FR2263398A1 - Hydraulic percussive tool - has changeover valve for driving moving parts to and fro - Google Patents

Hydraulic percussive tool - has changeover valve for driving moving parts to and fro

Info

Publication number
FR2263398A1
FR2263398A1 FR7407263A FR7407263A FR2263398A1 FR 2263398 A1 FR2263398 A1 FR 2263398A1 FR 7407263 A FR7407263 A FR 7407263A FR 7407263 A FR7407263 A FR 7407263A FR 2263398 A1 FR2263398 A1 FR 2263398A1
Authority
FR
France
Prior art keywords
stroke
movement
changeover valve
pressure acting
parts
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
FR7407263A
Other languages
English (en)
French (fr)
Other versions
FR2263398B1 (US06229276-20010508-P00081.png
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.)
Victor Products Wallsend Ltd
Victor Products Ltd
Original Assignee
Victor Products Wallsend Ltd
Victor Products 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 Victor Products Wallsend Ltd, Victor Products Ltd filed Critical Victor Products Wallsend Ltd
Priority to FR7407263A priority Critical patent/FR2263398A1/fr
Publication of FR2263398A1 publication Critical patent/FR2263398A1/fr
Application granted granted Critical
Publication of FR2263398B1 publication Critical patent/FR2263398B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/18—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid
    • B06B1/183—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid operating with reciprocating masses
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L21/00—Use of working pistons or pistons-rods as fluid-distributing valves or as valve-supporting elements, e.g. in free-piston machines
    • F01L21/02—Piston or piston-rod used as valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/02—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means
    • F01L25/04—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means by working-fluid of machine or engine, e.g. free-piston machine
    • F01L25/06—Arrangements with main and auxiliary valves, at least one of them being fluid-driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/0011—Details of anvils, guide-sleeves or pistons
    • B25D2217/0023—Pistons
    • B25D2217/0026—Double pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Percussive Tools And Related Accessories (AREA)
FR7407263A 1974-03-04 1974-03-04 Hydraulic percussive tool - has changeover valve for driving moving parts to and fro Granted FR2263398A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7407263A FR2263398A1 (en) 1974-03-04 1974-03-04 Hydraulic percussive tool - has changeover valve for driving moving parts to and fro

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7407263A FR2263398A1 (en) 1974-03-04 1974-03-04 Hydraulic percussive tool - has changeover valve for driving moving parts to and fro

Publications (2)

Publication Number Publication Date
FR2263398A1 true FR2263398A1 (en) 1975-10-03
FR2263398B1 FR2263398B1 (US06229276-20010508-P00081.png) 1979-05-25

Family

ID=9135773

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7407263A Granted FR2263398A1 (en) 1974-03-04 1974-03-04 Hydraulic percussive tool - has changeover valve for driving moving parts to and fro

Country Status (1)

Country Link
FR (1) FR2263398A1 (US06229276-20010508-P00081.png)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2341741A2 (fr) * 1976-02-23 1977-09-16 Koehring Gmbh Bomag Division Generateur hydraulique de vibrations pour compresseurs vibrants
FR2354460A1 (fr) * 1976-06-09 1978-01-06 Mitsui Shipbuilding Eng Dispositif hydraulique a impulsions, notamment pour l'actionnement d'outils
EP0071655A1 (de) * 1981-08-04 1983-02-16 HEILMEIER & WEINLEIN Fabrik für Oel-Hydraulik GmbH & Co. KG Pneumatisch betätigte Hydraulikpumpe
WO1990000106A1 (en) * 1988-06-30 1990-01-11 Caterpillar Inc. Synchronized hydraulic hammer arrangement
AU2002340982B2 (en) * 2001-11-07 2007-12-20 Sandvik Mining And Construction Oy Percussion device with a control valve for two alternately striking pistons

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2341741A2 (fr) * 1976-02-23 1977-09-16 Koehring Gmbh Bomag Division Generateur hydraulique de vibrations pour compresseurs vibrants
FR2354460A1 (fr) * 1976-06-09 1978-01-06 Mitsui Shipbuilding Eng Dispositif hydraulique a impulsions, notamment pour l'actionnement d'outils
EP0071655A1 (de) * 1981-08-04 1983-02-16 HEILMEIER & WEINLEIN Fabrik für Oel-Hydraulik GmbH & Co. KG Pneumatisch betätigte Hydraulikpumpe
WO1990000106A1 (en) * 1988-06-30 1990-01-11 Caterpillar Inc. Synchronized hydraulic hammer arrangement
AU2002340982B2 (en) * 2001-11-07 2007-12-20 Sandvik Mining And Construction Oy Percussion device with a control valve for two alternately striking pistons
US7464635B2 (en) 2001-11-07 2008-12-16 Sandvik Mining And Construction Oy Percussion device with a control valve for two alternately striking pistons

Also Published As

Publication number Publication date
FR2263398B1 (US06229276-20010508-P00081.png) 1979-05-25

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Legal Events

Date Code Title Description
ST Notification of lapse