Means to minimize the backlash of meshing gears

Details Means to minimize the backlash of meshing gears Means to minimize the backlash of meshing gears

1979-10-26

1982-07-13

Bentley, Stephen C.

Ordnance

Mounts

Training mechanisms

74384, 74409, 74526, F41F 2102

Patent

active

043388531

ABSTRACT:
A precision power gear train assembly particularly adaptable for use with vehicles having a 360.degree. rotatable turret mounted thereon. The assembly embodies novel spring and stop means to minimize backlash and to limit gear tooth disengagement of the enmeshed output pinion and ring gears of such an assembly. More specifically a pinion-ring gear assembly mounts a gear box to oscillate about an axis parallel to the pinion axis of rotation such that the tooth pressure between pinion and ring gear biases the teeth apart, increasing backlash. A preloaded spring biases the gear teeth into tight mesh to eliminate backlash until the tooth pressure force exceeds a predetermined maximum. Thereafter, further increases in the tooth pressure force separates the teeth by compression of the spring beyond its preloaded compression. A stop limits tooth separation.

REFERENCES:
patent: 2542217 (1951-02-01), Stacey et al.
patent: 3995509 (1976-12-01), Backus et al.
patent: 4047447 (1977-09-01), Culver et al.
patent: 4117809 (1978-10-01), Kittler
Fredrick T. Gutmann, "18 Ways to Control Backlash in Gearing", Product Eneering, Oct. 26, 1959, pp. 71-72.

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