JP2011177032A - Separating device of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a separating device of a combine harvester, which can improve the separating accuracy of the separating device to increase the dropping quantity of first grains on a first grain-receiving chute and improve the collection efficiency of the first grains. <P>SOLUTION: In the separating device of the combine harvester, a front chaff sieve is disposed at a place above the first grain-receiving chute on an oscillation separator, a rear chaff sieve is disposed at a place above the second grain-receiving chute, an intermediate chaff sieve is disposed between the front and rear chaff sieves, and the intermediate chaff sieve is disposed just above the upper end portion of a grain-flowing plate so as to span the upper end portion of the grain-flowing plate in the longitudinal direction, whereby separating air flowing in the rear upper direction along the grain-flowing plate flows to pass the intermediate chaff sieve from the lower side to the upper side. Thereby, oscillation separating for separating grains (unhulled rice) from dusts, waste straws and unhulled rice having rachis-branches with the intermediate chaff sieve, and wind-powered separation with separation wind for blowing off the separated dusts and waste straws can be cooperated to increase the amount of the first grains dropped on the first grain-receiving chute. Consequently, the separating accuracy of the separating device is improved to enhance the collection efficiency of the first grains. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a combine sorting apparatus capable of improving sorting performance.

  Conventionally, there exists what was disclosed by patent document 1 as one form of the sorting apparatus of a combine. That is, such a combine sorting apparatus includes a swing sorting body that swings in the front-rear direction and swings the grain, and a grain that has been swing-sorted disposed below the front of the swing sorter. The wind-sorted tang, the first grain receiver that receives the first grain that has been wind-sorted and placed behind the tang, and the second that has been wind-sorted after the first grain receiver. It is equipped with a second grain receptacle that receives the second grain.

  And, between the first grain receptacle and the second grain receptacle, a drifting cereal plate formed by extending from the first grain receptacle toward the rear upper side is arranged, Along with the first grain receiver, the first grain is allowed to flow down, and the sorting air blown from the tang is made to flow along the drift cereal board upward.

  In addition, the rocking sorter is provided with a chaff sheave positioned above the first grain receiver, and a sieve wire is disposed immediately after the chaff sheave to shake the grain. ing. The sieve line is arranged just above the upper end of the drift cereal plate so that the sorting air that is ventilated rearward and upward along the drift cereal plate vents the sieve line upward from below. Yes. And the dust and the sawdust which were separated by sieving the grain with the sieving line are discharged to the outside by the sorting wind.

JP 2005-65615 A

  However, in the above-described sorting apparatus, there is a problem that the sorting accuracy is insufficient between the swing sorting using the sieve wire disposed immediately after the chaff sheave and the wind sorting using the sorting wind. That is, there is a problem that a large amount of the grain is collected in the grain receptacle after flowing down the drifted grain board without separating the grain and dust and swarf, and post-work is troublesome.

  Then, this invention makes it the problem which should be solved to provide the sorting apparatus of the combine which can improve the sorting precision and can improve the collection | recovery efficiency of the first grain.

  The present invention is characterized by the following configuration as means for solving the above-mentioned problems.

  The combine sorting apparatus according to claim 1 is a swing sorting body that swings in the front-rear direction and swings the grain, and a grain that is swing-sorted by being arranged below the front of the swing sorting body. Tang Dynasty that wind-sorts the grains, the first grain receiver that receives the first grain that has been wind-selected and placed behind the Karatsu, and the wind-sorted that is placed behind the first grain receiver A second grain receiver for receiving the second grain, and extending between the first grain receiver and the second grain receiver from the first grain receiver to the rear upper side. Arrange the formed drift cereal board, let the first grain receiver flow down the first grain along the drift cereal board, and the rearward upward along the sorting grain blown from the tang In the combine sorting apparatus adapted to ventilate the head, the swing sorter is positioned above the first grain receiver and the front chaff sheave is disposed, while the second grain receiver is disposed above. Position A rear chaff sheave and an intermediate chaff sheave between the front and rear chaff sheaves. The intermediate chaff sheave is located directly above the upper end so as to straddle the upper end of the cereal plate. It arrange | positions, The selection wind ventilated toward a back upper direction along a flow grain board was made to ventilate an intermediate part chaff sheave toward the upper direction from the downward direction, It is characterized by the above-mentioned.

  In such a combine sorting apparatus, an intermediate chaff sheave is disposed also directly above the upper end of the drift cereal plate so as to straddle the upper end, and is also ventilated rearward and upward along the drift cereal plate. Since the wind passes through the middle chaff sheave from below to above, it is separated from the swaying sort that separates the grains (rice cake) from the middle chaff sheave and the dust, swarf, and rice cake with branches. The amount of leakage of the first grain to the first grain receiver can be increased in cooperation with the wind sorting by the sorting wind that blows off dust and swarf. Therefore, it is possible to solve the problem that a large amount of sorting objects such as grains are supplied to the rear chaff sheave and become a deposited state, and the sorting function of the sorting objects by the rear chaff sheave is lowered. As a result, the front, middle, and rear chaff sheaves perform the sorting function steadily, and the sorting effect is generated synergistically. Therefore, the sorting accuracy in the sorting device is improved, and the grain recovery efficiency is improved.

  The combine sorting device according to claim 2 is the combine sorting device according to claim 1, wherein the combine sorting device is vertically swung in conjunction with the back-and-forth swing motion of the swing sorter just above the intermediate chaff sheave. An operating sieve wire is provided.

  In such a combine sorting apparatus, since the intermediate chaff sheave and the sieve wire cooperate closely and closely, the sorting accuracy can be further improved and the grain recovery efficiency can be improved.

  The combine sorting device according to claim 3 is the combine sorting device according to claim 2, wherein the intermediate chaff sheave is detachably attached to the swinging sorter, and a sieve wire is attached to the intermediate chaff sheave, The sieving wire is detachably attached to the swing sorter integrally with the intermediate chaff sheave.

  In such a combine sorting apparatus, the intermediate chaff sheave and the sieve wire are integrally detachably attached to the swing sorting body. Can be improved. And the removal work and maintenance work of the grain sheave attached to the rocking sorter can be simplified through the opening that is opened by integrally removing the intermediate chaff sheave and the sieve wire. As a result, work efficiency such as maintenance can be improved over the entire chain from the periphery of the intermediate chaff sheave.

  The present invention has the following effects. That is, the front, middle, and rear chiff sheaves cooperate with the wind sorting by the sorting wind and perform the sorting function steadily, so that the sorting effect is generated synergistically. As a result, the sorting accuracy in the sorting device is improved and the amount of leakage of the first grain to the first grain receiver is increased. Therefore, the recovery efficiency of the first grain can be improved.

The side view of the combine which concerns on this invention. Side surface explanatory drawing of a selection part. Side surface explanatory drawing of an oscillation sorter. Plane explanatory drawing of a rocking sorter. Cross-sectional front explanatory drawing of a rocking sorter. The perspective explanatory view in the attachment state of the middle part chaff sheave. Plane explanatory drawing in the attachment state of an intermediate part chaff sheave.

  Below, the combine in embodiment of this invention is demonstrated, referring drawings.

  FIG. 1 shows a general-purpose combiner as a combine A equipped with a sorting device in the present embodiment. The combine A is provided with a pair of left and right crawler type traveling units 2 at the bottom of the machine body 1. A mowing unit 4 is attached to the left front edge of the machine body 1 via a conveyance unit 3 so as to be movable up and down. A threshing unit 5 is disposed immediately after the conveying unit 3, and a sorting unit 6 as a sorting device is arranged immediately below the threshing unit 5. A waste disposal unit 7 is disposed at the rear upper part of the sorting unit 6 and immediately after the threshing unit 5. Reference numeral 12 denotes a lifting hydraulic cylinder for raising and lowering the cutting part 4, 13 a platform provided in the cutting part 4, 14 a transverse auger provided in the platform 13, and 15 a scraping reel disposed above the platform 13. , 16 is a cutting blade provided at the lower end portion of the platform 13, and 17 is a pair of left and right weed bodies provided at the front end portion of the platform 13.

  The combine A is a front portion of the machine body 1, and an operation unit 8 is disposed at a right side position of the transport unit 3. A grain storage unit 9 is disposed immediately after the operation unit 8 and at a right side position of the threshing unit 5. A prime mover unit 10 composed of an engine (not shown) or the like is disposed immediately after the grain storage unit 9 and the engine is driven so that the power mechanism units operate in conjunction with each other. Reference numeral 11 denotes a carry-out auger.

  In this way, the combine A performs the following work while the traveling unit 2 is self-propelled in the field in which grains such as rice, wheat, and soybean are planted. That is, the cereal that has been cut by the cutting blade 16 of the cutting unit 4 is carried into the threshing unit 5 through the transport unit 3. The grain threshed by the threshing unit 5 is sorted by the sorting unit 6, and the sorted fresh grain is stored in the grain storage unit 9. In addition, the cereal threshed by the threshing unit 5 is conveyed to the slaughter processing unit 7 as slaughter, and is squeezed (cleaved and discharged outside the machine). The fresh grains in the grain storage unit 9 are carried out via a carry-out auger 11 into a loading platform of a transport vehicle.

  Here, as shown in FIGS. 1 and 5, the threshing unit 5 is formed by communicating the handling chamber 20 at a position immediately after the conveying unit 3. A cylindrical handling cylinder 21 is installed inside the handling chamber 20 so as to be rotatable in a state where the rotation axis is directed in the length direction (front-rear direction) of the machine body 1. Reference numeral 19 denotes a barrel support shaft. A spiral blade body 23 is attached to the peripheral wall of the main body 22 of the handling cylinder 21. Reference numeral 24 denotes a handling blade. A concave 25 (receiving net) is continuously stretched in the circumferential direction along the lower half peripheral surface of the handling cylinder 21 at a position directly below the handling cylinder 21.

  As shown in FIGS. 2 and 5, the sorting unit 6 arranges a swinging sorter 30 at a position directly below the handling cylinder 21 between the left side wall 27 and the right side wall 28 forming the sorting chamber 26. Has been established.

  The swing sorting body 30 is provided with a swing support shaft 29 at the front end, and the swing support shaft 29 is connected to the left and right side wall bodies 27 and 28 via swing links (not shown). Further, the rear end portion of the swing sorter 30 is linked to the swing mechanism 31. The swing sorting body 30 is swung while drawing a long elliptical trajectory extending in the front-rear direction by the swing mechanism 31 to swing and sort the threshed grains.

  A first tang 32 is disposed below the front of the swinging sorter 30 so that the sorting wind is blown from the first tang 32 toward the rear of the swinging sorter 30. A second tang 33 is arranged below the swinging sorter 30 so that the sorting wind is blown from the second tang 33 toward the rear of the swing sorter 30. In this way, the grains that have been subjected to rocking and sorting by the rocking and sorting body 30 are continuously subjected to wind sorting by the first and second tangs 32 and 33.

  A grain receiver 34 is disposed at a position below the middle of the swinging sorter 30 and immediately before the second tang 33. The first grain receptacle 34 is formed by extending in the left-right direction, and the first conveyor 35 is disposed therein. Then, the first grain receiver 34 receives the first grain that has been subjected to rocking selection and wind selection, and the first grain received by the first conveyor 35 is transferred to the first conveyor via a lifting conveyor (not shown). It is conveyed to the grain storage unit 9.

  In addition, a second grain receiving rod 36 is disposed below the middle part of the swinging sorter 30 and at a position immediately after the second tang 33. The second grain receptacle 36 is formed by extending in the left-right direction, and a second conveyor 37 is disposed therein. Then, the second grain received by the second grain receiver 36 is subjected to the rocking and wind-sorted second grain, and the received second grain is handled by the second conveyor 37 via the reduction conveyor 38 (see FIG. 1). Return to chamber 20. The second grain reduced to the handling chamber 20 is threshed again by the handling cylinder 21 and re-sorted by the sorting unit 6. Reference numeral 39 denotes a pre-cooling fan that is disposed immediately before the swing sorting body 30 and blows air to the swing sorting body 30.

  As shown in FIGS. 3 and 4, the swing sorter 30 is formed in a rectangular frame shape that extends the main body 50 in the front-rear direction. A feed pan 51, front / intermediate / rear chaff sheaves 52, 53, 54, Glen sheave 55, and Strollac 56 are attached to the main body 50. The feed pan 51 is stretched on the front portion of the main body 50. A guide body 57 guides the grains on the feed pan 51 toward the center.

  The front chaff sheave 52 is disposed immediately after the feed pan 51. A number of fins 60 are swingably attached to the front chaff sheave 52 at intervals in the front-rear direction, and the amount of grain leakage can be adjusted by adjusting the swing angle of all the fins 60 integrally. Yes.

  The intermediate chaff sheave 53 is disposed immediately after the front chaff sheave 52. A large number of fins 61 are fixedly attached to the intermediate chaff sheave 53 at intervals in the front-rear direction.

  The rear chaff sheave 54 is disposed immediately below the intermediate chaff sheave 53. A large number of fins 62 are swingably attached to the rear chaff sheave 54 at intervals in the front-rear direction, and the amount of grain leakage can be adjusted by integrally adjusting the swing angle of all the fins 62. .

  Glen sieve 55 is arranged below the rear half of front chaff sheave 52. The Strollac 56 is disposed at a position immediately below the intermediate chaff sheave 53 and at a position immediately before the rear chaff sheave 54. Reference numeral 63 denotes a drifting cereal board interposed between the rear end edge of the first grain receptacle 34 and the front end of the stroller 56. The drifted grain plate 63 is formed by extending the rearward upward, and the first grain receiver 34 is caused to flow down the first grain along the drifted grain board 63 and the air blown from the first tang 32 is selected. The wind is made to flow along the drifted cereal plate toward the middle upper chaff sheave 53.

  In the configuration as described above, the gist of the present invention resides in that the intermediate chaff sheave 53 is detachably disposed between the front and rear chaff sheaves 52 and 54. The intermediate chaff sheave 53 is arranged immediately above the upper end portion so as to straddle the upper end portion of the flow cereal plate 63 in the front-rear direction, and is ventilated rearward and upward along the flow cereal plate 63. The wind W is passed through the intermediate chaff sheave from below to above.

  That is, as shown in FIGS. 5 to 7, the intermediate chaff sheave 53 connects the front end portions of the pair of left and right support pieces 70 extending in the front-rear direction to the horizontally long connecting piece 71 extending in the left-right direction in a horizontal manner. is doing. A large number of horizontally long fins 61 extending in the left-right direction are horizontally mounted between the pair of left and right support pieces 70 with a predetermined interval in the front-rear direction in a front-rear and rear-inclined posture. . Bolt insertion holes 72 and 73 are formed in the front and rear portions of the support piece 70 respectively, while the left side wall forming piece 74 and the right side wall forming piece 75 that form a part of the main body 50 of the swing sorter 30 are formed. A mounting hole (not shown) is formed.

  In this way, the attachment hole and the bolt insertion holes 72 and 73 are matched and the bolt 76 is screwed, so that the intermediate chaff sheave 53 can be attached to and detached from the main body 50 of the swing sorter 30.

  In the sorting unit 6, an intermediate chaff sheave 53 is disposed directly above the upper end portion of the drift cereal plate 63 so as to straddle the upper end portion, and is ventilated rearward and upward along the drift cereal plate 63. The selection air W is passed through the intermediate chaff sheave 53 from below to above. Therefore, the swaying separation that separates the grains (rice cakes) from the middle chaff sheave 53 from the dust, rice cake wastes, and the rice cakes with branch stems, and the wind selection by the sorting air W that blows away the separated dusts and rice cakes cooperate. Thus, the amount of leakage of the first kernel to the first kernel receiver 34 can be increased. As a result, the sorting accuracy in the sorting unit 6 can be improved, and the recovery efficiency of the first kernel can be improved. In addition, the fins 61 of the intermediate chaff sheave 53 can also adjust the amount of grain leakage by adjusting the swing angle integrally, similarly to the fins 60 and 62 of the front and rear chaff sheaves 52 and 54. it can. As a result, it is possible to improve the sorting accuracy by the intermediate chaff sheave 53 and improve the recovery efficiency of the first grain.

  In addition, a sieve wire 80 that swings up and down in conjunction with the back-and-forth swing motion of the swing sorter 30 is disposed directly above the intermediate chaff sheave 53. That is, a pipe-like sieve wire support piece extending in the left-right direction through a pair of left and right pivot pieces 81 between a pair of left and right support pieces 70 positioned between the horizontally long connecting piece 71 and the frontmost fins 61. 82 is supported horizontally. That is, the sieve wire support piece 82 is rotatable around its axis.

  The sieve wire 80 is attached to the sieve wire support pieces 82 at the respective leading end portions (front end portions) of a large number of sieve wire forming bodies 83, and is arranged at regular intervals in the left-right direction. The sieve wire forming body 83 includes a wire-like short piece 84 extending straight in the front-rear direction, a wire-like long piece 85 extending straight in the front-rear direction parallel to the short piece 84, and the long piece 85 and the short piece 84. It is integrally formed from a connecting piece 86 that connects the front ends. The long piece 85 is formed to be approximately twice as long as the short piece 84.

  In this way, the sieve wire 80 has the front half formed from the short pieces 84 and the long pieces 85 to form the left and right widths to a short width, and the latter half from only the long pieces 85 to make the left and right widths wide. Forming. As a result, while the sieving efficiency in the first half of the sieving wire 80 is increased, the wind sorting effect by the sorting wind W in the second half can be enhanced.

  A lower end portion of a link 87 extending in the vertical direction is connected to the left end portion of the sieve wire support piece 82. An arm support shaft 88 is provided on the left wall 27 forming the sorting chamber 26 so as to protrude rightward (inward), and a base of a swing arm 89 extending in the front-rear direction at the tip of the arm support shaft 88 is provided. The end is pivotally supported. The tip end portion (front end portion) of the swing arm 89 and the upper end portion of the link 87 are connected via a connecting pin 90.

  In this way, when the swing sorter 30 is swung forward, the sieve wire support piece 82 is rotated clockwise in the side view shown in FIG. 3 via the swing arm 89 and the link 87. As a result, the front end side (rear end side) of the sieve wire 80 attached to the sieve wire support piece 82 is swung downward (in the direction approaching the fins 61). When the swing sorter 30 is swung rearward, the sieve wire support piece 82 is rotated counterclockwise in the side view shown in FIG. 3 via the swing arm 89 and the link 87. As a result, the front end side (rear end side) of the sieve wire 80 attached to the sieve wire support piece 82 is swung upward (in the direction away from the fin 61). In this way, the vertical swing motion of the sieve wire 80 is interlocked with the swing motion of the swing sorter 30 in the front-rear direction. At this time, since the intermediate chaff sheave 53 and the sieve wire 80 cooperate closely and closely, the sorting accuracy can be further improved and the recovery efficiency of the grain can be improved.

  The intermediate chaff sheave 53 is detachably attached to the swinging sorter 30, the sieve wire 80 is attached to the intermediate chaff sheave 53, and the sieve wire 80 is attached to and detached from the swinging sorter 30 integrally with the intermediate chaff sheave 53. It is free. Therefore, it is possible to improve the mounting accuracy and the mounting simplicity of the intermediate chaff sheave 53 and the sieve wire 80 to the swing sorter 30. And the opening part 91 is open | released above the grain sheave 55 by removing the intermediate part chaff sheave 53 and the sieve wire 80 integrally. Therefore, it is possible to simplify the removal work and the maintenance work of the grain sieve 55 and the like attached to the swing sorter 30 through the opening 91. As a result, work efficiency such as maintenance can be improved over the entire chain from the periphery of the intermediate chaff sheave 53.

A Combine 1 Airframe 2 Traveling unit 3 Transport unit 4 Harvesting unit 5 Threshing unit 6 Sorting unit 7 Exclusion processing unit 8 Driving unit 9 Grain storage unit 10 Motor unit 52 Front chaff sheave 53 Intermediate chaff sheave 54 Rear chaff sheave 80 Sieve line

Claims (3)

An oscillating sorter that oscillates in the front-rear direction and sorts the grain, a tang that arranges the grain that has been oscillated and arranged under the front part of the oscillating sorter, and the rear of the tang The first grain receiver that receives the first grain that has been wind-sorted and placed on the second grain, and the second grain that receives the second grain that has been wind-sorted after the first grain receiver With a reception,
Between the first grain receptacle and the second grain receptacle, a drifting grain plate formed by extending from the first grain receptacle toward the rear upper side is arranged, and along the drifting grain board In the combine sorting device, which causes the first grain to flow down to the first grain receiver, and allows the sorting wind blown from the tang to flow along the drifting cereal plate upwards later,
On the swing sorter, the front chaff sheave is positioned above the first grain receiver, while the rear chaff sheave is positioned above the second grain receiver, both front and rear Between the chaff sheaves, an intermediate chaff sheave is arranged,
The intermediate chaff sheave is arranged just above the upper end of the drift cereal plate so as to straddle the front and rear direction. The combine sorter is characterized in that it is ventilated from below to above.   2. The combine sorting apparatus according to claim 1, wherein a sieve wire that swings up and down in conjunction with a back-and-forth swing motion of the swing sorter is disposed immediately above the intermediate chaff sheave.   The intermediate chaff sheave is detachably attached to a swinging sorter, a sieve wire is attached to the intermediate chaff sheave, and the sieve wire is detachably attached to the swing sorter integrally with the intermediate chaff sheave. The combine sorting apparatus according to claim 2.

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