JP2003235331A - Thresher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily operate a dust-conveyance valve from an opening side when a threshing chamber and a separation chamber are opened by bringing the upper structure of a thresher to an uprising and opening position. <P>SOLUTION: An operation unit 43a of an operation lever 43 for regulating the dust-conveyance valve 16 is protruded to the separation chamber 12 between a back wall 33 of the threshing chamber of the upper structure 30 and an upper cover board 34 of the thresher. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure in which an upper structure forming a part of a handling chamber and a sorting chamber and supporting a handling barrel forms another part of the handling chamber and the sorting chamber. The present invention relates to a threshing device which is vertically swingably connected to an ascending open position and a descending close position and in which a dust sending valve is adjustably attached to the upper structure.

[0002]

2. Description of the Related Art Conventionally, the above threshing device has been provided with an operating lever for adjusting a dust-sending valve. As a device in which the dust-sending valve can be operated manually, the operation lever has an upper structure. It was mounted on the outside.

[0003]

In the threshing device described above, the handling chamber and the sorting chamber are opened by operating the upper structure to the raised open position, and the inside of the threshing device can be easily cleaned. When opening and cleaning the handling chamber and sorting chamber in this way, if you adjust the dust delivery valve and move the dust delivery valve, it may be attached to the dust delivery valve or between the dust delivery valve and the top of the handling chamber. Straws that have entered may easily come off. In this case, in the conventional threshing device, the operation lever for adjusting the dust transfer valve is attached to the outside of the upper structure,
It is necessary or necessary to move from the opening side to the opposite side to operate the dust delivery valve because it is difficult or difficult to operate from the opening side located for cleaning. The operator who operates the operation lever for adjusting the dust valve is required separately from the operator who performs cleaning on the opening side.

An object of the present invention is to provide a threshing device which can easily operate the dust sending valve on the opening side when the handling chamber or the sorting chamber is opened.

[0005]

The constitution, action and effect of the invention according to claim 1 are as follows.

[Structure] An upper structure which forms a part of the handling chamber and the sorting chamber and supports the handling barrel is opened upward with respect to a structure forming the handling chamber and the other part of the sorting chamber. In a threshing device which is vertically swingably connected to a position and a lower closed position, and a dust feeding valve is adjustably attached to the upper structure, an operation lever for adjusting the dust feeding valve is provided in the upper structure. It is arranged in a freely operable state inside the.

[Operation] Since the operation lever for adjusting the dust delivery valve can be operated inside the upper structure, when the upper structure is raised to the open position to open the handling chamber or the sorting chamber, the operation is performed from the opening side to the inside. By extending, the hand can easily reach the operation lever and the dust control valve can be operated.

[Effect] Therefore, when the handling chamber and the sorting chamber are opened, the dust-sending valve can be easily operated from the opening side, and it is convenient that the dust-sending valve can be moved even when the inside is cleaned by one person. Is.

The structure, operation and effect of the invention according to claim 2 are as follows.

[Structure] In the structure of the invention according to claim 1, the operation lever is arranged so as to project into the sorting chamber from between the rear wall of the handling chamber of the upper structure and the upper cover plate of the machine body.

[Operation] When the upper structure is moved to the raised open position, the inside of the sorting chamber is in an open state where it is easy to insert a hand. Since the operation lever protrudes into the sorting chamber, when opening the handling chamber and sorting chamber to operate the dust delivery valve,
A wide operation space is secured and the operation lever can be operated easily.

[Effect] Therefore, the operation lever can be easily operated from the aspect of the operation space, and the dust-sending valve can be easily and quickly operated to efficiently perform the cleaning work.

The structure, operation, and effect of the invention according to claim 3 are as follows.

[Structure] In the structure according to the first or second aspect of the invention, a display device for displaying the adjustment state of the dust delivery valve is provided outside the upper structure.

[Operation] When the upper structure is lowered to the closed position to close the handling chamber and the sorting chamber, the operation lever cannot be seen from the outside, and the adjustment state of the dust delivery valve is recognized by the operation position of the operation lever during work. I can not say that,
It can be recognized by the display device.

[Effect] Therefore, even if the operation lever can be easily operated from the opening side when the handling chamber is opened, the dust control valve can be adjusted even if the upper structure is not opened by interrupting the work. Can be recognized by the display device to judge whether or not the dust delivery valve is in an appropriate adjustment state.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIGS. 1 and 2, a self-propelled aircraft that is self-propelled by a crawler type traveling device 1 and has a boarding type operating unit 2 is provided at a front end side of a body frame 3 of a planted grain culm. The base end of the frame 4c of the mowing part 4 including the raising device 4a and the clipper-type mowing device 4b acting on the rotatably connected, and the mowing part frame 4c is vertically moved with respect to the body frame 3 by the lift cylinder 5. The threshing device 10 configured to vertically move the mowing unit 4 to the descending work position and the ascending non-working position by swinging the mocking unit 4 to thresh the cut culm from the transport device 4d of the mowing unit 4, The grain tank 6 for storing the threshing grains from the threshing device 10 is provided in the self-propelled machine to constitute a combine for harvesting rice, wheat and the like.

As shown in FIG. 3, the threshing device 10 comprises a threshing section having a handling chamber 11 located on the front side inside the threshing machine body, and a sorting section having a sorting chamber 12 extending from below the handling chamber 11 to the rear. It is prepared for this purpose.

The threshing unit supplies the tip side to the handling chamber 11 while transferring the harvested culm from the transporting device 4d of the harvesting unit 4 by the threshing feed chain 13 and transporting it toward the rear of the machine, and the tip side is fed to the handling chamber. Threshing processing is carried out by the handling barrel 14 which rotates at, and threshing discharge straws are carried out by the threshing feed chain 13 from the dust feed port 15 at the rear of the handling chamber 11. Furthermore, dust-sending valves 16 are provided at a plurality of positions in the front-rear direction of the machine above the handling barrel 14 in the handling chamber, and each dust-sending valve 16 adjusts the flow direction of a threshing-processed product such as grain or broken straw. Thus, the time for the threshing processed material to stay in the handling room 11 and be handled is adjusted.

The sorting section has a front end side below the handling chamber 11 for threshing-treated products such as grains dropped from the receiving net 17 of the handling chamber 11 and straw scraps discharged from the dust inlet 15 of the handling chamber 11. The oscillating sorting device 18 which is freely swingable and driven and the sorting wind supplied by the Karato 19 located below the front end side of the oscillating sorting device 18 sorts the grains into dust and dust. The No. 1 processed product is carried out to the lateral side of the machine by the No. 1 screw conveyor 21 located at the bottom of the sorting chamber 12, and the No. 2 processed product of the grain is transferred to the No. 2 screw conveyor 22 located at the bottom of the sorting chamber 12. , This 2nd screw conveyor 22
It is conveyed to the front end side of the sorting chamber 12 by the lifting device connected to the terminal end of the device on the lateral outside of the machine body and returned to the front end side of the swing sorting device 18. Then, the dust is discharged to the outside of the machine through the discharge port 23a of the dust removal fan 23 and the dust discharge port 24 of the threshing machine together with the sorting wind.

As shown in FIG. 5 and the like, among the structures constituting the threshing machine body, the top plate 31, the front wall plate 32 and the rear wall plate 33 forming the upper part of the handling chamber 11 and the handling Muroto top plate 3
1. The front end side is located near the upper part of 1, and the rear end side is the handling room top plate 31.
It is provided with an upper cover plate 34 which is a cover for the threshing portion which projects rearward from the cover and covers the upper side of the handling room top plate 31 and which forms the upper part of the rear side portion of the sorting room 12. Also, an upper structure 30 in which the handling cylinder 14 is rotatably supported by the front wall plate 32 and the rear wall plate 33.
To form a handling chamber portion other than the handling chamber portion formed by the top plate 31, the front wall plate 32, and the rear wall plate 33, and a sorting chamber portion other than the sorting chamber portion formed by the airframe upper cover plate 34. And a lower tongue plate, a side wall plate, a front side wall plate, and the like, which are separate from the platform structure 38 supporting the threshing feed chain 13. The connecting member 35 of the upper structure 30, which is located on the side opposite to the handling mouth side with respect to the handling cylinder 14, is provided on the support portion of the base-side structure 38 in an axis parallel to the rotation axis of the handling cylinder 14. It is rotatably connected around the core 36.

That is, the upper structure 30 is connected to the base structure 38 so as to be vertically swingable around the shaft core 36, and this swinging operation is performed, whereby the upper structure 30 shown in FIG.
As shown in FIG. 5, the handling opening 25 of the handling room 11 has a size of a normal working size, and a lowering closed position for threshing work, and as shown in FIG. It is designed to switch to the raised open position.

As shown in FIGS. 6 and 7, each of the dust-sending valves 16 is provided with a support shaft 16a formed of a connecting bolt mounted at an intermediate portion of the dust-sending valve 16 in the longitudinal direction, so that the handling chamber top plate 31 is provided.
Since it is rotatably connected to the upper structure 30, it is attached to the upper structure 30 so that the mounting angle A shown in FIG.

When the mounting angle A of the dust feed valve 16 changes, the direction in which the threshing material is guided and flows by the dust feed valve 16 changes. If this flow direction changes, it becomes difficult for the threshed material to swirl in the handling chamber, and the time to quickly pass through the handling chamber 11 to stay in the handling chamber 11 becomes shorter, or the threshing processed product easily turns to pass through the handling chamber. It takes time to handle
The time to stay in 1 may become longer.

As shown in FIGS. 6 and 8, a connecting pin 41 extending upward from one end of each dust delivery valve 16 is provided.
The interlocking rod 42 in which the portion corresponding to the connecting pin 41 is externally fitted relative to the portion protruding from the handling chamber top plate 31 to the outer surface side, and among the plurality of dust delivery valves 16. Of the support shaft 16a provided in the dust-sending valve 16 located on the rearmost side of the body of the operating lever, the base end portion of which is relatively rotatably attached to the portion of the support shaft 16a protruding to the outer surface side of the handling chamber top plate 31. 43
And a positioning member 44 fixed to the rear end of the handling room top plate 31 to constitute an adjustment operation device for adjusting the angle of each dust feed valve 16.

That is, as shown in FIG. 6, the tip side of the operating lever 43 extends rearward from the handling room top plate 31 and the upper cover plate 34 of the machine body toward the rear side of the machine body, and the operating lever 43 is operated.
The operation portion 43a on the front end side of the upper structure 30 protrudes into the sorting chamber 12 from between the rear wall plate 33 and the upper cover plate 34 of the machine body, and operates the upper structure 30 to the ascending open position to move the upper structure 30. 6 has the operating portion 43a inside the portion forming the sorting chamber 12, and as shown by the chain double-dashed line in FIG. While being elastically deformed into a swinging state so as to come out of the notch portion 44a of the positioning member 44, the swinging operation is performed in the lateral direction of the machine body around the axis of the support shaft 16a. Then, the arm portion 43 provided on the proximal end side of the operation lever 43.
b engages with the interlocking pin 41 of the dust bearing valve 16 in the last direction, and the dust bearing valve 16 in the last direction is supported by the support shaft 16a.
The dust-sending valve 16 is rotated about its axis to adjust the mounting angle A of the dust-sending valve 16 so as to increase or decrease. Then, the interlocking rod 42 interlocks with the rotation of the dust transfer valve 16 in the final direction, and causes the other dust transfer valves 16 to rotate about the axis of the support shaft 16a in the same rotation direction and in the same rotation as the dust transfer valve 16 in the final direction. Rotate the corner to increase the mounting angle A of the dust delivery valve 16,
Adjust to be small. When the dust delivery valve 16 reaches a desired mounting angle, the elastic deformation operation of the operation lever 43 is released, and the tip end side is provided with a plurality of cutout portions 44 of the positioning member 44.
By inserting one of the notches 44a selected from "a", the operating lever 43 is moved to the operating position.
It can be held by the lock by 4, and each dust feeding valve 16 can be fixed to the adjusted mounting angle.

As shown in FIG. 6 and FIG. 9, the tip portion 41a of the interlocking pin 41 provided in the dust-sending valve 16 located on the most front side of the fuselage among the plurality of dust-sending valves 16 is
Arc-shaped elongated hole 34a provided in the machine body upper cover plate 34
While protruding outward from the plurality of indicators 51, 5
The display unit 54 including the reference numerals 2, 53 is attached to the body upper cover plate 34.
Is provided on the outer surface side of the dust collecting valve 16 outside the upper structure 30.
A display device 50 for displaying the adjustment state of is configured.

That is, when the angle of the dust delivery valve 16 is adjusted, the interlocking pin 41 moves along the long hole 34a, and the indicators 51, 52, 52 of the indicator 54 corresponding to the tip end 41a of the interlocking pin 41. 53 changes. Multiple indicators 51,5
Of the 2, 53, the index 51 is the mounting angle A of the dust feed valve 16
Is adjusted to an open state that minimizes the staying time of the threshed material, and the indicator 52 indicates that the dust transfer valve 16
Indicates that the installation angle A was in the middle and the staying time of the threshed product was adjusted to an intermediate standard state. It shows that it has been adjusted to the closed state for the longest time. As a result, the tip 41a of the interlocking pin 41 serves as a pointer to indicate each index 51, 52, 53, and by knowing which index 51, 52, 53 the pin tip 41a indicates. It is possible to determine what kind of mounting angle adjustment the dust feed valve 16 is in.

As shown in FIG. 1, a cover 60 attached to the front end side of the upper structure 30 covers the upper part of the grain and culm transporting device 4d of the mowing section 4 at the time of work and removes dust generated in the mowing section 4 in the operating section. It is one that makes it difficult to scatter.

That is, as shown in FIG. 5, by operating the upper structure 30 to the raised open position, the handling opening 25 opens wider than in the normal operation and the handling cylinder 14 rises with the upper structure 30. The handling chamber 11 and the sorting chamber 12 are opened so that the inside of the handling chamber 11 and the sorting chamber 12 can be easily cleaned and the management work can be performed. Then, in this case, by putting a hand into the sorting chamber forming portion inside the upper structure 30 from the handle side, the operation lever 43 is operated to operate the dust feeding valve 1
6 can be rocked.

When the upper structure 30 is in the lowered closed position and the handling chamber 11 and the sorting chamber 12 are closed, such as when performing a harvesting operation, the dust control valve 16 can be operated by seeing the display device 50 even from the operation unit 2. It is possible to know what kind of mounting angle adjustment is being made.

[Brief description of drawings]

1] Side view of the whole combine

FIG. 2 is a plan view of the whole combine.

[Fig. 3] Vertical side view of the threshing device

FIG. 4 is a vertical cross-sectional view of the upper structure in a lowered closed position.

FIG. 5 is a vertical cross-sectional view of the upper structure in a lifted open position.

FIG. 6 is a vertical cross-sectional side view of the dust-discharging valve installation portion of the threshing device.

FIG. 7 is a perspective view of the dust delivery valve operating device in a disassembled state.

FIG. 8 is a plan view of the dust delivery valve operating device, (a) shows a state where the dust delivery valve is operated to the open side, and (b) shows a state where the dust delivery valve is operated to the closed side. .

FIG. 9 is a plan view of a display device.

[Explanation of symbols]

11 handling room 12 Sorting room 14 handle 30 Upper structure 33 Rear wall of the handling room 34 Airframe cover plate 38 structure 43 Operation lever 50 display

Claims (3)

[Claims] 1. An upper position structure in which an upper structure forming a part of the handling chamber and the sorting chamber and supporting the handling barrel is in a raised open position with respect to a structure forming another portion of the handling chamber and the sorting chamber. A threshing device that is vertically swingably connected to a lower closing position and has a dust transfer valve adjustably attached to the upper structure, wherein an operation lever for adjusting the dust transfer valve is provided in the upper structure. A threshing device placed inside the body so that it can be operated freely. 2. The threshing device according to claim 1, wherein the operation lever is arranged so as to project into the sorting chamber from between the rear wall of the handling chamber of the upper structure and the upper cover plate of the machine body. 3. The threshing device according to claim 1, wherein a display device for displaying the adjustment state of the dust delivery valve is provided outside the upper structure.