Coal plough planing simulation experiment device

Abstract

A coal plough planing simulation experiment device comprises a coal plough assembly and a simulation coal wall clamping assembly. The coal plough assembly is used for conducting a planing experiment on a simulated coal wall, the simulated coal wall clamping assembly is used for clamping and fixing the simulated coal wall, and the simulated coal wall clamping assembly can achieve left-right clamping of the simulated coal wall, front-back pushing of the simulated coal wall and downward pressing and fixing of the simulated coal wall. A planing head of the coal plough assembly can reciprocate along a planing head guide rail, and the surface of the simulated coal wall is planed through the moving planing head; a spraying dust-settling mechanism is arranged on the front side of the simulated coal wall; a high-definition camera and a particle imaging velocity field instrument are arranged on the side of the simulated coal wall; a groove is formed in a traction block of the planing head, and astrain gauge is attached to the inside of the groove; grooves are also formed in the side portion and the rear portion of a tool apron of the planer tool, three strain gauges are attached to the inside of the grooves in the side portion of the tool apron, and a three-way acceleration sensor is attached to the inside of the groove in the rear portion of the tool apron. A torque sensor is mounted on a connecting shaft of the chain wheel and the chain wheel driving motor.

Description

technical field [0001] The invention belongs to the technical field of coal plow performance testing, in particular to a coal plow planing simulation experiment device. Background technique [0002] my country is rich in coal resources, and most coal enterprises have been focusing on mining medium-thick coal seams in order to pursue benefits. With the increasing scarcity of medium-thick coal seam resources, thin coal seams have gradually become the focus of coal enterprises. In order to adapt to thin coal seams and extremely thin coal seams In the mining of coal seams, coal plows have gradually become the main mining equipment for thin and extremely thin coal seams. [0003] During the coal mining process, the coal plow will be affected by the characteristics of uneven hardness of coal and rock and heterogeneous joint development, which leads to the instantaneous load on the plowing blade to have the characteristics of multivariable, strong coupling, and complexity. Under th...

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Problems solved by technology

[0004] At present, because coal plows usually work under complex coal seam conditions, harsh working conditions and complex loads are unavoidable. At this stage, physical prototypes are usually used to conduct coal and rock cutting experiments directly on site, resulting in data disturbance. It is relatively large, and various parameters are difficult to accurately identify. Not only is data collection difficult, but there is also a greater risk in the experimental process.

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