The invention provides a lifting driving device for a screw elevator. The lifting driving device for the screw elevator comprises a screw, a driving motor, a flange and a roller assembly. The screw is provided with the driving motor. One end of the flange is connected with the driving motor, and the other end of the flange is connected with the roller assembly which is arranged on the outer surface of the screw. The screw comprises a screw shaft and a groove formed in the outer surface of the screw shaft. The driving motor comprises a shell, a stator set and an inner rotor. The stator set and the inner rotor are arranged in the shell. The inner rotor is connected with the flange. The roller assembly comprises a plurality of roller shafts and a plurality of star-shaped rollers arranged on the roller shafts in a sleeving mode respectively. The axial directions of the roller shafts are parallel to the axial direction of the screw, and the roller shafts are connected with the flange. The star-shaped rollers are engaged with the groove of the screw. According to the lifting driving device for the screw elevator, a rolling transmission mode is used for replacing a traditional sliding transmission mode; the lifting driving device has the advantages of being low in friction force, low in heat, small in noise and long in service life of the elevator.
Lifting driving device for screw elevator
2015-12-16
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |