Adjusting device and adjusting method for cereal threshing cylinder concave clearance

Abstract

The invention relates to an automatic adjusting device and method for a cereal threshing cylinder concave clearance. The automatic adjusting device includes a top cover, a threshing cylinder, a concave sieve, a driving motor, a rack, a stress acquisition module, and a signal receiving and processing system. Detection and data analysis is performed on stress applied to a threshing toothed bar, a feedback signal is sent to the driving motor, and then automatic adjustment of the threshing cylinder concave clearance can be achieved. The adjusting device and adjusting method can be used for detection of stress applied to the threshing toothed bar of a threshing separating device and self-adaptive adjustment of the concave clearance while a combined harvester performs field harvesting; a detection device is low in production cost, and is easy to install and demount; the intelligent level of the detection method and result processing is high; and harvesting of various crops can be achieved by adjusting parameters of the signal receiving and processing system.

Description

technical field [0001] The invention relates to an automatic adjustment device and adjustment method for the gap between the concave plates of a grain threshing cylinder. Specifically, the automatic adjustment of the gap between the concave plates can be realized through the feedback signal generated by the stress collection and processing of the threshing teeth to drive the motor to work. Background technique [0002] The threshing and separating device is one of the core working parts of the combine harvester, which determines the performance of the whole machine. The traditional threshing device mainly includes a threshing drum, a concave screen and a top cover. When the combine harvester is working, the crops are fed into the threshing device through the conveying trough, and under the high-speed impact of the threshing drum, they rub and collide with the concave screen to achieve threshing. At the same time, they make an approximate spiral motion along the concave scr...

AI Technical Summary

Problems solved by technology

In the key follow-up assessment in 2000, the average trouble-free working time of three representative self-propelled combine harvesters was only 19.1 hours, which was far lower than the level of 50-80 hours in foreign countries, which has seriously restricted the national rice combine harvesting. machine development

This and the traditional threshing device can manually adjust the concave plate gap, but in the working process, the threshing gap (concave plate gap) is fixed, and cannot automatically adjust the concave plate gap according to the real-time working load. Not reach the purpose of preventing clogging, improving work reliability and work efficiency

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