Soil-breaking mechanism capable of preventing sorting screen from blockage

Abstract

A soil-breaking mechanism capable of preventing a sorting screen from blockage comprises a plurality of parallel shafts. Two ends of each shaft are respectively provided with a bearing seat which is mounted on a frame, under a screen surface of a vibrating screen in the sorting screen. The shafts are connected with a transmission mechanism, a plurality of soil-breaking wheels are fixedly mounted on the corresponding shafts, and the number of the soil-breaking wheels mounted on each shaft is equal to that of meshes in the screen surface, corresponding to the shaft. During vibration and when the vibrating screen is at the lowest point, the upper edge of each soil-breaking wheel can penetrate each mesh. Due to the fact that the soil-breaking wheels are mounted under the screen surface of the vibrating screen to vibrate with the screen surface and the upper edges of the soil-breaking wheels can penetrate the meshes, blockage of the meshes can be effectively prevented. In case that the upper edges of the soil-breaking wheels fail to penetrate the meshes, teeth of the soil-breaking wheels can directly flap the screen surface, blockages can be loosened and broken by the aid of vibration, and accordingly clearing of the meshes is facilitated. The soil-breaking wheels can move along a guide rail back and forth, so that clearing of the meshes can be more targeted, and the problem of the blockage of the whole vibrating screen can be solved by using fewer soil-breaking wheels.

Description

Technical field [0001] The invention relates to an earth crushing mechanism, in particular to a cleaning screen anti-blocking earth crushing mechanism used on a cleaning screen and suitable for cleaning agricultural materials and mining materials. Background technique [0002] During the post-harvest cleaning process of agricultural materials, the leached materials include stalks, residual stems and leaves, immature fruits, soil blocks, broken soil, etc. The wet soil accounts for a large proportion, and the wet soil is very easy to block the sieve holes. Greatly affect the cleaning effect, so it is necessary to fully break up the wet soil to improve the cleaning effect. The same is true for mining materials. The ore is usually attached to soil and mixed with wet mud, which can easily block the screen holes. [0003] Existing cleaning screens often use better materials to make the surface of the cleaning screen, so that the stems, soil and other debris will not adhere to the cleani...

AI Technical Summary

Problems solved by technology

[0003] The existing cleaning sieves often use better materials to make the surface of the cleaning sieve, so that stalks, soil and other sundries will not adhere to the cleaning sieve to solve the problem of sieve blockage, but the effect is not good. Not ideal, and expensive, not suitable for use in rural fields

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