JPH0441806Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a receiving net structure for a threshing machine in which a receiving net is stretched along the movement locus of the tip of the handling teeth of the handling cylinder.

[Conventional technology]

The receiving net of this type of threshing machine is prone to clogging, especially when the grain culm is damp due to rain or dew, or when threshing grains that are too large to fit in the mesh. There was no special equipment to remove stuck straw or grain.

[Problem that the invention attempts to solve]

Therefore, in the past, for example,
As disclosed in Publication No. 123061 and Publication No. 164446 of the Japanese Utility Model Publication No. 123061, a brush device for cleaning the receiving net is installed below the receiving net, or a brush is inserted from the rear dust exhaust port to remove straw, grains, etc. However, the brush had to pass through a dark, narrow space between the dust suction fan and the stroke rack, and when brushing, the handling teeth attached to the handling barrel got in the way, so I had to do whatever I wanted. However, it was difficult to reliably remove stuck straw, grains, etc.

In view of the above-mentioned circumstances, the purpose of the present invention is to provide a receiving net structure for a threshing machine that is easy and reliable to clean even if it becomes clogged, and the size of the mesh can be changed depending on the type of grain culm. It is to be.

[Means for solving problems]

In order to achieve the above object, the receiving net structure of the threshing machine according to the present invention is provided with a projecting piece that protrudes into the mesh of the receiving net and projects above the upper surface of the receiving net. The characteristic structure is that the protruding piece is configured to be movable within the mesh.

[Effect]

In other words, by moving the protrusion that penetrates into the mesh of the net and projects above the upper surface of the net, straw and grains existing in the area from the handling barrel side to the sorting section side of the net are removed. Since a pressing force can be applied to the mesh, straw, grains, etc. stuck in the mesh can be reliably removed from the mesh.

Furthermore, for example, by changing the position of the protrusions depending on the type of grain culm, etc., the size of the mesh can be adjusted.

Furthermore, since the protrusions are made to protrude above the upper surface of the receiving net, the tips of the protrusions are close to the handling teeth, so that the grain culm rides on the protrusions and the handling teeth are moved. This allows the grain culms to be sufficiently degrained during handling.

[Effect of idea]

Therefore, even if clogging occurs with straw or grains during threshing, there is no need to insert a brush into the threshing machine each time or to equip a cleaning brush in advance. It is easy, reliable, and safe with an inexpensive structure. Furthermore, it is possible to set the mesh of an appropriate size depending on the type of grain culm, moisture level, and other conditions. By providing sufficient amounts of water, it has become easier to handle them effectively.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 4 shows a schematic configuration of a threshing machine, which is equipped with a handling chamber 6 and a sorting chamber 7 below this handling chamber 6, and has a threshing effect on grain culms supplied into the handling chamber 6 by a feed chain 8. A rotary handling cylinder 1 is provided, and a receiving net 3 for passing through the processed material is stretched along the movement locus of the tip of the handling teeth 2 of the handling cylinder 1.

In addition, in the sorting room 7, there is a grain sieve 9 for shaking and sorting the waste from the receiving net 3, and an opening 10 after the receiving net 3 is transferred to the end of the handling room without passing through. Two-stage stroke racks 11, 11 that oscillate feed and sort the processed materials falling from the
A swinging sorting device A is provided which is installed and fixed between a pair of left and right swinging frames 12, 12. At the bottom of the sorting chamber 7, there is a number one collection section 13 that collects and carries out the excess number one from the grain sieve 9, and a straw rack 11 that collects the processed material that falls beyond the terminal end 9a of the grain sieve 9. A second object collecting section 14 is disposed at the front and rear for collecting fallen objects and returning them to the handling chamber 6. Further, in the sorting chamber 7 between the grain sieve 9 and the stroke rack 11 and both the collecting sections 13 and 14, there are provided a winnower 15 for blowing sorting air, a dust suction fan 16 for suctioning and discharging floating garbage, and the like.

Next, the structure of the receiving net 3 will be explained in detail based on FIGS. 1 to 3. The meshes 4 of the receiving net 3 are made somewhat larger than conventional ones,
The protrusions 5a protruding from the plurality of plate-shaped protrusions 5 are inserted into the inner frame in a state in which the protrusions 5a protrude above the upper surface of the receiving net 3, and both ends of each protrusion member 5 are integrated into the frame. It is fixedly connected to the body 17. Each of these frames 17 has a rod 19 fitted therein so as to be slidable relative to the fixed cylinder 18, and a flange 20 fixed to the free end of each rod 19 and a flange 20 fixed to the fixed cylinder 18
A spring 21 is interposed between the mesh 4 and the mesh 4 so that the protruding piece 5a inserted into the mesh 4 is elastically pressed against one side of the mesh 4. One of the frames 17 includes:
An operating lever 23 is interlocked and connected via a wire 22, and this operating lever 23 is connected to the guide frame 2.
4, it is configured to be fixed at a desired position and movable.

With the above structure, by manually moving the operating lever 23, the frame 17 moves, and all the protrusions 5a in the mesh 4 also move, making it possible to remove clogging and to remove grains. By fixing the operating lever 23 at a desired position, the mesh size of the mesh 4 can be freely changed depending on the type of culm, its wetness, and the cutting speed. In addition, the handling cylinder 1 of the protruding piece 5a
Since the side facing part is formed in a wave shape, it increases the friction with the grain culm and prevents the grain culm from spinning idle in the handling chamber 6 due to the rotational movement of the handling teeth 2. Improving work efficiency.

As a result, the need for cleaning by inserting a brush through the rear dust exhaust port is extremely reduced, and the effort of replacing the receiving net 3 according to the type of grain culm and the speed of the reaping work can also be saved.

[Alternative Example 1] In the previous example, the size of the mesh was changed manually, but depending on the cutting speed, if you want to increase efficiency, you can increase it, and if you want to decrease it, you can decrease it. It may be automatically adjusted as follows.

[Alternative Embodiment 2] During cleaning, the frame 17 may be operated periodically every predetermined period of time by interlocking an actuator that can be driven intermittently with the frame 17.

[Brief explanation of drawings]

The drawings show an embodiment of the receiving net structure of the threshing machine according to the present invention, FIG. 1 is an expanded perspective view of the receiving net, FIG. 2 is a plan view of the receiving net, and FIG. 3 is a sectional view of installing the receiving net. Fourth
The figure is a schematic cross-sectional view of a threshing machine. 1... Handling cylinder, 2... Handling teeth, 3... Receiving net, 4...
Mesh, 5a... projecting piece.

Claims (1)

[Scope of claim for utility model registration] 1. The receiving net 3 is moved along the movement trajectory of the tip of the handling tooth 2 of the handling cylinder 1.
In the receiving net structure of the threshing machine in which the receiving net 3 is stretched, a protruding piece 5a is provided which protrudes into the mesh 4 of the receiving net 3 and projects upwardly from the upper surface of the receiving net 3, and this protruding piece 5a is attached to the mesh 4 of the receiving net 3. The receiving net structure of the threshing machine is configured to be movable within 4. 2. A receiving net structure for a threshing machine according to claim 1, wherein the portion of the projecting piece 5a facing the handling barrel 1 is formed into a wave shape. 3. The receiving net structure for a threshing machine according to claim 1, wherein the means for moving the protruding piece 5a is manual. 4. The receiving net structure for a threshing machine according to claim 1, wherein the means for moving the projection piece 5a is means using an actuator.