WO2017013303A1 - Dispositif de vibreur - Google Patents

Dispositif de vibreur Download PDF

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Publication number
WO2017013303A1
WO2017013303A1 PCT/FI2015/000032 FI2015000032W WO2017013303A1 WO 2017013303 A1 WO2017013303 A1 WO 2017013303A1 FI 2015000032 W FI2015000032 W FI 2015000032W WO 2017013303 A1 WO2017013303 A1 WO 2017013303A1
Authority
WO
WIPO (PCT)
Prior art keywords
masses
shaft
vibrator device
eccentric
rotating
Prior art date
Application number
PCT/FI2015/000032
Other languages
English (en)
Inventor
Pentti KUIVAMÄKI
Mikko Lindeman
Original Assignee
Movax Oy
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 Movax Oy filed Critical Movax Oy
Priority to PCT/FI2015/000032 priority Critical patent/WO2017013303A1/fr
Priority to EP15898841.0A priority patent/EP3325181B1/fr
Priority to PL15898841.0T priority patent/PL3325181T3/pl
Publication of WO2017013303A1 publication Critical patent/WO2017013303A1/fr

Links

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 US2002/0104393 and JPH05237459.
  • the invention is characterised in that said wheels 3 are interconnected by such a shaft whose both ends contain a mating thread fitting the screw thread formed in the centre opening on both of said wheels, and to adjust the mutual rotation of the masses the interconnecting shaft may be moved in the axial direction by a power unit.
  • An advantage of the invention is that the masses ml , 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.
  • Figure 1 shows the mechanism intended for rotating two eccentric masses located one after the other in the direction of impact of the vibrator device, by means of which a phase shift is created between said masses.
  • Figure 2 shows a side view of the mechanism of Figure 1 .
  • Figure 3 is a section view of the mechanism of Figure 2 along the line A - A.
  • Figure 4 is a section view of the mechanism of Figure 2 along the line B - B.
  • Figure 5 is a schematic representation of a four-mass vibrator device adjusted to 0 power.
  • Figure 6 shows the vibrator device of Figure 5 after the masses have rotated by 180 ° .
  • Figure 7 shows the vibrator device of Figures 5 and 6 with the phase shifts set on the maximum impact.
  • 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 ml , 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 ml , 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 ml , 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 ml , 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 ml 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 power unit M as in Figure 6, used in the vibrator device is connected to the shaft of the eccentric mass ml to rotate said mass ml 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 ml , m2 included in the device.
  • the mutual phase differences between the masses ml and m2 are adjusted to the value 180°, whereby the eccentric forces of the masses ml , m2 of both of the adjacent pairs are cancelled in the direction of the arrow.
  • the rotating directions of all the masses ml , 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 ml , 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 ml , m2 on the right, in the direction of impact.
  • the eccentric masses ml have been rotated by 180° by means of the cylinder 6 and the movement of the shaft 1 so that, in both directions of the arrow, the forces resulting from the eccentricity of the masses ml and m2 affect in the same direction. In this case, too, the lateral forces are still cancelled.
  • the vibrator device strikes at the maximum power both upward and downward.
  • partial striking power may also be used when the phase difference between the masses ml , m2 is changed as desired between 0 and 180° by moving the shaft 1 .
  • 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 ml , m2 in the direction of impact.
  • power transmission provided with an angle gear is described.
  • the invention is not restricted to solutions with angle gears, but other ways of power transmission are also included.

Landscapes

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

Abstract

L'invention concerne un dispositif de vibreur pour produire des impacts ou des vibrations d'intensité réglable, lequel dispositif de vibreur comprend au moins deux masses excentrées rotatives (ml, m2), ce par quoi chaque masse est disposée de façon à tourner sur son propre axe, et la rotation desdits arbres est conçue de façon à se produire par au moins un moteur rotatif (M), et, entre lesdites masses excentrées (ml, m2), se trouve un mécanisme acheminant une force de rotation entre lesdites masses et comprenant un arbre (1) acheminant une force de rotation, ainsi qu'une roue (3), telle qu'un engrenage, tournant en coopération avec lesdites deux masses et comportant un orifice central. Lesdites roues (3) sont interconnectées par ledit arbre (1), dont les deux extrémités contiennent un filetage d'accouplement (2) s'adaptant au filetage de vis disposé dans l'ouverture centrale desdites deux roues, et pour ajuster la rotation mutuelle des masses (ml, m2), l'arbre d'interconnexion (1) pouvant être déplacé dans la direction axiale par une unité de puissance.
PCT/FI2015/000032 2015-07-17 2015-07-17 Dispositif de vibreur WO2017013303A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/FI2015/000032 WO2017013303A1 (fr) 2015-07-17 2015-07-17 Dispositif de vibreur
EP15898841.0A EP3325181B1 (fr) 2015-07-17 2015-07-17 Dispositif vibrateur
PL15898841.0T PL3325181T3 (pl) 2015-07-17 2015-07-17 Urządzenie generatora drgań

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 (1)

Publication Number Publication Date
WO2017013303A1 true WO2017013303A1 (fr) 2017-01-26

Family

ID=57833842

Family Applications (1)

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

Country Status (3)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018187178A1 (fr) * 2017-04-04 2018-10-11 Moog Inc. Système de suppression de vibrations de masse rotative variable
US11396369B2 (en) 2017-06-27 2022-07-26 Moog Inc. Variable rotary radially supported mass vibration suppression system
US11472540B2 (en) 2017-06-27 2022-10-18 Moog Inc. Variable rotary pendulous mass vibration suppression system

Citations (12)

* 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
GB2159236A (en) * 1984-05-17 1985-11-27 Benno Kaltenegger A vibration device, especially for a smooth roller apparatus
US4561319A (en) * 1983-01-26 1985-12-31 Dynapac Ab Arrangement for journalling large eccentric forces
US5177386A (en) 1990-08-30 1993-01-05 Kencho Kobe Co., Ltd. Vibration generator adjustable during operation
JPH05237459A (ja) 1992-02-28 1993-09-17 Kenchiyoo:Kk 振動発生装置
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
US5458204A (en) 1993-08-27 1995-10-17 Tunkers Maschinenbau Gmbh Vibration pile driver for ramming and/or pulling of ram material
WO2000005455A1 (fr) * 1998-07-13 2000-02-03 Rune Sturesson Dispositif excentrique rotatif
US20020104393A1 (en) 2001-02-07 2002-08-08 Van Es J. R. Variable moment vibrator
US20040182185A1 (en) * 2003-03-21 2004-09-23 Nils-Goran Niglov Adjusting device for regulating the eccentric moment of a roller drum eccentric shaft
US7347799B2 (en) * 2005-02-17 2008-03-25 Eurocopter Antivibration device having rotary flyweights and an epicyclic geartrain
WO2013136138A1 (fr) * 2012-03-15 2013-09-19 Ozkan Aydin Marteau vibrant sans resonance à couple variable

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3634093A1 (de) * 1986-10-07 1988-04-14 Mozdzanowski Joachim Schwingungserreger insbesondere fuer ruettelplatten

Patent Citations (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
US4561319A (en) * 1983-01-26 1985-12-31 Dynapac Ab Arrangement for journalling large eccentric forces
GB2159236A (en) * 1984-05-17 1985-11-27 Benno Kaltenegger A vibration device, especially for a smooth roller apparatus
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
JPH05237459A (ja) 1992-02-28 1993-09-17 Kenchiyoo:Kk 振動発生装置
US5458204A (en) 1993-08-27 1995-10-17 Tunkers Maschinenbau Gmbh Vibration pile driver for ramming and/or pulling of ram material
WO2000005455A1 (fr) * 1998-07-13 2000-02-03 Rune Sturesson Dispositif excentrique rotatif
US20020104393A1 (en) 2001-02-07 2002-08-08 Van Es J. R. Variable moment vibrator
US20040182185A1 (en) * 2003-03-21 2004-09-23 Nils-Goran Niglov Adjusting device for regulating the eccentric moment of a roller drum eccentric shaft
US7347799B2 (en) * 2005-02-17 2008-03-25 Eurocopter Antivibration device having rotary flyweights and an epicyclic geartrain
WO2013136138A1 (fr) * 2012-03-15 2013-09-19 Ozkan Aydin Marteau vibrant sans resonance à couple variable

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3325181A4

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018187178A1 (fr) * 2017-04-04 2018-10-11 Moog Inc. Système de suppression de vibrations de masse rotative variable
US11555528B2 (en) 2017-04-04 2023-01-17 Moog Inc. Variable rotary mass vibration suppression system
US11396369B2 (en) 2017-06-27 2022-07-26 Moog Inc. Variable rotary radially supported mass vibration suppression system
US11472540B2 (en) 2017-06-27 2022-10-18 Moog Inc. Variable rotary pendulous mass vibration suppression system

Also Published As

Publication number Publication date
PL3325181T3 (pl) 2024-02-05
EP3325181A1 (fr) 2018-05-30
EP3325181A4 (fr) 2019-03-06
EP3325181B1 (fr) 2023-08-09

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