EP0916004B1 - Road construction machines for milling roadways - Google Patents

Road construction machines for milling roadways Download PDF

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Publication number
EP0916004B1
EP0916004B1 EP97929196A EP97929196A EP0916004B1 EP 0916004 B1 EP0916004 B1 EP 0916004B1 EP 97929196 A EP97929196 A EP 97929196A EP 97929196 A EP97929196 A EP 97929196A EP 0916004 B1 EP0916004 B1 EP 0916004B1
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EP
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Prior art keywords
road construction
wheel
construction machine
machine according
pivotable
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EP97929196A
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German (de)
French (fr)
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EP0916004A1 (en
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Dieter Simons
Günter HÄHN
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Wirtgen GmbH
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Wirtgen GmbH
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    • 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
    • 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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088—Rotary tools, e.g. milling drums

Definitions

  • the invention relates to a road construction machine for processing of roadways, e.g. of concrete pavements, Asphalt or the like according to the preamble of claim 1.
  • Road construction machines of this type are used, for example, as Cold milling machines are used for removing road surfaces.
  • DE-A-23 44 877 describes a milling device known from road surfaces, with the swiveling support wheels are attached to a height-adjustable milling drum.
  • the jockey wheel is pivoted about a vertical axis.
  • the jockey wheel is also height adjustable.
  • the pivoting position of the jockey wheel can be adjusted with the help of bolts be locked. These jockey wheels serve the milling depth to keep the milling drum constant. you are not driven and do not carry that supported by the chassis Machine weight.
  • All-wheel drive is used for milling of a newer type (FR-A-2642773) provided so that the normally in height the milling drum axis extending support wheels are also driven.
  • the support wheels can be telescoped using hydraulic cylinders and carry the machine weight.
  • the milling drum is located at the rear end of the machine frame and extends with one end face up to the so-called Zero side at which the face of the milling drum almost flush with the side edge of the machine frame completes. The milling drum is thus approximately flush and arranged parallel to the rear of the machine frame. Because of the direct adjustability of the milling depth the support wheels at the level of the roller axis of the milling drum.
  • the jockey wheel With flush milling on the zero side can the jockey wheel arranged on the zero side, which in the normal first end position laterally over the zero side protrudes, pivoted inwards relative to the machine frame be so that you can work close to the edges.
  • the jockey wheel is swiveled vertically Swivel axis, the jockey wheel at two points on the machine frame is stored with a large vertical distance, for sufficient stability to support the machine weight to achieve.
  • the uniaxial bearing of the swivel device is opposite the zero side, so that Working close to the edge is possible, but not a flush up to a house wall.
  • the driving position is on the machine frame above the Milling drum arranged.
  • the pivoting device has a lot of space a cabin must be placed on the operator's platform not possible.
  • the ascent and descent of the Operator done from behind what regarding Security is disadvantageous.
  • Another disadvantage is in that by pivoting the jockey wheel Running direction is changed. As a result, there is a change of direction of the hydraulic drive for the jockey wheel required or the jockey wheel must be rotatable in the Lifting column can be mounted, with an additional locking device necessary is.
  • the invention has for its object a road construction machine of the type mentioned at the outset, that with a pivotable on the zero side of the machine Jockey wheel provides a clear view of the work area in front of the Work equipment improved when working close to edges becomes.
  • the invention advantageously provides that swiveling jockey wheel over a horizontal plane lying gear coupled to a drive device from the first outer end position to the inner one End position is pivotable.
  • the horizontal position of the gearbox is the vertical space required for the Swivel device of the support wheel significantly reduced, so that the jockey wheel with the swivel device is better View of the work area in front of the work facility both in the swung out and in the swung in Condition.
  • the swiveling support wheel is while maintaining the running direction pivotable, with the support wheel in the inner parallel shifted end position is pivotable.
  • the Maintaining the running direction has the advantage that the Drive for the support wheel not in its direction of rotation must be switchable. For example, in cross section rectangular or square lifting columns are used be the more favorable in terms of directional stability are. This does not apply to lifting columns with a round cross-section Turn the jockey wheel by 180 °.
  • the gear can advantageously in a under the operator's level can be arranged so that an unobstructed observation of the work surface in front of the Work equipment by the driver is possible.
  • the arrangement of the gearbox also enables a cabin to sit on the operator's platform, with direct access can be provided to the driver's cab from the side.
  • the transmission preferably consists of a link transmission.
  • Such a gearbox can be used in spite of low vertical Extend high vertical forces as it is on two horizontally spaced vertical bearings can support.
  • the steering gear is coupled to a drive device, so that the pivoting of the jockey wheel from the driver on the control panel at a control panel can be arranged.
  • the handlebar gearbox can consist of a four-bar linkage four vertical hinge axes and with two in a horizontal Level swivel handlebars exist. At a such steering gear distributes the vertical load on the Machine frame and on the support wheel each on two vertical Articulated axes, so that the machine weight with high Stability even when the vertical extension is shortened Swivel device can be supported.
  • the machine-side joints are in the machine frame and do not protrude from the zero side. On in this way it is possible not only to work close to the edge, but also to drive flush to a house wall. Compared to a single-axis version of the swivel device there is a smaller lateral stroke between the two end positions of the support wheel, so that less space for the outer end position of the jockey wheel is needed, which does not unnecessarily broaden the machine becomes.
  • the work device can consist of a milling drum, one end of which is approximately flush with the zero side completes.
  • the milling drum axis extends orthogonally to the direction of travel of the road construction machine.
  • the working device is preferably at the rear end of the machine frame arranged and closes approximately flush with this off. In this way it is possible to Not only to let work equipment work close to the edge, but into corners.
  • the rear support wheels are for adjusting the working depth height of the work equipment.
  • the rear support wheels and / or at least a jockey wheel driven the front landing gear axle be.
  • the pivotable jockey wheel can be in its respective End positions fixed with the help of a locking device become.
  • a simple mechanical locking device consists, for example, of bolts that are part of the Gearbox and the machine frame are inserted.
  • the joints or the are on the pivotable support wheel Articulated axles of the steering gear on at least one non-rotatable attached to the lifting column connected support plate.
  • the joints on the support plate are on the Machine frame facing side attached. The support plate ensures stable guidance of the support wheel.
  • the drive device for the handlebar gear can consist of a push rod with linear drive and two Handlebar arms exist. By actuating the linear drive can then perform the pivoting movement of the support wheel become.
  • the rear support wheels are steerable.
  • Fig. 1 shows a road construction machine for milling off Roadways with a self-propelled undercarriage from a steerable front chassis axle 6 with two a hydraulic motor driven support wheels 12 and two independent rear support wheels 14, 16.
  • the Chassis carries a machine frame 8 on which one Driver's cab 4 on the so-called zero side 24 of the road construction machine at the level of the axes of the support wheels 14, 16 2 is located.
  • the rear support wheels are 14, 16 adjustable in height with the aid of a lifting column 48, so that the Working depth of a working device consisting of a milling drum 20 to be able to adjust.
  • the milling drum 20 is almost with one end flush with the zero side 24 of the machine frame, so that on the zero side of the road construction machine a near edge Work is possible.
  • the support wheel 16 is made an outer end position 26 beyond the zero side plane inwards into a recess 18 in the machine frame pivoted in, so that the outer edge of the support wheel 16th ends flush with the zero side 24.
  • the support wheels 14, 16 are driven by a hydraulic motor.
  • the milling drum axis runs, as best shown in Fig. 1 can be seen in the same vertical plane as the Axes of the support wheel 14 and the support wheel 16 in the outer end position.
  • the engagement circle of the milling drum ends near the rear end of the machine frame 8, so that up in corners can be milled close to the edge.
  • the pivoting device for the support wheel 16 consists of a steering gear 30 with four vertical hinge axes joints 40,41,42,43 and with two in one horizontal plane pivotable handlebars 44.46.
  • Two Joints 40, 41 are stationary on the machine frame 8 and two joints 42, 43 are on the pivotable support wheel 16 each in two vertically spaced support plates 38, 39 intended.
  • Hinge pins 56,58,60,62 are coaxial to the vertical Articulated axles.
  • the handlebar 46 is at one end to the in the Machine frame 8 pivot pin 56 mounted and at its other end with the between two vertically spaced support plates 38, 39 pivot pins 62 articulated.
  • the link 44 is on the machine side around the pivot pin 58 pivotable, which is mounted in the machine frame 8 and on the side of the support wheel 16 with the hinge pin 60 hingedly connected between the support plates 38,39 is stored.
  • the links 44, 46 thus move between the vertical spaced support plates 38.39.
  • 3a to 3c show the pivoting process in which the Jockey wheel 16 from its outer end position 26 to the inner one End position 28 with the aid of a drive device 34 is moved.
  • the drive device 34 consists of a hydraulic Piston cylinder unit 33 with a push rod 35 and two Handlebar arms 36.37.
  • the handlebar arm 37 is a two-armed Lever designed with one end on the machine frame 8 is stored and the other end with the second Handlebar arm 36 is articulated. The other end of the second link arm 36 is with the link 44 of the pivoting device connected.
  • the push rod 35 can by the driver on the Control station 4 are operated. In the retracted position the push rod 35 is the support wheel 16 in it outer end position projecting beyond the zero side 24 26. In the extended state of the push rod 35 that is Handlebar gear 30 pivoted so that the support wheel 16 in the inner end position 28 can be moved. Before the The jockey wheel 16 is pivoted with the aid of the lifting column 48 raised so that the support wheel 16 without contact with the ground can be pivoted.
  • the jockey wheel retains 16 its direction of travel and is relative to the outer End position in the direction of travel forward and inward moved in parallel.

Abstract

PCT No. PCT/EP97/03142 Sec. 371 Date Mar. 31, 1998 Sec. 102(e) Date Mar. 31, 1998 PCT Filed Jun. 17, 1997 PCT Pub. No. WO98/05822 PCT Pub. Date Feb. 12, 1998A road construction machine for the treatment of roadways, comprising an automotive wheel frame consisting of a steerable frontal wheel frame axle (6) and two rear support wheels (14, 16) independent from each other, comprising a driver's platform (4), for a driver of the vehicle, arranged in the area of the rear support wheels (14, 16) and on a machine frame (8) supported by the wheel frame, comprising a working means (20) arranged in or on the machine frame (8) and roughly flush with the machine frame (8) on one side, namely the so-called zero extension side (24), comprising a driving motor for the driving power required for driving the driving means (20) and for moving the vehicle, the rear support wheel (16) arranged on the zero extension side being pivotable from an exterior end position (26) projecting beyond the zero extension side (24) to a retracted interior end position (28) where the support wheel (16) does not project beyond the zero extension side, provides that the pivotable support wheel (16) is pivotable from the exterior end position (28) to the interior end position (28) by means of a gear arranged in a horizontal plane.

Description

Die Erfindung betrifft eine Straßenbaumaschine zum Bearbeiten von Fahrbahnen, z.B. von Straßendecken aus Beton, Asphalt o.dgl. nach dem Oberbegriff des Anspruchs 1.The invention relates to a road construction machine for processing of roadways, e.g. of concrete pavements, Asphalt or the like according to the preamble of claim 1.

Derartige Straßenbaumaschinen werden beispielsweise als Kaltfräsen zum Fahrbahndeckenausbau verwendet.Road construction machines of this type are used, for example, as Cold milling machines are used for removing road surfaces.

Aus der DE-A-23 44 877 ist eine Vorrichtung zum Abfräsen von Straßendecken bekannt, bei der schwenkbare Stützräder an einer höhenverstellbaren Fräswalze befestigt sind. Das Stützrad wird dabei um eine vertikale Achse verschwenkt. Das Stützrad ist seinerseits ebenfalls höhenverstellbar.DE-A-23 44 877 describes a milling device known from road surfaces, with the swiveling support wheels are attached to a height-adjustable milling drum. The The jockey wheel is pivoted about a vertical axis. The jockey wheel is also height adjustable.

Die Schwenklage des Stützrades kann mit Hilfe von Bolzen arretiert werden. Diese Stützräder dienen dazu, die Frästiefe der Fräswalze konstant zu halten. Sie sind nicht angetrieben und tragen nicht das von dem Fahrwerk abgestützte Maschinengewicht.The pivoting position of the jockey wheel can be adjusted with the help of bolts be locked. These jockey wheels serve the milling depth to keep the milling drum constant. you are not driven and do not carry that supported by the chassis Machine weight.

Bei Fräsen neuerer Bauart (FR-A-2642773) ist ein Allradantrieb vorgesehen, so daß auch die normalerweise in Höhe der Fräswalzenachse verlaufenden Stützräder ebenfalls angetrieben sind. Die Stützräder sind mit Hilfe von Hydraulikzylinder teleskopierbar und tragen das Maschinengewicht. Die Fräswalze ist am hinteren Ende des Maschinenrahmens angeordnet und reicht mit ihrer einen Stirnfläche bis dicht an die sogenannte Nullseite, bei der die Stirnseite der Fräswalze nahezu bündig mit der Seitenkante des Maschinenrahmens abschließt. Die Fräswalze ist somit in etwa bündig und parallel zur Rückseite des Maschinenrahmens angeordnet. Wegen der direkten Einstellbarkeit der Frästiefe befinden sich die Stützräder auf der Höhe der Walzenachse der Fräswalze. Bei kantenbündigem Fräsen auf der Nullseite kann das auf der Nullseite angeordnete Stützrad, das in der normalen ersten Endposition seitlich über die Nullseite übersteht, relativ zu dem Maschienenrahmen nach innen verschwenkt werden, so daß kantennah gearbeitet werden kann. Das Verschwenken des Stützrades erfolgt um eine vertikale Schwenkachse, wobei das Stützrad an zwei Stellen des Maschinenrahmens mit großem vertikalen Abstand gelagert ist, um eine ausreichende Stabilität zum Tragen des Maschinengewichts zu erzielen. Die einachsige Lagerung der Schwenkeinrichtung steht gegenüber der Nullseite vor, so daß zwar ein kantennahes Arbeiten möglich ist, nicht jedoch ein bündiges Heranfahren bis an eine Hauswand.All-wheel drive is used for milling of a newer type (FR-A-2642773) provided so that the normally in height the milling drum axis extending support wheels are also driven. The support wheels can be telescoped using hydraulic cylinders and carry the machine weight. The milling drum is located at the rear end of the machine frame and extends with one end face up to the so-called Zero side at which the face of the milling drum almost flush with the side edge of the machine frame completes. The milling drum is thus approximately flush and arranged parallel to the rear of the machine frame. Because of the direct adjustability of the milling depth the support wheels at the level of the roller axis of the milling drum. With flush milling on the zero side can the jockey wheel arranged on the zero side, which in the normal first end position laterally over the zero side protrudes, pivoted inwards relative to the machine frame be so that you can work close to the edges. The jockey wheel is swiveled vertically Swivel axis, the jockey wheel at two points on the machine frame is stored with a large vertical distance, for sufficient stability to support the machine weight to achieve. The uniaxial bearing of the swivel device is opposite the zero side, so that Working close to the edge is possible, but not a flush up to a house wall.

Der Fahrstand ist auf dem Maschinenrahmen oberhalb der Fräswalze angeordnet. Beim kantennahen Fräsen auf der Nullseite und behindert das Stützrad und die einachsige vertikale Lagerung des Stützrades den freien Blick auf den Arbeitsraum vor der Fräswalze, und zwar sowohl im ausgeschwenkten wie auch insbesondere im eingeschwenkten Zustand. Dadurch, daß die Schwenkeinrichtung viel Platz benötigt, ist ein Aufsetzen einer Kabine auf den Fahrstand nicht möglich. Desweiteren muß der Auf- und Abstieg der Bedienungsperson von hinten erfolgen, was hinsichtlich der Sicherheit nachteilig ist. Ein weiterer Nachteil besteht darin, daß durch das Verschwenken des Stützrades dessen Laufrichtung geändert wird. Infolgedessen ist eine Drehrichtungsumschaltung des Hydraulikantriebs für das Stützrad erforderlich oder das Stützrad muß drehbar in der Hubsäule gelagert sein, wobei dann eine zusätzliche Arretiervorrichtung notwendig ist.The driving position is on the machine frame above the Milling drum arranged. When milling close to the edge on the Zero side and hampers the jockey wheel and uniaxial vertical bearing of the jockey wheel the unobstructed view of the Work area in front of the milling drum, both in the swung out as well as especially when swung in. Because the pivoting device has a lot of space a cabin must be placed on the operator's platform not possible. Furthermore, the ascent and descent of the Operator done from behind, what regarding Security is disadvantageous. Another disadvantage is in that by pivoting the jockey wheel Running direction is changed. As a result, there is a change of direction of the hydraulic drive for the jockey wheel required or the jockey wheel must be rotatable in the Lifting column can be mounted, with an additional locking device necessary is.

Der Erfindung liegt die Aufgabe zugrunde, eine Straßenbaumaschine der eingangs genannten Art derart weiterzubilden, daß bei einem auf der Nullseite der Maschine verschwenkbaren Stützrad die freie Sicht auf den Arbeitsraum vor der Arbeitseinrichtung bei kantennahem Arbeiten verbessert wird.The invention has for its object a road construction machine of the type mentioned at the outset, that with a pivotable on the zero side of the machine Jockey wheel provides a clear view of the work area in front of the Work equipment improved when working close to edges becomes.

Zur Lösung dieser Aufgabe dienen die Merkmale des Anspruchs 1.The features of the claim serve to solve this problem 1.

Die Erfindung sieht in vorteilhafter Weise vor, daß das schwenkbare Stützrad über ein in einer horizontalen Ebene liegendes mit einer Antriebseinrichtung gekoppeltes Getriebe von der ersten äußeren Endposition in die innere Endposition verschwenkbar ist. Durch die Horizontallage des Getriebes ist der vertikale Platzbedarf für die Schwenkeinrichtung des Stützrades erheblich reduziert, so daß das Stützrad mit der Schwenkeinrichtung eine bessere Sicht auf den Arbeitsraum vor der Arbeitseinrichtung sowohl im ausgeschwenkten und auch im eingeschwenkten Zustand zuläßt.The invention advantageously provides that swiveling jockey wheel over a horizontal plane lying gear coupled to a drive device from the first outer end position to the inner one End position is pivotable. Through the horizontal position of the gearbox is the vertical space required for the Swivel device of the support wheel significantly reduced, so that the jockey wheel with the swivel device is better View of the work area in front of the work facility both in the swung out and in the swung in Condition.

Das schwenkbare Stützrad ist unter Beibehaltung der Laufrichtung verschwenkbar, wobei das Stützrad in die innere parallelverschoben Endposition verschwenkbar ist. Die Beibehaltung der Laufrichtung hat den Vorteil, daß der Antrieb für das Stützrad nicht in seiner Drehrichtung umschaltbar sein muß. Es können beispielsweise im Querschnitt rechteckige oder quadratische Hubsäulen verwendet werden, die hinsichtlich der Richtungsstabilität günstiger sind. Bei Hubsäulen mit rundem Querschnitt entfällt das Verdrehen des Stützrades um 180 °.The swiveling support wheel is while maintaining the running direction pivotable, with the support wheel in the inner parallel shifted end position is pivotable. The Maintaining the running direction has the advantage that the Drive for the support wheel not in its direction of rotation must be switchable. For example, in cross section rectangular or square lifting columns are used be the more favorable in terms of directional stability are. This does not apply to lifting columns with a round cross-section Turn the jockey wheel by 180 °.

Das Getriebe kann in vorteilhafter Weise in einer unter dem Fahrstand befindlichen Ebene angeordnet werden, so daß eine ungehinderte Beobachtung der Arbeitsfläche vor der Arbeitseinrichtung durch den Fahrzeugführer möglich ist. Die Anordnung des Getriebes ermöglicht auch eine Kabine auf den Fahrstand aufzusetzen, wobei ein direkter Zugang zum Fahrerstand von der Seite vorgesehen werden kann.The gear can advantageously in a under the operator's level can be arranged so that an unobstructed observation of the work surface in front of the Work equipment by the driver is possible. The arrangement of the gearbox also enables a cabin to sit on the operator's platform, with direct access can be provided to the driver's cab from the side.

Das Getriebe besteht vorzugsweise aus einem Lenkergetriebe. Ein derartiges Getriebe kann trotz geringer vertikaler Ausdehnung hohe vertikale Kräfte aufnehmen, da es sich auf jeweils zwei horizontal beabstandete vertikale Lagerungen abstützen kann.The transmission preferably consists of a link transmission. Such a gearbox can be used in spite of low vertical Extend high vertical forces as it is on two horizontally spaced vertical bearings can support.

Das Lenkergetriebe ist mit einer Antriebseinrichtung gekoppelt, so daß das Verschwenken des Stützrades von dem Fahrzeugführer auf dem Fahrstand an einem Bedienungspult veranlaßt werden kann.The steering gear is coupled to a drive device, so that the pivoting of the jockey wheel from the driver on the control panel at a control panel can be arranged.

Das Lenkergetriebe kann aus einem Viergelenkgetriebe mit vier vertikalen Gelenkachsen und mit zwei in einer horizontalen Ebene verschwenkbaren Lenkern bestehen. Bei einem solchen Lenkergetriebe verteilt sich die Stützlast an dem Maschinenrahmen und an dem Stützrad jeweils auf zwei vertikale Gelenkachsen, so daß das Maschinengewicht mit hoher Stabilität auch bei verkürzter vertikaler Erstreckung der Schwenkeinrichtung abgestützt werden kann.The handlebar gearbox can consist of a four-bar linkage four vertical hinge axes and with two in a horizontal Level swivel handlebars exist. At a such steering gear distributes the vertical load on the Machine frame and on the support wheel each on two vertical Articulated axes, so that the machine weight with high Stability even when the vertical extension is shortened Swivel device can be supported.

Die maschinenseitigen Gelenke befinden sich im Maschinenrahmen und stehen nicht gegenüber der Nullseite vor. Auf diese Weise ist es möglich, nicht nur kantennah zu arbeiten, sondern auch bündig bis an eine Hauswand heranzufahren. Gegenüber einer einachsigen Ausführung der Schwenkeinrichtung ergibt sich ein geringerer seitlicher Hub zwischen den beiden Endpositionen des Stützrades, so daß für die äußere Endposition des Stützrades weniger Platz benötigt wird, wodurch die Maschine nicht unnötig verbreitert wird.The machine-side joints are in the machine frame and do not protrude from the zero side. On in this way it is possible not only to work close to the edge, but also to drive flush to a house wall. Compared to a single-axis version of the swivel device there is a smaller lateral stroke between the two end positions of the support wheel, so that less space for the outer end position of the jockey wheel is needed, which does not unnecessarily broaden the machine becomes.

Die Arbeitseinrichtung kann aus einer Fräswalze bestehen, deren eine Stirnseite in etwa bündig mit der Nullseite abschließt. Die Fräswalzenachse erstreckt sich dabei orthogonal zur Fahrtrichtung der Straßenbaumaschine.The work device can consist of a milling drum, one end of which is approximately flush with the zero side completes. The milling drum axis extends orthogonally to the direction of travel of the road construction machine.

Vorzugsweise ist die Arbeitseinrichtung am hinteren Ende des Maschinenrahmens angeordnet und schließt in etwa bündig mit diesem ab. Auf diese Weise ist es möglich, die Arbeitseinrichtung nicht nur kantennah arbeiten zu lassen, sondern bis in Ecken hinein.The working device is preferably at the rear end of the machine frame arranged and closes approximately flush with this off. In this way it is possible to Not only to let work equipment work close to the edge, but into corners.

Die hinteren Stützräder sind zwecks Einstellung der Arbeitstiefe der Arbeitseinrichtung höhenverstellbar.The rear support wheels are for adjusting the working depth height of the work equipment.

Dabei können die hinteren Stützräder und/oder das mindestens eine Stützrad der vorderen Fahrwerkachse angetrieben sein.The rear support wheels and / or at least a jockey wheel driven the front landing gear axle be.

Das verschwenkbare Stützrad kann in seinen jeweiligen Endpositionen mit Hilfe einer Arretiereinrichtung fixiert werden. Eine einfache mechanische Arretiereinrichtung besteht beispielsweise aus Bolzen, die durch Teile des Getriebes und des Maschinenrahmens hindurchgesteckt werden.The pivotable jockey wheel can be in its respective End positions fixed with the help of a locking device become. A simple mechanical locking device consists, for example, of bolts that are part of the Gearbox and the machine frame are inserted.

An dem schwenkbaren Stützrad sind die Gelenke bzw. die Gelenkachsen des Lenkergetriebes an mindestens einer drehfest mit der Hubsäule verbundene Tragplatte befestigt. Dabei sind die Gelenke auf der Tragplatte auf der dem Maschinenrahmen zugewandten Seite befestigt. Die Tragplatte gewährleistet eine stabile Führung des Stützrades.The joints or the are on the pivotable support wheel Articulated axles of the steering gear on at least one non-rotatable attached to the lifting column connected support plate. The joints on the support plate are on the Machine frame facing side attached. The support plate ensures stable guidance of the support wheel.

Die Antriebseinrichtung für das Lenkergetriebe kann aus einer Schubstange mit Linearantrieb und zwei Lenkerarmen bestehen. Durch Betätigung des Linearantriebs kann dann die Schwenkbewegung des Stützrades ausgeführt werden.The drive device for the handlebar gear can consist of a push rod with linear drive and two Handlebar arms exist. By actuating the linear drive can then perform the pivoting movement of the support wheel become.

Bei einer anderen Ausführungsform kann vorgesehen sein, daß die hinteren Stützräder lenkbar sind.In another embodiment it can be provided that the rear support wheels are steerable.

Im folgenden wird unter Bezugnahme auf die Zeichnungen ein Ausführungsbeispiel der Erfindung näher erläutert.The following is a reference to the drawings Embodiment of the invention explained in more detail.

Es zeigen:

Fig. 1
eine schematische Seitenansicht der Straßenbaumaschine,
Fig. 2
eine Draufsicht auf die Straßenbaumaschine gemäß Fig. 1,
Fig. 3a
ein Stützrad in einer äußeren Endposition,
Fig. 3b
das Stützrad in einer Zwischenposition, und
Fig. 3c
das Stützrad in der inneren Endposition.
Show it:
Fig. 1
a schematic side view of the road construction machine,
Fig. 2
2 shows a plan view of the road construction machine according to FIG. 1,
Fig. 3a
a jockey wheel in an outer end position,
Fig. 3b
the jockey wheel in an intermediate position, and
Fig. 3c
the jockey wheel in the inner end position.

Fig. 1 zeigt eine Straßenbaumaschine zum Abfräsen von Fahrbahnen mit einem selbstfahrenden Fahrwerk bestehend aus einer lenkbaren vorderen Fahrwerkachse 6 mit zwei mit einem Hydromotor angetriebenen Stütz rädern 12 und zwei voneinander unabhängigen hinteren Stützrädern 14,16. Das Fahrwerk trägt einen Maschinenrahmen 8, auf dem sich ein Fahrerstand 4 auf der sogenannten Nullseite 24 der Straßenbaumaschine in Höhe der Achsen der Stützräder 14,16 gemäß Fig. 2 befindet. Die hinteren Stützräder 14,16 sind mit Hilfe einer Hubsäule 48 höhenverstellbar, um damit die Arbeitstiefe einer aus einer Fräswalze bestehenden Arbeitseinrichtung 20 einstellen zu können.Fig. 1 shows a road construction machine for milling off Roadways with a self-propelled undercarriage from a steerable front chassis axle 6 with two a hydraulic motor driven support wheels 12 and two independent rear support wheels 14, 16. The Chassis carries a machine frame 8 on which one Driver's cab 4 on the so-called zero side 24 of the road construction machine at the level of the axes of the support wheels 14, 16 2 is located. The rear support wheels are 14, 16 adjustable in height with the aid of a lifting column 48, so that the Working depth of a working device consisting of a milling drum 20 to be able to adjust.

Die Fräswalze 20 ist mit ihrer einen Stirnseite nahezu bündig mit der Nullseite 24 des Maschinenrahmens, so daß auf der Nullseite der Straßenbaumaschine ein kantennahes Arbeiten möglich ist. Hierzu wird das Stützrad 16 aus einer äußeren Endposition 26 jenseits der Nullseitenebene nach innen in eine Aussparung 18 des Maschinenrahmens eingeschwenkt, so daß die Außenkante des Stützrades 16 bündig mit der Nullseite 24 abschließt.The milling drum 20 is almost with one end flush with the zero side 24 of the machine frame, so that on the zero side of the road construction machine a near edge Work is possible. For this purpose, the support wheel 16 is made an outer end position 26 beyond the zero side plane inwards into a recess 18 in the machine frame pivoted in, so that the outer edge of the support wheel 16th ends flush with the zero side 24.

Die Stützräder 14,16 sind mit einem Hydromotor angetrieben. Die Fräswalzenachse verläuft, wie am besten aus Fig. 1 ersichtlich, in der gleichen vertikalen Ebene, wie die Achsen des Stützrades 14 und des Stützrades 16 in der äußeren Endposition.The support wheels 14, 16 are driven by a hydraulic motor. The milling drum axis runs, as best shown in Fig. 1 can be seen in the same vertical plane as the Axes of the support wheel 14 and the support wheel 16 in the outer end position.

Der Eingriffskreis der Fräswalze endet in der Nähe des hinteren Endes des Maschinenrahmens 8, so daß bis in Ecken kantennah gefräst werden kann.The engagement circle of the milling drum ends near the rear end of the machine frame 8, so that up in corners can be milled close to the edge.

Die Schwenkeinrichtung für das Stützrad 16 besteht aus einem Lenkergetriebe 30 mit vier vertikale Gelenkachsen aufweisende Gelenke 40,41,42,43 und mit zwei in einer horizontalen Ebene verschwenkbaren Lenkern 44,46. Zwei Gelenke 40,41 sind ortsfest an dem Maschinenrahmen 8 und zwei Gelenke 42,43 sind an dem schwenkbaren Stützrad 16 jeweils in zwei vertikal beabstandeten Tragplatten 38,39 vorgesehen.The pivoting device for the support wheel 16 consists of a steering gear 30 with four vertical hinge axes joints 40,41,42,43 and with two in one horizontal plane pivotable handlebars 44.46. Two Joints 40, 41 are stationary on the machine frame 8 and two joints 42, 43 are on the pivotable support wheel 16 each in two vertically spaced support plates 38, 39 intended.

Gelenkbolzen 56,58,60,62 sind koaxial zu den vertikalen Gelenkachsen gelagert.Hinge pins 56,58,60,62 are coaxial to the vertical Articulated axles.

Der Lenker 46 ist mit seinem einen Ende um den in dem Maschinenrahmen 8 gelagerten Gelenkbolzen 56 schwenkbar und an seinem anderen Ende mit den zwischen zwei vertikal beabstandeten Tragplatten 38,39 gelagerten Gelenkbolzen 62 gelenkig verbunden.The handlebar 46 is at one end to the in the Machine frame 8 pivot pin 56 mounted and at its other end with the between two vertically spaced support plates 38, 39 pivot pins 62 articulated.

Der Lenker 44 ist maschinenseitig um den Gelenkbolzen 58 schwenkbar, der in dem Maschinenrahmen 8 gelagert ist und auf der Seite des Stützrades 16 mit den Gelenkbolzen 60 gelenkig verbunden, der zwischen den Tragplatten 38,39 gelagert ist.The link 44 is on the machine side around the pivot pin 58 pivotable, which is mounted in the machine frame 8 and on the side of the support wheel 16 with the hinge pin 60 hingedly connected between the support plates 38,39 is stored.

Die Lenker 44,46 bewegen sich somit zwischen den vertikal beabstandeten Tragplatten 38,39.The links 44, 46 thus move between the vertical spaced support plates 38.39.

Fig. 3a bis 3c zeigen den Schwenkvorgang, bei dem das Stützrad 16 von seiner äußeren Endposition 26 in die innere Endposition 28 mit Hilfe einer Antriebseinrichtung 34 bewegt wird.3a to 3c show the pivoting process in which the Jockey wheel 16 from its outer end position 26 to the inner one End position 28 with the aid of a drive device 34 is moved.

Die Antriebseinrichtung 34 besteht aus einer hydraulischen Kolbenzylindereinheit 33 mit einer Schubstange 35 und zwei Lenkerarmen 36,37. Der Lenkerarm 37 ist als zweiarmiger Hebel gestaltet, wobei das eine Ende an dem Maschinenrahmen 8 gelagert ist und das andere Ende mit dem zweiten Lenkerarm 36 gelenkig verbunden ist. Das andere Ende des zweiten Lenkerarms 36 ist mit dem Lenker 44 der Schwenkeinrichtung verbunden.The drive device 34 consists of a hydraulic Piston cylinder unit 33 with a push rod 35 and two Handlebar arms 36.37. The handlebar arm 37 is a two-armed Lever designed with one end on the machine frame 8 is stored and the other end with the second Handlebar arm 36 is articulated. The other end of the second link arm 36 is with the link 44 of the pivoting device connected.

Die Schubstange 35 kann von dem Fahrzeugführer auf dem Fahrstand 4 betätigt werden. In der eingezogenen Position der Schubstange 35 befindet sich das Stützrad 16 in seiner äußeren, über die Nullseite 24 überstehenden Endposition 26. Im ausgefahrenen Zustand der Schubstange 35 wird das Lenkergetriebe 30 verschwenkt, so daß das Stützrad 16 in die innere Endposition 28 bewegt werden kann. Vor dem Schwenkvorgang wird das Stützrad 16 mit Hilfe der Hubsäule 48 angehoben, damit das Stützrad 16 ohne Bodenkontakt verschwenkt werden kann.The push rod 35 can by the driver on the Control station 4 are operated. In the retracted position the push rod 35 is the support wheel 16 in it outer end position projecting beyond the zero side 24 26. In the extended state of the push rod 35 that is Handlebar gear 30 pivoted so that the support wheel 16 in the inner end position 28 can be moved. Before the The jockey wheel 16 is pivoted with the aid of the lifting column 48 raised so that the support wheel 16 without contact with the ground can be pivoted.

In den jeweiligen Endpositionen 26,28 des Stützrades kann das Lenkergetriebe 30 mit Hilfe eines in den Zeichnungen nicht dargestellten Bolzens, der durch entsprechende Arretierungslöcher hindurchgesteckt wird, fixiert werden. Für die äußere Endposition 26 des Stützrades gemäß Fig. 3A ist in dem Maschinenrahmen 8 ein Arretierungsloch 50 vorgesehen, das mit einer Durchstecköffnung 52 im Lenker 44 in der Endposition 26 fluchtet. Der Bolzen kann dann durch beide Öffnungen 50,52 hindurchgesteckt werden und so das Lenkergetriebe 30 arretieren.In the respective end positions 26, 28 of the support wheel the steering gear 30 using one in the drawings bolt, not shown, through corresponding locking holes is put through, fixed. For the outer end position 26 of the support wheel according to FIG. 3A a locking hole 50 is provided in the machine frame 8, that with a push-through opening 52 in the handlebar 44 in the end position 26 is aligned. The bolt can then go through both openings 50,52 are inserted and so that Lock handlebar gear 30.

In der inneren Endposition 28 erfolgt die Arretierung des Lenkergetriebes 30 mit Hilfe von Arretierungslöchern 54 in den Tragplatten 38,39. Dabei wird der Bolzen durch die obere Tragplatte 38, durch die Durchstecköffnung 52 im Lenker 44 und durch die untere Tragplatte 39 hindurchgesteckt. In der Endposition 28 steht weder das Stützrad 16 noch irgendein Getriebeelement des Lenkergetriebes über die Nullseite 24 über. In the inner end position 28, the Handlebar gear 30 with the help of locking holes 54 in the support plates 38.39. The bolt is through the upper support plate 38, through the push-through opening 52 in the Handlebar 44 and inserted through the lower support plate 39. Neither the support wheel 16 is in the end position 28 any transmission element of the handlebar transmission the zero side 24 over.

Wie aus den Fign. 3a bis 3c ersichtlich, behält das Stützrad 16 seine Laufrichtung bei und ist relativ zu der äußeren Endposition in Fahrtrichtung nach vorne und nach innen parallel verschoben.As shown in Figs. 3a to 3c visible, the jockey wheel retains 16 its direction of travel and is relative to the outer End position in the direction of travel forward and inward moved in parallel.

Claims (12)

  1. A road construction machine for the treatment of roadways,
    comprising an automotive wheel frame consisting of a steerable frontal wheel frame axle (6) with at least one support wheel (12) and two rear support wheels (14, 16),
    comprising a driver's platform (4) in the area of the rear support wheels (14, 16) for a driver of the vehicle on a machine frame (8) supported by the wheel frame,
    comprising a working means (20) arranged in or on the machine frame (8) which is roughly flush with the machine frame (8) on one side thereof, namely on the so-called zero extension side (24) thereof,
    comprising a driving motor for the driving power required for driving the driving means (20) and for moving the vehicle,
    the rear support wheel (16) arranged on the zero extension side (24) being pivotable from an exterior end position (26) projecting beyond the zero extension side (24) to a retracted interior end position (28) where the support wheel (16) does not project beyond the zero extension side (24),
    characterized in that
    the pivotable support wheel (16), while maintaining the running direction, is pivotable from the exterior end position (26) to the parallelly displaced interior end position (28) by means of a gear (30) arranged in a horizontal plane and connected with a drive means (34).
  2. The road construction machine according to claim 1, characterized in that the gear consists of a guide rod gear (30).
  3. The road construction machine according to claim 2, characterized in that the guide rod gear (30) consist of a four-bar mechanism with four vertical articulated axles (40-43) and with two guide rods (44, 46) pivotable in a horizontal plane.
  4. The road construction machine according to claim 2 or 3, characterized in that two joints or articulated axles (40, 41), respectively, are fixed to the machine frame (8) and two joints or articulated axles (42, 43), respectively, are arranged on the pivotable support wheel (16).
  5. The road construction machine according to any one of claims 1 to 4, characterized in that the working means (20) is arranged at the rear end of the machine frame (8) and is roughly flush therewith.
  6. The road construction machine according to any one of claims 1 to 5, characterized in that the end positions (26, 28) of the pivotable support wheel (16) are fixable by means of a locking means (50, 52, 54).
  7. The road construction machine according to any one of claims 1 to 6, characterized in that the support wheels (14, 16) comprise a lifting column (48) hydraulically operated and nonrotatingly locked due to the cross-sectional shape thereof or in another manner.
  8. The road construction machine according to any one of claims 1 to 7, characterized in that the joints or articulated axles (42, 43) are arranged on the pivotable support wheel (16) on at least one support plate (38, 39) connected nonrotatingly to the lifting column (48).
  9. The road construction machine according to any one of claims 1 to 8, characterized in that the driving means (34) for the guide rod gear (30) consists of a piston/cylinder unit (33, 35) and two links (36, 37).
  10. The road construction machine according to any one of claims 1 to 9, characterized in that the gear (30) is arranged in a plane located below the driver's platform (4).
  11. The road construction machine according to any one of claims 1 to 10, characterized in that the rear support wheels (14, 16) and/or the at least one support wheel (12) of the frontal wheel frame axle are driven.
  12. The road construction machine according to any one of claims 1 to 11, characterized in that the rear support wheels (14, 16) are steerable.
EP97929196A 1996-08-01 1997-06-17 Road construction machines for milling roadways Expired - Lifetime EP0916004B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19631042 1996-08-01
DE19631042.3A DE19631042C5 (en) 1996-08-01 1996-08-01 Road construction machines for roadworks
PCT/EP1997/003142 WO1998005822A1 (en) 1996-08-01 1997-06-17 Road construction machines for milling roadways

Publications (2)

Publication Number Publication Date
EP0916004A1 EP0916004A1 (en) 1999-05-19
EP0916004B1 true EP0916004B1 (en) 1999-09-08

Family

ID=7801471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97929196A Expired - Lifetime EP0916004B1 (en) 1996-08-01 1997-06-17 Road construction machines for milling roadways

Country Status (7)

Country Link
US (1) US6106073A (en)
EP (1) EP0916004B1 (en)
JP (1) JP3585243B2 (en)
AT (1) ATE184344T1 (en)
DE (2) DE19631042C5 (en)
ES (1) ES2138465T3 (en)
WO (1) WO1998005822A1 (en)

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US7523995B2 (en) 2004-07-15 2009-04-28 Caterpillar Paving Products Inc. Milling machine
US9068303B2 (en) 2012-08-22 2015-06-30 Wirtgen Gmbh Road milling machine for the treatment of road pavements, as well as method for pivoting a travelling drive unit of a road milling machine
US9085857B2 (en) 2012-03-28 2015-07-21 Wirtgen Gmbh Automotive milling machine, use of a lifting column of a milling machine, as well as method for increasing the operating efficiency of a milling machine
CN107653768A (en) * 2016-07-21 2018-02-02 宝马格有限公司 Road milling machine and the method for carrying out track regulation to road milling machine
EP3842592B1 (en) * 2019-12-23 2023-07-05 Wirtgen GmbH Self-propelled construction vehicle
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DE102007033808A1 (en) * 2007-07-05 2009-01-08 Wirtgen Gmbh Self-propelled road milling machine, in particular large milling machine
DE102010034662A1 (en) 2010-03-02 2011-09-08 Bomag Gmbh Road construction machine for working lanes
DE102013003864A1 (en) 2012-03-06 2013-09-12 Bomag Gmbh Self-propelled road milling machine for processing road pavements, has electric or hydraulic motor which is arranged axially offset to the rotation axis of the driving wheel
DE102012021378B4 (en) 2012-10-31 2020-09-03 Bomag Gmbh Construction machine for processing ground surfaces with a pivoting device for a driving device, a pivoting device and a method for pivoting a driving device of a construction machine
DE102012021379B4 (en) * 2012-10-31 2021-09-09 Bomag Gmbh Floor milling machine with swiveling drive unit
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DE102013009816A1 (en) 2013-06-11 2014-12-11 Bomag Gmbh Ground milling machine, in particular road cold milling machine
US9388539B2 (en) 2014-06-09 2016-07-12 Wirtgen Gmbh Selective clamping of chassis
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DE102014014704B4 (en) * 2014-10-02 2023-07-27 Bomag Gmbh Ground milling machine and method for pivoting a driving device of a ground milling machine
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US9684308B2 (en) 2014-11-13 2017-06-20 Wirtgen Gmbh Transport mode conversion
DE102015007937B4 (en) 2015-01-28 2023-09-07 Bomag Gmbh Construction machines for processing ground surfaces with a pivoting device for a driving device and pivoting device for such a construction machine
CN107531297A (en) * 2015-03-25 2018-01-02 哥伦比亚车辆有限公司 For conveying and turning to heavy duty method and apparatus
CN105803912B (en) * 2016-03-16 2018-01-23 戴纳派克（中国）压实摊铺设备有限公司 The supporting leg of milling machine swings steering mechanism
US9951484B2 (en) * 2016-06-20 2018-04-24 Roadtec, Inc. Positioning assembly for placing steerable drive in multiple positions with respect to milling machine housing
DE102016009516A1 (en) 2016-08-04 2018-02-08 Bomag Gmbh road milling machine
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Publication number Priority date Publication date Assignee Title
EP1270817A1 (en) * 2001-06-29 2003-01-02 BITELLI S.p.A. Cold planer
US7523995B2 (en) 2004-07-15 2009-04-28 Caterpillar Paving Products Inc. Milling machine
US9085857B2 (en) 2012-03-28 2015-07-21 Wirtgen Gmbh Automotive milling machine, use of a lifting column of a milling machine, as well as method for increasing the operating efficiency of a milling machine
US9068303B2 (en) 2012-08-22 2015-06-30 Wirtgen Gmbh Road milling machine for the treatment of road pavements, as well as method for pivoting a travelling drive unit of a road milling machine
US9540779B2 (en) 2012-08-22 2017-01-10 Wirtgen Gmbh Road milling machine for the treatment of road pavements, as well as method for pivoting a travelling drive unit of a road milling machine
CN107653768A (en) * 2016-07-21 2018-02-02 宝马格有限公司 Road milling machine and the method for carrying out track regulation to road milling machine
CN107653768B (en) * 2016-07-21 2021-07-30 宝马格有限公司 Road milling machine and method for adjusting the path of a road milling machine
EP3842592B1 (en) * 2019-12-23 2023-07-05 Wirtgen GmbH Self-propelled construction vehicle
US11761157B2 (en) 2020-04-03 2023-09-19 Wirtgen Gmbh Self-propelled construction machine

Also Published As

Publication number Publication date
US6106073A (en) 2000-08-22
DE19631042C2 (en) 2000-06-08
JP2000515212A (en) 2000-11-14
DE19631042A1 (en) 1998-02-05
DE19631042C5 (en) 2015-08-20
WO1998005822A1 (en) 1998-02-12
DE59700424D1 (en) 1999-10-14
ES2138465T3 (en) 2000-01-01
JP3585243B2 (en) 2004-11-04
ATE184344T1 (en) 1999-09-15
EP0916004A1 (en) 1999-05-19

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