EP3964657B1 - Channel cleaning vehicle - Google Patents

Channel cleaning vehicle Download PDF

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Publication number
EP3964657B1
EP3964657B1 EP20194995.5A EP20194995A EP3964657B1 EP 3964657 B1 EP3964657 B1 EP 3964657B1 EP 20194995 A EP20194995 A EP 20194995A EP 3964657 B1 EP3964657 B1 EP 3964657B1
Authority
EP
European Patent Office
Prior art keywords
telescopic boom
roller
pressure hose
hose
support rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20194995.5A
Other languages
German (de)
French (fr)
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EP3964657A1 (en
Inventor
Frank Assmann
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Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP20194995.5A priority Critical patent/EP3964657B1/en
Priority to DK20194995.5T priority patent/DK3964657T3/en
Publication of EP3964657A1 publication Critical patent/EP3964657A1/en
Application granted granted Critical
Publication of EP3964657B1 publication Critical patent/EP3964657B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools
    • E03F7/106—Accessories, e.g. hose support
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools

Definitions

  • the invention relates to a vehicle for loosening and sucking off impurities from sewers and sludge pits.
  • Such vehicles are generally referred to as sewer cleaning vehicles.
  • a high-pressure hose and a suction hose are inserted into the canal. Water is pumped into the canal through the high-pressure hose; this water is also used to propel the high-pressure hose into the canal.
  • the high-pressure hose By pulling the high-pressure hose backwards through the channel, the water escaping backwards through a nozzle of the high-pressure hose can clean dirt adhering to the channel wall.
  • the accumulated sludge components are then sucked through the suction hose into a storage tank of the sewer cleaning vehicle.
  • a sewer cleaning vehicle in which the telescopic boom with suction hose and high-pressure hose should be pivotable by at least 360 degrees, resulting in an annular working area around the sewer cleaning vehicle.
  • the high-pressure hose is looped around a pivot bearing located on the vehicle, overlapping at least a little. This leads to increased friction, which restricts the propulsion and mobility of the high-pressure hose.
  • the DE 20 2016 002 943 U1 discloses a sewer cleaning vehicle with a pivotable telescopic boom, in which the high-pressure hose and the suction hose are guided together.
  • the high pressure hose is mounted on a hose reel so that it can be wound up and unwound and is guided out of the vehicle approximately parallel to the longitudinal axis of the vehicle and into the telescopic boom.
  • the telescopic boom is rotatably mounted on a horizontally arranged rotary bearing. This rotary bearing has a storage unit for the suction hose in the form of a hose reel.
  • the rotary bearing also has rollers for the high-pressure hose, which are arranged in a circle around the axis of the rotary bearing and are present below the hose reel for the suction hose.
  • the high-pressure hose In a first position of the telescopic boom, the high-pressure hose is at least partially in contact with the roller bodies of the rotary bearing, while in a second position of the telescopic boom, the high-pressure hose is guided directly from the hose reel into the telescopic boom without touching the roller bodies of the rotary bearing. In this way, a working range of around 320 degrees can be covered by the telescopic boom.
  • the invention is based on the object of specifying an improved sewer cleaning vehicle that enables the high-pressure hose to be guided as securely as possible.
  • the vehicle according to the invention for loosening and sucking up contaminants from sewers and sludge pits has a pivotable telescopic boom which can be positioned over the opening of the sewer or sludge pit.
  • a high-pressure hose can be wound and unwound on a hose reel.
  • the high-pressure hose can be approximately parallel to the longitudinal axis of the vehicle out of the vehicle and into the telescopic boom.
  • a suction hose is stored in a storage device on the vehicle so that it can be pulled in and out.
  • the high-pressure hose and the suction hose are routed together in the telescopic boom.
  • the telescopic boom is rotatably mounted on a horizontally arranged rotary bearing. This pivot bearing has roller bodies for the high-pressure hose.
  • roller bodies are arranged in a circle around the axis of the pivot bearing.
  • the pivot bearing has support rollers for the high-pressure hose, which are arranged around the axis of the pivot bearing.
  • the support rollers can be moved in such a way that in a first position they are approximately at the level of the roller bodies, so that the high-pressure hose is guided between the roller bodies and the support rollers.
  • the support rollers are present above or below the level of the roller bodies.
  • a working area of approximately 320 degrees can be covered by the telescopic boom.
  • the working area can cover both the area directly behind and the area directly in front of the vehicle. Only on the side of the vehicle is there an area that cannot be covered by the telescopic boom.
  • the sewer cleaning vehicle In order to be able to clean sewers and sludge pits in this area as well, the sewer cleaning vehicle only has to move back or forward a little. A cumbersome maneuvering of the sewer cleaning vehicle is not necessary.
  • the high-pressure hose can be prevented from slipping or jumping out of its roller track in the pivot bearing. This enables safe operation of the vehicle according to the invention even with extreme deflections of the telescopic boom.
  • the support rollers can be distributed over the entire pivot bearing and thus cover an angular range of 360 degrees.
  • the high-pressure hose is only in contact with the roller bodies of the pivot bearing in an area of less than 180 degrees, it may be sufficient to provide the support rollers only in this area of the pivot bearing and thus in an angular range of about 180 degrees. It has been found to be sufficient to provide the support rollers at a distance of about 30 to 45 degrees from one another, so that a total of five support rollers are sufficient.
  • the process of the support rollers from their first to their second position and vice versa can preferably be done via a link guide.
  • Link guides are easy to implement in terms of design and are generally not very prone to failure.
  • the link guide can have a turntable which is attached to the pivot bearing and can be rotated about the axis of the pivot bearing.
  • the link guide can have a stationary guide rail that is present below or above the turntable.
  • the support rollers can be mounted on the turntable so that they can be moved along the stationary guide rail and are vertically displaceable.
  • the stationary guide rail can be circular and have a first section and a second section. The distance between the stationary guide rail and the turntable can be smaller in the area of the first section than in the area of the second section.
  • the support rollers are therefore located in the area of the first section of the guide rail, they are aligned approximately at the same height as the roller bodies of the pivot bearing. If, on the other hand, the support rollers are in the area of the second track section, the support rollers have been moved downwards or upwards and therefore release the area of the rotary bearing to the outside.
  • the second section can therefore, in particular, in Be arranged in the pivot bearing area of the inlet of the high-pressure hose.
  • the stationary guide rail can preferably be arranged below the turntable.
  • the support rollers can each have at least one driving roller, through which the support rollers can be moved on the stationary guide rail.
  • support sleeves can be attached to the turntable, in which the support rollers are mounted so that they can be displaced longitudinally.
  • the high-pressure hose and the suction hose can be guided within the telescopic boom, at least in some areas, on roller bodies. At least some of these roller bodies can be designed to be motor-driven.
  • the pivot bearing of the telescopic boom can have a storage unit for the suction hose.
  • This storage unit can preferably be designed as a hose reel.
  • the roller bodies for the high-pressure hose can be present in particular below the storage unit of the suction hose.
  • the telescopic jib can have a jib arm that is preferably designed to be telescopic, and a guide element is integrally formed on the vehicle-side end of the jib arm.
  • This guide element can then be rotatably mounted on the pivot bearing.
  • the cantilever arm and the guide element can form an angle of approximately 100 to 110 degrees, so that the telescopic boom is designed in a quasi-kinked manner.
  • the boom arm of the telescopic boom can be designed to be telescopic once or multiple times.
  • This angled design makes it possible to further increase the working area of the sewer cleaning vehicle.
  • the telescopic boom in this case is not in the field of vision of the driver when the cantilever arm is aligned forward parallel to the longitudinal direction of the vehicle. In principle, it would therefore be possible to move the vehicle even if the telescopic boom is in front of the driver's cab. This would make the work of the driver of a vehicle according to the invention much easier and can also ensure that the travel times of the vehicle between two cleaning processes can be significantly reduced.
  • the high-pressure hose can be guided into the telescopic boom via at least one pair of rollers. If two pairs of rollers are to be present, they can form a funnel-shaped inlet for the high-pressure hose.
  • the high-pressure hose runs between the two rollers of the at least one pair of rollers.
  • the at least one pair of rollers is arranged in one plane with the roller bodies of the pivot bearing. If the telescopic boom is positioned to the side of the vehicle on the side of the hose reel for the high-pressure hose, the high-pressure hose can rest on the outer roller of the pair of rollers and be guided directly from the hose reel into the telescopic boom.
  • the high-pressure hose can lie against the inner roller of the pair of rollers and be transferred from this roller to the roller body of the rotary bearing. In this position of the telescopic boom, the high-pressure hose runs at least in sections around the rotary bearing.
  • the at least one pair of rollers of the telescopic boom can preferably be arranged in the transition area between the boom arm and the guide element and thus in the area of the bend in the telescopic boom. In this way, the high-pressure hose can be inserted directly into the boom arm of the telescopic boom, which further increases the working range of the vehicle.
  • the roller guide can be mounted to be longitudinally displaceable along the longitudinal axis of the vehicle. Such a shift would lead the high-pressure hose from the hose reel directly into the telescopic boom without touching the roller body of the rotary bearing.
  • the roller guide can preferably be displaced by the telescopic boom in the direction of the hose reel for the high-pressure hose, so that there is free space for further pivoting of the telescopic boom.
  • the roller guide can have a stop roller, through which the roller guide can be displaced through the telescopic boom.
  • the roller guide can be returned to its starting position, preferably by a restoring force.
  • This restoring force can in particular be a tension gas spring, a gas pressure spring or a pneumatic cylinder.
  • a sewer cleaning vehicle 10 has a chassis adapted to its maximum load.
  • a tank is located behind the driver's cab 12 of the vehicle 10 in a manner known per se.
  • the tank serves as a storage device to store extracted sludge.
  • other tanks or other containers could also be provided, for example to keep a supply of cleaning liquid.
  • a rotary bearing 20 is present above the tank.
  • a storage unit in the form of a hose reel 22 is rotatably fastened to the rotary bearing 20 .
  • a suction hose 24 is at least partially wound up on the hose reel 22 .
  • the hose reel 22 is rotatably mounted about the axis 26 of the pivot bearing 20 so that the suction hose 24 can be wound onto the hose reel 22 or unwound from it.
  • the suction hose 24 is connected to the tank in which the dirty water sucked in through the suction hose 24 is to be stored.
  • a telescopic boom 30 is also arranged above the tank.
  • the telescopic boom 30 is in the present example mounted below the hose reel 22 on the pivot bearing 20 and can also be pivoted about the axis 26.
  • Hose reel 22 and telescopic boom 30 can be coupled to one another in such a way that when hose reel 22 rotates about axis 26 , telescopic boom 30 is also pivoted about axis 26 .
  • the telescopic boom 30 has a telescopically designed boom arm 32 which is integrally formed on a guide element 34 at its vehicle-side end. Boom arm 32 and guide element 34 are arranged at an angle to one another, so that telescopic boom 30 has a kink 36 (see in particular 9 ).
  • the cantilever arm 32 is thus off-centre to the axis 26 of the pivot bearing 20 .
  • the rotary bearing 20 has a plurality of roller bodies 40 which are arranged in a circle around the axis 26 of the rotary bearing 20 and which have a surface which is adapted to the rounded surface of the high-pressure hose 42 (see in particular 4 ).
  • a high-pressure hose 42 can be in contact with the roller bodies 40 and guided more or less around the pivot bearing 20 depending on the position of the telescopic boom 30 .
  • the high-pressure hose 42 is mounted on a hose reel 44 and can be unwound from it and guided into the telescopic boom 30 .
  • the hose reel 44 of the high-pressure hose 42 is arranged behind the driver's cab 12 of the sewer cleaning vehicle 10 (see FIG 1 ).
  • the high-pressure hose 42 is wound off and onto the hose reel 44 approximately in the longitudinal direction 14 of the vehicle 10 .
  • the hose reel 44 is arranged below the level of the roller bodies 40, so that the high-pressure hose 42 has to be guided a little way up out of the vehicle body.
  • the high-pressure hose 42 is routed via a roller guide 46 which is fastened to the rotary bearing 20 .
  • the roller guide 46 can prevent the high-pressure hose 42 from being guided over an edge of the rotary bearing 20, which could lead to damage and the opening and closing Unwinding would be particularly difficult in the area of hose couplings.
  • the front end area of the suction hose 24 and the high-pressure hose 42 are held guided in the upper area of the telescopic boom 30 (see FIG 2 and 3 ).
  • the suction hose 24 and the high-pressure hose 42 are routed one above the other, with the high-pressure hose 42 being routed within the profile of the telescopic boom 30 in the present example and the suction hose 24 above the profile of the telescopic boom 30.
  • the suction hose is located in the area of the telescoping boom arm 32 of the telescopic boom 30 24 on roller bodies 50, which have a surface adapted to the rounded surface of the suction hose 24.
  • Comparable roller bodies are also present in the arcuate front area 52 of the cantilever arm 32 in which the suction hose 24 is guided within the profile. Some of these roller bodies 50 can be motor-driven, so that the suction hose 24 can be moved back and forth in the telescopic boom 30 .
  • the high-pressure hose 42 lies below the suction hose 24 in a V-shaped guide rail 54 of the telescopic boom 30. In the arcuate area 52 of the boom arm 32, the high-pressure hose 42 rests on roller bodies, which have a surface adapted to the rounded surface of the high-pressure hose 42.
  • roller bodies for the high-pressure hose 42 can be motor-driven, so that the high-pressure hose 42 can be moved back and forth in the telescopic boom 30 .
  • the roller bodies for the high-pressure hose 42 can be driven independently of the roller bodies 50 for the suction hose 24, so that the high-pressure hose 42 and the suction hose 24 can be wound up and unwound independently of one another.
  • the telescopic boom 30 can be extended a maximum distance 60.
  • the distance between the front end portion of the suction hose 24 and the high-pressure hose can be increased from the axis of rotation 26, so that a larger area around the vehicle 10 can be reached with the front end portion of the suction hose 24 and the high-pressure hose 42.
  • a work area 62 can be reached around the vehicle 10 in this way.
  • the work area 62 covers an angle of approximately 320 degrees around the vehicle 10 . Only a narrow angular range of about 40 degrees cannot be reached by the telescopic boom 30 in this case.
  • the narrow angular range that cannot be reached by the telescopic boom 30 can be present on the left side of the vehicle as shown in the drawing or on the right side of the vehicle. To do this, the telescopic boom 30 would only have to be mirrored.
  • the pivot bearing 20 has a total of five support rollers 70 in the present example (see, for example, 9 ).
  • the support rollers 70 are arranged approximately in a semicircle around the axis 26 of the rotary bearing 20, so that a support roller 70 is arranged approximately every 30 to 45 degrees.
  • the support rollers 70 can be moved from a first position 74 (see Figures 5 and 6 ) to a second position 76 (see Figures 7 and 8 ) can be moved back and forth.
  • the support rollers 70 are at the same height as the roller bodies 40, so that the high-pressure hose 42 is guided between the roller bodies 40 and the support rollers 70.
  • the high-pressure hose 42 can thus not jump out to the outside, so that an optimal operation of the vehicle 10 according to the invention is possible.
  • the support rollers 70 in the present embodiment are located below the roller bodies 40.
  • the support rollers 70 are moved by means of a link guide 72.
  • the link guide 72 has a turntable 80 which is arranged below the roller body 40 for the high-pressure hose 42.
  • the turntable 80 is attached to the pivot bearing 20 and can Rotate axis 26 of the pivot bearing. The rotation of the turntable 80 takes place together with the pivoting of the telescopic boom 30.
  • a stationary guide rail 82 is present below the turntable 80.
  • the stationary guide rail 82 has a first section 84 and a second section 86.
  • the first section 84 and the second section 86 together form an arc of a circle.
  • the second section 86 comprises an angular range of approximately 50 degrees.
  • the second section 86 is arranged in the inlet area of the high-pressure hose 42 into the rotary bearing 20 (see in particular 9 ). In the area of the first section 84, the distance between the stationary guide rail 82 and the turntable 80 is smaller than in the area of the second section 86 (see FIG 4 ).
  • the supporting rollers 70 each have a driving roller 88. With this driving roller 88, the supporting rollers 70 rest on the guide rail 82 and can be moved along the stationary guide rail 82.
  • the support rollers 70 are each mounted in a support sleeve 90 so as to be longitudinally displaceable.
  • the support sleeves 90 are attached to the turntable 80 so that the support sleeves 90 and thus also the support rollers 70 can be rotated together with the turntable 80 . If the support rollers 70 are located on the first section 84 of the guide rail 82, the support rollers 70 are in their in Figures 5 and 6 shown first position 74 available. If, on the other hand, the support rollers 70 are in the region of the second section 86 of the guide rail 82, the support rollers 70 are lowered and are thus in their in Figures 7 and 8 illustrated second position 76 available.
  • the telescopic boom 30 is shown in its transport position 100 .
  • the boom arm 32 of the telescopic boom 30 is in this case aligned parallel to the longitudinal direction 14 of the vehicle 10; the front end region 52 of the telescopic boom 30 is oriented counter to the direction of travel 16 towards the rear of the vehicle.
  • the high-pressure hose 42 is guided from the hose reel 44 via the roller guide 46 into the telescopic boom 30 without the roller body 40 of the rotary bearing 20 coming into contact.
  • the telescopic boom 30 has a pair of rollers in the area of the kink 36, between the two roller bodies 104, 106 of which the high-pressure hose 42 runs.
  • the telescopic boom 30 can be pivoted a little clockwise (see 11 ).
  • the telescopic boom 30 can be pivoted until the guide element 34 of the telescopic boom 30 hits a stop roller 110 of the roller guide 46 .
  • this position it may be sufficient to define this position as the end position for the telescopic boom 30 .
  • the roller guide 46 can be mounted on a rail 112 so that it can be displaced longitudinally.
  • the telescopic boom 30 could move the contact roller 110 and thus also the roller guide 46 along the rail 112 a little in the direction of the hose reel 44 in the event of further pivoting in the clockwise direction.
  • the telescopic boom 30 can be pivoted further until the 12 illustrated rear end position 114 is reached. In this rear end position 114 of the telescopic boom 30, the boom arm 32 is aligned at an angle of approximately 90 degrees to the longitudinal direction 14 of the vehicle.
  • the telescopic boom 30 can also be moved from the transport position 100 according to FIG 9 and 10 be pivoted counterclockwise so that the in 13 and 14 positions 118, 120 shown can be reached.
  • boom arm 32 in the in 13 In position 118 of the telescopic boom shown, boom arm 32 is aligned at an angle of approximately 90 degrees to vehicle longitudinal direction 14, but is located on the other side of the vehicle than in FIG 12 illustrated rear end position 114.
  • the high-pressure hose 42 rests on the inside of the roller body 104 in the telescopic boom.
  • the high-pressure hose 42 also rests against two other roller bodies 122 , 124 which are arranged in the area of the guide element 34 of the telescopic boom 30 .
  • the high-pressure hose 42 runs a little way around the pivot bearing 20 of the vehicle 10 and is in contact with some roller bodies 40 of the pivot bearing 20 .
  • the high-pressure hose 41 can be guided into the rotary bearing 20 via the roller guide 46 .
  • the high-pressure hose 42 loops further and further around the pivot bearing 20, so that more and more roller bodies 40 of the pivot bearing 20 are touched. So the high-pressure hose 42 lies in its in 14 illustrated front end position 120 on half of the roller body 40 of the pivot bearing 20.
  • a further counter-clockwise rotation of the telescopic boom 30 is prevented by the fact that the high-pressure hose 42 has to be guided upwards from the hose reel 44 into the plane of the telescopic boom 30 .

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die Erfindung betrifft ein Fahrzeug zum Lösen und Absaugen von Verunreinigungen aus Abwasserkanälen und Schlammgruben. Derartige Fahrzeuge werden allgemein als Kanalreinigungsfahrzeuge bezeichnet. Zum Reinigen eines Kanals wird ein Hochdruckschlauch und ein Saugschlauch in den Kanal hineingeführt. Durch den Hochdruckschlauch wird Wasser in den Kanal hineingepumpt; dieses Wasser wird auch zum Vortreiben des Hochdruckschlauches in den Kanal hinein benutzt. Durch Zurückziehen des Hochdruckschlauches rückwärts durch den Kanal hindurch kann das durch eine Düse des Hochdruckschlauchs rückwärts austretende Wasser die Kanalwandung von anhaftendem Schmutz reinigen. Die angesammelten Schlammbestandteile werden dann durch den Saugschlauch in einen Speicherbehälter des Kanalreinigungsfahrzeugs gesaugt.The invention relates to a vehicle for loosening and sucking off impurities from sewers and sludge pits. Such vehicles are generally referred to as sewer cleaning vehicles. To clean a canal, a high-pressure hose and a suction hose are inserted into the canal. Water is pumped into the canal through the high-pressure hose; this water is also used to propel the high-pressure hose into the canal. By pulling the high-pressure hose backwards through the channel, the water escaping backwards through a nozzle of the high-pressure hose can clean dirt adhering to the channel wall. The accumulated sludge components are then sucked through the suction hose into a storage tank of the sewer cleaning vehicle.

STAND DER TECHNIKSTATE OF THE ART

Aus der EP 2 884 017 A1 ist ein Kanalreinigungsfahrzeug bekannt, bei dem der Teleskopausleger mit Saugschlauch und Hochdruckschlauch um mindestens 360 Grad verschwenkbar sein soll, so dass sich ein ringförmiger Arbeitsbereich um das Kanalreinigungsfahrzeug ergibt. Der Hochdruckschlauch ist in diesem Fall zumindest ein Stück weit überlappend um ein am Fahrzeug befindliches Drehlager geschlungen. Dies führt zu einer erhöhten Reibung, was den Vortrieb und die Beweglichkeit des Hochdruckschlauches einschränkt.From the EP 2 884 017 A1 a sewer cleaning vehicle is known in which the telescopic boom with suction hose and high-pressure hose should be pivotable by at least 360 degrees, resulting in an annular working area around the sewer cleaning vehicle. In this case, the high-pressure hose is looped around a pivot bearing located on the vehicle, overlapping at least a little. This leads to increased friction, which restricts the propulsion and mobility of the high-pressure hose.

Die DE 20 2016 002 943 U1 offenbart ein Kanalreinigungsfahrzeug mit einem schwenkbaren Teleskopausleger, in dem der Hochdruckschlauch und der Saugschlauch gemeinsam geführt werden. Der Hochdruckschlauch ist auf einer Schlauchhaspel auf- und abwickelbar gelagert und wird etwa parallel zur Längsachse des Fahrzeuges aus dem Fahrzeug heraus und in den Teleskopausleger hinein geführt. Der Teleskopausleger ist an einem horizontal angeordneten Drehlager rotierbar gelagert. Dieses Drehlager besitzt eine Speichereinheit für den Saugschlauch in Form einer Schlauchhaspel. Das Drehlager weist darüber hinaus Rollen für den Hochdruckschlauch auf, die kreisförmig um die Achse des Drehlagers angeordnet und unterhalb der Schlauchhaspel für den Saugschlauch vorhanden sind. In einer ersten Position des Teleskopauslegers liegt der Hochdruckschlauch zumindest abschnittsweise an den Rollenkörpern des Drehlagers an, während der Hochdruckschlauch in einer zweiten Position des Teleskopauslegers ohne eine Berührung der Rollenkörper des Drehlagers direkt von der Schlauchhaspel in den Teleskopausleger geführt wird. Auf diese Weise kann ein Arbeitsbereich von etwa 320 Grad durch den Teleskopausleger abgedeckt werden.the DE 20 2016 002 943 U1 discloses a sewer cleaning vehicle with a pivotable telescopic boom, in which the high-pressure hose and the suction hose are guided together. The high pressure hose is mounted on a hose reel so that it can be wound up and unwound and is guided out of the vehicle approximately parallel to the longitudinal axis of the vehicle and into the telescopic boom. The telescopic boom is rotatably mounted on a horizontally arranged rotary bearing. This rotary bearing has a storage unit for the suction hose in the form of a hose reel. The rotary bearing also has rollers for the high-pressure hose, which are arranged in a circle around the axis of the rotary bearing and are present below the hose reel for the suction hose. In a first position of the telescopic boom, the high-pressure hose is at least partially in contact with the roller bodies of the rotary bearing, while in a second position of the telescopic boom, the high-pressure hose is guided directly from the hose reel into the telescopic boom without touching the roller bodies of the rotary bearing. In this way, a working range of around 320 degrees can be covered by the telescopic boom.

DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION

Ausgehend von diesem vorbekannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein verbessertes Kanalreinigungsfahrzeug anzugeben, das eine möglichst sichere Führung des Hochdruckschlauches ermöglicht.Proceeding from this previously known prior art, the invention is based on the object of specifying an improved sewer cleaning vehicle that enables the high-pressure hose to be guided as securely as possible.

Das erfindungsgemäße Kanalreinigungsfahrzeug ist durch die Merkmale des Hauptanspruchs 1 gegeben. Sinnvolle Weiterbildungen der Erfindung sind Gegenstand von sich an diesen Anspruch anschließenden weiteren Ansprüchen.The sewer cleaning vehicle according to the invention is given by the features of main claim 1 . Meaningful developments of the invention are the subject matter of further claims that follow this claim.

Das erfindungsgemäße Fahrzeug zum Lösen und Absaugen von Verunreinigungen aus Abwasserkanälen und Schlammgruben besitzt einen schwenkbaren Teleskopausleger, der über der Öffnung des Abwasserkanals oder der Schlammgrube positioniert werden kann. Auf einer Schlauchhaspel ist ein Hochdruckschlauch auf- und abwickelbar gelagert. Der Hochdruckschlauch kann etwa parallel zur Längsachse des Fahrzeuges aus dem Fahrzeug heraus- und in den Teleskopausleger hinein geführt werden. In einer Speichervorrichtung am Fahrzeug ist ein Saugschlauch hinein- und herausziehbar gelagert. Der Hochdruckschlauch und der Saugschlauch werden gemeinsam im Teleskopausleger geführt. Der Teleskopausleger ist an einem horizontal angeordneten Drehlager rotierbar gelagert. Dieses Drehlager weist Rollenkörper für den Hochdruckschlauch auf. Diese Rollenkörper sind kreisförmig um die Achse des Drehlagers angeordnet. Der Hochdruckschlauch liegt in einer ersten Position des Teleskopauslegers zumindest abschnittsweise an den Rollenkörpern des Drehlagers an, während der Hochdruckschlauch in einer zweiten Position des Teleskopauslegers ohne eine Berührung der Rollenkörper des Drehlagers direkt von der Schlauchhaspel in den Teleskopausleger geführt ist. Erfindungsgemäß weist das Drehlager Stützrollen für den Hochdruckschlauch auf, die um die Achse des Drehlagers angeordnet sind. Die Stützrollen sind so verfahrbar, dass diese in einer ersten Position in etwa auf der Höhe der Rollenkörper vorhanden sind, so dass der Hochdruckschlauch zwischen den Rollenkörpern und den Stützrollen geführt ist. In einer zweiten Position sind die Stützrollen dagegen oberhalb oder unterhalb der Ebene der Rollenkörper vorhanden.The vehicle according to the invention for loosening and sucking up contaminants from sewers and sludge pits has a pivotable telescopic boom which can be positioned over the opening of the sewer or sludge pit. A high-pressure hose can be wound and unwound on a hose reel. The high-pressure hose can be approximately parallel to the longitudinal axis of the vehicle out of the vehicle and into the telescopic boom. A suction hose is stored in a storage device on the vehicle so that it can be pulled in and out. The high-pressure hose and the suction hose are routed together in the telescopic boom. The telescopic boom is rotatably mounted on a horizontally arranged rotary bearing. This pivot bearing has roller bodies for the high-pressure hose. These roller bodies are arranged in a circle around the axis of the pivot bearing. In a first position of the telescopic boom, the high-pressure hose is at least partially in contact with the roller bodies of the rotary bearing, while in a second position of the telescopic boom, the high-pressure hose is guided directly from the hose reel into the telescopic boom without touching the roller bodies of the rotary bearing. According to the invention, the pivot bearing has support rollers for the high-pressure hose, which are arranged around the axis of the pivot bearing. The support rollers can be moved in such a way that in a first position they are approximately at the level of the roller bodies, so that the high-pressure hose is guided between the roller bodies and the support rollers. In a second position, on the other hand, the support rollers are present above or below the level of the roller bodies.

Mit dem erfindungsgemäßen Fahrzeug kann ein Arbeitsbereich von etwa 320 Grad durch den Teleskopausleger abgedeckt werden. Der Arbeitsbereich kann in diesem Fall sowohl den Bereich unmittelbar hinter als auch den Bereich unmittelbar vor dem Fahrzeug abdecken. Lediglich seitlich des Fahrzeugs ist ein Bereich vorhanden, der durch den Teleskopausleger nicht abgedeckt werden kann. Um auch in diesem Bereich eine Reinigung von Abwasserkanälen und Schlammgruben vornehmen zu können, muss das Kanalreinigungsfahrzeug jedoch lediglich ein Stück zurück- oder vorsetzen. Ein umständliches Rangieren des Kanalreinigungsfahrzeugs ist jedoch nicht erforderlich.With the vehicle according to the invention, a working area of approximately 320 degrees can be covered by the telescopic boom. In this case, the working area can cover both the area directly behind and the area directly in front of the vehicle. Only on the side of the vehicle is there an area that cannot be covered by the telescopic boom. In order to be able to clean sewers and sludge pits in this area as well, the sewer cleaning vehicle only has to move back or forward a little. A cumbersome maneuvering of the sewer cleaning vehicle is not necessary.

Durch die Verwendung der Stützrollen kann das Herunterrutschen oder Herausspringen des Hochdruckschlauches aus seiner Rollenbahn im Drehlager verhindert werden. Dies ermöglicht einen sicheren Betrieb des erfindungsgemäßen Fahrzeugs auch bei extremen Auslenkungen des Teleskopauslegers.By using the support rollers, the high-pressure hose can be prevented from slipping or jumping out of its roller track in the pivot bearing. This enables safe operation of the vehicle according to the invention even with extreme deflections of the telescopic boom.

Die Stützrollen können grundsätzlich über das komplette Drehlager verteilt sein und damit einen Winkelbereich von 360 Grad abdecken. Da der Hochdruckschlauch jedoch lediglich in einem Bereich von weniger als 180 Grad an den Rollenkörpern des Drehlagers anliegt, kann es ausreichend sein, die Stützrollen lediglich in diesem Bereich des Drehlagers und damit in einem Winkelbereich von etw 180 Grad vorzusehen. Dabei hat es sich als ausreichend herausgestellt, die Stützrollen in einem Abstand von jeweils etwa 30 bis 45 Grad zueinander vorzusehen, so dass insgesamt fünf Stützrollen ausreichend sind.In principle, the support rollers can be distributed over the entire pivot bearing and thus cover an angular range of 360 degrees. However, since the high-pressure hose is only in contact with the roller bodies of the pivot bearing in an area of less than 180 degrees, it may be sufficient to provide the support rollers only in this area of the pivot bearing and thus in an angular range of about 180 degrees. It has been found to be sufficient to provide the support rollers at a distance of about 30 to 45 degrees from one another, so that a total of five support rollers are sufficient.

Das Verfahren der Stützrollen von ihrer ersten in ihre zweite Position und umgekehrt kann vorzugsweise über eine Kulissenführung erfolgen. Kulissenführungen sind konstruktiv einfach umzusetzen und in der Regel wenig störungsanfällig. Die Kulissenführung kann eine Drehscheibe aufweisen, die an dem Drehlager befestigt und um die Achse des Drehlagers rotierbar ist. Darüber hinaus kann die Kulissenführung eine stationäre Führungsschiene aufweisen, die unterhalb oder oberhalb der Drehscheibe vorhanden ist. Die Stützrollen können entlang der stationären Führungsschiene verfahrbar und vertikal verschieblich an der Drehscheibe gelagert sein. Die stationäre Führungsschiene kann kreisförmig ausgebildet sein und über einen ersten Streckenabschnitt und einen zweiten Streckenabschnitt verfügen. Der Abstand der stationären Führungsschiene zu der Drehscheibe kann im Bereich des ersten Streckenanschnitts kleiner sein als im Bereich des zweiten Streckenabschnitts. Sofern sich die Stützrollen daher im Bereich des ersten Streckenabschnitts der Führungsschiene befinden, sind diese etwa auf einer Höhe mit den Rollenkörpern des Drehlagers ausgerichtet. Befinden sich die Stützrollen dagegen im Bereich des zweiten Streckenabschnitts, sind die Stützrollen nach unten oder nach oben verfahren und geben daher den Bereich des Drehlagers nach außen frei. Der zweite Streckenabschnitt kann daher insbesondere im Bereich des Einlasses des Hochdruckschlauches in das Drehlager angeordnet sein.The process of the support rollers from their first to their second position and vice versa can preferably be done via a link guide. Link guides are easy to implement in terms of design and are generally not very prone to failure. The link guide can have a turntable which is attached to the pivot bearing and can be rotated about the axis of the pivot bearing. In addition, the link guide can have a stationary guide rail that is present below or above the turntable. The support rollers can be mounted on the turntable so that they can be moved along the stationary guide rail and are vertically displaceable. The stationary guide rail can be circular and have a first section and a second section. The distance between the stationary guide rail and the turntable can be smaller in the area of the first section than in the area of the second section. If the support rollers are therefore located in the area of the first section of the guide rail, they are aligned approximately at the same height as the roller bodies of the pivot bearing. If, on the other hand, the support rollers are in the area of the second track section, the support rollers have been moved downwards or upwards and therefore release the area of the rotary bearing to the outside. The second section can therefore, in particular, in Be arranged in the pivot bearing area of the inlet of the high-pressure hose.

Vorzugsweise kann die stationäre Führungsschiene unterhalb der Drehscheibe angeordnet sein. In diesem Fall können die Stützrollen jeweils zumindest eine Fahrrolle aufweisen, durch die die Stützrollen auf der stationären Führungsschiene verfahren werden können.The stationary guide rail can preferably be arranged below the turntable. In this case, the support rollers can each have at least one driving roller, through which the support rollers can be moved on the stationary guide rail.

An der Drehscheibe können mehrere Stützhülsen befestigt sein, in denen die Stützrollen längsverschieblich gelagert sind.Several support sleeves can be attached to the turntable, in which the support rollers are mounted so that they can be displaced longitudinally.

Der Hochdruckschlauch und der Saugschlauch können innerhalb des Teleskopauslegers zumindest bereichsweise auf Rollenkörpern geführt werden. Zumindest einige dieser Rollenkörper können motorisch antreibbar ausgebildet sein.The high-pressure hose and the suction hose can be guided within the telescopic boom, at least in some areas, on roller bodies. At least some of these roller bodies can be designed to be motor-driven.

Das Drehlager des Teleskopauslegers kann eine Speichereinheit für den Saugschlauch aufweisen. Diese Speichereinheit kann vorzugsweise als Schlauchhaspel ausgeführt sein. Die Rollenkörper für den Hochdruckschlauch können insbesondere unterhalb der Speichereinheit des Saugschlauchs vorhanden sein.The pivot bearing of the telescopic boom can have a storage unit for the suction hose. This storage unit can preferably be designed as a hose reel. The roller bodies for the high-pressure hose can be present in particular below the storage unit of the suction hose.

In einer besonders vorteilhaften Ausführungsform kann der Teleskopausleger einen vorzugsweise teleskopierbar ausgebildeten Auslegerarm aufweisen, an dessen fahrzeugseitigem Ende ein Führungselement einteilig angeformt ist. Dieses Führungselement kann dann rotierbar an dem Drehlager gelagert sein. Auslegerarm und Führungselement können gemäß der Erfindung einen Winkel von etwa 100 bis 110 Grad bilden, so dass der Teleskopausleger quasi abgeknickt ausgebildet ist. Der Auslegerarm des Teleskopauslegers kann dabei ein- oder mehrfach teleskopierbar ausgebildet sein.In a particularly advantageous embodiment, the telescopic jib can have a jib arm that is preferably designed to be telescopic, and a guide element is integrally formed on the vehicle-side end of the jib arm. This guide element can then be rotatably mounted on the pivot bearing. According to the invention, the cantilever arm and the guide element can form an angle of approximately 100 to 110 degrees, so that the telescopic boom is designed in a quasi-kinked manner. The boom arm of the telescopic boom can be designed to be telescopic once or multiple times.

Diese winkelige Ausbildung ermöglicht es, den Arbeitsbereich des Kanalreinigungsfahrzeugs weiter zu vergrößern. Darüber hinaus befindet sich der Teleskopausleger in diesem Fall nicht im Sichtbereich des Fahrers, wenn der Auslegerarm parallel zur Längsrichtung des Fahrzeugs nach vorne ausgerichtet ist. Es wäre daher prinzipiell möglich, das Fahrzeug zu verfahren, auch wenn sich der Teleskopausleger vor der Fahrerkabine befindet. Dies würde die Arbeit des Fahrers eines erfindungsgemäßen Fahrzeugs erheblich erleichtern und kann darüber hinaus dafür sorgen, dass die Fahrtzeiten des Fahrzeugs zwischen zwei Reinigungsvorgängen deutlich reduziert werden können.This angled design makes it possible to further increase the working area of the sewer cleaning vehicle. In addition, the telescopic boom in this case is not in the field of vision of the driver when the cantilever arm is aligned forward parallel to the longitudinal direction of the vehicle. In principle, it would therefore be possible to move the vehicle even if the telescopic boom is in front of the driver's cab. This would make the work of the driver of a vehicle according to the invention much easier and can also ensure that the travel times of the vehicle between two cleaning processes can be significantly reduced.

In einer besonders vorteilhaften Ausführungsform kann der Hochdruckschlauch über zumindest ein Rollenpaar in den Teleskopausleger hineingeführt werden. Sofern zwei Rollenpaare vorhanden sein sollen, können diese einen trichterförmigen Einlass für den Hochdruckschlauch bilden. Der Hochdruckschlauch verläuft zwischen den beiden Rollen des zumindest einen Rollenpaares. Das zumindest eine Rollenpaar ist dabei in einer Ebene mit den Rollenkörpern des Drehlagers angeordnet. Sofern der Teleskopausleger seitlich neben dem Fahrzeug auf der Seite der Schlauchhaspel für den Hochdruckschlauch positioniert ist, kann der Hochdruckschlauch an der äußeren Rolle des Rollenpaares anliegen und direkt von der Schlauchhaspel in den Teleskopausleger geführt werden. Ist der Teleskopausleger dagegen auf der gegenüber liegenden Seite des Fahrzeugs positioniert, kann der Hochdruckschlauch an der inneren Rolle der Rollenpaares anliegen und von dieser Rolle an die Rollenkörper des Drehlagers übergeben werden. Der Hochdruckschlauch verläuft in dieser Position des Teleskopauslegers zumindest abschnittsweise um das Drehlager. Das zumindest eine Rollenpaar des Teleskopauslegers kann vorzugsweise im Übergangsbereich zwischen Auslegerarm und Führungselement und damit im Bereich des Knicks des Teleskopauslegers angeordnet sein. Auf diese Weise kann der Hochdruckschlauch direkt in den Auslegerarm des Teleskopauslegers eingeführt werden, was den Arbeitsbereich des Fahrzeugs weiter vergrößert.In a particularly advantageous embodiment, the high-pressure hose can be guided into the telescopic boom via at least one pair of rollers. If two pairs of rollers are to be present, they can form a funnel-shaped inlet for the high-pressure hose. The high-pressure hose runs between the two rollers of the at least one pair of rollers. The at least one pair of rollers is arranged in one plane with the roller bodies of the pivot bearing. If the telescopic boom is positioned to the side of the vehicle on the side of the hose reel for the high-pressure hose, the high-pressure hose can rest on the outer roller of the pair of rollers and be guided directly from the hose reel into the telescopic boom. If, on the other hand, the telescopic boom is positioned on the opposite side of the vehicle, the high-pressure hose can lie against the inner roller of the pair of rollers and be transferred from this roller to the roller body of the rotary bearing. In this position of the telescopic boom, the high-pressure hose runs at least in sections around the rotary bearing. The at least one pair of rollers of the telescopic boom can preferably be arranged in the transition area between the boom arm and the guide element and thus in the area of the bend in the telescopic boom. In this way, the high-pressure hose can be inserted directly into the boom arm of the telescopic boom, which further increases the working range of the vehicle.

Um den Hochdruckschlauch von der Schlauchhaspel in den Teleskopausleger führen zu können, muss dieser ein Stück weit nach oben aus dem Fahrzeug heraus geführt werden. Dies kann über eine Rollenführung erfolgen, über die der Hochdruckschlauch geleitet wird, damit dieser in die Ebene des Teleskopauslegers gelangt. Diese Rollenführung kann jedoch die Rotation des Teleskopauslegers behindern. Daher kann die Rollenführung in einer besonders bevorzugten Ausführungsform entlang der Längsachse des Fahrzeugs längsverschieblich gelagert sein. Durch eine solche Verschiebung würde der Hochdruckschlauch von der Schlauchhaspel unmittelbar in den Teleskopausleger geführt werden, ohne die Rollenkörper des Drehlagers zu berühren.In order to be able to guide the high-pressure hose from the hose reel into the telescopic boom, it must be guided a little way up and out of the vehicle. This can be done using a roller guide take place, via which the high-pressure hose is routed so that it reaches the level of the telescopic boom. However, this roller guide can hinder the rotation of the telescopic boom. Therefore, in a particularly preferred embodiment, the roller guide can be mounted to be longitudinally displaceable along the longitudinal axis of the vehicle. Such a shift would lead the high-pressure hose from the hose reel directly into the telescopic boom without touching the roller body of the rotary bearing.

Vorzugsweise kann die Rollenführung durch den Teleskopausleger in Richtung der Schlauchhaspel für den Hochdruckschlauch verschoben werden, so dass der Platz für eine weitere Verschwenkung des Teleskopauslegers frei ist. Dazu kann die Rollenführung eine Anlaufrolle aufweisen, durch die die Rollenführung durch den Teleskopausleger verschoben werden kann.The roller guide can preferably be displaced by the telescopic boom in the direction of the hose reel for the high-pressure hose, so that there is free space for further pivoting of the telescopic boom. For this purpose, the roller guide can have a stop roller, through which the roller guide can be displaced through the telescopic boom.

Nach ihrer Verschiebung in Längsrichtung kann die Rollenführung vorzugsweise durch eine Rückstellkraft wieder in ihre Ausgangsposition zurückgeführt werden. Bei dieser Rückstellkraft kann es sich insbesondere um eine Gaszugfeder, eine Gasdruckfeder oder einen Pneumatikzylinder handeln.After it has been displaced in the longitudinal direction, the roller guide can be returned to its starting position, preferably by a restoring force. This restoring force can in particular be a tension gas spring, a gas pressure spring or a pneumatic cylinder.

Weitere Vorteile und Merkmale der Erfindung sind den in den Ansprüchen ferner angegebenen Merkmalen sowie dem nachstehenden Ausführungsbeispiel zu entnehmen.Further advantages and features of the invention can be found in the features also specified in the claims and in the exemplary embodiment below.

KURZE BESCHREIBUNG DER ZEICHNUNGBRIEF DESCRIPTION OF THE DRAWING

Die Erfindung wird im Folgenden anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher beschrieben und erläutert. Es zeigen:

Fig. 1
eine schematische Draufsicht auf das erfindungsgemäße Fahrzeug mit angedeutetem maximalen Arbeitsbereich des Teleskopauslegers,
Fig. 2
eine schematische Seitenansicht der Haspelvorrichtung und des maximal ausgefahrenen Teleskopauslegers in seiner Position unmittelbar vor der Fahrerkabine,
Fig. 3
eine schematische Seitenansicht gemäß Fig. 2, bei der der Teleskopausleger vollständig eingefahren ist,
Fig. 4
eine Detailansicht der Haspelvorrichtung und des Drehlagers gemäß Fig. 2,
Fig. 5
eine Draufsicht auf eine Stützrolle in ihrer oberen Position,
Fig. 6
eine Seitenansicht der Stützrolle gemäß Fig. 5 in ihrer oberen Position,
Fig. 7
eine Draufsicht auf die Stützrolle gemäß Fig. 5 in ihrer unteren Position,
Fig. 8
eine Seitenansicht der Stützrolle gemäß Fig. 7 in ihrer unteren Position,
Fig. 9
eine schematische Draufsicht auf die Haspelvorrichtung mit Teleskopausleger, bei der sich der Teleskopausleger in seiner Transportstellung befindet,
Fig. 10
eine schematische Seitenansicht der Haspelvorrichtung und des Teleskopauslegers gemäß Fig. 9,
Fig. 11
eine Draufsicht gemäß Fig. 9, bei der der Teleskopausleger aus der Transportstellung um etwa 45 Grad im Uhrzeigersinn verschwenkt wurde,
Fig. 12
eine Draufsicht gemäß Fig. 9, bei der der Teleskopausleger aus der Transportstellung um etwa 90 Grad im Uhrzeigersinn in seine hintere Maximalposition links neben dem Fahrzeug verschwenkt wurde,
Fig. 13
eine Draufsicht gemäß Fig. 9, bei der der Teleskopausleger aus der Transportstellung um etwa 90 Grad im GegenUhrzeigersinn verschwenkt und dadurch rechts neben dem Fahrzeug positioniert wurde, und
Fig. 14
eine Draufsicht gemäß Fig. 9, bei der der Teleskopausleger aus der Transportstellung etwa 230 Grad im GegenUhrzeigersinn in seine vordere Maximalposition links neben dem Fahrzeug verschwenkt wurde.
The invention is described and explained in more detail below with reference to the embodiment shown in the drawing. Show it:
1
a schematic plan view of the vehicle according to the invention with an indicated maximum working range of the telescopic boom,
2
a schematic side view of the reel device and the maximum extended telescopic boom in its position directly in front of the driver's cab,
3
a schematic side view according to FIG 2 , with the telescopic boom fully retracted,
4
a detailed view of the reel device and the pivot bearing according to FIG 2 ,
figure 5
a plan view of a support roller in its upper position,
6
a side view of the support roller according to FIG figure 5 in their upper position,
7
a top view of the support roller according to FIG figure 5 in their lower position,
8
a side view of the support roller according to FIG 7 in their lower position,
9
a schematic plan view of the reel device with a telescopic boom, in which the telescopic boom is in its transport position,
10
a schematic side view of the reel device and the telescopic boom according to FIG 9 ,
11
according to a plan view 9 , in which the telescopic boom has been pivoted clockwise by about 45 degrees from the transport position,
12
according to a plan view 9 , in which the telescopic boom rotates approximately 90 degrees clockwise from the transport position was pivoted into its rear maximum position to the left of the vehicle,
13
according to a plan view 9 , in which the telescopic boom was pivoted counterclockwise from the transport position by about 90 degrees and was thus positioned to the right of the vehicle, and
14
according to a plan view 9 , in which the telescopic boom was pivoted about 230 degrees counterclockwise from the transport position to its front maximum position to the left of the vehicle.

WEGE ZUM AUSFÜHREN DER ERFINDUNGWAYS TO CARRY OUT THE INVENTION

Ein Kanalreinigungsfahrzeug 10 gemäß der Erfindung besitzt ein seiner maximalen Belastung angepasstes Fahrgestell. Hinter der Fahrerkabine 12 des Fahrzeugs 10 befindet sich in an sich bekannter Weise ein Tank. Der Tank dient als Speichervorrichtung, um abgesaugte Schlämme einlagern zu können. Zusätzlich zu dem Tank könnten auch weitere Tanks oder sonstige Behälter vorgesehen werden, beispielsweise um eine Reinigungsflüssigkeit vorrätig zu halten.A sewer cleaning vehicle 10 according to the invention has a chassis adapted to its maximum load. A tank is located behind the driver's cab 12 of the vehicle 10 in a manner known per se. The tank serves as a storage device to store extracted sludge. In addition to the tank, other tanks or other containers could also be provided, for example to keep a supply of cleaning liquid.

Oberhalb des Tanks ist ein Drehlager 20 vorhanden. An dem Drehlager 20 ist eine Speichereinheit in Form einer Schlauchhaspel 22 rotierbar befestigt. Auf der Schlauchhaspel 22 ist ein Saugschlauch 24 zumindest teilweise aufgewickelt vorhanden. Die Schlauchhaspel 22 ist um die Achse 26 des Drehlagers 20 rotierbar gelagert, so dass der Saugschlauch 24 auf die Schlauchhaspel 22 aufgewickelt oder von dieser abgewickelt werden kann. Der Saugschlauch 24 hat auf seinem fahrzeugseitigen Ende eine Verbindung mit dem Tank, in den das durch den Saugschlauch 24 angesaugte Schmutzwasser eingelagert werden soll.A rotary bearing 20 is present above the tank. A storage unit in the form of a hose reel 22 is rotatably fastened to the rotary bearing 20 . A suction hose 24 is at least partially wound up on the hose reel 22 . The hose reel 22 is rotatably mounted about the axis 26 of the pivot bearing 20 so that the suction hose 24 can be wound onto the hose reel 22 or unwound from it. At its end on the vehicle side, the suction hose 24 is connected to the tank in which the dirty water sucked in through the suction hose 24 is to be stored.

Oberhalb des Tanks ist darüber hinaus ein Teleskopausleger 30 angeordnet. Der Teleskopausleger 30 ist im vorliegenden Beispielsfall unterhalb der Schlauchhaspel 22 an dem Drehlager 20 gelagert und kann ebenfalls um die Achse 26 verschwenkt werden. Schlauchhaspel 22 und Teleskopausleger 30 können dabei so miteinander gekoppelt werden, dass bei einer Rotation der Schlauchhaspel 22 um die Achse 26 auch der Teleskopausleger 30 um die Achse 26 verschwenkt wird. Der Teleskopausleger 30 besitzt einen teleskopierbar ausgebildeten Auslegerarm 32, der an seinem fahrzeugseitigen Ende einteilig an einem Führungselement 34 angeformt ist. Auslegerarm 32 und Führungselement 34 sind winkelig zueinander angeordnet, so dass der Teleskopausleger 30 einen Knick 36 aufweist (siehe insbesondere Fig. 9). Der Auslegerarm 32 ist somit außermittig der Achse 26 des Drehlagers 20 vorhanden.A telescopic boom 30 is also arranged above the tank. The telescopic boom 30 is in the present example mounted below the hose reel 22 on the pivot bearing 20 and can also be pivoted about the axis 26. Hose reel 22 and telescopic boom 30 can be coupled to one another in such a way that when hose reel 22 rotates about axis 26 , telescopic boom 30 is also pivoted about axis 26 . The telescopic boom 30 has a telescopically designed boom arm 32 which is integrally formed on a guide element 34 at its vehicle-side end. Boom arm 32 and guide element 34 are arranged at an angle to one another, so that telescopic boom 30 has a kink 36 (see in particular 9 ). The cantilever arm 32 is thus off-centre to the axis 26 of the pivot bearing 20 .

Unterhalb der Schlauchhaspel 22 für den Saugschlauch 24 weist das Drehlager 20 mehrere Rollenkörper 40 auf, die kreisförmig um die Achse 26 des Drehlagers 20 angeordnet sind und die eine an die gerundete Oberfläche des Hochdruckschlauches 42 angepasste Oberfläche besitzen (siehe insbesondere Fig. 4). An den Rollenkörpern 40 kann ein Hochdruckschlauch 42 anliegen und abhängig von der Position des Teleskopauslegers 30 mehr oder weniger um das Drehlager 20 geführt werden. Der Hochdruckschlauch 42 ist auf einer Schlauchhaspel 44 gelagert und kann von dieser abgewickelt und in den Teleskopausleger 30 geführt werden. Die Schlauchhaspel 44 des Hochdruckschlauchs 42 ist hinter der Fahrerkabine 12 des Kanalreinigungsfahrzeugs 10 angeordnet (siehe Fig. 1). Der Hochdruckschlauch 42 wird dabei etwa in Längsrichtung 14 des Fahrzeugs 10 von der Schlauchhaspel 44 abund auf diese aufgewickelt.Below the hose reel 22 for the suction hose 24, the rotary bearing 20 has a plurality of roller bodies 40 which are arranged in a circle around the axis 26 of the rotary bearing 20 and which have a surface which is adapted to the rounded surface of the high-pressure hose 42 (see in particular 4 ). A high-pressure hose 42 can be in contact with the roller bodies 40 and guided more or less around the pivot bearing 20 depending on the position of the telescopic boom 30 . The high-pressure hose 42 is mounted on a hose reel 44 and can be unwound from it and guided into the telescopic boom 30 . The hose reel 44 of the high-pressure hose 42 is arranged behind the driver's cab 12 of the sewer cleaning vehicle 10 (see FIG 1 ). The high-pressure hose 42 is wound off and onto the hose reel 44 approximately in the longitudinal direction 14 of the vehicle 10 .

Die Schlauchhaspel 44 ist unterhalb der Ebene der Rollenkörper 40 angeordnet, so dass der Hochdruckschlauch 42 ein Stück weit nach oben aus dem Fahrzeugaufbau geführt werden muss. Der Hochdruckschlauch 42 wird dazu über eine Rollenführung 46 geleitet, die an dem Drehlager 20 befestigt ist. Durch die Rollenführung 46 kann verhindert werden, dass der Hochdruckschlauch 42 über eine Kante des Drehlagers 20 geführt wird, was zu Beschädigungen führen und das Aufund Abwickeln insbesondere im Bereich von Schlauchkupplungen erschweren würde.The hose reel 44 is arranged below the level of the roller bodies 40, so that the high-pressure hose 42 has to be guided a little way up out of the vehicle body. For this purpose, the high-pressure hose 42 is routed via a roller guide 46 which is fastened to the rotary bearing 20 . The roller guide 46 can prevent the high-pressure hose 42 from being guided over an edge of the rotary bearing 20, which could lead to damage and the opening and closing Unwinding would be particularly difficult in the area of hose couplings.

Der vordere Endbereich des Saugschlauches 24 und des Hochdruckschlauches 42 sind in dem oberen Bereich des Teleskopauslegers 30 geführt gehalten (siehe Fig. 2 und 3). Der Saugschlauch 24 und der Hochdruckschlauch 42 werden dazu übereinander geführt, wobei im vorliegenden Beispielsfall der Hochdruckschlauch 42 innerhalb des Profils des Teleskopauslegers 30 geführt wird und der Saugschlauch 24 oberhalb des Profils des Teleskopauslegers 30. Im Bereich des teleskopierbaren Auslegerarms 32 des Teleskopauslegers 30 liegt der Saugschlauch 24 an Rollenkörpern 50 an, die eine an die gerundete Oberfläche des Saugschlauches 24 angepasste Oberfläche besitzen. Vergleichbare Rollenkörper sind auch in dem bogenförmigen vorderen Bereich 52 des Auslegerarms 32 vorhanden, in dem der Saugschlauch 24 innerhalb des Profils geführt wird. Einige dieser Rollenkörper 50 können motorisch angetrieben werden, so dass der Saugschlauch 24 in dem Teleskopausleger 30 hin und her verschoben werden kann. Der Hochdruckschlauch 42 liegt unterhalb des Saugschlauches 24 in einer V-förmigen Führungsschiene 54 des Teleskopauslegers 30. Im bogenförmigen Bereich 52 des Auslegerarms 32 liegt der Hochdruckschlauch 42 auf Rollenkörpern auf, die eine an die gerundete Oberfläche des Hochdruckschlauches 42 angepasste Oberfläche besitzen. Diese Rollenkörper für den Hochdruckschlauch 42 können motorisch angetrieben werden, so dass der Hochdruckschlauch 42 in dem Teleskopausleger 30 hin und her verschoben werden kann. Die Rollenkörper für den Hochdruckschlauch 42 können dabei unabhängig von den Rollenkörpern 50 für den Saugschlauch 24 angetrieben werden, so dass Hochdruckschlauch 42 und Saugschlauch 24 unabhängig voneinander auf- und abgewickelt werden können.The front end area of the suction hose 24 and the high-pressure hose 42 are held guided in the upper area of the telescopic boom 30 (see FIG 2 and 3 ). The suction hose 24 and the high-pressure hose 42 are routed one above the other, with the high-pressure hose 42 being routed within the profile of the telescopic boom 30 in the present example and the suction hose 24 above the profile of the telescopic boom 30. The suction hose is located in the area of the telescoping boom arm 32 of the telescopic boom 30 24 on roller bodies 50, which have a surface adapted to the rounded surface of the suction hose 24. Comparable roller bodies are also present in the arcuate front area 52 of the cantilever arm 32 in which the suction hose 24 is guided within the profile. Some of these roller bodies 50 can be motor-driven, so that the suction hose 24 can be moved back and forth in the telescopic boom 30 . The high-pressure hose 42 lies below the suction hose 24 in a V-shaped guide rail 54 of the telescopic boom 30. In the arcuate area 52 of the boom arm 32, the high-pressure hose 42 rests on roller bodies, which have a surface adapted to the rounded surface of the high-pressure hose 42. These roller bodies for the high-pressure hose 42 can be motor-driven, so that the high-pressure hose 42 can be moved back and forth in the telescopic boom 30 . The roller bodies for the high-pressure hose 42 can be driven independently of the roller bodies 50 for the suction hose 24, so that the high-pressure hose 42 and the suction hose 24 can be wound up and unwound independently of one another.

Der Teleskopausleger 30 kann um eine maximale Strecke 60 ausgefahren werden. Durch Ausfahren des Teleskopauslegers 30 kann der Abstand des vorderen Endbereichs des Saugschlauches 24 und des Hochdruckschlauches von der Drehachse 26 vergrößert werden, so dass ein größerer Bereich um das Fahrzeug 10 herum mit dem vorderen Endbereich des Saugschlauches 24 und des Hochdruckschlauches 42 erreicht werden kann. Wie Fig. 1 zu entnehmen kann, kann auf diese Weise ein Arbeitsbereich 62 rund um das Fahrzeug 10 erreicht werden. Der Arbeitsbereich 62 deckt einen Winkel von etwa 320 Grad rund um das Fahrzeug 10 ab. Lediglich ein schmaler Winkelbereich von etwa 40 Grad kann in diesem Fall nicht von dem Teleskopausleger 30 erreicht werden.The telescopic boom 30 can be extended a maximum distance 60. By extending the telescopic boom 30, the distance between the front end portion of the suction hose 24 and the high-pressure hose can be increased from the axis of rotation 26, so that a larger area around the vehicle 10 can be reached with the front end portion of the suction hose 24 and the high-pressure hose 42. As 1 can be seen, a work area 62 can be reached around the vehicle 10 in this way. The work area 62 covers an angle of approximately 320 degrees around the vehicle 10 . Only a narrow angular range of about 40 degrees cannot be reached by the telescopic boom 30 in this case.

Abhängig von dem gewünschten Arbeitsbereich 62 kann der schmale Winkelbereich, der nicht von dem Teleskopausleger 30 erreicht werden kann, wie in der Zeichnung dargestellt auf der linken Fahrzeugseite oder auch auf der rechten Fahrzeugseite vorhanden sein. Dazu müsste der Teleskopausleger 30 lediglich gespiegelt werden.Depending on the desired working range 62, the narrow angular range that cannot be reached by the telescopic boom 30 can be present on the left side of the vehicle as shown in the drawing or on the right side of the vehicle. To do this, the telescopic boom 30 would only have to be mirrored.

Um zu verhindern, dass der Hochdruckschlauch 42 von dem Drehlager 20 rutscht, weist das Drehlager 20 im vorliegenden Beispielsfall insgesamt fünf Stützrollen 70 auf (siehe beispielsweise Fig. 9). Die Stützrollen 70 sind etwa halbkreisförmig um die Achse 26 des Drehlagers 20 herum angeordnet, so dass etwa alle 30 bis 45 Grad eine Stützrolle 70 angeordnet ist. Die Stützrollen 70 können mittels einer Kulissenführung 72 aus einer ersten Position 74 (siehe Fig. 5 und 6) in eine zweite Position 76 (siehe Fig. 7 und 8) hin und her verfahren werden. In der ersten Position 74 befinden sich die Stützrollen 70 auf einer Höhe mit den Rollenkörpern 40, so dass der Hochdruckschlauch 42 zwischen den Rollenkörpern 40 und den Stützrollen 70 geführt wird. Der Hochdruckschlauch 42 kann somit nicht nach außen wegspringen, so dass ein optimaler Betrieb des erfindungsgemäßen Fahrzeugs 10 möglich ist. In der zweiten Position 76 befinden sich die Stützrollen 70 in der vorliegenden Ausführungsform dagegen unterhalb der Rollenkörper 40.In order to prevent the high-pressure hose 42 from slipping off the pivot bearing 20, the pivot bearing 20 has a total of five support rollers 70 in the present example (see, for example, 9 ). The support rollers 70 are arranged approximately in a semicircle around the axis 26 of the rotary bearing 20, so that a support roller 70 is arranged approximately every 30 to 45 degrees. The support rollers 70 can be moved from a first position 74 (see Figures 5 and 6 ) to a second position 76 (see Figures 7 and 8 ) can be moved back and forth. In the first position 74, the support rollers 70 are at the same height as the roller bodies 40, so that the high-pressure hose 42 is guided between the roller bodies 40 and the support rollers 70. The high-pressure hose 42 can thus not jump out to the outside, so that an optimal operation of the vehicle 10 according to the invention is possible. In the second position 76, on the other hand, the support rollers 70 in the present embodiment are located below the roller bodies 40.

Das Verfahren der Stützrollen 70 erfolgt mittels einer Kulissenführung 72. Die Kulissenführung 72 besitzt eine Drehscheibe 80, die unterhalb der Rollenkörper 40 für den Hochdruckschlauch 42 angeordnet ist. Die Drehscheibe 80 ist an dem Drehlager 20 befestigt und kann um die Achse 26 des Drehlagers rotieren. Die Rotation der Drehscheibe 80 erfolgt dabei gemeinsam mit dem Verschwenken des Teleskopauslegers 30. Unterhalb der Drehscheibe 80 ist eine stationäre Führungsschiene 82 vorhanden. Die stationäre Führungsschiene 82 besitzt einen ersten Streckenabschnitt 84 und einen zweiten Streckenabschnitt 86. Der erste Streckenabschnitt 84 und der zweite Streckenabschnitt 86 bilden gemeinsam einen Kreisbogen. Dabei umfasst der zweite Streckenabschnitt 86 einen Winkelbereich von etwa 50 Grad. Der zweite Streckenabschnitt 86 ist im Einlassbereich des Hochdruckschlauchs 42 in das Drehlager 20 angeordnet (siehe insbesondere Fig. 9). Im Bereich des ersten Streckenabschnitts 84 ist der Abstand zwischen der stationären Führungsschiene 82 und der Drehscheibe 80 kleiner als im Bereich des zweiten Streckenabschnitts 86 (siehe Fig. 4).The support rollers 70 are moved by means of a link guide 72. The link guide 72 has a turntable 80 which is arranged below the roller body 40 for the high-pressure hose 42. The turntable 80 is attached to the pivot bearing 20 and can Rotate axis 26 of the pivot bearing. The rotation of the turntable 80 takes place together with the pivoting of the telescopic boom 30. Below the turntable 80, a stationary guide rail 82 is present. The stationary guide rail 82 has a first section 84 and a second section 86. The first section 84 and the second section 86 together form an arc of a circle. In this case, the second section 86 comprises an angular range of approximately 50 degrees. The second section 86 is arranged in the inlet area of the high-pressure hose 42 into the rotary bearing 20 (see in particular 9 ). In the area of the first section 84, the distance between the stationary guide rail 82 and the turntable 80 is smaller than in the area of the second section 86 (see FIG 4 ).

Die Stützrollen 70 besitzen jeweils eine Fahrrolle 88. Mit dieser Fahrrolle 88 liegen die Stützrollen 70 auf der Führungsschiene 82 auf und können entlang der stationären Führungsschiene 82 verfahren werden. Die Stützrollen 70 sind jeweils in einer Stützhülse 90 längsverschieblich gelagert. Die Stützhülsen 90 sind an der Drehscheibe 80 befestigt, so dass die Stützhülsen 90 und damit auch die Stützrollen 70 gemeinsam mit der Drehscheibe 80 rotierbar sind. Sofern sich die Stützrollen 70 auf dem ersten Streckenabschnitt 84 der Führungsschiene 82 befinden, sind die Stützrollen 70 in ihrer in Fig. 5 und 6 dargestellten ersten Position 74 vorhanden. Befinden sich die Stützrollen 70 dagegen im Bereich des zweiten Streckenabschnitts 86 der Führungsschiene 82, werden die Stützrollen 70 nach unten abgesenkt und sind somit in ihrer in Fig. 7 und 8 dargestellten zweiten Position 76 vorhanden.The supporting rollers 70 each have a driving roller 88. With this driving roller 88, the supporting rollers 70 rest on the guide rail 82 and can be moved along the stationary guide rail 82. The support rollers 70 are each mounted in a support sleeve 90 so as to be longitudinally displaceable. The support sleeves 90 are attached to the turntable 80 so that the support sleeves 90 and thus also the support rollers 70 can be rotated together with the turntable 80 . If the support rollers 70 are located on the first section 84 of the guide rail 82, the support rollers 70 are in their in Figures 5 and 6 shown first position 74 available. If, on the other hand, the support rollers 70 are in the region of the second section 86 of the guide rail 82, the support rollers 70 are lowered and are thus in their in Figures 7 and 8 illustrated second position 76 available.

In den Fig. 9 bis 14 sind verschiedene Positionen des Teleskopauslegers 30 dargestellt. Abhängig von der Position des Teleskopauslegers 30 ändert sich dabei die Führung des Hochdruckschlauches 42 von der Schlauchhaspel 44 in den Teleskopausleger 30.In the Figures 9 to 14 different positions of the telescopic boom 30 are shown. Depending on the position of the telescopic boom 30, the routing of the high-pressure hose 42 changes from the hose reel 44 to the telescopic boom 30.

In den Fig. 9 und 10 ist der Teleskopausleger 30 in seiner Transportstellung 100 dargestellt. Der Auslegerarm 32 des Teleskopauslegers 30 ist in diesem Fall parallel zur Längsrichtung 14 des Fahrzeugs 10 ausgerichtet; der vordere Endbereich 52 des Teleskopauslegers 30 ist entgegen der Fahrtrichtung 16 in Richtung des Fahrzeughecks ausgerichtet. Der Hochdruckschlauch 42 wird in dieser Position 100 des Teleskopauslegers 30 von der Schlauchhaspel 44 über die Rollenführung 46 in den Teleskopausleger 30 geführt, ohne dass es zu einer Berührung der Rollenkörper 40 des Drehlagers 20 käme. Dazu weist der Teleskopausleger 30 im Bereich des Knicks 36 ein Rollenpaar auf, zwischen dessen zwei Rollenkörpern 104, 106 der Hochdruckschlauch 42 verläuft.In the 9 and 10 the telescopic boom 30 is shown in its transport position 100 . The boom arm 32 of the telescopic boom 30 is in this case aligned parallel to the longitudinal direction 14 of the vehicle 10; the front end region 52 of the telescopic boom 30 is oriented counter to the direction of travel 16 towards the rear of the vehicle. In this position 100 of the telescopic boom 30 , the high-pressure hose 42 is guided from the hose reel 44 via the roller guide 46 into the telescopic boom 30 without the roller body 40 of the rotary bearing 20 coming into contact. For this purpose, the telescopic boom 30 has a pair of rollers in the area of the kink 36, between the two roller bodies 104, 106 of which the high-pressure hose 42 runs.

Aus dieser Transportstellung 100 kann der Teleskopausleger 30 ein Stück weit im Uhrzeigersinn verschwenkt werden (siehe Fig. 11). Der Teleskopausleger 30 kann dabei so weit verschwenkt werden, bis das Führungselement 34 des Teleskopauslegers 30 an eine Anlaufrolle 110 der Rollenführung 46 anstößt. Abhängig von dem gewünschten maximalen Arbeitsbereich 62 des Teleskopauslegers kann es ausreichend sein, diese Position als Endposition für den Teleskopausleger 30 zu definieren.From this transport position 100, the telescopic boom 30 can be pivoted a little clockwise (see 11 ). The telescopic boom 30 can be pivoted until the guide element 34 of the telescopic boom 30 hits a stop roller 110 of the roller guide 46 . Depending on the desired maximum working range 62 of the telescopic boom, it may be sufficient to define this position as the end position for the telescopic boom 30 .

Sofern dagegen eine weitere Rotation des Teleskopauslegers 30 im Uhrzeigersinn gewünscht ist, kann die Rollenführung 46 auf einer Schiene 112 längsverschieblich gelagert sein. In diesem Fall könnte der Teleskopausleger 30 bei einem weiteren Verschwenken im Uhrzeigersinn die Anlaufrolle 110 und damit auch die Rollenführung 46 entlang der Schiene 112 ein Stück weit in Richtung der Schlauchhaspel 44 nach vorne verschieben. Dadurch kann der Teleskopausleger 30 weiter verschwenkt werden, bis die in Fig. 12 dargestellte hintere Endposition 114 erreicht ist. In dieser hinteren Endposition 114 des Teleskopauslegers 30 ist der Auslegerarm 32 in einem Winkel von etwa 90 Grad zur Fahrzeuglängsrichtung 14 ausgerichtet.If, on the other hand, a further clockwise rotation of the telescopic boom 30 is desired, the roller guide 46 can be mounted on a rail 112 so that it can be displaced longitudinally. In this case, the telescopic boom 30 could move the contact roller 110 and thus also the roller guide 46 along the rail 112 a little in the direction of the hose reel 44 in the event of further pivoting in the clockwise direction. As a result, the telescopic boom 30 can be pivoted further until the 12 illustrated rear end position 114 is reached. In this rear end position 114 of the telescopic boom 30, the boom arm 32 is aligned at an angle of approximately 90 degrees to the longitudinal direction 14 of the vehicle.

Auch in der in Fig. 11 dargestellten Position 116 sowie in der hinteren Endposition 114 des Teleskopauslegers 30 findet keine Berührung des Hochdruckschlauches 42 mit den Rollenkörpern 40 des Drehlagers 20 statt.Also in the 11 shown position 116 and in the rear end position 114 of the telescopic boom 30 there is no contact with the High-pressure hose 42 with the roller bodies 40 of the pivot bearing 20 instead.

Der Teleskopausleger 30 kann darüber hinaus aus der Transportstellung 100 gemäß Fig. 9 und 10 im Gegen-Uhrzeigersinn verschwenkt werden, so dass die in Fig. 13 und 14 dargestellten Positionen 118, 120 erreicht werden können. In der in Fig. 13 dargestellten Position 118 des Teleskopauslegers ist der Auslegerarm 32 in einem Winkel von etwa 90 Grad zur Fahrzeuglängsrichtung 14 ausgerichtet, befindet sich jedoch auf der anderen Fahrzeugseite als bei der in Fig. 12 dargestellten hinteren Endposition 114. In dieser Position 118 liegt der Hochdruckschlauch 42 im Teleskopausleger an der Innenseite des Rollenkörpers 104 an. Darüber hinaus liegt der Hochdruckschlauch 42 auch an zwei weiteren Rollenkörpern 122, 124, die im Bereich des Führungselements 34 des Teleskopauslegers 30 angeordnet sind, an. Der Hochdruckschlauch 42 verläuft ein Stück weit um das Drehlager 20 des Fahrzeugs 10 und liegt an einigen Rollenkörpern 40 des Drehlagers 20 an. Entsprechend Fig. 13 befinden sich insgesamt zwei Stützrollen 70 in dem zweiten Streckenabschnitt 86 der stationären Führungsschiene 82 und sind somit abgesenkt vorhanden. Dadurch kann der Hochdruckschlauch 41 über die Rollenführung 46 in das Drehlager 20 geführt werden.The telescopic boom 30 can also be moved from the transport position 100 according to FIG 9 and 10 be pivoted counterclockwise so that the in 13 and 14 positions 118, 120 shown can be reached. in the in 13 In position 118 of the telescopic boom shown, boom arm 32 is aligned at an angle of approximately 90 degrees to vehicle longitudinal direction 14, but is located on the other side of the vehicle than in FIG 12 illustrated rear end position 114. In this position 118, the high-pressure hose 42 rests on the inside of the roller body 104 in the telescopic boom. In addition, the high-pressure hose 42 also rests against two other roller bodies 122 , 124 which are arranged in the area of the guide element 34 of the telescopic boom 30 . The high-pressure hose 42 runs a little way around the pivot bearing 20 of the vehicle 10 and is in contact with some roller bodies 40 of the pivot bearing 20 . Corresponding 13 there are a total of two support rollers 70 in the second section 86 of the stationary guide rail 82 and are therefore lowered. As a result, the high-pressure hose 41 can be guided into the rotary bearing 20 via the roller guide 46 .

Bei einer weiteren Rotation des Teleskopauslegers 30 schlingt sich der Hochdruckschlauch 42 immer weiter um das Drehlager 20, so dass mehr und mehr Rollenkörper 40 des Drehlagers 20 berührt werden. So liegt der Hochdruckschlauch 42 in seiner in Fig. 14 dargestellten vorderen Endposition 120 an der Hälfte der Rollenkörper 40 des Drehlagers 20 an. Eine weitere Rotation des Teleskopauslegers 30 im Gegen-Uhrzeigersinn wird dadurch verhindert, dass der Hochdruckschlauch 42 von der Schlauchhaspel 44 nach oben in die Ebene des Teleskopauslegers 30 geführt werden muss.With a further rotation of the telescopic boom 30, the high-pressure hose 42 loops further and further around the pivot bearing 20, so that more and more roller bodies 40 of the pivot bearing 20 are touched. So the high-pressure hose 42 lies in its in 14 illustrated front end position 120 on half of the roller body 40 of the pivot bearing 20. A further counter-clockwise rotation of the telescopic boom 30 is prevented by the fact that the high-pressure hose 42 has to be guided upwards from the hose reel 44 into the plane of the telescopic boom 30 .

Claims (14)

  1. Vehicle (10) for loosening and sucking up contaminants from wastewater sewers and sludge pits,
    - having a pivotable telescopic boom (30) which can be positioned over the opening of the wastewater sewer or the sludge pit,
    - having a high-pressure hose (42) which is mounted on a hose reel (44) such that it can be wound up and unwound and which can be guided out of vehicle (10), and can be guided into the telescopic boom (30), approximately parallel to the longitudinal axis (14) of the vehicle (10),
    - having a suction hose (24) which can be pulled into a storage unit (22) on the vehicle (10) and can be pulled out of said storage unit,
    - wherein high-pressure hose (42) and suction hose (24) can be guided together in the telescopic boom (30),
    - wherein the telescopic boom (30) is fastened rotatably to a horizontally arranged rotary bearing (20),
    - wherein the rotary bearing (20) has roller bodies (40) for the high-pressure hose (42), which are arranged in a circular manner around the axis (26) of the rotary bearing (20),
    - wherein the high-pressure hose (42), in a first position (118, 120) of the telescopic boom (30), at least sectionally bears against the roller bodies (40) of the rotary bearing (20) and, in a second position (110, 114, 116) of the telescopic boom (30), is guided from the hose reel (44) into the telescopic boom (30) without being in contact with the roller bodies (40) of the rotary bearing (20),
    - characterized in that
    - the rotary bearing (20) has support rollers (70) for the high-pressure hose (42), which are arranged around the axis (26) of the rotary bearing (26),
    - the support rollers (70) can be moved in such a way that, in a first position (74), they are present approximately at the height of the roller bodies (40), so that the high-pressure hose (42) is guided between the roller bodies (40) and the support rollers (70), and, in a second position (76), they are present above or below the roller bodies (40).
  2. Vehicle according to Claim 1,
    - characterized in that
    - the support rollers (70) are arranged over an angle range of approximately 180 degrees.
  3. Vehicle according to Claim 1 or 2,
    - characterized in that
    - the support rollers (70) have a spacing of in each case approximately 30 to 45 degrees to one another.
  4. Vehicle according to one of the preceding claims,
    - characterized in that
    - a slotted guide (72) via which the support rollers (70) can be moved from their first position (74) into their second position (76) and back into their first position (74) is present.
  5. Vehicle according to Claim 4,
    - characterized in that
    - the slotted guide (72) has a rotary disc (80) which is fastened to the rotary bearing (20) and which can be rotated about the axis (26) of the rotary bearing (20),
    - the slotted guide (72) has a stationary guide rail (82) which is present below or above the rotary disc (80),
    - the support rollers (70) can be moved along the stationary guide rail (82),
    - the support rollers (70) are mounted on the rotary disc (80) so as to be vertically displaceable.
  6. Vehicle according to Claim 5,
    - characterized in that
    - the stationary guide rail (82) is of circular form,
    - the stationary guide rail (82) has a first path section (84) and a second path section (86),
    - the spacing of the stationary guide rail (82) to the rotary disc (80) is smaller in the region of the first path section (84) than in the region of the second path section (86).
  7. Vehicle according to Claim 6,
    - characterized in that
    - the second path section (86) of the stationary guide rail (82) is arranged in the region of the entry of the high-pressure hose (42) into the rotary bearing (20).
  8. Vehicle according to one of Claims 5 to 7,
    - characterized in that
    - the stationary guide rail (82) is arranged below the rotary disc (80).
  9. Vehicle according to Claim 8,
    - characterized in that
    - the support rollers (70) each have at least one running roller (88),
    - the support rollers (70) can be moved by way of their running rollers (88) on the stationary guide rail (82).
  10. Vehicle according to one of Claims 5 to 9,
    - characterized in that
    - multiple support sleeves (90) are fastened to the rotary disc (80),
    - the support rollers (70) are mounted in the support sleeves (90) of the rotary disc (80) so as to be longitudinally movable.
  11. Vehicle according to one of the preceding claims,
    - characterized in that
    - the high-pressure hose (42) can be guided via a roller guide (46) from the hose reel (44) into the telescopic boom (30),
    - the roller guide (46) is mounted so as to be longitudinally displaceable along the longitudinal axis (14) of the vehicle (10).
  12. Vehicle according to Claim 11,
    - characterized in that
    - the roller guide (46) can be displaced by the telescopic boom (30) in the direction of the hose reel (44) for the high-pressure hose (42).
  13. Vehicle according to Claim 12,
    - characterized in that
    - the roller guide (46) has a run-on roller (110) by way of which the roller guide (46) can be displaced by the telescopic boom (30).
  14. Vehicle according to one of Claims 11 to 13,
    - characterized in that
    - the roller guide (46) can be guided back into its starting position by a restoring force, in particular via a gas tension spring or a pneumatic cylinder.
EP20194995.5A 2020-09-08 2020-09-08 Channel cleaning vehicle Active EP3964657B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20194995.5A EP3964657B1 (en) 2020-09-08 2020-09-08 Channel cleaning vehicle
DK20194995.5T DK3964657T3 (en) 2020-09-08 2020-09-08 Sewer cleaning vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20194995.5A EP3964657B1 (en) 2020-09-08 2020-09-08 Channel cleaning vehicle

Publications (2)

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EP3964657A1 EP3964657A1 (en) 2022-03-09
EP3964657B1 true EP3964657B1 (en) 2022-11-16

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EP20194995.5A Active EP3964657B1 (en) 2020-09-08 2020-09-08 Channel cleaning vehicle

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EP (1) EP3964657B1 (en)
DK (1) DK3964657T3 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698696B1 (en) * 1994-07-11 1998-01-14 Peter Assmann Sewer cleaning vehicle
EP2884017B1 (en) * 2013-12-12 2018-07-04 Müller Umwelttechnik GmbH & Co. KG Device for guiding a suction hose and at least one flushing hose

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202016002943U1 (en) 2016-05-09 2016-06-10 Frank Assmann Sewer cleaning vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698696B1 (en) * 1994-07-11 1998-01-14 Peter Assmann Sewer cleaning vehicle
EP2884017B1 (en) * 2013-12-12 2018-07-04 Müller Umwelttechnik GmbH & Co. KG Device for guiding a suction hose and at least one flushing hose

Also Published As

Publication number Publication date
DK3964657T3 (en) 2023-02-06
EP3964657A1 (en) 2022-03-09

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