Abstract Gears play an important role in power transmission in aerospace, petroleum machinery, metallurgical and chemical industries. With the harsh requirements of application environment and use conditions, the requirements for their quality reliability and durability are becoming higher and higher. Therefore, gears The detection and analysis of surface integrity is more important and urgent. Based on the concept and connotation of surface integrity, this paper focuses on the latest non-destructive testing technology at home and abroad, and evaluates the important role of residual stress in life analysis and residual strength evaluation.
Key words gears; surface integrity; nondestructive testing; residual stress
I. Introduction
Gears are the key parts of power transmission and energy output. They often bear loads such as alternating stress and temperature changes, and they also need to consider the environmental impact during service. Therefore, in order to accurately evaluate and analyze the bearing capacity and service life of gear parts, Need to measure and analyze the surface condition and proper cleaning and strengthening of the surface to improve its surface integrity and improve its quality, safety and reliability.
The detection and analysis technology of gear surface integrity has developed very rapidly in recent years, especially foreign countries have developed many new testing equipment and established corresponding standard systems while developing new technologies. These developments have played a role in promoting their application in gears. Important role. This article aims to elaborate on the concept and connotation of surface integrity, focusing on the detection technology of gear surface integrity, on the one hand to improve the surface quality and durability of the gear, extend its service life and provide its reliability, on the other hand Promote the development of gear surface integrity testing technology, improve non-destructive testing technology and establish a corresponding quality system.
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