EP3576890B1 - Engin de chantier avec générateur de vibrations et procédé de génération de vibrations - Google Patents

Engin de chantier avec générateur de vibrations et procédé de génération de vibrations Download PDF

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Publication number
EP3576890B1
EP3576890B1 EP18703701.5A EP18703701A EP3576890B1 EP 3576890 B1 EP3576890 B1 EP 3576890B1 EP 18703701 A EP18703701 A EP 18703701A EP 3576890 B1 EP3576890 B1 EP 3576890B1
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EP
European Patent Office
Prior art keywords
imbalance
shaft
drive
shafts
construction machine
Prior art date
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Application number
EP18703701.5A
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German (de)
English (en)
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EP3576890A1 (fr
Inventor
Hans-Philipp Otto
Wolfgang Kraus
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Bauer Maschinen GmbH
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Bauer Maschinen GmbH
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Publication of EP3576890A1 publication Critical patent/EP3576890A1/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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
    • E01C19/286—Vibration or impact-imparting means; Arrangement, mounting or adjustment thereof; Construction or mounting of the rolling elements, transmission or drive thereto, e.g. to vibrator mounted inside the roll

Definitions

  • the invention relates to a construction machine with a vibration generator according to claim 1.
  • the invention also relates to a method for generating vibrations according to claim 10.
  • Vibrators can be used for many different purposes. For example, they can be used in construction to introduce and / or remove shoring elements in or out of the ground. A vibrator with a vibration generator can be used for this. As a top-mounted vibrator, the vibrator can be placed on a shoring element, for example a sheet pile wall element, a plank or a pipe, in order to transmit vibrations to it when it is brought into or removed from a subsurface.
  • a shoring element for example a sheet pile wall element, a plank or a pipe
  • a vibration exciter for a vibration device with two unbalances arranged next to one another is known. Both imbalances are driven by a gearbox with a drive shaft, with a torque being transmitted from a motor to shafts of the gearbox and the imbalances that are mounted next to one another.
  • the vibrator for a machine for making concrete forms.
  • the vibrator has several imbalances arranged offset as imbalance pairs, one imbalance pair being driven by a drive shaft and the two imbalances of the imbalance pair being coupled to one another in the manner of a gear for torque transmission.
  • the imbalance pairs and the transmission provided for torque transmission form a unit which is excited to oscillate by the imbalances set in rotation.
  • the gearbox also experiences vibrations, which is heavily stressed as a result.
  • the invention is based on the object of specifying a vibration generator and a method for generating vibrations with which vibrations can be generated in a more targeted manner, in particular in a way that is gentle on the transmission.
  • the vibration generator according to the invention is characterized in that the gear arrangement distributes an input torque of the drive to a first output element for the first unbalance and at least one second output element for the at least second unbalance, that a first deflection element for torque transmission between the first output element of the gear arrangement and the first unbalance shaft is arranged and that a second deflection element is arranged for torque transmission between the second output element of the gear arrangement and the second unbalance shaft, the first compensation element and the second compensation element being formed, an axial offset between the first output element and the first unbalance shaft or the second output element and the second Compensate for the unbalance shaft.
  • a deflection element according to the invention allows a deflection essentially transverse to the shaft axis.
  • This can comprise essentially torsionally rigid, movable shafts or coupling elements, which are mounted in an angular and / or transverse manner.
  • a deflection element can therefore be understood in particular as a torsionally rigid, angularly movable coupling.
  • Such a coupling can be, for example, a cardan shaft that has at least one cross or cardan joint.
  • a deflecting element can also be understood to be a torsionally rigid, transversely movable coupling.
  • Such a coupling can be, for example, a bellows-like hollow shaft which is movable transversely to the shaft axis, or a radially adjustable disk.
  • the deflection elements can not only compensate for a radial offset, but also an axial and / or angular offset.
  • Providing or arranging a component of the vibration generator according to the invention between other components of the vibration generator according to the invention can be understood not only spatially but also functionally, in particular in the sense of an intermediate provision or arrangement.
  • a basic idea of the invention consists in arranging a transmission arrangement of a vibration generator provided for torque transmission in a manner that is essentially vibration-decoupled from the vibrating imbalances and their shafts.
  • a vibration-decoupled arrangement can be implemented by means of several deflecting elements, each deflecting element on the one hand allowing a torque transmission from the gear arrangement to an unbalanced shaft and on the other hand essentially reducing vibration transmission from the unbalanced shaft to the gear arrangement.
  • the vibration generator according to the invention thus has the advantage over known vibration generators that the vibrations generated by the imbalances are transmitted to a transmission to a lesser extent. This has the advantage that the transmission is less stressed and can therefore be operated with less wear.
  • the invention is based on a further finding that a vibration decoupling of the transmission from the vibrating unbalance shafts can be implemented independently of the spatial position of the transmission arrangement relative to the unbalance, if the unbalance shafts and the unbalances arranged on them are arranged in a particularly compact manner as an unbalance unit .
  • this compact arrangement is implemented by mounting the first unbalance shaft in the second unbalance shaft and by arranging the second unbalance around the first unbalance.
  • a preferred embodiment of the vibration generator according to the invention is that, in order to form an unbalance unit, the first unbalance shaft is rotatably mounted within the second unbalance shaft and that the second unbalance is arranged around the first unbalance.
  • a first deflection shaft is arranged for torque transmission between the gear arrangement and the first unbalanced shaft and a second deflection shaft is arranged for torque transmission between the gear arrangement and the second unbalanced shaft.
  • the unbalance unit can also be referred to as an unbalance cell.
  • a preferred embodiment of the vibration generator according to the invention is that at least one of the deflection elements is a cardan shaft which has a cardan joint on at least one side. Preferably there is one on both sides of the cardan shaft Cardan joint provided.
  • One of the cardan joints can connect the cardan shaft to one of the unbalances and the other cardan joint can connect the cardan shaft to the gear arrangement.
  • the cardan shaft is designed in such a way that it can absorb vibrations of the imbalances and the imbalance shafts in different directions, for example in a vertical or in a horizontal direction. That is, starting from a fixed gear arrangement, a torque can be transmitted via the cardan shaft to an unbalanced shaft, while the cardan joints move according to the vibratory movements of the unbalanced shafts.
  • the cardan shaft can also be designed as a hollow cardan shaft, in which another deflection element, preferably a second deflection or cardan shaft, is arranged coaxially.
  • the vibration generator according to the invention consists in that at least one of the deflecting element shafts is designed as a movable hollow shaft.
  • the movable hollow shaft can preferably be designed as a transversely movable hollow shaft. While the first deflection element as a cardan shaft can transmit a torque from the gear arrangement to the first unbalance shaft, the second deflection element as a movable hollow shaft can surround the first deflection element and transmit a torque to the second unbalance shaft, which surrounds the first unbalance shaft.
  • both the first deflection shaft with the first unbalanced shaft and the second deflection shaft with the second unbalanced shaft are connected in a rotationally fixed manner and both deflection shafts are connected in a rotationally fixed manner with the gear arrangement.
  • the gear arrangement can be provided on one side to the unbalances and these can thus only be driven from one side.
  • the vibration generator can thus be constructed in a particularly compact manner.
  • the movable hollow shaft can be designed as any torsionally rigid and at least transversely movable coupling.
  • a preferred embodiment of the vibration generator according to the invention consists in that the movable hollow shaft is designed as a metal bellows tube.
  • the metal bellows tube can have the function of a metal bellows coupling between the gear arrangement and the second unbalanced shaft.
  • a metal bellows tube can have a central bellows and two outer bellows Have hubs.
  • the central bellows allows the two hubs to be displaced relative to one another transversely to the hollow shaft axis.
  • the bellows of the metal bellows tube can absorb vibrations in particular transversely but also along the axis of the bellows.
  • the two hubs non-rotatably connected to the bellows enable a torsionally rigid coupling of the metal bellows tube with one of the unbalance shafts and with the gear arrangement.
  • Another preferred embodiment of the invention consists in that at least one of the deflecting elements has a movable coupling with a radially displaceable coupling disc.
  • two or more deflection levers are rotatably articulated at one of their ends on both sides of the radially displaceable clutch disc.
  • the respective other end of the deflection lever is rotatably arranged on the respectively adjacent shaft. That is, on the one hand, the levers are connected to the assigned output element of the gear arrangement and on the opposite side to the unbalanced shafts.
  • a clutch with such a radially displaceable clutch disc is preferably designed as a so-called Schmidt clutch.
  • the gear arrangement can be arranged or interposed in any way between the drive, in particular a drive motor, and the unbalanced shafts for transmitting a torque of the drive to the unbalanced shafts.
  • a preferred embodiment of the vibration generator according to the invention is that the gear arrangement is provided on one side of the unbalance unit. This can be provided in particular if the first and second unbalanced shafts are driven on one side. For this it can be particularly expedient to drive the first unbalanced shaft with a cardan shaft, in particular a cardan shaft, and the second unbalanced shaft with a movable hollow shaft surrounding the cardan shaft.
  • a gear drive shaft that is operatively connected to the gear arrangement is driven in rotation by the drive.
  • a torque is introduced into the gear arrangement in another known manner with a drive motor which is connected to the gear arrangement is effectively connected.
  • An adjustment drive for adjusting the rotational position of the unbalances can also be designed as a drive for torque transmission.
  • the gear arrangement can in particular have a gear drive.
  • the gear drive can be designed as a spur gear, which can drive the two unbalanced shafts synchronously.
  • a gear wheel of the gear arrangement can drive the first deflecting shaft and a further gear wheel of the gear arrangement can drive the second deflecting shaft.
  • the two gears for driving the two deflection shafts can also be arranged in two different gear trains. The two gear trains can be driven by the drive independently of one another, but in particular synchronously.
  • a preferred embodiment of the vibration generator according to the invention consists in that an adjusting motor for adjusting an angular offset of the imbalances with respect to one another is arranged on or in the gear arrangement.
  • the adjusting motor can have pivoting devices that can be adjusted relative to one another, in particular toothed wheels which can be rotated relative to one another, which are operatively connected to the deflection shafts and via which a torque can be transmitted.
  • the adjustable swivel devices can thus allow swiveling of the individual imbalances and / or imbalance shafts for their synchronization and, in the process, adjust gearwheels or gearwheels that drive the deflection shafts with respect to one another.
  • the gear arrangement can thus also be understood as a synchronization and drive gear.
  • a further preferred embodiment of the vibration generator according to the invention consists in that the second unbalance shaft is rotatably mounted in a housing which surrounds the first unbalance and the second unbalance.
  • the housing offers protection from the rotating and oscillating imbalances and, on the other hand, it can be used to attach a work tool to the vibration generator.
  • unbalance units in particular three or four, can also be arranged in a redundant manner within a housing, which can be driven jointly by the drive via the gear arrangement by means of two deflecting shafts each.
  • the gear arrangement can drive several unbalance units synchronously.
  • the gear arrangement preferably has a spur gear with one or more gear trains.
  • any work tools can be attached to the vibration generator.
  • the embodiment consists for the vibration generator according to the invention in that a clamping device for clamping a.
  • Working means namely a shoring element, for example a sheet pile wall element, is attached to the housing.
  • the clamping device can have a parallel gripper for gripping and clamping the work equipment. Vibrations can be transmitted via the housing to the clamping device and further to the work equipment. For example, the installation of a shoring element in the ground can be made easier.
  • the construction machine according to the invention has the vibration generator according to the invention.
  • the embodiment of the construction machine according to the invention which has a mast which is arranged on a carrier unit, consists in that the vibration generator is arranged on a slide guided on the mast, the gear arrangement and the drive of the vibration generator being attached to the slide.
  • the adjusting motor can also be attached to the slide.
  • the carriage of the construction machine guided on the mast can also be vibration-decoupled in this way. Vibrations generated by the imbalances can be transmitted to a working tool arranged on the housing via a housing surrounding the imbalance unit. This can be, for example, a clamping device for clamping a shoring element and for introducing it into the ground.
  • a leader can be understood as a guide device of a ram which can insert pipes or sheet piles into the building site.
  • a leader-guided vibration generator in particular a leader-guided attachment vibrator, has the advantage that a shoring element can be introduced into the ground with greater accuracy than with a free-moving attachment vibrator.
  • a first deflection shaft transmits the torque of the drive from a first output element of the gear arrangement to the first unbalance shaft and that a second deflection element transmits the torque of the drive from a second output element of the gear arrangement to the second unbalance shaft, the first compensation element and the second compensation element being formed, a Compensate for axial offset between the first output element and the first unbalanced shaft or the second output element and the second unbalanced shaft.
  • the second unbalance revolves around the first unbalance, the first unbalance shaft being mounted within the second unbalance shaft, a first deflection shaft transmitting the torque of the drive from the gear arrangement to the first unbalance shaft and a second deflection shaft the torque of the drive from the Transmission arrangement transfers to the second unbalance shaft.
  • a preferred embodiment of the method according to the invention consists in that the two unbalanced shafts are driven to rotate in opposite directions. Due to the counter-rotating drive of the unbalance shafts and the resulting counter-rotating unbalances, vibrations in one plane, for example the horizontal spatial plane, can be compensated, whereby vibrations in another plane, for example the vertical spatial plane, can add up.
  • the gear arrangement can be designed as a synchronization gear.
  • Synchronously driven imbalance shafts can be understood to mean simultaneously driven imbalance shafts, that is to say driven at the same angular speed.
  • the imbalance shafts can be driven synchronously rotating in the same direction or driven synchronously rotating in opposite directions.
  • another advantageous embodiment of the method according to the invention consists in correcting an offset of the imbalances in a starting position of the imbalances in which the imbalances are arranged opposite one another.
  • Such an offset correction makes it possible, in particular, that when the two imbalances are driven in opposite directions in the upper starting position and in oppose a lower position, that is to say they meet, with an angular offset of 90 ° to the two positions opposite one another, as a result of which vibrations in this plane are compensated.
  • a structure can be erected.
  • a structure can, for example, be a construction pit enclosure which is erected with shoring elements that have been introduced into the ground using the vibration generator according to the invention.
  • Figures 1 to 3 each show a vibration generator 100, 200 with a large number of unbalance units 2.
  • the individual unbalance units 2 are designed essentially the same in all these embodiments of the vibration generator 100, 200.
  • a single unbalance unit 2 comprises a first unbalance shaft 12 with a first unbalance 10 and a second unbalance shaft 22 with a second unbalance 20.
  • the first unbalance shaft 12 and the second unbalance shaft 22 are mounted coaxially, the first unbalance shaft 12 being at least partially within the second unbalance shaft 22 is located.
  • the second unbalanced shaft 22 is designed as a hollow shaft.
  • the first unbalanced shaft 12 is supported in the second hollow unbalanced shaft 22 by means of a first unbalanced radial bearing 14.
  • the first unbalance 10 with a shaft-hub connection 13 is arranged on the first unbalanced shaft 12.
  • the shaft-hub connection 13 can be a feather key connection.
  • the second unbalance shaft 22 surrounds the first unbalance 10, the second unbalance 20 being arranged on or in the outer surface of the second unbalance shaft 22 in such a way that it is offset radially outward to the common shaft axis 3 of the coaxially arranged first unbalance shaft 12 and second unbalance shaft 22 . If both imbalances 10, 20 are set in rotation, the second imbalance 20 thus revolves around the first imbalance 10.
  • the second unbalanced shaft 22 is mounted in a housing 50 with second unbalanced radial bearings at both ends of the second unbalanced shaft 22.
  • Second unbalanced radial bearings 24 and first unbalanced radial bearings 14 are arranged at the end sections of the first unbalanced shaft 12 and the second unbalanced shaft 22, with the two unbalanced masses 10, 20 being arranged between the two end sections.
  • the housing 50 thus surrounds the two unbalances 10, 20, which can rotate inside the housing 50.
  • the housing 50 can house the imbalances 10, 20 and at least in sections the imbalance shafts 12, 22.
  • the unbalance units 2 and the housing 50 form a vibrating unit, since vibrations generated by the unbalances are transmitted to the housing 50 via the unbalance shafts 12, 22.
  • the Figures 1 to 3 also each show a clamping device 60 as a work tool to which vibrations can be transmitted with the vibration generators 100, 200 according to the invention.
  • the two unbalanced shafts 12, 22 are articulated with a cardan shaft 15 and a movable hollow shaft 115 on a gear arrangement 30. These two deflection shafts, the cardan shaft 15 and the movable hollow shaft 115, are arranged coaxially.
  • the cardan shaft 15 is located inside the movable hollow shaft 115.
  • a common shaft axis of the cardan shaft 15 and the movable hollow shaft 115 can be parallel to the shaft axis 3 of the unbalanced shafts 12, 22 when the vibration generator 100 is in a rest position.
  • the cardan shaft 15 is articulated with a first cardan joint 5 on the first unbalanced shaft 12 and is articulated with a second cardan joint 5 on a gear shaft 37 of the gear arrangement 30 that is driven to rotate by a drive (not shown).
  • a torque of the driven gear shaft 37 can thus be transmitted via the cardan shaft 15 to the first unbalance shaft 12 and the first unbalance 10.
  • the movable hollow shaft 115 can be designed, for example, as a metal bellows tube.
  • the movable hollow shaft 115 is flanged to the second unbalanced shaft 22 by a first hub 7.
  • This first hub 7 can therefore be referred to as the unbalance hub of the movable hollow shaft 115.
  • the latter is flange-mounted with a second hub 7 on an output gear rim 35 of the gear arrangement 30.
  • the second hub 7 can therefore be referred to as the gear wheel hub of the movable hollow shaft 115.
  • the movable hollow shaft 115 is flanged to the second unbalanced shaft 22 by means of two flange hubs 7 for torque transmission from an output gear rim 35 of the gear arrangement 30.
  • the output gear rim 35 can also be mounted radially with a gear rim bearing 39 on the driven transmission shaft 37. With the gear arrangement 30, a torque can be transmitted from the driven gear shaft 37 via an adjusting motor 40 to the output gear rim 35 and thus also to the movable hollow shaft 115 and the second unbalanced shaft 22.
  • both the cardan shaft 15 and the movable hollow shaft 115 can move in the direction of vibration and thus absorb or cushion vibrations.
  • a gear arrangement 30 which transmits a torque of a drive (not shown) to three unbalance units 2.
  • the gear arrangement 30 has two gear trains, both of which are driven by the drive.
  • the two gear trains extend from the adjusting motor 40, which has two intermediate gear wheels 32, 33 which can be adjusted and locked relative to one another.
  • a torque can be transmitted from the drive via the adjusting motor 40 to the unbalanced shafts 12, 22 and when the intermediate gears 32, 33 are not locked, an angular offset between the unbalances 10, 20 can be set or corrected by the adjusting motor 40.
  • the first gear train forms a spur gear consisting of several intermeshing drive wheels 36 that are driven synchronously by the driven gear shaft 37.
  • a gear shaft 41 is axially located on each of these drive wheels 36, which is connected to a cardan shaft 15 via one of the cardan joints 5 in a rotationally rigid manner.
  • One of the transmission shafts 41 is the driven transmission shaft 37.
  • the drive wheels 36 of the spur gear can have the same circumference, with which the gear shafts 41 are driven at the same speed and therefore the imbalance shafts 12 linked to the cardan shafts 15 also rotate at the same speed, that is, rotate.
  • the second gear train has several output gear rims 35 for torque transmission from the drive to the second imbalances 20.
  • the output gear rims 35 mesh with one another as spur gears and are driven via the intermediate gears 32, 33.
  • the output gear rims 35 can also have the same circumference and can thus be driven at the same speed.
  • the gear shafts 41 of the first gear train are each supported in the output gear rims 35 by means of a gear shaft radial bearing 38.
  • a transmission shaft 41 thus passes through an output gear rim 35.
  • the adjusting motor 40 can be designed in such a way that the two intermediate gears 32, 33 and thus also the two unbalanced shafts 12, 22 are driven by the drive in the same direction or in opposite directions.
  • the drive, the adjusting motor 40 and / or the gear arrangement 30 can be attached to a construction machine or a construction tool (both not shown). Due to the movable articulation with the cardan shafts 15 and the movable hollow shafts 115, vibrations of the unbalance units 2 and the housing 50 are absorbed by the deflection shafts, the cardan shafts 15 and the movable hollow shafts 115. The vibrations generated by the unbalance units 2 are essentially not transferred to the gear arrangement 30 and the drive.
  • brackets 70 are shown, in which the gear shafts 41 can be supported with radial gear shaft bearings 38. Further brackets for attaching the gear arrangement 30, the adjusting motor 40 and the drive, for example on the construction machine (not shown) or the construction tool, can also be provided.
  • Figures 1 to 3 each show a clamping device 60 which is attached to the vibrating housing 50.
  • the clamping device 60 can clamp a sheet pile wall element, for example, in order to transmit vibrations of the vibration generator 100, 200 to these.
  • the vibration generator 100 shown differs from that in FIG Figure 1 embodiment shown only in that four unbalance units 2 are provided instead of three unbalance units 2.
  • the vibration generator 100 can be designed with any number of unbalance units 2.
  • a large number of unbalance units 2 advantageously describes a vibration redundancy concept for amplifying the vibration forces generated.
  • first unbalanced shaft 12 is articulated with a first cardan shaft 15 to a first gear train of the gear arrangement 30 and the second unbalanced shaft 22 is articulated with a second cardan shaft 225 on a second gear train of the gear arrangement 30.
  • Both cardan shafts 15, 225 each have two cardan joints 5.
  • the cardan shafts 15, 225 can thus be designed as a double cardan shaft.
  • the first cardan shaft 15 is articulated with a cardan joint 5 on the first unbalanced shaft 12 and is articulated with a further cardan joint 5 on a gear shaft 41 of the first gear train.
  • the second cardan shaft 225 is articulated with a cardan joint 5 on the second unbalanced shaft 22 and with another cardan joint 5 on a gear shaft 41 of the second gear train.
  • Both transmission trains each have a plurality of drive wheels 36, each with a transmission shaft 41.
  • the transmission shafts 41 are mounted in radial transmission shaft bearings 38 of a bracket 70.
  • the unbalance shafts 12, 22 of the in Figure 3 The three unbalance units 2 shown can be driven synchronously by the gear arrangement 30.
  • a drive shaft 242 is provided, on which the two intermediate gear wheels 32, 33 are arranged at each end.
  • the drive shaft 242 is mounted in the holder 70 with drive shaft radial bearings 243.
  • the bracket 70 can be attached to a construction machine (not shown) or a construction tool.
  • the drive shaft 242 or one of the two intermediate gears 32, 33 can be driven to rotate by the drive.
  • the unbalance units 2 can thus oscillate centrally between the gear trains of the gear arrangement 30, the cardan shafts 15, 225 absorbing the vibrations and essentially not transmitting them to the gear arrangement 30.
  • the illustrated embodiments of the vibration generator 100, 200 illustrate that compactly arranged pairs of unbalances 10, 20 can vibrate in the protection of a housing 50 from a gear arrangement 30 in a vibration-decoupled manner.
  • the gear arrangement 30 Due to the vibration decoupling, the gear arrangement 30 is less stressed on the one hand and the gear arrangement 30 can be designed to be variable, in particular on one or two sides, due to the described arrangement and articulation principle of the unbalanced shafts 12, 22.
  • FIG Fig. 4 Another embodiment of a vibration generator 300 according to the invention is shown in FIG Fig. 4 shown.
  • the basic structure of the vibration generator 300 with regard to the unbalance units 10, 20 corresponds to the structure described above, with a total of four unbalance units 10, 20 being mounted in the housing 50.
  • the gear arrangement 30 has a total of six wave-shaped output elements, reference being made to a first output element 77 and a second output element 78 for the following description.
  • the drive 80 has two hydraulic drive motors which introduce their torque into the common gear arrangement 30 , the gear arrangement 30 distributing the introduced torque evenly to the output elements 77, 78.
  • a servomotor 40 is also provided for relative adjustment of the unbalance units 10, 20 in a known manner.
  • a clutch 115 with a radially adjustable clutch disk 120 is arranged in each case opposite the associated second output element 78 of the gear arrangement 30.
  • Such a coupling 115 can also be referred to as a compensating coupling or Schmidt coupling.
  • the clutch 115 has a radially adjustable clutch disk 120, which is arranged between a drive disk 121 on the right and an output disk 122 on the left.
  • the drive pulley 121 is attached coaxially to the first output element 77, that is to say the first output shaft of the gear arrangement 30.
  • the output disk 122 is fastened non-rotatably and coaxially to the unbalance shaft 12 of the first unbalance 10.
  • the central clutch disk 125 is connected in an articulated manner to the drive disk 121 and the output disk 122 respectively via three pivotable levers 125.
  • corresponding bearing journals 126 are attached to each of the disks 120, 121, 122, on which the deflectable levers are pivotably or rotatably mounted.
  • the clutch 115 can transmit a torque between the output element and the associated unbalanced shaft, with a radial offset between the drive and output being able to be compensated at the same time.

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

Claims (13)

  1. Engin de chantier avec un mât qui est agencé au niveau d'une unité porteuse, et avec un générateur de vibrations (100, 200) comportant :
    - un boîtier (50),
    - un premier arbre à balourd (12) entraînable en rotation, sur lequel un premier balourd (10) est agencé,
    - au moins un second arbre à balourd (22) entraînable en rotation, sur lequel un second balourd (20) est agencé,
    - un entraînement (80) pour l'entraînement en rotation des arbres à balourd (12, 22) et
    - un agencement de transmission (30) qui est agencé entre l'entraînement (80) et les arbres à balourd (12, 22) pour la transmission d'un couple de l'entraînement (80) aux arbres à balourd (12, 22), et
    - un dispositif de serrage (60) pour le serrage d'un élément de coffrage à introduire dans la terre qui est fixé au boîtier (50),
    dans lequel le générateur de vibrations (100, 200, 300) est agencé au niveau d'un chariot guidé au niveau du mât et l'agencement de transmission (30) et l'entraînement (80) du générateur de vibrations (100, 200) sont fixés au chariot,
    dans lequel
    - l'agencement de transmission (30) distribue un couple d'entrée d'un entraînement commun (80) à un premier élément de sortie pour le premier balourd (10) et au moins un second élément de sortie pour l'au moins un second balourd (20),
    - un premier élément de déviation est agencé pour la transmission de couple entre le premier élément de sortie de l'agencement de transmission (30) et le premier arbre à balourd (12) et
    - un second élément de déviation est agencé pour la transmission de couple entre le second élément de sortie de l'agencement de transmission (30) et le second arbre à balourd (22),
    - dans lequel le premier élément de déviation et le second élément de déviation sont réalisés afin de permettre une déviation sensiblement transversale à l'axe d'arbre et de compenser un déport d'axe entre le premier élément de sortie et le premier arbre à balourd (12) ou le second élément de sortie et le second arbre à balourd (22).
  2. Engin de chantier (100, 200) selon la revendication 1,
    caractérisé en ce que
    - pour la formation d'une unité à balourds (2) le premier arbre à balourd (12) est logé de manière à pouvoir tourner dans le second arbre à balourd (22), et
    - en ce que le premier balourd (20) est agencé de manière à tourner autour du premier balourd (10).
  3. Engin de chantier selon la revendication 1 ou 2,
    caractérisé en ce que
    au moins un des éléments de déviation est un arbre de Cardan (15, 225) qui présente au moins au niveau d'un côté un joint de Cardan (5).
  4. Engin de chantier selon l'une des revendications 1 à 3,
    caractérisé en ce que
    au moins un des éléments de déviation présente un couplage (115) avec un disque de couplage (120) radialement mobile.
  5. Engin de chantier selon l'une des revendications 1 à 4,
    caractérisé en ce que
    au moins un élément de déviation est réalisé comme un arbre creux (115) mobile, en particulier comme un tube à soufflet métallique.
  6. Engin de chantier selon l'une des revendications 1 à 5,
    caractérisé en ce que
    l'agencement de transmission (30) est prévu d'un côté au niveau de l'unité à balourds (2).
  7. Engin de chantier selon l'une des revendications 1 à 6,
    caractérisé en ce que
    un moteur de réglage (40) est agencé pour le réglage d'un déport angulaire des balourds (10, 20) l'une par rapport à l'autre au niveau de l'agencement de transmission (30).
  8. Engin de chantier selon l'une des revendications 1 à 7,
    caractérisé en ce que
    le second arbre à balourd (22) est logé de manière à pouvoir tourner dans un boîtier (50), qui entoure le premier balourd (10) et le second balourd (20).
  9. Engin de chantier selon l'une des revendications 1 à 8,
    caractérisé en ce que
    le générateur de vibrations (100, 200) est guidé au niveau d'un mât.
  10. Procédé de fonctionnement d'un engin de chantier selon l'une des revendications 1 à 9, dans lequel
    - un entraînement commun (80) entraîne en rotation un premier arbre à balourd (12), sur lequel un premier balourd (10) est agencé, et un second arbre à balourd (22), sur lequel un second balourd (20) est agencé,
    - un agencement de transmission (30) qui est agencé entre l'entraînement (80) et les arbres à balourd (12, 22), transmet un couple de l'entraînement (80) aux arbres à balourd (12, 22),
    - un premier élément de déviation transmet le couple de l'entraînement (80) d'un premier élément de sortie de l'agencement de transmission (30) au premier arbre à balourd (12) et
    - un second élément de déviation transmet le couple de l'entraînement (80) d'un second élément de sortie de l'agencement de transmission (30) au second arbre à balourd (22),
    - dans lequel le premier élément de déviation et le second élément de déviation permettent une déviation sensiblement transversale à l'axe d'arbre et compensent un déport d'axe entre le premier élément de sortie et le premier arbre à balourd (12) ou le second élément de sortie et le second arbre à balourd (22).
  11. Procédé selon la revendication 10,
    caractérisé en ce que
    les deux arbres à balourd (12, 22) sont entraînés en rotation en sens inverse.
  12. Procédé selon la revendication 10 ou 11,
    caractérisé en ce que
    les deux arbres à balourd (12, 22) sont entraînés de manière synchrone.
  13. Procédé selon l'une des revendications 10 à 12,
    caractérisé en ce que
    un élément de coffrage est encastré au moyen du dispositif d'encastrement (60) au niveau du boîtier (50) du générateur de vibrations (100, 200, 300) et est introduit dans la terre.
EP18703701.5A 2017-02-03 2018-01-24 Engin de chantier avec générateur de vibrations et procédé de génération de vibrations Active EP3576890B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17154559.3A EP3357589A1 (fr) 2017-02-03 2017-02-03 Générateur de vibrations et procédé de production de vibrations
PCT/EP2018/051684 WO2018141601A1 (fr) 2017-02-03 2018-01-24 Générateur de vibrations et procédé permettant de générer des vibrations

Publications (2)

Publication Number Publication Date
EP3576890A1 EP3576890A1 (fr) 2019-12-11
EP3576890B1 true EP3576890B1 (fr) 2021-01-13

Family

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Application Number Title Priority Date Filing Date
EP17154559.3A Withdrawn EP3357589A1 (fr) 2017-02-03 2017-02-03 Générateur de vibrations et procédé de production de vibrations
EP18703701.5A Active EP3576890B1 (fr) 2017-02-03 2018-01-24 Engin de chantier avec générateur de vibrations et procédé de génération de vibrations

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP17154559.3A Withdrawn EP3357589A1 (fr) 2017-02-03 2017-02-03 Générateur de vibrations et procédé de production de vibrations

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US (1) US11420232B2 (fr)
EP (2) EP3357589A1 (fr)
CN (1) CN110234441B (fr)
WO (1) WO2018141601A1 (fr)

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FR2314776A1 (fr) 1975-06-16 1977-01-14 Babbitless Sa Dispositif vibrant a action dirigee
DE3709112C1 (de) 1986-08-27 1988-01-28 Knauer Maschf Gmbh Ruettelvorrichtung fuer eine Betonsteinformmaschine
DE4224113C2 (de) 1992-07-22 1996-04-04 Licentia Gmbh Schwingungserreger
US5584375A (en) * 1994-12-21 1996-12-17 Food Engineering Corporation Single drive vibrational conveyor with vibrational motion altering phase control and method of determining optimal conveyance speeds therewith
DE19529115A1 (de) * 1995-08-08 1997-03-06 Wacker Werke Kg Vibrationsmechanismus, insbesondere zur Verwendung zur Verdichtung von Böden
DE29516602U1 (de) * 1995-10-20 1995-12-21 Laukemann, Willy, 68782 Brühl Vibrationsantrieb für Schwingmaschinen
US6227760B1 (en) * 1998-02-06 2001-05-08 Mikasa Sangyo Co., Ltd. Travel control device for vibrating plate compactor
GB2356235A (en) * 1999-11-13 2001-05-16 Benford Ltd Compactor machine
JP2002129563A (ja) * 2000-10-20 2002-05-09 Chowa Kogyo Kk 同期連動杭打装置および同期連動杭打方法
US6637280B2 (en) * 2001-10-31 2003-10-28 Caterpillar Paving Products Inc Variable vibratory mechanism
DE10306791A1 (de) 2003-02-18 2004-08-26 Bomag Gmbh Schwingungserregervorrichtung
US6837648B1 (en) * 2004-05-27 2005-01-04 Theodore S. Wadensten Portable roller-type compactor apparatus having a combined means for the vibrating and the reversible propelling thereof
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US7316524B1 (en) * 2006-09-05 2008-01-08 Pikuet Kevin M Tamping device
BRPI0806196A2 (pt) * 2007-01-17 2013-01-01 New World Generation Inc turbina pneumática com gerador múltiplo e método de operação
EP2162607A4 (fr) * 2007-03-28 2012-02-29 Edward Charles Mendler Couplage de prise de mouvement
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EP3228392B1 (fr) 2016-04-05 2019-08-28 BAUER Maschinen GmbH Appareil de battage à vibrations

Also Published As

Publication number Publication date
US20200230652A1 (en) 2020-07-23
CN110234441B (zh) 2021-04-13
WO2018141601A1 (fr) 2018-08-09
EP3357589A1 (fr) 2018-08-08
CN110234441A (zh) 2019-09-13
US11420232B2 (en) 2022-08-23
EP3576890A1 (fr) 2019-12-11

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