Shredder shaft with suction

Abstract

The invention relates to a shredding cutter shaft with the air drafting effect, and belongs to crop straw processing devices. The shredding cutter shaft with the air drafting effect is composed of a bearing base, air drafting blades, a shredding cutter shaft body, a movable cutter base and a movable cutter, the bearing base is located at the two ends of the shredding cutter shaft body, the air drafting blades are evenly arranged outside the shredding cutter shaft body in a staggered mode, and the upper portion and the lower portion of the position, attached to the bearing base, of one end of the shredding cutter shaft body are provided with the movable cutter base and the movable cutter respectively. Through the technological improvement, the shredding cutter shaft has the advantages that crop straws, in particular to crop straws (rice straws) with the high shredding tenacity, are easily shredded; the movable equilibrium amount of the shredding cutter shaft is decreased, and the shredding cutter shaft is stable during high-speed rotation; vibration of a whole machine is reduced, and other components are easily protected.

Description

Technical field [0001] The invention belongs to a processing device for crop straw, in particular to a shredding knife shaft for secondary cutting and returning of crop straw to the field. Background technique [0002] The principle of cutting up and returning to the field is the same for the crop straw processing devices sold in the market and used by farmers. Using the kinetic energy generated by the high-speed rotating shredder shaft, the crop straw is picked up or broken, and rolled into the frame shell, and then the movable knife and the upper and lower blade rows installed in the frame shell Cutting and beating make the long straw of the crop chopped. The chopped crop straw is thrown on the field behind the machine along the inner wall of the frame under the action of airflow and centrifugal force. [0003] However, the crop straw shredding and returning machines used by the market and farmers have not yet reached the purpose required by the users. For example: the uniformi...

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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