Combine-harvester all-round threshing and separating device

Abstract

The invention relates to a combine-harvester all-round threshing and separating device, and belongs to the technical field of agricultural harvest machinery. The device includes a threshing cylinder located in an upper concave screen and a lower concave screen which are oppositely combined, the upper concave screen is composed of an arc sieve plate and a spiral guide plate, the sieve plate is provided with sieve holes, the spiral guide plate is fixed inside the arc sieve plate, the lower concave screen is composed of arc plates, arc sieve strips and transverse plates, the arc plates are distributed at intervals in an axial direction, the arc sieve strips are distributed between adjacent arc plates at intervals, the transverse plates are fixedly connected with the arc plates and the arc sieve strips, are distributed at intervals in a circumferential direction and extend in the axial direction, the two ends of the lower concave screen are provided with an inlet and an outlet respectively; the threshing cylinder includes a rotary driving shaft, the driving shaft is fixedly connected with a group of shaft tubes through disks, the group of shaft tubes are distributed at the peripheries of the disks at intervals, the shaft tubes are fixedly connected with rasp rods of which the outer sides are provided with rasp bars through spike teeth distributed at intervals in the axial direction, and the rasp bars are distributed on the outer surfaces of the rasp rods at intervals in a spiral direction. When harvest operation is carried out, the threshing cylinder conducts 360-degree all-round threshing, the threshing and separating capability of a combine-harvester is effectively improved, and the energy consumption of the operation is reduced.

Description

technical field [0001] The invention relates to a combine harvester, in particular to a combine harvester all-around threshing and separation device, which belongs to the technical field of agricultural harvesting machinery. Background technique [0002] For a long time, the threshing angle of combine harvesters has been between 200° and 270°, because there is only grain separation between the upper end of the threshing drum and the cover plate, and there is no threshing operation, so the threshing and separation efficiency of traditional harvesters is low. With the large-scale development of the combine harvester, the feeding volume of the harvester is increasing, and it is urgent to improve the efficiency of the threshing and separation operation of the harvester as much as possible. Contents of the invention [0003] The object of the present invention is to propose a 360° threshing and separation device for a combine harvester, so as to fully exert the threshing and se...

AI Technical Summary

Problems solved by technology

[0002] For a long time, the threshing angle of combine harvesters has been between 200° and 270°, because there is only grain separation between the upper end of the threshing drum and the cover plate, and there is no threshing operation, so the threshing and separation operation efficiency of traditional harvesters is low

Images