EP0934804A3 - Druckmittelbetriebene Schlagvorrichtung - Google Patents

Druckmittelbetriebene Schlagvorrichtung Download PDF

Info

Publication number
EP0934804A3
EP0934804A3 EP99101199A EP99101199A EP0934804A3 EP 0934804 A3 EP0934804 A3 EP 0934804A3 EP 99101199 A EP99101199 A EP 99101199A EP 99101199 A EP99101199 A EP 99101199A EP 0934804 A3 EP0934804 A3 EP 0934804A3
Authority
EP
European Patent Office
Prior art keywords
pressure
valve
percussion device
fluid driven
stroke position
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
EP99101199A
Other languages
English (en)
French (fr)
Other versions
EP0934804B1 (de
EP0934804A2 (de
Inventor
Heinz-Jürgen Dr.-Ing. Prokop
Marcus Dr.-Ing. Geimer
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
Application filed by Atlas Copco Construction Tools GmbH, Atlas Copco Construction Tools AB filed Critical Atlas Copco Construction Tools GmbH
Publication of EP0934804A2 publication Critical patent/EP0934804A2/de
Publication of EP0934804A3 publication Critical patent/EP0934804A3/de
Application granted granted Critical
Publication of EP0934804B1 publication Critical patent/EP0934804B1/de
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
    • B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Pens And Brushes (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

Die Erfindung betrifft eine druckmittelbetriebene Schlagvorrichtung (5), insbesondere Hydraulikhammer, bestehend aus einem druckmittelbetriebenen Schlagwerk (8) mit einem unter Einwirkung einer Steuerung (10) hin- und herbewegten Schlagkolben (18) und einer Führungseinheit (7), an welcher das Schlagwerk abgestützt ist, wobei die Schlagvorrichtung zur Anpassung an die zugeführte Eingangsleistung zusätzlich mit einem als Druckwächter ausgebildeten Kontrollventil ausgestattet ist.
Mit der Erfindung wird der Vorschlag unterbreitet, das Kontrollventil als Druckabschaltventil oder als Druckbegrenzungsventil (25) auszubilden, welches mit der mit dem Arbeitsdruck beaufschlagten Druckleitung (3) in Verbindung steht und das Schlagwerk (8) selbsttätig stillsetzt, falls der sich aufgrund der Eingangsleistung einstellende Arbeitsdruck einen vorgegebenen Höchstwert überschreitet. Zum Stillsetzen des Schlagwerks (8) wird entweder die Druckleitung (3) blockiert oder die Steuerung (10) in einer ihrer Endstellungen - nämlich der Arbeitshubstellung oder der Rückhubstellung - festgehalten.
Der Erfindungsgegenstand ist weiterhin dadurch gekennzeichnet, daß das Druckabschaltventil oder das Druckbegrenzungsventil (25) einen Bestandteil der aus einem Tragrahmen (7) bestehenden Führungseinheit oder des Schlagwerks (8) selbst bildet.
EP99101199A 1998-01-30 1999-01-22 Druckmittelbetriebene Schlagvorrichtung Expired - Lifetime EP0934804B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803449A DE19803449A1 (de) 1998-01-30 1998-01-30 Druckmittelbetriebene Schlagvorrichtung
DE19803449 1998-01-30

Publications (3)

Publication Number Publication Date
EP0934804A2 EP0934804A2 (de) 1999-08-11
EP0934804A3 true EP0934804A3 (de) 2003-03-05
EP0934804B1 EP0934804B1 (de) 2006-01-11

Family

ID=7856037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99101199A Expired - Lifetime EP0934804B1 (de) 1998-01-30 1999-01-22 Druckmittelbetriebene Schlagvorrichtung

Country Status (5)

Country Link
US (1) US6959967B1 (de)
EP (1) EP0934804B1 (de)
AT (1) ATE315457T1 (de)
DE (2) DE19803449A1 (de)
ES (1) ES2257827T3 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10013270A1 (de) * 2000-03-17 2001-09-20 Krupp Berco Bautechnik Gmbh Fluidbetriebenes Schlagwerk
DE10123202A1 (de) 2001-05-12 2002-11-14 Krupp Berco Bautechnik Gmbh Verfahren und Vorrichtung zur Absicherung eines fluidbetriebenen Schlagwerks gegen Leerschläge
DE102004035306A1 (de) * 2004-07-21 2006-03-16 Atlas Copco Construction Tools Gmbh Druckmittelbetriebene Schlagvorrichtung insbesondere Hydraulikhammer
DE102004035289A1 (de) * 2004-07-21 2006-02-16 Kennametal Widia Gmbh & Co.Kg Werkzeug
DE102006026274A1 (de) 2006-06-02 2007-12-06 Willy Vogel Ag Selbsttätige Schmierpumpe mit doppelt wirkendem Antriebskolben
US8939227B2 (en) 2010-12-23 2015-01-27 Caterpillar Inc. Pressure protection valve for hydraulic tool
RU2476644C1 (ru) * 2011-10-06 2013-02-27 Учреждение Российской академии наук Институт горного дела Сибирского отделения РАН Регулируемая ударная машина
GB2522625A (en) * 2014-01-29 2015-08-05 Mincon Internat Ltd Pressure control system
US9701003B2 (en) 2014-05-23 2017-07-11 Caterpillar Inc. Hydraulic hammer having delayed automatic shutoff
RU2567059C1 (ru) * 2014-10-20 2015-10-27 Федеральное государственное бюджетное учреждение науки Институт горного дела им. Н.А. Чинакала Сибирского отделения Российской академии наук Регулируемая ударная машина (варианты)
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
US10377028B2 (en) 2016-03-14 2019-08-13 Caterpillar Inc. Hammer protection system and method
ES2733769B2 (es) * 2018-05-31 2020-05-26 Mayor Gines Perez Martillo hidráulico para demolición

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2397578A1 (fr) * 1977-07-13 1979-02-09 Baudet Alain Dispositif de securite pour supprimer les risques d'accident sur les machines hydrauliques
JPS59185234A (ja) * 1983-04-05 1984-10-20 Kubota Ltd フロントロ−ダの制御装置
US4718329A (en) * 1985-02-04 1988-01-12 Hitachi Construction Machinery Co., Ltd. Control system for hydraulic circuit
US4900093A (en) * 1986-11-10 1990-02-13 Caterpillar Inc. Impact ripper and control

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664435A (en) 1970-11-09 1972-05-23 Worthington Corp Worthington C Hydraulic hammer with automatic stopping action
FI50390C (fi) * 1973-09-14 1976-03-10 Murskauskone Oy Hydraulisesti käytetty iskulaite
US4006783A (en) * 1975-03-17 1977-02-08 Linden-Alimak Ab Hydraulic operated rock drilling apparatus
US4062411A (en) * 1975-12-05 1977-12-13 Gardner-Denver Company Hydraulic percussion tool with impact blow and frequency control
DE2737081C3 (de) 1977-08-17 1980-07-24 Frank 3380 Goslar Habsick Hydraulischer Drehschlaghammer
DE4036918A1 (de) * 1990-11-20 1992-05-21 Krupp Maschinentechnik Verfahren zur anpassung des arbeitsverhaltens eines schlagwerks an die haerte des zerkleinerungsmaterials und einrichtung zur durchfuehrung des verfahrens
DE4128137A1 (de) 1991-08-24 1993-02-25 Krupp Maschinentechnik Sicherheitseinrichtung fuer fluidbetriebene schlagwerke
US5417294A (en) * 1994-03-15 1995-05-23 American Pneumatic Technologies Pneumatic hammer
FI104959B (fi) 1994-06-23 2000-05-15 Sandvik Tamrock Oy Hydraulinen iskuvasara
FI104960B (fi) * 1995-07-06 2000-05-15 Sandvik Tamrock Oy Hydraulinen iskuvasara

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2397578A1 (fr) * 1977-07-13 1979-02-09 Baudet Alain Dispositif de securite pour supprimer les risques d'accident sur les machines hydrauliques
JPS59185234A (ja) * 1983-04-05 1984-10-20 Kubota Ltd フロントロ−ダの制御装置
US4718329A (en) * 1985-02-04 1988-01-12 Hitachi Construction Machinery Co., Ltd. Control system for hydraulic circuit
US4900093A (en) * 1986-11-10 1990-02-13 Caterpillar Inc. Impact ripper and control

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 046 (M - 360) 27 February 1985 (1985-02-27) *

Also Published As

Publication number Publication date
EP0934804B1 (de) 2006-01-11
DE59913032D1 (de) 2006-04-06
ATE315457T1 (de) 2006-02-15
EP0934804A2 (de) 1999-08-11
DE19803449A1 (de) 1999-08-05
ES2257827T3 (es) 2006-08-01
US6959967B1 (en) 2005-11-01

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