A threshing device for full-feed combine harvesting

Abstract

The invention relates to a threshing device for full-feed combined harvesting, which includes a machine body on which a front transverse cutting flow drum, a transition guide plate and a rear longitudinal axial flow roller are installed in sequence, and a front grid is arranged under the front transverse cutting flow roller Grid concave screen, the rear grid concave screen is installed under the rear longitudinal axial flow drum, and the swing vibrating screen is installed under the front grid concave screen and the rear grid concave screen. A fan, a primary auger and a secondary auger are installed at the bottom, and a stalk chopping device is installed behind the swinging vibrating screen; The axial centerlines of the two are on the same straight line; several punching holes are evenly arranged on the transition guide plate. The rear longitudinal axial flow drum includes a threshing gear bar and a feeding head installed at the end of the threshing gear bar. Three helical blades are arranged on the circumferential surface of the feeding head. The invention can improve conveying and threshing ability, increase feeding amount and reduce loss rate.

Description

technical field [0001] The invention relates to a full-feed combined harvesting threshing device, which belongs to the technical field of agricultural machinery. Background technique [0002] In the prior art, the threshing drums of the full-feed combine harvester are mainly vertical-mounted axial-flow drums and horizontal-mounted axial-flow drums, which have low production efficiency and large grain loss. The front cutting flow drum of the cutting and vertical flow full-feed combine harvester is horizontal, and the rear axial flow drum is vertical. The transverse center of the front cutting flow drum is offset relative to the axis of the rear axial flow drum. The screw feeding head of the rear axial flow drum adopts double leads. Compared with the single vertical axial flow full-feed combine harvester, this arrangement has a larger feeding amount, but since the transverse center of the front cutting flow drum is offset from the axis of the rear shaft drum, it is easy to pr...

AI Technical Summary

Problems solved by technology

Compared with the single vertical axial flow full-feed combine harvester, this arrangement has a larger feeding amount, but since the transverse center of the front cutting flow drum is offset from the axis of the rear shaft drum, it is easy to produce a dead angle on the offset side. The crops are piled up here, which is easy to cause blockage, and the transportation is not smooth, which affects the normal harvest

In addition, its transmission is mainly chain transmission, which has complex structure, high noise and poor reliability.

Images