Rock drilling machine and axial bearing
    2.
    发明授权
    Rock drilling machine and axial bearing 失效
    岩石钻机和轴向轴承

    公开(公告)号:US07419015B2

    公开(公告)日:2008-09-02

    申请号:US10541160

    申请日:2003-12-29

    IPC分类号: E21B4/14 E21B1/24 E21B1/38

    摘要: An axial bearing includes a first piston and a second piston. Axial contact surfaces between the pistons are arranged in the same pressure space. The same pressure fluid fed to the axial bearing acts on the contact surfaces and on working pressure surfaces of the pistons. A rock drilling machine is also provided with such an axial bearing.

    摘要翻译: 轴向轴承包括第一活塞和第二活塞。 活塞之间的轴向接触表面布置在相同的压力空间中。 供给轴向轴承的相同的压力流体作用在活塞的接触表面和工作压力表面上。 凿岩机还具有这种轴向轴承。

    Impact device
    3.
    发明授权
    Impact device 失效
    冲击装置

    公开(公告)号:US07013996B2

    公开(公告)日:2006-03-21

    申请号:US10749381

    申请日:2004-01-02

    IPC分类号: E21B1/28

    CPC分类号: E21B1/02

    摘要: An impact device for a rock drill. The rock drill includes a tool and a mechanism for delivering a stress pulse to the tool. That mechanism includes an impact element supported to a frame of the drill, and a mechanism for subjecting the impact element to stress and thereafter releasing the impact element suddenly from the stress, whereupon stored stress energy in the impact element is discharged in the form of a stress pulse directed at the tool.

    摘要翻译: 凿岩机的冲击装置。 凿岩机包括一个工具和一个向工具传递应力脉冲的机构。 该机构包括支撑在钻机的框架上的冲击元件,以及用于使冲击元件受到应力并随后将冲击元件从应力突然释放的机构,于是冲击元件中存储的应力能量以 针对工具的应力脉冲。

    Percussion device with a control valve for two alternately striking pistons
    4.
    发明授权
    Percussion device with a control valve for two alternately striking pistons 失效
    具有两个交替冲击活塞的控制阀的打击乐器

    公开(公告)号:US07464635B2

    公开(公告)日:2008-12-16

    申请号:US10840640

    申请日:2004-05-07

    IPC分类号: F01L25/04 F01L25/08

    CPC分类号: B25D9/18

    摘要: The invention relates to a percussion device comprising two percussion pistons alternately making a percussion motion and a control valve for controlling the percussion pistons. The control valve (7) comprises a slide (8) affected by a force so that the slide is generally in a first position, but moves at the end of the percussion motion of the first percussion piston from the first position to a second position and correspondingly back to the first position at the end of the percussion motion of the second percussion piston (4).

    摘要翻译: 本发明涉及一种包括两个冲击活塞交替地进行冲击运动的冲击装置和一个用于控制冲击活塞的控制阀。 控制阀(7)包括受力的滑动件(8),使得滑动件大致处于第一位置,但是在第一冲击活塞的冲击运动结束时从第一位置移动到第二位置,并且 相应地在第二冲击活塞(4)的敲击运动结束时回到第一位置。

    Rock drilling machine and axial bearing
    5.
    发明申请
    Rock drilling machine and axial bearing 失效
    岩石钻机和轴向轴承

    公开(公告)号:US20060213690A1

    公开(公告)日:2006-09-28

    申请号:US10541160

    申请日:2003-12-29

    IPC分类号: E21B10/36

    摘要: The invention relates to an axial bearing and to a rock drilling machine pro-vided with an axial bearing. The axial bearing (100) comprises a first piston (20) and a second piston (21). Axial contact surfaces (60, 43a) between the pistons (20, 21) are arranged in the same pressure space (28). The same pressure fluid fed to the axial bearing acts on the contact surfaces and on working pressure surfaces of the pistons.

    摘要翻译: 本发明涉及一种轴向轴承和与轴向轴承一起提供的凿岩机。 轴向轴承(100)包括第一活塞(20)和第二活塞(21)。 活塞(20,21)之间的轴向接触表面(60,43a)设置在相同的压力空间(28)中。 供给轴向轴承的相同的压力流体作用在活塞的接触表面和工作压力表面上。