IT7921375A0 - Apparecchio idraulico per laproduzione di colpi. - Google Patents

Apparecchio idraulico per laproduzione di colpi.

Info

Publication number
IT7921375A0
IT7921375A0 IT7921375A IT2137579A IT7921375A0 IT 7921375 A0 IT7921375 A0 IT 7921375A0 IT 7921375 A IT7921375 A IT 7921375A IT 2137579 A IT2137579 A IT 2137579A IT 7921375 A0 IT7921375 A0 IT 7921375A0
Authority
IT
Italy
Prior art keywords
hydraulic apparatus
shots
producing
producing shots
hydraulic
Prior art date
Application number
IT7921375A
Other languages
English (en)
Other versions
IT1113302B (it
Original Assignee
Crespo Jose T G
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 Crespo Jose T G filed Critical Crespo Jose T G
Publication of IT7921375A0 publication Critical patent/IT7921375A0/it
Application granted granted Critical
Publication of IT1113302B publication Critical patent/IT1113302B/it

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
    • B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
    • B25D9/265—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof with arrangements for automatic stopping when the tool is lifted from the working face or suffers excessive bore resistance

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Percussive Tools And Related Accessories (AREA)
IT21375/79A 1978-03-31 1979-03-28 Apparecchio idraulico per la produzione di colpi IT1113302B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES469097A ES469097A1 (es) 1978-03-31 1978-03-31 Aparato hidraulico para producir impactos

Publications (2)

Publication Number Publication Date
IT7921375A0 true IT7921375A0 (it) 1979-03-28
IT1113302B IT1113302B (it) 1986-01-20

Family

ID=8475914

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21375/79A IT1113302B (it) 1978-03-31 1979-03-28 Apparecchio idraulico per la produzione di colpi

Country Status (8)

Country Link
US (1) US4281587A (it)
CA (1) CA1135156A (it)
DE (1) DE2912426A1 (it)
ES (1) ES469097A1 (it)
FR (1) FR2421035A1 (it)
GB (1) GB2020594B (it)
IT (1) IT1113302B (it)
MX (1) MX148289A (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4466493A (en) * 1981-12-17 1984-08-21 Hed Corporation Reciprocating linear fluid motor
US4505340A (en) * 1982-06-03 1985-03-19 Yantsen Ivan A Hydropneumatic percussive tool
DD210107B1 (de) * 1982-09-27 1989-02-01 Orsta Hydraulik Veb K Doppeltwirkender druckwandler
DE3445418A1 (de) * 1984-06-07 1985-12-12 Veb Kombinat Orsta-Hydraulik, Ddr 7010 Leipzig Doppeltwirkender druckwandler
FR2575792A1 (fr) * 1985-01-09 1986-07-11 Eimco Secoma Amplificateur de pression hydraulique
FR2618092B1 (fr) * 1987-07-17 1989-11-10 Montabert Ets Distributeur hydraulique pour appareil a percussions mu par un fluide incompressible sous pression
FI104961B (fi) * 1996-07-19 2000-05-15 Sandvik Tamrock Oy Painenestekäyttöinen iskuvasara
DE19636659C2 (de) * 1996-09-10 2000-11-23 Krupp Berco Bautechnik Gmbh Fluidbetriebenes Schlagwerk mit automatischer Hubumschaltung
SE536289C2 (sv) * 2011-04-05 2013-08-06 Atlas Copco Rock Drills Ab Hydrauliska slagverk för berg- eller betongavverkande utrustning samt borr- och brytutrustning
ITBA20120019A1 (it) * 2012-03-21 2013-09-22 Tecna Group Srl Demolitore per escavatori con circuito idraulico ottimizzato
ITBA20120055A1 (it) 2012-09-24 2014-03-25 Tecna Group Srl Demolitore per escavatori con pistone e circuito idraulico ottimizzato
CN105916633B (zh) * 2014-01-31 2017-11-14 古河凿岩机械有限公司 液压式冲击装置
US9701003B2 (en) 2014-05-23 2017-07-11 Caterpillar Inc. Hydraulic hammer having delayed automatic shutoff
CH711414A1 (de) * 2015-08-13 2017-02-15 Hatebur Umformmaschinen Ag Vorrichtung zur Erzeugung impulsdynamischer Prozesskräfte.
US10377028B2 (en) * 2016-03-14 2019-08-13 Caterpillar Inc. Hammer protection system and method
EP3369927B1 (en) 2017-03-03 2019-04-24 PistonPower ApS Pressure amplifier
EP3369930B1 (en) 2017-03-03 2019-05-08 PistonPower ApS Double acting hydraulic pressure intensifier
ES2734307T3 (es) * 2017-03-03 2019-12-05 Pistonpower Aps Intensificador de presión hidráulica

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759335A (en) * 1971-12-30 1973-09-18 Bell Lab Inc Mole hammer-cycle control
SE391664B (sv) * 1973-10-23 1977-02-28 Svenska Hymas Ab Anordning vid hydrauliskt drivet slagverktyg
RO74260A (ro) * 1974-04-25 1980-10-30 Oy Tampella Ab,Fi Perforator percutant actionat cu lichid sub presiune
US4020744A (en) * 1974-11-13 1977-05-03 Raymond International Inc. Control of hydraulically powered equipment
DE2512731A1 (de) * 1975-03-22 1976-10-07 Klemm Bohrtech Hydraulisches schlaggeraet
ZA764220B (en) * 1976-07-15 1978-02-22 Compair Sa Ltd Improvements in or relating to hydraulically powered percussive apparatus

Also Published As

Publication number Publication date
FR2421035A1 (fr) 1979-10-26
US4281587A (en) 1981-08-04
CA1135156A (en) 1982-11-09
DE2912426A1 (de) 1979-10-04
FR2421035B1 (it) 1984-10-19
GB2020594B (en) 1982-07-28
MX148289A (es) 1983-04-07
GB2020594A (en) 1979-11-21
ES469097A1 (es) 1980-06-16
IT1113302B (it) 1986-01-20

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