Variable-wall-thickness flexible gear of harmonic reducer

Abstract

The invention discloses a variable-wall-thickness flexible gear of a harmonic reducer. The variable-wall-thickness flexible gear is integrally formed by a harmonic tooth segment, a fixed-wall-thickness segment, an arc transition segment, a variable-wall-thickness segment and a flange segment. One side of the fixed-wall-thickness segment and one side of the harmonic tooth segment are fixedly connected, and the other side of the fixed-wall-thickness segment is fixedly connected with the inner circle of the variable-wall-thickness segment through the arc transition segment. The outer circle of the variable-wall-thickness segment is fixedly connected with the inner circle of the flange segment. Compared with the prior art, the fatigue stress of the flexible gear during loaded running of the harmonic reducer can be reduced, the risk that fatigue failures happen to the flexible gear can be reduced, the service life of the flexible gear can be prolonged easily, and the variable-wall-thicknessflexible gear has the value of application and popularization.

Description

technical field [0001] The invention relates to the field of harmonic reducers, in particular to a flexible spline of a variable-wall-thickness harmonic reducer. Background technique [0002] In the harmonic reducer, the flexspline bears both the deformation force exerted by the wave generator and the multi-tooth meshing force exerted by the steel wheel teeth on it, and is the part with the most complicated force, so the design of its wall thickness is of great importance to the flexspline. The strength of the wheel is greatly affected. At present, most general-purpose flexsplines use uniform wall thickness. The feature of this type of flexspline is that it is easy to process. However, due to the complex load of the harmonic reducer flexspline, this type of flexspline has its inherent disadvantages, and it is easy to withstand high pressure in some parts for a long time. Large fatigue stress increases the risk of fatigue failure of the flexspline and affects the life of the...

AI Technical Summary

Problems solved by technology

At present, most general-purpose flexsplines use uniform wall thickness. The feature of this type of flexspline is that it is easy to process. However, due to the complex load of the harmonic reducer flexspline, this type of flexspline has its inherent disadvantages, and it is easy to withstand high pressure in certain parts for a long time. Large fatigue stress increases the risk of fatigue failure of the flexspline and affects the life of the harmonic reducer

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