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EP2884005B1 - Compacteur à entraînement direct - Google Patents

Compacteur à entraînement direct Download PDF

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Publication number
EP2884005B1
EP2884005B1 EP14003744.1A EP14003744A EP2884005B1 EP 2884005 B1 EP2884005 B1 EP 2884005B1 EP 14003744 A EP14003744 A EP 14003744A EP 2884005 B1 EP2884005 B1 EP 2884005B1
Authority
EP
European Patent Office
Prior art keywords
ground
electric motor
drive
motor
frequency
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
EP14003744.1A
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German (de)
English (en)
Other versions
EP2884005A1 (fr
Inventor
Michael Steffen
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 EP2884005A1 publication Critical patent/EP2884005A1/fr
Application granted granted Critical
Publication of EP2884005B1 publication Critical patent/EP2884005B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • E01C19/35—Hand-held or hand-guided tools
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18208—Crank, pitman, and slide

Definitions

  • the invention relates to a soil compacting device and a method for operating a soil compacting device.
  • the invention can be used for tools for soil compaction, such as rammers or vibratory plates.
  • Soil compacting machines are typically powered by combustion and / or electric motors. While internal combustion engines allow a largely independent operation of the soil compaction device by storing the fuel (fuel) in a tank on the machine, the use of electric motors, a burden on the environment and an operator operating the soil compaction machine can be avoided.
  • the supply of the electric motor is generally via an external connection to the public power grid or, for example, in smaller soil compaction machines, by an electric accumulator.
  • the rotational frequency of the electric motors necessary for generating the motor power is much higher than the operating frequency of the compressor, i. So the tamping or vibration frequency. Consequently, reduction gears are provided between the drive motor and the ramming or vibration system, which reduce the rotational frequency of the drive movement generated by the electric motor and increase the drive torque.
  • Such reduction gears include complex assemblies that require a suitable space, have a high weight and lead to high costs in the production. In working mode, they are exposed to heavy loads, have high wear and thus lead to a limited reliability of the overall system.
  • rammers are adapted to the conditions of non-compacted standard floors in such a way that the best possible compaction effect of the machine is achieved, even if the properties of the floors coincide with the floors considered in the dimensioning of the ramming system. When compacting different types of soils, the ramming effect can therefore be lower.
  • a rammer for soil compaction is known in which a working movement of the ground contact element is generated by an electric motor via a crank mechanism.
  • a motor shaft is rotated, which is connected via a coupling with the crank mechanism.
  • the invention has for its object to provide a soil compaction device that allows reliable operation while maintaining high efficiency of the overall system and low production costs. Furthermore, the invention has for its object to provide a method for operating such a soil compaction device.
  • a soil compacting device has an upper mass and a lower mass coupled to the upper mass by a spring device with a ground contact element. Furthermore, a drive for generating a working movement of the ground contact element is provided.
  • the drive has an electric motor, and a drive frequency of a drive motion generated by the electric motor is equal to a frequency of the working movement of the ground contact element.
  • the equality of the drive frequency of the electric motor and the frequency of the working movement are achieved in the soil compacting device by a synchronization of the electric motor with the frequency of the working movement.
  • the drive movement is thus transmitted to the ground contact element without changing the frequency.
  • the rotational frequency of the electric motor for example the rotational frequency of a drive element or a drive shaft of the electric motor
  • a frequency of the working movement of the ground contact element for example, a ground contact plate
  • a rotation of the drive element of the electric motor exactly corresponds to a working or ramming cycle or the stamping frequency of the ground contact plate.
  • the synchronization of the electric motor with the working frequency makes it possible to generate the working movement directly by the electric motor.
  • the drive movement of the drive element can be transmitted directly and without converting their frequency to the ground contact element. Consequently, it is not necessary, for example, to provide transmission devices or other transmission elements for converting, for example reducing, the drive frequency. This is referred to below as a direct drive.
  • the synchronization of the electric motor with the working frequency thus allows a direct connection of the electric motor with the ramming system on the lower mass, or with a connecting rod of the ramming system.
  • the position of the ramming system (ram) and the rotation angle of the drive shaft of the electric motor or the rotor shaft to each other are always exactly defined by the lack of coupling, so that with the knowledge of one can always be closed on the other and vice versa.
  • the direct drive makes it possible to provide a soil compaction device which is substantially smaller and lighter than, for example, a conventional rammer or a conventional vibration plate with gear device.
  • a lower weight of the upper mass can be achieved, resulting in a lower center of gravity and thus better leadership properties. Due to the lower mechanical complexity of the overall system lower production costs are achieved.
  • the direct drive and in particular the direct connection of the electric motor with the ramming system allows an effective, accurate and low-noise transmission of the drive movement to the ground contact element.
  • a low-noise and low-maintenance operation with high efficiency of the overall system is possible in which little wear occurs.
  • the electric motor has a DC motor, AC motor or AC motor with a high number of pole pairs.
  • the DC, rotary or AC motor can be at least two, three, four, five, have eight or ten pairs of poles each consisting of a north and a south pole.
  • the DC, rotary or AC motor may have at least 8 poles or a pole pair number of at least 8 pole pairs.
  • an electric motor with a low, for example, the operating frequency of the soil compacting device adapted speed.
  • the torque of the electric motor increases, essentially in proportion to the number of pole pairs.
  • a high drive torque is simultaneously achieved, which is suitable for driving the ground contact element in the working movement. Consequently, a high pole-pair rotating or alternating current motor is suitable for enabling direct drive of the soil compaction device.
  • the electric motor has a torque motor.
  • a torque motor is a high-torque magnetic motor or switched reluctance motor or a slow-speed electric motor such. an electric asynchronous motor with a high number of pole pairs.
  • torque motors have high torques at low speeds. This can be used in the manner described above for the direct drive of the soil compacting device.
  • Torque motors can be designed as brushless DC motors and can be designed as external rotor with internal stator and external rotor and as internal rotor with internal rotor and external stator. Their large drive torque can cause high accelerations and leads to a high dynamics of the working behavior of the soil compacting device.
  • the high starting torque already present at the start makes it possible to start the soil compacting device solely by the torque motor.
  • the high drive stiffness of the torque motors allows essentially no play, which is why torque motors have good control properties, which make it possible to accurately implement the work requirements of the soil compacting device.
  • the torque motor may be preceded by an electronic frequency converter, which provides a supply current with a suitable frequency for operating the torque motor.
  • the overall system of the soil compacting device can be designed inexpensively, since additional costs, for example, for gearboxes and other transmission elements can be omitted.
  • the electric motor has an asynchronous motor with a high number of pole pairs and / or a squirrel cage drive motor with a high number of pole pairs.
  • the asynchronous motor or the squirrel-cage drive motor 2, 3, 4, 5, 8, 10 or more pole pairs have.
  • the asynchronous motor or the squirrel cage drive motor may have at least 8 poles or a pole pair number of at least 8 pole pairs.
  • asynchronous motors or squirrel-cage drive motors enables a cost-effective design of the soil compacting device.
  • the provision of a high number of pole pairs makes it possible to provide a high-torque drive with a low speed, which allows a direct drive of the ground contact element of the soil compacting device.
  • the asynchronous motor or squirrel-cage drive motor can be designed, for example, such that when operated at the mains frequency, for example of the public power grid, a direct drive of the ground contact element with a suitable stamping frequency is possible.
  • a frequency converter for converting the mains frequency may be provided to allow operation of the soil compacting device with a suitable working movement of the ground contact element, for example when feeding the electric motor from the public power grid or from a battery with DC-AC conversion.
  • the electric motor may comprise or be configured as a sensor-commutated brushless magnet motor with an electronic control device.
  • a sensor-commutated, brushless magnetic motor with electronic control has sensors for determining the position of a rotor of the electric motor relative to the stator field.
  • the stator coils can be energized depending on the current rotor position and according to a movement request.
  • Hall sensors for detecting the magnetic flux of the rotor or optical sensors in the region of the stator can be used as sensors, for example.
  • the signals of the sensors via an incremental encoder, for example, with zero setting at a given rotor position, output.
  • the control device can determine the position of the rotor and thus, in the case of a direct-acting drive, also the position of the ground contact element, i. of the padfoot, relative to the soil compactor and thus determine relative to the ground. Based on this position information, the electronic control device can suitably control or energize the windings, which generate a torque in the rotor, via suitable power drivers. This control can be made depending on a movement request of the rammer and / or depending on the position of the rotor or position of the padfoot. This is referred to below as sensor-controlled commutation.
  • the sensor-controlled commutation a needs-based control of the working frequency of the soil compaction device can be achieved and a working movement of the soil contact element can be directly influenced.
  • the sensor-controlled commutation works even at very low speeds or in the state. Usually, not all phases are energized at the same time, especially in three or more phases, so that at any time at least one phase can be de-energized.
  • a drive movement of the electric motor can be transmitted to the ground contact plate via a crank drive.
  • a connecting rod of the crank mechanism can be eccentrically coupled to a rotor device of the electric motor.
  • the coupling can be achieved for example by means of a crank pin, which is arranged eccentrically on the rotor device of the electric motor.
  • the electric motor may have a rotatably arranged stator device and a rotor device rotatable relative to the stator device, wherein the rotor device is rotatable or rotatable with respect to the stator device by the action of the supplied rotary or alternating current.
  • the connecting rod of the crank mechanism may be coupled to the rotor device, for example by means of the eccentrically arranged on the rotor device crank pin. This can form a robust connection between the rotor device and the connecting rod.
  • the connecting rod Due to the direct connection of the connecting rod with the rotor device, a direct transmission of the drive torque of the electric motor to the connecting rod and via the connecting rod to the ground contact element is achieved without requiring gear devices or further transmission elements. As a result, the drive movement can be effectively and smoothly transmitted to the ground contact element. Furthermore, the connecting rod can be suitably guided through the rotor in an operation of the soil compacting device. As a result, interference from the working operation of the soil compacting device, for example reflections of the soil contact element of working soil, can be absorbed and contained.
  • the electric motor and the crank drive can be structurally integrated.
  • the rotor device of the electric motor may have an eccentric, for example an eccentric disk, to which the connecting rod is fastened, for example, by means of the crank pin.
  • an electrical energy store and / or a connection device can be provided for connection to a current source.
  • the electric motor can be supplied with electrical energy from the electrical energy store and / or from the current source.
  • the power source may be provided, for example, by a public power grid and / or a generator.
  • a power source arranged externally, for example, outside the soil compacting device makes it possible to operate the soil compaction device with low emissions and low noise and thus gentle on the operator and the environment after connection to the power source.
  • the use of an internal electrical energy store which is thus arranged on the ground device and which can be loadable by connection to an external electrical current source furthermore makes it possible to operate the ground compacting device independently of the cable independently of access to the current source.
  • a frequency converter for generating a rotary or alternating current for the electric motor may be provided at a predetermined or selectable by the operator frequency.
  • the frequency converter can be structurally integrated with the electric motor, which allows a simple construction of the soil compacting device with a small installation space. It is also possible to provide the frequency converter separate from the electric motor, or to provide an external frequency converter for providing a supply current with the frequency required by the electric motor. For example, the frequency of the feed stream may be controllable with respect to work demands on the soil compacting device.
  • the drive can have a further motor, and the further motor can be operated alternatively or in addition to the electric motor.
  • the further engine may be another electric motor or an internal combustion engine.
  • the electric motor and the further motor can alternatively or simultaneously drive the working movement of the ground contact element, for example by alternative or simultaneous action on the connecting rod.
  • a cranked shaft with a plurality of crankpins may be provided for driving by a plurality of motors.
  • an internal combustion engine in addition to the electric motor enables a hybrid drive of the soil compacting device, for example, depending on whether an electrical energy store is charged, an external power source available and / or if a tank container of the internal combustion engine is refueled. This achieves the greatest possible independence from the availability of the energy sources and thus a high availability of the soil compacting device in different application scenarios.
  • the soil compaction device has an upper mass, a lower mass coupled to the upper mass by a spring device with a ground contact element and a drive for generating a drive movement of the ground contact element.
  • the drive has an electric motor, and a drive frequency of a drive motion generated by the electric motor is equal to a frequency of the working movement of the ground contact element.
  • the soil compacting device may correspond to any of the embodiments and variants discussed above.
  • the method comprises injecting a rotary or alternating current into the electric motor and transmitting the drive movement of the Electric motor in a working movement of the ground contact element with the same frequency.
  • the method thus enables the operation of a ground compaction device with a direct drive, in which a rotational frequency of a drive element of the electric motor corresponds to a frequency of the working movement of the ground contact plate.
  • the electric motor may be driven to produce at least one further driving movement of a drive shaft of the electric motor.
  • the further drive movement may be configured to generate at least one further impact of the ground contact plate (e.g., the soil to be compacted), the further drive motion having a higher drive frequency than a drive frequency of the drive shaft at the moment of impact.
  • the higher drive frequency of the further drive movement can be significantly and significantly higher than the drive frequency at the moment of the power surge.
  • the higher drive frequency may be at least 30% higher than the drive frequency at the moment of the power surge.
  • This embodiment enables the setting of a multiple impact of the soil compacting device as well as a lookup.
  • further power surges can be generated immediately after the impulse, which the padfoot exerts on the ground.
  • This is achieved by suitable moderation of the drive after placing the padfoot on the ground, in particular by a suitable electromagnetic excitation of the drive motor. Since the drive movement of the drive motor with the same frequency or rigidly transmitted to the padfoot, an exact control of the multiple impact or Nahbans is possible.
  • the drive motor can be controlled such that a series of rapidly successive rotational pulses of the drive shaft / rotor shaft is generated at a very high drive frequency and transmitted to the padfoot.
  • the further drive movement can be at least one partial movement having a direction of rotation of the drive shaft opposite to a direction of rotation of the drive shaft at the moment of impact.
  • the soil to be compacted is repeatedly compressed by the padfoot / soil contact element and with rapidly successive shock pulses, which leads to additional compaction of the soil.
  • the fact that there is no or only a minimal reflection of the force pulse due to the already made contact of the padfoot to the ground, a very effective compaction of the soil can be achieved.
  • the figure shows schematically in a lateral sectional view serving as a soil compacting rammer 1, in which a housing 2, an electric motor 3 is provided.
  • the electric motor 3 has a stator 4 and a rotor 5 rotatable relative to the stator 4 and is fed from an electrical energy store 6 arranged on the rammer 1.
  • an eccentric disk 7 Structurally integrated with the rotor 5 is an eccentric disk 7, on which eccentrically a crank pin 8 is arranged.
  • a connecting rod 9 Connected to the crank pin 8 is a connecting rod 9 for converting the rotary drive movement of the rotor 5 in a translational and oscillatory up and down movement, and for transmitting the up and down movement on a coupled to the connecting rod 9 via spring packs 10 and 11 padfoot 12, on which a ground contact plate 13 is arranged as the ground contact element.
  • the alternating or three-phase current is supplied as a supply current to the stator 4 of the electric motor 3.
  • alternating magnetic fields in the region of the rotor 5 are generated and the rotor 5 is set in a known manner in a rotational movement, the drive movement of the electric motor.
  • a rotational frequency of the rotor 5 or drive frequency of the drive movement is caused directly by a frequency of the stator 4 supplied alternating or three-phase current.
  • the drive or rotational movement of the rotor 5, which is structurally integrated with the crank mechanism formed by the eccentric disc 7, the crank pin 8 and the connecting rod 9, is concurrently, ie with the same frequency in a working movement of the padfoot 12 and the ground contact plate 13 arranged thereon implemented.
  • a direct drive of the ground contact plate 13 is achieved by the electric motor 3 with synchronous frequency.
  • the direct drive makes it possible to design the tamper 1 without further transmission devices or without further frequency-converting transmission elements. As a result, a lower complexity of the overall system is achieved, which leads to low production costs, low maintenance costs, a high overall efficiency and a high reliability of the stampers 1.
  • the construction is low in noise and wear and also has a low center of gravity compared to conventionally driven rammers and thus improved leadership.
  • the electric motor 3 may have, for example, a rotary or alternating current motor with a high number of pole pairs, a torque motor, an asynchronous motor with a high pole pair number and / or a squirrel cage drive motor with a high number of pole pairs.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Soil Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Agronomy & Crop Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Soil Working Implements (AREA)
  • Road Paving Machines (AREA)

Claims (12)

  1. Dispositif de compactage du sol (1) avec
    - une masse supérieure (2, 3, 4, 5, 6, 7, 8, 9) et une masse inférieure (12, 13) avec un élément de contact du sol (13) qui est couplée à la masse supérieure (2, 3, 4, 5, 6, 7, 8, 9) par un dispositif de ressort (10, 11), et
    - un entraînement (3, 4, 5) pour la production d'un mouvement de travail de l'élément de contact du sol (13),
    - l'entraînement présentant un moteur électrique (3, 4, 5),
    - une fréquence d'entraînement d'un mouvement d'entraînement produit par le moteur électrique (3, 4, 5) étant égale à une fréquence du mouvement de travail de l'élément de contact du sol (13),
    - le mouvement d'entraînement du moteur électrique (3, 4, 5) pouvant être transmis à l'élément de contact du sol (13) par le biais d'une transmission à manivelle (7, 8, 9), et
    - une bielle (9) de la transmission à manivelle étant accouplée directement de façon excentrée à un dispositif de rotor (5) du moteur électrique (3, 4, 5).
  2. Dispositif de compactage du sol (1) selon la revendication 1,
    - le moteur électrique (3, 4, 5) présentant un moteur à courant continu, un moteur à courant triphasé ou un moteur à courant alternatif avec un nombre élevé de paires de pôles.
  3. Dispositif de compactage du sol (1) selon l'une des revendications précédentes,
    - le moteur électrique (3, 4, 5) présentant un moteur couple.
  4. Dispositif de compactage du sol (1) selon l'une des revendications précédentes,
    - le moteur électrique (3, 4, 5) présentant un moteur asynchrone avec un nombre élevé de paires de pôles et/ou un moteur d'entraînement à cage d'écureuil avec un nombre élevé de paires de pôles.
  5. Dispositif de compactage du sol (1) selon l'une des revendications précédentes,
    - le moteur électrique (3, 4, 5) présentant un moteur à aimants permanents sans balais commuté par capteur, avec un dispositif de commande électronique.
  6. Dispositif de compactage du sol (1) selon l'une des revendications précédentes,
    le moteur électrique (3, 4, 5) et la transmission à manivelle (7, 8, 9) étant intégrés au plan de la construction.
  7. Dispositif de compactage du sol (1) selon l'une des revendications précédentes,
    - un accumulateur d'énergie électrique et/ou un dispositif de connexion étant prévu(s) pour la connexion à une source de courant, et
    - le moteur électrique (3, 4, 5) pouvant être alimenté en énergie électrique à partir de l'accumulateur d'énergie électrique et/ou à partir de la source de courant.
  8. Dispositif de compactage du sol (1) selon l'une des revendications précédentes, avec
    - un convertisseur de fréquence pour la production d'un courant triphasé ou alternatif pour le moteur électrique (3, 4, 5) avec une fréquence prédéfinie.
  9. Dispositif de compactage du sol (1) selon l'une des revendications précédentes,
    - l'entraînement présentant un autre moteur, et l'autre moteur pouvant être mis en fonctionnement à la place du moteur électrique (3, 4, 5) ou en plus de celui-ci, et
    - l'autre moteur étant un autre moteur électrique ou un moteur à combustion.
  10. Procédé de fonctionnement d'un dispositif de compactage du sol (1) selon l'une des revendications 1 à 9, le dispositif de compactage du sol présentant une masse supérieure (2, 3, 4, 5, 6, 7, 8, 9), une masse inférieure (12, 13) avec un élément de contact du sol (13) qui est couplée à la masse supérieure (2, 3, 4, 5, 6, 7, 8, 9) par un dispositif de ressort (10, 11), et un entraînement (3, 4, 5) pour la production d'un mouvement de travail de l'élément de contact du sol (13), l'entraînement présentant un moteur électrique (3, 4, 5), et une fréquence d'entraînement d'un mouvement d'entraînement produit par le moteur électrique (3, 4, 5) étant égale à une fréquence du mouvement de travail de l'élément de contact du sol (13), avec
    - injection d'un courant triphasé ou alternatif dans le moteur électrique (3, 4, 5) ;
    - transfert du mouvement d'entraînement du moteur électrique (3, 4, 5) en un mouvement de travail de l'élément de contact du sol (13) de même fréquence.
  11. Procédé de fonctionnement d'un dispositif de compactage du sol (1) selon la revendication 10, avec,
    - après une impulsion de la plaque de contact de sol, pilotage du moteur électrique pour la production d'au moins un autre mouvement d'entraînement d'un arbre d'entraînement du moteur électrique, l'autre mouvement d'entraînement étant conçu pour produire une autre impulsion de la plaque de contact de sol, et l'autre mouvement d'entraînement présentant une fréquence d'entraînement plus élevée que la fréquence d'entraînement de l'arbre d'entraînement au moment de l'impulsion.
  12. Procédé de fonctionnement d'un dispositif de compactage du sol (1) selon la revendication 10 ou 11,
    - l'autre mouvement d'entraînement présentant au moins un mouvement partiel avec un sens de rotation de l'arbre d'entraînement qui est opposé à un sens de rotation de l'arbre d'entraînement au moment de l'impulsion.
EP14003744.1A 2013-12-12 2014-11-06 Compacteur à entraînement direct Active EP2884005B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013020857.2A DE102013020857A1 (de) 2013-12-12 2013-12-12 Bodenverdichter mit Direktantrieb

Publications (2)

Publication Number Publication Date
EP2884005A1 EP2884005A1 (fr) 2015-06-17
EP2884005B1 true EP2884005B1 (fr) 2016-10-26

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EP14003744.1A Active EP2884005B1 (fr) 2013-12-12 2014-11-06 Compacteur à entraînement direct

Country Status (4)

Country Link
US (1) US9175447B2 (fr)
EP (1) EP2884005B1 (fr)
CN (1) CN104711920B (fr)
DE (1) DE102013020857A1 (fr)

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* Cited by examiner, † Cited by third party
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SE538758C2 (sv) 2015-02-06 2016-11-08 Dynapac Compaction Equipment Ab Vibrationsanordning för kompakteringsmaskin
JP6839110B2 (ja) * 2018-01-29 2021-03-03 酒井重工業株式会社 締固め機
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CN104711920B (zh) 2019-04-09
US20150167259A1 (en) 2015-06-18
US9175447B2 (en) 2015-11-03
EP2884005A1 (fr) 2015-06-17
CN104711920A (zh) 2015-06-17

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