Apparatus for measuring imbalance of rotors

Details Apparatus for measuring imbalance of rotors Apparatus for measuring imbalance of rotors

1988-09-08

1990-12-04

Chapman, John

Measuring and testing

Rotor unbalance

Dynamic

73475, G01M 106

Patent

active

049744500

ABSTRACT:
An apparatus for measuring imbalance of rotors, in particular motor vehicle wheels, having a primary shaft driven by an electric motor. The rotor to be tested is secured to the primary shaft with the aid of a clamping device, which transmits the drive torque transmitted to the primary shaft to the rotor by means of friction. The apparatus includes a time-controlled brake, which when the electric motor is switched on reduces the drive torque in a time-controlled manner until the rush moment fades. As a result, loosening of the clamping device is prevented and a gentle start is assured.

REFERENCES:
patent: 4223775 (1980-09-01), Lloyd
patent: 4435982 (1984-03-01), Borner et al.
patent: 4467649 (1984-08-01), Mueller
patent: 4489607 (1984-12-01), Park
patent: 4502328 (1985-03-01), Wood et al.
patent: 4741210 (1988-05-01), Maus
Varaksa, Rotor Dynamic Balancing Drive-has Single Speed Induction Motor Run/Up while two-Speed Induction Motor is Run at Speed Greater Than Sync. Speed Derwent Publications Ltd. Dec. 1980, Atstract, 2 pages.

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