The invention provides an AC (Alternating Current) variable frequency speed regulating loading lift assembly. The AC variable frequency speed regulating loading lift assembly comprises a well and a lift car arranged in the well, wherein a buffer is arranged at the bottom of the well; a tractor is arranged at the top end of the well; the tractor is connected with a second guide wheel arranged at the bottom of the lift car through a steel wire rope; the second guide wheel is connected with a first guide wheel through a steel wire rope; a speed governor rope is connected with a speed governor; safety tongs and a safety mechanism are arranged at the bottom of the car frame of the lift car; a door-motor system and car top guard bars is arranged on the top end of the lift car; and a car door is arranged on one side of the lift car. According to the AC variable frequency speed regulating loading lift assembly disclosed by the invention, when a lift is overspeed; or the moving of the lift is out of control; or a hanging device is broken, in order to avoid personnel casualties and equipment damage accidents, automatic protection is performed through the safety tongs, the speed governor, a wire holder and the buffer; furthermore, a mechanical lock device, namely a door lock device is designed, and a safety switch is arranged, so that an action electrical signal of the lift car is fed back to a main program, and dangerous movement of the lift car caused by any accidental injury is avoided.
AC (Alternating Current) variable frequency speed regulating loading lift assembly
02.12.2015
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |
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