Harmonic screw actuator

Details Harmonic screw actuator Harmonic screw actuator

H - Electricity

02

K

310/45

H02K 7/06 (2006.01) F16H 25/20 (2006.01) F16H 49/00 (2006.01)

Patent

CA 1218400

ABSTRACT OF THE DISCLOSURE There is disclosed an improved "harmonic screw" type actuator wherein rotary motion of the power input component is converted into linear motion of the output component by means of a strain wave imposed upon a flexible sleeve member of the assembly, which is flexed into intermittent screw engagement by a member which is motor-driven to rotate relative to the periphery of the flexible sleeve; thereby causing progressively advancing/ retreating inter-engagements of thread-like surfaces formed on the axially stationary and axially movable components of the system. A variety of automatic "fail-safe" provisions are included as well as means for manual operation in power loss situations.

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