Straw secondary chopping and spreading machine

Abstract

The invention relates to a processing device for straws of crops, in particular to a straw secondary chopping and spilling machine. A machine frame is integrally in a rhombus shape. A suspension frame is connected to the top on the left side of the machine frame, and supporting legs are connected to the bottom of the machine frame. A spreader plate assembly, a chopping knife shaft assembly and a grass blocking curtain are arranged at the upper right portion of the machine frame, the bottom of the machine frame and the position in front of the supporting legs respectively. The middle of the front face and the middle of the back face of the machine frame are provided with an upper stationary knife row and a lower stationary knife row respectively from top to bottom. A transmission box assembly is located inside the portion, on one side of the suspension frame, of the machine frame. The transmission box assembly is in driving connection with a ground roller assembly through a belt. A belt wheel protection cover is arranged outside the belt, a tension device is arranged on the upper portion of the belt, one side of the ground roller assembly extends out of the lower right portion of the machine frame, and a scraping fender is arranged on the top of the ground roller assembly. The straw secondary chopping and spilling machine has the advantages that straws chopped by a combine harvester can be sucked to be chopped and spilled for the second time, evenness of spilling of the chopped straws of the crops is achieved, and the problems that stubbles are high and bottoms are not flush after the straws of the crops are cut, and grass and soil are stuck to the ground rollers easily are solved.

Description

technical field [0001] The invention belongs to a processing device for crop stalks, in particular to a crop stalk secondary chopping and spreading machine. Background technique [0002] The crop stalk processing device that the market sells and that the peasant uses now, its principle of chopping and returning to the field is all the same. Using the kinetic energy generated by the high-speed rotating chopping knife shaft, the crop stalks are picked up or interrupted, and rolled into the frame shell, and then through the connection between the moving knife and the upper and lower knife rows installed in the frame shell. Cutting and hitting make the long stalks of the crops be chopped, and the chopped crop stalks are scattered on the field behind the machine along the inner wall of the frame shell under the action of airflow and centrifugal force. [0003] Yet the crop stalk shredding and field machine that the market sells and that the peasant uses now has not yet reached t...

AI Technical Summary

Problems solved by technology

[0003] However, the crop stalks shredding and returning machines sold in the market and used by farmers have not yet reached the purpose required by users.

For example: the uniformity of scatter after crop straw is chopped; the problem of stubble height and uneven bottom after cutting crop straw; the ground roller is easy to stick to clay and grass, etc.

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