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    • 1. 发明公开
    • Rock drilling device
    • 凿岩设备
    • EP0565500A1
    • 1993-10-13
    • EP93850055.0
    • 1993-03-23
    • ATLAS COPCO ROCKTECH AB
    • Rodert, JörgenAndersson, Kurt
    • E21B1/04E21B31/113
    • E21B31/113B25D2250/171E21B1/02
    • s7 Rock drilling device comprising a backhammer unit (10) in which a hammer piston (9) is movable to-and-fro for automatically exposing a tube string (4) to impacts in a direction away from a drill bit (8) in the tube string. The backhammer unit comprises a housing (13) and a springloaded tube part (14). The housing and the tube part form between them a first valve (16) and a second valve (17). At drilling the first valve which contols the supply of driving medium to said hammer piston is closed and the second valve which controls the flushing medium flow is open. At backwards feeding of the rock drilling machine (2) along the feed beam (1) with a force which exceeds a predetermined value the first valve is open and the second valve is closed.
    • s7,包括锤击单元(10)的钻岩装置,锤击活塞(9)可在其中来回移动以自动暴露管柱(4)以沿远离钻头(8)的方向 管串。 后锤单元包括壳体(13)和弹簧加载管部分(14)。 壳体和管部分在它们之间形成第一阀(16)和第二阀(17)。 在钻孔时,控制驱动介质向所述锤活塞的供应的第一阀关闭,并且控制冲洗介质流动的第二阀打开。 在凿岩机(2)沿着进给梁(1)以超过预定值的力向后进给时,第一阀打开并且第二阀关闭。
    • 3. 发明公开
    • Drill string component
    • Bohrgestängeelement。
    • EP0571346A1
    • 1993-11-24
    • EP93850095.6
    • 1993-04-30
    • ATLAS COPCO ROCKTECH AB
    • Ekwall, BerndtPeterson, MartinAndersson, Kurt
    • E21B17/18
    • E21B17/07E21B17/18
    • Drill string component for use at drilling with a liquid driven down-the-hole drilling machine (1) comprising three coaxial tubes (2,4,6) for forming channels for supply of driving medium to the down-the-hole drilling machine, return of the driving medium after it has done its work and supply of flushing medium to the bore hole. The outer tube (2) of the drill string component is provided with a first end piece (7) which is axially displaceable relative to the outer tube and axially lockable relative to the outer tube in an outer position so that the inner tubes (4,6) are protected against damage when the drill string component is not connected with another drill string component, the hammer device (1) or a rotary device (9) for rotation of the drill string.
    • 用于钻井的钻柱组件,其用液体驱动的下钻孔机(1),包括用于形成用于向下钻孔机提供驱动介质的通道的三个同轴管(2,4,6) 驱动介质在完成其工作并将冲洗介质供应到钻孔之后返回。 钻柱组件的外管(2)设置有第一端件(7),该第一端件(7)可相对于外管轴向移动并且在外部位置可相对于外管轴向锁定,使得内管 6)当钻柱组件未与另一个钻柱组件,锤装置(1)或用于旋转钻柱的旋转装置(9)连接时受到保护。
    • 7. 发明公开
    • Hammer device
    • Schlagapparat。
    • EP0578623A2
    • 1994-01-12
    • EP93850106.1
    • 1993-05-18
    • ATLAS COPCO ROCKTECH AB
    • Andersson, Kurt
    • B25D9/14
    • B25D9/145B25D9/18B25D9/20
    • Hammer device comprising a machine housing (1) with a hammer piston (2) movable to-and-fro. The movement to-and-fro of the hammer piston is controlled by a valve body (6) movable to-and-fro in the machine housing. In order to speed up the turning of the hammer piston at its rear end position the machine housing is provided with a room (10) which by the hammer piston is separated from connection with the valve body (6) at the same time as the rear end surface (5) is supplied with pressure fluid via a connection (11) opened by the hammer piston to the pressure source (8) when the hammer piston approaches its rear end position.
    • 锤装置包括具有可往复运动的锤活塞(2)的机壳(1)。 锤式活塞的往复运动由机体(6)在机械壳体内可以往复移动的方式控制。 为了加速锤式活塞在其后端位置的转动,机器壳体设有一个房间(10),在室内与锤体活塞与阀体(6)的连接分离,与后端 当锤活塞接近其后端位置时,端面(5)经由由锤活塞打开的连接(11)被供应到压力源(8)。