JPH046514Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a reaping harvester in which a reaping section is connected to a traveling machine body equipped with a threshing device and left and right side clutches so as to be movable up and down.

In this type of reaping/harvesting machine, even when turning the machine, which requires the greatest amount of horsepower, if the reaping conveyance clutch such as the reaping clutch in the transmission system to the reaping section is left in the engaged state, the reaping conveyance system Since horsepower is consumed in driving the engine, problems such as engine stoppage are likely to occur.

For this reason, conventionally, in order to eliminate power loss by stopping the reaping section when reaping work is not being performed, the reaping clutch is disengaged in conjunction with the raising operation of the reaping section, and a special operation is required. A reaping/harvesting machine has been proposed in which the clutch is automatically disengaged when the reaping section is raised without the need for this (see, for example, Japanese Utility Model Publication No. 8094/1983).

However, in the configuration of this prior art, the reaping clutch is always disengaged when the reaping section is raised, so although the operation is simple, the following problems occur. In other words, considering traveling in the field with the reaping part raised, in addition to the turning mentioned above, there is also the need to travel to unload the harvested grain to the transport vehicle waiting outside the field, and to reap and harvest. There is a run after all the work is completed. Among these runs with the reaping part raised,
The traveling distance after unloading or completing work is usually longer than the preceding turning, and may not involve turning. In conventional reaping and harvesting machines, the reaping clutch is automatically disengaged when the reaping section is raised, so the reaping conveyance system stops driving in any of the three movements mentioned above, and the reaping conveyance system stops driving even though there is no turning. There are problems such as stopping the harvester, reducing work efficiency unnecessarily, or causing grain culms that have not been completely absorbed into the harvester to fall off the harvester while traveling a long distance. Ta.

The present invention solves the above problems of the prior art and aims to provide a reaping and harvesting machine in which the reaping and transporting clutch is automatically disengaged only when turning the machine where the greatest horsepower is required.

In order to achieve the above object, the reaping/harvesting machine of the present invention automatically operates the reaping conveyance clutch in conjunction with the cutting operation of the side clutch when the reaping section is elevated above the reaping action range. It is equipped with a mechanism that turns the switch on and off.

Therefore, according to the present invention, the following effects can be obtained. By combining the side clutch disengagement operation and the reaping section raising operation, which are essential operations for turning the machine, the reaping conveyance clutch such as the reaping clutch is automatically disengaged only when these operations are performed at the same time. To reliably prevent the engine from stopping when the aircraft turns, which requires horsepower, without any special operations. Moreover, when traveling in a straight line by simply raising the reaping section, the reaping section remains driven and continues threshing the grain culms along the conveyance path, which may reduce work efficiency unnecessarily or prevent the grain from being completely taken in. It has the effect of preventing the shedding of unfinished grain culms.

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 1, a combine harvester, which is an example of a reaping and harvesting machine, is constructed by installing a pulling device 3 and a clipper at the front of a traveling body A that is equipped with a threshing device 1 and a pair of right and left crawler traveling devices 2, 2. A reaping section B equipped with a type reaping device 4 and a device 6 for conveying and supplying the harvested grain culm to the feed chain 5 of the threshing device 1
are connected to each other via a hydraulic cylinder 7 so that they can be driven up and down.

Furthermore, as shown in FIG. Belt tension type clutches 13, 14 are connected between the power take-off shaft 11 of the transmission case M and the input shaft 12 of the reaping section B, respectively.
15, and left and right side clutches 16, 16 are interposed in the transmission system from the input shaft 9 to the left and right crawler traveling devices 2, 2 within the traveling mission case M.

As shown in FIG. 3, when the reaping part B is in a raised position above the reaping action range, and in conjunction with the cutting operation of the side clutch 16 or 16, the reaping clutch (reaping transport (This is an example of a clutch.) 15 is provided with a mechanism 17 that automatically disconnects and operates the clutch.

The operating device for the reaping clutch 15 comprises a tension arm 19 of the reaping clutch 15 that is biased toward the entry side via a spring 18, and a swingable operating arm 21 provided near the reaping clutch lever 20. and the reaping clutch lever 20 via the release wire 22.
The tension arm is attached to the base end of the tension arm by pressing and swinging the operating arm 21 in conjunction with the swinging operation of the lever 20 from the clutch disengaged position (OFF) to the clutch engaged position (ON). A cam 23 is provided in series to operate the cam 19 by cutting it against an elastic biasing force.

The interlocking mechanism 17 is constructed as follows.

That is, a release wire 25 is provided that links the depression operation pedals 24, 24 of the side clutches 16, 16 and the operating arm 21, and an inner wire 2, which is a component of the release wire 25, is provided.
5a and the outer wire 25b, the mounting bracket 26 is attached to one end of the outer wire 25b.
is provided so as to be swingable in the wire hanging direction and biased in the inner wire loosening direction via the spring 27, and the mounting bracket is provided near the swinging fulcrum of the reaping frame 28 of the reaping section B. 26 is provided with a swingable displacement member 30 linked via a release wire 29, and this displacement member 30
The reaping frame 28 corresponding to the reaping frame 28 is provided with a cam 31 that forcibly swings the mounting bracket 26 against the elastic biasing force until it returns to the desired linked state when the reaping section B rises above the reaping action range. They are installed consecutively.

When the reaping section B is located within the reaping action range, the inner wire 25a is in a slack state, so the pedal 24 or 24 of the side clutch 16 or 16 is moved from the clutch engaged position (ON) to turn the aircraft. Clutch disengagement position (OFF)
Even if the lever is pressed down, the actuating arm 21 does not swing, and the reaping clutch 15 does not move when the reaping clutch lever 2
It is maintained in the operated state at 0.

When the reaping section B is raised above the reaping action range, the mounting bracket 26 is swung against the elastic urging force, and the release wire 25 is maintained in the desired linked state. In this state, when the pedal 24 or 24 of the side clutch 16 or 16 is depressed to turn the aircraft, the operating arm 21 is forcibly swung, and the tension arm 19 of the reaping clutch 15 resists the biasing force of the spring 18. It is operated by cutting.

In the above-mentioned embodiment, the fact that the reaping section B has risen above the reaping action range is configured to be detected by the amount of vertical displacement of the reaping section B with respect to the traveling machine body A, but the elevation of the reaping section B is controlled by position. In some cases, it may be configured and implemented to capture the amount of swing operation of the elevation operation lever.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

Fig. 1 is a side view of the front part of the combine, Fig. 2 is a transmission system diagram of the main parts, and Fig. 3 is an operation system diagram. A... Traveling machine body, B... Reaping section, 1... Threshing device, 5... Feed chain, 15... Reaping conveyance clutch, 16... Side clutch, 17... Interlocking mechanism.

Claims (1)

[Scope of claims for utility model registration] 1 Threshing device 1 and left and right side clutches 16,
In a reaping harvester in which a reaping section B is connected to a traveling machine body A having a mower 16 so as to be movable up and down by driving, when the reaping section B is at an elevated position above the reaping action range and when the side clutch 1
A reaping/harvesting machine characterized by being provided with a mechanism 17 for automatically cutting and operating a reaping and conveying clutch 15 in conjunction with the cutting operations of 6 and 16. 2. The reaping harvester according to claim 1, wherein the reaping conveyance clutch 15 is a reaping clutch interposed in a transmission system to the reaping section B.