Invention Grant
- Patent Title: Method and apparatus for controlling rock drilling
- Patent Title (中): 控制岩石钻孔的方法和装置
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Application No.: US13380545Application Date: 2010-05-28
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Publication No.: US09033065B2Publication Date: 2015-05-19
- Inventor: Jarno Viitaniemi , Vesa Peltonen , Markus Saarela , Juho Seppälä
- Applicant: Jarno Viitaniemi , Vesa Peltonen , Markus Saarela , Juho Seppälä
- Applicant Address: FI Tampere
- Assignee: Sandvik Mining and Construction Oy
- Current Assignee: Sandvik Mining and Construction Oy
- Current Assignee Address: FI Tampere
- Agency: Morgan, Lewis & Bockius LLP
- Priority: WOPCT/FI2009/050579 20090626
- International Application: PCT/FI2010/050437 WO 20100528
- International Announcement: WO2010/149839 WO 20101229
- Main IPC: E21B44/04
- IPC: E21B44/04 ; E21B44/02
Abstract:
Method and apparatus for controlling rock drilling with a percussion device belonging to a rock drill to deliver stress waves to rock through a tool by pushing the tool against the rock by means of a feed motor and rotating simultaneously the tool by means of a rotation motor, whereby the maximum feed force is determined, pressure medium is supplied to the feed motor and to the rotation motor and the feed force is controlled according to the drilling conditions. The feed force is controlled on the basis of the feed speed and the rotation torque. The apparatus has a load control valve which controls the feed.
Public/Granted literature
- US20120097449A1 Method And Apparatus For Controlling Rock Drilling Public/Granted day:2012-04-26
Information query
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