EP2149403A1 - Vibrator mit variablem Drehmoment, der einen Phasenschieber mit verringertem Spiel verwendet - Google Patents

Vibrator mit variablem Drehmoment, der einen Phasenschieber mit verringertem Spiel verwendet Download PDF

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Publication number
EP2149403A1
EP2149403A1 EP09305650A EP09305650A EP2149403A1 EP 2149403 A1 EP2149403 A1 EP 2149403A1 EP 09305650 A EP09305650 A EP 09305650A EP 09305650 A EP09305650 A EP 09305650A EP 2149403 A1 EP2149403 A1 EP 2149403A1
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EP
European Patent Office
Prior art keywords
drive shaft
vibrator
aforesaid
tubular
transmission
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.)
Granted
Application number
EP09305650A
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English (en)
French (fr)
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EP2149403B1 (de
Inventor
Mathieu Jehanno
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P T C
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Classifications

    • 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
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
    • B06B1/166—Where the phase-angle of masses mounted on counter-rotating shafts can be varied, e.g. variation of the vibration phase
    • 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
    • E02D7/18—Placing by vibrating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18344—Unbalanced weights

Definitions

  • the present invention relates to a variable moment vibrator using a reduced-clearance phase shifter.
  • variable moment vibrator usable in particular, but not exclusively, to the depression, in the ground, of objects such as piles or sheet piles, and having reduced clearance.
  • the vibrators commonly used in this type of application involve at least one pair of eccentric flyweights with respect to their drive axis and means for driving in rotation at the same speed but in reverse the two drive axes.
  • the vibrators involve at least two eccentric flyweight trains each comprising at least two eccentric flyweights rotatably mounted around integral shafts of two respective gears which mesh with each other so as to rotate in direction reverse relative to each other, a motor comprising at least a first motor coupled directly or indirectly to the first feeder train and a phase shifter engaged with the two flyweights trains.
  • the structure of the vibrator is not optimized in terms of maintenance given the reduced accessibility to the phase shifter and moving parts, the latter being, for the most part, particularly bulky and heavy.
  • the invention more particularly aims to eliminate these disadvantages.
  • variable moment vibrator comprising at least two feeder trains each comprising at least two eccentric flyweights driven in rotation by two pinions which mesh with one another so as to turn in the opposite direction one relative to each other, at least one of said trains being driven by a motor, the two trains being coupled to each other by a remotely controllable phase shifter, said phase shifter comprising two coaxial drive shafts provided with two respective gears in engagement with two pinions respectively integral in rotation of two flyweights trains, these two coaxial shafts being coupled to each other by connecting means for ensuring a synchronous transmission of the rotational movement of the one of the two drive shafts, these connecting means further comprising controllable rotational drive means of one of the two drive shafts with respect to the re so as to generate a controllable phase shift between the two drive shafts.
  • this vibrator is characterized in that it further comprises a tubular transmission piece, integral in rotation with the first tubular drive shaft, so that said tubular transmission piece ensures a bypass of the stresses exerted. by the vibrator at the gears thereby relieving the phase shifter.
  • the pressurized fluid inlet circuit can be designed so as to make it possible to control the phase shift and, consequently, the vibratory power transmitted by the vibrator.
  • connection means could in fact comprise a hydraulic rotary actuator, for example of pallet type, or even an electric actuator.
  • the aforesaid first drive shaft may be rotatably mounted in a bearing formed in a first side wall of the vibrator housing; similarly, the aforesaid second drive shaft may be rotatably mounted in a bearing formed in a second side wall of the vibrator housing.
  • the bearing formed in said first side wall of the vibrator housing may comprise a bearing with axial stops disposed between this first wall and a first end of the tubular transmission part carrying the first pinion and in which engages a cylindrical portion extending coaxially the first tubular drive shaft.
  • the bearing formed in said second side wall of the housing may, for its part, comprise a bearing with axial stops disposed between said second wall and the second pinion integral with the second drive shaft and which cleans with the first tubular drive shaft a annular passage in which engages the second end of the tubular transmission part.
  • This arrangement makes it possible to ensure transmission of the forces related to the operation of the vibrator between the two side walls and the tubular transmission piece, thus relieving the phase-shifter.
  • a sliding ring is mounted integral with the tubular transmission piece in the vicinity of the second pinion and disposed in the annular passage, the sliding ring allowing the second pinion to be rotatably mounted around said tubular transmission piece.
  • the vibrator comprises two trains 1, 2 eccentric flyweights rotatably mounted by means of A1, A2, An - A'1, A'2, A'n trees, parallel to a transverse axis X, X ', and whose ends engage in bearings carried by two parallel walls 3, 4, constituting the two lateral sides of a housing 5.
  • M To each of the flyweights M, M 'is associated a pinion P arranged and dimensioned so that the pinions P associated with the same train 1, 2, flyweights M mesh with each other, in successive pairs.
  • flyweights trains M each comprising a pair of flyweight / pinion gear assemblies P represented in solid lines, the assembly partially shown in dashed lines indicating the implementation mode of another pair.
  • the rotational drive of the two flyweights trains is ensured by means of a motorization, comprising, for example, two hydraulic motors H1, H2, mounted on the wall 3 at one end of the housing 5.
  • these two motors H1, H2 drive two respective parallel shafts passing in integral bearings of the walls 3, 4, and which each carry two coaxial pinions respectively P1, P2 - P5, P6.
  • the pinion P1 integral with the motor shaft H1 engages with the pinion P integral with its flyweight M 'to effect the rotational drive of the train 2.
  • the pinion P6 integral with the shaft of the engine H2 meshes with the pinion P integral with its weight M to perform the rotational drive of the train 1.
  • the phase shifter 7 As shown on the figure 3 , the phase shifter 7, according to the invention, consists of a cylindrical structure integral with the walls 3 and 4.
  • the second central drive shaft 6 (drive shaft), of cylindrical shape, delimits with the aforesaid first tubular drive shaft 9, an annular space, closed on one side by a bottom, this second central drive shaft 6 successively comprising a second sealing surface 6E followed by a second threaded portion 6F.
  • first working chamber C1 main working chamber
  • second working chamber C2 secondary working chamber
  • the aforesaid channels Ca1, Ca2 are fed respectively by the connecting tubes Tu1, Tu2, and an adapter 11, integral with the outer surface of the second central drive shaft 6; these two connection tubes Tu1, Tu2, are then associated with a rotary joint 12 for supplying fluid from a fixed hydraulic network, not shown.
  • this piston 10 When the pressurized fluid is injected into the working chamber C1, this piston 10 is subjected to an axial force which tends to move it away from the bottom of the first tubular drive shaft 9 and thus to generate a double relative rotation between the two drive shafts 6 and 9, thanks to the combined action of the helical ramps 9F and 10Fe on the one hand, and helical ramps 6F and 10F on the other hand.
  • the latter are designed to cause a relative double rotation of the drive shafts 6 and 9, to achieve the phasing of the flyweights.
  • the aforesaid pinion P3, integral with the shoulder of the second central drive shaft 6, comprises a bore, which surrounds the cylindrical outer portion of the tubular transmission piece 8; the rotary contact between the bore of the pinion P3 and the cylindrical outer part of the tubular transmission piece 8 is provided by a sliding ring 13, integral with the tubular transmission piece 8.
  • the bearing R2 will be, for example, a ball bearing of large diameter, close to that of the pinion P3, so as to allow the collection of high axial and radial forces related to the operation of the vibrator variable moment, while allowing a reduced axial clearance.
  • the aforesaid pinion P4 is secured to the tubular transmission piece 8 via a key 15.
  • the bearing R1 will for example be a NUP type roller bearing, so as to allow the collection of high radial forces related to the operation of the variable moment vibrator, while allowing reduced axial play.
  • the first tubular drive shaft 9 has a solid cylindrical portion slidably mounted in the aforesaid hollow cylindrical portion of the tubular transmission piece 8 and rotatably secured thereto by a splined coupling. ; this radial coupling allows a certain relative displacement between the first tubular drive shaft 9 and the tubular transmission piece 8, and thus allow a certain axial clearance between the parts facing the first tubular drive shaft 9 with those of the part tubular transmission 8 and the second central drive shaft 6; on the other hand, the aforesaid hollow cylindrical portion of the first tubular drive shaft 9 whose internal bore comprises a first threaded portion 9F followed by a first sealing surface 9E, has an outer diameter smaller than the internal diameter the aforesaid portion being in the form of a cylindrical sleeve of the tubular transmission piece 8; thus, the radial clearance between the first tubular drive shaft 9 and the tubular transmission piece 8 and the axial clearances between the first tubular drive shaft 9 and the tubular transmission part 8 on the
  • tubular drive 9 and the second central drive shaft 6, make it possible to eliminate the transmission of stresses to which the aforementioned pinions P3, P4 are subjected to the piston 10, in the vicinity of the sealing surfaces 6E, 9E, 10Ei, 10Ee and helical ramps 6F, 9F 10F, 10Fe.
  • the structure of the phase shifter according to the invention is optimized in terms of maintenance; indeed, the disassembly of the aforesaid outer flange 14 provides access to the assembly consisting of the aforesaid second central drive shaft 6 and the aforesaid first shaft tubular drive 9, which are associated by the aforesaid piston 10; this assembly, constituting the effectively hydraulic part of the variable moment vibrator phase shifter, can thus be detached from the vibrator without disassembly of the aforementioned pinions P3, P4 and the aforesaid bearings R1, R2.
  • This assembly consisting of the first tubular drive shaft 9, the second central drive shaft 6, and the piston 10, can in turn be easily dismounted so as to allow the control of the sealing surfaces, the helical ramps as well as as seals.
  • first pinion P4 may be rotatably connected to the second central drive shaft 6, and the second pinion P3 may be rotationally integral with the first tubular drive shaft 9.
  • the phase shifter 7 ' according to the invention consists of a cylindrical structure integral with the walls 3 and 4 of the vibrator housing.
  • the second tubular drive shaft 6 '(driving shaft) delimits, with the aforesaid first cylindrical drive shaft 9', an annular space, closed on one side by a bottom, this second tubular drive shaft 6 'comprising a bore having successively a second sealing surface 6'E followed by a second threaded portion 6'F.
  • the space between the aforesaid annular piece 10 'and the bottom of said second tubular drive shaft 6' constitutes a first working chamber C'1 (main working chamber) in which a hydraulic fluid can be admitted thanks to a duct C'a1 made in the second tubular drive shaft 6 '.
  • the space between the aforesaid annular piece 10 'and the aforesaid shoulder of the second tubular drive shaft 6' constitutes a second working chamber C'2 (secondary working chamber) in which a hydraulic fluid can be admitted through a duct C'a2 made in the second tubular drive shaft 6 '.
  • the first cylindrical drive shaft 9 ' has a cylindrical portion slidably mounted in the aforesaid hollow cylindrical portion of the tubular transmission piece 8 and integral in rotation thereof by a keyed coupling or fluted; this radial coupling allows a certain relative displacement between the first cylindrical drive shaft 9 'and the tubular transmission piece 8, and thus allow a certain axial clearance between the parts facing the first cylindrical drive shaft 9' with those of the second tubular drive shaft 6 'and the tubular transmission part 8; on the other hand, the radial clearance between the bore of the tubular transmission piece 8 and the second tubular drive shaft 6 'and the axial clearances between the tubular transmission piece 8 and the second drive shaft 6', allow to eliminate the transmission of the stresses to which the aforementioned pinions P3, P4 are subjected to the piston 10 ', in the vicinity of the sealing surfaces 6'E, 9'E, 10'Ei, 10'Ee and the helical ramps 6' F, 9'F 10'F, 10'Fe.

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  • 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)
  • Transmission Devices (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Hydraulic Motors (AREA)
EP09305650.5A 2008-07-30 2009-07-06 Vibrator mit variablem Drehmoment, der einen Phasenschieber mit verringertem Spiel verwendet Active EP2149403B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0804336A FR2934509B1 (fr) 2008-07-30 2008-07-30 Vibrateur a moment variable utilisant un dephaseur a jeux reduits

Publications (2)

Publication Number Publication Date
EP2149403A1 true EP2149403A1 (de) 2010-02-03
EP2149403B1 EP2149403B1 (de) 2013-08-14

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US (1) US20100024578A1 (de)
EP (1) EP2149403B1 (de)
FR (1) FR2934509B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2896464A1 (de) * 2014-01-21 2015-07-22 ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH Schwingungserreger
CN108580240A (zh) * 2018-03-30 2018-09-28 陕西师范大学 基于耦合振动的二维超声波辐射器

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100242640A1 (en) * 2009-03-24 2010-09-30 Motorola, Inc. Vibrator Assembly having a Cylindrical Unbalanced Counterweight
RU2570585C1 (ru) * 2012-03-15 2015-12-10 Айдин ОЗКАН Безрезонансный вибропогружатель с переменным моментом
EP2789403B1 (de) * 2013-04-10 2015-12-16 ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH Schwingungserreger für Baumaschinen
CN112386439B (zh) * 2020-10-26 2022-09-23 武义盘顺智能科技有限公司 一种律动机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0524056A1 (de) * 1991-07-15 1993-01-20 Procedes Techniques De Construction Schwingungserreger mit einstellbarer Unwucht, insbesondere zum Eintreiben von Gegenständen in den Boden
FR2772805A1 (fr) * 1997-12-24 1999-06-25 Procedes Tech Const Dispositif pour la commande asservie de l'amplitude des vibrations d'un vibrateur a moment variable
EP1460178A2 (de) * 2003-03-21 2004-09-22 Metso Dynapac AB Justiereinrichtung zum Regeln der Exzentrizität einer Exzenterwelle in einer Walze
DE202007003532U1 (de) * 2007-03-07 2007-07-05 Abi Gmbh Schwingungserreger

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1008635C2 (nl) * 1998-03-19 1999-09-21 Ice B V Trilinrichting en werkwijze voor het trillend aandrijven van een voorwerp.
US20020104393A1 (en) * 2001-02-07 2002-08-08 Van Es J. R. Variable moment vibrator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0524056A1 (de) * 1991-07-15 1993-01-20 Procedes Techniques De Construction Schwingungserreger mit einstellbarer Unwucht, insbesondere zum Eintreiben von Gegenständen in den Boden
FR2772805A1 (fr) * 1997-12-24 1999-06-25 Procedes Tech Const Dispositif pour la commande asservie de l'amplitude des vibrations d'un vibrateur a moment variable
EP1460178A2 (de) * 2003-03-21 2004-09-22 Metso Dynapac AB Justiereinrichtung zum Regeln der Exzentrizität einer Exzenterwelle in einer Walze
DE202007003532U1 (de) * 2007-03-07 2007-07-05 Abi Gmbh Schwingungserreger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2896464A1 (de) * 2014-01-21 2015-07-22 ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH Schwingungserreger
CN108580240A (zh) * 2018-03-30 2018-09-28 陕西师范大学 基于耦合振动的二维超声波辐射器
CN108580240B (zh) * 2018-03-30 2020-10-16 陕西师范大学 基于耦合振动的二维超声波辐射器

Also Published As

Publication number Publication date
US20100024578A1 (en) 2010-02-04
EP2149403B1 (de) 2013-08-14
FR2934509B1 (fr) 2010-09-10
FR2934509A1 (fr) 2010-02-05

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