[go: up one dir, main page]

GB1450972A - Percussive tool - Google Patents

Percussive tool

Info

Publication number
GB1450972A
GB1450972A GB3082474A GB3082474A GB1450972A GB 1450972 A GB1450972 A GB 1450972A GB 3082474 A GB3082474 A GB 3082474A GB 3082474 A GB3082474 A GB 3082474A GB 1450972 A GB1450972 A GB 1450972A
Authority
GB
United Kingdom
Prior art keywords
piston
pressure
control
valve
ducts
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
Application number
GB3082474A
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.)
KLEMM GUENTER ING FA
Original Assignee
KLEMM GUENTER ING FA
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
Priority claimed from DE19742428236 external-priority patent/DE2428236C2/en
Application filed by KLEMM GUENTER ING FA filed Critical KLEMM GUENTER ING FA
Publication of GB1450972A publication Critical patent/GB1450972A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B25D9/14—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
    • 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
    • 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
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/007—Reciprocating-piston liquid engines with single cylinder, double-acting piston
    • 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
    • B25D2209/007—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1450972 Percussive tool G KLEMM [trading as INGENIEUR GUNTER KLEMM SPEZIALUNTERNEHMEN FUR BOHRTECHNIK] 11 July 1974 [11 June 1974] 30824/74 Heading B4C An hydraulic percussive tool comprises a driving piston 11 and a control piston 23 the working piston 11 during its movement on the return stroke uncovering a series of throttled ducts 25, 26, 27, 28 which control the movement of control piston 23 which in turn gradually decelerates piston 11 thus preventing severe shocks. The piston 23 comprises a liollow sleeve acted on by springs 31, 34. In operation pressure medium enters by a duct 13 and passes by ducts 19, 15 to both sides of piston 11 but causes the piston to move downwardly due to the larger area at the upper side of piston 11. Control valve 23 is held down by pressure on its surface 56. When the ducts 25-28 are cut off by the piston 11 the pressure therein falls and the pressure on surface 56 falls allowing the valve 23 to rise and connect the upper area of piston 11 to exhaust duct 21 by an annular ring 29 in piston 23. As the piston 11 rides control duets 25-28 are gradually uncovered which allows valve 23 to move slowly downwardly due to build up in pressure on surface 56 and hence the pressure builds up slowly above piston 11 to produce gradual cushioning. A spring loaded valve 14 is provided to pass incoming air to an accumulator 43 to cause gradual movements therein and prevent rupture of the membrane 44 therein.
GB3082474A 1974-06-11 1974-07-11 Percussive tool Expired GB1450972A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742428236 DE2428236C2 (en) 1974-06-11 Impact device

Publications (1)

Publication Number Publication Date
GB1450972A true GB1450972A (en) 1976-09-29

Family

ID=5917884

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3082474A Expired GB1450972A (en) 1974-06-11 1974-07-11 Percussive tool

Country Status (9)

Country Link
US (1) US3908767A (en)
JP (1) JPS5423150B2 (en)
AT (1) AT335948B (en)
BE (1) BE830092A (en)
FI (1) FI62480C (en)
FR (1) FR2274405A1 (en)
GB (1) GB1450972A (en)
SE (1) SE410157B (en)
ZA (1) ZA745459B (en)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5236880B2 (en) * 1974-03-18 1977-09-19
US4074775A (en) * 1975-02-25 1978-02-21 Fishing Tools, Inc. Power swivel
US3995700A (en) * 1975-10-14 1976-12-07 Gardner-Denver Company Hydraulic rock drill system
US4174010A (en) * 1975-10-24 1979-11-13 Joy Manufacturing Company Rock drill
CA1071946A (en) * 1975-10-24 1980-02-19 George A. Hibbard Rock drill
US4265321A (en) * 1975-11-12 1981-05-05 Joy Manufacturing Company Rock drill
US4062411A (en) * 1975-12-05 1977-12-13 Gardner-Denver Company Hydraulic percussion tool with impact blow and frequency control
AU520326B2 (en) * 1976-04-28 1982-01-28 Joy Manufacturing Company Oscillating motor
US4342255A (en) * 1976-06-09 1982-08-03 Mitsui Engineering And Shipbuilding Co., Ltd. Oscillator actuated hydraulic impulse device
JPS52153893A (en) * 1976-06-16 1977-12-21 Koa Oil Co Ltd Manufacture of pelletized carbon
JPS6039875B2 (en) * 1976-09-04 1985-09-07 昇 斉藤 Device that converts fluid pressure energy into reciprocating motion
GB1556754A (en) * 1976-12-10 1979-11-28 Af Hydraulics Hydraulically-actuated percussive device with overstroke damping
FI55781C (en) * 1977-06-21 1979-10-10 Tampella Oy Ab STYRNING FOER SKOELJNINGSROER
FR2429320A1 (en) * 1978-06-20 1980-01-18 Secoma ROTO-PERCUTANT HYDRAULIC DRILLING APPARATUS
FI72908C (en) * 1979-06-29 1987-08-10 Rammer Oy HYDRAULISK SLAGMASKIN.
JPS5910930B2 (en) * 1979-11-02 1984-03-12 呉羽化学工業株式会社 Method for manufacturing spherical carbon molded bodies
SE420057B (en) * 1980-02-20 1981-09-14 Atlas Copco Ab HYDRAULIC SHIPPING WITH POSSIBILITY TO REGULATE SHOCK ENERGY
DE3115361A1 (en) * 1981-04-16 1982-10-28 Hydroc Gesteinsbohrtechnik GmbH, 5960 Olpe Hydraulic percussion device
US4520574A (en) * 1983-02-25 1985-06-04 House Food Industrial Co., Ltd. Process for drying foods under reduced pressure
FR2557927B1 (en) * 1984-01-10 1986-05-23 Marine Petroleum Equipment HYDRAULIC MOTOR WITH RECIPROCATING CYLINDER, PARTICULARLY FOR OIL PUMPING.
AT381364B (en) * 1984-10-24 1986-10-10 Voest Alpine Ag DEVICE FOR SUPPLYING WATER UNDER PRESSURE TO OUTLET NOZZLES ON THE CIRCUMFERENCE OF A SCREWING TOOL
JPS61111963A (en) * 1984-11-05 1986-05-30 出光興産株式会社 Manufacturing method of carbon molded body
JPS61197466A (en) * 1985-02-22 1986-09-01 出光興産株式会社 Manufacturing method of carbon molded body
JPS61295217A (en) * 1985-06-22 1986-12-26 Unitika Ltd Fibrous active carbon
FR2595972B2 (en) * 1985-07-16 1989-10-20 Montabert Ets PERCUSSION APPARATUS
FR2584968B1 (en) * 1985-07-16 1989-02-17 Montabert Ets METHOD FOR CONTROLLING THE MOVEMENT OF THE IMPACT PISTON OF A PERCUSSION APPARATUS MOUSED BY AN INCOMPRESSIBLE PRESSURE FLUID, AND APPARATUS FOR IMPLEMENTING THE METHOD
EP0236721A3 (en) * 1986-03-11 1989-10-25 NITTETSU JITSUGYO CO., Ltd. Hydraulic breaker
FR2602448B1 (en) * 1986-08-07 1988-10-21 Montabert Ets METHOD FOR REGULATING THE PERCUSSION PARAMETERS OF THE STRIKE PISTON OF AN APPARATUS MOVED BY AN INCOMPRESSIBLE PRESSURE FLUID, AND APPARATUS FOR CARRYING OUT SAID METHOD
DE4113323A1 (en) * 1991-04-24 1992-10-29 Krupp Maschinentechnik PERFORMANCE FOR A DRILL ROD
IT1270226B (en) * 1994-06-15 1997-04-29 Giordano S R L Off PRESSURE DISTRIBUTION DEVICE AND HYDRAULIC HAMMER EQUIPPED WITH SUCH DEVICE
US5586480A (en) * 1996-02-20 1996-12-24 Ingersoll-Rand Company Pneumatic motor
EP1518825B1 (en) 2003-09-25 2015-02-18 Kureha Corporation Process for producing spherical activated carbon
SE528033C2 (en) * 2004-03-12 2006-08-15 Atlas Copco Constr Tools Ab Hydraulic hammer
SE536758C2 (en) * 2012-11-28 2014-07-15 Atlas Copco Rock Drills Ab Percussion for a hydraulic rock drill, method for operating a percussion and hydraulic rock drill including percussion
CH711414A1 (en) * 2015-08-13 2017-02-15 Hatebur Umformmaschinen Ag Device for generating impulse dynamic process forces.
US20180133882A1 (en) * 2016-11-16 2018-05-17 Caterpillar Inc. Hydraulic hammer and sleeve therefor
CN111237263A (en) * 2020-01-09 2020-06-05 中国铁建重工集团股份有限公司 Impact device for rock drill

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3322038A (en) * 1964-04-09 1967-05-30 Sperry Rand Corp Hydraulic hammer
US3207043A (en) * 1964-04-09 1965-09-21 Sperry Rand Corp Hydraulic hammer
US3774502A (en) * 1971-05-14 1973-11-27 Krupp Gmbh Hydraulic percussion device with pressure-responsive control of impact frequency
US3780621A (en) * 1971-06-07 1973-12-25 Atlas Copco Ab Hydraulic fluid actuated percussion tool

Also Published As

Publication number Publication date
JPS5176A (en) 1976-01-05
FI751657A7 (en) 1975-12-12
AT335948B (en) 1977-04-12
FR2274405A1 (en) 1976-01-09
FR2274405B1 (en) 1982-08-13
ZA745459B (en) 1975-09-24
FI62480B (en) 1982-09-30
SE410157B (en) 1979-10-01
SE7506694L (en) 1975-12-12
US3908767A (en) 1975-09-30
ATA394075A (en) 1976-08-15
DE2428236B1 (en) 1975-10-30
DE2428236A1 (en) 1975-10-30
JPS5423150B2 (en) 1979-08-11
FI62480C (en) 1983-01-10
BE830092A (en) 1975-12-11

Similar Documents

Publication Publication Date Title
GB1450972A (en) Percussive tool
ATE76943T1 (en) SHOCK ABSORBER WITH RETURN SPRING UNDER GAS PRESSURE.
SE8003177L (en) VIBRATION DUMP DEVICE TOOL
GB1012612A (en) Percussion device
GB1475844A (en) Pressure medium operable percussive tool
GB1388345A (en) Valve arrangement for the control of a pneumatic actuator
EP0016896A3 (en) An apparatus for restricting the velocity of a hydraulic piston at its end positions
GB783462A (en) Hydraulic mechanism which yields to an applied force of predetermined magnitude and subsequently resets itself, and torque spanners comprising such mechanism
GB845150A (en) Fluid-actuated mechanism
GB1252857A (en)
SE8005900L (en) HYDRAULIC SERVOS SYSTEM
GB1387475A (en) Hydraulic or pneumatic actuators of the cylinder and piston type
GB1161905A (en) Impact Ram.
ES423944A1 (en) Device for controlling the reciprocation of a working piston
GB1052680A (en)
SU1377493A1 (en) Pneumohydraulic system
GB1477609A (en) Hydraulic or pneumatic working cylinder with a position indicator
GB987629A (en) Hydraulic force exerting apparatus
GB1124527A (en) Improvements in or relating to percussive tools and machines
GB1150455A (en) Depth Control Systems for Tractor Appliances
GB943494A (en) Improvements in or relating to power operated collet clutches
GB1024340A (en) Improvements in or relating to a pneumatic hammer
GB762768A (en) Pneumatic rams
GB1026136A (en) Hydraulic pit prop with extended lift
GB1067691A (en) Double acting steam or air hammer

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19940710