The inside roller and outside roller and the production manner null of inscribed gearing epicyclic gear

摘要

PROBLEM TO BE SOLVED: To reduce an angular backlash by forming a longitudinal section of a cylindrical inner peripheral wall in a barrel shape having an inside diameter of the shaft directional central part of the inner peripheral wall larger than an inside diameter of both end paets in a cylindrical inner roller used together with a columnar inner pin to constitute a means to transmit only an autorotation component. ;SOLUTION: An inner roller 30 is not straight in a longitudinal section of an inner peripheral wall 32 of the cylinder, but an inside diameter d1 of the shaft directional central part is larger than an inside diameter d2 of both end parts, and the central part P1 of a through hole 31 forms a projecting barrel shape. In the size of the inner roller 30, the shaft directional length L1 is 25 mm, the inside diameter d2 in both end parts P2 is 12 mm, a thickness (t) in both end parts P2 is 2.5 mm, and a difference in an inside diameter between the central part P1 and both end parts P2 is set to about 5 to 6 μ on one side. The projecting part 32R1 in the central part P1 and the recessed part 32R2 in both end parts P2 smoothly continue with each other, and this recessed part 32R2 and both end parts 32R3 also smoothly continue with each other. Motive power transmitting efficiency can be improved and a noise and an angular backalsh can be reduced without loosening an inner pin.;COPYRIGHT: (C)1999,JPO