EP2740846B1 - Compacting machine - Google Patents

Compacting machine Download PDF

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Publication number
EP2740846B1
EP2740846B1 EP13005616.1A EP13005616A EP2740846B1 EP 2740846 B1 EP2740846 B1 EP 2740846B1 EP 13005616 A EP13005616 A EP 13005616A EP 2740846 B1 EP2740846 B1 EP 2740846B1
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EP
European Patent Office
Prior art keywords
shaft
drive
compacting machine
bearing
machine according
Prior art date
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Active
Application number
EP13005616.1A
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German (de)
French (fr)
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EP2740846A1 (en
Inventor
Thomas Darscheid
Robert Laux
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.)
Bomag GmbH and Co OHG
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Bomag GmbH and Co OHG
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Publication of EP2740846A1 publication Critical patent/EP2740846A1/en
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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
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
    • E01C19/286—Vibration or impact-imparting means; Arrangement, mounting or adjustment thereof; Construction or mounting of the rolling elements, transmission or drive thereto, e.g. to vibrator mounted inside the roll
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/026—Improving by compacting by rolling with rollers usable only for or specially adapted for soil compaction, e.g. sheepsfoot rollers
    • 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 a compacting machine with a shaft, an imbalance and a bandage, wherein the shaft is connected to both the imbalance and the bandage and is adapted to direct imbalance forces from the imbalance to the bandage.
  • a compacting machine can be designed as a vibratory compactor.
  • Vibratory compactors are dynamic compacting machines which are designed to introduce additional energy into a volume to be compacted, such as the ground, in addition to their own weight. For this purpose, vibrations are usually used, which are generated by imbalances.
  • Vibratory compactors can be used, for example, to compact the underground of roads, runways or dams. They are designed, for example, as a vibrating plate, vibrating roller, compactor, vibrating plate, duplex roller or trench roller. They can be used in the construction of traffic routes and where floors or coverings need to be compacted. As a result, the load capacity of a substrate can be increased and settlements can be reduced.
  • Such vibratory compactors have at least one bandage or a plate into which the vibration generated by the unbalance can be introduced.
  • the unbalance is provided on a shaft such as an imbalance shaft, which is mounted with bearings.
  • a shaft such as an imbalance shaft, which is mounted with bearings.
  • several adjustable unbalances are provided so that various types of vibration can be generated.
  • a vibratory compactor with a ball-bearing imbalance shaft known.
  • Essential elements of a compression device according to the invention are at least one shaft, an imbalance and a bandage, wherein the at least one shaft is connected to both the imbalance and the bandage and is adapted to direct imbalance forces from the imbalance to the bandage.
  • the at least one shaft has at least one excitation bearing, in which the imbalance rotates in a vibration mode, wherein the excitation bearing has one or more plain bearings, in particular exclusively has plain bearings.
  • the following statements relating to a shaft also apply equally to multi-shaft compactors.
  • a shaft is preferably a shaft capable of generating vibrations as it rotates.
  • the vibrations are generated in that the shaft has an imbalance, or is connected to an imbalance.
  • a shaft is adapted to rotate not only around itself but also around another shaft.
  • a second shaft together with a housing represents an imbalance and the second shaft and the imbalance rotate about the shaft.
  • the shaft is arranged to stand firm.
  • the vibrations generated are preferably forwarded to the bandage via a drive shaft.
  • a wave can also be multi-part.
  • the excitation bearing is thus that bearing which is arranged between the unbalance-forming component and the unbalance-bearing component.
  • the exciter bearing are in other words, the unbalance-forming component and the unbalance-bearing component of the compacting machine to each other and mounted relative to each other about the axis of rotation of the unbalance movable.
  • This excitation bearing according to the invention is at least partially and in particular completely formed as a plain bearing.
  • a bandage is a jacket of a roll body.
  • a smooth coat bandage is used as a bandage.
  • the bandage is rotatably mounted, for example, on a machine frame of the compacting machine.
  • This storage is called a mobile storage.
  • the traveling bearing is preferably a roller bearing. The speeds occurring at the traveling bearing are comparatively small and depend essentially on the respective one Driving speed of the compacting machine. The speeds occurring at the exciter bearing are relatively high in comparison and have a high frequency.
  • this can thus a driving bearing, which is, for example, the storage of the bandage on the machine frame of the compacting machine, and at the same time but locally separated from having a exciter bearing on which an imbalance in the vibration mode rotates.
  • the invention is expressly directed to the fact that this excitation bearing is at least partially and in particular designed exclusively as a sliding bearing.
  • hydrodynamic sliding bearings are used.
  • a hydrodynamic lubrication is provided.
  • 0.5 liters of oil per minute are provided for lubrication.
  • the vibration drive is preferably mounted on one side, particularly preferably on two sides.
  • the shaft is preferably connected to a drive shaft such that thereby the vibration drive is mounted.
  • the shaft is preferably extended in such a way that it extends in a rotationally symmetrical manner with respect to the drive shaft on the side of the vibration drive opposite the drive shaft. This part of the shaft is supported, so that the vibration drive is mounted on two opposite sides.
  • a substantially L-shaped bracket is provided on an extension of the shaft, which is guided around the vibration drive and is mounted on the drive shaft side of the vibration drive.
  • the center of gravity of the L-shaped bracket is located in a sliding bearing or adjacent to a plain bearing, so that a small load.
  • the drive of the vibration drive is preferably via a commercially available drive motor such as a gear motor.
  • a mounting plate is provided for fixing the vibration drive.
  • this Anschraubplatte has a flat mounting surface and a straight leak oil connection.
  • the sliding bearing is adapted to receive imbalance forces and driving forces. As a result, unbalance forces and driving forces can be absorbed efficiently. In this way it is possible to provide storage space saving.
  • a gear is configured to receive small axial forces on a side surface.
  • the sliding bearing is designed so that it is particularly resistant to both wear due to rotational movements and wear due to imbalance forces.
  • the compacting machine is adapted to promote pressure oil to a point of the sliding bearing on which the components of the sliding bearing can be particularly strongly compressed by imbalance forces.
  • the compacting machine comprises a drive according to the principle of the hydraulic gear motor
  • the drive comprises a housing and a drive shaft
  • the drive shaft is adapted to transmit a vibration to the drum
  • the imbalance is part of the drive, in particular the housing and / or or the drive shaft.
  • the imbalance can thus be integrated into the compacting machine in a particularly space-saving manner.
  • the hydraulics can be used to generate vibration and lubrication of the journal bearing. These tasks can thus be fulfilled particularly efficiently.
  • the sliding bearing is preferably located between the drive shaft and, for example, a part of the housing or a fixedly connected to the housing bearing element.
  • the gear mounted on a shaft which rotates the drive shaft can preferably also be mounted in a plain bearing.
  • the compacting machine comprises a drive according to the principle of the hydraulic gear motor, the drive has a housing and a drive shaft, the drive shaft is adapted to transmit a vibration to the drum and is the imbalance with the drive, in particular the housing and / or Drive shaft connected directly or indirectly.
  • the hydraulic gear motor has two drivable by an oil flow gears.
  • one of the gears is coupled with the imbalance and the other with the bandage, wherein ideally the shafts of the two gears are each arranged in a sliding bearing.
  • the mass of a shaft is not rotationally symmetrical to the axis of rotation of the drive shaft.
  • a shaft rotates about the axis of rotation the drive shaft around.
  • the housing is provided to rotate at least partially around a shaft, wherein the mass of the housing is not distributed rotationally symmetrical.
  • a much too large for the drive hydraulic gear motor is used, which is intended to run at reduced pressure.
  • a hydraulic gear motor with an allowable pressure of about 200 bar is used in continuous operation and operated at about 50 bar.
  • the bearings have capacity for additional radial loads, so that they can absorb the imbalance forces in addition to the driving forces.
  • the drive comprises a first gear, a second gear, a first shaft and a second shaft, the first gear is connected to the first shaft and the second gear to the second shaft, the first gear to the second gear engaged, the first shaft connected to the drive shaft and the axis of the second shaft is not aligned with the axis of the drive shaft.
  • the imbalance can be realized in a particularly simple manner.
  • the unbalance comprises the second shaft with the second gear.
  • the second shaft preferably rotates with the second gear around the axis of rotation of the drive shaft.
  • the unbalance comprises the part of the housing of the drive which is guided around the second shaft and the second gear.
  • the part of the housing is preferably intended to rotate around the axis of rotation of the drive shaft.
  • the imbalance of this part of the housing is not rotationally symmetrical to the axis of rotation of the drive shaft.
  • the first and the second shaft are both ideally each stored in a plain bearing.
  • this overall arrangement thus also comprises at least one traveling bearing arranged separately from these plain bearings, in which ultimately the bandage is rotatably mounted to the machine frame.
  • the assembly is provided so that it can be connected as a whole with other components in order to generate in these vibrations can.
  • a connection between a toothing of the drive and the sliding bearing is present, so that oil, which are used to drive the hydraulic gear motor can also be performed to the sliding bearing so that it can be used for bearing lubrication.
  • oil which are used to drive the hydraulic gear motor
  • lubrication of the sliding bearing can be carried out in a particularly simple manner.
  • the provision of an oil pump and an oil filter specifically for the lubrication as well as the maintenance of these parts and the provision of a clean space can be omitted.
  • the oil used is preferably hydraulic oil.
  • Pressure to convey oil to the hydraulic gear motor can also be used to bring oil to the journal bearing.
  • oil is brought to the sleeve bearing by centrifugal forces generated by the rotation of a shaft about a drive shaft.
  • the installation space in which the sliding bearing is arranged such that it is suitable for being completely filled with oil.
  • Sufficient lubrication of the sliding bearing can be ensured in this way particularly easy.
  • the amount of oil for bearing lubrication is kept very small, on the order of one liter per minute.
  • the space encloses the plain bearing almost completely.
  • the size of the installation space in which the slide bearing is arranged is expediently limited such that the oil surrounding the slide bearing can be exchanged quickly enough to dissipate a sufficient amount of heat.
  • the compacting machine is adapted to achieve the heat dissipation via the preferably high drive oil flow.
  • the heat from the sliding bearing is preferably passed into a toothing of the hydraulic gear motor, so that it can be derived with the drive oil.
  • the compacting machine has two or more shafts whose speed and / or position can be controlled, so that a direction of oscillation is adjustable.
  • the compaction energy can thus be used specifically and adapted to the requirements. Preferably, this allows a directional oscillation and / or a variable direction, in particular a directional and / or variable amplitude.
  • the shafts are adapted to be able to rotate independently of each other, so that it can be provided that they rotate with different speeds and / or phase angles to each other. As a result, variable vibrations can be provided, which are repeated continuously.
  • a pickup and a display are provided, wherein the pickup is adapted to detect the position and / or speed of a shaft and forward it to the display.
  • An operator of the compaction machine thus receives information about the position and / or speed of a shaft and can change it if necessary.
  • the targeted setting of a directional vibration in particular a directed amplitude and / or a variable direction is preferably simplified.
  • the transducer is preferably an electrical pickup, preferably a Hall sensor with magnetic ring or an inductive pickup is provided.
  • the display used is preferably a display or a number of light sources, each of which stands for different settings.
  • a control or regulating device is provided, with which the operator can adjust the position and / or speed of a shaft.
  • a hydraulic valve is provided, with which the oil flow can be influenced in such a way that the position and / or rotational speed of a shaft change.
  • the hydraulic valve can be opened to different degrees in order to adjust the magnitude of the volume flow, which is passed to the toothing, so that thus the speed of the gears can be influenced.
  • software is provided which is set up to process the position and / or rotational speed detected by the pickup and to control the drives accordingly.
  • the software can make it possible to adapt the position and / or speed of a shaft to the needs. This relieves the operator of this task.
  • the software is arranged to continuously perform the adjustment during operation. Adjustments can be made very often.
  • Fig. 1 illustrates a trained as a vibrating roller compaction machine 30, as it is used in traffic surface construction for compaction of the substrate. It has a frame 31, a cab 32 and one to two bandages 33. Within at least one bandage is a vibration drive for generating vibrations, which is transmitted from the relevant bandage 33 to the ground.
  • FIG. 2 shows a vibration drive 1 with a housing 2, in which by means of a first sliding bearing 3, a first shaft 4 is mounted.
  • the first shaft 4 is provided with a first gear 5, which has a first toothing 6.
  • a second shaft 8 is mounted in the housing 2.
  • the second shaft 8 is provided with a second gear 9, which has a second toothing 10.
  • the first shaft 4 and the second shaft 8 and the first gear 5 and the second gear 9 are arranged such that the first gear 6 and the second gear 10 engage with each other and the first gear 5 meshes with the second gear 9.
  • the first shaft 4 merges into the drive shaft 11.
  • the shaft 4 is thus not formed integrally with the drive shaft 11.
  • the first shaft 4 is mounted rotationally symmetrical to the drive shaft 11.
  • the second shaft 8 is mounted such that its axis of rotation is not aligned with the axis of rotation of the drive shaft 11 and the first shaft 4.
  • a sealing ring 12 is provided between the housing 2 and the drive shaft 11, a sealing ring 12 is provided.
  • the drive shaft 11 is connected by means of a press connection 13 with a bandage holder 14, which is supported by the driving bearing 15 in the bandage 33.
  • the driving bearing 15 and the exciter bearing 23 are spatially and functionally separated.
  • a feed 16 is provided, which is continued in the drive shaft 11 and extends to the first toothing 6, the second toothing 10, the first sliding bearing 3 and the second sliding bearing 7.
  • a sequence 17 is provided which extends from the first toothing 6, the second toothing 10, the first sliding bearing 3 and the second sliding bearing 7 through the drive shaft 11 and the drum support 14.
  • Inlet 16 and outlet 17 are each connected to a pressure oil supply device, not shown.
  • the first gearwheel 5 meshes with the second gearwheel 9. Due to the bearing of the first shaft 4 rotationally symmetrical to the drive shaft 11 in the axis R and the bearing of the second shaft 8 such that its rotational axis R 'coincides with the axis of rotation R the drive shaft 11 is parallel, as in the illustrated example, an imbalance is formed.
  • This imbalance comprises the weight of the second shaft 8 with the second gear 9 and the portion of the housing 2, which is guided around the second shaft 8 with the second gear 9.
  • This unbalance which rotates in the vibration mode about the axis of rotation R of the first shaft, generates a vibration which is introduced by the drive shaft 11 and the bandage holder 14 in a bandage, not shown, (indicated by the arrows 33).
  • the first slide bearing 3 thus forms a excitation bearing 23, since it is the bearing in which the unbalance of the vibration drive 1 rotates in the vibration mode.
  • a driving bearing 25 between the drive shaft 11 and the bandage 33 is present, which, as in the present embodiment, preferably a rolling bearing of known design and in which the bandage 33 of the compacting machine 30 rotates about the drum holder 14 while driving.
  • the vibration drive 1 can withstand high loads and it can be used high speeds. Compared to a conventional bearing with rolling bearings, the vibration drive 1 is quiet. The construction can be carried out to save space.
  • the plain bearings 3.7 take on both drive and centrifugal forces.
  • the vibration drive 1 is designed to save space. This type of oil supply is particularly effective in systems with existing hydraulics.
  • FIG. 3 shows a vibration drive 1, which is mounted on two sides.
  • This vibratory drive 1 is not only stored by the fact that the first shaft 4 merges into the drive shaft 11, but the first shaft 4 is also pulled out of the housing 2 on the opposite side of the drive shaft 11 and firmly held by a pin 18.
  • another drive bearing 15 is present.
  • the vibratory drive 1 is with respect to the further construction with the embodiment of Fig. 2 comparable, so that reference is made here to the previous statements.
  • the excitation bearing 23 is also formed here as a sliding bearing 3, in which the housing 2 rotates in the vibration mode, the axis R. Again, the driving bearings 15 and the exciter bearing 23 are thus spatially separated.
  • FIG. 4 shows a vibratory drive 1, which is fastened by means of a screw-on 19 frontally on the drum support 14.
  • This Anschraubplatte 19 has a flat mounting surface 20 and a straight leak oil connection 21.
  • a bracket 22 is provided, in which an extended part of the first shaft 4 is received. This bracket 22 extends in the direction of the mounting plate 19, so that its center of gravity is in the storage area.
  • the vibration drive 1 can be safely received without additionally loading the drive shaft 11, on the other hand, the bracket 22 allows the mounting of the vibration drive 1 on one side, so that space can be better utilized.
  • the yoke and the first shaft 4 rotate about the axis R in a manner comparable to the above, with the yoke acting as imbalance, comparable to the housing 2.
  • the exciter bearing 23 is designed as a sliding bearing 3.
  • each other can also be coupled with each other two vibratory drives 1, which rotate in opposite directions to each other.
  • the two vibration drives can be controlled such that a directed amplitude and their change in direction similar to vibrating plates and certain rollers, such as asphalt manager known, is possible.
  • a Hall sensor with magnetic ring for detecting rotational speed and position of a shaft 4, 8 may be provided. By detecting the current speed and position of a shaft 4, 8, the vibration can be controlled more targeted.
  • the Hall sensor can be used to pass the acquired data to a display and / or to a software. The operator or software can then adjust the oil supply based on the data collected.
  • FIG. 5 shows imbalance masses in the shafts 25 of a gear motor 24 (with the cover removed). These shafts 25 are solid or unbalanced mass 26 on one side and hollow on the other side. In operation, these waves generate 25 in that their masses are not distributed rotationally symmetric vibrations.
  • the vibration By aligning the shafts 25 to each other, the vibration can be selectively influenced.
  • a directional amplitude can be generated.
  • Each shaft 25 has its own trained as a slide bearing 3 exciter bearing 23 between the shaft and the housing 28.
  • the shafts 25 rotate in vibration while the waves R1 and R2.
  • the axis of rotation R3 of the bandage 33 is parallel thereto and extends from the exciter bearings 23 separated by the driving bearing 15th
  • the excitation bearing 23 is formed in the various embodiments as a sliding bearing.

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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)
  • Agronomy & Crop Science (AREA)
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  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Description

Die Erfindung betrifft eine Verdichtungsmaschine mit einer Welle, einer Unwucht und einer Bandage, wobei die Welle sowohl mit der Unwucht als auch mit der Bandage verbunden ist und eingerichtet ist, Unwuchtkräfte von der Unwucht zu der Bandage zu leiten.The invention relates to a compacting machine with a shaft, an imbalance and a bandage, wherein the shaft is connected to both the imbalance and the bandage and is adapted to direct imbalance forces from the imbalance to the bandage.

Eine Verdichtungsmaschine kann als Vibrationsverdichter ausgeführt sein. Vibrationsverdichter sind dynamische Verdichtungsmaschinen, die dazu eingerichtet sind, neben ihrem Eigengewicht weitere Energie in ein zu verdichtendes Volumen, wie beispielsweise den Boden einzuleiten. Dazu werden üblicherweise Vibrationen eingesetzt, die durch Unwuchten erzeugt werden. Vibrationsverdichter können beispielsweise eingesetzt werden, um den Untergrund von Straßen, Landebahnen oder Dämmen zu verdichten. Sie werden beispielsweise als Rüttelplatte, Vibrations-Walze, Walzenzug, Vibrationsplatte, Duplexwalze oder Grabenwalze ausgeführt. Sie können beim Bau von Verkehrswegen und dort, wo Boden oder Beläge verdichtet werden müssen, eingesetzt werden. Dadurch kann die Tragfähigkeit eines Untergrunds erhöht werden und Setzungen können vermindert werden.A compacting machine can be designed as a vibratory compactor. Vibratory compactors are dynamic compacting machines which are designed to introduce additional energy into a volume to be compacted, such as the ground, in addition to their own weight. For this purpose, vibrations are usually used, which are generated by imbalances. Vibratory compactors can be used, for example, to compact the underground of roads, runways or dams. They are designed, for example, as a vibrating plate, vibrating roller, compactor, vibrating plate, duplex roller or trench roller. They can be used in the construction of traffic routes and where floors or coverings need to be compacted. As a result, the load capacity of a substrate can be increased and settlements can be reduced.

Derartige Vibrationsverdichter weisen mindestens eine Bandage oder eine Platte auf, in welche die durch die Unwucht erzeugte Vibration eingeleitet werden kann. Üblicherweise ist die Unwucht an einer Welle wie beispielsweise einer Unwuchtwelle vorgesehen, die mit Wälzlagern gelagert ist. Teilweise sind mehrere einstellbare Unwuchten vorgesehen, so dass verschiedenartige Vibrationen erzeugt werden können. Beispielsweise ist aus der deutschen Patentschrift DE 1 098 450 B ein Vibrationsverdichter mit einer kugelgelagerten Unwuchtwelle bekannt.Such vibratory compactors have at least one bandage or a plate into which the vibration generated by the unbalance can be introduced. Usually, the unbalance is provided on a shaft such as an imbalance shaft, which is mounted with bearings. Partially several adjustable unbalances are provided so that various types of vibration can be generated. For example, from the German patent specification DE 1 098 450 B a vibratory compactor with a ball-bearing imbalance shaft known.

Bekannte Vibrationsantriebe mit einer Unwucht oder mehreren Unwuchten erfordern einen großen Bauraum. Der Aufbau ist kompliziert und aufwändig. Im Betrieb entsteht eine hohe Geräuschentwicklung und bezüglich verwirklichbarer Belastungen, wie insbesondere der Fliehkräfte und Drehzahlen ist eine Grenze erreicht worden.Known vibration drives with an imbalance or multiple imbalances require a large amount of space. The structure is complicated and expensive. During operation, a high level of noise is generated and with regard to realizable loads, in particular the centrifugal forces and speeds, a limit has been reached.

Daraus ergibt sich die Aufgabe, eine Verdichtungsmaschine bereitzustellen, bei der der Vibrationsantrieb einen geringeren Bauraum erfordert.This results in the task of providing a compacting machine in which the vibration drive requires less space.

Die Aufgabe wird gelöst durch eine Verdichtungsmaschine gemäß dem unabhängigen Anspruch. Bevorzugte Weiterbildungen sind den abhängigen Ansprüchen angegeben. Wesentliche Elemente einer erfindungsgemäßen Verdichtungseinrichtung sind wenigstens eine Welle, eine Unwucht und eine Bandage, wobei die wenigstens eine Welle sowohl mit der Unwucht als auch mit der Bandage verbunden ist und eingerichtet ist, Unwuchtkräfte von der Unwucht zu der Bandage zu leiten. Erfindungsgemäße ist es nun vorgesehen, dass die wenigstens eine Welle wenigstens ein Erregerlager aufweist, in dem die Unwucht in einem Vibrationsbetrieb rotiert, wobei das Erregerlager ein oder mehrere Gleitlager aufweist, insbesondere ausschließlich Gleitlager aufweist. Die nachstehenden Ausführungen in Bezug auf eine Welle gelten selbstverständlich gleichermaßen auch für Verdichtungseinrichtungen mit mehreren Wellen.The object is achieved by a compacting machine according to the independent claim. Preferred developments are specified in the dependent claims. Essential elements of a compression device according to the invention are at least one shaft, an imbalance and a bandage, wherein the at least one shaft is connected to both the imbalance and the bandage and is adapted to direct imbalance forces from the imbalance to the bandage. According to the invention, it is now provided that the at least one shaft has at least one excitation bearing, in which the imbalance rotates in a vibration mode, wherein the excitation bearing has one or more plain bearings, in particular exclusively has plain bearings. Of course, the following statements relating to a shaft also apply equally to multi-shaft compactors.

Eine Welle ist vorzugsweise eine Welle, die geeignet ist, Vibrationen zu erzeugen, wenn sie sich dreht. Vorzugsweise werden die Vibrationen dadurch erzeugt, dass die Welle eine Unwucht aufweist, oder mit einer Unwucht verbunden ist. In einer besonders bevorzugten Ausführungsform ist eine Welle dazu eingerichtet, sich nicht nur um sich selbst, sondern auch um eine andere Welle zu drehen. In einer Ausführungsform stellt eine zweite Welle zusammen mit einem Gehäuse eine Unwucht dar und die zweite Welle und die Unwucht drehen sich um die Welle. Vorzugsweise ist die Welle eingerichtet, dabei festzustehen. Die erzeugten Vibrationen werden vorzugsweise über eine Antriebswelle an die Bandage weitergeleitet. Eine Welle kann selbstverständlich auch mehrteilig sein.A shaft is preferably a shaft capable of generating vibrations as it rotates. Preferably, the vibrations are generated in that the shaft has an imbalance, or is connected to an imbalance. In a particularly preferred embodiment, a shaft is adapted to rotate not only around itself but also around another shaft. In one embodiment, a second shaft together with a housing represents an imbalance and the second shaft and the imbalance rotate about the shaft. Preferably, the shaft is arranged to stand firm. The vibrations generated are preferably forwarded to the bandage via a drive shaft. Of course, a wave can also be multi-part.

Das Erregerlager ist somit dasjenige Lager, das zwischen dem die Unwucht bildenden Bauteil und dem die Unwucht tragenden Bauteil angeordnet ist. Über das Erregerlager sind mit anderen Worten das die Unwucht bildende Bauteil und das die Unwucht tragende Bauteil der Verdichtungsmaschine aneinander und relativ zueinander um die Rotationsachse der Unwucht beweglich gelagert. Dieses Erregerlager ist erfindungsgemäß zumindest teilweise und insbesondere vollständig als Gleitlager ausgebildet.The excitation bearing is thus that bearing which is arranged between the unbalance-forming component and the unbalance-bearing component. About the exciter bearing are in other words, the unbalance-forming component and the unbalance-bearing component of the compacting machine to each other and mounted relative to each other about the axis of rotation of the unbalance movable. This excitation bearing according to the invention is at least partially and in particular completely formed as a plain bearing.

Eine Bandage ist ein Mantel eines Walzenkörpers. Vorzugsweise wird als Bandage eine Glattmantelbandage eingesetzt. Die Bandage ist drehbar beispielsweise an einem Maschinenrahmen der Verdichtungsmaschine gelagert. Diese Lagerung wird als Fahrlager bezeichnet. Im Gegensatz zum Erregerlager handelt es sich bei dem Fahrlager vorzugsweise um ein Wälzlager. Die am Fahrlager auftretenden Drehzahlen sind vergleichsweise gering und hängen im Wesentlichen von der jeweiligen Fahrgeschwindigkeit der Verdichtungsmaschine ab. Die am Erregerlager auftretenden Drehzahlen sind im Vergleich dazu verhältnismäßig hoch und weisen eine hohe Frequenz auf. In Bezug auf die Welle, insbesondere der Antriebswelle der Bandage, kann diese somit ein Fahrlager, bei dem es sich beispielsweise um die Lagerung der Bandage am Maschinenrahmen der Verdichtungsmaschine handelt, und gleichzeitig aber örtlich davon getrennt ein Erregerlager aufweisen, an dem eine Unwucht im Vibrationsbetrieb rotiert. Die Erfindung ist ausdrücklich darauf gerichtet, dass dieses Erregerlager zumindest teilweise und insbesondere ausschließlich als Gleitlager ausgebildet ist.A bandage is a jacket of a roll body. Preferably, a smooth coat bandage is used as a bandage. The bandage is rotatably mounted, for example, on a machine frame of the compacting machine. This storage is called a mobile storage. In contrast to the exciter bearing, the traveling bearing is preferably a roller bearing. The speeds occurring at the traveling bearing are comparatively small and depend essentially on the respective one Driving speed of the compacting machine. The speeds occurring at the exciter bearing are relatively high in comparison and have a high frequency. With respect to the shaft, in particular the drive shaft of the bandage, this can thus a driving bearing, which is, for example, the storage of the bandage on the machine frame of the compacting machine, and at the same time but locally separated from having a exciter bearing on which an imbalance in the vibration mode rotates. The invention is expressly directed to the fact that this excitation bearing is at least partially and in particular designed exclusively as a sliding bearing.

Als Gleitlager werden vorzugsweise hydrodynamische Gleitlager eingesetzt. Vorzugsweise ist eine hydrodynamische Schmierung vorgesehen. Bevorzugt werden 0,5 Liter Öl pro Minute für die Schmierung bereitgestellt.As plain bearings preferably hydrodynamic sliding bearings are used. Preferably, a hydrodynamic lubrication is provided. Preferably, 0.5 liters of oil per minute are provided for lubrication.

Zweckmäßigerweise bilden Welle, Unwucht und Gleitlager einen Vibrationsantrieb. Der Vibrationsantrieb ist vorzugsweise einseitig, besonders bevorzugt zweiseitig gelagert. Bei der einseitigen Lagerung ist die Welle vorzugsweise derart mit einer Antriebswelle verbunden, dass dadurch der Vibrationsantrieb gelagert ist. Bei der zweiseitigen Lagerung ist zusätzlich vorzugsweise die Welle derart verlängert, dass sie sich rotationssymmetrisch zu der Antriebswelle auf der der Antriebswelle entgegengesetzten Seite des Vibrationsantriebs von diesem weg erstreckt. Dieser Teil der Welle ist gelagert, so dass der Vibrationsantrieb auf zwei einander entgegengesetzten Seiten gelagert ist.Appropriately, form shaft, imbalance and plain bearings vibratory drive. The vibration drive is preferably mounted on one side, particularly preferably on two sides. In the one-sided storage, the shaft is preferably connected to a drive shaft such that thereby the vibration drive is mounted. In addition, in the case of two-sided mounting, the shaft is preferably extended in such a way that it extends in a rotationally symmetrical manner with respect to the drive shaft on the side of the vibration drive opposite the drive shaft. This part of the shaft is supported, so that the vibration drive is mounted on two opposite sides.

In einer Ausführungsform ist an einer Verlängerung der Welle ein im Wesentlichen L-förmiger Bügel vorgesehen, der um den Vibrationsantrieb herumgeführt ist und auf der Antriebswellenseite des Vibrationsantriebs befestigt ist. Vorzugsweise liegt der Schwerpunkt des L-förmigen Bügels in einem Gleitlager oder benachbart zu einem Gleitlager, so dass eine geringe Belastung entsteht. Der Antrieb des Vibrationsantriebs erfolgt vorzugsweise über einen handelsüblichen Antriebsmotor wie zum Beispiel einen Zahnradmotor.In one embodiment, a substantially L-shaped bracket is provided on an extension of the shaft, which is guided around the vibration drive and is mounted on the drive shaft side of the vibration drive. Preferably, the center of gravity of the L-shaped bracket is located in a sliding bearing or adjacent to a plain bearing, so that a small load. The drive of the vibration drive is preferably via a commercially available drive motor such as a gear motor.

Bevorzugt ist eine Anschraubplatte zur Fixierung des Vibrationsantriebs vorgesehen. Vorzugsweise weist diese Anschraubplatte eine ebene Anschraubfläche und einen geraden Leckölanschluss auf.Preferably, a mounting plate is provided for fixing the vibration drive. Preferably, this Anschraubplatte has a flat mounting surface and a straight leak oil connection.

Zweckmäßigerweise ist das Gleitlager zur Aufnahme von Unwuchtkräften und Antriebskräften eingerichtet. Dadurch können Unwuchtkräfte und Antriebskräfte effizient aufgenommen werden. Auf diese Weise ist es möglich die Lagerung besonders platzsparend vorzusehen.Conveniently, the sliding bearing is adapted to receive imbalance forces and driving forces. As a result, unbalance forces and driving forces can be absorbed efficiently. In this way it is possible to provide storage space saving.

Als Antriebskräfte werden vorzugsweise die Kräfte verstanden, die infolge von Druckdifferenzen auf die Welle wirken.As driving forces are preferably understood the forces acting as a result of pressure differences on the shaft.

In einer Ausführungsform ist ein Zahnrad dazu eingerichtet, kleine Axialkräfte an einer Seitenfläche aufzunehmen.In one embodiment, a gear is configured to receive small axial forces on a side surface.

Vorzugsweise ist das Gleitlager derart ausgelegt, dass es besonders widerstandsfähig sowohl gegen den Verschleiß durch Drehbewegungen als auch gegen Verschleiß durch Unwuchtkräfte ist. In einer Bauform ist die Verdichtungsmaschine dazu eingerichtet, Drucköl an eine Stelle des Gleitlagers zu fördern, an der die Bauteile des Gleitlagers durch Unwuchtkräfte besonders stark zusammengedrückt werden können.Preferably, the sliding bearing is designed so that it is particularly resistant to both wear due to rotational movements and wear due to imbalance forces. In one design, the compacting machine is adapted to promote pressure oil to a point of the sliding bearing on which the components of the sliding bearing can be particularly strongly compressed by imbalance forces.

In einer Ausführungsform umfasst die Verdichtungsmaschine einen Antrieb nach dem Prinzip des hydraulischen Zahnradmotors, weist der Antrieb ein Gehäuse und eine Antriebswelle auf, ist die Antriebswelle eingerichtet, eine Vibration auf die Bandage zu übertragen und ist die Unwucht Teil des Antriebs, insbesondere des Gehäuses und/oder der Antriebswelle. Die Unwucht kann so besonders platzsparend in die Verdichtungsmaschine integriert werden. Bei Systemen mit vorliegender Hydraulik, wie mobilen Arbeitsmaschinen zur Bodenverdichtung, kann die Hydraulik so zur Erzeugung der Vibration und der Schmierung des Gleitlagers eingesetzt werden. Diese Aufgaben können so besonders effizient erfüllt werden. Das Gleitlager liegt dabei vorzugsweise zwischen der Antriebswelle und beispielsweise einem Teil des Gehäuses beziehungsweise einem mit dem Gehäuse fest verbundenen Lagerelement. Zusätzlich kann bevorzugt auch das auf einer die Antriebswelle umlaufenden Welle gelagerte Zahnrad in einem Gleitlager gelagert sein.In one embodiment, the compacting machine comprises a drive according to the principle of the hydraulic gear motor, the drive comprises a housing and a drive shaft, the drive shaft is adapted to transmit a vibration to the drum and the imbalance is part of the drive, in particular the housing and / or or the drive shaft. The imbalance can thus be integrated into the compacting machine in a particularly space-saving manner. In systems with existing hydraulics, such as mobile soil compaction machinery, the hydraulics can be used to generate vibration and lubrication of the journal bearing. These tasks can thus be fulfilled particularly efficiently. The sliding bearing is preferably located between the drive shaft and, for example, a part of the housing or a fixedly connected to the housing bearing element. In addition, the gear mounted on a shaft which rotates the drive shaft can preferably also be mounted in a plain bearing.

Bevorzugt umfasst die Verdichtungsmaschine einen Antrieb nach dem Prinzip des hydraulischen Zahnradmotors, weist der Antrieb ein Gehäuse und eine Antriebswelle auf, ist die Antriebswelle eingerichtet, eine Vibration auf die Bandage zu übertragen und ist die Unwucht mit dem Antrieb, insbesondere dem Gehäuse und/oder der Antriebswelle mittelbar oder unmittelbar verbunden.Preferably, the compacting machine comprises a drive according to the principle of the hydraulic gear motor, the drive has a housing and a drive shaft, the drive shaft is adapted to transmit a vibration to the drum and is the imbalance with the drive, in particular the housing and / or Drive shaft connected directly or indirectly.

In einer bevorzugten Ausführungsform weist der hydraulische Zahnradmotor zwei durch einen Ölstrom antreibbare Zahnräder auf. Vorzugsweise ist eines der Zahnräder mit der Unwucht und das andere mit der Bandage gekoppelt, wobei idealerweise die Wellen der beiden Zahnräder jeweils in einem Gleitlager angeordnet sind.In a preferred embodiment, the hydraulic gear motor has two drivable by an oil flow gears. Preferably, one of the gears is coupled with the imbalance and the other with the bandage, wherein ideally the shafts of the two gears are each arranged in a sliding bearing.

Vorzugsweise ist die Masse einer Welle nicht rotationssymmetrisch zu der Drehachse der Antriebswelle. In einer besonders bevorzugten Ausführungsform dreht sich eine Welle um die Drehachse der Antriebswelle herum. Bevorzugt ist das Gehäuse dazu vorgesehen, sich zumindest teilweise um eine Welle herum zu drehen, wobei die Masse des Gehäuses nicht rotationssymmetrisch verteilt ist.Preferably, the mass of a shaft is not rotationally symmetrical to the axis of rotation of the drive shaft. In a particularly preferred embodiment, a shaft rotates about the axis of rotation the drive shaft around. Preferably, the housing is provided to rotate at least partially around a shaft, wherein the mass of the housing is not distributed rotationally symmetrical.

In einer Ausführungsform wird ein für den Antrieb deutlich zu großer hydraulischer Zahnradmotor eingesetzt, der dazu vorgesehen ist, mit vermindertem Druck zu laufen. Vorzugsweise wird ein hydraulischer Zahnradmotor mit einem zulässigen Druck von etwa 200 bar im Dauerbetrieb eingesetzt und bei etwa 50 bar betrieben. Dadurch haben die Lager Kapazität für weitere radiale Belastungen, so dass sie zusätzlich zu den Antriebskräften die Unwuchtkräfte aufnehmen können.In one embodiment, a much too large for the drive hydraulic gear motor is used, which is intended to run at reduced pressure. Preferably, a hydraulic gear motor with an allowable pressure of about 200 bar is used in continuous operation and operated at about 50 bar. As a result, the bearings have capacity for additional radial loads, so that they can absorb the imbalance forces in addition to the driving forces.

In einer besonders bevorzugten Ausführungsform weist der Antrieb ein erstes Zahnrad, ein zweites Zahnrad, eine erste Welle und eine zweite Welle auf, ist das erste Zahnrad mit der ersten Welle und das zweite Zahnrad mit der zweiten Welle verbunden, das erste Zahnrad mit dem zweiten Zahnrad in Eingriff, die erste Welle mit der Antriebswelle verbunden und die Achse der zweiten Welle fluchtet nicht mit der Achse der Antriebswelle. Bei dieser Bauform kann die Unwucht auf besonders einfache Weise realisiert werden. Vorzugsweise umfasst die Unwucht die zweite Welle mit dem zweiten Zahnrad. Dabei dreht sich die zweite Welle mit dem zweiten Zahnrad vorzugsweise um die Drehachse der Antriebswelle herum. In einer besonders bevorzugten Ausführungsform umfasst die Unwucht den Teil des Gehäuses des Antriebs, der um die zweite Welle und das zweite Zahnrad herumgeführt ist. Dabei ist der Teil des Gehäuses vorzugsweise dafür vorgesehen, sich um die Drehachse der Antriebswelle herum zu drehen. Zweckmäßigerweise ist die Unwucht dieses Teils des Gehäuses nicht rotationssymmetrisch zu der Drehachse der Antriebswelle. Die erste und die zweite Welle sind dabei beide idealerweise jeweils in einem Gleitlager gelagert. Zusätzlich zu diesen Gleitlagern zur Lagerung der ersten und der zweiten Welle umfasst diese Gesamtanordnung somit noch wenigstens ein getrennt zu diesen Gleitlagern angeordnetes Fahrlager, in dem letztlich die Bandage drehbar zum Maschinenrahmen gelagert ist.In a particularly preferred embodiment, the drive comprises a first gear, a second gear, a first shaft and a second shaft, the first gear is connected to the first shaft and the second gear to the second shaft, the first gear to the second gear engaged, the first shaft connected to the drive shaft and the axis of the second shaft is not aligned with the axis of the drive shaft. In this design, the imbalance can be realized in a particularly simple manner. Preferably, the unbalance comprises the second shaft with the second gear. In this case, the second shaft preferably rotates with the second gear around the axis of rotation of the drive shaft. In a particularly preferred embodiment, the unbalance comprises the part of the housing of the drive which is guided around the second shaft and the second gear. In this case, the part of the housing is preferably intended to rotate around the axis of rotation of the drive shaft. Conveniently, the imbalance of this part of the housing is not rotationally symmetrical to the axis of rotation of the drive shaft. The first and the second shaft are both ideally each stored in a plain bearing. In addition to these plain bearings for supporting the first and second shafts, this overall arrangement thus also comprises at least one traveling bearing arranged separately from these plain bearings, in which ultimately the bandage is rotatably mounted to the machine frame.

Es können besonders kompakte Bauformen realisiert werden, indem Antrieb, Welle und Gleitlager in einer Baugruppe vereint werden. So kann ein besonders einfacher Aufbau realisiert werden.Particularly compact designs can be realized by combining drive, shaft and slide bearing in one assembly. Thus, a particularly simple structure can be realized.

Zweckmäßigerweise wird die Baugruppe derart vorgesehen, dass sie als Ganzes mit anderen Bauteilen verbunden werden kann, um in diesen Vibrationen erzeugen zu können.Conveniently, the assembly is provided so that it can be connected as a whole with other components in order to generate in these vibrations can.

Vorzugsweise ist eine Verbindung zwischen einer Verzahnung des Antriebs und dem Gleitlager vorhanden, so dass Öl, das zum Antrieb des hydraulischen Zahnradmotors eingesetzt werden kann, auch zu dem Gleitlager geführt werden kann, so dass es zur Lagerschmierung einsetzbar ist. Dadurch kann eine Schmierung des Gleitlagers auf besonders einfache Weise durchgeführt werden. Die Bereitstellung einer Ölpumpe und eines Ölfilters speziell für die Schmierung sowie die Wartung dieser Teile und die Bereitstellung eines sauberen Raums können entfallen.Preferably, a connection between a toothing of the drive and the sliding bearing is present, so that oil, which are used to drive the hydraulic gear motor can also be performed to the sliding bearing so that it can be used for bearing lubrication. As a result, lubrication of the sliding bearing can be carried out in a particularly simple manner. The provision of an oil pump and an oil filter specifically for the lubrication as well as the maintenance of these parts and the provision of a clean space can be omitted.

Als Öl wird vorzugsweise Hydrauliköl eingesetzt. Druck, mit dem Öl zu dem hydraulischen Zahnradmotors gefördert wird, kann auch dazu genutzt werden, Öl zu dem Gleitlager zu bringen. In einer bevorzugten Ausführungsform wird Öl durch Fliehkräfte, die durch die Rotation einer Welle um eine Antriebswelle entstehen, zu dem Gleitlager gebracht.The oil used is preferably hydraulic oil. Pressure to convey oil to the hydraulic gear motor can also be used to bring oil to the journal bearing. In a preferred embodiment, oil is brought to the sleeve bearing by centrifugal forces generated by the rotation of a shaft about a drive shaft.

Es ist zweckmäßig, den Bauraum, in dem das Gleitlager angeordnet ist, derart vorzusehen, dass er dazu geeignet ist, vollständig mit Öl gefüllt zu sein. Eine ausreichende Schmierung des Gleitlagers kann auf diese Weise besonders einfach sichergestellt werden. Vorzugsweise wird die Ölmenge zur Lagerschmierung sehr klein, in der Größenordnung von einem Liter pro Minute gehalten.It is expedient to provide the installation space in which the sliding bearing is arranged such that it is suitable for being completely filled with oil. Sufficient lubrication of the sliding bearing can be ensured in this way particularly easy. Preferably, the amount of oil for bearing lubrication is kept very small, on the order of one liter per minute.

Vorzugsweise umschließt der Bauraum das Gleitlager nahezu vollständig.Preferably, the space encloses the plain bearing almost completely.

Es ist vorteilhaft, wenn der Bauraum, in dem das Gleitlager angeordnet ist, sowohl einen Zuflusskanal als auch einen Abflusskanal aufweist, so dass das Gleitlager eingerichtet ist, sich in einem Ölfluss zu befinden und Wärme von dem Gleitlager über den Ölfluss abführbar ist. Eine Überwärmung des Gleitlagers kann so auf einfache Weise verhindert werden.It is advantageous if the space in which the sliding bearing is arranged, both an inflow channel and a drain channel, so that the sliding bearing is adapted to be in an oil flow and heat from the sliding bearing via the oil flow can be dissipated. Overheating of the plain bearing can be prevented in a simple manner.

Die Größe des Bauraums, in dem das Gleitlager angeordnet ist, ist zweckmäßigerweise derart begrenzt, dass das Öl, welches das Gleitlager umgibt, schnell genug ausgetauscht werden kann, um eine ausreichende Wärmemenge abzuführen.The size of the installation space in which the slide bearing is arranged is expediently limited such that the oil surrounding the slide bearing can be exchanged quickly enough to dissipate a sufficient amount of heat.

In einer Ausführungsform ist die Verdichtungsmaschine dazu eingerichtet, die Wärmeabfuhr über den vorzugsweise hohen Antriebsölfluß zu erreichen. Dazu wird die Wärme aus dem Gleitlager vorzugsweise in eine Verzahnung des hydraulischen Zahnradmotors geleitet, so dass sie mit dem Antriebsöl abgeleitet werden kann.In one embodiment, the compacting machine is adapted to achieve the heat dissipation via the preferably high drive oil flow. For this purpose, the heat from the sliding bearing is preferably passed into a toothing of the hydraulic gear motor, so that it can be derived with the drive oil.

In einer bevorzugten Ausführungsform weist die Verdichtungsmaschine zwei oder mehr Wellen auf, deren Drehzahl und/oder Stellung steuerbar sind, so dass eine Schwingungsrichtung einstellbar ist. Die Verdichtungsenergie kann so gezielt eingesetzt und an den Bedarf angepasst werden. Vorzugsweise wird dadurch eine gerichtete Schwingung und/oder eine veränderbare Richtung, insbesondere eine gerichtete und/oder veränderbare Amplitude ermöglicht.In a preferred embodiment, the compacting machine has two or more shafts whose speed and / or position can be controlled, so that a direction of oscillation is adjustable. The compaction energy can thus be used specifically and adapted to the requirements. Preferably, this allows a directional oscillation and / or a variable direction, in particular a directional and / or variable amplitude.

In einer besonders bevorzugten Ausführungsform sind die Wellen dazu eingerichtet, sich unabhängig voneinander drehen zu können, so dass vorgesehen werden kann, dass sie sich mit unterschiedlichen Drehzahlen und/oder Phasenlagen zueinander drehen. Dadurch können variable Vibrationen vorgesehen werden, die sich kontinuierlich wiederholen.In a particularly preferred embodiment, the shafts are adapted to be able to rotate independently of each other, so that it can be provided that they rotate with different speeds and / or phase angles to each other. As a result, variable vibrations can be provided, which are repeated continuously.

Vorzugsweise sind ein Aufnehmer und eine Anzeige vorgesehen, wobei der Aufnehmer eingerichtet ist, die Stellung und/oder Drehzahl einer Welle zu erfassen und an die Anzeige weiterzuleiten. Ein Bediener der Verdichtungsmaschine erhält so eine Information über Stellung und/oder Drehzahl einer Welle und kann diese bei Bedarf ändern. Dadurch wird vorzugsweise die gezielte Einstellung einer gerichteten Schwingung, insbesondere einer gerichteten Amplitude und/oder eine veränderbare Richtung vereinfacht.Preferably, a pickup and a display are provided, wherein the pickup is adapted to detect the position and / or speed of a shaft and forward it to the display. An operator of the compaction machine thus receives information about the position and / or speed of a shaft and can change it if necessary. As a result, the targeted setting of a directional vibration, in particular a directed amplitude and / or a variable direction is preferably simplified.

Als Aufnehmer ist vorzugsweise ein elektrischer Aufnehmer, bevorzugt ein Hall Sensor mit Magnetring oder ein induktiver Aufnehmer vorgesehen.The transducer is preferably an electrical pickup, preferably a Hall sensor with magnetic ring or an inductive pickup is provided.

Als Anzeige wird vorzugsweise ein Display oder eine Anzahl von Leuchtmitteln, die jeweils für verschiedene Einstellungen stehen, eingesetzt.The display used is preferably a display or a number of light sources, each of which stands for different settings.

Zweckmäßigerweise ist eine Steuer- oder Regelvorrichtung vorgesehen, mit der der Bediener die Stellung und/oder Drehzahl einer Welle einstellen kann. Vorzugsweise ist ein Hydraulikventil vorgesehen, mit dem der Ölfluss derart beeinflusst werden kann, dass sich Stellung und/oder Drehzahl einer Welle ändern. Bei Vorsehen eines hydraulischen Zahnradmotors ist es bevorzugt, dass das Hydraulikventil verschieden weit geöffnet werden kann, um die Stärke des Volumenstroms, der zu der Verzahnung geleitet wird einstellen zu können, so dass damit die Drehzahl der Zahnräder beeinflusst werden kann.Conveniently, a control or regulating device is provided, with which the operator can adjust the position and / or speed of a shaft. Preferably, a hydraulic valve is provided, with which the oil flow can be influenced in such a way that the position and / or rotational speed of a shaft change. When providing a hydraulic gear motor, it is preferred that the hydraulic valve can be opened to different degrees in order to adjust the magnitude of the volume flow, which is passed to the toothing, so that thus the speed of the gears can be influenced.

In einer besonders bevorzugten Ausführungsform ist eine Software vorhanden, die eingerichtet ist, die von dem Aufnehmer erfasste Stellung und/oder Drehzahl zu verarbeiten und die Antriebe entsprechend anzusteuern. Die Software kann es ermöglichen Stellung und/oder Drehzahl einer Welle an den Bedarf anzupassen. Dadurch wird der Bediener von dieser Aufgabe entlastet. Vorzugsweise ist die Software derart eingerichtet, dass sie die Anpassung im Betrieb kontinuierlich durchführt. Anpassungen können dadurch besonders häufig durchgeführt werden.In a particularly preferred embodiment, software is provided which is set up to process the position and / or rotational speed detected by the pickup and to control the drives accordingly. The software can make it possible to adapt the position and / or speed of a shaft to the needs. This relieves the operator of this task. Preferably, the software is arranged to continuously perform the adjustment during operation. Adjustments can be made very often.

Nachfolgend wird die Erfindung anhand von in den Zeichnungen dargestellten Ausführungsbeispielen weiter beschrieben. Es zeigen schematisch:

Figur 1
eine Verdichtungsmaschine;
Figur 2
einen Vibrationsantrieb;
Figur 3
einen Vibrationsantrieb, der an zwei Seiten gelagert ist;
Figur 4
einen üblichen Vibrationsantrieb, der mit einer Anschraubplatte und einem Bügel befestigt ist; und
Figur 5
Unwuchtmassen in den Wellen eines Zahnradmotors.
The invention will be further described with reference to embodiments shown in the drawings. They show schematically:
FIG. 1
a compacting machine;
FIG. 2
a vibration drive;
FIG. 3
a vibratory drive mounted on two sides;
FIG. 4
a conventional vibration drive, which is fastened with a screw-on and a bracket; and
FIG. 5
Imbalance masses in the waves of a gear motor.

Fig. 1 veranschaulicht eine als Vibrationswalze ausgebildete Verdichtungsmaschine 30, wie sie im Verkehrsflächenbau zur Verdichtung des Untergrunds Verwendung findet. Sie weist einen Rahmen 31, eine Führerkabine 32 und eine bis zwei Bandagen 33 auf. Innerhalb mindestens einer Bandage befindet sich ein Vibrationsantrieb zur Erzeugung von Schwingungen, die von der betreffenden Bandage 33 auf den Untergrund übertragen wird. Fig. 1 illustrates a trained as a vibrating roller compaction machine 30, as it is used in traffic surface construction for compaction of the substrate. It has a frame 31, a cab 32 and one to two bandages 33. Within at least one bandage is a vibration drive for generating vibrations, which is transmitted from the relevant bandage 33 to the ground.

Figur 2 zeigt einen Vibrationsantrieb 1 mit einem Gehäuse 2, in dem mittels eines ersten Gleitlagers 3 eine erste Welle 4 gelagert ist. Die erste Welle 4 ist mit einem ersten Zahnrad 5 versehen, das eine erste Verzahnung 6 aufweist. Mittels eines zweiten Gleitlagers 7 ist eine zweite Welle 8 in dem Gehäuse 2 gelagert. Die zweite Welle 8 ist mit einem zweiten Zahnrad 9 versehen, das eine zweite Verzahnung 10 aufweist. Die erste Welle 4 und die zweite Welle 8 sowie das erste Zahnrad 5 und das zweite Zahnrad 9 sind derart angeordnet, dass die erste Verzahnung 6 und die zweite Verzahnung 10 ineinander eingreifen und das erste Zahnrad 5 mit dem zweiten Zahnrad 9 kämmt. Die erste Welle 4 geht in die Antriebswelle 11 über. Die Welle 4 ist somit nicht einstückig mit der Antriebswelle 11 ausgebildet. Die erste Welle 4 ist rotationssymmetrisch zu der Antriebswelle 11 gelagert. Die zweite Welle 8 ist derart gelagert, dass ihre Rotationsachse nicht mit der Rotationsachse der Antriebswelle 11 und der ersten Welle 4 fluchtet. FIG. 2 shows a vibration drive 1 with a housing 2, in which by means of a first sliding bearing 3, a first shaft 4 is mounted. The first shaft 4 is provided with a first gear 5, which has a first toothing 6. By means of a second sliding bearing 7, a second shaft 8 is mounted in the housing 2. The second shaft 8 is provided with a second gear 9, which has a second toothing 10. The first shaft 4 and the second shaft 8 and the first gear 5 and the second gear 9 are arranged such that the first gear 6 and the second gear 10 engage with each other and the first gear 5 meshes with the second gear 9. The first shaft 4 merges into the drive shaft 11. The shaft 4 is thus not formed integrally with the drive shaft 11. The first shaft 4 is mounted rotationally symmetrical to the drive shaft 11. The second shaft 8 is mounted such that its axis of rotation is not aligned with the axis of rotation of the drive shaft 11 and the first shaft 4.

Zwischen dem Gehäuse 2 und der Antriebswelle 11 ist ein Dichtring 12 vorgesehen. Die Antriebswelle 11 ist mittels einer Pressverbindung 13 mit einer Bandagenhalterung 14 verbunden, die durch das Fahrlager 15 in der Bandage 33 gelagert ist. Somit sind das Fahrlager 15 und das Erregerlager 23 räumlich und funktional getrennt. In der Bandagenhalterung 14 ist ein Zulauf 16 vorgesehen, der in der Antriebswelle 11 weitergeführt wird und zu der ersten Verzahnung 6, der zweiten Verzahnung 10, dem ersten Gleitlager 3 und dem zweiten Gleitlager 7 verläuft. Ebenso ist ein Ablauf 17 vorgesehen, der von der ersten Verzahnung 6, der zweiten Verzahnung 10, dem ersten Gleitlager 3 und dem zweiten Gleitlager 7 durch die Antriebswelle 11 und die Bandagenhalterung 14 verläuft. Zulauf 16 und Ablauf 17 sind jeweils mit einer nicht gezeigten Drucköl-Bereitstellungseinrichtung verbunden.Between the housing 2 and the drive shaft 11, a sealing ring 12 is provided. The drive shaft 11 is connected by means of a press connection 13 with a bandage holder 14, which is supported by the driving bearing 15 in the bandage 33. Thus, the driving bearing 15 and the exciter bearing 23 are spatially and functionally separated. In the bandage holder 14, a feed 16 is provided, which is continued in the drive shaft 11 and extends to the first toothing 6, the second toothing 10, the first sliding bearing 3 and the second sliding bearing 7. Likewise, a sequence 17 is provided which extends from the first toothing 6, the second toothing 10, the first sliding bearing 3 and the second sliding bearing 7 through the drive shaft 11 and the drum support 14. Inlet 16 and outlet 17 are each connected to a pressure oil supply device, not shown.

Im Betrieb wird durch den Zulauf 16 Drucköl zu dem ersten Zahnrad 5 und dem zweiten Zahnrad 9 geleitet. Dadurch drehen sich das erste Zahnrad 5 und das zweite Zahnrad 9 zusammen mit der ersten Welle 4 und der zweiten Welle 8 nach dem Prinzip des hydraulischen Zahnradmotors.In operation, 16 pressure oil is passed to the first gear 5 and the second gear 9 through the inlet. As a result, the first gear 5 and the second gear 9 rotate together with the first shaft 4 and the second shaft 8 according to the principle of the hydraulic gear motor.

Durch den Zulauf 16 wird auch dem ersten Gleitlager 3 und dem zweiten Gleitlager 7 Öl zugeführt. Hier werden etwa 0,5 l/min Öl oder mehr zu dem ersten Gleitlager 3 und dem zweiten Gleitlager 7 geführt. Dadurch wird sichergestellt, dass in den Gleitlagern 3, 7 eine hydrodynamische Schmierung vorhanden ist.Through the inlet 16 and the first slide bearing 3 and the second slide bearing 7 oil is supplied. Here, about 0.5 l / min of oil or more are fed to the first slide bearing 3 and the second slide bearing 7. This ensures that in the plain bearings 3, 7 a hydrodynamic lubrication is present.

An dem weitgehend geschlossenen, rotierenden Gehäuse 2 ist eine Abdichtung nur an einer Stelle erforderlich. Durch den dort vorhandenen niedrigen Innendruck ist eine preisgünstige Dichtung ausreichend.At the largely closed, rotating housing 2, a seal is required only at one point. Due to the low internal pressure available there, a low-cost gasket is sufficient.

Im Betrieb des Vibrationsantriebs 1 kämmt das erste Zahnrad 5 mit dem zweiten Zahnrad 9. Durch die Lagerung der ersten Welle 4 rotationssymmetrisch zu der Antriebswelle 11 in der Achse R und die Lagerung der zweiten Welle 8 derart, dass deren Rotationsachse R' mit der Rotationsachse R der Antriebswelle 11 wie in dem dargestellten Beispiel parallel verläuft, wird eine Unwucht gebildet. Diese Unwucht umfasst das Gewicht der zweiten Welle 8 mit dem zweiten Zahnrad 9 und den Bereich des Gehäuses 2, der um die zweite Welle 8 mit dem zweiten Zahnrad 9 herumgeführt ist. Diese Unwucht, die im Vibrationsbetrieb um die Rotationsachse R der ersten Welle rotiert, erzeugt eine Vibration, die durch die Antriebswelle 11 und die Bandagenhalterung 14 in eine nicht gezeigte Bandage (mit den Pfeilen 33 angedeutet) eingeleitet wird. Das erste Gleitlager 3 bildet somit ein Erregerlager 23, da es das Lager ist, in dem die Unwucht des Vibrationsantriebes 1 im Vibrationsbetrieb rotiert. Vom Erregerlager 23 getrennt ist ferner ein Fahrlager 25 zwischen der Antriebswelle 11 und der Bandage 33 vorhanden, welches, wie im vorliegenden Ausführungsbeispiel, vorzugsweise ein Wälzlager bekannter Bauart ist und in dem die Bandage 33 der Verdichtungsmaschine 30 im Fahrbetrieb um die Bandagenhalterung 14 rotiert.During operation of the vibration drive 1, the first gearwheel 5 meshes with the second gearwheel 9. Due to the bearing of the first shaft 4 rotationally symmetrical to the drive shaft 11 in the axis R and the bearing of the second shaft 8 such that its rotational axis R 'coincides with the axis of rotation R the drive shaft 11 is parallel, as in the illustrated example, an imbalance is formed. This imbalance comprises the weight of the second shaft 8 with the second gear 9 and the portion of the housing 2, which is guided around the second shaft 8 with the second gear 9. This unbalance, which rotates in the vibration mode about the axis of rotation R of the first shaft, generates a vibration which is introduced by the drive shaft 11 and the bandage holder 14 in a bandage, not shown, (indicated by the arrows 33). The first slide bearing 3 thus forms a excitation bearing 23, since it is the bearing in which the unbalance of the vibration drive 1 rotates in the vibration mode. Separated from the exciter bearing 23 is further a driving bearing 25 between the drive shaft 11 and the bandage 33 is present, which, as in the present embodiment, preferably a rolling bearing of known design and in which the bandage 33 of the compacting machine 30 rotates about the drum holder 14 while driving.

Dadurch, dass zur Lagerung der Wellen 4, 8 des Vibrationsantriebs 1 ausschließlich Gleitlager 3,7 eingesetzt werden, kann der Vibrationsantrieb 1 hohen Belastungen standhalten und es können hohe Drehzahlen eingesetzt werden. Im Vergleich zu einer konventionellen Lagerung mit Wälzlagern ist der Vibrationsantrieb 1 geräuscharm. Die Konstruktion kann platzsparend ausgeführt werden. Die Gleitlager 3,7 nehmen sowohl Antriebs- als auch Fliehkräfte auf.Characterized in that for the storage of the shafts 4, 8 of the vibration drive 1 exclusively plain bearings 3.7 are used, the vibration drive 1 can withstand high loads and it can be used high speeds. Compared to a conventional bearing with rolling bearings, the vibration drive 1 is quiet. The construction can be carried out to save space. The plain bearings 3.7 take on both drive and centrifugal forces.

Dadurch, dass die Gleitlager 3,7 mit dem gleichen Öl wie die Zahnräder 5,9 versorgt werden, ist der Vibrationsantrieb 1 besonders platzsparend ausgeführt. Diese Art der Ölversorgung ist bei Systemen mit vorliegender Hydraulik besonders effektiv.Characterized in that the plain bearings are 3.7 supplied with the same oil as the gears 5.9, the vibration drive 1 is designed to save space. This type of oil supply is particularly effective in systems with existing hydraulics.

Figur 3 zeigt einen Vibrationsantrieb 1, der zweiseitig gelagert ist. Dieser Vibrationsantrieb 1 ist nicht nur dadurch gelagert, dass die erste Welle 4 in die Antriebswelle 11 übergeht, sondern die erste Welle 4 ist auch auf der der Antriebswelle 11 gegenüberliegenden Seite des Gehäuses 2 aus dem Gehäuse 2 herausgezogen und durch einen Bolzen 18 fest aufgenommen. In Verlängerung hierzu ist ein weiteres Fahrlager 15 vorhanden. Der Vibrationsantrieb 1 ist in Bezug auf die weitere Bauart mit der Ausführungsform aus Fig. 2 vergleichbar, so dass hier entsprechend Bezug auf die vorhergehenden Ausführungen genommen wird. Das Erregerlager 23 ist auch hier als Gleitlager 3 ausgebildet, in dem das Gehäuse 2 im Vibrationsbetrieb die Achse R umläuft. Auch hier sind die Fahrlager 15 und das Erregerlager 23 somit räumlich getrennt. FIG. 3 shows a vibration drive 1, which is mounted on two sides. This vibratory drive 1 is not only stored by the fact that the first shaft 4 merges into the drive shaft 11, but the first shaft 4 is also pulled out of the housing 2 on the opposite side of the drive shaft 11 and firmly held by a pin 18. In extension to this, another drive bearing 15 is present. The vibratory drive 1 is with respect to the further construction with the embodiment of Fig. 2 comparable, so that reference is made here to the previous statements. The excitation bearing 23 is also formed here as a sliding bearing 3, in which the housing 2 rotates in the vibration mode, the axis R. Again, the driving bearings 15 and the exciter bearing 23 are thus spatially separated.

Durch diese zweiseitige Lagerung ist der Vibrationsantrieb 1 besonders zuverlässig gelagert.Through this two-sided storage of the vibratory drive 1 is mounted very reliable.

Figur 4 zeigt einen Vibrationsantrieb 1, der mittels einer Anschraubplatte 19 stirnseitig auf der Bandagenhalterung 14 befestigt ist. Diese Anschraubplatte 19 weist eine ebene Anschraubfläche 20 und einen geraden Leckölanschluss 21 auf. FIG. 4 shows a vibratory drive 1, which is fastened by means of a screw-on 19 frontally on the drum support 14. This Anschraubplatte 19 has a flat mounting surface 20 and a straight leak oil connection 21.

Auf der der Anschraubplatte 19 gegenüberliegenden Seite des Vibrationsantriebs 1 ist ein Bügel 22 vorhanden, in dem ein verlängerter Teil der ersten Welle 4 aufgenommen ist. Dieser Bügel 22 erstreckt sich in Richtung der Anschraubplatte 19, so dass sich sein Schwerpunkt im Bereich der Lagerung befindet.On the opposite side of the mounting plate 19 of the vibration drive 1, a bracket 22 is provided, in which an extended part of the first shaft 4 is received. This bracket 22 extends in the direction of the mounting plate 19, so that its center of gravity is in the storage area.

Dadurch kann einerseits der Vibrationsantrieb 1 sicher aufgenommen werden, ohne die Antriebswelle 11 zusätzlich zu belasten, andererseits ermöglicht der Bügel 22 die Anbringung des Vibrationsantriebs 1 an einer Seite, so dass Bauräume besser ausgenutzt werden können.As a result, on the one hand, the vibration drive 1 can be safely received without additionally loading the drive shaft 11, on the other hand, the bracket 22 allows the mounting of the vibration drive 1 on one side, so that space can be better utilized.

Im Vibrationsbetrieb rotieren der Bügel und die erste Welle 4 um die Achse R in mit den vorstehenden Ausführungen vergleichbarer Weise, wobei der Bügel als Unwucht, vergleichbar mit dem Gehäuse 2, wirkt. Das Erregerlager 23 ist als Gleitlager 3 ausgebildet.In vibration mode, the yoke and the first shaft 4 rotate about the axis R in a manner comparable to the above, with the yoke acting as imbalance, comparable to the housing 2. The exciter bearing 23 is designed as a sliding bearing 3.

Es wird ein für den Antrieb deutlich zu großer Motor eingesetzt, der mit vermindertem Druck läuft. Hier wird ein Motor mit zulässigem Öldruck von 200 bar im Dauerbetrieb bei deutlich kleinerem Druck, z.B. 50 bar eingesetzt. Dadurch haben die Lager Spielraum für weitere radiale Belastungen und können die durch die Unwucht entstehenden Kräfte aufnehmen.It is used a much too large for the drive motor, which runs at reduced pressure. Here, a motor with permissible oil pressure of 200 bar in continuous operation at significantly lower pressure, eg 50 bar used. As a result, the bearings have room for further radial loads and can absorb the forces resulting from the imbalance.

Es können auch zwei Vibrationsantriebe 1 mit einander gekoppelt werden, die sich gegenläufig zueinander zu drehen. Durch eine entsprechende Regelung können die beiden Vibrationsantriebe derart angesteuert werden, dass eine gerichtete Amplitude und deren Richtungsänderung ähnlich wie von Rüttelplatten und bestimmten Walzen, wie beispielsweise Asphalt-Manager bekannt, möglich ist.It can also be coupled with each other two vibratory drives 1, which rotate in opposite directions to each other. By an appropriate control, the two vibration drives can be controlled such that a directed amplitude and their change in direction similar to vibrating plates and certain rollers, such as asphalt manager known, is possible.

Um die beiden Vibrationsantriebe ansteuern zu können, ist ein nicht gezeigtes Hydraulikventil vorhanden, durch das die Ölzufuhr gezielt beeinflussbar ist.In order to be able to control the two vibration drives, there is a hydraulic valve, not shown, through which the oil supply can be influenced in a targeted manner.

Ferner kann ein Hall-Sensor mit Magnetring zur Erfassung von Drehzahl und Lage einer Welle 4, 8 vorgesehen sein. Durch die Erfassung der aktuellen Drehzahl und Lage einer Welle 4, 8 kann die Vibration gezielter gesteuert werden.Furthermore, a Hall sensor with magnetic ring for detecting rotational speed and position of a shaft 4, 8 may be provided. By detecting the current speed and position of a shaft 4, 8, the vibration can be controlled more targeted.

Der Hallsensor kann dazu eingesetzt werden, die erfassten Daten an eine Anzeige und/oder an eine Software weiterzugeben. Der Bediener oder die Software kann dann aufgrund der erfassten Daten eine Anpassung der Ölzufuhr vornehmen.The Hall sensor can be used to pass the acquired data to a display and / or to a software. The operator or software can then adjust the oil supply based on the data collected.

Figur 5 zeigt Unwuchtmassen in den Wellen 25 eines Zahnradmotors 24 (mit abgenommenem Deckel). Diese Wellen 25 sind auf einer Seite massiv oder mit Unwuchtmasse 26 und auf der anderen Seite hohl ausgeführt. Im Betrieb erzeugen diese Wellen 25 dadurch, dass deren Massen nicht rotationssymmetrisch verteilt sind, Vibrationen. FIG. 5 shows imbalance masses in the shafts 25 of a gear motor 24 (with the cover removed). These shafts 25 are solid or unbalanced mass 26 on one side and hollow on the other side. In operation, these waves generate 25 in that their masses are not distributed rotationally symmetric vibrations.

Durch die Ausrichtung der Wellen 25 zueinander, kann die Vibration gezielt beeinflusst werden. Es kann eine gerichtete Amplitude erzeugt werden.By aligning the shafts 25 to each other, the vibration can be selectively influenced. A directional amplitude can be generated.

Auch diese Wellen 25 sind mit Gleitlagern 3 in einem Gehäuse 28 gelagert. Dadurch können hohe Drehzahlen gefahren werden, es können große Unwuchtmassen 26 vorgesehen werden und die Konstruktion ist platzsparend. Die Unwuchtmassen 26 sind bei diesem Ausführungsbeispiel somit Teil der Wellen 25. Jede Welle 25 weist ein eigenes als Gleitlager 3 ausgebildetes Erregerlager 23 zwischen der Welle und dem Gehäuse 28 auf. Die Wellen 25 rotieren im Vibrationsbetrieb dabei um die Wellen R1 und R2. Die Drehachse R3 der Bandage 33 ist parallel dazu und verläuft von den Erregerlagern 23 getrennt durch das Fahrlager 15.These shafts 25 are mounted with plain bearings 3 in a housing 28. As a result, high speeds can be driven, large imbalance masses 26 can be provided and the construction is space-saving. The unbalanced masses 26 are thus part of the shafts 25 in this embodiment. Each shaft 25 has its own trained as a slide bearing 3 exciter bearing 23 between the shaft and the housing 28. The shafts 25 rotate in vibration while the waves R1 and R2. The axis of rotation R3 of the bandage 33 is parallel thereto and extends from the exciter bearings 23 separated by the driving bearing 15th

Wesentlich für die Erfindung ist somit zusammenfassend, dass das Erregerlager 23 bei den verschiedenen Ausführungsformen als Gleitlager ausgebildet ist.Essential for the invention is thus summarized that the excitation bearing 23 is formed in the various embodiments as a sliding bearing.

Claims (11)

  1. A compacting machine having a shaft (4, 8), an unbalanced mass, and a drum, the shaft (4, 8) being connected to both the unbalanced mass and the drum and being adapted to transfer imbalance forces from the unbalanced mass to the drum,
    characterized in that
    said shaft (4, 8) comprises at least one exciter bearing (23) in which the unbalanced mass rotates during vibration operation, that the exciter bearing (23) is arranged between the unbalanced mass and a component supporting the unbalanced mass, and that the exciter bearing (23) is a plain bearing (3, 7).
  2. The compacting machine according to claim 1,
    characterized in that
    the plain bearing (3, 7) is adapted to absorb imbalance forces and driving forces.
  3. The compacting machine according to any one of the preceding claims, characterized in that
    the compacting machine comprises a drive (1) according to the hydraulic geared engine principle, that the drive (1) comprises a housing (2) and a driving shaft (11) and is adapted to transfer vibration to the drum, and that the unbalanced mass forms part of the drive (1), in particular of the housing (2) and/or the driving shaft (11).
  4. The compacting machine according to claim 3,
    characterized in that
    the drive (1) comprises a first gear wheel (5), a second gear wheel (9), a first shaft (4) and a second shaft (8), that the first gear wheel (5) is connected to the first shaft (4) and the second gear wheel (9) is connected to the second shaft (8), that the first gear wheel (5) engages the second gear wheel (9), that the first shaft (4) is connected to the driving shaft (11), and the axis of the second shaft (8) is not in alignment with the axis of the driving shaft (11).
  5. The compacting machine according to any one of the preceding claims,
    characterized in that
    the drive (1), the shaft (4, 8) and the plain bearing (3, 7) are combined to form an assembly group.
  6. The compacting machine according to any one of the preceding claims 3 to 5,
    characterized in that
    a connection exists between a toothed gear system (6, 10) of the drive (1) and the plain bearing (3, 7), such that oil that can be used for the drive (1) of the hydraulic geared engine can also be passed on to the plain bearing (3, 7) and thus be employed for lubrication of the bearings.
  7. The compacting machine according to any one of the preceding claims,
    characterized in that
    the space in which the plain bearing (3, 7) is disposed is capable of being completely filled with oil.
  8. The compacting machine according to any one of the preceding claims,
    characterized in that
    the space in which the plain bearing (3, 7) is disposed comprises both an inlet duct (16) and an outlet duct (17), such that the plain bearing (3, 7) is adapted to be located in a flow of oil and heat from the plain bearing (3, 7) can be dissipated via the flow of oil.
  9. The compacting machine according to any one of the preceding claims,
    characterized in that
    the compacting machine comprises two or more shafts (4, 8) of which the rotational speed and/or position can be controlled, so that a direction of vibration can be set.
  10. The compacting machine according to claim 9,
    characterized in that
    a detector (23) and a display device are provided, the detector (23) being adapted to detect and forward to the display device the position and/or the rotational speed of a shaft (4, 8).
  11. The compacting machine according to claim 10,
    characterized in that
    software is provided which is adapted to process the position and/or rotational speed detected by said detector (23) and to control the drives (1) accordingly.
EP13005616.1A 2012-12-10 2013-12-03 Compacting machine Active EP2740846B1 (en)

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WO2002044475A1 (en) * 2000-11-29 2002-06-06 Hamm Ag Compactor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111576386A (en) * 2020-05-29 2020-08-25 陈红 Earth ramming device for road construction
CN111576386B (en) * 2020-05-29 2021-12-17 陈红 Earth ramming device for road construction

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US8961066B2 (en) 2015-02-24
US20140161529A1 (en) 2014-06-12
JP2014139397A (en) 2014-07-31
EP2740846A1 (en) 2014-06-11
DE102012024104A1 (en) 2014-06-12
JP6433654B2 (en) 2018-12-05

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