CA2218674A1 - A hydraulic arrangement for turning the actuator of a rock drilling machine - Google Patents

A hydraulic arrangement for turning the actuator of a rock drilling machine

Info

Publication number
CA2218674A1
CA2218674A1 CA002218674A CA2218674A CA2218674A1 CA 2218674 A1 CA2218674 A1 CA 2218674A1 CA 002218674 A CA002218674 A CA 002218674A CA 2218674 A CA2218674 A CA 2218674A CA 2218674 A1 CA2218674 A1 CA 2218674A1
Authority
CA
Canada
Prior art keywords
actuator
turning
drilling machine
rock drilling
hydraulic arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002218674A
Other languages
French (fr)
Other versions
CA2218674C (en
Inventor
Markku Launiemi
Mikko Huttunen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tamrock Oy
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FI951913A external-priority patent/FI105944B/en
Application filed by Individual filed Critical Individual
Publication of CA2218674A1 publication Critical patent/CA2218674A1/en
Application granted granted Critical
Publication of CA2218674C publication Critical patent/CA2218674C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/003—Machines for drilling anchor holes and setting anchor bolts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Earth Drilling (AREA)

Abstract

The arrangement comprises a pressure medium cylinder (2) provided with two cylinder spaces (2a, 2b) and two pistons (3a, 3b), and a control valve (12).
The control valve (12) can be placed in at least three control positions but in only one at a time. In each control position, the pressure fluid is arranged to affect both cylinder spaces (2a, 2b) of the cylinder (2) such that in the control position concerned, the pistons (3a, 3b) always settle in a certain predefined position.
CA002218674A 1995-04-21 1996-04-18 A hydraulic arrangement for turning the actuator of a rock drilling machine Expired - Fee Related CA2218674C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI951913A FI105944B (en) 1995-04-21 1995-04-21 Hydraulic assembly for rotating rock actuator actuator
FI951913 1995-04-21
PCT/FI1996/000210 WO1996033337A1 (en) 1995-04-21 1996-04-18 A hydraulic arrangement for turning the actuator of a rock drilling machine

Publications (2)

Publication Number Publication Date
CA2218674A1 true CA2218674A1 (en) 1996-10-24
CA2218674C CA2218674C (en) 2007-07-03

Family

ID=38249358

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002218674A Expired - Fee Related CA2218674C (en) 1995-04-21 1996-04-18 A hydraulic arrangement for turning the actuator of a rock drilling machine

Country Status (1)

Country Link
CA (1) CA2218674C (en)

Also Published As

Publication number Publication date
CA2218674C (en) 2007-07-03

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20140422