Thin coal seam coal mining machine rocker arm

Abstract

The invention discloses a thin coal seam coal mining machine rocker arm. The thin coal seam coal mining machine rocker arm comprises a rocker arm body and a shock absorbing module, a first-stage horizontal gear transmission is arranged at the right end of the interior of the rocker arm body, the first-stage horizontal gear transmission is sequentially connected to a second-stage horizontal gear transmission, a third-stage planetary reduction transmission and a fourth-stage horizontal gear transmission. The thin coal seam coal mining machine rocker arm has the beneficial effects that rocker armmotors adopt a small-diameter double-motor arrangement structure, the thickness of the rocker arm is effectively reduced, and after the torque is output by the double motors, the power is transmittedto a roller through the four stage gear transmissions; a planetary reducer is arranged at the third-stage transmission position, is away from a roller vibration source, and effectively reduces the impact load of the rocker arm planetary reducer, and the reliability is improved; and the final stage adopts the structure of the horizontal gear output to improve the impact resistance performance andreduce the diameter of a roller output shaft, the height of roller blades is increased, and the coal loading effect of the roller of a thin coal seam coal mining machine is improved.

Description

technical field [0001] The invention discloses a spraying device, in particular to a rocker arm of a thin coal seam shearer. Background technique [0002] The rocker arm of the mining machine generally adopts a large-diameter single-motor output structure, and the transmission structure is composed of three-stage spur gear transmission and one-stage planetary reduction mechanism. This structure has the following disadvantages: ①Single-motor arrangement, the diameter of the motor is large, which increases the thickness of the rocker arm; ②The planetary reduction mechanism at the end is closer to the vibration source, the impact load is large, and the failure rate is high; The size of the drum connection is increased, the height of the drum blades is reduced, and the coal charging effect is reduced. Therefore, this rocker arm structure cannot meet the requirements of thin coal seam shearer rocker arm thickness, low failure rate, and good coal loading effect. Contents of the...

AI Technical Summary

Problems solved by technology

This structure has the following disadvantages: ①Single-motor arrangement, the diameter of the motor is large, which increases the thickness of the rocker arm; ②The planetary reduction mechanism at the end is closer to the vibration source, the impact load is large, and the failure rate is high; The connection size of the drum is increased, the height of the drum blades is reduced, and the coal charging effect is reduced

Therefore, this rocker arm structure cannot meet the requirements of thin coal seam shearer rocker arm thickness, low failure rate, and good coal loading effect.

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