ES2044995T5 - Herramienta hidraulica de impacto. - Google Patents

Herramienta hidraulica de impacto.

Info

Publication number
ES2044995T5
ES2044995T5 ES88105471T ES88105471T ES2044995T5 ES 2044995 T5 ES2044995 T5 ES 2044995T5 ES 88105471 T ES88105471 T ES 88105471T ES 88105471 T ES88105471 T ES 88105471T ES 2044995 T5 ES2044995 T5 ES 2044995T5
Authority
ES
Spain
Prior art keywords
oil
pressure
piston
tool
impact tool
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 - Lifetime
Application number
ES88105471T
Other languages
English (en)
Other versions
ES2044995T3 (es
Inventor
Hiroshi Terada
Hiroshi Okada
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8198864&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2044995(T5) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nippon Pneumatic Manufacturing Co Ltd filed Critical Nippon Pneumatic Manufacturing Co Ltd
Publication of ES2044995T3 publication Critical patent/ES2044995T3/es
Application granted granted Critical
Publication of ES2044995T5 publication Critical patent/ES2044995T5/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
    • 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
    • B25D2209/007—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 not coaxial with the piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/371—Use of springs
    • B25D2250/375—Fluid springs

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)

Abstract

UNA HERRAMIENTA DE IMPACTO PARA GOLPEAR UNA HERRAMIENTA (16) TAL COMO UN ESOCPLO INCLUY UN PISTON (18) MONTADO EN UN CILINDRO (15). LAS CAMARAS SUPERIOR (25), MEDIA (28) E INFERIOR (29) ESTAN FORMADOS ENTRE EL MISMO. EL ACEITE A PRESION ES ALIMENTADO DENTRO Y DESCARGADO DESDE LAS CAMARAS MEDIA E INFERIOR PARA HACER OSCILAR EL PISTON EN EL CILINDRO BAJO LA PRESION DEL ACEITE. DURANTE EL GOLPE HACIA ABAJO DEL PISTON, LA PRESION DEL ACEITE EN LA CAMARA INFERIOR ES MANTENIDA BAJA. PERO JUSTAMENTE ANTES DE QUE GOLPEE LA HERRAMIENTA, LA PRESION DEL ACEITE ES ADAPTADA PARA INCREMENTARSE Y ASI EVITAR LO QUE SE LLAMA CAVITACION O EVITAR EL CRECIMIENTO REPENTINO DE LAS BURBUJAS DE AIRE MEZCLADAS EN EL ACEITE A PRESION EN LA CAMARA INFERIOR DEBIDO A UNA FUERTE CAIDA EN LA PRESION DEL ACEITE LA CUAL ESTA CAUSADA POR EL REBORTE DEL PISTON DEPUES DEL GOLPE DE LA HERRAMIENTA.
ES88105471T 1988-04-06 1988-04-06 Herramienta hidraulica de impacto. Expired - Lifetime ES2044995T5 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88105471A EP0335994B2 (en) 1988-04-06 1988-04-06 Hydraulic impact tool

Publications (2)

Publication Number Publication Date
ES2044995T3 ES2044995T3 (es) 1994-01-16
ES2044995T5 true ES2044995T5 (es) 1996-10-16

Family

ID=8198864

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88105471T Expired - Lifetime ES2044995T5 (es) 1988-04-06 1988-04-06 Herramienta hidraulica de impacto.

Country Status (4)

Country Link
US (1) US4852664A (es)
EP (1) EP0335994B2 (es)
DE (1) DE3882971T3 (es)
ES (1) ES2044995T5 (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03208215A (ja) * 1990-01-10 1991-09-11 Izumi Seiki Seisakusho:Kk 油圧式ブレーカー
CN1035245C (zh) * 1993-06-07 1997-06-25 株式会社水山重工业 使用气体和油压的冲击机构
US5398772A (en) * 1993-07-01 1995-03-21 Reedrill, Inc. Impact hammer
IT1270226B (it) * 1994-06-15 1997-04-29 Giordano S R L Off Dispositivo di distribuzione di olio in pressione e martello idraulico dotato di tale dispositivo
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
WO2005038147A2 (en) * 2003-10-14 2005-04-28 Astec Industries, Inc. Scaling assembly
SE528033C2 (sv) * 2004-03-12 2006-08-15 Atlas Copco Constr Tools Ab Hydraulslagverk
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
US8733468B2 (en) * 2010-12-02 2014-05-27 Caterpillar Inc. Sleeve/liner assembly and hydraulic hammer using same
SE538675C2 (sv) 2012-02-17 2016-10-18 Construction Tools Pc Ab Slidventil, slaganordning & metod
DE102012208891A1 (de) * 2012-05-25 2013-11-28 Robert Bosch Gmbh Pneumatische Schlagwerkvorrichtung
SE536562C2 (sv) * 2012-06-28 2014-02-25 Atlas Copco Rock Drills Ab Anordning och förfarande vid en hydraulisk bergborrmaskin jämte bergborrmaskin
SE536903C2 (sv) * 2012-11-28 2014-10-21 Atlas Copco Rock Drills Ab Anordning vid fördelningsventil för en bergborrmaskin och bergborrmaskin
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
FR3037345B1 (fr) * 2015-06-11 2017-06-23 Montabert Roger Appareil hydraulique a percussions
KR102317232B1 (ko) * 2020-01-08 2021-10-22 주식회사 현대에버다임 유압 브레이커

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243118B (de) * 1958-11-17 1967-06-22 Ingbuero Dipl Ing Friedrich He Steuerung fuer hydraulisch betriebene Schlagvorrichtungen, insbesondere fuer handgefuehrte Schlagwerkzeuge mit in einer Fuehrung laengsverschieblich gelagertem Einsteckwerkzeug
US3741316A (en) * 1968-01-16 1973-06-26 Forges Et Atellers De Meudon S Fluid operated percussion tool
US3701386A (en) * 1970-12-11 1972-10-31 Dresser Ind Hydraulic drifter
SE391664B (sv) * 1973-10-23 1977-02-28 Svenska Hymas Ab Anordning vid hydrauliskt drivet slagverktyg
JPS5432192B2 (es) * 1975-03-18 1979-10-12
US4466493A (en) * 1981-12-17 1984-08-21 Hed Corporation Reciprocating linear fluid motor
EP0236721A3 (en) * 1986-03-11 1989-10-25 NITTETSU JITSUGYO CO., Ltd. Hydraulic breaker

Also Published As

Publication number Publication date
EP0335994A1 (en) 1989-10-11
EP0335994B1 (en) 1993-08-04
US4852664A (en) 1989-08-01
DE3882971T2 (de) 1993-11-25
ES2044995T3 (es) 1994-01-16
DE3882971D1 (de) 1993-09-09
EP0335994B2 (en) 1996-06-26
DE3882971T3 (de) 1997-02-06

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