Reaction type crushing device for coal mine

Abstract

The invention discloses a reaction type crushing device for coal mine, and relates to the technical field of coal mine crushing devices. The reaction type crushing device can regulate spacing betweena reaction plate and a plate hammer according to a practical use condition while regulating a relative distance and relative inclination degree between the plate hammer and a reaction plate of a reaction device, and guarantees that coal mines discharged from a position between the plate hammer and the reaction plate can meet required particle diameters. A first housing is in lap joint to a secondhousing; the first housing and the second housing are locked to form a crushing cavity; a rotor is arranged in the crushing cavity; the rotor is sleeved by the plate hammer; one end of the rotor is rotatably connected to the first housing, and the other end of the rotor penetrates through the outer wall of the first housing, and then is connected to a drive device; the reaction plate at the outerside of the plate hammer is further arranged in the crushing cavity; the reaction plate is connected to a regulating device which penetrates through the outer wall of the second housing; and a supporting device is further arranged on the outer wall of the second housing.

Description

technical field [0001] The invention relates to the technical field of coal mine crushing devices, in particular to an impact crushing device for coal mines. Background technique [0002] It is an area where humans mine coal resources in coal-rich mining areas, generally divided into underground coal mines and open-pit coal mines. When the coal seam is far away from the surface, it is generally selected to excavate the coal by digging the roadway underground, which is an underground coal mine. When the distance between the coal seam and the surface is very short, it is generally chosen to directly strip the surface soil layer to excavate coal, which is an open-pit coal mine. The vast majority of coal mines in my country are underground coal mines. Regardless of underground coal mines and open-pit coal mines, they are often very large during mining, so large pieces of coal mines will be crushed for the convenience of transportation. As a commonly used crushing machine, the...

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Problems solved by technology

[0003] However, the distance between the blow bar and the impact plate of the existing impact crusher cannot be adjusted. After the impact crusher leaves the factory, the distance between the blow bar and the impact plate of the impact device is fixed. Hinged connection, the other end of the impact plate is adjusted through the adjustment device, which can only realize the change of the inclination angle between the impact plate and the blow bar, but cannot realize the adjustment of the relative distance and the degree of inclination at the same time; according to actual production experience, different sizes The crushing efficiency of coal mines is different when the distance between the blow bar and the impact plate is different. When the distance between the blow bar and the impact plate is too large, large coal mines will pass through before the particle size is broken enough to meet the requirements. The discharge port at the lower end discharges

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