| 摘要 |
A stiff anti-backlash gear unit comprising two or more high ratio reducer assemblies provides an energy efficient, low backlash, speed reducer. The gear unit is assembled in such a way as to eliminate backlash without any preloading and may be configured as a conventional, planetary or star gear with co-axial, spaced, angled or multiple output shafts. |
| 主权项 |
1. An apparatus comprising:
a first gear (21), a second gear (22), a case (40), a first reducer assembly (17a), and a second reducer assembly (17b); each reducer assembly (17a, 17b) comprises: a reference member (54) defining a reducer axis (2); a first reducer gear (31) which is co-axial with the corresponding reducer axis (2) and engages the first gear (21); and a second reducer gear (32) which is co-axial with the corresponding reducer axis (2) and engages the second gear (22); wherein the first reducer assembly (17a) provides a first reduction ratio and the second reducer assembly (17b) provides a second reduction ratio where each reduction ratio is the corresponding number of first reducer gear (31) turns divided by the number of corresponding second (32) reducer gear turns; and wherein the reference member of the first reducer assembly and the reference member of the second reducer assembly are connected to each other by a plurality of posts. |
