Elevator traction machine

The invention provides an elevator traction machine and belongs to the technical field of motors. The technical problem that an existing elevator traction machine is poor in safety is solved. The elevator traction machine comprises a motor. The motor is provided with a machine shell and a rotating s...

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Bibliographic Details
Main Authors MENG PENG, ZHOU GUOPENG
Format Patent
LanguageChinese
English
Published 25.08.2017
Subjects
ELEVATORS
ESCALATORS OR MOVING WALKWAYS
HAULING
HOISTING
LIFTING
PERFORMING OPERATIONS
TRANSPORTING
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Summary:The invention provides an elevator traction machine and belongs to the technical field of motors. The technical problem that an existing elevator traction machine is poor in safety is solved. The elevator traction machine comprises a motor. The motor is provided with a machine shell and a rotating shaft. A speed reducer and a brake are arranged between the machine shell and the rotating shaft. The rotating shaft stretches out of the control end and the output end of the machine shell. The output end is provided with a passive safety device. The passive safety device comprises a first brake disc fixed to the machine shell and a speed limiting box fixed to the rotating shaft. A plurality of sliding cavities are evenly formed in the speed limiting box. Each sliding cavity is internally provided with a balance weight valve element capable of sliding. The machine shell is further provided with guide cavities in one-to-one correspondence with the sliding cavities. The sliding cavities communicate with the correspon
Bibliography:Application Number: CN201710469675