JPS6028198Y2 - Automatic catching net cleaning device for thresher - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automatic receiving net cleaning device for a threshing machine that allows straw debris etc. clogging the receiving net to be easily removed without removing the receiving net from the machine body.

The receiving net of a threshing machine is used to sort and separate the grains from the straw waste generated in the handling room, and only the grains leak into the sorting room below the handling room, but if the receiving net has a large mesh, Although the leakage action is good, the sorting action is poor, so those with a mesh size (about 9m+y+square) that allows single grains to leak are often used.

Therefore, when wet material threshing is carried out, straw waste etc. tend to adhere to the receiving net due to the moisture content and cause clogging.As a result, not only does the sorting efficiency deteriorate, but the grains are rotated around the handling room, resulting in a large amount of damaged rice. This will occur and cause problems in threshing operations.

Conventionally, when the receiving net becomes clogged, it is necessary to remove the receiving net from the aircraft body and clean it each time, which has the drawback of requiring a lot of time and effort for cleaning.

The present invention has been made to solve the above-mentioned drawbacks, and by attaching a brush body having a substantially curved outer periphery to the handling teeth of the handling barrel in a detachable manner, the brush body can be adjusted as needed. Just attach it to the treatment tooth and rotate the treatment barrel,
It is an object of the present invention to provide an automatic receiving net cleaning device for a threshing machine which can extremely easily remove straw waste etc. that clog the receiving net.

The structure of the present invention will be explained with reference to an embodiment shown in the drawings. 1 is a machine frame of a threshing machine, 2 is a handling barrel shaft mounted on the machine frame 1, and 3 is fixed to the handling barrel shaft 2. A large number of handling teeth 4 are implanted on the outer periphery of the handling cylinder 3.

5 is a top plate hinged to the machine frame 1 so as to be openable and closable, and 6 is a receiving net stretched below the handling barrel 3, forming a handling chamber 7.

8 is a dust inlet, 9 is a foot chain, and 9a is a clamping rail.

Reference numeral 10 denotes a dust sorting chamber formed in the extending direction of the handling barrel shaft 2. The dust sorting chamber 10 communicates with the outside of the machine via a suction fan lea, and sucks air from below the handling chamber 7. A sorting air passage 11 extends below the dust suction port 10'a of the fan 10a.
is formed, and a grain swinging sorting plate 12 is arranged in the sorting air passage 11.

13 is a pressure fan, 14 is a spiral conveyor attached to the first gutter 14a, 15 is a spiral conveyor attached to the second gutter 15a, and 16 is a second thrower, and the discharge port of the second thrower 16 is It faces onto the grain shaking sorting plate 12 on the side of the chamber 7.

Reference numeral 17 indicates a stroke rack, and 18 indicates a fourth port, thereby configuring an upper plate type horizontal blowing type threshing machine A.

On the other hand, 19 is a brush body, and this brush body 19 has a curved surface having the same curvature as the virtual curved surface R connecting the tips of the handling teeth 4, as shown in FIGS. 2 and 3, and has a circumference of the handling barrel 3. The bristles 1 cover the entire outer peripheral surface of the curved plate 19a having an appropriate width W in the direction.
9b is planted.

This brush body 19 includes a fixing plate 20 and bolts 21,
It can be detachably attached to the handling tooth 4.4 via the nut 21a.

19' and 20' are bolt insertion holes. Next, the operation of the present invention constructed as described above will be explained.

Now, the culm supplied to threshing machine A is fed to the foot chain 9.
In the process of passing through the handling port of the handling chamber 7 with the base of the stock being clamped between the handle and the clamping rails 9a, the grain is threshed by the rotation of the handling cylinder 3.

The threshed grains leak through the mesh of the receiving net 6 and fall onto the grain oscillating sorting plate 12, and the straw waste etc. generated in the handling room 7 mainly pass through the dust port 8 and fall onto the oscillating sorting plate 12. The grains are allowed to fall onto the sorting plate 12, and these fallen particles are uniformly dispersed and stratified in the transport process by the back and forth rocking movement of the grain shaking sorting plate 12.
The grains leak through the fine grain sorting leakage net 12a and flow down into the first valley gutter 14a, and are carried out of the machine by the spiral conveyor 14, and the ear cut culm and husks remaining on the fine grain sorting leakage net 12a are transported out of the machine by the spiral conveyor 14. Secondary materials such as straw waste are air sorted by the pressure air from the pressure fan 13 blown through the sorting air path 11 and the suction air from the suction fan 10a.
The straw waste is discharged to the outside of the machine through a dust sorting chamber 10.

On the other hand, after the ears, cut culms, etc. flow down into the second valley gutter 15a, they are returned to the grain swinging sorting plate 12 from the discharge port of the second thrower 16 and are sorted again.

The above-mentioned sorting action is performed repeatedly.

On the other hand, if the receiving net 6 becomes clogged during the threshing operation, the operation of the threshing machine A is stopped, the top plate 5 is opened, and the brush body 19 is attached to the handling teeth 4 of the handling barrel 3. do.

In this case, the brush body 19 is easily and firmly fixed to the handling barrel 3 by applying the fixing plate 20 from the outside of the handling teeth 4, inserting the bolts 21 into the bolt insertion holes 20' and 19', and tightening them.

When the handling cylinder 3 is rotated in this state, the brush body 1
Since the brush body 9 rotates integrally with the handling cylinder 3 without rubbing the inner circumferential surface of the receiving net 6, the brush body 19 removes straw waste, etc. that has adhered to the receiving net 6 and caused clogging. It is peeled off from the receiving net 6, raised to the upper part of the handling chamber 7, and discharged from the machine through the open upper end (see Fig. 2).

As described above, by simply rotating the handling cylinder 3 idly, the receiving net 6 is instantly cleaned by the brush body 19 and clogging is automatically removed.

After cleaning the receiving net 6, the brush body 19 is removed from the handling teeth 4, the top plate 5 is closed, and the threshing operation can be started immediately.

If the structure is such that the brush body 19 is attached directly to the handling barrel 3 itself, a portion of the attachment portion will remain on the handling barrel 3 during normal threshing work (when the brush body is removed), and the attachment portion will be removed from the handling barrel 3. This can cause straw debris to get caught, but in this invention, the brush body 1
9 is tightened and fixed to the handling tooth 4 itself via the fixing plate 20 and the bolt 21, there is no need to provide a separate brush body attachment part on the handling barrel 3, and therefore the above-mentioned straw waste etc. cannot be caught. There is no such inconvenience, the structure is simple, and the brush body 19 can be attached and detached very easily.

The present invention can be adopted for both high-class and low-class threshing machines, but in the case of a high-class threshing machine as in this embodiment, the grain culms passing through the handling chamber 7 can be used to reach the receiving net 6. Since the action of sweeping out the attached straw waste etc. is not carried out, the receiving net 6 is likely to become clogged, and therefore the present invention has great practical credibility.

As described above, in the present invention, a brush body having a substantially curved outer periphery is detachably attached to the handling teeth of the handling cylinder, and the rotation of the handling cylinder causes the brush body to slide against the receiving net. Since it is configured to be able to be cleaned automatically, if the catch net becomes clogged during threshing, there is no need to remove the catch net from the machine each time and clean it manually. As a result, by simply attaching the brush body to the handling teeth and rotating the handling barrel, it is possible to automatically and easily remove straw debris, etc. attached to the receiving net, and at the same time, quickly discharge it to the outside of the machine. As a result, significant labor and time savings can be achieved, and the receiving net can be kept free of clogging at all times, increasing threshing efficiency and preventing the occurrence of damaged rice and moisture build-up due to the rotation of grains in the handling chamber. It is possible to prevent as much as possible the occurrence of rust inside the handling chamber due to the adhesion of a large amount of straw waste, etc., and there is no need to separately provide a mounting part for the brush body on the handling barrel itself, so the mounting part does not interfere with threshing work. Although it has a simple structure and has no problems causing problems, it has extremely useful practical effects.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a longitudinal cross-sectional side view of a threshing machine equipped with the present invention, Fig. 2 is an explanatory diagram of the operation, and Fig. 3 is an exploded perspective view of the main parts. be. In the figure, 3 is the handling cylinder and brush body. 4 is the handling tooth, 6 is the receiving net, 19 is

Claims (1)

[Scope of utility model registration request] A brush body having a substantially curved outer periphery is detachably attached to the handling teeth of the handling cylinder, and the brush body is slid against the receiving net by rotation of the handling cylinder to automatically clean the receiving net. An automatic receiving net cleaning device for a threshing machine, which is characterized by: