EP4249678A1 - Procédé de fonctionnement d'un compacteur de sol et compacteur de sol - Google Patents

Procédé de fonctionnement d'un compacteur de sol et compacteur de sol Download PDF

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Publication number
EP4249678A1
EP4249678A1 EP23157501.0A EP23157501A EP4249678A1 EP 4249678 A1 EP4249678 A1 EP 4249678A1 EP 23157501 A EP23157501 A EP 23157501A EP 4249678 A1 EP4249678 A1 EP 4249678A1
Authority
EP
European Patent Office
Prior art keywords
compactor
roller
movement
vibration
soil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23157501.0A
Other languages
German (de)
English (en)
Inventor
Rainer Krockauer
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
Application filed by Hamm AG filed Critical Hamm AG
Publication of EP4249678A1 publication Critical patent/EP4249678A1/fr
Pending legal-status Critical Current

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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
    • E01C19/23—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
    • 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
    • E01C19/282—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows self-propelled, e.g. with an own traction-unit
    • 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

Definitions

  • the present invention relates to a method for operating a soil compactor and a soil compactor which has two compactor rollers arranged at a distance from one another in the direction of a soil compactor longitudinal axis and rotatable about a respective roller axis of rotation and for compacting soil material in a plurality of successive compactor passes essentially in the direction the soil compactor longitudinal axis can be moved in a first direction of movement and a second direction of movement that is essentially opposite to the first direction of movement.
  • each of the compactor rollers is assigned a vibration excitation arrangement, wherein each vibration excitation arrangement is designed to exert an oscillatory torque on the associated compactor roller about its roller axis of rotation in an oscillation-vibration excitation operation and to exert a vibration force on the associated compressor roller substantially orthogonally in a vibration-oscillation excitation operation to their roller axis of rotation.
  • a compactor roller for a soil compactor in which, in an oscillation vibration excitation operation of a vibration excitation arrangement, an oscillatory torque can be exerted on the compactor roller in order to periodically apply a torque about its axis of rotation, which accelerates the compactor roller back and forth in the circumferential direction.
  • a periodic oscillation torque and a resulting periodic back and forth rotational movement of the compactor roller which is superimposed on the rolling movement of the same, a kneading effect or a flexing effect is generated, which is particularly true when the soil to be compacted is made up of asphalt material contributes to improved compaction, especially in the area close to the surface.
  • the vibration excitation arrangement of this known compactor roller can exert a force orthogonal to the axis of rotation in a vibration operation in order to to act on the soil to be compacted with a striking movement to increase compaction.
  • the oscillation excitation arrangement comprises an oscillation arrangement with two oscillation mass units which comprise oscillation unbalanced masses which are rotatable about oscillation rotation axes which are parallel to the roller rotation axis but are radially offset with respect thereto.
  • a vibration arrangement of this known compactor roller comprises a vibration unbalance mass, which can be rotated about an axis of rotation corresponding to the roller rotation axis in vibration-stimulation mode.
  • the oscillation unbalanced masses of the oscillation arrangement are driven to rotate about their axes of rotation or the vibration unbalance mass of the vibration arrangement is driven to rotate about their axis of rotation.
  • the known compactor roller comprises a vibration excitation arrangement with two unbalanced masses, which can be rotated about an axis of rotation that is parallel to the axis of rotation of the roller but is eccentric with respect to it.
  • this vibration excitation arrangement can be switched between an oscillation-vibration excitation operation and a vibration-vibration excitation operation.
  • the trailing compactor roller i.e. the rear compactor roller in the direction of movement
  • vibration compaction mode i.e. operated either in oscillation compaction mode or in static compaction mode
  • the trailing compactor roller is not operated in vibration compaction mode, since essentially no measures influencing the surface structure of the then compacted soil are carried out after the last pass.
  • a particularly smooth surface structure of the compacted soil that is essentially unaffected by unevenness generated by the compaction process itself, while still maintaining efficient compaction operation, can be achieved if the trailing compactor roller is not operated in vibration compaction mode during each compressor pass of the majority of compressor passes.
  • the preceding compactor roller is operated in the vibration compaction operation during at least one, preferably each, compressor pass of the plurality of compressor passes.
  • the trailing compactor roller can advantageously be operated in oscillation compaction operation during at least one, preferably each, compressor pass of the plurality of compressor passes.
  • the kneading effect or flexing effect generated in the oscillation compaction operation particularly in the area close to the surface of the soil to be compacted, not only creates a very compact structure in this area, but the trough-like unevenness generated in a previous vibration compaction operation can also be essentially completely eliminated .
  • the elimination of unevenness generated in vibration compaction operation can also be achieved, for example, by operating the trailing compactor roller in static compression mode during at least one, preferably each, compressor pass of the plurality of compressor passes.
  • the use of a static compaction operation in the trailing compactor roller can be particularly advantageous if sufficient compaction of the soil to be compacted has already been achieved, even in the area close to the surface, but trough-like unevenness that may have been generated in a previous vibration compaction operation still needs to be eliminated.
  • control unit can be designed to carry out a method according to the invention.
  • Fig. 1 is a soil compactor that can be used in particular for compacting a soil 10 constructed with asphalt material, generally designated 12.
  • the soil compactor 12 includes a rear carriage 14, on which a compactor roller 16 is rotatably supported about a roller rotation axis W H.
  • a compactor roller 22 on a front carriage 20 of the soil compactor 12 which is pivotally connected to the rear carriage 14 in the area of an articulated joint 18 carried rotatably about a roller axis of rotation Wv.
  • the two compactor rollers 16, 22 are arranged at a distance from one another in the direction of a soil compactor longitudinal axis L and have roller rotation axes W H , W V which are essentially parallel to one another when the soil compactor 12 travels straight ahead.
  • a control station is also provided on the rear carriage 14, in which an operator can find space to control the soil compactor 10 during compaction operation.
  • the soil compactor 12 moves on the soil 10 to be compacted in two mutually opposite directions of movement B 1 , B 2 , directed essentially in the direction of the soil compactor's longitudinal axis L.
  • the direction of movement B 1 can correspond to a forward movement of the soil compactor 12, in which case the direction of movement B 2 corresponds to a backward movement of the soil compactor 12.
  • the compactor roller 22 provided on the front carriage 20 forms a preceding compactor roller which first passes over the soil 10 to be compacted
  • the compactor roller 16 provided on the rear carriage 14 forms a trailing compactor roller which passes over the soil to be compacted 10 only moves over when it has already been run over by the preceding compactor roller, i.e. the compactor roller 22 provided on the front of the vehicle 20.
  • the compactor roller 16 provided on the rear carriage 14 forms the preceding compactor roller
  • the compactor roller 22 provided on the front carriage 20 forms the trailing compactor roller.
  • Each of the two compressor rollers 16, 18 is assigned a respective vibration excitation arrangement 26, 28.
  • the vibration excitation arrangements 26, 28 can also be constructed identically to one another or have the same dimensions.
  • Each of the vibration excitation arrangements 26, 28 is designed to exert an oscillation torque D about the roller axis of rotation W H , Wv of this compressor roller 16 or 22 on the respectively assigned compressor roller 16, 18 in an oscillation vibration excitation operation, through which the compressor roller 16, 22 essentially is periodically accelerated back and forth in the circumferential direction around the roller axis of rotation W H , W V.
  • This periodic back-and-forth acceleration or the periodic back-and-forth rotational movement of the compressor roller 16 or 22 about its roller axis of rotation W H , W V is superimposed on the rolling movement of the compressor roller 16 or 22 and leads to a kneading effect or a flexing effect especially in the area near the surface of the soil 10 to be compacted.
  • each of the vibration excitation arrangements 26, 28 is designed to generate a vibration force F essentially orthogonal to the roller rotation axis W H , Wv of the respectively assigned compressor roller 16, 22 in a vibration-vibration excitation operation or to exert it on the respectively assigned compressor roller 16, 22.
  • a vibration force orthogonal to the roller axis of rotation W H , Wv the respective compactor roller 16 or 22 is periodically pressed or beaten against the surface of the soil 10 to be compacted, so that this striking impact on the soil 10 also reinforces a further deep impact Compaction of the building material of the same is achieved.
  • the Fig. 2 illustrates by way of example and in principle the design of the compressor rollers 16, 22 with the vibration excitation arrangements 26, 28 assigned to them or arranged in them.
  • Each of these vibration excitation arrangements 26, 28 can comprise a vibration arrangement 30 with a vibration unbalance mass 31 which can be driven for rotation about a vibration axis of rotation
  • the vibration axis of rotation corresponds to the respective roller axis of rotation W H , Wv.
  • each of the oscillation excitation arrangements 26, 28 can comprise an oscillation arrangement 32, wherein the oscillation arrangement 32 can comprise two oscillation unbalanced masses 34, 36 which can be driven to rotate about respective oscillation rotation axes which are eccentric to the roller rotation axis W H , Wv but are parallel to this.
  • the vibration arrangement 30 is activated while the oscillation arrangement 32 remains deactivated, or the oscillation arrangement 32 is operated while the vibration arrangement 30 remains deactivated .
  • both the vibration arrangement 30 and the oscillation arrangement 32 can be used in one or both of the compaction rollers 16, 28 be deactivated or remain deactivated.
  • each of the vibration excitation arrangements 26, 28 can also be arranged in accordance with that in the EP 0 053 598 A1 revealed principle, in which by changing the Phase position of the centers of gravity of unbalanced masses with respect to each other can be switched between oscillation operation and vibration operation. At least at the in Fig. 2 However, possible operation in the illustrated structure, in which both the oscillation arrangement 32 and the vibration arrangement 30 are put into operation, would not be possible with such a structure.
  • the activation of the vibration excitation arrangements 26, 28 to carry out a compaction operation can be carried out, for example, by an operator and in coordination with the movement of the soil compactor 12 either in the direction of movement B 1 or the second direction of movement B 2 .
  • the activation or deactivation of the vibration excitation arrangements 26, 28 can be automated and coordinated with the movement of the soil compactor 12 in the first direction of movement B 1 or the second direction of movement B 2 , for example according to a predetermined compaction plan.
  • the soil compactor 12 can comprise a control unit, generally designated 40, which is designed to control the vibration excitation arrangements 26, 28 for a compaction operation to be carried out in each case to compact a subsoil.
  • a movement direction detection unit generally designated 42 can be provided on the soil compactor 12, for example in association with the compactor roller 22. This can, for example, be designed to detect the direction of rotation of the compressor roller 22 and to feed movement direction information indicating this direction of rotation into the control unit 40. Based on the information indicating the direction of rotation, the control unit 40 then controls the two vibration excitation arrangements 26, 28 in such a way that they are operated in a suitable operating mode in the manner described below. It should be noted that the movement direction detection unit can be designed to provide the movement direction information indicating the direction of rotation in a different manner. For example, the movement direction information can also be from the control of a drive system of the soil compactor, since this control or operation of the drive system is clearly linked to the movement caused by the operation of the drive system and thus also the direction of movement of the soil compactor 12.
  • Fig. 3 is the one in Fig. 1 Soil compactor 12 shown as an example viewed from above on the soil 10 to be compacted.
  • the soil compactor 12 can be used, for example, to be moved over the soil 10 in a plurality of successive passes according to a compaction plan and thereby compact its building material.
  • Each such crossing is marked by an in Fig. 3 shown track 38 defines in which, when moving in the first direction of movement B 1 or the second direction of movement B 2, the soil compactor 12 with its compactor rollers 16, 22 compacts the building material of the soil 10.
  • the soil compactor 12 When compacting the soil 10, the soil compactor 12 is operated in such a way that, regardless of whether it is moved in the first direction of movement B 1 or the second direction of movement B 2 , the trailing compactor roller of the two compactor rollers 16, 22 is not in a vibration compaction operation is operated, in which the respective vibration excitation arrangement 26 or 28 operates in vibration-vibration excitation mode, that is, for example, the vibration arrangement 30 is activated while the oscillation arrangement 32 is deactivated.
  • the trailing compactor roller 16 or 22 is not operated in vibration compaction mode, but at least in the last pass, with which an area of the soil to be compacted 10, represented for example by the track 38 is run over.
  • the preceding compactor roller of the two Compactor rollers 16, 18 are operated in vibration compaction mode.
  • the trailing compactor roller of the two compactor rollers 16, 22 can be in an oscillation compaction mode or a static one Compression operation can be operated in which the vibration excitation arrangement 26 or 28 of the trailing compressor roller of the two compressor rollers 16, 22 is deactivated. Due to the exclusively static load or the flexing effect generated in the oscillation compaction operation, unevenness on the surface of the soil to be compacted generated in the vibration compaction operation of the respective preceding compactor roller is efficiently eliminated, while at the same time also caused by the static load or that generated in the oscillation compaction operation Walk effect further compaction of the soil 10 takes place.
  • the trailing compactor roller In an operation in which it is ensured that the trailing compactor roller is not operated in vibration mode, but for example the preceding compactor roller is operated in vibration compaction mode, while the trailing compactor roller is operated in oscillation compaction mode or in static compaction mode whenever a reversal of the direction of movement of the soil compactor 12 occurs when it changes from a crossing with movement in the first direction of movement B 1 or the second direction of movement B 2 to a crossing with movement in the second direction of movement B 2 or the first direction of movement B 1 , also a change in the operating mode of the compressor rollers 16, 22. This change can also take place either according to the instructions of an operator or automatically.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Road Paving Machines (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
EP23157501.0A 2022-03-22 2023-02-20 Procédé de fonctionnement d'un compacteur de sol et compacteur de sol Pending EP4249678A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022106657.6A DE102022106657A1 (de) 2022-03-22 2022-03-22 Verfahren zum Betreiben eines Bodenverdichters und Bodenverdichter

Publications (1)

Publication Number Publication Date
EP4249678A1 true EP4249678A1 (fr) 2023-09-27

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EP23157501.0A Pending EP4249678A1 (fr) 2022-03-22 2023-02-20 Procédé de fonctionnement d'un compacteur de sol et compacteur de sol

Country Status (4)

Country Link
US (1) US20230304231A1 (fr)
EP (1) EP4249678A1 (fr)
CN (2) CN116791439A (fr)
DE (1) DE102022106657A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053598A1 (fr) 1980-12-03 1982-06-09 Geodynamik H Thurner AB Méthode pour compacter une couche de matière et machine de compactage pour l'application de cette méthode
WO2013113819A1 (fr) 2012-02-01 2013-08-08 Hamm Ag Cylindre compacteur pour engin de compactage de sol
US20140205380A1 (en) * 2013-01-18 2014-07-24 Wacker Neuson Production Americas Llc Vibratory Compacting Roller Machine and Operator Control Therefor
EP2852707B1 (fr) * 2012-05-22 2016-10-12 Hamm AG Procédé de planification et de mise en oeuvre de procédures de compactage du sol, en particulier de compactage d'asphalte

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020128842A1 (de) 2020-11-03 2022-05-05 Hamm Ag Verfahren zum Verdichten von Asphaltmaterial

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053598A1 (fr) 1980-12-03 1982-06-09 Geodynamik H Thurner AB Méthode pour compacter une couche de matière et machine de compactage pour l'application de cette méthode
WO2013113819A1 (fr) 2012-02-01 2013-08-08 Hamm Ag Cylindre compacteur pour engin de compactage de sol
EP2852707B1 (fr) * 2012-05-22 2016-10-12 Hamm AG Procédé de planification et de mise en oeuvre de procédures de compactage du sol, en particulier de compactage d'asphalte
US20140205380A1 (en) * 2013-01-18 2014-07-24 Wacker Neuson Production Americas Llc Vibratory Compacting Roller Machine and Operator Control Therefor

Also Published As

Publication number Publication date
DE102022106657A1 (de) 2023-09-28
CN116791439A (zh) 2023-09-22
US20230304231A1 (en) 2023-09-28
CN220202383U (zh) 2023-12-19

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