Coal mine crushing device

Abstract

The invention discloses a coal mine crushing device. The coal mine crushing device comprises a crusher body, wherein a plurality of supporting legs are fixedly connected to the bottom of the crusher body, an anti-skid base is fixedly connected to the bottoms of the supporting legs, a crushing chamber is fixedly arranged on the crusher body, a driving motor is fixedly installed on the outer wall of the crushing chamber, a static jaw plate is fixedly installed inside the crushing chamber, a feeding port is formed in the crushing chamber, the feeding port is located at the upper end of the static jaw plate, a plurality of fixed teeth are fixedly installed on the static jaw plate, and a movable jaw plate is installed at the output end of the driving motor. Compared with the prior art, the coal mine crushing device has the advantages that extrusion can be generated between a grinding wheel and ore, and pressure can be generated on a crushing block, so that the crushing block extrudes a reset spring to contract inwards; and rigid collision between the grinding wheel and the ore can be reduced, meanwhile, the grinding wheel can rotate on a rotating shaft, so that loss of movable teeth in the ore crushing process can be reduced, and the service life of the crusher can be prolonged.

Description

technical field [0001] The invention relates to the technical field of coal mine mining, in particular to a coal mine crushing device. Background technique [0002] With people's demand for resources, the coal industry has been vigorously developed, and the resulting coal machinery has also developed rapidly. As a kind of coal machinery, coal crushers play an important role in coal crushing. Coal crushers are mainly used for coal crushing, and can also crush some other materials, such as ore, slag, etc., but most of the existing coal mine crushers are for one-time crushing, that is, pour the coal that needs to be crushed into the crusher at one time However, when encountering a large coal mine, it will cause a large workload on the crushing device. After a long time of use, the crusher needs to be repaired, which will affect the efficiency of the crusher. Through the jaw The jaw crusher can crush large-volume ore in coal mines, but the jaw crusher will cause material to ris...

AI Technical Summary

Problems solved by technology

Coal crushers are mainly used for coal crushing, and can also crush some other materials, such as ore, slag, etc., but most of the existing coal mine crushers are for one-time crushing, that is, pour the coal that needs to be crushed into the crusher at one time However, when encountering a large coal mine, it will cause a large workload on the crushing device. After a long time of use, the crusher needs to be repaired, which will affect the efficiency of the crusher. Through the jaw The jaw crusher can crush large-volume ore in coal mines, but the jaw crusher will cause material to rise during discharge, resulting in low discharge efficiency, and the crushing surface of the movable teeth is easily damaged by concentrated wear. For this reason, we propose a Coal mine crushing device is used to solve the above problems

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