The invention provides a lifting device for a screw elevator. The lifting device for the screw elevator comprises a motor, a screw, a flange plate and bearing rolling nuts. The flange plate is connected with the motor and the bearing rolling nuts. The motor, the flange plate and the bearing rolling nuts are arranged on the periphery of the screw annularly. The motor comprises an inner rotor with a through hole. The screw penetrates through the through hole of the inner rotor. Each bearing rolling nut comprises a bearing body and bearings, and the bearings are arranged on the bearing bodies. The screw comprises a spiral groove formed in the outer surface of the screw. The bearing rolling nuts are engaged with the screw through the spiral groove to achieve rolling transmission. According to the lifting device for the screw elevator, a traditional sliding transmission mode is replaced by the rolling transmission mode; the lifting device for the screw elevator has the advantages of being low in heat, small in noise, low in friction force and capable of enabling the service life of the elevator to be long.
Lifting device for screw elevator
2015-12-16
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |
Screw elevator safe drive device and screw elevator with same
European Patent Office | 2020
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