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EP3828342A1 - Compacteur de sol - Google Patents

Compacteur de sol Download PDF

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Publication number
EP3828342A1
EP3828342A1 EP20203190.2A EP20203190A EP3828342A1 EP 3828342 A1 EP3828342 A1 EP 3828342A1 EP 20203190 A EP20203190 A EP 20203190A EP 3828342 A1 EP3828342 A1 EP 3828342A1
Authority
EP
European Patent Office
Prior art keywords
sprinkling
valve
unit
liquid
arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20203190.2A
Other languages
German (de)
English (en)
Other versions
EP3828342B1 (fr
Inventor
Thomas Gradl
Heiko Schabner
Detlef Bornemann
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 EP3828342A1 publication Critical patent/EP3828342A1/fr
Application granted granted Critical
Publication of EP3828342B1 publication Critical patent/EP3828342B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/238—Wetting, cleaning or heating rolling elements, e.g. oiling, wiping, scraping

Definitions

  • the present invention relates to a soil compactor with at least one compactor roller which can be rotated about a roller axis of rotation and which can in particular be used to compact asphalt material.
  • Such a soil compactor is from the JP 3031411 B2 known.
  • the compactor rollers which in this case are designed as rubber wheels or each include several such rubber wheels, are each assigned a scraper arrangement with a scraper unit which can be brought into an active position for scraping off adhering material.
  • the stripping unit is a hydraulic fluid piston / cylinder unit assigned.
  • hydraulic fluid can be introduced via a hydraulic fluid valve into a hydraulic fluid chamber of the hydraulic fluid piston / cylinder unit in order to bring the stripping unit into the active position in a first operating position of the hydraulic fluid valve.
  • this connects the hydraulic fluid chamber with a fluid tank so that the stripping unit can move into its inactive position.
  • sprinkling arrangements are provided, each with two sprinkling units for dispensing sprinkling liquid onto the surfaces of the compressor rolls.
  • Each of the two sprinkling units is assigned a sprinkling pump, the sprinkling liquid outlet of which can be brought into and out of the sprinkling liquid supply connection to the respective sprinkling unit via a respective sprinkling unit valve.
  • the sprinkler unit valves become a supply of sprinkler fluid to the respectively assigned sprinkler units allowed valve position, so that by means of the sprinkling pumps sprinkling liquid can be conveyed to the sprinkling units, the hydraulic fluid valve is also brought into its first valve position, which establishes a connection between the hydraulic fluid pump and the hydraulic fluid chamber, so that by means of the hydraulic fluid pump pressure fluid to the hydraulic fluid chamber of the hydraulic fluid piston / Cylinder unit can be promoted and the stripping unit can be placed in its active position.
  • the object of the present invention is to provide a soil compactor which, with a simplified structure, provides high operational reliability with regard to the interaction between the activation / deactivation of a sprinkler arrangement and the activation / deactivation of a scraper arrangement.
  • This soil compactor is characterized in that a pressurized fluid chamber of the at least one pressurized fluid piston / cylinder unit receives irrigation fluid conveyed by at least one irrigation pump for adjusting the at least one stripping unit.
  • the soil compactor constructed according to the invention there is a structural and functional link between the scraper arrangement (s) and the sprinkling arrangement (s).
  • the sprinkling liquid used for sprinkling the compactor roller (s) and pressurized for this purpose is also used to provide the pressure liquid required for activating the scraper unit (s). This means that whenever sprinkling liquid is conveyed to sprinkle the compressor roller (s), this or a part of the same is available as pressure liquid for moving the stripping unit (s) into their active position.
  • the pressurized fluid chamber be in connection with a sprinkling liquid outlet of the at least one sprinkling pump via a sprinkling liquid valve.
  • the sprinkling liquid valve can include a non-return valve that allows a sprinkling liquid flow only from the at least one sprinkling pump to the hydraulic fluid chamber, so that, even when the sprinkling pump is deactivated, there is basically the possibility of maintaining the sprinkling liquid pressure in the hydraulic fluid chamber, which keeps a stripping unit in its active position.
  • the irrigation fluid valve can comprise an evacuation flow channel.
  • the emptying flow channel can include a flow throttle, so that a gradual pressure drop occurs in the pressurized fluid chamber when the pumping operation is terminated. Furthermore, the emptying flow channel can be designed to establish a connection between the pressurized fluid chamber and at least one irrigation unit or a liquid tank, so that when the stripping operation is terminated, the irrigation fluid initially present in the pressure fluid chamber can either be released to irrigate a compressor roller or by feeding back into a Liquid tank can be fed back to the pumping operation.
  • a first flow path comprising the check valve and a second flow path comprising the drainage flow channel can be provided in parallel to one another in the sprinkling liquid valve.
  • the sprinkling fluid valve can be adjusted between a first valve position assigned to the active position of the at least one wiping unit and a second valve position assigned to the inactive position of the at least one wiping unit is an irrigation pump and when the irrigation fluid valve is in the second valve position, the pressure fluid chamber is in communication with at least one irrigation unit or a fluid tank via the drainage flow channel.
  • At least one sprinkler unit can be in and out of sprinkler fluid supply connection with at least one sprinkler pump via a sprinkler unit valve be bringable.
  • the pressure fluid chamber is in permanent connection with the at least one irrigation pump and can be brought into and out of the irrigation fluid supply connection to the at least one irrigation unit via the irrigation unit valve.
  • the or at least one sprinkling pump can be operated essentially permanently, for example, in order to maintain the sprinkling liquid pressure required to hold the wiping unit in the active position and at the same time to deliver sprinkling liquid to the compressor roller (s).
  • the hydraulic fluid chamber be in connection with a hydraulic fluid reservoir and / or a pressure relief valve.
  • a simple structure can be further supported in that at least one hydraulic fluid piston / cylinder unit is preloaded into a first operating position corresponding to the inactive position and can be brought into a second operating position corresponding to the active position by supplying sprinkling fluid.
  • the sprinkling arrangement comprises a first liquid tank and a second liquid tank and a liquid tank switchover valve, whereby, by switching over the liquid tank switchover valve, fluid optionally from the first fluid tank or the second fluid tank through the at least one sprinkler pump can be pumped.
  • a control unit is assigned to the liquid tank switchover valve, the control unit being designed to switch the liquid tank switchover valve depending on an ambient temperature, there is the possibility of using different liquids accommodated in the two liquid tanks depending on the temperature.
  • a soil compactor generally designated 10, is shown in side view.
  • the soil compactor 10 comprises a compactor structure 12, at the two end regions of which are located in a longitudinal direction or a direction of travel, respectively, a compactor roller 14, 16 around one to the plane of the drawing Fig. 1 orthogonal roller axis of rotation is rotatably supported.
  • Each of the two compactor rollers 14, 16 can be supported on the compactor structure 12 so as to be pivotable about an approximately vertical axis in order to steer the compactor.
  • An operator operating the soil compactor 10 can take a seat in a cabin 18, from which the soil compactor 10 can be controlled or various system areas provided thereon can be activated or deactivated.
  • FIG. 14 shows, in perspective view, an example of a combination of a sprinkler assembly, generally designated 20, with one generally designated 22 designated wiper assembly.
  • a sprinkling arrangement 20 or scraper arrangement 22 can be provided in association with each of the two compactor rollers 14, 16 of the soil compactor 10 and is shown in FIG Fig. 1 for example, shown in association with the compactor roller 16 provided at the right end of the soil compactor 10.
  • the sprinkling arrangement 20 shown comprises two sprinkling units 24, 26, wherein each of these sprinkling units 24, 26 can comprise, for example, a spray bar 28 with a plurality of spray nozzles 30 provided thereon for dispensing sprinkling liquid onto an outer circumferential surface of the respectively assigned compressor roller.
  • the sprinkling unit 24 can be connected to the associated compactor roller, in the example shown in FIG Fig. 1 the compactor roller 16, supporting roller frame 32 be fixed.
  • the sprinkling unit 26, together with a scraper unit 34 of the scraper arrangement 22, can be swiveled in the area of two swivel connection areas 36, 38 with respect to the roller frame 32 about a swivel axis parallel to the assigned roller axis of rotation.
  • the scraper unit 34 which can include, for example, a scraper blade 40 extending over the entire length of the associated compactor roller 16, can be brought into an active position in which the scraper blade 40 rests against the outer circumferential surface of the assigned compactor roller or is positioned at a small distance from it can be in order to be able to strip off material adhering to the outer circumferential surface of this compactor roller, for example asphalt material, or to evenly distribute sprinkling liquid sprayed onto this outer circumferential surface.
  • the stripping unit 34 In an inactive position, the stripping unit 34 is pivoted away from the outer circumferential surface of the associated compactor roller, so that it cannot be effective for stripping and distributing.
  • each of a wiper unit 34 of a wiper arrangement 22 with two sprinkler units 24, 26 of a sprinkler system 20 can be arranged in opposite directions to one another.
  • the Fig. 3 illustrates a sprinkling liquid supply system 42, by means of which sprinkling liquid from a liquid tank 78 on the one hand for spraying onto the outer circumferential surface of an associated compressor roller to one or more sprinkling units, for example the in Fig. 2 irrigation units 24, 26 shown, can be conveyed and can also be used to create a scraper arrangement, for example the one in Fig. 2 shown stripping unit 34 to adjust between its active position and its inactive position.
  • the sprinkling liquid supply system 42 shown comprises a sprinkling pump 44 which, for example, can be under the control of a control unit 47 and can be activated by the control unit 47 for delivery operation, that is, for delivering sprinkling liquid.
  • the sprinkling pump 44 conveys sprinkling liquid to the two in FIG Fig. 2
  • the sprinkling pump 44 conveys pressurized sprinkling liquid to an actuator arrangement 52, for example the one in FIG Fig.
  • the actuator assembly 52 comprises a pressure fluid piston / cylinder unit 54 with a pressure fluid chamber 56 for receiving pressurized irrigation fluid and with a piston member 58 which can be displaced by the pressure of the irrigation fluid built up in the pressure fluid chamber 56 and thereby for example on the in Fig. 2 shown stripping unit 34 can act to adjust the same in the active position.
  • a biasing element 60 provided, for example, in the hydraulic fluid piston / cylinder unit 54, which can for example be designed as a helical compression spring, the hydraulic fluid piston / cylinder unit 54 is in an inactive position of the associated one
  • the first operating position corresponding to the stripping unit is prestressed with the minimum volume of the pressure fluid chamber 56.
  • the piston member 58 By supplying pressurized sprinkling fluid into the pressurized fluid chamber 56, the piston member 58 is displaced against the bias of the biasing arrangement 60 in the direction of a second operating position of the pressurized fluid piston / cylinder unit 54 associated with the active position of the stripping unit 34.
  • the sprinkling liquid valve 50 comprises a first flow path 62, in which a check valve 64 is arranged, which allows the sprinkling liquid to flow only in the direction of the pressurized liquid chamber 56.
  • a second flow path 66 is provided in the sprinkling liquid valve 50 parallel to this first flow path 62.
  • This second flow path 66 comprises an emptying flow channel 68 with a flow throttle 70.
  • Both flow paths 62, 66 are permanently connected to a sprinkling liquid outlet 72 of the sprinkling pump 44 and the pressure fluid chamber 56.
  • Is the sprinkling pump 44 for conveying sprinkling liquid in the direction of the sprinkling arrangement 20 active it primarily conveys pressurized sprinkling fluid into the hydraulic fluid chamber 56 via the non-return valve 64 which generally provides a lower flow resistance in this pumping operation, so that the pressure of the sprinkling fluid building up therein causes the hydraulic fluid piston / cylinder unit 54 to move into its second Reaches the operating position and thus brings the stripping unit 34 into its active position and holds it in the active position as long as the sprinkling pump 44 is active for conveying sprinkling liquid.
  • the sprinkling liquid contained under pressure in the hydraulic fluid chamber 56 is released via the second flow path 66 and the flow throttle 70 provided therein in the direction of the sprinkling liquid line 46 and via this to the sprinkling units, so that this sprinkling liquid is still being sprinkled the assigned compactor roller can be used.
  • the second flow path 66 could also be connected to the liquid tank 78, from which the sprinkling pump 44 draws the sprinkling liquid.
  • a sprinkling liquid supply system 42 shown here ensures that whenever sprinkling liquid is to be sprayed onto an outer circumferential surface of a compressor roller by activating the sprinkler pump 44, the wiper arrangement associated with the same compressor roller is preferably activated, so that on the one hand it is ensured that on Material adhering to the outer circumferential surface of the associated compactor roller is stripped off, on the other hand it is also ensured that the sprinkling liquid sprayed onto the outer circumferential surface of a compactor roller is evenly distributed by the stripping unit or the stripping units of this scraper arrangement and thus basically the risk of material adhering is reduced.
  • the wiper arrangement only becomes inactive when the irrigation is also stopped and the operation of the irrigation pump 44 is ended for this purpose.
  • the flow throttle 70 ensures that no spontaneous pressure release can occur in the pressurized fluid chamber 56, but that a stripping unit is gradually pivoted from its active position into the inactive position.
  • the flow restrictor 70 ensures that the pressure in the hydraulic fluid chamber 56 cannot drop so far in such pumping interval pauses that the pretensioning arrangement 60 removes the associated wiper unit can adjust their active position out.
  • the flow throttle 70 can be set in such a way that it allows the pressure in the hydraulic fluid chamber 56 to drop, allowing adjustment in the direction of the inactive position, after a time of approximately 10 seconds after the sprinkling pump 44 has stopped operating. In this way, even with such intermittent operation, it is ensured that an associated wiper unit is reliably held in the active position by the pressure of the sprinkling liquid prevailing in the pressurized fluid chamber 56 even during pumping intervals.
  • FIG. 14 shows an embodiment of a sprinkling liquid supply system 42 in which, unlike the embodiment of FIG Fig. 3 , no passive sprinkling liquid valve 62, but a sprinkling liquid valve 50 that can be actively switched between two valve positions is used. Even that in the form of the Fig. 4
  • the sprinkling valve 50 shown provides the two flow paths 62, 66, the check valve 64 being provided in the first flow path 62 and the emptying flow channel 68 being provided in the second flow path 66, but without a flow throttle.
  • the irrigation fluid valve 50 can, for example, in its in Fig.
  • the sprinkling liquid valve 50 is biased into its first valve position, so that on the one hand sprinkling liquid is conveyed to the sprinkling arrangement 20 and, on the other hand, by conveying sprinkling liquid into the pressure liquid chamber 56, the associated wiper arrangement is activated and one or more wiper elements of the same are activated the active position are brought.
  • the sprinkling operation is terminated, i.e.
  • the sprinkling liquid valve 50 when the sprinkling pump 44 is deactivated, the sprinkling liquid valve 50 is activated or energized and this is thus brought into its second valve position in which the sprinkling liquid under pressure in the hydraulic fluid chamber 56 passes over the drainage flow channel 68 to the sprinkling arrangement 20 or can optionally be dispensed into the liquid tank 78 in order to allow the wiper arrangement to be adjusted into the inactive position in this way. After a For example, a predetermined period of time, this energizing of the sprinkling liquid valve 50 can be ended again, so that the first valve position is assumed again.
  • One advantage of this embodiment is that, for example, a temporary activation of the sprinkler pump 44 can bring the wiper arrangement 22 into its active position and, due to the action of the check valve 64, it also remains in the active position, even if the sprinkler pump 44 is subsequently stopped or is operated with comparatively long pumping intervals is operated, for example, to be able to apply a comparatively small amount of the sprinkling liquid to the outer circumferential surface of the associated compressor roller or, if necessary, to deactivate the sprinkling system 20 with the scraper arrangement 22 still active.
  • Such an operating state can be assumed, for example, when the soil compactor 10 is also to be used to spread grit and work it into the asphalt.
  • the sprinkling arrangement is generally deactivated when the scraper arrangement is activated.
  • this state can be brought about by briefly activating the sprinkling pump 44 to build up sufficient pressure in the hydraulic fluid chamber 56 and then deactivating it again with the sprinkling fluid valve held in the first valve position.
  • the Fig. 5 shows an embodiment of a sprinkling liquid supply system 42, in which the sprinkling pump 44 delivers sprinkling liquid via a sprinkling unit valve 74 arranged in the sprinkling liquid line 46 to the sprinkling arrangement 20 or one or more sprinkling units 24, 26 thereof.
  • the sprinkler unit valve 74 can be configured between an in Fig. 5 The interruption position shown, in which a supply of sprinkling liquid to the sprinkling arrangement 20 is prevented, and a connection position can be switched over in which a sprinkling liquid supply connection between the sprinkling pump 44 and the sprinkling arrangement 20 exists.
  • the sprinkling unit valve 74 can be controlled by the control unit 47.
  • the hydraulic fluid piston / cylinder unit 54 is in permanent communication with the irrigation fluid outlet 72 of the irrigation pump 44 via the branch line 48. Furthermore, the hydraulic fluid chamber 56 of the hydraulic fluid piston / cylinder unit 54 is in communication with a hydraulic fluid reservoir 75 and a pressure relief valve 76.
  • the hydraulic fluid reservoir 75 can be loaded on the one hand, and on the other hand, when a predetermined threshold pressure is reached, the pressure relief valve 76 can be opened and allow the sprinkling liquid to be dispensed towards the liquid tank 78.
  • the hydraulic fluid reservoir 75 which can be designed as a membrane reservoir, for example, ensures that a sufficiently high fluid pressure is maintained in the area of the hydraulic fluid chamber 56 can, which ensures that the wiper arrangement 22 reliably remains in its active position.
  • the Fig. 6 shows a further development of a sprinkling liquid supply system 42 constructed according to the invention, in which by means of the sprinkling pump 44 liquid or sprinkling liquid can be conveyed on the one hand in the direction of a sprinkler arrangement 20 and on the other hand in the direction of a scraper arrangement 22.
  • This system area of the Irrigation fluid delivery system 42 can be operated as previously with respect to FIG Figures 3 to 5 be constructed as described.
  • the irrigation fluid delivery system 42 of FIG Fig. 6 includes, in addition to what has already been mentioned above and for example in Fig. 5
  • a liquid tank switchover valve 82 is under the control of the control unit 47 and can switch between a valve position in which the sprinkling pump 44 is in connection with the liquid tank 78, and a valve position in which the sprinkling pump 44 is in connection with the further liquid tank 80 is to be switched.
  • the two liquid tanks 78, 80 can be filled with different liquids.
  • the liquid tank 78 generally used for sprinkling can be filled with water or a mixture of water and an additive, while the liquid tank 80 can contain an antifreeze agent.
  • the liquid tank switchover valve 82 is set in such a way that the sprinkling pump 44 conveys sprinkling liquid, for example water, from the liquid tank 78. This state can correspond to a non-excited basic state in which the liquid tank switchover valve 82 can be biased.
  • the liquid tank switchover valve 82 can be switched into its in Fig. 6 shown, the sprinkling pump 44 in connection with the further liquid tank 80 bringing the valve position, so that antifreeze can be pumped into the various lines and thus freezing can be prevented. It is also possible to hold different sprinkling liquids which can be used for sprinkling operation in these two liquid tanks 78, 80.
  • pure water can be stored as a sprinkling liquid in one of these two liquid tanks 78, 80, while an additive or a mixture is then stored in the other liquid tank 80 or 78
  • Water and an additive can be stored so that, for example, different sprinkling fluids can also be accessed depending on the material to be compacted or the ambient temperatures.
  • the liquid tank switching valve 82 can, for example, be operated in a clocked manner, so that liquid is withdrawn from the liquid tank 78 in phases and liquid from the liquid tank 80 in phases and these two liquids converge in the flow path the sprinkling arrangement 20 and / or mix on the surface of the compactor roller to be sprinkled.
  • the liquid tank switchover valve 82 could have a further switching position in which a connection between the sprinkling pump 44 and the two liquid tanks 78, 80 is established.
  • the information about the prevailing ambient temperatures can be supplied, for example, by a temperature sensor 84 provided on the soil compactor, which inputs a corresponding temperature signal into the control unit 47 so that it can control the liquid tank switchover valve taking this temperature signal into account.
  • a soil compactor constructed according to the invention can be varied in various ways.
  • several hydraulic fluid piston / cylinder units can be provided in association with a single wiper unit in order to hold them in the active position with greater force.
  • Several sprinkling pumps can be provided parallel to one another in order to be able to convey a larger amount of sprinkling liquid or to be able to adjust the amount of sprinkling liquid conveyed by optionally activating different numbers of sprinkling pumps. For example, in association with each of the in Fig.
  • the sprinkling units 24, 26 of the sprinkling arrangement 20 shown each have a sprinkling pump 44 which can then also be operated in parallel and which can both be designed to convey sprinkling liquid to one or more pressure fluid piston / cylinder units.
  • the present invention can be used in connection with one or more compactor rollers which are designed with a steel jacket and which can be continuous in the direction of the roller axis of rotation or optionally also divided, as shown in FIG Fig. 1 is illustrated with reference to the compactor roller 16. Also in connection with compressor rollers which are designed as rubber wheels or several rubber wheels lying next to one another in the direction of the roller axis of rotation, as shown in FIG Fig. 1 As illustrated by the compactor drum 14, the present invention may find application.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Catching Or Destruction (AREA)
EP20203190.2A 2019-11-26 2020-10-22 Compacteur de sol Active EP3828342B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019131890.4A DE102019131890A1 (de) 2019-11-26 2019-11-26 Bodenverdichter

Publications (2)

Publication Number Publication Date
EP3828342A1 true EP3828342A1 (fr) 2021-06-02
EP3828342B1 EP3828342B1 (fr) 2022-04-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20203190.2A Active EP3828342B1 (fr) 2019-11-26 2020-10-22 Compacteur de sol

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EP (1) EP3828342B1 (fr)
DE (1) DE102019131890A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116950365A (zh) * 2023-06-21 2023-10-27 中铁建工集团有限公司 大区域高平整度要求激光抹平机器人及抹平方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021124137A1 (de) 2021-09-17 2023-03-23 Bomag Gmbh Bodenverdichtungsmaschine, insbesondere Tandemwalze

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993009296A1 (fr) * 1991-10-30 1993-05-13 Ingersoll-Rand Company Dispositif servant a nettoyer et a lubrifier un rouleau de compactage de bitume
JP3031411B2 (ja) 1996-08-27 2000-04-10 川崎重工業株式会社 締固機械のスクレーパ操作装置
JP2001107313A (ja) * 1999-10-05 2001-04-17 Sakai Heavy Ind Ltd 転圧車両
EP3181753A1 (fr) * 2015-12-18 2017-06-21 Hamm AG Compacteur de sol et procédé de compactage de sol

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4958874B2 (ja) * 2008-10-08 2012-06-20 日立建機株式会社 搭乗式転圧ローラ車両
JP6180357B2 (ja) * 2014-04-09 2017-08-16 日立建機株式会社 転圧機械
US20170073906A1 (en) * 2015-09-10 2017-03-16 Caterpillar Paving Products Inc. Compactor machine cleaning device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993009296A1 (fr) * 1991-10-30 1993-05-13 Ingersoll-Rand Company Dispositif servant a nettoyer et a lubrifier un rouleau de compactage de bitume
JP3031411B2 (ja) 1996-08-27 2000-04-10 川崎重工業株式会社 締固機械のスクレーパ操作装置
JP2001107313A (ja) * 1999-10-05 2001-04-17 Sakai Heavy Ind Ltd 転圧車両
EP3181753A1 (fr) * 2015-12-18 2017-06-21 Hamm AG Compacteur de sol et procédé de compactage de sol

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116950365A (zh) * 2023-06-21 2023-10-27 中铁建工集团有限公司 大区域高平整度要求激光抹平机器人及抹平方法

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Publication number Publication date
DE102019131890A1 (de) 2021-05-27
EP3828342B1 (fr) 2022-04-27

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