Electromagnetic torque coupling

Details Electromagnetic torque coupling Electromagnetic torque coupling

1996-05-30

1998-05-19

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 75D, 310114, 310266, 192 841, 192 8421, H02K 4906, H02K 4910, F16D 2701

Patent

active

057539880

ABSTRACT:
An electromagnetic torque coupling, particularly for connecting a torquing tool to a motor, for applying a predetermined torque to the tool; the joint presenting a pair of axial rotors fitted idly, coaxially in tandem, and mechanically disconnected from each other inside a casing, and respectively connected to the motor and the tool; the two rotors presenting respective opposite disk-shaped ends defined by respective opposite front faces facing each other and separated by a predetermined axial clearance, and surrounded radially on the outside by an electromagnet fitted to the casing, so that the disk-shaped ends are immersed in a predetermined magnetic field, the flux lines of which are linked via an air gap defined by the predetermined axial clearance; the front faces each presenting a respective ring of radial face teeth; the teeth in each ring presenting ridges defined by respective coplanar, flat face surfaces defined by annular wedges; and the axial clearance being defined between the surfaces of the teeth in one ring and the surfaces of the corresponding teeth in the other ring.

REFERENCES:
patent: 2514385 (1950-07-01), Garbarini
patent: 3394783 (1968-07-01), Searle
patent: 3713015 (1973-01-01), Frister et al.
patent: 4134054 (1979-01-01), Akamatsu
patent: 4395741 (1983-07-01), Kobayashi et al.
patent: 4773518 (1988-09-01), Raad et al.
patent: 4814654 (1989-03-01), Gerfast
patent: 5260642 (1993-11-01), Huss

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