Worm driving rotating mechanism for threshing cylinder concave board assembly for thresher

Abstract

The invention discloses a worm driving rotating mechanism for a threshing cylinder concave board assembly for a thresher and belongs to the field of agricultural machinery. A worm wheel gear ring is fixedly installed at one end of the threshing cylinder concave board assembly, a plurality of pin shafts are evenly distributed on the worm wheel gear ring in the circumferential direction, and rolling bearings are installed at the ends, located on the same side, of the multiple pin shafts respectively. A rolling support ring base is fixedly and coaxially arranged on one side of the worm wheel gear ring, and positioned together with the worm wheel gear ring in the radial direction, the circumferential direction and the axial direction. The rolling bearings are located in an annular rolling slideway groove of the rolling support ring base. A driving worm is arranged on one side of the worm wheel gear ring and meshed with the worm wheel gear ring. By the adoption of the mechanism, rotation of the threshing cylinder concave board assembly is achieved. The mechanism is novel, simple and reasonable in structure, reliable in use, high in threshing quality and high in production efficiency.

Description

technical field [0001] The invention belongs to agricultural machinery, and mainly relates to a threshing device on a threshing machine tool. Background technique [0002] The threshing device on the threshing machine is mainly composed of two parts, the threshing cylinder shaft assembly and the threshing concave plate assembly. During operation, the threshing operation is carried out by the rotating threshing drum shaft assembly, and then with the cooperation of the fixed threshing concave plate assembly, the detached grains are separated from the separation device through the gap of the threshing concave plate assembly. Threshing and separation operations. On the threshing machines from the 1960s to the end of the century, the threshing concave plate assembly adopts an arc-shaped structure with an overall wrap angle of less than 180°, and is fixed under the threshing drum shaft assembly as a whole. The grains can only be discharged from the arc-shaped threshing concave p...

AI Technical Summary

Problems solved by technology

However, with the improvement of agricultural production capacity, the requirements for the production efficiency and production capacity of the threshing machine are getting higher and higher, and the fixed threshing cylinder concave plate assembly can no longer meet the production operation requirements. A new structure is developed. It is imminent for threshing machines to meet and adapt to production needs

Images