Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent
1992-08-20
1994-12-06
Laub, David W.
Machine element or mechanism
Mechanical movements
Reciprocating or oscillating to or from alternating rotary
74 8915, 74640, 192143, F16H 2702
Patent
active
053700112
ABSTRACT:
The present disclosure concerns an actuator for converting rotary movement into linear movement. The actuator comprises a prime mover turning a reduction gear assembly which, in turn, drives a mechanical transmission including a linearly moving control element. To achieve precise movement of the control element to a desired position, and to ensure the desired position is retained as exactly as possible, a reduction gear assembly which is self-locking with respect to the maximum back-driving torque exerted on the reduction gear assembly by the mechanical transmission, is combined with a low friction, non-self-locking mechanical transmission. Preferably, the reduction gear assembly is implemented in the form of a strain wave reduction gear set and the mechanical transmission element is implemented in the form of a cooperating ballscrew and ballnut.
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Technische Rundschau, "Prazisionsgetriebe fur hohe Drehmomente", Peter Eisenring, Bd. 77, Nr. 19, Mai 1985, Bern Ch, Seiten 44-49.
Georgi Michael
Gilges Siegmar
Hammes Karl
Ries Arnold
Slatter Rolf
Harmonic Drive Antriebstechnik GmbH
Laub David W.
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