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

Abstract

The invention relates to a static balance structure for the static balance of the ring gear positioned by the tooth pitch circle, which includes a mandrel body, a mandrel positioning disc and a rolling rod. The mandrel positioning disc is installed on the mandrel body and positioned outside There are more than 2 uniformly distributed circular arc grooves along the axial direction and circular arc cam surfaces tangent to the circular arc grooves on the circumferential surface. The circular arc cam surface rolls along the circumferential direction of the positioning plate, and the evenly distributed circular arc grooves can correspond to the positions of the tooth grooves of the inner teeth of the ring gear respectively during operation. The present invention cancels parts such as nuts and glands on the static balance mandrel in the past, greatly reduces the weight of the balance mandrel, improves the precision of the static balance test, and is more convenient and faster than ordinary balance mandrels for clamping parts.

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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