Configuration and bearing for a motor-driven linear actuator

Details Configuration and bearing for a motor-driven linear actuator Configuration and bearing for a motor-driven linear actuator

1984-03-22

1985-11-12

Wong, Peter S.

Electrical generator or motor structure

Dynamoelectric

Rotary

74 8915, 310 43, 310 90, 310105, 384125, H02K 706

Patent

active

045530564

ABSTRACT:
A simple, inexpensive, and effective linear actuator design comprises a motor adjacent to a speed-reducer, with the driven stem of the speed-reducer passing through the rotor of the motor. The stem has one bearing at one end of the reducer and its second bearing at the end of the motor, in a bearing part likewise serving as a bearing for the rotor. The distance between the two bearings is increased, and the second bearing includes a socket which has a radial elasticity owing to the fact that it is monolithically joined to the fixed bearing part via a thin portion. This second bearing part is advantageously of synthetic material. The rotation of the stem actuates a driven linear-motion part, which is prevented from rotating and which executes a translatory movement.

REFERENCES:
patent: 3028513 (1962-04-01), Sundt
patent: 3467449 (1969-09-01), Muijderman
patent: 3790237 (1974-02-01), Quaile et al.
patent: 4090746 (1978-05-01), Harkins et al.
patent: 4137473 (1979-01-01), Pfister
patent: 4333026 (1982-06-01), Bock et al.
Product Engineering, May 1971, p. 19.

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