Machine element or mechanism – Gearing – Rotary bodies
Patent
1987-07-17
1989-02-21
Braun, Leslie A.
Machine element or mechanism
Gearing
Rotary bodies
74409, F16H 5504, F16H 5518
Patent
active
048054755
ABSTRACT:
The invention is an anti-backlash gear assembly comprising a first gear rotatably mounted to a shaft incorporating a first slot partially therethrough which is aligned with the longitudinal axis of the shaft. A second gear is rotatably mounted to the shaft and has a second slot extending completely therethrough which is alignable with the first slot. First and second wedge members having contiguous bevelled side surfaces are mounted in the aligned first and second slots. The first wedge member is rigidly attached to the first gear, and the second wedge member is moveably attached thereto. The second wedge member is attached to the first gear by means of a fastener extending through an oversized hole therein and threadably engaging a second threaded hole in the back wall of the first slot. A Belleville spring washer is mounted between the second wedge member and a side wall of the second slot of the second gear. Thus, as the second wedge member is moved toward the back wall of the first slot in the first gear by rotation of the fastener the second gear is rotated in relationship thereto misaligning the gear teeth eliminating any play between the gear assembly and any mating gear.
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Anchell Scott
Braun Leslie A.
Dachs Louis L.
Lockheed Corporation
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