Copy editor: 李博
收稿日期: 2023-10-29
网络出版日期: 2024-11-25
基金资助
国家自然科学基金(52275403)
Application and performance optimization of ultrasonic vibration-assisted press-fitting technology in interference fits
Received date: 2023-10-29
Online published: 2024-11-25
王浩 , 王浩辰 , 杜云龙 , 成军强 , 严鲁涛 . 超声振动辅助压装技术在过盈配合中的应用及性能优化[J]. 陕西师范大学学报(自然科学版), 2024 , 52(6) : 74 -81 . DOI: 10.15983/j.cnki.jsnu.2024311
In the process of interference fit, in order to make the contact surface fit more closely and reduce the wear between the contact surfaces, an ultrasonic vibration-assisted press fit structure is designed. The dimensions of the horn are determined based on the matching of the output end of the horn with the press fit component, and the ultrasonic vibration frequency and power of the device are changed by altering the type and quantity of the vibrator. The results indicate that after the introduction of ultrasonic vibration, the press fit stress on the inner surface of the hub decreases by 20%, and the stress on the outer surface of the bearing decreases by 17%. With the increase of ultrasonic frequency and power, the press-fit force decreases by 10% to 20%. The greater the ultrasonic vibration power and the higher the frequency, the smaller the press fit force required for interference fit. The introduction of ultrasonic vibration in the press fit process effectively improves the connection performance of the interference fit and reduces the interface loss of the connection surface.
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