JPH0520131Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a waste straw processing device that is attached to the rear of a combine harvester or the like and cuts or binds waste straw after threshing.

(b) Prior art Although conventional straw disposal equipment attached to combine harvesters etc. can be equipped with both a straw cutter device and a straw binding device, it is assumed that one or the other is always used. Therefore, both were not used at the same time, nor were they used alternately.

(c) Problems to be solved by the invention The purpose of the invention is to cut and spread the waste straw over the entire surface of the field, although depending on the type of field, it may not be possible to cut and spread all the waste straw during combine harvester operation. There are times when you want the cut straw to fall evenly and thinly. In such a case,
By activating the binding device and the cutter device alternately or every few times, the desired condition can be obtained by binding the sections and picking up the bundle later.

The present invention has made this possible.

(d) Means for solving the problems The purpose of the present invention is as described above, and next, the configuration for achieving the purpose will be explained.

An opening/closing body is provided to open and close the input port to the straw cutter device located at the rear end of the straw conveying device of the combine, and the opening/closing body can be opened and closed automatically. The structure is such that when the opening/closing body is opened, the waste straw passes through the straw removal cutter device, and the straw is removed from the straw removal cutter device. The straw binding device is configured to be driven, and the drive clutch device of the straw removal binding device is configured to be connectable and disconnectable in conjunction with the opening/closing action of the opening/closing body, and by adjusting the opening/closing time of the opening/closing body, the cutter A waste straw processing device characterized by being able to set the ratio of work and tying work.

(e) Embodiments and operations The purpose and structure of the present invention are as described above.Next, the structure of the embodiment shown in the attached drawings and the operation of the invention will be explained.

Fig. 1 is a drawing showing the processing state by the straw removal processing device of the present invention attached to a combine harvester, Fig. 2 is a rear perspective view of the straw removal cutter device of the invention, Fig. 3 is a plan view, and Fig. 4 5 is a left side view of the straw disposal device of the present invention, FIG. 5 is a right side view, and FIG. 6 is a right side view.
The figure is a perspective view of wires showing a switching structure using a manual switching lever, and FIGS. 7 and 8 are drawings showing the arrangement of a cam roller provided on a timing gear.

In FIG. 1, the overall configuration will be explained. The combine A has a conventional structure, in which harvested grain culms are transported and threshed by a reaping device, a conveyance device, a threshing device, etc., and the straw after threshing is passed through a straw chain 8 to a straw cutter device C. sent to. The straw removal bundling device B is fixed to the rear surface of the straw removal cutter device C.

Then, with the waste straw processing device of the present invention, the cutter device and the bundling device are used alternately, and the cut straw F and the bundling straw E are alternately scattered in the field as shown in Figure 1. be. By picking up the bundling straw E after the operator completes the work,
The cut straw F remains scattered thinly on the field.

Next, the configuration of the main parts of the present invention will be explained with reference to the drawings of FIGS. 2 to 6.

First, the straw cutter device C is driven by rotating the input pulley 10 together with the suction fan drive pulley 28 by the V-belt 23 wound around the drive pulley 27 at the rear of the combine harvester A.
It is being done.

26 is a tension pulley. The input pulley 10 is fixed to a high-speed rotary blade shaft 8, and a small-diameter gear 24 is fixed to the high-speed rotary blade shaft 8 immediately inside the input pulley 10.
4 meshes with the large-diameter gear 11 on the low-speed rotary blade shaft 9 to rotate the low-speed rotary blade shaft 9 at a lower speed than the high-speed rotary blade shaft 8.

A large number of high speed rotating blades 8a are arranged in parallel on the high speed rotating blade shaft 8, and a large number of low speed rotating blades 9a are arranged in parallel on the low speed rotating blade shaft 9. The straw is cut by passing the straw through the two blades that mesh with each other.

The high-speed rotary blade shaft 8 protrudes from the right side plate of the straw removal cutter device C to serve as a PTO shaft, and the drive pulley 15 of the straw removal bundling device B is fixedly installed.

A V-belt 22 is wound around the drive pulley 15,
The input pulley 13 of the straw binding device B is being driven. The tension pulley 14 that tensions the V-belt 22 constitutes a tension clutch device, and the tension pulley 14 is rotated upward by the tensioning action of the clutch wire 19.
It is configured to transmit power.

The clutch wire 19 is configured to operate in conjunction with the operation of an opening/closing body for switching between the straw removal cutter device C and the straw removal bundling device B, and to connect the clutch when the input port H is closed.

In the embodiment shown in FIGS. 2 and 3, the opening/closing body that closes the input port H to the straw cutter device C is composed of three stays 1a, 1b, and 1c.

However, it is not limited to this structure, and may be a plate body.

Stays 1a, 1b, 1c are straw cutter device C
At the front end of the inlet of the inlet H, the base is horizontally rotatably supported on rotary support rods 3 arranged on the left and right sides. Biasing springs 25a, 25b, 25c are interposed in the horizontally rotatable portions, so that the stays 1a, 1b, 1c always bias the input port H in the direction of opening.

Stays 1a, 1b, 1 urged in the opening direction
The rotating arm 6 rotates c in the closing direction.
It is. The rotating arm 6 has its pivot point 6a in a part of the frame of the straw cutter device C, and is rotated by a timing gear 7 or a wire 20 operated by a manual switching lever 29. wire 2
A wire fitting 20a is connected to the rear end of the wire fitting 20a, and a pin 30 of the rotating arm 6 is fitted into a long hole 20b of the wire fitting 20a.

Due to the rotation of the rotation arm 6 by these operations, the tip end is brought into contact with the follower roller 5 of the stay 1c. The follower roller 5 moves the stays 1a, 1b, 1c in the closing direction of the input port H against the biasing springs 25a, 25b, 25c so as not to provide resistance to the contact state with the rotating arm 6. Push it out.

Since the follower roller 5 and the rotating arm 6 are in contact only with the stay 1c, the other three stays 1a and 1b are given rotational force in the closing direction by the connecting rod 2. . When the stays 1a, 1b, 1c are rotated in the closing direction in this manner, the stays 1a, 1b, 1c are positioned diagonally to cover the input port H.

That is, the rotation range of the stays 1a, 1b, 1c is suppressed narrowly, and the stays 1a, 1c are kept in a narrow range in the direction in which the waste straw flows.
b and 1c are positioned so that the waste straw is sent to the waste straw binding device B without resistance.

The structure that provides the rotational force of the rotation arm 6 will be explained. The other end of the low-speed rotary blade shaft 9 of the straw removal cutter device C protrudes outside the right side plate, and a small diameter gear 21 is fixed to the protruding portion of the low-speed rotary blade shaft 9. The small diameter gear 21 is the timing gear 7.
It meshes with the With this configuration, the timing gear 7 rotates at a low speed. Further, a cam roller 17 is pivotally supported on the outer surface of the timing gear 7. The rotation of the timing gear 7 causes the cam roller 17 to revolve, causing the cam arm 16 to rotate.

The cam arm 16 is pivotally supported by the side plate of the straw cutter device C at a pivot point 16a, and allows its upper end to rotate significantly. A connecting link 12 is pivotally supported at the upper end of the cam arm 16, and the connecting link 1
2 is pivotally connected to a part of the rotating arm 6 via a ball joint.

Therefore, as the timing gear 7 rotates,
Each rotation, the cam roller 17 rotates the cam arm 16.
Press to close the stays 1a, 1b, and 1c of the input port H. Due to this closure, the waste straw reaches the waste straw binding device B and is bundled and released.

In addition, in order to adjust the closing time of the cam roller 17, the cam roller 17 is
It is possible to increase the number of 7's to 2 or 3.

In addition, the tension pulley 14 is rotated in conjunction with the clutch wire 19 to connect the clutch so that the straw binding device B starts to be driven only when the input port H is closed by the stays 1a, 1b, and 1c. It is structured as possible.

In addition, if the timing gear 7 is used to continue the reaping work while automatically switching, the tension pulley 14 will have to engage and disengage the clutch many times.
Since the durability of each part is unreasonable, a fixing nut device 18 with a handle is provided on the pivot shaft of the tension pulley 14 to tension the tension pulley 14 in the joining direction of the clutch so that it can be fixed.

In order to take this measure, the clutch wire 19
A long hole 19b is opened in the metal fitting 19a at the end of the
The pin 36 of the rotating arm 6 is fitted here.

Furthermore, as shown in FIG. 6, it is also possible to operate the waste straw binding device B by manually closing the input port H from the driver's seat of the combine harvester A from time to time using the manual switching lever 29. If the manual switching lever 29 is held in a tensioned state, even if the cam arm 16 tries to return, the pin 30 will be pulled forward by the long hole 20b of the wire fitting 20a. Because
I can't go back. With this operation, stay 1
A, 1b, and 1c remain closed, and only binding is performed.

On the other hand, if you wish to continue only the cutter operation, loosen the manual switching lever 29 and switch the wire fitting 20a.
to the rear and remove the cam roller 17 of the timing gear 7. As a result, the cam arm 16 does not rotate forward, the input port H always remains open, and only the covering operation is performed.

The clutch wire 19 connects the rotating arm 6, and when the rotating arm 6 rotates to close the input port H, the clutch of the straw binding device B is always connected. Even though the waste straw is conveyed to the waste straw bundling device B, it is not the case that the waste straw is not tied.

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, depending on the field conditions, there are areas where you want to spread a lot of cut straw into the soil, and there are too many compost areas.
In cases where there are separate areas where you do not want to add any more cut straw, it is possible to adjust the amount of cutter processing and the amount of binding processing by adjusting the opening and closing time of the opening/closing body. This allows the desired amount of straw to be laid down.

Second, it is too much to spread the entire amount of shell culms in the field, but if you want to spread them in small amounts throughout the field,
Automatic switching makes it possible to obtain a desired state.

Third, the rotating arm 6 is connected by the clutch wire 19, and when the rotating arm 6 rotates to close the input port H, the clutch of the straw binding device B is configured to be connected. Therefore, there is no problem that the waste straw cannot be tied even though it has been transported to the waste straw binding device B.

[Brief explanation of drawings]

Fig. 1 is a drawing showing the processing state by the straw removal processing device of the present invention attached to a combine harvester, Fig. 2 is a rear perspective view of the straw removal cutter device of the invention, Fig. 3 is a plan view, and Fig. 4 5 is a left side view of the straw disposal device of the present invention, FIG. 5 is a right side view, and FIG. 6 is a right side view.
The figure is a perspective view of wires showing a switching structure using a manual switching lever, and FIGS. 7 and 8 are drawings showing the arrangement of a cam roller provided on a timing gear. A... Combine harvester, B... straw binding device, C...
...Straw cutter device, H...Input port, 1a, 1
b, 1c...stay, 6...swivel arm, 7...
Timing gear, 16...Cam arm, 17...
Cam roller, 29...manual switching lever.

Claims (1)

[Scope of utility model registration request] An opening/closing body is provided to open and close the input port to the straw cutter device located at the rear end of the straw conveying device of the combine, and the opening/closing body can be opened and closed automatically. The structure is such that when the opening/closing body is opened, the waste straw passes through the straw removal cutter device, and the straw is removed from the straw removal cutter device. The straw binding device is configured to be driven, and the drive clutch device of the straw removal binding device is configured to be connectable and disconnectable in conjunction with the opening/closing action of the opening/closing body, and by adjusting the opening/closing time of the opening/closing body, the cutter A waste straw processing device characterized by being able to set the ratio of work and tying work.