Reversible anti-backlash power transmission

Details Reversible anti-backlash power transmission Reversible anti-backlash power transmission

1989-01-12

1991-02-05

Dorner, Kenneth J.

Machine element or mechanism

Gearing

Backlash take-up

748101, F16H 5518

Patent

active

049894722

ABSTRACT:
A reversible anti-backlash power transmission for selectively transmitting power in opposite directions without backlash in the gear train. The transmission includes interconnected first and second gear boxes. Each gear box includes a drive shaft having a worm associated with the drive shaft for rotation therewith, a worm gear in meshing engagement with the worm, a driven shaft associated with the worm gear for rotation therewith, and a pinion gear structurally associated with the drive shaft for rotation therewith. A rack gear is in meshing engagement with the pinion gear of each of the first and second gear boxes. An electro-magentic coupler interconnects the drive shafts of the gear boxes. The coupler allows the automatic angular displacement of the drive shafts of the two gear boxes relative to each other to eliminate gear backlash in any of the mating gears.

REFERENCES:
patent: 330391 (1885-11-01), Gifford
patent: 2070807 (1937-02-01), Roehm et al.
patent: 2224257 (1940-12-01), Eisele
patent: 4143888 (1987-12-01), Siler
patent: 4305307 (1981-12-01), Kiunke
patent: 4747321 (1988-05-01), Hanne
"18 Ways to Control Backlash in Gearing", Product Engineering, Oct. 26, 1959.

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