EP3301223A1 - Device for reconditioning and profiling damaged water bound coverings - Google Patents

Abstract

A device for rehabilitating and profiling damaged water-bound way cover, which is mountable to a carrier vehicle, with a rotatable in opposite directions to the direction of travel of the carrier vehicle roller 1, on the outer circumference driver projections are mounted, which are suitable for resting on a pavement, scrape route material. A leveling device 9 is connected in the direction of travel behind the roller 1 such that it is hydraulically raised and lowered relative to the roller 1, wherein the leveling device 9 can be pressed with an adjustable pressure against the ground cover to the weight with which the roller 1 on the The cover rests to change, whereby the removal rate of the roller is adjustable.

Description

The invention relates to a device for rehabilitating and profiling damaged water-bound way cover, which is mountable to a carrier vehicle.

Water-based coverings generally consist of a mixture of natural stone material of different grain sizes, ranging from coarse gravel to fine sand or silt. This mixture makes water-bound road surfaces permeable to water, so that a bottom seal is avoided. Usually, such coverings have a specific profile. In most cases it is a roof profile, where the water can drain into a moat left and right, or the whole way hangs to one side, so that the water can run off to this side. By driving on the road with vehicles, the material then moves to the outsides of the path, which is supported by precipitation. Over time, ruts form to prevent the water from draining outwards instead of running along the ruts. As a result, the flow rate increases with a corresponding gradient, which further increases the removal of path material. This can go so far that the pavement with normal passenger cars is no longer passable.

The present invention has for its object to provide a device with which such damage can be effectively eliminated.

This object is achieved by the features of claim 1.

Advantageous embodiments of the invention are characterized in the subclaims.

The invention provides that the device has a roller rotatable in the opposite direction to the direction of travel of the carrier vehicle, on the outer circumference of the driver projections are mounted, scrape off the path material when resting on a pavement. The driver projections are preferably strips which extend over at least part of the length of the roller, it being preferred that they extend over the entire length.

The roll is preferably made of a steel tube which may have an outer diameter of about 350 mm, without the invention being limited thereto. On the circumference of the steel tube 15 to 20, preferably 17 strips can be welded continuously made of a wear steel, wherein on the front edge of each bar a bead can be mounted from a wear-resistant welding wire. As a result, on the one hand protects the roller from wear and on the other hand increases the removal of path material.

Alternatively, the strips can be screwed on, plugged or clamped and contain carbide or diamond hard materials. The strips can also have a suitable profile.

The roller is preferably driven by the carrier vehicle, which has a shaft output, which is connected via a gear to the roller.

The counter-rotating to the direction of travel scrapes away road material and pushes the material in front of him, which fills all the cavities between the cover and the roller, so that again creates a flat road surface.

In more detail, the invention provides that the roller is mounted in at least one frame, which is articulated via a linkage to a rigid support or a base plate, which is fastened to the carrier vehicle. It is preferred that the device is attached to the rear of a tractor, preferably on a mast of the tractor. However, the device can also be mounted between the axles of a carrier vehicle or at the front thereof, so that the device can also be combined with a truck, Unimog or similar vehicle.

It is proposed with great advantage that the at least one frame in which the roller is mounted, in both directions about a central vertical axis is pivotable, so that the roller is arranged at an angle to the transverse direction of the path. The roller can be adjusted in this way in a horizontal plane by up to 35 °, preferably 29 °, in both directions. This makes it possible to scrape away material from one or the other edge region of the pavement and lead to the middle of the way, which contributes to the fact that over the entire width of the pavement all cavities between the pavement and the roller can be filled.

In a further advantageous embodiment of the invention it is proposed that the at least one frame with the roller is pivotable in both directions about a central horizontal axis, so that the roller receives a lateral inclination relative to the horizontal. This lateral inclination can be in both directions up to an angle of 20 °, preferably 10 °. This makes it possible to selectively remove material from the lateral edges and, preferably combined with the above-mentioned lateral pivoting, to be applied in the region of the middle of the way, whereby the path can obtain the desired profile, for example a roof-shaped profile.

For pivoting the roller in the horizontal and / or vertical direction may be provided between the base plate and the at least one frame substantially horizontal and vertical pairs of piston / cylinder units, which are arranged between the frame and the base plate. These are preferably each two hydraulic cylinders for each of the three Movements of the device, ie for the two above-mentioned pivoting movements and a lifting movement described below.

It is also proposed with great advantage that a leveling device in the direction of travel behind the roller can be connected to the frame in such a way that the leveling device is pivotable together with the frame in the horizontal and the vertical plane. In this case, however, the leveling device is preferably hydraulically liftable and lowerable relative to the roller.

The leveling device is preferably a dozer blade. The dozer blade expediently has a flat bearing surface.

Without the leveling device, the roller would rest on the pavement with the entire weight of the device, which would have the disadvantage that too much material would be removed in the case of loose pavements and that generally a very high driving torque of the roller would be required. This is avoided by the leveling device, especially if this presses with a continuously adjustable pressure on the ground and thus reduces the weight with which the roller rests on the path. The infinitely adjustable pressure can in turn be applied hydraulically. With this design, the removal rate of the roller can be adjusted continuously via a hydraulic pressure control valve, wherein in addition the material distributed by the roller is smoothed and recompressed by the preferred planing blade.

The hydraulic adjustability of the height of the leveling device also allows the scraper roll to be lifted from the ground and the entire weight of the device to be applied to the ground via the leveler. This can be used to produce a clean, smooth road surface. If the resulting compaction is too low, a plate compactor can be mounted on the front of the host vehicle. The leveling device can be formed in an alternative embodiment by a freely rotatable roller.

If the device is not to be used, it can simply be lifted with the mast of the carrier vehicle and brought into a middle position in which the carrier vehicle can be driven normally on a road.

• verwachsenes Feinmaterial vom Wegrand, das durch Wurzeln fast schon verfilzt ist, wird sauber aufgemischt und mit grobem Wegematerial sauber vermischt;
• generell gute Vermischung des abgetragenen Materials und gute Einbettung von größeren Steinen in die Wegedecke;
• durch den großen Durchmesser der Walze entsteht ein relativ flacher Einlaufwinkel, wodurch die Walze über größere Steine leicht hinweg gleiten kann, anstatt sie auszureißen;
• größere Steine oder Felsköpfe, die in die Wegdecke hineinragen, werden beim Übergleiten der Walze immer etwas abgeschürft oder sie zerbröckeln. Dadurch wird der Weg natürlich immer feiner und störende Felsköpfe verschwinden mit der Zeit ganz von der Fahrbahnoberfläche;
• da der Seitenwinkel und die Neigung nur am Beginn eingestellt werden müssen und sich die Höhe über die Schwimmstellung des Trägerfahrzeugs und die gleitende Walze regelt, kann relativ schnell und ohne nachzusteuern gefahren werden;
• das nötige Drehmoment für den Betrieb der Maschine ist relativ gering, so kann die Maschine bereits mit 90 PS Traktoren betrieben werden;
• da die Abtragsleistung der Maschine über mehrere Parameter wie dem Anpressdruck der Walze, Drehzahl Walze und der Fahrgeschwindigkeit von einer relativ kleinen bis hin zu einer großen Abtrgsleistung verstellt werden kann, ist es möglich, die Maschine bei vielen unterschiedlichen Wegezuständen wirtschaftlich einzusetzen;
• da bei geringen Schäden an der Wegedecke bereits eine Überfahrt pro Richtung ausreichend ist, ist der Wirkungsgrad hoch und der Kraftstoffverbrauch gering.

The device according to the invention brings many advantages:

• fused fine material from the roadside, which is almost matted by roots, is mixed clean and mixed clean with coarse path material;
• generally good mixing of the removed material and good embedding of larger stones in the road surface;
• the large diameter of the roll gives rise to a relatively shallow entry angle which allows the roll to easily slide over larger stones rather than tearing it out;
• larger stones or rocky heads, which protrude into the cover, are always slightly abraded or crumble as the roller slides over. As a result, the path becomes finer, of course, and disturbing rocks gradually disappear over time from the road surface.
• since the side angle and the inclination must be set only at the beginning and the height on the floating position of the host vehicle and the sliding roller controls, can be driven relatively quickly and without Nachzusteuern;
• the necessary torque for the operation of the machine is relatively low, so the machine can already be operated with 90 hp tractors;
• Since the removal rate of the machine can be adjusted over a number of parameters such as the contact pressure of the roller, speed roller and the driving speed of a relatively small to a large Abtrgsleistung, it is possible to use the machine economically in many different travel conditions;
• Since only one crossing per direction is sufficient for minor damage to the road surface, the efficiency is high and fuel consumption low.

Figur 1

einen Vertikalschnitt durch eine Walze;

Figur 2

eine Aufsicht auf die Vorrichtung, nach rechts und nach links verschwenkt;

Figur 3

eine Vorderansicht der Vorrichtung, im Gegenuhrzeigersinn und im Uhrzeigersinn verschwenkt;

Figuren 4a bis 4c

eine Seitenansicht der Vorrichtung mit drei verschiedenen Positionen eines Planierschildes;

Figur 5

den Antriebsstrang der Walze;

Figur 6

ein Zugfahrzeug mit daran befestigter Vorrichtung in einer Aufsicht, einer Seitenansicht und einer Rückansicht.

Further details of the invention will become apparent from the following description of a preferred embodiment and from the drawings. This show in a schematic representation:

FIG. 1

a vertical section through a roller;

FIG. 2

a plan view of the device, pivoted to the right and to the left;

FIG. 3

a front view of the device, pivoted counterclockwise and clockwise;

FIGS. 4a to 4c

a side view of the device with three different positions of a dozer blade;

FIG. 5

the drive train of the roller;

FIG. 6

a towing vehicle with attached device in a plan view, a side view and a rear view.

As FIG. 1 shows, the roller 1, a steel tube 2 with an outer diameter of 350 mm and a wall thickness of 8 mm. On the steel tube 2, seventeen entrainment 3 of a wear steel (Hardox 450) welded by means of welds 4. On the front in the direction of rotation edge region of the entrainment 3 each wear layer 5 is welded from order wire, which increases the removal of the roller. A rim and the hub are denoted by the reference numerals 6 and 7.

The large diameter of the roller brings a relatively low angle of entry on the pavement with it, whereby the roller 1 can easily slide over larger stones.

FIG. 2 shows that a frame 8, in which the roller 1 is mounted, and a dough blade 9 is articulated jointly via a carrier 10 to a base plate 11 by means of a hinge 12. The base plate 11 is fixed to the mast 13 of a host vehicle 14, such as FIG. 6 shows. The frame 8 is connected by webs 15 with a central element 16 which is pivotable together with the frame 8 and the blade 9.

On the base plate 11, two hydraulic piston / cylinder units 17 are articulated, the other end is pivotally connected to the frame 8, so that by operating the piston / cylinder units 17 of the frame 8 with the roller 1 and the blade 9 together by up to 29 ° are pivotable to the right and to the left. These pivoting movements take place in a horizontal plane.

FIG. 3 shows that the roller 1 with its frame 8 in a vertical plane to both sides can be pivoted by 10 °, in turn, the dozer blade 9 is pivoted accordingly. The pivotal movement is caused by two hydraulic piston / cylinder units 18 which is hinged at one end to the base plate 11 and the other end to a frame part 19 connected to the frame 8. By operating the piston / cylinder units 18, the roller 1 and the blade 9 can be pivoted in a vertical plane at a selected angle up to 10 °.

The FIGS. 4a to 4c show that the dozer blade 9 can be raised hydraulically over the bearing surface of the roller 1 ( FIG. 4a ), together with the roller 1 can rest on the cover 20 ( Figure. 4b ) or can be pressed against the cover 20 with the roller 1 raised.

FIG. 5 shows the drive train of the roller 1, in which the torque of the PTO shaft of the host vehicle by means of PTO shaft (with overload clutch) is transmitted to the device. From there, the torque passes via a drive shaft 21 to an angle gear 22, of which the torque passes over two drive shafts 23 and is transmitted via a chain drive 24 to the drive hubs 25 of the roller 1.

FIG. 6 shows that the device is attached with its base plate 11 to the rear mast 13 of a host vehicle 14. The device is pivoted laterally, so that the roller 1 abrades path material from the lateral edge region of a pavement and pushes it to the middle of the way, where all cavities between the pavement and the roller 1 are filled.

Claims (7)

Apparatus for remediating and profiling damaged water-bound road cover, which is mountable to a carrier vehicle, with a counter to the direction of travel of the carrier vehicle (14) rotatable roller (1), on the outer circumference of the driver projections are mounted, which are suitable for resting on an outer cover (20) are to scrape away path material, wherein the roller (1) via a gear with the shaft output of the carrier vehicle (14) is connectable,
characterized,
that the roller (1) is mounted in a frame (8) which is hinged to a base plate (11) attached to the carrier vehicle (14) can be fastened,
that the frame (8) with the roller (1) is pivotable in both directions about a central vertical axis and about a central horizontal axis,
that a leveling device (9) in the direction of travel behind the roller (1) is connected to the frame (8) in such a way that it is pivotable together with the latter about the vertical and the horizontal axis,
in that the leveling device (9) is hydraulically raisable and lowerable relative to the roller (1), and
in that the leveling device (9) can be pressed against the cover (20) with an adjustable pressure in order to change the weight with which the roller (1) rests on the cover, whereby the removal rate of the roller is adjustable. Device according to claim 1,
characterized,
in that the driver projections are strips (3) extending in the longitudinal direction of the roller (1) and extending over at least part of the length of the roller (1). Device according to one of claims 1 or 2,
characterized,
in that the frame (8) is drivingly connected to the base plate (11) via substantially horizontal and vertical piston / cylinder units (17, 18) causing the pivoting movements. Device according to one of claims 1 to 3,
characterized,
that the grading device (9) with a continuously variable pressure against the Wegdecke (20) can be pressed, whereby the removal rate is continuously adjustable. Device according to one of claims 1 to 4,
characterized,
that the grading device (9) is a blade. Device according to claim 5,
characterized,
that the dozer blade has a flat bearing surface. Device according to one of claims 1 to 4,
characterized,
that the leveling device is a roller.

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