Servo-driven elevator for dynamic balancer

Details Servo-driven elevator for dynamic balancer Servo-driven elevator for dynamic balancer

1997-07-30

2000-06-27

Chapman, John E.

Measuring and testing

Rotor unbalance

Dynamic

G01M 106

Patent

active

06079268&

ABSTRACT:
The cycle times of an automatic single station residual unbalance measuring arrangement for a tire-wheel assembly are improved by the application of servo control to the vertical displacement drive of an elevator. Information relating to a particular tire-wheel type is obtained by direct measurement and/or correlation with data associated with predetermined tire-wheel types. A computer controls the operation of a servo motor that controls the vertical displacement of the tire-wheel assembly onto and off of a precision spindle and chuck on which the residual unbalance measurement is performed. The arrangement affords rapid acceleration onto and off of the precision spindle and chuck, but a gentle engagement between the wheel-tire assembly and the precision chuck to avoid tire bounce and damage to the precision balancer tooling.

REFERENCES:
patent: 2898764 (1959-08-01), Kinsey et al.
patent: 4262536 (1981-04-01), Orem et al.
patent: 5189912 (1993-03-01), Quinlan et al.

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