Blade structure and knife roller of double-shaft shredding machine

Abstract

The invention discloses a blade structure of a double-shaft shredding machine. The blade structure comprises a flying wheel and a plurality of blades, wherein the flying wheel comprises a flying wheel body and a plurality of ratchets; the ratchets are annularly arranged on the side wall of the flying wheel body; the number of the ratchets is equal to the number of the blades; the blades and the ratchets are detachably and correspondingly connected; the bottom surfaces of the blades are attached to the front surfaces of the ratchets; the side surfaces of the blades are matched with and attached to the side surfaces of the ratchets. The blade structure disclosed by the invention has a good crushing effect, convenience in replacement and maintenance and a simple structure. The invention also discloses a knife roller of the double-shaft shredding machine. The knife roller disclosed by the invention has high stability, convenience in maintenance and a good crushing effect.

Description

technical field [0001] The invention relates to the technical field of shredders, in particular to a blade structure and a knife roller of a biaxial shredder. Background technique [0002] Shredders are mainly used for crushing materials. The double-shaft shredder (also known as the shear shredder) is one of the shredders, which mainly reduces the size of the material through shearing, tearing and extrusion. This shredder is widely used Applied to the shredding of waste plastics, waste rubber, wood and other bulky wastes. The double-shaft shredder uses the friction force of the roller surface to bite the material into the crushing area, shear, squeeze and tear the material, and the material is squeezed or split to achieve the purpose of crushing. In order to increase the splitting effect, teeth or grooves are often made on the roll surface. [0003] Such as Figure 1-2 Shown is a schematic diagram of the cutter rolls of the biaxial shredder in the prior art. The knife ro...

AI Technical Summary

Problems solved by technology

[0004] When this kind of knife roller is used to crush tires, since the claws on the blade mainly play the role of carrying material, the number of claws is small, the shearing effect is not good, and the broken tire pieces are relatively long, even after passing through the disc sorting machine. Screening, the tire pieces that are screened out will still have a large proportion of longer lengths

Because the length of the tire piece is too long, if it is not effectively controlled within a certain size range, it will cause a relatively large load on the subsequent steel wire separator or roller machine, thereby reducing the output of subsequent equipment

In addition, during the process, the knife roller will be constantly impacted and worn, and the connection between the blade and the knife shaft is prone to instability, which will affect the crushing effect; and the integrated design of the blade is not conducive to the maintenance of the equipment

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