Asphalt pavement repairing equipment and use method thereof
By integrating heating, filling and rolling technology in asphalt pavement repair equipment, the problem of poor repair effect of small damaged pavement is solved, efficient and automated asphalt caulking and pavement flattening are achieved, and the service life of the pavement after repair is extended.
Patent Information
- Application Number
- CN202411713472.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-01-10
AI Technical Summary
The prior art has problems in the repair of small damaged asphalt pavements such as poor connection and poor repair effect, especially when the vehicle passes through multiple times, it is easy to be damaged again.
Provides an asphalt pavement repair equipment, including a walking vehicle, a storage tank, a heating mechanism, a seam filling mechanism, a pressing mechanism, a pressing mechanism and a roller pressing mechanism, which softens the old asphalt by heating, increases the bonding force between new and old asphalt, and utilizes Infusion and rolling technology ensures that the asphalt is fully filled with cracks, combining the extruder and mechanical linkage structure to adapt to cracks of different widths and depths.
It improves the repair efficiency and quality, reduces the demand for manual operation, reduces labor intensity, ensures that the newly poured asphalt is closely integrated with the old pavement, and extends the service life of the pavement after repair.
Smart Images
Figure CN119287752A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of road surface repair, and in particular to an asphalt road surface repair device and a method of using the same. Background Art
[0002] At present, with the rapid development of the transportation industry, the demand for maintenance and repair of highway asphalt pavements is increasing. Traditional pavement repair methods often require a large amount of new materials, which is not only costly but also has a great impact on the environment. In recent years, in-situ hot regeneration construction technology has been widely used in the repair of highway asphalt pavements due to its environmental protection, economy and high efficiency.
[0003] In the prior art, the existing equipment for repairing the road surface is usually large-scale equipment, which performs milling, mixing, heating and paving on a certain road section as a whole. However, for small damaged roads, caulking is usually used for repair. However, this repair method is prone to loose connections, and after multiple vehicles pass through, it is damaged again, resulting in poor repair effect. Summary of the invention
[0004] In order to improve the repair effect of small damaged road surfaces, the present application provides an asphalt road surface repair device and a method of using the same.
[0005] In the first aspect, the present application provides an asphalt pavement repair device, which adopts the following technical solution: An asphalt pavement repair device, comprising: A traveling vehicle connected to the traction equipment; A storage tank, arranged on the traveling vehicle, for storing new asphalt; A heating mechanism is provided on the traveling vehicle and is used to heat the road surface at the crack; A crack filling mechanism is arranged on the traveling vehicle and is used for filling asphalt into the cracks; The extrusion knife is wedge-shaped, and the end with a smaller cross-sectional area is inserted into the asphalt pavement and located on both sides of the crack, with a grouting cavity formed inside, and a grouting hole communicating with the grouting cavity is opened at the end inserted into the asphalt pavement; A force-applying mechanism, disposed on the traveling vehicle, for driving the extrusion knife to move closer to or away from a road surface; A pressurizing mechanism, disposed on the traveling vehicle, connecting the material storage tank and the caulking cavity, and used for pressurizing the caulking cavity; The rolling mechanism is arranged on the traveling vehicle and is used for rolling the cracks of the asphalt pavement.
[0006] By adopting the above technical solution, the traveling vehicle is moved to the crack of the asphalt pavement that needs to be repaired through the traction equipment. Sufficient new asphalt has been pre-stored in the storage tank to ensure the supply of asphalt during the repair process. The heating mechanism is started to heat the pavement at the crack. The purpose of heating is to soften the old asphalt and increase its bonding strength with the new asphalt. It also helps to open the cracks and facilitate the subsequent asphalt injection. Then the crack is injected with asphalt by the grouting mechanism, and then the force-applying mechanism drives the extrusion knife close to the pavement, and the end of the extrusion knife (in a wedge shape) with a small cross-sectional area is inserted into the asphalt pavement and located on both sides of the crack. The inner cavity of the extrusion knife forms a grouting cavity, and the end of the extrusion knife inserted into the asphalt pavement is provided with a grouting hole connected to the grouting cavity. The pressurizing mechanism connects the discharge pipe with the grouting cavity, and pressurizes the grouting cavity, so that the new asphalt is forced to be injected into both sides of the crack through the grouting hole, so that the crack shrinks and the internal asphalt is squeezed to make the interior full; the rolling mechanism is started to roll the crack of the asphalt pavement.
[0007] The heating mechanism softens the old asphalt and increases the bonding strength between the new and old asphalt. At the same time, pressurized injection can ensure that the asphalt fully fills the cracks, thereby improving the repair efficiency and quality. The equipment integrates multiple functional modules such as a traveling vehicle, a storage tank, a heating mechanism, a caulking mechanism, a force-applying mechanism, a pressurizing mechanism, and a rolling mechanism, realizing an integrated operation from heating, injection to rolling, thereby improving the degree of automation. The design of the extrusion knife enables the equipment to adapt to cracks of different widths and depths, thereby increasing the scope of application of the equipment. The equipment is moved by a traction device, and is simple and convenient to operate, thereby reducing the need for manual operation and reducing labor intensity. The rolling mechanism can ensure that the newly injected asphalt is tightly combined with the old road surface, while leveling the road surface, thereby improving the quality and service life of the repaired road surface.
[0008] Optionally, a heating tube is provided inside the extrusion knife for heating the extrusion knife.
[0009] By adopting the above technical solution, a heating tube is arranged inside the extrusion knife, so as to facilitate heating at the position of the extrusion knife, apply pressure to the crack, and fill the crack densely.
[0010] Optionally, a blocking mechanism is provided on the extrusion knife, and the blocking mechanism comprises: A sealing plate is slidably disposed on the extrusion knife and is used to block or open the caulking hole; An adjusting component is arranged on the extrusion knife and is used for adjusting the sliding movement of the sealing plate.
[0011] By adopting the above technical solution, when the extrusion knife is fully inserted into the road surface, the adjustment component starts to work, driving the sealing plate to slide along the extrusion knife and gradually sealing the grouting hole; then the extrusion knife is pressed down, and when the extrusion knife reaches the position, the pressurizing mechanism is started, and the pressurizing mechanism connects the discharge pipe and the grouting cavity, and pressurizes the grouting cavity, so that the new asphalt is forced to be injected into the hole formed by the insertion of the extrusion knife through the tiny gap between the sealing plate and the extrusion knife (or the reserved grouting channel) under high pressure, so that the crack shrinks and the asphalt is squeezed; through the setting of the sealing mechanism, the asphalt on the road surface is reduced from blocking the grouting cavity on the extrusion knife, and at the same time it is convenient for the accumulation of asphalt.
[0012] Optionally, the adjustment component includes: A first support rod is rotatably disposed on the extrusion knife; A second support rod connected to the rotating end of the first support rod; The third support rod is rotatably arranged on the extrusion knife and abuts against the second support rod. The third support rod is connected to the sealing plate. As the second support rod is pressed downward, the third support rod is driven to rotate, so that the sealing plate slides and the caulking hole is opened.
[0013] By adopting the above technical solution, before asphalt pouring is carried out, the first strut and the second strut are in a relatively relaxed state, and the third strut is maintained at a certain angle by some means (such as a spring or other reset mechanism), so that the sealing plate is close to the extrusion knife to seal the grouting hole; when it is necessary to start asphalt pouring, the operator applies external force to the first strut by some means (such as a manual operating lever, an electric drive, etc.) to rotate it around its rotation point; as the first strut rotates, one end of the second strut (the end connected to the first strut) moves accordingly, causing the other end of the second strut (the end abutting the third strut) to be pressed downward; the downward pressure of the second strut causes the third strut to rotate around its rotation point, thereby driving the sealing plate connected to the third strut to slide along the extrusion knife; the sliding of the sealing plate opens the grouting hole to prepare for subsequent asphalt pouring.
[0014] After the sealing plate opens the grouting hole, the pressurizing mechanism starts working and pressurizes new asphalt into both sides of the crack; after the asphalt injection is completed, the operator releases the external force on the first support rod, and the first and second support rods return to their initial state under the action of the spring or other reset mechanism, and the third support rod also rotates and resets, driving the sealing plate to re-seal the grouting hole.
[0015] The sliding control of the sealing plate is achieved through the mechanical linkage structure of the first support rod, the second support rod and the third support rod, which is easy to operate and easy to realize automatic control; this mechanical linkage structure is relatively simple and compact, does not take up too much space, and is suitable for installation in the limited extrusion knife space; the mechanical structure is relatively simple, without complex electronic components or hydraulic systems, so it has high reliability and durability; by adjusting the length and angle of the support rod, it can adapt to cracks of different widths and depths, thereby improving the application range of the equipment; the mechanical linkage structure is relatively cheap, which helps to reduce the overall cost of the equipment.
[0016] Optionally, the adjustment component further includes: A return spring is arranged on the extrusion knife and connected to the first support rod, and is used for driving the first support rod to rotate.
[0017] By adopting the above technical solution, the introduction of the reset spring realizes the automatic reset function of the sealing plate, and the grouting hole can be quickly sealed after the asphalt injection is completed without human intervention; the automatic reset function reduces the workload of the operator and improves the operational efficiency of the entire repair process; the reset spring provides a stable restoring force for the first support rod, which helps to maintain the stability and reliability of the entire adjustment assembly during long-term use.
[0018] Optionally, the traveling vehicle is further provided with a cutting mechanism, and the cutting mechanism comprises: A fixed frame, arranged on the traveling vehicle; A cutting knife is slidably arranged on the fixing frame; The moving component is arranged on the fixing frame and is used for driving the cutting knife to cut the two sides of the crack.
[0019] By adopting the above technical solution, the traveling vehicle is moved to the asphalt pavement crack that needs to be repaired, ensuring that the cutting mechanism is facing the crack. The fixed frame of the cutting mechanism has been firmly installed on the traveling vehicle, providing stable support for the cutting knife. The moving component is on standby, ready to receive a start signal. The operator adjusts the sliding position of the cutting knife on the fixed frame according to the width and depth of the crack to ensure that the cutting knife can accurately cut along both sides of the crack; start the moving component, which starts to drive the cutting knife to cut along both sides of the crack; the cutting knife slides on the fixed frame and is precisely controlled by the moving component to ensure the accuracy and depth of the cutting; the cutting mechanism can also be used for extrusion cutting on both sides of the crack, which facilitates the extrusion knife to squeeze the internal structure to shrink the crack.
[0020] Optionally, the moving assembly comprises a moving cylinder, a piston rod of which is connected to the cutting knife.
[0021] By adopting the above technical solution and setting the movable cylinder, the cutting knife has a larger moving force, which facilitates cutting.
[0022] Optionally, the cutting mechanism further comprises: A side pressure block is slidably disposed on the fixing frame, close to the crack, protruding from the cutting blade, and with one end away from the fixing frame tilted toward the crack; The wedge block slides on the fixing frame, abuts against one end of the side pressure block close to the fixing frame and the side wall of the cutting knife. As the cutting knife moves downward, the wedge block is driven to move and squeeze the side pressure block close to the crack.
[0023] By adopting the above technical solution, the side pressure block and the wedge block are both slidably set on the fixed frame and are in a standby state; the end of the side pressure block away from the fixed frame is tilted toward the crack, ready to contact the road surface on both sides of the crack during the cutting process; the wedge block is located between the side pressure block and the cutting knife, ready to play a role in transmitting pressure when the cutting knife moves downward.
[0024] The traveling vehicle is moved to both sides of the asphalt pavement crack that needs to be repaired. The operator adjusts the position of the cutting knife, side pressure block and wedge block to ensure that they can accurately cut the pavement along the length of the crack. The cutting knife begins to move downward. When moving downward, the side pressure block is brought into contact with the pavement through the wedge block, and as it continues to move downward, the pavement moves closer to the crack, squeezing and shrinking the crack. The inclined design of the side pressure block enables it to contact the pavement on both sides of the crack more effectively and exert a certain lateral pressure. At the same time, this lateral pressure helps to squeeze the asphalt materials on both sides of the crack more tightly together, thereby improving the cutting effect.
[0025] The design of the side pressure block enables a certain lateral pressure to be applied to the road surface on both sides of the crack during the cutting process, which helps to squeeze the asphalt material more tightly together.
[0026] Optionally, the traveling vehicle is provided with a seam pressing mechanism, and the seam pressing mechanism comprises: A crack-pressing block is slidably arranged on the traveling vehicle and is used to seal the cracks; A pressure-applying assembly is arranged on the traveling vehicle and connected to the seam-pressing block, and is used for driving the seam-pressing block to slide.
[0027] By adopting the above technical scheme, the design of the seam pressing block enables it to be slidably set on the traveling vehicle, so as to accurately locate the crack position; driven by the pressure-applying component, the seam pressing block can quickly seal the crack, reducing the time and difficulty of manual operation; this efficient sealing method helps to improve the efficiency of road repair and reduce road damage and safety hazards caused by cracks; the seam pressing mechanism uses mechanical force for sealing, which is more uniform and stable than manual operation; the close contact between the seam pressing block and the crack helps to reduce leakage and water seepage, and improve the quality of repair; at the same time, the seam pressing mechanism can also be adjusted according to the width and depth of the crack to ensure the best sealing effect; through the sealing of the seam pressing mechanism, the cracks are repaired in time, reducing the erosion and expansion of the cracks by liquids such as water and oil; at the same time, the sealing of the seam pressing mechanism can also prevent the cracks from further deteriorating due to vehicle rolling, thereby enhancing the durability and stability of the road surface.
[0028] In the second aspect, the present application provides a method for using an asphalt pavement repair device, which adopts the following technical solution: A method for using an asphalt pavement repair device comprises the following steps: Cleaning the cracks: Clean the cracks and the areas around them; Preheating: Move the traveling vehicle to the upper side of the crack and use the heating mechanism to preheat the road surface at the crack; Grouting: Use a grouting mechanism to inject asphalt into the cracks; Formal heating: Use a heating mechanism to formally heat the cracks and the road surface; Lateral pressure: The moving assembly drives the cutting knife to slide, and the cutting knife squeezes the lateral pressure block through the wedge block. The lateral pressure block squeezes the asphalt on both sides of the crack, causing the crack to shrink until the cutting knife sinks into the road surface; Seam pressing: When the side pressing step is carried out, the pressure component is used to drive the seam pressing block to seal the crack; Cover: Use the caulking mechanism to lay the surface asphalt on the road surface and cracks; Extrusion: Insert the extrusion knife into the road surface, and then use the pressurizing mechanism to fill the cracks, so that the space between the extrusion knife and the cracks is densely filled; Roller compaction: Use a roller compaction mechanism to compact the road surface.
[0029] By adopting the above technical solution, first, the crack and its surroundings are thoroughly cleaned to remove debris, dust and loose asphalt to prepare for subsequent repair work; the traveling vehicle is driven to the upper side of the crack, and the heating mechanism is used to preheat the road surface at the crack. Preheating helps to soften the asphalt, improve the fluidity and adhesion of the asphalt, and provide favorable conditions for subsequent grouting work; the grouting mechanism is used to pour asphalt into the crack. During the grouting process, it is necessary to ensure that asphalt fills the cracks evenly and continuously to avoid bubbles and gaps. After grouting, the heating mechanism is used to formally heat the cracks and the road surface again. The purpose of this step is to further soften the asphalt, so that it can better blend with the surrounding road surface and improve the repair effect. The moving component is used to drive the cutting knife to slide. The cutting knife squeezes the side pressure block through the wedge block. The side pressure block squeezes the asphalt on both sides of the crack. This step helps to shrink the crack, improve the sealing of the crack, and reduce the damage caused by the cutting knife sinking into the road surface. During the side pressure step, the pressure component is used to drive the pressure block to seal the crack. The design of the pressure block can ensure that the crack is completely closed to prevent moisture and debris from entering the crack. The grouting mechanism is used to lay the surface asphalt on the road surface and cracks. The purpose of this step is to form a protective layer above the crack to improve the durability and aesthetics of the road surface. The extrusion knife is inserted into the road surface, and then the crack is filled with a pressure mechanism. The asphalt between the extrusion knife and the crack is filled densely, further improving the sealing of the crack and the flatness of the road surface. Finally, the road surface is rolled and compacted using a roller mechanism. During the rolling process, ensure that the rolling mechanism is in full contact with the road surface and apply pressure evenly so that the repaired road surface is consistent with the surrounding road surfaces.
[0030] Through a series of steps such as crack cleaning, preheating, crack filling, formal heating, side pressure, seam pressing, cover, extrusion and roller pressing, it can ensure that the cracks are completely repaired, and the repaired road surface is consistent with the surrounding road surface, improving the flatness and durability of the road surface; the side pressure and seam pressing steps squeeze the asphalt on both sides of the crack and seal the crack, enhance the sealing of the crack, prevent moisture and debris from entering the crack, and extend the service life of the road surface; this method uses mechanized construction, which can quickly and continuously complete each step, improve construction efficiency, and shorten the repair cycle; mechanized construction reduces the need for manual operation and reduces labor costs. At the same time, by accurately controlling the parameters of each step, it can reduce material waste and construction costs; mechanized construction reduces the risk of manual operation and improves construction safety. At the same time, the coordination between the various steps also reduces the safety hazards caused by improper operation.
[0031] In summary, the present application includes at least one of the following beneficial technical effects: 1. The heating mechanism softens the old asphalt and increases the bonding strength between the new and old asphalt. At the same time, pressurized injection can ensure that the asphalt fully fills the cracks, improving the repair efficiency and quality. The equipment integrates multiple functional modules such as a traveling vehicle, a storage tank, a heating mechanism, a caulking mechanism, a force-applying mechanism, a pressurizing mechanism, and a rolling mechanism, realizing an integrated operation from heating, injection to rolling, and improving the degree of automation. The design of the extrusion knife enables the equipment to adapt to cracks of different widths and depths, increasing the scope of application of the equipment. The equipment is moved by a traction device, which is simple and convenient to operate, reducing the need for manual operation and reducing labor intensity. The rolling mechanism can ensure that the newly injected asphalt is closely combined with the old road surface, while leveling the road surface, improving the quality and service life of the repaired road surface. 2. The introduction of the reset spring realizes the automatic reset function of the sealing plate, which can quickly seal the grouting hole after the asphalt injection is completed without manual intervention; the automatic reset function reduces the workload of operators and improves the operating efficiency of the entire repair process; the reset spring provides a stable restoring force for the first support rod, which helps to maintain the stability and reliability of the entire adjustment assembly during long-term use; 3. This method of use adopts mechanized construction, which can complete each step quickly and continuously, improve construction efficiency and shorten the repair cycle; mechanized construction reduces the need for manual operation and reduces labor costs; at the same time, by precisely controlling the parameters of each step, it can reduce material waste and reduce construction costs; mechanized construction reduces the risk of manual operation and improves construction safety; at the same time, the coordination and cooperation between the various steps also reduces the safety hazards caused by improper operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 is an overall structural diagram of the asphalt pavement repair equipment in the embodiment of the present application; Figure 2 is a side view of an asphalt pavement repair device in an embodiment of the present application; Figure 3 It is a display diagram of the cutting mechanism in the embodiment of the present application; Figure 4 This is a diagram showing the position of the seam pressing block in the embodiment of the present application; Figure 5 is a display diagram of the adjustment component in the embodiment of the present application; Figure 6 It is a diagram showing the relative positions of the caulking holes and the sealing plate in the embodiment of the present application.
[0033] Reference numerals: 100, traveling vehicle; 200, storage tank; 300, heating mechanism; 310, enclosure; 320, warm air furnace; 330, air supply pipe; 400, caulking mechanism; 410, screw conveyor; 420, discharge pipe; 510, extrusion knife; 520, force mechanism; 521, force cylinder; 522, lifting frame; 530, pressurizing mechanism; 540, rolling mechanism; 541, pressure frame; 542, pressure roller; 543, rolling cylinder; 600, blocking mechanism; 610, sealing plate; 620 , adjusting assembly; 621, first support rod; 622, second support rod; 623, third support rod; 624, return spring; 700, cutting mechanism; 710, fixed frame; 720, cutting knife; 721, grouting cavity; 722, grouting hole; 730, moving assembly; 740, side pressure block; 750, wedge block; 760, moving frame; 770, sliding cylinder; 800, pressing mechanism; 810, pressing block; 820, pressure assembly; 830, transverse frame; 840, adjusting cylinder; 900, feeding assembly. DETAILED DESCRIPTION
[0034] The following combination Figures 1 to 6 This application is described in further detail.
[0035] This embodiment discloses an asphalt pavement repairing device.
[0036] Reference Figures 1 to 6 The asphalt pavement repair equipment includes: a traveling vehicle 100 connected to a traction device, a storage tank 200 arranged on the traveling vehicle 100 for storing asphalt materials, a caulking mechanism 400 arranged on the traveling vehicle 100 and connected to the storage tank 200 for caulking, a heating mechanism 300 arranged on the traveling vehicle 100 for heating the pavement, an extrusion knife 510 arranged on the traveling vehicle 100, a force applying mechanism 520 arranged on the traveling vehicle 100 for adjusting the position of the extrusion knife 510, a rolling mechanism 540 arranged on the traveling vehicle 100 for rolling asphalt, and a heating mechanism 300 arranged on the traveling vehicle 100 for heating the pavement. The pressurizing mechanism 530 is connected, and a grouting cavity 721 is opened on the extrusion knife 510. The pressurizing mechanism 530 is connected, and a grouting hole 722 is opened on the side facing the road surface. When repairing cracks, the cracks and the area around the cracks are first cleaned, and then the traveling vehicle 100 is moved above the cracks, and the road surface and the cracks are heated by the heating mechanism 300. Then, asphalt is poured into the cracks through the grouting mechanism 400, and then the extrusion knife 510 is pressed into the road surface by the force applying mechanism 520, and then asphalt is poured into the road surface by the pressurizing mechanism 530, and then the extrusion knife 510 is pulled out, and the road surface is rolled by the rolling mechanism 540.
[0037] A heating wire is provided on the side wall of the storage tank 200, and a stirring blade and a stirring motor are provided on the storage tank 200 to disturb the asphalt and reduce the solidification of the asphalt.
[0038] The grouting mechanism 400 includes a screw conveyor 410 fixedly connected to the traveling vehicle 100 and located at the outlet of the storage tank 200. A discharge pipe 420 is fixedly connected to the outlet side of the screw conveyor 410. The discharge pipe 420 covers the outlet of the screw conveyor 410. One end of the discharge pipe 420 away from the screw conveyor 410 is slidably connected or connected to the discharge pipe 420 through a hose. A discharge hole is opened on the discharge pipe 420 for discharging asphalt into the cracks.
[0039] The traveling vehicle 100 is provided with a seam pressing mechanism 800, which includes a transverse frame 830 slidably connected to the traveling vehicle 100, the sliding frame is connected to the discharge pipe 420, and can drive the discharge pipe 420 to adjust its position; the traveling vehicle 100 is fixedly connected with an adjusting cylinder 840, the piston rod of which is connected to the sliding frame, and is used to drive the sliding frame to slide; the sliding frame is slidably connected with a seam pressing block 810 in a vertical direction, and the seam pressing block 810 is close to the crack to seal the crack; the sliding frame is provided with a pressure assembly 820, which includes a pressure cylinder, and the piston rod of which is connected to the seam pressing block 810, and is used to drive the seam pressing block 810 close to the crack.
[0040] The force-applying mechanism 520 includes a mounting frame fixedly connected to the traveling vehicle 100, a plurality of force-applying cylinders 521 are fixedly connected to the mounting frame, piston rods of the plurality of force-applying cylinders 521 are fixedly connected to a lifting frame 522, the lifting frame 522 is in a "mouth" shape, and the sliding frame is located inside the lifting frame 522, two groups of extrusion knives 510 are fixedly connected to the lifting frame 522, the two groups of extrusion knives 510 are respectively located on both sides of the sliding frame, and the extrusion knives 510 are wedge-shaped, the side walls of the two groups of extrusion knives 510 close to each other are inclined, and the cross-sectional area increases as the distance from the lifting frame 5 22 gradually decreases; the extrusion knife 510 can be inserted into the road surface, and a grouting cavity 721 is formed in the extrusion knife 510, and a grouting hole 722 is opened on the inclined side wall of the extrusion knife 510 close to the road surface, and the grouting hole 722 is communicated with the grouting cavity 721; the grouting cavity 721 of the extrusion knife 510 is connected to the pressurizing mechanism 530 through a hose, and the pressurizing mechanism 530 includes a pressurizing pump fixedly connected to the lifting frame 522, and the feeding end of the pressurizing pump is connected to the storage tank 200 through a hose, and the discharging end is communicated with the grouting cavity 721 of the extrusion knife 510 through a hose.
[0041] In order to reduce the asphalt blocking and grouting holes 722 on the road surface, a sliding hole is opened on the side wall of the extrusion knife 510, and the sliding hole is connected to the grouting hole 722. A sealing mechanism 600 is arranged on the extrusion knife 510, and the sealing mechanism 600 includes a sealing plate 610 slidingly connected in the sliding hole. An adjusting assembly 620 is arranged on the extrusion knife 510, and the adjusting assembly 620 includes a first strut 621 rotatably connected to the extrusion knife 510, one end of the first strut 621 extends to a side of the extrusion knife 510 away from the grouting hole 722, and a second strut 622 is fixedly connected to the rotating end of the first strut 621, and the axis of the second strut 622 coincides with the axis of the first strut 621. An accommodating groove is opened in the extrusion knife 510, and a third strut 623 is rotatably connected in the accommodating groove. The third strut 623 One end of the third support rod 623 abuts against one end of the second support rod 622 away from the first support rod 621, and is located on the side of the second support rod 622 away from the traveling vehicle 100, an abutting groove is provided at the abutting point between the second support rod 622 and the third support rod 623, and the third support rod 623 is partially located in the abutting groove, and a connecting rod is fixedly connected in the abutting groove; a sliding groove is provided on the side wall of the third support rod 623, and the sliding groove is provided along the length direction of the third support rod 623, and the connecting rod slides in the sliding groove; the other end of the third support rod 623 is close to the sealing plate 610, and a lifting groove is provided on the side wall of one end close to the sealing plate 610, and the lifting groove is provided along the length direction of the third support rod 623, and the axis of the lifting groove coincides with the axis of the sliding groove, a lifting rod is slidably connected in the lifting groove, and the lifting rod is fixedly connected to the sealing plate 610.
[0042] In order to facilitate the sealing plate 610 to always close the grouting hole 722 when not in use, a return spring 624 is fixedly connected to the outer wall of the extrusion knife 510, and the return spring 624 is connected to the first support rod 621. The return spring 624 pushes the first support rod 621 to tilt toward the direction close to the traveling vehicle 100.
[0043] In order to facilitate the extrusion knife 510 to enter the road surface, a heating pipe can be provided in the extrusion knife 510 to heat the extrusion knife 510 and reduce the solidification of asphalt in the grouting cavity 721.
[0044] In order to facilitate further closing of the cracks, a cutting mechanism 700 is provided on the traveling vehicle 100, and the cutting mechanism 700 includes a fixed frame 710 that slides on the traveling vehicle 100 in a vertical direction, and a sliding cylinder 770 is provided on the traveling vehicle 100, and the piston rod of the sliding cylinder 770 is connected to the fixed frame 710; a moving frame 760 is slidingly connected to the fixed frame 710, and a plurality of cutting knives 720 are fixedly connected to the moving frame 760, and the cutting knives 720 are wedge-shaped, and a moving assembly 730 is provided on the fixed frame 710, and the moving assembly 730 includes a moving cylinder, and the piston rod of the moving cylinder is connected to the moving frame 760.
[0045] In order to further close the crack, the cutting mechanism 700 also includes a side pressure block 740 slidably connected to the fixed frame 710, the sliding direction of the side pressure block 740 is inclined, and is inclined close to the crack and away from the traveling vehicle 100; a wedge block 750 is slidably connected to the fixed frame 710, and the side pressure block 740 and the wedge block 750 are integrally formed, and the wedge block 750 slides in an inclined downward direction, and one end abuts against the moving frame 760. A driving surface is formed on the moving frame 760, and the driving surface is inclined, and the end close to the traveling vehicle 100 is inclined toward the wedge block 750; as the sliding frame moves downward, the wedge block 750 is moved away from the cutting knife 720, and the wedge block 750 pushes the side pressure block 740 close to the ground.
[0046] In other embodiments, in order to facilitate the resetting of the side pressure block 740 , a restoring spring may be provided on the fixing frame 710 , and the restoring spring is connected to the side pressure block 740 , so that the side pressure block 740 remains separated from the ground.
[0047] The rolling mechanism 540 includes two pressure frames 541 that are slidably connected to the traveling vehicle 100 in the vertical direction. The two pressure frames 541 are respectively located at the two ends of the traveling vehicle 100. A pressure roller 542 is rotatably connected to the pressure frame 541. The pressure roller 542 can contact the road surface for rolling. A rolling cylinder 543 is fixedly connected to the traveling vehicle 100. The rolling cylinder 543 is vertically arranged, and the piston rod of the rolling cylinder 543 is connected to the pressure frame 541.
[0048] The heating mechanism 300 includes an enclosure 310 slidably connected to the traveling vehicle 100 in a vertical direction, the enclosure 310 surrounds the above structures to form a heating space, a warm air furnace 320 and an air supply pipe 330 are provided on the traveling vehicle 100, and the air supply pipe 330 is connected to the heating space; a heating cylinder is provided on the traveling vehicle 100, and a piston rod of the heating cylinder is connected to the enclosure 310, so as to drive the enclosure 310 to slide.
[0049] In order to replenish the entire road surface, a replenishing assembly 900 may be provided on the traveling vehicle 100. The replenishing assembly 900 includes a replenishing pipe connected to the storage tank 200. The replenishing pipe is connected to the storage tank 200 through a hose, and a filling pump is provided at the connection.
[0050] This embodiment also discloses a method for using the asphalt pavement repair equipment.
[0051] The method for using the asphalt pavement repair equipment includes the following steps: Cleaning cracks: Clean the cracks and the area around them, use a blower or sweeper to clean the debris on the road surface, and remove the debris from the cracks; Preheating: The traveling vehicle 100 is moved to the upper side of the crack, and the enclosure 310 is driven downward by the heating cylinder, so that the enclosure 310 contacts the ground and forms a heating space, and then the heating coil is started to preheat the road surface at the crack; Filling the cracks: Start the screw conveyor 410, which conveys the asphalt to the discharge pipe 420, and then the asphalt is poured into the cracks through the discharge pipe 420; Formal heating: Use heating coils to formally heat the cracks and pavement; Lateral pressure: The mobile cylinder drives the mobile frame 760 to slide, and the mobile frame 760 drives the cutting knife 720 to slide. The mobile frame 760 squeezes the lateral pressure block 740 through the wedge block 750, and the lateral pressure block 740 squeezes the asphalt on both sides of the crack, so that the crack shrinks until the cutting knife 720 sinks into the road surface; Seam compression: When the side compression step is performed, the adjusting cylinder 840 is used to drive the sliding frame to move above the crack, and then the pressure cylinder is used to drive the sliding frame to slide, and the sliding frame drives the seam compression block 810 to seal the crack; Cover: The asphalt is conveyed to the discharge pipe 420 by the screw conveyor 410, and then the asphalt is laid on the surface of the road surface and cracks through the discharge pipe 420; Extrusion: The force cylinder 521 is used to drive the extrusion knife 510 close to the ground. The extrusion knife 510 is inserted into the road surface and moves downward. The first support rod 621 contacts the ground and rotates relatively. The sealing plate 610 opens the grouting hole 722 through the transmission of the second support rod 622 and the third support rod 623. Then, asphalt is poured into the extrusion knife 510 by a pressure pump. The asphalt passes through the grouting hole 722 to fill the space between the extrusion knife 510 and the crack tightly. Rolling: The rolling cylinder 543 is used to drive the test piece close to the road surface, and then the tractor is used to drive the traveling vehicle 100 to move, so that the pressure roller 542 rolls and compacts the road surface.
[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An asphalt pavement repair device, characterized in that: include: A traveling vehicle (100) connected to the traction device; A storage tank (200), arranged on the traveling vehicle (100), for storing new asphalt; A heating mechanism (300) is arranged on the traveling vehicle (100) and is used to heat the road surface at the crack; A crack filling mechanism (400) is arranged on the traveling vehicle (100) and is used to fill asphalt into the cracks; The extrusion knife (510) is wedge-shaped, with one end having a smaller cross-sectional area inserted into the asphalt pavement and located on both sides of the crack, with a crack filling cavity (721) formed therein, and a crack filling hole (722) communicating with the crack filling cavity (721) formed at the end inserted into the asphalt pavement; A force applying mechanism (520) is disposed on the traveling vehicle (100) and is used to drive the extrusion knife (510) to move closer to or farther from a road surface; A pressurizing mechanism (530) is disposed on the traveling vehicle (100), connected to the material storage tank (200) and the crack filling cavity (721), and is used to pressurize the crack filling cavity (721); The rolling mechanism (540) is arranged on the traveling vehicle (100) and is used to roll cracks on the asphalt pavement.
2. The asphalt pavement repair equipment according to claim 1, characterized in that: A heating tube is provided inside the extrusion knife (510) for heating the extrusion knife (510).
3. The asphalt pavement repairing equipment according to claim 2, characterized in that: The extrusion knife (510) is provided with a blocking mechanism (600), and the blocking mechanism (600) comprises: A sealing plate (610) is slidably disposed on the extrusion knife (510) and is used to seal or open the caulking hole (722); An adjustment component (620) is arranged on the extrusion knife (510) and is used to adjust the sliding movement of the sealing plate (610).
4. The asphalt pavement repairing equipment according to claim 3, characterized in that: The adjustment component (620) comprises: A first support rod (621) rotatably disposed on the extrusion knife (510); A second support rod (622) connected to the rotating end of the first support rod (621); The third support rod (623) is rotatably disposed on the extrusion knife (510) and abuts against the second support rod (622). The third support rod (623) is connected to the sealing plate (610). As the second support rod (622) is pressed downward, the third support rod (623) is driven to rotate, causing the sealing plate (610) to slide and open the caulking hole (722).
5. The asphalt pavement repairing equipment according to claim 4, characterized in that: The adjustment component (620) further includes: A return spring (624) is arranged on the extrusion knife (510), connected to the first support rod (621), and is used to drive the first support rod (621) to rotate.
6. The asphalt pavement repairing equipment according to any one of claims 1 to 5, characterized in that: The traveling vehicle (100) is also provided with a cutting mechanism (700), and the cutting mechanism (700) comprises: A fixing frame (710) is arranged on the traveling vehicle (100); A cutting knife (720) is slidably disposed on the fixing frame (710); The moving assembly (730) is disposed on the fixing frame (710) and is used to drive the cutting knife (720) to cut both sides of the crack.
7. The asphalt pavement repairing equipment according to claim 6, characterized in that: The moving assembly (730) comprises a moving cylinder, a piston rod of which is connected to the cutting knife (720).
8. The asphalt pavement repairing equipment according to claim 6, characterized in that: The cutting mechanism (700) further comprises: A side pressure block (740) is slidably disposed on the fixing frame (710) and is close to the crack and protrudes from the cutting knife (720), and one end away from the fixing frame (710) is inclined toward the crack; The wedge block (750) slides on the fixing frame (710), abuts against one end of the side pressure block (740) close to the fixing frame (710), and abuts against the side wall of the cutting knife (720). As the cutting knife (720) moves downward, the wedge block (750) is driven to move and squeeze the side pressure block (740) close to the crack.
9. The asphalt pavement repairing equipment according to claim 8, characterized in that: The traveling vehicle (100) is provided with a seam pressing mechanism (800), and the seam pressing mechanism (800) comprises: A crack-pressing block (810) is slidably disposed on the traveling vehicle (100) and is used to seal cracks; The pressure-applying assembly (820) is disposed on the traveling vehicle (100), connected to the seam-pressing block (810), and is used to drive the seam-pressing block (810) to slide.
10. A method for using the asphalt pavement repair equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: Cleaning the cracks: Clean the cracks and the areas around them; Preheating: The traveling vehicle (100) is moved to the upper side of the crack, and the heating mechanism (300) is used to preheat the road surface at the crack; Filling: Filling the cracks with asphalt using a filling mechanism (400); Formal heating: using a heating mechanism (300) to formally heat the cracks and the road surface; Lateral pressure: the moving assembly (730) drives the cutting blade (720) to slide, and the cutting blade (720) presses the lateral pressure block (740) through the wedge block (750). The lateral pressure block (740) presses the asphalt on both sides of the crack, causing the crack to shrink until the cutting blade (720) sinks into the road surface; Seam pressing: when the side pressing step is performed, the pressure applying assembly (820) drives the seam pressing block (810) to seal the cracks; Cover: Surface asphalt is laid on the road surface and cracks using a caulking mechanism (400); Extrusion: inserting the extrusion knife (510) on the road surface, and then using the pressurizing mechanism (530) to inject the cracks, so that the space between the extrusion knife (510) and the cracks is densely filled; Rolling: The road surface is compacted by rolling using a rolling mechanism (540).