Patent ID: 11873891
Assignee: ABB SCHWEIZ AG
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 0:
1. A planetary gearbox, comprising:
a housing extending along a first axis;
a first coupling member arranged on an inner circumference of the housing;
an input component operable to rotate about the first axis;
at least one intermediate component, each intermediate component comprising a second coupling member and adapted to be driven by the input component to rotate about a second axis offset from the first axis with the second coupling member engaging with the first coupling member;
an output component coupled to the at least one intermediate component and operable to rotate about the first axis with rotation of the at least one intermediate component,
wherein at least one of the first coupling member and the second coupling member comprises a synchronous belt, and
wherein the each intermediate component further comprises a wheel for the synchronous belt to be arranged on its outer circumference, and the first coupling member comprises teeth engaging with teeth of the synchronous belt,
wherein the wheel comprises teeth arranged on its outer circumference, and the synchronous belt comprises a double-side synchronous belt arranged along the outer circumference of the wheel by arranging teeth of one side of the double-side synchronous belt between the teeth of the wheel.