Half-feeding combine harvester threshing and separating device with revolving concave grid

Abstract

The invention relates to the field of agricultural machinery, in particular to a half-feeding combine harvester threshing and separating device with a revolving concave grid, which is mainly applied to a half-feeding paddy rice combine harvester and is used for enhancing the threshing and separating capabilities, increasing the granule threshing rate, greatly lowering the blockage probability of a threshing device and increasing the production efficiency during operation of the half-feeding paddy rice combine harvester. The half-feeding combine harvester threshing and separating device mainly comprises a left wall plate, a porous plate, a right wall plate, a V-shaped belt transmission assembly, a revolving concave grid assembly and a threshing drum. The half-feeding combine harvester threshing and separating device is reasonable in structure; crops are prevented from being accumulated in the threshing device and causing blockage due to revolving motion of a concave grid surface during operation, the threshing and separating capabilities are enhanced, and adaptation to harvesting of high-yield crops in a wet environment is realized; the upper layer surface of the concave grid moves at a certain linear speed, so that combing and threshing are realized on the upper and lower layers of the crops, overhead and bent grains are combed and threshed, and the loss caused by incomplete threshing is reduced.

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...

AI Technical Summary

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

Images