Multifunctional straw returning machine

Abstract

The invention relates to a multifunctional straw returning machine, which comprises a machine body, traction rods and crushing knifes, wherein a gearbox is arranged in the middle of the inner side surface of the machine body; the traction rods are symmetrically arranged on both sides of the gearbox; belt pulleys are arranged at the left end of the machine body; the belt pulleys comprise a pulley aand a pulley b; the pulley a is connected with the gearbox through a rotary shaft; rotary shafts are arranged inside the machine body; both ends of the rotary shafts are respectively connected with the machine body through bearings in a rotary manner; the left end of one rotary shaft protrudes to the outside of the machine body and is fixedly connected to the pulley b in a sleeved manner; multiple groups of knife racks are arranged on the outer surface of the rotary shafts; each group of the knife racks comprises two fixing plate; two connecting holes are formed in each the fixing plate; eachthe crushing knife is positioned between the two fixing plates; a connecting bolt is arranged at the lower end of the grinding knife; a plurality of arc-shaped stoppers are uniformly arranged on theinner wall of the machine body along the length direction of the grinding knifes; and the thickness of the stoppers is the same as the linear distance between hole centers of the two connecting holeson each the fixing plate. The machine has the advantages of reasonable structure and good applicability.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and in particular relates to a multifunctional straw returning machine. Background technique [0002] Returning to the field is a measure to improve soil fertility and increase production that is generally valued in the world today. It can increase fertilizer and increase production while eliminating the air pollution caused by straw burning. Returning straw to the field can increase soil organic matter and improve soil structure. The soil is loose, the porosity is increased, the capacity is reduced, and the microbial activity and the development of the root system of the crop are promoted. The straw returning to the field has a significant effect on increasing fertilizer and production, and generally can increase production by 5% to 10%. The straw returning machine is used as a field returning machine , and it is more and more widely used in the field of agriculture; however, due to the rel...

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Problems solved by technology

[0002] Returning to the field is a measure to improve soil fertility and increase production that is generally valued in the world today. It can increase fertilizer and increase production while eliminating the air pollution caused by straw burning. Returning straw to the field can increase soil organic matter and improve soil structure. The soil is loose, the porosity is increased, the capacity is reduced, and the microbial activity and the development of the root system of the crop are promoted. The straw returning to the field has a significant effect on increasing fertilizer and production, and generally can increase production by 5% to 10%. The straw returning machine is used as a field returning machine , and it is more and more widely used in the field of agriculture; however, due to the relatively simple structure of the existing straw returning machines, the applicability is poor. Therefore, in order to solve the above problems, it is necessary to develop a multifunctional straw returning machine with reasonable structure and good applicability.

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