CA2278036A1 - Percussion movement apparatus - Google Patents

Percussion movement apparatus Download PDF

Info

Publication number
CA2278036A1
CA2278036A1 CA002278036A CA2278036A CA2278036A1 CA 2278036 A1 CA2278036 A1 CA 2278036A1 CA 002278036 A CA002278036 A CA 002278036A CA 2278036 A CA2278036 A CA 2278036A CA 2278036 A1 CA2278036 A1 CA 2278036A1
Authority
CA
Canada
Prior art keywords
valve
cylinder
piston
end surfaces
piston hole
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
CA002278036A
Other languages
French (fr)
Other versions
CA2278036C (en
Inventor
Myeong Soo Jang
Il Jae Lee
Kyung Chon Shin
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.)
Soosan Heavy Industries Co Ltd
Original Assignee
Soosan Heavy Industries Co Ltd
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
Application filed by Soosan Heavy Industries Co Ltd filed Critical Soosan Heavy Industries Co Ltd
Publication of CA2278036A1 publication Critical patent/CA2278036A1/en
Application granted granted Critical
Publication of CA2278036C publication Critical patent/CA2278036C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B1/00—Percussion drilling
    • E21B1/38—Hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/16—Valve arrangements therefor
    • B25D9/20—Valve arrangements therefor involving a tubular-type slide valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2209/00—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D2209/005—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously having a tubular-slide valve, which is coaxial with the piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2222/00—Materials of the tool or the workpiece
    • B25D2222/72—Stone, rock or concrete

Landscapes

  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Actuator (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Valve Device For Special Equipments (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)

Abstract

In order to maximize percussion force and reduce the number of components and weight by installing a valve between a piston and a cylinder, the invention provides a percussion movement apparatus which comprises a valve installed between the piston and the cylinder, the valve being constructed to open/close a flow path and organically cooperate with the piston by predetermined movements thereof, the valve having substantially cylindrical overall shape whose both end surfaces which is upper and lower end surfaces thereof with different cross sectional areas, and also the valve including a longitudinal piston hole with multistage sills, a plurality of holes extending rectangularly to the piston hole for communicating the piston hole with exterior, and an annular projection with front and rear peripheral surfaces partially formed on a peripheral surface of the valve, the cylinder being mounted the outside of the valve and including a plurality of cylinder holes for reciprocating the piston; and a rear cover mounted on the rear of the valve and the cylinder, the piston, the cylinder and the valve having a plurality of chambers and a valve switching chamber defined by making a difference in diameter along a longitudinal direction for providing predetermined annular chambers between inner and outer peripheral surfaces thereof into which the fluid can be introduced, and the cylinder including a cylinder block formed with a plurality of fluid passages for inflow/discharge of a working oil.
CA002278036A 1998-07-30 1999-07-19 Percussion movement apparatus Expired - Fee Related CA2278036C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1998-30879 1998-07-30
KR1019980030879A KR100287943B1 (en) 1998-07-30 1998-07-30 Strike

Publications (2)

Publication Number Publication Date
CA2278036A1 true CA2278036A1 (en) 2000-01-30
CA2278036C CA2278036C (en) 2005-11-29

Family

ID=19545803

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002278036A Expired - Fee Related CA2278036C (en) 1998-07-30 1999-07-19 Percussion movement apparatus

Country Status (5)

Country Link
JP (1) JP2000079579A (en)
KR (1) KR100287943B1 (en)
CN (1) CN1112281C (en)
CA (1) CA2278036C (en)
DE (1) DE19935890A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8800425B2 (en) 2006-12-21 2014-08-12 Sandvik Mining And Construction Oy Percussion device

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1366864A1 (en) * 2002-05-31 2003-12-03 Geismar Portable hydraulic power operated impact apparatus, such as a spike driver or tamper tool
SE527921C2 (en) * 2004-10-20 2006-07-11 Atlas Copco Rock Drills Ab percussion
KR100772301B1 (en) * 2006-06-04 2007-11-02 이정호 Easy hydaulic drifter system for tunnel
US8256536B2 (en) * 2009-02-11 2012-09-04 Vermeer Manufacturing Company Backreamer for a tunneling apparatus
CN102493761B (en) * 2011-11-18 2014-04-23 汤建钢 Hydraulic rock digger
EP2845989B1 (en) * 2013-09-09 2015-11-18 Sandvik Intellectual Property AB Shock wave modification in percussion drilling apparatus and method
CN103722702B (en) * 2013-12-27 2015-11-25 中国计量学院 Non-return quantitative constant-pressure injection device
CN110984843B (en) * 2019-12-29 2021-09-10 东台市高科技术创业园有限公司 Hydraulic percussion drill power device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2613538B2 (en) * 1993-05-10 1997-05-28 ヤマモトロックマシン株式会社 Rock drill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8800425B2 (en) 2006-12-21 2014-08-12 Sandvik Mining And Construction Oy Percussion device

Also Published As

Publication number Publication date
CN1112281C (en) 2003-06-25
DE19935890A1 (en) 2000-04-20
JP2000079579A (en) 2000-03-21
CA2278036C (en) 2005-11-29
KR100287943B1 (en) 2001-05-02
CN1247252A (en) 2000-03-15
KR20000010132A (en) 2000-02-15

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20140721