EP0489969B1 - Finisher - Google Patents

Finisher Download PDF

Info

Publication number
EP0489969B1
EP0489969B1 EP90124254A EP90124254A EP0489969B1 EP 0489969 B1 EP0489969 B1 EP 0489969B1 EP 90124254 A EP90124254 A EP 90124254A EP 90124254 A EP90124254 A EP 90124254A EP 0489969 B1 EP0489969 B1 EP 0489969B1
Authority
EP
European Patent Office
Prior art keywords
road finisher
drives
generator
finisher according
phase
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.)
Expired - Lifetime
Application number
EP90124254A
Other languages
German (de)
French (fr)
Other versions
EP0489969A1 (en
EP0489969B2 (en
Inventor
Volker Dr. Ing. Beyse
Jürgen Dipl.-Ing. Angelis
Roland Dipl.-Ing. Grundl
Alfred Dr. Ing. Ulrich
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=8204842&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0489969(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to DE59006642T priority Critical patent/DE59006642D1/en
Priority to ES90124254T priority patent/ES2057345T5/en
Priority to DK90124254T priority patent/DK0489969T4/en
Priority to EP90124254A priority patent/EP0489969B2/en
Priority to AT90124254T priority patent/ATE109232T1/en
Application filed by Joseph Voegele AG filed Critical Joseph Voegele AG
Priority to JP3327534A priority patent/JPH081046B2/en
Publication of EP0489969A1 publication Critical patent/EP0489969A1/en
Publication of EP0489969B1 publication Critical patent/EP0489969B1/en
Application granted granted Critical
Publication of EP0489969B2 publication Critical patent/EP0489969B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

  • the invention relates to a paver specified in the preamble of claim 1.
  • a self-driving road paver has developed an overall concept in decades of development that has become practically independent of the size and purpose of the global standard.
  • An internal combustion engine as the primary drive provides the drive energy for almost all secondary drives of the functional components designed as hydrostatic drive units.
  • the hydrostatic drive principle requires hydraulic pumps, hydraulic motors, complex gears, pipes, hoses, switching, control and pressure valves, filters, coolers and tanks for the hydraulic medium as well as complex control devices. Under the rough working conditions of the paver, wear cannot be avoided, which necessitates intensive maintenance or repairs, in which the environment is polluted by escaping hydraulic medium.
  • Hydraulic medium also escapes in the event of poor maintenance, improper operation, damage or in the event of functional assembly operations that require the hydraulic lines to be disconnected and reconnected or the hydraulic circuits to be tampered with.
  • Environmentally friendly, but expensive hydraulic media can alleviate these disadvantages; when these pavers are operated in water protection areas, on rivers, lakes and dikes, the environmental hazard is nevertheless not acceptable.
  • Another disadvantage of the known concept is that the internal combustion engine works as a primary drive only partially with optimal performance due to varying power consumption. This results in wasted fuel, additional exhaust gases, noise pollution in the environment and an unfavorable overall efficiency of energy use.
  • the high installation and maintenance costs for the hydrostatic drive systems and their accessories are labor and cost intensive.
  • the hydraulic lines some of which are large in cross-section and can be installed without kinks, require expensive construction measures on the paver and take up a lot of space.
  • adjusting devices for the auger, for a distributor base part and for a vibrating screed part are designed to be mechanically, hydraulically or electromechanically operated with relatively little power.
  • metering drives, valves, regulating flaps and the control electronics are operated electrically.
  • Powerful secondary drives of the chassis, a crusher, a mixer, the screed itself, the steering, and the like, are hydraulically driven, the hydraulic drive function being derived from a main motor unit.
  • the invention has for its object to provide a new and environmentally friendly overall concept for a paver, which enables an optimized weight distribution and an improved overall efficiency with improved use of space.
  • an environmentally friendly paver with optimized weight distribution is created thanks to the powerful but electrical secondary drives, which are supplied with power by the generator coupled to the primary drive. Maintenance and conversion work, repairs and possible damage to the electrical components and the power supply do not result in any significant environmental pollution.
  • the electrically drivable secondary drives take up less space than the hydrostatic drive systems used for the same functions.
  • the electrically drivable secondary drives can be isolated and placed specifically for optimized weight distribution. This is advantageous if at least the drive units of the travel drive are electrically operated secondary drives.
  • the installation effort for the power supply and control is low.
  • the relatively small cross-section electrical supply lines and control lines can be kinked and laid without restriction.
  • the embodiment according to claim 2 is particularly suitable for applications in which any environmental pollution caused by hydraulic medium is excluded and the noise pollution should be minimized.
  • the alternative embodiment according to claim 3 is also expedient, in which only secondary drives designed as constant drives for low-power components are hydrostatic drives, the hydraulic pumps of which are in drive connection with at least one three-phase motor connected to the generator.
  • Such constant drives are subject to almost no wear.
  • the internal combustion engine can be on its optimum performance because the constant drives draw their electrical drive energy from the generator and - if this should be necessary - are controlled electrically and / or hydraulically.
  • the alternative embodiment according to claim 4 has the advantage of main and particularly powerful electrically driven secondary drives, which would be particularly susceptible to wear and damage when hydraulically driven, while such secondary drives as constant drives are conventionally driven as hydrostatic units via a power take-off from the primary drive, which are less powerful and relative maintenance, wear and repairs are less critical.
  • the internal combustion engine is operated at its optimum performance.
  • the constant drives are not critical with regard to the environmental hazard and are also less important than the electrically driven, powerful secondary drives with regard to the weight distribution and the installation effort.
  • the embodiment according to claim 5 is expedient in order to keep the working speed of the internal combustion engine at optimum power regardless of the working speed of the three-phase generator and to be able to minimize the size of the generator.
  • the speed of the pumps of the hydrostatic units can be selected in the embodiment according to claim 6 regardless of the speed of the three-phase generator.
  • the internal combustion engine is operated at optimum performance.
  • the embodiment of claim 7 is advantageous with regard to the space requirement and the lowest possible energy transmission losses.
  • the embodiment according to claim 8 is particularly important.
  • Three-phase motors are distinguished by a long service life and freedom from maintenance, since they contain no wearing parts.
  • direct current motors with slip rings or collectors and brushes would also be conceivable.
  • the three-phase generator works with low efficiency, is light and compact. With the purely electrical overall concept of the paver, the high weight of the hydraulic medium with its storage, filter, cooling and high-pressure-resistant pipe equipment is saved. Even when using some hydrostatic drive systems for the constant drives, the space required for the hydraulic medium is noticeably less.
  • claims 10 and 11 are expedient with a view to optimal energy utilization and a long service life even during continuous operation.
  • the type of cooling system and the cooling medium used are matched to the particular conditions of use of the paver.
  • the heater is supplied by the generator.
  • the performance of the heating can be controlled sensitively.
  • control lines have a relatively small cross-section and also in confined spaces to practically every point in or on the paver, i.e. can also be laid in the screed.
  • the measure of claim 16 is advantageous because the three-phase motors and their frequency converters can each be positioned so that the space available in the paver is well used and an optimized weight distribution is achieved.
  • a driver's cab 3 is arranged on the substructure 1 and has an internal combustion engine 4, for example a diesel engine, as the primary drive P.
  • a material bunker 5 with adjustable bunker walls is arranged in the front part of the paver F, from which a material conveyor 6, for example two scraper conveyor belts or at least one conveyor screw, is arranged to one at the rear end of the tractor Z.
  • Material distribution device 7 lead, for example, to two distribution screws.
  • lateral arms 8 are articulated, which carry the screed B in which, among other things, tamper devices 10, pressing elements 11, vibration devices 13 and width adjustment devices 9 are arranged in addition to compaction units which are not shown in any more detail.
  • Each boom 8 can be raised with a rear lifting device 14 and is adjustable by means of a front leveling device 15 for leveling the screed B.
  • a drive unit 16 is provided on each side.
  • the bunker walls can be adjusted by means of adjusting devices 17.
  • At least one heating device 18, which is regulated or unregulated, is accommodated in the paver F at the point required for this.
  • Control devices 52 are provided in the driver's cab 3 for the individual secondary drives.
  • There is also a cooling system K which is either an internal or external cooling system.
  • Fig. 2 it can be seen in detail that in the substructure 1 of the tractor Z the internal combustion engine 4 is installed transversely, which is flanged together with a three-phase generator 19.
  • a three-phase generator 19 In the three-phase generator 19, necessary electronic components are provided for its regulation and operation.
  • frequency converters 24, 25, 26, 27 for secondary drives 36, 37, 39, 40 are provided at suitable points, the three-phase motors with associated gears 16a, 7a, e.g. for the travel drives 16 and the material distribution devices 7.
  • Further secondary drives, which are provided in the tractor Z and in the screed B, are not shown for the sake of clarity.
  • Fig. 2 illustrates - as I said - for example the arrangement of important secondary drives.
  • the internal combustion engine 4 drives the three-phase generator 19 via a mechanical connection 28.
  • the latter is connected via a three-phase bus 29 to secondary drives 30, 31, 32a, 32b, 33, 34, 35, 36, 37, 38, 39, 40 having three-phase motors M. also with a regulated or unregulated heater 42 of the heater 18.
  • a frequency converter W is assigned to each three-phase motor M.
  • a power rectifier 54 or alternatively a star-delta switchover is provided in a power control 41 for the heater 42.
  • the frequency converter W and the converter U are connected to the control units 52 in the driver's cab 3 via control lines 53.
  • the speed of each three-phase motor can be changed via the control device 52.
  • the three-phase motor 30 drives the adjusting device 17 for the bunker walls.
  • the three-phase motor 31 drives the width adjustment device 9 of the screed B.
  • the three-phase motor 32a serves as a drive for the leveling devices 15.
  • the three-phase motor 32b serves as a drive for the lifting devices 14.
  • the three-phase motor 33 serves as a drive for the tamper devices 10 of the screed B.
  • the three-phase motor 34 serves as a drive for the vibration devices 13 of the screed B.
  • the three-phase motors 35, 36 drive the drive wheels 16 of the travel drive via the gears 16a.
  • the three-phase motors 37, 38 drive the gear 6a for the material conveying devices 6.
  • the three-phase motors 39 and 40 drive the material distributing devices 7 via the gear 7a.
  • the heater 42 also draws the current required for the operation from the rail 29.
  • the paver still has other, not described Contains secondary drives for other functions, these can be supplied in the same way by the alternator 19 and controlled accordingly.
  • Mechanical devices e.g. Gearboxes which convert the rotary movement of the three-phase motors M into the functional movement required in each case are not shown.
  • FIG. 4 differs from the embodiment of FIG. 3 in that particularly important and powerful primary drives are operated electrically via the three-phase generator 19, while devices 10, 17, 11 and 13 designed as constant drives are simultaneously driven by means of smaller hydrostatic drive units , whose hydraulic pumps 46, 47, 48, 49 are mechanically driven by a three-phase motor 44 which is connected to the supply line 29 via a line 43.
  • the traction drives 16, the material conveying devices 6 and the material distributing devices 7, and the heating devices 18 with their heating 42 are operated electrically via the three-phase AC motors M.
  • a gear 50 is provided between the three-phase generator 19 and the internal combustion engine 4.
  • a power take-off 51 branches off from the transmission 50 and drives the hydraulic pumps 46-49 of the hydrostratic drive units designed as constant drives, which correspond to those of FIG. 4. over the supply line 29, the secondary drives explained in FIG. 4 are electrically driven.
  • the paver should have further secondary drives for further work functions, these can be operated depending on the function either hydrostatically or electrically as indicated in FIGS. 4 and 5.
  • the hydrostatic drive units are small and designed for low outputs. Irrespective of whether it is an internal or an external cooling system, the cooling system K can be operated with the electrical energy provided by the three-phase generator 19 in order to cool the three-phase motors sufficiently.
  • the internal combustion engine 4 runs at its optimum performance, for example at 1800 rpm.
  • the 4-pole alternator generates a 3-phase voltage system with a constant frequency of 60 Hz.
  • the voltage is first rectified and converted in an inverter into a 3-phase system with variable frequency and voltage.
  • the torque, speed and power of the connected three-phase motor change in accordance with this frequency and voltage.
  • the three-phase motor 44 drives the hydraulic pumps 46-49 at a constant speed. If necessary, a frequency converter is also assigned to this three-phase motor 44.
  • the hydrostatic drive units are controlled in a conventional manner.
  • the hydraulic pumps 46-49 are driven either at the speed of the internal combustion engine 4 or at a speed that can be selected via the power take-off 51.
  • the hydrostatic drive units are then controlled in a conventional manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Non-Reversible Transmitting Devices (AREA)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
  • Magnetic Heads (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

In a road finisher (F), in particular a self-propelled road finisher with tractor (2) and built-in beam (B), which has an internal combustion engine (4) serving as primary drive (8) and a multiplicity of secondary drives (30-42) for the functions in and on the road finisher which can be controlled individually and are in drive connection with the primary drive (P), electric secondary drives (30-42) are used which are arranged at the respective functional components and are attached to at least one generator (19) coupled to the primary drive (P). <IMAGE>

Description

Die Erfindung betrifft einen Fertiger der im Oberbegriff des Patentanspruchs 1 angegebenen Art.The invention relates to a paver specified in the preamble of claim 1.

Bei selbstfahrenden Straßenfertigern hat sich in jahrzehntelanger Entwicklung ein Gesamtkonzept durchgesetzt, das praktisch unabhängig von der Größe und vom Einsatzzweck weltweiter Standard geworden ist. Ein Verbrennungsmotor als Primärantrieb stellt die Antriebsenergie für nahezu alle als hydrostatische Antriebsaggregate ausgebildeten Sekundärantriebe der Funktionskomponenten bereit. Das hydrostatische Antriebsprinzip erfordert Hydraulikpumpen, Hydraulikmotoren, aufwendige Getriebe, Rohrleitungen, Schläuche, Schalt-, Steuer- und Druckventile, Filter, Kühler und Tanks für das Hydraulikmedium sowie aufwendige Steuereinrichtungen. Unter den groben Arbeitsbedingungen des Fertigers läßt sich Verschleiß nicht vermeiden, der zu intensiver Wartung oder zu Reparaturen zwingt, bei denen durch austretendes Hydraulikmedium die Umwelt verschmutzt wird. Auch bei mangelnder Wartung, bei unsachgemäßem Betrieb, bei Schäden oder bei funktionsnotwendigen Montagevorgängen, die ein Lösen und Neuanschließen von Hydraulikleitungen oder Eingriffe in Hydraulikkreisläufe erfordern, tritt Hydraulikmedium aus. Umweltfreundliche, aber teure Hydraulikmedien können diese Nachteile zwar mindern; bei Betrieb dieser Fertiger in Wasserschutzgebieten, an Flüssen, Seen und Deichen, ist die Umweltgefährdung trotzdem nicht akzeptabel. Ein weiterer Nachteil des bekannten Konzepts liegt darin, daß der Verbrennungsmotor als Primärantrieb wegen varierender Leistungsabnahme nur zum Teil mit optimaler Leistung arbeitet. Daraus resultieren vergeudeter Treibstoff, zusätzliche Abgase, eine Geräuschbelästigung der Umwelt und ein ungünstiger Gesamtwirkungsgrad der Energieausnutzung. Herstellungstechnisch ist der hohe Installations- und Wartungsaufwand für die hydrostatischen Antriebssysteme und deren Zubehör arbeits- und kostenintensiv. Die zum Teil großquerschnittigen und knickstellenfrei zu montierenden Hydraulikleitungen bedingen teure Konstruktionsmaßnahmen am Fertiger und beanspruchen viel Platz.A self-driving road paver has developed an overall concept in decades of development that has become practically independent of the size and purpose of the global standard. An internal combustion engine as the primary drive provides the drive energy for almost all secondary drives of the functional components designed as hydrostatic drive units. The hydrostatic drive principle requires hydraulic pumps, hydraulic motors, complex gears, pipes, hoses, switching, control and pressure valves, filters, coolers and tanks for the hydraulic medium as well as complex control devices. Under the rough working conditions of the paver, wear cannot be avoided, which necessitates intensive maintenance or repairs, in which the environment is polluted by escaping hydraulic medium. Hydraulic medium also escapes in the event of poor maintenance, improper operation, damage or in the event of functional assembly operations that require the hydraulic lines to be disconnected and reconnected or the hydraulic circuits to be tampered with. Environmentally friendly, but expensive hydraulic media can alleviate these disadvantages; when these pavers are operated in water protection areas, on rivers, lakes and dikes, the environmental hazard is nevertheless not acceptable. Another disadvantage of the known concept is that the internal combustion engine works as a primary drive only partially with optimal performance due to varying power consumption. This results in wasted fuel, additional exhaust gases, noise pollution in the environment and an unfavorable overall efficiency of energy use. In terms of production technology, the high installation and maintenance costs for the hydrostatic drive systems and their accessories are labor and cost intensive. The hydraulic lines, some of which are large in cross-section and can be installed without kinks, require expensive construction measures on the paver and take up a lot of space.

Bei einem aus FR-A-21 35 526 bekannten Fertiger sind relativ leistungsarm betreibbare Verstelleinrichtungen für die Verteilerschnecke, für ein Verteilerbodenteil und für ein Vibrationsbohlenteil mechanisch, hydraulisch oder elektromechanisch ausgebildet.In a paver known from FR-A-21 35 526, adjusting devices for the auger, for a distributor base part and for a vibrating screed part are designed to be mechanically, hydraulically or electromechanically operated with relatively little power.

Bei einer aus EP-A-03 16 752 bekannten Einrichtung zur Sanierung von Straßenaufbauschichten werden Dosierantriebe, Ventile, Regelklappen sowie die Steuerelektronik elektrisch betrieben. Leistungsstarke Sekundärantriebe des Fahrwerks, eines Brechwerks, eines Mischwerks, die Einbaubohle selbst, die Lenkung, und dgl., werden hydraulisch angetrieben, wobei die hydraulische Antriebsfunktion von einer Hauptmotoreinheit abgeleitet wird.In a device known from EP-A-03 16 752 for the rehabilitation of road surface layers, metering drives, valves, regulating flaps and the control electronics are operated electrically. Powerful secondary drives of the chassis, a crusher, a mixer, the screed itself, the steering, and the like, are hydraulically driven, the hydraulic drive function being derived from a main motor unit.

Der Erfindung liegt die Aufgabe zugrunde, ein neues und umweltfreundliches Gesamtkonzept für einen Fertiger zu schaffen, das bei verbesserter Raumnutzung eine optimierte Gewichtsverteilung und einen verbesserten Gesamtwirkungsgrad ermöglich.The invention has for its object to provide a new and environmentally friendly overall concept for a paver, which enables an optimized weight distribution and an improved overall efficiency with improved use of space.

Die gestellte Aufgabe wird erfindungsgemäß mit den im Patentanspruch 1 enthaltenen Merkmalen gelöst.The object is achieved according to the invention with the features contained in claim 1.

Mit diesen neuen Gesamtkonzept wird dank der leistungsstarken aber elektrischen Sekundärantriebe, die von den mit dem Primärantrieb gekoppelten Generator mit Strom versorgt werden, ein umweltfreundlicher Fertiger mit optimierter Gewichtsverteilung geschaffen. Wartungs- und Umstellarbeiten, Reparaturen und eventuelle Schäaden an den elektrischen Komponenten und der Stromversorgung führen zu keiner nennenswerten Umweltbelastung. Die elektrisch antreibbare Sekundärantriebe beanspruchen mit ihrem Zubehör weniger Platz als für die gleichen Funktionen eingesetzte hydrostatische Antriebssysteme. Ferner lassen sich die elektrisch antreibbaren Sekundärantriebe wegen der einfachen Leitungsverbindungen vereinzelt und zur optimierten Gewichtsverteilung gezielt plazieren. Dies ist vorteilhaft, wenn zumindest die Antriebsaggregate des Fahrantriebs elektrisch betreibbare Sekundärantriebe sind. Der Installationsaufwand für die Stromversorgung und Steuerung ist gering. Die relativ kleinquerschnittigen elektrischen Versorgungsstränge und Steuerleitungen lassen sich geknickt und unbeschränkt verlegen. Durch Weglassen von Hydraulikmedium als Energieträger, wegen des guten Wirkungsgrades der elektrischen Sekundärantriebe und mit der Treibstoffeinsparung aufgrund des an seinem Leistungsoptimum betreibbaren Verbrennungsmotor werden insgesamt ein verbesserter Wirkungsgrad und eine höhere Wirtschaftlichkeit des Fertigers erreicht.With this new overall concept, an environmentally friendly paver with optimized weight distribution is created thanks to the powerful but electrical secondary drives, which are supplied with power by the generator coupled to the primary drive. Maintenance and conversion work, repairs and possible damage to the electrical components and the power supply do not result in any significant environmental pollution. With their accessories, the electrically drivable secondary drives take up less space than the hydrostatic drive systems used for the same functions. Furthermore, because of the simple cable connections, the electrically drivable secondary drives can be isolated and placed specifically for optimized weight distribution. This is advantageous if at least the drive units of the travel drive are electrically operated secondary drives. The installation effort for the power supply and control is low. The relatively small cross-section electrical supply lines and control lines can be kinked and laid without restriction. By omitting hydraulic medium as an energy source, because of the good efficiency of the electrical secondary drives and with the fuel saving due to the internal combustion engine that can be operated at its optimum performance, an improved efficiency and greater economy of the paver are achieved overall.

Die Ausführungsform gemäß Anspruch 2 ist für Einsatzzwecke besonders geeignet, bei denen jegliche Umweltbelastung durch Hydraulikmedium ausgeschlossen und die Geräuschbelastung minimiert sein soll.The embodiment according to claim 2 is particularly suitable for applications in which any environmental pollution caused by hydraulic medium is excluded and the noise pollution should be minimized.

Jedoch ist auch die alternative Ausführungsform gemäß Anspruch 3 zweckmäßig, bei der nur noch als Konstantantriebe ausgebildete Sekundärantriebe für leistungsarme Komponenten hydrostatische Antriebe sind, deren Hydraulikpumpen mit wenigstens einem an den Generator angeschlossenen Drehstrommotor in Antriebsverbindung stehen. Solche Konstantantriebe unterliegen nahezu keinem Verschleiß. Der Verbrennungsmotor kann an seinem Leistungsoptimum betrieben werden, weil die Konstantantriebe ihre elektrische Antriebsenergie vom Generator beziehen und - falls dies notwendig sein sollte - elektrisch und/oder hydraulisch gesteuert werden.However, the alternative embodiment according to claim 3 is also expedient, in which only secondary drives designed as constant drives for low-power components are hydrostatic drives, the hydraulic pumps of which are in drive connection with at least one three-phase motor connected to the generator. Such constant drives are subject to almost no wear. The internal combustion engine can be on its optimum performance because the constant drives draw their electrical drive energy from the generator and - if this should be necessary - are controlled electrically and / or hydraulically.

Die alternative Ausführungsform gemäß Anspruch 4 hat den Vorteil hauptsächlicher und besonders leistungsstarker elektrisch angetriebener Sekundärantriebe, die hydraulisch angetrieben besonders verschleiß- und schadensträchtig wären, während solche Sekundärantriebe als Konstantantriebe auf herkömmliche Weise als hydrostatische Aggregate über einen Nebenantrieb vom Primärantrieb getrieben werden, die leistungsschwächer und bezüglich der Wartung, des Verschleißes und der Reparaturen unkritischer sind. Der Verbrennungsmotor wird an seinem Leistungsoptimum betrieben. Bei beiden Ausführungsformen gemäß den Ansprüchen 3 und 4 sind die Konstantantriebe bezüglich der Umweltgefährdung unkritisch und auch hinsichtlich der Gewichtsverteilung bzw. des Installationsaufwandes weniger bedeutsam als die elektrisch getriebenen, leistungsstarken Sekundärantriebe.The alternative embodiment according to claim 4 has the advantage of main and particularly powerful electrically driven secondary drives, which would be particularly susceptible to wear and damage when hydraulically driven, while such secondary drives as constant drives are conventionally driven as hydrostatic units via a power take-off from the primary drive, which are less powerful and relative maintenance, wear and repairs are less critical. The internal combustion engine is operated at its optimum performance. In both embodiments according to claims 3 and 4, the constant drives are not critical with regard to the environmental hazard and are also less important than the electrically driven, powerful secondary drives with regard to the weight distribution and the installation effort.

Die Ausführungsform gemäß Anspruch 5 ist zweckmäßig, um die Arbeitsdrehzahl des Verbrennungsmotors unabhängig von der Arbeitsdrehzahl des Drehstromgenerators beim Leistungsoptimum zu halten und die Baugröße des Generators minimieren zu können.The embodiment according to claim 5 is expedient in order to keep the working speed of the internal combustion engine at optimum power regardless of the working speed of the three-phase generator and to be able to minimize the size of the generator.

Die Drehzahl der Pumpen der hydrostatischen Aggregate läßt sich bei der Ausführungsform gemäß Anspruch 6 unabhängig von der Drehzahl des Drehstromgenerators wählen. Der Verbrennungsmotor wird bei einem Leistungsoptimum betrieben.The speed of the pumps of the hydrostatic units can be selected in the embodiment according to claim 6 regardless of the speed of the three-phase generator. The internal combustion engine is operated at optimum performance.

Bezüglich des Platzbedarfs und möglichst geringer Energieübertragungsverluste ist die Ausführungsform von Anspruch 7 vorteilhaft.The embodiment of claim 7 is advantageous with regard to the space requirement and the lowest possible energy transmission losses.

Besonders wichtig ist die Ausführungsform gemäß Anspruch 8. Drehstrommotoren zeichnen sich durch hohe Lebensdauer und Wartungsfreiheit aus, da sie keine Verschleißteile enthalten. Denkbar wären jedoch auch Gleichstrommotoren mit Schleifringen bzw. Kollektoren und Bürsten. Der Drehstromgenerator arbeitet mit günstigem Wirkungsgrad, ist leicht und baut kompakt. Bei rein elektrischem Gesamtkonzept des Fertigers wird das hohe Gewicht des Hydraulikmediums mit seinen Speicher-, Filter- , Kühl- und hochdrukfesten Leitungseinrichtungen eingespart. Selbst bei Einsatz einiger hydrostatischer Antriebssysteme für die Konstantantriebe ist der Platzbedarf für das Hydraulikmedium spürbar geringer.The embodiment according to claim 8 is particularly important. Three-phase motors are distinguished by a long service life and freedom from maintenance, since they contain no wearing parts. However, direct current motors with slip rings or collectors and brushes would also be conceivable. The three-phase generator works with low efficiency, is light and compact. With the purely electrical overall concept of the paver, the high weight of the hydraulic medium with its storage, filter, cooling and high-pressure-resistant pipe equipment is saved. Even when using some hydrostatic drive systems for the constant drives, the space required for the hydraulic medium is noticeably less.

Hohe Funktionssicherheit unter den groben Arbeitsbedingungen eines Fertigers ist bei der Ausführungsform gemäß Anspruch 9 auch bei hoher zu übertragender Stromleitung gewährleistet.High functional reliability under the rough working conditions of a paver is guaranteed in the embodiment according to claim 9 even with a high power line to be transmitted.

Im Hinblick auf optimale Energieausnutzung und hohe Lebensdauer auch bei Dauerbetrieb sind die alternativen Ausführungsformen der Ansprüche 10 und 11 zweckmäßig.The alternative embodiments of claims 10 and 11 are expedient with a view to optimal energy utilization and a long service life even during continuous operation.

Die Art des Kühlsystems bzw. das jeweils verwendete Kühlmedium werden auf die jeweiligen Einsatzbedingungen des Fertigers abgestimmt.The type of cooling system and the cooling medium used are matched to the particular conditions of use of the paver.

Eine bezüglich der Umweltgefährdung günstige Ausführungsform geht aus Anspruch 12 hervor, bei der wichtige und leistungsstarke Sekundärantriebe elektrisch angetrieben werden.A favorable embodiment with respect to the environmental hazard emerges from claim 12, in which important and powerful secondary drives are electrically driven.

Bei der Ausführungsform gemäß Anspruch 13 wird die Heizung vom Generator versorgt. Die Leistung der Heizung ist feinfühlig steuerbar.In the embodiment according to claim 13, the heater is supplied by the generator. The performance of the heating can be controlled sensitively.

Eine kostengünstigere und umweltfreundliche Ausführungsform geht aus Anspruch 14 hervor, bei der Sekundärantriebe geringerer Leistungsaufnahme hydraulisch und nicht elektrisch vom Generator angetrieben werden.A more cost-effective and environmentally friendly embodiment is evident from claim 14, in which secondary drives with lower power consumption are driven hydraulically and not electrically by the generator.

Die Ausführungsform gemäß Anspruch 15 ist vorteilhaft, weil die Steuerleitungen relativ kleinquerschnittig und auch unter engen Platzverhältnissen zu praktisch jedem Punkt im oder am Fertiger, d.h. auch in die Einbaubohle, verlegbar sind.The embodiment according to claim 15 is advantageous because the control lines have a relatively small cross-section and also in confined spaces to practically every point in or on the paver, i.e. can also be laid in the screed.

Die Maßnahme von Anspruch 16 ist vorteilhaft, weil die Drehstrommotoren und deren Frequenzumrichter jeweils so positionierbar sind, daß das Platzangebot im Fertiger gut genützt und eine optimierte Gewichtsverteilung erreicht werden.The measure of claim 16 is advantageous because the three-phase motors and their frequency converters can each be positioned so that the space available in the paver is well used and an optimized weight distribution is achieved.

Anhand der Zeichnungen werden Ausführungsformen des Erfindungsgegenstandes erläutert. Es Zeigen:

  • Fig. 1 eine schematische Seitenansicht eines selbstfahrenden Straßenfertigers mit Einbäubohle,
  • Fig. 2 eine Perspektivansicht eines Teils des Straßenfertigers von Fig. 1,
  • Fig. 3 ein Schaltbild eines vollelektrischen Straßenfertigers,
  • Fig. 4 ein Schaltbild einer alternativen Ausführungsform, nämlich eines teilelektrischen Straßenfertigers,
  • Fig. 5 ein Schaltbild einer weiteren Ausführungsform eines teilelektrischen Straßenfertigers.
Embodiments of the subject matter of the invention are explained with the aid of the drawings. Show it:
  • 1 is a schematic side view of a self-propelled paver with screed,
  • FIG. 2 is a perspective view of part of the paver of FIG. 1;
  • 3 is a circuit diagram of an all-electric paver,
  • 4 shows a circuit diagram of an alternative embodiment, namely a partially electric paver,
  • Fig. 5 is a circuit diagram of another embodiment of a partially electric paver.

Ein Fertiger F gemäß Fig. 1, insbesondere ein selbstfahrender Straßenfertiger mit einer Zugmaschine Z und einer geschleppten Einbaubohle B, weist einen Unterbau 1 mit einem Fahrwerk 2 (Raupenfahrwerk oder Räderfahrwerk) auf. Auf dem Unterbau 1 ist ein Führerstand 3 angeordnet, bei dem sich als Primärantrieb P ein Verbrennungsmotor 4, z.B. ein Dieselmotor, befindet. Im Vorderteil des Fertigers F ist ein Gutbunker 5 mit verstellbaren Bunkerwänden angeordnet, von dem eine Materialfördereinrichtung 6, z.B. zwei Kratzförderbänder oder wenigstens eine Förderschnecke, zu einer am hinteren Ende der Zugmaschine Z angeordneten Materialverteileinrichtung 7 führen, z.B. zu zwei Verteilerschnecken.A paver F according to FIG. 1, in particular a self-propelled paver with a tractor Z and a towed screed B, has a substructure 1 with a chassis 2 (crawler chassis or wheel chassis). A driver's cab 3 is arranged on the substructure 1 and has an internal combustion engine 4, for example a diesel engine, as the primary drive P. A material bunker 5 with adjustable bunker walls is arranged in the front part of the paver F, from which a material conveyor 6, for example two scraper conveyor belts or at least one conveyor screw, is arranged to one at the rear end of the tractor Z. Material distribution device 7 lead, for example, to two distribution screws.

Am Unterbau 1 sind seitliche Ausleger 8 angelenkt, die die Einhaubohle B tragen, in der unter anderem neben nicht näher hervorgehobenen Verdichtungsaggregaten Stampfereinrichtungen 10, Preßelemente 11, Vibrationseinrichtungen 13 und Breitenverstelleinrichtungen 9 angeordnet sind. Jeder Ausleger 8 ist mit einer hinteren Hubeinrichtung 14 anhebbar und zwecks Nivellierung der Einbaubohle B mittels einer vorderen Nivelliereinrichtung 15 verstellbar. Im Fahrantrieb 2 ist an jeder Seite ein Antriebsaggregat 16 vorgesehen. Die Bunkerwände sind mittels Verstelleinrichtungen 17 verstellbar. Wenigstens eine Heizeinrichtung 18, die geregelt oder ungeregelt ist, ist an der dafür erforderlichen Stelle im Fertiger F untergebracht. Im Führerstand 3 sind Steuereinrichtungen 52 für die einzelnen Sekundärantriebe vorgesehen. Ferner ist ein Kühlsystem K vorhanden, das entweder ein Eigen- oder Fremdkühlsystem ist.On the substructure 1, lateral arms 8 are articulated, which carry the screed B in which, among other things, tamper devices 10, pressing elements 11, vibration devices 13 and width adjustment devices 9 are arranged in addition to compaction units which are not shown in any more detail. Each boom 8 can be raised with a rear lifting device 14 and is adjustable by means of a front leveling device 15 for leveling the screed B. In the traction drive 2, a drive unit 16 is provided on each side. The bunker walls can be adjusted by means of adjusting devices 17. At least one heating device 18, which is regulated or unregulated, is accommodated in the paver F at the point required for this. Control devices 52 are provided in the driver's cab 3 for the individual secondary drives. There is also a cooling system K, which is either an internal or external cooling system.

Aus Fig. 2 ist im Detail erkennbar, daß im Unterbau 1 der Zugmaschine Z der Verbrennungsmotor 4 quer eingebaut ist, der mit einem Drehstromgenerator 19 zusammengeflanscht ist. Im Drehstromgenerator 19 sind für dessen Regelung und Betrieb notwendige, elektronische Komponenten vorgesehen. Im Unterbau sind an geeigneten Stellen Frequenzumrichter 24, 25, 26, 27 für Sekundärantriebe 36, 37, 39, 40 vorgesehen, die Drehstrommotoren mit zugehörigen Getrieben 16a, 7a, z.B. für die Fahrantriebe 16 und die Materialverteileinrichtungen 7 sind. Weitere Sekundärantriebe, die in der Zugmaschine Z und in der Einbaubohle B vorgesehen sind, werden der Übersichtlichkeit halber nicht gezeigt.From Fig. 2 it can be seen in detail that in the substructure 1 of the tractor Z the internal combustion engine 4 is installed transversely, which is flanged together with a three-phase generator 19. In the three-phase generator 19, necessary electronic components are provided for its regulation and operation. In the substructure, frequency converters 24, 25, 26, 27 for secondary drives 36, 37, 39, 40 are provided at suitable points, the three-phase motors with associated gears 16a, 7a, e.g. for the travel drives 16 and the material distribution devices 7. Further secondary drives, which are provided in the tractor Z and in the screed B, are not shown for the sake of clarity.

Im Fertiger F können grundsätzlich alle vorhandenen Sekundärantriebe elektrisch vom Drehstromgenerator 19 aus betrieben werden. Fig. 2 verdeutlicht - wie gesagt - beispielsweise die Anordnung wichtiger Sekundärantriebe. Es ist aber auch denkbar, nur ausgewählte Sekundärantriebe elektrisch anzutreiben und beispielsweise als Konstantantriebe ausgelegte Sekundärantriebe als kleinere hydrostatische Antriebsaggregate auszulegen.In the paver F, all existing secondary drives can in principle be operated electrically from the three-phase generator 19. Fig. 2 illustrates - as I said - for example the arrangement of important secondary drives. However, it is also conceivable to drive only selected secondary drives electrically and, for example, to design secondary drives designed as constant drives as smaller hydrostatic drive units.

Gemäß Schaltbild der Fig. 3 sind sämtliche Sekundärantriebe elektrisch angetrieben. Der Verbrennungsmotor 4 treibt über eine mechanische Verbindung 28 den Drehstromgenerator 19. Dieser ist über eine Drehstromsammelschiene 29 mit Drehstrommotoren M aufweisenden Sekundärantrieben 30, 31, 32a, 32b, 33, 34, 35, 36, 37, 38, 39, 40 verbunden, und auch mit einer geregelten oder ungeregelten Heizung 42 der Heizeinrichtung 18.3, all the secondary drives are electrically driven. The internal combustion engine 4 drives the three-phase generator 19 via a mechanical connection 28. The latter is connected via a three-phase bus 29 to secondary drives 30, 31, 32a, 32b, 33, 34, 35, 36, 37, 38, 39, 40 having three-phase motors M. also with a regulated or unregulated heater 42 of the heater 18.

Jedem Drehstrommotor M ist ein Frequenzumrichter W zugeordnet. In einer Leistungssteuerung 41 für die Heizung 42 ist ein Netzgleichrichter 54 oder alternativ eine Stern-Dreieck-Umschaltung vorgesehen. Die Frequenzumrichter W und auch der Umrichter U sind über Steuerleitungen 53 mit den Steuereinheiten 52 im Führerstand 3 verbunden. Über die Steuereinrichtung 52 läßt sich die Drehzahl jedes Drehstrommotors verändern.A frequency converter W is assigned to each three-phase motor M. A power rectifier 54 or alternatively a star-delta switchover is provided in a power control 41 for the heater 42. The frequency converter W and the converter U are connected to the control units 52 in the driver's cab 3 via control lines 53. The speed of each three-phase motor can be changed via the control device 52.

Der Drehstrommotor 30 treibt die Verstelleinrichtung 17 für die Bunkerwände. Der Drehstrommotor 31 treibt die Breitenverstelleinrichtung 9 der Einhaubohle B. Der Drehstrommotor 32a dient als Antrieb für die Nivelliereinrichtungen 15. Der Drehstrommotor 32b dient als Antrieb für die Hubeinrichtungen 14. Der Drehstrommotor 33 dient als Antrieb für die Stampfereinrichtungen 10 der Einbaubohle B. Der Drehstrommotor 34 dient als Antrieb für die Vibrationseinrichtungen 13 der Einbaubohle B. Die Drehstrommotoren 35, 36 treiben über die Getriebe 16a die Antriebsräder 16 des Fahrantriebs. Die Drehstrommotoren 37, 38 treiben die Getriebe 6a für die Materialfördereinrichtungen 6. Die Drehstrommotoren 39 und 40 treiben über Getriebe 7a die Materialverteilereinrichtungen 7. Die Heizung 42 bezieht den zum ßetrieb notwendigen Strom ebenfalls aus der Schiene 29. Sofern der Fertiger noch weitere, nicht beschriebene Sekundärantriebe für weitere Funktionen enthält, können diese auf gleiche Weise vom Drehstromgenerator 19 versorgt und entsprechend gesteuert werden. Mechanische Einrichtungen, z.B. Getriebe, die die Drehbewegung der Drehstrommotoren M in die jeweils benötigte Funktionsbewegung umwandeln, sind nicht gezeigt.The three-phase motor 30 drives the adjusting device 17 for the bunker walls. The three-phase motor 31 drives the width adjustment device 9 of the screed B. The three-phase motor 32a serves as a drive for the leveling devices 15. The three-phase motor 32b serves as a drive for the lifting devices 14. The three-phase motor 33 serves as a drive for the tamper devices 10 of the screed B. The three-phase motor 34 serves as a drive for the vibration devices 13 of the screed B. The three-phase motors 35, 36 drive the drive wheels 16 of the travel drive via the gears 16a. The three-phase motors 37, 38 drive the gear 6a for the material conveying devices 6. The three-phase motors 39 and 40 drive the material distributing devices 7 via the gear 7a. The heater 42 also draws the current required for the operation from the rail 29. Provided that the paver still has other, not described Contains secondary drives for other functions, these can be supplied in the same way by the alternator 19 and controlled accordingly. Mechanical devices, e.g. Gearboxes which convert the rotary movement of the three-phase motors M into the functional movement required in each case are not shown.

Es wäre auch denkbar, mehr als einen Primärantrieb für mehrere Drehstromgeneratoren zu verwenden bzw. von einem Primärantrieb P aus mehrere Drehstromgeneratoren anzutreiben.It would also be conceivable to use more than one primary drive for a plurality of three-phase generators or to drive a plurality of three-phase generators from a primary drive P.

Die Ausführungsform der Fig. 4 unterscheidet sich von der Ausführungsform der Fig. 3 dadurch, daß besonders wichtige und leistungsstarke Primärantriebe elektrisch über den Drehstromgenerator 19 betrieben werden, während gleichzeitig als Konstantantriebe ausgebildete Einrichtungen 10, 17, 11 und 13 mittels kleinerer hydrostatischer Antriebsaggregate angetrieben werden, deren Hydraulikpumpen 46, 47, 48, 49 mechanisch durch einen Drehstrommotor 44 getrieben werden, der über eine Leitung 43 an die Versorgungsleitung 29 angeschlossen ist. Elektrisch betrieben werden hingegen über die Drehstrommotoren M die Fahrantriebe 16, die Materialfördereinrichtungen 6 und die Materialverteileinrichtungen 7, sowie die Heizeinrichtungen 18 mit ihrer Heizung 42.The embodiment of FIG. 4 differs from the embodiment of FIG. 3 in that particularly important and powerful primary drives are operated electrically via the three-phase generator 19, while devices 10, 17, 11 and 13 designed as constant drives are simultaneously driven by means of smaller hydrostatic drive units , whose hydraulic pumps 46, 47, 48, 49 are mechanically driven by a three-phase motor 44 which is connected to the supply line 29 via a line 43. On the other hand, the traction drives 16, the material conveying devices 6 and the material distributing devices 7, and the heating devices 18 with their heating 42 are operated electrically via the three-phase AC motors M.

Bei der Ausführungsform gemäß Fig. 5 ist zwischen dem Drehstromgenerator 19 und dem Verbrennungsmotor 4 ein Getriebe 50 vorgesehen. Vom Getriebe 50 zweigt ein Nebenabtrieb 51 ab, der die Hydraulikpumpen 46-49 der als Konstantantriebe ausgelegten hydrostratischen Antriebsaggregate treibt, die denen von Fig. 4 entsprechen. Über die Versorgungsleitung 29 werden die zu Fig. 4 erläuterten Sekundärantriebe elektrisch angetrieben.In the embodiment according to FIG. 5, a gear 50 is provided between the three-phase generator 19 and the internal combustion engine 4. A power take-off 51 branches off from the transmission 50 and drives the hydraulic pumps 46-49 of the hydrostratic drive units designed as constant drives, which correspond to those of FIG. 4. over the supply line 29, the secondary drives explained in FIG. 4 are electrically driven.

Sofern der Fertiger noch weitere Sekundärantriebe für weitere Arbeitsfunktionen aufweisen sollte, können diese je nach Funktion entweder hydrostatisch oder elektrisch wie in den Fig. 4 und 5 angedeutet, betrieben werden. In der Regel sind die hydrostatischen Antriebsaggregate klein und für geringe Leistungen ausgebildet. Das Kühlsystem K kann unabhängig davon, ob es sich um ein Eigen-oder ein Fremdkühlsystem handelt, mit der vom Drehstromgenerator 19 bereitgestellten elektrischen Energie betrieben werden, um die Drehstrommotoren ausreichend zu kühlen.If the paver should have further secondary drives for further work functions, these can be operated depending on the function either hydrostatically or electrically as indicated in FIGS. 4 and 5. As a rule, the hydrostatic drive units are small and designed for low outputs. Irrespective of whether it is an internal or an external cooling system, the cooling system K can be operated with the electrical energy provided by the three-phase generator 19 in order to cool the three-phase motors sufficiently.

Im Betrieb läuft der Verbrennungsmotor 4 bei seinem Leistungsoptimum, beispielsweise mit 1800 U/min. Der 4-polige-Drehstromgenerator erzeugt ein 3-phasiges Spannungssystem mit konstanter Frequenz von 60 Hz. In jedem Frequenzumrichter wird die Spannung zunächst gleichgerichtet und in einem Wechselrichter in ein 3-Phasensystem variabler Frequenz und Spannung umgewandelt. Entsprechend dieser Frequenz und Spannung verändern sich Drehmoment, Drehzahl und Leistung des angeschlossenen Drehstrommotors. Bei der Ausführungsform der Fig. 4 treibt der Drehstrommotor 44 die Hydraulikpumpen 46-49 mit konstanter Drehzahl. Gegebenenfalls ist diesem Drehstrommotor 44 ebenfalls ein Frequenzumrichter zugeordnet. Im anderen Fall werden die hydrostatischen Antriebsaggregate auf herkömmliche Weise gesteuert. Bei der Ausführungsform der Fig. 5 werden die Hydraulikpumpen 46-49 entweder mit der Drehzahl des Verbrennungsmotors 4 oder mit einer über den Nebenabtrieb 51 wählbaren Drehzahl dem Bedarf entsprechend angetrieben. Die Steuerung der hydrostatischen Antriebsaggregate erfolgt dann auf herkömmliche Art.In operation, the internal combustion engine 4 runs at its optimum performance, for example at 1800 rpm. The 4-pole alternator generates a 3-phase voltage system with a constant frequency of 60 Hz. In each frequency converter, the voltage is first rectified and converted in an inverter into a 3-phase system with variable frequency and voltage. The torque, speed and power of the connected three-phase motor change in accordance with this frequency and voltage. In the embodiment of FIG. 4, the three-phase motor 44 drives the hydraulic pumps 46-49 at a constant speed. If necessary, a frequency converter is also assigned to this three-phase motor 44. In the other case, the hydrostatic drive units are controlled in a conventional manner. In the embodiment of FIG. 5, the hydraulic pumps 46-49 are driven either at the speed of the internal combustion engine 4 or at a speed that can be selected via the power take-off 51. The hydrostatic drive units are then controlled in a conventional manner.

Claims (16)

1. A self-propelled road finisher (F) having a tractor (2) and a towed screed (B), the said road finisher comprising at least one internal combustion engine (4) serving as the primary drive (P), and a plurality of secondary drives (30 - 42) for working, conveying, propulsion and accessory devices, which are individually controllable and drivingly connected to the primary drive (P), characterised in that at least one electrically operable secondary drive (35, 36) is provided at least for the propulsion units (16) for a running gear (2) and is connected electrically to at least one generator (19) coupled to the primary drive (8).
2. A road finisher according to claim 1, characterised in that all the secondary drives (30 - 42) are of electromechanical construction and are connected to the generator (19).
3. A road finisher according to claim 1, characterised in that secondary drives constructed as constant drives are hydrostatic drives with hydraulic pumps (46 - 49) which are drivable via at least one three-phase AC motor (44) connected to the generator (19).
4. A road finisher according to claim 1, characterised in that secondary drives constructed as constant drives are hydrostatic drives with hydraulic pumps (46 - 49) in mechanical working connection via an auxiliary output (51) with the primary drive (P) driving the generator (19).
5. A road finisher according to claims 1 to 4, characterised in that a mechanical transmission (50) is provided between the generator (19) and the internal combustion engine (4) forming the primary drive (P).
6. A road finisher according to claims 4 and 5, characterised in that the auxiliary output (51) is disposed in the transmission (50) between the generator (19) and the internal combustion engine (4).
7. A road finisher according to claim 1, characterised in that the generator (19) is flanged directly on the internal combustion engine (4) forming the primary drive (P).
8. A road finisher according to claims 1 to 7, characterised in that the generator (19) is a three-phase AC generator and in that the connected electrical secondary drives (30 - 42) each have at least one three-phase AC motor (M) with which frequency converters (W) or changers (U) are associated.
9. A road finisher according to claim 8, characterised in that the frequency converters consist of reversible rectifiers with a DC intermediate circuit and a three-phase inverter.
10. A road finisher according to claim 8, characterised in that the three-phase AC motors (M) are provided with an external or their own cooling system (K).
11. A road finisher according to claim 10, characterised in that the external cooling system is an air or liquid cooling system.
12. A road finisher according to at least one of claims 1 to 11, characterised in that electrical secondary drives (30 - 42) are provided for the following means:
the at least one propulsion unit (16) for a running gear (2), at least one material conveyor means (6) (e.g. a drag conveyor or conveyor screw), at least one material distributor means (7) such as, for example, a distributor screw, at least one controlled or uncontrolled heating means (18), at least one vibrating means (10), at least one tamping means (13), at least one levelling means (14), at least one lifting means (15), at least one adjustment means (9) for the screed (B), at least one bunker wall moving means (17), at least one compression element (11), and the like.
13. A road finisher according to claim 1, characterised in that the finisher is equipped with an electrical heating means (18) for working devices and in that a mains rectifier (54) or a star-delta selector (55) is provided for the power control of the heating means (18).
14. A road finisher according to claims 3 and 4, characterised in that electrical secondary drives (35 - 42) are provided for the following means:
the at least one propulsion unit (16) for a running gear (2), at least one material conveyor means (6) such as, for example, a drag conveyor or a conveyor screw, at least one material distributor means (7), such as, for example, a distributor screw, at least one controlled or uncontrolled heating means (18), and in that hydrostatic constant drives are provided for the following means: vibration and tamping means (10, 13), levelling, lifting and adjusting means (14, 15, 9) for the screed (B), bunker wall adjustment means
(17), compression elements (11), such as, for example, compression strips and the like.
15. A road finisher according to any one of claims 1 to 14, characterised in that control means (52) for the electrical secondary drives (30 - 42) are provided in a driver's cab (3) of the road finisher (F) and in that control lines (53) lead from the control means (52) to the frequency converters (U) for the three-phase AC motors (M).
16. A road finisher according to claim 8, characterised in that the frequency converters (W) are structurally separate from the three-phase AC motors (M), being disposed in the substructure (1) of the road finisher (F).
EP90124254A 1990-12-14 1990-12-14 Finisher Expired - Lifetime EP0489969B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES90124254T ES2057345T5 (en) 1990-12-14 1990-12-14 FINISHER.
DK90124254T DK0489969T4 (en) 1990-12-14 1990-12-14 finishes
EP90124254A EP0489969B2 (en) 1990-12-14 1990-12-14 Finisher
AT90124254T ATE109232T1 (en) 1990-12-14 1990-12-14 FINISHER.
DE59006642T DE59006642D1 (en) 1990-12-14 1990-12-14 Paver.
JP3327534A JPH081046B2 (en) 1990-12-14 1991-12-11 Finishing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90124254A EP0489969B2 (en) 1990-12-14 1990-12-14 Finisher

Publications (3)

Publication Number Publication Date
EP0489969A1 EP0489969A1 (en) 1992-06-17
EP0489969B1 true EP0489969B1 (en) 1994-07-27
EP0489969B2 EP0489969B2 (en) 1999-11-17

Family

ID=8204842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124254A Expired - Lifetime EP0489969B2 (en) 1990-12-14 1990-12-14 Finisher

Country Status (6)

Country Link
EP (1) EP0489969B2 (en)
JP (1) JPH081046B2 (en)
AT (1) ATE109232T1 (en)
DE (1) DE59006642D1 (en)
DK (1) DK0489969T4 (en)
ES (1) ES2057345T5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1118714A2 (en) 2000-01-21 2001-07-25 Joseph Vögele AG Road finisher

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2691256B2 (en) * 1991-04-10 1997-12-17 株式会社タクマ Pump parallel operation control method
DE9308802U1 (en) * 1993-06-14 1993-08-19 Joseph Vögele AG, 68199 Mannheim Paver
EP1577443A1 (en) * 2004-03-18 2005-09-21 BITELLI S.p.A. Vibratory screed for a paving machine
DE102008033565A1 (en) * 2008-07-17 2010-02-18 Dynapac Gmbh Method for operating a road paver
PL2256247T5 (en) 2009-05-25 2018-02-28 Joseph Vögele AG Road finisher
DE502009000291D1 (en) 2009-05-25 2011-02-24 Voegele Ag J Paver and process
EP2281947B2 (en) * 2009-06-26 2022-04-13 Joseph Vögele AG Road finisher with automatic motor control
PL2333158T5 (en) * 2009-11-30 2018-05-30 Joseph Vögele AG Road finisher
JP5066664B2 (en) * 2010-04-27 2012-11-07 範多機械株式会社 Road paving machine
JP5110719B2 (en) * 2011-01-24 2012-12-26 範多機械株式会社 Road paving machine
JP5066662B1 (en) * 2011-10-19 2012-11-07 範多機械株式会社 Road paving vehicle
JP2013087620A (en) * 2012-06-20 2013-05-13 Handa Kikai Kk Road-paving vehicle
JP2013151851A (en) * 2012-10-05 2013-08-08 Handa Kikai Kk Road paving machine and control device therefor
US9382675B2 (en) * 2014-06-16 2016-07-05 Caterpillar Paving Products Inc. Electric powered systems for paving machines
DE102015012298A1 (en) 2015-09-23 2017-03-23 Abg Allgemeine Baumaschinen-Gesellschaft Mbh Method of operating a self-propelled road paver and paver therefor
DE102017002790B4 (en) * 2017-03-22 2021-02-04 Liebherr-Components Biberach Gmbh Self-propelled material processing and / or handling system
US20220389666A1 (en) * 2021-06-07 2022-12-08 Gomaco Corporation Powertrain for paving machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH564651A5 (en) * 1971-05-05 1975-07-31 Domenighetti Domenico
CH674384A5 (en) * 1987-11-18 1990-05-31 Egli Ag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1118714A2 (en) 2000-01-21 2001-07-25 Joseph Vögele AG Road finisher

Also Published As

Publication number Publication date
EP0489969A1 (en) 1992-06-17
JPH081046B2 (en) 1996-01-10
ES2057345T5 (en) 2000-03-16
DK0489969T4 (en) 2000-05-15
JPH04269204A (en) 1992-09-25
DK0489969T3 (en) 1994-10-10
EP0489969B2 (en) 1999-11-17
ES2057345T3 (en) 1994-10-16
ATE109232T1 (en) 1994-08-15
DE59006642D1 (en) 1994-09-01

Similar Documents

Publication Publication Date Title
EP0489969B1 (en) Finisher
EP2372022B1 (en) Street construction machine
EP2256248B2 (en) Road finisher
EP0895495B1 (en) Road maintenance tracklaying vehicle
DE102015006250B4 (en) Screed unit for a paver finisher and paver with such a screed unit
EP2256247A1 (en) Road finisher
DE3501608C2 (en)
EP3600940B1 (en) Electrically driven underground vehicle, in particular a mobile loader
EP4196648A1 (en) Vehicle-mounted concrete pump
DE60031545T2 (en) SHOVEL
DE202020101432U1 (en) Truck-mounted concrete pump
DE102018009035A1 (en) Paver and screed for a paver
EP0628661B1 (en) Roadfinisher
EP3736154A1 (en) Piste caterpillar
EP3608150A1 (en) Piste caterpillar with a chain drive
DE202021105041U1 (en) Slipform paver and slipform paver system
DE102021118787A1 (en) ROD TILLER WITH POWER SYSTEM, METHOD OF OPERATING A TILLER AND METHOD OF RETROFITTING A TILLER
DE202013004087U1 (en) snowcat
EP4151800B1 (en) Slipform paver system
WO2020011890A1 (en) Road construction machine
EP4215675A1 (en) Hybrid construction machine and method for operating the same
DE102021119541A1 (en) INTERCHANGEABLE MILLING ROLLER BOX UNIT, IN PARTICULAR QUICK INTERCHANGE MILLING ROLLER BOX UNIT, AND FLOOR MILLING MACHINE COMPRISING A BASIC MACHINE AND AN INTERCHANGEABLE MILLING ROLLER BOX UNIT
DE102022126161A1 (en) SYSTEM, INSTALLATION AND METHOD FOR USING AN INTEGRATED GENERATOR IN A MOBILE MACHINE AS A JOB SITE CHARGING STATION
DE102022203981A1 (en) Snow groomer for shaping and maintaining snowy terrain
EP4071303A1 (en) Milling box unit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19901214

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE DK ES FR GB IT LI NL SE

17Q First examination report despatched

Effective date: 19930526

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE DK ES FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 109232

Country of ref document: AT

Date of ref document: 19940815

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 59006642

Country of ref document: DE

Date of ref document: 19940901

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940824

ITF It: translation for a ep patent filed

Owner name: BUGNION S.P.A.

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2057345

Country of ref document: ES

Kind code of ref document: T3

EAL Se: european patent in force in sweden

Ref document number: 90124254.5

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: MANNESMANN AG

Effective date: 19950424

Opponent name: ABG ALLGEMEINE BAUMASCHINEN- GESELLSCHAFT MBH

Effective date: 19950421

26 Opposition filed

Opponent name: DYNAPAC GMBH

Effective date: 19950427

Opponent name: MANNESMANN AG

Effective date: 19950424

Opponent name: ABG ALLGEMEINE BAUMASCHINEN- GESELLSCHAFT MBH

Effective date: 19950421

NLR1 Nl: opposition has been filed with the epo

Opponent name: DYNAPAC GMBH

Opponent name: MANNESMANN AG

Opponent name: ABG ALLGEMEINE BAUMASCHINEN- GESELLSCHAFT MBH

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

R26 Opposition filed (corrected)

Opponent name: ABG ALLGEMEINE BAUMASCHINEN- GESELLSCHAFT MBH * 95

Effective date: 19950421

R26 Opposition filed (corrected)

Opponent name: ABG ALLGEMEINE BAUMASCHINEN- GESELLSCHAFT MBH * 95

Effective date: 19950421

NLR1 Nl: opposition has been filed with the epo

Opponent name: DYNAPAC GMBH

Opponent name: MANNESMANN AG

Opponent name: ABG ALLGEMEINE BAUMASCHINEN- GESELLSCHAFT MBH

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: ABG ALLGEMEINE BAUMASCHINEN- GESELLSCHAFT MBH * 95

Effective date: 19950421

NLR1 Nl: opposition has been filed with the epo

Opponent name: SVEDALA STRASSENFERTIGER GMBH

Opponent name: MANNESMANN AG

Opponent name: ABG ALLGEMEINE BAUMASCHINEN- GESELLSCHAFT MBH

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19991117

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT CH DE DK ES FR GB IT LI NL SE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19991122

Year of fee payment: 10

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

Free format text: AUFRECHTERHALTUNG DES PATENTES IN GEAENDERTER FORM

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19991216

Year of fee payment: 10

Ref country code: FR

Payment date: 19991216

Year of fee payment: 10

Ref country code: ES

Payment date: 19991216

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19991220

Year of fee payment: 10

GBTA Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977)
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19991222

Year of fee payment: 10

Ref country code: DK

Payment date: 19991222

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19991230

Year of fee payment: 10

Ref country code: CH

Payment date: 19991230

Year of fee payment: 10

NLR2 Nl: decision of opposition
ITF It: translation for a ep patent filed

Owner name: BUGNION S.P.A.

ET3 Fr: translation filed ** decision concerning opposition
REG Reference to a national code

Ref country code: ES

Ref legal event code: DC2A

Kind code of ref document: T5

Effective date: 20000209

NLR3 Nl: receipt of modified translations in the netherlands language after an opposition procedure
REG Reference to a national code

Ref country code: DK

Ref legal event code: T4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001214

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001214

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001215

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20001214

EUG Se: european patent has lapsed

Ref document number: 90124254.5

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010831

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20010701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011215

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20020112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051214