EP4234813B1 - Compacteur de sol avec rouleau compacteur et module oscillant - Google Patents

Compacteur de sol avec rouleau compacteur et module oscillant

Info

Publication number
EP4234813B1
EP4234813B1 EP23178851.4A EP23178851A EP4234813B1 EP 4234813 B1 EP4234813 B1 EP 4234813B1 EP 23178851 A EP23178851 A EP 23178851A EP 4234813 B1 EP4234813 B1 EP 4234813B1
Authority
EP
European Patent Office
Prior art keywords
oscillation
mass
roller
carrier
belt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP23178851.4A
Other languages
German (de)
English (en)
Other versions
EP4234813A2 (fr
EP4234813A3 (fr
Inventor
Peter Janner
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.)
Hamm AG
Original Assignee
Hamm AG
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
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Publication of EP4234813A2 publication Critical patent/EP4234813A2/fr
Publication of EP4234813A3 publication Critical patent/EP4234813A3/fr
Application granted granted Critical
Publication of EP4234813B1 publication Critical patent/EP4234813B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • E01C19/23—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
    • B06B1/166—Where the phase-angle of masses mounted on counter-rotating shafts can be varied, e.g. variation of the vibration phase

Definitions

  • the present invention relates to a soil compactor with at least one compaction roller having at least one oscillation module.
  • a compaction roller can be periodically accelerated up and down to generate a so-called vibration state, essentially vertically, i.e., in a direction essentially orthogonal to the surface of the subsoil being compacted.
  • a so-called oscillation state an oscillating torque can be applied to the compaction roller, periodically acting back and forth around its axis of rotation in the circumferential direction.
  • a soil compactor with a compaction roller in which such an oscillation state can be induced is from the EP 2 504 490 B1 known and is Fig. 1
  • This known soil compactor 10 comprises two compaction rollers 12, 14 rotatable about respective roller rotation axes A1 , A2 . At least one of these compaction rollers 12, 14, for example the compaction roller 12, is designed as a so-called oscillating roller and includes in the interior enclosed by a roller shell 16 a Fig. 2
  • the illustrated oscillation arrangement 18 comprises a total of four oscillation mass units 20, 22, 24, 26. These oscillation mass units 20, 22, 24, 26 are arranged in pairs opposite each other with respect to the roller rotation axis A1 , i.e., at an angular distance of 180°.
  • All oscillation mass units 20, 22, 24, 26 are driven by a common drive shaft 28 and a common oscillation drive motor (not shown) to rotate about their respective oscillation axes O, which are parallel to the roller rotation axis A1 . Due to the The common drive generates in phase each of the pairs of oscillation mass units 20, 22 and 24, 26 arranged at axial distances in the direction of the roller rotation axis A 1 an oscillation torque which periodically acts on the roller shell 16 in the circumferential direction around the roller rotation axis A 1 .
  • Each of the essentially identical oscillation mass units 20, 22, 24, 26 comprises two unbalanced masses 32 on a respective oscillation shaft 30, which are rotatable about the respective oscillation axis O.
  • Each oscillation shaft 30 is rotatably supported at its two axial end regions by bearing discs 34, 36 on a support structure, for example a so-called disc, located inside the compressor roller 12 and rigidly connected to the roller shell 16.
  • the common drive shaft 28 is also rotatably supported by bearing discs 38 on, for example, the same support structure(s) as the unbalanced shafts 30.
  • a pulley 40 or 42 is provided on the common drive shaft 28 and on the respective unbalanced shaft 30, respectively, in association with each oscillation mass unit 20, 22, 24, 26.
  • the unbalance shafts 30 are driven to rotate about their respective oscillation axis O via a belt 44, for example a toothed belt, which interacts with them.
  • the paired oscillation mass units 20, 22 and 24, 26 rotate in opposite phases to each other in order to generate an oscillation torque in the circumferential direction around the roller rotation axis A 1 for each pair of oscillation mass units 20, 22 and 24, 26, which periodically acts on the compressor roller 12 and the roller shell 16 of the same in opposite circumferential directions.
  • oscillation module The structure of an oscillation module is derived from the US 9 574 311 B1
  • This oscillation module comprises a plate-like support arranged in an axially central region of a compressor roll and connected to the inner surface of a sleeve of the compressor roll.
  • Two oscillation mass units each with an unbalanced mass rotatably mounted in a respective oscillation mass housing, are mounted on the support and offset radially outwards with respect to a roll rotation axis.
  • the unbalanced masses are arranged in a configuration where each is coupled via a belt to one of the two axial ends of a transmission shaft.
  • the transmission shaft is rotatably supported in a housing-like transmission bearing hub.
  • the transmission bearing hub is positioned with its circumferential wall in a mounting opening centrally located in the support. At the axial ends of the circumferential wall, bases are mounted on it, through which the transmission shaft passes. These bases, via bearings, rotatably support the transmission shaft near its axial ends.
  • the transmission shaft is coupled to a rotor of an oscillation drive motor via an unbalanced drive shaft and can thus be driven to rotate by the motor.
  • a soil compactor according to the preamble of claim 1 is made from the US 4 927 289 A known.
  • an oscillation module designed as a separate assembly is arranged vertically directly above the compactor roller on a support frame of the soil compactor which rotatably carries a compactor roller.
  • the object of the present invention is to propose a soil compactor with at least one compaction roller which can be subjected to oscillation by structurally simple measures.
  • a soil compactor according to claim 1.
  • This comprises at least one compactor roller rotatable about a roller rotation axis with at least one oscillation module.
  • the at least one compressor roll comprises a roll shell enclosing an interior space, wherein, in association with the at least one oscillation module, a support structure, preferably disc-like, for example, a disc, which is rotationally fixed to the roll shell, is provided in the interior space.
  • connection assembly on an outer circumferential area of the support includes a plurality of connecting bolt through-holes.
  • the support is fixed to the associated support structure by connecting bolts designed as screw bolts that extend through the connecting bolt through-holes of the connection assembly.
  • an oscillation module Due to the modular design of an oscillation arrangement, it becomes possible to integrate such an oscillation arrangement, referred to as an oscillation module, as a pre-assembled unit into a compressor drum. This is achieved, for example, by defining the connection configuration of the oscillation module's support structure on an associated support structure within the interior of the compressor drum. This eliminates the need for further work to integrate individual components of an oscillation arrangement into the interior of the compressor drum. This not only simplifies the process of installing such a modularly provided oscillation arrangement into the interior but also simplifies the structure of the entire compressor drum itself, since... The interior must not contain any individual components or system areas of an oscillation arrangement that can be accommodated or, for example, rotatably supported components.
  • At least one, preferably each, oscillation mass unit comprises an unbalanced mass bearing projection supported on the carrier and at least one unbalanced mass rotatably mounted on the unbalanced mass bearing projection about the oscillation axis, or/and that at least one, preferably each, oscillation mass unit comprises an unbalanced mass with an unbalanced shaft rotatably mounted on the carrier about an oscillation axis.
  • the unbalanced mass bearing projection is supported on the support in its first axial end region and is cantilevered in its second axial end region. Further stabilization can be achieved by supporting the unbalanced mass bearing projection on the support in its first axial end region in at least one, preferably each, oscillating mass unit, and in its second axial end region, supporting it with respect to the unbalanced mass bearing projection of at least one other oscillating mass unit or with respect to the support.
  • At least one, preferably each, unbalance mass is rotatably supported on the associated unbalance mass bearing projection, for example in the region of its second axial end region, by an unbalance mass bearing, wherein the unbalance mass bearing comprises an inner bearing ring supported on or provided by the unbalance mass bearing projection and an outer bearing ring supported on or provided by the unbalance mass.
  • the oscillation mass units designed according to the invention thus do not comprise unbalance shafts that are rotatably supported and that support or provide the unbalance masses, but rather unbalance masses rotatably supported on an unbalance mass bearing projection acting as a bearing journal.
  • At least one, preferably each, unbalance mass comprises an unbalance mass ring body rotatably mounted on the associated unbalance mass bearing projection and at least one unbalance mass element provided on the unbalance mass ring body.
  • an imbalance element be arranged on at least one, preferably each, axial end face of the imbalance ring body of at least one, preferably each, imbalance mass, and preferably detachably connected to the imbalance ring body.
  • an imbalance element can be connected to the imbalance ring body by screwing, so that the imbalance moment of the imbalance masses can be easily adjusted for different configurations of a compressor roller.
  • a reliable drive interaction that does not substantially restrict the positioning of the oscillating mass units with respect to the oscillating drive motor can be provided, for example, by making at least one, preferably each, unbalanced mass rotatable by means of a belt drive via the oscillating drive motor.
  • the belt drive can comprise, in association with at least one, preferably each, unbalanced mass on the oscillation drive motor, a belt drive pulley rotatable about a drive axis, preferably a toothed pulley, on the unbalanced mass a belt output pulley, preferably a toothed pulley, and a belt, preferably a toothed belt, cooperating with the belt drive pulley and the belt output pulley.
  • a particularly simple design can be achieved by having the unbalance mass ring body provide the belt drive pulley for at least one, preferably each, unbalance mass. Furthermore, such a simple design can be achieved by equipping the belt drive pulley with at least two belts for driving at least two unbalance masses of different types. Oscillation mass units interact, wherein the belt drive pulley has successive belt interaction areas for interaction with the belts in the direction of the drive rotation axis.
  • the unbalanced mass ring bodies each providing a belt output pulley, can be identical in construction, which allows the use of identical parts, and/or can be positioned in the same axial area in the direction of the drive axis of rotation, so that on the one hand an easy-to-implement drive interaction with the oscillation drive motor can be ensured, and on the other hand the formation of tilting moments is avoided.
  • a belt tensioning roller be provided in association with at least one, preferably each, belt, preferably wherein at least one belt tensioning roller increases a circumferential interaction length between the belt and the belt drive pulley and/or belt output pulley interacting with it.
  • the oscillation drive motor can comprise a motor housing mounted on the support, positioned essentially on a first axial side of the support, and a motor shaft passing through an opening in the support and interacting with the oscillation mass units on a second axial side of the support.
  • This ensures an axially compact and stable design for the entire module, as its system components are distributed across both axial sides of the plate-like support.
  • the oscillation mass units are arranged on the second axial side of the support.
  • the oscillation drive motor can be mounted on the support via a roller drive motor.
  • the opening on the second axial side of the support be in the A housing, preferably teardrop-shaped, is arranged around a support, allowing the motor shaft of the oscillation drive motor to be rotatably mounted.
  • the housing can be fixed to the support together with the roller drive motor.
  • at least one, preferably each, belt tensioning pulley can be mounted on this housing.
  • a structure of the oscillation mass units protected against external influences can provide that at least one, preferably each, oscillation mass unit comprises an oscillation mass housing with a circumferential wall received in an opening of the support and a base rotatably supporting an unbalance mass at both axial end regions of the circumferential wall.
  • a drive axis of rotation of the oscillation drive motor and the oscillation axes of rotation of at least two oscillation mass units are parallel to each other and/or lie in a common plane.
  • a stable, yet easily implemented connection of the oscillating mass units to the support can be achieved, for example, by ensuring that at least one, preferably each, unbalance mass bearing projection is fixed to the support by a plurality of fastening elements, or/and that at least one, preferably each, unbalance mass bearing projection is formed integrally with the support.
  • two oscillation modules be arranged in the compressor roll at a distance from each other in the direction of the roll's axis of rotation.
  • At least one compressor roll can be a split compressor roll with successive compressor roll sections in the direction of the roll's axis of rotation, wherein at least one oscillation module is arranged in each compressor roll section.
  • at least one compressor roll can be a The compressor roll shall be an undivided unit, wherein an oscillation module is preferably arranged in each axial end region of the compressor roll such that it is substantially completely axially covered by a roll shell of the compressor roll in the direction of the roll rotation axis.
  • the Figs. 3 to 5 show a first design type of an oscillation module, which is used in a soil compactor, for example the soil compactor of the Fig. 1 , can be integrated into at least one of the two compressor rollers 12, 14 of the same.
  • the oscillation module generally designated 50, comprises a plate-like support 52 made of metal material, preferably sheet metal, cast material or the like, with, as the Fig. 4 and 5 This is clearly shown by the generally elongated or rounded rectangular circumferential contour. A round, e.g., circular, circumferential contour of the support 52 can also be provided.
  • a connection formation generally designated 54, is provided in the outer circumferential region of the plate-like support 52. This comprises a plurality of connecting bolt through-openings 56 arranged at intervals along the outer circumference of the plate-like support 52.
  • connecting bolts for example, screw bolts, passing through these connecting bolt through-openings 56, the oscillation modulus 50 can be fixed in a compressor roller in a manner described below.
  • an oscillating drive motor 58 designed, for example, as a hydraulic motor or alternatively as an electric motor, is provided.
  • the oscillating drive motor 58 comprises a motor housing 62, which is essentially supported or positioned on a first axial side 60 of the support 52.
  • the motor housing 62 is supported by means of a connecting element 61 on a non-rotating section 63 of a roller drive motor, generally designated 65 and designed in particular as a hydraulic motor.
  • a rotating section 67 of the roller drive motor 65 is arranged in the area of a central opening 64 of the support 52 and is fixed to the support 52 by screw bolts 69.
  • the roller drive motor 65 with its non-rotating section 63 and its rotating section 67, thus forms a section of the motor housing 62 of the oscillation drive motor 58 with respect to the support functionality provided for the oscillation drive motor 58.
  • the oscillation drive motor 58 can be connected directly or via a section of the motor housing 62 which assumes the support functionality of the roller drive motor 65 to the support 52.
  • a motor shaft 66 of the oscillation drive motor 58 extending in the direction of a drive axis of rotation A and passing through a central opening 71 of the roller drive motor 65 and the central opening 64 in the carrier 52, lies with its free end region essentially against a second axial side 68 of the carrier 52 and carries there a belt drive pulley 70, preferably designed as a toothed pulley, of a belt drive generally designated 72.
  • the motor shaft 66 can be connected to a rotor of the oscillation drive motor 58, which projects from the motor housing 62 and is rotatably mounted therein, for common rotation or can be integrally formed with it.
  • oscillation mass units 74, 76 are provided on the support 52, positioned opposite each other and at essentially the same distance from the drive axis A.
  • Oscillation mass units 74, 76 preferably have the same basic structure, so that their structure is described below with reference to both oscillation mass units 74, 76 in the same way.
  • Each of the two oscillation mass units 74, 76 comprises an unbalance mass bearing projection 78, which is fixed in its first axial end region 80 to the support 52, in particular to its second axial side 68, by a plurality of fastening elements 82, for example, screw bolts.
  • the bearing projection 78 can have a positioning projection in the first axial end region 80 that engages in a corresponding positioning recess of the support 52.
  • Each unbalance mass bearing projection 78 which provides a substantially cantilevered or freestanding bearing journal, carries an unbalance mass 86 rotatably about a respective oscillation axis of rotation O in its second axial end region 84.
  • Each unbalance mass 86 comprises an unbalance mass ring body 88, which is rotatably supported on the unbalance mass bearing projection 78 by means of an unbalance mass bearing 90.
  • the unbalance mass bearing 90 comprises an inner bearing ring 94, which is fixed to the second axial end region 84 of the unbalance mass bearing projection 78 by a fixing plate 92, and an outer bearing ring 98, which is rotatably mounted on the inner bearing ring 94, for example, by a plurality of rolling elements, such as balls or rollers 96.
  • the outer bearing ring 98 is fixed to the unbalance mass ring body 88 by a fixing element 100, so that the unbalance mass ring body 88 is held in a defined axial direction with respect to a respective oscillation axis O at the respective associated unbalance mass bearing projection 78.
  • Fig. 3 It is clearly evident that, due to their identical design, the two unbalance masses 86 or their unbalance mass ring bodies 88 are axially aligned with each other, i.e., positioned in the same axial area.
  • Each unbalance mass ring body 88 is designed as a toothed pulley and thus provides a respective belt drive pulley 102.
  • the belt drive 72 comprises one belt 104, 106 for each unbalance mass 86, with the two belts 104, 106 oriented towards each other in the direction of the drive axis of rotation A.
  • the belts 104 and 106 are positioned offset or side by side, such that each belt interacts with, or is guided around, its respective belt interaction area 108 or 110 of the belt drive pulley 70. This results in the belts 104 and 106 interacting with the associated belt output pulleys 102 and unbalanced mass ring bodies 88 in axially offset areas. Since the belt output pulleys 102, as well as the belt drive pulley 70, are designed as toothed pulleys, the belts 104 and 106 are preferably designed as toothed belts for a defined drive interaction.
  • a belt tensioning roller 112 and 114 is provided for each belt.
  • the belt tensioning rollers 112 and 114 are located radially with respect to the drive axis of rotation A, essentially between the drive axis of rotation A and the respective oscillation axes of rotation O, and are offset from each other in opposite directions with respect to a plane containing the drive axis of rotation A and the two oscillation axes of rotation O.
  • the two belt tensioning rollers 112, 114 rotatably mounted on the carrier 52, not only maintain a defined tension on the belts 104, 106, but also ensure that, because the respective belt tensioning rollers 112, 114 press the belt sections running between the belt drive pulley 70 and the respective belt output pulley 102 towards each other, the degree of wrap of the belts 104, 106 is increased both around the belt drive pulley 70 and around the respective belt output pulley 102. This results in improved drive interaction due to a correspondingly larger or longer tooth engagement area. It should be noted that, in principle, an arrangement of the belt tensioning rollers 112, 114 is also possible in which the belt sections running between the respective pulleys are tensioned away from each other instead of towards each other. However, due to the increased degree of wrap and the compact design, the configuration shown in the figures is particularly advantageous.
  • Each of the unbalance masses 86 preferably comprises an unbalance mass element 116, 118, which may be constructed, for example, with two parts, on both axial sides of the unbalance mass ring body 88.
  • the two unbalance mass elements 116, 118 are, for example, firmly connected to each other and to the respective associated unbalance mass ring body 88 by means of screw bolts 120 and ensure that the center of mass of each unbalance mass 86 is eccentric to the respective oscillation axis O, so that an unbalance moment is generated when the unbalance mass 86 rotates about the associated oscillation axis O.
  • At least one of the unbalance mass elements 116, 118, or a part thereof, could also be integrally formed with the associated unbalance mass ring body 88, i.e., as a single piece.
  • the two unbalanced masses 86 are generally positioned in opposite phase to each other. This means that, as for example in Fig. 3 As shown, in an assembly position, i.e., a state in which the module 50 or its system components are assembled, the centers of mass of the two unbalanced masses 86 have a minimal distance from each other. This necessitates that the respective unbalanced mass elements 118, 116 of the two unbalanced masses 86 also have a minimal distance from each other and thus also a minimal distance to the drive axis of rotation A.
  • a pin-like assembly aid element 122 can be provided, which extends through corresponding openings in the unbalanced mass elements 116, 118 and engages in a corresponding opening in the carrier 52. This ensures that the two unbalanced masses 86 assume a defined position relative to each other when the two belts 104, 106 are placed around them or around the belt drive pulley 70. Once this has been done, the mounting aids 122 can be removed, i.e., pulled out of the openings that receive them, so that the two unbalance masses 86 can rotate about their respective oscillation axis O, driven by the oscillation drive motor 58 can rotate.
  • the two unbalanced masses 86 rotate in the same direction, but out of phase with each other and also in the same direction with the belt drive pulley 70, thereby generating the aforementioned oscillation torque oriented around the drive axis A, i.e. a torque with a periodically reversing direction of action around the drive axis A.
  • the Fig. 6 Figure 1 shows the integration of such an oscillation module 50 into a compaction roller, for example the compaction roller 12 of the soil compactor 10.
  • a compaction roller for example the compaction roller 12 of the soil compactor 10.
  • a support structure 126 which can also be generally referred to as a disc, is provided, fixed to the roller shell 16 by welding.
  • the support structure 126 visible in axial view, has an elongated opening 128 adapted to the outer circumferential contour of the support 52 of the oscillation module 50, into which the oscillation module 50 can be inserted from the axial end region 129 of the roller shell 16.
  • a plurality of connecting bolts 130 designed as screw bolts, which connect the Fig. 5
  • the support 52 is fixed in a defined position on the support structure 126.
  • the support 52 and the support structure 126 can each have axially offset positioning areas 132, 134 in their overlapping edge regions.
  • the positioning of the oscillation module 50 in the compaction roller 12 is preferably such that, in the direction of the roller's axis of rotation A1 , which corresponds to the drive axis A of the oscillation drive motor 58, the oscillation drive motor 58 is essentially completely enclosed within the interior 124, i.e., it does not protrude substantially beyond the roller shell 16 in the direction of the roller's axis of rotation A1 . This avoids any disruptive interaction with the frame components of the soil compactor 10 that rotatably support the compaction roller 12.
  • the modular design makes it possible to mount the entire oscillation module 50 before integrating it into a compressor drum, especially those system components located on the second axial side 68 of the carrier 52, which are difficult to access within the interior 124.
  • the entire module can be pre-assembled, inserted into the compressor drum 12, and secured to it. Further assembly steps for attaching other system components of an oscillation arrangement provided by the oscillation module 50 inside the compressor drum 12 are generally not required.
  • the modular design also makes it possible, for example, to generate different unbalance moments or oscillation torques by selecting the mass and/or shape of the respective unbalance mass elements to adapt to different sizes of compressor rollers. This further enhances the modularity, as identical parts can be used to equip compressor rollers of different dimensions. This also applies to the construction of each oscillation module 50 itself, since identical components can be used in each of the unbalance mass units 74, 76.
  • the figure illustrates, in a schematic representation, the equipment of a compressor roll 12 with two oscillation modules 50 constructed according to the invention. These are each located near the axial end regions 129, 136 of the roll shell 16 as described above with reference to the Fig. 6 positioned in the manner described.
  • Each of the two oscillation modules 52 can be operated independently of the other oscillation module, so that each oscillation module 50 can generate an oscillation torque that is freely adjustable in its phase relative to the other module and also in its frequency.
  • the phase angle of the oscillation torques generated by the two oscillation modules 50 it becomes possible to achieve a destructive or a constructive superposition of the two oscillation torques, so that the total oscillation torque generated by the superposition can be varied on the one hand with regard to its amplitude, namely by changing the phase angle of the two oscillation torques generated by the oscillation modules 50, 52, and on the other hand also in its frequency independently of the amplitude of the total oscillation torque, by varying the speed of the respective oscillation drive motor 58 of the two oscillation modules 50 accordingly.
  • FIG. 9 An example of an undivided compressor roller 12 shows the Fig. 9 a split compressor roll 12' with two compressor roll sections 12a' lying side by side in the direction of the roll rotation axis A 1 ' and 12b'.
  • These two compressor roll sections 12a' and 12b' which together provide a split compressor roll 12', are each equipped with an oscillation module 50, so that an oscillation torque can be generated independently of the other compressor roll section in each of the two compressor roll sections 12a', 12b'.
  • Figs. 10 to 13 Various variations of an oscillation module are described, all of which are fundamentally based on the same previously described structural concept.
  • Figs. 10 to 13 are for components or system areas which were previously discussed with reference to the Figs. 3 to 9
  • the described components or system areas correspond to the same reference symbols.
  • FIG. 10 and 11 Figure 1 shows an embodiment of an oscillation module 52 in which, to increase stiffness and stability, the two unbalance mass bearing projections 78 are supported relative to each other in their second axial end regions 84 by means of a support body 138, for example designed as a U-profile beam.
  • the unbalance mass bearing projections 78 which are essentially cantilevered with respect to the beam 52, are thus supported against each other at their free ends, so that even at comparatively high rotational speeds and thus large unbalance moments generated in the area of each oscillation mass unit 74, 76, a wobbling motion of the unbalance mass bearing projections 78 in the area of their respective unbalance masses 86 rotatably supporting second axial end regions 84 is avoided.
  • the unbalance mass bearing projections 78 can be extended in their second axial end regions 84 to ensure that sufficient installation space is available for the free rotation of the unbalance mass elements 116 positioned away from the support 52. Nevertheless, even in this embodiment, it can be said that the unbalance masses 56 are rotatably supported on the unbalance mass bearing projections 78 essentially in their second axial end regions 84. In a modification of this embodiment, at least one The unbalance mass bearing projection 78 in its second axial end region 84 is supported by a support body with respect to the carrier 52.
  • the Fig. 12 Figure 1 shows an embodiment of an oscillation module 50 integrated into a compressor roller 12, in which the basically plate-like support 52 can have a three-dimensional shape and is manufactured, for example, as a cast component, whereas, for example, in the previously described embodiments, the support 52 can be designed as a stamped or cut-out component.
  • the unbalance mass bearing projections 78 of the two oscillation mass units 74, 76 are integrally formed with the support 52, i.e., as a single piece, thus forming a single block of material. This increases stability and eliminates the need for assembly operations of the unbalance mass bearing projections 78 onto the support 52.
  • the Fig. 12 It is evident that, when manufactured as a cast component, it is relatively easy to give the support 52 a three-dimensionally shaped structure, so that its connection formation 54 to be joined with the support structure 126, or the outer circumferential region of the support 52, can be axially offset with respect to the region in which the housing 62 of the oscillation drive motor 58 is fixed to the support 52. This allows the essential system areas of the oscillation module 50 to be shifted further inwards in the direction of the roller rotation axis A 1 , even though the support structure 126 is positioned relatively close to the axial end region 129 of the roller shell 16.
  • Such a three-dimensional shape of the carrier 52 is also fundamentally possible in the preceding with reference to the Figs. 3 to 5
  • the described structure is feasible, for which, for example, the initially flat, i.e., essentially planar, support 52 is subjected to a corresponding deformation.
  • Such a three-dimensionally shaped support 52 could also be provided by assembling several individual parts, which can be connected to each other, for example, by welding and/or bolting or the like.
  • the Fig. 13 Figure 1 shows another alternative embodiment of an oscillation module 50 constructed with two unbalance mass units 74, 76.
  • the two oscillation mass units 74, 76 each have an unbalance mass 86 formed with an unbalance shaft 140.
  • the unbalance shaft 140 is rotatably supported in one axial end region 142 on the support 52, which is provided, for example, as a cast component, by means of an unbalance mass bearing 144, and is rotatably supported in its other axial end region 146 on a cover- or plate-like support body 150 by means of an unbalance mass bearing 148.
  • the carrier 52 can have a pot-shaped form 152, which can be closed off by the support body 150 in the area of the second axial end region 146 of the unbalance shaft 140.
  • a belt output pulley 154 is connected to the unbalance shaft 140 in the region of the first axial end section 142.
  • This pulley is connected to the belt drive pulley 70 via a belt 104 (only indicated in principle), while the unbalance mass 86 of the other oscillation mass unit 76 is connected to the belt drive pulley 70 in a similar manner via a belt output pulley 156 and the belt 106.
  • the belt drive pulley 70 in turn, can be supported at a greater axial distance from the housing 62 of the oscillation drive motor 58 on a shaft 158, which extends or continues the motor shaft of the oscillation drive motor 58 or is itself provided by the motor shaft.
  • the modular character is also achieved, since all system areas of an oscillation module 50 can be provided on the plate-like support 52 and together with it can be arranged in the interior 124 of the compressor roller 12 and fixed to the support structure 126.
  • FIG. 14 Another alternative embodiment of an oscillation mode constructed with two unbalance mass units 74, 76 is described in Fig. 14 depicted. Also in the case of the one in Fig. 14 In the illustrated structure, the rotating section 67 of the roller drive motor 65 is arranged on the first axial side 60 of the support 52 in the area of the central opening 64. A cup-shaped housing 160 is arranged on the second axial side 68 of the support 52. This housing comprises a circumferential wall 162 surrounding the central opening 64. The screw bolts 69, which secure the rotating section 67 of the roller drive motor 65 to the support 52, are screwed into this circumferential wall 162, so that both the roller drive motor 65 and the cup-shaped housing 160 are connected to the support 52 by the screw bolts 69.
  • a base 164 of the cup-shaped housing 160 is provided, for example, formed integrally with it or fixed to it by screws.
  • the belt tensioning rollers are rotatably mounted on this cup-shaped base 164, of which in Fig. 14
  • the belt tensioning roller 112 is identifiable in the upper area in relation to the belt 104.
  • the motor shaft 66 which passes through the roller drive motor 65 in the area of its central opening 71, is rotatably mounted on the base 164 via a bearing 166. In the axial end region extending beyond the base 164 or the bearing 166, the motor shaft 66 carries the belt drive pulley 70.
  • Each of the two oscillating mass units 74, 76 is constructed with an oscillating mass housing 168, which is separate from the support 52 and fixed to it, for example, by bolting or welding.
  • Each oscillating mass housing 168 comprises a circumferential wall 170 fixed to the support 52 and two lid-like bottoms 172, 174 provided at the axial ends of the circumferential wall 170. These can be formed separately from the circumferential wall 170 and fixed to it, for example, by bolting. Alternatively, one of the bottoms 172, 174 could be integrally formed with the circumferential wall 170.
  • Each of the two bottoms 172, 174 is equipped with a respective unbalanced mass 86. with its unbalance shaft 140 rotatably supported via the unbalance mass bearings 144, 148.
  • the oscillation mass housings 168 are arranged in respective openings 176 of the carrier 52 approximately in an axial central region of the respective circumferential wall 170, such that the belt output pulleys 154, 156, which are carried on the unbalance shafts 140 in the region of their axial end regions 142, are positioned in the axial region of the belt drive pulley 70 and can be connected to it via the belts 104, 106 for common rotation.
  • the pot-shaped housing 160 can also be provided in a structurally different configuration.
  • the circumferential wall 162 can be provided with several axially extending webs, which are integrally formed with the base 164 and connected to the support 52 by the screw bolts 69.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Road Paving Machines (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Claims (16)

  1. Compacteur de sol comprenant au moins un rouleau de compactage (12, 14) pouvant tourner autour d'un axe de rouleau (A1, A2) avec au moins un module d'oscillation (50), dans lequel ledit au moins un rouleau de compactage (12) comprend une enveloppe de rouleau (16) renfermant un espace intérieur (124), et le module d'oscillation (50) comprend un support en forme de plaque (52), au moins deux unités de masse oscillante (74, 76) portées sur le support (52) à distance l'une de l'autre, chaque unité de masse oscillante (74, 76) comprenant une masse de balourd (86) supportée sur le support (52) de manière à pouvoir tourner autour d'un axe de rotation oscillant (O), et un moteur d'entraînement en oscillation (58) supporté sur le support (52), dans lequel le moteur d'entraînement en oscillation (58) peut entraîner chaque masse de balourd (86) de chaque unité de masse oscillante (74, 76) pour tourner autour de l'axe de rotation d'oscillation (O) associé respectif,
    caractérisé en ce que, en association avec ledit au moins un module d'oscillation (50) dans l'espace intérieur (126), une structure de support (126) reliée de manière fixe à l'enveloppe de rouleau (16) en rotation est prévue, qu'une formation de connexion (54) sur une zone circonférentielle extérieure du support (52) comporte une pluralité d'ouvertures traversantes pour boulons de connexion (56) afin de relier fermement le support (52) à la structure de support (126), et que le support (52) est fixé à la structure de support (126) qui lui est associée au moyen de boulons à vis (130) passant à travers les ouvertures traversantes pour boulons de connexion (56) de la formation de connexion (54).
  2. Compacteur de sol selon la revendication 1,
    caractérisé en ce qu'au moins une, de préférence chaque unité de masse oscillante (74, 76) comprend une saillie de palier de masse de balourd (78) supportée sur le support (52) et au moins une masse de balourd (86) supportée de manière rotative sur la saillie de palier de masse de balourd (78) autour de l'axe de rotation oscillant (O), et/ou en ce qu'au moins une, de préférence chaque unité de masse oscillante (74, 76) comprend de préférence une masse de balourd (86) avec un arbre de balourd (140) qui est supporté de manière rotative sur le support (52) autour d'un axe de rotation oscillant (O).
  3. Compacteur de sol selon la revendication 2,
    caractérisé en ce que dans au moins une, de préférence chaque unité de masse oscillante (74, 76), la saillie de palier de masse de balourd (78) est supportée sur le support (52) dans sa première zone d'extrémité axiale (80) et est autoportante dans sa deuxième zone d'extrémité axiale (84), et/ou dans au moins une, de préférence chaque unité de masse oscillante (74, 76), la saillie de palier de masse de balourd (78) est supportée sur le support (52) dans sa première zone d'extrémité axiale (80) et est supportée dans sa deuxième zone d'extrémité axiale (84) par rapport à la saillie de palier de masse de balourd (78) d'au moins une autre unité de masse oscillante (76, 74) ou par rapport au support (52), et/ou en ce qu'au moins une, de préférence chaque masse de balourd (86) sur la saillie de palier de masse de balourd associée (78) est supportée de manière rotative par un palier de masse de balourd (90), dans lequel le palier de masse de balourd (90) comporte une bague intérieure de palier (94) supportée sur la saillie de palier de masse de balourd (78) ou prévue par celle-ci et une bague extérieure de palier (98) supportée sur la masse de balourd (86) ou prévue par celle-ci.
  4. Compacteur de sol selon la revendication 2 ou 3,
    caractérisé en ce qu'au moins une, de préférence chaque masse de balourd (86) comprend un corps annulaire de masse de balourd (88) supporté de manière rotative sur la saillie de palier de masse de balourd associée (78) et au moins un élément de masse de balourd (116, 118) prévu sur le corps annulaire de masse de balourd (88),
    de préférence dans lequel un élément de masse de balourd (116, 118) est disposé sur au moins une, de préférence chaque masse de balourd (86) sur au moins une, de préférence les deux faces d'extrémité axiales du corps annulaire de masse de balourd (88) et est de préférence relié de manière amovible au corps annulaire de masse de balourd (88).
  5. Compacteur de sol selon l'une quelconque des revendications précédentes,
    caractérisé en ce qu'au moins une, de préférence chaque masse de balourd (86) peut être entraînée en rotation au moyen du moteur d'entraînement en oscillation (58) par un entraînement par courroie (72).
  6. Compacteur de sol selon la revendication 5,
    caractérisé en ce que la transmission par courroie (72), en association avec au moins une, de préférence chaque masse de balourd (86) sur le moteur d'entraînement en oscillation (58), comprend une poulie d'entraînement à courroie (70), de préférence une poulie dentée, qui peut tourner autour d'un axe de rotation d'entraînement (A), sur la masse de balourd (86), une poulie entraînée par courroie (102), de préférence une poulie dentée, et une courroie (104, 106), de préférence une courroie dentée, qui interagit avec la poulie d'entraînement à courroie (70) et la poulie entraînée par courroie (102).
  7. Compacteur de sol selon la revendication 4 et la revendication 6,
    caractérisé en ce qu'au moins une, de préférence chaque masse de balourd (86) du corps annulaire de masse de balourd (88), fournit la poulie entraînée par courroie (102),
    et/ou
    en ce que la poulie d'entraînement à courroie (70) interagit avec au moins deux courroies (104, 106) pour entraîner au moins deux masses de balourd (86) d'unités de masse oscillantes différentes (74, 76), la poulie d'entraînement à courroie (70) présentant des zones d'interaction successives (108, 110) pour interagir avec les courroies (104, 106) dans la direction de l'axe de rotation d'entraînement (A).
  8. Compacteur de sol selon la revendication 7,
    caractérisé en ce que les corps annulaires de masse de balourd (88) fournissant chacun une poulie entraînée par courroie (102) sont identiques les uns aux autres et/ou sont positionnés dans la même zone axiale dans la direction de l'axe de rotation d'entraînement (A).
  9. Compacteur de sol selon l'une quelconque des revendications 5 à 8,
    caractérisé en ce qu'en association avec au moins une, de préférence chaque courroie (104, 106), un rouleau tendeur de courroie (112, 114) est prévu, de préférence dans lequel au moins un rouleau tendeur de courroie (112, 114) augmente une longueur d'interaction circonférentielle entre la courroie (104, 106) et la poulie d'entraînement à courroie (70) et/ou la poulie entraînée par courroie (102) coopérant avec celle-ci.
  10. Compacteur de sol selon l'une quelconque des revendications précédentes,
    caractérisé en ce que le moteur d'entraînement en oscillation d'entraînement en oscillation (58) comprend un boîtier de moteur (62) supporté sur le support (52), positionné sensiblement sur un premier côté axial (60) du support (52), et un arbre moteur (66) qui pénètre dans une ouverture (64) du support (52) et interagit avec les unités de masse oscillantes (74, 76) dans une interaction d'entraînement sur un deuxième côté axial du support (52),
    de préférence dans lequel les unités de masse oscillantes (74, 76) sont disposées sur le deuxième côté axial (68) du support (52) et/ou le moteur d'entraînement en oscillation (58) est supporté sur le support (52) via un moteur d'entraînement à rouleaux (65).
  11. Compacteur de sol selon la revendication 10,
    caractérisé en ce que, sur le deuxième côté axial (68) du support (52), l'ouverture (64) dans le support (52) renfermant un boîtier de préférence en forme de pot (160) qui supporte de manière rotative l'arbre moteur (66) du moteur d'entraînement en oscillation (58) est disposée,
    de préférence dans lequel le boîtier (160) est fixé au support (52) avec le moteur d'entraînement à rouleaux (65).
  12. Compacteur de sol selon la revendication 9 et la revendication 11,
    caractérisé en ce qu'au moins un, de préférence chaque rouleau tendeur de courroie (112, 114) est supporté sur le boîtier (160).
  13. Compacteur de sol selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    au moins une, de préférence chaque unité de masse oscillante (74, 76) comprend un boîtier de masse oscillante (168) avec une paroi circonférentielle (170) logée dans une ouverture (176) du support (52) et, sur les deux zones d'extrémité axiales de la paroi circonférentielle (170), respectivement une base (172, 174) supportant de manière rotative une masse de balourd (86),
    et/ou
    en ce au'un axe de rotation d'entraînement (A) du moteur d'entraînement en oscillation (58) et les axes de rotation oscillants (O) d'au moins deux unités de masse oscillante (74, 76) sont parallèles entre eux et/ou se trouvent dans un plan commun (E).
  14. Compacteur de sol selon la revendication 2 ou l'une des revendications 3 à 13, si l'on se réfère à la revendication 2,
    caractérisé en ce qu'au moins une, de préférence chaque saillie de palier de masse de balourd (78) est fixée au support (52) par une pluralité d'éléments de fixation (82), et/ou en ce qu'au moins une, de préférence chaque saillie de palier de masse de balourd (78) est formée d'un seul tenant avec le support (52).
  15. Compacteur de sol selon l'une des revendications précédentes,
    caractérisé en ce que les boulons à vis (130) sont vissés dans des ouvertures filetées internes de la structure de support (126).
  16. Compacteur de sol selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la structure de support (126) est adaptée en forme de disque,
    et/ou
    deux modules d'oscillation (50) sont disposés à distance l'un de l'autre dans la direction de l'axe de rotation du rouleau (A1) dans le rouleau de compactage (12),
    et/ou
    en ce qu'au moins un rouleau de compactage (12') est un rouleau de compactage divisé (12') avec des sections de rouleau de compactage successives (12a', 12b') dans la direction de l'axe de rotation du rouleau (A1'), dans lequel au moins un module d'oscillation (50) est disposé dans chaque section de rouleau de compactage (12a', 12b'), et/ou en ce qu'au moins un rouleau de compactage (12) est un rouleau de compactage non divisé (12), dans lequel un module d'oscillation (50) est de préférence disposé dans chaque zone d'extrémité axiale (129, 136) du rouleau de compactage (12) de telle sorte qu'il est recouvert axialement de manière sensiblement complète par une enveloppe de rouleau (16) du rouleau de compactage (12) dans la direction de l'axe de rotation (A1) du rouleau.
EP23178851.4A 2017-09-27 2018-09-25 Compacteur de sol avec rouleau compacteur et module oscillant Active EP4234813B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017122370.3A DE102017122370A1 (de) 2017-09-27 2017-09-27 Oszillationsmodul
EP18782667.2A EP3688227B1 (fr) 2017-09-27 2018-09-25 Module d'oscillation
PCT/EP2018/075954 WO2019063540A1 (fr) 2017-09-27 2018-09-25 Module d'oscillation

Related Parent Applications (2)

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EP18782667.2A Division EP3688227B1 (fr) 2017-09-27 2018-09-25 Module d'oscillation
EP18782667.2A Division-Into EP3688227B1 (fr) 2017-09-27 2018-09-25 Module d'oscillation

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EP4234813A2 EP4234813A2 (fr) 2023-08-30
EP4234813A3 EP4234813A3 (fr) 2023-10-25
EP4234813B1 true EP4234813B1 (fr) 2026-02-18

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EP23178851.4A Active EP4234813B1 (fr) 2017-09-27 2018-09-25 Compacteur de sol avec rouleau compacteur et module oscillant

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EP (2) EP3688227B1 (fr)
JP (3) JP7003235B2 (fr)
CN (1) CN111051612B (fr)
BR (2) BR122023000219B1 (fr)
DE (1) DE102017122370A1 (fr)
WO (1) WO2019063540A1 (fr)

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Also Published As

Publication number Publication date
BR122023000219B1 (pt) 2023-12-12
US11913178B2 (en) 2024-02-27
WO2019063540A1 (fr) 2019-04-04
EP3688227A1 (fr) 2020-08-05
JP2020534459A (ja) 2020-11-26
BR122023000211B1 (pt) 2023-12-12
US20220127799A1 (en) 2022-04-28
EP4234813A2 (fr) 2023-08-30
JP7003235B2 (ja) 2022-01-20
BR112020002972A2 (pt) 2020-08-11
EP3688227B1 (fr) 2023-07-26
JP2023059958A (ja) 2023-04-27
US20200308780A1 (en) 2020-10-01
JP7524382B2 (ja) 2024-07-29
JP2021191940A (ja) 2021-12-16
CN111051612A (zh) 2020-04-21
DE102017122370A1 (de) 2019-03-28
US11248350B2 (en) 2022-02-15
JP7267357B2 (ja) 2023-05-01
CN111051612B (zh) 2022-09-23
EP4234813A3 (fr) 2023-10-25

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