EP2256248B2 - Straßenfertiger - Google Patents

Straßenfertiger Download PDF

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Publication number
EP2256248B2
EP2256248B2 EP09006978.2A EP09006978A EP2256248B2 EP 2256248 B2 EP2256248 B2 EP 2256248B2 EP 09006978 A EP09006978 A EP 09006978A EP 2256248 B2 EP2256248 B2 EP 2256248B2
Authority
EP
European Patent Office
Prior art keywords
pumps
clutch
generator
combustion engine
pump
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
EP09006978.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2256248A1 (de
EP2256248B1 (de
Inventor
Arthur Braun
Christian Dr.-Ing. Pawlik
Thomas Schmidt
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.)
Joseph Voegele AG
Original Assignee
Joseph Voegele 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41066256&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2256248(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Joseph Voegele AG filed Critical Joseph Voegele AG
Priority to EP09006978.2A priority Critical patent/EP2256248B2/de
Priority to DE502009000291T priority patent/DE502009000291D1/de
Priority to US12/722,478 priority patent/US8356958B2/en
Priority to CN2010101581333A priority patent/CN101899808B/zh
Priority to JP2010106227A priority patent/JP4977231B2/ja
Publication of EP2256248A1 publication Critical patent/EP2256248A1/de
Publication of EP2256248B1 publication Critical patent/EP2256248B1/de
Publication of EP2256248B2 publication Critical patent/EP2256248B2/de
Application granted granted Critical
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
    • E01C19/48—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ

Definitions

  • Road finisher ( EP 1 118 714 A , EP 0 489 969 A , DE 103 00 745 A1 ) have, at least at times, high power-requiring heating devices or powerful electric motors, e.g. B. in the paver with a longitudinal conveyor, or in a screed of the paver for tampers, sealing strips, smoothing plates and the like., Which are powered by the generator with electricity.
  • the internal combustion engine drives a number of hydraulic pumps including a drive pump unit via a pump distributor gear, which define high-performance functional assemblies with hydraulic motors or hydraulic cylinders distributed accordingly in the road finisher and/or the screed.
  • All functional assemblies are permanently driven by the crankshaft of the combustion engine via a torsionally flexible coupling, eg via the pump transfer case, and generate high drag loads for the combustion engine.
  • the towing loads make it difficult to start the combustion engine.
  • the internal combustion engine must first overcome the towing loads of functional assemblies that are actually not required, which inexpediently lengthens the heating-up process and increases fuel consumption.
  • the road finisher should run as efficiently as possible in a transport phase, which is made more difficult by the towing loads of the functional assemblies that are not required, ie the maximum transport speed is limited and fuel consumption is increased.
  • a transport phase which is made more difficult by the towing loads of the functional assemblies that are not required, ie the maximum transport speed is limited and fuel consumption is increased.
  • there are also mechanical and hydraulic power losses in the gear stages and/or power splits and in the hydraulic system which are particularly significant when the transmission or hydraulic oil is cold, and demand more power from the combustion engine than would actually be required for these operating phases.
  • Transfer cases are known in agricultural machinery technology for other reasons, which have at least one permanently drivable power split and power splits that can be selectively switched on and off.
  • the requirements for agricultural machinery are not comparable to the requirements that occur specifically for road finishers, which are caused, among other things, by the material to be paved, its heating and metering, and the drive, heating and control of the functional assemblies to be operated for paving the material in the road paver and/or the Screed are dictated.
  • the invention is based on the object of specifying a road finisher of the type mentioned at the outset in order to improve the energy balance and environmental compatibility with regard to specific requirements when operating a road finisher.
  • At least one pump expediently at least one powerful functional assembly, can be uncoupled while the generator is permanently driven, e.g. in order not to endanger the operational readiness of the finisher or to supply heating devices, and the at least one uncoupled pump If the pump remains uncoupled for a longer period of time depending on the operating situation, the towing load for the combustion engine is noticeably reduced.
  • the internal combustion engine starts more easily, completes its warm-up phase more quickly if necessary, completes a warm-up phase of the heating devices more quickly via the generator, allows the operating temperature of heated working components to be maintained with lower fuel consumption and consumes significantly during transport journeys or while waiting for a new batch of material less fuel than before.
  • a heating-up phase of electrical heating devices can also be carried out in a performance-optimized manner.
  • Overall taking into account the specific requirements during the operation of a road finisher in certain operating situations, by uncoupling at least one pump, a considerable amount of fuel is saved, the burden on the environment is reduced and the maintenance frequency is reduced. When the road finisher is at a standstill, even the drive pump unit can be uncoupled.
  • a transport phase can be carried out with a higher transport speed and lower fuel consumption if only the drive pump unit required for driving is driven and the generator is also driven, while other pumps that are not required for the transport phase are uncoupled from functional assemblies.
  • the towing load of the generator may be negligible anyway during the transport phase.
  • At least one hydraulic pump or all hydraulic pumps that are not required are disconnected, so that the internal combustion engine starts more easily and reaches operating temperature more quickly, while having less specific fuel consumption.
  • the generator and the hydraulic pumps of the functional assemblies are driven jointly by the crankshaft via a torsionally flexible coupling, which insulates the internal combustion engine or its flywheel from torsional shocks.
  • the generator and the drive pump unit can be driven together permanently via the drive train, while at least one pump can be uncoupled from other functional assemblies via the at least one switchable clutch.
  • the drive pump unit is operated for the transport journey while other pumps are uncoupled. If necessary, the generator generates only a negligible towing load during transport anyway and can, if necessary, supply heating devices or other electrical consumers as required.
  • all of the pumps arranged on the pump transfer case, including the drive pump unit can be uncoupled together via the switchable clutch. Only a single switchable clutch is required, which uncouples the towing loads when disengaged and is designed in such a way that it is not damaged when disengaged, even over a long period of time.
  • individual switchable clutches are arranged between the crankshaft of the internal combustion engine and the pumps for functional assemblies, possibly including the drive pump unit. These individual switchable clutches are preferably located on or in the pump transfer case or in its power branches to the pumps of the functional assemblies.
  • the towing load of a specific functional assembly or the towing loads of several or all functional assemblies can be uncoupled as required, for example to improve the starting behavior of the combustion engine, to carry out the transport journey quickly and with lower fuel consumption, or to bring the heating devices up to operating temperature as quickly as possible.
  • the clutch provided in each case is expediently switched electrically, pneumatically, hydraulically or mechanically.
  • the clutch or all clutches are engaged.
  • the permanently driven generator can be assigned a low-power hydraulic pump that provides supply pressure for basic functions and the clutch.
  • a self-propelled paver F ( 1 ) for the production of traffic areas from, for example, bituminous, hot paving material with a slow paving working speed can also carry out transport travel at a significantly higher transport travel speed.
  • the road finisher F has a chassis 2, here a crawler chassis, alternatively a wheeled chassis (not shown), which is driven by at least one hydraulic drive motor 16.
  • a bunker 5 for paving material is arranged.
  • a longitudinal conveying device 6 extends from the bunker 5 through the chassis 1 to a transverse distribution device 7 located at the rear, typically a hydraulically driven transverse distribution screw.
  • the longitudinal conveyor device 6 can be driven, for example, by hydraulic motors, not shown, and can comprise an electrical heating device H.
  • the transverse distribution device 7 is located in front of a paving screed B that is towed by the road finisher F with bars 8 and that levels and/or compacts the paving material.
  • the bars 8 are articulated on the chassis 1 and are height-adjustable by means of hydraulic motors 15, for example hydraulic cylinders.
  • Hydraulic motors 14, for example hydraulic cylinders which are supported on the chassis 1 and, for example, during transport travel, the screed B in the in 1 hold in the raised position, but can also be actuated during paving work travel in certain operating phases.
  • On top of the chassis there is a driver's cab 3 with a control and operating console 51.
  • a prime mover P with an internal combustion engine M, typically a diesel engine, and a generator G for supplying at least the electrical heating devices H in the road finisher F and /or arranged in the screed B and/or for supplying electric motors comprising functional assemblies.
  • an internal combustion engine M typically a diesel engine
  • a generator G for supplying at least the electrical heating devices H in the road finisher F and /or arranged in the screed B and/or for supplying electric motors comprising functional assemblies.
  • the screed B has, for example, a base screed connected to the beams 8 and laterally extendable extending screeds 13, each equipped with tampers 10, 11 and/or pressure bars (not shown) and vibration devices for the bottom smoothing plates, the tampers 10, 11, the pressure bars and/or or the smoothing plates can have electrical heating devices H.
  • the extending screed parts 13 can be moved, for example by means of hydraulic motors 9, for example hydraulic cylinders.
  • the internal combustion engine M has a clutch or flywheel housing 18 to which a pump distributor gear 19 is flanged, which is used to drive and/or supply the pumps of the functional assemblies.
  • a crankshaft 20 of the internal combustion engine M drives a drive train 22 via a torsionally flexible coupling 21, which leads to a switchable clutch K1 on (or as shown in) the pump transfer case 19.
  • Clutch K1 is hydraulically, pneumatically, electrically or mechanically switchable between an engaged and a disengaged position, and is in 2 between the output train 22 and a coaxial extension 22 'of the output train 22 is arranged.
  • the extension 22 ′ leads to a driving pump unit 23 of a driving function assembly, which is centrally flanged to the pump transfer case 19 in the embodiment shown and to which the drive motors 16 belong, for example.
  • the switchable clutch K1 (e.g. a hydraulic multi-disk clutch) has at least one clutch part 25 which is permanently connected to the drive train 22 and which, in the engaged position of the clutch K1, is non-rotatably connected to a clutch part 24 for the extension 22' and at the same time to a hollow shaft 26.
  • the hollow shaft 26 drives several gear stages 27, 28, 29 in the pump distributor gear 19, the gear stages 27, 28, 29 driving hydraulic pumps or pump units 30, 31, 32, 33.
  • the generator G is either mounted on the pump distributor gear 19 (at 37), or with its own mounting 36 in the chassis 1 of the road finisher F, or on a console of the internal combustion engine M, and is driven, for example, via a permanent drive connection 34 (e.g. a belt drive or a cardan shaft ) driven.
  • a permanent drive connection 34 e.g. a belt drive or a cardan shaft
  • the switchable clutch K2 sits on the continuous drive train 22 and, when engaged, drives the gear stages 27, 28, 29 of the pump transfer case 19 and the pumps 30 to 33 via the hollow shaft 26. If the clutch K2 is in the disengaged state, the gear stages 27, 28 , 29 and the pumps 30 to 33 are uncoupled, while the drive pump unit 23 continues to be driven permanently.
  • the generator G can be as in 2 be permanently driven, or is even combined with the drive pump unit 23 and driven by the drive train 22.
  • the generator G is flanged to the pump transfer case 19 and is permanently connected to the crankshaft 20 via the drive train 22.
  • the drive pump unit 23 is connected to a further power branch 39 of the pump distributor gear 19 .
  • the drive pump unit 23 is also uncoupled, while the generator G is permanently driven.
  • a pump 38 is shown as an option on the permanently driven generator G, which also runs permanently and supplies basic functions, for example the respective hydraulically actuated clutch K1, K2, K3.
  • each pump group or each pump unit (several pump stages) 30 to 33, and also the drive pump unit 23, is assigned a switchable clutch K3, expediently in the respective power branch of the pump distributor gear 19.
  • the switchable clutch K2 can be omitted and the output train 22 can be permanently connected to the gear stage 27 in the pump transfer case 19 .
  • a clutch K3 could also be provided there.
  • the pumps 30 to 33, 23 can be uncoupled from the power branches in the pump transfer case 19 via the individual clutches K3, which can be switched in groups or together.
  • the internal combustion engine M then drives only the output train 22 and, if necessary, the gear stages 27, 28, 29 of the pump transfer case 19 and the generator G permanently.
  • clutch K1 is switched to the disengaged state for starting and, if necessary, during the warm-up phase of internal combustion engine M, so that all drag loads are decoupled from crankshaft 20 or drive train 22 and the internal combustion engine starts more easily or reaches its operating temperature more quickly. As soon as the road finisher begins its paving work run or transport run, clutch K1 is engaged so that all functional assemblies are driven.
  • the generator G runs permanently.
  • clutch K2 is disengaged to start and, if necessary, warm up internal combustion engine M, so that pump groups 30 to 33 and, if necessary, drive pump unit 23 are uncoupled, or only drive pump unit 23 and generator G are permanently driven.
  • the drive pump unit 23 is centrally flanged to the pump transfer case 19, then the road finisher can carry out the transport journey at a high transport speed and more economical fuel consumption when the clutch K2 is in the disengaged state, since the towing loads of the other functional assemblies do not have to be overcome.
  • the permanently driven generator G can heat the heating devices H to the operating temperature when the road finisher is at a standstill before the other functional assemblies are coupled via the clutch K2. If the drive pump unit 23 is also permanently driven, the road finisher F can travel at high transport speed and with good fuel consumption without unnecessary towing loads.
  • the individual switchable clutches K3 in 3 enable each functional assembly to be driven or uncoupled as required, and individually optimize the energy balance of the internal combustion engine M either for starting and warming up, for transport or for heating up the heating devices.
  • the respective clutch K1, K2, K3 can optionally also be actuated during interruptions in the paving work of the road finisher F, e.g. while waiting for a delivery of fresh paving material.
  • the respective clutch K1, K2, K3 can be actuated by the vehicle driver in the driver's cab 3 or by the accompanying personnel at an external control station, for example on the screed B, or by means of appropriate programming fully or semi-automatically by the control device of the road finisher, in which case monitoring and/or detection devices are provided, which determine an operating situation in which the decoupling or connection of certain towing loads is expedient.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Arrangement Of Transmissions (AREA)
EP09006978.2A 2009-05-25 2009-05-25 Straßenfertiger Active EP2256248B2 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP09006978.2A EP2256248B2 (de) 2009-05-25 2009-05-25 Straßenfertiger
DE502009000291T DE502009000291D1 (de) 2009-05-25 2009-05-25 Straßenfertiger und Verfahren
US12/722,478 US8356958B2 (en) 2009-05-25 2010-03-11 Paver and method
CN2010101581333A CN101899808B (zh) 2009-05-25 2010-04-28 铺路机及方法
JP2010106227A JP4977231B2 (ja) 2009-05-25 2010-05-06 舗装機械およびその制御方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09006978.2A EP2256248B2 (de) 2009-05-25 2009-05-25 Straßenfertiger

Publications (3)

Publication Number Publication Date
EP2256248A1 EP2256248A1 (de) 2010-12-01
EP2256248B1 EP2256248B1 (de) 2011-01-12
EP2256248B2 true EP2256248B2 (de) 2022-03-09

Family

ID=41066256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09006978.2A Active EP2256248B2 (de) 2009-05-25 2009-05-25 Straßenfertiger

Country Status (5)

Country Link
US (1) US8356958B2 (ja)
EP (1) EP2256248B2 (ja)
JP (1) JP4977231B2 (ja)
CN (1) CN101899808B (ja)
DE (1) DE502009000291D1 (ja)

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DE102009041062A1 (de) * 2009-07-31 2011-02-10 Dynapac Gmbh Straßenfertiger und Verfahren zum Starten eines Verbrennungsmotors eines Straßenfertigers
ES2470319T3 (es) * 2011-03-18 2014-06-23 Desch Antriebstechnik Gmbh & Co. Kg Dispositivo de accionamiento y dispositivo de máquina de trabajo
JP5066662B1 (ja) * 2011-10-19 2012-11-07 範多機械株式会社 道路舗装車両
US8529152B1 (en) * 2012-03-28 2013-09-10 Caterpillar Paving Products Inc. Resistive braking via screed heating
DE202012003689U1 (de) * 2012-04-10 2012-05-02 Joseph Vögele AG Baumaschine mit Signalisierungseinrichtung
US8636442B1 (en) 2012-12-14 2014-01-28 Caterpillar Paving Products Inc. Integrated generator for screed plate heat up
JP6192459B2 (ja) * 2013-09-20 2017-09-06 住友建機株式会社 道路舗装機械
US9200415B2 (en) * 2013-11-19 2015-12-01 Caterpillar Paving Products Inc. Paving machine with automatically adjustable screed assembly
JP6162613B2 (ja) * 2014-01-17 2017-07-12 住友建機株式会社 道路舗装機械
US20150337504A1 (en) * 2014-05-20 2015-11-26 Caterpillar Paving Products Inc. Screed Vibration System
DE102014012043A1 (de) * 2014-08-18 2016-02-18 Dynapac Gmbh Verfahren zum Betreiben einer selbstfahrenden Straßenbaumaschine
DE102015012298A1 (de) 2015-09-23 2017-03-23 Abg Allgemeine Baumaschinen-Gesellschaft Mbh Verfahren zum Betrieb eines selbstfahrenden Straßenfertigers und Straßenfertiger hierfür
MX2018009899A (es) * 2016-02-29 2018-09-07 Illinois Tool Works Paneles de control para sistemas de energia.
US20160186389A1 (en) * 2016-03-10 2016-06-30 Caterpillar Paving Products Inc. Method of warming paving machines
EP3558743B1 (en) * 2016-12-22 2022-11-02 Scania CV AB Power take-off and parts thereof
DE102017009248B4 (de) 2017-01-02 2020-10-01 Bomag Gmbh Kleinfertiger
US11214930B2 (en) 2018-02-19 2022-01-04 McAnany Construction, Inc. System and method for modifying and repaving paved surfaces
PL3569764T3 (pl) 2018-05-15 2021-12-27 Joseph Vögele AG Sposób przewidywanego sterowania układarką
EP4043260A1 (en) 2021-02-10 2022-08-17 Volvo Construction Equipment AB Hydraulic auxiliary generator drive
EP4357527A1 (en) 2022-10-21 2024-04-24 Volvo Construction Equipment AB Hydraulic paver system, a method, and a control unit for operating an electric paver in different operation modes, an electric paver for constructing a road surface, a computer program, and a computer readable medium

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DE102006061162A1 (de) † 2006-12-22 2008-06-26 Still Gmbh Antriebssystem für ein Flurförderzeug

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DE2112327A1 (de) † 1971-03-15 1972-10-12 Demag Baumaschinen Gmbh Hydraulischer Antrieb fuer einen Strassendeckenfertiger
DE3403025A1 (de) † 1983-10-31 1985-05-15 Automaten AG, Alpnach Arbeitsfahrzeug mit zusatzaggregaten
DE20316481U1 (de) † 2003-10-27 2005-03-17 Joseph Voegele Ag Straßenfertiger
DE102006061162A1 (de) † 2006-12-22 2008-06-26 Still Gmbh Antriebssystem für ein Flurförderzeug

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Also Published As

Publication number Publication date
US20100296866A1 (en) 2010-11-25
US8356958B2 (en) 2013-01-22
CN101899808B (zh) 2012-08-08
CN101899808A (zh) 2010-12-01
EP2256248A1 (de) 2010-12-01
JP2010270588A (ja) 2010-12-02
DE502009000291D1 (de) 2011-02-24
EP2256248B1 (de) 2011-01-12
JP4977231B2 (ja) 2012-07-18

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