a threshing device

Abstract

Provided is a threshing cylinder of a combined harvester. According to the threshing cylinder of the combined harvester, the threshing strength is selected according to needs. The threshing device comprises a feeding cylinder, amplitude plates, threshing gear lever welding assemblies, an anti-winding disc and a cylinder main shaft, wherein the feeding cylinder is installed at the foremost end of the cylinder main shaft; the cylinder main shaft penetrates through the center of the feeding cylinder; the amplitude plates are located at the front end, the middle end and the rear end of the cylinder main shaft; the cylinder main shaft penetrates through the centers of the amplitude plates. Each threshing gear lever welding assembly comprises threshing gear levers, finger-shaped teeth, cast flat teeth, rethreshing boards and gear lever connection boards. According to the specific mode of the threshing teeth installed on the threshing gear levers, the front section is welded through the cast flat teeth in a sleeved mode and the rear section is formed by welding the finger-shaped teeth on the threshing gear levers in an inserted mode. The adaptability to crops by the threshing cylinder is high, the threshing performance of the crops is improved, and cleaning losses are reduced.

Description

technical field [0001] The invention relates to a threshing device. Background technique [0002] Conventionally, Patent Document 1 discloses a threshing device mounted on a full stalk input type combine, which includes a threshing cylinder that rotates around a support shaft to feed the threshing chamber to the threshing chamber. The threshing process is carried out on the harvested grain stems. The threshing cylinder is composed of a plurality of rod-shaped members and supporting members. The posture is juxtaposed along the circumferential direction of the threshing cylinder, the support member is positioned in front and rear of the support shaft so as to support these rod-shaped members, and an internal space communicating with the threshing chamber is formed inside the threshing cylinder. . A plurality of threshing teeth are provided in parallel in the front-back direction in a posture protruding from each of the rod-shaped members to the outside of the threshing cylin...

AI Technical Summary

Problems solved by technology

[0005] The threshing cylinders mentioned in the above patent documents all have the disadvantage of poor adaptability to difficult crops.

The reason for this shortcoming is that when harvesting difficult-to-remove varieties, the front section of the drum only has threshing teeth, which cannot fully remove the grains on the straw, and the grains that are not removed until the middle and rear sections will fall into the center of the vibrating screen below. At the rear, it is discharged out of the machine without sufficient cleaning, resulting in increased cleaning losses

Images