A new type of straw crushing and returning machine

Abstract

The invention discloses a new type of straw crushing and returning machine, which belongs to the technical field of agricultural machinery and includes a suspension frame, a machine cover, a cutter shaft side plate, a tensioning wheel, a box assembly and a supporting foot, and the left end of the box assembly is connected to the The left two shafts are connected, the right end of the box assembly is connected with the right two shafts, the other end of the left two shafts is connected with the driving pulley, the other end of the right two shafts is connected with the driving pulley, and the driving pulley passes through the belt They are respectively connected with the driven pulleys, the driven pulleys are respectively connected with the left knife shaft and the right knife shaft, there is a support at the connection between the left knife shaft and the right knife shaft, and the throwing knives are arranged in a staggered manner on the left knife shaft and the right knife shaft , the front part of the hood is provided with a beam, the bracket and the feet are fixed on the beam, three sets of anti-missing devices are connected to the bracket through bearings, and the left two shafts and the right two shafts are respectively equipped with protective covers, which are mainly used in agricultural straw Crush and return to the field.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a novel straw crushing and returning machine. Background technique [0002] At present, the horizontal straw crushing and returning machine is the most popular and applied in China. The crushing cutter shaft is parallel to the ground and adopts a single-axis structure. The working width does not exceed 3.0m. The maximum supporting power is about 125 horsepower. . For the super-large straw crushing and returning machine above 3.0m, if the single-side transmission and single-shaft structure are still adopted, the crushing cutter shaft is not easy to process, and the straightness is not easy to guarantee. In turn, it will affect the dynamic balance of the cutter shaft with the cutter. Therefore, the present invention adopts a double-sided belt drive and a double-shaft coaxial structure. The two sides of the belt drive respectively drive the left and righ...

AI Technical Summary

Problems solved by technology

The middle support part of the biaxial structure cannot arrange crushing parts, and there are also cases of missed cutting

In view of the above reasons, the actual use effect can not fully meet the agronomic requirements

[0004] The throwing knives of the straw crushing and returning machine are usually arranged in a double helix. When the knife shaft rotates at a high speed, it is equivalent to a screw conveying device. It has the additional function of transporting the crushed straw to one side, resulting in uneven straw throwing.

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