A wheel nut tensioner, which comprises a support plate, a drive shaft, the driving mechanism and the nuts of the shaft, the drive shaft is located in the center of the supporting plate, shaft nuts are uniformly distributed on the supporting plate, the transmission mechanism will drive shaft and nut tightening shaft connected to the drive shaft and the nuts shaft are respectively connected to the support plate is rotated with the nuts of the front end is provided with a tightening head shaft. The present invention by mechanical transmission, electric tools or pneumatic tools driving force balanced transfer to nuts of shaft, when the individual is not on the wheel nut caused by excessive torque, with overload protection or transmission mechanism of skid resistance amplifying function, preventing nut is screwed to force. The invention can effectively improve the assembly stress caused by the single preload wheel nut and the fact that the nut is not screwed to the positive bolt, thereby causing screw thread damage and greatly improving the assembly work efficiency.
【技术实现步骤摘要】
本专利技术涉及一种汽车装配工具,特别是组装汽车轮胎时用于预紧螺母的车轮螺母 预紧器,属汽车
技术介绍
在汽车装配生产线上,需要对汽车轮胎进行预紧。汽车轮胎承担着汽车运行、载重 和安全的重任,轮胎装配性能的优劣,直接关乎着整车运行状态和乘车人员的安全。轮胎安 装时最重要操作环节是控制安装力矩,轮胎安装拧紧时,必须要对车轮螺母进行预紧。车轮 螺母预紧控制,对整车轮胎安装性能的优劣有着直接关系。预紧过程若出现螺母强行拧入, 或单个螺母预紧时操作不当,造成装配应力过大,对下一工序的力矩控制会产生严重的不 良影响。目前,车轮螺母预紧通常是采用气动或电动工具单个预紧,这种传统装配方式存在 的问题是1.容易出现各螺母预紧力不一,或个别螺母预紧力过大;2.螺母未对正螺栓被 强行拧入,导致螺纹损伤;3.装配耗时,工作效率低下。
技术实现思路
本专利技术用于解决上述已有技术之缺陷而提供一种可避免各螺母预紧力不一、且可 以防止预紧力过大的车轮螺母预紧器。本专利技术所称问题是通过以下技术方案解决的一种车轮螺母预紧器,其特别之处是它包括支撑板、驱动轴、传动机构和多个螺母预 紧轴,驱 ...
【技术保护点】
一种车轮螺母预紧器,其特征在于:它包括支撑板(3)、驱动轴(1)、传动机构和多个螺母预紧轴(2),驱动轴位于支撑板中心,螺母预紧轴均布在支撑板上,传动机构将驱动轴和螺母预紧轴传动连接,所述驱动轴和各螺母预紧轴分别与支撑板转动配合,各螺母预紧轴前端设有预紧头(2-1)。
【技术特征摘要】
【专利技术属性】
技术研发人员:董彬,江凤振,姚瑜,赫立松,封增强,李斌,户玉奎,李恒,
申请(专利权)人:长城汽车股份有限公司,
类型:发明
国别省市:13
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