A permanent magnet frequency conversion rack transmission door opener comprises a door head, a transmission mechanism and an asynchronous door cutter. A door head guide rail is provided with a left following chain and a right following chain. A guide support and a guide plate are installed between the left following chain and the right following chain, and an auxiliary lock is installed on the right following chain. Rope wheels are installed on the two sides of the bottom of the door head respectively, and a steel wire rope winds around the two rope wheels. A left door hanger plate and a right door hanger plate are in linkage through the left following chain and the right following chain via the steel wire rope. Auxiliary lock plugs are installed at the positions, corresponding to the auxiliary lock, of the left door hanger plate and the right door hanger plate. The transmission mechanism is composed of a motor, a gear and a rack. The motor is installed on the door head. The gear is installed on a motor shaft. The rack is installed on the right door hanger plate and meshed with the gear. The permanent magnet frequency conversion rack transmission door opener is simple in structure, flexible in installation, convenient to maintain, small in occupied space and low in energy consumption.
Permanent magnet frequency conversion rack transmission door opener
2015-11-04
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |