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AU540338B2 - Percussive hammer - Google Patents

Percussive hammer

Info

Publication number
AU540338B2
AU540338B2 AU85778/82A AU8577882A AU540338B2 AU 540338 B2 AU540338 B2 AU 540338B2 AU 85778/82 A AU85778/82 A AU 85778/82A AU 8577882 A AU8577882 A AU 8577882A AU 540338 B2 AU540338 B2 AU 540338B2
Authority
AU
Australia
Prior art keywords
piston
chamber
high pressure
pressure circuit
distributor
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.)
Ceased
Application number
AU85778/82A
Other versions
AU8577882A (en
Inventor
Robert Montabert
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
Publication of AU8577882A publication Critical patent/AU8577882A/en
Application granted granted Critical
Publication of AU540338B2 publication Critical patent/AU540338B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • 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
    • B25D2209/002—Pressure accumulators
    • 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
    • B25D2209/005—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 coaxial with the piston

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Pens And Brushes (AREA)
  • Surgical Instruments (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Valve Device For Special Equipments (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Lasers (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Earth Drilling (AREA)
  • Catching Or Destruction (AREA)

Abstract

1. A percussion apparatus moved by a pressurised fluid, of the type comprising a mobile striking mass (2) in the form of a piston supplying a series of impacts on a tool (3), this piston being slidably mounted in a cylinder (4) which, provided in the body (5) of the apparatus and including ports (6, 7) connected by ducts (8, 9), serves additionally in the sliding of a distributor (10) connecting the chamber (11) situated above the piston alternately to a high pressure circuit (12), for enabling the piston to descend rapidly, and to a low pressure circuit (13) for effecting the return strocke of this piston, characterised in that it comprises, on the one hand, a non-return valve (22) enabling fluid to pass from the chamber (11) located above the strike piston towards the high pressure circuit (12) and, on the other hand, means ensuring that the distributor (10) is displaced sequentially in such a way that, starting from a position in which the chamber (11) located above the piston is connected to the high pressure (12), the distributor is displaced very rapidly as far as a position in which it interrupts the connection between the said chamber and the high pressure, then at a lower, controlled speed, so as to delay the connecting of the chamber (11) to the low pressure circuit (13), so as to enable the maximum amount of restorative energy to be recovered for the entire duration of the isolation of the chamber located above the piston with respect to the high pressure and low pressure circuits, by compressing the fluid isolated in the chamber for the passage of the latter into the high pressure circuit by means of the non-return valve.
AU85778/82A 1981-07-10 1982-07-09 Percussive hammer Ceased AU540338B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8114043A FR2509217A1 (en) 1981-07-10 1981-07-10 MU-PERCUSSION APPARATUS USING PRESSURIZED FLUID
FR8114043 1981-07-10

Publications (2)

Publication Number Publication Date
AU8577882A AU8577882A (en) 1983-01-13
AU540338B2 true AU540338B2 (en) 1984-11-15

Family

ID=9260646

Family Applications (1)

Application Number Title Priority Date Filing Date
AU85778/82A Ceased AU540338B2 (en) 1981-07-10 1982-07-09 Percussive hammer

Country Status (12)

Country Link
EP (1) EP0070246B1 (en)
JP (1) JPS5912428B2 (en)
AT (1) ATE9071T1 (en)
AU (1) AU540338B2 (en)
BR (1) BR8203985A (en)
CA (1) CA1205353A (en)
DE (2) DE3260607D1 (en)
ES (1) ES8304466A1 (en)
FI (1) FI78857C (en)
FR (1) FR2509217A1 (en)
NO (1) NO151109C (en)
ZA (1) ZA824781B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU592357B2 (en) * 1985-07-16 1990-01-11 Etablissements Montabert A process for the control of the movement of the striking piston of an impact device activated by an incompressible fluid under pressure, and a device for the implementation of this process
AU610513B2 (en) * 1986-08-07 1991-05-23 Etablissements Montabert Hydraulic percussion device and method of controlling same

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141657A (en) * 1983-05-10 1985-01-03 Panther Equip Ltd Improvements in hydraulically operated hammers
FR2550983A1 (en) * 1983-08-25 1985-03-01 Montabert Ets HYDRAULIC PERCUSSION APPARATUS
DE3443542A1 (en) * 1984-11-29 1986-06-05 Fried. Krupp Gmbh, 4300 Essen HYDRAULIC BEATER
FR2618092B1 (en) * 1987-07-17 1989-11-10 Montabert Ets HYDRAULIC DISTRIBUTOR FOR A PERCUSSION APPARATUS MOUSED BY AN INCOMPRESSIBLE PRESSURE FLUID
ATE154774T1 (en) * 1989-10-18 1997-07-15 Mauro Vitulano METHOD FOR AUTOMATICALLY ADJUSTING THE FUNCTIONAL PARAMETERS OF AN IMPACT APPARATUS
WO1993014271A1 (en) * 1992-01-21 1993-07-22 Bsp International Foundations Limited Valve mechanism
IT1312140B1 (en) * 1999-06-22 2002-04-09 Priver Ind Srl PERCUSSION HYDRAULIC MACHINE OF INNOVATIVE CONCEPTION WORKING WITH CONSTANT HYDRAULIC PRESSURE.
CN110107220B (en) * 2019-05-05 2020-12-04 三峡大学 Impact device and rock drilling equipment

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1431835A (en) * 1965-01-28 1966-03-18 Montabert Ets Percussion device
CA941264A (en) * 1970-04-03 1974-02-05 Etablissements Montabert Dispositif de commande du distributeur d'un appareil a percussions mu par un liquide sous pression
US3991655A (en) * 1974-11-11 1976-11-16 Hydroacoustics Inc. Hydroacoustic apparatus and valving mechanisms for use therein
FI751895A (en) * 1975-06-26 1976-12-27 Xandor Ag
FI56430C (en) * 1975-10-20 1982-08-09 Tampella Oy Ab SLAGANORDNING DRIVEN AV EN TRYCKVAETSKA
FR2369908A1 (en) * 1976-11-08 1978-06-02 Montabert Roger HYDRAULIC PERCUSSION DEVICE
SU945412A2 (en) * 1978-12-27 1982-07-23 Ордена Трудового Красного Знамени институт гидродинамики СО АН СССР Percussive device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU592357B2 (en) * 1985-07-16 1990-01-11 Etablissements Montabert A process for the control of the movement of the striking piston of an impact device activated by an incompressible fluid under pressure, and a device for the implementation of this process
AU610513B2 (en) * 1986-08-07 1991-05-23 Etablissements Montabert Hydraulic percussion device and method of controlling same

Also Published As

Publication number Publication date
BR8203985A (en) 1983-07-05
DE70246T1 (en) 1983-05-11
AU8577882A (en) 1983-01-13
ATE9071T1 (en) 1984-09-15
NO151109C (en) 1985-02-13
ZA824781B (en) 1983-04-27
FI822439A0 (en) 1982-07-08
DE3260607D1 (en) 1984-09-27
FI822439L (en) 1983-01-11
JPS5871081A (en) 1983-04-27
EP0070246A1 (en) 1983-01-19
NO822392L (en) 1983-01-11
ES513330A0 (en) 1983-03-16
FI78857C (en) 1989-10-10
JPS5912428B2 (en) 1984-03-23
EP0070246B1 (en) 1984-08-22
CA1205353A (en) 1986-06-03
FR2509217B1 (en) 1984-08-10
FI78857B (en) 1989-06-30
FR2509217A1 (en) 1983-01-14
NO151109B (en) 1984-11-05
ES8304466A1 (en) 1983-03-16

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired