Fan-cooled actuator for power chuck

Details Fan-cooled actuator for power chuck Fan-cooled actuator for power chuck

1979-11-01

1982-03-16

Michalsky, Gerald A.

Motors: expansible chamber type

With motive fluid valve

Contracting chamber exhaust valve controlled by expanding...

92106, 92144, 279 4, B23B 3130

Patent

active

043195164

ABSTRACT:
A power-chuck actuator has an actuator body forming an axially throughgoing passage and formed centered on this axis with an annular piston displaceable axially forwardly and backwardly and having a collar projecting from the front of the actuator. This collar can be connected to the actuating element of a power chuck whose chuck body can be bolted to the front end of the actuator body. In addition the actuator body has a backwardly extending sleeve on which is carried a connector body that is normally held against rotation and that is provided with hydraulic connections for pressurizing the compartments axially flanking the piston to operate the actuator. The actuator body is provided with a fan aligned with axially throughgoing passages of the connector body so that as the two bodies rotate relative to each other air is sucked through these passages by the fan to cool the actuator.

REFERENCES:
patent: 2835227 (1958-05-01), Gamet
patent: 3748968 (1973-07-01), Pinto
patent: 3922952 (1975-12-01), Roddy et al.
patent: 4221160 (1980-09-01), Selden

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