JPH08228559A - Reaping part-fixing mechanism in reaping part-sliding type combine harvester - Google Patents

Abstract

PURPOSE: To enable to change positions of reaping parts to right and left while an operator is riding on a seat, or fix the reaping parts at arbitrary positions in a combine harvester capable of changing the positions of reaping parts to right and left through a parallel link. CONSTITUTION: A lever 64 for changing positions of reaping parts is arranged near an operation seat at the reaping parts side and the lever 64 is supported by frames, etc., of a machine body at three positions of upper, middle and lower, the middle position is removably engaged with a guide groove 66a, a spring 60 is outwardly engaged with a lower part of a middle position of the lever and a lower end part of the lever 64 is engaged in bored plural fixing holes for fixing a parallel link and a reaping blade, then the reaping parts are fixed in right and left arbitrary positions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine for fixing a slide of a mowing section in a combine in which the mowing section can be slid to the left and right.

[0002]

2. Description of the Related Art Conventionally, there has been known a combine in which a pretreatment section having a cutting blade for grain cutting is connected via a parallel link to a bracket which is integrally fixed to the machine body so as to be swingable left and right. Has become. For example, there is a technique disclosed in Japanese Utility Model Publication No. 2-142123.

[0003]

However, the conventional reaper as described above can be fixed only at the two positions of the left and right ends, and the lever for adjusting the left and right positions is located on the side of the machine body.
There was a problem in operability because the driver's seat had to be adjusted separately for alignment.

[0004]

The problem to be solved by the present invention is as described above, and the means for solving this problem will be described below. That is, in a combine in which the position of the mowing part can be switched to the left and right via a parallel link, a lever for switching the position of the mowing part is arranged near the driver's seat on the side of the mowing part and the lever is extended downward. It is urged downward by a spring and supported at three positions: upper, middle and lower,
It is configured to be fitted in the guide groove at the middle position, and to be fittable in a plurality of engaging holes formed at the lower end, and to be fixed at an arbitrary position.

[0005]

Next, the operation will be described. From the seat on the upper right side of the mowing section, the slide operating lever can be operated to slide the mowing section to the left and right positions. This lever can be fixed, and since the support of the central part is fitted in the guide groove which can be freely attached and detached, the assembly can be done easily, and further, the spring is fitted on the middle part of the lever. Then, it is possible to prevent the withdrawal by being biased by the locking hole at the lock position.

[0006]

EXAMPLES Next, examples will be described. FIG. 1 is a front view of a combine, FIG. 2 is a schematic perspective view showing a fixing mechanism of a slide type cutting unit of the present invention, FIG. 3 is a view showing a supporting state of a slide operation lever upper position, and FIG. FIG. 5 is a side view of the mowing unit, FIG. 6 is a plan view of the same, FIG. 7 is a partial plan view showing swing of the slide link, and FIG. 8 is a mowing unit. FIG. 9 is a plan view showing a lower support structure of the pretreatment mechanism, and FIG. 9 is a plan view showing a drive system of the same.

The overall structure of the combine will be described with reference to FIGS. 1 and 8. Combine the left and right crawlers 44L / 4
Chassis 10 on a crawler traveling device supporting 4R
And an engine (not shown) is mounted on the front right side of the chassis 10. A mission case M is arranged in front of the chassis 10, and the drive wheels of the left and right crawlers 44L and 44R are mounted on the mission case M. The axle 43 is suspended. In the upper part of the chassis 10, a threshing section D having a feed chain 41 and a handling cylinder provided therein is provided on the left side in the traveling direction, and below the threshing section D, kernels and swing sorting for selecting grains falling from the threshing section D. It is equipped with a sorting unit that houses the equipment. Further, on the right side of the chassis 10, a paddy tank 46 is arranged above, and the paddy is stored in the fried grain conveyor 45 from the sorting section, and a padding section for paddy is provided below the paddy. .

A front column 47 and an operating portion S having a seat 48 are formed on the right front portion of the chassis 10. The front column 47 has a steering / mowing operation for turning operation and mowing / lowering. Steering members such as a lift lever L1 and a traveling speed change lever L2 are arranged, and on the side column,
A reaping clutch lever L3, a threshing clutch lever L4, and the like are provided.

A reaping section K is arranged on the left side of the operating section S, that is, on the front side of the left side portion of the chassis 10. Here, the outline of the reaping unit K will be described with reference to FIGS. 1 and 5. The front part of the reaping section K is a raising device 22L / 22R, a star wheel 19L / 19R, a scraping belt 20L / 20.
A pretreatment mechanism including R, a cutting blade 21 and the like is arranged, and the pretreatment mechanism is supported by a lateral transmission shaft case 18 which is disposed laterally below the cutting unit K.

As shown in FIGS. 6 and 8, link brackets 61L and 61R are fixedly provided on the left and right ends of the lateral transmission shaft case 18, and the link brackets 61L and 61R are fixed.
Slide links 17L and 17 that form parallel links
The front end of R is pivotally supported, and this slide link 17L ・ 17
The rear end of R is pivotally supported on the left and right ends of the lateral support rod 16 so as to be rotatable left and right. The lateral transmission shaft case 18 is slidable left and right by the rotation of the slide links 17L and 17R, and the lateral support rod 16 is laterally installed at the rearmost part of the mowing section K. The vertical support rod 14 is fixed to the front end of the vertical support rod 14 so as to project forward from the shaft case 13.

Power transmission to the pretreatment mechanism is as shown in FIGS.
As shown in FIG. 5, a reaping input shaft case 13 is provided with a reaping input shaft 24 having a reaping input pulley 23 attached to the right end thereof, and the reaping input shaft case 13 is pivotally supported at a middle portion thereof. The rear end of the swing transmission shaft 26, which is rotatably supported in the swing transmission shaft case 25 and extends forward, is transmitted from the reaping input shaft 24 by a bevel gear meshing. The front end of the shaft 24 is the right lifting device 22R.
Is transmitted to the right-lifting transmission shaft 27 which is a transmission shaft for. On the other hand, the right-lifting transmission shaft 27 is transmitted to the lower right transmission shaft 29 downward via the split transmission case 28, and is transmitted to the horizontal transmission shaft pivotally supported in the horizontal transmission shaft case 18. Further, from the left end thereof, the transmission shaft 31 is raised to the left and is raised, and is transmitted to the left raising device 22L. Also, Star Wheel 19
The transmission shaft to the R / scraping belt 20R / cutting blade 21 is branched from the lateral transmission shaft, and the star wheel 19L / scraping belt 20L is driven by the drive of the star wheel 19R / scraping belt 20R.

Further, at the left end of the reaping input shaft case 13,
The transport drive shaft case 33 is rotatably supported for adjusting the handling depth, and in the transport drive shaft case 33,
A transport drive shaft 34 is supported in a substantially vertical direction by a bevel gear meshingly supported on the left end of the reaping input shaft 24, with a drive sprocket 36 of a tip transport device 35 at its upper end and a drive sprocket of a vertical transport device 38 at its lower end. It is fixed and configured to transmit power.

Next, the mowing part fixing mechanism of the mowing part slide combine of the present invention will be described. As shown in FIG. 7, the right slide link 17R has a right end
Three middle and left locking holes 17A, 17B, 17C are drilled, while on the right side link bracket 61R,
A fitting insertion hole 61a for fitting a lower end portion 64c of a slide operation lever 64, which will be described later, is formed, and the slide operation lever 64 is passed through the fitting insertion hole 61a and the locking holes 17A, 17B ,. As shown in FIG. 6, the slide links 17L and 17R are fixed to the three positions of the right position A, the middle position B, and the left position C by fitting them into one of the 17C, so that the cutting section K is left, middle, and It is configured to be fixed in three positions on the right.

When the slide operating lever 64 is lifted upward, the locking holes 17A, 17B, 17C
The lower end portion 64c of the slide operating lever is pulled out from either of the above, and in this state, the slide operating lever 64
The cutting unit K is configured to move to the left and right when it is turned to the left and right. In this embodiment, the locking hole 17
Although A, 17B, and 17C are drilled at three locations, the number of holes may be two or four or more, and the number of holes is not limited.

Regarding the slide operation lever 64 described above,
This will be described with reference to FIGS. 1 to 6. The slide operation lever 64 is arranged above the right side of the reaping section K, that is, above the right raising device 22R. As shown in FIG. 3, the upper portion 64a of the slide operating lever 64 is rotatably supported by the mounting stay 65a that is locked to the upper right transmission case 65, and the middle portion of the slide operating lever 64 is provided. As shown in FIG. 4, 64b is detachably supported in the guide groove 66a of the stay, which is fixedly installed in the lower right transmission case 66, and the lower end portion 64c is one of the right slide links 17R as described above. Locking holes 17A, 17B, 17
It is inserted in C. Incidentally, as shown in FIG. 5, the midway portion 64b
A spring 60 is fitted around the lower part of the
It is urged to fit into the locking holes 17A, 17B, 17C of c.

As described above, the slide operation lever 64
Is located near the driver's seat, and the mounting stay 65a is attached from above.
When the slide operation is supported by the guide groove 66a and the right side link bracket 61R, the slide operation lever 64 can be operated while being in the driver's seat, and the slide operation lever 64 is lifted and manually pushed and pulled to rotate to a desired position. , When the hand is released, the lower end 64c is locked by the biasing force of the spring 60 and the locking hole 17A
Lock by inserting into either 17B or 17C.

[0017]

Since the present invention is constructed as described above,
It has the following effects. That is, since the slide operating lever 64 is arranged above the right side of the mowing section K, the slide operating lever 64 is lifted upward from the seat 48 to determine the fixing position of the mowing section K. From the above, with the lower end 64c removed, the slide operation of the reaping section K can be performed simply by rotating the slide operation lever 64 to the left and right, and a plurality of locking holes are provided. The slide can be fixed not only at the left and right ends of the reaping section K but also in the middle thereof, and the applicability in the field can be improved.

The slide operation lever 64 is supported at three points of an upper portion 64a, an intermediate portion 64b and a lower end portion 64c, and the intermediate portion 64b is detachably fitted in the guide groove 66a. , Compared with the support part of the round hole,
At the time of assembly, it is possible to omit the man-hours for inserting the intermediate portion 64b into the round hole first, and the spring 60 is provided below the intermediate portion 64b.
Is externally fitted to urge the fitting of the lower end portion 64c into the locking hole, so that the lower end portion 64c can be prevented from being pulled out from the locking hole.

[Brief description of drawings]

FIG. 1 is a front view of a combine.

FIG. 2 is a schematic perspective view showing a fixing mechanism of a slide type cutting unit of the present invention.

FIG. 3 is a diagram showing a supported state of a slide operation lever upper position.

FIG. 4 is a view showing a supporting state at the middle position.

FIG. 5 is a side view of a reaper.

FIG. 6 is a plan view of the same.

FIG. 7 is a partial plan view showing the swing of the slide link.

FIG. 8 is a plan view showing a lower support structure of the pretreatment mechanism of the mowing unit.

FIG. 9 is a plan view showing a drive system of the same.

[Explanation of symbols]

 K Mowing section 16 Horizontal support rod 17 Slide link 17A / B / C locking hole 18 Horizontal transmission shaft case 19 Star wheel 60 Spring 61 Link bracket 61a Fitting insertion hole 64 Slide operation lever 65 Right upper transmission case 65a Mounting stay 66 Lower right Transmission case 66a Guide groove

Claims (1)

[Claims] 1. In a combine in which the position of the mowing part can be switched to the left and right via a parallel link, a lever for switching the position of the mowing part is provided near the driver's seat on the side of the mowing part, and the lever is moved downward. And urge downward with a spring to support it at three positions: upper, middle and lower, and fit into the guide groove at the middle position, and the lower end can be fitted into a plurality of drilled locking holes. A reaping unit fixing mechanism for a vine part sliding combine, which is configured to be fixed at an arbitrary position.