JPH0142998Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention comprises a grain header having, for example, a reel for raking in uncut grain culms and a cutting blade, a threshing section having a handling cylinder and a grain sorting mechanism, and a grain header including the grain header. The present invention relates to an improvement in a combine harvester comprising a grain culm supply chamber and a grain culm supply chamber connected between the threshing section and the threshing section.

Conventionally, a grain culm conveying belt was installed in the grain culm supply chamber, and grain culm was fed by the belt to the front end side of a handling drum that was pivoted in the direction of movement of the aircraft. The force for taking in the culm was insufficient, and it was difficult to prevent the culm from clogging at the front end of the handling cylinder. In addition, the mechanism for preventing this is complicated, and the types of harvested crops and conditions of use are limited.

The present invention solves the above-mentioned conventional drawbacks, and has a structure in which the handling barrel of the threshing section is pivoted in the direction of movement of the machine, and a grain culm supply port is provided on one side of the front part of the handling barrel. A screw conveyor is installed in a grain supply chamber connected between the reaping section and the threshing section, and a scattering member for feeding grain into the supply port is attached to the rear end of the screw conveyor. Alternatively, the grain culm supply chamber can be made smaller and easier to configure with a cylindrical shape than a rectangular box shape such as a belt, and the screw conveyor sequentially delivers grain culms so as to be pushed out by subsequent grain culms. It can be fed more reliably than conventional chains, etc., which are hooked and fed, and the spiral structure of the screw conveyor makes it easier to unravel grain culms, so a stable amount of grain culms can be delivered from the scattering member at the rear end of the screw conveyor. Grain can be continuously fed into the threshing section, and grain culms at the rear end of the screw conveyor are forcibly removed by the scattering member. This allows for efficient delivery of grain culms to the trunk.

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, the handling barrel 5 is mounted on an axis in the direction of movement of the machine to form an axial flow type shedding structure, and the shedding teeth 19 embedded in the handling barrel 5 are arranged in a spiral shape. A straw discharge plate 20 is fixed to the rear part of the body 5, and the starting end of a straw walker 21 is made to face this part. In addition, a grain culm supply port 22 is provided on the left side of the front part of the handling barrel 5,
The rear end of the supply chamber 15 is communicated with the supply port 22, and the front end of the supply chamber 15 is communicated with the left end of the grain header 14.
The grain culms taken in through the header 6 and the cutting blade 17 are collected on the left side of the header 14, and are then fed to the threshing section 4 through the supply chamber 15.

Further, the supply chamber 15 is configured in a cylindrical shape, and a screw conveyor 23 is mounted therein, and a delivery plate 24, which is a scattering member for forcibly feeding grain culms into the supply port 22, is mounted on the screw conveyor. 23
It is attached to the rear end of the screw conveyor 23, and is configured so that the grain culms that are moved by the screw conveyor 23 are fed into the handling chamber 25 of the threshing section 4 from the supply port 22 through the delivery plate 24. It is something.

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 from the left end into the supply chamber 15 via the grain culm scraping drum 18, and the reaped grain culms are fed to the threshing section 4 by the reaped grain culm supply screw conveyor 23, where they are handled. The grains are sequentially threshed by the barrel 5 and taken out to the grain tank 7.The grain culms that have reached the rear end of the screw conveyor 23 are sent from the supply port 22 to the interior of the handling chamber 25 by the delivery plate 24 of this section. Inserted into, handling cylinder 5
The grain culm is moved by the tooth 19 in the axial direction of the grain culm and is shattered.

As is clear from the above embodiments, the present invention has a structure in which the handling barrel 5 of the threshing section 4 is mounted on an axis in the direction of movement of the machine, and a grain culm supply port 22 is opened on one side of the front part of the handling barrel 5. A screw conveyor 23 is installed in a grain supply chamber 15 connected between the reaping section 9 and the threshing section 4, and scattering members such as a delivery plate 24 for feeding grains into the supply port 22 are connected to the screw conveyor. The screw conveyor 23 is attached to the rear end of the grain culm, and the grain culm supply chamber 15 can be made smaller and easier to configure with a cylindrical shape than the conventional rectangular box shape such as a chain or belt. Because the grain culms are sent out one after another as if they are being pushed out, they can be sent out more reliably than with conventional chains, etc., which are hooked and fed.Also, the spiral structure of the screw conveyor 23 makes it easier to unravel the grain culms, so the screw conveyor 23 Rear end scattering member 2
Since a stable amount of grain culms can be continuously fed into the threshing section 4 from 4, and the grain culms at the rear end of the screw conveyor 23 are forcibly removed by the scattering member 24, an axial flow with a small take-up force can be used. Even if the handling cylinder 5 is of the type shown in FIG.

[Brief explanation of drawings]

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 plan view of the main part. 4... Threshing section, 5... Handling barrel, 9... Reaping section, 1
5...Grain culm supply chamber, 22...Grain culm supply port, 23...
... Screw conveyor, 24 ... Delivery plate (scattered member).

Claims (1)

[Scope of utility model registration request] In a structure in which the handling barrel of the threshing section is pivoted in the direction of movement of the machine, a grain culm supply port is provided on one side of the front part of the handling barrel, and a grain culm supply opening is provided in the grain culm supply chamber connected between the reaping section and the threshing section. A combine harvester, characterized in that a screw conveyor is installed therein, and a scattering member for feeding grain culms into the supply port is attached to the rear end of the screw conveyor.