JPH044843B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a threshing device mounted on a combine harvester or a harvester, and more specifically, the present invention relates to a threshing device mounted on a combine harvester or a harvester. This invention relates to a threshing device equipped with a receiving net for sorting out grains.

[Conventional technology]

Generally, in such threshing equipment, when the stalk culms that are damp due to rain or morning dew are supplied to the threshing equipment, there is a risk that grains and straw waste after handling may adhere to the receiving net. However, no special means was provided to easily remove grains, straw debris, etc. attached to the receiving net.

[Problem that the invention seeks to solve]

As a result, grains, straw waste, etc. attached to the receiving net clog the mesh of the receiving net, making it impossible to quickly leak and discharge the single grains through the receiving net. There was an inconvenience that reduced processing efficiency.

Incidentally, although there is a method that allows the removal of grains and straw waste adhering to the receiving net through a cleaning port provided on the wall of the thresher, it is not possible to do so easily during the reaping process.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to make it possible to easily remove grains, straw waste, etc. attached to the receiving net.

[Means for solving problems]

A characteristic configuration of the present invention is that a receiving net disposed below the handling cylinder is attached to a part of the entire length of the rotating endless cable body, and as the cable body rotates, the receiving net is transferred to the handling cylinder. The present invention is configured such that the position can be freely changed between a position facing the separation unit and a position facing the sorting unit, and its functions and effects are as follows.

[Effect]

That is, by attaching a receiving net located below the handling barrel to a portion of the entire length of the rotating endless cable, it is possible to quickly leak and discharge the single grains through the receiving net. Then, as the cable-like body rotates, the receiving net from a position facing the handling cylinder is moved to a position facing the sorting section, thereby removing grains and straw waste attached to the receiving net downward under its own weight. It can be removed by falling.

〔Effect of the invention〕

Therefore, by simply changing the position of the receiving net, it was possible to easily remove grains, straw debris, etc. attached to the receiving net, so even if the work was in progress, the work could be quickly done without requiring much interruption time. It is now possible to carry out removal processing and continue work with high efficiency.

〔Example〕

Figure 3 shows a threshing device mounted on a combine harvester,
A rotary handling cylinder 2 is provided in a handling chamber A equipped with a receiving net 1 forming a lower wall, and a feed is provided which clamps and conveys the grain culm stock base with the grain culm tip inserted into the handling chamber A. A chain 3 is provided and configured to handle and process the harvested grain culms that are successively fed. A waste straw chain 4 is provided which supplies the waste straw after handling to a waste straw processing device such as a shredding cutter or a binding device.

Then, the oscillation is carried out to sort out leakage while transporting the processed material falling through the receiving net 1 and the processed material discharged through the discharge port 5 opened at the bottom of the terminal side of the handling chamber A toward the rear. A sorting section B is constructed by providing a sorting plate 6 and a winnower 7 for blowing sorting air to the sorted items falling from the sorting plate 6. At the same time, a cross section for dust removal is provided above the terminal end of the swinging sorting plate 6. A flow fan 8 is provided to collect grains into the first port 9 and second grains such as grains with branches into the second port 10, and to collect straw waste through the oscillating sorting plate 7. The structure is such that dust such as fine straw waste is sucked and discharged out of the apparatus by a cross-flow fan 8.

In the figure, 11 is a screw for horizontally feeding the first product (grain), and 12 is a screw for horizontally feeding the second product.

To describe the receiving net 1 in detail, as shown in FIG. 1 and FIG. It is attached to a part of the total length of the Then, the endless chains 13, 13 are wound around the driving chain sprocket 14 and the idle chain sprocket 15, 15, respectively, and the chains 13, 13 are wound around the walls 16a, 16b of the handling chamber A, respectively.
It is slidably provided on chain guide rails 17, 17 attached to
The position is freely changeable between a position (see FIG. 4A) and a second position facing the sorting section B (see FIG. 4B).

In addition, 18 in FIG. 2 is a support frame for supporting the central part of the receiving net 1, and the guide rail 17,
It is attached via an arm 19 attached between 17 and 17.

Then, the receiving net 1 is located at the first position to quickly leak and discharge the single grains, and
The receiving net 1 is positioned at the second position to remove grains, straw waste, etc. attached to the receiving net 1.

The receiving net 1 is changed to the second position automatically after one work stroke is completed, when the reaping section (not shown) is raised and the machine is turned to the next work stroke. It's like this.

[Another example]

To carry out the present invention, as shown in FIG. 5, a brush C that scrapes the receiving net 1 is provided, and the brush C is brought into contact with the receiving net 1 as the chains 13, 13 rotate. In some cases, grains, straw waste, etc. attached to the receiving net 1 may be removed. or,
A mechanism for applying vibration to the receiving net 1 located at the second position may be provided to further enhance the removal effect.

In the above embodiment, the receiving net 1 is rotated only in the direction of the arrow to change its position, but it may also be rotated in the opposite direction, or it can be rotated in both forward and reverse directions for a predetermined amount. It may also be rotated.

Furthermore, in the embodiment described above, the chains 13, 13 are used as the rotating endless cable-like bodies, but wires or the like may also be used.

Further, in the embodiment described above, the receiving net 1 is rotated automatically, but it may be rotated manually.
Further, the rotation may be performed, for example, during an operation when the amount of grain culm supplied is small. Alternatively, the receiving net 1 may be rotated at appropriate intervals. In that case, an appropriate time may be set depending on the degree of wetting of the grain culm.

[Brief explanation of drawings]

The drawings show an embodiment of the threshing device according to the present invention,
Fig. 1 is a longitudinal sectional front view of the threshing device, Fig. 2 is a longitudinal sectional view showing the drive structure of the receiving net, Fig. 3 is a longitudinal sectional side view of the threshing device, and Fig. 4 A and B show the moving state of the receiving net. FIG. FIG. 5 is a schematic view showing another embodiment of the mounting structure for the brush that scrapes the receiving net. 1... Receiving net, 2... Handling cylinder, 13... Rotating endless cable body, B... Sorting section.

Claims (1)

[Claims] 1. The receiving net 1 disposed below the handling drum 2 is attached to a part of the entire length of the rotatable endless cable 13, and as the rope 13 rotates, the receiving net 1 is moved to the handling trunk 2.
The threshing device is configured so that its position can be freely changed between a position facing the sorting section B and a position facing the sorting section B.