Design and application of gear grinding rollers for hyperbolic worms
GE Bowei
LEI Laigui
Abstract：[Objective]As an advanced gear design technology,the gear modification is of great significance in improving gear bearing capacity,service life and noise reduction.As one of the key tools to realize the tooth profile modification for gears,the tooth profile design process of the form grinding worm diamand rollers is still unclear.At the same time,using the function of arc,parabola and high order curve to fit the tooth profile of worm wheels,there are some phenomena such as the large deviation between the modification amount and the theoretical design,and the curve distortion.Based on the analysis of hyperbolic characteristics and the design and working principle of worm gear grinding rollers,the application prospect of hyperbolic tooth profile in the design of worm gear grinding roller was discussed.[Methods]The design transfer function of hyperbolic worm grinding roller tooth profile was established based on the space coordinate transformation by analyzing the principle of double parameters'enveloping forming of spiral wheel and helical gear and the forming and dressing principle of worm grinding roller and helical gear wheel.The relation and mechanism of the hyperbolic grinding roller tooth profile and the gear tooth profile in the process of manufacturing and dressing were clarified,which laid a theoretical framework for the application of hyperbolic tooth profile in the design of rollers.Finally,through grinding tests,the feasibility of hyperbolic tooth profile in worm grinding roller tooth profile design,manufacturing and application effect was verified.[Results]The results show that the hyperbolic tooth profile can not only perfectly meet the high precision requirements of gear machining,but also show significant advantages in comparison with the higher order function of topological modification—no distortion occurs.This result provides a strong practical support for the wide application of hyperbolic profile in worm gear grinding roller design,and also provides a new idea and direction for the optimization and innovation of gear machining technology in the future.
Keywords：Hyperbolic tooth profileForming worm gear grinding rollerCoordinate transformation
Publication Date：2025-08-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 77-83 )