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公开(公告)号：EP0235102A1
公开(公告)日：1987-09-02
申请号：EP87850017.2
申请日：1987-01-22
发明人： Adman, Nils Gösta
IPC分类号： B25B23/145 , F16J15/00
CPC分类号： B25B23/1453 , B25B21/02 , Y10S277/908 , Y10S277/91
摘要： A hydraulic torque impulse generator comprises a motor rotated drive member (16) including a fluid chamber (18) into which the rear end portion (19) of an output spindle (21) extends to receive torque impulses generated in said fluid chamber (18). The rear end portion (19) of the output spindle (21) carries a radially sliding vane (23) for cooperation with the fluid chamber (18) such that a high pressure compartment and a low pressure compartment are accomplished during a limited portion of the relative rotation between the drive member (16) and the output spindle (21). A seal barrier (43-50) around the output spindle (21) prevents fluid leakage from the fluid chamber (18). The seal barrier comprises a clearance seal (43) between the fluid chamber end wall (38) and a low pressure area which is sealed off to the atmosphere by low pressure seal rings (47, 48, 60). A piston (46, 64) is arranged to compensate for temperature related volume changes in the hydraulic fluid, and to ensure a substantially constant nominal pressure within the fluid chamber (18).
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公开(公告)号：EP0080445B1
公开(公告)日：1987-03-04
申请号：EP82850226.0
申请日：1982-11-09
IPC分类号： B25B23/145
CPC分类号： B25B21/008 , B25B23/0078 , B25B23/145
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公开(公告)号：EP0194983A2
公开(公告)日：1986-09-17
申请号：EP86850088.5
申请日：1986-03-11
摘要： A riveting device for the assemblage of two or more sheet metal sections (A, B) of a structure comprising a working unit (1 4 ) operable on one side of the sections (A, B) to be assembled and a clamping and bucking unit (26) operable one the opposite side of the sections. Both units - (14, 26) comprise clamping means (16 and 31, 62, 72) respectively, by which the sections (A, B) are clamped together during the entire working cycle in each rivet position, i.e. during hole making, seal compound application, rivet insertion and rivet upsetting. The clamping means of the bucking unit (26) comprises a head (62; 90), one or more low inertia contact elements (72; 94) and a resilient impact absorbing means (66; 101, 102) provided between the contact element or elements (72; 94) and the head (62; 90). The combination of a low inertia contact element and a resilient impact absorbing means provides a solution to the problem of reducing the extremely high contact forces generated at each blow from the riveting tool between the clamping means on the bucking side and .the sheet metal sections (A, B). Deformation of the sections (A, B) due to such high forces is thereby avoided.
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公开(公告)号：EP0185639A2
公开(公告)日：1986-06-25
申请号：EP85850405.3
申请日：1985-12-19
IPC分类号： B25B21/02
CPC分类号： B25B23/1453 , B25B21/02 , B25B21/026
摘要： 57 A hydraulic torque impulse tool, comprising an inertia drive member (10;110) which is rotated by a motor and which includes a fluid chamber (19;119), and a seal and torque transmitting mechanism (30;130) which is arranged to divide the fluid chamber (19;119) into two compartments (38, 39; 138, 139) during a short interval of the relative rotation between the drive member (10;110) and the output spindle (11;111). A leaf spring valve (72; 171, 172) is arranged to control the flow through a bypass passage (70; 170) interconnecting the two fluid chamber compartments (38, 39; 138, 139). The leaf spring valve (72; 171, 172) which by its shape is pretensioned toward open condition automatically occupies the open condition as the difference in pressure between the fluid chamber compartments is low and a closed condition as this difference exceeds a certain level.
摘要翻译： 57.一种液压扭矩冲击工具，包括由马达旋转并且包括流体室（19; 119）的惯性驱动构件（10; 110），以及布置在其中的密封件和扭矩传递机构（30; 130） 在驱动构件（10; 110）和输出主轴（11; 111）之间的相对旋转的短间隔期间将流体室（19; 119）分成两个隔间（38,39; 138,139）。 片簧阀（72; 171,172）布置成控制通过互连两个流体室隔室（38,39; 138,139）的旁路通道（70; 170）的流动。 由于其形状被预张紧到打开状态的板簧阀（72; 171,172）在流体室隔室之间的压力差低时自动地占据打开状态，并且当该差异超过特定水平时，该弹簧阀被关闭。
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公开(公告)号：EP0171374A1
公开(公告)日：1986-02-12
申请号：EP85850212.3
申请日：1985-06-19
IPC分类号： E21B4/14
CPC分类号： E21B4/14
摘要： Pressurized water is used to operate a percussive down-the-hole drill and the spent motive fluid is used as a flushing fluid. A rear cylinder chamber (24) is constantly pressurized and a valve (28) controls the inletfrom the chamber (24) to a bore (23) through the piston hammer (21). A valve (42) controls the outlet from the front cylinder chamber (26) to a flushing channel (38) in the drill bit (21). A check valve (45) controls the outlet from the bore (23) to the front cylinder chamber (26).
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公开(公告)号：EP0010532B1
公开(公告)日：1985-01-30
申请号：EP79850095.5
申请日：1979-10-18
IPC分类号： B25D9/00
CPC分类号： B25D9/26 , B25D9/145 , Y10S173/04
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18.发明授权Method of rock bolting and a device comprising an expansible rock bolt and an installation device therefor 失效岩石压裂方法和包含可膨胀岩石螺栓的装置及其安装装置
公开(公告)号：EP0047727B1
公开(公告)日：1984-12-05
申请号：EP81850152.0
申请日：1981-09-08
CPC分类号： E21D21/004 , E21D20/00 , E21D21/0073
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公开(公告)号：EP0126041A1
公开(公告)日：1984-11-21
申请号：EP84850018.7
申请日：1984-01-18
摘要： A power operated percussion tool in which a shoulder (28) in the tool housing (10,17) defines a rear rest position for a working implement (12) attached tothetool, and in which an energy absorbing bias unit (23, 31) is arranged to resiliently load the working implement (12) toward the rest position. The bias unit (23, 31) comprises a spring (23) and a shock wave mitigating ring assembly (31) and acts between a rearwardly facing shoulder (22) in the housing (10, 17) and a forwardly facing shoulder (30) on the working implement (12). The ring assembly (31) includes two spring steel rings (32, 33) formed with mating conical contact surfaces for transforming axial load variations into radial deformation of the rings (32, 33).
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20.发明公开A rock drilling apparatus and a method of optimizing percussion rock drilling 失效Gesteinbohrvorrichtung und Verfahren zum Optimieren von Schlagbohren。
公开(公告)号：EP0112810A2
公开(公告)日：1984-07-04
申请号：EP83850339.9
申请日：1983-12-19
CPC分类号： B25D17/245 , B25D9/12 , B25D9/26 , B25D2250/221 , E21B44/02 , E21B45/00
摘要： The impact velocity and impact frequency of the hammer piston of a percussion rock drill are varied in incremental steps in order to find the maximum penetration rate. The frequency and impact velocity are so varied that the impact power is kept substantially constant all the time. A micro-computer is used to control the process.
摘要翻译： 打击乐凿岩机锤击活塞的冲击速度和冲击频率为了找到最大穿透速度，以增量步进进行。 频率和冲击速度是如此变化，使得冲击功率始终保持基本恒定。 微型计算机用于控制过程。
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