Crusher with pre-crushing function

Abstract

The invention discloses a crusher with a pre-crushing function, and relates to the field of crushers. The crusher comprises a crushing box, wherein a feeding hopper is fixedly arranged at the top endof the crushing box; supporting legs are fixedly connected to the bottom end of the crushing box; an inner blocking cover is fixedly connected in the crushing box; a crushing cavity is formed in the inner blocking cover; a pendulum bob is rotationally connected in the crushing cavity; a driving motor is fixedly connected to the bottom end in the crushing box; the driving motor is in transmission connection with the pendulum bob; a pretreatment device is further arranged above the pendulum bob; the pretreatment device comprises a rotating disc; a connecting rod is rotationally connected betweenthe rotating disc and the pendulum bob; swing arms are fixedly connected to the two sides of the rotating disc; and the ends, far away from the rotating disc, of the swing arms are fixedly connectedwith a hammer head. According to the crusher, the crushing function can be realized by arranging the pendulum bob, and the pretreatment mechanism can move along with the pendulum bob when the pendulumbob moves so as to realize the pre-crushing work of stones, so that the working load of the pendulum bob is reduced, and the service life of the device is prolonged.

Description

technical field [0001] The invention relates to the field of crushers, in particular to a crusher with a pre-crushing function. Background technique [0002] The reason why the crusher with pre-crushing function can crush the material to a very fine particle size is that during work, the swing range of the moving cone is not limited by the kinematic motion track of the transmission mechanism, but depends on the size of the crushing force and the crushed material. The compressive strength limit of the material can compress the material layer tightly. When the crushing force is large enough to crush the smallest particle of material, the movable cone liner and the fixed cone liner can even swing and fit together at the discharge port. Maximum compression and crushing of materials. Due to this kind of working characteristics, the crusher with pre-crushing function must be full of feed materials when working, and the hopper must be filled with materials at all times to play the...

AI Technical Summary

Problems solved by technology

However, the crusher cannot perform pre-crushing, which makes the crushing difficult and the equipment damage rate is high

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