Adjustable speed asynchronous split straw crushing device

Abstract

The invention belongs to the field of agricultural machinery, and in particular relates to an adjustable-speed asynchronous split-cut straw crushing device, which includes a frame assembly (1), a three-point suspension device (2), a gearbox (3), a transmission assembly (4), Comb rod suppression device (5), crushing device (6), stubble cleaning device (7), speed change device (8) and crushing device assembly (9); the front and rear of the adjustable-speed asynchronous split-cut straw crushing device of the present invention The initial phase difference of the crushing knife is 170°~190°, and it is in the form of asynchronous staggered movement during operation, which can effectively reduce the length of straw after crushing and improve the crushing efficiency. The speed-adjustable asynchronous split-cut straw crushing device of the present invention is symmetrically arranged left and right, can achieve dynamic balance under working conditions, reduces machine vibration, and is equipped with a sprocket group to facilitate the replacement of different sprockets to achieve a variable speed effect.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, in particular to a speed-adjustable asynchronous counter-cutting type straw crushing device. Background technique [0002] The annual output of crop straw in my country is huge, with many types and wide distribution. As an important part of straw comprehensive utilization technology, straw returning technology has the functions of protecting the environment, improving soil, saving cost and increasing income. With the implementation of the Conservation Tillage Action Plan for Black Land in Northeast China, the application and promotion area of ​​Conservation Tillage technology has continued to expand. Straw returning technology is an integral part of Conservation Tillage technology. . [0003] At present, most of the straw shredders at home and abroad adopt the throwing knife type and the movable fixed knife supporting cutting type. Part of it is crushed at a constant speed, and the rotati...

AI Technical Summary

Problems solved by technology

However, its crank rocker mechanism has a high speed (about 834r / min) during operation, and the vibration generated by the machine tool is relatively large, the reliability is low, and the crushing speed cannot be adjusted in real time. The knife is chopping and cutting, and the theoretical chopping length is 6cm. There are problems such as high powder leakage rate and poor crushing effect.

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