喷油嘴紧帽轴力测试及拧紧工艺研究  

Test of Axial Force in Nozzle Cap Nut and Technique Research of Tightening Process

作　　者：张武凯[1,2] 夏兴兰[2] 吴东兴[2] 卜安珍[2] 顾力强[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030 [2]中国一汽无锡油泵油嘴研究所,江苏无锡214063

出　　处：《现代车用动力》2010年第4期48-50,57,共4页Modern Vehicle Power

摘　　要：研究了扭矩法和扭矩-转角法两种紧固件装配方法及其轴力散差,对采用扭矩法装配喷油嘴紧帽的某国产喷油器进行了喷油嘴紧帽轴力测试,得到其轴力散差情况,根据扭矩法测试结果,设计扭矩-转角法装配工艺并进行测试,测试结果表明,采用扭矩-转角法装配喷油嘴紧帽可减少其轴力散差。The torque method and torque-rotary angle method in bolt assembly process and the dispersion of the axial force are studied.The axial force test in nozzle cap nut which is assembled with torque method is made,and the dispersion of axial force is obtained.Based on the result obtained by torque method,torque-rotary angle method assembly technique is designed and the axial force is meas-ured.The measured results show that the dispersion of axial force is reduced by torque-rotary angle assembly technique.

关 键 词：喷油嘴紧帽 轴力 测试 拧紧工艺 

分 类 号：TK423.8[动力工程及工程热物理—动力机械及工程]