WO2014137764A4 - Hydraulic hammer - Google Patents

Hydraulic hammer Download PDF

Info

Publication number
WO2014137764A4
WO2014137764A4 PCT/US2014/019162 US2014019162W WO2014137764A4 WO 2014137764 A4 WO2014137764 A4 WO 2014137764A4 US 2014019162 W US2014019162 W US 2014019162W WO 2014137764 A4 WO2014137764 A4 WO 2014137764A4
Authority
WO
WIPO (PCT)
Prior art keywords
piston
ram
hydraulic
piston chamber
hydraulic fluid
Prior art date
Application number
PCT/US2014/019162
Other languages
French (fr)
Other versions
WO2014137764A1 (en
Inventor
Robert James ZIMMERMAN
Bryce Everett HUFF
Kurt N. Winters
Original Assignee
Global Piling Solutions, L.L.C.
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 Global Piling Solutions, L.L.C. filed Critical Global Piling Solutions, L.L.C.
Priority to CA2901798A priority Critical patent/CA2901798A1/en
Publication of WO2014137764A1 publication Critical patent/WO2014137764A1/en
Publication of WO2014137764A4 publication Critical patent/WO2014137764A4/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/10—Power-driven drivers with pressure-actuated hammer, i.e. the pressure fluid acting directly on the hammer structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

A piston cylinder is formed inside a ram and is fitted with a piston attached to a stationary hollow piston rod, creating an upper piston chamber for receiving pressurized hydraulic fluid, which causes the ram to rise as the volume of the upper piston chamber is expanded due to the hydraulic pressure and increasing volume of hydraulic fluid. When the ram reaches a predetermined desired height, hydraulic pressure is released by opening a directional valve, allowing the ram to drop. A lower piston chamber is sealed and filled with gas. A moveable shuttle member reciprocates up and down inside a hollow piston rod in response to the changing volume of the lower piston cylinder, facilitating the evacuation of hydraulic fluid from the upper piston chamber. An alternative embodiment uses a single fluid and has no shuttle member.

Claims

AMENDED CLAIMS received by the International Bureau on 03 September 2014 (03.09.2014) We claim:
1. A hydraulic hammer comprising a ram and a piston cylinder formed inside said ram, a piston seated in said cylinder, with said piston fixed to a lower end of a connecting rod with an upper end of said connecting rod fixed to a support member above said ram, forming an upper piston chamber above a top surface of said piston and a lower piston chamber below a lower surface of said piston, and hydraulic means operatively connected to said ram for moving said ram between a first position and a second position comprising liquid hydraulic fluid introduced and removed from said upper piston chamber and liquid hydraulic fluid or gas hydraulic fluid in said lower piston chamber.
2. A hydraulic hammer in accordance with claim 1 wherein said hydraulic means further comprises a source of pressurized hydraulic fluid operatively connected to an upper piston chamber created by a piston inserted into said cylinder and a cylinder head above said piston for creating hydraulic pressure inside said upper piston chamber and wherein said piston is fixed to a lower end of a piston rod and means for selectively relieving hydraulic fluid pressure inside said upper piston chamber and said lower piston chamber is filled with a gas.
3. A hydraulic hammer in accordance with claim 1 wherein said piston rod is hollow and further comprising a shuttle member seated within said hollow piston rod, said hollow piston rod having an upper end fixed to a supporting member and wherein said shuttle member is free to reciprocate within said hollow piston rod.
4. A hydraulic hammer in accordance with claim 3 wherein said pressure relieving means further comprises a valve in a pressurized hydraulic fluid source that can be opened to allow pressurized hydraulic fluid to flow into a pressure relief line.
5. A hydraulic hammer in accordance with claim 4 wherein said pressure relief line further comprises a passageway to an upper surface of said shuttle member inside said hollow piston rod.
6. A hydraulic hammer in accordance with claim 3 wherein said source of pressurized hydraulic fluid operatively connected to said upper piston chamber further comprises a hydraulic fluid conduit tube larger in diameter than said hollow piston rod and concentric with said hollow piston rod.
7. A hydraulic hammer in accordance with claim 5 further comprising a lower piston chamber and a cavity of said hollow piston rod below a lower surface of said shuttle member that further comprises a sealed cavity that is filled with a substantially inert gas under pressure.
8. A hydraulic hammer in accordance with claim 7 wherein the volume of said lower piston chamber and said cavity of said hollow piston rod below a lower surface of said shuttle member form a variable volume cavity that varies in volume as said ram moves between said first and second positions.
9. A hydraulic hammer in accordance with claim 2 further comprising upper and lower stop members seated inside said hollow piston rod for constraining the reciprocal movements of said shuttle member.
10. A hydraulic hammer in accordance with claim 2 wherein said cylinder further comprises a sleeve inserted into said cylinder.
11. A hydraulic hammer comprising: a ram; a cylinder formed inside said ram and sealed at its lower end and sealed at its upper end by a cylinder head; a piston seated in said cylinder and dividing said cylinder into an upper piston chamber and a lower piston chamber; and a hollow piston rod having an upper end fixed to a supporting member and a lower end fixed to said piston; wherein said lower piston chamber below a lower surface of said piston and a cavity of said hollow piston rod below a lower surface of said shuttle member further comprise a sealed cavity that is filled with gas under pressure.
12. A hydraulic hammer in accordance with claim 11 further comprising means for sequentially introducing and removing hydraulic fluid under pressure to said upper piston chamber.
13. A hydraulic hammer in accordance with claim 1 1 further comprising means for releasing hydraulic pressure from said upper piston chamber.
14. A hydraulic hammer in accordance with claim 13 further comprising means for applying a force to a lower surface of said piston for accelerating the relief of pressure from the hydraulic fluid in said upper piston chamber and thereby accelerating the falling of said ram.
15. A hydraulic hammer in accordance with claim 14 wherein said force applying means further comprises a shuttle member seated inside said hollow piston rod and free to reciprocate between upper and lower stop members.
16. A hydraulic hammer in accordance with claim 15 further comprising a sealed chamber filled with gas under pressure, with said sealed chamber comprising said lower piston chamber and a cavity in said hollow piston rod up to a lower surface of said shuttle member, with said lower piston chamber and said cavity in said hollow piston rod being in fluid communication with each other.
17. A hydraulic hammer in accordance with claim 16 wherein said gas under pressure when acted upon by a varying volume of said variable volume cavity during movements of said ram and said shuttle member provides a spring action expansion force to said lower surface of said piston to accelerate the emptying of hydraulic fluid from said upper piston chamber.
18. A hydraulic hammer comprising: a ram; a cylinder formed inside said ram and sealed at its lower end and at its upper end; a piston seated in said cylinder and dividing said cylinder into an upper piston chamber and a lower piston chamber; a hollow piston rod having an upper end fixed to a supporting member and a lower end fixed to said piston; and means for applying hydraulic fluid pressure to said upper piston chamber for raising said ram and means for relieving said hydraulic fluid pressure in said upper piston cylinder for allowing said ram to fall and means for introducing hydraulic fluid into a lower piston chamber as said ram falls for accelerating the falling of said ram; wherein said lower piston chamber and a cavity of said hollow piston rod below a lower surface of said shuttle member combine to further comprise a sealed cavity that is filled with a substantially inert gas under pressure.
19. A hydraulic hammer in accordance with claim 18 further comprising a receptacle attached to a lower surface of said piston and depending therefrom and a well beneath said receptacle formed in said ram whereby the volume of hydraulic fluid to be pumped is reduced.
20. A hydraulic hammer in accordance with claim 19 further comprising means for supplying hydraulic fluid under pressure to said upper piston cylinder and means for relieving the pressure on the hydraulic fluid and for emptying the hydraulic fluid from said upper piston chamber and means for applying a downward acceleration force on said ram, said accelerating means further comprising means for controlling the magnitude of said downward acceleration force.
PCT/US2014/019162 2013-03-04 2014-02-27 Hydraulic hammer WO2014137764A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2901798A CA2901798A1 (en) 2013-03-04 2014-02-27 Hydraulic hammer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/784,687 US20130199813A1 (en) 2013-03-04 2013-03-04 Hydraulic Hammer
US13/784,687 2013-03-04

Publications (2)

Publication Number Publication Date
WO2014137764A1 WO2014137764A1 (en) 2014-09-12
WO2014137764A4 true WO2014137764A4 (en) 2014-10-30

Family

ID=48901901

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/019162 WO2014137764A1 (en) 2013-03-04 2014-02-27 Hydraulic hammer

Country Status (3)

Country Link
US (2) US20130199813A1 (en)
CA (1) CA2901798A1 (en)
WO (1) WO2014137764A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9908233B2 (en) * 2013-07-09 2018-03-06 Arconic Inc. Fastener installation tool
RU2672118C1 (en) * 2015-04-17 2018-11-12 Юнттан Ой Method for driving piles
WO2016174994A1 (en) * 2015-04-30 2016-11-03 日立工機株式会社 Driving machine
GB2551774B (en) * 2016-06-30 2019-02-20 Dawson Const Plant Ltd Pile Hammer
CN111424662A (en) * 2020-03-03 2020-07-17 广东精铟海洋工程股份有限公司 Damping system and damping control method for pile hammer

Family Cites Families (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US711859A (en) * 1900-12-24 1902-10-21 William M Holden Pneumatic tool.
US904528A (en) * 1908-01-18 1908-11-24 James Hamilton Power-hammer.
US1077469A (en) * 1911-12-02 1913-11-04 August A Goubert Power-driven hammer.
US1122591A (en) * 1913-04-29 1914-12-29 Francis L Pruyn Power-hammer.
DE371585C (en) * 1915-10-18 1923-03-16 Friedrich Ritter Von Merkl Dr Compressed air or steam ram
US1763485A (en) * 1926-12-17 1930-06-10 Stern Ottokar Machine for laying foundations of structures
US2068045A (en) * 1933-08-16 1937-01-19 Wohlmeyer Josef Piston pile driver
FR780388A (en) * 1934-10-26 1935-04-25 Method and apparatus for driving piles, pilings, sheet piles and the like
DE686239C (en) * 1938-04-08 1940-01-05 Demag Akt Ges Ram operated by a gaseous propellant
FR870113A (en) * 1940-01-03 1942-03-03 Menck & Hambrock Gmbh Control device for forging hammers
US2392061A (en) * 1940-01-03 1946-01-01 Pfeiffer Paul Regulating device for pile-driver monkeys
US2323321A (en) * 1940-12-26 1943-07-06 Samuel M Futral Hydraulic tubing foot
US2703558A (en) * 1951-08-30 1955-03-08 Modern Products Inc Pressure return cylinder and piston unit
US2798363A (en) * 1956-05-17 1957-07-09 Raymond Concrete Pile Co Hydraulic pile driving hammer
US2972871A (en) * 1957-01-03 1961-02-28 Jr Edward W Foley Apparatus for driving a pile shell
US3053329A (en) * 1960-02-08 1962-09-11 William R Fairchild Pile driver
US3216327A (en) * 1962-09-28 1965-11-09 John R Johansson Device for hydraulically or pneumatically controlling reciprocating movements of an operative means
US3204534A (en) * 1963-01-24 1965-09-07 Raymond Int Inc Drawbar multiplier
SU335293A1 (en) * 1967-01-09 1972-04-11 А. А. Астафьев , М. С. Потапова TOOL STEEL
DE1784134C3 (en) * 1968-07-11 1974-10-24 Koehring Gmbh, 2000 Hamburg Single acting steam hammer
US3788402A (en) * 1970-12-29 1974-01-29 Bolt Associates Inc Automatically self-regulating variable-stroke, variable-rate and quiet-operating pile driver apparatus
US4033139A (en) * 1974-02-08 1977-07-05 Frederick Leonard L Pile driving hammer, apparatus and method
US4026193A (en) * 1974-09-19 1977-05-31 Raymond International Inc. Hydraulically driven hammer system
US4020744A (en) * 1974-11-13 1977-05-03 Raymond International Inc. Control of hydraulically powered equipment
US4084648A (en) * 1976-02-12 1978-04-18 Kajima Corporation Process for the high-pressure grouting within the earth and apparatus adapted for carrying out same
GB1569293A (en) * 1976-02-20 1980-06-11 Bsp Int Foundation Pile drivers
SU655824A1 (en) * 1976-07-07 1979-04-05 Институт Горного Дела Со Ан Ссср Pneumatic percussion device for drilling boreholes
SU1043260A1 (en) * 1978-09-04 1983-09-23 Всесоюзный научно-исследовательский институт строительного и дорожного машиностроения Hydraulic pile driver
DE3047375C2 (en) * 1980-12-16 1985-09-05 Koehring Gmbh, 2000 Hamburg Submersible pile driving device
CH656164A5 (en) * 1981-03-28 1986-06-13 Eugen Zinck AIR TRAMS.
GB2165279B (en) * 1984-10-03 1987-12-23 Inst Gornogo Dela Sibirskogo O Air-operated reversible percussive action machine
RU2059045C1 (en) * 1993-01-14 1996-04-27 Институт гидродинамики им.М.А.Лаврентьева СО РАН Pile-driving hydraulic beater
DE19529538A1 (en) * 1995-08-11 1997-02-13 Delmag Maschinenfabrik ram
FR2743384B1 (en) * 1996-01-09 1999-01-22 Freyssinet Int Stup CONNECTION DEVICE FOR ELEMENTS OF A CIVIL ENGINEERING STRUCTURE
US6557647B2 (en) * 2000-05-30 2003-05-06 American Piledriving Equipment, Inc. Impact hammer systems and methods
RU2333317C2 (en) * 2006-02-01 2008-09-10 Общество с ограниченной ответственностью "РОПАТ плюс" (ООО "РОПАТ плюс") Hydrohammer
US7563056B2 (en) * 2006-03-28 2009-07-21 Port-of-Call USA, Inc. Telescoping piling apparatus and method
DK2325397T3 (en) * 2009-11-24 2012-10-22 Ihc Holland Ie Bv System and method for installing foundation elements in an underwater foundation
DK2526231T3 (en) * 2010-01-19 2018-07-02 Univ Washington Through Its Center For Commercialization Foundation pile for minimizing noise transmission and method for pile driving
US9816246B2 (en) * 2010-01-19 2017-11-14 University Of Washington Through Its Center For Commercialization Pile with sound abatement for vibratory installations
US9617702B2 (en) * 2010-01-19 2017-04-11 University Of Washington Through Its Center For Commercialization Pile with sound abatement
US9790962B2 (en) * 2011-10-10 2017-10-17 Angus Peter Robson Accumulator
FI126410B (en) * 2013-12-10 2016-11-15 Pentti Heinonen Peel method and device
DE102014108848A1 (en) * 2014-06-25 2015-12-31 Construction Tools Gmbh Device for pressure monitoring

Also Published As

Publication number Publication date
US20170030043A1 (en) 2017-02-02
CA2901798A1 (en) 2014-09-12
WO2014137764A1 (en) 2014-09-12
US20130199813A1 (en) 2013-08-08

Similar Documents

Publication Publication Date Title
WO2014137764A4 (en) Hydraulic hammer
FI62480C (en) SLAGANORDNING
CA2554856A1 (en) Hydraulic ram pump
CN203585190U (en) Multistage pressure-limiting regulating hydraulic buffer
CN101776104A (en) Single-acting plunger type buffering hydraulic oil cylinder
CN103597239B (en) Vibration damping device
CN103899596A (en) Hydraulic lock with pilot one-way valve
US20160318166A1 (en) Impact-driven tool
CN202707664U (en) Ultrahigh pressure unloading speed regulation device
CN203822757U (en) Hydraulic lock provided with pilot one-way valve
CN105196826A (en) Automatic inflation/deflation hydro-pneumatic suspension device
WO2011147613A3 (en) Self-pumping suspension strut
CN210950060U (en) Ultrahigh pressure hydraulic safety valve
CN209637730U (en) Water drainage gas production device and its gas production pump
CN202811627U (en) Excavating machine oil cylinder with safety valve
EP2655748B1 (en) Hammering apparatus
CN207728917U (en) A kind of novel power station water system hydraulic valve
JP2020179135A (en) Coffee spoon with adjustable length
CN202418106U (en) Two-stage total free buffer oil cylinder of forklift
CN203670336U (en) Prefill valve
CN203925926U (en) Pressure gauge high-pressure air feed equipment
CN202659627U (en) Buffer device for heavy workpieces
RU2527260C1 (en) Hydraulic ram
CN203453166U (en) Two-stage piston check valve core
CN203516289U (en) High-speed air cylinder buffer device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14759893

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase in:

Ref document number: 2901798

Country of ref document: CA

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct app. not ent. europ. phase

Ref document number: 14759893

Country of ref document: EP

Kind code of ref document: A1