EP3456879B1 - Soil compacting device - Google Patents

Soil compacting device Download PDF

Info

Publication number
EP3456879B1
EP3456879B1 EP18190928.4A EP18190928A EP3456879B1 EP 3456879 B1 EP3456879 B1 EP 3456879B1 EP 18190928 A EP18190928 A EP 18190928A EP 3456879 B1 EP3456879 B1 EP 3456879B1
Authority
EP
European Patent Office
Prior art keywords
vibration plate
motor
vibration
electric motor
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
EP18190928.4A
Other languages
German (de)
French (fr)
Other versions
EP3456879A1 (en
Inventor
Michael Steffen
Walter Unverdorben
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.)
Wacker Neuson Produktion GmbH and Co KG
Original Assignee
Wacker Neuson Produktion GmbH and Co KG
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 Wacker Neuson Produktion GmbH and Co KG filed Critical Wacker Neuson Produktion GmbH and Co KG
Publication of EP3456879A1 publication Critical patent/EP3456879A1/en
Application granted granted Critical
Publication of EP3456879B1 publication Critical patent/EP3456879B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • E02D3/074—Vibrating apparatus operating with systems involving rotary unbalanced masses
    • 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
    • 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
    • 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
    • E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
    • E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
    • E01C19/38—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight with means specifically for generating vibrations, e.g. vibrating plate compactors, immersion vibrators

Definitions

  • the invention relates to a vibration plate for soil compaction, with an upper mass and a lower mass, which is elastically coupled to the upper mass, with a vibration exciter device.
  • vibration plates are already well known and are used to compact loose ground in construction. For example, when backfilling construction pits or backing up sand and gravel, the material must be compacted in order to create the necessary load-bearing capacity. Only then can a final tar layer or plaster be applied.
  • Vibration plates have proven themselves because they are available in different sizes and weight classes, so that a suitable machine is available for the respective application.
  • rollers can also be used, but due to their size and the associated increased transport costs, they are only used for larger areas.
  • Vibratory plates are usually driven by internal combustion engines.
  • the internal combustion engine is arranged on the upper mass.
  • the driving force of the motor is transmitted from the upper mass by means of a belt drive or via a hydraulic connection to a vibration exciter, which is arranged on the lower mass.
  • the transmission of the drive force by means of belts or hydraulic lines often leads to problems due to the elastic coupling between the upper and lower mass and requires at least regular maintenance and control.
  • the internal combustion engine is maintenance-sensitive and generates harmful exhaust gases to which the operator is exposed in poorly ventilated construction site areas, such as a ditch.
  • a plate vibrator with an electric drive is known.
  • An electricity storage device is mounted on the upper mass of the plate vibrator.
  • a vibration exciter is arranged on the lower mass and has an electric drive motor.
  • the invention is based on the object of specifying a vibration plate which reduces the disadvantages of the known vibration plates and has a simple and low-maintenance design.
  • a vibration plate for soil compaction comprises an upper mass on which at least one energy storage element is arranged.
  • the upper mass is elastically coupled to a lower mass which has at least one ground contact plate and a vibration exciter device which acts on the lower mass.
  • the vibration exciter device has at least one electric motor which rotatably drives at least one rotatably mounted unbalanced mass and which can be driven by means of the electrical energy of the at least one energy storage element.
  • Such a vibration plate does not generate any harmful exhaust gases due to the use of electrical energy as the driving force.
  • the motor which provides the drive force for the unbalanced mass, is arranged on the lower mass, so that no mechanical or hydraulic energy has to be transferred from the upper mass to the lower mass.
  • a shaft of the electric motor can extend transversely to a longitudinal axis of the vibration plate. This arrangement is advantageous for driving the unbalanced masses. There is no need to redirect the rotation.
  • the longitudinal axis of the vibration plate is defined on the basis of the direction of advance of the vibration plate. During operation, the vibrating plate moves in a forward direction with the front end of the vibrating plate in front, while the operator guides the vibrating plate on a handle at the rear end of the vibrating plate. The longitudinal axis extends centrally from the front end of the vibrating plate to the rear end of the vibrating plate.
  • the vibration exciter device can have an electric motor with two unbalanced masses, the electric motor being arranged axially between the two unbalanced masses.
  • the unbalanced masses are rotatably connected to the shaft of the electric motor. With the central arrangement of the motor between the unbalanced masses, an even weight distribution on the lower mass is achieved. In addition, the storage of the two unbalanced masses and the motor shaft is also made easier
  • the at least one electric motor is designed as a brushless electric motor, in particular as an electric motor of the BLDC motor, SR motor or asynchronous motor types.
  • So-called BLDC motors are also under the names Brushless DC motor or brushless DC motor known.
  • SR motors are also known under the term reluctance motors. All these motors are characterized by their brushless design and thus their essentially maintenance-free and wear-free operation. The motors work reliably for a long time and can also be used in the rough everyday work on the construction site.
  • the vibration exciter device has at least two electric motors each with associated unbalanced masses, the electric motors together with the associated unbalanced masses being arranged spatially separated from one another on the lower mass.
  • the use of two electric motors with their respective unbalanced masses improves the movement behavior of the vibration plate.
  • the vibration plate is more comfortable for the operator to operate than when only using an electric motor with the associated unbalanced mass.
  • the at least two electric motors can be arranged in a staggered manner along the longitudinal axis of the vibration plate. This type of arrangement distributes the drive force of the unbalanced masses more evenly on the vibrating plate and leads to a better compaction result.
  • the vibration plate has an electronic control which controls and / or regulates the direction of rotation and the rotational speed of the at least one electric motor.
  • the monitoring of the energy store such as a so-called battery management system, can also be integrated in the electronic control.
  • the electronic controller can be designed to control and / or regulate the direction of rotation and / or the rotational speed of at least two electric motors and to set them independently of one another.
  • independent control of the two motors can result in advantageous movement properties of the vibration plate.
  • reverse travel of the vibration plate can thus be set if the electric motors are set in such a way that the resulting force vectors of the respective unbalanced masses cause reverse travel.
  • static vibration can also be set, or a variation of the advance speed.
  • the electronic control is arranged on the lower mass.
  • the electrical connections between the controller and the electric motor (s) are very short. This improves the response time of the electric motors or the motor. Since the motors, as a rule, rotate very quickly during operation and in particular Brushless electric motors require very fast control or regulation commands, the spatially close arrangement of the individual components has advantages.
  • the energy storage element is arranged decoupled from vibrations on the upper mass.
  • the lower mass is connected to the upper mass in a sprung manner. Nevertheless, the upper mass and thus also the energy storage element are exposed to vibrations.
  • the service life of the energy storage element can be extended if the vibrations are kept from it as best as possible. Vibration decoupling can be achieved, for example, by arranging rubber buffers between the energy storage unit and the upper mass.
  • Fig. 1 shows a highly schematic side view of a variant of the vibration plate (1) according to the invention with an upper mass (2) and a lower mass (5).
  • the upper mass (2) comprises a support frame (11) which is connected to a support plate (12). Furthermore, in the exemplary embodiment shown, the upper mass comprises at least one energy storage element (3) and an electronic controller (10), which are arranged on the support frame (11). Furthermore, the upper mass (2) comprises an irrigation device (14) and a guide bracket or drawbar (13) by means of which an operator can control the vibration plate.
  • At least one control element is arranged on the drawbar (13), by means of which an operator can control and / or regulate the function of the vibration plate, i.e. in particular can switch the vibration plate on and off.
  • the drawbar (13) is arranged on the upper mass (2) in a vibration-decoupled manner, so that harmful vibrations are only transmitted to the drawbar and thus to an operator in a reduced manner.
  • the irrigation device (14) comprises a container for holding water which, when the vibration plate is in operation, can be dispensed from a controlled, closable and openable outlet onto the soil to be compacted. This is particularly advantageous when compacting tar, in order to prevent the vibration plate from sticking to the tar.
  • the upper mass is connected to the lower mass (5) by means of damping elements (15).
  • the lower mass (5) comprises a soil contact plate (4) on which the vibration plate (1) moves over the soil to be compacted and acts on it.
  • the lower mass (5) comprises a vibration exciter device (6) which generates mechanical vibrations and transmits them to the ground contact plate (4) to which it is connected.
  • the energy storage element (3) is arranged on the upper mass (2) in a vibration-damped manner.
  • the energy storage element (3) is arranged on a holder (16) which is connected to the upper mass (2) in a vibration-damped manner.
  • the energy storage element (3) can also be in contact with the upper mass by means of vibration dampers such as rubber buffers.
  • the electronic control (10) can also be arranged on the upper mass (2) in a vibration-damped manner, for example by also being arranged on the holder (16).
  • the electronic control (10) is used to control and / or regulate the vibration exciter device (6).
  • the electronic control (10) is designed to influence and adjust the electric motor (7) of the vibration exciter device (6), i.e. in particular to adjust and vary its speed and direction of rotation. If an embodiment according to the invention provides a vibration exciter device (6) with several electric motors, the electronic control (10) is designed to set and influence the respective electric motors (7) independently of one another. In a variant, it is also possible to control one or more electric motors (7) as a function of the state of one or more other electric motors (7). For example, the speed and / or direction of rotation of a first electric motor (7) can serve as a reference for a further electric motor (7), on the basis of which the further electric motor (7) is then set.
  • FIG. 2 shows an exemplary vibration exciter device (6).
  • the vibration exciter device (6) comprises an electric motor (7) by means of which at least one
  • Unbalance mass (8) can be set in rotation.
  • the unbalanced mass (8) is preferably connected to the motor shaft (9) of the electric motor (7).
  • the electric motor (7) is preferably arranged between two unbalanced masses (8) so that it is positioned centrally and axially between the unbalanced masses (8).
  • the motor shaft (9) of the electric motor (7) can be led out of the motor housing on both sides of the electric motor.
  • the unbalanced masses (8) can be attached to the two ends of the motor shaft.
  • the motor shaft (9) can also be designed in such a way that the unbalanced masses (8) are an integral part of the motor shaft (9).
  • This variant makes it possible for two electric motors to be axially aligned with one another, the motor shafts (9) of the electric motors (7) being led out of the motor housings on the opposite sides facing away from the motors, with an unbalanced mass ( 8) is arranged.
  • the electric motors can be controlled independently of one another and, by means of different directions of rotation and / or speed, apply different centrifugal forces to the lower mass, which enables different driving maneuvers.
  • the vibration exciter device (6) is mechanically self-sufficient in terms of drive from the upper mass (2), i.e. the vibration exciter device is only supplied with electrical energy.
  • the electric motor (7) generates the mechanical force from the electrical energy to drive the unbalanced mass (s) (8). This means that the vibration exciter device is only supplied with electrical energy and it is not connected to the upper mass by means of a belt drive or a hydraulic system.
  • the electric motor (7) is connected to the upper mass with an electrical cable, which is not shown in the figures.
  • FIG 3 shows a highly schematic plan view of a ground contact plate (4) with a vibration exciter device (6).
  • the vibration exciter device (6) is arranged on the ground contact plate (4) and is firmly connected to it.
  • the vibration exciter device (6) is arranged centrally in the longitudinal direction, ie in the middle of the ground contact plate (4), the motor shaft running transversely to the longitudinal direction of the vibration plate.
  • the vibration exciter device (6) is arranged in a front half of the ground contact plate (4). This positioning gives the vibrating plate (1) the best movement properties.
  • the vibration exciter device (6) is particularly preferably arranged in a front third of the ground contact plate (4).
  • the vibration plate (1) can move when using a
  • Figure 4 shows a variant of the vibration plate (1) with two electric motors (7) or unbalance exciters.
  • a first electric motor (7) is arranged in a first half of the soil contact plate (4) and a second electric motor (7) in a second half of the soil contact plate (4).
  • the use of two electric motors (7) leads to an improved compaction performance and a more uniform movement behavior of the vibrating plate (1).
  • the motor shafts (9) of the two electric motors (7) are aligned parallel to one another and run transversely to the longitudinal axis of the vibration plate.
  • a vibrating plate (1) of this type can not only move forwards but also backwards and shake while standing.
  • the basic technical principles for this are known from the prior art, which is why they will not be discussed in more detail.
  • either forward travel, reverse travel or static vibration can be set.
  • the speed of movement can be continuously adjusted between a maximum forward speed and a maximum reverse speed. This is achieved by means of the electronic control, which can control and set the electric motors (7) independently of one another.
  • the vibration plate (1) moves towards the operator, i.e. in the direction of the end of the vibration plate on which the guide bracket (13) is arranged.
  • FIG. 5 Another variant is in Figure 5 shown, in addition to the two electric motors (7) as in Figure 4 at least one further electric motor (7) is also arranged on the ground contact plate (4).
  • Two electric motors (7) with motor shafts (9) are arranged transversely to the longitudinal axis of the vibration plate (1) and at least one further electric motor (7) with the motor shaft longitudinally, ie arranged parallel to the longitudinal axis.
  • two electric motors (7) are aligned with the motor shafts parallel to the longitudinal axis.
  • the vibrating plate (1) By means of this arrangement it is possible to design the vibrating plate (1) so that it is directionally controllable. If direction control is used in the following, rotation of the vibration plate (1) around the vertical axis is meant. In this case, the vibration plate (1) can be controlled not only forwards and backwards, but also to the left and right, for example. For this purpose, the directions of rotation and speeds of the electric motors (7) aligned along the longitudinal axis are adjusted to the operator's desire to drive, so that corresponding centrifugal forces are generated that move the vibration plate (1) in the desired direction.
  • the electronic control is designed accordingly to control the respective number of electric motors (7) individually and independently of one another.
  • FIG. 6 Another possibility for controlling the direction of a vibration plate (1) results from the design of the variant as shown in Figure 6 is shown.
  • three electric motors (7) are arranged on the ground contact plate (4).
  • Two electric motors (7) are axially aligned with one another. If a higher centrifugal force, ie speed, is set in one of the axially aligned electric motors (7) than in the other axially aligned electric motor (7), the vibration plate moves in its direction. If both axially aligned electric motors (7) run in the same direction of rotation and at the same speed, forward travel results.
  • FIG. 7 Another possibility for controlling the direction of a vibration plate (1) results from the design of the variant as shown in Figure 7 is shown.
  • three electric motors (7) are arranged on the ground contact plate (4).
  • Two electric motors (7) are arranged at an angle to one another. That is, the motor axes (17) of the electric motors (7) formed by the motor shafts (9) intersect.
  • a directional control is also available with the construction according to Figure 8 possible.
  • four electric motors (7) are arranged on the ground contact plate (4).
  • Two electric motors (7) are each axially aligned with one another.
  • Two more electric motors (7) are staggered in front of or behind them and are axially aligned with one another.
  • the rotary movement can be increased by turning the two electric motors (7) to the other side of the longitudinal axis in the opposite direction.
  • FIG. 8 Alternatively to the construction according to Figure 8 is also an arrangement of the electric motors (7) as in Figure 9 shown possible.
  • the electric motors (7) are arranged at an angle to one another in such a way that the motor axis (17) of one electric motor (7) intersects with the motor axes (17) of two other electric motors (7).
  • the electric motors are therefore all arranged at an angle to the longitudinal axis of the vibration plate (1), ie arranged in such a way that the motor axes (17) of all electric motors intersect with the longitudinal axis of the vibration plate (1).
  • the point of intersection of the motor axes (17) of two electric motors (7) preferably lies on the longitudinal axis of the vibration plate (1).
  • the arrangement can be chosen so that at least two of the electric motors (7) are arranged in a mirror image to the longitudinal axis.
  • Four electric motors (7) are preferably arranged in mirror image to the longitudinal axis.
  • Such an arrangement offers advantages with regard to the straight running of the vibration plate and also improves the steerability, i.e. the rotation around the vertical axis.
  • FIG. 10 Another variant for the construction of a vibration plate according to the invention is shown in Figure 10 shown.
  • the energy storage element (3) is formed therein from a multiplicity of individual accumulators which are arranged on the upper mass (2) and interconnected with one another.
  • An electronic controller (10) is provided to control the motor or motors.
  • the electronic control (10) is arranged on the upper mass (2).
  • the vibration exciter device (6) is constructed with just one electric motor (7) which drives two unbalanced masses (8).
  • the energy storage element in general, it is possible, i.e. regardless of the embodiments presented, to form the energy storage element from individual battery cells.
  • the battery cells can be replaced individually.
  • the charging module can be structurally integrated with the electronic control.

Description

Die Erfindung betrifft eine Vibrationsplatte zur Bodenverdichtung, mit einer Obermasse und einer mit der Obermasse elastisch gekoppelten Untermasse mit einer Schwingungserregereinrichtung.The invention relates to a vibration plate for soil compaction, with an upper mass and a lower mass, which is elastically coupled to the upper mass, with a vibration exciter device.

Derartige Vibrationsplatten sind bereits hinreichend bekannt und werden zur Verdichtung von losem Untergrund im Bauwesen eingesetzt. Beispielsweise muss bei der Verfüllung von Baugruben oder dem Aufschütten von Sand und Schotter das Material verdichtet werden, um die notwendige Tragfähigkeit herzustellen. Erst dann kann eine abschließende Teerschicht oder Pflaster aufgebracht werden.Such vibration plates are already well known and are used to compact loose ground in construction. For example, when backfilling construction pits or backing up sand and gravel, the material must be compacted in order to create the necessary load-bearing capacity. Only then can a final tar layer or plaster be applied.

Vibrationsplatten haben sich bewährt, da sie in unterschiedlichen Größen und Gewichtsklassen erhältlich sind, so dass für den jeweiligen Einsatzzweck eine passende Maschine zur Verfügung steht. Alternativ können auch Walzen genutzt werden, die jedoch auf Grund ihrer Größe und dem damit verbundenen erhöhten Transportaufwand erst bei größeren Flächen zum Einsatz kommen.Vibration plates have proven themselves because they are available in different sizes and weight classes, so that a suitable machine is available for the respective application. Alternatively, rollers can also be used, but due to their size and the associated increased transport costs, they are only used for larger areas.

Vibrationsplatten werden üblicherweise mittels Verbrennungsmotoren angetrieben. Dabei ist der Verbrennungsmotor auf der Obermasse angeordnet. Die Antriebskraft des Motors wird von der Obermasse mittels eines Riementriebs oder über eine hydraulische Verbindung auf einen Schwingungserreger übertragen, der an der Untermasse angeordnet ist. Die Übertragung der Antriebskraft mittels Riemen oder hydraulischen Leitungen führt aufgrund der elastischen Kopplung zwischen Ober- und Untermasse häufig zu Problemen und bedingt zumindest eine regelmäßige Wartung und Kontrolle. Ferner ist der Verbrennungsmotor wartungsanfällig und erzeugt gesundheitsschädliche Abgase, denen der Bediener in schlecht belüfteten Baustellenbereichen, wie z.B. einem Graben ausgesetzt ist.Vibratory plates are usually driven by internal combustion engines. The internal combustion engine is arranged on the upper mass. The driving force of the motor is transmitted from the upper mass by means of a belt drive or via a hydraulic connection to a vibration exciter, which is arranged on the lower mass. The transmission of the drive force by means of belts or hydraulic lines often leads to problems due to the elastic coupling between the upper and lower mass and requires at least regular maintenance and control. Furthermore, the internal combustion engine is maintenance-sensitive and generates harmful exhaust gases to which the operator is exposed in poorly ventilated construction site areas, such as a ditch.

In der EP 1 267 001 wurde vorgeschlagen, eine Vibrationsplatte mit elektrischem Antrieb auszustatten, wobei die notwendige elektrische Energie von einem mitgeführten wiederaufladbaren Akkumulator bereitgestellt wird. Sowohl der Akkumulator als auch der elektrische Antriebsmotor sind auf der Obermasse angeordnet.In the EP 1 267 001 It has been proposed to equip a vibrating plate with an electric drive, the necessary electrical energy being provided by a rechargeable battery that is carried along. Both the accumulator and the electric drive motor are arranged on the upper mass.

Aus der DE 199 53 553 A1 ist ein Plattenrüttler mit einem elektrischen Antrieb bekannt. Auf der Obermasse des Plattenrüttlers ist ein Stromspeicher gelagert. Ein Schwingungserreger ist an der Untermasse angeordnet und weist einen elektrischen Antriebsmotor auf.From the DE 199 53 553 A1 a plate vibrator with an electric drive is known. An electricity storage device is mounted on the upper mass of the plate vibrator. A vibration exciter is arranged on the lower mass and has an electric drive motor.

Der Erfindung liegt die Aufgabe zu Grunde, eine Vibrationsplatte anzugeben, die die Nachteile der bekannten Vibrationsplatten verringert und eine einfache und wartungsarme Bauweise aufweist.The invention is based on the object of specifying a vibration plate which reduces the disadvantages of the known vibration plates and has a simple and low-maintenance design.

Die Aufgabe wird erfindungsgemäß durch eine Vibrationsplatte mit den Merkmalen von Anspruch 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen angegeben.The object is achieved according to the invention by a vibrating plate having the features of claim 1. Advantageous refinements of the invention are given in the dependent claims.

Eine Vibrationsplatte zur Bodenverdichtung umfasst eine Obermasse an welcher mindestens ein Energiespeicherelement angeordnet ist. Die Obermasse ist elastisch mit einer Untermasse gekoppelt, die wenigstens eine Bodenkontaktplatte und eine die Untermasse beaufschlagende Schwingungserregereinrichtung aufweist. Die Schwingungserregereinrichtung weist wenigstens einen Elektromotor auf, welcher mindestens eine drehbar gelagerte Unwuchtmasse drehend antreibt und welcher mittels der elektrischen Energie des mindestens einen Energiespeicherelements antreibbar ist. Eine solche Vibrationsplatte erzeugt auf Grund der Nutzung von elektrischer Energie als Antriebskraft keine schädlichen Abgase. Ferner ist der Motor, der die Antriebskraft für die Unwuchtmasse bereitstellt auf der Untermasse angeordnet, so dass keine mechanische oder hydraulische Energie von der Obermasse auf die Untermasse übertragen werden muss.A vibration plate for soil compaction comprises an upper mass on which at least one energy storage element is arranged. The upper mass is elastically coupled to a lower mass which has at least one ground contact plate and a vibration exciter device which acts on the lower mass. The vibration exciter device has at least one electric motor which rotatably drives at least one rotatably mounted unbalanced mass and which can be driven by means of the electrical energy of the at least one energy storage element. Such a vibration plate does not generate any harmful exhaust gases due to the use of electrical energy as the driving force. Furthermore, the motor, which provides the drive force for the unbalanced mass, is arranged on the lower mass, so that no mechanical or hydraulic energy has to be transferred from the upper mass to the lower mass.

In einer Ausführungsform kann sich eine Welle des Elektromotors quer zu einer Längsachse der Vibrationsplatte erstrecken. Diese Anordnung ist vorteilhaft für den Antrieb der Unwuchtmassen. So kann auf eine Umlenkung der Rotation verzichtet werden. Die Längsachse der Vibrationsplatte definiert sich an Hand der Vortriebsrichtung der Vibrationsplatte. Die Vibrationsplatte bewegt sich dabei im Betrieb in eine Vorwärtsrichtung mit dem vorderen Ende der Vibrationsplatte voraus, während der Bediener die Vibrationsplatte an einem Griffbügel am hinteren Ende der Vibrationsplatte führt. Die Längsachse erstreckt sich mittig vom vorderen Ende der Vibrationsplatte zum hinteren Ende der Vibrationsplatte.In one embodiment, a shaft of the electric motor can extend transversely to a longitudinal axis of the vibration plate. This arrangement is advantageous for driving the unbalanced masses. There is no need to redirect the rotation. The longitudinal axis of the vibration plate is defined on the basis of the direction of advance of the vibration plate. During operation, the vibrating plate moves in a forward direction with the front end of the vibrating plate in front, while the operator guides the vibrating plate on a handle at the rear end of the vibrating plate. The longitudinal axis extends centrally from the front end of the vibrating plate to the rear end of the vibrating plate.

Ferner kann die Schwingungserregereinrichtung einen Elektromotor mit zwei Unwuchtmassen aufweisen, wobei der Elektromotor axial zwischen den beiden Unwuchtmassen angeordnet ist. Die Unwuchtmassen sind drehbar mit der Welle des Elektromotors verbunden. Mit der zentralen Anordnung des Motors zwischen den Unwuchtmassen wird eine gleichmäßige Gewichtsverteilung auf der Untermasse erreicht. Zudem wird auch die Lagerung der beiden Unwuchtmassen und der Motorwelle erleichtertFurthermore, the vibration exciter device can have an electric motor with two unbalanced masses, the electric motor being arranged axially between the two unbalanced masses. The unbalanced masses are rotatably connected to the shaft of the electric motor. With the central arrangement of the motor between the unbalanced masses, an even weight distribution on the lower mass is achieved. In addition, the storage of the two unbalanced masses and the motor shaft is also made easier

Als besonders geeignet hat sich erwiesen, wenn der mindestens eine Elektromotor als bürstenloser Elektromotor ausgestaltet ist, insbesondere als Elektromotor nach den Bauarten BLDC-Motor, SR-Motor oder Asynchron-Motor. Sogenannte BLDC-Motoren sind auch unter den Bezeichnungen Brushless DC-Motor oder bürstenloser Gleichstrommotor bekannt. SR-Motoren sind auch unter dem Begriff Reluktanzmotoren bekannt. Kennzeichnend für alle diese Motoren sind der bürstenlose Aufbau und damit der im Wesentlichen wartungsfreie und verschleißfreie Betrieb. Die Motoren arbeiten über lange Zeit zuverlässig und sind auch im rauen Baustellenalltag einsetzbar.It has proven to be particularly suitable if the at least one electric motor is designed as a brushless electric motor, in particular as an electric motor of the BLDC motor, SR motor or asynchronous motor types. So-called BLDC motors are also under the names Brushless DC motor or brushless DC motor known. SR motors are also known under the term reluctance motors. All these motors are characterized by their brushless design and thus their essentially maintenance-free and wear-free operation. The motors work reliably for a long time and can also be used in the rough everyday work on the construction site.

Eine weitere Variante ergibt sich, wenn die Schwingungserregereinrichtung mindestens zwei Elektromotoren mit jeweils zugeordneten Unwuchtmassen aufweist, wobei die Elektromotoren samt zugehöriger Unwuchtmassen räumlich getrennt voneinander auf der Untermasse angeordnet sind. Die Nutzung zweier Elektromotoren samt jeweils zugehöriger Unwuchtmassen verbessert das Bewegungsverhalten der Vibrationsplatte. Die Vibrationsplatte ist für den Bediener angenehmer zu bedienen als bei Nutzung nur eines Elektromotors mit zugehöriger Unwuchtmasse.Another variant results when the vibration exciter device has at least two electric motors each with associated unbalanced masses, the electric motors together with the associated unbalanced masses being arranged spatially separated from one another on the lower mass. The use of two electric motors with their respective unbalanced masses improves the movement behavior of the vibration plate. The vibration plate is more comfortable for the operator to operate than when only using an electric motor with the associated unbalanced mass.

In einer Ausführungsform können die mindestens zwei Elektromotoren entlang der Längsachse der Vibrationsplatte gestaffelt angeordnet sein. Diese Art der Anordnung verteilt die Antriebskraft der Unwuchtmassen gleichmäßiger auf die Vibrationsplatte und führt zu einem besseren Verdichtungsergebnis.In one embodiment, the at least two electric motors can be arranged in a staggered manner along the longitudinal axis of the vibration plate. This type of arrangement distributes the drive force of the unbalanced masses more evenly on the vibrating plate and leads to a better compaction result.

Als besonders vorteilhaft hat sich erwiesen, wenn die Vibrationsplatte eine elektronische Steuerung aufweist, welche die Drehrichtung und Drehgeschwindigkeit des mindestens einen Elektromotors steuert und/oder regelt. In der elektronischen Steuerung kann auch die Überwachung des Energiespeichers integrierst sein, wie beispielsweise ein sogenanntes Batteriemanagementsystem.It has proven to be particularly advantageous if the vibration plate has an electronic control which controls and / or regulates the direction of rotation and the rotational speed of the at least one electric motor. The monitoring of the energy store, such as a so-called battery management system, can also be integrated in the electronic control.

Ferner kann die elektronische Steuerung dazu ausgelegt sein, die Drehrichtung und/oder Drehgeschwindigkeit von mindestens zwei Elektromotoren zu steuern und/oder zu regeln und unabhängig voneinander einzustellen. Bei Nutzung von zwei Elektromotoren können sich durch eine voneinander unabhängige Ansteuerung der beiden Motoren vorteilhafte Bewegungseigenschaften der Vibrationsplatte ergeben. Beispielsweise kann damit eine Rückwärtsfahrt der Vibrationsplatte eingestellt werden, wenn die Elektromotoren so eingestellt werden, dass die resultierenden Kraftvektoren der jeweiligen Unwuchtmassen eine Rückwärtsfahrt bewirken. Ferner kann beispielsweise auch eine Standrüttlung eingestellt werden, oder eine Variation der Vortriebsgeschwindigkeit.Furthermore, the electronic controller can be designed to control and / or regulate the direction of rotation and / or the rotational speed of at least two electric motors and to set them independently of one another. When using two electric motors, independent control of the two motors can result in advantageous movement properties of the vibration plate. For example, reverse travel of the vibration plate can thus be set if the electric motors are set in such a way that the resulting force vectors of the respective unbalanced masses cause reverse travel. Furthermore, for example, static vibration can also be set, or a variation of the advance speed.

Als besonders vorteilhaft hat sich erwiesen, wenn die elektronische Steuerung an der Untermasse angeordnet ist. Mit dieser Anordnung sind die elektrischen Verbindungen zwischen der Steuerung und dem/den Elektromotor(en) sehr kurz. Dies verbessert die Ansprechzeit der Elektromotoren bzw. des Motors. Da sich die Motoren in der Regel während des Betriebs sehr schnell drehen und insbesondere bürstenlose Elektromotoren sehr schnelle Steuer- bzw. Regelbefehle benötigen, bringt die räumlich enge Anordnung der einzelnen Bauteile Vorteile mit sich.It has proven to be particularly advantageous if the electronic control is arranged on the lower mass. With this arrangement, the electrical connections between the controller and the electric motor (s) are very short. This improves the response time of the electric motors or the motor. Since the motors, as a rule, rotate very quickly during operation and in particular Brushless electric motors require very fast control or regulation commands, the spatially close arrangement of the individual components has advantages.

Erfindungsgemäß ist das Energiespeicherelement an der Obermasse schwingungsentkoppelt angeordnet. Die Untermasse ist mit der Obermasse zwar gefedert verbunden. Dennoch ist die Obermasse und damit auch das Energiespeicherelement Vibrationen ausgesetzt. Die Lebensdauer des Energiespeicherelements kann verlängert werden, wenn die Vibrationen bestmöglich davon abgehalten werden. Eine Schwingungsentkopplung kann beispielsweise durch die Anordnung von Gummipuffern zwischen der Energiespeichereinheit und der Obermasse erreicht werden.According to the invention, the energy storage element is arranged decoupled from vibrations on the upper mass. The lower mass is connected to the upper mass in a sprung manner. Nevertheless, the upper mass and thus also the energy storage element are exposed to vibrations. The service life of the energy storage element can be extended if the vibrations are kept from it as best as possible. Vibration decoupling can be achieved, for example, by arranging rubber buffers between the energy storage unit and the upper mass.

Diese und weitere Vorteile und Merkmale der Erfindung werden nachfolgend anhand von Beispielen unter Zuhilfenahme der begleitenden Figuren näher erläutert. Es zeigen:

  • Fig. 1 eine schematische Seitenansicht einer Variante einer erfindungsgemäßen Vibrationsplatte;
  • Fig. 2 eine schematische Draufsicht auf eine Schwingungserregereinrichtung;
  • Fig. 3 eine schematische Draufsicht auf eine Untermasse mit einer Schwingungserregereinrichtung;
  • Fig. 4 eine schematische Draufsicht auf eine Untermasse mit zwei Schwingungserregern;
  • Figuren 5 bis 9 schematische Draufsichten auf eine Untermasse mit mehreren Schwingungserregern;
  • Fig. 10 eine schematische Seitenansicht einer Variante einer erfindungsgemäßen Vibrationsplatte
These and further advantages and features of the invention are explained in more detail below on the basis of examples with the aid of the accompanying figures. Show it:
  • Fig. 1 a schematic side view of a variant of a vibration plate according to the invention;
  • Fig. 2 a schematic plan view of a vibration exciter device;
  • Fig. 3 a schematic plan view of a lower mass with a vibration exciter device;
  • Fig. 4 a schematic plan view of a lower mass with two vibration exciters;
  • Figures 5 to 9 schematic top views of a lower mass with several vibration exciters;
  • Fig. 10 a schematic side view of a variant of a vibration plate according to the invention

Fig. 1 zeigt in stark schematisierter Seitenansicht eine Variante der erfindungsgemäßen Vibrationsplatte (1) mit einer Obermasse (2) und einer Untermasse (5). Die Obermasse (2) umfasst einen Tragrahmen (11) welcher mit einer Trägerplatte (12) verbunden ist. Ferner umfasst die Obermasse im gezeigten Ausführungsbeispiel mindestens ein Energiespeicherelement (3) und eine elektronische Steuerung (10), welche am Tragrahmen (11) angeordnet sind. Ferner umfasst die Obermasse (2) eine Bewässerungsvorrichtung (14) und einen Führungsbügel oder Deichsel (13) mittels welcher ein Bediener die Vibrationsplatte steuern kann. Fig. 1 shows a highly schematic side view of a variant of the vibration plate (1) according to the invention with an upper mass (2) and a lower mass (5). The upper mass (2) comprises a support frame (11) which is connected to a support plate (12). Furthermore, in the exemplary embodiment shown, the upper mass comprises at least one energy storage element (3) and an electronic controller (10), which are arranged on the support frame (11). Furthermore, the upper mass (2) comprises an irrigation device (14) and a guide bracket or drawbar (13) by means of which an operator can control the vibration plate.

An der Deichsel (13) ist mindestens ein Bedienelement angeordnet, mittels welchem ein Bediener die Funktion der Vibrationsplatte steuern und/oder regeln kann, d.h. insbesondere die Vibrationsplatte ein- und ausschalten kann.At least one control element is arranged on the drawbar (13), by means of which an operator can control and / or regulate the function of the vibration plate, i.e. in particular can switch the vibration plate on and off.

Die Deichsel (13) ist vibrationsentkoppelt an der Obermasse (2) angeordnet, so dass schädliche Vibrationen nur verringert an die Deichsel und damit auf einen Bediener übertragen werden.The drawbar (13) is arranged on the upper mass (2) in a vibration-decoupled manner, so that harmful vibrations are only transmitted to the drawbar and thus to an operator in a reduced manner.

Die Bewässerungsvorrichtung (14) umfasst einen Behälter zur Aufnahme von Wasser, welches im Betrieb der Vibrationsplatte aus einem kontrolliert verschließbaren und zu öffnenden Auslauf auf den zu verdichtenden Boden abgegeben werden kann. Dies ist insbesondere bei der Verdichtung von Teer vorteilhaft, um ein Haften der Vibrationsplatte auf dem Teer zu vermeiden.The irrigation device (14) comprises a container for holding water which, when the vibration plate is in operation, can be dispensed from a controlled, closable and openable outlet onto the soil to be compacted. This is particularly advantageous when compacting tar, in order to prevent the vibration plate from sticking to the tar.

Die Obermasse ist mittels Dämpfungselementen (15) mit der Untermasse (5) verbunden. Die Untermasse (5) umfasst eine Bodenkontaktplatte (4), auf welcher sich die Vibrationsplatte (1) über den zu verdichtenden Boden bewegt und auf diesen einwirkt. Ferner umfasst die Untermasse (5) eine Schwingungserregereinrichtung (6) welche mechanische Schwingungen erzeugt und auf die Bodenkontaktplatte (4) überträgt, mit welcher sie verbunden ist.The upper mass is connected to the lower mass (5) by means of damping elements (15). The lower mass (5) comprises a soil contact plate (4) on which the vibration plate (1) moves over the soil to be compacted and acts on it. Furthermore, the lower mass (5) comprises a vibration exciter device (6) which generates mechanical vibrations and transmits them to the ground contact plate (4) to which it is connected.

Im gezeigten Ausführungsbeispiel der Figur 1 ist das Energiespeicherelement (3) schwingungsgedämpft an der Obermasse (2) angeordnet. Hierzu ist das Energiespeicherelement (3) an einem Halter (16) angeordnet, welcher schwingungsgedämpft mit der Obermasse (2) verbunden ist. Dies kann durch eine Befestigung mittels Gummipuffern oder mittels eines Drehgelenks erreicht werden. Alternativ kann das Energiespeicherelement (3) auch mittels Schwingungsdämpfern wie z.B. Gummipuffern mit der Obermasse in Kontakt stehen. In einer Variante kann auch die elektronische Steuerung (10) schwingungsgedämpft an der Obermasse (2) angeordnet sein, beispielsweise indem diese ebenfalls am Halter (16) angeordnet ist.In the illustrated embodiment of the Figure 1 the energy storage element (3) is arranged on the upper mass (2) in a vibration-damped manner. For this purpose, the energy storage element (3) is arranged on a holder (16) which is connected to the upper mass (2) in a vibration-damped manner. This can be achieved by fastening with rubber buffers or by means of a swivel joint. Alternatively, the energy storage element (3) can also be in contact with the upper mass by means of vibration dampers such as rubber buffers. In a variant, the electronic control (10) can also be arranged on the upper mass (2) in a vibration-damped manner, for example by also being arranged on the holder (16).

Die elektronische Steuerung (10) dient dazu, die Schwingungserregereinrichtung (6) zu steuern und/oder zu regeln. Die elektronische Steuerung (10) ist dazu ausgelegt, den Elektromotor (7) der Schwingungserregereinrichtung (6) zu beeinflussen und einzustellen, d.h. insbesondere dessen Drehzahl und Drehrichtung einzustellen und zu variieren. Sofern eine erfindungsgemäße Ausführungsform eine Schwingungserregereinrichtung (6) mit mehreren Elektromotoren vorsieht, ist die elektronische Steuerung (10) dazu ausgelegt, die jeweiligen Elektromotoren (7) unabhängig voneinander einzustellen und zu beeinflussen. In einer Variante ist es auch möglich einen oder mehrere Elektromotoren (7) in Abhängigkeit vom Zustand eines oder mehrerer anderer Elektromotoren (7) anzusteuern. So kann beispielsweise die Drehzahl und/oder Drehrichtung eines ersten Elektromotors (7) als Referenz für einen weiteren Elektromotor (7) dienen, an Hand dessen dann der weitere Elektromotor (7) eingestellt wird.The electronic control (10) is used to control and / or regulate the vibration exciter device (6). The electronic control (10) is designed to influence and adjust the electric motor (7) of the vibration exciter device (6), i.e. in particular to adjust and vary its speed and direction of rotation. If an embodiment according to the invention provides a vibration exciter device (6) with several electric motors, the electronic control (10) is designed to set and influence the respective electric motors (7) independently of one another. In a variant, it is also possible to control one or more electric motors (7) as a function of the state of one or more other electric motors (7). For example, the speed and / or direction of rotation of a first electric motor (7) can serve as a reference for a further electric motor (7), on the basis of which the further electric motor (7) is then set.

Ein Elektromotor (7) bildet zusammen der zugeordneten bzw. den zugeordneten Unwuchmassen (8) einen sogenannten Erreger oder Unwuchterreger.An electric motor (7) together with the assigned unbalanced masses (8) forms a so-called exciter or unbalanced exciter.

Figur 2 zeigt eine beispielhafte Schwingungserregereinrichtung (6). Die Schwingungserregereinrichtung (6) umfasst einen Elektromotor (7) mittels welchem mindestens eine Figure 2 shows an exemplary vibration exciter device (6). The vibration exciter device (6) comprises an electric motor (7) by means of which at least one

Unwuchtmasse (8) in Rotation versetzt werden kann. Hierzu ist die Unwuchtmasse (8) bevorzugt mit der Motorwelle (9) des Elektromotors (7) verbunden. Bevorzugt ist der Elektromotor (7) zwischen zwei Unwuchtmassen (8) angeordnet, so dass dieser zentral und axial zwischen den Unwuchtmassen (8) positioniert ist. Die Motorwelle (9) des Elektromotors (7) kann zu beiden Seiten des Elektromotors aus dem Motorgehäuse herausgeführt sein. An den beiden Enden der Motorwelle können die Unwuchtmassen (8) befestigt sein. Alternativ kann die Motorwelle (9) auch derart ausgestaltet sein, dass die Unwuchtmassen (8) integraler Bestandteil der Motorwelle (9) sind.Unbalance mass (8) can be set in rotation. For this purpose, the unbalanced mass (8) is preferably connected to the motor shaft (9) of the electric motor (7). The electric motor (7) is preferably arranged between two unbalanced masses (8) so that it is positioned centrally and axially between the unbalanced masses (8). The motor shaft (9) of the electric motor (7) can be led out of the motor housing on both sides of the electric motor. The unbalanced masses (8) can be attached to the two ends of the motor shaft. Alternatively, the motor shaft (9) can also be designed in such a way that the unbalanced masses (8) are an integral part of the motor shaft (9).

Ferner ist es erfindungsgemäß möglich, die Motorwelle (9) des Elektromotors (7) nur aus einer Seite des Motorgehäuses herausgeführt ist und lediglich eine Unwuchtmasse (8) daran befestigt ist.It is also possible according to the invention for the motor shaft (9) of the electric motor (7) to be led out of only one side of the motor housing and for only one unbalanced mass (8) to be attached to it.

Mit dieser Variante ergibt sich die Möglichkeit, dass zwei Elektromotoren axial zueinander ausgerichtet sind, wobei die Motorwellen (9) der Elektromotoren (7) an den gegenüberliegenden, jeweils den Motoren abgewandten Seiten aus den Motorgehäusen herausgeführt sind, wobei an jeder Motorwelle jeweils eine Unwuchtmasse (8) angeordnet ist. Die Elektromotoren können auf diese Weise unabhängig voneinander angesteuert werden und mittels unterschiedlicher Drehrichtung und/oder Drehzahl unterschiedliche Fliehkräfte auf die Untermasse aufbringen, was verschiedene Fahrmanöver ermöglicht.This variant makes it possible for two electric motors to be axially aligned with one another, the motor shafts (9) of the electric motors (7) being led out of the motor housings on the opposite sides facing away from the motors, with an unbalanced mass ( 8) is arranged. In this way, the electric motors can be controlled independently of one another and, by means of different directions of rotation and / or speed, apply different centrifugal forces to the lower mass, which enables different driving maneuvers.

Die Schwingungserregereinrichtung (6) ist antriebsmäßig mechanisch autark von der Obermasse (2), d.h. der Schwingungserregereinrichtung wird lediglich elektrische Energie zugeführt. Der Elektromotor (7) erzeugt aus der elektrischen Energie die mechanische Kraft um die Unwuchtmasse(n) (8) anzutreiben. D.h. der Schwingungserregereinrichtung wird lediglich elektrische Energie zugeführt, und sie ist nicht mit der Obermasse mittels eines Riementriebs oder einem hydraulischen System verbunden.The vibration exciter device (6) is mechanically self-sufficient in terms of drive from the upper mass (2), i.e. the vibration exciter device is only supplied with electrical energy. The electric motor (7) generates the mechanical force from the electrical energy to drive the unbalanced mass (s) (8). This means that the vibration exciter device is only supplied with electrical energy and it is not connected to the upper mass by means of a belt drive or a hydraulic system.

Zur Zuführung der elektrischen Energie ist der Elektromotor (7) mit einem elektrischen Kabel, welches in den Figuren nicht gezeigt ist, mit der Obermasse verbunden.To supply the electrical energy, the electric motor (7) is connected to the upper mass with an electrical cable, which is not shown in the figures.

Figur 3 zeigt eine stark schematisierte Draufsicht auf eine Bodenkontaktplatte (4) mit einer Schwingungserregereinrichtung (6). Die Schwingungserregereinrichtung (6) ist auf der Bodenkontaktplatte (4) angeordnet und mit dieser fest verbunden. Die Schwingungserregereinrichtung (6) ist in Längsrichtung zentral, d.h. mittig der Bodenkontaktplatte (4) angeordnet, wobei die Motorwelle quer zur Längsrichtung der Vibrationsplatte verläuft.. Die Längsrichtung bestimmt sich dabei durch die Bewegungsrichtung der Vibrationsplatte im Betrieb. Figure 3 shows a highly schematic plan view of a ground contact plate (4) with a vibration exciter device (6). The vibration exciter device (6) is arranged on the ground contact plate (4) and is firmly connected to it. The vibration exciter device (6) is arranged centrally in the longitudinal direction, ie in the middle of the ground contact plate (4), the motor shaft running transversely to the longitudinal direction of the vibration plate.

Ferner ist die Schwingungserregereinrichtung (6) in einer vorderen Hälfte der Bodenkontaktplatte (4) angeordnet. Diese Positionierung verleiht der Vibrationsplatte (1) die beste Bewegungseigenschaft. Besonders bevorzugt ist die Schwingungserregereinrichtung (6) in einem vorderen Drittel der Bodenkontaktplatte (4) angeordnet. Die Vibrationsplatte (1) kann sich bei Nutzung einerFurthermore, the vibration exciter device (6) is arranged in a front half of the ground contact plate (4). This positioning gives the vibrating plate (1) the best movement properties. The vibration exciter device (6) is particularly preferably arranged in a front third of the ground contact plate (4). The vibration plate (1) can move when using a

Schwingungserregereinrichtung (6) lediglich in eine Richtung bewegen. Die Rotation der Unwuchtmassen (8) bewirkt eine Beschleunigung der Vibrationsplatte (1) nach vorne und oben. Die Bodenkontaktplatte (4) verliert deshalb im Bereich der Schwingungserregereinrichtung (6) kurzzeitig den Bodenkontakt und beschleunigt die Vibrationsplatte (1) nach vorne. Die Vibrationsplatte (1) wird deshalb sozusagen mittels der Schwingungserregereinrichtung (6) über den Boden geschleppt, weshalb man bei Vibrationsplatten dieser Bauart von Schleppschwingern spricht. Derartige Schleppschwinger ermöglichen jedoch lediglich eine Vorwärtsfahrt der Vibrationsplatte (1). Als Vorwärtsrichtung bzw. vorderes Ende der Vibrationsplatte ist die Richtung gemeint, die gegenüber dem Ende der Vibrationsplatte (1) mit dem Führungsbügel (13) liegt. Anders ausgedrückt, bewegt sich die Vibrationsplatte (1) in Vorwärtsrichtung vom Bediener weg. Diese Definition gilt für alle Ausführungsbeispiele dieser Anmeldung.Only move the vibration exciter device (6) in one direction. The rotation of the unbalanced masses (8) causes the vibration plate (1) to accelerate forward and upward. The ground contact plate (4) therefore briefly loses contact with the ground in the area of the vibration exciter device (6) and accelerates the vibration plate (1) forwards. The vibration plate (1) is therefore, so to speak, dragged over the floor by means of the vibration exciter device (6), which is why vibration plates of this type are referred to as dragging devices. However, such drag vibrators only allow the vibration plate (1) to travel forwards. The forward direction or front end of the vibrating plate means the direction opposite the end of the vibrating plate (1) with the guide bracket (13). In other words, the vibrating plate (1) moves in the forward direction away from the operator. This definition applies to all exemplary embodiments of this application.

Figur 4 zeigt eine Variante der Vibrationsplatte (1) mit zwei Elektromotoren (7) bzw. Unwuchterregern. Dabei ist ein erster Elektromotor (7) in einer ersten Hälfte der Bodenkontaktplatte (4) angeordnet und ein zweiter Elektromotor (7) in einer zweiten Hälfte der Bodenkontaktplatte (4). Die Nutzung von zwei Elektromotoren (7) führt zu einer verbesserten Verdichtungsleistung und einem gleichmäßigeren Bewegungsverhalten der Vibrationsplatte (1). Dabei sind die Motorwellen (9) der beiden Elektromotoren (7) parallel zueinander ausgerichtet und verlaufen quer zur Längsachse der Vibrationsplatte. Figure 4 shows a variant of the vibration plate (1) with two electric motors (7) or unbalance exciters. A first electric motor (7) is arranged in a first half of the soil contact plate (4) and a second electric motor (7) in a second half of the soil contact plate (4). The use of two electric motors (7) leads to an improved compaction performance and a more uniform movement behavior of the vibrating plate (1). The motor shafts (9) of the two electric motors (7) are aligned parallel to one another and run transversely to the longitudinal axis of the vibration plate.

Eine Vibrationsplatte (1) dieser Bauart kann nicht nur lediglich vorwärts sondern auch rückwärtsfahren und im Stand rütteln. Die technischen Grundprinzipien hierzu sind aus dem Stand der Technik bekannt, weshalb hierauf nicht näher eingegangen werden soll.A vibrating plate (1) of this type can not only move forwards but also backwards and shake while standing. The basic technical principles for this are known from the prior art, which is why they will not be discussed in more detail.

Durch die jeweilige Einstellung und Ausrichtung der jeweiligen Unwuchtmassen und damit der resultierenden Fliehkräfte der beiden Elektromotoren (7) kann entweder eine Vorwärtsfahrt, eine Rückwärtsfahrt oder eine Standrüttlung eingestellt werden. Darüber hinaus kann auch die Bewegungsgeschwindigkeit zwischen einer maximalen Vorwärtsgeschwindigkeit und einer maximalen Rückwärtsgeschwindigkeit stufenlos angepasst werden. Dies wird mittels der elektronischen Steuerung erreicht, welche die Elektromotoren (7) unabhängig voneinander ansteuern und einstellen kann.Through the respective setting and alignment of the respective unbalanced masses and thus the resulting centrifugal forces of the two electric motors (7), either forward travel, reverse travel or static vibration can be set. In addition, the speed of movement can be continuously adjusted between a maximum forward speed and a maximum reverse speed. This is achieved by means of the electronic control, which can control and set the electric motors (7) independently of one another.

Bei Rückwärtsfahrt bewegt sich die Vibrationsplatte (1) in Richtung auf den Bediener zu, d.h. in Richtung des Endes der Vibrationsplatte an welchem der Führungsbügel (13) angeordnet ist.When reversing, the vibration plate (1) moves towards the operator, i.e. in the direction of the end of the vibration plate on which the guide bracket (13) is arranged.

Eine weitere Variante ist in Figur 5 gezeigt, wobei zusätzlich zu den beiden Elektromotoren (7) wie in Figur 4 gezeigt noch mindestens eine weiterer Elektromotor (7) auf der Bodenkontaktplatte (4) angeordnet ist. Dabei sind zwei Elektromotoren (7) mit Motorwellen (9) quer zur Längsachse der Vibrationsplatte (1) angeordnet und mindestens ein weiterer Elektromotor (7) mit der Motorwelle längs, d.h. parallel zur Längsachse angeordnet. Im gezeigten Ausführungsbeispiel sind zwei Elektromotoren (7) mit den Motorwellen parallel zur Längsachse ausgerichtet.Another variant is in Figure 5 shown, in addition to the two electric motors (7) as in Figure 4 at least one further electric motor (7) is also arranged on the ground contact plate (4). Two electric motors (7) with motor shafts (9) are arranged transversely to the longitudinal axis of the vibration plate (1) and at least one further electric motor (7) with the motor shaft longitudinally, ie arranged parallel to the longitudinal axis. In the exemplary embodiment shown, two electric motors (7) are aligned with the motor shafts parallel to the longitudinal axis.

Mittels dieser Anordnung ist es möglich, die Vibrationsplatte (1) richtungssteuerbar auszugestalten. Sofern im Folgenden von der Richtungssteuerung gesprochen wird, ist eine Drehung der Vibrationsplatte (1) um die Hochachse gemeint. Die Vibrationsplatte (1) kann in diesem Fall nicht nur vorwärts und rückwärts, sondern beispielsweise auch nach links und rechts gesteuert werden. Hierzu werden die Drehrichtungen und Drehzahlen der längs zur Längsachse ausgerichteten Elektromotoren (7) dem jeweiligen Fahrtwunsch des Bedieners eingestellt, so dass entsprechende Fliehkräfte erzeugt werden, die die Vibrationsplatte (1) in die gewünschte Richtung bewegen. Auch hier ist die elektronische Steuerung entsprechend ausgestaltet um die jeweilige Zahl an Elektromotoren (7) einzeln und unabhängig voneinander anzusteuern.By means of this arrangement it is possible to design the vibrating plate (1) so that it is directionally controllable. If direction control is used in the following, rotation of the vibration plate (1) around the vertical axis is meant. In this case, the vibration plate (1) can be controlled not only forwards and backwards, but also to the left and right, for example. For this purpose, the directions of rotation and speeds of the electric motors (7) aligned along the longitudinal axis are adjusted to the operator's desire to drive, so that corresponding centrifugal forces are generated that move the vibration plate (1) in the desired direction. Here, too, the electronic control is designed accordingly to control the respective number of electric motors (7) individually and independently of one another.

Eine weitere Möglichkeit zur Richtungssteuerung einer Vibrationsplatte (1) ergibt sich durch die Bauweise der Variante wie sie in Figur 6 gezeigt ist. Hier sind drei Elektromotoren (7) auf der Bodenkontaktplatte (4) angeordnet. Dabei sind zwei Elektromotoren (7) axial zueinander ausgerichtet. Wird in einem der axial ausgerichteten Elektromotoren (7) eine höhere Fliehkraft, d.h. Drehzahl eingestellt als in der anderen axial ausgerichteten Elektromotoren (7) bewegt sich die Vibrationsplatte in dessen Richtung. Sofern beide axial ausgerichteten Elektromotoren (7) in gleiche Drehrichtung und mit gleicher Drehzahl laufen ergibt sich eine Vorwärtsfahrt.Another possibility for controlling the direction of a vibration plate (1) results from the design of the variant as shown in Figure 6 is shown. Here three electric motors (7) are arranged on the ground contact plate (4). Two electric motors (7) are axially aligned with one another. If a higher centrifugal force, ie speed, is set in one of the axially aligned electric motors (7) than in the other axially aligned electric motor (7), the vibration plate moves in its direction. If both axially aligned electric motors (7) run in the same direction of rotation and at the same speed, forward travel results.

Eine weitere Möglichkeit zur Richtungssteuerung einer Vibrationsplatte (1) ergibt sich durch die Bauweise der Variante wie sie in Figur 7 gezeigt ist. Hier sind drei Elektromotoren (7) auf der Bodenkontaktplatte (4) angeordnet. Dabei sind zwei Elektromotoren (7) in einem Winkel zueinander angeordnet. D.h. die durch die Motorwellen (9) gebildeten Motorachsen (17) der Elektromotoren (7) schneiden sich. Durch die voneinander abweichende Einstellung der Drehzahlen oder auch der Drehrichtung kann eine Kurvenfahrt, d.h. Drehung um die Hochachse der Vibrationsplatte eingestellt werden.Another possibility for controlling the direction of a vibration plate (1) results from the design of the variant as shown in Figure 7 is shown. Here three electric motors (7) are arranged on the ground contact plate (4). Two electric motors (7) are arranged at an angle to one another. That is, the motor axes (17) of the electric motors (7) formed by the motor shafts (9) intersect. By setting the speeds or the direction of rotation differently from one another, cornering, ie rotation about the vertical axis of the vibration plate, can be set.

Ferner ist auch eine Richtungssteuerung mit der Bauweise nach Figur 8 möglich. Dabei werden im gezeigten Ausführungsbeispiel vier Elektromotoren (7) auf der Bodenkontaktplatte (4) angeordnet. Dabei sind jeweils zwei Elektromotoren (7) axial zueinander ausgerichtet. Gestaffelt vor bzw. dahinter sind nochmals zwei Elektromotoren (7) axial zueinander ausgerichtet. Bei Ansteuerung einer oder beider Elektromotoren (7) zu einer Seite der Längsachse der Vibrationsplatte ergibt sich eine Lenkbewegung bzw. Drehung um die Hochachse. Die Drehbewegung kann verstärkt werden, indem die die beiden Elektromotoren (7) zur anderen Seite der Längsachse in die entgegen gesetzte Richtung drehen.Furthermore, a directional control is also available with the construction according to Figure 8 possible. In the embodiment shown, four electric motors (7) are arranged on the ground contact plate (4). Two electric motors (7) are each axially aligned with one another. Two more electric motors (7) are staggered in front of or behind them and are axially aligned with one another. When one or both electric motors (7) are activated on one side of the longitudinal axis of the vibration plate, a steering movement or rotation about the vertical axis results. The rotary movement can be increased by turning the two electric motors (7) to the other side of the longitudinal axis in the opposite direction.

Alternativ zur Bauweise nach Figur 8 ist auch eine Anordnung der Elektromotoren (7) wie in Figur 9 gezeigt möglich. Die Elektromotoren (7) sind dabei derart winklig zueinander angeordnet, dass sich die Motorachse (17) eines Elektromotors (7) mit den Motorachsen (17) zweier anderer Elektromotoren (7) schneidet. Die Elektromotoren sind also alle in einem Winkel zur Längsachse der Vibrationsplatte (1) angeordnet, d.h. derart angeordnet, dass sich die Motorachsen (17) aller Elektromotoren mit der Längsachse der Vibrationsplatte (1) schneiden. Bevorzugt liegt der Schnittpunkt der Motorachsen (17) zweier Elektromotoren (7) auf der Längsachse der Vibrationsplatte (1).Alternatively to the construction according to Figure 8 is also an arrangement of the electric motors (7) as in Figure 9 shown possible. The electric motors (7) are arranged at an angle to one another in such a way that the motor axis (17) of one electric motor (7) intersects with the motor axes (17) of two other electric motors (7). The electric motors are therefore all arranged at an angle to the longitudinal axis of the vibration plate (1), ie arranged in such a way that the motor axes (17) of all electric motors intersect with the longitudinal axis of the vibration plate (1). The point of intersection of the motor axes (17) of two electric motors (7) preferably lies on the longitudinal axis of the vibration plate (1).

Die Anordnung kann so gewählt werden, dass mindestens zwei der Elektromotoren (7) spiegelbildlich zur Längsachse angeordnet sind. Bevorzugt sind vier Elektromotoren (7) spiegelbildlich zur Längsachse angeordnet.The arrangement can be chosen so that at least two of the electric motors (7) are arranged in a mirror image to the longitudinal axis. Four electric motors (7) are preferably arranged in mirror image to the longitudinal axis.

Eine solche Anordnung bietet Vorteile hinsichtlich des Geradeauslaufs der Vibrationsplatte und verbessert zudem die Lenkbarkeit, d.h. die Drehung um die Hochachse.Such an arrangement offers advantages with regard to the straight running of the vibration plate and also improves the steerability, i.e. the rotation around the vertical axis.

Eine weitere Variante zum Aufbau einer erfindungsgemäßen Vibrationsplatte ist in Figur 10 gezeigt. Darin ist das Energiespeicherelement (3) aus einer Vielzahl einzelner Akkumulatoren gebildet, die auf der Obermasse (2) angeordnet und miteinander verschaltet sind. Zur Steuerung des bzw. der Motoren ist eine elektronische Steuerung (10) vorgesehen. Im gezeigten Ausführungsbeispiel ist die elektronische Steuerung (10) auf der Obermasse (2) angeordnet. Es ist jedoch generell, d.h. unabhängig vom gezeigten Ausführungsbeispiel, möglich die elektronische Steuerung (10) auch auf der Untermasse (5) anzuordnen.Another variant for the construction of a vibration plate according to the invention is shown in Figure 10 shown. The energy storage element (3) is formed therein from a multiplicity of individual accumulators which are arranged on the upper mass (2) and interconnected with one another. An electronic controller (10) is provided to control the motor or motors. In the exemplary embodiment shown, the electronic control (10) is arranged on the upper mass (2). However, it is generally possible, ie independently of the exemplary embodiment shown, to also arrange the electronic control (10) on the lower mass (5).

Im gezeigten Ausführungsbeispiel ist die Schwingungserregereinrichtung (6) mit lediglich einem Elektromotor (7) aufgebaut, der zwei Unwuchtmassen (8) antreibt.In the exemplary embodiment shown, the vibration exciter device (6) is constructed with just one electric motor (7) which drives two unbalanced masses (8).

Generell ist es möglich, d.h. unabhängig von den vorgestellten Ausführungsformen, das Energiespeicherelement aus einzelnen Akkuzellen zu bilden. Die Akkuzellen können einzeln austauschbar sein.In general, it is possible, i.e. regardless of the embodiments presented, to form the energy storage element from individual battery cells. The battery cells can be replaced individually.

Ferner besteht die Möglichkeit auf der Vibrationsplatte (1) eine elektronisches Lademodul für die Ladung des Energiespeicherelements (3) vorzusehen. Damit wird die Ladung des Energiespeichers direkt auf der Vibrationsplatte (1) ermöglicht. Es ist damit nicht notwendig den Energiespeicher zu entnehmen und zum Lademodul zu transportieren. Das Lademodul kann mit der elektronischen Steuerung baulich integriert sein.It is also possible to provide an electronic charging module on the vibrating plate (1) for charging the energy storage element (3). This enables the energy storage device to be charged directly on the vibration plate (1). It is therefore not necessary to remove the energy storage device and transport it to the charging module. The charging module can be structurally integrated with the electronic control.

Die angesprochenen Merkmale der Erfindung sind nicht auf die in den Figuren gezeigten Kombinationen an Merkmalen eingeschränkt, sondern können beliebig miteinander kombiniert werden.The mentioned features of the invention are not restricted to the combinations of features shown in the figures, but can be combined with one another as desired.

Claims (9)

  1. Vibration plate (1) for compacting the ground, comprising
    an upper mass (2), on which at least one energy storage element (3) is arranged,
    a lower mass (5) which is elastically coupled to the upper mass (2) and has at least one ground contact plate (4), and comprising
    an oscillation excitation device (6) which acts on the ground contact plate (4),
    wherein
    the oscillation excitation device (6) is arranged on the lower mass (5) and has at least one electric motor (7) which rotationally drives at least one rotatably mounted unbalance mass (8) and which can be driven by means of the electrical energy of the at least one energy storage element (3);
    characterised in that
    the energy storage element (3) is arranged on the upper mass (2) in an oscillation-decoupled manner.
  2. Vibration plate (1) as claimed in claim 1, wherein
    a shaft (9) of the electric motor (7) extends transversely to a longitudinal axis of the vibration plate.
  3. Vibration plate (1) as claimed in claim 1 or 2, wherein
    the oscillation excitation device (6) has an electric motor (7) with two unbalance masses (8), wherein the electric motor (7) is arranged axially between the two unbalance masses (8).
  4. Vibration plate (1) as claimed in any one of the preceding claims, wherein
    the at least one electric motor (7) is a brushless electric motor (7), in particular a BLDC motor, an SR motor or an asynchronous motor.
  5. Vibration plate (1) as claimed in any one of the preceding claims, wherein
    the oscillation excitation device (6) has at least two electric motors (7) having respectively associated unbalance masses (8), wherein the electric motors (7), together with the associated unbalance masses (8), are arranged spatially separate from one another on the lower mass (8).
  6. Vibration plate (1) as claimed in claim 5, wherein
    the at least two electric motors (7) are arranged in a staggered manner along a longitudinal axis of the vibration plate.
  7. Vibration plate (1) as claimed in any one of the preceding claims, wherein
    the vibration plate has an electronic controller (10) which controls and/or regulates the direction of rotation and/or rotational speed of the at least one electric motor (7).
  8. Vibration plate (1) as claimed in claim 7, wherein
    the electronic controller (10) is designed to control and/or to regulate the direction of rotation and rotational speed of at least two electric motors (7) and adjust same independently of one another.
  9. Vibration plate (1) as claimed in any one of claims 7 or 8, wherein
    the electronic controller (10) is arranged on the lower mass (5).
EP18190928.4A 2017-09-13 2018-08-27 Soil compacting device Active EP3456879B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017121177.2A DE102017121177A1 (en) 2017-09-13 2017-09-13 Soil compacting device

Publications (2)

Publication Number Publication Date
EP3456879A1 EP3456879A1 (en) 2019-03-20
EP3456879B1 true EP3456879B1 (en) 2021-05-19

Family

ID=63407100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18190928.4A Active EP3456879B1 (en) 2017-09-13 2018-08-27 Soil compacting device

Country Status (5)

Country Link
US (1) US10344439B2 (en)
EP (1) EP3456879B1 (en)
CN (1) CN109487779B (en)
DE (1) DE102017121177A1 (en)
ES (1) ES2883654T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4269696A1 (en) 2022-04-29 2023-11-01 Ammann Schweiz AG Soil compaction device
DE202022002915U1 (en) 2022-04-29 2024-01-15 Ammann Schweiz Ag Soil compaction device

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020202573A1 (en) * 2019-04-05 2020-10-08 本田技研工業株式会社 Compaction device
DE102019110041A1 (en) * 2019-04-16 2020-10-22 Wacker Neuson Produktion GmbH & Co. KG Hand-operated implement with decoupled drawbar carrier
US20210172142A1 (en) * 2019-12-09 2021-06-10 Husqvarna Ab Compaction machine with electric working assembly
DE102020102949A1 (en) * 2020-02-05 2021-08-05 Wacker Neuson Produktion GmbH & Co. KG Vibrating plate with electric drive
CN111705598A (en) * 2020-06-14 2020-09-25 陈子寅 Road surface evener for highway engineering
JP7228910B2 (en) * 2020-08-19 2023-02-27 三笠産業株式会社 vibration compactor
GB2604347A (en) * 2021-03-01 2022-09-07 Black & Decker Inc A compacting power tool
DE102022110564B4 (en) * 2022-04-29 2024-02-29 Ammann Schweiz Ag Cooling of a soil compaction device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339422A (en) * 1965-03-18 1967-09-05 Petrin Frank Electric motor driven vibrator and adjusting device therefor
US3889263A (en) * 1973-11-15 1975-06-10 Megapulse Inc Radio-frequency pulse generation system and method
DE19731731A1 (en) * 1997-07-23 1999-02-25 Wacker Werke Kg Soil compaction device with variable vibration properties
DE29804993U1 (en) * 1998-03-19 1998-06-18 Metz Bernhard Vibrating device to consolidate the ground
DE19812986C1 (en) * 1998-03-24 1999-11-11 Masa Ag Unbalance shaker for stone molding machines
SE513571C2 (en) * 1999-03-18 2000-10-02 Ulf Bertil Andersson Apparatus for generating mechanical vibrations
US6582155B1 (en) * 1999-07-27 2003-06-24 Wacker Construction Equipment Ag Soil packing device with a vibration isolating mounting for a starter battery
DE19953553A1 (en) * 1999-11-08 2000-06-21 Joachim Mozdzanowski Ground compactor with variable amplitude has two fixed inertial masses coupled to a central adjustable inertial mass via a double epicyclic drive
DE60139985D1 (en) 2001-06-14 2009-11-05 Swepac Internat Ab Compressor with vibration plate
DE102007018353A1 (en) * 2007-04-18 2008-10-30 Wacker Construction Equipment Ag Vibration generator for soil compacting devices
DE102011104269A1 (en) * 2011-06-15 2012-12-20 Wacker Neuson Produktion GmbH & Co. KG Guide bar with energy storage
US8484857B2 (en) * 2011-07-26 2013-07-16 General Electric Company Component for axially aligning two shafts through intermediary materials
US9038491B2 (en) * 2013-05-06 2015-05-26 Martin Engineering Company Method of repositioning bearing wear in an industrial eccentric weight vibrator via power inversion and vibrator therefore

Non-Patent Citations (1)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4269696A1 (en) 2022-04-29 2023-11-01 Ammann Schweiz AG Soil compaction device
DE102022110562A1 (en) 2022-04-29 2023-11-02 Ammann Schweiz Ag Soil compaction device
DE202022002915U1 (en) 2022-04-29 2024-01-15 Ammann Schweiz Ag Soil compaction device
DE102022110562B4 (en) 2022-04-29 2024-02-15 Ammann Schweiz Ag Soil compaction device

Also Published As

Publication number Publication date
CN109487779B (en) 2022-01-07
US10344439B2 (en) 2019-07-09
DE102017121177A1 (en) 2019-03-28
ES2883654T3 (en) 2021-12-09
CN109487779A (en) 2019-03-19
EP3456879A1 (en) 2019-03-20
US20190078282A1 (en) 2019-03-14

Similar Documents

Publication Publication Date Title
EP3456879B1 (en) Soil compacting device
EP1893819B1 (en) Vibrating plate with individually adjustable vibration generators
EP0756656B1 (en) Roadworking machine
EP1727940B1 (en) Tamping device
DE112016000636T5 (en) Vibration device for vibration compressor
EP3725949B1 (en) Hand-guided implement with decoupled drawbar support
DE102005029433A1 (en) Vibrating plate for compacting soil has one unbalanced mass not requiring phase adjusting device but all other unbalanced masses with such device
EP2881516A1 (en) Road roller
DE102020111311B4 (en) Interchangeable unit for texturing soil surface treatment and road construction machine with such an interchangeable unit
DE1955772A1 (en) Shaking or vibration device with a number of oscillating drives
EP3862487B1 (en) Vibration plate with electric drive
EP0865327A1 (en) Adjusting device for an unbalance vibrator with adjustable centrifugal moment
DE102006041784A1 (en) vibration exciter
EP1534439B1 (en) Vibration exciter for soil compacting devices
EP3901372A1 (en) Ground compacting device with electrically operated wheel set
DE4000011C5 (en) Device for vibration excitation
EP3705683B1 (en) Horizontal drilling system
DE102008006748B4 (en) Unbalanced vibration exciter for a vibrating plate
EP3876692B1 (en) Agricultural device for soil cultivation
EP3184695A1 (en) Soil compaction bar and construction machine for soil compaction
WO2024079035A1 (en) Construction machine for conveying thick material
EP0637120A1 (en) Device for the conversion of an energy stored in a magnetic field in kinetic energy
DE2054148C3 (en) Vibrating roller, in particular for use in a trench
DE4021278A1 (en) Vibration drive with adjustable power e.g. for pile-driver - has two pairs of opposingly rotating masses with adjustable phase coupling
EP2050873A2 (en) Vibration roller

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20190918

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200213

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20201211

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502018005297

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1394069

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210615

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210819

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210920

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210919

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210820

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2883654

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20211209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502018005297

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210831

26N No opposition filed

Effective date: 20220222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210919

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210827

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210827

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20180827

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230831

Year of fee payment: 6

Ref country code: GB

Payment date: 20230824

Year of fee payment: 6

Ref country code: ES

Payment date: 20230918

Year of fee payment: 6

Ref country code: CH

Payment date: 20230902

Year of fee payment: 6

Ref country code: BG

Payment date: 20230818

Year of fee payment: 6

Ref country code: AT

Payment date: 20230818

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20230823

Year of fee payment: 6

Ref country code: FR

Payment date: 20230821

Year of fee payment: 6

Ref country code: DE

Payment date: 20230822

Year of fee payment: 6