Straw secondary chopping and spilling 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 straw, in particular to a crop straw secondary cutting and spraying machine. Background technique [0002] At present, the principle of cutting up and returning to the field is the same for the crop straw processing devices sold on the market and used by farmers. Using the kinetic energy generated by the high-speed rotating chopping knife shaft, the crop straw is picked up or broken, and rolled into the frame shell, and then cut by the movable knife and the upper and lower blade rows installed in the frame shell. The beating causes the long crop stalks to be chopped, and the chopped crop stalks are thrown on the field behind the machine along the inner wall of the frame shell under the action of airflow and centrifugal force. [0003] However, the crop straw shredding and returning machines used by farmers in the market and farmers have not yet reached the goal required by users. For example: the uniform...

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 achieved 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 crop straw is cut; the ground roller is easy to stick to clay and grass, etc.

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