EP1481739B1 - Un vibrateur avec deux paires de deux poids excentrés - Google Patents

Un vibrateur avec deux paires de deux poids excentrés Download PDF

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Publication number
EP1481739B1
EP1481739B1 EP04076398A EP04076398A EP1481739B1 EP 1481739 B1 EP1481739 B1 EP 1481739B1 EP 04076398 A EP04076398 A EP 04076398A EP 04076398 A EP04076398 A EP 04076398A EP 1481739 B1 EP1481739 B1 EP 1481739B1
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EP
European Patent Office
Prior art keywords
eccentric weights
pair
weights
housing
vibrating device
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.)
Revoked
Application number
EP04076398A
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German (de)
English (en)
Other versions
EP1481739A1 (fr
Inventor
Arie Heinz Horst Kandt
Ferdinand Piccinini
Lorenzo Alberti
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.)
Kandt Special Crane Equipment BV
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Kandt Special Crane Equipment BV
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Publication date
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Application filed by Kandt Special Crane Equipment BV filed Critical Kandt Special Crane Equipment BV
Publication of EP1481739A1 publication Critical patent/EP1481739A1/fr
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    • 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 vibrating device comprising a housing in which two pairs of two eccentric weights arranged beside each other are accommodated for rotation about axes of rotation, each pair of eccentric weights having its own driving unit for rotating the eccentric weights in such a manner that the two eccentric weights of each pair rotate in opposite directions during operation, the device being constructed so that the rotational position of one pair of weights is adjustable relative to the rotational position of the other pair of weights.
  • each pair of eccentric plates is driven via a gear mounted on an outgoing shaft of a driving unit, which gear meshes with a gear connected to one of the eccentric weights.
  • Said gear connected to an eccentric weight meshes with a further gear mounted to the other eccentric weight of the pair.
  • the gears of the two pairs of eccentric weights, which do not mesh with the gears mounted on the outgoing shafts of the driving units, are interconnected via a complicated, heavy gear mechanism which takes up a great deal of space in the housing, by means of which gear mechanism the rotational position of one pair of weights relative to the rotational position of the other pair of weights can be adjusted.
  • Another drawback of said known device is the fact that the great amount of space taken up by the driving units and the gear mechanism disposed on either side of the two pairs of counterweights makes it necessary, in order to keep the dimensions of the housing within acceptable bounds, to mount the counterweights in such a manner that the axes of rotation of the counterweights extend perpendicularly to the long sides of the housing. Accordingly, the counterweights may only have a short length, considering the admissible dimensions of the housing, which imposes limitations as regards the weight of said counterweights.
  • the device comprises an electric/electronic control unit for controlling the two driving units of the two pairs of eccentric weights in such a manner that it is possible to effect synchronous rotation of the two driving units by means of the control unit on the one hand and to adjust the rotational position of one pair of weights relative to the rotational position of the other pair of weights by influencing at least one driving unit on the other hand.
  • hydraulic motors are used as the driving units, and the supply of fluid to the hydraulic motors is controlled by means of the control unit.
  • a compact arrangement of gears used for driving a pair of eccentric weights and the driving unit used for driving the gears in question can be obtained if the driving unit associated with a pair of eccentric weights is disposed between the axes of rotation of said pair of eccentric weights, seen in a direction perpendicular to a plane through said axes of rotation.
  • the axes of rotation of two driving units disposed one above another in the housing lie closer together than the two planes extending through respective axes of rotation of a pair of eccentric weights, as a result of which a very compact construction of the vibrating device can be obtained.
  • the gears used for driving the eccentric weights are all disposed near one end of the housing, the gears can be accommodated in a housing part that is separated from the housing part in which the eccentric weights are accommodated, so that any damage to the gears will not lead to damage being caused to the counterweights and the bearings supporting said counterweights.
  • said housing part comprises two parts separated from each other, one part accommodating the gears associated with a first pair of eccentric weights and the other part accommodating the gears associated with the other pair of eccentric weights.
  • the eccentric weights furthermore extend in the longitudinal direction of the housing, making it possible to use weights of comparatively great length, so that either heavier weights than is possible with the known device or counterweights having a smaller external radius may be used.
  • Fig. 1 is a schematic perspective view of a vibrating device according to the invention, certain parts of which have been left out so as to show parts disposed therebehind.
  • Fig. 2 is a side elevation of the device that is shown in Fig. 1 , a wall of the housing of which has been left out.
  • Fig. 3 shows a diagram for controlling the driving units.
  • Figs. 4 and 5 show two different relative positions that the eccentric weights may take up with respect to each other.
  • Fig. 6 is a sectional view of a second embodiment of a vibrating device according to the invention.
  • the weights 2, 3, 4, 5 are mounted on shafts 6, 7, 8 and 9, respectively, which extend parallel to each other and which are mounted in bearings (not shown) in such a manner that the shafts 6-9 are rotatable about their central axes, which form axes of rotation for the eccentric weights.
  • the two eccentric weights 2 and 3 form a first pair of cooperating eccentric weights, which weights 2 and 3 are coupled by means of meshing gears 10 and 11 mounted on the shafts 6, 7.
  • the eccentric weights 4 and 5 are coupled in a similar manner by means of meshing gears 12 and 13 mounted on the shafts 8 and 9.
  • a further gear 14 mounted on the shaft 7 of the eccentric weight 3 meshes with a gear 17 mounted on the outgoing shaft 15 of a hydraulic motor 16.
  • a gear 18 is mounted on the shaft 9 of the eccentric weight 5, which gear meshes with a gear 19 mounted on the outgoing shaft 20 of a hydraulic motor 21.
  • the eccentric weights 2 and 3 will be driven by means of the hydraulic motor 16, in such a manner that they will rotate in the direction indicated by the arrows A and B. Furthermore, the eccentric weights 4 and 5 will be driven by means of the hydraulic motor 21 during operation, in such a manner that they will rotate in the direction indicated by the arrows C and D.
  • the space in which the gears are accommodated may be separated from the remaining part of the housing 1 by means of a partition 22 (schematically indicated). Said space may furthermore be divided into two parts by a further partition 23, so that the gears used for driving one pair of eccentric weights 2 and 3 are disposed in a space or housing part that is separated from the space or the housing part in which the gears for driving the other are disposed. This achieves that any damage to gears driving a pair of eccentric weights 2, 3 or 4, 5 will not affect the gears driving the other pair of eccentric weights.
  • the hydraulic motor 16 that drives the pair of eccentric weights 2 and 3 is positioned between the axes of rotation of the eccentric weights 2 and 3, seen in a direction perpendicular to the plane through the axes of rotation of said eccentric weights 2 and 3.
  • the central axes or axes of rotation of the two hydraulic motors 16 and 21 are furthermore spaced apart by a distance smaller than the distance between the plane through the axes of rotation of the pair of eccentric weights 2, 3 and the plane through the axes of rotation of the pair of eccentric weights 4 and 5.
  • This arrangement enables a compact construction of the vibrating device, whilst said arrangement furthermore makes it possible to have the eccentric weights extend in the longitudinal direction of the housing 1 without this leading to undesirable dimensions of the housing. It is possible, therefore, to use eccentric weights of comparatively great length, which enables the use of heavy counterweights without the outer circumference of the path described by the counterweights during operation becoming too large.
  • fluid will be supplied to the two hydraulic motors 16 and 21 by means of a pump 24 via a valve mechanism 25.
  • the hydraulic motors 16 and 21 and the valve block 25 are connected to a control unit 27, which measures the rotational speed of the two motors 16 and 21 during operation and which is capable of influencing said rotational speed of the two motors 16 and 21 by controlling the supply of fluid to the motors 16 and 21 via the valve mechanism.
  • the control unit 27 may comprise a computer, which receives signals from the motors by electric/electronic means and which controls valves by electric/electronic means for the purpose of regulating the fluid flow to the motors.
  • the eccentric weights 2 and 3 of one pair and the eccentric weights 4 and 5 of the other pair will take up the relative position that is indicated in Fig. 1 with respect to each other so as to effect a vibrating force in the direction indicated by the arrow E.
  • the control unit 27 will effect a supply of fluid to the hydraulic motors 16 and 21 such that the eccentric weights will all rotate at the same rotational speed.
  • the eccentric weights are preferably moved to the relative position that is shown in Fig. 4 with respect to each other, so as to eliminate the vibrating force, before the vibrating device is turned off.
  • the valve mechanism 25 is influenced by means of the control unit 27 in such a manner that one hydraulic motor is briefly supplied with more fluid or less fluid than the other hydraulic motor, so that the eccentric weights of one pair will briefly rotate slightly more quickly or more slowly than the eccentric weights of the other pair for the purpose of changing the relative position of the eccentric weights of the two groups with respect to each other. Subsequently, the rotational speed of the two pairs of eccentric weights can be simultaneously reduced to zero and the vibrating machine can be stopped.
  • the eccentric weights of the two pairs will generally return to the relative position that is shown in Fig. 5 with respect to each other under the influence of the force of gravity and leakage of oil from the hydraulic motors 16 and 21.
  • the control unit 27 it is therefore arranged by means of the control unit 27 that one hydraulic motor is briefly supplied with more fluid or less fluid than the other hydraulic motor so as to achieve the relative position of the eccentric weights that is shown in Fig. 4 with respect to each other, so that no vibrating force will be exerted while the rotational speed of the eccentric weights is being increased to the operating speed.
  • control unit 27 which monitors and controls the rotational speeds of the hydraulic motors and the supply of fluid to the hydraulic motors, makes it possible to adjust the relative position of the two pairs of eccentric weights with respect to each other in a simple manner without using complicated mechanical means, which makes the construction of the vibrating device simpler and less vulnerable than that of the known devices.
  • the direction in which the vibrating force acts can be changed by reversing the direction of rotation of the eccentric weights.
  • Fig. 6 shows a second embodiment of the vibrating device according to the invention.
  • those parts that correspond to parts shown in the preceding figures and described above are indicated by the same numerals as used in Figs. 1-5 .
  • the gears connected to the eccentric weights 2 and 3 and the motor 16 that drives said eccentric weights are disposed near one end of the housing 1 in this embodiment, whilst the gears connected to the eccentric weights 4 and 5 and the motor 21 that drives said eccentric weights are disposed near the other end of the housing 1.
  • the gear 17 that is mounted on the outgoing shaft of the motor 16 directly meshes with one of the gears connected to the eccentric weights 2 and 3, whilst the gear 19 mounted on the outgoing shaft of the motor 21 directly meshes with one of the gears connected to the eccentric weights 4 and 5.
  • the ends of the shafts supporting the eccentric weights are mounted in bearings 28, which are disposed in covers 29 that close the housing 1 at the end thereof.
  • Two partitions 30 extending parallel to the covers are disposed in the housing at some distance from the two covers 29, in such a manner that the gears are disposed in a space separated from the space that accommodates the eccentric weights at the two ends of the housing 1.
  • Division plates 31 are furthermore provided between the covers 29 and the partitions 30 halfway the height of the space, so that the space accommodating the gears associated with one pair of eccentric weights is separated from the ends of the shafts of the other pair of eccentric weights present at the corresponding end of the housing 1.
  • Fig. 6 furthermore shows a clamping device 32, by means of which the vibrating device can be clamped down to a sheet pile or the like, for example.
  • the vibrating device is in particular intended for being used for driving piles or the like into the ground or removing piles and the like from the ground, but it will be apparent that the vibrating device may also be used for other purposes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Claims (9)

  1. Dispositif vibrant comprenant un boîtier (1) dans lequel deux paires de deux poids excentriques (2-5) agencées l'une à côté de l'autre, sont logées pour la rotation autour d'axes de rotation, chaque paire de poids excentriques ayant sa propre unité d'entraînement (16, 21) pour faire tourner les poids excentriques de sorte que les deux poids excentriques de chaque paire tournent dans des directions opposées pendant le fonctionnement, le dispositif étant construit de sorte que la position de rotation d'une paire de poids est ajustable par rapport à la position de rotation de l'autre paire de poids, caractérisé en ce que le dispositif comprend une unité de commande électrique/électronique (27) adaptée pour surveiller et contrôler la vitesse de rotation des deux unités d'entraînement des deux paires de poids excentriques de sorte qu'il est possible d'effectuer la rotation synchrone des deux unités d'entraînement au moyen de l'unité de commande d'une part et d'ajuster la position de rotation de la première paire de poids par rapport à la position de rotation de l'autre paire de poids en influençant au moins une unité d'entraînement d'autre part.
  2. Dispositif vibrant selon la revendication 1, caractérisé en ce que l'on utilise des moteurs hydrauliques (16, 21) en tant qu'unités d'entraînement, et en ce que l'alimentation de fluide aux moteurs hydrauliques est commandée au moyen de l'unité de commande (27).
  3. Dispositif vibrant selon la revendication 1 ou 2, caractérisé en ce que l'unité d'entraînement (16, 21) associée à une paire de poids excentriques est disposée entre les axes de rotation de ladite paire de poids excentriques, observée dans une direction perpendiculaire à un plan à travers lesdits axes de rotation.
  4. Dispositif vibrant selon l'une quelconque des revendications précédentes, caractérisé en ce que les axes de rotation des deux unités d'entraînement disposées l'une au-dessus de l'autre dans le boîtier, sont plus rapprochés que les deux plans s'étendant à travers les axes de rotation respectifs d'une paire de poids excentriques.
  5. Dispositif vibrant selon l'une quelconque des revendications précédentes, caractérisé en ce que des engrenages associés à une paire de poids excentriques sont disposés à proximité d'une extrémité du boîtier et les engrenages associés à l'autre paire de poids excentriques sont disposés à proximité de l'autre extrémité du boîtier.
  6. Dispositif vibrant selon l'une quelconque des revendications précédentes, caractérisé en ce que les engrenages (17, 19) pour entraîner les poids excentriques sont logés dans une partie de boîtier qui est séparée de la partie de boîtier qui loge les poids excentriques.
  7. Dispositif vibrant selon la revendication 6, caractérisé en ce que la partie de boîtier qui loge les engrenages comprend deux parties (30) séparées l'une de l'autre, une partie logeant les engrenages associés à la première paire de poids excentriques (2, 3) et l'autre partie logeant les engrenages associés à l'autre paire de poids excentriques (4, 5).
  8. Dispositif vibrant selon la revendication 6, caractérisé en ce que les engrenages disposés à proximité des deux extrémités du boîtier sont logés dans les parties de boîtier (30) séparées de la partie de boîtier qui loge les poids excentriques, alors que les engrenages (11, 17) associés à une paire de poids excentriques (2, 3) qui sont logés dans une partie de boîtier (30), sont séparés des extrémités des arbres (8, 9) de l'autre paire de poids excentriques (4, 5) qui sont disposés dans la partie de boîtier en question.
  9. Dispositif vibrant selon l'une quelconque des revendications précédentes, caractérisé en ce que les poids excentriques (2, 5) s'étendent dans la direction longitudinale du boîtier (1).
EP04076398A 2003-05-30 2004-05-11 Un vibrateur avec deux paires de deux poids excentrés Revoked EP1481739B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1023574 2003-05-30
NL1023574A NL1023574C2 (nl) 2003-05-30 2003-05-30 Trilinrichting.

Publications (2)

Publication Number Publication Date
EP1481739A1 EP1481739A1 (fr) 2004-12-01
EP1481739B1 true EP1481739B1 (fr) 2011-07-20

Family

ID=33129168

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EP04076398A Revoked EP1481739B1 (fr) 2003-05-30 2004-05-11 Un vibrateur avec deux paires de deux poids excentrés

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EP (1) EP1481739B1 (fr)
AT (1) ATE516892T1 (fr)
NL (1) NL1023574C2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1867402A1 (fr) * 2006-06-15 2007-12-19 Visam S.r.l. Vibrateur amélioré
DE102013020690A1 (de) 2013-12-03 2015-06-03 Bomag Gmbh Schwingungserreger für einen Vibrationsverdichter sowie Baumaschine mit einem solchen Schwingungserreger
EP3165290B1 (fr) 2015-11-06 2021-04-07 BAUER Maschinen GmbH Dispositif de production de vibrations et procede d'introduction de profile dans un sol
GB2573535B (en) * 2018-05-08 2021-05-05 Terex Gb Ltd Adjustable vibratory drive system
CN115739247B (zh) * 2022-12-09 2023-07-04 连云港市第一人民医院 一种防凝的医疗检验用采血管放置装置及其使用方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6504278B1 (en) * 1998-05-08 2003-01-07 Gedib Ingenieurburo Und Innovationsberatung Gmbh Regulating device for adjusting the static moment resulting from unbalanced mass vibration generators

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR54751E (fr) * 1946-05-15 1950-08-01 Appareil générateur de vibrations
DE1149304B (de) * 1957-04-03 1963-05-22 Losenhausenwerk Duesseldorfer Bodenverdichter mit einem Unwuchtruettler zur Erzeugung gerichteter Schwingungen
DE1247399B (de) * 1964-03-28 1967-08-17 Philips Patentverwaltung Schrittweiser Antrieb fuer streifenfoermige Aufzeichnungstraeger
DE2919987C2 (de) * 1979-05-17 1985-08-01 Wacker-Werke Gmbh & Co Kg, 8077 Reichertshofen Umwuchtvibrator
NL1008635C2 (nl) * 1998-03-19 1999-09-21 Ice B V Trilinrichting en werkwijze voor het trillend aandrijven van een voorwerp.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6504278B1 (en) * 1998-05-08 2003-01-07 Gedib Ingenieurburo Und Innovationsberatung Gmbh Regulating device for adjusting the static moment resulting from unbalanced mass vibration generators

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Publication number Publication date
EP1481739A1 (fr) 2004-12-01
NL1023574C2 (nl) 2004-12-01
ATE516892T1 (de) 2011-08-15

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