JP5792540B2 - Sorting unit for threshing equipment - Google Patents

Description

  The present invention is provided with a glenshave for leaking and sorting grains in a rocking and sorting mechanism that performs sorting processing while rocking and transferring the threshing product, and the glenshave is supported by a frame body that surrounds the outer periphery and the frame body. The present invention relates to a sorting unit for a threshing device that is configured to include a porous member for grain leakage.

  In the conventional threshing device, the grain sieve has the same size as a porous member for grain leakage supported by the frame body and continuously connected over the entire leakage region surrounded by the frame body. It is configured to include one porous member in which a transmission hole is formed and fixed integrally with the frame (see, for example, Patent Document 1).

JP 2009-95287 A

  In the above-mentioned conventional configuration, since the single porous member having the same size of transmission holes formed over the entire area and the frame are integrally fixed, for example, the porous shape in which larger transmission holes are formed Different types of grain sheaves are prepared and harvested in advance, such as a glen sieve in which the member is integrally fixed to the frame, or a glen sieve in which a porous member having a small permeation hole is integrally fixed to the frame. Depending on the difference in the working conditions such as the type of the target crop, the grain sieve is replaced with a through hole having a size suitable for the working condition.

  For example, in working conditions that increase the amount of threshing processed product, it is possible to efficiently perform the grain leakage treatment by using a grain sieve provided with a porous member formed with a large permeation hole, In working conditions where the amount of processed threshing is not so large, the grain sieve with a porous member with small permeation holes is used, so that the selected grain is not easily mixed with fine straw debris. Can be done.

  However, when using a grain sieve having a porous member in which large permeation holes are formed, since large permeation holes are formed over the entire leakage region, the grain leakage selection process is Although it can be performed satisfactorily, straw scraps are likely to leak through a large permeation hole, and there is a disadvantage that a lot of straw scraps are mixed in the recovered grains.

  In addition, when using a grain sieve provided with a porous member in which smaller permeation holes are formed, since smaller permeation holes are formed over the entire leakage region, straw scraps are difficult to leak, There is no disadvantage that lots of straw scraps are mixed in the recovered grain, but when the amount of straw scraps is large, straw scraps are transferred to the lower end of the processed product transfer direction and the grains are porous. Grain waste is transferred to the lower end of the processed material transfer direction without leaking the material, and the amount of grain discharged to the outside together with the waste waste increases, and there are many grains that should be collected outside. There is a disadvantage that it is discharged and lost.

  Moreover, in the above-described conventional configuration, since it is necessary to prepare different types of grain sieves in which the frame body and the porous member are integrally fixed, there is a disadvantage incurring higher costs. There was room for.

  The purpose of the present invention is to improve the structure of the Glen sieve, and while it is possible to perform the sorting operation in an appropriate state even if the working conditions are different, the threshing that can reduce the cost by simplifying the structure The point is to provide a sorting unit for the apparatus.

The sorting unit for the threshing apparatus according to the present invention is provided with a glenshave for separating and sorting the grains in a rocking sorting mechanism that performs sorting processing while rocking and transferring the threshing product, and the glenshave is a frame that surrounds the outer peripheral part. And a porous member for grain leakage supported by the frame body, wherein the frame body is divided along the workpiece transfer direction. Each of the leakage action areas is provided with the porous member so as to be attachable and detachable, and the Glen sheave is configured , and among the plurality of leakage action areas, at least the most in the workpiece transfer direction. A shielding member for preventing leakage of the processed material is detachably provided in the leaking action region on the upper side, and the porous member is supported in a state of being positioned above the frame body, and the shielding member is Be prepared to be located below the frame Are located in the points are.

  According to the first characteristic configuration, the frame body includes a plurality of leakage action regions that are divided along the workpiece transfer direction, and the porous member is detachably supported in each of the leakage action regions. Since the grain sieve is configured in preparation for the state, it becomes possible to perform the sorting operation in an appropriate state according to the difference in the working conditions.

If explanation is added, the following different work forms can be taken according to the difference of work conditions.
For example, if the total amount of threshing processed material is large and the ratio of straw waste is small relative to the amount of grain, the leakage action area on the upper side of the processed material transfer direction and the lower side of the processed material transfer direction By adopting an operation mode in which a porous member having a large permeation hole is attached to each of the leakage action regions, the grain leakage process can be performed efficiently.

  If the total amount of threshing processed material is large and the ratio of straw scraps is large relative to the amount of kernels, a small permeation hole was formed in the leakage action area on the upper side of the processed material transfer direction. Leakage on the upper side of the workpiece transfer direction by adopting a work mode in which a porous member is mounted and a porous member with a large permeation hole is formed in the leakage action area on the lower side of the workpiece transfer direction. Even if a large amount of threshing product is supplied to the working region, since the porous member in which small permeation holes are formed is provided, straw scraps are hardly mixed into the recovered grain. In the leakage action area on the lower side of the processed product transfer direction, the processed threshing product is leveled by rocking transfer, so the grain is wasted while avoiding the leakage of straw by the porous member with a large permeation hole. Can be recovered without any problems.

  If the total amount of processed threshing is small and the ratio of straw scraps to the amount of grain is not so high, the leakage action area on the upper side of the processed product transfer direction and the lower side of the processed product transfer direction By adopting a work mode in which a porous member with a small permeation hole is installed in each of the leakage action areas, it is possible to efficiently carry out the grain leakage process, and to mix straw scraps. It can be suppressed.

  In this way, it is possible to select a work mode in which an appropriate grain leakage process state is obtained according to the difference in work conditions at that time. That is, even if the work conditions are different, it is possible to perform the sorting work in an appropriate state by using a grain sieve having a work form suitable for the work conditions.

  Further, since each porous action region is provided with a porous member detachably supported, it is only necessary to replace the porous member while sharing the frame. It is only necessary to prepare a plurality of porous members while sharing the body as it is, and it is possible to keep the cost burden on the user low compared to the case where a plurality of types of Glen sheaves integrally including a frame and a porous member are prepared. It becomes possible.

Therefore, by improving the structure of the Glen sieve, it is possible to perform the sorting operation in an appropriate state even if the working conditions are different, but it is possible to keep the cost burden low. I was able to provide.
In addition, according to the first feature configuration, a larger amount of debris is generated in the upper side leakage action region, particularly in the uppermost side leakage action region, as compared to the lower side leakage action region. Although it is easy, especially under working conditions where the amount of processed threshing is small, by attaching a shielding member to the leakage action area on the upper side in the processed product transfer direction, the straw scraps are applied to the grain. While making it possible to avoid mixing appropriately, it is possible to appropriately cause the grain to leak in the leakage action region on the lower side in the processed product transfer direction. Therefore, it is possible to perform a sorting operation in an appropriate state using a grain sieve suitable for the working condition under a working condition in which the amount of the threshing processed product is small.
The second characteristic configuration of the present invention includes, in addition to the first characteristic configuration, a guide member that supports the Glen sheave from below, and the shielding member is provided in a state of being positioned below the guide member. It is in.
According to a third characteristic configuration of the present invention, in addition to the second characteristic configuration, the shielding member is slidably supported along the lower surface of the guide member and is slidably supported along the workpiece transfer direction. The position change is adjustable.
In addition to the third feature configuration, the fourth feature configuration of the present invention is provided with a support member that supports a boundary between the porous member on the uppermost side in the processing material transfer direction and the porous member adjacent thereto, The support member is formed such that a vertical wall portion that restricts the position change of the shielding member toward the lower side in the workpiece transfer direction extends downward.

In addition to any of the first to fourth feature configurations , the fifth feature configuration of the present invention includes the leakage action region provided on the upper side of the leakage action region in the workpiece transfer direction. The perforation hole of the porous member is set to be smaller than the permeation hole of the porous member provided in the leaking action region on the lower side in the processed product transfer direction.

According to the fifth feature configuration, when the amount of processed threshing is large, the leakage of the grain is caused by mounting the porous member in which the large permeation hole is formed in the leakage action region on the lower side in the processed product transfer direction. A small permeation hole is formed in the leaking action area on the upper side of the processed product transfer direction, where a large amount of processed threshing is likely to leak due to the threshing treatment, and there is a high risk that there will be a large amount of bran waste, while allowing the selection to be performed satisfactorily. By mounting the formed porous member, it becomes easy to suppress mixing of straw scraps into the grain.

  Therefore, it is possible to perform a sorting operation in an appropriate state using a grain sieve suitable for the working condition under a working condition in which the amount of the threshing processed product is large.

According to a sixth feature configuration of the present invention, in addition to any one of the first feature configuration to the fifth feature configuration, a support member that supports a boundary between the plurality of porous members is provided on both side frame portions of the frame body. It is in the point where it is provided in a state where it is installed and supported.

According to the sixth characteristic configuration, each of the porous members that are individually attached to the plurality of leakage action regions can be supported by the support member that supports the boundary between the plurality of porous members, and the plurality of porous members The edge of the porous member at the boundary between the shaped members can be stably supported by the frame.

  As a result, for example, there is no disadvantage that the edge of the porous member vibrates in an unstable state, and the sorting operation can be performed in an appropriate state.

The seventh feature configuration of the present invention, in addition to any one of the first feature configuration to the sixth feature configuration, as the leakage action region, an upper side leakage action region located on the upper side in the processed product transfer direction, Two lower side leakage action regions located on the lower side of the processed product transfer direction are formed, and the width of the upper side leakage action region along the processed product transfer direction is equal to that of the lower side leakage action region. It exists in the point formed so that it may become shorter than the width | variety along a processed material transfer direction.

According to the seventh characteristic configuration, the width along the processed product transfer direction of the upper side leakage action region is shorter than the width along the processed product transfer direction of the lower side leakage action region. If the working condition is a small amount, the porous member having a permeation hole of a size suitable for the working condition is attached to the lower side leakage action region having a long length along the workpiece transfer direction. The grain can be appropriately leaked in the leakage action region on the lower side in the processed product transfer direction. At this time, a porous member having a small permeation hole compared to a permeation hole having a size suitable for the working conditions is attached to the upper side leakage action region having a short width along the treatment product transfer direction, or It can be set in a state in which it is easy to avoid the mixing of the cut straw into the grain with the shielding member.

  In addition, if the amount of threshing product is a large amount of work conditions, not only the lower side leakage action region but also the upper leakage side of the treatment product transfer direction has a size suitable for the work condition. By attaching the porous member provided with the holes, it is possible to improve the leakage performance of the grains and reduce the grains discharged to the outside together with the straw scraps.

  Thus, although it is the simple structure of forming two leaky action areas as the leaky action area, it is possible to perform the sorting work in an appropriate state even if the work conditions are different.

It is a whole side view of a combine. It is a vertical side view of a threshing apparatus. It is a vertical side view of a grain sieve mounting part. It is a vertical front view of a glen sieve installation part. It is a top view of a Glen sieve. It is a disassembled perspective view of a Glen sieve. It is a rear view of a conveying conveyor. It is the VIII-VIII sectional view taken on the line of FIG. It is the IX-IX sectional view taken on the line of FIG. It is a side view of a conveying conveyor. It is a rear view of the upper part of the 2nd reduction conveyance apparatus. It is the XII-XII sectional view taken on the line of FIG. It is a side view of the lower part of the 2nd return conveyance apparatus. It is the XIV-XIV sectional view taken on the line of FIG. It is a partially cutaway top view of a drive mechanism. It is a partially cutaway front view of No. 2 Karatsu.

Hereinafter, an embodiment in which the present invention is applied to a normal type (whole type) combine will be described with reference to the drawings.
As shown in FIG. 1, the ordinary combine is equipped with a cutting and conveying device 2 that harvests and conveys a grain culm to be harvested as the traveling vehicle body 1 travels, and can be moved up and down at the front of the traveling vehicle body 1. A threshing device 3 that performs a handling process on the harvested cereal mash from the reaping and conveying apparatus 2 and performs a sorting process on a threshing product obtained by the handling process, and a single grain obtained by the handling process and the sorting process by the threshing apparatus 3 A bagging device 4 that stores grains and can be packed in a bag is mounted on the traveling vehicle body 1.

The traveling vehicle body 1 includes a pair of left and right crawler traveling devices 6 at the lower part of the vehicle body frame 5, and a riding operation unit 7 in the front right side region of the vehicle body frame 5.
As the traveling vehicle body 1 travels, the harvesting and conveying device 2 separates the unharvested cereals into the harvested cereals and the unharvested cereals by the dividers 8 provided at the left and right ends of the front part thereof. The tip of the harvested culm is scraped backward by a rotating reel 9 arranged at the upper front of the transport device 2, and the stock of the harvested culm is harvested by the clipper-type cutting mechanism 10 provided at the bottom of the harvesting and transport device 2. It is configured to cut the side and capture the harvested cereal. Then, the harvested grain culm that is the harvest target grain culm is gathered to a predetermined position in the left-right direction by a screw-conveying auger 11 provided behind the cutting mechanism 10 and sent backward, and the threshing device 3 is extended from the predetermined position. The threshing apparatus 3 is configured to be fed and transported by the scraping and transporting feeder 12 installed in this manner.

  As shown in FIG. 1, the left side of the threshing device 3 is equipped with each of a plurality of covers 13 to 16 so that it can be opened and closed, and can be configured to facilitate maintenance work of the threshing device 3. Has been.

  As shown in FIG. 2, the threshing device 3 includes a threshing unit 17 that performs a handling process on the harvested cereal straw supplied by the feeder 12 in the upper part, and a threshing target to be obtained obtained by the handling process in the threshing part 17 on the lower side. A sorting unit 18 that performs a sorting process on the processed product, and a collection unit 19 that collects the threshing processed product to be collected obtained by the sorting process are provided. In the lower part of the rear end of the threshing device 3, shredded cereals that have flowed out of the throating port 20 of the threshing unit 17 in accordance with the handling process or long straw scraps carried out to the rear of the oscillating sorting mechanism 21 by the sorting process are shredded. Then, a shredding device 22 that discharges to the outside of the machine is provided.

  The threshing unit 17 is a bar-type handling cylinder 25 that performs a handling process on the harvested cereal meal from the cutting and conveying device 2 by rotating around the handling cylinder shaft 24 in the front-rear direction inside the handling chamber 23, and below And a receiving net 26 having a U-shape when viewed in the front-rear direction. In the upper cover 27 of the handling chamber 23, the harvested cereals and the threshing products that have moved to the upper portion of the handling chamber 23 as the handling barrel 25 rotates around the handling shaft 24 are guided to the rear of the vehicle body. A plurality of dust delivery valves 28 are provided in a state where they are arranged at a set interval in the front-rear direction.

  The sorting unit 18 swings and sorts the threshing processed material leaked from the receiving net 26 toward the rear side of the machine body, and supplies the sorting wind for fine sorting to the swing sorting mechanism 21. It comprises a Chinese tang 29, a secondary Chinese tang 30 that supplies a sorting air for rough sorting to the swinging sorting mechanism 21, and a second Chinese potato 31 that supplies a sorting wind for sorting the second item to the swing sorting mechanism 21. Has been. In other words, in this embodiment, the longitudinal direction of the machine corresponds to the workpiece transfer direction.

  The collection unit 19 collects, as the first item, the single-grained grain that has flowed down from the front side of the swing sorting mechanism 21 and flows down while receiving the sorting wind from the tang 29, below the swing sorting mechanism 21. No. 1 recovery unit 32 and No. 2 recovery that recovers grains with branches and branches that flow down while receiving the sorting wind from No. 2 Kara 31 after leaking from the rear side of the swing sorting mechanism 21 The part 33 is arranged and arranged in a state of being lined up in the order.

  The first collecting unit 32 is provided with a first conveying screw 34 for conveying the collected first item to one side in the left-right direction, and the first conveying screw 34 is conveyed to the conveying terminal portion of the first conveying screw 34. A bucket-type transporting conveyor 35 for transporting the first product to the upper part of the bagging device 4 is linked and connected.

  As shown in FIG. 7, the lifting conveyor 35 is provided at a position spaced apart from the right side wall 37 of the threshing device 3 by a predetermined distance in order to avoid interference with the second reducing transport device 36 described later. The conveying screw 34 protrudes outward from the side wall 37 of the threshing device 3 and includes a relay conveying unit 38.

  As shown in FIGS. 7 and 8, an inspection opening 40 is formed in the cylindrical outer tube portion 39 of the relay conveyance unit 38 over substantially a half circumference of the outer tube portion 39 to cover the opening 40. A lid 41 is detachably mounted. The lid body 41 is formed in a semi-cylindrical shape so as to form a semi-circular portion of the cylindrical outer cylinder portion 39, and an engagement portion 42 formed at the lower end portion thereof is formed on the outer cylinder portion 39. In a state of being engaged with the engaging portion 43, it is configured to be fastened and fixed with a butterfly bolt 44 in a closed posture in which the opening 40 is closed. That is, the operator can open the lid body 41 by manually removing the butterfly bolt 44 without using a tool.

  As shown in FIG. 7, an inspection opening 45a is formed on the outer peripheral surface on the bottom side of the lower case 45 at the transport start end of the lifting conveyor 35. As shown in FIGS. 7, 9, and 10, the opening 45a A lid 46 is attached so as to be removable. Both ends of the lid body 46 are detachably attached to the lower case 45 by buckle mechanisms 48, respectively.

  As shown in FIG. 9, an inspection opening 45 b is formed on the right side of the bottom side of the lower case 45, and the lid 47 covering the opening 45 b is removable as shown in FIGS. 7 and 10. It is provided in a state where it is fastened and fixed with a knob bolt 49. The lid 47 has a shape in which the edge on the lower end side is bent into a substantially square shape.

  As shown in FIG. 7, an inspection opening 45 c is also formed on the rear side of the upper side of the lower case 45, and the welding bolt 51 can be removed with the lid 50 covering the opening 45 c being removable. The nut 52 is provided in a state of being fastened and fixed.

  As shown in FIGS. 7 and 10, the cylindrical body 53 constituting the longitudinal conveying path of the lifting conveyor 35 is also formed with inspection openings 54 at two locations, upper and lower, and a lid body 55 covering the opening 54 is provided. It is provided in a state where it is fastened and fixed with a knob bolt 56 in a removable state.

  As shown in FIG. 7 and FIG. 10, a screw-type lateral feed is carried on the upper part of the transporting conveyor 35 to transport the first product transported upward to the inside of the storage hopper 4 </ b> A of the bagging device 4. The feed conveyance unit 35A is provided so as to protrude in the lateral direction. Although not described in detail, for example, when the combine is transported, the laterally feeding and conveying unit 35A is configured to be removable by releasing the bolt connection between the cases.

  As shown in FIG. 2, the second collection unit 33 is provided with a second conveyance screw 57 that conveys the collected second item to one side in the left-right direction. The reprocessing mechanism 58 for re-handling the second material conveyed by the second conveying screw 57 and the second material after the reprocessing by the reprocessing mechanism 58 are reduced and conveyed to the upper part of the rough panning grain pan 59. A screw-type second reducing transport device 36 is linked and connected.

  As shown in FIG. 13, an inspection opening 61 is formed on the upper surface of the connection case portion 60 that connects the reprocessing mechanism 58 and the conveyance start end of the second reducing conveyance device 36. The cover 62 is provided in a state in which the cover 62 is detachable and fastened with a welding bolt 63a and a wing nut 63b.

  Further, as shown in FIGS. 13 and 14, an inspection opening 65 is formed in the outer cylinder case portion 64 at the transfer start end portion of the second reduction transfer device 36, and an arc-shaped lid that covers the opening 65 is formed. A body 66 is detachably mounted. The lid body 66 is formed such that both side end portions are bent into an L shape and are fastened and fixed by a butterfly bolt 68 in a detachable state with respect to the flange portion 67 on the fixed side.

As shown in FIG. 11, inspection openings 70 are formed at two upper and lower portions in a cylindrical body 69 constituting a long conveyance path extending obliquely upward of the second reduction conveyance device 36. One lid 71 covering the opening 70 is provided so as to be swingable and openable around an axis P1 along the longitudinal direction of the cylinder 69. The inspection opening 70 and the lid 71 are arranged along the longitudinal direction of the cylinder 69. It is formed in a long shape.
Further, as shown in FIGS. 11 and 12, a closing member 72 that can be switched between a holding state in which the lid 71 is held in a closed state and an open state in which the lid 71 can be freely opened is provided in the longitudinal direction of the cylindrical body 69. And is supported in a swingable manner around the axis P2 along the longitudinal direction of the cylindrical body 69.

  The closing member 72 is fixed to a mounting seat 74 formed integrally with the cylindrical body 69 by a plurality of butterfly bolts 73 provided at intervals in the longitudinal direction, so that the lid body 71 is closed. The position can be maintained, and the lid 71 can be switched to the open state by removing the butterfly bolt 73 and switching to the open state. The closing member 72 is provided with an operating rod 75 that can be rotated integrally so that an operator can easily reach the opening and closing operation by manual operation by reaching out from the bagging device 4 side.

Next, the configuration of the swing sorting mechanism 21 will be described.
As shown in FIG. 2, the swing sorting mechanism 21 includes a sheave case 77 that swings back and forth by the operation of an eccentric cam type drive mechanism 76 provided on the lower rear side. A coarse pan 59, a chaff sheave 78, and a stroll rack 79 are arranged in that order so as to continue from the front end of the sheave case 77 to the rear, and an inclined guide plate 80 is provided at a lower portion of the sheave case 77. Are arranged in the order, and a chaff sheave 82 (hereinafter referred to as No. 2 chaff sheave) for selecting the second item is arranged so as to be connected to the Glen sheave 81 behind the Glen sheave 81. Yes.

  As shown in FIGS. 2 and 15, the eccentric cam type drive mechanism 76 is installed and supported across the left and right side walls 37 of the threshing device 3 and is eccentric with respect to the rotational axis P3. The eccentric crankshaft 83 provided and the case connecting shaft 84 connected to the sheave case 77 are pivotally connected by a pair of connecting arms 85, and are also supported by the side walls 37 on both the left and right sides so that their positions can be fixed. The shaft 86 and the case connecting shaft 84 are pivotally connected by a pair of connecting arms 87. The case connecting shaft 84, that is, the sheave case 77 is configured to reciprocally swing around the fulcrum shaft 86 when the eccentric crankshaft 83 is driven to rotate about the rotation axis P <b> 3.

  Then, as shown in FIG. 15, a U-shaped support arm 88 is connected to the eccentric crankshaft 83 in a state of extending in the diametrically opposite side with respect to the rotation axis P3. A balance weight 89 is attached to 88. With this configuration, the position of the center of gravity is brought closer to the rotation axis P3, and the vibration generated due to the movement of the position of the center of gravity accompanying the rotation of the eccentric crankshaft 83 is minimized.

  As shown in FIG. 2, the rough sorting gren pan 59 is made of a sheet metal material that is bent so that the longitudinal side shape thereof is a saw blade shape, and swings back and forth together with the sheave case 77, so that the front end of the receiving net 26. The threshing processed material leaked from the part is sorted by specific gravity difference and transferred to the rear chaff sheave 78 while stratified into dust such as straw scraps having a small specific gravity and grains having a large specific gravity.

  The chaff sheave 78 is configured by arranging and arranging a plurality of cha flip plates 78A in the front-rear direction with a set interval, and threshing from the front side of the receiving net 26 and the grain pan 59 by swinging back and forth with the sheave case 77. The processed product is subjected to a sieving selection process, and the threshing processed material that has not leaked from between the cha-flip plates 78A is transferred to the rear strollac 79 while the grains and the like are leaked from between the cha-flip plates 78A. It is configured as follows.

  The stroller 79 is configured by arranging and arranging a plurality of rack plates 79A formed in a saw blade shape in a cantilevered manner in a rearwardly inclined posture with a set interval in the left-right direction. At the same time, by swinging back and forth, it is configured to flow down the scraps and the like that have not leaked from between the rack plates 79A from the rear end, while allowing grains and the like to leak from between the rack plates 79A.

  The second chaff sheave 82 is configured by arranging and arranging a plurality of chiff flip plates 82A in the front-rear direction with a set interval, and the sheave case in a rearwardly inclined posture such that the rear end is close to the rear end of the sheave case 77. 77, which is deployed at the rear of the 77 and swings back and forth with the sheave case 77, so as to let the grain with branches and branches and the like as the second thing leak from between the cha-flip plates 82A, etc. The threshing product is transferred to the rear of the sheave case 77.

  Glen sieve 81 is arranged in a tilted posture that rises rearward below chaff sheave 78, and swings back and forth with sheave case 77, so that the threshing processed material leaked from chaff sheave 78 is subjected to a sieving selection process, and single grain , The grain with branches and the like that does not leak is transferred to the rear second chaff sheave 82 together with straw scraps and the like as the second thing.

  The auxiliary tang 30 has a chaff sheave 78 between an upper wind direction plate 91 provided on the bottom surface of the rough sorting grain pan 59 and a lower wind direction plate 92 provided to be connected to the inclined guide plate 80. It is configured to supply the sorting air that blows through between the glensheep 81 and between the Strollac 79 and the second chaff sheave 82.

  The No. 2 Kara 31 oscillates the sorting wind that passes from below the No. 2 chaff sheave 82 through the tapered air outlet 94 formed by the up and down wind direction plate 93 and blows rearward and upward from the rear end of the No. 2 chaff sheave 82. It is configured to supply toward the rear end of the sheave case 77 which is the rear vertical wall of the dynamic sorting mechanism 21.

  As shown in FIG. 16, a cover body 95 is provided below the second tang 31 to prevent mud soil splashed by the crawler type traveling device 6 located below from being scattered to the second tang 31. Although not shown, the cover body 95 is formed in a porous shape so as to supply the sorting air, and the left and right side walls 37 of the threshing device 3 can be removed for maintenance. It connects with the volt | bolt 95a.

Next, the configuration of the Glen sieve 81 will be described.
As shown in FIGS. 5 and 6, the grain sieve 81 includes a frame body 96 that surrounds the outer peripheral portion, and a crimp net 97 as a porous member for grain leakage supported by the frame body 96. The frame 96 includes a plurality of leakage action regions divided along the workpiece transfer direction, and a crimp net 97 is detachably provided in each leakage action region. ing.

  As shown in FIG. 5, as the leakage action area, the upper side of the workpiece transfer direction, that is, the front side area Z1 as the upper side leakage action area located on the front side of the machine body, The rear side region Z2 as a lower side leakage action region located on the rear side of the machine body is formed, and a crimp net 97A in which a small transmission hole t1 is formed in the front side region Z1 is mounted, and the rear side region A crimp net 97B in which a large transmission hole t2 is formed in Z2 is mounted.

  In addition, as shown in FIGS. 3 and 4, the frame body 96 includes a lateral frame portions 96 a and 96 b on both front and rear sides and a front and rear frame portions 96 c on both left and right sides formed in a substantially L-shaped cross section. 96d is integrally connected in a rectangular frame shape in plan view, and a cross section is provided across the front and rear frame portions 96c and 96d on the left and right sides at a position closer to the front side than the center portion in the front and rear direction in the frame body 96. A relay support member 98 formed in a U-shape is erected and connected. A rectangular leakage action region formed by the frame body 96 is divided into a front side region Z1 and a rear side region Z2 by a support member 98 for relay.

  A partition portion that divides the front side region Z1 and the rear side region Z2 is formed at a position offset toward the upper side in the processing material transfer direction from the central portion of the entire length along the processing material transfer direction in the grain sieve 81. Incidentally, in this embodiment, the front side region Z1 is set to about 1/4 of the total width in the front-rear direction of the grain sieve 81, and the rear side region Z2 is about 3/4 of the total width in the front-rear direction of the grain sieve 81. It is set to about the front and rear width.

  In the front side region Z1, a front crimp net 97A in which a small transmission hole t1 is formed includes a horizontal plane portion 96a1 in the front sideways frame portion 96a, and horizontal plane portions 96c1 in the front and rear side frame portions 96c and 96d on both left and right sides. 96d1 is placed and supported on each of the front side portions of the upper surface 98a of the support member 98, and is sandwiched by the contact plate 99 from above, and the frame body 96 and the contact plate 99 are fixed by the bolt 100 and the nut 101. Thus, each of the crimp nets 97A can be sandwiched and held in a fixed state.

  Also in the rear side region Z2, as in the front side region Z1, the rear crimp net 97B in which a large transmission hole t2 is formed is connected to the horizontal plane portion 96b1 in the lateral frame portion 96b on the rear side and the front and rear sides on the left and right sides. The horizontal frame portions 96c1 and 96d1 of the orientation frame portions 96c and 96d and the rear side portion of the upper surface 98a of the support member 98 are placed and supported, respectively, and sandwiched by the contact plate 99 from above, so that the frame body 96 and the contact plate 99 Are fixed with bolts 100 and nuts 101, so that the crimp net 97B can be sandwiched and held in a fixed state.

  The contact plate 99 provided on the upper portion of the relay support member 98 is provided so as to be shared by the front crimp net 97A and the rear crimp net 97B, and holds each of the crimp nets 97A and 97B. It is configured.

  That is, each of the horizontal plane portion 96a1 in the front side horizontal frame portion 96a, the horizontal plane portion 96b1 in the rear side horizontal frame portion 96b, and the upper surface 98a of the support member 98 protrudes upward at an appropriate interval in the left-right direction. In the state, a plurality of bolts 100 are fixed by welding in advance, and the bolts are inserted through the insertion holes 102 formed in the backing plate 99 so as to be sandwiched by the backing plate 99 from above with the crimp nets 97A and 97B being placed. 100 is inserted, and it is comprised so that the nut 101 can be screwed and fixed from the upper side.

  As described above, the bolt 96 and the nut 101 are fastened and fixed, whereby the frame 96 and the respective crimp nets 97A and 97B are assembled in a unit shape, and the granule sieve 81 assembled in such a unit shape is sieved. The case 77 can be detachably attached to the case 77.

  That is, as shown in FIG. 6, an insertion hole 103 for attaching and detaching the grain sheave 81 is formed on the side surface 77 </ b> A on one side in the left-right direction of the sheave case 77, so that the insertion hole 103 is covered with the lid body 104. It is configured. The cover body 104 is configured to be fixed to the sheave case 77 with four bolts 105 around the periphery, and is fixed to the one side position of the frame body 96 in the left and right direction of the frame body 96 in the united shape with the bolt 106. It is configured as follows.

As shown in FIG. 6, the sheave case 77 is provided with a guide rail 107 as a pair of front and rear guide members that slidably guide the grain sheave 81 through the insertion hole 103, and the lid body 104 and the grain sheave 81 are provided. It is configured so that it can be integrally slid along the guide rail 107 and pulled out laterally outward of the sheave case 77 or inserted into the inward side.
Although not shown in the figure, the attaching / detaching operation of the glensieve 81 is performed through an opening formed on the side wall 37 of the threshing device 3 and covered with a detachable lid.

  A pair of support pins 108 projecting inward from the case are formed on the side surface 77B on the other side in the left and right direction of the sheave case 77 (the front end side in the insertion direction of the grain sheave 81). Engagement bosses 109 are formed to engage and engage with each support pin 108 in a slidable moving direction in a state where the sheave case 77 is slid to the proper mounting position.

When attaching the sheave case 77 to the sheave case 77, with the lid 104 fixed to the unit-shaped glensieve 81, insert the glensieve 81 through the insertion hole 103 and receive it by the pair of front and rear guide rails 107. It is inserted while being guided, and the engagement hole 110 of the engagement boss portion 109 is fitted and engaged with the support pin 108, and the four places around the lid body 104 are fixed to the side surface of the sheave case 77 with bolts 105.
When removing the grain sheave 81, the bolt 105 can be removed and the grain sheave 81 can be pulled out of the sheave case 77 while being guided by the guide rail 107 together with the lid 104.

  In addition, a shielding plate 111 as a shielding member for preventing leakage of the threshing processed product is detachably provided in the front side region Z1 of the Glen sieve 81. That is, as shown in FIG. 3 and FIG. 6, the plurality of bolts 112 are spaced apart in the longitudinal direction while projecting downward on the guide rail 107 located on the front side of the pair of guide rails 107. Is installed in a pre-welded state, and a shield plate 111 having an insertion hole 113 through which the bolt 112 is inserted can be mounted from the lower side of the grain sheave 81 and fastened with a wing nut 114 to be fixed. It is configured so that it can be easily removed.

  In the case of the grain sieve 81 having such a configuration, when it is necessary to replace the crimp net 97 having a different size of the permeation hole according to the difference in work conditions, the frame body 96 and the contact plate 99 are shared as they are. This can be dealt with by replacing only the crimp net 97. As a result, the user only needs to prepare a plurality of crimp nets 97, and the cost burden can be reduced as compared with a grain sieve in which the frame body 96 and the crimp net 97 are provided integrally.

  Further, an insertion hole 113 formed in the shielding plate 111 is formed as a long hole in the front-rear direction, and is provided so that the front-rear position of the shielding plate 111 can be changed and adjusted, and the maximum shielding that fully closes the front side region Z1. The front-rear position can be changed so as to reduce the shielding area from the position over the set range.

[Another embodiment]
(1) In the above-described embodiment, the grain sieve 81 has the front side region Z1 as the upper side leakage action region located on the upper side of the workpiece transfer direction, that is, the front side of the machine body, as the leakage action region. A crimp net 97A is formed, which is formed with a rear side region Z2 as a lower side leakage action region located on the lower side in the direction, that is, the rear side of the aircraft, and with a small perforation t1 formed in the front side region Z1. In this embodiment, a crimp net 97B having a large perforation hole t2 formed in the rear side region Z2 is shown. However, instead of such a configuration, the Glen sieve 81 is treated as a leakage action region. It is good also as a structure which divides | segments into 3 or more along the thing transfer direction, and equips each leakage action area | region with the structure which equips each leakage action area | region with one or more crimp net | networks. Further, instead of the crimp net 97, a punching metal or the like formed by punching through holes may be used.

(2) In the above-described embodiment, the grain sieve 81 is formed such that the width along the processed material transfer direction of the front side region Z1 is shorter than the width along the processed material transfer direction of the rear side region Z2. Although shown, the width along the workpiece transfer direction of the front side region Z1 may be formed to be substantially the same as the width along the workpiece transfer direction of the rear side region Z2.

(3) In the above embodiment, the shielding member 111 that prevents the processed material from leaking is attached to the guide rail 107 of the sheave case 77 in a detachable manner in the front side region Z1 of the plurality of leakage working regions of the Glen sheave 81. and the but, instead of the configuration of attaching the sheet Bukesu 77, but it may also be configured to mount to the frame 96 of Gurenshibu 81.

(4) In the above-described embodiment, the partition member that partitions the plurality of leakage action regions in the Glen sieve 81 is provided with the support member 98 in a state of being supported over the both side frame portions 96c and 96d in the frame 96. However, a configuration in which such a support member 98 is not provided may be employed.

(5) In the above-described embodiment, the threshing device mounted on the ordinary combine harvester including the bagging device 4 that stores the kernel and enables the bag to be packed is shown. For example, the kernel is stored. In addition, it may be a combine equipped with a grain tank equipped with a grain discharging device that discharges stored grains to the outside, and it is a self-removal type that handles and processes the tip of the head while holding the root of the harvested cereal A threshing device attached to the combine may be used.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a screening unit for a threshing apparatus in which a swing sieve mechanism that performs sorting processing while swinging and transporting a threshing product is provided with a grain sheave for sorting the grains through leakage.

21 Oscillating sorting mechanism 81 Glen sieve 96 Frame body 96c, 96d Both side frame body parts 97, 97A, 97B Porous member 98 Support member
107 Guide member 111 Shield member t1, t2 Through hole Z1 Upper side leakage action area Z2 Lower edge leakage action area

Claims (7)

The swing sieve mechanism that performs the sorting process while swinging and transferring the threshing product is provided with a grain sieve that separates and sorts the grain, and the grain sieve surrounds the outer periphery and the grain supported by the frame. A sorting unit for a threshing device comprising a porous member for leakage,
The frame body includes a plurality of leakage action regions that are divided along the workpiece transfer direction, and the porous member is detachably provided in each leakage action region, so that the Glen sieve is configured. ,
A shielding member for preventing leakage of the processed material is detachably provided at least in the leakage operating region on the uppermost side in the processing material transfer direction among the plurality of leakage operating regions,
A sorting unit for a threshing device that is supported in a state in which the porous member is positioned above the frame body and in which the shielding member is positioned below the frame body . A guide member for supporting the Glen sheave from below is provided,
The screening unit for a threshing apparatus according to claim 1, wherein the shielding member is provided in a state of being positioned below the guide member. The screening for a threshing apparatus according to claim 2, wherein the shielding member is supported on the lower surface of the guide member so as to be slidable along the lower surface of the guide member, and is capable of adjusting a position change along the workpiece transfer direction. Department. A support member for supporting a boundary between the porous member on the uppermost side in the workpiece transfer direction and a porous member adjacent to the porous member;
4. The sorting unit for a threshing apparatus according to claim 3, wherein a vertical wall part that regulates the position change of the shielding member toward the lower side in the processed product transfer direction extends downward on the support member. The perforation hole of the porous member provided in the leakage action area on the upper side in the treatment object transfer direction among the leakage action areas is provided in the leakage action area on the lower side in the treatment object transfer direction. The sorting unit for a threshing device according to any one of claims 1 to 4, wherein the sorting unit is set to be smaller than a permeation hole of the porous member. Supporting members for supporting the plurality of porous members boundaries each other, according to any one of claims 1 to 5 is provided in a state of being bridged supported across both side frame portions of the frame Sorting unit for threshing equipment. As the leakage action area, two of the upper side leakage action area located on the upper side of the processed product transfer direction and the lower side leakage action area located on the lower side of the processed substance transfer direction are formed,
Width along the treated product transfer direction of the upper side Moshita action area, of claims 1 to 6, wherein is formed to be shorter than the width along the treated product transport direction downstream side Moshita action area The sorting part for threshing devices given in any 1 paragraph.

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