EP2924170A1 - Marteau batteur - Google Patents

Marteau batteur Download PDF

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Publication number
EP2924170A1
EP2924170A1 EP14162392.6A EP14162392A EP2924170A1 EP 2924170 A1 EP2924170 A1 EP 2924170A1 EP 14162392 A EP14162392 A EP 14162392A EP 2924170 A1 EP2924170 A1 EP 2924170A1
Authority
EP
European Patent Office
Prior art keywords
piston
cylinder
lubricant
pile hammer
hammer according
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.)
Withdrawn
Application number
EP14162392.6A
Other languages
German (de)
English (en)
Inventor
Matthias Heichel
Leopold Jerch
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.)
Delmag GmbH and Co KG
Original Assignee
Delmag GmbH and Co KG
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 Delmag GmbH and Co KG filed Critical Delmag GmbH and Co KG
Priority to EP14162392.6A priority Critical patent/EP2924170A1/fr
Priority to US14/619,269 priority patent/US20150275456A1/en
Priority to CN201510138475.1A priority patent/CN104947666A/zh
Publication of EP2924170A1 publication Critical patent/EP2924170A1/fr
Withdrawn legal-status Critical Current

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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
    • E02D7/12—Drivers with explosion chambers
    • E02D7/125—Diesel drivers
    • 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
    • E02D7/12—Drivers with explosion chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/26—Lubricating

Definitions

  • the invention relates to a hammer, comprising a cylinder, a displaceably guided in the cylinder and a piston slidably guided in the cylinder percussion piece according to the preamble of patent claim 1.
  • Such Rammhoter which are regularly referred to as diesel hammers or as diesel bears, especially for foundation work in the construction industry for driving in piles such as concrete pillars, iron girders, sheet piling or the same in a building ground used.
  • the piston is pulled by means of a notching up and released at a certain height, whereupon he falls under the action of gravity down.
  • the piston actuates a fuel pump when falling, whereby one or more injectors fuel, especially diesel oil is supplied, which inject the fuel into the combustion chamber of the cylinder.
  • the invention aims to remedy this situation.
  • the invention has for its object to provide a piling hammer, in which, in particular in the partial load range, the flowing in the combustion chamber amount of lubricant is reduced.
  • a pile hammer in which, in particular in the partial load range, the amount of lubricant flowing into the combustion chamber is reduced.
  • the lubricant dispenser is set up such that the lubricant delivery is effected by the impact vibration of the piston, an adjustment of the amount of lubricant to the respective operating conditions of the hammer is achieved.
  • the lubricant supply is generated by the impact shock of the piston.
  • the lubricant dispenser on a control module, which is connected to a sensor for detecting the jump height of the piston (2) and / or the stroke rate of the piston (2).
  • the lubricator comprises a piston which is arranged in a housing and limits a lubricant space for receiving the lubricant, in which a lubricant line opens and which is biased by a spring element, wherein the lubricant line is closed by a valve, the over an inertial mass is actuated.
  • a simple mechanical and reliable lubricant quantity control is achieved.
  • the inertial mass in the lubricator is moved causing the valve to be actuated, thereby forcing the lubricant pressurized by the preloaded piston through the lubricant line.
  • the dosage of the lubricant quantity is thus dependent on the impact energy of the piston of the hammer.
  • the inertial mass of the lubricator With a hard impact (high impact energy), the inertial mass of the lubricator is accelerated more and thus lays back a larger way, whereby a longer opening time of the valve is effected. As a result, a larger amount of lubricant is pressed through the lubricant line.
  • the inertial mass is only slightly accelerated and thus puts only a shorter way back, causing a shorter opening time of the valve is effected. In this case, only a smaller amount of lubricant is forced through the lubricant line.
  • a plain bearing bush is arranged in the cylinder at the top, in which the piston is guided. This reduces the amount of lubricant required for lubrication, thereby minimizing the amount of unburned lubricant entering the environment.
  • an end piece is arranged on the cylinder, which is elastically connected to the cylinder and forms a catching groove for the piston, which for this purpose has a paragraph, wherein the plain bearing bush is arranged adjacent to this catch groove in the cylinder.
  • the elastic connection of the end ring with the cylinder comprises an arrangement of friction springs.
  • the diesel ram selected as an exemplary embodiment comprises a cylinder 1 which is open on both sides and which can regularly have a length of 3 to 8 meters and a diameter of 0.2 to 1.5 meters.
  • a piston 2 is slidably disposed in the cylinder 1 a.
  • a coaxial to this impact piece 3 engages slidably in the open lower end of the cylinder 1 a.
  • an annular bearing unit 9 is fixed, in which a middle shaft portion 31 of the hammering piece 3 is guided tightly and displaceably, which has a relation to the inner diameter of the cylinder 1 reduced outer diameter.
  • the diesel ram is slidably mounted on arranged on the cylinder 1 guide jaws 13 along a Switzerland cartiklers.
  • a striking plate 32 located below the cylinder 1, the outwardly directed lower convex boundary surface 33 cooperating, in use, with the upper end of a driven pile to be driven in, for example a sheet pile element.
  • a piston portion 34 is formed with a plurality of circumferential, axially spaced sealing rings which run on the inner circumferential surface 11 of the cylinder 1.
  • a combustion chamber 12 is limited together with the underside of the piston 2 and the inner circumferential surface 11 of the cylinder 1.
  • the combustion chamber 12 of the cylinder 1 facing end face of the hammer 3 is ground flat with a flat fuel bowl 30.
  • a damping ring 91 is arranged between the impact plate 32 of the hammer 3 and the bearing unit 9 of the cylinder 1.
  • a further damping ring 92 is arranged adjacent to the position unit 9 between the upper side of the layer unit 9 and the underside of the piston section 34 of the striking piece 3.
  • hammer 3 runs in the interior of the cylinder 1 with a circumferential, axially spaced-apart sealing rings 93 provided lower working end 23 of the piston 2.
  • the lower free, ground flat surface 21 of the piston 2 is offset by a radially circumferential step.
  • a mass portion 22 is formed, which extends into the upper portion of the cylinder 1 inside.
  • a catch piston ring 24 is arranged on the piston 2, whose outer diameter projects beyond the outer diameter of the piston 2 in this area.
  • an injection device 4 On the peripheral wall of the cylinder 1, an injection device 4 is arranged, which comprises a fuel pump 41 which is connected via a line 43 to the injection nozzle 42. The inlet of the fuel pump 41 is fed via a fuel tank 5 with diesel oil.
  • the fuel pump 41 which is connected to the fuel tank 5 via the line 43, has a prestressed pump lever 44 projecting into the interior of the cylinder 1, via which it is driven when the falling piston 2 passes.
  • the injection nozzle 42 is designed and aligned such that the discharged fuel is injected in a substantially continuous beam approximately centrally on the end face of the hammer 3.
  • a lubricator 51 is arranged on the cylinder 1, which is connected to distributed in the circumferential direction of the cylinder 1 lubricant nozzles. Through the lubricant nozzles, the lubricant between the piston 2 and the inner circumferential surface 11 of the cylinder 1 is given.
  • the lubricator 51 comprises a housing 52 which is provided at its upper end with fastening threads 552 for attachment to the outer wall of the cylinder 1.
  • a piston 53 is arranged, which is biased by a spring 531 and sealed against the inner wall of the housing 52 by means of a seal 532.
  • a level control rod 533 is formed, which penetrates the spring and the top side of the housing 52.
  • the piston 53 defines a lubricant space 54, which can be filled with lubricant via a refill 41.
  • two lubricant lines 542 are arranged, which connect the lubricant space 54 with the bottom-side lubricant outlet 543.
  • an inner housing 55 On the bottom piece 522 inside the housing 52, an inner housing 55 is fixed, which receives an inertial mass 551.
  • the inertial mass 551 is connected to a valve 556 which is disposed in the lubricant outlet 543 and biased by a spring 561.
  • the valve 56 Upon actuation of the valve 56, the connection between the lubricant lines 542 and the lubricant outlet 543 is released, whereby the over the biased piston 53 pressurized lubricant of the lubricant space 54 is pressed through the lubricant outlet 543.
  • the piston 53 sinks within the housing 2, whereby the oil level control rod 533 is lowered.
  • a fill level reduction can be seen directly visually on the basis of the protruding from the housing part of the level control rod 533.
  • About the refill pipe 541 is a replenishment of the lubricant space 54 with lubricant.
  • a radially outwardly extending, circumferential flange portion 14 is disposed on the cylinder 1.
  • the flange 14 opens into an orthogonal to this employed cylinder piece 141, by a spring receptacle 142 on one side and on the opposite side a Flanschfact 143 for the flange 61 of the end ring 6 is formed.
  • a circumferential groove 144 for receiving the peripheral projection 62 of the end ring 6 is further introduced into the inner wall of the cylinder 1.
  • a bearing groove 145 which receives a plain bearing bush 19 which bears against the projection 62 of the end ring 6.
  • the end ring 6 is formed substantially hollow cylindrical and spaced from its cylinder 1 end facing a radially outwardly cantilevered flange 61, whereby below the flange 61, a circumferential projection 62 is formed.
  • the projection 62 is located in the groove 144 of the cylinder 1, wherein the projection 62 protrudes inwardly beyond the groove 144, which in turn a catch groove 63 is formed, against which the plain bearing bushing 19 is applied.
  • each corresponding holes 64, 146 are introduced, are guided by the screws 18.
  • annular friction spring package 7 is arranged, which rests on the opposite side of the flange 14 on a carriage 17 which is slidably disposed between the outer shell of the cylinder 1 and the inner surface of the cylinder piece 141 ,
  • the friction spring assembly 7 and the carriage 17 are provided with holes corresponding to the holes 146 of the flange 14 to these aligned, into which the screws 18 are guided.
  • a nut 181 is screwed in each case, via which the carriage 37 is braced against the friction spring packet 7, which bears against the flange part 14.
  • the pile hammer described above operates as follows: In the initial state of the piston 2 is raised via a - not shown - release device in an upper position. After disengaging the piston 2, this falls under the action of gravity down, closes the working nozzle 16 and actuated with its end face 21 the pump lever 44 of the injector 4, which is sprayed through the injector 42 fuel to the fuel bowl 30 of the hammer 3. Impact atomization forms an ignitable mixture of fuel droplets and air. With the impact of the piston 2 on the hammer 3 is by the hammer 3 and exerted over this on the Rammgut a downward force, which drives this further into the ground.
  • a sensor for detecting the jump height is arranged on the outside of the cylinder (1), which is connected to a control device, via which a metered supply of lubricant takes place on the basis of the data detected by the sensor.

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)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP14162392.6A 2014-03-28 2014-03-28 Marteau batteur Withdrawn EP2924170A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP14162392.6A EP2924170A1 (fr) 2014-03-28 2014-03-28 Marteau batteur
US14/619,269 US20150275456A1 (en) 2014-03-28 2015-02-11 Pile hammer
CN201510138475.1A CN104947666A (zh) 2014-03-28 2015-03-27 撞锤

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14162392.6A EP2924170A1 (fr) 2014-03-28 2014-03-28 Marteau batteur

Publications (1)

Publication Number Publication Date
EP2924170A1 true EP2924170A1 (fr) 2015-09-30

Family

ID=50389325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14162392.6A Withdrawn EP2924170A1 (fr) 2014-03-28 2014-03-28 Marteau batteur

Country Status (3)

Country Link
US (1) US20150275456A1 (fr)
EP (1) EP2924170A1 (fr)
CN (1) CN104947666A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200033008A1 (en) * 2018-07-26 2020-01-30 David Baker Chip fuel feeder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579918A (en) * 1980-06-18 1982-01-19 Mitsubishi Heavy Ind Ltd Lubricating oil feeder for internal combustion system pile driving equipment
DE10210979A1 (de) * 2002-03-13 2003-09-25 Delmag Gmbh & Co Kg Dieselbär, Hydraulikbär oder dgl.

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755783A (en) * 1953-06-18 1956-07-24 Mckiernan Terry Corp Free piston internal combustion pile hammer
US2857888A (en) * 1957-05-17 1958-10-28 Syntron Co Portable internal combustion percussion tools
US3679005A (en) * 1969-10-24 1972-07-25 Ishikawajima Harima Heavy Ind Diesel 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
US3721095A (en) * 1971-08-23 1973-03-20 Bolt Associates Inc Controllable force method and system of driving piles
US3923017A (en) * 1971-11-06 1975-12-02 Delmag Maschinenfabrik Arrangement for injection nozzle and exhaust openings in a diesel assisted ram
DE2155310C3 (de) * 1971-11-06 1979-03-01 Delmag-Maschinenfabrik Reinhold Dornfeld Gmbh + Co, 7300 Esslingen Brennstoff-Einspritzpumpe für Dieselrammen
US3967688A (en) * 1973-08-14 1976-07-06 Mitsubishi Jukogyo Kabushiki Kaisha Fuel injection device for an impact atomization-type diesel pile hammer
US4109475A (en) * 1974-12-10 1978-08-29 Van Kooten B.V. Pile-driving ram and method of controlling the same
US3958647A (en) * 1975-06-04 1976-05-25 Bolt Associates, Inc. Powerful submersible deepwater pile driver powered by pressurized gas discharge
NL7513421A (nl) * 1975-11-17 1977-05-20 Kooten Bv V Cilinderstuk voor een heiblok.
US4377355A (en) * 1979-07-31 1983-03-22 Bolt Technology Corporation Quiet bouncer driver thruster method with pressurized air chamber encircling massive bouncing piston
US4473123A (en) * 1982-08-05 1984-09-25 Raymond International Builders, Inc. Diesel hammer capable of delivering uplift blows and method of using same
US4523647A (en) * 1983-03-16 1985-06-18 International Construction Equipment, Inc. Power hammer
US4580641A (en) * 1983-04-28 1986-04-08 Raymond International Builders, Inc. Method and apparatus for starting diesel type hammers
DE3545880A1 (de) * 1985-12-23 1987-06-25 Lindenmeyer Gmbh & Co Geb Dieselramme
DE19529538A1 (de) * 1995-08-11 1997-02-13 Delmag Maschinenfabrik Ramme
US5727639A (en) * 1996-03-11 1998-03-17 Lee Matherne Pile driving hammer improvement
DE10115682A1 (de) * 2001-03-29 2002-10-10 Delmag Gmbh & Co Kg Dieselbär
DE10115681A1 (de) * 2001-03-29 2002-10-10 Delmag Gmbh & Co Kg Dieselbär
US6736218B1 (en) * 2001-04-16 2004-05-18 American Piledriving Equipment, Inc. Diesel hammer systems and methods
US7404449B2 (en) * 2003-05-12 2008-07-29 Bermingham Construction Limited Pile driving control apparatus and pile driving system
DE102004062043A1 (de) * 2004-12-23 2006-07-13 Delmag Gmbh & Co. Kg Dieselhammer
US7926690B1 (en) * 2007-06-13 2011-04-19 Tippmann Sr Dennis J Combustion powered driver
US8763719B2 (en) * 2010-01-06 2014-07-01 American Piledriving Equipment, Inc. Pile driving systems and methods employing preloaded drop hammer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579918A (en) * 1980-06-18 1982-01-19 Mitsubishi Heavy Ind Ltd Lubricating oil feeder for internal combustion system pile driving equipment
DE10210979A1 (de) * 2002-03-13 2003-09-25 Delmag Gmbh & Co Kg Dieselbär, Hydraulikbär oder dgl.

Also Published As

Publication number Publication date
US20150275456A1 (en) 2015-10-01
CN104947666A (zh) 2015-09-30

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