一种楔形自紧式承压电缆法兰  

A Wedge Self-tightening Flange for Pressing Cable

作　　者：梁小冬 孙野[1] LIANG Xiaodong;SUN Ye(Northwest Institute of Nuclear Technology,Xi＇an 710024,China)

机构地区：[1]西北核技术研究所,陕西西安710024

出　　处：《机械》2018年第5期52-55,共4页Machinery

摘　　要：在某爆炸实验中,爆室与室外的穿线管法兰盘承受管道内部最高16 MPa的瞬时压强,为确保内部电缆在爆炸过程中有很好的抗冲击效果,设计了一种自紧式法兰。先对该自紧式法兰进行结构设计,并对内部楔形块与电缆进行理论受力分析与有限元仿真分析,同时对选用8.8级连接螺栓进行强度校核,最后利用拉力计对该自紧式法兰进行拉力实验,并对理论计算值、仿真值和实验值进行分析。在实际应用中,该穿线管法兰满足了耐压强度要求,达到了预期的抗压效果。In an explosion experiment, a threading flange requires to bear the pressure up to 16 MPa between the burst chamber and the outdoor. In order to ensure that the cable has a good impact effect inside the pipe, then designing a self-tightening flange. In this paper, carrying out the structural design of the self-tightening flange firstly, carrying on the theoretical analysis and finite element analysis of the internal wedge and cable. At the same time, checking the strength of the 8.8 grade connecting bolts. Finally, doing the tensile test and analyzing the theoretical calculation, simulation and experimental values. In the practical application, the threading flange has satisfied the compressive strength requirements and achieved the expected compressive effect.

关 键 词：自紧式法兰 承压电缆 连接螺栓 

分 类 号：TH164[机械工程—机械制造及自动化]