JP2000342054A - Second returning device in thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a second returning device in a thresher, which can throw and release ungraded grains from the discharging port of a second returning cylinder vertically disposed behind a threshing chamber. SOLUTION: In this thresher C, a shaking grader 40 is spanned in a grading wind passage 47 formed from a place under a threshing chamber 36 to a dust- grading and discharging chamber 38 in the rear portion of a machine frame. The first gutter 24 is laterally disposed below the shaking grader 40, and the second gutter 28 is also disposed behind the first gutter 24. Ungraded grains are lifted, transferred and again graded through the second gutter 28 and the second returning cylinder 30 connected to the final end of the second gutter 28. The second returning cylinder 30 is vertically disposed behind the threshing chamber 36, and an opening 60a is disposed under the rear side plate 60 of the threshing chamber and on the side of the second returning cylinder 30. The ungraded grains are thrown and released from the discharging port 30a of the second returning cylinder 30 toward the starting end side of the shaking grader 40 through the opening 60a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing machine, and more particularly, to a threshing machine capable of discharging unsorted grains from a discharge port of a No. 2 reduction cylinder toward a starting end of a swing sorting body. It relates to a reduction device.

[0002]

2. Description of the Related Art A threshing machine mounted on a combine or the like has, for example, a handling cylinder and a processing cylinder, and the handling cylinder and the processing cylinder are rotatable around a rotation axis along a feeding direction of the grain culm. The receiving nets are respectively disposed substantially below a predetermined distance from the outer peripheral surfaces of the handling cylinder and the processing cylinder. An oscillating flow plate is provided below these receiving nets, and a straw rack, a crimping net, and the like are provided below or downstream of the processing cylinder.

[0003] A first gutter is provided below the crimping net, and a lifting cylinder is linked to the end of the first gutter in the transfer direction. The grain that has leaked from the plant is lifted and transported to the Glen tank. Also,
Behind the first gutter, a second gutter is provided substantially in parallel with the first gutter, and at the end side in the transfer direction of the second gutter,
A second reduction cylinder for discharging unsorted grains onto the oscillating flow grain plate is linked.

[0004]

Conventionally, in a relatively medium-sized threshing machine, the second reduction cylinder is arranged so as to be inclined forward of the fuselage so as to intersect with the fry cylinder. Thus, the discharge port of the second reduction cylinder faces within the width of the handling chamber, whereby the unsorted grains are discharged to the start end side of the oscillating flow grain plate, so that a sufficient sorting action can be obtained. . But,
If the second reduction cylinder and the frying cylinder are arranged crossing each other, the overall width (width) of the threshing unit becomes large, and thus cannot be used in a small threshing machine.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a swing sorter from a discharge port of a second reduction cylinder erected at the rear of a handling room. It is an object of the present invention to provide a second reduction device in a threshing machine capable of throwing and discharging unsorted grains.

[0006]

In order to achieve the above-mentioned object, the invention according to the first aspect of the present invention is directed to a sorting air passage formed from a lower portion of a handling room (36) to a dust sorting room (38) at the rear of the fuselage. A swing sorter (40) is erected on 47), a first gutter (24) is provided below the swing sorter (40), and a second gutter (28) is provided behind the first gutter (24). 28) and a second threshing cylinder (30) connected to the terminal end thereof, the unsorted kernels are lifted and transferred onto the oscillating sorter (40), and a threshing machine ( In C), the second reduction cylinder (30) is erected behind the handling chamber (36), and an opening (60) is formed in the handling chamber rear side plate (60) on the second reduction cylinder (30) side.
a) is provided so that unsorted kernels can be thrown and discharged from the discharge port (30a) of the second reduction cylinder (30) toward the start end side of the swing sorter (40) by the opening (60a). , Characterized in that.

According to a second aspect of the present invention, the discharge port (3
0a) is formed at the upper end of the second reduction cylinder (30), and the discharge port (30a) is opened near the lower side of the handling chamber (36).

[Operation] On the basis of the above-mentioned invention specific matter, the threshing machine (C) to which the present invention is applied is provided with a sorting air passage (from the lower part of the handling room (36) to the dust sorting room (38) at the rear of the machine. 47) is formed, a swing sorting body (40) is erected in the sorting wind path (47), and further the swing sorting body (4) is formed.
The unsorted kernels (4) are disposed below the rocking sorter (4) through a second gutter (28) and a second reducing cylinder (30) provided below the lower part of the rocking sorter (4).
0) It is lifted and transported and re-sorted. In the present invention, the second reduction cylinder (30) is erected behind the handling chamber (36), and an opening (60a) formed on the second reduction cylinder (30) side of the handling chamber rear side plate (60). ), Unsorted kernels are thrown and discharged from the discharge port (30a) formed at the upper end of the second reduction cylinder (30) toward the start end side of the swing sorting body (40). As a result, unsorted grains are more susceptible to rocking motion, and the sorting performance is improved.

Note that the reference numerals in parentheses described above are for the purpose of comparing the drawings, and do not limit the present invention in any way.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 show the structure of a threshing machine mounted on a self-combining combiner. This threshing machine C has a handling cylinder 10 and a processing cylinder 12, and the handling cylinder 10 and the processing cylinder Power is transmitted to the body 12 by a chain or belt 57 via a pulley 56 and a gear case 58, so that the body 12 is rotatable about a rotation shaft 13 along the feeding direction of the grain culm (see FIG. 2). The handling cylinder 10 and the processing cylinder 12 have handling teeth 10a and 12a on the outer peripheral surface, respectively, and cover the lower part of the handling cylinder 10 and the processing cylinder 12 at a predetermined distance from the outer peripheral surface. In addition, receiving networks 14 and 16 are provided respectively.

The handling cylinder 10 is rotatably accommodated in a handling chamber 36, and the upper part of the handling chamber 36 is a cylinder cover 4 that can be opened and closed.
3 and the front and rear portions of the handling room 36 are the entrance side plates 3
1 and a handling room rear side plate 60. This handling room 36
A feed chain 32 is provided in the vicinity of one of the left and right sides along the rotation shaft 13 of the handling drum 10.
Is taken over by the discharge wara chain 33. When the grain culm is supplied into the handling chamber 36 by the feed chain 32, the grain culm is threshed by the teeth 10 a of the handling cylinder 10.

Next, as shown in FIGS. 3 and 4, a sorting air passage 47 is formed from below the handling chamber 36 to the dust sorting chamber 38 at the rear of the machine body.
A swing sorting body 40 is installed at the center. This swing sorter 4
Numeral 0 has an oscillating flow plate 18, a swing sheave 19, and a crimp net 22, and the swing sheave 19 is configured such that a number of fins are provided substantially in parallel, and the opening of the fins can be controlled to open and close. I have. The oscillating flow plate 18, the swing sheave 19, and the crimp net 22 can be oscillated by a drive source (not shown).

A Karino fan 46 is arranged below the oscillating flow plate 18, and a suction fan 41 is arranged above the rear part of the swing sheave 19. The Karino fan 46 and the suction fan 41 generate a wind in the direction of the Karino fan 46 toward the suction fan 41 in order to discharge unnecessary substances lighter than the grain outside the machine body. A passage 47 is formed.

Below the crimping net 22, the first gutter 2
4 is provided horizontally, and the kernels leaked from the crimping net 22 are used for the grain tank or hopper 45 (see FIG. 4) by the first gutter 24 and the frying cylinder 26 connected to the end side in the transport direction.
Is lifted and transferred. In the first gutter 24 and the fryer 26,
No. 1 helical 2 with helical blades each driven to rotate
4a and a helical spiral (not shown) are accommodated, and the helical blades transport the kernel.

Behind the first gutter 24, a second gutter 28 is provided substantially parallel to the first gutter 24, and is not leaked by the swing sheave 19 and the crimp net 22. The sorted kernels are lifted and transferred from the discharge port 30a onto the oscillating sorter 40 by the second gutter 28 and the second reduction cylinder 30 connected to the end side in the transfer direction. The second gutter 28 and the second reduction cylinder 30 house a second helix 28a and a second reduction helix (not shown) having helical blades that are driven to rotate. Grains are transferred.

In the present invention, the second reduction cylinder 30 is provided upright behind the handling chamber 36, and an opening is provided on the second reduction cylinder 30 side of the rear panel of the handling chamber. The unsorted grains can be thrown and discharged from the discharge port 30a of the swinging sorting body 40 toward the starting end side.

That is, as shown in FIGS. 1 to 3, the second reduction cylinder 30 is erected near the side of the fuselage behind the handling room 36, and partitions the rear part of the handling room 36. As shown in FIG. 2, a trapezoidal opening 60 a is formed in a lower portion of the rear side plate 60 and a side close to the second reduction cylinder 30. The opening 60a forms a kernel discharge path, whereby unsorted kernels are moved from the discharge port 30a of the second reduction cylinder 30 to the starting end of the swing sorter 40 as shown by an arrow A in FIG. Towards the side, the release path is released without being blocked. In this manner, unsorted grains are released to the starting end side of the rocking sorter 40 and are more likely to be subjected to rocking operation, thereby improving sorting performance. Arrow A
The unsorted kernels are discharged to the starting end side of the rocking sorter 40 in a state where the second reduction cylinder 30 is set up substantially vertically without being inclinedly arranged by the kernel discharge path formed as described above. It is possible to do.

In this embodiment, the discharge port 30a is formed at the upper end of the second reduction cylinder 30.
In addition, the discharge port 30a is opened so as to reach a position near the lower side of the handling chamber 36. As described above, since the discharge port 30a is provided outside the handling chamber 36, the fried grain cylinder 26 for lifting and transferring the grains intersects with the second reduction cylinder 30 for reducing and transferring unselected grains. It is not necessary to make the width of the fuselage as narrow as possible, so that it is possible to design the fuselage as compact as possible.

Next, the operation will be briefly described.

The grain that has leaked from the crimping net 22 of the swing sorter 40 falls to the first gutter 24 below the same, and the first gutter 2
By the first spiral 24a housed in 4, it is lifted and transferred to a grain tank or a hopper 45 by a raising cylinder 26 erected at the end side (one side of the machine right and left) in the transfer direction. Further, unsorted kernels fall on the second gutter 28, which is provided behind the first gutter 24 and substantially in parallel with the first gutter 24, and
The second spiral 28a provided inside the gutter 28 is lifted and returned to the oscillating sorter 40 by the second reduction cylinder 30 erected on the end side (one side of the airframe left and right) of the transfer direction and is re-sorted. You. The second reduction cylinder 30 is provided upright behind the handling chamber 36, and a discharge port 30 a at the upper end thereof is provided through the handling chamber rear side plate 6.
Unsorted kernels are discharged toward the starting end of the swing sorting body 40 through the opening 60a formed at zero. As a result, unsorted kernels are more susceptible to rocking motion, and the sorting performance is improved. The discharge port 30a of the second reduction cylinder 30 is opened at a position near the lower side of the handling chamber 36 and is provided outside the handling chamber 36.
The sixth and second reduction cylinders 30 do not intersect, so that the body width can be made narrow and compact.

[0022]

As described above, according to the first aspect of the present invention, the second reduction cylinder is erected behind the handling room,
An opening is provided on the No. 2 reduction cylinder side of the handling room rear side plate, and this opening allows the unsorted grains to be thrown and released from the discharge port of the No. 2 reduction cylinder toward the starting end side of the swinging sorting body. As a result, the unsorted kernels are released to the starting end side of the swinging sorting body, so that the grains are more likely to be used for the swinging operation and the sorting performance can be improved.

According to the second aspect of the present invention, the discharge port of the second reduction cylinder is formed at the upper end of the second reduction cylinder, and the discharge port is opened near the lower side of the handling chamber. Since the discharge port is provided outside the handling room, there is no need to intersect the first cylinder (frying cylinder) for lifting and transferring the grains with the second reduction cylinder, and thus the lateral width of the machine is as narrow as possible. It can be designed to be compact.

[Brief description of the drawings]

FIG. 1 is a cross-sectional plan view of a threshing machine to which the present invention is applied.

FIG. 2 is a sectional rear view of the above.

FIG. 3 is a cross-sectional side view of the threshing machine.

FIG. 4 is a side view of the threshing machine.

[Explanation of symbols]

 C Threshing machine 10 Handling cylinder 13 Rotating shaft 24 No. 1 gutter 24a No. 1 spiral 26 Lifting cylinder 28 No. 2 gutter 28a No. 2 spiral 30 No. 2 reduction cylinder 30a Discharge port 36 Handling chamber 38 Dust sorting chamber 40 Swing sorting body 45 Hopper 47 Separation air channel 60 Rear panel of handling room 60a Opening

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Hiroyuki Fukuyori 667 Iyacho, Izamachi, Higashi-Izumo-cho, Yatsuka-gun, Shimane 1 F term in Mitsubishi Agricultural Machinery Co., Ltd. (Reference) 2B094 AA07 AA08 AA11 AB02 AB06 AB12 AF01 AH02 AH06 AJ03 BA01 EA05 HA01 JA10 JB09 JC01 JD15

Claims (2)

[Claims] An oscillating sorter is installed in a sorting air passage formed from a lower part of a handling room to a dust sorting chamber behind a fuselage, and a first gutter and a second gutter behind the oscillating sorter below the oscillating sorter. A threshing machine in which a gutter is provided, and unsorted grains are lifted and transferred onto the oscillating sorter via the second gutter and a second reduction cylinder connected to the terminal side thereof, thereby enabling re-sorting. The second reduction cylinder is erected behind the handling chamber, and an opening is provided in the rear side plate of the handling chamber on the second reduction cylinder side, and the opening swings from the discharge port of the second reduction cylinder. A second reduction device in a threshing machine, characterized in that unsorted grains can be thrown and discharged toward the starting end of the sorting body. 2. The threshing machine according to claim 1, wherein the discharge port is formed at an upper end of a second reduction cylinder, and the discharge port is opened at a position near a lower side of the handling chamber. 2nd reduction device.