Single-roller crusher

Abstract

The invention relates to a crushing device of sintered ore cakes in iron and steel plants, namely a single-roller crusher. The single-roller crusher comprises a rack; the rack is provided with a rotary main shaft; a plurality of tooth rollers with single teeth are ranked on the main shaft; a plurality of single teeth are uniformly distributed along the peripheries of the tooth rollers; an alloy hammer head is fixed on the top side surface of each single tooth; the main shaft is supported to bearing seats at two sides of the rack, and is driven by a driving mechanism and a speed reduction mechanism; in the drive directions of the tooth rollers, from the second tooth roller, the tooth rollers are installed by deviating from the adjacent former roller at a certain equal angle; the deviation angle is equal to the value obtained by dividing an included angle between two single teeth on the tooth rollers by the quantity of the tooth rollers. Under the premise of guaranteeing the high-temperature resistance and abrasion resistance of the device, more attention is paid to research on the service life of the device; through changing the installation angles of the ranked tooth rollers, the axial force is very uniform, the phenomenon of shaft cracking caused by nonuniform stress between the axial force and the radial force is reduced, the main shaft stress is improved, the service life of the main shaft is prolonged, and further the whole service life of the device is prolonged.

Description

[0001] technical field [0002] The invention relates to a crushing equipment for sintered cake in a steel plant, that is, a single-roller crusher. Background technique [0003] In the prior art, the single roll crusher is widely used in iron and steel, metallurgical mines and other industries, and is more suitable for crushing medium-hard coarse materials. Granularity of cooling requirements. During the 1950s, the sintering machine was matched with the HKM type and other crushers. It is an extrusion toothed roller crusher for general crushing of rocks. Its main disadvantages include low crushing efficiency, uneven particle size, and material leakage. After the 1980s, the crusher used for the sintering machine was changed to a shearing single-tooth crusher. The main feature is that the grating plate is placed at the bottom, the toothed roller is inserted into the grating plate, and the ore is sheared between the toothed roller and the grating plate. The crushing efficienc...

AI Technical Summary

Problems solved by technology

Generally, the gear rollers of the crusher are rotated at 60° between the upper stage and the lower stage, so that the shaft rotates at 30°, 90°, 150°, 210°, 270°, 330° for a long time. The six extreme points receive the greatest impact, resulting in uneven axial force, breaking the shaft, damaging the reducer, burning the motor, etc., which affect the service life of the equipment

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