JPS642588Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention consists of a rear body including a threshing device, a reaping section placed in front of the rear body, a lower end of which is pivoted around a transverse axis on a traveling machine frame of the rear body, and an upper end of which is pivoted around a horizontal axis. A swinging frame configured to be able to swing forward and backward, and a fixed frame provided on the traveling machine frame for fixing the swinging frame in a backward tilted position. The frame of the reaping section is pivotally supported, and the reaping section is configured to be able to move up and down with respect to the rear body and to move forward and away by the swinging of the swinging frame. The present invention relates to a combine harvester in which a winding transmission device is stretched across an input shaft on the side of the harvester.

In this type of combine harvester, by releasing the fixed connection between the rear body and the reaping unit and moving the reaping unit forward away from the rear body, a sufficiently large space is provided between them, making it easy to perform maintenance such as servicing and inspection of the engine and the traveling transmission case disposed at the front end of the rear body, or the reaping device and the vertical conveying device disposed at the rear end of the reaping unit, and the guiding action of the swinging frame makes it easy to reassemble after maintenance without requiring special alignment, etc. However, if the wrapped transmission device remains in a transmittable state even when the reaping unit is moved forward away from the rear body, the wrapped transmission device gets in the way of maintenance work even if a sufficiently large maintenance space can be secured as described above, and even if such an obstruction is to be eliminated, it is difficult to remove and install the wrapped transmission device.

The purpose of the present invention is to make it possible to rationally solve the above-mentioned maintenance problems using simple means such as improving the arrangement of both shafts. In the configuration described above, the distance between the axes of the drive shaft on the rear body side and the input shaft on the reaping section side decreases as the reaping section moves away from the front. It is characterized by being placed in the state.

That is, in the case of the present invention, when the reaping section is moved away from the front, the wrap-around transmission device stretched between the drive shaft on the rear body side and the input shaft on the reaping section side is greatly reduced. In the relaxed state, a sufficiently wide space can be formed between the rear end of the reaping device and the front end of the rear fuselage, which also makes it possible to easily remove the wrap transmission device, allowing for the desired maintenance can be carried out very easily. Moreover, it has become possible to simplify maintenance as described above by simply modifying the mounting position of the drive shaft and input shaft.

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

As shown in FIG. 1, a rear fuselage A is equipped with a threshing device 1, an engine E, a pair of left and right crawler traveling devices 2, 2, and a traveling transmission case M for the traveling devices 2, 2. lifting devices 3, 3, a clipper type reaping device 4, and a vertical conveying device 6 that gradually changes the harvested grain culm to a sideways posture while conveying and supplying it to the threshing feed chain 5 of the threshing device 1.
and extending forward from the reaping device 4 side through the central portion between the two pulling devices 3, 3 and both outer sides of both the pulling devices 3, 3, respectively.
In a combine harvester, which is equipped with a reaping section B having a weed divider 8 connected to the tip thereof, and is configured to raise and reap planted stem culms as the machine advances, and then thresh them. , the reaping section B is
It is fixedly connected to the rear fuselage A in such a manner that it can be driven up and down and moved forward and away, and its specific structure is as follows.

As shown in FIGS. 2 and 3, a frame 10 having a substantially inverted V-shape in side view and having an inclined surface 10a extending from the lower front to the upper rear is projecting upward at the front part of the traveling machine frame 9 of the rear body A. and this fixed frame 10
A frame 11 is provided near the front end of the frame ₁₁ , which is swingable in the front-rear direction around the first horizontal axis P1 at the lower end thereof, and which can be fixed in an inclined position after contacting the inclined surface 10a of the fixed frame 10. At the same time, a pipe frame 12 which also serves as a transmission case for the reaping section B is provided on the upper part of the swinging frame 11.
A pair of left and right brackets 1 can be freely raised and lowered around the axis X of the horizontal frame portion 12A, which is also the input axis of the
It is attached via 3 and 13. Further, a link 14 is provided on the vertical frame portion 12B of the pipe frame 12, which is swingable and fixed around the second axis _P2 at the upper part, and the free end of this link 14 is connected to the traveling machine frame 9. Hip bending link mechanism 15 between
In addition, a single-acting hydraulic cylinder 16 is interposed between the bending link mechanism 15 and the traveling machine frame 9, respectively.

Then, when pressure oil is supplied to the hydraulic cylinder 16 in a state where the fixed frame 10 and the swing frame 11 and the pipe frame 12 and the link 14 are fixedly connected, the reaping section B is moved around the axis X. and the hydraulic cylinder 1
When the pressure oil in 6 is discharged, the reaping part B descends around the axis X under its own weight.

In addition, maintenance and maintenance of the engine E, traveling transmission case M, etc., which are arranged below the rear of the reaping section B, is carried out.
During inspection, when the hydraulic cylinder 16 is operated to extend with the swing frame 11 and fixed frame 10 unlocked, the entire reaping section B moves forward around the first axis _P2 . And,
In this state, by releasing the fixation between the pipe frame 12 and the link 14, the reaping section B can be manually pulled out and moved further forward. A sufficiently wide space can be secured behind the reaping device 4, vertical conveyance device 6, etc.

Further, a first belt transmission device 2 is connected between the output shaft 17 of the engine E, the drive shaft 18 of the threshing device 1, and the input shaft 19A of the traveling transmission case M.
0, and furthermore, the traveling transmission case M
A tension clutch type second belt transmission device 22 is tensioned between the drive shaft 19B of the reaping section B and the input shaft 21 of the reaping section B.
The structure is such that the power is transmitted from this to the components of the reaping section B, such as the pulling device 3, the reaping device 4, and the vertical conveyance device 6.

Thus, the drive shaft 19B of the traveling transmission case M and the input shaft 21 of the reaping section B are brought into a state in which the distance between the shafts decreases as the reaping section B moves forward. and a tension arm that is a component of the second belt transmission device 22 and tensions and holds the transmission belt 22C stretched across the pulley 22A of the drive shaft 19B and the pulley 22B of the input shaft 21. 22D,
Attached to the traveling transmission case M,
When the reaping section B is moved forward and away, the power transmission from the drive shaft 19 of the traveling transmission case M to the input shaft 21 of the reaping section B is cut off, and at the same time, the transmission belt 22C is connected to the pulleys 22A, 22B.
It is constructed so that it can be greatly relaxed to the point where it can be easily removed.

Reference numeral 23 in FIG. 1 is a grounding body that guides the forward movement of the cutting section B, and is configured to be detachable from the grass divider 8.

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]

The drawings show an embodiment of the combine harvester according to the present invention, and FIG. 1 is a partially omitted side view, and FIGS. 2 and 3 are main parts showing the fixed connection state of the reaping section and the forward separated movement state. FIG. 4 is a partially cutaway side view showing the main part of the transmission system. A... Rear body, B... Reaping section, 1... Threshing device, 9... Traveling machine frame, 10... Fixed frame, 1
1... Swinging frame, 12... Frame, P ₁ ...
...Horizontal axis, 19... Drive shaft, 21... Input shaft, 22... Wrap transmission device.

Claims (1)

[Scope of utility model registration request] The rear fuselage A including the threshing device 1, the reaping part B placed in front of the rear fuselage A, and the lower end of the rear fuselage A are pivotally supported around the horizontal axis _P1 by the traveling machine frame 9 of the rear fuselage A, and the upper end side is rotated back and forth. A swinging frame 11 configured to be swingable, and a fixed frame 10 provided on the traveling machine frame 9 to fix the swinging frame 11 in a backward tilted position, the upper end portion of the swinging frame 11 The frame 12 of the reaping section B is pivotally supported by the rear fuselage A, and the reaping section B is configured to be able to move up and down with respect to the rear body A and to be able to move forward and away by the swinging of the swinging frame 11. This is a combine harvester in which a wrap transmission device 22 is installed across a drive shaft 19 on the side of the rear body A and an input shaft 21 on the side of the reaping section B, and the drive shaft 19 on the rear body A side and the input shaft 21 on the side of the reaping section B are connected to each other. The combine harvester is characterized in that the input shaft 21 of the input shaft 21 is arranged in such a manner that the distance between the shafts decreases as the reaping section B moves forward.