EP3594408A1 - Dispositif de compactage de sol - Google Patents

Dispositif de compactage de sol Download PDF

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Publication number
EP3594408A1
EP3594408A1 EP19194168.1A EP19194168A EP3594408A1 EP 3594408 A1 EP3594408 A1 EP 3594408A1 EP 19194168 A EP19194168 A EP 19194168A EP 3594408 A1 EP3594408 A1 EP 3594408A1
Authority
EP
European Patent Office
Prior art keywords
energy store
guide device
tool
mass
guide
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.)
Granted
Application number
EP19194168.1A
Other languages
German (de)
English (en)
Other versions
EP3594408B1 (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 EP3594408A1 publication Critical patent/EP3594408A1/fr
Application granted granted Critical
Publication of EP3594408B1 publication Critical patent/EP3594408B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • 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

Definitions

  • the invention relates to an implement for soil compaction according to claim 1, for example a vibration plate or a tamper.
  • Working equipment for soil compaction is typically driven by internal combustion engines in the construction site area in order to be able to provide high performance of the working device independently of a power source of a power supply network or of a generator.
  • This creates noise and exhaust fumes that affect the health of construction site personnel and can damage the environment.
  • the exhaust gas emissions can quickly reach the pollutant concentration that is critical for an operator.
  • a disadvantage of the use of an internal combustion engine is also the need to refuel the device with fuel and auxiliary materials such as lubricants and coolants and the necessary maintenance of the internal combustion engine.
  • the invention has for its object to provide a work tool for soil compaction that is largely emission-free and independent of external Power sources with easy handling by the operator.
  • An implement for soil compaction has an upper mass and a guide device coupled to the upper mass for guiding the implement. Furthermore, the implement has a lower mass which is movable relative to the upper mass and which is coupled to the upper mass via a spring device and has a base contact plate. Furthermore, a vibration excitation device is provided for generating a relative movement between the upper mass and the lower mass. A drive with an electric motor is provided for driving the vibration excitation device. The electric motor can be supplied with electrical energy by an electrical energy store arranged on the guide device.
  • the work equipment for soil compaction can be a vibration plate or a soil compactor such as a rammer.
  • the guide device enables an operator to guide the implement over the soil to be compacted, for example soil.
  • it can have a guide drawbar, a guide frame or a guide bracket for pulling or pushing the implement over the ground to be compacted or for holding and controlling the implement.
  • a guide handle or handle for an operator can be provided on the guide device, on which control elements for operating, for example activating and interrupting the implement, can also be arranged.
  • the lower mass can be coupled to the upper mass in a resiliently movable manner, for example, by a spring device serving as a vibration decoupling device.
  • the upper and lower mass can be caused to vibrate relative to one another by the vibration excitation device.
  • the vibration excitation device can be arranged on the lower mass, in the case of a tamper on the upper mass or between the upper and lower mass.
  • the vibration excitation device can have at least one unbalanced shaft with a vibration plate have an unbalanced mass arranged thereon.
  • the vibration excitation device has, for example, a crank mechanism.
  • a floor contact plate can be arranged on the lower mass and, for example, be rigidly fastened, which can be set into a pounding and / or vibrating working movement by the vibrations of the lower mass.
  • the ground contact plate can vibrate and compact on the ground to be compacted during operation of the implement.
  • the vibration excitation device for example the unbalanced shaft or the crank drive
  • the drive can be arranged, for example, on the upper mass or the lower mass.
  • the electric motor can be fed solely or exclusively by the electrical energy store.
  • the electric motor can also be supplied with electrical energy either by the energy store or by connection to an external power source, for example with a socket of a power supply network, a building power source or a generator.
  • the electrical energy store can be any energy store for storing and delivering electrical energy. It can have an electrical rechargeable battery, for example with electrochemical cells (accumulator cells). It is possible to use a lithium-ion battery (type Li-ion), but also to use other types of batteries. Furthermore, the energy store can also be composed of several accumulators.
  • the energy store can have a housing which accommodates the accumulators and / or accumulator cells and can have an electrical coupling device for coupling the accumulator cells, for example to the electric motor or a charger.
  • the housing can have control elements such as a charge level and / or operating temperature display.
  • the energy storage device can also be designed without an additional housing, for example in order to require the smallest possible installation space when fitting into the working device.
  • the arrangement of the energy store on the guide device enables the operator to easily access the energy store. This makes it easier, for example the operation of control elements of the energy storage, for example when checking the charge level display or the operating temperature display. Furthermore, the arrangement enables simple connection of the energy store to a charger or simple wiring of the energy store to an external power source, since the guide device and thus also the energy store are easily accessible to the operator. Furthermore, the mass of the guiding device is increased in particular relative to the upper and lower mass by the accumulator arranged on the guiding device, which results in improved smooth running of the implement on the guiding device.
  • the guide device is movable relative to the upper mass and a vibration decoupling device is arranged between the upper mass and the guide device.
  • the vibration decoupling device can be designed as a damping device and have elastic buffers such as rubber buffers and / or a spring device.
  • the vibration decoupling device enables the guiding device to be decoupled from vibrations of the implement, which are caused by the vibrations of the lower mass, are transmitted to the upper mass coupled to the lower mass and act on the guiding device coupled to the upper mass.
  • the mechanical stress caused by the vibration which can damage both the user and the energy store, is significantly reduced by the vibration decoupling device from the guide device.
  • the hand-arm vibrations on the guide handle can be significantly reduced, and the energy storage is protected from mechanical stress. This effect is further enhanced by the mass of the energy store, which increases the relative mass of the guide device compared to the upper or lower mass.
  • the guide device has a hollow body in which the energy store can be arranged.
  • the hollow body can have, for example, a component with a cavity, which can be longitudinal.
  • the hollow body of the guide device can be designed as a tube, in particular as a steel tube, into which the energy store can be inserted or can be inserted.
  • the tube can be arranged as a structural element of the guide device and, for example, form a longitudinal or transverse strut of a guide frame or a pulling or pushing device.
  • the tube can serve as a component of a guide drawbar and enable the operator to apply forces to the implement to guide the implement in operation.
  • the energy store By accommodating the energy store in the hollow body, the energy store can be arranged on the implement without requiring additional, for example, separate installation space.
  • the hollow body can be closed off in such a way that it protects the energy store against contamination in rough construction site operation.
  • a suitable stiffness of the hollow body can protect the energy store from external mechanical influences which occur during construction site operation and which can damage the energy store. Furthermore, the hollow body can also protect the operator, for example, from thermal and / or mechanical effects of a possible explosion of a defective energy store. By enclosing the energy store in the hollow body, the thermal and mechanical effects of such an explosion can be contained or at least mitigated.
  • the hollow body can dissipate the heat of reaction of the energy store during charging and / or discharging to the ambient air.
  • the hollow body can enlarge the surface of the energy store in thermal exchange with the surroundings and act as a heat sink. This can be achieved, for example, in that the hollow body is designed as a steel tube with a large surface area, into which the energy store can be directly admitted and thus brought into direct contact with the tube. The large surface of the steel tube enables the heat of reaction to be effectively removed.
  • the guide device can have a cooling device for cooling the energy store.
  • a thermally conductive contact device can be provided which connects the surface of the accumulator to the surface of the guide device or the hollow body or steel pipe. Cooling fins or other deformations which increase the surface area can be provided on the surface of the guide device in order to enlarge the contact area with the ambient air.
  • ventilation slots can be provided to prevent the escape enable heated air, for example from a battery housing of the guide device.
  • an air conveying device can intensify the ventilation through the ventilation slots.
  • the air conveying device can be operated by a conveying wheel operated by the energy store, for example a blower, or also by a blower element mechanically coupled to the lower or upper mass that vibrates relative to the guide device.
  • the guide device can have a pressure compensation element in an environment of the energy store for discharging a pressure after a pressure rise caused by the energy store.
  • the pressure compensation element can be used to discharge the pressure generated in a targeted manner from the guide device at a safe location remote from the operator.
  • the pressure compensation element can, for example, be arranged on a side of the guide device facing away from the guide handle. As a result, the operator can be kept away and protected from thermal and / or mechanical effects of the explosion.
  • the pressure compensation element can have a predetermined breaking point on the guide device.
  • This predetermined breaking point can be designed in such a way that it withstands the mechanical loads that occur during normal operation of the implement, but breaks when the energy storage device explodes. In this way, the hollow body, into which the energy store is embedded, can break open at the predetermined breaking point in the event of such an explosion.
  • the pressure compensation element can also have a valve for targeted pressure and / or heat discharge away from the operator.
  • the guide device can have a receptacle or holder for the reversible insertion of the energy store.
  • the guide device can have a housing with an opening for inserting and / or removing the energy store.
  • the housing can have an electrical contact device by means of which the energy store can be brought into electrical contact with the working device, in particular the electric motor. Due to the reversible, ie releasable plugging or connecting of the energy store to the guide device, the energy store can be easily exchanged or serviced. For example, an empty energy storage device can be removed and inserted into a suitable charger, while a charged energy storage device is inserted into the working device becomes. This enables the use of an external charger and thus a simple construction of the implement.
  • a further vibration decoupling device can be arranged between the guide device and the energy store.
  • This further vibration decoupling device can have, for example, one or more elastic buffers and / or spring devices which decouple the receptacle or the housing for receiving the energy store from the vibrations present on the guide device.
  • the energy store can be held resiliently in the receptacle or on the guide device. With the additional vibration decoupling, the mostly sensitive and expensive energy store can be additionally protected against mechanical stress.
  • the drive can also have an internal combustion engine in addition to the electric motor.
  • the vibration excitation device can optionally be operated by the internal combustion engine or the electric motor.
  • Such a hybrid drive makes it possible, for example, in poor ventilation, e.g. to operate in the trench area via the electric motor, for example, fed from the energy store, while the vibration excitation device can be driven by the internal combustion engine with good ventilation and / or when the energy store is empty. This enables a permanent use of the implement adapted to the environmental conditions while at the same time being largely independent of power sources, chargers and / or fuel reserves.
  • the energy store can be loadable by means of a generator operated by the internal combustion engine.
  • the electric motor can be operated as an electric motor and / or generator.
  • the energy storage device can also be charged during operation of the implement by the internal combustion engine.
  • the internal combustion engine can be operated in the idle state of the working device and charge the energy store via the generator. Since it is not absolutely necessary for the operator to control the implement during this time, the operator can keep himself away from the implement and is not impaired by the exhaust gas emission. This enables great independence from external power sources and chargers.
  • the structural integration of the generator with the electric motor can save manufacturing costs, installation space and weight.
  • an electronic control device coupled to the energy store, the drive and / or the vibration excitation device can be provided on the guide device.
  • This can be supplied with electrical energy by the energy store. It can control the charging and discharging process of the energy store, the operation of the drive and / or the operation of the vibration exciter, for example in accordance with an operator specification on an operating element of the implement.
  • the arrangement of the control device on the guide device further increases the relative weight of the guide device to the upper and lower mass, which further improves the smooth running of the implement.
  • the hand-arm vibration on the guide device is further reduced.
  • the control device can be coupled directly to the energy store, which reduces the susceptibility of the coupling to errors.
  • the generally sensitive electronics of the control device on the guide device decoupled from the upper mass by the vibration decoupling device are protected from the mechanical vibrations of the working device.
  • Fig. 1 shows schematically in a side sectional view a vibrating plate 1 with an upper mass 2 and a lower mass 3 which is movable relative to the upper mass 2 and coupled to the upper mass 2, for example via rubber buffers 2b serving as a spring device.
  • the upper mass 2 has a drive motor 2a with an electric motor for driving one of the lower mass 3 arranged vibration excitation device 3b.
  • the vibration excitation device 3b can have, for example, at least one unbalanced shaft with an unbalanced mass arranged thereon. Often two counter-rotating unbalanced shafts with respective unbalanced masses are provided, the phase positions of which can be adjusted to one another in a known manner.
  • a guide drawbar 5 is coupled to the upper mass 2 via a damping device 4 serving as a vibration decoupling device, which can have, for example, a rubber buffer and / or a spring device.
  • the guide drawbar 5 has a steel tube 6, on which a guide handle 7 for guiding, for example pulling or pushing, the vibration plate 1 is provided by an operator.
  • An energy store 8 for supplying the drive motor 2a, in particular the electric motor, with electrical energy is provided on the steel tube 6 of the guide drawbar 5.
  • the mass of the guide device 5 is increased overall relative to the upper mass 2 and the lower mass 3. Because of the elastic coupling of the guide drawbar 5 to the upper mass 2 by the damping device 4, the hand-arm vibrations on the guide handle of the operator can be significantly reduced. Furthermore, the vibrations on the energy store 8 arranged on the steel tube 6 are also reduced, so that the energy store 8 is also mechanically protected. This mechanical protection of the energy store can be further improved by arranging an additional vibration decoupling device, not shown, between the steel tube 6 and the energy store 8 arranged thereon.
  • an operating heat of the energy store 8 during charging and / or discharging can also be given off to the steel tube 6 and dissipated to the ambient air by the latter.
  • the steel tube 6 thus acts as a heat sink and can replace other optional cooling devices.
  • the exposed arrangement of the energy store 8 on the guide drawbar 5 of the vibration plate 1 simplifies access by the operator to the energy store 8. For example, the operator can easily see a charge status display or operating temperature display of the energy store 8 or observe it during operation. Furthermore, the energy store 8 can be easily removed or removed and inserted into a charger, and / or replaced by a further, freshly charged energy store.
  • FIG. 2 The schematic sectional view shown of a further vibration plate 1 largely corresponds to that in FIG Fig. 1 . shown Deviatingly, however, instead of the individual energy store 8, two energy stores 8a, 8b are provided, which are embedded in the steel tube 6 in the guide drawbar 5.
  • the energy stores 8a, 8b are surrounded by the steel tube 6 in such a way that the latter is thermally coupled to the energy stores 8a, 8b and the surface of the energy stores 8a, 8b to the ambient air is significantly enlarged.
  • the steel tube 6 can act as a heat sink for cooling the energy stores 8a, 8b.
  • Structural adjustments for example a suitable design of the cavity of the steel tube 6 adapted to the shape of the energy stores 8a, 8b to achieve a suitable thermal coupling between the energy stores 8a, 8b and the steel tube 6, as well as the provision of cooling fins can affect the effect of the steel tube 6 reinforce as a heat sink.
  • the energy stores 8a, 8b in the steel tube 6 are mechanically protected from external influences. For example, dust and dirt cannot reach the energy stores 8a, 8b or their electrical contact surfaces directly, and mechanical effects, for example due to external impacts, are shielded by the energy stores 8a, 8b through the steel tube 6.
  • the insertion of the energy stores 8a, 8b into the steel tube 6 ensures effective operator protection against the thermal and mechanical effects of a possible explosion of a defective energy store. This allows the pressure generated by the explosion to be contained and reduced by the steel pipe.
  • predetermined breaking points for example notches or valves, can be provided on the steel tube, which, for example, remove the pressure from the guide handle 7, e.g. in the surroundings of the damping device 4 and thus at an end of the steel tube 6 facing away from the guide handle.
  • the in the Fig. 1 and 2 Arrangements of the energy store (s) 8, 8a, 8b shown can accordingly also be carried out with a tamper for the floor device.
  • the energy store (s) 8, 8a or 8b can be arranged on or in a guide bracket of the rammer.
  • the hand-arm vibrations can be influenced favorably and the smoothness of the rammer can be increased. The other advantages mentioned above apply accordingly.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Machines (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
EP19194168.1A 2011-06-15 2012-05-14 Dispositif de compactage de sol Active EP3594408B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011104269A DE102011104269A1 (de) 2011-06-15 2011-06-15 Führungsdeichsel mit Energiespeicher
EP12721417.9A EP2721217B1 (fr) 2011-06-15 2012-05-14 Dispositif de compactage de sol
PCT/EP2012/002066 WO2012171604A1 (fr) 2011-06-15 2012-05-14 Appareil de compactage du sol

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP12721417.9A Division EP2721217B1 (fr) 2011-06-15 2012-05-14 Dispositif de compactage de sol

Publications (2)

Publication Number Publication Date
EP3594408A1 true EP3594408A1 (fr) 2020-01-15
EP3594408B1 EP3594408B1 (fr) 2021-06-30

Family

ID=46085884

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19194168.1A Active EP3594408B1 (fr) 2011-06-15 2012-05-14 Dispositif de compactage de sol
EP12721417.9A Active EP2721217B1 (fr) 2011-06-15 2012-05-14 Dispositif de compactage de sol

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12721417.9A Active EP2721217B1 (fr) 2011-06-15 2012-05-14 Dispositif de compactage de sol

Country Status (5)

Country Link
US (1) US9284697B2 (fr)
EP (2) EP3594408B1 (fr)
CN (1) CN204417976U (fr)
DE (1) DE102011104269A1 (fr)
WO (1) WO2012171604A1 (fr)

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DE102011104269A1 (de) 2011-06-15 2012-12-20 Wacker Neuson Produktion GmbH & Co. KG Führungsdeichsel mit Energiespeicher
DE102011105899A1 (de) * 2011-06-28 2013-01-03 Bomag Gmbh Vorrichtung zur Bodenverdichtung, insbesondere handgeführt, mit elektrischem Antrieb und Verfahren zum Betrieb einer solchen Vorrichtung
DE102011115008A1 (de) * 2011-10-06 2013-04-11 Wacker Neuson Produktion GmbH & Co. KG Elektrowerkzeug mit Schutzhaube
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DE102014011179A1 (de) * 2014-07-31 2016-02-04 Wacker Neuson Produktion GmbH & Co. KG Bodenverdichtungsvorrichtung mit Abfederung und Führung
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DE102017121177A1 (de) * 2017-09-13 2019-03-28 Wacker Neuson Produktion GmbH & Co. KG Bodenverdichtungsvorrichtung
CN107858896A (zh) * 2017-11-24 2018-03-30 防城港市蓝瀚达科技有限公司 一种电动平面振压机
DE102019110041A1 (de) * 2019-04-16 2020-10-22 Wacker Neuson Produktion GmbH & Co. KG Handgeführtes Arbeitsgerät mit entkoppeltem Deichselträger
DE112019007865T5 (de) * 2019-12-26 2022-09-01 Honda Motor Co., Ltd. Elektrische antriebseinheit und arbeitsgerät
CN111705598A (zh) * 2020-06-14 2020-09-25 陈子寅 一种公路工程用路面整平机
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DE102011104269A1 (de) 2012-12-20
CN204417976U (zh) 2015-06-24
EP3594408B1 (fr) 2021-06-30
EP2721217B1 (fr) 2019-09-04
WO2012171604A1 (fr) 2012-12-20
US20130251452A1 (en) 2013-09-26
EP2721217A1 (fr) 2014-04-23
US9284697B2 (en) 2016-03-15

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