狭小空间内螺栓自动拧紧方法试验研究  

Experimental Study on Automatic Tightening Method of Bolts in Narrow Space

作　　者：陈翔宇 刘明洋[1,3] 徐志刚 CHEN Xiang-yu;LIU Ming-yang;XU Zhi-gang(State Key Laboratory of Robotics,Shenyang Institute of Automation,Chinese Academy of Science,Shenyang 110016,China;School of Mechanical Engineering and Automation,Northeastern University,Shenyang 110819,China;不详)

机构地区：[1]中国科学院沈阳自动化研究所机器人学国家重点实验室,沈阳110016 [2]东北大学机械工程与自动化学院,沈阳110819 [3]中国科学院机器人与智能制造创新研究院,沈阳110169

出　　处：《组合机床与自动化加工技术》2021年第9期168-171,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金项目(61803367);辽宁省自然科学基金(2019-MS-346)。

摘　　要：航空发动机内部空间狭小,提出一种自动拧紧方法,将拧紧分为一次拧紧过程和二次拧紧过程。针对二次拧紧展开研究,研究扭矩法和扭矩-转角法的加载步长、转动角度和初始力矩对拧紧力矩的影响,验证自动拧紧方法的可行性和力矩一致性,通过对试验结果分析,验证了扭矩-转角法能够提高扭矩稳定性,分步加载方法可以提高螺栓拧紧质量,扭矩-转角法的扭矩值与转动角度之间呈现线性关系,初始扭矩值越小能有效提高扭矩控制精度,扭矩-转角法显著降低扭矩衰减。The internal space of aero-engine is narrow,so an automatic tightening method is proposed.The tightening process is divided into one tightening process and two tightening processes.The influence of loading step,rotation angle and initial torque of torque method and torque angle method on tightening torque is studied,and the feasibility and torque consistency of automatic tightening method are verified.Through the analysis of test results,it is verified that torque angle method can improve torque stability,and step-by-step loading method can improve bolt tightening quality,The smaller the initial torque value is,the higher the torque control accuracy will be.The torque angle method can significantly reduce the torque attenuation.

关 键 词：螺栓连接 拧紧方法 狭小空间 发动机狭小空间 

分 类 号：TH131[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]