Threshing device with adjustable two-way drawing wire threshing interval and combined harvester

Abstract

The invention provides a threshing device with an adjustable two-way drawing wire threshing interval and a combined harvester. The device comprises grid strips and a tensioning mechanism, wherein a plurality of grid strips are in clearance fit with a side plate, the tensioning mechanism is installed on the multiple grid strips, and the grid strips move radially and tangentially in clearances. Thetensioning mechanism comprises tangential tensioning devices and radial tensioning devices, and one radial tensioning device is installed in the radial direction of any grid strip for enabling the grid strips to move in the radial direction in the clearances; the tangential tensioning devices are installed on the grid strips in the tangential direction in series for enabling the grid strips to move in the tangential direction in the clearances. According to the actual harvesting operation conditions, the size of the threshing clearances can be adjusted by adjusting the positions of the grid strips, the adjusting mechanism is simpler, operation is convenient and rapid, and the concave plate clearances can be easily adjusted and controlled automatically, and the problems that existing threshing clearance adjustment is difficult and the automatic degree is low are solved.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a threshing device and a combine harvester with adjustable two-way cable threshing gaps. Background technique [0002] The threshing device is one of the core components of the combine harvester. Its main function is to remove the grain grains from the stalk. The performance of threshing directly affects the working efficiency and performance of the combine harvester. The size of the gap between the concave plates is also To a certain extent, it affects the quality of grain harvest. Due to the fact that the combine harvester is in the actual operation process, the planting conditions of the grain are different and the field environment is different, which will cause the feed amount of the combine harvester to be too large or the feed amount to change suddenly, so it is easy to cause faults such as clogging of the threshing drum. The traditional solution is generally to stop...

AI Technical Summary

Problems solved by technology

[0009] Aiming at the deficiencies in the prior art, the present invention provides a threshing device and combine harvester with adjustable threshing gap of two-way pull wire, which can adjust the size of the threshing gap by adjusting the position of the grid bar according to the actual harvesting operation conditions. The adjustment mechanism is relatively simple, the operation is convenient and quick, and it is easy to realize the automatic adjustment and control of the concave plate gap, which overcomes the existing problems of difficult adjustment of the threshing gap and low degree of automation

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