Half-feed combine harvester threshing separation device with rotary concave screen

Abstract

The invention relates to the field of agricultural machinery, in particular to a semi-feeding rice combine harvester, which is mainly used in the semi-feeding rice combine harvester, so that the semi-feeding rice combine can enhance the threshing separation ability, improve the grain removal rate, and greatly reduce the occurrence of threshing devices. The semi-feeding combine harvester threshing and separating device with rotary concave plate sieve that improves the probability of clogging and improves production efficiency is mainly composed of left wall panel, perforated plate, right wall panel, V-belt transmission assembly, rotary concave plate sieve assembly and The threshing drum constitutes. The invention has a reasonable structure. Due to the rotary movement of the concave screen surface during operation, the threshing device will not accumulate crops and cause blockage, which improves the threshing separation ability and is suitable for high-yield crops and harvesting in humid environments; the upper surface of the concave screen is The movement at a certain linear speed enables the upper and lower layers of the crops to be combed and threshed, and it is also conducive to straightening and threshing the upside-down and bent ears of rice and wheat, reducing the unremoved loss.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a semi-feeding rice combine harvester, which is mainly used in the semi-feeding rice combine harvester, so that the semi-feeding rice combine can enhance the threshing separation ability, improve the grain removal rate, and greatly reduce the occurrence of threshing devices. Threshing and separating device for semi-feed combine harvester with rotary concave plate screen for blocking probability and improving production efficiency. Background technique [0002] Rice combine harvester is one of the most important operating equipment in rice harvesting machinery. The half-feed combine harvester is currently the most advanced rice harvesting machine, and its operation quality and efficiency are welcomed by farmers. However, users generally report that due to the high yield of high-yield rice, strong tillers, and well-developed stems and leaves, the existing half-feed combine ha...

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Problems solved by technology

However, users generally report that due to the high yield of high-yield rice, strong tillers, and well-developed stems and leaves, the existing half-feed combine harvesters are prone to problems such as blockage and leakage of the threshing device when harvesting, so they cannot be harvested at full capacity and affect production efficiency. The main reasons are as follows: First, the concave plate sieve of the threshing device of the half-feed combine harvester is fixed. Next, although the grains on the upper panicle of the grass are easy to be removed, the lower panicle of the grass that is in contact with the concave screen is not easy to be brushed and impacted by the bow-toothed comb, and it is easy to cause leakage; When the best harvest period is missed, the neck of the straw is prone to bending, and the bent ears cannot enter the threshing area and are discharged out of the machine with the straw, resulting in leakage loss; third, when the threshing device is blocked, it is generally necessary to stop immediately to remove it, which affects Work efficiency, serious blockage may even cause failures such as roller shaft breakage

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