钻机全液压卡盘研究

Study of Full Hydraulic Chuck in Drill

在现有钻机液压卡盘的基础上,应用弹簧夹头夹紧原理,利用双列向心推力轴承,通过设计2个液压活塞,实现卡瓦套的往复移动,从而实现钻杆夹紧与打开的新型液压卡盘,该液压卡盘综合了碟簧式液压卡盘和胶套卡盘的优点,结构紧凑,夹紧力大,自动打开,解决了配油套的泄漏问题,为高速、重载荷钻机的发展解决了技术瓶颈。

On the basis of the analyzing existing drilling rig hydraulic chuck, applicating clamping principle of colleting chuck and double row angular contact bearings. It realizes reciprocating movement of the slip sets and clamp and open of drill pipe by designing two hydraulic pistons and. It has advantages of disc spring chuck and rubber sleeve chuck and compact structure and big clamping force and automatically open, So it has solved the problems of oil distribution and key technology for the development of high speed and heavy load drilling rig.