Protection disc for hammer crusher

Abstract

The invention discloses a protection disc for a hammer crusher, and aims to solve the problems in the prior art that bolt connection between a hammer shaft and a protection disc body is easily loosened; and dust can be easily accumulated on the protection disc body and can enter a gap between the protection disc body and a liner plate to abrade inside parts. A round hole for a main shaft to penetrate through is formed in the circle center part of the protection disc body; a plurality of hammer holes are uniformly formed in the protection disc body around the circle center; the edge of each hammer hole extends along the axial direction of the hammer hole and is provided with a snap ring; two clamping grooves are formed in each snap ring, and are located on the same diameter direction of the snap ring; welding grooves which extend outwards are formed in every two clamping grooves and are in the outer sides of the corresponding snap ring; the outer circle surface of the protection disc body is an oblique surface; and the oblique surface inclines toward the gravity center direction of the hammer shaft. By adopting the protection disc body disclosed by the invention, the connection between the hammer shaft and the protection disc body is more stable; loosening does not happen; and dust falling onto the protection body slides toward the inner layer of a rotor, and cannot enter the gap between the protection disc body and the liner plate to abrade the inside parts.

Description

technical field [0001] The invention belongs to the field of crushers, and in particular relates to a protection plate of a hammer crusher. Background technique [0002] The hammer crusher is a crusher for crushing materials with a maximum particle size of 600-1800 mm to 25 mm or less. The hammer crusher is suitable for crushing medium-hard materials in industrial sectors such as cement, chemical industry, electric power, and metallurgy, such as secondary and fine crushing of limestone, slag, coke, coal, etc. The hammer crusher mainly relies on impact energy to complete the crushing operation of materials. When the hammer crusher is working, the motor drives the rotor to rotate at a high speed, and the material enters the crusher chamber evenly. The high-speed rotating hammer head rushes towards the baffle plate and the sieve bar in the frame, and the material larger than the sieve hole size is retained on the sieve plate and continues to be hit and ground by the hammer un...

AI Technical Summary

Problems solved by technology

[0004] The present invention intends to provide a protection plate of a hammer crusher to solve the problem that the bolts of the hammer shaft and the protection plate are easily loosened, and the dust is easy to accumulate from the protection plate and enter the gap between the protection plate and the liner, and wear the internal parts.

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