JPS6129220Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lifting device for a combine harvester.

In other words, the cutting height can be adjusted by raising and lowering the cutting section at the front of the machine, and the cutting section can also be raised even higher when going over ridges, loading the machine onto a truck, or working in wet fields. In addition, it is possible to raise and lower the vehicle reliably and easily without erroneous operation using a single operating lever, and to provide a system that can be suitably carried out.

Next, the embodiment shown in the drawings will be described.

FIG. 1 shows a side view of the entire combine harvester. A machine stand 1 is installed above both crawlers 2 on both sides of the lower part of the machine body. A frame (not shown) that spans the truck room 5 on the rear side of both crawlers 2 is pivoted so as to be rotatable about a fulcrum 02, and is supported on a frame (not shown) that spans the truck frame 5 on the front side of the crawlers 2. A second hydraulic cylinder C2 is interposed between the frame 6 and the front lower part of the machine base 1, and when the second hydraulic cylinder C2 is operated, the machine base rotates the machine base 1 around the fulcrum 02 to change the inclination. Install and configure it so that it can be used.

A shelling section A equipped with a feed chain 7 and the like is integrally installed above the machine stand 1.

B shows the entire reaping section, which includes each grass dividing board 8, each raising case 9, cutting blade 10, each conveying body, and vertical conveying chain 1.
The rear upper part of the reaping part B, which is equipped with the 1st grade, is pivoted to the front part of the shelling part A so that it can rotate about a fulcrum 01, and the transmission and support part extends from the fulcrum 01 to the front lower part. A first hydraulic cylinder C1 is provided between the frame 12 and the front part of the machine base 1.
The reaping part B is installed and configured so that it can be raised and lowered while being rotated about the fulcrum 01 by the operation of the reaping part B.

Further, a control column 13 and a side column 14 are respectively installed in front and on the side of the boarding and driving section on the right side of the reaping section B.
A single operating lever 3 that operates the control valves of both hydraulic cylinders C1 and C2 is installed above so that it can reciprocate in the same rotation direction. The first hydraulic cylinder C1 can be actuated by the back and forth movement of the cylinder, and the second hydraulic cylinder C2 can be actuated by the back and forth movement of the second half.

However, during normal combine harvester work, the first
As shown in the figure and Fig. 2, when both hydraulic cylinders C1 and C2 are contracted, the machine platform 1 is lowered to a horizontal position and the reaping section B is also lowered. In this case, operate the first hydraulic cylinder C1 by moving the operating lever 3 back and forth on the front half side as shown by arrow A, and rotate only the reaping part B around the fulcrum 01 as shown in Fig. 4. It can be adjusted by raising or lowering it.

In addition, when the machine goes over a ridge in the field or when loading the machine onto a truck, turn the control lever 3 backwards and operate it about half way.
The first hydraulic cylinder C1 operates, and only the reaping part B rises to the upper limit as shown in FIG. 4, and then,
When the operating lever 3 is turned backward and operated all the way, the second hydraulic cylinder C2 is activated and the machine base 1 rotates around the fulcrum 02 and tilts significantly as shown in Fig. 5. The reaping section B will be raised even higher, and the front part of the machine body will be raised higher, making it easier to cross over ridges and carry out loading.

When working in wet fields, the machine can be raised and operated in the same way.

Conversely, when the operating lever 3 is operated from the rear side to the front side, the reaping section B can be lowered sequentially after lowering the machine base 1.

In this way, the present invention pivots the rear lower part of the machine base equipped with the shell removal part etc. to the rear side of the crawler via a fulcrum, and also provides a structure between the front lower part of the machine base and the front side of the crawler. 2. A hydraulic cylinder is installed to pivot the rear part of the reaping part installed in front of the shelling part to the front side of the shelling part via a fulcrum, and to connect the rear part of the reaping part and the front part of the machine stand. A first hydraulic cylinder is interposed between them, and on the front half side in the same rotation direction, the first hydraulic cylinder
Since the hydraulic cylinder is configured with one operating lever rotatably installed on the rear half side so that the second hydraulic cylinder can be operated respectively, the first hydraulic cylinder is actuated by the operating lever and the conventional structure is used. Similarly, the mowing height can be adjusted while raising and lowering the reaping section, and when the second hydraulic cylinder is then actuated using the operating lever, the machine platform is raised to further raise the ascending reaping section. This allows the machine to be easily and easily adapted to moving the machine over ridges, loading onto trucks, and working in wet fields, and with a single control lever that can be operated reliably and easily without any erroneous operation. It has the advantage of being able to be raised and lowered in a convenient manner.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a side view of the combine harvester, Fig. 2 is an enlarged view of a part thereof, and Fig. 3 is a side view of the combine harvester.
The figure shows a side view of the operating lever, and FIGS. 4 and 5 each show an explanatory view of the operation. A... Shelling part, 1... Machine base, 2... Crawler,
02...Fully point, C2...Second hydraulic cylinder, 0
1... Fulcrum, B... Reaping section, C1... First hydraulic cylinder, 3... Operating lever.

Claims (1)

[Scope of utility model registration request] The rear lower part of the machine base equipped with the shelling part etc. is pivoted to the rear side of the crawler via a fulcrum, and a second hydraulic cylinder is interposed between the front lower part of the machine base and the front side of the crawler. , a rear part of the reaping part installed in front of the dehusking part is pivoted to the front side of the dehusking part via a fulcrum, and a first hydraulic cylinder is provided between the rear part of the reaping part and the front part of the machine stand. The first hydraulic cylinder is interposed therebetween, and a single operating lever is rotatably installed in a reciprocating manner so that the first hydraulic cylinder can be operated on the first half side in the same rotation direction, and the second hydraulic cylinder can be operated on the second half side in the same rotation direction. A lifting device for the fuselage of a combine harvester, which is characterized by: