Chopping device for combined harvester of forage rape

Abstract

The invention discloses a chopping device for a combined harvester of forage rape. The chopping device comprises a supporting frame, a lower housing, an upper housing, a stationary knife combination and plate rolling chopper; the plate rolling chopper comprises a plate rolling chopper base in a hollow cylinder shape, chopper rib plates and a chopper main shaft penetrating the plate rolling chopper base in the axial direction with the two ends extending out of the chopper rib plate respectively and two moving knife supporting plate sets welded to the plate rolling chopper base, and the two ends of the chopper main shaft are fixed to side beams on the two sides of the supporting frame through pillow block bearings respectively. Blades of the chopper are distributed in a bilateral staggered mode, the distribution gaps meet a condition that when a previous moving knife edge leaves a stalk layer, a subsequent moving knife edge just enters the stalk layer, so that even load and small fluctuation of a roller spindle during working of the chopper are achieved; by means of distribution in a bilateral staggered mode, materials can be gathered to the middle for conveying, so that it is avoided that the materials are tossed and pile up on the wall surfaces of the two sides of each housing, and throwing of the materials to a material collecting box is promoted.

Description

technical field [0001] The invention belongs to the technical field of forage rapeseed combine harvesters, and in particular relates to a chopping device for forage rapeseed combine harvesters. Background technique [0002] The middle and lower reaches of the Yangtze River are the main producing areas of rape crops in my country. Rapeseed is not only an important oil crop, but its plants can also be used as green fodder and silage. The development of forage rapeseed is an important measure of the "grain to feed" policy. Double-low forage rape has strong adaptability, easy cultivation, high yield, fast growth, low cost, and good feeding effect. It is an important source of high-quality green roughage and spring and winter forage. To promote the rapid development of forage rape crops in the middle and lower reaches of the Yangtze River and promote the deep integration of agriculture, animal husbandry, planting and breeding, simple and efficient mechanized production technolo...

AI Technical Summary

Problems solved by technology

In the prior art, the chopping device of the forage rapeseed combine harvester has a small number of blades (4 pieces) and the cutting method is tangent, resulting in high speed of the chopping device, high power consumption, poor chopping performance, and poor throwing ability. Poor and other problems, the stalks are prone to congestion after heavy cutting due to untimely throwing, which reduces the cutting performance and use efficiency of the machine tools

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