FR3094658B1 - Percussion device with automatic regulation of the supply pressure of the percussion device - Google Patents

Percussion device with automatic regulation of the supply pressure of the percussion device Download PDF

Info

Publication number
FR3094658B1
FR3094658B1 FR1903589A FR1903589A FR3094658B1 FR 3094658 B1 FR3094658 B1 FR 3094658B1 FR 1903589 A FR1903589 A FR 1903589A FR 1903589 A FR1903589 A FR 1903589A FR 3094658 B1 FR3094658 B1 FR 3094658B1
Authority
FR
France
Prior art keywords
percussion device
piston
piston cylinder
control chamber
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.)
Expired - Fee Related
Application number
FR1903589A
Other languages
French (fr)
Other versions
FR3094658A1 (en
Inventor
Bernard Piras
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.)
Montabert SAS
Original Assignee
Montabert SAS
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 Montabert SAS filed Critical Montabert SAS
Priority to FR1903589A priority Critical patent/FR3094658B1/en
Priority to PCT/EP2020/059133 priority patent/WO2020201288A1/en
Publication of FR3094658A1 publication Critical patent/FR3094658A1/en
Application granted granted Critical
Publication of FR3094658B1 publication Critical patent/FR3094658B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B25D9/06—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
    • B25D9/16—Valve arrangements therefor
    • B25D9/18—Valve arrangements therefor involving a piston-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
    • B25D9/14—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
    • B25D9/14—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

Cet appareil à percussions (2) comprend un corps (3) délimitant un cylindre de piston (4) ; un piston de frappe (5) monté déplaçable de façon alternative à l’intérieur du cylindre de piston (4), le piston de frappe (4) et le cylindre de piston (4) délimitant une première chambre de commande (8) reliée en permanence à un circuit d’alimentation en fluide haute pression (12) de l’appareil à percussions (2) et une deuxième chambre de commande (9) qui est antagoniste à la première chambre de commande (8) ; et un distributeur de commande (11) configuré pour commander un mouvement alternatif du piston de frappe (5) à l’intérieur du cylindre de piston (4) alternativement suivant une course de frappe et une course de retour, le distributeur de commande (11) étant configuré pour relier la deuxième chambre de commande (9) alternativement au circuit d’alimentation en fluide haute pression (12) et à un circuit de retour de fluide basse pression (13) de l’appareil à percussions (2). Le distributeur de commande (11) est en outre configuré pour réguler automatiquement la pression d’alimentation de l’appareil à percussions (2) à une valeur de pression prédéterminée. Figure 3This percussion device (2) comprises a body (3) defining a piston cylinder (4); a striking piston (5) mounted so as to move in an alternating manner inside the piston cylinder (4), the striking piston (4) and the piston cylinder (4) defining a first control chamber (8) connected in permanently to a high pressure fluid supply circuit (12) of the percussion apparatus (2) and a second control chamber (9) which is antagonistic to the first control chamber (8); and a control valve (11) configured to control reciprocating movement of the strike piston (5) within the piston cylinder (4) alternately along a strike stroke and a return stroke, the control valve (11) ) being configured to connect the second control chamber (9) alternately to the high pressure fluid supply circuit (12) and to a low pressure fluid return circuit (13) of the percussion apparatus (2). The control valve (11) is further configured to automatically regulate the supply pressure of the percussion apparatus (2) to a predetermined pressure value. Figure 3

FR1903589A 2019-04-03 2019-04-03 Percussion device with automatic regulation of the supply pressure of the percussion device Expired - Fee Related FR3094658B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1903589A FR3094658B1 (en) 2019-04-03 2019-04-03 Percussion device with automatic regulation of the supply pressure of the percussion device
PCT/EP2020/059133 WO2020201288A1 (en) 2019-04-03 2020-03-31 Percussion apparatus with automatic regulation of the percussion-apparatus supply pressure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1903589A FR3094658B1 (en) 2019-04-03 2019-04-03 Percussion device with automatic regulation of the supply pressure of the percussion device
FR1903589 2019-04-03

Publications (2)

Publication Number Publication Date
FR3094658A1 FR3094658A1 (en) 2020-10-09
FR3094658B1 true FR3094658B1 (en) 2021-03-19

Family

ID=67956936

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1903589A Expired - Fee Related FR3094658B1 (en) 2019-04-03 2019-04-03 Percussion device with automatic regulation of the supply pressure of the percussion device

Country Status (2)

Country Link
FR (1) FR3094658B1 (en)
WO (1) WO2020201288A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2676953B1 (en) * 1991-05-30 1993-08-20 Montabert Ets HYDRAULIC PERCUSSION APPARATUS.
FR2983760B1 (en) * 2011-12-09 2014-08-15 Montabert Roger METHOD FOR SWITCHING THE STROKE STROKE OF A STRIPPER PISTON OF A PERCUSSION APPARATUS
CA3070248A1 (en) * 2017-07-20 2019-01-24 Mincon International Limited Valve piloting arrangements for hydraulic percussion devices

Also Published As

Publication number Publication date
WO2020201288A1 (en) 2020-10-08
FR3094658A1 (en) 2020-10-09

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PLSC Publication of the preliminary search report

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