深孔内壁盲孔刀具优化设计及工艺试验研究

发布时间：2018-03-26 08:10

  本文选题：内盲孔　切入点：深孔　出处：《西安石油大学》2017年硕士论文

【摘要】：石油钻井完井时需要用射孔枪打开油层,内盲孔射孔枪具有良好的定向性和爆破效果。但由于射孔枪属于深孔工件,在深孔内壁处直接进行盲孔加工较难实现,通常会采用在工件外壁打通孔后进行焊堵来得到盲孔,该方法加工的工件会出现焊接处强度不够的问题。本文以深孔内壁盲孔加工刀具为研究对象,以原有深孔内壁盲孔加工系统为基础,通过对其进行优化设计,改善系统的加工性能。基于加工系统设计目标,改进设计加工系统整体结构,通过对系统部分结构进行优化,提高了系统的加工范围。介绍了深孔内壁盲孔加工刀具工作原理,并根据其原理,对刀具整体结构进行优化设计。对刀具内部传动结构进行了改进,详细设计了主运动传动零件结构,并利用有限元分析,分析了该设计结构的强度,同时运用运动仿真,探讨了设计的主运动传动副的合理性。进行深孔内壁盲孔加工试验,研究了加工平台的加工精度,并进行深孔内壁键槽铣削试验,研究了加工刀具的工艺扩展性。通过试验,得到了较好的盲孔精度,并完成了键槽加工,为以后的刀具设计提供了新的思路。
[Abstract]:It is necessary to open the reservoir with perforating gun in oil drilling and completion. The perforating gun with inner blind hole has good directionality and blasting effect. However, because perforating gun belongs to deep hole workpiece, it is difficult to process blind hole directly at the inner wall of deep hole. The blind hole can be obtained by welding after the outer wall of the workpiece is plugged, and the workpiece machined by this method will have the problem of insufficient welding strength. In this paper, the deep hole inner blind hole machining tool is taken as the research object. Based on the original blind hole machining system of deep hole, by optimizing the design, the machining performance of the system is improved. Based on the design goal of the machining system, the whole structure of the machining system is improved, and the partial structure of the system is optimized. The working principle of the deep hole inner blind hole machining tool is introduced, and according to the principle, the overall structure of the tool is optimized, and the internal transmission structure of the tool is improved. The structure of the main moving transmission part is designed in detail, and the strength of the designed structure is analyzed by using finite element analysis. At the same time, the rationality of the designed main motion transmission pair is discussed by using the motion simulation, and the machining test of blind hole in the deep hole inner wall is carried out. The machining accuracy of the machining platform is studied, and the milling test of deep hole inner wall keyway is carried out, and the process expansibility of the machining tool is studied. Through the experiment, a better blind hole precision is obtained, and the keyway machining is completed. It provides a new idea for tool design in the future.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE921.2;TE925.3
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本文编号：1667109