DE68909861D1 - Hydraulisches Schlagwerkzeug. - Google Patents

Hydraulisches Schlagwerkzeug.

Info

Publication number
DE68909861D1
DE68909861D1 DE89113702T DE68909861T DE68909861D1 DE 68909861 D1 DE68909861 D1 DE 68909861D1 DE 89113702 T DE89113702 T DE 89113702T DE 68909861 T DE68909861 T DE 68909861T DE 68909861 D1 DE68909861 D1 DE 68909861D1
Authority
DE
Germany
Prior art keywords
striking tool
hydraulic striking
hydraulic
tool
striking
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.)
Expired - Fee Related
Application number
DE89113702T
Other languages
English (en)
Other versions
DE68909861T2 (de
Inventor
Takanobu Yamanaka
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.)
Nippon Pneumatic Manufacturing Co Ltd
Original Assignee
Nippon Pneumatic Manufacturing 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 Nippon Pneumatic Manufacturing Co Ltd filed Critical Nippon Pneumatic Manufacturing Co Ltd
Publication of DE68909861D1 publication Critical patent/DE68909861D1/de
Application granted granted Critical
Publication of DE68909861T2 publication Critical patent/DE68909861T2/de
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
    • 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
    • B25D9/145—Control devices for the reciprocating piston for hydraulically actuated hammers having an accumulator
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Catching Or Destruction (AREA)
  • Fluid-Damping Devices (AREA)
DE89113702T 1988-07-26 1989-07-25 Hydraulisches Schlagwerkzeug. Expired - Fee Related DE68909861T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63186349A JPH0236080A (ja) 1988-07-26 1988-07-26 衝撃動装置

Publications (2)

Publication Number Publication Date
DE68909861D1 true DE68909861D1 (de) 1993-11-18
DE68909861T2 DE68909861T2 (de) 1994-02-10

Family

ID=16186802

Family Applications (1)

Application Number Title Priority Date Filing Date
DE89113702T Expired - Fee Related DE68909861T2 (de) 1988-07-26 1989-07-25 Hydraulisches Schlagwerkzeug.

Country Status (11)

Country Link
US (1) US4945998A (de)
EP (1) EP0352742B1 (de)
JP (1) JPH0236080A (de)
KR (1) KR920007459B1 (de)
CN (1) CN1018253B (de)
AU (1) AU607343B2 (de)
DD (1) DD285569A5 (de)
DE (1) DE68909861T2 (de)
FI (1) FI893560A (de)
NO (1) NO169219C (de)
RU (1) RU1797649C (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5064005A (en) * 1990-04-30 1991-11-12 Caterpillar Inc. Impact hammer and control arrangement therefor
CA2058659C (en) * 1991-01-08 2001-02-20 Michael Richard Davies Cyclic hydraulic actuator
US5398772A (en) * 1993-07-01 1995-03-21 Reedrill, Inc. Impact hammer
US5893419A (en) * 1997-01-08 1999-04-13 Fm Industries, Inc. Hydraulic impact tool
US6491114B1 (en) 2000-10-03 2002-12-10 Npk Construction Equipment, Inc. Slow start control for a hydraulic hammer
US7032683B2 (en) * 2001-09-17 2006-04-25 Milwaukee Electric Tool Corporation Rotary hammer
SE527921C2 (sv) * 2004-10-20 2006-07-11 Atlas Copco Rock Drills Ab Slagverk
SE535068C2 (sv) 2010-04-01 2012-04-03 Atlas Copco Rock Drills Ab Bergborrmaskin och användning därav för att förhindra uppkomst och spridning av kavitationsbubblor
ES2703124T3 (es) * 2013-12-18 2019-03-07 Nippon Pneumatic Mfg Herramienta accionada por impacto
CN105916634B (zh) * 2014-01-30 2017-08-25 古河凿岩机械有限公司 液压式冲击装置
JP6495672B2 (ja) * 2015-01-30 2019-04-03 古河ロックドリル株式会社 液圧式打撃装置、並びにバルブタイミングの切換方法およびバルブポートの設定方法
US10363651B2 (en) * 2015-09-28 2019-07-30 Caterpillar Inc. Hammer assembly
US10562165B2 (en) * 2016-04-10 2020-02-18 Caterpillar Inc. Hydraulic hammer
CN110023571B (zh) * 2016-11-17 2021-07-13 桩腾公司 打桩机的驱动缸和打桩机
CN110439455B (zh) * 2019-06-27 2021-05-14 崔子阳 一种凿岩设备的工作装置
KR102317232B1 (ko) * 2020-01-08 2021-10-22 주식회사 현대에버다임 유압 브레이커

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990351A (en) * 1972-03-10 1976-11-09 Atlas Copco Aktiebolag Pneumatic impact device
US3925985A (en) * 1973-01-09 1975-12-16 Rapidex Inc Impact actuator
JPS5432192B2 (de) * 1975-03-18 1979-10-12
SE445434B (sv) * 1983-08-01 1986-06-23 Atlas Copco Ab Vibrationsdempat tryckfluiddrivet slagverk

Also Published As

Publication number Publication date
EP0352742A3 (de) 1991-05-29
NO893023D0 (no) 1989-07-25
EP0352742A2 (de) 1990-01-31
KR900001950A (ko) 1990-02-27
JPH0236080A (ja) 1990-02-06
FI893560A (fi) 1990-01-27
EP0352742B1 (de) 1993-10-13
NO169219C (no) 1992-05-27
DE68909861T2 (de) 1994-02-10
FI893560A0 (fi) 1989-07-25
AU607343B2 (en) 1991-02-28
AU3888789A (en) 1990-02-01
US4945998A (en) 1990-08-07
NO169219B (no) 1992-02-17
KR920007459B1 (ko) 1992-09-03
CN1018253B (zh) 1992-09-16
NO893023L (no) 1990-01-29
RU1797649C (ru) 1993-02-23
DD285569A5 (de) 1990-12-19
CN1045551A (zh) 1990-09-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee