JPS6310660Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a combine harvester in which a harvesting frame is pivoted at the front of a thresher so that it can swing up and down, a pre-processing device that harvests and supplies grain stalks to the thresher is connected to the free end of the harvesting frame so that it can be raised and lowered, and a transmission shaft is installed inside the harvesting frame so as to drive the pre-processing device.

This type of combine harvester is extremely common, and is required to be able to perform harvesting operations while moving, such as reaping grain culms and threshing, with high operating efficiency during a short harvest period.

During the harvesting process, foreign substances such as mud and soil from traveling, grain culms and straw debris from reaping work, and rice husks and dust from threshing work adhere to various parts of the harvesting process, so frequent maintenance and inspection work such as cleaning is required. . Particularly important is the maintenance and inspection of the driving section, which is equipped with the engine and its operating system, and the movable parts of the pretreatment device located in the front, which are disposed along the travel path of the vehicle body.

Conventionally, the pre-processing device installed at the front of the machine obstructed access for workers to perform maintenance and inspection work, and the pre-processing device itself was located deep behind itself and the elevating device of the pre-processing device located behind it. There were other important problems that made it difficult to carry out frequent maintenance and inspection work on various equipment.

Therefore, as a means to solve this problem, the reaping frame is connected at the lateral side in the cutting width direction of the pre-processing device, and the pivot member of the reaping frame relative to the main machine is rotatably supported around the vertical axis. Therefore, it is conceivable to configure the pre-processing device so that it can be rotated together with the pivot member and can be selectively changed between a working position in the front of the vehicle body and a non-working position in the lateral direction away from the front side of the vehicle body. However, since the connection position of the pre-processing device and the reaping frame is located laterally away from the center of gravity of the entire pre-processing device, a large torsional moment tends to act on the reaping frame, which reduces the strength of the reaping frame. There are major issues that need to be addressed.

The present invention has been developed in view of the above-mentioned circumstances, and although it connects the reaping frame and pretreatment device with a rational structure that does not easily generate large torsional moments through simple structural changes, it The purpose of the present invention is to enable easy maintenance and inspection of the rear part of a processing device and each part located behind it within a large work space.

The characteristic structure of this invention to achieve the above purpose is as follows:
In the above-mentioned combine harvester, the present machine is constructed by mounting a threshing machine on a vehicle body equipped with a traveling drive device, and a reaping frame connected to the center or approximately the center in the cutting width direction of the pre-processing device is mounted on a board. The substrate is pivotally supported to be vertically swingable to the machine, and the board is pivotably supported to be rotatable about a vertical axis located on the side of the machine relative to the machine, so that the preprocessing device is pivoted relative to the machine. The position is configured to be selectively changeable between a working position in front of the vehicle body and a non-working position in a lateral direction outside the front side of the vehicle body, and from this configuration, the following effects can be achieved. be effective.

That is, since the reaping frame is connected at a position close to the center of gravity of the preprocessing device in the left-right direction, which is the center or approximately the center in the cutting width direction of the preprocessing device, a large torsional moment is unlikely to be generated in the reaping frame.

Instead of rotating the pivot member of the reaping frame, the reaping frame is pivoted on a board, and this board is rotatably supported around a vertical axis located on the side of the machine. , the pre-processing device and the reaping frame are rotated together with the substrate, and the pre-processing device is selectively placed in a working position in front of the vehicle body and a non-working position in the lateral direction outside the front side of the vehicle body. This allows the operator to easily access the rear of the preprocessing device and the various parts located behind it, ensuring a wide working space and facilitating maintenance and inspection.

In other words, by devising the pivot structure of the pre-processing device, the reaping frame and the pre-processing device can be connected in a rational structure that does not easily generate large torsional moments. Maintenance and inspection of various parts located behind it can now be easily performed within a large work space.

Next, embodiments of the present invention will be described in detail based on the drawings.

Vehicle body 2 equipped with a crawler-type traveling drive device 1
A frame 3 is attached to the frame 3 removably in the vertical direction, and a threshing machine 4 is attached to the frame 3.
This machine A is configured by mounting a reaping pre-processing device 5 on the frame 3, which is located in front of this machine A.
and a control section 6 is provided on the vehicle body 2, located on the lateral side of the pretreatment device 5, to constitute a combine harvester.

To configure the pretreatment device 5, a pair of left and right columns 8, 8, whose upper sides are connected by a member 7, are erected on a base plate 9, and a reaping frame 10 is attached to the connecting member 7 so as to be swingable about the left and right horizontal axes. At the same time, a bent link 13 is installed across the angle member 12 that contacts the front end of the frame 3 connected to the base plate 9 and the reaping frame 10.
and a hydraulic cylinder 14 is installed across the rear part of the support column 8 and the reaping frame 10, and a planted grain culm lifting device 15 is installed on the front side of the reaping frame 10. The threshing feed chain 1 is installed obliquely on its side, and a reaping device 16 is installed near the ground behind the pulling device 15, and the attitude of the harvested grain culm is changed to lie sideways.
A device 18a is provided to supply the pretreatment device 5 to the vehicle body 2, and a working position is set in which the pretreatment device 5 is located in front of the vehicle body 2. As shown in FIG. 2, the threshing machine 4
While the frame 3 to which the pretreatment device 5 and the pretreatment device 5 are integrally attached is lifted and supported on the ground by the jack 18,
In addition, an idling caster wheel 19 is provided on the front side of the reaping frame 10 in a grounded state, and the pretreatment device 5
From the working position, the pretreatment device 5 is alternatively rotated in the lateral direction relative to the machine A around the vertical axis P, and the pretreatment device 5 is removed from the front side of the vehicle body 2. By changing and fixing the vehicle body 2 to a non-working position in the lateral direction, the vehicle body 2 can be inserted into and removed from the threshing machine 4 and the preprocessing device 5 to the front side thereof.

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 an overall side view, and FIG. 2 is a schematic overall plan view with the preprocessing device changed in position. DESCRIPTION OF SYMBOLS 1... Traveling drive device, 2... Vehicle body, 3... Frame, 4... Threshing machine, 5... Pretreatment device, 9...
... Board, 10 ... Reaping frame, 6 ... Control section,
A... Airframe, P... Vertical axis center.

Claims (1)

[Scope of utility model registration request] A reaping frame 10 is pivotally supported at a front position of the threshing machine 4 so as to be able to swing up and down, and a pre-processing device 5 for reaping and supplying grain culms to the threshing machine 4 is connected to the free end side of the reaping frame 10 so that it can be raised and lowered freely. In addition to configuring
In a combine harvester in which a transmission shaft is installed inside the reaping frame 10 to drive the pre-processing device 5, the threshing machine 4 is mounted on a vehicle body 2 equipped with a traveling drive device 1. A reaping frame 10 connected to the center or approximately the center of the pre-processing device 5 in the cutting width direction is pivotally supported on a base plate 9 so as to be able to swing up and down, and the base plate 9 is connected to the main machine A. The pre-processing device 5 is pivoted so as to be rotatably changeable around a vertical axis P located on the lateral side of the machine, so that the position of the preprocessing device 5 with respect to the machine A can be adjusted between a working position in front of the vehicle body 2 and a working position in front of the vehicle body 2. 2. A combine harvester characterized in that the combine harvester is configured to be able to be selectively changed to a non-working position in a lateral direction away from the front side of the second harvester.