Oval poking wheel sieve mechanism

Abstract

The invention discloses an oval poking wheel sieve mechanism, which comprises a rack and a plurality of rotary shafts arranged on the rack side by side, wherein a poking wheel with an oval cross section shape sleeves the outer diameter of each rotary shaft; a plurality of gear rings are arranged on each poking wheel along the axial direction; the poking wheels on the adjacent rotary shafts are meshed with each other; a clearance is formed between every adjacent meshed parts. The oval poking wheel sieve mechanism can be used for uniformly sieving materials with different particle sizes and removing thicker materials; meanwhile, the poking wheel components can be disassembled conveniently, and blockage objects in dead corners can be cleared conveniently during overhauling; in addition, the mutually staggered and meshed oval gear rings play a role in rolling the materials when rotating, so that the sieving effect is improved, and the material accumulation in the dead corners is avoided.

Description

[0001] technical field [0002] The invention belongs to the technical field of mining machinery and equipment, and in particular relates to screening and grading of solid materials in industries such as ore dressing, building materials, electric power, light industry and chemical industry. Background technique [0003] At present, drum-type grid screens, reciprocating grid screens, probability screens and inertial vibrating screens are mostly used for dry classification of coal in coal mines, coal washing and thermal power plants. The drum-type grid screen has a large volume, small screening surface, high energy consumption, high noise, and backward product technology, which is inconsistent with the current national industrial policy; the reciprocating grid screen drives the classification of materials through the reciprocating motion of the screen, and the running speed of materials is slow , the screening efficiency is low; the inertial vibrating screen uses the exciting...

AI Technical Summary

Problems solved by technology

The drum-type grid screen has a large volume, small screening surface, high energy consumption, high noise, and backward product technology, which is inconsistent with the current national industrial policy; the reciprocating grid screen drives the classification of materials through the reciprocating motion of the screen, and the running speed of materials is slow , the screening efficiency is low; the inertial vibrating screen uses the exciting force generated by the vibrating motor to excite the material located on the inclined sieve plate to make the material move, and at the same time classify the material through the sieve plate full of sieve holes; the above screening equipment has a sieve Low separation efficiency, easy blockage of screen holes, high energy consumption, high screening noise, and difficult equipment maintenance, etc., and damage to supporting equipment, it can be said that the screening of materials seriously restricts the development of various departments. All the above-mentioned equipment have been used of users have these confusions

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