DE8903133U1 - Sludge suction vehicle - Google Patents

Abstract

The slurry system vehicle has a storage surface (18) for the hose above the slurry tank (14), and a slewing and derricking telescopic hose boom. Driving rollers extend and retract the hose, which slides over the storage surface. The latter is fixed to the tank, and a slewing ring (34) is mounted on the top of the latter, clear of the surface and on a vertical axis (50) for the boom (44), which derricks on an axis (72) parallel to the surface. First driving rollers (110) for the hose (30) are mounted between the ring and the surface, and second ones (106) at the boom, so that there are rollers in front of and behind the two axes (50,72).

Description

ASSM-03gDE March 13, 1989

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DESCRIPTION Assmann, Peter Skid-mounted suction vehicle TECHNICAL AREA The invention relates to a foam suction vehicle with a

Hose storage above the sludge tank, a telescopic boom.·· for a* "sygschi also, whereby the telescopic boom is pivoted around a plane parallel to the storage plane of the hose storage and additionally vertical to it, as well as with a drive unit with drive rollers for retracting the hose onto or extending the hose from the hose holder, whereby the hose moves on the hose holder during its retraction or extension movement.

Such a sludge suction vehicle is a waste disposal vehicle, where the waste consists of muddy deposits that are present in underground sewers or similar other channels or containers. The waste container into which the suction hose opens can be evacuated. so that the sludge is sucked into the container through the suction hose.

STATE OF THE ART

Such a sludge suction device is known from the German utility model 88 07 777. In the front area of the vehicle, the sludge container has a dome on which the hose support extending above the sludge container is supported off-center and rotated around a vertical axis. is pivotally mounted. A telescopic boom that guides the suction hose is also pivotably mounted on the hose support. The telescopic boom is tubular, with the suction hose also being located inside the two

ASSM-03gDE March 13, 1989

pipes. Although the telescopic boom is attached to the dome in the area of the dome and thus close to the vertical axis of rotation for the sludge deposit, this suction hose and bearing and guide construction is very susceptible to vibrations due to its off-centre mounting in relation to the swivel axis of the hose deposit. When swivelling the telescopic boom in a row to the side of the sludge suction vehicle, there must be sufficient free space practically along the entire vehicle, since the telescopic boom is present in a very large area along the vehicle.

DESCRIPTION OF THE INVENTION

Based on this previously known state of the art, the invention is based on the object of specifying a sludge suction vehicle of the type mentioned at the beginning, which does not have the disadvantages known from the state of the art and which can also be used optimally in confined local conditions.

This invention is defined by the features of the main claim. In the sludge suction vehicle of the type mentioned at the beginning, it is accordingly characterized in that the hose storage is firmly attached to the sludge container, that a slewing ring is provided outside the vehicle area covered by the hose storage above the sludge container, which can be pivoted about an axis perpendicular to the storage plane and on which the telescopic boom is pivotably mounted about an axis parallel to the storage plane. Furthermore, there are first drive rollers in the area between the slewing ring and the hose storage and second drive rollers in the area of the telescopic boom for extending and retracting the hose. These drive rollers are therefore located in front of and behind the sludge suction area with the locations of the drive rollers and the

_oc with in front of and behind the locations of the two swivel axes. When swiveling the telescopic boom sideways, the fixed arrangement of the hose storage means that the desired b-iwegt

ASSM-O3gOE

March 13, 1989

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that the telescopic boom can be made relatively short, since it is not located in the front, but in the rear of the vehicle. The storage of the telescopic boom in the rear of the vehicle also means that the clearance required for swiveling ^only needs to be available in the rear of the vehicle and not in the other side areas of the ^vehicle . Due to the locally separate roller drives for the

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When the telescopic boom is swiveled, the bent hose area is "framed" on both sides by drive rollers, which makes this bent hose guide possible. The two drive rollers for the hose also ensure that the hose in its ^bent area rotates tactilely along the arc taken in front of it when entering and exiting and rvirht out of this its respective arc or otherwise bends.

It has been found to be advantageous to arrange the slewing ring off-center in the rear area of the vehicle relative to the longitudinal axis of the vehicle. The location at which the

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The swivel ring can be arranged on opposite sides of the vehicle, meaning that practically the entire width of the vehicle is available as a bend area for the hose on the sludge deposit. This makes it easy to achieve a desirable large radius of curvature for the hose on the deposit.

In order to keep the friction losses as low as possible when moving the hose on the hose support, thereby making it easier to move the hose in and out, according to a very important feature of the invention, several roller-shaped roller bodies are mounted on the hose support. per on which the hose rests in the storage area. The axes of these tube bodies lie in one plane and are aligned parallel to each other in such a way that when the hose is extended and retracted, it rests on

ASSM-03gDE 13, Mar7 1989

-4-ujn rolls along.

According to a further feature of the invention, a first piston-cylinder unit is provided for pivoting the telescopic boom, the cylinders of which are attached to the slewing ring and the pistons to the telescopic boom, and a second piston-cylinder unit is provided for adjusting the length of the telescopic boom, the cylinders of which are attached to the non-required

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tung movable Tf 1 eskoptei1 is attached.

It has also proven to be sufficient to design the telescopic parts in such a way that they essentially only surround the hose in a shell or ring shape in a partial area in the longitudinal direction of the hose. A hose guide bend is attached to the free end of the movable telescopic part. Rollers for guiding the hose can be attached to this hose guide bend.

Due to the inventive design, it is possible to make the rirehiiran» pivotable by &ogr;tijj ISO up to 220 degrees and&trade; ssins vertical" drsftach e and still easily insert the relatively thick suction hose in a relatively tight space to bend accordingly.

Further advantages and features of the invention can be found in the further claims and the following embodiment.

SHORT DESCRIPTION OF THE DRAWING

The invention is described and explained in more detail below with reference to the embodiment shown in the drawing.

ASSM-MgDE March 13, 198&Pgr;

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Fig. 1 is a side view of the sludge suction vehicle according to the invention and

Fin. 2 a partial plan view of the sludge-OS suction vehicle according to Fig. 1.

WAYS OF IMPLEMENTING THE INVENTION

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In the area above the driver's cab 12 and the front upper area of the sludge tank 14, a hose connection The hose assembly 18 is provided, which in this area extends over practically the full width of the sludge suction vehicle 10. The hose ^assembly 18 consists essentially of a circumferential frame 20, which is formed approximately in the form of a grid by means of transverse stiffeners 22 and longitudinal stiffeners 24. In the

2C Longitudinal axis 26 of the mud suction vehicle in vertical direction, i.e. in transverse direction, are between the longitudinal projections

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A suction hose 30 is supported on its rollers 28 in the area of the hose storage 18. One end of this suction hose 30 opens into a nozzle 32, which opens into the sludge container 14 in the off-center area (bottom in Fig. 2), outside the hose storage 18.

In the rear area of the vehicle 10, in the off-center side area opposite the nozzle 32, there is a slewing ring 34 above the sludge container 14. A bearing 40 having two fork arms 36, 38 and a telescopic boom 44 projecting beyond the rear 42 of the vehicle 10 are connected to this slewing ring. The fork arms 36, 38 each carry a roller 46, 48 that can rotate about a vertical axis in the area of their free ends, each of which is designed in such a way that the hose 30 can be guided along them at the side, between the fork arms 36, 38.

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March 13, 1989

The fork arms 36, 38 are firmly attached to the slewing ring 34. When the slewing ring 34 pivots about its vertical pivot axis 50, the bearing 40 also pivots in the same way.

Also in the area of the rotating ring 34 and the ^bearing 40 there are rollers 52, 54, 56 which function in the same way as the roller-shaped rollers 28 and on which the hose 30 can rest. In the area of the bearing 40 there are also two rollers 60, 62 on the side of the hose, opposite each other, between which the hose 30 is guided.

Behind the location of the lower roller 56 and the side rollers 60, 6, viewed in the direction of the telescopic boom, the telescopic boom 44 is hinged to the bearing '50 and thus to the slewing ring 34. It can thus be swiveled in height around the axis 72 present there, which is indicated by the arrow 74. This swivel axis 72 is also the axis of rotation of an upper roller 75. At the end of the telescopic boom 44 facing the axis 72, a lower roller 71 is present on the same so that the suction hose is always enclosed between these rollers 75, 71 from above and below, regardless of how the telescopic boom is swiveled in height; when the telescopic boom 44 is swiveled up, the lower roller 71 also swivels accordingly.

The movement of the telescopic boom 44 upwards and downwards, i.e. in the direction 74, is carried out by cylinder-piston units located on the sides of the boom. The cylinder 78 of each of these two cylinder-piston units is attached to the bearing 40 in the area of the axis of rotation 72, while the piston 80 is attached to the non-extendable telescopic part 82 of the telescopic boom 44. The telescopic part 82 essentially consists of cheeks 34 which laterally delimit the hose 30 and which are connected to one another by lower roller bodies 86. The hose 30 rests on these roller bodies 86. The cheeks 84 each have lateral guides.

ASSH-03gDE March 13, 1989

88, which are bush-shaped. A guide rod 90 is mounted in these guides 88 so that it can move in the longitudinal direction of the telescopic boom. A telescopic part 92 is attached to the front end of the guide rod 90. This Telescopic part 92 is mounted so that it can move back and forth in the direction of arrow 98 by means of a piston 94, which can move in the direction of arrow 98 within a cylinder 96. A guide arch 100 for the hose 30 is attached to the telescopic part 92, which is provided with support rollers 102 for the

Hose 30 is provided.

In the area of the non-extendable telescopic part 82 there is a pair of rollers 104, 106 which rests against the suction hose 30 from below and above. These rollers 104, 106 are

Ib driven by a hydraulic motor 108 so that the suction hose 30 can be extended and retracted. In addition to these drive rollers 104, 106, a block of four drive rollers 110 is present in the area between the turntable 34 and the hose support 18, which are attached in pairs to the side of the Hose 30 and can be placed as tightly as desired against the hose to achieve an optimum contact pressure using a fine adjustment device (not shown in detail). When the hose 30 is extended and retracted, the drive rollers 110 and the drive rollers 104, 106 are thus equally driven in a timely manner so that the hose 30 is framed in the longitudinal direction in the area of its horizontal and/or vertical bend by the drive device. The hose can therefore not bulge or otherwise come out of the area between its drive rollers 104, 106 and drive rollers 110. The lateral guide in this horizontal and/or vertical bending area of the hose 30 is supported by the rollers 46, 48 located at the ends of the fork arms 36, 38. Within the horizontal area between these rollers 46, 48, the hose 30 can bend Hch when swiveling the telescope out of the holder 44 horizontally.

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13 March 1989 : :.:. · ' ·. : · : : ··:

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If the suction hose 30 is to be pulled more or less slightly away from the respective suction area, the drive rollers 104, 106 and 110 do not have to be driven and the suction hose thus retracted a little, but the telescopic boom 44 can be raised accordingly. The suction hose 30 therefore does not move relative to its drive rollers, so that wear on the surface of the suction hose caused by the driving of the drive rollers can be avoided. A A suction hose stuck in a sewer or similar can therefore only be moved in the sewer by rocking the telescopic boom up and down. It has been shown that this type of movement of a suction hose is very frequently occurs during a suction process and that the resulting wear of the suction hose is correspondingly 1intensi &ngr; 1st.

The motor power required to drive the rollers 104, 106, 110 can be designed to be relatively small, since the hose moves over the rollers 28 when it is moved on the hose support 18 and as a result the friction forces that otherwise occur during movement between the hose and the hose support surface are extremely small.

Claims (1)

-1-CLAIMS 01) Sludge suction vehicle with - a hose rack above the sludge tank, - a telescopic boom for the suction hose , which can be swivelled in a plane parallel to the suction hose storage plane and in a vertical plane, - a drive unit with drive rollers to pull the hose onto or extend the hose from the hose support, whereby the hose moves on the hose support during its inward or outward movement, characterized in that - the hose holder (18) is firmly attached to the sludge container (14) _v - a rotating ring (34) is provided outside the vehicle area covered by the hose rack (18) above the sludge container (14), -- which can be pivoted about an axis (50) perpendicular to the storage plane. -- on which the telescopic boom (44) is pivotably mounted about an axis (72) parallel to the storage plane, - first drive rollers (110) for the hose (30) in the area between the turntable (34) and the hose holder (18) and second drive rollers (104, 106) for the hose (30) 1m area of the telescopic boom (44) each rest against the hose (30), so that in front of and behind the hose area with the locations of the drive rollers (104, 106, 110) and therefore in front of and behind the locations of the two pivot axes (50, 72) drive rollers are present. 02) Vehicle according to claim 1, characterized in that the hose storage (18) is located in the front area of the vehicle facing the driver's cab (12) of the vehicle (10) and the slewing ring (34) with the telescopic boom is located in the rear area of the vehicle. -2- &idigr; ASSM-03gDE P March 13, 1989 -2- 03) Vehicle according to claim 2, characterized in that the slewing ring (34) relative to the longitudinal axis of the vehicle is located off-center in the rear area of the vehicle. 05 04) Vehicle according to claim !, characterized in that the hose support (18) has several roller-shaped roller bodies (28) on which the hose (30) can be supported in the region of the support (18). 05) Vehicle according to claim 4, characterized in that the axes of the roller bodies (28) lie in one plane and are aligned parallel to one another. 06) Vehicle according to claim 1, characterized in that - a first piston-cylinder unit for pivoting the telescopic boom (44), whose cylinders (78) are attached to the slewing ring (34) and whose pistons (80) are attached to the telescopic boom (44), and - a second piston-cylinder unit for adjusting the length of the telescopic boom (44) is provided, the cylinder of which (96) is attached to the extendible telescopic part (84) and its piston (94) is attached to the telescopic part (92) which can be moved in the hose direction (98). 07) Vehicle according to claim 6, characterized in that the telescopic parts (84, 92) of the hose (30) are designed in such a way that they essentially only surround the hose in a partial region along its longitudinal extension in a manner approximately like a shell or ring. 35 ASSM-03gDE
13 Mar/ 1989 -3- 08) Vehicle according to claim 7, characterized in that a hose guide bend (100) is fastened to the free end of the movable telescope part (92). 09) Vehicle according to claim 8, characterized in that rollers (102) for supporting the hose are attached to the hose guide arch (100). 10) Vehicle according to claim 1, characterized in that the rotating ring (34) can be pivoted by approximately 180 to 220 degrees about its vertical axis of rotation (50). 11) Vehicle according to claim 1, characterized in that the telescopic boom (44) can be pivoted upwards by a maximum of approximately 30 degrees from a plane parallel to the storage plane and passing through its pivot axis (72). 12) Vehicle according to one of claims 1 to 11, characterized in that the hose (30) can be extended and retracted in any position of the turntable (34) and the telescopic boom (44).