复合式液压动力头的设计  

Design of Compound Hydraulic Power Head

作　　者：陈晓东 Chen Xiaodong(Chongqing Copolyforce Engineering Plastics Co.,Ltd.,Chongqing Research Institute,China Coal Technology and Engineering Group,Chongqing 400037,China)

机构地区：[1]中煤科工集团重庆研究院有限公司重庆科聚孚工程塑料有限责任公司

出　　处：《煤矿机械》2019年第12期6-8,共3页Coal Mine Machinery

摘　　要：通过对液压钻机动力头载荷传递规律、钻杆加接方式分析,结合2种动力头优点,提出复合式液压动力头。该动力头利用卡盘实现钻杆加接,主动钻杆完成钻进栽荷传递,具有单位直径钻进栽荷大的特点,克服了配油套泄漏大、钻进掉速以及肢套寿命低的缺点,既能高速钻进,也可实现冲击钻进,提高了动力头性能。Based on the analysis of the load transfer law of the power head and the connection mode of the drill pipe in hydraulic drilling rig,combined the advantages of two power heads,put forward the composite hydraulic power head structure.The power head realizes the drill pipe connection by the chuck and the drilling load transfer by the active drill pipe,has the characteristic that the unit diameter drilling load is large.It avoids the defects of large leakage of oil distribution sleeve,drop of drilling speed and low life of the rubber sleeve,and can not only drill at high speed,but also realize the impact drilling,and improve the performance of the power head.

关 键 词：液压钻机 动力头 主动钻杆 胶套卡盘 

分 类 号：TD421.25[矿业工程—矿山机电]