Dial wheel screen

Abstract

The invention discloses a dial wheel screen. The dial wheel screen comprises a rack and further comprises a motor, a speed reduction box, a first coupler, a gear case, a second coupler, a bearing block and a screen box, all of which are sequentially connected and all arranged on the rack. Screen shaft assemblies are fixed to the bearing block. The second coupler is in transmission connection with the screen shaft assemblies. The gear case comprises a gear case body and further comprises gears, long gear shafts, short gear shafts, main transmission shafts and bearings, all of which are located in the gear case body. The main transmission shafts, the long gear shafts and the short gear shafts rotate in an engaging manner. The gears are supported on the gear case body through the bearings. The long gear shafts and the short gear shafts are in key connection with the gears respectively. The screen shaft assemblies comprise shafts and a plurality of dial wheels and further comprise scraper assemblies, baffle assemblies and upper cover assemblies. The scraper assembles, the baffle assemblies and the upper cover assemblies are parallel, and the dial wheels at the corresponding positions of the adjacent screen shaft assemblies are engaged.

Description

technical field [0001] The invention relates to a dial sieve for screening and grading solid materials, and belongs to the technical field of mechanical equipment. Background technique [0002] 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 force generated by the vibrating motor to excite the material located on the inclined sieve plate to make the material move, and...

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 the 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 sieve Low separation efficiency, easy blockage of sieve holes, high energy consumption, high screening noise and difficult equipment maintenance, etc., and it is easy to cause damage to supporting equipment

Images