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EP3450631B1 - Vibreur en profondeur avec une masse non équilibrée réglable - Google Patents

Vibreur en profondeur avec une masse non équilibrée réglable Download PDF

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Publication number
EP3450631B1
EP3450631B1 EP17189317.5A EP17189317A EP3450631B1 EP 3450631 B1 EP3450631 B1 EP 3450631B1 EP 17189317 A EP17189317 A EP 17189317A EP 3450631 B1 EP3450631 B1 EP 3450631B1
Authority
EP
European Patent Office
Prior art keywords
mass body
primary
rotation
primary mass
secondary mass
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
EP17189317.5A
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German (de)
English (en)
Other versions
EP3450631A1 (fr
Inventor
Peter Bohnert
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.)
Keller Holding GmbH
Original Assignee
Keller Holding GmbH
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 Keller Holding GmbH filed Critical Keller Holding GmbH
Priority to PL17189317T priority Critical patent/PL3450631T3/pl
Priority to ES17189317T priority patent/ES2774010T3/es
Priority to EP17189317.5A priority patent/EP3450631B1/fr
Priority to SG10201807258TA priority patent/SG10201807258TA/en
Priority to US16/117,498 priority patent/US10508401B2/en
Publication of EP3450631A1 publication Critical patent/EP3450631A1/fr
Application granted granted Critical
Publication of EP3450631B1 publication Critical patent/EP3450631B1/fr
Active legal-status Critical Current
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/068—Vibrating apparatus operating with systems involving reciprocating 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/054—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil involving penetration of the soil, e.g. vibroflotation
    • 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
    • B06B1/162—Making use of masses with adjustable amount of eccentricity
    • B06B1/164—Making use of masses with adjustable amount of eccentricity the amount of eccentricity being automatically variable as a function of the running condition, e.g. speed, direction

Definitions

  • the invention relates to a deep vibrator for compacting a soil by means of a rotating unbalance.
  • the rotating unbalance creates vibrations that compress the soil vibrator and possible additional material.
  • Deep vibrators are generally used in three subsoil improvement methods that differ in terms of operation and load transfer.
  • the Rüttel réellebacter coarse-grained soils are compressed in itself.
  • load-bearing columns made of gravel or crushed stone are placed in mixed and fine grained, non-compactible soils.
  • pile-like foundation elements are produced over which relatively high loads can be removed, if a permanent load-bearing composite with Stopfklalen is not guaranteed.
  • the vibrator contains a motor driven unbalance, which puts the vibrator in horizontal vibrations.
  • the deep vibrator is adapted to the intended working depth with attachment tubes and thereby guided by cranes, excavators or specially developed carrier devices (carrying crawlers).
  • From the DE 10 2014 019 139 A1 is a deep vibrator for compacting a soil with a first imbalance weight and a fastener for interchangeable receiving a second imbalance weight known.
  • the first imbalance weight and the second imbalance weight can be driven in rotation about the longitudinal axis of the deep vibrator.
  • the fastening element is arranged such that the imbalance of the deep vibrator can be reduced by the recorded second imbalance weight.
  • a deep vibrator for compacting soils with an elongated housing having a longitudinal axis and a coaxially mounted in the housing motor-driven axis of rotation and a revolving with the axis of rotation unbalanced mass known.
  • Means are provided for varying the radial distance of the center of gravity of the imbalance mass from the longitudinal axis and a variable-speed drive for the axis of rotation. By changing the size of the imbalance mass, the effective impact force during lowering and / or pulling is changed.
  • Deep vibrators with adjustable eccentric need a mechanical device for adjusting the imbalance masses.
  • the adjustment mechanism is subjected to high loads due to the strong vibrations, which can lead to failure of individual mechanical parts.
  • the present invention is therefore based on the object to propose a vibrator with adjustable unbalanced mass, which is simple and robust and thus has a long life. It should also be proposed a corresponding method for compacting ground, that allows a change in the imbalance mass during operation.
  • a rotary drive which is rotationally driven in two directions, a drive shaft which is drivingly connected to the rotary drive, a primary mass body, which is rotatably connected to the drive shaft and together with this order rotating the rotational axis, a secondary mass body limitedly rotatable relative to the primary mass body and assuming a first rotational position relative to the primary mass body upon rotation of the drive shaft in the first rotational direction, in which a center of gravity of the secondary mass body approximates a center of gravity of the primary mass body; and when rotating the drive shaft in the second direction of rotation occupies a second rotational position relative to the primary mass body, in which the center of gravity of the secondary mass body is spaced from the center of gravity of the primary mass body, wherein the center of mass of the secondary mass body pers and the center of mass of the primary mass body have different radial distances from the axis of rotation.
  • the imbalance is variable by simply reversing the rotational direction of the rotary drive between two sizes, which can be due to the design of the first and secondary mass body such that their focal points on different radii can achieve particularly high imbalances or given a large variability in terms of adjustable imbalances is.
  • This causes the amplitude of the deep vibrator is adjustable by the adjustment in particularly large areas.
  • the amplitude in the first rotational position compared to the second rotational position can be more than doubled. To adjust the imbalance, only the direction of rotation of the rotary drive must be changed, for which it must be stopped briefly.
  • the rotatable secondary mass body has a greater radial distance from the axis of rotation, as the rotationally fixed primary mass body.
  • the reversal is possible, that is, the rotatably connected to the shaft primary mass body has a greater radial distance from the axis of rotation, as the rotatable secondary mass body.
  • the rotary drive can have any configuration which is suitable for generating a rotational movement in two directions of rotation.
  • the rotary drive can be designed in the form of an electric motor or a hydraulic drive.
  • An electric motor may have a stator which is non-rotatably connected to a housing of the deep vibrator or is supported with respect to this in the sense of rotation, and a rotor which is connected to a motor shaft in order to drive them.
  • the drive shaft which carries the primary and secondary mass bodies, is drive-connected to the rotary drive.
  • drive-connected is intended to encompass an indirect connection of said drive parts, ie the possibility that one or more further components or components may be interposed between the rotary drive and the drive shaft in the power path, for example a clutch or a gearbox.
  • primary mass body in particular present at least one mass body which is rotatably connected to the drive shaft.
  • a “mass body”, in particular, refers to a mass body which is adjustable relative to the primary mass body, so that the center of gravity of the total mass changes.
  • One or more primary and secondary mass bodies may be provided. Accordingly, it should be understood that within the context of the present disclosure, any reference to a primary or secondary mass body may apply to any other corresponding primary or secondary mass body.
  • the masses of the primary and secondary mass bodies can be selected as needed and the desired amplitude of the deep vibrator.
  • a big variability can be achieved in particular if the primary and secondary mass body have different sized masses.
  • the primary mass body may have a greater or lesser mass compared with the secondary mass body. It is favorable for a large oscillation amplitude if the mass body whose center of gravity has the greater distance from the axis of rotation also has the larger mass. This may be the primary or secondary mass body. It is also conceivable that the masses of the primary and secondary mass body are the same size.
  • the center of mass resulting from the primary mass body and the secondary mass body in the first rotational position has a greater distance from the axis of rotation than the center of mass resulting from the primary mass body and the secondary mass body in the second rotational position.
  • the center of gravity of the primary and secondary mass bodies are in the first rotational position on a common side and in the second rotational position on opposite sides with respect to the axis of rotation of the drive shaft.
  • a first stop is provided, against which the secondary mass body is supported upon rotation of the rotary drive in the first rotational direction, and a second stop against which the secondary mass body is supported in rotation of the rotary drive in the second rotational direction.
  • first and second stop are formed on a common stop element, for example, as two effective in opposite circumferential directions stop surfaces of the stop element.
  • exactly one stop element per secondary mass body is provided which forms the first rotational stop and the second rotational stop.
  • the stop element may be provided on the primary mass body, in particular be firmly connected thereto.
  • the connection of the stop element on the primary mass body for example be realized by a screw, with other compounds such as a welded joint are also conceivable.
  • the abutment member may be configured, for example, in the form of an abutment bar fixedly connected to the primary mass body and extending parallel to the rotation axis along an outer peripheral surface of the primary mass body.
  • the first mass body comprises a cylinder segment, which preferably extends through approximately 180 ° about the axis of rotation.
  • the mass body can be made in one piece with the drive shaft.
  • the mass body can also initially be manufactured separately and then connected to the drive shaft rotationally fixed and axially fixed, for example by means of a shaft toothing or shaft-hub connection with suitable axial securing means.
  • the secondary mass body may comprise a ring segment which is rotatably mounted about the drive shaft.
  • the ring segment may, for example, extend by more than 160 ° and / or less than 180 ° about the axis of rotation.
  • the secondary mass body can be arranged with axial overlap to the primary mass body.
  • the mass bodies are preferably designed so that a smallest inner radius of a ring segment of the secondary mass body is greater than a largest outer radius of the primary mass body.
  • the secondary mass body lies radially outside the primary mass body.
  • the secondary mass body comprises in this embodiment, an upper lid part which is fixedly connected to an upper end of the ring segment, and a lower lid part, which is fixedly connected to a lower end of the ring segment, wherein the two lid parts radially inwardly at least indirectly are rotatably mounted on the drive shaft.
  • the primary mass body is spatially accommodated in the first rotational position in the secondary mass body.
  • the secondary mass body can also be arranged with axial offset to the primary mass body, that is to say above and / or below a respective axial end of the primary mass body.
  • This embodiment is particularly suitable for applications in which only a small additional imbalance or amplitude increase is needed.
  • the secondary mass body is at least partially disposed radially outside of the primary mass body or that the center of mass of the secondary mass body has a greater radial distance from the axis of rotation than the center of mass of the primary mass body.
  • the stop element is designed according to the configuration of the secondary mass body.
  • the stop element may be radially projecting with respect to an outer peripheral surface of the primary mass body to act as a driver for the secondary mass body upon rotation of the drive shaft.
  • the stop element may extend in the axial direction over at least one third of the height of the primary mass body.
  • the stop element can protrude axially, in particular with respect to an axial end side of the primary mass body.
  • At least one of the primary and the secondary mass body may include Schmermetall. Furthermore, a plurality of primary and / or secondary mass bodies can also be provided.
  • An imbalance assembly which is to be stored as a unit in a housing of the deep vibrator, may each comprise at least one shaft part, a primary and a secondary mass body.
  • the shaft part is rotatably supported in the housing of the deep vibrator by means of an upper bearing, which is arranged above the primary mass body, and by means of a lower bearing, which is arranged below the primary mass body.
  • a plurality of imbalance assemblies may be provided which are arranged one below the other.
  • the individual imbalance assemblies are preferably driven by a single rotary drive.
  • the motor shaft of the rotary drive can be rotatably connected to the drive shaft of a first assembly and the first drive shaft further rotatably connected to the drive shaft of an underlying second assembly.
  • Any number of further imbalance modules are possible.
  • the non-rotatable connection of the individual shaft parts with each other can be realized for example by means of a flange connection, shaft toothing or other shaft-hub connection.
  • Each individual assembly preferably has separate bearings for supporting the respective shaft part, so that the total bearing load is low. In this way, it is ensured that the deep vibrator withstands permanent large forces and vibrations even when designed with several imbalance assemblies.
  • a method of compacting soil by means of such a deep vibrator may include the steps of shaking the depth vibrator into the ground to a desired depth by rotating the rotary drive in a first or second rotational direction and compacting the soil by rotating the rotary drive in the second rotational direction.
  • By turning the rotary drive in the second direction of rotation large vibration amplitudes and thus a high compression are generated.
  • the shaking to the desired depth can be done with small or large amplitude.
  • FIGS. 1 to 7 their common features are described below together.
  • a section of a deep vibrator 2 is shown.
  • a deep vibrator serves to compact soil by means of an imbalance.
  • Imbalance is understood to mean a rotating body whose mass is not distributed rotationally symmetrically.
  • the mass inertia axis of the mass body is offset from the axis of rotation, so that the imbalance generated during rotation oscillations, with which the soil and possible addition material is compacted.
  • the deep vibrator 2 accordingly comprises a rotary drive 3, a drive shaft 4 which can be driven in rotation therewith, a first mass body 5 which is non-rotatably connected to the drive shaft 4, and a second mass body 6 which is adjustable in rotation relative to the first mass body 5.
  • the components mentioned are accommodated in a housing 7 of the deep vibrator 2, or mounted rotatably in this. It is envisaged that the first and second mass body 5, 6 with respect to their shape and / or mass and / or their respective center of gravity distance to the drive shaft 4 from each other.
  • the rotary drive 3 is designed in the form of an electric motor which comprises a stator 8 supported in rotation with respect to the housing 7 and a rotor 9 which is rotatable relative thereto. It is understood, however, that other engines are used, such as a hydraulic drive.
  • the rotor 9 of the electric motor 3 is connected to a motor shaft 10 for driving it in rotation.
  • the motor shaft 10 is in the housing 7 by means of a first bearing 12, which is arranged above the rotary drive 3, and a second bearing 13, which is arranged below the rotary drive 3 rotatably mounted about a rotation axis A.
  • the rotary drive 3 is designed so that it can drive the motor shaft 10 in two directions, ie clockwise and counterclockwise.
  • the motor shaft 10 is rotatably connected by means of suitable connecting means 14 with the underlying drive shaft 4 for transmitting a torque.
  • the connecting means 14 are in the present case designed in the form of a flange connection, it being understood that other shaft couplings for non-rotatable connection are also possible.
  • the drive shaft 4 is rotatably supported by means of suitable bearing means 15, 16 in the housing 7, for example by means of rolling bearings or plain bearings.
  • the first mass body 6, which may also be referred to as primary mass body, is rotatably connected to the drive shaft 4.
  • the rotationally fixed connection can be realized by known means, for example by means of a form-fitting shaft-hub connection and / or cohesively by means of welded connection. It is also possible that the drive shaft 4 is made in one piece with the first mass body 6.
  • the second mass body 6, which may also be referred to as a secondary mass body, is limitedly rotatable relative to the first mass body 5. It is provided that the secondary mass body 6 when rotating the drive shaft 4 in the first direction of rotation R1 assumes a first rotational position P1 and when turning the drive shaft 4 in the opposite second rotational direction R2, a second rotational position P2 relative to the first mass body 5.
  • first rotational position P1 which in the FIGS. 1 to 5 can be seen in the left half of the picture, the secondary mass body 6 is approximated to the primary mass body 5, or, the two mass body 5, 6 are located with respect to the axis of rotation A on the same half page.
  • the second rotational position P2 of the pivotable mass body 6, which in the FIGS.
  • each dashed line in the right half is shown (reference numeral 6 '), the secondary mass body 6 is spaced from the primary mass body 5, or the two mass body 5, 6 are located with respect to the axis of rotation A on opposite half sides. Due to this configuration, in that the resulting center of gravity Sres1 formed by the first and second mass bodies 5, 6 in the first position P1 of the mass body 6 has a greater radial distance from the axis of rotation A than the resulting center of mass Sres2 resulting from the first and second mass bodies 5, 6 when the secondary mass body (6 ') is in the second position P2. It follows that the size of the imbalance can be changed by simply reversing the direction of rotation (R1, R2) of the rotary drive 3 between two sizes. To adjust the imbalance, only the direction of rotation R1, R2 of the rotary drive 3 has to be changed, for which purpose it must be stopped briefly.
  • a special feature of the present invention is that the center of gravity S6 of the pivotable mass body 6 has a greater radial distance from the axis of rotation A than the center of mass S5 of the rotatably connected to the shaft 4 mass body 5, or that the pivotable mass body 6 relative to the rotationally fixed mass body 5 at least partially protruding radially.
  • this configuration particularly high imbalances can be achieved in the first rotational position P1, or the amplitude of the deep vibrator 2 can be adjusted in particularly large areas.
  • the amplitude in the first rotational position P1 compared to the second rotational position P2 can be more than doubled.
  • the primary mass body 5 comprises a cylinder segment which extends through 180 ° about the axis of rotation A.
  • the secondary mass body 6 is arranged in this embodiment with axial overlap to the primary mass body 5 and has a ring segment 17 with an upper lid portion 18 and a lower lid portion 19.
  • Upper cover part 18, ring segment 17 and lower cover part 19 form a half-shell, which is dimensioned so that the first mass body 5 can be accommodated therein when the second mass body 6 is in the first rotational position P1.
  • a smallest inner radius of the ring segment 17 of the secondary mass body 6 is greater than a largest outer radius of the primary mass body 6.
  • the half-shell-shaped mass body 5 is mounted on the drive shaft 4 via two bearings 20, 21.
  • the upper cover part 18 is arranged via a first bearing 20, which is arranged axially above the first mass body 5, and the lower cover part 19 via a second bearing 21 , which is arranged axially below the first mass body 5, rotatably mounted on the shaft 4. It is especially in FIG. 2 recognizable that the ring segment 17 extends over an angular range of slightly less than 180 ° about the axis of rotation A.
  • the relative rotational positions P1, P2 are each defined by a stop element 22 against which the secondary mass body 6 abuts upon rotation of the rotary drive 3 and is thus arranged in a defined rotational position relative to the primary mass body 5.
  • a stop element 22 is provided which forms both a stop in the first direction of rotation R1 and a stop in the second direction of rotation R2.
  • the stop element 22 is presently designed in the form of a bar or a bar, which is fixedly connected to the primary mass body 5, for example non-positively by means of screw or materially by means of welding.
  • the stopper member 22 protrudes radially beyond an outer circumferential surface of the primary mass body 5 and extends in the axial direction, such as in particular FIG.
  • a first side surface 23 of the strip 22 forms a first stop in the first direction of rotation R1 of the pivotable mass body 6, while an opposite second side surface 24 of the bar 22 forms a second stop in the opposite direction R1 of the mass body 6.
  • additional masses 25, 26 are provided, which are fixedly connected to the drive shaft 4.
  • the rotationally fixed connection with the shaft 4 can be produced for example by means of a positive shaft-hub connection.
  • at least one of the mass bodies 5, 6, 25, 26 includes Schmermetall.
  • the mass bodies may be made of a metallic material such as steel.
  • FIGS. 3 and 4 show a deep vibrator 2 in a slightly modified second embodiment. This corresponds largely to the embodiment FIGS. 1 and 2 , so that reference is made to the above description in terms of similarities. The same or modified details are provided with the same reference numerals as in the Figures 1 and 2 ,
  • two pivotable secondary mass body 6 1 , 6 2 are provided, which are rotatably mounted on the drive shaft 4 respectively.
  • a first pivotable mass body 6 1 is disposed above the primary mass body 5 and mounted by means of a connecting web 27 and the upper bearing 20 on the shaft 4.
  • a second pivotable mass body 6 2 is arranged below the primary mass body 5 and pivotally connected to the shaft 4 by means of a connecting web 28 and a lower bearing 21.
  • the two secondary mass body 6 1 , 6 2 are designed in the form of ring segments which extend over approximately 180 ° about the axis of rotation A. It is especially in FIG.
  • two stops 22 1 , 22 2 are provided corresponding to the number of pivotable masses 6 1 , 6 2 , which are each connected to the primary mass body 5.
  • the stops 22 1 , 22 2 are in each case axially beyond an end-side end face and radially beyond an outer peripheral surface 29 of the primary mass body 5. They are designed in the form of shorter beams, by the way as in the embodiment described above may be connected to the mass body 5.
  • the present embodiment builds radially slightly smaller, since a radial overlap between the pivotable mass body 6 1 , 6 2 and the rotationally fixed mass body 5 is given. Incidentally, construction and operation of the above embodiment correspond to the description thereof in order to avoid repetition.
  • FIG. 5 shows a deep vibrator 2 in another embodiment. This corresponds largely to the embodiment FIGS. 1 and 2 , so that reference is made to the above description in terms of similarities. The same or modified details are provided with the same reference numerals as in the Figures 1 and 2 or in the FIGS. 3 and 4 ,
  • the deep vibrator 2 comprises a plurality of imbalance assemblies 11 1 , 11 2 , which are each received as a unit in the housing 7.
  • Each unbalance assembly 11 1 , 11 2 each comprises a shaft part 4 1 , 4 2 , each by means of two bearings 12 1 , 13 1 ; 12 2 , 13 2 rotatably supported in the housing 7 and is rotatably driven by the rotary drive 3, and a primary and a secondary mass body 5, 6.
  • a first bearing 12 1 , 12 2 above and a second bearing 13 1 , 13 2 below the associated mass body 5, 6 arranged to ensure a secure radial bearing over the entire length of the shaft.
  • the individual shaft parts 4 1 , 4 2 are connected to each other via suitable shaft connections 14 1 , 14 2 , such as flange connections, wherein other connecting means are also conceivable.
  • suitable shaft connections 14 1 , 14 2 such as flange connections, wherein other connecting means are also conceivable.
  • two imbalance assemblies 11 1 , 11 2 are provided, which are driven by a single rotary drive. It will be appreciated that three or more imbalance assemblies may also be used to produce even greater vibration amplitudes. These are drive-connected with each other via further shaft connections (14).
  • FIGS. 6 and 7 show a deep vibrator 2 in another embodiment. This corresponds largely to the embodiment FIGS. 1 and 2 , so that reference is made to the above description in terms of similarities.
  • FIGS. 6 and 7 the primary mass body 5, which is non-rotatably connected to the drive shaft 4, that with a greater distance of the center of mass S5, while the pivotable about the drive shaft 4 mass body 6, the one whose center of gravity S6 is located on a smaller radius.
  • the non-rotatable mass body 5 comprises a ring segment 17, an upper lid 18 and a lower lid 19, which are fixedly connected to each other.
  • An axial support can be made via a thrust bearing.
  • the pivotable mass body 6 can be rotatably mounted on the drive shaft 4, for example by means of a sliding bearing 20 and a slide bushing.
  • the relative rotational positions P1, P2 of the pivotable mass body 6 are defined by a stop element 22, against which the mass body 6 strike upon rotation of the rotary drive 3 and is thus arranged in a defined rotational position relative to the rotationally fixed mass body 5.
  • the rotation stopper 22 is configured as a ledge or beam which is connected to the primary mass body 5 and protrudes radially inward from an inner circumferential surface. Otherwise, the embodiment corresponds to FIG. 6 in terms of structure and functioning of those according to FIGS. 1 and 2 , to the description of which reference is made.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Claims (15)

  1. Dispositif de vibration en profondeur pour le compactage de terre, comprenant :
    un entraînement rotatif (3) ;
    un arbre d'entraînement (4) apte à être entraîné de façon rotative par l'entraînement rotatif (3) dans une première direction (R1) et dans une deuxième direction (R2) opposée autour d'un axe de rotation (A) ;
    un corps de masse primaire (5) relié de manière fixe en rotation à l'arbre d'entraînement (4) et tournant autour de l'axe de rotation (A) conjointement avec celui-ci ;
    un corps de masse secondaire (6) apte à être déplacé, par la rotation de l'arbre d'entraînement (4) dans la première direction de rotation (R1), par rapport au corps de masse primaire (5), vers une première position de rotation (P1) dans laquelle un centre de gravité (S6) du corps de masse secondaire (6) est rapproché d'un centre de gravité (S5) du corps de masse primaire (5), et apte à être déplacé, par rotation de l'arbre d'entraînement (4) dans la deuxième direction de rotation (R2), par rapport au corps de masse primaire (5), vers une deuxième position de rotation (P2) dans laquelle le centre de gravité (S6) du corps de masse secondaire (6) est plus éloigné du centre de gravité (S5) du corps de masse primaire (5), le corps de masse secondaire (6) pouvant tourner ensemble avec le corps de masse primaire (5) autour de l'axe de rotation (A) dans la première et la deuxième position de rotation (P1) ;
    caractérisé en ce que
    le centre de masse (S6) du corps de masse secondaire (6) et le centre de masse (S5) du corps de masse primaire (5) présentant des distances radiales différentes par rapport à l'axe de rotation (A).
  2. Dispositif de vibration en profondeur selon la revendication 1,
    caractérisé en ce que
    le centre de masse (S6) du corps de masse secondaire (6) présente une distance radiale plus grande par rapport à l'axe de rotation (A) que le centre de masse (S5) du corps de masse primaire (5).
  3. Dispositif de vibration en profondeur selon la revendication 1 ou 2,
    caractérisé en ce que
    le corps de masse secondaire (6) peut être déplacé par rapport au corps de masse primaire (5) par une inversion de la direction de rotation de l'entraînement rotatif (3), un premier centre de masse (Sres1) résultant du corps de masse primaire (5) et du corps de masse secondaire (6) présentant, dans la première position de rotation (P1), une première distance par rapport à l'axe de rotation (A), laquelle est supérieure à une deuxième distance que présente un deuxième centre de masse (Sres2) résultant du corps de masse primaire (5) et du corps de masse secondaire (6), par rapport à l'axe de rotation (A), dans la deuxième position de rotation (P2).
  4. Dispositif de vibration en profondeur selon l'une des revendications 1 à 3,
    caractérisé en ce que
    il est prévu une première butée de rotation (23) contre laquelle s'appuie le corps de masse secondaire (6) lors d'une rotation de l'entraînement rotatif (3) dans la première direction de rotation (R1), et
    il est prévu une deuxième butée de rotation (24) contre laquelle s'appuie le corps de masse secondaire (6) lors d'une rotation de l'entraînement rotatif (3) dans la deuxième direction de rotation (R2).
  5. Dispositif de vibration en profondeur selon l'une des revendications 1 à 4,
    caractérisé en ce que
    l'une au moins parmi la première et la deuxième butée de rotation (23, 24) est prévue sur le corps de masse primaire (5).
  6. Dispositif de vibration en profondeur selon l'une des revendications 4 à 5,
    caractérisé en ce que
    l'une au moins parmi la première et la deuxième butée de rotation (23, 24) fait partie d'un élément de butée (22) relié fixement au corps de masse primaire (5).
  7. Dispositif de vibration en profondeur selon la revendication 6,
    caractérisé en ce que
    il est prévu exactement un élément de butée (22) comportant la première butée de rotation (23) et la deuxième butée de rotation (24).
  8. Dispositif de vibration en profondeur selon l'une des revendications 6 ou 7,
    caractérisé en ce que
    l'élément de butée (22) est conçu sous la forme d'une poutre de butée reliée fixement au corps de masse primaire (5) et fait saillie radialement par rapport à une surface périphérique extérieure (29) du corps de masse primaire (5) et s'étend sur au moins un tiers de la hauteur du corps de masse primaire (5) dans la direction axiale.
  9. Dispositif de vibration en profondeur selon l'une des revendications 1 à 8,
    caractérisé en ce que
    le corps de masse primaire (5) est conçu sous la forme d'un segment de cylindre s'étendant en particulier sur 180° autour de l'axe de rotation (A).
  10. Dispositif de vibration en profondeur selon l'une des revendications 1 à 9,
    caractérisé en ce que
    le corps de masse secondaire (6) comporte un segment annulaire (17) monté de façon rotative autour de l'arbre d'entraînement (4), le segment annulaire (17) s'étendant en particulier sur plus de 160° et/ou sur moins de 180° autour de l'axe de rotation (A).
  11. Dispositif de vibration en profondeur selon l'une des revendications 1 à 10,
    caractérisé en ce que
    le corps de masse secondaire (6) est disposé avec un recouvrement axial ou avec un décalage axial par rapport au corps de masse primaire (5).
  12. Dispositif de vibration en profondeur selon l'une des revendications 1 à 11,
    caractérisé en ce que
    le corps de masse secondaire (6) est disposé au moins partiellement radialement à l'extérieur du corps de masse primaire (5).
  13. Dispositif de vibration en profondeur selon l'une des revendications 1 à 12,
    caractérisé en ce que
    l'un au moins parmi les corps de masse primaire et secondaire (5, 6) contient du métal lourd.
  14. Dispositif de vibration en profondeur selon l'une des revendications 1 à 13,
    caractérisé en ce que
    le corps de masse primaire (5) et le corps de masse secondaire (6) sont disposés sur une section d'arbre (4), la section d'arbre (4) étant montée de façon rotative dans une partie de boîtier (7) du dispositif de vibration en profondeur, au moyen d'un palier supérieur (15) disposé au-dessus du corps de masse primaire (5) et au moyen d'un palier inférieur (16) disposé en dessous du corps de masse primaire (5).
  15. Dispositif de vibration en profondeur selon la revendication 14,
    caractérisé en ce que
    la section d'arbre (4) est relié à un autre segment d'arbre (4) pour la transmission du couple de rotation, l'autre segment d'arbre (4) portant un autre corps de masse primaire (5) et un autre corps de masse secondaire (6), l'autre segment d'arbre (4) étant monté de façon rotative dans une partie de boîtier (7) du dispositif de vibration en profondeur au moyen d'un palier supérieur (152) et d'un palier inférieur (162).
EP17189317.5A 2017-09-05 2017-09-05 Vibreur en profondeur avec une masse non équilibrée réglable Active EP3450631B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL17189317T PL3450631T3 (pl) 2017-09-05 2017-09-05 Wibrator wgłębny z regulowanym niewyważeniem
ES17189317T ES2774010T3 (es) 2017-09-05 2017-09-05 Vibrador en profundidad con masa desequilibrada regulable
EP17189317.5A EP3450631B1 (fr) 2017-09-05 2017-09-05 Vibreur en profondeur avec une masse non équilibrée réglable
SG10201807258TA SG10201807258TA (en) 2017-09-05 2018-08-27 Depth vibrator with adjustable imbalance
US16/117,498 US10508401B2 (en) 2017-09-05 2018-08-30 Depth vibrator with adjustable imbalance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17189317.5A EP3450631B1 (fr) 2017-09-05 2017-09-05 Vibreur en profondeur avec une masse non équilibrée réglable

Publications (2)

Publication Number Publication Date
EP3450631A1 EP3450631A1 (fr) 2019-03-06
EP3450631B1 true EP3450631B1 (fr) 2019-12-04

Family

ID=59790981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17189317.5A Active EP3450631B1 (fr) 2017-09-05 2017-09-05 Vibreur en profondeur avec une masse non équilibrée réglable

Country Status (5)

Country Link
US (1) US10508401B2 (fr)
EP (1) EP3450631B1 (fr)
ES (1) ES2774010T3 (fr)
PL (1) PL3450631T3 (fr)
SG (1) SG10201807258TA (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3517687B1 (fr) * 2018-01-26 2020-08-05 Keller Holding GmbH Procédé de détection et de commande de compactage lors du compactage d'un sol au moyen d'un vibreur en profondeur
DE202019105307U1 (de) * 2019-09-25 2019-10-21 Albert Schneider Tiefenrüttler zum Verdichten eines Bodens
CN113019873B (zh) * 2020-09-29 2023-09-12 南京利卡维智能科技有限公司 一种协震偏心振动装置及方法
CN115748655B (zh) * 2022-11-30 2023-06-20 北京振冲工程机械有限公司 一种液压振冲器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2948403A1 (de) * 1979-12-01 1981-06-04 Fritz Pollems KG Spezialtiefbau, 1000 Berlin Vibrator zur verdichtung von erdreich
FR2639376A1 (fr) * 1988-11-24 1990-05-25 Albaret Travaux Publics Sa Engin compacteur vibrant a amplitude modifiable
DE19930884B4 (de) 1999-07-05 2009-12-03 Keller Grundbau Gmbh Verfahren und Vorrichtung zur Tiefenverdichtung mit gesteuerter Frequenz- und Unwuchtänderung eines Tiefenrüttlers
DE202007003532U1 (de) * 2007-03-07 2007-07-05 Abi Gmbh Schwingungserreger
DE102014019139A1 (de) * 2014-12-23 2016-06-23 Rsm Grundbau Gmbh + Willi Meyer Bauunternehmen Gmbh In Gbr Tiefenrüttler mit veränderbarer Unwucht

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US10508401B2 (en) 2019-12-17
EP3450631A1 (fr) 2019-03-06
PL3450631T3 (pl) 2020-06-01
US20190071831A1 (en) 2019-03-07
SG10201807258TA (en) 2019-04-29
ES2774010T3 (es) 2020-07-16

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