JPS64741Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cutting blade lubrication device in the reaping section of a combine harvester.

In other words, in the reaping section of a combine that has both star foils arranged side by side above the cutting blade, it is not possible to lubricate the cutting blade part in front of the star foil, which is on the grain culm passage side, with a conventional oiling hose. This is difficult because it obstructs the passage of the grain culm, and conventionally it has not been possible to automatically lubricate the cutting blade in that area.

The present invention solves this problem and allows for good automatic lubrication of the cutting blade in that area.
Furthermore, the grain culm can be conveyed and guided well, the straw culm can be prevented from getting caught on the lower side of the star foil, and the structure is simple and can be suitably implemented.

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

Figure 1 shows a side view of the combine harvester, in which a reaping section A is installed at the front of the machine body supported by both crawlers 6, a threshing section B is installed behind it, and a driving section C is installed on the right side of the reaping section A. , a paddy tank 7 and an engine section E are installed behind it, respectively, and the structure is similar to that of the conventional structure.

In addition, in the reaping section A, each raising case 9 is diagonally installed behind each front grass dividing board 8, and a reciprocating type cutting blade 1 that spans each reaping frame 10 is installed horizontally at the rear lower part of each raising case 9. In addition, there are knife holders 11a, 11b, near both ends of the cutting blade 1 and in the middle.
11c respectively, and knife holder 1 on both sides.
Oiling hoses 4, 4 extending from an oiling pump (not shown) on the upper side of the reaping part A are installed in 1a, 11b so as to communicate with each other for oiling. Two of the two star foils 2 that mesh with each other are mounted on a shaft, a lower conveyance chain 12 is provided extending rearward from the upper part of the star foil 2 on the left side, and a scraping belt 13 is provided diagonally forward from above both the star foils 2, 2. , 14 are extended respectively, and a scraping belt 15 and a guide rod 1 are installed in front between both star wheels 2, 2.
6 are installed on the left and right, and the structure is similar to the conventional structure.

A support plate 17 fixed to the rear of the reaping frame 10 is installed on the outer side of the lower part of the right star wheel 2, and a support shaft 18 is suspended from the base of the curved pipe guide rod 5 on the front side of the lower part of the star wheel 2. is pivotally supported on a support plate 17, a lubricating hose 4 is connected to the base side of the guide rod 5, and a guide rod 5 is connected to the support shaft 18.
A torque spring 19 is interposed to press forward, and when the torque spring 19 presses forward, the tip opening 3 bent at the tip of the guide rod 5 and formed downward forms the top opening of the central knife holder 11c. 20, and the guide rod 5 is installed so as to rotate downwardly of the star wheel 2 when expanded by a torque spring 19 and pushed by the grain culm.

Therefore, when the combine harvester is not working, the tip opening 3 of the guide rod 5, which is rotated forward under pressure by the narc spring 19, is in contact with the knife holder 11.
When the oil pump is driven to supply oil to the oil hose 4, the oil flowing inside the guide rod 5 falls from the tip opening 3 to the knife holder 11c and is applied to the cutting blade 1. The central part can be oiled, and the knife holders 11a and 11b on both sides, which do not interfere with the passage of the grain culm, can be oiled from the oiling hose 4 in the same manner as in the conventional type.

During work, the guide rod 5 is pushed by the grain culm that is pushed between both star foils 2, 2, and the guide rod 5 enters the lower side of the star foil 2 while rotating around the support shaft 18. As a result, the grain culm can be guided directly between the star foils 2, 2, and the straw rod can be prevented from getting caught in the lower part of the star foil 2.

In this way, in the reaping section of a combine that is constructed by arranging both star foils 2 in parallel above the cutting blade 1, the above part of the cutting blade 1 that is on the front side of the star foil 2 has a A guide rod 5 made of a pipe is connected to the lubrication hose 4 and can lubricate the mower blade 1 side from the tip opening 3, and is rotatably installed so that it can be pushed by the grain culm and rotated to the lower side of the star wheel 2. Because of this structure, when no work is being performed, the tip opening 3 can be rotated so as to face the upper side of the cutting blade 1, and the part of the cutting blade 1 that is on the passage side of the grain culm can also be well lubricated. During work, the guide rod 5 can efficiently guide the conveyance of the grain culm while rotating while being pushed by the grain culm, and the guide rod 5 can
This makes it possible to prevent the straw rod from getting caught on the lower side of the star foil 2, and has the advantage that it can be implemented suitably with a simple structure.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the combine harvester, FIG. 2 is a top view of a part of the reaping section,
Figure 3 is a side view of the main part, Figure 4 is a top view of the main part,
FIG. 5 is an operation explanatory diagram showing a part of FIG. 4. 1...Mowing blade, 2...Star foil, 4...Oil extraction hose, 3...Tip opening, 5...Guide rod, A...Reaping section.

Claims (1)

[Scope of utility model registration request] In the reaping section of the combine, which is constructed by arranging both star foils 2 in parallel above the cutting blade 1, a lubrication hose 4 is connected to the upper side of the portion of the cutting blade 1 that is on the front side of the star foil 2. A guide rod 5 made of a pipe that can be oiled from the tip opening 3 to the cutting blade 1 side is rotatably installed so that it can be pushed by the grain culm and rotated to the lower side of the star wheel 2. A mower blade lubrication device.