矿用钻机换杆装置及其控制系统设计  

Design of mine-used drilling pipe replacing device and its control system

作　　者：李晓鹏 乔杰 姚亚峰 LI Xiaopeng QIAO Jie YAO Yafeng(CCTEG Xi＇an Research Institute, Xi＇an 710077, China)

机构地区：[1]中煤科工集团西安研究院有限公司,陕西西安710077

出　　处：《工矿自动化》2017年第8期6-10,共5页Journal Of Mine Automation

基　　金：国家科技重大专项项目(2016ZX05045003-002);国家自然科学基金面上项目(51275061);中煤科工集团西安研究院有限公司科技创新项目(2015XAYMS22)

摘　　要：针对目前煤矿坑道钻探施工中因孔位较高、开孔角度大而造成的装卸钻杆操作困难和存在安全隐患的问题,设计了矿用钻机换杆装置及其控制系统。钻机换杆装置与钻机动力头的主动钻杆、夹持器配合动作,用中间加(卸)杆的方式实现钻杆的装卸。控制系统以矿用本质安全兼隔爆型液压控制器为核心,通过脉宽调制(PWM)信号和开关信号分别驱动控制比例电磁阀和换向电磁阀,从而调节油缸的伸缩速度;通过磁致位移传感器将比例电磁阀驱动的油缸伸缩长度信号反馈给控制器,形成油缸伸缩位置闭环控制。试验结果表明,矿用钻机换杆装置能够匹配现有型号钻机,满足大高度或大角度的侧帮钻探施工中的自动装卸钻杆的需求,提高了钻探施工效率和换杆操作的安全性。In view of problems of difficulties and security risks in operation of loading and unloading of drilling pipe caused by high hole position and large hole opening angle in current coal mine tunnel drilling construction,a mine-used drilling pipe replacing device and its control system were designed.The drilling pipe replacing device is used with active drilling pipe of power head of drilling rig and the hold,to achieve loading and unloading of drilling pipe in the middle.The control system takes mine intrinsically safe and flameproof hydraulic controller as the core,and drives control proportional solenoid valve and commutation solenoid valve by PWM signal and switching signal respectively,so as to adjust the expansion and contraction speed of the cylinder.The cylinder telescopic length signal driven by proportional solenoid valve is fed back to controller by magnetostrictive sensor to form closed-loop control of the cylinder telescopic position.The test results show that the mine-used drilling pipe replacing device for drilling rig can match the existing type of drilling rig,and meet the needs of automatic loading and unloading of drilling pipe in the large-height or large-angle sidetrack drilling construction,thus improves the drilling construction efficiency and the safety of the drilling pipe replacing operation.

关 键 词：煤炭开采 钻机 换杆装置 电液控制 自动装卸 

分 类 号：TD421.25[矿业工程—矿山机电]