EP1136189A3 - Percussive tool with fluid-pressure drive - Google Patents

Percussive tool with fluid-pressure drive Download PDF

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Publication number
EP1136189A3
EP1136189A3 EP01105981A EP01105981A EP1136189A3 EP 1136189 A3 EP1136189 A3 EP 1136189A3 EP 01105981 A EP01105981 A EP 01105981A EP 01105981 A EP01105981 A EP 01105981A EP 1136189 A3 EP1136189 A3 EP 1136189A3
Authority
EP
European Patent Office
Prior art keywords
stroke
empty
fluid
percussion piston
percussion
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
EP01105981A
Other languages
German (de)
French (fr)
Other versions
EP1136189A2 (en
EP1136189B1 (en
Inventor
Thomas Deimel
Marcus Dr.-Ing. Geimer
Markus Mellwig
Heinz-Jürgen Dr.-Ing. Prokop
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.)
Construction Tools GmbH
Original Assignee
Atlas Copco Construction Tools GmbH
Atlas Copco Construction Tools AB
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=7635278&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1136189(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Atlas Copco Construction Tools GmbH, Atlas Copco Construction Tools AB filed Critical Atlas Copco Construction Tools GmbH
Publication of EP1136189A2 publication Critical patent/EP1136189A2/en
Publication of EP1136189A3 publication Critical patent/EP1136189A3/en
Application granted granted Critical
Publication of EP1136189B1 publication Critical patent/EP1136189B1/en
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
    • 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
    • B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
    • B25D9/265—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof with arrangements for automatic stopping when the tool is lifted from the working face or suffers excessive bore resistance

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
  • Earth Drilling (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

Die Erfindung bezieht sich auf ein fluidbetriebenes Schlagwerk (1) mit einem Schlagkolben (3), der unter Einwirkung einer Steuerung (5) wechselweise einen Arbeitshub und einen Rückhub ausführt.The invention relates to a fluid-operated hammer mechanism (1) with a Percussion piston (3), alternately under the action of a control (5) performs a working stroke and a return stroke.

Zur Vermeidung von Leerschlägen wird eine Ausgestaltung des Schlagwerks (1) vorgeschlagen, durch welche der Schlagkolben (3) stillgesetzt wird, falls er die sich im Normalbetrieb (Langhub- und/oder Kurzhubbetrieb) ergebende Ausfahrstellung in Arbeitshubrichtung (Pfeil 3e) um ein vorgegebenes Wegstück bis zur Einnahme einer Leerschlagstellung überfahren hat. Zu diesem Zweck weist der Innenraum (2d) des den Schlagkolben (3) aufnehmenden Arbeitszylinders (2) zusätzlich eine Leerschlag-Einmündung (20a) auf, die unter Zwischenschaltung eines zwischen einer Außerbetriebstellung und einer Wirkstellung umschaltbaren Sicherungselements (21) mit der Druckleitung (8) des Schlagwerks (1) in Verbindung steht.

Figure 00000001
To avoid empty blows, a design of the percussion mechanism (1) is proposed, by means of which the percussion piston (3) is stopped if it extends the extended position in the working stroke direction (arrow 3e) in normal operation (long-stroke and / or short-stroke operation) by a predetermined distance has run over until an empty position has been taken. For this purpose, the interior (2d) of the working cylinder (2) receiving the percussion piston (3) additionally has an empty-blow junction (20a) which, with the interposition of a safety element (21) which can be switched between an inoperative position and an active position, with the pressure line (8 ) of the striking mechanism (1) is connected.
Figure 00000001
EP01105981A 2000-03-17 2001-03-10 Percussive tool with fluid-pressure drive Expired - Lifetime EP1136189B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10013270A DE10013270A1 (en) 2000-03-17 2000-03-17 Fluid-driven hammer mechanism has striking piston made immobile if its movement exceeds certain setting
DE10013270 2000-03-17

Publications (3)

Publication Number Publication Date
EP1136189A2 EP1136189A2 (en) 2001-09-26
EP1136189A3 true EP1136189A3 (en) 2003-08-13
EP1136189B1 EP1136189B1 (en) 2004-05-12

Family

ID=7635278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01105981A Expired - Lifetime EP1136189B1 (en) 2000-03-17 2001-03-10 Percussive tool with fluid-pressure drive

Country Status (6)

Country Link
US (1) US6334495B2 (en)
EP (1) EP1136189B1 (en)
JP (1) JP4891484B2 (en)
AT (1) ATE266503T1 (en)
DE (2) DE10013270A1 (en)
ES (1) ES2218294T3 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6557652B2 (en) * 2000-05-18 2003-05-06 Guenter Klemm Method for performing ground or rock work and hydraulic percussion device
DE10123202A1 (en) 2001-05-12 2002-11-14 Krupp Berco Bautechnik Gmbh Method and device for protecting a fluid-powered striking mechanism against empty blows
DE102004035289A1 (en) * 2004-07-21 2006-02-16 Kennametal Widia Gmbh & Co.Kg Tool
DE102004035306A1 (en) * 2004-07-21 2006-03-16 Atlas Copco Construction Tools Gmbh Pressure medium operated impact device, in particular hydraulic hammer
EP1987255B1 (en) * 2006-02-21 2012-06-06 FESTO AG & Co. KG Pneumatic drive system
FI123634B (en) * 2007-10-05 2013-08-30 Sandvik Mining & Constr Oy Mining equipment, protective valve and method for using mining equipment
KR101058181B1 (en) 2009-05-04 2011-08-22 대모 엔지니어링 주식회사 Breaker Valve System
SE536289C2 (en) * 2011-04-05 2013-08-06 Atlas Copco Rock Drills Ab Hydraulic percussion for rock or concrete cutting equipment as well as drilling and breaking equipment
KR101285286B1 (en) * 2011-09-22 2013-07-11 대모 엔지니어링 주식회사 Adjusting device for preventing idle impact of hydraulic breaker
DE102012012297A1 (en) * 2012-03-30 2013-10-02 Atlas Copco Construction Tools Gmbh Valve
SE537608C2 (en) * 2013-11-01 2015-07-28 Tools Pc Ab Const Pneumatic impact device and method of pneumatic impact device
US9701003B2 (en) * 2014-05-23 2017-07-11 Caterpillar Inc. Hydraulic hammer having delayed automatic shutoff
CN104088851A (en) * 2014-07-17 2014-10-08 常州爱普超高压液压系统有限公司 Hydraulic oil cylinder capable of reciprocating automatically
US9840000B2 (en) * 2014-12-17 2017-12-12 Caterpillar Inc. Hydraulic hammer having variable stroke control
US20160221171A1 (en) * 2015-02-02 2016-08-04 Caterpillar Inc. Hydraulic hammer having dual valve acceleration control system
EP3141348A1 (en) * 2015-09-14 2017-03-15 HILTI Aktiengesellschaft Driving device powered by combustion gas with valve member
EP3141347A1 (en) * 2015-09-14 2017-03-15 HILTI Aktiengesellschaft Driving device powered by combustion gas with valve member
KR101782535B1 (en) * 2016-01-28 2017-10-24 대모 엔지니어링 주식회사 Hydraulic breaker
FI3659752T3 (en) 2017-07-24 2023-05-04 Furukawa Rock Drill Co Ltd Hydraulic hammering device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3241622A (en) * 1964-07-13 1966-03-22 Atlas Copco Ab Means for preventing idle operation of percussion tools
FR2584968A1 (en) * 1985-07-16 1987-01-23 Montabert Ets Method for controlling the movement of the striking piston of a percussion appliance which is driven by a pressurised incompressible fluid, and appliance for implementing the method
US5775441A (en) * 1995-05-25 1998-07-07 Makita Corporation Power driven striking tool
US5860481A (en) * 1996-09-10 1999-01-19 Krupp Bautechnik Gmbh Fluid-operated striker assembly with automatic stroke length variation

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE551396C (en) * 1928-12-14 1932-05-31 Ingersoll Rand Co Pneumatic rock drilling machine
US2619072A (en) * 1949-07-25 1952-11-25 Chambersburg Eng Co Drop hammer control
DE934804C (en) 1953-06-02 1955-11-03 Ind Schaeffler O H G Roller or needle bearing cages
US5064005A (en) * 1990-04-30 1991-11-12 Caterpillar Inc. Impact hammer and control arrangement therefor
JP2677751B2 (en) * 1993-03-11 1997-11-17 株式会社テイサク Striking device
US5474138A (en) * 1993-12-08 1995-12-12 J & M Hydraulics, Inc. Hydraulic control circuit for pile driver
US5607022A (en) * 1995-03-10 1997-03-04 Walker; Leon R. Concrete drop hammer attachment device
JPH08281571A (en) * 1995-04-14 1996-10-29 Komatsu Ltd Vibration generating device
DE19529538A1 (en) * 1995-08-11 1997-02-13 Delmag Maschinenfabrik ram
WO1998004387A1 (en) * 1996-07-25 1998-02-05 Komatsu Ltd. Hydraulically operated breaker with lost-motion prevention device
JPH1080878A (en) * 1996-09-05 1998-03-31 Furukawa Co Ltd Hydraulic precussion device
DE19803449A1 (en) * 1998-01-30 1999-08-05 Krupp Berco Bautechnik Gmbh Pressurized impact device
JP2000326261A (en) * 1999-05-13 2000-11-28 Mazda Earth Technologies Co Ltd Hydraulic striker device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3241622A (en) * 1964-07-13 1966-03-22 Atlas Copco Ab Means for preventing idle operation of percussion tools
FR2584968A1 (en) * 1985-07-16 1987-01-23 Montabert Ets Method for controlling the movement of the striking piston of a percussion appliance which is driven by a pressurised incompressible fluid, and appliance for implementing the method
US5775441A (en) * 1995-05-25 1998-07-07 Makita Corporation Power driven striking tool
US5860481A (en) * 1996-09-10 1999-01-19 Krupp Bautechnik Gmbh Fluid-operated striker assembly with automatic stroke length variation

Also Published As

Publication number Publication date
EP1136189A2 (en) 2001-09-26
EP1136189B1 (en) 2004-05-12
US20010022229A1 (en) 2001-09-20
DE10013270A1 (en) 2001-09-20
JP2001315074A (en) 2001-11-13
JP4891484B2 (en) 2012-03-07
ATE266503T1 (en) 2004-05-15
DE50102232D1 (en) 2004-06-17
ES2218294T3 (en) 2004-11-16
US6334495B2 (en) 2002-01-01

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