Sieve plate mechanism of hammer crusher

Abstract

The invention discloses a sieve plate mechanism of a hammer crusher and relates to the technical field of mine machines. The sieve plate mechanism specifically comprises a fixed sieve plate. A movable sieve plate is arranged at the bottom of the fixed sieve plate. The movable sieve plate is in sliding connection with sliding grooves formed in a box body. Secondary sieve holes located on the same axis with primary sieve holes are formed in the movable sieve plate. Push-pull devices are arranged on the movable sieve plate and comprise handles, screw rods connected with the handles and sleeves arranged on the movable sieve plate. The screw rods penetrate the box body, and the ends of the screw rods are located in the sleeves. Clamping plates are arranged at the ends of the screw rods, and the size of the clamping plates is larger than the size of open holes of the sleeves. According to the sieve plate mechanism, the upper sieve plate and the lower sieve plate are staggered in position, the sieve holes with different sizes are obtained, and therefore products of different specifications are produced; and when the sieve holes are blocked by materials, the primary sieve holes coincide with the secondary sieve holes, and therefore blockages can be removed in time.

Description

technical field [0001] The invention relates to the technical field of mining machinery, in particular to a sieve plate mechanism of a hammer crusher. Background technique [0002] The hammer crusher is composed of box body, rotor, hammer head, grating, fixed sieve plate, etc. The hammer head of the crusher is hinged with the disc on the central shaft. When working, the motor drives the central shaft to rotate at high speed. Driven by the disc, a greater impact kinetic energy is obtained. Blocky materials (such as limestone, coal or other brittle materials) fall through the feed port and enter the working area of ​​the hammer crusher, where the materials are impacted by the high-speed rotating hammer for primary crushing; the crushed materials are simultaneously released from the The hammer head obtains kinetic energy, rushes to the grating and lining plate of the crusher at high speed and collides with it and is crushed (secondary crushing); the secondary crushed material ...

AI Technical Summary

Problems solved by technology

[0004] The present invention intends to provide a sieve plate mechanism of a hammer crusher to solve the problem in the prior art that the hammer crusher can only produce products of one specification, and the materials are easily stuck on the sieve plate and are difficult to clean

Images