Bridge-crossing conveying vibrating-pressing threshing device of combine harvester

Abstract

The invention relates to a bridge-crossing conveying vibrating-pressing threshing device of a combine harvester, and belongs to the technical field of agricultural machinery. A conveying mechanism of the device is composed of an upper plant conveying vibrating-pressing belt and a lower grain conveying belt. The conveying mechanism is provided with at least one vibrating-pressing threshing cylinder; the plant conveying vibrating-pressing belt is composed of a vibrating-pressing belt which surrounds driving roller shafts at the two ends, and the vibrating-pressing belt is composed of a hollow-out adhesive tape which is provided with leakage holes and flexible vibrating-pressing plates which are uniformly distributed in the length direction of the adhesive tape at intervals. The grain conveying belt is composed of a rubber belt surrounding driving rollers at two ends and L-shaped baffles distributed in the length direction of the rubber belt at intervals; the vibrating-pressing threshing cylinder comprises a rotating roller, and connecting tooth rows extending in the radial direction are uniformly distributed on the outer circumference of the rotating roller; the outer ends of the connecting tooth rows are fixedly connected with tangential threshing plates; threshing intervals are formed between the threshing plates and the vibrating-pressing plates adjacent to the threshing plates. According to the device, the problem that an existing combine harvester cannot achieve non-destructive and efficient complete threshing of grains different in maturity degree is well solved.

Description

technical field [0001] The invention relates to a mechanism of a harvester, in particular to a bridge-transporting vibration-pressure threshing device for a combine harvester, which belongs to the technical field of agricultural machinery. Background technique [0002] According to the applicant's knowledge, after harvesting, the header at the front end of the existing combine harvester transports the harvested crops to an independent threshing chamber by crossing the bridge to complete threshing. Due to the different maturity of crops, whether it is a one-time threshing with a single vertical axial flow drum or two horizontal axial flow drums, the threshing effect can only be changed by adjusting the speed of the threshing drum and the threshing gap. The problem is: Although high speed and small gap can improve the cleaning rate, it is easy to cause damage to the mature grains. Although reducing the speed and increasing the gap can effectively avoid damage, it is difficult ...

AI Technical Summary

Problems solved by technology

Due to the different maturity of crops, whether it is a one-time threshing with a single vertical axial flow drum or two horizontal axial flow drums, the threshing effect can only be changed by adjusting the speed of the threshing drum and the threshing gap. The problem is: Although high speed and small gap can improve the cleaning rate, it is easy to cause damage to the mature grains. Although reducing the speed and increasing the gap can effectively avoid damage, it is difficult for the low-maturity grains to be separated. Stalk separation, affecting the threshing effect

Images