JPH08317722A - Thresher in combine harvester - Google Patents

Abstract

PURPOSE: To obtain a thresher in a combine harvester having improved workability and uniformly discharging dust onto the field face by disposing a guide introducing dust between rear part of a shaking shelf and a diffuser. CONSTITUTION: A shaking shelf 9 receiving and electing fallen threshed materials is disposed below a threshing chamber 2, a treating chamber 8 and a dust treating chamber 7, a fan mill 10 is disposed below the shaking shelf 9 and a beginning end side in feeding direction of a selecting wind, and a first spiral 11 is fitted at a downstream side in the selecting wind-feeding direction and a second spiral 12 is fitted at a downstream side in the selecting wind-feeding direction of the first spiral 11. Furthermore, a diffuser 18 diffusing dust discharged from a thresher 1 is attached to the rear of the shaking shelf 9 and a guide 19 introducing the dust is disposed between a rear part of the shelf 9 and the diffuser 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine threshing device.

[0002]

2. Description of the Related Art A conventional combine threshing device is, as shown in Japanese Utility Model Publication No. 1-121345, provided with a diffusing device at the rear of an oscillating sorting shelf to remove dust from a cross-flow fan. The discharge guide plate is installed at the rear end of the swing selection shelf and extends to the upper position on the rear side of the diffusing device.

[0003]

The threshing device for combine harvesters described above is provided with a processing cylinder other than the handling cylinder and a dust removal processing cylinder, but no technique for guiding the dust to the diffusion device is disclosed. There was a drawback. The present invention is intended to solve such a problem.

[0004]

The combine threshing device according to the present invention solves the above problems and has the following structure. That is, in the combine threshing device having the above-mentioned configuration, the threshing device 1 is provided behind the swinging shelf 9.
A combiner 18 for diffusing the dust discharged from the diffuser 18 is provided, and a guide 19 for guiding the dust is provided between the rear part of the swing shelf 9 and the diffuser 18. It was used as a threshing device.

[0005]

With the combine threshing device having the above structure, the threshing grains taken into the dust treatment chamber 7 from the vicinity of the end of the handling chamber 2 are further threshed in the dust treatment chamber 7, and Although the grain removal of the part falls on the lower swing shelf 9, the dust that has not fallen is transported to the end of the dust processing chamber 7 and discharged to the outside of the machine. When this dust is discharged to the outside of the machine, it is guided to the diffuser 18 by the guide body 19 and diffused, so that the dust is uniformly dispersed in the field scene.

Further, the dust discharged from the end of the second shelf tip 17 which constitutes the end of the swing shelf 9 to the outside of the machine is also guided to the diffuser 18 by the guide 19 and is exposed to the field scene. Disperse evenly.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a combine equipped with an embodiment of the present invention. A harvesting device 22 and a supply / transport device 23 are provided in front of a chassis 21 having the traveling device 20. The cutting device 22 includes a weeding tool 24 for weeding the planted culms, a raising case 25 for causing the planted culms, a cutting blade 26 for cutting the planted culms, and a cutting blade 26 for cutting the planted culms. It is composed of a stock-source transporting device 27 that sandwiches the harvested grain culm and transports it backward. Behind this stock carrier 27
A supply / conveyance device 23 is provided for taking over and conveying the grain culm conveyed from the stock origin conveying device 27.

Since the reaping device 22 is supported by a reaping device supporting frame 29 which moves up and down about a fulcrum above the traveling transmission device 28, at a substantially middle portion thereof,
The mowing device 22 is configured to move up and down together with the mowing device supporting frame 29. Above the chassis 21, there is a threshing device 1 having a feed chain 13 for succeedingly transporting the grain culm transported from the supply and transport device 23, and the threshing device 1
Glen tank 30 that temporarily stores the grains that have been threshed and sorted in
Is placed. Behind the threshing device 1, a culm chain 15 that carries the culm carried from the feed chain 13 and conveys it, a cutter 16 below the culm chain 15 that cuts the culm, and a swing shelf. A diffuser 18 that diffuses the dust discharged from the threshing device 1 is provided behind the device 9. There is also a combine other than the cutter 16, which is equipped with another working machine such as a knotter for binding the culms.

2 and 3 are a side view and a plan view of the threshing device 1, respectively. In the threshing device 1, a handling chamber 2 in which a handling barrel 3 is mounted by a handling barrel shaft 4, and a processing barrel 5 for processing threshing on one side of the handling chamber 2 is mounted by a processing barrel shaft 5a. A processing chamber 8 is provided, and further behind the processing chamber 8,
Further, a dust processing chamber 7 in which the dust processing cylinder 6 is mounted is provided on the same axis as the processing cylinder shaft 5a. Below the handling cylinder 3, the processing cylinder 5, and the dust processing cylinder 6, a handling cylinder receiving net 31, a processing cylinder receiving net 32, and a dust processing cylinder receiving net 33 are installed, respectively.

Below the handling chamber 2, the processing chamber 8 and the dust processing chamber 7, there is an oscillating rack 9 for receiving falling grain and sorting.
Is installed. Below the rocking rack 9, a Karato 10 is provided on the starting end side in the sorting air feeding direction, and the most spiral 11 is provided on the lower side in the feeding direction of the sorting air blown from the Karato 10. ,
A second spiral 12 is provided on the lower side of the first spiral 11 in the sorting wind feeding direction.

The structure of the swing shelf 9 will be described. The rocking rack 9 is a transfer rack 9a for transferring the dropped grain to the rear, a chaff sheave 9b for sorting the grain, and a straw rack for transferring the dust to the outside of the machine in order from the starting end side in the sorting and feeding direction. 9c. The Straw Rack 9c
The lower part of the second shelves 17 is configured by a second shelf 17 for guiding the second object into the second helix 12, and the dust removal processing cylinder 6 extends to the vicinity of the end of the second shelf 17.

The cross-flow fan 34 is for discharging the light dust in the sorting chamber 35 to the outside of the machine, and the straw rack 9c.
It is configured above. In the threshing device 1 as described above, from the rear part of the swing shelf 9 (in this embodiment, the second shelf tip 17 is formed, the end part of the straw rack 9c may project) to the diffuser 18. A guide body 19 is installed between them. (The guide body 19 is fixed to the swing shelf 9 side.) Further, as shown in FIG. 3, since the guide body 19 is substantially the same as the lateral width of the swing shelf 9, the guide body 19 is provided. Does not overlap a part of the right side portion (with respect to the traveling direction of the combine) of the dust processing cylinder 6.
However, as shown in FIG. 4, the rotation direction of the dust removal processing body 6 is clockwise in a front view (viewed from the front of the combine), and the dust removal processing teeth 6a are installed so as to send grain removal backward. Therefore, at the outlet of the dust processing chamber 7, a part of the dust is blown to the right,
There is no problem even without the guide 19.

As shown in FIG. 3, the diffuser 18 has substantially the same length as the cutter 16 in the lateral width direction. This is because culms falling from the cutter 16 are also diffused by the diffuser 18. In addition, the diffuser 18
Has a helical shape and is configured to bounce dust off to the right of the combine. This is because uncut culms exist on the left side of the combine, so that dust is not applied to the uncut culms.

In the combine equipped with the threshing device 1 configured as described above, the power from the engine (not shown) is input to the traveling transmission device 28, and the traveling device 20 is driven at a desired speed. . Then, the combine begins to move forward. In order to perform the mowing and threshing work, power is transmitted from the engine to the mowing device 22, the feeding and conveying device 23, and the threshing device 1 to perform the work. When the combine moves forward in such a state, the planting culm will be
It is divided by 4 and raised in the case 25. After that, the grain culms are cut by the cutting blade 26, and the cut grain culms are supplied to the rear side of the stock feeding device 2 by the stock feeding device 27.
3 is conveyed toward the starting end.

The grain culm transported to the terminal end of the stock-source transporting device 27 is taken over by the starting end of the rearward-feeding transporting device 23. After that, the grain culm transported to the terminal end of the supply transport device 23 is carried over to the start end of the feed chain 13 of the threshing device 1, and the grain culm carried over to the feed chain 13 is transported to the rear, Handle barrel 3 and handle barrel 3
1 threshed. A part of the threshed grains that have been threshed falls on the rocking rack 9, and is sorted by the rocking action of the rocking rack 9 and the wind-selecting action from the Karato 10, and is taken into the first helix 11 most. Go. The grains taken into the first helix are temporarily stored in the Glen tank 30, and the culms after threshing are carried from the terminal end of the feed chain 13 to the beginning of the culm chain 15 and conveyed. After that, it is sent to the cutter 16 and cut, diffused by the diffuser 18 below, and uniformly discharged to the field scene.

The remaining grain-removing grains in the handling chamber 2 are conveyed rearward, and part of the grain-removing grains are taken into the processing chamber 8 during the process. The threshing grains taken into the treatment chamber 8 are threshed by the action of the treatment drum 5 and the treatment drum receiving net 32 while being conveyed to the upper side in the sorting wind feeding direction, and fall on the lower swing shelf 9. To go. Since the handling cylinder 3, the processing cylinder 5, and the dust removal processing cylinder 6 are configured to rotate clockwise in the front views of FIGS. 4 and 5 (when the sorting wind is viewed from the upper side to the lower side), therefore The processing teeth 5 of the body 5 need to be fixed in such a direction that the grain-removing grains are fed in the upper hand side of the sorting wind feeding direction. In addition, the dust removal processing teeth 6 of the dust removal processing cylinder 6
It is necessary for a to be fixed in such a direction that the grain-removed grain is fed to the lower side of the sorting wind feeding direction. FIG. 4 is a S1-S1 cross section of the threshing device 1, and FIG. 5 is a S2-S2 of the threshing device 1.
The cross section is shown.

As described above, the remaining grains that have not fallen onto the rocking rack 9 due to grain removal in the handling chamber 2 and have not been taken into the processing chamber 8 reach the end of the handling chamber 2. Be transported. The grain removal carried to the end portion of the handling chamber 2 is taken into the dust treatment chamber 7, and the taken grain removal is carried to the dust treatment cylinder 6 while being conveyed to the lower side in the sorting air feeding direction. By the interaction of the dust treatment cylinder net 33, further threshing is performed, and the threshing is loosened and the mixed grains (so-called clam grains) are taken out and placed on the lower swing shelf 9. Falling down.

Despite the swinging action of the swinging shelves 9 and the action of the sorting wind from the agarwood 10, the remaining grains that were not taken into the most spiral 11 were moved further backward together with other dusts. It is sent and taken into the second spiral 12. The second food taken into the second spiral 12 is returned to the lower side in the sorting air feeding direction of the processing chamber 8 in the second frying cylinder 36, and merges with the grain removed from the handling chamber 2, After that, while being conveyed to the upper side in the sorting wind feeding direction, the threshing process is performed by the interaction with the processing cylinder receiving net 32, and the particles are dropped onto the swing rack 9 below.

In the combine equipped with the threshing device 1 for performing such a series of operations, as described above, the guide body 19 as described above is installed between the end of the swing shelf 9 and the diffuser 18. It is configured to do. Conventionally, the guide body 1
Since there was no 9, the dust discharged from the end of the swing shelf 9 was not uniformly discharged to the field scene. In addition, the dust discharged from the dust processing chamber 7 was not uniformly discharged to the field scene.

In the present invention, the guide body 1 as described above is used.
9 is installed, the dust discharged from the rocking shelf 9 and the dust processing chamber 7 is reliably guided by the diffuser 18 by the guide 19.
Guided by, the dust is uniformly discharged in the field. Next, FIG. 6A will be described. The threshing device 1 described above
In the above, the guide body 19 is provided between the end of the swing shelf 9 and the diffuser 18, but in the present embodiment, between the end of the dust treatment chamber 7 and the diffuser 18. The guide 37 is installed. As shown in FIG. 6 (b), the guide body 37 is installed at the end of the dust treatment cylinder receiving net 33.

As a result, the dust discharged from the dust treatment chamber 7 is reliably guided to the diffuser 18, so that the dust falls uniformly on the field. At this time, since the dust discharged from the end of the swing shelf 9 has a relatively long culm and the amount thereof is not large, there is no problem even if it is not diffused by the diffuser 18. Next, FIG. 7 will be described.

When the above-mentioned diffuser 18 is provided, the diffuser 18 and the dust processing cylinder 6 are overlapped in the section A. As a result, the guide body 37 provided between the end of the dust treatment chamber 7 and the diffuser 18 as described with reference to FIG. 6 is unnecessary, and the dust discharged from the dust treatment chamber 7 is surely discharged. It can be affected by the diffuser 18. Also, most of the dust discharged from the end of the swing shelf 9 can be affected by the diffuser 18.

Next, FIG. 8 will be described. In the section B in the front part of the processing cylinder 5, the grain removal is conveyed to the lower side in the sorting wind feeding direction, and in the section C in the rear part of the processing cylinder 5, the grain removal is conveyed to the upper side in the sorting wind feeding direction. And Further, in the section D, the processing drum support net 32 is not installed, and the grain removal is directly dropped on the swing shelf 9.
The grain culm is threshed by the interaction between the handling barrel 3 and the handling barrel receiving net 31 while being conveyed while being sandwiched by the feed chain 13, but a large amount of grain loss occurs near the start end of the handling chamber 2. Therefore, I do not want to mix this so-called grain removal, which has not been sorted yet, and the second crop, which has been sorted to some extent, together with this so-called grain removal. Therefore,
The threshing taken into the processing chamber 8 from the vicinity of the start end of the handling room 2 is exclusively performed in the section B, and the second product conveyed from the second fried cylinder 36 is threshed in the section C. Try to do it.

As described above, the grain removal carried in the section B to the lower side in the sorting wind feeding direction and the grain removal carried in the section C to the upper side in the sorting wind feeding direction are both received by the processing cylinder receiving section D. It falls from the portion without the net 32 onto the rocking rack 9. Of course, the second one merges with some of the grain removed from the handling room 2, but there is no problem. As a result, the second crop can be efficiently threshed and sorted, and the threshing can be prevented from being extremely accumulated on a part of the swing shelf 9.

[0025]

Since the present invention is configured as described above, the dust discharged from the terminal end of the dust processing chamber 7 of the threshing device 1 and the terminal end of the rocking rack 9 is surely transferred to the diffuser 18. Be guided,
Dust is uniformly discharged in the field.

[Brief description of drawings]

FIG. 1 Side view of combine

FIG. 2 is a side view of the threshing device.

FIG. 3 is a plan view of a threshing device.

FIG. 4 is a front view of a cross section S2-S2 of the threshing device.

FIG. 5 is a front view of a cross section S1-S1 of the threshing device.

FIG. 6 (a) Side view of threshing device (b) Plan view of threshing device

FIG. 7: Side view of threshing device

FIG. 8: Side view of threshing device

[Explanation of symbols]

Section A Section B Section C Section D Section 1 Threshing equipment 2 Handling room 3 Handling barrel 4 Handling barrel axis 5 Processing barrel 5a Processing barrel axis 5b Processing teeth 6 Dust removal processing cylinder 6a Dust removal processing teeth 7 Dust removal processing room 8 Processing room 9 Swinging shelves 9a Transfer shelves 9b Chaf sheaves 9c Straw racks 10 Kara ware 11 First helix 12 Second helix 13 Feed chains 15 Discharge chains 16 Cutters 17 Second shelves 18 Diffusers 19 Guides 20 Traveling equipment 21 Chassis 22 Cutting machines 23 Supply transport device 24 Weeding tool 25 Raising case 26 Cutting blade 27 Stock transport device 28 Travel transmission device 29 Mowing device support frame 30 Glen tank 31 Handling drum net 32 Processing drum net 33 Dust treatment drum net 34 Crossing Flow fan 35 Sorting room 36 Second fried cylinder 37 Guide

Claims (1)

[Claims] 1. A threshing unit 3 for threshing a grain culm sent by a feed chain 13 is mounted in the handling chamber 2 provided in the threshing device 1, and one side of the handling chamber 2 is provided with a handling barrel 3. A processing chamber 8 in which a processing drum 5 for processing grain removal is mounted is provided. Behind the processing chamber 8, the processing drum 8 is rotated coaxially with the processing drum 5 and fed from the rear portion of the processing chamber 2. A dust processing chamber in which a dust processing cylinder 6 is installed, which processes the discharged dust and extends to the vicinity of the end of the second shelf 17 whose rear end is arranged downward. 7 is provided, and a swinging shelf 9 for sorting by receiving falling grain is provided below the handling chamber 2, the processing chamber 8 and the dust processing chamber 7, and sorting is performed at a position below the swinging shelf 9. Kara Minoh 10 is provided on the starting end side in the wind feeding direction, the most spiral 11 is on the lower side in the sorting wind feeding direction, and the lower side in the sorting wind feeding direction of the most spiral 11. In the threshing device 1 provided with the second spiral 12 respectively, the threshing device 1 is provided behind the swinging shelf 9.
A combiner 18 for diffusing the dust discharged from the diffuser 18 is provided, and a guide 19 for guiding the dust is provided between the rear part of the swing shelf 9 and the diffuser 18. Threshing equipment.