Asphalt pavement heating and repairing device and heating and repairing method

Abstract

The invention discloses an asphalt pavement heating and repairing device and a heating and repairing method, and relates to the technical field of pavement repairing. The asphalt pavement heating and repairing device comprises a bottom plate, a protection mechanism is mounted at the top of the bottom plate, a heat dissipation mechanism is mounted at the front end of the bottom plate, a pressing mechanism is mounted at the rear end of the bottom of the bottom plate, and a liquefied gas bottle is fixedly mounted at the rear end of the top of the bottom plate. According to the asphalt pavement heating and repairing device, a liquefied gas bottle is used for providing power, a protection plate in a protection mechanism facilitates rapid heating of a repairing area and reduces heat loss, a hydraulic cylinder can enable an infrared heating plate to slide up and down, abrasion of the infrared heating plate is effectively reduced, and a heat dissipation mechanism enables the repairing area to rapidly dissipate heat and also enables the repairing area to rapidly dissipate heat. Dust and sundries in a repairing area can be blown away, the flatness of the repaired asphalt pavement is improved, a motor in the downward pressing mechanism enables a rotating rod to rotate, through meshing of oblique teeth and meshing of a worm and a worm wheel, the rotating shaft drives two supporting shafts to rotate, and unfolding and storage of a pressing roller are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of road surface repair, and in particular to an asphalt road surface heating repair device and a heating repair method. Background Art

[0002] Asphalt pavement is the surface layer of the road paved with asphalt mixture, which is composed of asphalt binder and mineral materials. It has the characteristics of wear resistance and anti-skid. When the road surface is damaged by natural aging or traffic load, in order to ensure road safety and smooth flow, regular inspection and necessary repairs are required. The heating repair method can quickly repair damaged asphalt pavement.

[0003] When using the existing asphalt pavement heating and repairing device, it is not convenient to adjust the height of the infrared heating plate during the heating and repairing movement in different areas. The stones on the road surface are easy to cause wear to the infrared heating plate, reducing the service life of the machine. In addition, the ordinary asphalt pavement heating and repairing device has no restrictions on the infrared heating plate, and the heat will diffuse to the asphalt pavement other than the asphalt pavement that needs to be repaired, causing unnecessary damage to the asphalt pavement. The fixed pressure roller of the existing asphalt pavement heating and repairing device cannot be unfolded and stored, so it is difficult to flatten the asphalt pavement on different terrains, and lacks flexibility and practicality. Summary of the invention

[0004] (1) Technical issues

[0005] The main purpose of the present invention is to provide an asphalt pavement heating repair device and a heating repair method, which can effectively solve the problems of heat loss and wear of infrared heating plates during asphalt pavement repair, dust and debris causing reduced flatness of the asphalt pavement, and the problem that the pressure roller cannot be unfolded and stored.

[0006] (2) Technical solution

[0007] To achieve the above objectives, in a first aspect, the present invention provides a technical solution for a heating repair device for an asphalt pavement as follows:

[0008] A heating and repairing device for an asphalt pavement comprises a base plate, a protective mechanism is installed on the top of the base plate, a heat dissipation mechanism is installed on the front end of the base plate, a pressing mechanism is installed on the bottom of the base plate near the rear end, and a liquefied gas cylinder is fixedly installed on the top rear end of the base plate.

[0009] As a further scheme of the present invention, the protective mechanism includes an infrared heating plate, which is movably installed in the center position of the top of the base plate, and a support frame is fixedly installed on the top of the base plate, and two hydraulic cylinders are installed on the top of the support frame. Guard plates are fixedly installed on both sides and the front and rear parts of the infrared heating plate, and a plurality of guide rails are installed on the outer side of each of the guard plates, and a plurality of through grooves are opened through the outer side of the guard plate. The bottom end of the telescopic rod of the hydraulic cylinder is fixedly connected to the top of the infrared heating plate, and the infrared heating plate passes through the top of the base plate and slides up and down. The top-view surfaces of the four guard plates are rectangular, and the guard plates are fixedly installed with the infrared heating plates. The bottom of the through groove is on the same horizontal plane as the top of the infrared heating plate, and the guide rail passes through the inside of the base plate and is arranged to slide in a guided manner.

[0010] As a further solution of the present invention, the heat dissipation mechanism includes two fans, the fans are installed through the front end of the bottom plate, and a grille is fixedly installed on the top of the fan.

[0011] As a further scheme of the present invention, the pressing mechanism includes a rotating rod and a rotating shaft, which are movably mounted on the inner rear end of the base plate, a motor is mounted on the outer end of the rotating rod, a worm is movably mounted at the center position of the inner rear end of the base plate, bevel teeth are mounted on the front end of the worm and the inner end of the rotating rod, a worm wheel is fixedly mounted on the outer periphery of the rotating shaft near the middle, support shafts are fixedly mounted on both ends of the rotating shaft, a pressure roller is movably mounted between the two support shafts near the bottom end, the bevel teeth at the inner end of the rotating rod are meshingly connected with the bevel teeth at the front end of the worm, the worm and the worm wheel are meshingly connected, the support shaft and the rotating shaft are fixedly mounted, and the pressure roller is rotatably arranged between the two support shafts.

[0012] In a second aspect, the present invention provides a technical solution for a heating repair method for an asphalt pavement as follows:

[0013] A method for heating and repairing an asphalt pavement, using an asphalt pavement heating and repairing device, comprises the following steps:

[0014] The bottom plate is moved to the position where the asphalt pavement needs to be repaired through universal wheels, and the dust and debris at the repair position are blown away by the heat dissipation mechanism. The repair area is quickly heated and the heat loss is reduced by the protective mechanism. When the heating is completed and the bottom plate is moved, the infrared heating plate is slid upward away from the road surface by the hydraulic cylinder, and the downward pressing mechanism is started to flatten the heated, softened and filled asphalt pavement. After the asphalt pavement is repaired, the rotating rod and the rotating shaft are rotated by the motor, and the pressure roller can be rotated to be parallel to the ground for storage. At the same time, the heat dissipation mechanism is started again to quickly dissipate the heat in the repair area.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By setting up a protective mechanism, the extension and retraction of the hydraulic cylinder telescopic rod allows the infrared heating plate to slide up and down, while driving the guard plate to slide synchronously, which is convenient for rapid heating of the repair area and reduces heat loss. The sliding device can reduce the wear of the infrared heating plate by the road surface during movement, thereby increasing the service life of the machine.

[0018] By setting up a heat dissipation mechanism, during the asphalt pavement repair process, it is convenient to blow away dust or debris in the repair area, thereby improving the flatness of the asphalt pavement after repair. After the repair is completed, the fan can be used again to quickly dissipate the heat of the asphalt pavement, so that the repaired asphalt pavement can be put into use as soon as possible.

[0019] By setting up a downward pressing mechanism, the motor drives the rotating rod to rotate, and through the meshing of the helical teeth and the meshing of the worm and the worm wheel, the rotating shaft drives the pressure roller to rotate, so that the pressure roller is automatically fixed after being rotated to be unfolded or stored, which is convenient for the unfolding and storage of the pressure roller, and can flatten the heated, softened and filled asphalt pavement according to different terrains, thereby improving the flexibility and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an asphalt pavement heating repair device according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic structural diagram of a protection mechanism in an asphalt pavement heating repair device according to an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the structure of a heat dissipation mechanism in an asphalt pavement heating repair device according to an embodiment of the present invention

[0023] Figure 4 The present invention is a schematic diagram of the internal structure of a downward pressing mechanism in an asphalt pavement heating repair device according to an embodiment of the present invention.

[0024] In the figure: 1. bottom plate; 2. protection mechanism; 201. infrared heating plate; 202. support frame; 203. hydraulic cylinder; 204. guard plate; 205. guide rail; 206. through groove; 3. heat dissipation mechanism; 301. fan; 302. grille; 4. pressing mechanism; 401. rotating rod; 402. motor; 403. worm; 404. bevel gear; 405. rotating shaft; 406. worm wheel; 407. supporting shaft; 408. pressure roller; 5. liquefied gas cylinder. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the following is a brief description of the present invention in conjunction with the attached Figure 1-4 , further illustrating the present invention.

[0026] The embodiments of the present invention disclose a heating repair device and a heating repair method for an asphalt pavement.

[0027] In this embodiment, an asphalt pavement heating and repairing device includes a base plate 1, a protective mechanism 2 is installed on the top of the base plate 1, a heat dissipation mechanism 3 is installed on the front end of the base plate 1, a pressing mechanism 4 is installed on the bottom of the base plate 1 near the rear end, a liquefied gas cylinder 5 is fixedly installed on the rear end of the top of the base plate 1, and the protective mechanism 2 includes an infrared heating plate 201, the infrared heating plate 201 is movably installed at the top center position of the base plate 1, a support frame 202 is fixedly installed on the top of the base plate 1, two hydraulic cylinders 203 are installed on the top of the support frame 202, and guard plates 204 are fixedly installed on both sides and front and back of the infrared heating plate 201, and a plurality of guide rails 205 are installed on the outer side of each of the guard plates 204, and a plurality of through grooves 206 are opened through the outer side of the guard plate 204.

[0028] In this embodiment, the bottom end of the telescopic rod of the hydraulic cylinder 203 is fixedly connected to the top of the infrared heating plate 201, and the infrared heating plate 201 passes through the top of the base plate 1 and is slidable up and down. The height between the infrared heating plate 201 and the ground can be adjusted by sliding the infrared heating plate 201 up and down, which can reduce the wear of the road surface on the bottom of the infrared heating plate 201 during movement.

[0029] In this embodiment, the top view surfaces of the four guard plates 204 are rectangular, and the guard plates 204 are fixedly installed to the infrared heating plate 201. The guard plates 204 reduce heat loss in the heating area and protect the asphalt pavement in the external area.

[0030] In this embodiment, the bottom of the through groove 206 is at the same horizontal plane as the top of the infrared heating plate 201, and the through groove 206 can be used to clean the dust and debris that falls on the top of the infrared heating plate 201. The guide rail 205 runs through the interior of the bottom plate 1 in a guided sliding arrangement. Through the extension and retraction of the hydraulic cylinder 203 and the guide rail 205, the infrared heating plate 201 is guided to slide up and down.

[0031] In this embodiment, the heat dissipation mechanism 3 includes two fans 301, and the fans 301 are installed through the front end of the base plate 1. A grille 302 is fixedly installed on the top of the fan 301. The fans can blow away dust or debris in the repair area to improve the flatness of the asphalt pavement after repair. After the repair is completed, the fans can be used again to quickly dissipate the heat of the asphalt pavement, so that the repaired asphalt pavement can be put into use as soon as possible.

[0032] In this embodiment, the pressing mechanism 4 includes a rotating rod 401 and a rotating shaft 405, which are movably installed at the rear end of the interior of the base plate 1. A motor 402 is installed at the outer end of the rotating rod 401. A worm 403 is movably installed at the center of the rear end of the interior of the base plate 1. Bevel teeth 404 are installed at the front end of the worm 403 and the inner end of the rotating rod 401. A worm gear 406 is fixedly installed at the middle of the outer periphery of the rotating shaft 405. Support shafts 407 are fixedly installed at both ends of the rotating shaft 405. A pressure roller 408 is movably installed between the two support shafts 407 at the bottom end. The asphalt pavement that has been heated, softened and filled is flattened by the pressure roller 408. The rotating rod 401 and the rotating shaft 405 are rotated by the drive of the motor 402 to facilitate the adjustment of the expansion and storage of the pressure roller 408.

[0033] In this embodiment, the helical teeth 404 at the inner end of the rotating rod 401 are meshedly connected with the helical teeth 404 at the front end of the worm 403, and the worm 403 and the worm wheel 406 are meshedly connected. The meshing of the worm 403 and the worm wheel 406 rotates the rotating shaft 405, and the pressure roller 408 can be automatically fixed after being unfolded or stored, preventing the pressure roller 408 from self-rotating after rotation adjustment.

[0034] In this embodiment, the support shaft 407 is fixedly installed with the rotating shaft 405, and the pressure roller 408 is rotatably arranged between the two support shafts 407. The support shaft 407 drives the pressure roller 408 to rotate, expand or retract, so as to flatten the asphalt pavement after heating, softening and filling.

[0035] In this embodiment, a method for heating and repairing an asphalt pavement is provided, and the specific implementation steps of the method are as follows:

[0036] When repairing, the bottom plate 1 is moved to the position where the asphalt pavement needs to be repaired by the universal wheels, and two fans 301 are started at the same time. During the movement, the fans 301 are used to blow away dust and debris at the repair position. By starting the two hydraulic cylinders 203, the infrared heating plate 201 slides downward and contacts the road surface, and the infrared heating plate 201 is started for heating. The guard plate 204 reduces the heat loss and quickly heats the repair area. When the heating is completed and the bottom plate 1 is moved, the hydraulic cylinder 203 is used to make the infrared heating plate 201 slide upward away from the road surface to reduce the road surface from being heated by the infrared heating plate 201. The wear of the plate 201 is eliminated, and the motor 402 is started to rotate the rotating rod 401. Through the meshing of the bevel teeth 404 and the meshing of the worm 403 and the worm wheel 406, the rotating shaft 405 drives the two supporting shafts 407 to rotate, and the pressure roller 408 is rotated to contact the road surface for flattening. After the asphalt pavement is repaired, the rotating rod 401 and the rotating shaft 405 are driven by the motor 402 to rotate, and the pressure roller 408 can be rotated to be parallel to the ground for storage. At the same time, the fan 301 is started again to quickly dissipate the heat in the repair area in turn, so that the repaired asphalt pavement can be put into use as soon as possible.

[0037] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An asphalt pavement heating repair device, comprising a base plate (1), a protective mechanism (2) installed on the top of the base plate (1), a heat dissipation mechanism (3) installed on the front end of the base plate (1), a pressing mechanism (4) installed on the bottom of the base plate (1) near the rear end, and a liquefied gas cylinder (5) fixedly installed on the top rear end of the base plate (1), characterized in that: The protection mechanism (2) comprises an infrared heating plate (201), the infrared heating plate (201) being movably mounted at a central position on the top of the base plate (1), a support frame (202) being fixedly mounted on the top of the base plate (1), two hydraulic cylinders (203) being mounted on the top of the support frame (202), guard plates (204) being fixedly mounted on both sides and the front and rear of the infrared heating plate (201), a plurality of guide rails (205) being mounted on the outer side of each guard plate (204), and a plurality of through grooves (206) being arranged through the outer side of the guard plate (204).

2. The asphalt pavement heating repair device according to claim 1, characterized in that: The bottom end of the telescopic rod of the hydraulic cylinder (203) is fixedly connected to the top of the infrared heating plate (201), and the infrared heating plate (201) penetrates the top of the bottom plate (1) and slides up and down.

3. The asphalt pavement heating repair device according to claim 1, characterized in that: The top view surfaces of the four guard plates (204) are arranged in a rectangular shape, and the guard plates (204) and the infrared heating plate (201) are fixedly installed.

4. The asphalt pavement heating repair device according to claim 1, characterized in that: The bottom of the through groove (206) is in the same horizontal plane as the top of the infrared heating plate (201), and the guide rail (205) passes through the interior of the bottom plate (1) in a guiding and sliding arrangement.

5. The asphalt pavement heating repair device according to claim 1, characterized in that: The heat dissipation mechanism (3) comprises two fans (301), the fans (301) are installed through the front end of the bottom plate (1), and a grille (302) is fixedly installed on the top of the fans (301).

6. The asphalt pavement heating repair device according to claim 1, characterized in that: The pressing mechanism (4) comprises a rotating rod (401) and a rotating shaft (405), wherein the rotating rod (401) and the rotating shaft (405) are movably mounted at the rear end of the bottom plate (1), a motor (402) is mounted at the outer end of the rotating rod (401), a worm (403) is movably mounted at the center of the rear end of the bottom plate (1), the front end of the worm (403) and the inner end of the rotating rod (401) are both mounted with helical teeth (404), a worm wheel (406) is fixedly mounted at the center of the outer periphery of the rotating shaft (405), support shafts (407) are fixedly mounted at both ends of the rotating shaft (405), and a pressure roller (408) is movably mounted between the two support shafts (407) at the bottom end.

7. The asphalt pavement heating repair device according to claim 6, characterized in that: The helical teeth (404) at the inner end of the rotating rod (401) and the helical teeth (404) at the front end of the worm (403) are meshingly connected, and the worm (403) and the worm wheel (406) are meshingly connected.

8. The asphalt pavement heating repair device according to claim 6, characterized in that: The support shaft (407) and the rotating shaft (405) are fixedly installed, and the pressure roller (408) is rotatably arranged between the two support shafts (407).

9. A method for heating and repairing an asphalt pavement, using the asphalt pavement heating and repairing device according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: a base plate (1) is moved to a position where an asphalt pavement needs to be repaired by means of universal wheels, dust and debris at the repair position is blown away by means of a heat dissipation mechanism (3), the repair area is quickly heated by means of a protection mechanism (2) and heat loss is reduced, and when the heating is completed and the device is moved, an infrared heating plate (201) is slid upward away from the pavement by means of a hydraulic cylinder (203), and a pressing mechanism (4) is started to flatten the heated, softened and filled asphalt pavement, and after the asphalt pavement is repaired, a rotating rod (401) and a rotating shaft (405) are driven by a motor (402) to rotate, and a pressing roller (408) can be rotated to be parallel to the ground for storage, and the heat dissipation mechanism (3) is started again to quickly dissipate heat from the repair area.

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