Stone crushing device

Abstract

The invention discloses a stone crushing device. The stone crushing device comprises a rack, a supporting base, a runner wheel mechanism, a pressing wheel mechanism and a crushing channel, wherein thesupporting base is provided with an annular cavity; the runner wheel mechanism comprises an annular base which is rotatably connected to the inner wall of the annular cavity, a plurality of runner wheels which are distributed in the axial direction of the annular base and synchronously rotate with the annular base are connected to the inner peripheral wall of the annular base, and the runner wheels are distributed in a step shape from top to bottom; the pressing wheel mechanism comprises a rotary shaft which is rotatably connected to the center of the annular cavity, a plurality of pressing wheels which are distributed in the axial direction of the rotary shaft are connected to the rotary shaft, the outer peripheral wall of each pressing wheel is set into a conical surface with a small upper part and a large lower part, and the bottom diameter of the upper pressing wheel of the two adjacent pressing wheels is greater than the top diameter of the lower pressing wheel; and the crushingchannel is arranged between the inner walls of the runner wheels and the outer side walls of the pressing wheels and is arranged in a conical shape with a wide upper part and a narrow lower part. Whenthe stone crushing device is used for crushing stones, the stones can be extruded and the crushing efficiency is high.

Description

technical field [0001] The invention relates to the technical field of stone crushing, in particular to a stone crushing device. Background technique [0002] Stone is one of the indispensable materials in construction engineering, road construction, chemical industry and other fields. Stones are generally taken by quarry machines, and then crushed into a suitable size by crushing process before they can be used by people. The stone crushing process is generally that the stone is uniformly sent to the coarse crusher by the feeder for preliminary crushing, and then the produced coarse material is transported to the crusher by the belt conveyor, and the crusher is further crushed, and the finely crushed stone is sent to the crusher. The vibrating screen screens out stones of different specifications, and the stones that do not meet the particle size requirements are returned to the crusher for further crushing. [0003] The stone crushing device in the prior art generally us...

AI Technical Summary

Problems solved by technology

This structure rock crusher utilizes the rolling of two rollers and the gaps on the rollers to crush and feed the stones, and uses the gaps on the rollers to increase the crushing force on the stones, but the gaps on the rollers The groove spacing is large, so the crushing efficiency is low; if the crushing efficiency of the roller is to be improved, the speed of the roller must be increased, and the speed of the roller is increased, which will inevitably cause a large amount of heat to be generated by the rotating shaft of the roller at high speed. This will damage the rotating shaft of the roller, so it has to be shut down to dissipate heat after working for a period of time, so the crusher cannot meet the needs of long-term work

Furthermore, the crusher cannot squeeze and stir the stones, and the stones are not easy to enter the rollers for rolling, so the working efficiency of the stone crusher is low and cannot meet people's needs.

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