JPH0584018A - Threshing shaking grader - Google Patents

Abstract

PURPOSE:To enable to take a shaking and grading shelf outside the machine in an extremely simple operation by connecting the shaking and grading shelf and an eccentric shaft for shaking the shelf with a vertically dividable bearing device. CONSTITUTION:A threshing chamber 2 for threshing grain straws nipped with feed chains 1 and carried from the front side to the rear side is disposed. A shaking and grading shelf 5 for receiving, shaking, transferring and grading threshed materials fallen from a threshing net 3 and a dust-discharging port 4 is disposed below the threshing chamber. A pair of right and left supporting rollers 7 rotated on a guide 6 is disposed at the front of the shaking and grading shelf 5, and an eccentric shaft 9 pivotally mounted on the thresher frame 8 is detachably attached to the rear part of the shaking and gracing shelf 5. The shaking and grading shelf 5 can detachably be taken out from the rear part of the thresher frame 8 by detaching the bearing device 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing rocking / sorting device, which is used in a threshing device such as a combine harvester or a harvester.

[0002]

2. Description of the Related Art A conventional device of this type is disclosed in
As described in Japanese Unexamined Patent Publication No. 8-41146, there is a known technique for removing the rocking sorting shelf from the threshing machine.
However, this structure requires time and effort for removal, and cannot be put to practical use.

[0003]

Therefore, it has been conventionally desired that the rocking sorting shelf can be removed from the thresher by a simple operation. With the conventional configuration, it is necessary to attach / detach to / from the eccentric rocking source as well as to / from the hanging rocking link, and the operation is too complicated to remove the rocking rack easily. It couldn't be done.

[0004]

The present invention takes the following technical means in order to solve the above-mentioned problems. That is, a handling chamber 2 is provided for threshing while transferring the grain culms held by the feed chain 1 from the front side to the rear side, and below the handling chamber 2 is a grain removing chamber 3 and a grain removing device 4 for dropping grain. An oscillating sorting shelf 5 for receiving and swinging to sort is provided, and a pair of left and right support rolls 7 rolling on a guide guide 6 are provided at the front portion of the oscillating sorting shelf 5, and the oscillating sorting shelf 5 is provided. An eccentric shaft 9 mounted on the threshing machine body 8 is detachably attached to a rear part of the dynamic sorting shelf 5 by a bearing device 10 that can be divided, and the swinging sorting shelf 5 is attached to the rear part of the threshing machine body 8 by removing the bearing device 10. It is a threshing rocking sorting device configured so that it can be freely detached from the machine.

[0005]

EXAMPLE The handling chamber 2 is provided with a grain culm supply port 11a on one side and a grain culvert discharge port 11b on the other side, and a handling cylinder 1 having handling teeth 12.
3 is mounted on the shaft. A feed chain 1 is provided so that grain culms can be transported along the side of the handling room 2. The handling chamber 2 is provided with a circular arc-shaped handling net 3 at the bottom and a dust outlet 4 at the rear. Reference numeral 14 denotes a straw chain, which is configured to convey the straw after threshing and discharge it from the rear portion to the outside of the machine.

The rocking sorting shelf 5 includes a transfer shelf 15 and a sorting shelf 1.
6, straw rack 17, grain guide shelf 18, sorting net 19
And the like are provided between the pair of left and right swing cases 20, 20. Then, the swing selection shelf 5 is provided with a roll provided at the front part.
A support roller 7 is rotatably provided on a la shaft 21 and an eccentric shaft 9 rotatably supported by a threshing machine body 8 can be attached to and detached from the rear part.

That is, the rocking selection shelf 5 is composed of an upper bearing piece 10a and a lower bearing piece 10b which can divide the bearing device 10 into upper and lower parts, and the eccentric shaft 9 can be attached by sandwiching it from above and below. .. Then, the rocking sorting shelf 5 described above transfers the grains leaked from the handling net 3 by the transfer shelf 15,
The sorting shelves 16 are configured to sort the grains that have been sent and the grains that have mixed with the straw dust that has fallen from the dust discharge port 4. Further, the straw rack 17 is configured to be able to discharge the straw waste out of the machine while removing the grains along with the swing.

[0008] The Karato 22 is provided below the front part of the rocking sorting rack 5, and the sorting wind is fed from the sorting net 19 of the swinging sorting rack 5 to the sorting rack 1.
6. The structure is such that air can be blown within the range of the straw rack 17. Then, below the swing selection shelf 5, the first transfer spiral 23 and the second transfer spiral 24 are arranged from the side closer to the Karako 22.
Are equipped in this order.

The guide guide 6 also serves as the upper casing 25 which constitutes the Karako 22 so that the support roll 7 can move while rolling on its upper surface. The guide guide 6 may be formed separately from the upper casing 25. The guide groove 26 is provided in the left and right side plates of the threshing machine body 8 in a groove shape that is continuous with the end portion of the guide guide 6 and opens to the inside, and when the swing selection shelf 5 swings back and forth, a support roll. 7 can be guided.

Reference numeral 27 indicates a second reducing device. A dust collector 28 is composed of a cross flow fan. Next, the operation will be described. The grain culm supplied to the handling chamber 2 by the feed chain 1 is threshed by the handling barrel 13 which is rotating while being transferred in the handling chamber 2, and the dehusked grains and the like leak from the handling net 3. A support roll 7, which is lowered and drops onto the transfer rack 15 and the selection rack 16 of the lower swing sorting device 5, and is loosely fitted in the rotation of the eccentric shaft 9 and the guide grooves 26, 26 to guide slide. The grain and a part of straw debris and the like are dropped from the sorting rack 16 onto the grain guiding rack 18 below by a swinging action of performing a forward and backward motion accompanied by a vertical motion.

Straws containing some grains that do not leak from the handling net 3 are transferred inside the handling chamber 2 and fall on the sorting rack 16 through the dust outlet 4, and then on the sorting rack 16. The grains and straw chips of the above are combined and transferred and sorted by the rocking action, and the sorted grains are sorted and dropped downward. Straws and the like that do not fall are transported in the direction of the tip on the sorting rack 16 and sent to the straw rack 17 to be sorted and discharged outside the machine.

Further, a sorting rack 16 and a straw rack 17
A dust remover 28 acts on this to suck light straw dust and dust and discharge it outside the device. The grain selected by the straw rack 16 is introduced into the second transfer spiral 24 as a second product. Then, the grains dropped on the grain guide rack 18 slide down toward the tip by the swinging action, are taken over on the sorting net 19 and are sorted by the action of the sorting wind, and the grains are the lowermost ones. It flows into the transfer spiral 23 and is carried out of the machine.

Grains that do not fall from the sorting net 19 flow into the second transfer spiral 24 from the tip of the sorting net 19,
It is returned to the handling chamber 2 by the second reducing device 27 together with the second substance flowing in from the straw rack 17, and is reprocessed. The threshed straw is carried out of the machine by the straw chain 14. During the threshing selection work, or after the completion of the work, the rocking selection shelf 5 is taken out and inspected, or when the inside of the threshing machine body 8 or the rocking selection shelf 5 is cleaned, the following operation is performed.

First, the upper bearing piece 10a and the lower bearing piece 10a
b) and the swinging selection shelf 5 is removed from the eccentric shaft 9. Then, the swing selection shelf 5 can be pulled out from the threshing machine body 8 to the outside of the machine body by pulling it backward from the rear opening. At this time, if the swinging selection shelf 5 is pulled out rearward while lifting the rear end portion, the support rolls 7 and 7 roll and the guide groove 2 moves.
It is possible to pull out backward from 6, 26, while rolling on the guide guide 6. In the case of reverse mounting, if a pair of left and right support rolls 7 and 7 are placed on the upper surface of the guide guide 6 and pushed forward, the support rolls 7 and 7 roll on the upper surface of the guide guide 6. While being guided to the front end side,
It can be accurately inserted into the guide grooves 26, 26.

[0015]

As described above, according to the present invention, since the rocking sorting shelf and the eccentric shaft for swinging the rocking sorting shelf are connected by the vertically divided bearing devices, the rocking sorting shelf is used as a machine. It has a feature that it can be taken out by an extremely simple operation.

In particular, in the present invention, the rocking sorting shelf does not need to be detached from the portion other than the connecting portion with the eccentric shaft, for example, the suspension link unlike the conventional type.

[Brief description of drawings]

FIG. 1 is a side sectional view of a threshing device according to an embodiment of the present invention.

FIG. 2 is a partial front sectional view showing the embodiment of the present invention.

FIG. 3 is a partial back cross-sectional view of the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Feed chain 2 ... Handling room 3 ... Handling net 4 ... Dust outlet 5 ... Oscillating sorting shelf 6 ... Guide guide 7 ... Support roll 8 ... Threshing machine 9 ... Eccentric shaft 10 ... Bearing device

Claims (1)

[Claims] 1. A handling chamber 2 is provided for threshing while transferring a grain culm held by a feed chain 1 from the front side to the rear side. Below the handling chamber 2, a handling net 3 and a dust outlet 4 are dropped. An oscillating sorting shelf 5 is provided for receiving and removing grains while swinging and transferring, and a pair of left and right support rolls 7 rolling on guide guides 6 are provided at the front part of the oscillating sorting shelf 5. The eccentric shaft 9 mounted on the threshing machine body 8 is detachably attached to the rear part of the rocking / sorting shelf 5 by a bearing device 10 which is separable.
A threshing rocking sorting device configured such that the rocking sorting shelf 5 can be detachably taken out from the rear part of the threshing machine body 8 by removing the