EP3901372A1 - Dispositif de compactage du sol pourvu d'essieu monté à commande électrique - Google Patents

Dispositif de compactage du sol pourvu d'essieu monté à commande électrique Download PDF

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Publication number
EP3901372A1
EP3901372A1 EP21168878.3A EP21168878A EP3901372A1 EP 3901372 A1 EP3901372 A1 EP 3901372A1 EP 21168878 A EP21168878 A EP 21168878A EP 3901372 A1 EP3901372 A1 EP 3901372A1
Authority
EP
European Patent Office
Prior art keywords
soil compacting
compacting device
chassis
electric drive
soil
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
EP21168878.3A
Other languages
German (de)
English (en)
Other versions
EP3901372B1 (fr
Inventor
Walter Unverdorben
Stefan Pfetsch
Oliver Kolmar
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 EP3901372A1 publication Critical patent/EP3901372A1/fr
Application granted granted Critical
Publication of EP3901372B1 publication Critical patent/EP3901372B1/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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a soil compacting device, in particular a vibrating plate or vibrating plate.
  • Such a soil compacting device has a vibration exciter which is driven by a motor and which generates an essentially vertically directed vibration which acts on a compacting plate (soil contact plate).
  • a vibration exciter which is driven by a motor and which generates an essentially vertically directed vibration which acts on a compacting plate (soil contact plate).
  • it is suitable for moving the compaction plate forwards or backwards over the soil to be compacted and for making the plate steerable.
  • Such a soil compacting device is a vibrating plate, for example from the DE 198 40 453 A1 known. It has an extendable chassis so that shorter distances on a construction site can be covered with the machine without the need for a transport vehicle.
  • the Indian DE 198 40 453 A1 chassis mechanism described is structurally complex, heavy and expensive.
  • the DE 102 26 920 A1 a simpler transport device is known in which a wheel set is attached directly to the compaction plate (soil contact plate). By tilting the vibration plate around the wheel set, the ground contact plate can be lifted off the ground and the entire vibration plate can be transported or rolled away with the help of the wheel set.
  • the invention is therefore based on the object of specifying an improved soil compacting device which can be transported comfortably and without any particular expenditure of force.
  • a soil compacting device is specified, with a lower mass having a compaction plate, an upper mass coupled to the lower mass via a vibration decoupling device, a vibration exciter acting on the compaction plate, a chassis with one or more rolling elements for transporting the device, and with an electric drive for driving at least one the rolling body.
  • the lower mass accordingly has the compaction plate, which serves as a soil contact plate and on which the soil compaction device rests on the ground.
  • the compaction plate is set in vibration by the vibration exciter and causes the soil below to be compacted.
  • the vibration exciter or parts of the vibration exciter can also be added to the undersize.
  • the drive can be arranged on the upper mass, which is vibrationally decoupled from the lower mass. In other embodiments, however, the drive can also be arranged directly on the lower mass.
  • the vibration decoupling device between the lower mass and the upper mass can in particular be a spring-damper device, e.g. with rubber buffers, in order to effectively isolate the vibrations that occur and are generated on the lower mass from the upper mass.
  • One or more rolling bodies are used to roll over the ground in order to carry the entire soil compacting device and to be able to transport it rolling over the ground.
  • the rolling bodies can in particular be designed as wheels, with several wheels, in particular a pair of wheels, forming a wheel set.
  • the electric drive is used to support the transport movement and can, for example, have an electric motor and can drive at least one of the rolling elements to rotate. With the support of the electric drive, it is easily possible for an operator to move the soil compacting device on the ground with the aid of the rolling bodies. The operator then only has to guide the soil compacting device in a suitable manner and, if necessary, balance it, while the actual transport movement is brought about by the electric drive and the rolling elements driven by it.
  • the chassis can be fixedly attached to the lower mass, the chassis at a distance from a contact surface of the Compaction plate is arranged, which is dimensioned such that the soil compacting device can be tilted over the rolling bodies, such that the compacting plate does not touch the ground in a transport position, but the rolling bodies touch the ground and carry the weight of the device.
  • the rolling bodies In a working or vibrating position, however, when the compaction plate rests flat on the floor, the rolling bodies are arranged at a certain distance from the floor. The rolling bodies float, so to speak, above the ground or the contact area.
  • the stationary attachment of the chassis to the lower mass means that the relative position between a chassis axis or axis of rotation of the rolling bodies to the chassis supporting the chassis, in particular to the compression plate, cannot be changed.
  • the rolling bodies can rotate relative to the compression plate.
  • their position relative to the compression plate cannot be changed.
  • the stationary chassis axis with respect to the compression plate means, compared to devices that do not have such a chassis, that the rolling elements are already in their driving position (transport position) during working operation (vibrating operation).
  • a is like for example in the DE 198 40 453 A1
  • the described extension or swiveling of the chassis axis is not required for transport.
  • a part that is particularly susceptible to wear, namely an extension or pivoting mechanism that is otherwise required, is omitted, which results in lower acquisition costs, less downtime, lower maintenance costs and easy operability of the soil compacting device.
  • a support device can be provided with which the chassis is movably attached to the upper mass, the chassis with the help of the support device between a working position in which the soil compacting device is suitable for compacting a soil, and a transport position for transporting the Soil compacting device is movable.
  • the support device thus serves to move, in particular to pivot the chassis relative to the upper mass. In the vibrating or working position, the rolling elements of the chassis are raised from the ground.
  • the chassis can be held on the upper mass with the rolling elements.
  • the chassis is pivoted downwards so that the rolling elements are supported on the ground and the entire soil compacting device can be transported.
  • the chassis can have at least two roller bodies, of which at least one roller body can be driven by the electric drive.
  • Different variants are possible. It is thus possible for only one of the rolling elements to be driven to rotate, while the other rolling element is supported in a freely rotating manner.
  • both rolling bodies can be driven. It is possible that both rolling bodies are driven by a common drive. It is also possible for each of the rolling bodies to have its own individual drive.
  • the two rolling bodies can be connected to one another by a torque coupling in such a way that both rolling bodies are driven jointly by the electric drive.
  • the torque coupling can be established, for example, by a connecting shaft, a gearbox, etc., in order to couple the rotary movement of the two rolling bodies with one another.
  • the common electric drive can accordingly be attached at a suitable point in order to transmit the torque to both rolling elements.
  • a control can be provided for activating the electric drive, the control being able to bring about a standby state in which the electric drive for the chassis can be activated while the vibration exciter cannot be activated.
  • the standby state means that a transport operation is possible in which the electric drive can be activated. In the standby mode, however, no working mode (jogging mode) is possible.
  • the standby mode represents a preliminary stage to the actual transport mode, in which the vibration exciter may no longer be activated.
  • the standby state can be activated by a switching device, wherein the switching device can have different components or functional principles.
  • the switching device can have an inclination detector for recognizing whether the soil compacting device has tilted about the chassis axis.
  • the soil compacting device - as described above - is tilted about the chassis axis (axis of rotation of the wheel set or axis of rotation of the rolling bodies)
  • the rolling bodies touch the ground so that the soil compacting device can be transported.
  • This tilted or inclined state can be detected by the inclination detector, as a result of which the standby state can be activated.
  • the switching device can have a drawbar detector for detecting a position of a guide drawbar in an upright locking state.
  • Many soil compacting devices have a guide bar with the aid of which an operator can guide and move the soil compacting device manually.
  • it is known to pivot the guide shaft upwards and to lock it with the aid of a corresponding locking device, for example to lock it onto the upper mass.
  • this locking state of the guide bar can be recognized, which in turn enables the standby state to be activated.
  • a transport operating device can be provided for activating the electric drive in at least one direction of rotation of the associated roller body and thus the transport direction of the soil compacting device. With the aid of the transport control device, an operator can thus switch the electric drive on and off in order to cause the corresponding roller body (or the plurality of roller bodies) to rotate and to carry out the transport.
  • a rocker switch or rocker switch or a control lever for forward and reverse travel can be suitable as a transport operating device, similar to an electric pallet truck. It can also be provided that the electric drive can only be activated if the standby mode has been activated beforehand.
  • the speed of the electric drive can be constant, i.e. unchangeable.
  • the operation of the electronic drive is limited to e.g. on-off or forward and reverse travel as well as standstill.
  • An electrical energy store can be provided to supply the electric drive with electrical energy.
  • the electrical energy store can in particular be a battery or an accumulator.
  • the energy store can be permanently installed in the soil compacting device. However, it is also possible to provide the electrical energy store in an exchangeable manner.
  • a guide device can be provided for manually guiding the soil compacting device by an operator, the guide device can be attached to the upper mass.
  • the guide device can be, for example, the guide bar described above.
  • a vibration decoupling device can be provided between the guide device and the upper mass. This can have rubber buffers, for example.
  • the electrical energy store can be arranged on the upper mass, on the lower mass or on the guide device.
  • the arrangement on the upper mass and - even more - on the guide device has the advantage that these locations can be decoupled from the lower mass so that the energy storage device is only exposed to slight vibrations.
  • the vibration exciter can be driven by an electrical work drive, the electrical work drive being supplied by electrical energy from the electrical energy store.
  • the soil compacting device has a large electric drive that serves as a work drive and drives the vibration exciter.
  • the electric drive as well as the electric drive for the chassis are fed jointly by the electrical energy store.
  • the vibration exciter can be driven by an internal combustion engine, with a starter battery being provided for a starter of the internal combustion engine and with the starter battery forming the electrical energy store for the electric drive for the vehicle.
  • the actual drive for the vibration exciter is provided by the internal combustion engine.
  • the starter battery equipped as a battery with a smaller capacity, is used to supply the starter and the electric drive for the chassis.
  • the energy store for the electric drive can be charged by the internal combustion engine. Accordingly, the energy store does not have to have a large capacity. During operation, it can be charged by the internal combustion engine, which accordingly has or drives a generator.
  • a charging device can be provided for monitoring a charge status of the energy storage device, at least one of the following functions being able to be ensured: if the residual charge limit falls below a specified limit, the power drive for the vibration exciter is switched off (or prevented from being switched on); and when falling below a predetermined lower Remaining charge limit Switch off (or prevent it from being switched on) the electric drive for the chassis.
  • the charging device thus enables the state of charge of the energy store to be monitored. If the energy store is also used to feed an electric drive for the vibration exciter, this drive can be switched off when the residual charge falls below the specified upper limit, while the travel drive or electric drive for the chassis can still be operated at this point in time. The chassis can then continue to be driven while the vibration exciter is switched off.
  • FIGS. 1 to 4 show essentially the same soil compacting device according to the invention as a vibrating plate, each from different angles and in different operating states. Since the figures refer to the same subject, they are also described together.
  • a drive belonging to an upper mass 4 and hidden under a cover 5 is positioned.
  • a spring damper device 3 e.g. a rubber buffer
  • the drive usually a gasoline or diesel engine, drives a vibration exciter 6, which is coupled to the compaction plate 2 in such a way that the vibrations generated by the vibration exciter 6 are transmitted directly to the compaction plate 2 and thus into the soil to be compacted.
  • the drive can also be an electric drive and have an electric motor.
  • the drive can be arranged both on the upper mass 4 and on the lower mass 1.
  • a suitable power transmission is provided between the electric motor and the vibration exciter 6, for example a belt drive or a hydraulic drive known per se. If, on the other hand, the electric motor is arranged on the lower mass 1, it can drive the vibration exciter 6 directly.
  • An energy store required for the electric motor can be arranged on the upper mass 4, e.g. under the cover 5. As a result, the energy store is also decoupled from the vibrations acting on the lower mass 1.
  • a chassis 7 is arranged on the lower mass 1, which chassis has a chassis axis 8 which is stationary with respect to the soil compacting device and around which one or more roller bodies 9 are rotatably arranged.
  • a chassis axis 8 which is stationary with respect to the soil compacting device and around which one or more roller bodies 9 are rotatably arranged.
  • two rolling bodies 9 designed as wheels are shown, which together form a wheel set.
  • the chassis 7 is attached to the lower mass 1, in particular to the compression plate 2. This reduces the distance between the center of gravity of the overall device and the chassis axis 8, which in turn improves the driving behavior of the device in transport mode. In addition, the tendency of heavy compaction plates to tilt around the chassis axis 8 in the direction of travel during transport is reduced.
  • the two roller bodies 9 can be driven in rotation by an electric motor 15 in order to facilitate transport of the entire vibration plate with the aid of the roller bodies 9, which are then in contact with the ground, in the transport position of the vibration plate.
  • the electric motor 15 rotates the rolling bodies 9, causing them to roll over the ground and thereby carry the rest of the soil compacting device in a rolling manner.
  • the operator can actuate a control not shown in the figures, e.g. a rocker switch or a control lever, in order to switch the electric motor 15 on and off or also to specify a direction of rotation of the electric motor 15.
  • a control not shown in the figures e.g. a rocker switch or a control lever
  • the electric motor 15 can for example - as in Fig. 2 shown - be arranged between the two rolling bodies 9. It is also possible to design the electric motor 15 as a hub motor, which is then arranged in at least one of the rolling bodies 9 or in both rolling bodies 9.
  • the chassis axis 8 can consist of an actual component, but it can also be a fictitious axis of rotation that is formed by supports 8a, 8b attached to the compression plate 2, each of which supports the rolling elements 9 ( Figs. 2 and 4 ).
  • the axis position of the chassis axis 8 is selected in such a way that in a vibrating position ( Fig. 3 ) the compaction plate 2 has surface contact with the ground and the rolling elements 9 do not touch the ground (distance b), but in a transport position ( Fig. 4 ) the compaction plate 2 does not touch the ground (distance a), but the rolling elements 9 touch the ground and bear the weight of the device.
  • a change between the two positions is possible by tilting the entire device about an axis which essentially corresponds to the chassis axis 8.
  • a control lever is provided on the drawbar 10 with which the vibration exciter 6 can be controlled in a manner known per se.
  • the axis position of the chassis axis 8 and the size of the rolling elements 9 in such a way that the distance b ( Fig. 3 ) between a ground contact surface of the compaction plate 2 and the lowest point of the rolling elements 9 in the vibrating position and a distance a ( Fig. 4 ), around which the rolling elements 9 protrude in the transport position in front of the then lowest point of the compression plate 2, can be achieved. If the distance a is sufficiently large, the soil compacting device can be driven without any problems even on uneven ground, while at the same time the distance b must be selected so that it is ensured that the rolling elements 9 do not touch the ground during vibration operation.
  • the chassis axis 8 is arranged above the compression plate 2, whereby a favorable relationship between the line of action of the operator traction on the drawbar 10, the center of gravity of the overall device and the position of the chassis axis 8 is possible, so that very good driving comfort is achieved without tilting in the direction of travel.
  • the soil compacting device is then balanced in equilibrium so that its center of gravity is essentially perpendicular above the chassis axis 8.
  • the rolling bodies 9 are also subjected to a high acceleration, it is advisable to provide the rolling bodies 9 with a targeted imbalance 11 so that they vibrate develop the effort to rotate about the chassis axis 8 by itself. This counteracts selective wear of the rolling element bearings.
  • the use of roller bearings for the rolling bodies 9 is therefore particularly suitable.
  • the embodiment shown here has a step surface 12 for supporting the moment required to change positions on the side of the upper mass 4, so that the operator can for example by loading the step surface 12 with his foot and tilting backwards or forwards the drawbar 10 can reach the driving position or transport position.
  • This type of change from the vibrating to the transport position and vice versa has a significantly lower risk of injury compared to soil compaction devices with pivoting or extendable undercarriages and can be carried out very quickly because the undercarriage does not need to be converted.
  • the step surface 12 can also serve as a protective cover for the electric motor 15 located behind it.
  • the drawbar 10 is in the Figs. 1 to 4 pivoted upwards from the otherwise usual operating position into a locking position. In this position, the drawbar can be locked by a locking device, not shown, in order to achieve a compact unit with the rest of the vibration plate for transport.
  • the second prerequisite for activating the standby mode is that the vibration plate is tilted, as in Fig. 4 shown.
  • the tilting of the vibration plate by pivoting about the rolling elements 9 can be detected, for example, by an inclination sensor.
  • control elements are activated as a transport control device, via which the electric drive can be switched on or off in order to drive the roller bodies 9 in rotation and to move the vibration plate over the floor.
  • Fig. 5 shows a schematic bottom view of a variant of a vibration plate serving as a soil compacting device.
  • roller bodies 9a, 9b designed as wheels are provided, which have a common axis of rotation (chassis axis 8).
  • An electric drive 15 is provided as a hub motor on one of the roller bodies (roller body 9a), by means of which the roller body 9a can be driven in rotation.
  • the other rolling body 9b (in Fig. 5 the lower one is simply mounted so that it can rotate freely and is not driven.
  • steering assistance can optionally be achieved.
  • each of the two rolling bodies 9a and 9b is assigned its own electric drive 15.
  • the two electric drives 15 can be individually be controlled in order to achieve a steerability of the vibration plate in this way. If the two electric drives 15 are operated in opposite directions, the respectively assigned roller bodies 9a, 9b also rotate in opposite directions, so that the vibration plate can be rotated on the spot.
  • Fig. 6 shows a variant in which the electric drive 15 is also installed as a hub motor in the rolling body 9a (in Fig. 6 the upper roller body) is arranged. However, the other roller body 9b is coupled to the electric drive 15 or the roller body 9a via a shaft 16.
  • Both rolling bodies 9a, 9b are thus driven equally at the same speed and the same direction of rotation.
  • the electric drive 15 is not assigned directly to one of the rolling elements 9a, 9b, but is arranged approximately in the middle between the two rolling elements 9a, 9b. Accordingly, the electric drive 15 can have two shaft outputs (shafts 16).
  • the electric drive 15 can also have only one shaft output, which is then guided to only one of the rolling bodies 9a, 9b.
  • Fig. 8 again shows another variant in which the electric drive 15 - similar to that in Fig. 5 - Is assigned only to the roller body 9a, while the roller body 9b rotates freely.
  • the electric drive 15 is not designed as a hub motor, but as a separate motor which drives the associated roller body 9a via a gear-shaft mechanism 17.
  • the electric drive can have a friction wheel that can be pressed onto one of the rolling elements (transport wheel).
EP21168878.3A 2020-04-23 2021-04-16 Dispositif de compactage du sol pourvu d'essieu monté à commande électrique Active EP3901372B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020111123.1A DE102020111123A1 (de) 2020-04-23 2020-04-23 Bodenverdichtungsvorrichtung mit elektrisch betriebenem Radsatz

Publications (2)

Publication Number Publication Date
EP3901372A1 true EP3901372A1 (fr) 2021-10-27
EP3901372B1 EP3901372B1 (fr) 2023-12-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21168878.3A Active EP3901372B1 (fr) 2020-04-23 2021-04-16 Dispositif de compactage du sol pourvu d'essieu monté à commande électrique

Country Status (4)

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EP (1) EP3901372B1 (fr)
DE (1) DE102020111123A1 (fr)
DK (1) DK3901372T3 (fr)
FI (1) FI3901372T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114197438A (zh) * 2021-12-30 2022-03-18 西南石油大学 一种水利边坡的夯实修复装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1800257U (de) * 1959-07-31 1959-11-19 Frankenwerk Maschinenfabrik G Vorrichtung zum verdichten von strassenbelag od. dgl.
DE8513149U1 (fr) * 1985-05-04 1988-01-28 Wacker-Werke Gmbh & Co Kg, 8077 Reichertshofen, De
JPH06193011A (ja) * 1992-12-28 1994-07-12 Howa Mach Ltd 振動締固め機
DE19840453A1 (de) 1998-09-04 2000-03-16 Wacker Werke Kg Bodenverdichtungsvorrichtung mit ausfahrbarem Fahrwerk
DE10226920A1 (de) 2002-06-17 2004-01-08 Wacker Construction Equipment Ag Bodenverdichtungsvorrichtung mit Fahrwerk

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208219612U (zh) 2018-04-04 2018-12-11 江苏利豪建设工程有限公司 一种新型冲击夯

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1800257U (de) * 1959-07-31 1959-11-19 Frankenwerk Maschinenfabrik G Vorrichtung zum verdichten von strassenbelag od. dgl.
DE8513149U1 (fr) * 1985-05-04 1988-01-28 Wacker-Werke Gmbh & Co Kg, 8077 Reichertshofen, De
JPH06193011A (ja) * 1992-12-28 1994-07-12 Howa Mach Ltd 振動締固め機
DE19840453A1 (de) 1998-09-04 2000-03-16 Wacker Werke Kg Bodenverdichtungsvorrichtung mit ausfahrbarem Fahrwerk
DE10226920A1 (de) 2002-06-17 2004-01-08 Wacker Construction Equipment Ag Bodenverdichtungsvorrichtung mit Fahrwerk

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114197438A (zh) * 2021-12-30 2022-03-18 西南石油大学 一种水利边坡的夯实修复装置
CN114197438B (zh) * 2021-12-30 2023-08-29 西南石油大学 一种水利边坡的夯实修复装置

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Publication number Publication date
DK3901372T3 (da) 2024-02-05
EP3901372B1 (fr) 2023-12-20
DE102020111123A1 (de) 2021-10-28
FI3901372T3 (fi) 2024-02-05

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