JP2015188354A - Combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine that can suppress staying of grain.SOLUTION: A combine 1 includes a threshing unit for threshing grain culm reaped by a reaping device, and a sorting unit 9 for sorting the processed object of grain threshed in the threshing unit. The sorting unit 9 includes a winnower 92 and a swinging sorting unit 91 disposed in the upper part of the winnower 92 and having the sorting wind from the winnower 92 guided through a third air passage 113C. The swinging sorting unit 91 includes a transfer shelf 96, a sieve wire 97 and a closing member 120. The transfer shelf 96 is disposed above the winnower 92 and transfers the processed object of grain leaked and passed from a threshing unit 8. The sieve wire 97 is fixed by a bracket 101 behind the transfer shelf 96 and disposed above a first sieve 98 for separating the grain from the processed object, and thereby separates long foreign substances from the processed object. The closing member 120 is attached to the bracket 101 and closes a third air passage 113C, and thereby regulates the sorting wind from being blown on the processed object transferred by the transfer shelf 96.

Description

  The present invention relates to a combine.

  The combine includes a traveling device, a reaping device, and a threshing device, and performs reaping, threshing, and selection while traveling. As a conventional combine, for example, in Patent Document 1, cereals cut and harvested by a main cutting device of a reaping device are transported to an upper threshing chamber (threshing part of a threshing device) by a transport device and transported. A general-purpose combine is disclosed in which the rice is threshed by a handling cylinder that is rotationally driven in the upper threshing chamber and is sorted by a sorting section provided below the upper threshing chamber.

The sorting section of the general-purpose combiner consists of two air passages that guide the sorting wind from Karatsu to the No. 1 recovery section and No. 2 collection section, and the transfer shelf arranged above the Karatsu and the first sheave. There is one air passage to guide to. One air channel that guides the sorting air between the transfer shelf and the first sheave blows the sorting air on the object to be processed, which is made up of grains and impurities falling from the front part of the upper threshing chamber, It is for separating a processed material into a grain and a foreign material. General-purpose combine sorting section
When there are few impurities contained in the to-be-processed object which falls from the front part of an upper threshing room, it will block the one above-mentioned air path with a blocking member.

JP 2004-229596 A

  By the way, the general-purpose combine sorting unit described in Patent Document 1 described above tends to retain grains and the like between the transfer shelf and the blocking member when the above-described one air passage is blocked by the blocking member. there were.

  This invention is made | formed in view of said situation, Comprising: It aims at providing the combine which can suppress the retention of a grain.

  In order to achieve the above object, the combine (1) according to the present invention includes, for example, a threshing unit (8) for threshing cereals harvested by the reaping device (4), and a cover threshed by the threshing unit (8). In a combine (1) comprising a sorting part (9) for sorting the grains of the processed product, the sorting part (9) is disposed above the tang (92) and the tang (92) and A swing sorting portion (91) through which the sorting wind from the Kara (92) is guided through the air passage (113C), and the swing sorting portion (91) is disposed above the Kara (92). And the transfer shelf (96) which transfers the said to-be-processed object leaked from the said threshing part (8), and it is fixed by the bracket (101) behind the said transfer shelf (96), and is a grain from the said to-be-processed object Placed above the sheave (98) for separating the A screen line (97) for separating impurities and a bracket (101) that closes the air passage (113C) and blows the sorting air onto the object to be processed which is transferred by the transfer shelf (96). And a blocking member (120) for restricting the movement.

  In the above combine (1), for example, the closing member (120) is disposed between the grain pan (95A) that receives the object to be processed leaking from the sheave (98) and the sieve line (97). It can be arranged.

  In the combine (1), for example, the closing member (120) includes a contact portion (120C) that contacts the mounting member (115) attached to the Glen pan (95A). be able to.

  In the combine according to the present invention, since the closing member that closes the air passage is attached to the bracket that fixes the sieve line to the rear of the transfer shelf, the closing member is located in the vicinity of the rear end portion of the transfer shelf, It can suppress that the grain which leaked the sheave stays ahead rather than the rear-end part of a transfer shelf. Therefore, when blocking an air path, there exists an effect that the retention of a grain can be suppressed.

FIG. 1 is a front view illustrating a schematic configuration of the combine according to the embodiment. FIG. 2 is a side view illustrating a schematic configuration of the combine according to the embodiment. FIG. 3 is a rear view illustrating a schematic configuration of the combine according to the embodiment. FIG. 4: is sectional drawing of the front-back direction of the combine threshing apparatus which concerns on embodiment. FIG. 5 is a cross-sectional view of the combine sorting unit according to the embodiment in the front-rear direction. FIG. 6 is a cross-sectional view of a main part of the selection unit shown in FIG. FIG. 7 is a cross-sectional view of a state in which the closing member is removed from the selection unit shown in FIG. Fig.8 (a) is a front view which shows the pulley which transmits a driving force to the Karatsu of the combine which concerns on embodiment, FIG.8 (b) is sectional drawing which follows the VIIIB-VIIIB line | wire in Fig.8 (a). FIG. 8C is a cross-sectional view showing a state in which all shims are sandwiched between the inner pulley and the outer pulley of the pulley shown in FIG. 8B. FIG. 9 is a cross-sectional view in the front-rear direction of the sorting screen of the combine sorting unit according to the embodiment. FIG. 10 is a plan view of the sorting screen of the sorting unit shown in FIG. 9 as viewed from below.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

[Embodiment]
The combine which concerns on embodiment of this invention is demonstrated based on drawing. 1 is a front view showing a schematic configuration of the combine according to the embodiment, FIG. 2 is a side view showing the schematic configuration of the combine according to the embodiment, and FIG. 3 is a rear view showing the schematic configuration of the combine according to the embodiment. FIG. 4 is a cross-sectional view in the front-rear direction of the combine threshing apparatus according to the embodiment. In the following description, the front-rear direction is the front-rear direction of the combine 1. Further, the front-rear direction is a traveling direction when the combine 1 travels straight, and the front side in the straight direction is referred to as the front side, and the rear side is referred to as the rear side. Further, the vehicle width direction is a direction that is horizontally orthogonal to the front-rear direction, and the right side on the front side in the straight direction is referred to as the right side, and the left side on the front side in the straight direction is referred to as the left side. Further, the vertical direction is a direction orthogonal to the front-rear direction and the vehicle width direction. The front-rear direction, the vehicle width direction, and the vertical direction are orthogonal to each other.

  The combine 1 of the embodiment shown in FIG. 1 is capable of harvesting and threshing grains such as soybeans, buckwheat, etc. in addition to rice, while self-propelled by a driving force generated by an engine (not shown) as a power source. It is a general purpose combine. As shown in FIGS. 1, 2, and 3, the combine 1 includes a body frame 2, a traveling device 3, a reaping device 4, a threshing device 5 provided on the upper side of the body frame 2, and a threshing device 5. A Glen tank 6 provided on the right side is provided. The combine 1 threshes and sorts the cereals harvested by the reaping device 4 with the threshing device 5, stores the threshed and sorted grains with the threshing device 5 in the Glen tank 6, and stores the stored kernels And discharged to the outside by a discharge auger 6A composed of a lateral feed cylinder. In addition, a steering unit 7 on which a pilot rides is provided on the front side of the Glen tank 6.

  The body frame 2 is a structural member of the body of the combine 1. An engine as a power source is mounted on the front side of the body frame 2 in the front-rear direction. The engine is a source of driving force used in the combine 1. The engine is an internal combustion engine, which is a heat engine that converts fuel energy into mechanical work and outputs it as rotational power by burning the fuel in a combustion chamber. Further, the engine is provided on the lower side of the control unit 7 on the body frame 2. The driving force of the engine is transmitted to a traveling mission fixed at the center of the body frame 2 in the vehicle width direction via an HST (Hydro Static Transmission).

  The traveling device 3 is provided on the lower side in the vertical direction of the body frame 2. The traveling device 3 is driven by a traveling mission and travels the entire combine 1. The traveling device 3 includes a crawler 3A. The crawlers 3 </ b> A are provided as a pair at intervals in the vehicle width direction on the lower side in the vertical direction of the body frame 2. The driving force of the engine is transmitted to the crawler 3A via a traveling mission. The traveling device 3 travels the entire combine 1 in the front-rear direction when the crawler 3A is driven by the driving force transmitted from the engine. By changing the speed of the HST by operating a main speed change lever (not shown), the driving speed of the traveling device 3 is changed steplessly.

  The reaping device 4 is provided in front of the body frame 2. The reaping device 4 is driven by the driving force from the engine to harvest the culm and convey the harvested culm to the threshing device 5 or the like. The mowing device 4 includes a scraping device 4A, a side mowing blade device 4B, an auger device 4C, and a feeder house 4D. Note that a vertical cutting blade device (not shown) can be mounted on the left side of the auger device 4C in order to cut the grain entangled above the auger device 4C.

  The scraping device 4A is a device for scraping a fallen cereal, a low cereal such as soybeans and buckwheat, and a high cereal such as oil and rape into the auger device 4C. They are formed with the same width and are provided on the upper side of the auger device 4C. The horizontal cutting blade device 4B is a device that cuts the stock of the cereal that has been raked by the rake device 4A, and is provided at the front lower portion of the auger device 4C, and gently rises back from the front side to the rear side in a side view. It is arranged at an angle.

  The auger device 4C is a device that gathers the cereals scraped by the scraping device 4A to the front of the feeding port opened at the rear left side of the auger device 4C and takes over to the feeder house 4D. And is formed to have substantially the same width as the overall width of the general-purpose combine machine. Further, a weeding body 4E is attached to the left and right front sides of the auger device 4C. The feeder house 4D is a device that lifts and conveys grains such as rice, wheat, soybeans, buckwheat, etc., taken over from the auger device 4C to the threshing device 5, and is provided between the auger device 4C and the threshing device 5. .

  As shown in FIG. 4 and the like, the threshing device 5 is threshed by the threshing unit 8 provided at the upper part and threshing the cereal husks harvested by the reaping device 4 and the threshing unit 8 provided below the threshing unit 8. A sorting unit 9 that performs grain sorting, and a cutting process that is provided on the rear side of the sorting unit 9 and cuts impurities such as wastes discharged from the threshing unit 8 and straw scraps discharged from the sorting unit 9. The chamber 50 is provided with a discharge chamber 70 that is provided on the rear side of the cutting processing chamber 50 and discharges waste or the like cut by the cutting processing chamber 50 to the outside.

  The front and rear plates 81 and 82 of the threshing unit 8 are rotatably supported by the front and rear end portions of a handling cylinder shaft 84 that lays a handling cylinder 83 extending in the front-rear direction inside the threshing unit 8. A handling net 86 is attached to the middle plate 85 so as to be stretched below the handling cylinder 83. In addition, the upper part of the intermediate | middle board 85 is formed in the circular-arc-shaped notch part toward the base from the upper part, in order to reduce the resistance to the grain mash carried back while threshing. The intermediate plate 85 supports the handling net 86 and gives a transfer resistance to an object to be processed (made of grains and impurities) obtained by the handling cylinder 83 in the threshing unit 8 threshing the cereal. It is.

  The threshing unit 8 is supplied with cereal meal from a feeder house 4D of the reaping device 4. A handling cylinder 83 provided in the threshing unit 8 includes a front frustoconical take-up spiral portion 87 and a rear cylindrical portion 200. On the outer peripheral surface of the take-up spiral portion 87, a transport spiral 87A inclined toward the rear side is provided in order to transport the supplied cereals backward.

  A substantially plate-shaped first plate 88 made of steel or the like in which a plurality of first handle teeth 88A are fixed in the front-rear direction by welding or the like and a plurality of second handle teeth 89A in the front-rear direction are provided on the outer peripheral surface of the cylindrical portion 200. And substantially plate-like second plates 89 made of a steel material or the like to which are attached to each other are alternately provided at intervals of 60 degrees in the circumferential direction. Alternatively, the first plate 88 on which the first handle teeth 88 </ b> A are erected and the second plate 89 on which the second handle teeth 89 </ b> A are erected may be alternately arranged at intervals of 45 degrees in the circumferential direction. it can.

  The sorting unit 9 separates grains such as straw scraps and the like of the processed material threshed by the threshing unit 8 by the driving force from the engine, and selects the grains from the processed material. . 5 is a cross-sectional view of the combine sorting unit according to the embodiment in the front-rear direction, FIG. 6 is a cross-sectional view of the main part of the sorting unit shown in FIG. 5, and FIG. 7 is the sorting unit shown in FIG. It is sectional drawing of the state from which the closing member was removed from.

  An object to be processed threshed by the threshing unit 8 leaks into the sorting unit 9. The sorting unit 9 includes a swing sorting unit 91 that receives and sorts a workpiece to be leaked, a tang 92 provided below the swing sorting unit 91 and in front of the sorting unit 9, and a tang 92 The first collection unit 93 and the second collection unit 94 are provided in order behind the first collection unit 94. In other words, the swing sorting unit 91 is disposed above the Kara 92.

  As shown in FIGS. 4 and 5, the swing sorting unit 91 includes a swing sorting case 95, a transfer shelf 96, a sieve line 97, and a first sheave 98 (corresponding to the sheave in the claims). The second sheave 99 and the Strollac 100 are provided. The swing sorting case 95 is provided on the upper portion of the sorting unit 9 over substantially the entire length of the sorting unit 9 in the front-rear direction. The swing sorting case 95 is driven to swing at the rear end portion by an eccentric drive mechanism (not shown), and supported at the front end portion so as to be reciprocally movable in the front-rear direction.

  The transfer shelf 96, the sieve line 97, the first sheave 98, the second sheave 99, and the stroller 100 are provided in the swing sorting case 95 and are arranged in order from the front side to the rear side. The transfer shelf 96 is arranged above the Karatsumi 92 and performs specific gravity sorting while transferring an object to be processed mainly containing a lot of grains leaked from the front part of the threshing part 8.

  The sieve line 97 is used to separate long impurities from the object to be processed by placing the long objects of the object to be processed transferred from the transfer shelf 96. As shown in FIGS. 6 and 7, the sieve line 97 is fixed to the swing sorting case 95 by a bracket 101 behind the transfer shelf 96. The bracket 101 also serves as the rear end of the transfer shelf 96. A plurality of sieve lines 97 are arranged at predetermined intervals in the vehicle width direction.

  The first sheave 98 separates the processed material from which the long impurities are separated by the sieve line 97 from the transfer shelf 96 into the grains and the impurities and separates the grains from the processed material. It is. The first sheave 98 is provided behind the transfer shelf 96 and below the sieve line 97, and a step is provided between the first sheave 98 and the transfer shelf 96. In other words, the sieve line 97 is disposed above the first sheave 98. The first sheave 98 has a belt-shaped first sheave plate 98A arranged in parallel in the front-rear direction at a predetermined interval, and is laid in the vehicle width direction. Further, the first sheave plate 98A is inclined so as to go upward as it goes backward in the cross section in the front-rear direction. Further, the plurality of first sheave plates 98A are gradually arranged on the upper side as going to the rear one. Further, the rear end portion of the first sheave 98 in the front-rear direction is disposed below the intermediate plate 85.

  The second sheave 99 is used to sort the second object to be processed. The second sheave 99 is provided on the rear side and slightly below the first sheave 98, and a step is provided between the second sheave 99 and the first sheave 98. The second sheave 99 has a belt-shaped second sheave plate 99A arranged in parallel in the front-rear direction at a predetermined interval, and is extended in the vehicle width direction. Further, the second sheave plate 99A is inclined so as to go upward as it goes backward in the cross section in the front-rear direction. Further, the plurality of second sheave plates 99A are gradually arranged on the upper side as going to the rear one.

  The Strollac 100 is to transport and discharge foreign matters to be processed. Further, the swing sorting portion 91 is provided with a Glen pan 95A below the rear end portion of the transfer shelf 96 and the front end portion of the first sheave 98, and below the center portion of the first sheave 98 and the second sheave 99. A sorting screen 102 is provided below the central portion. Glen pan 95A receives the processed material mainly composed of grain that leaks from first sheave 98, and sorting net 102 leaks mainly only the grain from the processed material received by Glen pan 95A. Thus, the grains and the foreign substances are separated. FIG. 9 is a cross-sectional view in the front-rear direction of the sorting screen of the sorting section of the combine according to the embodiment, and FIG. 10 is a plan view of the sorting screen of the sorting section shown in FIG.

  As shown in FIGS. 9 and 10, the sorting screen 102 is provided with a vertical lattice 102A that is parallel to the front-rear direction and equidistant in the vehicle width direction, and parallel to the vehicle width direction and equidistant in the front-rear direction. And a horizontal lattice 102B formed in a lattice shape (net shape). The horizontal lattice 102B and the vertical lattice 102A are formed in a linear shape extending linearly. Further, the horizontal grid 102B is arranged on the vertical grid 102A, and the intersection of the horizontal grid 102B and the vertical grid 102A is joined by resistance welding or the like.

  The red pepper 92 is disposed at the front part and the lower part of the sorting unit 9, and is rotationally driven by the driving force from the engine to blow the sorting wind to the rear side of the sorting unit 9. The red pepper 92 is covered with a red pepper case 103 provided with an opening 103A on the rear side. In addition, FIG. 8 is a figure which shows the pulley which transmits a driving force to the tang of the combine which concerns on embodiment.

  A pulley 104 shown in FIG. 8A that transmits driving force from the engine to the carp 92 is rotatably provided on the front plate 81 and the like, and rotates the carp 92 by being rotated by the driving force from the engine. Is. As shown in FIGS. 8B and 8C, the pulley 104 includes an inner pulley 105, an outer pulley 106, a plurality of shims 107, and a plurality of fixing bolts 108.

  The inner pulley 105 is formed in a disk shape, and is fixed to a fixed shaft 109 connected to, for example, the carp 92, and rotates in conjunction with the carp 92. The outer pulley 106 is formed in a disc shape, and is fixed coaxially with the inner pulley 105 by a fixing bolt 108. The inner pulley 105 and the outer pulley 106 are formed with tapered surfaces 105A and 106A that gradually separate from each other toward the outer periphery.

  The plurality of shims 107 are formed in a disk shape and are provided between the inner pulley 105 and the outer pulley 106 as shown in FIG. 8C, or as shown in FIGS. 8A and 8B. In this manner, the outer pulley 106 is overlaid on the outer surface and fixed to the pulleys 105 and 106 by a fixing bolt 108. The plurality of shims 107 change the distance between the taper surface 105 </ b> A of the inner pulley 105 and the taper surface 106 </ b> A of the outer pulley 106 by changing the number of sheets provided between the inner pulley 105 and the outer pulley 106. The shim 107 that is not provided between the inner pulley 105 and the outer pulley 106 is overlapped on the outer surface of the outer pulley 106 and is fixed to the outer pulley 106 or the like by fixing bolts 108.

  The first collection unit 93 collects the grains that have leaked from the sorting net 102 of the swing sorting unit 91 in a state where the first collection unit 93 has been removed from the contaminants by the sorting wind from the Karatsu 92, and collects the collected first number. An object is temporarily stored in the Glen tank 6. The second collection unit 94 is a mixture of branch-branched grains and foreign matters that have fallen from the rear end of the sorting screen 102 without leaking from the sorting screen 102 of the swing sorting unit 91, and a straw of the swing sorting unit 91. A branch-leaved grain or a mixture of foreign matters leaked from the rack 100 or the like is collected as the second item.

  Further, as shown in FIG. 5, in the opening 103 </ b> A of the tang case 103, there are a first air division 111 having a wing cross section and a second air division 112 having a triangular cross section above the first air division 111. Is provided. The sorting air from the Kara 92 is branched into a first air passage 113A, a second air passage 113B, and a third air passage 113C (corresponding to the air passage in the claims), and the rear side of the sorting section 9 and the like. To be blown. The first air passage 113 </ b> A is formed between the lower portion of the opening 103 </ b> A of the Kara case 103 and the first air division 111, and the second air passage 113 </ b> B is the first air division 111 and the second air division 112. Is formed between. The Kara 92 sends rearward upward sorting air to the leakage from the sorting screen 102, the sorting screen 102 itself, the sheaves 98, 99 and the Strollac 100 through the first air passage 113A and the second air passage 113B.

  The third air passage 113C is formed between the upper portion of the opening 103A of the tang case 103 and the second air division 112, and rises in a substantially vertical direction upward from the opening 103A of the tang case 103. It is. The red pepper 92 passes through the third air passage 113C and the opening 114 provided in the Glen pan 95A to the foreign matter to be processed to be transferred on the transfer shelf 96, the rear end of the transfer shelf 96, the first sheave 98 itself, and the like. A side-selective wind is blown. In addition, a guide member 115 (corresponding to an attachment member) that guides the sorting air passing through the opening 114, that is, the third air passage 113C to the rear end portion of the transfer shelf 96 together with the bracket 101 is attached to the Glen pan 95A. In this manner, the swinging selection unit 91 is guided through the third air passage 113C by the selection air from the tang 92.

  In the sorting unit 9 having the above-described configuration, the object to be processed threshed by the threshing unit 8 leaks into the swing sorting unit 91. The sorting unit 9 sorts the grains from the object to be processed by the swinging action of the swing sorting unit 91 and the sorting wind from the red pepper 92, and collects the grains in the No. 1 recovery unit 93. Once stored. In addition, the sorting unit 9 moves the remaining grains that have not been collected by the first collecting unit 93, together with other foreign matters, in spite of the rocking action of the rocking sorting unit 91 and the sorting wind from the Karatsu 92. To the side and collected in the second collection unit 94. The sorting unit 9 discharges impurities that have not been collected by the second collecting unit 94 to the cutting processing chamber 50 by a dust exhaust fan (not shown).

  Moreover, the threshing apparatus 5 of the structure mentioned above, ie, the combine 1, is provided with the closing member 120, as shown in FIG.5 and FIG.6. The closing member 120 closes the third air passage 113C when the object to be processed that leaks from the threshing unit 8 to the transfer shelf 96 when the combine 1 harvests rice or rapeseed does not contain (almost) impurities. The grain transferred by the transfer shelf 96 is prevented from being blown to the rear side. That is, the closing member 120 blocks the third air passage 113C and restricts the selection air from being blown to the object to be processed which is transferred by the transfer shelf 96.

  The closing member 120 is formed by bending a sheet metal into a square shape when viewed from the side. As shown in FIG. 6 and the like, the first flat plate portion 120B and the second flat plate portion 120C are connected via a bent portion 120A. (Corresponding to the contact portion). The first flat plate portion 120 </ b> B is superimposed on the lower surface of the bracket 101 and is fixed to the bracket 101 with bolts 121 and nuts 122. That is, the closing member 120 is attached to the bracket 101.

  When the first flat plate portion 120B is fixed to the lower surface of the bracket 101, the second flat plate portion 120C overlaps the rear surface of the upper end portion of the guide member 115. That is, when the closing member 120 is attached to the bracket 101, the second flat plate portion 120C comes into contact with the guide member 115 attached to the Glen pan 95A. The closing member 120 is configured such that the first flat plate portion 120B is fixed to the lower surface of the bracket 101 and the second flat plate portion 120C abuts on the guide member 115, so that the first sheave 98 is immediately in front of the transfer shelf 96 and the sieve line 97. The third air passage 113C is blocked by being located on the lower side and on the upper side of the Glen pan 95A. Further, the closing member 120 is located between the Glen pan 95 </ b> A and the bracket 101, that is, the sieve line 97.

  In addition, when harvesting wheat and the like with the threshing device 5 having the above-described configuration, that is, the combine 1, a large amount of contaminants is included in the material to be processed that leaks from the threshing unit 8 to the transfer shelf 96. As described above, it is desirable to blow the selection air through the third air passage 113C without attaching the closing member 120.

  The Glen tank 6 is provided on the side of the threshing device 5. The Glen tank 6 temporarily stores the grains threshed by the threshing device 5. The glen tank 6 is connected to a discharge auger 6A. The discharge auger 6 </ b> A conveys the grain in the grain tank 6 by the driving force from the engine and discharges the grain to the outside of the grain tank 6.

  The combine 1 configured as described above harvests the culm by the reaping device 4 while the traveling device 3 is driven by the driving force generated by the engine and travels. Then, the combine 1 conveys the cereals harvested by the reaping device 4 to the threshing unit 8 of the threshing device 5 by the feeder house 4D. In the threshing unit 8, the combine 1 rotates the handling cylinder 83 around the handling cylinder shaft 84 by the driving force transmitted from the engine to thresh the cereal. The threshed object to be processed leaks to the sorting unit 9 through the handling net 86. Then, the combine 1 sorts the grain by the sorting unit 9 using the sorting wind from the tang 92 and the swinging sorter 91 and stores the sorted grain in the glen tank 6.

  According to the combine 1 according to the embodiment described above, the closing member 120 that closes the third air passage 113C is attached to the bracket 101 that fixes the sieve line 97 to the swing sorting case 95 of the swing sorting portion 91. . For this reason, the closing member 120 is positioned in the vicinity of the rear end portion of the transfer shelf 96. Further, the closing member 120 has the first flat plate portion 120B fixed to the lower surface of the bracket 101 and the second flat plate portion 120C is in contact with the guide member 115, so that the first sheave 98 is immediately in front of the transfer shelf 96 and the sieve. It is located below the line 97, located above the Glen pan 95A, and located immediately behind the third air passage 113C. Further, the closing member 120 is disposed between the Glen pan 95A and the bracket 101, that is, the sieve line 97.

  For this reason, the combine 1 can suppress the space surrounded by the closing member 120 on the front side of the first sheave 98 and the Glen pan 95 </ b> A, and the grain leaking through the first sheave 98 is the rear end of the transfer shelf 96. It can suppress staying ahead rather than. Therefore, the combine 1 produces the effect that it can suppress the retention of grains when the third air passage 113C is blocked.

  Further, the combine 1 is configured such that the closing member 120 is disposed between the Glen pan 95A and the bracket 101, that is, the sieve line 97, and the second flat plate portion 120C of the closing member 120 is in contact with the guide member 115. It can suppress more that the grain which leaked 98 stays ahead rather than the rear-end part of the transfer shelf 96. FIG. Therefore, the combine 1 has the effect that the retention of grains can be further suppressed when the third air passage 113C is blocked.

  Further, in the combine 1, the pulley 104 that transmits the driving force from the engine to the carp 92 is divided into an inner pulley 105 and an outer pulley 106, and one or more shims 107 can be sandwiched between them. Therefore, the combine 1 can easily adjust the interval between the tapered surface 105A of the inner pulley 105 and the tapered surface 106A of the outer pulley 106. Moreover, since the combine 1 can overlap and fix the shim 107 which is not used on the outer pulley 106, the loss of the shim 107 which is not used can be suppressed.

  Moreover, the combine 1 comprises the selection net | network 102 by overlapping the linear horizontal lattice 102B and the vertical lattice 102A, and fixing these intersections by resistance welding etc. FIG. For this reason, in the combine 1, the horizontal grid 102 </ b> B and the vertical grid 102 </ b> A constituting the sorting network 102 are not bent, so that the strength of the sorting network 102 can be secured even if the outer diameters thereof are reduced. That is, the combine 1 can be reduced in weight, and the outer diameters of the lattices 102A and 102B can be reduced, so that the leakage rate can be improved and the grain loss can be reduced. Furthermore, since the horizontal lattice 102B is arranged on the vertical lattice 102A, the horizontal lattice 102B becomes resistant to the leakage of impurities, and the leakage rate of the grains can be improved, and the grain loss. Can be reduced.

  In addition, the combine 1 which concerns on embodiment of this invention mentioned above is not limited to embodiment mentioned above, A various change is possible in the range described in the claim.

DESCRIPTION OF SYMBOLS 1 Combine 4 Mowing device 8 Threshing part 9 Sorting part 91 Oscillating sorting part 92 Kara 95A Glen pan 96 Transfer shelf 97 Sieve line 98 First sheave (sheave)
101 Bracket 113C Third air passage (air passage)
115 Guide member (mounting member)
120 closing member 120C 2nd flat plate part (contact part)

Claims (3)

A threshing section for threshing the cereals harvested by the reaping device;
In a combine equipped with a sorting unit that sorts the grains of the processed material threshed in the threshing unit,
The sorting section includes a tang and a swing sorting section that is arranged above the tang and that guides the sorting wind from the tang through the air path.
The swing sorting unit is
A transfer shelf for transferring the object to be processed which is disposed above the tang and leaked from the threshing portion;
A sieve line that is fixed by a bracket behind the transfer shelf and is arranged above a sheave that separates grains from the object to be processed, and separates long impurities from the object to be processed;
A closing member that is attached to the bracket to block the air path and restricts the sorting air from being blown to the object to be processed that is transferred by the transfer shelf;
The combine characterized by having. The closing member is
The combine according to claim 1, wherein the combine is disposed between a grain pan that receives the workpiece to be leaked from the sheave and the sieve line. The combine according to claim 2, wherein the closing member includes an abutting portion that abuts an attachment member attached to the Glen pan.

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