标定螺纹旋合长度对夹紧力的影响研究  

Study on the influence of ultrasonic calibrated length of engagement on clamping force

作　　者：王莉梅 Wang Limei(Geely Automotive Research Institute(Ningbo)Co.,Ltd.,Ningbo 315336,China)

机构地区：[1]吉利汽车研究院(宁波)有限公司,浙江宁波315336

出　　处：《汽车知识》2023年第10期85-87,共3页Auto Know

摘　　要：应用超声波测试方法,研究不同连接副中啮合长度对夹紧力的影响,其中主要是在标定时使用相同螺栓不同螺纹啮合长度对夹紧力标定的影响。通过改变连接副螺栓和夹具螺母的旋合长度(夹持长度不变)进行相应的标定,并分别对其采用扭矩法和扭矩转角法研究不同螺纹旋合长度对接头夹紧力的影响,从而提高试验的准确性和可靠性。Apply ultrasonic testing method to study the effect of engagement length on clamping force in different connection pairs.During calibration,using the same bolt and different thread engagement lengths on the calibration of clamping force.By changing the screwing length of the connecting bolts and fixture nuts(with the clamping length unchanged),corresponding calibration is carried out,and the torque method and torque angle method are used to study the influence of different thread screwing lengths on the clamping force of the joint,thereby improving the accuracy and reliability of the experiment.

关 键 词：超声波标定 螺纹旋合长度 夹紧力 扭矩法 扭矩转角法 

分 类 号：U467[机械工程—车辆工程]