Precision rotor indexing device

Details Precision rotor indexing device Precision rotor indexing device

1981-09-30

1984-02-28

Braun, Leslie A.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Locking means

B23Q 1700

Patent

active

044335954

ABSTRACT:
A method and apparatus for providing precisely controlled micro-indexing of rotational elements utilizes a bidirectionally controllable linear force actuator in combination with a self-locking linkage mechanism to frictionally grip and to impart a pure turning moment to the rotational element. The method and apparatus disclosed are especially advantageous for use with large rotational elements, such as the rotors of gas turbines. The indexing method inserts a minimal amount of stored energy into a system thereby virtually eliminating overshoot. In a preferred embodiment comprised of a pair of symmetrical indexing sections, the desired micro-indexing is accomplished while imposing no additional loading on the rotational element.

REFERENCES:
patent: 1446424 (1923-02-01), Kutcher
patent: 2269835 (1942-01-01), Wallace et al.
patent: 3097485 (1963-07-01), Bidwell
patent: 3466936 (1969-09-01), Gaupin
patent: 3550477 (1970-12-01), Kinnicutt, Jr.
patent: 4018094 (1977-04-01), Schmidt
patent: 4090409 (1978-05-01), Ohleyer

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