超前巷道退锚机器人关键技术研究

Research on Key Technologies of Anchor Removal Robot in Advance Roadways

  • 摘要: 针对矿山开采中现有退锚工艺存在的现场操作人员多、作业效率低、安全性差等问题,提出了一种应用于超前巷道的端头支架固定式退锚机器人。在分析退锚机拆除和高压水射流切割这两种退锚工艺的基础上,结合退锚作业的实际需求,研究并设计了退锚机器人的运动机构、退锚执行机构,进行了剪切机构对锁具的破断力验算,并采用增压器的方案有效提升了破断力;研究并设计了退锚机器人的液压系统和控制系统,分别介绍了系统的组成以及系统功能的实现。井下现场试验表明,所设计机器人具备可远程操控、代替人工现场操作实现锚具定位与剪切的能力,单根锚索退出作业时间缩短至3分钟,退锚作业效率显著提升,为煤矿井下锚具支护拆除作业提供了装备支撑。

     

    Abstract: Aiming at the problems of high manpower demand, low operational efficiency, and poor safety in existing anchor retraction processes in mining, this paper proposes an anchor removal robot fixed on the end-support for advance roadways. Based on an analysis of two current retraction methods—mechanical dismantling and high-pressure water jet cutting—and in consideration of the practical requirements for anchor retraction operations, the motion mechanism and the retraction execution mechanism of the robot were studied and designed. A verification calcu-lation of the shearing mechanism's breaking force on the locking device was conducted, and the adoption of a pressure intensifier effectively increased the breaking force. The hydraulic system and control system of the robot were also designed, with the composition and functional implementation of each system described accordingly. Underground field tests demonstrated that the developed robot can be operated remotely, replacing manual on-site anchor positioning and shearing. The time required to retract a single anchor cable was reduced to 3 minutes, significantly improving retraction efficiency. This work provides equipment support for the removal of anchor support in underground coal mines.

     

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