Coaxial gear system

摘要

A gear-train for transferring torque from multiple power sources includes first, second, and third input members, and an output member. The first and second input members rotate about a first axis, the third input member rotates about a second axis, and the output member rotates about a third axis. The gear-train additionally includes a first gear-set connected to the first input member. The gear-train also includes a second gear-set connected to the second input member. The gear-train additionally includes an intermediate shaft that rotates about a fourth axis. Furthermore, the gear-train includes a third gear-set connected to the intermediate shaft. In the third gear-set, first member is connected to the intermediate shaft and to the third input member, second and third members are set coaxially relative to the intermediate shaft and configured for asynchronous rotation with each other, and the third member is also connected to the output member.

主权项

1. A gear-train for transferring torque from multiple power sources, the gear system comprising:
a first input member, a second input member, and a third input member, wherein the first and second input members are configured to rotate about a first axis and the third input member is configured to rotate about a second axis; an output member configured to rotate about a third axis; a first gear-set operatively connected to the first input member, the first gear-set including first, second, and third members; a second gear-set operatively connected to the second input member, the second gear-set including first, second, and third members; an intermediate shaft configured to rotate about a fourth axis; and a third gear-set operatively connected to the intermediate shaft, the third gear-set including first, second, and third members; wherein:
each of the first and second gear-sets is a planetary gear-set;the first member of the third gear-set is continuously connected to the intermediate shaft, the second and third members of the third gear-set are set coaxially with respect to the intermediate shaft and configured for asynchronous rotation with each other;the first member of the third gear-set is connected to the third input member; andthe third member of the third gear-set is connected to the output member.