辐照考验管切割专用装置研制

Development of Special Device for Cutting Irradiation Test Tube

为消除棒状辐照考验管在水下径向切割过程中产生的金属飞屑危害及切割位置发生异常变形的影响,提出了旋转挤压式管件切割法;该方法采用伺服电机-蜗轮驱动结构,配合线性可变差动位移传感器(LVDT)控制系统,同时考虑安全措施,设计了旋转式棒束型燃料考验管的切割专用装置。三维建模及仿真分析表明:该装置能够保证棒束型考验管径向切断,且切口处材料朝管内变形,整个切割过程中无切屑产生,可以确保安全地完成辐照后考验管的水下切割。

In order to eliminate the harm of metal flying debris and the influence of abnormal deformation of cutting position in the process of underwater radial cutting of rod-shaped irradiation test pipe,we developed a rotary extrusion pipe cutting method;In this method,we invented a special cutting device for rotating rod bundle fuel test tube by using servo motor-worm gear drive structure,Linear Variable Differential Transformer(LVDT)displacement sensor control system and considering safety measures.The three-dimensional modeling and simulation analysis show that the device can ensure the radial cutting of the rod bundle test tube,the material at the notch deforms towards the tube,and there is no chip in the whole cutting process,which can ensure the safe underwater cutting of the test tube after irradiation.