火驱点火装置电缆滚筒与注入头自动协同动作液控原理研究与应用

Research and Application of Hydraulic Control Principle of Automatic Collaboration between the Cable Drum and Injection Head of Fire-drive Ignition Device

摘要: 车载移动式火驱点火装置本质上是一种小型连续油管作业装置，该装置未考虑电缆滚筒与注入头的自动协同功能，导致操作难度大。按照滚筒背压法原理对液压系统进行改造，实现了滚筒与注入头的自动协同功能，但电缆的张紧力过大。通过对滚筒进行受力分析，找到电缆张紧力过大的原因，改用滚筒加压法使马达主动做功，减小了电缆张紧力，完美解决了电缆滚筒与注入头的自动协同功能及电缆张紧力的精确控制问题。

Abstract: The vehicle-mounted mobile fire-drive ignition device was essentially a small coiled tubing unit, which was difficult to operate because it did not take into account the automatic collaboration between the cable drum and injection head. According to the principle of “drum back pressure method", the hydraulic system was reformed to realize the automatic collaboration between the drum and injection head, but the tension of cable was too large. The reasons for the excessive cable tension force are found by analyzing the force of the drum. The “drum pressurization method” is used to make the motor work actively, reduce the cable tension force, and perfectly solve the problems of the automatic collaboration function between the drum and the injector and the precise control of cable tension force.