Mining differential three-roller tooth crusher

Abstract

The invention discloses a mining differential three-roller tooth crusher, which comprises a front roller screen, a large tooth roller (6), a small driven tooth roller (7), a small driving tooth roller (8), a small tooth roller transmission gear (11) and a driving device, wherein the front roller screen is provided with six rollers (2) with wear-proof shaft sleeves; transmission between every two adjacent rollers (2) is realized through a roller idle wheel (3); each roller (2) is arranged according to a uniform thickness probability screening principle; materials are subjected to probability uniform-thickness screening after entering the roller screen from a feed end, a great amount of small materials are rapidly screened, and a small amount of large materials are rapidly conveyed to a three-roller crushing cavity; the three-roller crushing cavity is provided with a large crushing tooth roller and two small crushing tooth rollers; the materials are crushed through the three rollers in multiple stages under the comprehensive action of shearing, stretching and bending crushing mechanisms. The mining differential three-roller tooth crusher has the characteristics of high working efficiency, high processing capacity, high reliability, low energy consumption, no blocking, capability of avoiding excessive crushing of the materials and the like.

Description

technical field [0001] The invention relates to a gear-tooth crusher, in particular to a mine differential three-roller gear-tooth crusher. Background technique [0002] According to the crushing theory, the ratio of compressive strength to shear and tensile strength of ore rock is about 10:1. Compared with conventional crushers, it has the advantages of high crushing efficiency, low energy consumption, and large processing capacity. At present, the toothed roller crusher has been greatly developed at home and abroad, and is widely used in coal, metallurgy, chemical industry, building materials and other fields. [0003] Chinese patent CN101745442A (patent number 200810204506.9) disclosed "a gear-toothed crusher" on June 23, 2010: a fixed roller shaft and a parallel movable roller shaft located on the same horizontal plane are set, and the crushing gear teeth are staggered It is arranged on two toothed roller shafts, and the two toothed roller shafts are respectively drive...

AI Technical Summary

Problems solved by technology

Chinese patent CN203044070U (patent number 201320035193.5) disclosed "a three-toothed roller grading crusher" on July 10, 2013: its three toothed rollers are distributed up and down, and a toothed roller and a toothed plate are set on the upper part as the first stage Crushing mechanism, the lower part is equipped with a pair of toothed rollers distributed horizontally and parallel as the second-stage crushing mechanism. no breakthrough

On the basis of it, Chinese patent CN201168617Y (patent number 200720307028.5) disclosed "a gear-type grading crusher" on December 24, 2008: mainly changing the front grading and pushing mechanism to be composed of an optical axis The roller screen arranged on a single inclined surface has the same size of crushing rollers in the crushing cavity. This structure has problems such as easy accumulation of materials at the feeding end, easy wear of the rollers, low material classification and transportation efficiency, and cannot be used in mines. The principle of rock shear crushing reduces the crushing efficiency in the crushing chamber

[0006] To sum up, the prior material classification, conveying device and toothed roller crushing device of the existing gear-toothed roller crusher have certain defects in principle and structure, resulting in easy accumulation of materials at the feeding end and easy Abrasion, material classification, transportation efficiency, reduction of crushing efficiency, etc.

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