Pitch circle positioning type static balance structure for static balance of gear ring

Abstract

The invention relates to a pitch circle positioning type static balance structure for the static balance of a gear ring. The structure comprises a mandrel body, a mandrel positioning disc and a rolling bar. The mandrel positioning disc is arranged on the mandrel body. The outer circumferential surface of the mandrel positioning disc is provided with more than two uniformly distributed arc grooves along the axial direction, and an arc cam surface tangent with the arc grooves. During operation, the rolling bar can roll within the arc grooves and the arc cam surface tangent with the arc grooves along the circumferential direction of the positioning disc. Meanwhile, during operation, the uniformly distributed arc grooves are respectively corresponding to the positions of the internal tooth slots of the gear ring. According to the technical scheme of the invention, conventional parts arranged on the mandrel of the static balance structure, such as nuts, glands and the like, are eliminated, so that the weight of the mandrel of the static balance structure is greatly reduced. The accuracy of the static balance test is improved. Parts can be loaded and clamped more conveniently and more quickly compared with a conventional static balance mandrel.

Description

technical field [0001] The invention relates to a static balance structure, in particular to a static balance structure for the static balance of a ring gear positioned on a tooth pitch circle. Background technique [0002] In the past, when carrying out the static balance test of the ring gear parts in the planetary transmission, the tolerance of the inner tooth tip circle of the ring gear was strictly controlled, and the static balance mandrel was designed to be positioned at the inner tooth tip circle, and fixed by end face compression Parts method, the static balance test is carried out on the ring gear parts. [0003] The heat treatment scheme of carburizing and quenching is often used for the ring gear parts in the planetary transmission, and the part structure is mostly thin-walled ring parts with relatively large diameters. Due to the above characteristics of ring gear parts, the traditional static balancing method of ring gear has the following problems: [0004] ...

AI Technical Summary

Problems solved by technology

[0007] The present invention solves the problem of low balance accuracy caused by simply using the static balance mandrel plus end cover structure by adopting the static balance structure of rolling rods added between the ring gear and the balance mandrel

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