EP2947206A1 - After-treatment machine and method for the subsequent processing of a freshly made concrete layer - Google Patents

Abstract

In a post-treatment machine (1) for reworking freshly made concrete layers (10), in particular in the direction of travel (50) longitudinally extending concrete carriageways, a predetermined width, with one of drives (4) supported machine frame (2), with at least one transverse to the direction (50) movable Texturiereinrichtung (3, 5) for applying a texturing with a plurality of texturing tools (30) in the uncured surface of the concrete layer (10), and with a control unit (24) for adjusting the travel speed in the direction of travel (50) provided that the control unit (24) detects the travel speed and / or the travel speed of the texturing device (3,5) and during forward or reverse travel, the travel speed and / or the travel speed of the texturing device (3,5) in the transverse direction (40) in Depending on a desired Texturierwinkels controls, with the texturing angle from the ratio of the speeds.

Description

The invention relates to a post-treatment machine according to the preamble of claim 1, as well as a method according to the preamble of claim 8.

Such construction machines are for example from the US 2007/0286679 or the DE 102011003271 A known, in the form of an aftertreatment machine, with which a newly created concrete pavement of a road surface with the aid of, for example, a brush assembly can be textured and sprayed using a spray unit then with a liquid aftertreatment agent ( EP 1841637 A ).

In the production of a concrete pavement, especially in the construction of concrete pavements, the concrete is usually installed by a Gleitschaltungs paver form and correct position and this with a smoothing device, eg. As a cross straightener, smoothed. In some cases, a longitudinal smoother is additionally used.

Before applying the aftertreatment agent through the aftertreatment machine, the blanket must still be given a final surface finish having a surface texture corresponding to the intended use. This is to increase the grip and ride comfort, and reduce the tire-road noise.

With regard to the texturing of the concrete surfaces, the clients have different requirements with regard to the type of texture to be applied.

As a result, it may be necessary for the aftertreatment machines to be converted in a time-consuming manner in order to achieve a desired texturing as desired by the client. Another disadvantage is that the conversion kits must be kept separately.

The DE 10 2011 003 271 A describes an apparatus and a method for producing a groove structure with a cutting roller which is suspended at a certain angle to the working direction on a freely displaceable slide in the transverse direction. The cutting roller can thus generate obliquely to the roadway grooves during forward or reverse travel of the machine.

By rotating the working direction of the cutting roller and retracting the aftertreatment machine, a second groove structure can be produced, the grooves of which intersect the first groove structure.

If the machine is moved back, or if another angle of the cutting roller is to be adjusted to the working direction, the cutting roller must be raised.

Coordination of speeds is not required.

From the US 7,517,171 An aftertreatment machine is known, which allows an obliquely extending to the road texturing, in which the texturing device is arranged on a carriage movable transversely to the carriageway and the texturing device are moved back and forth in the working direction can. The aftertreatment machine is not moved. A controller coordinates the carriage movement in the transverse direction of the machine with the movement of the texturing element in the working direction. Also in this prior art, a considerable amount of equipment is necessary to meet desired Texturieraufgaben. The disadvantage here is that the texturing can be changed only to a small extent.

The invention is therefore an object of the invention to provide an aftertreatment machine and a method for retrofitting of freshly made concrete layers that can perform different texturing tasks without time-consuming changeover times and without great expenditure on equipment in a simple manner.

To solve this problem serve the features of claim 1 and 8, respectively.

The invention advantageously provides that a control unit detects the driving speed and / or the travel speed of the texturing device during forward or reverse travel and controls the travel speed and / or the travel speed as a function of a desired texturing angle, wherein the texturing angle is determined by the ratio of the Speeds results. The controller can therefore measure the vehicle speed and, depending on a desired texturing angle, control the speed of movement of the texturing device during the forward or reverse travel in the transverse direction or detect the speed of movement of the texturing device and control the driving speed. It is also possible to control both speeds depending on the desired texturing angle.

The control unit can control the driving speed for a given travel speed of the texturing tools or control the travel speed of the texturing tools for a given travel speed.

The control unit may include means for inputting a desired texturing angle.

Detectors can measure the travel speed of the machine frame in the longitudinal direction and the traversing speed of the texturing device in the transverse direction and transmit the measurement signals to the controller.

The texturing device may be a cross texturing device and preferably has a fixed, extending in the direction of travel length.

The texturizer may also have a variable length extending in the direction of travel, e.g. Extension elements are attachable.

The texturing device can also be a longitudinal texturing device, in which the texturing tools can be moved in the transverse direction at a predeterminable speed.

The texturing tools are preferably interchangeable, and the spacing of the texturing tools may also be variable.

The texturing tools of a longitudinal texturing device can rotate endlessly transversely to the direction of travel.

If the texturing tools are continuously guided in a horizontal plane in which they are constantly engaged with the concrete layer, the front in the direction of travel texturing produce a texturing under a predetermined, relative to the direction of positive angle and the rear in the direction of texturing a texturing under the same , negative angle relative to the direction of travel.

If the returning texturing tools are returned in a raised position or are endlessly guided in a vertical or inclined plane to the surface of the concrete layer in which they do not touch the concrete layer during the return, a pure oblique texturing can be carried out.

Accordingly, depending on the service order, the aftertreatment machine can be controlled solely by virtue of the control without retrofitting in such a way that any desired texturing pattern can be flexibly applied.

A working device which is transversely movable for application of a texturing may preferably be a cross texturing device which can be moved to a rest position in which the cross texturing device is disengaged from the concrete layer.

The cross-texturing device is preferably movable back and forth on a rail guide transversely to the working direction, which has a height offset on at least one lateral end beyond the width of the concrete layer, which raises the cross-texturing device at this end into the rest position. In the raised position, it is ensured that the cross texturing device does not come into contact either with the concrete layer or with other aggregates.

In a preferred embodiment, it is provided that the machine frame has parallel to the working direction extending longitudinal beams and transverse to the direction of the cross member, wherein the transversely extending to the direction of the cross member for variable adjustment of the track width of the drives and to adapt to the width of the concrete layer are telescopic.

It is preferably provided that the working devices have a longitudinal spraying device and / or a transverse spraying device which can be moved back and forth over the working width of the concrete carriageway.

It can be provided that the cross-spray device in the operating position in extension of the cross-texturing preferably in the working direction lagging or unilaterally or both sides next to the Quertexturiereinrichtung and is movable together with the Quertexturiereinrichtung.

The machine frame can be carried by two individual laterally arranged longer drives, or by a total of four drives, wherein two consecutive drives can be arranged on each side of the machine frame. The drives are connected via lifting columns with the machine frame over which a height adjustment of the machine frame can be made relative to the ground.

It is preferably provided that the transverse or longitudinal texturizing devices have tools which are fastened with a quick-change system. In this way it is possible to replace the tools without long set-up times, or replace defective tools without significant loss of time.

According to a method for the subsequent processing of freshly produced concrete layers, the invention advantageously provides that the driving speed and / or the travel speed of the texturing device is detected as a function of a desired texturing angle, and the driving speed and / or the travel speed of the texturing device during a forward or reverse travel is controlled in the transverse direction, wherein the texturing angle results from the ratio of the speeds.

Preferably, at a given travel speed of the texturing tools, the travel speed is controlled or, for a given travel speed, the travel speed of the texturing tools is controlled at a ratio predetermined by the set texturing angle.

By introducing a transverse texturing over a distance of predetermined length in one direction of travel and then over a subsequent further distance of the same length in an opposite direction of travel successive texturing can be introduced under a texturing in the same direction in the concrete layer.

In the following, embodiments of the invention will be explained in more detail with reference to the drawings.

Fig. 1

eine Nachbehandlungsmaschine nach dem Stand der Technik,

Fig. 2

eine perspektivische Ansicht der Nachbehandlungsmaschine gemäß Fig. 1,

Fig. 3

eine quer verfahrbare Quertexturiereinrichtung mit koordinierten Geschwindigkeiten der Nachbehandlungsmaschine und der Quertexturiereinrichtung,

Fig. 4

das Ausführungsbeispiel der Fig. 3 nach Abschluss der Querbewegung der Quertexturiereinrichtung,

Fig. 5

das Vorfahren der Nachbehandlungsmaschine nach Abschluss des unter Vorwärtsfahrt erstellten ersten Texturierabschnitts,

Fig. 6

das Fertigen des zweiten Texturierabschnitts unter Rückwärtsfahrt der Nachbehandlungsmaschine,

Fig. 7

den Abschluss des zweiten Texturierabschnitts,

Fig. 8

das Vorfahren der Nachbehandlungsmaschine nach Abschluß des zweiten Texturierabschnitts, und

Fig. 9

ein Ausführungsbeispiel einer Längstexturiereinrichtung mit in Querrichtung verfahrbaren Texturierwerkzeugen.

Show it:

Fig. 1

a post-treatment machine according to the prior art,

Fig. 2

a perspective view of the aftertreatment machine according to Fig. 1 .

Fig. 3

a transversely movable cross-texturing device with coordinated speeds of the aftertreatment machine and the cross texturing device,

Fig. 4

the embodiment of Fig. 3 after completion of the transverse movement of the cross texturing device,

Fig. 5

the ancestor of the aftertreatment machine after completion of the first texturing section created while traveling forward,

Fig. 6

finishing the second texturing section while reversing the aftertreatment machine,

Fig. 7

the conclusion of the second texturing section,

Fig. 8

the ancestor of the post-treatment machine after completion of the second Texturierabschnitts, and

Fig. 9

an embodiment of a longitudinal texturing device with transversely movable texturing tools.

Fig. 1 shows schematically a post-treatment machine 1 in the form of a brush spraying machine as shown in the EP 1 841 637 A is known. The aftertreatment machine 1 may be a newly manufactured concrete layer 10, z. B. a road surface by means of a Quertexturiereinrichtung 3, z. As a brushing unit, and then spray using a spray unit with a liquid post-treatment agent.

The machine frame 2 has a suitable depth for transport on a transport vehicle, so that the machine can be transported on the transport vehicle on a road to the place of use. The machine frame with transverse and longitudinal members 18,28 has in comparison to the depth of a multiple of the width, for example, widening elements are used to adapt to a certain roadway width or the machine frame 2 is telescopic. It can be in the in Fig. 1 shown working position a roadway width of, for example, be bridged up to 18 m. The working direction is indicated in the respective drawings by an arrow 50.

The aftertreatment machine 1 has a chassis with multiple wheels and / or crawler tracks 4, which carry the machine frame 2 via lifting columns 8 adjustable in height.

The use of a total of four drives 4 at the lateral ends of the aftertreatment machine 1 has the advantage of a higher stability, wherein the Arrangement of the working equipment, in particular the texturing devices 3 in the direction of travel 50 centrally between the drives 4 has the advantage that the influence of inertia forces on the machine frame 2 when starting or braking the aftertreatment machine 1 are minimized. In addition, however, slight pitching movements taking place still have less of an effect on the position of the texturing device relative to the concrete surface.

The wheels or crawler tracks 4 can in particular in the case of four crawler tracks 4 of a in Fig. 1 shown working position are transferred to a transport position by means of a swivel gear. In the working position, as in Fig. 1 In the transport position, the chain drives 4 extend parallel to the longitudinal extent of the machine frame 2, that is, pivoted by 90 ° and transversely to the longitudinal members 28th

The crawler tracks 4 are hydraulically driven, steerable and height adjustable.

Fig. 2 shows a perspective view of the aftertreatment machine 1. On the left in the direction of travel 50 is the drive unit 22 with a control panel with a control unit 24. Both are arranged on a platform 20 of the machine frame 2, which is accessible and on its the drive unit 22 opposite side a spray tank 26 has.

As in the prior art, the transverse spraying device 6 is fastened to a transversal drive transversely across the concrete layer 10 or the carriageway width. Furthermore, at the transverse drive the Quertexturiereinrichtung 3, z. B. from a brushing unit attached. The Quertexturiereinrichtung 3 is, as best of Fig. 3a can be seen, guided in a rail-guided provided with a transverse drive carriage across the width of the concrete layer 10.

The rail guide of the carriage is raised for this purpose in an area laterally adjacent to the concrete layer 10 by a predetermined amount, so that the Quertexturiereinrichtung 3 can be transferred in addition to the concrete layer 10 or roadway in a raised state in a rest position.

The Quersprühererichtung 6, as shown in the Fig. 2 is shown, is detachably attached to the transverse drive. It can therefore be solved by switching to a Längssprühererichtung 7 of the transverse drive. In Fig. 2 Fig. 15 is a longitudinal spray direction 7 shown in a folded-up disabled state.

Fig. 3 shows a first embodiment of the invention, in which the Quertexturiereinrichtung 3 extends parallel to the direction of travel 50 and, for example, from a brush unit or from another Quertexturiereinrichtung with vertically downwardly projecting texturing 30, eg rigid pins consists. The cross-texturing device 3 is arranged approximately centrally between the front and rear crawler tracks 4 and can be moved transversely to the direction of travel between two end positions. In this transverse movement, the cross texturing device retains its orientation parallel to the working direction 50. The transverse movement direction 40 is orthogonal to the direction of travel 50, whereby the aftertreatment machine 1 can be moved forwards or backwards during texturing. Fig. 3 Accordingly, a texturing in which the cross-texturing device 3 is moved to the right during the forward travel of the aftertreatment machine 1. With the aid of the control unit 24, the forward speed in the direction of travel 50 and the transverse drive speed of the cross texturing device can be coordinated so that an adjustable texturing angle results from the ratio of the speeds.

If a constant texturing angle for the entire width of the concrete layer 10 is desired, a specific ratio between the travel speed of the aftertreatment machine 1 and the transverse movement speed of the cross texturing device in the control unit 24 is set. It is understood that the transverse movement speed of the cross texturing device 3 can be adjusted as a function of the driving speed of the aftertreatment machine 1, or vice versa.

For example, the travel speed of the transverse drive for the cross texturing device 3 can be detected in a simple manner by stops for the cross texturing device 3 on the left and right side of the aftertreatment machine 1 be measured by the time duration for the transverse movement across the width of the concrete layer 10.

Of course, data from the transverse drive can also be used to determine the speed in the transverse movement direction 40.

Finally, it is also possible to control both the driving speed and the transverse speed of the transverse texturing device jointly as a function of the set texturing angle.

Due to the fact that the speed ratio can also be changed during the transverse texturing, finally it is also possible to introduce a texturing pattern with different texturing angles into the concrete layer 10.

Fig. 4 shows the completion of a first Texturierabschnittes after the Quertexturiereinrichtung 3 has completely crossed the concrete layer 10.

Then there is the possibility that the aftertreatment machine advances by the length of the cross texturing device 3 ( Fig. 5 ) and how Fig. 6 it can be seen, reversing the next Texturierabschnitt generated, which is parallel to the first already manufactured Texturierabschnitt.

The control unit can in this case be configured so that the machine is automatically moved to the end of a Texturierabschnitts to a distance equal to the length of the texturing device to the front.

Fig. 7 shows the situation in which the second Texturierabschnitt is completed and Fig. 8 the situation in which the aftertreatment machine 1 advances again by the length of the cross texturing device 3 to produce the next texturing section. It is understood that the texturing can also be superimposed by the texturing sections are repeatedly traversed, under a different texturing angle, so that, for example, diamond patterns can be generated.

Fig. 9 shows an embodiment with a longitudinal texturing device, in which the direction of the concrete layer 10 above texturing tools 30 are moved continuously in the transverse movement direction 40. In this case, the longitudinal texturing device 5 extends over the entire width of the concrete layer 10 transversely to the direction of travel 50. Laterally outside the concrete layer 10, the texturing tools 30 can be returned. The texturing tools 30 may also be used, for example, in another, in Fig. 9 Not visible embodiment rotate in a vertical plane, so that the returning texturing tools 30 are out of engagement with the concrete layer 10.

In the case of the movement of the texturing tools 30 in a horizontal plane, the returning texturing tools 30 again pass through the concrete layer 10 in the opposite direction so that a diamond pattern can be produced when the after-treatment machine 1 is continuously moved forwards with the longitudinal texturing device.

If the texturing tools 30 run in a plane inclined to the surface of the concrete layer 10, it is possible to bring only the transversely moving texturing tools 30 into engagement with the concrete layer 10, while the reverse-directional texturing tools 30 may be out of engagement with the concrete layer 10 ,

The Texturiereinrichtungen can have a quick change device for tools, so that in a short time different brushes or tools, eg. As steel tines or plastic brushes can be used.

Claims (15)

Post-treatment machine (1) for reworking freshly produced concrete layers (10), in particular in the direction of travel (50) longitudinally extending concrete carriageways, a predetermined width, with one of drives (4) supported machine frame (2), with - At least one transversely to the working direction (50) movable texturing means (3, 5) for applying a texturing with a plurality of texturing tools (30) in the not yet cured surface of the concrete layer (10), and with a control unit (24) for setting the travel speed in the direction of travel (50),
characterized in that
the control unit (24) detects the travel speed and / or the travel speed of the texturing device (3,5) and during forward or reverse travel the driving speed and / or the travel speed of the texturing device (3,5) in the transverse direction (40) in dependence on a desired Texturing angle controls, resulting in the ratio of the speeds of the texturing. Aftertreatment machine (1) according to claim 1, characterized in that the control unit (24) controls the driving speed for a given travel speed of the texturing tools (30) or controls the travel speed of the texturing tools (30) for a given travel speed. After-treatment machine (1) according to claim 1 or 2, characterized in that the control unit (24) has means for inputting a desired texturing angle. Aftertreatment machine (1) according to one of claims 1 to 3, characterized in that detectors measure the travel speed of the machine frame (2) in the direction of travel (50) and the travel speed of the texturing device (3,5) in the transverse direction and the measurement signals transmitted to the control unit (24). Post-treatment machine (1) according to claim 1, characterized in that the texturing device is a transverse or longitudinal texturing device (3,5), in which the texturing tools (30) are movable in the transverse direction at a predetermined speed. Post-treatment machine (1) according to claim 5, characterized in that the texturing tools (30) of the longitudinal texturing device (5) rotate endlessly transversely to the direction of travel (50). Aftertreatment machine (1) according to claim 6, characterized in that the texturing tools (30) of the longitudinal texturing device (5) circulate endlessly in a horizontal plane and the texturing tools (30) in the direction of travel (50) have texturing at a predetermined relative to the direction of travel ( 50) produce positive angles, and the rear texturing tools (30) in the direction of travel (50) produce texturing below the same negative angle relative to the direction of travel (50). Method for the subsequent processing of freshly produced concrete layers (10), in particular in the working direction (50) longitudinally extending concrete carriageways of a predetermined width, with a self-propelled aftertreatment machine (1) with at least one transversely to the working direction (50) movable texturing device (3, 5) with texturing (30) acting on the concrete layer (10), the aftertreatment machine (1) being moved at an adjustable travel speed,
characterized in that
the speed of travel and / or the speed of movement of the texturing device is detected, and during forward or reverse travel, the driving speed and / or the traversing speed of the texturing device in the transverse direction is controlled in dependence on a desired texturing angle, whereby the ratio of the speeds to be set results from the texturing angle. A method according to claim 8, characterized in that at a given traversing speed of the texturing tools (30) the driving speed is controlled or at a given driving speed, the traversing speed of the texturing tools (30) is controlled in a predetermined by the set texturing ratio. A method according to claim 8 or 9, characterized in that by a transverse texturing over a distance of predetermined length in a direction of travel (50) and then over a subsequent further distance of the same length in an opposite direction consecutive texturing under a same Texturierwinkel in the concrete layer (10 ) are introduced. Method according to one of claims 8 or 9, characterized in that the aftertreatment machine (1) is continuously moved in the direction of travel (50) using a cross texturing device and a texturing at two different texturing angles in the continuous reciprocating movement of the cross texturing means (3 ) is produced. Method according to one of Claims 8 or 9, characterized in that the aftertreatment machine (1) is moved continuously in the direction of travel (50) using a transverse texturing device (3) and the ratio of the length of the transverse texturing device (3) and the travel speed of the aftertreatment device (1). are in such a relationship that the textures overlap symmetrically in the continuous reciprocation of the cross texturing means (3). Method according to one of claims 8 or 9, characterized in that a texturing using a Längstexturiereinrichtung (5) is produced with continuously transversely movable texturing tools (30). A method according to claim 13, characterized in that the texturing tools (30) continuously circulate substantially transversely to the direction of travel (50) in an endless loop, whereby the returning texturing tools (30) are disengaged from the concrete layer (10). A method according to claim 13, characterized in that the texturing tools (30) continuously circulate substantially transversely to the direction of travel (50) in an endless loop in a horizontal plane, wherein by the front in the direction of travel (50) texturing tools (30) under a texturing predetermined, relative to the direction of travel (50) positive angle is generated and by the in the direction of travel (50) in the opposite direction to the front texturing (30) moving rear texturing (30) a texturing under the same, relative to the direction of travel (50) negative angle is generated.

Images