Rope hoist lifting hanging objects, when the wire rope or load chain tension should be parking, electric hoist according to the direction of the hook again to identify the hook shake while lifting workers should check whether hanging objects hanging in prison, wire rope hoist lifting, do not over-Meng, hanging objects from the obstacle when accelerating until after lifting speed, electric hoist lifting of hanging objects easily big high, generally over a secure channel up to 0.5m for the good things. In addition to the above considerations, the Shanghai workers to introduce you to the following to ensure safe lifting hoist four major devices:
An electromagnetic brake: brake is unique design feature is that even at full load, when the power suddenly cut off, the brake immediately play a role.
2, reverse phase protection: circuit design ensures that when the motor power phases and to avoid wrong connection, do not cause the motor burned.
3, the band brake: the use of flexible steel clamping brake wheel braking torque generated.
4, normally open brake,
rope hoist in non-working condition, the brake in the disengaged state agencies under external loads can produce movement; bodies need exercise in working condition when you stop, you can apply the necessary force to friction brake combination.