Secondary threshing machine

Abstract

The invention discloses a secondary threshing machine. The secondary threshing machine comprises a rack (1), a threshing bin A (2), a threshing roller (3), a threshing bin B (4), and a filter screen (13). The secondary threshing machine is characterized in that the threshing bin B (4) is internally provided with a secondary threshing component (5), the secondary threshing component (5) comprises a twisting shaft (8), a rotating shaft (9) and threshing rods (12), fixing plates (6) are arranged at the two ends of the rotating shaft (9), the twisting shaft (8) is fixed between the two fixing plates (6), a twisting plate (7) is fixed at the end part of the twisting shaft (8) and is located at the position where the threshing bin A (2) and the threshing bin B (4) are communicated, a plurality of threshing rods (12) are fixed on the rotating shaft (9), and a blade (14) is fixed at the end part of the rotating shaft (9) and is located above a straw outlet (15). The secondary threshing machine can perform two-time threshing, has the characteristics of high threshing rate, high yield of a broken ear and a straw ear, simple structure and convenience in use, and does not lose cereals.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a secondary thresher. Background technique [0002] The thresher is a very important tool in the threshing process of crops. During the working process of the thresher, the straw ears are continuously impacted by the threshing drum to thresh the grains, and at the same time, a large number of broken ears and straw ears are left in the threshing bin, which is not easy to discharge. In addition, in the thresher process, when the existing threshers threshed crops such as broken ears and straw ears, they all threshed at one time, resulting in incomplete threshing of crops such as broken ears and straw ears, which damaged the grain and caused a large amount of food waste. Unable to meet the existing threshing demand. In the prior art, a Chinese utility model patent (ZL201420029287.6) discloses a rice and wheat motorized threshing machine. The mechanism is ...

AI Technical Summary

Problems solved by technology

In addition, in the thresher process, when the existing threshers threshed crops such as broken ears and straw ears, they all threshed at one time, resulting in incomplete threshing of crops such as broken ears and straw ears, which damaged the grain and caused a large amount of food waste. Unable to meet existing threshing needs

In the prior art, a Chinese utility model patent (ZL201420029287.6) discloses a rice and wheat motorized threshing machine. The mechanism is equipped with a weeding linkage assembly on the side of the pulley on the main shaft of the threshing drum to connect with the weeding assembly. When threshing ears, the broken ears and straw ears left in the threshing bin can be discharged at the same time, but the grains left on the broken ears and straw ears cannot be threshed twice, and the threshing effect is poor

Images