Device for temporarily locking a rotor onto a stator

Details Device for temporarily locking a rotor onto a stator Device for temporarily locking a rotor onto a stator

1988-08-03

1989-10-10

Bonck, Rodney H.

Machine element or mechanism

Gyroscopes

With caging or parking means

G01C 1926

Patent

active

048723576

ABSTRACT:
A device for temporarily locking onto a stator a rotor that normally rotates on the stator on magnetic bearings (such as an inertia wheel in a space satellite) includes a frustoconical bearing surface near the periphery of the rotor and a complementary frustoconical bearing surface on the stator. The rotor bearing surface is axially engaged with the stator bearing surface by a cable forming an annular loop in a transverse plane. A device is provided for releasing this cable. A plurality of radially mobile elementary bearing surfaces are coupled to the stator and there is a second bearing surface at the periphery of the rotor. These elementary bearing surfaces are axially engaged with the second bearing surface on the rotor, against the action of a return spring arrangement, in the direction opposite that in which the conical bearing surface on the stator applies an axial engagement force to the frustoconical bearing surface on the rotor.

REFERENCES:
patent: 4211452 (1980-07-01), Poubeau
patent: 4322984 (1982-04-01), Lasker et al.
patent: 4345485 (1982-08-01), Livet et al.
"Satellite Flywheels with Magnetic Bearings and Passive Radial Centering", Poubeau, J. Spacecraft vol. 17 No. 2, Article #78-571R, pp. 93-98, Mar.-Apr., 1980.

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