JP2007306932A - Threshing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a threshing device provided with a grain filtering device improving filtering performance in threshing wet materials without resistance in leaking down. <P>SOLUTION: The invention relates to the grain filtering device installed in a substantially arc shape on an out side of radius than threshing teeth protruding of an outer circumference of the threshing cylinder, wherein a punched plate 50 is installed on a part with less than half length of the direction of axis of threshing cylinder (the direction of arrow head S) on a front end side outer circumference of the threshing cylinder, and a porous body 41 composed of rod like wire bodies 46a, 46b arranged like a grid with a predetermined space is arranged in the rear half side of the threshing cylinder connected to the rear end of the punched plate 50. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a structure of a threshing apparatus in which a grain filtering device is disposed in a handling room for threshing grains such as straw.

  Conventionally, for example, as disclosed in Patent Documents 1 to 3 and the like, in a handling chamber in a threshing apparatus such as a combiner, a handling cylinder having teeth treated on its outer periphery is provided to rotate, and the lower surface side of the handling chamber In this case, a crimp net is arranged on the outer periphery of the handle cylinder (on the radially outer side of the outer periphery of the handle tooth), and the tip of the cereal cone conveyed by the feed chain is positioned between the crimp net and the outer periphery of the handle cylinder. However, the threshing was carried out while feeding the cereal from the start end side of the handling cylinder to the terminal end, and the threshed grains (mixed with swarf) were filtered through the crimp net and provided below the handling chamber. While it is sorted into grains and swarf by the rocking sorting mechanism and the sorting wind by the Kara Juan placed in the lower part of the front, the grains as fine grains are collected in the most cocoon, while the branches and sticks and ears are collected. Second reduction products such as chopped grains are collected in the second receiving box, and the second reduction slot Configured threshing apparatus are known to reprocess by reducing the threshing chamber via the double-dip reducing tube from over.

The crimp net is usually made of wire made of wire knitted longitudinally and laterally with a gap, that is, a wire net.
Japanese Utility Model Publication No. 60-121741 Japanese Utility Model Publication No. 62-184421 JP-A-10-2013357

  However, in a wire mesh crimp net, as is well known, a longitudinal line body and a horizontal line body are knitted so as to have intersecting points alternately above and below, such as a weave weave, Bending parts of both wire bodies exist at the intersection of the mesh on the inner surface side of the crimp net (the side closer to the outer peripheral surface of the handling cylinder), and there is a large resistance when conveying the cereals in the axial direction of the handling cylinder. Due to its resistance, the vertical and horizontal linear bodies at the intersections of the meshes are elastically deformed, making it easy for nudges to get caught in the separated areas, making it difficult for them to come off, thereby causing clogging. There was a problem that the filtration performance was liable to deteriorate. In addition, as described above, if the swarf remains caught on the crimp net, the threshing performance and the threshing efficiency are lowered, and there is also a problem that it takes time to remove the swarf.

  The present invention has been made to solve these problems, and an object of the present invention is to provide a threshing apparatus provided with a grain filtering device that can reduce the resistance of threshing action with a simple configuration. .

Therefore, the threshing device of the invention according to claim 1 is formed in a substantially arc shape on the lower surface side of the handling chamber provided with the handling cylinder that is rotationally driven, in a portion radially outward from the handling teeth protruding on the outer periphery of the handling cylinder. A threshing device in which a grain filtering device is disposed along the threshing device,
In the grain filtering device, on the start end side of the handling cylinder, a cutting plate is arranged at a portion of half or less of the axial length of the handling cylinder, and is connected to the rear end of the cutting board. A porous body in which round rod-like wire bodies are arranged in a lattice pattern at predetermined intervals is arranged on the rear half side of the handling cylinder.

  And invention of Claim 2 is the threshing apparatus of Claim 6, In the inner peripheral surface corresponding to the middle part of the axial direction of the treatment cylinder in the connection part of the said cutting plate and a porous body, An arc-shaped partition plate is arranged, and the attachment piece fixed to the partition plate is welded and fixed to the cut-out plate via a lattice portion formed by the wire body.

  According to the first aspect of the present invention, when transferring the culm, the cereal and its tip end slide along the surface of the flat plate on the starting end side of the handling cylinder (chamber). There is little, and the filtration performance when threshing a wet material can be improved. In addition, by arranging a porous body with crossed linear bodies in the latter half, there is an effect that it is possible to reduce the amount of unhandled residue when threshing cereal with a large amount of straw.

  And invention of Claim 2 respond | corresponds to the halfway part of the axial direction of the handling cylinder in the grain filtration apparatus in the threshing apparatus of Claim 1 in the connection part of the said cutting plate and a porous body. An arc-shaped partition plate is arranged on the inner peripheral surface, and the mounting piece fixed to the partition plate is welded and fixed to the cut-out plate via the lattice portion by the wire body. Filtration performance can be improved without blocking the lattice portion with one piece.

  Next, an embodiment in which the present invention is applied to a combine will be described. FIG. 1 is a side view of a combine traveling machine body 1 having a pair of left and right traveling crawlers 2, FIG. 2 is a plan view of the traveling machine body 1, and FIG. 4 is a side sectional view of the threshing device 3 on the traveling machine body 1, FIG. 4 is an exploded perspective view of the grain filtering device to be arranged on the lower surface side of the handling chamber, and FIG. 5 is a plan view of a first reference example of the grain filtering device. 6 (a) is a partially cutaway enlarged side view of the main part, FIG. 6 (b) is a cross-sectional view of the partition plate mounting portion, FIG. 6 (c) is a plan view of the mounting portion, and FIGS. 11 (b) and 11 (c) are diagrams of the first embodiment of the grain filtering device.

  A threshing device 3 is mounted on the left side in the traveling direction of the traveling machine body 1 in the combine, and a cutting pretreatment device 4 that can be moved up and down by a hydraulic cylinder (not shown) is disposed at the front of the traveling machine body 1. A clipper-type harvesting device 5 is arranged on the lower side of the lower frame of the pre-harvest processing device 4, and six grain culling raising devices 6 are arranged on the front side. Between the front ends, a corn straw transporting device 8 is arranged, and a weeding body 9 projects in front of the lower part of the corn straw pulling device 6.

  In the threshing device 3, the rotation axis of the handling cylinder 11 in the handling chamber 10 is arranged along the traveling direction of the traveling machine body 1, and the root portion is sandwiched and conveyed by the feed chain 7 arranged at the left end of the handling chamber 10. This is a so-called underhanding type in which the tip of the cereal husk is threshed on the lower surface side of the barrel 11. On the lower surface side of the processing chamber 12 below the handling chamber 10, a grain filtering device 14 having a structure as will be described later except for the dust discharge port 13 is stretched, and the processing target that has leaked the grain filtering device 14 An object is received by a pair of front and rear feed pans 16 and 17 in a swing sorting mechanism 15 that swings back and forth along the traveling direction of the traveling machine body 1 and is subjected to swing sorting by a chaff sheave 18. At that time, the object to be processed is subjected to wind sorting by the tang fan 18 below and the dust feed fan 20 which blows air to the pair of front and rear feed pans 16 and 17 while being subjected to wind sorting in the direction of the most receiving pan 23 from the grain pan 21 and the sorting net 22. Fall. A processing cylinder 29 is disposed in the processing chamber as described later on the side of the processing chamber 10, and a part of the processing object is sent in the direction of the processing cylinder 29 on the rear side of the processing cylinder 11 to further thresh. It is processed.

  The second processed material dropped from the rear chaff sheave of the swing sorting mechanism 15 is received by the second receiving rod 24 and discharged onto the sieve wire 26 through the screw conveyor 24a and the second reducing conveyor 25, and again. Receive selection. The grain which has been subjected to the rocking sorting and wind sorting to become fine grains is connected to the horizontal screw conveyor 23a of the first receiving bowl 23 and the tip of the first receiving bowl 23, and inside the discharge cylinder 28 standing vertically. Are collected in a grain tank 27 adjacent to the threshing chamber 10 (on the right side of the traveling machine body 1).

  In addition, the grain (processed object) accumulated to a certain extent in the grain tank 27 is carried out via the discharge auger 30 in order to reload it onto a loading platform of a transport truck (not shown) stopped at the shore or the like. Is done. In this case, the horizontal cylinder 30a of the discharge auger 30 is configured to be turnable to the left and right with respect to the vertical cylinder 30b, and to be able to turn up and down. On the other hand, the dust in the processing chamber 12 is discharged to the outside by the suction fan 31, and the waste inherited at the rear end of the feed chain 7 is discharged to the rear of the traveling machine body 1 in a long state via the waste chain 32. Or, after being cut appropriately by the waste cutter 33, the paper is discharged. In addition, the code | symbol 34 is the operator's cab arrange | positioned at the front right side (front side of the grain tank 27) of the traveling body 1.

  Next, a configuration of a reference example of the grain filtering device 14 disposed on the lower surface side of the handling chamber 10 will be described with reference to FIGS. In FIG. 4, a support shaft of a handling cylinder 11 (not shown) is rotatably supported between a front plate 10 a and a rear plate 10 b of the handling chamber 10. A plurality of connecting members 40a, 40b and the like for connecting the front plate 10a and the rear plate 10b are provided with mounting pins protruding from a peripheral frame portion of a support frame portion 42 for supporting a porous body 41 described later. 43 and 44 are inserted and positioned, and fixed by bolts and nuts 45a and 45b. The porous body 41 in the present reference example is disposed along a substantially arc shape at a portion radially outward from the protruding handle teeth 11a (see FIG. 11) on the outer periphery of the handle cylinder 11, and is a vertical and horizontal round bar-shaped linear body. 46a and 46b are arranged in a grid pattern with a predetermined interval, and one of the linear bodies 46a extends in the axial direction of the handling cylinder 11 (in the direction of arrow S in FIG. 5) and outside the radius. The other wire body 46b is arranged so as to be disposed so as to extend along the rotation direction (the direction of arrow D in FIG. 5) of the handling cylinder 11 at the inner periphery of the one wire body 46a. It is a thing. In addition, the lattice portion 41 a in the porous body 41 is preferably formed in a rectangular shape that is long along the axial direction of the handling cylinder 11 (direction of arrow S in FIG. 5) and short along the circumferential direction of the handling cylinder 11. . The end of the porous body 41 is welded and fixed to the peripheral frame portion 42 a and the like of the support frame portion 42. 4 and 5, a portion where one corner portion of the support frame portion 42 is cut out becomes a dust discharge port 13 through which sawdust falls into the lower processing chamber 12.

  And in the grain filtration apparatus 14, the circular-arc-shaped partition plate 47 is arrange | positioned in the internal peripheral surface corresponding to the middle part of the axial direction of the handling cylinder 11 in the said porous body 41. As shown in FIG. The partition plate 47 receives a handling action between a handling cylinder rotating in a direction orthogonal to the transfer direction and a porous body 41 on the outer periphery thereof while transferring the cereal from the start end side to the end direction of the handling chamber. The part is temporarily retained in transport to promote the handling action. The partition plate 47 is formed to be short on the lower surface side of the handling cylinder 11 and become taller as it goes upward.

  Attaching pieces 49 fixed by welding or the like to a plurality of locations separated at appropriate intervals in the longitudinal direction of the partition plate 47 extend radially outward via the lattice portions 41a by the linear bodies 46a and 46b, and are porous bodies. Among the support frame portions 41 of 41, a plurality of reinforcing frame portions 42b, such as plates, that connect between the arc-shaped peripheral frame portions in the axial direction of the handle cylinder 11 are fixed by welding (FIG. 6A). 6 (b), FIG. 6 (c) and FIG. 7).

  As shown in FIGS. 6 (b), 6 (c) and 7, the partition plate 47 and the reinforcing frame part 42b are arranged so as to be orthogonal to each other. 5 is bent in an L-shaped cross-section, and in FIG. 5, when the cereals are transferred from the left side (starting end side of the handling cylinder 11) to the right side (terminal end side of the handling cylinder 11) in the handling chamber 10. Moreover, it is preferable to fix to the back side of the partition plate 47 so that the cereals are not easily entangled (see FIGS. 6B and 6C).

  As shown in this reference example, when the porous body 41 is configured by orthogonally arranged linear bodies 46a and 46b, the linear bodies 46a and 46b have their intersections (four corners of the lattice portion 41a) as compared with the ordinary wire mesh structure. Part) is not bent so as to be uneven in the radial direction of the handling cylinder 11, so that it is difficult for the sawdust to be caught or clogged. In addition, since the rotation direction of the teeth 11a of the handle 11 and the direction in which the linear body 42b on the inner peripheral side (the side closer to the tip of the teeth 11a) extends are parallel to each other, It can be handled efficiently and so-called unhandled items are reduced.

  Further, since the partition plate 47 is formed in a thin plate shape in the width direction of the handling cylinder 11 and the mounting piece 49 is fixed to this one surface (back surface), the opening of the lattice portion 41a in the vicinity of the location where the partition plate 47 is disposed. The area can be prevented from being greatly blocked, and the filtration efficiency of the grain filtration device 14 can be improved.

  In the second reference example shown in FIGS. 8 and 9, the second embodiment is applied to the grain filtering device 14 disposed below the second processing chamber disposed adjacent to the side or rear side of the handling chamber 10. In addition, a large number of processing teeth 29a similar to the tooth handling 11a project from the outer periphery of the processing cylinder 29 (see FIG. 3) in the second processing chamber. In the present invention, the handling chamber is a concept including the second processing chamber, and the handling cylinder is a concept including the processing cylinder 29. Of the linearly arranged linear bodies 46a and 46b constituting the porous body 41 in the grain filtering device 14, one linear body 46b extends along the rotation direction of the processing cylinder 29 (the direction of arrow S in FIG. 8), Further, the other wire body 46a is disposed outside the radius, and the other wire body 46a is disposed so as to extend in the axial direction of the processing cylinder 29 (in the direction of arrow D in FIG. 8) on the inner periphery of the one wire body 46b. It is configured in combination.

  As described above, when the lattice portions are formed by the linearly arranged linear bodies 46a and 46b, the linear bodies 46a and 46b have their intersections (lattice portions) as compared with the normal wire mesh structure as in the first embodiment. The four corners) are not bent so as to be uneven in the radial direction of the processing cylinder 29, so that it is difficult for hook dust to be caught or clogged. Then, by arranging a linear body on the side close to the outer peripheral surface of the processing cylinder 29 in the radial direction so as to extend in the axial direction of the processing cylinder 29, the workpiece is transferred from the start end side to the end side of the processing cylinder 29. As the slippage is good, the filtration performance when the material to be treated is a wet material can be improved as in the case of cutting and threshing after rain.

  Needless to say, the arrangement structure of the linear bodies 46a and 46b of the second reference example can be applied to the handling chamber 11 of the first reference example.

  The grain filtration device 14 of the first embodiment shown in FIG. 10, FIG. 11 (a), FIG. 11 (b) and FIG. 11 (c) is on the lower surface side of the handling chamber 10 as in the first reference example. It is arranged along a substantially arc shape at a portion radially outward from the protruding tooth 11a on the outer periphery of the handling cylinder, and at the start end of the handling cylinder 11 in the support frame portion 42, the handling cylinder 11 is arranged. A cutting plate 50 is arranged in a portion (about one third in the embodiment) that is not more than half of the length of the cylinder 11 in the axial direction (arrow S direction in FIG. 10), and at the rear end of the cutting plate 50. A porous body in which round bars 46a, 46b similar to those in the first reference example or the second reference example are arranged in a lattice pattern at predetermined intervals on the rear half side of the handling cylinder 11 that are continuously provided. 41 is arranged. In the cutout plate 50, a large number of rectangular cutout holes 51 similar to the rectangular lattice portions formed by the orthogonal wire bodies 46a and 46b are formed (see FIG. 10). . The arrangement of the two-direction linear bodies 46a and 46b in the first embodiment is such that one linear body 46b extends along the rotation direction of the handling cylinder 11 (the direction of arrow S in FIG. 10) and is outside the radius. The other wire body 46a is arranged close to each other, and is configured so as to be disposed so as to extend in the axial direction of the handle cylinder 11 (the direction of arrow D in FIG. 10) on the inner periphery of the one wire body 46b. It is a thing.

  Then, an arc-shaped partition plate 47 similar to that of the first reference example is provided on an inner peripheral surface corresponding to a midway portion in the axial direction of the handling cylinder 11 in the connecting portion between the cutout plate 50 and the porous body 41. The mounting piece 52, which is arranged and fixed to the partition plate 47 by welding or the like, is welded and fixed to the cut-out plate 50 via a lattice portion 41a formed by the wire bodies 46a and 46b. In this case, the metal plate mounting piece 52 is bent in an L shape as shown in FIGS. 11 (b) and 11 (c), and the rear side of the partition plate 47 (the end side of the handling cylinder). It is welded to.

  By disposing the cutting plate 50 on the start end side of the handling chamber 10, when transferring the cereal, the cereal and the tip of the cereal slide along the surface of the flattened cutting plate 50, so that there is little resistance, and the moisture The filtration performance when threshing the material can be improved. Moreover, the arrangement | positioning of the porous body 41 by the linear bodies 46a and 46b orthogonal to the second half part can reduce the unhandled residue at the time of threshing the cereal with a large amount of straw.

It is a side view of a combine. It is a top view of a combine. It is side sectional drawing of a threshing apparatus. It is a component disassembled perspective view of a handling chamber. It is a top view of the filtration apparatus of the 1st reference example. (A) is a principal part enlarged side view, (b) is VIb-VIb arrow sectional drawing of Fig.6 (a), (c) is VIc-VIc arrow plan view of Fig.6 (a). It is a perspective view of the attaching part of a partition plate. It is a top view of the filtration apparatus of the 2nd reference example. It is a partially cutaway principal part enlarged side view. It is a top view of the filtration apparatus of a 1st embodiment. (A) is a principal part enlarged side view, (b) is XIb-XIb arrow sectional drawing of Fig.11 (a), (c) is a Xic-XIc arrow plan view of Fig.6 (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Threshing apparatus 10 Handling chamber 11 Handling cylinder 11a Teeth 14 Grain filtration apparatus 41 Porous body 42 Support frame part 46a, 46b Linear body 47 Partition plate 49, 52 Mounting piece 50 Scale plate

Claims (2)

A threshing device in which a grain filtering device is disposed along a substantially arc shape on a lower surface side of a handling chamber provided with a rotationally driven handling cylinder and radially outward from a protruding tooth handling tooth on the outer periphery of the handling cylinder. Because
In the grain filtering device, on the start end side of the handling cylinder, a cutting plate is arranged at a portion of half or less of the axial length of the handling cylinder, and is connected to the rear end of the cutting board. A threshing apparatus, wherein a porous body in which round rod-like wire bodies are arranged in a grid at predetermined intervals is arranged on the rear half side of the handling cylinder.   An arc-shaped partition plate is arranged on the inner peripheral surface corresponding to the middle portion in the axial direction of the handling cylinder in the connecting portion of the cut-out plate and the porous body, and the attachment piece fixed to the partition plate is the line The threshing apparatus according to claim 1, wherein the threshing apparatus is fixed by welding to the cut-out plate through a lattice portion formed by a body.

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