| 摘要 |
PCT No. PCT/FI88/00117 Sec. 371 Date Jan. 9, 1990 Sec. 102(e) Date Jan. 9, 1990 PCT Filed Jul. 14, 1988 PCT Pub. No. WO89/00651 PCT Pub. Date Jan. 26, 1989.This invention relates to a gear assembly comprising two parallel dual strain wave gears. The moment transmission ability of the gear assembly is relatively high, if the gears are interconnected and they have a common flexspline (2) both ends of which are provided with a dual strain wave gear in such a manner that teeth (3a, 3b) on the outer surface of the flexspline are in meshing engagement with peripheral teeth (4a, 4a) on a first gear member and teeth (5a, 5b) on the inner surface of the flexspline (2) are in meshing engagement with shaft teeth (6a, 6b) on a second gear member. A ring (7) positioned between the teeth serves as a wave generator from which the torsional moment is transmitted into the flexspline through a bearing (8) and either one of the interconnected teeth in meshing engagement with the flexspline teeth may serve as a secondary shaft while the other remains receiving the difference between the secondary and the primary moment. |
