JP2014161262A - Ordinary type combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ordinary type combine harvester in which a feeder can be easily attached to an inlet of a threshing device.SOLUTION: An ordinary type combine harvester comprises: a threshing device; a feeder 5 that conveys reaped grain culms to the threshing device; a pair of right and left cover plates 57 that covers clearances between an inlet of the threshing device and both side portions at an outlet side end portion of the feeder 5; and distance changing mechanisms 58 that can change a horizontal distance between the pair of right and left cover plates 57.

Description

  The present invention relates to an ordinary combine. More specifically, the present invention relates to an ordinary combine combiner provided with a feeder that conveys a harvested cereal meal to a threshing device.

  As the above-described ordinary combine, for example, the ordinary combine described in Patent Document 1 is already known. In the ordinary combine described in Patent Document 1, the harvested cereal meal is conveyed to the threshing device by a feeder.

  Here, there is a gap between both lateral sides at the outlet end of the feeder and the inlet of the threshing device. From the gap at the outlet end of the feeder, the grains contained in the harvested cereal culm Grain may leak out. Therefore, it is common practice to cover the gap at the outlet side end of the feeder with a pair of left and right cover members.

JP 2012-210164 A

  In a conventional ordinary combine, a pair of left and right cover members are welded and fixed to the inlet of the threshing apparatus, or are provided integrally with the inlet of the threshing apparatus. And the left-right distance between the pair of left and right cover members is set to a length that is substantially the same as the width of the outlet side end of the feeder, from the viewpoint of effectively preventing the grains contained in the harvested cereal from leaking. ing. For this reason, when attaching a feeder to the entrance of a threshing apparatus, since a pair of right and left cover members gets in the way, it is difficult to attach the feeder to the entrance of the threshing apparatus.

  This invention is made | formed in view of the above situations, and it aims at providing the normal combine which is easy to perform the operation | work which attaches a feeder to the entrance of a threshing apparatus.

  The characteristic of this invention covers the clearance gap which exists between the threshing apparatus, the feeder which conveys the harvested cereal meal to the threshing apparatus, and both the lateral sides at the outlet side end of the feeder and the inlet of the threshing apparatus A pair of left and right cover members and an interval changing mechanism capable of changing a left and right interval between the pair of left and right cover members.

  According to this characteristic configuration, when the feeder is attached to the entrance of the threshing apparatus, the left-right distance between the pair of left and right cover members can be widened by the distance changing mechanism. Thereby, the operation | work which attaches a feeder to the entrance of a threshing apparatus is easy.

  Furthermore, in this invention, it is suitable for the said space | interval change mechanism when the said cover member is slidably supported by the said threshing apparatus.

  According to this characteristic configuration, the left-right distance between the pair of left and right cover members can be easily changed by simply sliding the cover member.

  Furthermore, in this invention, the said space | interval change mechanism is a long hole in the left-right direction formed in either one of the said cover member and the said threshing apparatus, The fastener which fastens the said cover member to the said threshing apparatus, Is preferably provided.

  According to this characteristic configuration, the interval changing mechanism can be easily configured by the long hole and the fastener.

  Furthermore, in this invention, when the said space | interval change mechanism supports the said cover member on the said threshing device so that attachment or detachment is possible, it is suitable.

  According to this characteristic configuration, the left-right distance between the pair of left and right cover members can be easily changed by simply attaching and detaching the cover member.

  Furthermore, in this invention, the said space | interval change mechanism is equipped with the fastener which fastens the said cover member to the said threshing apparatus, The exit side edge part of the said feeder is supported by the bearing member so that an up-down swing is possible, The said bearing member Is preferably fastened to the threshing device by the fastener together with the cover member.

  According to this characteristic structure, a bearing member and a cover member can be put together and can be easily fastened to a threshing apparatus with a fastener.

  Furthermore, in this invention, it is suitable when the said cover member is arrange | positioned between the said bearing member and the said threshing apparatus.

  According to this characteristic structure, a cover member can be arrange | positioned compactly between a bearing member and a threshing apparatus. Further, since the bearing member does not get in the way of covering the gap at the outlet side end portion of the feeder with the cover member, the gap at the outlet side end portion of the feeder is easily covered with the cover member.

  Furthermore, in this invention, it is suitable when the temporary fixing tool which temporarily fixes the said cover member to the said threshing apparatus is provided.

  According to this characteristic configuration, when both the bearing member and the cover member are fastened to the threshing device with the fastener, the cover member can be temporarily fastened to the threshing device with the temporary fastener, and thus these are fastened. Easy to work.

  Furthermore, in the present invention, it is preferable that the temporary fastener is temporarily fixed to the threshing device at a substantially central portion in the vertical direction of the cover member.

  According to this characteristic configuration, the substantially central portion of the cover member in the vertical direction is temporarily fixed to the threshing device with the temporary stopper, so that the posture of the cover member in the state temporarily fixed with the temporary stopper is stabilized.

  Furthermore, in the present invention, it is preferable that the bearing member is formed with a recess for avoiding interference with the temporary fastener.

  According to this feature configuration, even if the cover member is temporarily fixed to the threshing device with the temporary fastener, the temporary fastener does not interfere with the bearing member, so the bearing member and the cover member are fastened together. The tool can be fastened to the threshing device.

  Furthermore, in the present invention, it is preferable that the temporary fastener is made of resin.

  According to this feature configuration, since the temporary fastener is made of resin, the temporary fastener allows a certain degree of deformation. Therefore, even if the bearing member and the cover member are both fastened to the threshing device with the fastener while the cover member is temporarily fixed with the temporary fastener, the change in the left and right distance between the pair of left and right cover members by the distance changing mechanism is performed. Will not be disturbed.

It is a side view which shows a combine. It is a top view which shows a combine. It is side surface sectional drawing which shows a threshing apparatus. It is a front view which shows a red pepper. It is a side view which shows the exit side edge part of a threshing apparatus and a feeder. It is front sectional drawing which shows the exit side edge part of a threshing apparatus and a feeder. It is a plane sectional view showing a feeder. It is side surface sectional drawing which shows the exit side edge part of a feeder. It is a plane sectional view showing the exit side end part of a feeder. It is front sectional drawing which shows the exit side edge part of a feeder.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  First, the overall structure of the combine will be described with reference to FIGS. 1 and 2.

  1 and 2 show a normal combine as an example of a combine for harvesting crops such as rice and wheat. At the front part of the combine, there is a cutting part 1 for cutting the planted cereal. A crawler-type traveling device 2 capable of traveling in the agricultural field is provided behind the cutting unit 1. An airframe frame 3 is provided on the upper part of the traveling device 2.

  On the left side of the machine frame 3, a threshing device 4 for threshing the harvested cereal meal is placed and supported. Between the threshing device 4 and the reaping unit 1, a feeder 5 that conveys the reaped cereal from the reaping unit 1 to the threshing device 4 is provided. An outlet side end portion (rear end portion) of the feeder 5 is supported via a drive shaft 50 so as to be vertically swingable. An operation unit 6 and an engine 7 are placed and supported on the front right side on the body frame 3. The engine 7 is accommodated in the lower part of the driving unit 6. Further, a hopper type grain take-out unit 9 for taking out the grain after threshing is placed and supported on the right rear part on the body frame 3.

  The combine harvests the planted cereal with the cutting unit 1 while traveling on the field with the traveling device 2, conveys the harvested cereal to the threshing device 4 with the feeder 5, and threshs the harvested cereal with the threshing device 4. The subsequent grain can be taken out from the grain takeout part 9.

  Next, the threshing apparatus 4 will be described with reference to FIGS. 3 and 4.

  As shown in FIG. 3, a handling chamber 40 is formed in the upper part of the threshing device 4. A handling cylinder 41 for threshing treatment is provided in the handling chamber 40 so as to be rotatable around a longitudinal axis Y. Below the handling cylinder 41, a receiving net 42 is provided for leaking a processed product (threshing processed product) obtained by the threshing process.

  At the lower part of the threshing device 4, there are provided a swing sorting device 43 for swing sorting and a tang 44 for wind sorting. Behind the tang 44, a first recovery part 45 for recovering the first grain and a second recovery part 46 for recovering the second grain are provided in order from the front. The most recovery unit 45 is provided with the most transverse screw 45A for conveying the grain in the left-right direction. The second recovery part 46 is provided with a second horizontal screw 46A for conveying the grains in the left-right direction.

  In the threshing device 4, the harvested grain is threshed by the handling cylinder 41, and the processed product (threshing processed product) obtained by the threshing process leaks from the receiving net 42. Then, the threshing processed material leaked from the receiving net 42 is subjected to swing sorting by the swing sorting device 43 and wind sorting by the Kara 44. Thereby, the single grain with a large specific gravity is recovered as the first thing in the first recovery part 45 in the front, and the grain with a branch branch with a small specific gravity is recovered as the second thing in the second recovery part 46 at the rear. Collected.

  As shown in FIG. 4, the Kara 44 includes a Kara axis 44 </ b> A facing left and right, and four blades 44 </ b> B supported by the Kara axis 44 </ b> A. The blade 44B and the tang shaft 44A are connected by two connecting arms 44C on the left and right. The connecting arm 44C includes a boss portion 44D connected to the Karatsu shaft 44A and four arms 44E extending substantially radially from the boss portion 44D.

  The base end portion of the arm 44E is fixed to the boss portion 44D by welding. A blade 44B is fixed by welding to the tip end side of the arm 44E. The width W1 on the proximal end side of the arm 44E is narrower than the width W2 on the distal end side of the arm 44E. A cutout 44F is formed on the base end side of the arm 44E. Specifically, a notch 44F is formed at the boundary between the proximal end side of the arm 44E and the distal end side. The notch 44F is formed in, for example, a substantially semicircular shape. By forming the notch 44F on the base end side of the arm 44E, the stress generated on the base end side of the arm 44E can be reduced.

  Next, the feeder 5 will be described with reference to FIGS.

  As shown in FIGS. 5 to 7, the outlet side end portion (rear end portion) of the feeder 5 has a pair of left and right bearing brackets 51 (the “bearing member” according to the present invention) that can swing up and down via a drive shaft 50. Is equivalent). The feeder 5 is provided with a feeder case 52 that allows the reaping unit 1 and the threshing device 4 to communicate with each other. The gap that exists between both lateral sides (both left and right sides) at the outlet side end of the feeder case 52 and the inlet of the threshing device 4 corresponds to a pair of left and right cover plates 57 (a “cover member” according to the present invention). ). A driven rotating body 53 is rotatably supported at the inlet side end (front end) of the feeder case 52. A drive rotating body 54 is rotatably supported at the outlet side end portion (rear end portion) of the feeder case 52. A transport chain 55 is wound around the driven rotating body 53 and the driving rotating body 54. In the feeder 5, the drive turning body 54 and the follower turning body 53 are rotated so that the harvested cereal culm is transported to the threshing device 4 by the transport chain 55.

  The drive rotating body 54 is provided on the drive shaft 50. The left and right ends of the drive shaft 50 protrude laterally outward from the left and right side plates of the feeder case 52. Both left and right end portions of the drive shaft 50 are rotatably supported by a pair of left and right bearing brackets 51. The pair of left and right bearing brackets 51 are fastened to the pair of left and right threshing frames 47 by bolts 56 (corresponding to a “fastener” according to the present invention).

  Next, the cover plate 57 and the interval changing mechanism 58 will be described with reference to FIGS.

  As shown in FIGS. 8 to 10, the pair of left and right cover plates 57 are fastened to the pair of left and right threshing frames 47 with bolts 56. That is, the bearing bracket 51 is fastened to the threshing frame 47 by the bolt 56 together with the cover plate 57. The cover plate 57 is a plate-like member formed in a substantially L shape in plan view. Specifically, the cover plate 57 includes a side plate 57A along the lateral side surface of the feeder case 52 and a front plate 57B along the front surface of the threshing frame 47.

  The side plate 57A is disposed between the left and right of the bearing bracket 51 and the side plate of the feeder case 52. The side plate 57A is formed with a notch 57a larger than the diameter of the drive shaft 50. The notch 57a is for avoiding interference with the drive shaft 50.

  The front plate 57B is disposed between the front and rear of the bearing bracket 51 and the threshing frame 47. That is, the front plate 57B is sandwiched and supported by the bearing bracket 51 and the threshing frame 47. The front plate 57B has a plurality of long holes 57b through which the bolts 56 are inserted. The long hole 57b is a long hole that is long in the left-right direction. The number of the long holes 57b is, for example, four. Further, the front plate 57B is formed with a temporary fixing hole 57c through which the temporary fixing tool 59 is inserted.

  The temporary fixing hole 57c is formed in a substantially central portion of the front plate 57B in the vertical direction. That is, the temporary fixing hole 57c is formed at the upper and lower intermediate positions of the four long holes 57b in the front plate 57B. Specifically, among the four long holes 57b in the front plate 57B, the temporary fixing hole 57c is located at an intermediate position between the second long hole 57b from the top and the third long hole 57b from the top. Is formed. The temporary fixing hole 57c is a long hole that is long in the left-right direction.

  The temporary fastener 59 temporarily secures the cover plate 57 to the threshing frame 47. The temporary fastener 59 is a resin clip. The temporary fastener 59 temporarily secures the substantially central portion of the cover plate 57 in the vertical direction to the threshing frame 47. The threshing frame 47 is formed with a temporary fixing hole 47a through which the temporary fixing tool 59 is inserted.

  The interval changing mechanism 58 can change the left / right interval between the pair of left and right cover plates 57. The interval changing mechanism 58 supports the cover plate 57 to be slidable and detachable on the threshing frame 47. Specifically, the interval changing mechanism 58 includes a long hole 57b formed in the front plate 57B and extending in the left-right direction, and a bolt 56 for fastening the cover plate 57 to the threshing frame 47.

  Next, a method for fastening both the cover plate 57 and the bearing bracket 51 to the threshing frame 47 with the bolt 56 and a method for changing the left-right distance between the pair of left and right cover plates 57 with the interval changing mechanism 58 will be described.

  Here, the bearing bracket 51 is formed with a bolt hole 51a through which the bolt 56 is inserted. The threshing frame 47 is formed with bolt holes 47c and 47d through which the bolts 56 are inserted. A welding nut 47b is provided in the bolt hole 47c. The bolt hole 47d is formed in the shaft portion 47e.

  First, in order to fasten both the cover plate 57 and the bearing bracket 51 to the threshing frame 47 with the bolts 56, the cover plate 57 is temporarily fixed to the threshing frame 47 with the temporary fasteners 59. Specifically, the temporary fixing tool 59 is inserted into the temporary fixing hole 57 c of the cover plate 57 and the temporary fixing hole 57 c of the threshing frame 47. Thereby, the cover plate 57 can be temporarily fixed to the threshing frame 47 by the temporary fixing tool 59.

  Then, with the cover plate 57 temporarily fixed to the threshing frame 47 with the temporary fastener 59, the bolt holes 51a of the bearing bracket 51, the long holes 57b of the cover plate 57, the bolt holes 47c of the threshing frame 47 and the welding nut 47b. Then, the bolt 56 is inserted into the bolt hole 47 d of the threshing frame 47. Thereby, both the cover plate 57 and the bearing bracket 51 can be fastened to the threshing frame 47 with the bolts 56.

  Here, the bearing bracket 51 is formed with a recess 51 b in order to avoid interference with the temporary fastener 59. The recess 51b is formed larger than the portion of the temporary fastener 59 that protrudes from the threshing frame 47. Thereby, even if the cover plate 57 is temporarily fixed to the threshing frame 47 by the temporary fastener 59, the temporary fastener 59 does not interfere with the bearing bracket 51. Therefore, the bearing bracket 51 and the cover plate 57 Can be fastened to the threshing frame 47 with bolts 56.

  Then, by loosening the bolt 56, the cover plate 57 can be slid in the left-right direction along the long hole 57b. That is, the left-right distance between the pair of left and right cover plates 57 can be changed. At this time, only one of the pair of left and right cover plates 57 may be slid, or any of the cover plates 57 may be slid.

  Further, the cover plate 57 can be removed from the threshing frame 47 by removing the bolt 56. That is, the left-right distance between the pair of left and right cover plates 57 can be changed. At this time, only one of the pair of left and right cover plates 57 may be removed, or any cover plate 57 may be removed.

  With the above configuration, when the feeder 5 is attached to the entrance of the threshing device 4, the left-right distance between the pair of left and right cover plates 57 can be increased by the interval changing mechanism 58. Thereby, the operation | work which attaches the feeder 5 to the entrance of the threshing apparatus 4 is easy.

  Hereinafter, another embodiment according to the present invention will be described.

(1) In the above embodiment, any cover plate 57 of the pair of left and right cover plates 57 is supported by the threshing device 4 so as to be slidable and detachable by the interval changing mechanism 58. Only one of the cover plates 57 may be supported by the threshing device 4 so as to be slidable and detachable by the interval changing mechanism 58.

(2) In the above embodiment, the interval changing mechanism 58 supports the cover plate 57 to be slidable and detachable on the threshing device 4, but the interval changing mechanism 58 can slide the cover plate 57 to the threshing device 4. Further, the cover plate 57 may be supported so as not to be detachable, or the cover plate 57 may be supported on the threshing device 4 so as not to be slidable and detachable.

(3) In the above embodiment, the cover plate 57 is a plate-like member, but the “cover member” exists between both lateral sides at the outlet side end of the feeder case 52 and the inlet of the threshing device 4. As long as it covers the gap, the plate-like member may not be used.

(4) In the above embodiment, the long hole 57 b is formed in the cover plate 57, but the long hole 57 b may be formed in the threshing device 4.

(5) In the above embodiment, the number of the long holes 57b is four, but the number of the long holes 57b may be three or less, or five or more.

(6) In the above embodiment, the temporary fastener 59 is a resin clip, but the temporary fastener 59 may be a resin pin or the like that has a retaining effect, or a metal one.

  INDUSTRIAL APPLICABILITY The present invention can be used for an ordinary combine combiner provided with a feeder that conveys a harvested cereal meal to a threshing apparatus.

4 Threshing device 5 Feeder 51 Bearing bracket (bearing member)
51b Recess 56 Bolt (fastener)
57 Cover plate (cover member)
57b Long hole 58 Spacing changing mechanism 59 Temporary fastener

Claims (10)

A threshing device;
A feeder for conveying the harvested cereal meal to the threshing device;
A pair of left and right cover members covering a gap existing between both lateral sides at the outlet side end of the feeder and the inlet of the threshing device;
A normal type combine comprising: an interval changing mechanism capable of changing an interval between left and right of the pair of left and right cover members.   The normal type combine according to claim 1, wherein the interval changing mechanism allows the cover member to be slidably supported by the threshing device.   The said space | interval change mechanism is provided with the elongate hole long in the left-right direction formed in either one of the said cover member and the said threshing apparatus, and the fastener which fastens the said cover member to the said threshing apparatus. Normal type combine described.   The normal type combine according to claim 1, wherein the interval changing mechanism detachably supports the cover member on the threshing device. The interval changing mechanism includes a fastener that fastens the cover member to the threshing device,
The outlet side end of the feeder is supported by the bearing member so as to be swingable up and down,
The said bearing member is a normal type combine as described in any one of Claim 2-4 fastened to the said threshing apparatus with the said fastener with the said cover member.   6. The ordinary combine according to claim 5, wherein the cover member is disposed between the bearing member and the threshing device.   The ordinary combine according to claim 6, further comprising a temporary fastener that temporarily fixes the cover member to the threshing device.   The said temporary fastener is a normal type combine of Claim 7 which temporarily fixes the approximate center part of the up-down direction in the said cover member to the said threshing apparatus.   9. The ordinary combine according to claim 8, wherein the bearing member is formed with a recess for avoiding interference with the temporary fastener.   The ordinary combine according to any one of claims 7 to 9, wherein the temporary fastener is made of resin.

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