JP5109523B2 - Threshing device - Google Patents

Threshing device Download PDF

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JP5109523B2
JP5109523B2 JP2007198487A JP2007198487A JP5109523B2 JP 5109523 B2 JP5109523 B2 JP 5109523B2 JP 2007198487 A JP2007198487 A JP 2007198487A JP 2007198487 A JP2007198487 A JP 2007198487A JP 5109523 B2 JP5109523 B2 JP 5109523B2
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handling
chamber
cylinder
processed
plate
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JP2009033983A (en
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釘宮  啓
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井関農機株式会社
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  The present invention relates to a threshing device mounted on a combine or the like.
  The combine is composed of a cereal reaping device, a threshing device, a Glen tank that temporarily stores after threshing, an auger that discharges the grain stored in the Glen tank, and the like.
  In the handling room, which is the main threshing part of the threshing device, the culm harvested by the reaping device is inserted. Threshed by action. The material to be processed (grains and wastes) separated from the cereals passes through the handling net and is received by the swing shelf in the sorting room to separate the second cereals and swarf, etc. Transport to tank. The second kernel is sent to the second processing chamber and separated by the second processing cylinder into grains, branch rafts, etc., and falls again on the swing shelf and separated into grains, second kernels, sawdust, etc. The Short items such as sawdust generated in the handling chamber are transported to the dust disposal chamber and processed by the dust disposal cylinder.
The above threshing work by the threshing device mounted on the combine etc. is labor-saving and efficient. In addition to the handling room of the threshing device, a second treatment room, a dust removal treatment room, etc. are provided to improve the efficiency of threshing and grain. High efficiency of grain recovery is achieved. And the structure which prevents the to-be-processed object in a handling chamber from flowing into the outer side of a handling chamber, or a to-be-processed object being easily transferred to the conveyance direction lower side in a handling cylinder, and improves the collection efficiency of a grain. It has been proposed (Patent Document 1 below). Moreover, the structure which aims at the recovery loss of the 4th grain by removing the scorpion grain which has been threshed and is exhausted by the waste discharged | emitted outside the combine is proposed (patent document 2 below).
JP 2007-104956 A JP 2006-271264 A
According to the configuration described in Patent Document 1, a guide body that guides an object to be processed toward the inside of the handling chamber between the resistance plate disposed on the feed chain side in the handling chamber and the handling cylinder, or between the guide body and the handling cylinder. A partition plate that provides resistance to the conveyance of the workpiece is provided. The communication port from the handling chamber to the dust disposal chamber is provided with a reverse lead plate that sends the workpiece to the upper side in the transport direction of the barrel, so that it can be easily guided to the dust disposal chamber. The structure which returns a thing to the conveyance direction upper direction side of a to-be-processed object is disclosed.
Moreover, according to the structure of the said patent document 2, a guide member is provided along the rotation outer periphery of the tooth-handling of a handling cylinder between the rear plate and middle rear plate of a handling chamber, and also the outer side surface of the middle rear plate of a handling chamber Discloses a configuration in which a tip support guide having a U-shape (L-shape) in plan view is provided so as to be inclined upward toward the left outer side in a side view.
  According to the configuration described in Patent Document 1, the material to be processed in the handling chamber is guided to the inside of the handling chamber by the guide body, and the grains that are crushed into the stock are reduced. Since the object to be processed transferred to the lower side is limited, the recovery of the scorpion grains at the rear of the partition plate is improved. In addition, a reverse lead plate having a lead angle in the return direction of the object to be processed (upper side in the transport direction) is provided immediately before the communication port of the dust disposal chamber, and the object to be treated is easily guided to the dust disposal chamber. Things are restricted. In this way, the processing object such as scorpion grains that rotate around the outer periphery of the handling cylinder (generated by normal grains being stuck in the cocoon along with the cocoon) is returned to the upper side in the conveying direction of the handling cylinder, and the fourth The grain loss is reduced.
  Moreover, according to the structure of the said patent document 2, like the structure of the said patent document 1, it guides the to-be-processed object in a handling chamber to the inside of a handling chamber by the guide member provided along the rotation outer periphery of a tooth-handling, By the interaction between the guide member and each tooth handling, the removal of the scorpion grains is made good. Further, the tip support guide having a U-shape in a plan view is provided on the rear side of the handling chamber so as to be inclined upward toward the left outer side in a side view, that is, in the same manner as the reverse lead plate described in Patent Document 1. A lead angle is provided in the return direction of the processed material (upper side in the conveying direction) to collect the scorpion grains.
  Thus, conventionally, the collection efficiency of the grain has been improved by guiding the object to be processed in the handling chamber toward the inside of the chamber or limiting the object to be transferred to the lower side in the conveyance direction of the handling cylinder. .
  However, under heavy load conditions, such as when the amount of workpieces is large, the workpieces that are transferred to the lower side of the handling cylinder in the transport direction are limited, and the workpieces are collected in the handling chamber, and the waste of the workpieces is discharged. There is a problem that the flow to the dust treatment chamber is also restricted. In addition, accumulation of objects to be processed in the handling chamber has been a cause of abnormal noise in the handling chamber. On the other hand, if there is no restriction on the object to be transferred to the lower side in the conveying direction of the handling cylinder, the object to be processed is easily sent to the rear side from the handling net below the handling chamber, and the efficiency of grain recovery is reduced. Incurs a decline.
  An object of the present invention is to solve the above-mentioned problems, and even under heavy load conditions, it is possible to prevent the processed material from being easily sent to the rear side from the handling net for filtering the processed material. In addition, the present invention provides a threshing device that promotes filtration of the object to be processed by the handling net, and does not restrict the flow of the object to be processed into the dust disposal chamber, and can further reduce the fourth grain loss. Moreover, it is provision of the threshing apparatus which can prevent generation | occurrence | production of the noise in a handling chamber also on the conditions with heavy load.
The above problem can be solved by the following solution means.
Invention according to claim 1, in Jikuka between the front plate of the threshing drum (69) having a扱歯(69a) for separating process the grain from culms (97) and the rear plate (98) A formed handling chamber (66), a feed chain (14) for supplying cereals to the handling chamber (66), a handling net (74) for filtering the workpiece generated in the handling chamber (66), A swing shelf (51) for receiving and filtering the workpiece filtered by the handle net (74) below the handling drum (69), and a conveying direction of the workpiece on the handling drum (69) The end portion side is a recovery cylinder (69b) for recovering a part of the object to be processed, the recovery cylinder (66a) is pivoted on the recovery cylinder (69b), and the handling cylinder (69) reaches the end side in the transport direction. A dust removal treatment cylinder (71) for taking over the treated object and processing it, and a dust removal treatment chamber (68) provided on the rear side of the treatment chamber (66); 66) a communication port (101) that communicates the end portion of the workpiece in the conveyance direction with the handling cylinder (69) and the leading end portion in the conveyance direction of the workpiece by the dust removal treatment cylinder (71) of the dust disposal chamber (68). ), A front middle plate (96F) that is provided on the conveying direction start end side of the workpiece in the communication port (101) and supports the conveying direction terminal end side of the handling net (74), and a communication port (101) A rear middle plate (96R) provided on the end side in the transport direction of the workpiece, and forming the recovery chamber (66a) between the rear middle plate (96R) and the rear plate (98), The plate is provided near the communication port (101), has a plate-like plane portion in a direction substantially orthogonal to the axis of the handling cylinder (69), and imparts conveyance resistance to the object to be processed in the handling chamber (66). 2 more guide plate for transferring guiding the object to be processed from the communication port (101) to the dust-exhaust processing chamber (68) side (84), the front in the plate (96 ) Between the feed chamber (14) side of the collection chamber (66a) and the swing shelf (51) of the collection chamber (66a). A threshing device provided with a rear guide plate (105) that protrudes upward and guides an object to be processed onto a swing shelf (51) .
The invention according to claim 2 is provided with a resistance plate (81) for preventing the workpiece in the handling chamber (66) from leaking to the outside in the vicinity of the supply port of the workpiece in the handling chamber (66). A part between the resistance plate (81) and the handling cylinder (69) provided inside the handling cylinder cover (102) covering the upper side of the handling cylinder (69) and provided parallel to the axial direction of the handling cylinder (69). Is provided with a stocker side guide body (82) for guiding the workpiece to the inside of the handling chamber (66), and the stocker side guide body (82) has a conveying direction of the handling cylinder (69) in a side view. A comb-tooth-shaped portion that is provided from the start end to the center and overlaps the rotation locus of the teeth (69a) of the handle (69) when viewed from the conveyance direction of the workpiece, and the center of the handle (69) in a side view Plane part that is provided from the first part to the end part in the conveying direction and does not overlap with the rotation locus of the tooth handling (69a) of the handling cylinder (69) when viewed from the conveying direction of the workpiece A threshing apparatus according to claim 1, further comprising a.
According to a third aspect of the present invention, there is provided a stock-side partition plate (93) that provides resistance to conveyance of an object to be processed by the handling cylinder (69) on a surface on the handling cylinder (69) side of the stock-side guide body (82). The threshing apparatus according to claim 2, wherein the threshing apparatus is provided.
According to the invention of claim 1, the guide plate (84) provided in the vicinity of the communication port (101) has a plate-like plane portion in a direction substantially perpendicular to the axis of the handling cylinder (69), It is possible to transfer and guide the object to be processed from the communication port (101) to the dust disposal chamber (68) side by applying a conveyance resistance to the object to be processed in the handling chamber (66). That is, by giving an appropriate conveyance resistance to the object to be processed in the chamber (66), the object to be processed can easily flow from the communication port (101) to the dust disposal chamber (68) side. The smooth flow of the object to be processed from the 66) side to the dust disposal chamber (68) side can reduce the generation of noise due to overload in the handling chamber (66).
In addition, the threshing processing capacity is increased by quickly taking over the object to be processed in the handling chamber (66) to the dust disposal chamber (68) and processing, for example, when this threshing device is mounted on a combine, The harvesting work by this combine can be performed at high speed, and the efficiency of the harvesting work can be improved.
Further, by providing the guide plates (84) before and after the workpiece in the conveyance direction, resistance is given to the conveyance of the workpiece at a plurality of locations in the conveyance direction of the workpiece, and the workpiece in the handling net (74) is provided. Filtration can be promoted, and the sorting efficiency is improved.
And since the guide plate (84) is divided and provided before and behind the conveyance direction of a to-be-processed object on both sides of the front middle plate (96F), a grain flows into the communication port (101) vicinity at once, and load is loaded. Without increasing, filtration from the handling net (74) is promoted from the front (in the conveying direction start end side of the workpiece) inside the handling chamber (66) to the intermediate portion, so that the inside of the handling chamber (66) The filtration efficiency increases, and the effect of reducing the recovery loss of the third and fourth grains increases.
Then, the rear guide plate (105) is provided so as to protrude above the swing shelf (51) in the sorting chamber (50) from the feed chain (14) side, so that it is within the lateral width of the swing shelf (51). Good recovery of scorpion grains.
Further, according to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the handling chamber (82) is provided by installing the stockholder side guide body (82) inside the resistance plate (81). 66), it is possible to reduce the amount of grain that is guided into the stocking room (66) and is fed into the stock.
Furthermore, according to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the object to be processed which is given resistance to the backward conveyance by the guide plate (84) is handled in the handling chamber (66). ) It tends to stagnate inside, but it is stopped by the stocker side partition plate (93) so that the object to be processed will not be caught again by the stocker side partition plate (93), and discharged from the handling chamber (66) to the outside. Can be prevented.
  FIG. 1 is a left side view of a combine that performs a grain harvesting operation according to an embodiment of the present invention, FIG. 2 is a plan view of the combine, and FIG. 3 is a partially cutaway side cross-sectional view of a combine threshing apparatus. The figure is shown. In the present embodiment, the front side and the rear side in the forward direction of the combine are referred to as front and rear, respectively, and the left side and right side are referred to as left and right, respectively.
  At the lower part of the traveling frame 2 of the combine 1 shown in FIGS. 1 and 2, there is a pair of left and right crawlers 4 made of a flexible material such as rubber and formed into an endless belt shape. The crawler 4 is provided with a traveling device 3 configured to be able to travel freely with a slight sink, a cutting device 6 is mounted on the front portion of the traveling frame 2, and an engine and a threshing device 15 (not shown) are installed on the upper portion of the traveling frame 2, The cockpit 20 and the Glen tank 30 are mounted.
  The reaping device 6 is configured such that the entire reaping device 6 can be lifted and lowered by a telescopic action of a reaping lifting cylinder (not shown), and cereals vegetated on the farm can be harvested at a predetermined height. The weeding tool 7 is disposed at the lower part of the front end of the reaping device 6, the cereal raising device 8 having an inclined shape behind it, and a cutting blade (not shown) at the rear bottom thereof. Between the cutting blade and the starting end of the feed chain 14 of the threshing device 15, the transfer device 9 such as a front conveyance device, a treatment depth adjusting device, and a supply conveyance device (not shown) is successively transferred and handled in the cereal. It is arranged so that it can be adjusted.
  The operation of the harvesting device 6 of the combine 1 is performed as follows. First, the engine is started and the operation levers for shifting, steering, etc. are operated so that the combine 1 moves forward, and the cutting and threshing clutch (not shown) is inserted and operated to transmit the rotating parts of the aircraft. When the traveling frame 2 is caused to travel forward, cutting and threshing operations are started. The cereals to be planted in the field are subject to weeding by the weeding tool 7 at the lower front end of the reaping device 6, and then the culm is raised and the device 8 is raised to bring it upright if it is lying down. The cereal stock reaches the cutting blade and is cut, and is scraped into the front transport device and transported backwards. Be transported.
  The cereal flour is inherited from the supply conveyance device to the start end of the feed chain 14 and supplied to the threshing device 15. The threshing device 15 is provided with a handling chamber 66 having a handling cylinder 69 pivoted on the upper side between a front plate 97 and a rear plate 98, and a sorting unit 50 provided integrally below the handling chamber 66. Thresh and sort the harvested cereal meal.
  As will be described in detail later, the cereal mash supplied to the threshing device 15 is inserted into a handling chamber 66 which is a main threshing portion, and a plurality of teeth 69a of a handling drum 69 which is pivoted on the handling chamber 66 and rotated. The threshing is performed by the transfer by the feed chain 14 and the interaction with the handling net 74, and the object to be processed (grains and wastes) is received by the swing shelf 51 of the sorting unit 50 in the threshing device 15, and up and down While moving on the swinging shelf 51 swinging to the wind, the wind is selected by receiving air from the tang 79, and the grains with heavy specific gravity pass through the sheaves 53 and 54 and the selection net 63, and from the first spiral 65, It is transported to the Glen tank 30 through the first cereal cylinder 78 (FIG. 6) incorporating a transport spiral (not shown) and temporarily stored in the Glen tank 30. On the shaft axis in the longitudinal direction of the first cereal cylinder 78, the straw discharge port of the Glen tank 30 is provided. In addition, a wind inlet 80 (FIG. 8) for taking in wind to the tang 79 is provided on the side wall of the threshing device 15.
  The remaining threshed culm that has reached the end of the handling chamber 66 of the threshing device 15 and is kept in a long length is sandwiched and transported between a culling chain and a culling head chain (not shown), and the rear part of the threshing device 15 It is thrown into the paddle cutter and cut and released to the field.
  A grain tank helix (not shown) for transferring grains is provided at the bottom of the glen tank 30, and a discharge auger comprising a vertical auger 18 and a horizontal auger 19 is provided on a helical drive shaft (not shown) for driving the glen tank helix. The grains that are connected and stored in the Glen tank 30 are discharged to the outside of the combine 1 from the discharge auger discharge port. The Glen tank spiral, vertical auger spiral (not shown), and horizontal auger spiral (not shown) are rotationally driven in response to the power of the engine and convey the stored grains by the screw conveyor action of each spiral blade. .
  FIG. 4 shows a plan view of the vicinity of the handling drum 69 of the combine threshing device 15 of FIG. Further, FIG. 5 shows an elevational cross-sectional view of the threshing device 15 as viewed in the direction of arrows AA in FIG. 3, and FIG. 6 shows an elevational sectional view of the threshing device 15 as viewed in the direction of arrows BB in FIG. FIG. 7 shows an elevational sectional view of the threshing device 15 as viewed in the direction of arrows CC in FIG.
  The grain husks harvested by the reaping device 6 are adjusted in the handling depth by the cereal conveyance and adjusting device attached to the reaping device 6 and inserted into the handling chamber 66 which is the main threshing portion of the threshing device 15. A handling drum 69 pivoted in the handling chamber 66 has a large number of teeth 69a on its surface, and is rotated in the direction of arrow B in FIGS. To do. Grains with grains inserted in the handling chamber 66 are transferred in the direction of arrow A in FIG. 4 by the moving feed chain 14, and the teeth 69 a and the handling net 74 of the handling drum 69 that rotate in the direction of arrow B are rotated. Is threshed by the interaction. Further, the lower part of the handling net 74 on the feed chain 14 side is supported by a net presser 77 from the front plate 97 to the rear middle plate 96R. The object to be processed (grains and wastes) separated from the cereals passes through the handle net 74 in the direction of arrow C1 (FIG. 5) and is received by the swing shelf 51.
  The swing shelf 51 includes a transfer shelf 52 arranged below the handling net 74 of the handling chamber 66, an upper first chaff sheave 53 and a second chaff sheave 54 arranged behind it, and a sorting net 63 below and a rearmost end. It is comprised from the stroller 62 etc. which were arrange | positioned.
  The first chaff sheave 53 and the second chaff sheave 54 are common in that the workpiece is leaked from between the sheaves while swinging and the wind is selected by blowing air from the tang 79, but the conveying direction of the workpiece The first chaff sheave 53 on the front side is smaller in size than the second chaff sheave 54 on the rear side, and the distance between the sheaves is somewhat narrow. On the front side in the transport direction of the workpiece, the single grain content in the workpiece is high, so that only the single grain is leaked while suppressing the leakage of the sawdust, and the sawdust is transferred to the rear. Such a configuration is adopted.
Further, a diffusion guide 88 for diffusing an object to be processed on the swing shelf 51 is positioned above the first chaff sheave 53, and a front end of the diffusion guide 88 is positioned above the transfer shelf 52 in the conveyance direction of the object to be processed. It is provided to do.
The transfer shelf 52 includes a plurality of rack-shaped sorting plates 52 a, and the transfer shelf 52 is disposed in front of the first chaff sheave 53. The transfer shelf 52 is arranged below the handling cylinder 69 and can receive the second processed material.
  The grain shed in the early stage of threshing that leaks in the area in front of the handling net 74 (FIG. 3) is a single grain and does not contain impurities, so it is necessary to roughly sort on the first chaff sheave 53 and the second chaff sheave 54. In addition, it is possible to perform wind selection with the direct selection net 63 by blowing air from the tang 79, which will be described later, and the load on the chaff sheaves 53 and 54 is reduced, and efficient threshing becomes possible.
  Further, since the swing shelf 51 swings in the up / down and front / rear direction by the operation of the swing shelf drive mechanism (not shown), the object to be processed leaks onto the swing shelf 51 while moving in the arrow D direction (FIG. 3). The grain having a high specific gravity passes through the sorting net 63 in the direction of arrow E, is accumulated on the first shelf 64, and is transported from the first spiral 65 to the grain tank 30 via the first lifting cylinder 78 (FIG. 6). The The grains stored in the Glen tank 30 are conveyed to the outside of the combine 1 via the augers 18 and 19.
  Among the objects to be processed on the swing shelf 51, lightweight ones are blown off by the swing action of the swing shelf 51 and the air blown by the fan 79 a of the Karatsu 79, and the first chaff sheave 53 and the second chaff sheave from the swing shelf 51. No. 2 grain which moves in the direction of arrow D toward 54 and leaks in the direction of arrow G on the Strollac 62 and is collected on the second shelf 85, and second in the second spiral 86. It is conveyed to the whipping cylinder 87.
The second kernel (sometimes called the second product) is a mixture of normal kernels, branch boughs, sawdust and scorpion grains with normal kernels in the waste. The inside of the whipping cylinder 87 is pumped up by a second whipping cylinder spiral (not shown), and discharged from the second processing chamber entrance to the second processing chamber 67. The second processing cylinder 70 pivoted at the lower portion of the second processing chamber 67 transmits power from the engine and rotates in the direction of arrow J in FIG. 4 by the drive mechanism. The second kernel is separated from the second kernel while branching in the direction of arrow I (FIGS. 3 and 4) while colliding with a number of processing teeth 70a planted in the second processing cylinder 70. The part of the object to be processed passes through the receiving net 75 provided below the second processing cylinder 70 and leaks to the sorting unit 50, and most of the object to be processed is transferred to the transfer shelf 52. Are sent in the direction of the first chaff sheave 53 and the second chaff sheave 54, and the grain passes through the first chaff sheave 53, the second chaff sheave 54 and the sorting net 63 and is collected in the first spiral 65.
In this way, the second product is collected on the transfer shelf 52 and reprocessed by the first chaff sheave 53 and the second chaff sheave 54, so that the separation between the grain and the waste is improved.
  The threshing cereals that have been threshed in the object to be processed that have traveled in the direction of arrow A in FIG. 4 and have reached the end of the handling room 66 are shown in FIG. It is transported and put into the waste disposal chamber 95.
  In addition, among the objects to be processed that have reached the end of the processing object conveyance direction end by the handling cylinder 69 of the handling chamber 66, short objects such as scraps are transported by the handling cylinder 69 of the handling chamber 66. It is thrown in the direction of the arrow A2 (FIG. 4) from the dust collection chamber inlet 68a in the communication port 101 that communicates the end portion and the start end of the workpiece in the conveyance direction of the workpiece by the dust collection cylinder 71 of the dust collection chamber 68. Then, it enters the dust removal processing chamber 68 by the action of the spiral 71b for improving the intake from the handling chamber 66, and in the dust removal processing chamber 68, the processing teeth 71a of the dust collection processing cylinder 71 which rotates rotates in the arrow K direction (FIG. 3). Processed while being transported. A spiral 71 b is provided on the upper side of the dust removal processing cylinder 71, and a processing tooth 71 a is provided on the lower side of the dust removal processing cylinder 71. On the side of the handling chamber 66 of the dust disposal cylinder 71, a lattice-like dust disposal cylinder frame 72 (FIG. 8) is provided along the lower side of the dust disposal cylinder 71 and the outer periphery of the handling chamber 66 side. The filter body of the chamber 68 is configured.
  Leakage (grains) in the processing object mainly composed of sawdust containing a small amount of grain entering the dust disposal chamber 68 leaks from the receiving net 76 (FIG. 3) onto the swing shelf 51. Then, it is guided to the Strollac 62 provided on the swing shelf 51 and sent from the second shelf board 85 to the second processing chamber 67 via the second lifting cylinder 87. The second processing cylinder 70 and the dust removal processing cylinder 71 on the same axis are driven by a driving force from the engine via a pulley, although not shown.
As shown in FIG. 3, a cross flow fan 91 is provided at the rear of the threshing device 15, and among dusts generated in the threshing device 15 including the dust removal processing chamber 68, swarf, branching bellows and dust having a low specific gravity are removed. The contained air is sucked by blowing air by rotation of the cross flow fan 91, blown out in the direction of arrow L from the outlet of the cross flow fan, and discharged to the outside of the combine 1.
Of the dust that has fallen from the dust removal processing chamber 68 to the end of the swing shelf 51 as indicated by an arrow M (FIG. 3), those having a small diameter and a high specific gravity, such as second and third grains, 51 passes through the end of the stroller 62 or the sheave 54 in the direction of arrow G, leaks to the second shelf 85, and is again processed in the second processing chamber 67.
  Further, as shown in FIG. 8, a front middle plate 96F and a rear middle plate 96R are arranged before and after the communication port 101, and the rear middle portion of the handling net 74 (FIG. 3) is supported by the front middle plate 96F. ing.
  A handling cylinder 69 between the rear middle plate 96R and the rear plate 98 on the rear side of the communication port 101 is a fourth collection cylinder 69b (FIG. 4) such as scorpion grains, and the end of the handling chamber 66 in the conveyance direction of the workpiece. A recovery chamber 66 a for recovering the scorpion grains that have reached the section side is provided in the handling chamber 66. In the collection chamber 66a, the rear end portion of the handling cylinder 69 (recovery cylinder) facing the collection chamber 66a with respect to the slaughter tip after the threshing process is performed by the tooth handling 69a provided from the front to the rear of the handling cylinder 69. 69b), the treated teeth 69a act, and the grains stuck into the spear tips can be struck down on the swing shelf 51 and collected.
  As shown in FIGS. 5 to 7, in order to prevent the workpiece from leaking outside the handling chamber 66, the workpiece to be carried from the feed chain 14 into the handling chamber 66 on the side of the handling cylinder 69. A resistance plate 81 attached to the inside of the handling cylinder cover 102 that can be freely opened and closed is provided in the vicinity of the object supply port in parallel with the axial direction of the handling cylinder 69. Further, between the resistance plate 81 and the handling cylinder 69, a stock-side guide body 82 for guiding an object to be processed into the inside of the handling chamber 66 is arranged in parallel with the resistance plate 81.
  Further, as shown in FIG. 4, the stocker side guide body 82 rotates from the starting end portion of the handling cylinder 69 in the conveyance direction of the workpiece to the substantially central portion of the handling cylinder 69 when the handling cylinder 69 rotates as viewed from the conveyance direction. The comb-tooth-shaped portion overlapping with the rotation locus of the tooth handling 69a at the time, and the rear part of the treatment barrel in the conveyance direction from the substantially central portion rearward of the treatment drum 69 to the treatment tooth 69a during rotation of the treatment drum 69 when viewed from the conveyance direction. It has a flat portion that does not overlap with the rotation locus, and the longitudinal direction is provided in parallel with the axis of the handling cylinder 69.
  FIG. 5 shows a state in which the stock-side guide body 82 overlaps with the rotation locus of the handle teeth 69 a from the start end portion of the handle cylinder 69 in the conveyance direction of the workpiece to the rear of the center portion of the handle cylinder 69. FIG. 6 shows a state in which the stock-side guide body 82 does not overlap with the rotation locus of the tooth handling 69 a from the rear of the center portion of the handling drum 69 to the end portion in the conveyance direction of the workpiece. By installing the stocker side guide body 82 inside the resistance plate 81, the workpiece in the handling chamber 66 is guided to the inside of the handling chamber 66 to reduce the grains that are crushed into the stock, and the stockholder side guide By providing the body 82 on the connecting frame 100 in which the front plate 97 and the rear plate 98 are connected, the frame configuration is strengthened and the stocker side guide body 82 is also stably attached.
  Further, an upper partition plate 83 is provided on the inner side of the handling cylinder cover 102 to restrict the conveyance of the object to be processed to the lower side in the conveying direction of the handling cylinder 69. As shown in FIGS. 5 and 6, the upper partition plate 83 has an arcuate lower end portion along the outer periphery of the handling cylinder 69 when viewed from the conveying direction of the workpiece in the handling cylinder 69. It has a plate-like flat portion in a direction orthogonal to the axis, and the upper partition plate 83 overlaps with the rotation locus of the tooth handling 69a when the handling cylinder 69 rotates as seen from the conveying direction of the workpiece in the handling cylinder 69. By providing in, the to-be-processed object can be returned to the conveyance upper side by interaction with the upper partition plate 83 and the tooth-handling 69a.
  Further, when the upper partition plate 83 is provided at substantially the same position in the front-rear direction as the rear middle plate 96R in front of the recovery chamber 66a, the upper partition plate 83 and the rear middle plate 96R provide resistance to the backward flow of the grains. In addition, the recovery of the scorpion grains in the recovery chamber 66a behind the upper partition plate 83 is improved, the filtration of the workpiece in the handling chamber 66 is also promoted, and the recovery loss of the third grain is also reduced.
  According to the present embodiment, the planar portion is provided in the direction substantially perpendicular to the axis of the handling cylinder 69 in the vicinity of the communication port 101, and the cover from the handling cylinder 69 in the handling chamber 66 to the dust removal processing chamber 68 is provided. It is characterized in that a resistance guide plate (guide plate) 84 for guiding while restricting the conveyance of the processed material is provided.
  The resistance guide plate (guide plate) 84 may be provided above the handling cylinder 69 and in the vicinity of the rear end portion of the handling net 74. Further, the communication port 101 may be provided on the near side in the conveyance direction of the object to be processed, or a plurality thereof may be provided. Further, as shown in FIGS. 5 and 6, a simple structure can be obtained by providing it on the handling cylinder cover 102 above the handling cylinder 69.
  As described above, conventionally, the communication port from the handling chamber 66 to the dust disposal chamber 68 is provided with a lead angle in the return direction of the workpiece (upper side in the transport direction) on the upper side in the transport direction of the handling cylinder 69. A reverse lead plate was provided, and the processed material that was easily guided to the dust removal processing chamber 68 was returned to the upper side in the conveyance direction of the workpiece. However, under a heavy load condition such as when the amount of the object to be processed is large, the object to be processed transferred to the lower side in the conveying direction of the handling cylinder 69 is limited, and the object to be processed accumulates in the handling chamber 66, and the object to be processed There is a problem that the flow of the object to the dust disposal chamber 68 is also limited. That is, the flow of the object to be treated to the dust disposal chamber 68 has not been considered.
  In addition, accumulation of objects to be processed in the handling chamber 66 is a cause of abnormal noise in the handling chamber 66. On the other hand, if the object to be transferred to the lower side in the conveying direction of the handling cylinder 69 is not restricted, the object to be processed is easily sent to the rear side from the handling net 74 below the handling chamber 66, There may be a decrease in recovery efficiency.
  However, by adopting this configuration, by providing the resistance guide plate (guide plate) 84, the flow to the rear side of the workpiece is limited to some extent even under heavy load conditions, and the workpiece is filtered. It is possible to prevent the workpiece from being easily sent to the rear side from the handling net 74 and to facilitate the filtration of the workpiece by the handling net 74. That is, it has a function as a resistance plate that gives resistance to the rearward transfer of the workpiece in the handling chamber 66.
On the other hand, the resistance guide plate (guide plate) 84 has a flat portion in a direction substantially orthogonal to the axis of the handling cylinder 69 and has almost no lead angle. As a result, the inside of the handling chamber 66 can be prevented from being overloaded. And the flow to the dust disposal chamber 68 of a to-be-processed object is not restrict | limited compared with the case where the lead angle is provided, and the loss reduction of a 4th grain can be aimed at. Further, it is possible to prevent the generation of abnormal noise in the handling chamber 66 even under a heavy load condition. Thus, it has a function as a guide plate for transporting the object to be processed to the dust disposal chamber 68.
That is, the resistance guide plate (guide plate) 84 functions as a resistance plate that gives resistance to the rearward transfer of the object to be processed in the handling chamber 66 and serves as a guide plate for transferring the object to be processed to the dust disposal chamber 68. With moderately combined functions.
  When the recovery chamber 66a for recovering the scorpion particles in the object to be processed is provided in the handling chamber 66 behind the communication port 101, the lead angle is provided to the resistance guide plate (guide plate) 84 as described above. Since the inside of the handling chamber 66 is not overloaded and the rearward transfer is not restricted as compared with the case where the dust is present, it is possible to appropriately collect the scorpion grains in the recovery chamber 66a, thereby improving the recovery efficiency.
Further, the guide plate 84 may be provided in front of the front middle plate 96F of the communication port 101, or as shown in FIGS. 3 and 4, a plurality of guide plates 84 may be provided on the front and rear sides of the front middle plate 96F. That is, the positions of the processing cylinders 69 in the handling chamber 66 may be shifted from each other in the conveying direction of the workpiece.
By adopting this configuration, a plurality of guide plates 84a and 84b are provided in the front-rear direction of the conveyance path of the object to be processed in the handling cylinder 69, and resistance is applied to the transfer of the object to be processed. Filtration can be promoted, and the sorting efficiency is improved. Further, by providing the guide plates 84a and 84b separately before and after in the conveyance direction of the object to be processed, the grain flows into the vicinity of the communication port 101 at a time and the load increases without increasing the load. Since the filtration from the handling net 74 is promoted even in the intermediate part from the conveyance direction starting end side of the processed material, the filtration efficiency in the handling chamber 66 is increased, and the effect of reducing the recovery loss of the third and fourth grains is improved. Rise.
In addition, as shown in FIG. 6, the guide plate 84 may be installed so that the lower end portion of the guide plate 84 is positioned at substantially the same height as the tip locus U of the teeth 69 a when the handle 69 rotates.
That is, even if the lower end portion of the guide plate 84 is extended downward until the lower end portion of the guide plate 84 overlaps the tip locus of the tooth 69a when the handle barrel 69 rotates as viewed from the conveying direction of the workpiece in the handle barrel 69. good.
  When the front and rear positions of the front end portion and the rear end portion of the guide plate 84 are changed (the lead angle is also given), the plane portion of the guide plate 84 intersects with the axis of the handling cylinder 69 at an angle. If the lower end portion of the plate 84 is installed so as to be at substantially the same height as the tip locus U of the tooth handle 69 a, the lower end portion of the guide plate 84 hits the tooth handles 69 a and 69 a before and after the handle barrel 69. Therefore, it cannot be installed in this way.
  However, according to the present embodiment, since the guide plate 84 is provided with a flat portion in a direction substantially orthogonal to the axis of the handling drum 69, the lower end is extended to the same height as the tip locus of the tooth handling 69a. However, the flat portion of the guide plate 84 is positioned between the front and rear teeth 69a and 69a and does not hit the teeth 69a.
  By adopting this configuration, the effect of adding resistance to the rearward conveyance of the object to be processed is increased by the interaction between the guide plate 84 and the teeth 69a. Therefore, even in a large combine where the speed of the feed chain 14 is fast, etc. The processing time in 66 can be kept long, and the grain loss can be reduced and the recovery loss of the third and fourth grains can be reduced.
  Further, as shown in FIG. 3 to FIG. 6, the longitudinal direction of the stock-side guide body 82 is formed on the inner surface (hand barrel 69 side) of the stock-side guide body 82 provided on the feed chain 14 side in the handling chamber 66. A stock-side partition plate (partition body) 93 that has a plate-like flat portion in a direction perpendicular to the handle and restricts the conveyance of the object to be processed to the lower side in the conveyance direction in the handling cylinder 69 may be provided.
  The object to be processed which is given resistance to the rearward conveyance by the guide plate 84 and the upper partition plate 83 on the inner surface of the handling cylinder cover 102 tends to stagnate in the handling chamber 66, but the stock provided on the feed chain 14 side. The original side partition plate 93 can prevent the object to be processed again from entering the stock of the transported cereal and prevent it from being discharged from the handling chamber 66 to the outside.
  As shown in FIG. 3, the front and rear positions of the guide plate 84 and the stockholder side partition plate 93 may be made substantially the same in the direction of conveyance of the object to be processed in the handling drum 69. Since the guide plate 84 and the stockholder side partition plate 93 block the transfer path of the object to be processed from the left and right directions in the transfer direction, the effect of stopping the dust from being supplied further to the rear of the handling chamber 66 is enhanced. The recovery loss of No. 3 and No. 4 grains is also reduced.
  Furthermore, a rear guide plate 105 may be provided on the rear side (collection chamber 66a side) in the handling chamber 66 and on the feed chain 14 side. As shown in FIGS. 7 and 8, when the rear guide plate 105 is provided behind the mesh presser 77 and protrudes from the feed chain 14 side in the handling chamber 66 to the upper side of the swing shelf 51 in the sorting chamber 50, The recovery of the scorpion grains within the lateral width of the swing shelf 51 is improved.
  When the rear guide plate 105 protrudes from the feed chain 14 side, which is the entrance side of the cereals conveyed to the handling chamber 66, to the sorting chamber 50 side, the cereals conveyed to the handling chamber 66 by the feed chain 14 are guided backwards. It flows in the direction of arrow R (FIG. 7) along the upper surface of the plate 105. Accordingly, since the cereals conveyed to the collection chamber 66a in the handling chamber 66 can be brought closer to the tooth handling 69a side of the handling drum 69, the grains that are being crushed to the stock side by the tooth handling 69a are shaved off. Can be recovered. Then, as shown in FIGS. 7 and 8, if the protruding end portion of the rear guide plate 105 from the feed chain 14 side to the sorting chamber 50 side is provided along the tip locus of the teeth 69a, the rear guide plate 105 is further provided. The scraping off is promoted by the interaction of the teeth 69a.
  In this way, even if the grain removed from the cereal being conveyed by the tooth handling 69a of the handling drum 69 is removed from the rear end of the handling chamber 66 at the terminal end, it is recovered by the second chaff sheave 54 of the swing shelf 51. It is easy to be done. Therefore, by adopting this configuration, the object to be processed on the collection chamber 66a side in the handling chamber 66 is discharged to the outside of the combine 1 from the end of the cross flow fan 91 or the swing shelf 51 behind the handling chamber 66. The recovery loss of the third grain is less likely to occur, and the grain recovery efficiency is improved.
  In addition to the rear guide plate 105, a transported culm support guide body 107 that supports the transported culm may be provided below the handling cylinder 69 to support the transported culm. The space above the swing shelf 51 is almost open. By using this space to provide the transporting culm support guide body 107, the transporting culm support guide body 107 and the tooth handling 69 a of the barrel 69 are mutually connected. The object to be processed that has been processed by the action falls on the rocking rack 51 and is collected. The transporting culm support guide body 107 is disposed obliquely in plan view with respect to the axis of the handling cylinder 69, and is inclined leftward and leftward on the upper side in the transporting direction and rightward on the lower side in the transporting direction. The tip of the waste that is conveyed by the above is supported and guided into the rotation region of the tooth 69a at the rear end of the barrel 69.
  Therefore, by adopting this configuration, almost the entire amount of the fourth grain processed and removed by the handling drum 69 on the rear side of the handling chamber 66 (recovery chamber 66a side) can be collected in the swing shelf 51. As described above, the recovery of the fourth grain in the swing shelf 51 becomes good, so that the recovery loss of the fourth grain can be reduced. Moreover, the open space can be used effectively and is economical.
  The threshing apparatus of the present invention can be used in a harvested grain processing apparatus such as a combine.
It is a left view of the combine which performs the harvesting operation | work of the grain of embodiment of this invention. It is a top view of the combine of FIG. It is side surface sectional drawing of the threshing apparatus of the combine of FIG. It is a top view of the vicinity of the barrel of the combine threshing apparatus of FIG. FIG. 4 is an elevational sectional view of the threshing device as viewed in the direction of arrows AA in FIG. 3. Fig. 4 is an elevational sectional view of the threshing device as viewed in the direction of arrows BB in Fig. 3. Fig. 4 is an elevational sectional view of the threshing device as seen from the line C-C in Fig. 3. It is the schematic perspective view which showed the structure of the handle cylinder vicinity of the threshing apparatus of the combine of FIG.
Explanation of symbols
DESCRIPTION OF SYMBOLS 1 Combine 2 Traveling frame 3 Traveling device 4 Crawler 6 Mowing device 7 Weeding tool 8 Grain raising device 9 Conveying device 14 Feed chain 15 Threshing device 18 Vertical auger 19 Horizontal auger 20 Pilot seat 30 Glen tank 50 Sorting part 51 Swing shelf 52 Transfer shelf 52a Sorting plate 53 First chaff sheave 54 Second chaff sheave 62 Strollac 63 Sorting net 64 First shelf plate 65 First spiral 66 Handling chamber 66a Recovery chamber 67 Second processing chamber 68 Dust processing chamber 68a Dust processing chamber Inlet 69 Handling cylinder 69a Teeth 69b Recovery cylinder 70 Second treatment cylinder 70a Treatment teeth
71 Dust removal processing cylinder 71a Processing teeth 71b spiral 72 Dust processing cylinder frame 74 Handling net 75 No. 2 treatment cylinder receiving net 76 Receiving net 77 Handling net retainer 78 First cereal cylinder 79 Kara 79a Kara fan 80 Wind intake 81 Resistance plate 82 Stock side guide body 83 Upper partition plate 84a, 84b Guide plate 85 Second shelf plate 86 Second spiral 87 Second lifting cylinder 88 Diffusion guide 91 Cross flow fan 93 Stock side side partition plate 95 Waste treatment Chamber 96F Front middle plate 96R Rear middle plate 97 Front plate 98 Rear plate 100 Connection frame 101 Communication port 102 Cylinder cover 105 Rear guide body 107 Conveyance cereal support guide body

Claims (3)

  1. A handling chamber (66) formed by pivoting a handling cylinder (69) having a tooth handling (69a) for separating the grain from the cereal between the front plate (97) and the rear plate (98 ). When,
    A feed chain (14) for supplying cereal meal to the chamber (66);
    A handling net (74) for filtering an object to be processed generated in the handling chamber (66);
    A swing shelf (51) for receiving and subjecting the workpiece filtered by the handle net (74) below the handle cylinder (69) to swing and select;
    The collection cylinder (69b) that collects a part of the object to be processed is defined as a collection cylinder (69b) that collects a part of the object to be processed in the conveyance direction end portion side of the object to be processed of the handling cylinder (69),
    A dust removal treatment chamber provided on the rear side of the handling chamber (66) with the dust removal treatment drum (71) that takes over and treats the workpiece that has reached the end of the conveyance barrel (69) in the conveying direction. (68)
    Communication that connects the end of the conveyance direction of the object to be processed by the cylinder (69) of the treatment chamber (66) and the start end of the direction of conveyance of the object by the dust removal treatment cylinder (71) of the dust removal treatment chamber (68). Mouth (101),
    A front intermediate plate (96F) that is provided on the conveying direction start end side of the workpiece of the communication port (101) and supports the conveying direction end portion side of the handling net (74);
    A rear middle plate (96R) provided on the end of the communication port (101) in the conveyance direction of the workpiece,
    The recovery chamber (66a) is formed between the rear middle plate (96R) and the rear plate (98),
    The plate is provided near the communication port (101), has a plate-like plane portion in a direction substantially orthogonal to the axis of the handling cylinder (69), and imparts conveyance resistance to the object to be processed in the handling chamber (66). Two or more guide plates (84) for transporting and guiding the object to be processed from the communication port (101) to the dust disposal chamber (68) side are arranged on the front side in the conveying direction of the object to be processed with the front middle plate (96F) interposed therebetween. Provided in the part and the rear part,
    A rear guide plate (105) that projects from the part to the top of the swing shelf (51) and guides an object to be processed onto the swing shelf (51) at a portion of the collection chamber (66a) on the feed chain (14) side. ) Threshing device.
  2. A resistance plate (81) for preventing the object to be processed in the chamber (66) from leaking to the outside near the supply port of the object to be processed in the chamber (66) is provided above the cylinder (69). Attached to the inside of the covering cylinder cover (102) to be installed and provided in parallel with the axial direction of the cylinder (69),
      A stocker side guide body (82) for guiding an object to be processed to the inside of the handling chamber (66) is provided at a portion between the resistance plate (81) and the handling cylinder (69),
      The stocker side guide body (82) is provided from the start end of the handling cylinder (69) in the conveyance direction to the center in a side view, and the tooth handling (69) of the handling cylinder (69) is viewed from the conveyance direction of the workpiece. 69a) a comb-tooth-shaped portion that overlaps the rotation trajectory, and a tooth-handling of the treatment barrel (69) provided from the center of the treatment barrel (69) to the end portion in the conveyance direction in a side view, as viewed from the conveyance direction of the workpiece. The threshing apparatus according to claim 1, further comprising a flat portion that does not overlap with the rotation locus of (69a).
  3. 3. A stocker side partition plate (93) that provides resistance to conveyance of an object to be processed by the handling drum (69) is provided on a surface on the handling drum (69) side of the stock source side guide body (82). Threshing equipment.
JP2007198487A 2007-07-31 2007-07-31 Threshing device Active JP5109523B2 (en)

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JPH0698621A (en) * 1992-09-18 1994-04-12 Seirei Ind Co Ltd Dust transfer-adjusting valve of threshing chamber in thresher
JP4569203B2 (en) * 2004-07-26 2010-10-27 井関農機株式会社 Thresher

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