The Impact of micro-texture distribution on the frictional performance of straight bevel cylindrical gears

Xu, Tiantian (author), Guan, Qingyu (author), Ma, Chunlu (author)

In the gear transmission process, the tooth surface friction environment is very complex, and the gear surface is prone to high stress, strain and wear, which can easily cause gear failure. In order to alleviate the wear of the gear tooth surface and improve the anti-glueing ability of the tooth surface during gear transmission, this paper solves this problem by introducing micro-texture in the meshing gear. Firstly, three kinds of micro-textured gears are designed based on the mechanism of micro-textured structure in the friction vice and the meshing position during gear transmission. Secondly, finite element simulation tests were conducted with and without micro-textured gears, and the stresses, strains, and wear levels experienced by the micro-textured gears during transmission were analyzed. The study found that torque and rotational speed have a direct impact on the gear surface. Compared to traditional gears, gears with micro-textures distributed above the pitch circle promoted a 51.57 % reduction in stress and a 61.81 % reduction in strain, also altering the concentration locations of stress and strain on the tooth surfaces, which led to a 50.51 % reduction in wear. This research has significant implications for improving the frictional performance of gears, with micro-textures on the tooth surfaces acting as containers for lubricants and metal filings, preventing abrasive wear of the friction pairs on the tooth faces and enhancing the durability of the gears.

• Language: English
• Keywords: gear transmission, micro-texture, friction, wear, stress-strain, temperature
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Submitted for review: 30.04.2024
• Article acceptance date: 15.07.2024
• Publication date: 01.12.2024
• Year: 2024
• Number of pages: Str. 582-594
• Numbering: Vol. 70, no. 11/12
• PID: 20.500.12556/RUL-166826
• UDC: 621
• ISSN on article: 2536-3948
• DOI: 10.5545/sv-jme.2024.1033
• COBISS.SI-ID: 223996419
• Publication date in RUL: 27.01.2025

Record is a part of a journal

• Title: Strojniški vestnik
• Shortened title: Stroj. vestn.
• Publisher: Fakulteta za strojništvo
• ISSN: 2536-3948
• COBISS.SI-ID: 294943232

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: zobniška gonila, mikrotekstura, trenje, obraba, napetosti in deformacije, temperatura