2013年8月4日星期日

Electric hoist motor brake cone how to debug

Electric rope hoist  before use, after power should first start the motor, check whether the brake cone normally open, is functioning properly. In case of no rotation, which are not normal circumstances, they must immediately cut off the power to carry out commissioning work, the following details for you.
Electric  lift hoist  rated load when the decline in excessive and must be adjusted. At this point voltage may be lower than the rated voltage of 15%  may be due to moisture, rust and other reasons, leaving open cone brakes. Conical rotor motor shaft axial runout is generally 1-1.5mm, the best braking effect, electric cone brake adjustment using the lock nut counterclockwise or clockwise, reduce or increase the rotation lock nut axial movement, each rotating 1/3 laps, axial movement of the corresponding adjustment value 0.5mm.
Specific adjustment method is as follows, remove the tail cover, remove the screws properly tightened until it stops, the fan brake wheel tapered cone close the rear cover, and then the lock nut counter-rotating 2/3 of the circle, Replace the screw to basically ensure that the motor shaft axial runout is generally 1-1.5mm.
The sale of electric Wire rope hoist  factory undergo commissioning, brake adjustment to the minimum axial movement, about 1-1.5mm, axial movement with brake wear increases, if their value is greater than 3mm or when braking down over a distance V l / 100mm up, V promoted the lifting speed, should be timely adjusted, otherwise it will seriously affect the braking effect.

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