JP2595393Y2 - Combine harvester structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a combine harvester mounted in front of a crawler and a threshing unit.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 2 , a mowing portion A is provided by a lateral mowing input case 1 pivotally supported in front of a threshing portion B.
In a combine constructed so as to be able to transmit power as a whole, the front part 2a of the crawler 2 only slightly extends forward from below the cutting input case 1, which is the rotation fulcrum O of the cutting part A, as indicated by L1. A drive case 7a that can be transmitted to the blade 4, the scraping wheel 6, and the raising case 3 and that is operatively connected to the cutting input case 1 through a transmission case 8a is far behind the cutting blade 4 and is located in front of the crawler 2. It was structured so as to be placed in front of 2a. In addition, 51
As disclosed in JP-A-42250, Japanese Utility Model Application Laid-Open No. 51-6046, etc., there has been proposed a technique of driving a scraping device or a cutting blade device by a shaft suspended from an upper conveying device. The mowing part and the crawler could not be approached due to the presence of the transmission shaft and the transmission case provided in the front. Furthermore, the actual opening 57-69541
As shown in the official gazette, a claw is
There is a large transmission case cylinder in front of the
And the crawler could not be approached.

[0003]

Therefore, the contact length of the crawler is short, the length from the front of the crawler to the front of the mowing part is long, the front-rear balance of the body is poor, and the wet field traveling performance is poor. In addition, the turning radius of the airframe becomes large, resulting in poor mobility and workability.

[0004]

SUMMARY OF THE INVENTION The present invention has been devised so as to solve such a problem and to be suitably implemented. Therefore, the crawler of the crawler is provided below a cutting input case which is a pivot of the cutting unit. The front part is greatly extended forward, and the rear part of the mowing frame that supports the cutting blade that is erected at the lower rear part of the case is brought close to the rear of the cutting blade, and the front part of the crawler is positioned forward. A drive case for transmitting to a cutting blade or a scraping wheel is provided so as to stand above a rear portion of the cutting frame, and the drive case includes
Linking the transmission case vertically suspended from the upper rear of the case
It is configured as follows.

[0005]

Therefore, the ground contact length of the crawler is longer than that of the conventional type, and the length from the front part of the crawler to the front part of the mowing part is shorter than that of the conventional type. The running performance can be further improved, and the turning radius of the aircraft can be reduced, so that the mobility and workability can be further improved.

[0006]

FIG. 1 shows a first embodiment, in which a threshing unit B is mounted on a body supported by both crawlers 2 and
0, a rear portion of the reaping section A in which the raising cases 3, the cutting blades 4, the scraping wheels 6, the vertical transporters 11, the upper transporters 12, and the like are provided. The reaping input case 1 is integrally provided, and the reaping input case 1 is rotatably supported on the upper part of the bracket 14 in front of the threshing unit B so as to have the same structure as the conventional type. The front part 2a of the crawler 2 from below the mowing input case 1, which is a dynamic fulcrum O, is longer than the conventional type by L2.
The rear portion 5a of the cutting frame 5 which extends forward by the length of the cutting blade 4 and supports the cutting blade 4 provided laterally at the lower rear of the case 3 is moved closer to the rear of the cutting blade 4, and the front portion of the crawler 2 is moved forward. 2a, which is positioned in front of the cutting frame 6 and has a narrow driving case 7 for transmitting to the scraping wheel 6 and the cutting blade 4 so as to rise above the rear portion 5a of the cutting frame 5, and The case part 7 has the raised case 3
Linked to the transmission case 9 vertically installed from behind the upper part
I do.

That is, the upper part of the transmission case 9 extending upward from the drive case part 7 is raised and is operatively connected to the drive case 17 so that the cutting input case 1 and the rear part 5 of the cutting frame 5 are moved.
The hydraulic cylinder 15 is connected to a supporting rod 19 interposed between the hydraulic cylinder 15 and the supporting rod 19.

Therefore, the claw is moved from the pivot point of the mowing part.
There is a large transmission case tube etc. over the lower front of the la
Because it does not, the contact length of the crawler 2 is longer than the conventional form
In this case , the length from the front part 2a of the crawler 2 to the front part of the mowing part A is shorter than that of the conventional type, so that the front-rear balance of the body is improved, and the wetland traveling performance can be further improved. Further, the turning radius of the fuselage can be reduced, so that the mobility and workability can be further improved.

[0009]

[Effect of the Invention] Thus, the present invention is configured as described above.
As a result, the lower part of the front of the crawler is
As a result, a large transmission case cylinder or the like can be eliminated, and the front portion 2a of the crawler 2 can be extended forward from the conventional type so that the ground contact length of the crawler 2 can be longer than that of the conventional type. The length from 2a to the front part of the mowing part A can be made shorter than the conventional type, so that the front-rear balance of the body can be improved and the wetland traveling performance can be further improved, and In addition, since the turning radius of the body can be reduced, the mobility and workability can be further improved.

[Brief description of the drawings]

FIG. 1 is a side view schematically showing a main part according to a first embodiment.

FIG. 2 is a side view showing a conventional example.

[Explanation of symbols]

 Reference Signs List A cutting section B threshing section 1 cutting input case O rotation fulcrum 2 crawler 2a front section 3 raising case 4 cutting blade 5 cutting frame 6 raking wheel 5a rear section 7 driving case section 8 transmission case 9 transmission case

Claims (1)

(57) [Scope of request for utility model registration] 1. A combine harvester which is configured to be able to transmit to a whole reaping unit A from a lateral reaping input case 1 pivotally supported in front of a threshing unit B. 1, a front portion 2a of the crawler 2 is extended greatly forward, and a rear portion 5a of a cutting frame 5 supporting a cutting blade 4 provided at a lower rear portion of a rearward of the case 3 is brought closer to the rear of the cutting blade 4. Together with the front part 2 of the crawler 2
a by positioning the front and lateral bridging, equipped with a drive case portion 7 for transmission to the cutter blade 4 and take-wheel 6 so as to stand above the rear 5a of the cutting frame 5, the drive case
The part 7 is vertically suspended from the upper rear of the raising case 3.
A mowing part structure, wherein the transmission case 9 is interlocked and connected .