EP0076768B1 - Dispositif de fonçage et d'arrachement pour pieux, tubes, palplanches, tiges, etc. - Google Patents

Dispositif de fonçage et d'arrachement pour pieux, tubes, palplanches, tiges, etc. Download PDF

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Publication number
EP0076768B1
EP0076768B1 EP82420120A EP82420120A EP0076768B1 EP 0076768 B1 EP0076768 B1 EP 0076768B1 EP 82420120 A EP82420120 A EP 82420120A EP 82420120 A EP82420120 A EP 82420120A EP 0076768 B1 EP0076768 B1 EP 0076768B1
Authority
EP
European Patent Office
Prior art keywords
driving
anvil
electromagnetic
hammers
hammer
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
EP82420120A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0076768A1 (fr
Inventor
Georges Jacquemet
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.)
MARTELEC
Original Assignee
MARTELEC
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 MARTELEC filed Critical MARTELEC
Priority to AT82420120T priority Critical patent/ATE13451T1/de
Publication of EP0076768A1 publication Critical patent/EP0076768A1/fr
Application granted granted Critical
Publication of EP0076768B1 publication Critical patent/EP0076768B1/fr
Expired 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
    • E02D11/00—Methods or apparatus specially adapted for both placing and removing sheet pile bulkheads, piles, or mould-pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/064—Means for driving the impulse member using an electromagnetic drive
    • 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

Definitions

  • the present invention relates to a device for driving and tearing of elements such as piles, tubes, sheet piling, rods, etc., which are used in the fields of public works, quarries, mines and drilling industries .
  • the effect of the shocks must be in the direction of the penetration movement, the energy of the shock transmitted to the element to be driven being divided into two components, one causing the setting in vibration of the element, favoring the sliding in the ground, the other component ensuring the displacement of the element.
  • the direction of the shocks applied will be vertical and the direction of the shocks oriented from top to bottom.
  • the present invention aims to eliminate all of these drawbacks by providing a device using an electromagnetic energy source, this device being of simple and robust structure, with a minimum of moving parts, having an operation not influenced by external conditions. temperature and bringing together in a compact assembly all the means necessary for both driving and tearing, the passage from one to the other of these two operations being effected by a simple switching, without any reversal or other displacement of the device.
  • the subject of the invention is a sinking and tearing device for piles, tubes, sheet piles, rods, etc., which essentially comprises two superimposed electromagnetic hammers, arranged along the same axis and acting in opposite directions, between which is mounted a common oscillating mobile mass, suspended elastically, the respective pole pieces of the two hammers constituting anvils, of which the lower one, struck by the mobile mass for driving, is provided at its outer end with means allowing the connection of the elements to darken or tear off, and the upper one, struck by the movable mass for tearing, is connected to the lower one by a shaft or a tube made of non-magnetic material passing right through the movable mass by a hole drilled along the axis of the latter.
  • a driving system and a tearing system which operate on the basis of electrical energy and which use a common striking moving mass, the ends of which can penetrate respectively into the windings two electromagnetic hammers to form the mobile cores, this mobile mass being suspended, for example, between two opposing springs allowing it to oscillate on either side of a rest position.
  • the two electromagnetic hammers of the device object of the invention are used alternately, one used for driving and the other for tearing, and never enter service simultaneously, these two hammers are advantageously connected to a common electrical supply and control system by means of a switch making it possible to direct current pulses at will to the winding of one of the hammers for driving or to the winding of the other hammer for driving tearing of the element connected to the lower anvil. It is understood that, for tearing, the mobile mass attracted by the upper winding strikes the corresponding anvil, which transmits the energy received to the lower anvil via the shaft or the connecting tube, while that for driving the moving mass, attracted by the lower winding, directly hits the anvil to which the elements to be driven are connected.
  • This rotation can be obtained either by driving the upper anvil, or by driving the lower anvil, in particular with the following arrangements.
  • the device comprises, for the rotational drive of the element to be driven, an electric geared motor arranged along the axis of the double electromagnetic hammer and coupled, by means of a grooved output shaft , to the upper anvil, the rotational movement being transmitted by the shaft or the connecting tube to the lower anvil.
  • the device comprises, for driving the element to be driven in rotation, an electric geared motor placed laterally, with respect to the axis of the double electromagnetic hammer, and having its output shaft connected, by via a transmission such as an endless chain, to a hollow rotary element slidably mounted around a corresponding outer profile part of the lower anvil.
  • the connecting element between the two anvils which passes right through the movable mass, is a tube extended by axial bores formed respectively in the two anvils, to constitute a continuous axial passage.
  • This last characteristic is compatible with the presence of means for driving in rotation but, in this case, in order to allow the recovery of the cores or the arrival of the drilling fluid, it will preferably be chosen for said means of driving in rotation the lateral arrangement defined above, so as to free the upper part of the apparatus.
  • the driving and tearing device shown in fig. 1, comprises a central movable mass 1 which can strike, at each of its ends, either on a lower anvil 2 intended for driving, or on an upper anvil 3 intended for tearing.
  • the two anvils 2 and 3 are interconnected by a shaft 4 made of non-magnetic material, passing right through the movable mass 1 through a hole 5 drilled along the axis 6 of the latter.
  • the moving mass 1 is common to two electromagnetic hammers 7 and 8, arranged along the axis 6 and each produced according to French patent No 2430827.
  • the lower hammer 7 comprises a coil 9 surrounded by a shield 10; the lower anvil 2 serves as a fixed pole piece, through its cylindrical part 11 introduced inside the coil 9, while the lower end of the mass 1 serves as a mobile core for the hammer 7 also penetrating into its coil 9
  • the upper hammer 8 comprises a coil 12 surrounded by a shield 13; the upper anvil 3 serves as a fixed pole piece through its cylindrical part 14 introduced inside the coil 12, while the upper end of the mass 1 serves as a movable core for the hammer 8, also penetrating into its coil 12.
  • the movable mass 1 has a flange 15, on either side of which are supported, respectively, two helical springs 16 and 17 antagonistic.
  • the lower spring 16 is compressed between the flange 15 and a ring 18 located above the shield 10 of the lower hammer 7, while the upper spring 17 is compressed between the flange 15 and a ring 19 placed below the shield 13 of the upper hammer 8.
  • the assembly of the two electromagnetic hammers 7 and 8 and their common mobile mass 1 is disposed under extreme housings 20 and central 21 assembled properly. To be used, this whole assembly is mounted on an external support, not shown, for example a slide with the necessary displacement means.
  • the two electromagnetic hammers 7 and 8 are both connected to a common electrical supply and control system, symbolized by a block 22 and produced according to French patent No 2356483 and its addition No 2425302.
  • a switching device 23 makes it possible to direct the current from the electrical discharge circuit to one or the other of the two windings 9 and 12.
  • the operator places the switching device 23 in its position putting in circuit the winding 9 of the lower electromagnetic hammer 7.
  • the lower end of the mobile mass 1 suspended by the springs 16 and 17 strikes the cylindrical part 11 of the lower anvil 2, the flange 24 of which presses against a stop 25.
  • the lower anvil 2 transmits the kinetic energy received from the moving mass 1 to the element to darken, fixed to the lower end of said anvil 2 by an assembly adapted to each application case.
  • the operator places the switching device 23 in its other position switching on the winding 12 of the upper electromagnetic hammer 8.
  • the upper end of the moving mass 1 strikes the cylindrical part 14 of the upper anvil 3, the flange 26 of which comes to rest on a corresponding stop 27.
  • the upper anvil 3 transmits the kinetic energy received from the moving mass 1 to the lower anvil 2 , via the connecting shaft 4, the lower anvil 2 itself transmits this energy to the element to be torn off.
  • the length of the shaft 4 which connects the two anvils 2 and 3 together is such that, when one is in the driving position, the upper anvil 3 cannot receive the shocks in return due to the oscillation of the moving mass 1 caused by the lower hammer 7; conversely, in the tear-off position, the lower anvil 2 will not receive back impacts due to the oscillation of the moving mass 1 caused by the upper hammer 8.
  • a rotation drive of the ele ment to darken is obtained, moreover, by a rotation device disposed above the double electromagnetic hammer 7-8, along the axis 6 of this double hammer.
  • An electric geared motor 28, clamped on the upper cover 41 has its output shaft 29 linked in rotation with the upper anvil 3 by means of grooves allowing the axial movement of this anvil 3.
  • the rotational movement is transmitted by the 'connecting shaft 4 to the lower anvil 2, which itself communicates it to the element to darken.
  • Fig. 2 shows a second embodiment which does not differ from the first as regards the arrangement of the double electromagnetic hammer 7-8, but in which the driving in rotation of the element to be driven is obtained by a device placed laterally .
  • the output shaft 33 of the gear motor 30 carries a pinion 34, connected by an endless chain 35 to another pinion 36 machined with a housing in the form of a hexagon socket along its axis.
  • the pinion 36 is slidably mounted around the lower anvil 2, having a complementary external machining with a hexagon 37, which allows the anvil 2, and therefore the element to be driven, to rotate, without preventing displacement. axial of this anvil 2. All the transmission described above is housed inside the casing 32.
  • the connecting shaft and the anvils can be drilled right through, the shaft in question in this case being replaced by a tube 38 and the anvils 2 and 3 having axial holes, respectively 39 and 40, which extend the tube 38.
  • the upper cover 41 an orifice 42 drilled along the axis 6, there is then a continuous axial passage, for the extraction and recovery of carrots at the upper part of the device, possibly for circulation of fluids used in drilling operations.
  • the previously described driving and tearing device is applicable to various elements such as piles, tubes, sheet piling, rods, etc.
  • the outer end of the lower anvil 2 comprises, for the connection of these elements, means 42 adapted to each application case, for example a threaded head for screwable elements.
  • the invention is more particularly applicable to the field of drilling.
  • the sinking and tearing device object of the invention can be, as illustrated in FIG. 3, suspended from the cable 43 of a crane; in this case, it is advantageous to connect the cable 43 to the top of the body 44 of the device by a flexible element 45, such as a spring or block of rubber.
  • a flexible element 45 such as a spring or block of rubber. The transition from driving to tearing is then done by moving the body 44 of the device relative to the anvils secured to the elements to be driven or torn off.
  • This displacement can be obtained by letting the body 44 of the device rest via the lower stop 25 on the lower anvil 2 (see fig. 1 and 2) for driving, and by pulling the body 44 upwards to bringing the upper anvil 3 into contact with the upper stop 27, for tearing, the flexible hooking element 45 making it possible to absorb the jolts when tearing while avoiding transmitting them to the suspension cable 43.
  • the upper anvil 3 has two lateral ears 46, located outside the body 44 between the two lugs 47 for attaching the device to a cable or other suspension means.
  • Two small electric jacks 48 have their bodies fixed on either side of the upper part of the body 44 of the device, while their rods 49 are connected respectively to the two ears 46, with the interposition of discs or elastic studs 50.
  • This mounting has the advantage of not transmitting vibrations to the cable or other suspension means, the reversing pulse being taken up on the elements to be darkened.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Earth Drilling (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP82420120A 1981-10-02 1982-08-24 Dispositif de fonçage et d'arrachement pour pieux, tubes, palplanches, tiges, etc. Expired EP0076768B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82420120T ATE13451T1 (de) 1981-10-02 1982-08-24 Vorrichtung zum eintreiben und herausziehen von pfaehlen, rohren, spundwaenden, stangen, usw.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8119118 1981-10-02
FR8119118A FR2514049A1 (fr) 1981-10-02 1981-10-02 Dispositif de foncage et d'arrachement pour pieux, tubes, palplanches, tiges, etc.

Publications (2)

Publication Number Publication Date
EP0076768A1 EP0076768A1 (fr) 1983-04-13
EP0076768B1 true EP0076768B1 (fr) 1985-05-22

Family

ID=9262929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82420120A Expired EP0076768B1 (fr) 1981-10-02 1982-08-24 Dispositif de fonçage et d'arrachement pour pieux, tubes, palplanches, tiges, etc.

Country Status (7)

Country Link
US (1) US4468594A (enrdf_load_stackoverflow)
EP (1) EP0076768B1 (enrdf_load_stackoverflow)
JP (1) JPS5869929A (enrdf_load_stackoverflow)
AT (1) ATE13451T1 (enrdf_load_stackoverflow)
CA (1) CA1204729A (enrdf_load_stackoverflow)
DE (1) DE3263759D1 (enrdf_load_stackoverflow)
FR (1) FR2514049A1 (enrdf_load_stackoverflow)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2581100B1 (fr) * 1985-04-29 1987-10-09 Martelec Mouton de battage electro-magnetique
US4799557A (en) * 1985-04-29 1989-01-24 Martelec - Societe Civile Particuliere Electromagnetic pile driver
US5280673A (en) * 1992-02-21 1994-01-25 Electroimpact, Inc. Electromagnetic bolt insertion system
US5241292A (en) * 1992-05-28 1993-08-31 Prime Mover, Inc. Three position electrically operated actuator
US5488997A (en) * 1993-10-19 1996-02-06 Yamada Juki Co., Ltd. Rotary impacting apparatus
DE4343589C1 (de) * 1993-12-21 1995-04-27 Klemm Guenter Fluidbetätigter Schlaghammer
FR2765904B1 (fr) * 1997-07-08 1999-10-08 Jacques Demichelis Marteau electromagnetique a masse ferromagnetique mobile
FR2802949B1 (fr) 1999-12-22 2002-09-27 Durmeyer Entrp Travaux Publics Marteau electromagnetique a masse ferromagnetique mobile
DE10025371A1 (de) * 2000-05-23 2001-11-29 Hilti Ag Handwerkzeuggerät mit elektromagnetischem Schlagwerk
FR2837412A1 (fr) * 2002-03-22 2003-09-26 Technifor Dispositif de marquage en creux par percussions successives
US6695070B1 (en) * 2002-08-05 2004-02-24 Matsushita Electric Works, Ltd. Magnetic impact device and method for magnetically generating impact motion
NZ528332A (en) * 2003-09-22 2006-04-28 Ramet Holdings Ltd Impact driver for driving poles, piles or posts including linear induction motor
US10149711B2 (en) 2012-03-30 2018-12-11 Depuy Mitek, Llc Surgical impact tool
CA3019216A1 (en) 2016-08-31 2018-03-08 DePuy Synthes Products, Inc. Orthopedic impacting device having a launched mass delivering a controlled, repeatable & reversible impacting force
US11083512B2 (en) 2016-08-31 2021-08-10 DePuy Synthes Products, Inc. Orthopedic device delivering a controlled, repeatable impact
DE102018209564B4 (de) * 2018-06-14 2021-05-20 Krinner Innovation Gmbh Eindrehvorrichtung mit schlagwirkung
CN111287183B (zh) * 2020-03-27 2021-08-17 安徽一诺青春工业设计有限公司 一种道路建设的打桩装置
GB2628084B (en) * 2023-03-07 2025-06-11 De Soutter Medical Ltd Orthopaedic impactor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR25277E (fr) * 1919-07-10 1923-01-23 Pieux à vis en béton armé pour fondations
US1753454A (en) * 1925-03-30 1930-04-08 Central Electric Tool Company Electric percussive tool
US2241364A (en) * 1938-01-22 1941-05-06 Hulbert Clinton Horace Electromagnetic hammer
FR1107275A (fr) * 1953-06-18 1955-12-29 Metallwarenfabrik Markdorf Joh Dispositif à commande électrique pour outils à mouvoir axialement
GB821164A (enrdf_load_stackoverflow) * 1956-09-10
GB1125853A (en) * 1967-01-16 1968-09-05 Marutai Doboku Company Ltd A pile driving apparatus including earth boring equipment
FR2085507A1 (enrdf_load_stackoverflow) * 1970-04-28 1971-12-24 Drye Lucien
FR2356483A1 (fr) * 1976-06-28 1978-01-27 Jacquemet Georges Appareil de percussion electro-magnetique
JPS5645385A (en) * 1979-09-18 1981-04-25 Hideaki Kishida Electromagnetic hammer

Also Published As

Publication number Publication date
JPS5869929A (ja) 1983-04-26
DE3263759D1 (en) 1985-06-27
CA1204729A (fr) 1986-05-20
FR2514049B1 (enrdf_load_stackoverflow) 1984-01-13
US4468594A (en) 1984-08-28
EP0076768A1 (fr) 1983-04-13
JPH0354211B2 (enrdf_load_stackoverflow) 1991-08-19
ATE13451T1 (de) 1985-06-15
FR2514049A1 (fr) 1983-04-08

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