| 拧紧速度对螺栓转矩系数的影响分析 |
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| 引用本文： | 张和平,王晓斌,莫易敏,满健康,王赓,陈璟.拧紧速度对螺栓转矩系数的影响分析[J].武汉理工大学学报(交通科学与工程版),2014(4):860-863. |
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| 作者姓名： | 张和平 王晓斌 莫易敏 满健康 王赓 陈璟 |
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| 作者单位： | 武汉理工大学机电工程学院,武汉430070 |
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| 基金项目： | 校企合作科研基金项目资助（批准号：01W10-911-010-OROB） |
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| 摘 要： | 为了研究拧紧速度对螺栓拧紧特性的影响,利用多功能螺栓紧固分析系统对紧固件进行转矩——夹紧力试验,通过试验分析得出摩擦系数随着拧紧速度的增大而减小并逐渐趋于稳定;同时摩擦系数是影响转矩系数的主要因素,转矩系数是摩擦系数的增函数,在一定范围内,转矩系数与摩擦系数呈同增减趋势;紧固件的拧紧过程,摩擦会产生高温,温度变化是使摩擦系数发生变化的重要因素.
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| 关 键 词： | 螺栓 摩擦系数 轴向预紧力 拧紧速度 拧紧转矩 |
Analysis on the Influence of Bolt Tightening Speed on the Bolt Torque Coefficient |
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| ZHANG Heping,WANG Xiaobin,MO Yimin,MAN Jiankang,WANG Geng,CHEN.Analysis on the Influence of Bolt Tightening Speed on the Bolt Torque Coefficient[J].journal of wuhan university of technology(transportation science&engineering),2014(4):860-863. |
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| Authors: | ZHANG Heping WANG Xiaobin MO Yimin MAN Jiankang WANG Geng CHEN |
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| Institution: | Jing (Mechanical and Electrical Engineering ,Wuhan University of Technology, Wuhan 430070,China) |
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| Abstract: | In order to study the effect of screw speed on the bolt tightening characteristics,Multi-functional bolt fastening analysis system is used to analyse the fastener torque-clamping force test,through the test and analysis results show that the friction coefficient increases with the increase of screw speed and decreases and tends to be stable.At the same time,the friction coefficient is the main factor of affecting the torque coefficient,torque coefficient is increasing function of the friction coefficient,in a certain range,the torque coefficient and friction coefficient with increasing trend.In the process of fasteners,the friction can produce high temperature,temperature variation is an important factor in the friction coefficient change. |
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| Keywords: | bolt frictional coefficient axial preload tightening torque tightening speed |
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