JPH0137394Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention includes, for example, a grain header having a reel for raking in uncut grain culms, a cutting blade, etc., a supply chamber having a reaped grain culm supply belt installed therein and connected to the header; Regarding a combine harvester that has a handling barrel and a grain sorting mechanism and a threshing section connected to the supply chamber, and performs grain harvesting work continuously, the supply chamber is configured to be expandable and retractable in the longitudinal direction of the machine body. This makes it possible to obtain an appropriate longitudinal length of the reaping section without replacing the entire supply chamber when replacing the running crawler or tires, and also enables stable running and movement by shortening the longitudinal length of the machine when traveling on roads or working on dry land. ,
Another object of the present invention is to provide a combine harvester reaping device that can reduce rear wheel load by moving the reaping part forward during work in wetlands, dramatically reduce field destruction, and improve work efficiency.

An embodiment of the present invention will be described in detail below with reference to the drawings. Fig. 1 is a side view of the whole, and Fig. 2 is a plan view of the same.
4 is a threshing section that is equipped with a handling barrel 5 and a sorting mechanism 6 and is mounted on the machine 1; 7 is a grain tank that stores grains from the threshing section 4 to be taken out via a grain lifting cylinder 8; Reference numeral 9 denotes a reaping section 1 which is installed at the front of the lower part of the threshing section 4 so as to be movable up and down via a hydraulic cylinder 10;
Reference numeral 1 denotes a driver's cab that is provided with a driver's seat 12 and a steering handle 13 and is fixedly installed in front of the upper part of the threshing section 4.

The reaping section 9 is composed of a grain header 14 for receiving uncut grain culms, and a supply chamber 15 connected to the rear center of the header 14 for feeding the reaped grain culms to the threshing section 4. The grain header 14 is equipped with a reel 16 for raking in uncut grain culms, a reciprocating cutting blade 17, and a drum 18 for raking in grain culms.

As shown in FIG. 3, a driving drum 19 and a driven drum 20 are connected to the grain inlet passage 15a of the supply chamber 15.
A reaped grain culm supply belt 21 is stretched through the belt 21, and a plurality of feeding plates 2 are installed around the outer periphery of the belt 21.
2 are erected so that the cut grain culm fed from the center of the grain header 14 is fed to the threshing section 4 by the belt 21.

In addition, the supply chamber 15 is divided into a front feeder house 23 and a rear feeder house 24 that expand and contract in the longitudinal direction of the aircraft body, and the other end of a guide rod 25, one end of which is fixed to the feeder house 23, is connected to the rear feeder house 24 by a bolt 26. Fix it removably with
The supply chamber 15 is formed to be expandable and retractable in the longitudinal direction of the machine body.

Further, tension rollers 27 and 28 are provided to meander the non-conveyance side of the supply belt 21, and the support shaft 2
A tension spring 31 is attached to a tension arm 30 that swings around a center point 9, so that the distance between the axes of each drum 19, 20 can be changed without changing the length of the belt 21 when adjusting the expansion and contraction of the supply chamber 15. be. In the figure, reference numeral 32 denotes a hydraulic cylinder for extending and contracting the front and rear feeder houses 23 and 24, and the feeder house 23 is moved forward and backward by operating the cylinder 32.

The present invention is constructed as described above, and uncut grain culms are introduced into the grain header 14 via the reel 16, and the stock base of the uncut grain culms is cut by the cutting blade 17. Reaped grain culms are fed into the supply chamber 15 from the center via the grain culm raking drum 18, and the reaped grain culms are fed to the threshing section 4 by the reaped grain culm supply belt 21, and then fed to the threshing section 4 by the handling drum 5. The grains are sequentially threshed and taken out to the grain tank 7, and the bolts 26 and hydraulic cylinders 32
By operation the front and rear feeder houses 23,
24 to lengthen the longitudinal length of the supply chamber 15, it is possible to obtain a sufficient distance between the machine base 1 and the grain header 14 when the traveling crawler 2 is installed, and also to provide a sufficient distance between the reaping section 9 and the grain header 14 during wetland work. By moving forward, the center of gravity of the machine is shifted forward, the load shared by the rear wheels 3 is reduced, and the destruction of the field by the rear wheels 3 is reduced.

On the other hand, when installing tires (not shown) in place of the traveling crawler 2, the distance between the machine base 1 and the grain header 14 can be reduced to the minimum distance required for installing the tires, and the bolts 26 can be attached and removed. By operating the hydraulic cylinder 32, the front and rear feeder houses 23 and 24 are shortened, and the supply chamber 15 is shortened.
By shortening the front-to-back length and reducing the overall length of the aircraft, this tire enables stable driving with tight turning while driving on roads or working in dry land (fields).

As is clear from the above embodiments, the present invention has a supply chamber 15 in a grain header 14 for receiving uncut grain culms.
In a combine harvester in which the threshing section 4 is connected via a By expanding and contracting, it is possible to adjust the overall length of the aircraft and adjust the longitudinal balance of the aircraft.
When reducing the overall length of the aircraft by shortening the longitudinal length of
In addition to enabling stable running with a small turning radius when driving on the road or when working on dry land, when the front-to-back length of the supply chamber 15 is lengthened to increase the weight balance ratio on the front side of the machine, or when working on wetlands, etc. It is possible to reduce the load shared by the wheels 3, dramatically reduce damage to the field caused by the rear wheels 3, and improve work efficiency, which brings about remarkable effects such as being extremely practical.

[Brief explanation of the drawing]

FIG. 1 is an overall side view showing an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a sectional side view of the main part. 4... Threshing department, 14... Grain header, 15...
...Supply room.

Claims (1)

[Scope of utility model registration request] In a combine in which a threshing section is connected to a grain header that takes in uncut grain culms via a supply chamber,
A reaping device for a combine harvester, characterized in that the supply chamber is configured to be expandable and retractable in the longitudinal direction of the machine body.