combined worm reducer appear off-axis, we should use the following method: 1, the brake wheel and hydraulic coupling balancing poor. Typically coupling only static balance test, without balancing test, there is a certain deviation balancing coupling in high-speed operation, it will produce additional dynamic load on the shaft, increasing the shaft deformation and stress, after a long run , will produce fatigue.
2, deviation worm reducer and motor concentricity too large. Reducer and motor are connected by coupling, coaxial three requirements are very strict, but in actual production, maintenance personnel are often only concerned gear lubrication and leakage and other issues, coupled with the detection difficulties and other reasons, the question of concentricity often overlooked. Elastomer coupling compensation capability is limited, a large degree between the coaxial gear and the motor will produce a vertical shaft to an additional alternating load axis, after a long run, it will speed up the rate of fatigue.
3, coupling types and installation improper selection. Belt conveyor drive with outer drive constant filling fluid coupling, fastened when installing outer gear input shaft, flexible coupling and motor connections, coupling all weight bearing by the input gear and the motor shaft basic does not bear the weight.
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