Threshing cylinder with adjustable threshing diameter, adjusting method and combine harvester

Abstract

The invention provides a threshing cylinder with an adjustable threshing diameter, an adjusting method and a combine harvester. The threshing cylinder comprises a threshing cylinder, a diameter adjusting device and a driving device, wherein the diameter adjusting device is positioned on inner sides of a front support amplitude disc and a rear support amplitude disc of the threshing cylinder; and the driving device is used for conducting power to the diameter adjusting device. The threshing diameter of the threshing cylinder can be steplessly adjusted through the diameter adjusting device, meanwhile, the adjusted diameter of the threshing cylinder can be locked by the driving device, and thus operation stability of the threshing cylinder can be ensured. By adopting the threshing cylinder, the cylinder threshing diameter of the combine harvester can be conveniently and rapidly adjusted in real time, the threshing linear velocity and the threshing interval of the threshing cylinder can beadjusted according to harvesting situations, and the threshing adaptability of the combine harvester can be improved.

Description

technical field [0001] The invention relates to the technical field of harvesting machinery, in particular to a combine harvester for harvesting cereal crops, especially a threshing drum with adjustable threshing diameter, an adjustment method and the combine harvester. Background technique [0002] The threshing drum is the core component of the combine harvester threshing device, together with the concave screen, it plays the role of threshing the plants. Among them, the threshing gap of the threshing device is an important factor affecting the working quality of the combine harvester. In the actual harvesting process, the operating conditions of the combine harvester will change in real time. If the operating parameters of the threshing device are not adjusted with the change of operating conditions, it will seriously affect the combine Harvester performance. Most of the existing ways to change the threshing gap are to adjust the distance between the concave plate screen...

AI Technical Summary

Problems solved by technology

Among them, the threshing gap of the threshing device is an important factor affecting the working quality of the combine harvester. In the actual harvesting process, the operating conditions of the combine harvester will change in real time. If the operating parameters of the threshing device are not adjusted with the change of operating conditions, it will seriously affect the combine Harvester performance

Most of the existing ways to change the threshing gap are to adjust the distance between the concave plate screen and the threshing drum, and then change the entire threshing gap. The second is that only changing the threshing gap can not change the linear speed of the threshing element, which does not greatly improve the threshing adaptability of the combine harvester.

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