Tip-rem modification for full tooth surface pattern and require no edge contact of high loaded capacity cycloidal hypoid gears

高承载能力摆线准双曲面齿轮满齿面印痕防边缘接触修缘设计

¹ National Key Laboratory of Extreme Service Performance Precision Manufacturing, Central South University, Changsha 410083, China
² School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
³ China Aviation Power Machinery Research Institute, Zhuzhou 412002, China
⁴ Changsha Zhongchuan Gear & Transmission Driveline Co., Ltd., Changsha 410083, China

Received: 21 May 2025

Abstract

The full tooth surface pattern and require no edge contact design of cycloid bevel gears based on Tip-rem is a novel gear optimization design method, which aimed at optimizing contact performance of gears and preventing edge contact, thus improving the transmission accuracy and life of gears. The method is based on the principles of full contact pattern design and require no edge contact design, and by modifying the root of tool, according to coordinate transformation relationship of machining, we get the tooth face with Tip-rem, so as to maximize contact pattern of the tooth face from NLTCA(numerical loaded contact analysis), and there is no edge contact during gear meshing process. Example results prove that the present method can achieve design of maximizing the full tooth face contact pattern under heavy loaded no edge contact, and at the same time reduce the maximum contact pressure to improve the load carrying capacity.

摘要

基于齿顶修缘的摆线锥齿轮(又称等高齿锥齿轮)满齿面印痕防边缘接触修缘设计是一种新型的齿轮优化设计方法, 旨在优化齿轮的接触性能, 防止边缘接触, 从而提高齿轮的传动精度和寿命。该方法基于满印痕设计和防边缘接触设计原则, 通过对刀具根部进行修形, 根据加工的坐标转换关系, 得到齿顶修缘的齿面, 使NLTCA(数值加载接触分析)的齿面印痕面积最大化, 并且齿轮啮合过程无边缘接触。算例结果证明: 所提方法可以实现重载工况下全齿面印痕最大化设计, 且不出现边缘接触, 同时降低最大接触压力, 达到提高承载能力目的。