紧固件防松性能定量评价方法

doi:10.3901/JME.2021.15.071

机械工程学报 ›› 2021, Vol. 57 ›› Issue (15): 71-79.doi: 10.3901/JME.2021.15.071

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紧固件防松性能定量评价方法

张铁亮¹, 王卓^2,3, 宋镝冲^2,3, 王磊^2,3, 丁晓宇¹

1. 北京理工大学机械与车辆学院北京 100081;
2. 内蒙古第一机械集团有限公司包头 014030;
3. 特种车辆及其传动系统智能制造国家重点实验室包头 014030

收稿日期:2020-08-14 修回日期:2020-12-12 出版日期:2021-08-05 发布日期:2021-11-03
通讯作者: 丁晓宇(通信作者),男,1984年出生,博士,副教授。主要研究方向为接触力学、连接力学、复杂结构精密装配理论与技术。E-mail:xiaoyu.ding@bit.edu.cn
作者简介:张铁亮,男,1996年出生。主要研究方向为连接力学。E-mail:bitzhangtl@163.com
基金资助:
国家自然科学基金（51975055），国防基础科研核科学挑战专题（TZ2018007）和天地科技股份有限公司创新创业基金重点（2020-2-TD-ZD002）资助项目。

Quantitative Evaluation Method of Anti-loosening Performance for Fasteners

ZHANG Tieliang¹, WANG Zhuo^2,3, SONG Dichong^2,3, WANG Lei^2,3, DING Xiaoyu¹

1. School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081;
2. Inner Mongolia First Machinery Group Co., Ltd., Baotou 014030;
3. State Key Laboratory of Smart Manufacturing for Special Vehicles and Transmission System, Baotou 014030

Received:2020-08-14 Revised:2020-12-12 Online:2021-08-05 Published:2021-11-03

摘要/Abstract

摘要： 工程领域一直都缺少对紧固件防松性能进行定量评价的方法，针对该问题，基于现有的横向振动试验方法，改进了横向振动试验设备，提出以导致旋转松动的临界横向力作为评价防松性能的定量指标，并给出了具体的试验方法和数据获取方法。基于所提的方法，对弹簧垫圈、楔形螺母和偏心双螺母的防松性能进行了定量测试与对比，在本研究试验条件下，得出以下结论：①弹簧垫圈没有防松性能；②相同预紧力下，相比普通螺纹连接，使用楔形螺母后防松性能最多提升了117%；③相同预紧力下，相比普通螺纹连接，使用偏心双螺母后防松性能最多提升了125%；④在高预紧力条件下，使用楔形螺母和偏心双螺母后防松性能和普通螺纹连接的防松性能相差不大。

关键词: 紧固件, 防松性能, 临界横向力, 横向振动

Abstract: There is a lack of quantitative evaluation method for fastener's anti-loosening performance in engineering field. To solve the problem, based on the existing transverse vibration test method, the transverse vibration test equipment is improved and the critical transverse force that causes rotational loosening is proposed as a quantitative index for evaluating the anti-loosening performance, and detailed test methods and data acquisition methods are given. Based on the method, the anti-loosening performance of spring washer, wedge nut and eccentric double nut are compared. Under the experimental conditions, The results show that:①Spring washer has no anti-loosening performance; ②Under the same preload, compared with common thread connection, the anti-loosening performance of wedge-shaped nut is improved by 116.7% at most; ③Under the same preload, compared with the common thread connection, the anti-loose performance of the double eccentric nut is improved by 125% at most; ④Under the condition of high preload, the anti-loosening performance of the wedge nut and the eccentric double nut have little difference with the anti-loosening performance of common thread connection.

Key words: fasteners, anti-loosening performance, critical transverse force, transverse vibration

中图分类号:

TG156

张铁亮, 王卓, 宋镝冲, 王磊, 丁晓宇. 紧固件防松性能定量评价方法[J]. 机械工程学报, 2021, 57(15): 71-79.

ZHANG Tieliang, WANG Zhuo, SONG Dichong, WANG Lei, DING Xiaoyu. Quantitative Evaluation Method of Anti-loosening Performance for Fasteners[J]. Journal of Mechanical Engineering, 2021, 57(15): 71-79.

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紧固件防松性能定量评价方法

Quantitative Evaluation Method of Anti-loosening Performance for Fasteners

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