The invention relates to an auxiliary braking device for an escalator. The auxiliary braking device comprises a braking frame, a connecting rod, a reset part, a catch pawl frame, a catch pawl, a support frame and a ratchet wheel, wherein the connecting rod is arranged at one end of the braking frame, the reset part is arranged at the other end of the braking frame in a pivoting way and resets through the gravity, the catch pawl frame is connected with the connecting rod, the catch pawl is pivoted on the catch pawl frame, the support frame is fixedly arranged on the braking frame, the ratchet wheel is matched with the catch pawl and is provided with a driving main shaft, and the braking frame is fixedly provided with an electromagnet connected with the connecting rod and a switch used for controlling the work of the electromagnet. The auxiliary braking device has the advantages that the reset part realizing reset through the gravity replaces the existing spring, the reliability is good, the regulation on the elastic force of the spring is not needed, the maintenance is avoided, the maintenance cost is greatly reduced, meanwhile, the safe operation stop of the escalator is ensured, the accidental occurrence is prevented, in addition, the structure is simple, the braking is stable, during the braking, the retarded velocity is low, and the braking stop distance is short.
Auxiliary braking device for escalator
2015-05-27
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |
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