Sealed-type wave gear device

Details Sealed-type wave gear device Sealed-type wave gear device

1997-08-11

2000-05-23

Bucci, David A.

Machine element or mechanism

Gearing

Teeth

F16H 132

Patent

active

060653620

ABSTRACT:
A sealed-type wave gear device 1 has a sealed space 13 formed by a device housing 2, first and second end plates 3 and 4 placed in openings at both the ends thereof, a hollow Input shaft 5, and first to fourth seals (8, 9, 11, 12) for sealing these members. A flat wave gear mechanism 20 is accommodated in the sealed space 13, which comprises a rigid internal gear 210, a silk-hat-shaped flexible external gear 220 inside the rigid internal gear 210, and a wave generator 230 fixed inside the flexible external gear 220. A lubricant in the wave gear mechanism 20 is completely prevented from leaking outside. Only the device housing 2, the first and second end plates 3 and 4, and both the ends of the input shaft 5 which are exposed outside need to be protected from rusting. The wave gear device 1 is suitable for being used as a speed reduction unit of a driving mechanism employed in a clean room.

REFERENCES:
patent: 4770059 (1988-09-01), Beyer
patent: 4909098 (1990-03-01), Kiryu
patent: 5195401 (1993-03-01), Mouton
patent: 5388483 (1995-02-01), Ishida et al.
patent: 5715732 (1998-02-01), Takizawa et al.
patent: 5775178 (1998-07-01), Asawa et al.

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