Straw crusher with long service life

Abstract

The invention discloses a straw crusher with a long service life. The crusher comprises a chassis, a rotating drum and a crushing device, wherein an annular support is arranged on the upper surface ofthe chassis; an annular slide groove is formed in the upper surface of the support; rolling wheels are arranged in the annular slide groove in a sliding manner and connected with the bottom of an external wall of the rotating drum through connecting rods; a gear ring is arranged in the middle of the external wall of the rotating drum; the gear ring is in transmission connection with a first motorarranged on the support through a chain; the crushing device comprises a rotating shaft arranged at the bottom of the rotating drum and a shock-absorbing device; cutter heads are uniformly arranged on the surface of the rotating shaft; a driven wheel is mounted at one end of the rotating shaft through a bearing support arranged on the chassis; the driven wheel is in transmission connection with asecond motor arranged on the right side of the chassis through a belt; and the shock-absorbing device is arranged at the bottom of the bearing support. The crusher is simple in structure and solves the problems that the cutter heads of the existing straw crusher are short in service life and uneasy to replace.

Description

Technical field: [0001] The invention relates to the field of straw grinders, in particular to a straw grinder with long service life. Background technique: [0002] Biomass raw materials such as crop stalks and fruit tree branches are a kind of available resources and also a kind of green energy, which can be used in incineration power generation and other fields. As the country attaches great importance to the environment, it is forbidden to burn straw in the field, so it is generally crushed before use to reduce the size, so that the subsequent transportation, pressing and other processes can be carried out normally. The straw grinder can crush corn stalks, straw, peanut seedlings, bean stalks, firewood and other combustible crop waste stalks. However, when there are too many straws in the drum, the cutter head will forcibly crush the straws. Since there is no shock absorbing device, This will greatly reduce the life of the cutter head, and it is inconvenient for the mai...

AI Technical Summary

Problems solved by technology

The straw grinder can crush corn stalks, straw, peanut seedlings, bean stalks, firewood and other combustible crop waste stalks. However, when there are too many straws in the drum, the cutter head will forcibly crush the straws. Since there is no shock absorbing device, This will greatly reduce the life of the cutter head, and it is inconvenient for the maintenance personnel to replace the cutter head due to the limitation of the drum. Facing the above problems, the present invention introduces a straw grinder with a long service life.

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