EP0184577B1 - Broom boom for a tunnel cleaning apparatus - Google Patents

Broom boom for a tunnel cleaning apparatus Download PDF

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Publication number
EP0184577B1
EP0184577B1 EP19850890282 EP85890282A EP0184577B1 EP 0184577 B1 EP0184577 B1 EP 0184577B1 EP 19850890282 EP19850890282 EP 19850890282 EP 85890282 A EP85890282 A EP 85890282A EP 0184577 B1 EP0184577 B1 EP 0184577B1
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EP
European Patent Office
Prior art keywords
boom
brush
cylinder
tunnel
axis
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EP19850890282
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German (de)
French (fr)
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EP0184577A2 (en
EP0184577A3 (en
Inventor
Hans Zellinger
Fritz Zellinger
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Zellinger GmbH
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Zellinger GmbH
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/005—Mobile installations, particularly for upkeeping in situ road or railway furniture, for instance road barricades, traffic signs; Mobile installations particularly for upkeeping tunnel walls

Definitions

  • the invention relates to a tunnel washing vehicle with a brush arm according to the preamble of claim 1.
  • Such a tunnel washing vehicle with a brush arm is known from AT-A-344 232 and FR-A-2 338 350.
  • a washing liquid required for cleaning can be applied to the tunnel wall either with the aid of separate spray or spray nozzles or through the brush itself and, if necessary, rinsing can be rinsed with the brush.
  • Brushes with highly flexible, long trimmings are used, the stiffness of which changes with the speed of the brush, so that even with a cylindrical basic shape of the brush, it is possible to match the tunnel curvature.
  • the axis of rotation of the roller brush lies essentially on the chord of the curve of the tunnel.
  • the brush is adjusted to a specific strip of the tunnel wall with the help of the brush arm by swiveling around the two axes on the holder and usually with the aid of a hydraulic or pneumatic cylinder-piston unit which serves to swivel the vertical axis with an adjustable, medium working pressure against the wall pressed.
  • a control device is known which enables precise setting of the contact pressure and rapid evasion of obstacles by swiveling the brush arm back.
  • the brush can be freely pivoted about the longitudinal axis of the arm.
  • the described construction of the brush arm has proven itself in practice when cleaning tunnels of normal height, for example up to 4.5 m.
  • tunnels with greater heights for example tunnels of city motorways and supporting walls, ceiling heights of 7m and supporting wall heights of 8m occur.
  • Difficulties arise when using a brush boom of the type mentioned at the outset when the booms are pivoted onto the vehicle in the transport position. Only in the case of very long vehicles does the boom not protrude too far back over the vehicle and additional supports for the boom are necessary during the transport journey.
  • Another fundamental disadvantage of brush arms of the type mentioned at the outset results from the fact that in these known arms the roller brush is in principle arranged normally to the longitudinal direction of the arm.
  • the roller brush is no longer approximately perpendicular to the direction of travel of the vehicle and thus to the direction in which the brush is adjusted along the tunnel wall or the like during the washing process. Therefore, only a wall strip of the tunnel corresponding in its width to the projection of the brush axis onto a plane drawn perpendicular to the tunnel axis is washed, which is much narrower than the brush length.
  • a brush boom is known in which the boom in the manner of a mobile crane consists of several arms articulated to one another by transverse axes, hydraulic cylinder-piston units being provided for the pivoting adjustment of the strung arms around the joints.
  • the working length of the boom can be adjusted here by bending the arms towards each other to a greater or lesser extent.
  • the overall construction is extremely complex and usually an own operator is used to operate the brush arm.
  • a partial area of an outer housing of the boom forms the working cylinder of a piston drive, in which an annular piston can be adjusted in length by stops.
  • the ring piston is connected to an extendable section of the boom formed by a tube, which section is guided with wedges on a keyway of another tube, which can be driven by an oil motor attached laterally to the boom via an external pinion via a drive chain, so that the brush can be adjusted by turning it around the longitudinal axis of the boom.
  • the object of the invention is to provide a tunnel washing vehicle which, despite maintaining a simple construction of the brush arm and simple operability, is also suitable for use at large working heights.
  • the boom length and the relative swivel position of the roller brush around the longitudinal axis of the boom can be adjusted from the driver's cab of the washing vehicle via a remote control, so that the roller brush can be precisely adjusted to the desired, even with changing crown heights of tunnels, underpasses, etc. the current washing process can be adjusted strips without having to leave the cab or work on the boom itself.
  • the cylinder-piston unit forms one or the load-bearing component of the boom. Brushes can also be used, the focus of which is not on the longitudinal axis of the boom.
  • the overload clutch prevents damage from bending connecting parts or overloading the actuator, for example if the roller brush hits one end of a tunnel wall or an obstacle.
  • the design according to claim 6 makes it possible to set the roller brush exactly at right angles to the washing direction even with the boom set steeply, so that the full brush length is effective for the width of the washing strip. Conversely, in the case of a very strongly arched tunnel, the width of the washing strip can be reduced by adjusting the brush from the transverse position.
  • a washing vehicle 1 which is designed as a truck with tank 2.
  • a standing column 3 is provided on the vehicle, which can be remotely rotated about its vertical axis via a hydraulic or pneumatic drive (not shown).
  • this pedestal 3 carries a transverse axis 4, around which a e.g. trough-shaped support piece 5 by means of a hydraulic or pneumatic piston drive, also not shown, which is supported with the second end on the column 3, can be pivoted up and down.
  • the boom consisting of a cylinder-piston unit 6, 7, shown shortened in FIG. 2 of the drawing, can be pivoted out into an operating position at an acute angle to the washing vehicle 1 while pivoting about the axis determined by the column 3 and about the transverse axis 4. If necessary, a single washing vehicle can be equipped with one or more brush arms on corresponding columns 3.
  • the cylinder 6 has a reinforced base 8 and is pivotable in the vicinity of this base 8 with the support piece 5 about the axis 4.
  • the piston 7 of the cylinder-piston unit consists of a tube with a stepped outside, the stepped part 9 allowing an extension from the cylinder 6 up to the stop determined by paragraph 10.
  • the cylinder spaces 13, 14 lying on both sides of an end collar 12 of the piston 7 provided with a seal 11 can be acted upon hydraulically via lines (not shown) and shut-off elements which can be operated remotely from the driver's cab of the washing vehicle 1 in the direction of retraction or extension of the piston 7.
  • a support plate 15 on which a brush holder 17 can be pivoted about a transverse axis 16, the pivoting position of the brush holder 17 being adjustable by means of a hydraulic actuator 18 which can also be operated remotely.
  • the brush holder 17 can form a fork in a known manner, between the ends of which a roller brush 19 rotatably supports parallel to the holder 17.
  • a hydraulic motor 20 can be provided for driving the roller brush 19.
  • the brush holder 17 can also carry spray nozzles for the supply of washing and rinsing liquid to the brush area.
  • the piston 7 is rotatably supported in the cylinder 6 about the longitudinal axis.
  • a hydraulic servomotor 21 is used which drives a detent coupling 23 via its shaft 22, in which two disks are pressed against one another by a spring 24 and these disks are recesses for have the common inclusion of balls 25. If a torque predetermined by the setting of the spring 24 is exceeded, then the two disks of the detent coupling 23 can rotate when the balls 25, which are preferably contained in a cage, emerge from the detent recesses. If, after such a rotation, the brush holder 17 is pivoted back into the starting position with the brush 19, then the locking is restored.
  • An output shaft 26 of the clutch 23 is rotatable but axially immovable in the bottom 8 of the cylinder 6 stored.
  • the motor 21 is supported with its housing on the holder 5, but can also be fastened to the bottom 8 of the cylinder 6.
  • the shaft 26 has an extension designed as a profile shaft, spline shaft or profile rod 27, with which a bottom part 28 of the piston 7, which has a corresponding opening, is displaceable but non-rotatably engaged, so that the piston 7 rotates from the servomotor 21 via the clutch 23 and so that the brush holder 17 can be pivoted with the brush 19 about the longitudinal axis of the boom.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning In General (AREA)

Description

Die Erfindung betrifft ein Tunnelwaschfahrzeug mit einem Bürstenausleger gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a tunnel washing vehicle with a brush arm according to the preamble of claim 1.

Ein derartiges Tunnelwaschfahrzeug mit Bürstenausleger ist aus der AT-A-344 232 und der FR-A-2 338 350 bekannt. Beim Betrieb des Tunnelwaschfahrzeuges kann eine für die Reinigung benötigte Waschflüssigkeit entweder mit Hilfe gesonderter Sprüh- oder Spritzdüsen oder durch die Bürste selbst hindurch auf die Tunnelwand aufgebracht und es kann im Bedarfsfall mit der Bürste nachgeordneten Spritzdüsen nachgespült werden. Es werden Bürsten mit hochflexiblem, langem Besatz verwendet, dessen Steifigkeit sich mit der Drehzahl der Bürste ändert, so daß auch bei einer zylindrischen Grundform der Bürste eine Angleichung an die Tunnelwölbung möglich ist. Die Drehachse der Walzenbürste liegt beim Betrieb im wesentlichen auf der Sehne der Wölbungskurve des Tunnels.Such a tunnel washing vehicle with a brush arm is known from AT-A-344 232 and FR-A-2 338 350. When the tunnel washing vehicle is in operation, a washing liquid required for cleaning can be applied to the tunnel wall either with the aid of separate spray or spray nozzles or through the brush itself and, if necessary, rinsing can be rinsed with the brush. Brushes with highly flexible, long trimmings are used, the stiffness of which changes with the speed of the brush, so that even with a cylindrical basic shape of the brush, it is possible to match the tunnel curvature. During operation, the axis of rotation of the roller brush lies essentially on the chord of the curve of the tunnel.

Beim Betrieb wird die Bürste mit Hilfe des Bürstenauslegers unter Schwenkung um die beiden Achsen an der Halterung auf einen bestimmten Streifen derTunnelwand eingestellt und meist mit Hilfe einer der Schwenkverstellung um die Vertikalachse dienenden hydraulischen oder pneumatischen Zylinder-Kolbeneinheit mit einem einstellbaren, mittleren Arbeitsdruck gegen die Wand gedrückt. Aus der erwähnten AT-A-1 344 232 ist eine Regeleinrichtung bekannt, die eine genaue Einstellung des Andrückdruckes und ein rasches Ausweichen an Hindernissen durch Zurückschwenken des Bürstenauslegers ermöglicht. Bei dem bekannten Bürstenausleger ist die Bürste um die Längsachse des Auslegers frei verschwenkbar.During operation, the brush is adjusted to a specific strip of the tunnel wall with the help of the brush arm by swiveling around the two axes on the holder and usually with the aid of a hydraulic or pneumatic cylinder-piston unit which serves to swivel the vertical axis with an adjustable, medium working pressure against the wall pressed. From the AT-A-1 344 232 mentioned a control device is known which enables precise setting of the contact pressure and rapid evasion of obstacles by swiveling the brush arm back. In the known brush arm, the brush can be freely pivoted about the longitudinal axis of the arm.

Die beschriebene Konstruktion des Bürstenauslegers hat sich in der Praxis beim Reinigen von Tunnels normaler Höhe, beispielsweise bis zu 4,5m bewährt. Beim Einsatz eines mit einem entsprechenden Ausleger ausgestatteten Waschfahrzeuges zum Waschen von Straßenunterführungen, Tunnels mit größeren Höhen, beispielsweise Tunnels von Stadtautobahnen und von Stützwänden, kommen Deckenhöhen von 7m und Stützwandhöhen von 8m vor. Hier ergeben sich bei Verwendung eines Bürstenauslegers der eingangs genannten Art Schwierigkeiten, wenn die Ausleger in der Transportstellung an das Fahrzeug angeschwenkt werden. Nur bei sehr langen Fahrzeugen ragt hier nämlich der Ausleger nicht zu weit nach hinten über das Fahrzeug vor und es werden bei der Transportfahrt zusätzliche Abstützungen für die Ausleger notwendig. Ein weiterer grundsätzlicher Nachteil von Bürstenauslegern der eingangs genannten Art ergibt sich dadurch, daß bei diesen bekannten Auslegern die Walzenbürste grundsätzlich normal zur Auslegerlängsrichtung angeordnet wird. Stellt man den Ausleger unter einem steileren Winkel zum Fahrzeug an, dann steht hier die Walzenbürste nicht mehr annähernd senkrecht zur Fahrtrichtung des Fahrzeuges und damit zu jener Richtung, in der die Bürste beim Waschvorgang entlang der Tunnelwand od. dgl. verstellt wird. Es wird daher nur mehr ein in seiner Breite der Projektion der Bürstenachse auf eine senkrecht zur Tunnelachse gezogene Ebene entsprechender Wandstreifen des Tunnels gewaschen, der wesentlich schmäler ist als die Bürstenlänge.The described construction of the brush arm has proven itself in practice when cleaning tunnels of normal height, for example up to 4.5 m. When using a washing vehicle equipped with an appropriate extension arm for washing underpasses, tunnels with greater heights, for example tunnels of city motorways and supporting walls, ceiling heights of 7m and supporting wall heights of 8m occur. Difficulties arise when using a brush boom of the type mentioned at the outset when the booms are pivoted onto the vehicle in the transport position. Only in the case of very long vehicles does the boom not protrude too far back over the vehicle and additional supports for the boom are necessary during the transport journey. Another fundamental disadvantage of brush arms of the type mentioned at the outset results from the fact that in these known arms the roller brush is in principle arranged normally to the longitudinal direction of the arm. If the boom is positioned at a steeper angle to the vehicle, then the roller brush is no longer approximately perpendicular to the direction of travel of the vehicle and thus to the direction in which the brush is adjusted along the tunnel wall or the like during the washing process. Therefore, only a wall strip of the tunnel corresponding in its width to the projection of the brush axis onto a plane drawn perpendicular to the tunnel axis is washed, which is much narrower than the brush length.

Aus der DE-A-1 15 34 163 ist ein Bürstenausleger bekannt, bei dem der Ausleger nach Art eines Autokranes aus mehreren untereinander durch Querachsen gelenkig verbundenen Armen besteht, wobei für die Schwenkverstellung der aneinandergereihten Arme um die Gelenke hydraulische Zylinder-Kolbeneinheiten vorgesehen sind. Die Arbeitslänge des Auslegers kann hier durch mehr oder weniger starkes Abknicken der Arme gegeneinander eingestellt werden. Die Gesamtkonstruktion ist äußerst aufwendig und es wird meist eine eigene Bedienungsperson für die Bedienung des Bürstenauslegers eingesetzt.From DE-A-1 15 34 163 a brush boom is known in which the boom in the manner of a mobile crane consists of several arms articulated to one another by transverse axes, hydraulic cylinder-piston units being provided for the pivoting adjustment of the strung arms around the joints. The working length of the boom can be adjusted here by bending the arms towards each other to a greater or lesser extent. The overall construction is extremely complex and usually an own operator is used to operate the brush arm.

Aus der US-A-3 460 177 ist eine Waschanlage für Flugzeuge bekannt, bei der zu beiden Seiten einer Rollbahn für ein Flugzeug Schienen mit Turmkränen vorgesehen sind, die am Kranturm der Höhe nach verstellbare Ausleger tragen, an deren Enden Fahrerkabinen sitzen, von denen aus verhältnismäßig kurze Bürstenausleger betätigt werden. Die Fahrerkabinen sind um Vertikalachsen schwenkbar. Die grobe Höheneinstellung erfolgt durch Verstellung des Auslegers entlang des Kranturmes. Zusätzlich können die Türme selbst um ihr Fahrgestell geschwenkt werden. Die Bedienungsperson blickt in Richtung Ausleger und Bürste aus der Fahrerkabine. Der Bürstenausleger ist an der Fahrerkabine um eine Horizontalachse auf- und niederschwenkbar. Ein Teilbereich eines Aussengehäuses des Auslegers bildet den Arbeitszylinder eines Kolbentriebes, in dem ein Ringkolben durch Anschläge begrenzt der Länge nach verstellbar ist. Der Ringkolben steht mit einem ausfahrbaren von einem Rohr gebildeten Teilstück des Auslegers in Verbindung, welches Teilstück mit Keilen an einer Keilnut eines weiteren Rohres geführt ist, das über ein äußeres Ritzel über eine Antriebskette von einem seitlich am Ausleger befestigten Ölmotor antreibbar ist, so daß auch eine Einstellung der Bürste durch Verdrehung um die Auslegerlängsachse möglich ist. Eine Übertragung der Auslegerkonstruktion auf normale Tunnelwaschfahrzeuge erscheint unmöglich.From US-A-3 460 177 a washing system for aircraft is known, in which rails with tower cranes are provided on both sides of a runway for an aircraft, which carry height-adjustable booms on the crane tower, at the ends of which there are driver's cabins, of which can be operated from relatively short brush booms. The driver's cab can be swiveled around vertical axes. The rough height adjustment is done by adjusting the jib along the crane tower. In addition, the towers themselves can be swiveled around their chassis. The operator looks in the direction of the boom and brush from the driver's cabin. The brush arm can be swiveled up and down on the driver's cab around a horizontal axis. A partial area of an outer housing of the boom forms the working cylinder of a piston drive, in which an annular piston can be adjusted in length by stops. The ring piston is connected to an extendable section of the boom formed by a tube, which section is guided with wedges on a keyway of another tube, which can be driven by an oil motor attached laterally to the boom via an external pinion via a drive chain, so that the brush can be adjusted by turning it around the longitudinal axis of the boom. A transfer of the boom construction to normal tunnel washing vehicles seems impossible.

Aufgabe der Erfindung ist es, ein Tunnelwaschfahrzeug zu schaffen, das trotz Beibehaltung einer einfachen Bauweise des Bürstenauslegers und einer einfachen Bedienbarkeit auch für den Einsatz bei großen Arbeitshöhen geeignet ist.The object of the invention is to provide a tunnel washing vehicle which, despite maintaining a simple construction of the brush arm and simple operability, is also suitable for use at large working heights.

Die gestellte Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst.The object is achieved by the features of claim 1.

Die Auslegerlänge und die relative Schwenkstellung der Walzenbürste um die Auslegerlängsachse können vom Fahrerhaus des Waschfahrzeuges her über eine Fernsteuerung eingestellt werden, so daß die Walzenbürste auch bei wechselnden Scheitelhöhen von Tunnels, Unterführungen usw. jeweils genau auf den gewünschten, dem momentanen Waschvorgang unterworfenen Streifen eingestellt werden kann, ohne daß dazu das Fahrerhaus verlassen oder am Ausleger selbst gearbeitet werden muß. Die Zylinder-Kolbeneinheit bildet einen bzw. den tragenden Bestandteil des Auslegers. Es können auch Bürsten eingesetzt werden, deren Schwerpunkt nicht etwa auf der Längsachse des Auslegers liegt. Die Überlastkupplung verhindert Beschädigungen durch Verbiegen von Verbindungsteilen oder durch Überbelastung des Stelltriebes, wenn beispielsweise die Walzenbürste mit einem Ende an eine Tunnelwand oder ein Hindernis schlägt.The boom length and the relative swivel position of the roller brush around the longitudinal axis of the boom can be adjusted from the driver's cab of the washing vehicle via a remote control, so that the roller brush can be precisely adjusted to the desired, even with changing crown heights of tunnels, underpasses, etc. the current washing process can be adjusted strips without having to leave the cab or work on the boom itself. The cylinder-piston unit forms one or the load-bearing component of the boom. Brushes can also be used, the focus of which is not on the longitudinal axis of the boom. The overload clutch prevents damage from bending connecting parts or overloading the actuator, for example if the roller brush hits one end of a tunnel wall or an obstacle.

Es wäre an sich möglich, den Stelltrieb für die Walzenbürste zwischen dem zur Bürste weisenden Ende des Zylinders der Zylinder-Kolbeneinheit und der Bürste bzw. dem Kolben vorzusehen. Einfacher und vorteilhafter ist jedoch eine Ausbildung gemäß Anspruch 2.It would be possible per se to provide the actuator for the roller brush between the end of the cylinder of the cylinder-piston unit facing the brush and the brush or the piston. However, an embodiment according to claim 2 is simpler and more advantageous.

Eine einfache Ausbildung für die Verlängerung der Welle entnimmt man dem Anspruch 3. Hier kann man für einen Bürstenausleger nach der AT-A-344232 und den gegenständlichen Bürstenausleger gleiche Halterungen am Fahrzeug vorsehen, wobei der Zylinder der Zylinder-Kolbeneinheit an diesen Halterungen befestigt wird. Die bei zylindrischen Kolben und Zylindern gegebene Drehbarkeit dieser Teile gegeneinander wird für die drehbare Lagerung der Bürste um die Auslegerlängsachse ausgenützt.A simple design for the extension of the shaft can be found in claim 3. Here you can provide the same brackets for a brush boom according to AT-A-344232 and the subject brush boom on the vehicle, the cylinder of the cylinder-piston unit being fastened to these brackets. The rotatability of these parts relative to each other in the case of cylindrical pistons and cylinders is used for the rotatable mounting of the brush about the longitudinal axis of the boom.

Mögliche Ausbildungen der Überlastkupplungen sind in den Ansprüchen 4 und 5 angegeben. Dazu wird bemerkt, daß Kupplungen mit Drehmomentbegrenzungen an sich in verschiedenen Ausführungen bekannt sind. Rastenkupplungen und Rastengesperre haben gegenüber ebenfalls einsetzbaren Rutschkupplungen den Vorteil, daß bei dem meist nur begrenzten Verstellweg des Stelltriebes die Ausgangslage zwischen Bürste und Stelltrieb durch Zurückstellen der Bürste bis zum Einrasten leicht wieder hergestellt werden kann.Possible designs of the overload clutches are specified in claims 4 and 5. It should be noted that couplings with torque limits are known per se in various designs. Locking clutches and locking ratchets have the advantage over slip clutches that can also be used that the starting position between the brush and the actuator can be easily restored by resetting the brush until it snaps in, given the mostly limited adjustment path of the actuator.

Die Ausbildung nach Anspruch 6 ermöglicht es, die Walzenbürste auch bei steil eingestelltem Ausleger genau quer zur Waschrichtung einzustellen, so daß die volle Bürstenlänge für die Breite des Waschstreifens wirksam wird. Umgekehrt kann bei sehr stark gewölbtem Tunnel durch aus der Querstellung abweichende Einstellung der Bürste die Breite des Waschstreifens verringert werden.The design according to claim 6 makes it possible to set the roller brush exactly at right angles to the washing direction even with the boom set steeply, so that the full brush length is effective for the width of the washing strip. Conversely, in the case of a very strongly arched tunnel, the width of the washing strip can be reduced by adjusting the brush from the transverse position.

In der Zeichnung ist der Erfindungsgegenstand beispielsweise veranschaulicht. Es zeigt

  • Fig. 1 in schematisierter Darstellungsweise ein mit einem Bürstenausleger versehenes Waschfahrzeug in Draufsich bei in einer Arbeitsstellung befindlichem Bürstenausleger und
  • Fig. 2 den Bürstenausleger schematisiert im Teillängsschnitt.
The subject matter of the invention is illustrated in the drawing, for example. It shows
  • Fig. 1 in a schematic representation of a washing vehicle provided with a brush boom in top view with the brush boom in a working position and
  • Fig. 2 schematically shows the brush arm in partial longitudinal section.

Nach Fig. 1 ist ein Waschfahrzeug 1 vorgesehen, das als Lastkraftwagen mit Tank 2 ausgebildet ist. Am Fahrzeug ist beim Ausführungsbeispiel eine Standsäule 3 vorgesehen, die über einen nicht dargestellten hydraulischen oder pneumatischen Antrieb ferngesteuert um ihre Vertikalachse drehbar ist. Am oberen Ende trägt diese Standsäule 3 eine Querachse 4, um die ein z.B. rinnenförmiges Tragstück 5 mittels eines ebenfalls nicht dargestellten hydraulischen oder pneumatischen Kolbentriebes, der mit dem zweiten Ende an der Säule 3 abgestützt ist, auf- und niederschwenkbar ist.1, a washing vehicle 1 is provided, which is designed as a truck with tank 2. In the exemplary embodiment, a standing column 3 is provided on the vehicle, which can be remotely rotated about its vertical axis via a hydraulic or pneumatic drive (not shown). At the upper end, this pedestal 3 carries a transverse axis 4, around which a e.g. trough-shaped support piece 5 by means of a hydraulic or pneumatic piston drive, also not shown, which is supported with the second end on the column 3, can be pivoted up and down.

Der aus einer in Fig. 2 der Zeichnung verkürzt dargestellten Zylinder-Kolbeneinheit 6, 7 bestehende Ausleger kann unter Verschwenkung um die durch die Säule 3 bestimmte Achse und um die Querachse 4 spitzwinkelig zum Waschfahrzeug 1 in eine Arbeitsstellung ausgeschwenkt werden. Im Bedarfsfall kann ein einziges Waschfahrzeug mit ein oder mehreren Bürstenauslegern an entsprechenden Säulen 3 ausgestattet werden.The boom consisting of a cylinder-piston unit 6, 7, shown shortened in FIG. 2 of the drawing, can be pivoted out into an operating position at an acute angle to the washing vehicle 1 while pivoting about the axis determined by the column 3 and about the transverse axis 4. If necessary, a single washing vehicle can be equipped with one or more brush arms on corresponding columns 3.

Der Zylinder 6 hat einen verstärkten Boden 8 und ist in der Nähe dieses Bodens 8 mit dem Tragstück 5 um die Achse 4 schwenkbar.The cylinder 6 has a reinforced base 8 and is pivotable in the vicinity of this base 8 with the support piece 5 about the axis 4.

Der Kolben 7 der Zylinder-Kolbeneinheit besteht aus einem Rohr mit abgesetzter Außenseite, wobei der abgesetzte Teil 9 ein Ausfahren aus dem Zylinder 6 bis zu dem durch den Absatz 10 bestimmten Anschlag zuläßt. Die beidseits eines mit einer Dichtung 11 versehenen Endbundes 12 des Kolbens 7 liegenden Zylinderräume 13, 14 sind über nicht dargestellte Leitungen und über vom Fahrerhaus des Waschfahrzeuges 1 her ferngesteuert betätigbare Absperrorgane im Ein- bzw. Ausfahrsinn des Kolbens 7 hydraulisch beaufschlagbar.The piston 7 of the cylinder-piston unit consists of a tube with a stepped outside, the stepped part 9 allowing an extension from the cylinder 6 up to the stop determined by paragraph 10. The cylinder spaces 13, 14 lying on both sides of an end collar 12 of the piston 7 provided with a seal 11 can be acted upon hydraulically via lines (not shown) and shut-off elements which can be operated remotely from the driver's cab of the washing vehicle 1 in the direction of retraction or extension of the piston 7.

Am freien Ende des Kolbens 7 sitzt eine Tragplatte 15 an der um eine Querachse 16 eine Bürstenhalterung 17 schwenkbar ist, wobei die Schwenklage der Bürstenhalterung 17 mittels eines ebenfalls ferngesteuert betätigbaren hydraulischen Stelltriebes 18 eingestellt werden kann. Die Bürstenhalterung 17 kann in bekannter Weise eine Gabel bilden, zwischen deren Enden eine Walzenbürste 19 parallel zur Halterung 17 drehbar lagert. Für den Antrieb der Walzenbürste 19 kann ein Hydraulikmotor 20 vorgesehen sein. Die Bürstenhalterung 17 kann auch noch Spritzdüsen für die Zufuhr von Wasch- und Spülflüssigkeit zum Bürstenbereich tragen.At the free end of the piston 7 there is a support plate 15 on which a brush holder 17 can be pivoted about a transverse axis 16, the pivoting position of the brush holder 17 being adjustable by means of a hydraulic actuator 18 which can also be operated remotely. The brush holder 17 can form a fork in a known manner, between the ends of which a roller brush 19 rotatably supports parallel to the holder 17. A hydraulic motor 20 can be provided for driving the roller brush 19. The brush holder 17 can also carry spray nozzles for the supply of washing and rinsing liquid to the brush area.

Der Kolben 7 ist im Zylinder 6 um die Längsachse drehbar gelagert. Für die Einstellung einer vorwählbaren Drehstellung des Kolbens 7 gegenüber dem Zylinder 6 und damit der Bürstenhalterung 17 dient ein hydraulischer Stellmotor 21, der über seine Welle 22 eine Rastenkupplung 23 antreibt, bei der zwei Scheiben durch eine Feder 24 gegeneinander gedrückt werden und diese Scheiben Vertiefungen für die gemeinsame Aufnahme von Kugeln 25 aufweisen. Wird ein durch die Einstellung der Feder 24 vorbestimmtes Drehmoment überschritten, dann können sich die beiden Scheiben der Rastenkupplung 23 unter Austritt der vorzugsweise in einem Käfig gefaßten Kugeln 25 aus den Rastvertiefungen verdrehen. Wird nach einer solchen Verdrehung die Bürstenhalterung 17 mit der Bürste 19 wieder in die Ausgangslage zurückgeschwenkt, dann wird die Verrastung wieder hergestellt.The piston 7 is rotatably supported in the cylinder 6 about the longitudinal axis. For the setting of a preselectable rotational position of the piston 7 relative to the cylinder 6 and thus the brush holder 17, a hydraulic servomotor 21 is used which drives a detent coupling 23 via its shaft 22, in which two disks are pressed against one another by a spring 24 and these disks are recesses for have the common inclusion of balls 25. If a torque predetermined by the setting of the spring 24 is exceeded, then the two disks of the detent coupling 23 can rotate when the balls 25, which are preferably contained in a cage, emerge from the detent recesses. If, after such a rotation, the brush holder 17 is pivoted back into the starting position with the brush 19, then the locking is restored.

Eine Abtriebswelle 26 der Kupplung 23 ist drehbar, aber axial unverschiebbar im Boden 8 des Zylinders 6 gelagert. Der Motor 21 ist beim Ausführungsbeispiel mit seinem Gehäuse an der Halterung 5 abgestützt, kann aber auch am Boden 8 des Zylinders 6 befestigt sein. Die Welle 26 besitzt eine als Profilwelle, Keilwelle oder profilstab 27 ausgebildete Verlängerung, mit der ein eine entsprechende Öffnung aufweisender Bodenteil 28 des Kolbens 7 verschiebbar, aber drehfest im Eingriff steht, so daß der Kolben 7 vom Stellmotor 21 her über die Kupplung 23 verdreht und damit die Bürstenhalterung 17 mit der Bürste 19 um die Längsachse des Auslegers verschwenkt werden kann.An output shaft 26 of the clutch 23 is rotatable but axially immovable in the bottom 8 of the cylinder 6 stored. In the exemplary embodiment, the motor 21 is supported with its housing on the holder 5, but can also be fastened to the bottom 8 of the cylinder 6. The shaft 26 has an extension designed as a profile shaft, spline shaft or profile rod 27, with which a bottom part 28 of the piston 7, which has a corresponding opening, is displaceable but non-rotatably engaged, so that the piston 7 rotates from the servomotor 21 via the clutch 23 and so that the brush holder 17 can be pivoted with the brush 19 about the longitudinal axis of the boom.

Claims (6)

1. A tunnel-washing vehicle comprising a brush boom which has an adjustable working length and which at one end is pivoted to a holder (3) of the vehicle (1) about a vertical axis and an axis (4) which is transverse thereto and said boom extends rearwardly from the holder (3) and is pivotally movable about said axis to extend in a working position at an acute angle to the vehicle (1) and at its free end carries a roller brush (19), which is pivoted on the longitudinal axis of the boom and is drivable to rotate about the transverse axis of the roller, characterized in that the boom is constituted at least in a major part of its length by a cylinder-piston unit (6, 7), which is pneumatically or hydraulically telescopically adjustable in length, the roller brush (19) is pivotally movable about the longitudinal axis of the boom from the vehicle-side end of the boom by means of a hydraulic or pneumatic actuator (21) which acts on the piston (7) and with utilization of the rotatability of the piston (7) in the cylinder (6) of the cylinder-piston unit (6, 7) and an overload clutch (23) is provided in the drive train between the actuator (21) and the roller brush (19).
2. A tunnel-washing vehicle according to claim 1, characterized in that a positioning motor (21) which constitutes the actuator for pivotally moving the roller brush (19) for pivotally moving the boom is provided at that end (8) of the boom which is directed towards the vehicle (1) and said positioning motor (21) drives via the overload clutch (23) a shaft (26), which extends in the longitudinal direction of the boom and is rotatably but axially non-displaceable mounted in the bottom of the cylinder (6) of the cylinder-piston unit (6, 7), which cylinder is supported on the holder (5) of the vehicle, and said shaft has a longitudinal extension (27), which non-rotatably but axially displaceably extends into the piston (7) of the cylinder-piston unit (6, 7).
3. A tunnel-washing vehicle according to claim 2, characterized in that the longitudinal extension of the shaft (26) is a profiled rod (27), which extends into an opening of a bottom part (28) of the piston (7), which opening has a matching profile.
4. A tunnel-washing vehicle according to any of claims 1 to 3, characterized in that the overload clutch consists of a notched clutch (23) for uncoupling under an overload.
5. A tunnel-washing vehicle according to any of claims 1 to 3, characterized in that the overload clutch consists of a notched-ratchet and pawl mechanism for uncoupling under an overload.
6. A tunnel-washing vehicle according to any of claims 1 to 5, characterized in that the roller brush (9) is additionally pivotally movable at the end (9) of the boom by means of an actuator (18) about an axis (16) which is transverse to the axis of rotation of the brush roller and to the longitudinal axis of the boom (6, 7).
EP19850890282 1984-12-04 1985-11-14 Broom boom for a tunnel cleaning apparatus Expired - Lifetime EP0184577B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3842/84 1984-12-04
AT0384284A AT380711B (en) 1984-12-04 1984-12-04 BRUSH BOOM FOR A TUNNEL WASHING VEHICLE

Publications (3)

Publication Number Publication Date
EP0184577A2 EP0184577A2 (en) 1986-06-11
EP0184577A3 EP0184577A3 (en) 1987-06-03
EP0184577B1 true EP0184577B1 (en) 1990-07-18

Family

ID=3556169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850890282 Expired - Lifetime EP0184577B1 (en) 1984-12-04 1985-11-14 Broom boom for a tunnel cleaning apparatus

Country Status (3)

Country Link
EP (1) EP0184577B1 (en)
AT (1) AT380711B (en)
DE (1) DE3578746D1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29603775U1 (en) * 1996-03-01 1996-11-07 Gesa Hygiene + Instandhaltung für technische Anlagen Böhner + Schönfelder GmbH + Co.KG, 86165 Augsburg Vehicle for cleaning sewers
CN107366248A (en) * 2017-09-11 2017-11-21 胡晓燕 A kind of small-sized greenbelt step electric sweeper used on road

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT398442B (en) * 1993-05-10 1994-12-27 Zellinger Gmbh BRUSH EXTENSION FOR TUNNEL WASHING VEHICLES
EP0972947B1 (en) 1998-07-14 2004-08-18 Zellinger Gesellschaft m.b.H. Brush boom system of a tunnel washing vehicle
CN110694308A (en) * 2019-10-11 2020-01-17 湖北大学 Secondary sedimentation tank cleaning device and cleaning method thereof
CN114703784A (en) * 2022-04-18 2022-07-05 徐州徐工环境技术有限公司 Rolling brush device of cleaning vehicle
CN114717998A (en) * 2022-04-21 2022-07-08 徐州徐工环境技术有限公司 Rolling brush laminating system based on tunnel wall radian

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460177A (en) * 1967-08-28 1969-08-12 Brown Eng Co Inc Aircraft washing system
FR2266768A1 (en) * 1974-04-04 1975-10-31 Dumont Jean Vehicle for cleaning highway tunnels - has water fed brush on articulating arm on rotating turret
AT344232B (en) * 1976-01-14 1978-07-10 Zellinger Gmbh TUNNEL WASHING VEHICLE
US4746320A (en) * 1979-12-14 1988-05-24 Unidynamics Corporation Torque limiting clutch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29603775U1 (en) * 1996-03-01 1996-11-07 Gesa Hygiene + Instandhaltung für technische Anlagen Böhner + Schönfelder GmbH + Co.KG, 86165 Augsburg Vehicle for cleaning sewers
CN107366248A (en) * 2017-09-11 2017-11-21 胡晓燕 A kind of small-sized greenbelt step electric sweeper used on road

Also Published As

Publication number Publication date
DE3578746D1 (en) 1990-08-23
AT380711B (en) 1986-06-25
EP0184577A2 (en) 1986-06-11
ATA384284A (en) 1985-11-15
EP0184577A3 (en) 1987-06-03

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