorts the processed material leaked from the handling room via the receiving net;
A chaff sheave provided on the swing sorting body and having a plurality of fins arranged in parallel in the front-rear direction;
Karamin breeds a sorting wind below the rocking sorting body,
A threshing device comprising: a first thing collecting unit that collects the first thing leaking from between the fins of the chaff sheave,
The chaff sheave facing the first object recovery section is divided into a front chaff sheave and a rear chaff sheave, and the front chaff sheave automatically opens and closes the fin opening in conjunction with the vertical movement of the conveyance rail. In a threshing device configured to maintain a predetermined fin opening degree without interlocking with vertical movement of
First opening adjustment means for manually adjusting the reference fin opening of the front side chaff sheave;
Second opening adjustment means for manually adjusting the fin opening of the rear side chief sheave,
The first opening adjustment means and the second opening adjustment means can be operated from a single maintenance window,
The threshing device, wherein the second opening adjustment means is visible from the maintenance window only when the swing sorting body is at a predetermined swing position . The first flow plate that extends obliquely downward and forward from the rear end of the chaff sheave below and guides the first thing leaking from between the fins of the chaff sheave to the first thing collection unit,
A wind direction plate that is arranged in a slanting manner at the front and rear lower heights below the middle part in the front-rear direction of the chaff sheave and guides the sorted wind generated by Karino upwards,
A rear chief sheave is disposed between an upper extension line of the wind direction plate and an upper extension line of the first flow plate, and a front chief sheave is disposed forward of the upper extension line of the wind direction plate. The threshing apparatus according to claim 1. The predetermined swinging position at which the adjustment operation position of the second opening degree adjusting means can be viewed from a maintenance window is when the swing sorting body is located at a bottom dead center. A threshing apparatus according to item 1. 4. The threshing apparatus according to claim 3, wherein when the swing sorter is located at the bottom dead center, an adjustment operation of the second opening adjustment means can be performed through the maintenance window . 5.

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