发明申请
US20130000939A1 HYDRAULIC PERCUSSIVE ARRANGEMENT, PISTON GUIDE AND DRILLING RIG 有权
液压式安装,活塞导轨和钻孔机

  • 专利标题: HYDRAULIC PERCUSSIVE ARRANGEMENT, PISTON GUIDE AND DRILLING RIG
  • 专利标题(中): 液压式安装,活塞导轨和钻孔机
  • 申请号: US13261412
    申请日: 2011-03-22
  • 公开(公告)号: US20130000939A1
    公开(公告)日: 2013-01-03
  • 发明人: Per Jonsson
  • 申请人: Per Jonsson
  • 优先权: SE1050316-7 20100401
  • 国际申请: PCT/SE11/50313 WO 20110322
  • 主分类号: B25D9/12
  • IPC分类号: B25D9/12 B25D17/06
HYDRAULIC PERCUSSIVE ARRANGEMENT, PISTON GUIDE AND DRILLING RIG
摘要:
The present invention relates to a hydraulic percussive arrangement comprising a displaceable arrangement (1) in a casing (11), in which casing (11) the following are arranged at the displaceable arrangement (1): a first chamber (5) connected to a return line (7) for hydraulic oil, a bushing (6) on a first side of the first chamber (5) and separated from the first chamber (5) by a first gap (12) along the displaceable arrangement (1), and a second chamber (2) with a higher pressure of hydraulic oil than that of the first chamber (5) and arranged on a second side of the first chamber (5), separated from the first chamber (5) by a second gap (4) along the displaceable arrangement (1). According to the invention, a third chamber (8) is fixed arranged between the second gap (4) and the first chamber (5) and the third chamber (8) is connected to the first chamber (5) not only by a first passage (14) but also by a third gap (9) along the displaceable arrangement (1). The invention relates also to a piston guide in such a hydraulic percussive arrangement and to a drilling rig with such a percussive arrangement.
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