Straw cutting and discharging device of straw smashing and returning machine

By optimizing the straw cutting path through the adjustable feeding plate and fixed blade structure, the problem of unstable cutting in existing devices is solved, achieving efficient crushing and uniform distribution, and improving the adaptability and reliability of the straw returning machine.

CN224267475UActive Publication Date: 2026-05-26HAIAN HONGZE MASCH MFG CO LTD
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Patent Information

Application Number
CN202521409751.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-07
Publication Date
2026-05-26
Estimated Expiration
2035-07-07

AI Technical Summary

Technical Problem

Existing straw cutting and discharging devices cannot flexibly adjust the feeding plate and fixed blades, resulting in unstable cutting effects, easy clogging or incomplete cutting, and low crushing efficiency.

Method used

An adjustable straw feeding plate and fixed blade structure was designed. The position and angle of the straw feeding plate and fixed blade are fixed by locking components. The position of the straw feeding plate and the arrangement of the fixed blade are optimized. Combined with the spiral arrangement of the moving blade assembly, the straw can be cut evenly and crushed efficiently.

Benefits of technology

It improves the efficiency of straw cutting and crushing, reduces the possibility of clogging, ensures the reliability and service life of the equipment, improves soil structure, and promotes crop growth.

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Abstract

The utility model relates to a straw cutting and discharging device of a straw smashing and returning machine, which comprises a shell provided with a feeding end and a discharging end; the fixed cutter group comprises a grass feeding plate, a fixed cutter blade and a fixed cutter blade shaft, and the grass feeding plate is arranged at the feeding end of the shell; adjusting plates are installed at the two ends of the grass feeding plate, the adjusting plates abut against the inner walls of the side plates and can longitudinally move along the side plates, and first locking pieces used for preventing the adjusting plates from longitudinally moving are arranged between the adjusting plates and the side plates. A strip-shaped hole matched with the fixed blade is formed in the grass feeding plate, and the fixed blade penetrates through the strip-shaped hole and extends upwards; the two ends of the fixed blade shaft penetrate through an adjusting plate and are rotationally connected with the side plates, and second locking pieces used for preventing the fixed blade shaft from rotating are arranged among the side plates, the adjusting plate and the fixed blade shaft. Due to the adjustable function of the straw feeding plate and the fixed blade, the cutting efficiency, the adaptability and the reliability of the straw smashing and returning machine are remarkably improved.
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