An experimental platform for testing the dynamic characteristics of the traveling mechanism of a coal mining machine

Abstract

The invention relates to the field of coal mine mechanical equipment performance test, and particularly relates to a shearer walking mechanism dynamic characteristic test experiment bench. The experiment bench consists of a fixed platform, a movable platform, a moving rail, a fixed pin rack, an adjustable pin rack, a speed reducer, a motor, a walking wheel, a rotary encoder, an adjustment pad, a first coupling, a second coupling, a bolt, a nut and a walking axle. The principle of relative motion is used. The walking wheel rotates around the fixed axis. The fixed pin rack and the adjustable pin rack can horizontally move. The angular speed of the walking wheel can be tested in real time through the rotary encoder. The shearer walking mechanism dynamic characteristic test experiment bench provided by the invention has the advantages of simple principle and clever and reasonable structure, and has certain economic benefit.

Description

technical field [0001] The invention relates to the field of performance testing of coal mine mechanical equipment, in particular to an experimental platform for testing the dynamic characteristics of the traveling mechanism of a coal mining machine. Background technique [0002] The shearer is an important mechanical equipment in the modern fully mechanized mining system. Its good mechanical performance is an important guarantee for the high production and high efficiency of the coal mine. As an important part of the shearer, the traveling mechanism is responsible for the correct movement of the shearer along the working face. task, because the shearer drum is subject to complex cutting loads and a certain degree of partial load, therefore, the meshing of the gears and pin racks in the traveling mechanism presents a very complicated meshing state, resulting in various failures of the traveling mechanism , such as broken teeth of the travel wheel, abnormal wear of the travel...

AI Technical Summary

Problems solved by technology

[0002] The shearer is an important mechanical equipment in the modern fully mechanized mining system. Its good mechanical performance is an important guarantee for the high production and high efficiency of the coal mine. As an important part of the shearer, the traveling mechanism is responsible for the correct movement of the shearer along the working face. task, because the shearer drum is subject to complex cutting loads and a certain degree of partial load, therefore, the meshing of the gears and pin racks in the traveling mechanism presents a very complicated meshing state, resulting in various failures of the traveling mechanism , such as broken teeth of the travel wheel, abnormal wear of the travel wheel, pin teeth and guide shoes; secondly, due to the distribution of the coal seam, a certain horizontal bending angle and vertical bending angle should be allowed in the conveyor, which leads to Rail joints, road wheels and pin teeth are often not meshed correctly, which greatly reduces the reliability and stability of the shearer, and increases the cost of coal mining in disguise.

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