• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a method and apparatus for repairing an asphalt coating (1). Hereby one heats and mixes the asphalt pulp in a pulp trough (3), from which the asphalt pulp is transported to a repair object (6) under the pulp trough via a bottom cover (5) thereon. It is characteristic of the present solution that the pulp tray has a directional and profiling plate (21) with which to form the asphalt pulp laid under the pulp tray. For this purpose, the directional and profiling plate is controlled with a third actuator (22) which acts on the directional and profiling plate so that it is bent through the actuation of the actuator to absorb the geometry of the surrounding asphalt coating. As a result of this bending, the directional and profiling sheet forms the asphalt pulp transported under the pulp trough to also absorb the geometry of the surrounding asphalt pavement.
    公开号:FI20176146A1
    申请号:FI20176146
    申请日:2017-12-22
    公开日:2019-06-23
    发明作者:Marko Koivisto
    申请人:Vm Asfaltti Oy；
    IPC主号:
    专利说明:

    Method and apparatus for repairing asphalt pavement
    Background of the Invention
    The present invention relates to a method according to the preamble of claim 1 for repairing asphalt paved roads and fields.
    The invention also relates to a device according to the preamble of claim 6 for carrying out such a method.
    It is previously known to provide a machine sealed asphalt patch whereby a new flat surface is provided at the position to be patched using a applicator for spreading the patch and simultaneously compacting it.
    In particular, asphalt patching is used to fill holes and depressions in the traffic area, which also includes grouting in road areas. According to the Road Administration's guidelines, the quality goal of the patches is that the patch should be similar to the old, old pavement and then wear at the same speed. This may require the removal of defective paving material and replacement with a new, well-sealed or sealable repair material which is also associated with a well-intact old structure. The structure of the junction significantly affects the stability of the site, which often requires the edges of the site to be shaped regularly, from work to intact and steep, and heated.
    Successful repair requires known arrangements to cut, saw or mill a perpendicular cross-section of at least 20 mm to the beginning and end of the area to be repaired. If the patching point is narrower than the old pavement, longitudinal seams that are cut, sawed or milled in the direction of the road are also required. The patch area is cleaned and a bitumen solution or emulsion is applied to improve patch adhesion. The repair mass is applied mechanically and compacted separately by rolling.
    The groove patch is used to repair wear grooves on the pavements, long narrow mesh cracks, longitudinal cracks and deformation defects. The necessary additional mass and any additional binder are added in front of the milling drum, whereby they are mixed with the old coating during milling. The mixed mass is discharged from the milling drum to a leveling beam, whereby the mass is applied and pre-compacted to the treated area. The final compaction work is performed separately by milling. Here, too,
    20176146 prh 22 -12- 2017 In patch work, the ends of the spot must be bent over a distance of 2 - 5 m so that they do not feel uncomfortable when traveling.
    Indeed, current patching methods are laborious and often do not achieve sufficient strength and load-bearing properties at the point to be patched.
    Frequent patching irregularities are also left on the pavement, causing water to pool on the repaired pavement.
    Brief Description of the Invention
    It is therefore an object of the invention to provide a method and apparatus for performing the method so that the above problems can be largely solved.
    This object is achieved in that the method and the device for repairing the asphalt pavement according to the present invention have the characteristics defined in the claims.
    More specifically, the method and apparatus of the present invention are essentially characterized by what is set forth in the characterizing part of the independent claims 1 and 6.
    Preferred embodiments of the invention are claimed in the dependent claims.
    The invention is based on the fact that following the geometry of the area to be patched, a patch is obtained which is better adhered to the surrounding surface while substantially improving the ergonomics and patch durability of the road user.
    The terms used above in the description, above, below, and so on, illustrate features of the invention in directions relative to the device of the invention as shown in the accompanying figures.
    The invention provides considerable advantages. Thus, the pavement can be repaired with much less work and material consumption, while keeping the road or other surface in a satisfactory condition for traffic.
    The coating patching performed by the invention also supports other coating functions, such as uraremix or remix coatings. Therefore, there is no need for milling prior to the next mode of operation, as is the case with existing cast asphalt pavements. In this way, the present repair method and device can provide significant cost savings.
    20176146 prh 22 -12- 2017
    Other advantages of the invention are set forth below when specific embodiments of the invention have been described in more detail.
    BRIEF DESCRIPTION OF THE DRAWINGS
    In the following, a preferred embodiment of the invention will be described in more detail with reference to the accompanying drawing, in which Figure 1 is a schematic view of the essential functional parts of the present patching device, Figure 2 is a cross-sectional view of the Fig. 4 shows the device of Fig. 1 approaching the patch, Fig. 5 shows the device of Fig. 1 over a patch 15, Fig. 6 shows the leveling and shaping plate of the device in its basic position, and Fig. 7 shows the leveling and shaping plate of the device in its operating position.
    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
    In the present figures, the method and apparatus for repairing asphalt pavements are not illustrated in scale, but are diagrammatic, illustrating the basic structure and operation of preferred embodiments. Herein, the constituents designated by the reference numerals in the accompanying drawings correspond to the reference numerals in this specification.
    Figures 1, 2 and 3 show a preferred embodiment of the present asphalt paving 1 repair device 2. The main components of the device are then shown schematically, as follows. The largest 30 distinguishes in the figures from the heated pulp container 3, which has a mixer known per se to maintain the asphalt mass to be loaded into the pulp container. The mixer is not shown separately in the figures. From the pulp container, the hopper 4 is led towards the bottom hatch 5 at the bottom of the pulp container, whereby the asphalt mass passing through the bottom hatch is directed to the repairable object 6 below the pulp container, e.g. Figure 4. The hopper funnel provides the asphalt mass
    20176146 prh 22 -12-2017 where the larger aggregate of the pulp reaches the center of the funnel where its throughput is most efficient. The part of the asphalt mass consisting of the smaller aggregate will reach the outer edges of the funnel, penetrating the larger aggregate slightly slower.
    The device 2 is further provided with a measuring sensor 8 indicating the working direction 7, which detects the beginning and the end of the object to be repaired. The gauge sensor can detect anomalies in the shape and / or color of the old asphalt pavement 1, on the basis of which the gauge sensor is able to guide the device where the repair object 6 begins and ends. Thus, the metering of the asphalt10 bulk material for repair can be accomplished just by timely opening and closing the bottom hatch 5 below the hopper 4. This gravity flow of the asphalt mass is preferably controlled by at least one first actuator 9 controlling the bottom hatch which receives its command from said gauge. Such a measuring sensor may be, for example, a machine vision device, one of which on the market is a 1VP Ruler suitable for 3D measurement. As the asphalt mass flows from the bottom hatch to the repair site 6, the mass flow rate is controlled by the vertical displacement of the mass container 3. The higher the pulp tank is lifted, the more pulp will flow from it. This vertical displacement is controlled by means of the sides 11 on the outer sides 10 of the container opposite and substantially parallel to the working direction 7 of the device 2. These sides rest on the undersurface of the surface 12 of the coating 1 to be repaired.
    As the asphalt mass flows into the repair site 6, it encounters the gravity compactor 15 in the crossing device 2, which presses the asphalt mass against the base 16 and the walls 17 of the asphalt mass as it advances over the site, comparing Figures 4 and 5. The compactor may be provided. A and Fig. 3, the first 30 facing front edge 18 of the asphalt mass is provided with a special cam directed towards the pulp container, which, when the device is moving, promotes compaction by applying a compressive force to the asphalt mass encountered. Of course, a similar compression effect is achieved by fitting the front edge 18 of the compactor slightly upstream of the rear edge 20 therein, or by forming the compactor arcuate with the front edge slightly above the rear edge.
    20176146 prh 22 -12- 2017
    The asphalt pavement 1 is completed by a leveling and shaping plate 21 in the apparatus, particularly shown in Figs. 6 and 7. This preferably protrudes from the last rear edge of the apparatus to be repaired 6 and is pivotally connected to the apparatus. 4. The leveling and shaping plate is connected to the body of the device by two lever arms 23 connected to its opposite outer ends, compare Figures 6 and 7. The third actuator is in turn disposed between these lever arms, where it is arranged to press the leveling and shaping plate against the surface 12 of the coating. As a result of the force exerted thereon, the leveling and shaping plate tends to follow the geometry of the surrounding pavement, while the device 2 moves to the repair site to formulate a controlled asphalt mass surface to conform to the geometry of the surrounding surface. Thus, when the groove in the groove is patched, the upper surface of the groove will follow the shape of the bottom of the surrounding groove. In turn, when making 15 groove patches, the top surface of the patching position will follow the surface of the adjacent coating without creating any level difference therewith.
    The present device 2 is connected via a known adapter 24 to a suitable work machine, for example a tractor or a front loader. By providing an adapter to permit lateral displacement of the device, the alignment of the device to the repair site y20 can be simplified and accelerated.
    The device described above operates as follows.
    The asphalt mass used for the repair of asphalt pavements 1 is loaded into the pulp container 3 of the machine-attached device 2, where the asphalt mass is heated and mixed to maintain its flexibility and homogeneity. The bulk container is carried, supported by the implement, to a repair site, over which it is directed to pass in a mainly continuous motion. At the repair site, the asphalt mass is guided from the pulp container through a hopper 4 through a bottom hatch 5 at the bottom of the bulk container to a repair target 6 located below it, detecting a target underneath the device 30 to control the operation of the bottom hatch. The gauge sensor dosing the asphalt mass in a timely manner by opening and closing the bottom hatch in the hopper via its first actuator 9. When flowing from the pulp container through the funnel toward the bottom hatch, the funnel tapered flow path 35 provides distribution within the asphalt mass where the larger aggregate of the pulp tends to center the flow channel while the smaller aggregate remains as the flow channel6.
    20176146 prh 22 -12- 2017 at the outer edges of the van. As a result of this distribution, the larger rock material, after passing the bottom hatch 5, passes primarily to the bottom 16 of the repair target 6, while the smaller rock material remains mainly on the edges 17 and the surface of the target. As the machine advances under the control of the implement, the gravity compactor 15 performs the first compacting of the asphalt mass. The compactor directs the smaller aggregate to the peripheral areas of the repair site, whereupon the forthcoming leveling and shaping plate 21 spreads the adhesive small aggregate fraction asphalt mass to the periphery of the repair site and partially adheres to the surface 12 of the asphalt pavement 1.
    If desired, the gravity compactor 15 may be provided with a direction-oriented cam 19 which, when encountered with the asphalt mass, compresses the mass to the repair site 6, whereupon the larger aggregate is compacted to the repair site base 16 to provide the required load capacity.
    In turn, the action of the leveling and shaping plate 21 is arranged to control a third actuator 22 which presses the plate against the repair object 6 and the surrounding surface 12 of the asphalt pavement 1. As a result of the compressive force exerted by the actuator, the leveling and shaping plate 21, under the control of the actuator 22, will deflect according to the particular geometry of the coating surface. By providing an accurate correction to the surrounding surface in this way, the otherwise frequently occurring irregularities in the pavement can be avoided, causing both pond water and noise and ergonomics disadvantages for road users.
    The present method can repair the most common damage to asphalt pavements 25 such as holes, pits, abrasions, longitudinal cracks and deformation damage.
    The method provides a patch that adheres firmly to the patch to be coated and does not wear out or damage faster than the surrounding coating. Nor does it interfere with subsequent reuse of the material of the repaired coating site.
    It will be obvious to a person skilled in the art that as technology advances, the basic idea of the invention can be implemented in many different ways. The invention and its embodiments are thus not limited to the examples described above, but may vary within the scope of the claims.
    权利要求:
    Claims (10)
    [1]
    The claims
    A method for repairing an asphalt pavement (1), wherein the asphalt mass is heated and mixed in a pulp tank (3), from which the asphalt mass is directed to a repair object (6) below the pulp tank via a bottom opening (5) in the pulp container. ) shaping the asphalt mass applied below the pulp container, the leveling and shaping plate (21) being guided by a third actuator (22) acting on it, such that the force exerted by the third actuator on the leveling and shaping plate bends the surrounding asphalt pavement thus shaping the surface of the guided asphalt mass below the pulp tank to conform to the geometry of the surrounding asphalt pavement.
    [2]
    Method according to Claim 1, characterized in that the start and end of the repair object (6) are arranged to detect a measuring sensor (8) so that it performs metering of the asphalt mass by timely opening and closing the bottom hatch (5) in the hopper (4).
    [3]
    Method according to Claim 1 or 2, characterized in that a hopper is provided in the pulp container (3) having a flow channel (25) tapering towards the bottom hatch, the flow channel providing a distribution in the asphalt mass where a larger aggregate tends to center in the flow channel. as a result, the larger aggregate ends up primarily on the bottom (16) of the repair object (6) while the smaller aggregate remains mainly on the edges (17) and the surface of the repair target.
    [4]
    Method according to one of the preceding claims, characterized in that a gravity compactor (15) is fitted below the pulp container (3), which performs the first compacting of the guided asphalt mass on the repair site (6), guiding the smaller rock material to the peripheral areas.
    20176146 prh 22 -12- 2017
    [5]
    Method according to Claim 4, characterized in that the gravity compactor (15) is provided with a cam (19) oriented towards the working direction (7) which, when encountering the asphalt mass, compresses the mass to the repair site, whereby larger aggregate is compacted especially to the base (16).
    5 giving the casting the load it needs.
    [6]
    Method according to one of the preceding claims, characterized in that the pulp container (3) with its funnels (4) is mounted on the working machine by means of a lateral displacement adapter (24).
    [7]
    A device (2) for repairing an asphalt pavement (1) having a heated pulp tank (3), a mixer for maintaining the asphalt mass in the pulp tank, and
    A bottom hatch (5) guiding the asphalt mass from the bulk container to a repair object (6) below it, characterized in that the device further comprises a leveling and shaping plate (21) and a third actuator (22) controlling the operation of the leveling and shaping plate.
    [8]
    Device (2) according to claim 7, characterized in that the pulp container (3) has a funnel-shaped shape with a flow channel (25) tapering towards the bottom hatch.
    [9]
    Device (2) according to claim 7 or 8, characterized in that the device comprises a measuring sensor (8) for detecting the beginning and end of the object to be repaired and for opening and closing the bottom hatch (5),
    Device (2) according to one of Claims 7 to 9, characterized in that the device comprises a gravity compactor (15) fitted below the pulp container (3).
    Apparatus (2) according to claim 10, characterized in that the gravity compactor (15) comprises a cam (19) oriented in the working direction (7) for pressing the asphalt mass into the repair object (6), for compacting larger aggregate on the base (16).
    Device (2) according to claim 10 or 11, characterized in that the first actuator (9) is arranged to control the operation of the bottom hatch (5).
    [10]
    Device (2) according to one of Claims 7 to 12, characterized in that the device (2) comprises an adapter (24) for mounting it on the work machine in a manner allowing lateral displacement.
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    同族专利:
    公开号 | 公开日
    FI128430B|2020-05-15|
    引用文献:
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    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    FI20176146A|FI128430B|2017-12-22|2017-12-22|Method and device for repairing an asphalt surface|FI20176146A| FI128430B|2017-12-22|2017-12-22|Method and device for repairing an asphalt surface|
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