EP3325181B1 - Dispositif vibrateur - Google Patents

Dispositif vibrateur Download PDF

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Publication number
EP3325181B1
EP3325181B1 EP15898841.0A EP15898841A EP3325181B1 EP 3325181 B1 EP3325181 B1 EP 3325181B1 EP 15898841 A EP15898841 A EP 15898841A EP 3325181 B1 EP3325181 B1 EP 3325181B1
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EP
European Patent Office
Prior art keywords
masses
shaft
vibrator device
eccentric
rotating motor
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.)
Active
Application number
EP15898841.0A
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German (de)
English (en)
Other versions
EP3325181A1 (fr
EP3325181A4 (fr
Inventor
Pentti KUIVAMÄKI
Mikko Lindeman
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.)
MOVAX Oy
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MOVAX Oy
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Publication of EP3325181A1 publication Critical patent/EP3325181A1/fr
Publication of EP3325181A4 publication Critical patent/EP3325181A4/fr
Application granted granted Critical
Publication of EP3325181B1 publication Critical patent/EP3325181B1/fr
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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

Definitions

  • the invention relates to a vibrator device for producing impacts or vibration with adjustable intensity, the vibrator device comprising at least two rotatable eccentric masses whereby each mass is placed to rotate on its own shaft, and the rotation of said shafts is arranged to take place by at least one rotating motor, and that between said eccentric masses there is provided a mechanism conveying rotational force between said masses and including a shaft conveying rotational force, as well as a wheel, such as a gear, rotating in cooperation with both said masses and provided with a centre opening.
  • a vibrator device which comprises four shafts provided with eccentric masses, each shaft having its own rotating motor.
  • the shafts and the masses on them are synchronised to rotate at the same speed and to maintain the same rotational phase by means of a flexible force-conveying belt passing through gears supported by the shafts.
  • the mutual phase angle of the shafts located one under the other and their masses is adjusted by shifting the position of the sheave guiding the running of the belt that conveys rotational force.
  • eccentric masses located one under the other or in the same group may be made to rotate in the desired mutual phase angle. So, in a four-shaft vibrator device, the rotation of the upper and lower shaft of both sides of the vibrator device is adjusted.
  • a drawback with the publication US 5,458,204 is that in a vibrator device having four or more shafts, the shafts or shaft groups on both sides must be made to rotate mutually at the same phase as a group as a mirror image of each other.
  • each shaft is rotated by its own hydraulic motor, only the shafts joined by the same flexible element rotate mutually at the desired speed at the desired phases.
  • the adjustment of the rotation of the motors becomes difficult.
  • the force-conveying belt should not act as the conveyor of the actual rotational force from one shaft to another.
  • vibration adjustment devices are known from publications US2002/01 04393 and JPH05237459 .
  • the mutual phase angle of two shafts is changed by means of a screw thread formed at an end of a shaft, by axially moving the shaft in an opening formed in the hub of one shaft, which has a mating thread for the aforementioned screw thread.
  • the drawback with these is that the hydraulic fluid that makes the shaft move must be fed to a rotating structure, and the shaft further requires support in the axial direction.
  • the patent publication US 5,177,386 describes a vibration generator with a phase adjustment shaft and a double acting cylinder as driving means for moving the phase adjustment shaft in the axial direction.
  • the present invention provides a vibrator device as defined in independent claim 1, by means of which the problems referred to in the above may be avoided.
  • An advantage of the invention is that the masses m1, m2 moved to different positions with respect to one another by means of a phase shift move to their positions reliably and also reliably stay there.
  • the transfer of rotational force in the structure has very small clearances, resulting in that the vibration caused by the eccentric masses will not be multiplied to the structures to stress them.
  • the rotation of eccentric masses moved to the desired phase difference with respect to other masses also takes place, in accordance with the invention, as a group by means of a gear transmission, whereby these eccentric masses mutually stay reliably in synchronization at all the values of the phase difference.
  • a further advantage of the invention is that the mechanism establishing the desired phase difference may, if need be, transfer rotational force from one eccentric mass to another, whereby the number of rotating motors may be reduced.
  • Figures 1 and 2 show the mechanism fixed to a casing 9 of the vibrator device and installed in the direction of impact, changing the mutual phase shift of the eccentric masses m1, m2 and even transferring rotational force, if need be, comprising conical secondary gears 8 from which the rotational force is conveyed to the eccentric masses m1, m2 (not shown).
  • the primary gears are interconnected by means of a shaft 1 led through a conical part 6, the shaft showing the ends provided with threaded ends 2, only.
  • the eccentric masses m 1, m2 are coupled to parts 12.
  • the shaft 1 transfers rotational movement between the primary gears and specifically maintains the phase difference set between said primary gears, the phase difference also having an effect between the eccentric masses m1, m2 because they are connected by a shaft to the corresponding primary gears.
  • the gear 10 supplies the rotational force for a lubricating pump.
  • FIGs 3 and 4 show in greater detail the mechanism implementing phase shift, which primarily shifts the phase between the wheels 3 located at different ends of the shaft 1 and acting as the primary gears.
  • the primary gears are fixed to bushings 4, the inner opening of which is threaded, and the ends of the shaft 1 have a matching mating threading for this.
  • the shaft 1 transmitting rotational force may be moved in its direction so that the right-handed and left-handed threaded parts 2 establish the required maximum phase difference of 180° between the primary gears as the shaft 1 is moving to the extent of its play.
  • This phase difference for the masses m1 in relation to masses m2 is formed through the movement of the shaft 1 and angle gears ( Figure 5 - 7 ).
  • the shaft 1 is moved by means of a hydraulic cylinder consisting of a stationary non-rotating cylinder part 6 and a piston 5 moving therein.
  • the piston 5 is not connected to the shaft 1, but to a separate inner cylinder part 7 which moves with the shaft 1 .
  • the shaft 1 is fit with bearings to rotate inside the cylinder part 7, with the cylinder part 7 moving the shaft 1 in the axial direction.
  • the piston 5 does not rotate within the cylinder 6.
  • the power unit M as in Figure 6 , used in the vibrator device is connected to the shaft of the eccentric mass m1 to rotate said mass m1 directly.
  • Figures 5 and 6 show diagrammatically a mechanism creating a phase difference, arranged in a four-mass vibrator device and placed in connection with a vibration casing 9, as well as the eccentric masses m1, m2 included in the device.
  • the mutual phase differences between the masses m1 and m2 are adjusted to the value 180°, whereby the eccentric forces of the masses m1, m2 of both of the adjacent pairs are cancelled in the direction of the arrow.
  • the rotating directions of all the masses m1, m2 are additionally so chosen that the forces caused by eccentricity are cancelled in the lateral direction, too.
  • rotating the vibrator device takes place with two hydraulic motors M that are placed on the shafts of the eccentric masses m1, m2 on the left.
  • the rotational force is transmitted from the shafts on the left through gearing 13 to the shafts on the right.
  • the mechanism creating phase shift described in Figures 1 - 4 is placed between the masses m1, m2 on the right, in the direction of impact.
  • Rotating a four-mass vibrator device may take place by means of four rotating motors, each or which rotates the shaft of its own mass.
  • the number of rotating motors may be reduced when the shaft that is rotated with the rotating motor also rotates an adjacent shaft by a chain or gear transmission. Furthermore, the number of rotating motors is also reduced by the option that the mechanism creating phase difference transmits rotational force to one or more shafts of an eccentric mass as well.
  • phase difference there are two mechanisms establishing phase difference, that is, installed between both mass pairs m1, m2 in the direction of impact.
  • power transmission provided with an angle gear is described. In an example not forming part of the invention, other ways of power transmission may be used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Claims (5)

  1. Dispositif de vibreur pour produire des impacts ou des vibrations d'intensité réglable, le dispositif de vibreur comprenant au moins deux masses excentriques rotatives (m1, m2) moyennant quoi chaque masse est placée pour tourner sur son propre arbre, et la rotation desdits arbres est agencée de façon à se produire par au moins un moteur rotatif (M), dans lequel entre lesdites masses excentriques (m1, m2) est prévu un mécanisme transmettant la force de rotation entre lesdites masses et comprenant un arbre d'interconnexion (1) transmettant la force de rotation, ainsi que des roues (3) tournant en coopération avec lesdites deux masses et pourvues d'une ouverture centrale, caractérisé en ce que lesdites roues (3) sont interconnectées par ledit arbre d'interconnexion (1) dont les deux extrémités contiennent un filetage d'accouplement (2) s'adaptant à un filetage de vis agencé dans l'ouverture centrale sur lesdites deux roues ; une unité de puissance est configurée pour déplacer l'arbre d'interconnexion (1) dans la direction axiale pour régler la rotation mutuelle des masses (m1, m2), et un piston (5) mobile à l'intérieur d'un cylindre hydraulique (6) est agencé sur une pièce cylindrique (7) agencée autour de l'arbre d'interconnexion (1), dans lequel des pignons de renvoi sont fixés aux arbres des masses excentriques (m1, m2) de sorte que les roues (3) faisant office de pignons primaires tournent sur la même ligne axiale de rotation et l'arbre d'interconnexion (1) est équipé d'un palier de manière à tourner à l'intérieur de la pièce cylindrique non tournante (7) placée autour de celui-ci.
  2. Dispositif de vibreur tel que revendiqué dans la revendication 1, caractérisé en ce qu'un mouvement de rotation est directement transmis du moteur rotatif (M) à au moins un arbre comprenant une masse excentrique.
  3. Dispositif de vibreur tel que revendiqué dans la revendication 1, caractérisé en ce que le cylindre hydraulique (6) est fixé de façon inamovible au dispositif de vibreur.
  4. Dispositif de vibreur tel que revendiqué dans la revendication 1, caractérisé en ce qu'au moins un moteur rotatif (M) comprend un premier moteur rotatif (M) et un deuxième moteur rotatif (M), dans lequel le premier moteur rotatif est configuré pour faire tourner une première masse des masses excentriques (m1), et le deuxième moteur rotatif est configuré pour faire tourner une deuxième masse des masses excentriques (m2).
  5. Dispositif de vibreur tel que revendiqué dans la revendication 1, caractérisé en ce que les arbres rotatifs d'au moins un groupe de masses excentriques, soit le groupe constitué des masses (m1) soit des masses (m2), sont interconnectés au moyen d'une transmission par pignon (13) ou d'une transmission par chaîne.
EP15898841.0A 2015-07-17 2015-07-17 Dispositif vibrateur Active EP3325181B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI2015/000032 WO2017013303A1 (fr) 2015-07-17 2015-07-17 Dispositif de vibreur

Publications (3)

Publication Number Publication Date
EP3325181A1 EP3325181A1 (fr) 2018-05-30
EP3325181A4 EP3325181A4 (fr) 2019-03-06
EP3325181B1 true EP3325181B1 (fr) 2023-08-09

Family

ID=57833842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15898841.0A Active EP3325181B1 (fr) 2015-07-17 2015-07-17 Dispositif vibrateur

Country Status (3)

Country Link
EP (1) EP3325181B1 (fr)
PL (1) PL3325181T3 (fr)
WO (1) WO2017013303A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11555528B2 (en) 2017-04-04 2023-01-17 Moog Inc. Variable rotary mass vibration suppression system
WO2019005249A1 (fr) 2017-06-27 2019-01-03 Moog Inc. Système de suppression de vibrations de masse pendulaire rotative variable
CN111406019A (zh) 2017-06-27 2020-07-10 莫戈公司 可变旋转径向支撑式质量块振动抑制系统

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB429881A (en) * 1933-11-13 1935-06-07 Walther Voith Improvements in or relating to shaking means for wire cloths of fourdrinier paper-making machines and the like
SE434550B (sv) * 1983-01-26 1984-07-30 Dynapac Maskin Ab Anordning for lagring av stora exenterkrafter
DE3418268A1 (de) * 1984-05-17 1985-11-21 Benno 5205 St Augustin Kaltenegger Vibrationsvorrichtung, insbesondere fuer bodenverdichtungsgeraete
DE3634093A1 (de) * 1986-10-07 1988-04-14 Mozdzanowski Joachim Schwingungserreger insbesondere fuer ruettelplatten
JPH0783862B2 (ja) * 1990-02-02 1995-09-13 株式会社東洋機械製作所 振動発生機用振動力可変装置
US5177386A (en) * 1990-08-30 1993-01-05 Kencho Kobe Co., Ltd. Vibration generator adjustable during operation
JP2865934B2 (ja) 1992-02-28 1999-03-08 株式会社建調神戸 振動発生装置
DE9312846U1 (de) 1993-08-27 1993-10-28 Tünkers Maschinenbau GmbH, 40880 Ratingen Vibrationsbär zum Rammen und/oder Ziehen von Rammgütern
SE514877E5 (sv) * 1998-07-13 2011-06-14 Rune Sturesson Roterbar excenteranordning avpassad för steglös omställning av vibrationsamplituden
US20020104393A1 (en) 2001-02-07 2002-08-08 Van Es J. R. Variable moment vibrator
SE525020C2 (sv) * 2003-03-21 2004-11-09 Metso Dynapac Ab Ställdon för reglering av en vältvals excenteraxels excentermoment
FR2882120B1 (fr) * 2005-02-17 2010-07-30 Eurocopter France Dispositif antivibratoire a masselottes rotatives a train epicycloidal
EP2834422B1 (fr) * 2012-03-15 2022-05-25 Ozkan, Aydin Vibrofonceur

Also Published As

Publication number Publication date
EP3325181A1 (fr) 2018-05-30
WO2017013303A1 (fr) 2017-01-26
EP3325181A4 (fr) 2019-03-06
PL3325181T3 (pl) 2024-02-05

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