JPS6145795Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has a threshing device and a threshed grain storage tank installed side by side, and at least a portion of the side wall of the tank next to the threshing device can be opened and closed from inside the tank for inspection of various devices. The purpose of the combine harvester is to: The purpose is to allow workers to easily enter and exit the tank to inspect various devices from inside the tank without causing a decrease in the strength of the tank.

Embodiments of the present invention will be described in detail below based on illustrative drawings.

As shown in FIGS. 1 and 2, a threshing device 2 that threshes grain culms while holding and conveying them rearward with a feed chain 1 installed on the left side, and sequentially sorts the threshed grains. and a threshed grain storage tank 4 to which threshed grains are sequentially supplied by a screw conveyor device 3 are mounted on a crawler traveling device 5 in a state in which they are lined up in the lateral direction of the machine body. A disk-shaped cutter 6 that shreds the waste straw after processing and releases it downward is connected to the threshing device 2. In front of the threshing device 2, the grain culms planted in the field are pulled up and harvested, and the harvested grain culms are transferred to the threshing device 2. A driver's seat 8 is provided in front of the tank 4, and as the aircraft advances, the grain culms planted in the field are harvested, the harvested grain culms are threshed, It is configured to automatically and continuously store the threshed grains in the tank 4 one after another.

A leveling screw 9 is provided in the upper part of the tank 4, and the stored grain is transferred to the lower part of the tank 4.
A spiral body 10 is provided on the rear side to carry out the tank 4.
A screw conveyor-type grain carrying device 11 for carrying the grains from the spiral body 10 out of the machine is provided on the rear side, thereby dispersing the threshed grains throughout the tank 4. The structure is such that the grains can be stored in a state where the grains are in a stable state, and the stored grains can be transferred to a transport vehicle or the like outside the machine.

In configuring the grain carrying device 11, a second carrying section 11 is disposed above the first carrying section 11A fixed at the proximal end.
B is attached so as to be rotatable around the vertical axis X as described later, and the third conveyor section 11c is attached to the upper part of the second conveyor section 11B so as to be operable to oscillate up and down using a hydraulic cylinder or the like. By rotating the second conveying section 11B, the second conveying section 11B is configured to be able to switch between a posture in which it protrudes laterally outwardly of the machine body and a retracted posture in which it is located on the side of the machine body. The structure is such that it can be switched and swung into a position that overlaps the upper part of the body.

To configure the operation structure of the second conveyance section 11B, as shown in FIG.
A rotating operation handle 13 is connected to the front end of the operating shaft 12 by a bevel gear, one end of a transmission shaft 14 is connected to the rear end of the operating shaft 12 by a bevel gear, and the other end of the transmission shaft 14 is connected to a second
It is interlocked and connected to a gear 15 fixed to the outer periphery of the conveyance section 11B.

As shown in FIGS. 2 and 3, the tank 4
A pair of upper and lower parts 4a and 4b at the lower front edge of the side wall of the threshing device are connected to the tank body with bolts so that they can be opened and closed from inside the tank 4, and then from inside the tank 4, The structure is such that various devices such as the various transmission mechanisms in the threshing device 2 and the hydraulic unit disposed at the front of the threshing device 2 can be inspected.

Rear portion 4c of the upper wall of the tank 4
is removably bolted to the tank body so that an operator can enter and exit the tank 4 from there with the rear portion 4c removed. The shaft portion 12a of the operating shaft 12, which faces the openable/closable upper wall portion 4c, is pivoted with a pin to the shaft portion supported by the tank 4 so that its front end portion can swing downward. , and the other end is removably connected by a pin 16, and the shaft portion 12
By switching the position a to a position in which it is swung downward, the operator can enter and exit the tank 4 without being obstructed by the operating shaft 12.

In carrying out the present invention, when configuring a part of the side wall of the tank 4 next to the threshing device to be openable and closable, the size and position of the part that is configured to be openable and closable can be changed in various ways, and the entire side wall It may be constructed so that it can be opened and closed.

Furthermore, when configuring a portion of the upper wall of the tank 4 to be openable and closable, the size and position of the portion that is configured to be openable and closable can be varied in various ways, and even if the entire upper wall is configured to be openable and closable. good.

Moreover, when constituting the grain carrying device 11, its conveying means and structure for changing postures can be changed in various ways.

Further, the structure in which the shaft portion 12a of the operating shaft 12 is pivotally supported in a downwardly swingable manner and the structure in which it is detachably connected can be modified in various ways. FIG. 5 shows an example of a connection structure, in which a cylindrical shaft joint 17 is provided on the shaft portion 12a and is capable of spline engagement with the shaft portion supported on the tank 4.
spline bearing that allows it to slide within a certain range,
In addition, a spring 18 is provided that urges the shaft coupling 17 toward the protruding side.

In summary, the present invention, in the above-mentioned combine harvester, is configured such that at least a portion 4c of the upper wall of the tank 4 is operable to open and close for worker access, and that the upper wall portion 4c of the operating shaft 12 is configured to be openable and closable. Opposing shaft portions 12a are provided in the tank 4 with one end pivotally supported to be swingable downward and the other end removably connected to the shaft portion of the support. It is characterized by

That is, at least a portion 4c of the upper wall on which the pressure of stored grain in the tank 4 does not act can be opened and closed for the access of workers. Compared to making it possible to open and close at least a portion of the lateral outer wall on which the pressure of the stored grain acts, the strength of the tank 4 can be maintained to a greater degree, and according to the present invention, the strength of the tank 4 can be maintained to a greater extent. The shaft portion 12a of the operation shaft 12 for the unloading device 11, which faces the openable/closable upper wall portion 4c, is pivoted so that one end thereof can swing downward relative to the shaft portion supported by the tank 4, and Since the other end is detachably connected, a worker can enter and exit the tank 4 by switching the shaft portion 12a facing the upper wall portion 4c to a position in which it is swung downward. This can be carried out well without being hindered by the operation shaft 12, and in addition, as described above, one end of the shaft portion 12a facing the upper wall portion 4c can be attached to and removed from the shaft portion supported on the tank 4. For example, compared to connecting both ends of the shaft portion 12a facing the upper wall portion 4c to the tank 4 removably to the shaft portion of the support. This makes it easier to handle the shaft portion 12a facing the upper wall portion 4c, resulting in a combine harvester that can be used more conveniently.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the combine harvester according to the present invention, and FIG. 1 is a partially cutaway plan view of the combine, FIG. 2 is a partially cutaway side view of the combine, and FIG. 3 is a cutaway of the tank mounting part. FIG. 4 is a partially omitted side view of the operating shaft mounting portion, and FIG. 5 is a cutaway side view of another embodiment. 2... Threshing device, 4... Threshed grain storage tank,
4a, 4b...Side wall portion, 4c...Top wall portion, 1
2...Operation axis, 12a...Shaft portion.

Claims (1)

[Scope of utility model registration request] A threshing device 2 and a threshed grain storage tank 4 are arranged side by side, and at least a portion 4a, 4b of the side wall of the tank 4 next to the threshing device is configured to be operable to open and close from inside the tank for inspection of various devices. This is a combine harvester in which an operating shaft 12 is installed in the upper part of the tank 4 for switching the stored grain carrying device 11 between a position in which it projects outside the machine and a storage position in which it is located on the side of the machine body. At least a portion 4c of the upper wall of the operating shaft 12 is configured to be operable to open and close for access by a worker, and a shaft portion 12a of the operating shaft 12 that faces the upper wall portion 4c that can be opened and closed.
is provided in the tank 4 with one end pivotally supported to be swingable downward and the other end removably connected to the shaft portion of the support. combine.