JP2002000050A - Threshing device of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems that a large amount of straw wastes and untreated materials are readily produced together with a large amount of grains when grain culms in a large amount fed with a feed chain are subjected to threshing treatment in a threshing chamber with a threshing cylinder and waste dust materials discharged from the rear of a threshing device and formed into a heap in a field are difficult to widely scatter and discharge in the field because the waste dust materials are discharged from a treating chamber toward the waste dust materials discharged from a separation rack due to the opposite rotational direction of the threshing cylinder to that of a treating cylinder by the above means. SOLUTION: This threshing device of a combine harvester is obtained by installing the separation rack 9 for receiving and separating dropped treated materials and feeding the received treated materials toward the rear in the lower part of a waste treating chamber 7, the threshing chamber 2 and the treating chamber 8 and further providing a fan 34 for discharging the treated materials which do not drop to the upper part of the terminal end of the separation rack 9 to the outside of the machine body and cutters 16 for cutting waste culms above the rear of the threshing device 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art A conventional threshing apparatus is disclosed in Japanese Patent Publication No. 1-2309.
As disclosed in Japanese Patent Application Publication No. 1 (1994), there is provided a processing chamber in which a processing cylinder is mounted on the rear side of a rear side of a handling chamber in which a processing cylinder for threshing grain culm is mounted, so that dust is discharged. It is configured to be discharged outside the machine from the rear end of the room.

[0003]

However, when the grain stalk sent in large quantities by the feed chain is subjected to threshing in the handling room by the handling cylinder, straw chips and untreated materials are generated along with a large amount of grains. Cheap. Further, in the above-described means, since the rotation directions of the handling cylinder and the processing cylinder are opposite to each other, the dust is discharged from the processing chamber toward the dust discharged from the sorting shelf. Therefore, it is difficult to widely disperse and discharge the dust discharged from the rear of the threshing device to the field.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and has taken the following technical means. That is, a handling room 2 is provided in which a handling drum 3 for threshing grain culms sent by the feed chain 13 is mounted.
On one side of the handling chamber 2 on the opposite side of the feed chain 13, a processing chamber 8 for processing a threshed material is provided around a processing drum shaft 5 a and communicates with a second lifting cylinder 36. A net is provided between the handling cylinder 3 and the processing cylinder 8 so that a part of the thresh generated in the handling chamber enters the processing chamber. A dust processing chamber 7 having a plurality of dust processing cylinders 6 mounted with a large number of dust processing teeth 6a mounted rearward from the rear side is provided, and dust is removed from the rear end of the dust processing chamber 7 from the rear end. It is configured to be discharged to the outside, and a sorting shelf 9 is provided below the dust processing chamber 7, the handling chamber 2, and the processing chamber 8 to receive and sort the dropped workpiece and send it backward.
A threshing device for a combine, comprising a fan 34 for discharging the processed material that has not fallen above the terminal end of the sorting shelf to the outside of the machine and a cutter 16 for cutting the culm at the upper rear of the threshing device 1. did.

[0005]

The spike tip side of the cereal stem sent by the feed chain 13 is threshed by the rotating drum 3 in the handling room, and then cut by the cutter 16. The processed material dropped from the handling room 2 is subjected to a sorting action by the sorting shelf 9, and a second product generated by the sorting action is a second fried grain 3
The waste is returned to the processing chamber 8 by the processing chamber 6 and is processed by the processing drum 5. The processed material dropped from the processing chamber 8 is also subjected to the sorting operation by the sorting shelf 9. Part of the thresh produced between the handling cylinder 3 and the processing cylinder 8 in the handling room enters the processing chamber via a net and is processed.

The processed material which does not fall from the handling chamber 2 is located in the dust treatment chamber 7 behind the processing chamber 8 from the end of the handling chamber 2 and on the opposite side of the feed chain 13 from the rear side of the handling cylinder 3. It is sent to the start end, and is subjected to processing in the dust processing chamber by a number of dust processing teeth 6a attached to the rotating processing drum 6.

[0007] The processed material that has fallen from the dust processing chamber 8 is subjected to a sorting operation by the sorting shelf 9, and the processed material that has not leaked to the upper end of the sorting shelf 9 is sent to the outside by the fan 34. The processed material that has been discharged and does not fall from the dust processing chamber 7 is discharged from the end of the dust processing chamber 7 to the outside of the apparatus. Dust discharged from the end of the moving shelf 9 can be discharged rationally, and the discharged dust can be uniformly discharged to the field scene.

[0008]

The dust discharged from the end of the dust treatment chamber 7 of the threshing apparatus 1 and the end of the swinging shelf 9 can be uniformly discharged to the field scene. In addition, a part of the thresh produced between the handling cylinder 3 and the processing cylinder 8 in the handling room enters the processing chamber via a net and is processed.

[0009]

FIG. 1 shows a combine having an embodiment of the present invention. In front of a chassis 21 having a traveling device 20, a mowing device 22 and a supply and transport device 23 are provided.
Is provided. The cutting device 22 includes a weeding tool 24 for weeding the planted grain culm, a raising case 25 for causing the planted grain culm, a cutting blade 26 for cutting the planted grain culm, and a cutting blade 26 for cutting the planted grain culm. It comprises a stock-source transporting device 27 for nipping and transporting the harvested grain stem backward. Behind the stock transfer device 27, a supply transfer device 23 that takes over and transports the grain stems transferred from the stock transfer device 27 is provided.

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 substantially a middle portion between left and right.
The reaper 22 is configured to move up and down together with the reaper support frame 29. A threshing device 1 having a feed chain 13 above and over a chassis 21 for taking over and transporting the grain stalks conveyed from the supply / conveyance device 23;
Tank 30 for temporarily storing the grains selected by threshing
Is placed. Behind the threshing device 1, a culm chain 15 that takes over and conveys the culm conveyed from the feed chain 13, a cutter 16 below the culm chain 15 for cutting the culm, and a swinging shelf A diffuser 18 that diffuses the dust discharged from the threshing device 1 is provided behind the 9. There is also a combine equipped with another working machine other than the cutter 16, for example, a knotter for binding the culm.

FIGS. 2 and 3 show a side view and a plan view of the threshing apparatus 1, respectively. In the threshing apparatus 1, a handling chamber 2 in which a handling cylinder 3 is supported by a handling barrel shaft 4, and a processing cylinder 5 for processing threshing material is supported on one side of the handling chamber 2 by a processing barrel shaft 5a. A processing chamber 8 is provided, and further behind the processing chamber 8,
In addition, a dust processing chamber 7 is provided around 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 network 32, and a dust processing cylinder receiving network 33 are provided, respectively.

A swing shelf 9 for receiving and sorting the falling threshing material is provided below the handling room 2, the processing room 8, and the dust processing room 7.
Is provided below the rocking shelf 9 at the start end side of the sorting wind feeding direction, and the first spiral 11 is provided at the lower side in the feeding direction of the sorting wind blown from the Karamino 10. ,
A second spiral 12 is provided on the lower side of the first spiral 11 in the sorting air feeding direction.

The structure of the swing shelf 9 will be described. The swinging shelf 9 includes, in order from the starting end side in the sorting and feeding direction, a transfer shelf 9a for transferring dropped threshing material backward, a chaff sheave 9b for selecting threshing material, and a straw rack for transferring and discharging dust to the outside of the machine. 9c. The straw rack 9c
A second shelf 17 for guiding a second product into the second spiral 12 is formed below the second shelf 17. The dust-exhaust processing cylinder 6 extends to near the end of the second shelf 17.

The cross flow fan 34 is for discharging the light dust in the sorting chamber 35 out of the machine, and is provided with a straw rack 9c.
Is configured above. In such a threshing device 1, the diffuser 18 extends from the rear part of the swinging shelf 9 (in this embodiment, the second shelf tip 17 is used, but the end of the straw rack 9c may protrude). The guide body 19 is provided between them. (The guide body 19 is fixed to the swing shelf 9 side.) As shown in FIG. 3, the guide body 19 is substantially the same as the length of the swing shelf 9 in the lateral width direction. Does not overlap with a part of the right side portion (with respect to the traveling direction of the combine) of the dust treatment cylinder 6.
However, as shown in FIG. 4, the rotation direction of the dust treatment cylinder 6 is clockwise in a front view (viewed from the front of the combine), and the dust treatment teeth 6a are installed so as to send threshing material backward. Therefore, at the outlet of the dust treatment chamber 7, a part of the dust is blown to the right side.
There is no problem even if the guide body 19 is not provided.

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

In the combine equipped with the threshing device 1 configured as described above, power from an engine (not shown) is input to the traveling transmission 28, and the traveling device 20 is driven by shifting the speed to an arbitrary speed. . The combine then starts moving forward. In order to perform the mowing and threshing work, power is further transmitted from the engine to the mowing device 22, the supply and transport device 23, and the threshing device 1 to perform the work. When the combine moves forward in such a state, the planted cereal culm becomes the weeding implement 2
4 and is caused in the raising case 25. Thereafter, the stalks cut and cut by the cutting blade 26 are fed by the stock feeder 27 to the rear feeder 2.
3 is conveyed toward the start end.

The grain culm transported to the end of the stock transporter 27 is taken over by the starting end of the feed transporter 23 at the rear. Thereafter, the grain culm transported to the end of the supply and 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 by the feed chain 13 is transported rearward, Handle cylinder 3 and handle cylinder receiving net 3
Threshing by 1. A part of the threshed after falling falls on the rocking shelf 9 and is sorted by the rocking operation of the rocking shelf 9 and the wind selection action from the Karamin 10, and is taken into the first spiral 11. Go. The grains taken into the first spiral are temporarily stored in the Glen tank 30, and the culms after threshing are carried over from the end of the feed chain 13 to the beginning of the culms chain 15, and are conveyed. Then, it is sent to the cutter 16 and cut, and is diffused by the lower diffuser 18 and uniformly discharged to the field scene.

The remaining thresh in the handling room 2 is transported rearward, and some of the thresh is taken into the processing chamber 8 on the way. The thresh taken in the processing chamber 8 is threshed by the action of the processing cylinder 5 and the processing cylinder receiving net 32 while being conveyed to the upstream side in the sorting air feeding direction, and falls onto the swinging rack 9 below. To go. The handling cylinder 3, the processing cylinder 5, and the dust processing cylinder 6 are configured to rotate clockwise in the front view of FIG. 4 and FIG. 5 (when viewed from the sorting windward side to the downstream side). The direction of the processing teeth 5 of the body 5 needs to be fixed in such a way that the thresh is sent in the upstream direction in the sorting wind feeding direction. In addition, the dust processing teeth 6 of the dust processing cylinder 6
It is necessary that a is fixed in a direction such that the thresh is sent in the lower direction of the sorting wind feeding direction. FIG. 4 is a cross section taken along line S1-S1 of the threshing apparatus 1, and FIG.
It shows a cross section.

As described above, the thresh in the handling room 2, which does not fall on the swinging shelf 9 and is not taken into the processing chamber 8, remains until the end of the handling room 2. Conveyed. The thresh conveyed to the terminal end of the handling room 2 is taken into the dust treatment chamber 7, and the thresh taken in is conveyed to the lower side in the sorting air feeding direction, while the thresh is transferred to the dust treatment cylinder 6. With the interaction of the dust-removing body receiving net 33, the threshing is further released, and the threshing is loosened, and the grains (so-called sari grains) mixed therein are taken out and placed on the swinging rack 9 below. Fall down.

[0020] Despite the action of the swinging movement of the swinging shelf 9 and the action of the sorting wind from the Karamin 10, the remaining kernels that were not taken into the spiral 11 the most are moved further back together with other dust. It is sent and taken into the second spiral 12. The second product 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 fryer cylinder 36 and merges with the thresh from the handling chamber 2, Thereafter, while being conveyed to the upstream side in the sorting air feed direction, threshing is performed by the interaction with the processing drum receiving net 32, and the threshing is dropped onto the swinging shelf 9 below.

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

In the present invention, the guide 1 as described above is used.
9, the dust discharged from the swinging shelf 9 and the dust processing chamber 7 can be reliably diffused by the guide 19 to the diffuser 18.
And the dust is uniformly discharged to the field scene. Next, FIG. 6A will be described.

In the threshing apparatus 1 described above, the guide 19
Is provided between the end of the swinging shelf 9 and the diffuser 18. However, in this embodiment, the guide 37 is provided between the end of the dust treatment chamber 7 and the diffuser 18. Configuration. As shown in FIG. 6 (b), the guide body 37 is configured to be installed at the terminal end of the dust receiving cylinder receiving net 33.

As a result, the dust discharged from the dust processing chamber 7 is reliably guided to the diffuser 18, so that the dust falls uniformly on the field. At this time, the dust discharged from the end of the swinging shelf 9 has a relatively long culm and a relatively small amount, so that there is no problem even if the dust is not diffused by the diffuser 18.

Next, FIG. 7 will be described. In providing the above-mentioned diffuser 18, the diffuser 18 and the dust treatment cylinder 6
Are overlapped in the section A. This eliminates the need for the guide 37 provided between the end portion of the dust processing chamber 7 and the diffuser 18 as described in FIG. 6, and ensures that the dust discharged from the dust processing chamber 7 is discharged. The effect of the diffuser 18 can be received. Most of the dust discharged from the end of the swinging shelf 9 can also be affected by the diffuser 18.

Next, FIG. 8 will be described. In the section B at the front of the processing cylinder 5, the thresh is transported to the lower side in the sorting air feeding direction, and in the section C at the rear of the processing cylinder 5, the threshing is transported to the upper side in the sorting air feeding direction. And In the section D, the processing cylinder receiving net 32 is not provided, and the thresh is directly dropped on the swinging shelf 9.
The grain culm is threshed by the interaction between the handling cylinder 3 and the handling cylinder receiving net 31 while being transported while being sandwiched by the feed chain 13, and the amount of threshing generated is large in the vicinity of the starting end of the handling chamber 2. Therefore, we do not want to mix this large amount of so-called threshed, which has not yet been sorted, with the second, which has been sorted to some extent. Therefore,
Threshing taken into the processing chamber 8 from the vicinity of the starting end of the handling room 2 performs threshing exclusively in the section B, and threshing carried from the second fryer cylinder 36 threshing in the section C. To do.

As described above, the thresh transported in the section B to the lower side in the sorting wind feed direction and the thresh transported in the section C to the upper side in the sorting wind feed direction are both processed shells in the section D. It falls on the rocking shelf 9 from a portion where there is no net 32. Of course, the second product merges with some threshing material sent from the handling room 2, but there is no problem. As a result, the second product is efficiently threshing and sorted, and the threshing material can be prevented from excessively accumulating on a part of the swinging shelf 9.

[Brief description of the drawings]

FIG. 1 is a side view of a combine.

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

FIG. 3 is a plan view of the threshing apparatus.

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

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

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

FIG. 7 is a side view of the threshing apparatus.

FIG. 8 is a side view of the threshing apparatus.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Threshing device 2 Handling room 3 Handling cylinder 4 Handling cylinder axis 5 Processing cylinder 5a Processing cylinder axis 5b Processing teeth 6 Dust processing cylinder 6a Dust processing teeth 7 Dust processing chamber 8 Processing chamber 9 Swing shelf 13 Feed chain 16 Cutter 34 Cross-flow fan 35 Sorting room 36 No. 2 fried cylinder

Claims (1)

[Claims] 1. A handling chamber 2 having a handling cylinder 3 for threshing grain culms sent by a feed chain 13 is provided, and threshing material is provided on one side of the handling chamber 2 on the side opposite to the feed chain 13. A processing chamber 8 is provided in which a processing cylinder 5 to be processed is supported by a processing cylinder shaft 5a and communicates with a second-fryer cylinder 36. Threshing generated in the handling chamber is provided between the handling cylinder 3 and the processing cylinder 8. Is provided in the processing chamber, and a large number of dust processing teeth 6a are attached to the rear of the processing drum 3 at the rear of the processing chamber 8 and on the side opposite to the feed chain 13. Processing cylinder 6
The exhaust processing chamber 7 is provided with a shaft, and the dust is discharged from the rear end of the exhaust processing chamber 7 to the outside of the apparatus. A sorting shelf 9 which receives and sorts the processed material that has fallen down and sends it rearward is provided below, and a fan 34 for discharging the processed material that has not fallen above the end of the sorting shelf to the outside of the machine and a threshing machine. A combine threshing device provided with a cutter 16 for cutting the culm at the rear upper portion of the device 1.