A crack repair device for highway construction and its repair method

Abstract

The present invention relates to the technical field of highway construction. On the one hand, it discloses a crack repair device for highway construction, comprising a mobile base; a material barrel fixedly mounted above the mobile base; a stirring shaft and a stirring frame rotatably connected to the material barrel, the stirring frame being provided with a plurality of through holes, and a heating ring being installed through the through holes; a driving assembly connected to the stirring shaft; an asphalt pump and a spray head, the inlet end of the asphalt pump being connected to the material barrel via a first connecting pipe, and the outlet end of the asphalt pump being connected to the spray head via a second connecting pipe; a power supply and a control unit, the power supply, the heating ring, the asphalt pump, and the driving assembly being electrically connected to the control unit respectively. On the other hand, the present invention also discloses a repair method based on the above-mentioned device. The present invention can improve the heating efficiency of the heating ring in the material barrel in the crack repair device, and avoid the phenomena of dry burning and slow heat conduction.

Description

Technical Field

[0001] The present invention relates to the technical field of highway construction, in particular to a crack repairing device and a repairing method for highway construction. Background Art

[0002] During highway operation, numerous cracks develop on the road surface due to factors such as weather and traffic. If these cracks are not repaired promptly, they will continue to grow and damage the roadbed. Consequently, numerous crack repair devices have emerged on the market. To prevent asphalt from solidifying during use, existing crack repair devices are equipped with a heating element in the barrel.

[0003] CN212895846U discloses a novel crack repair device for asphalt highway construction. In this patent, a stirring shaft arranged in a vertical direction is rotatably connected inside an asphalt barrel. A number of stirring rods are staggered on the outer surface of the stirring shaft. The stirring rods include a heating tube, a fixed tube and a heat conduction tube that are fixedly connected in sequence from the inside to the outside. However, during actual use, as the asphalt is used, the liquid level in the asphalt barrel will gradually decrease, resulting in the stirring rods above the asphalt liquid surface being unable to contact the asphalt, resulting in continuous dry burning, and accompanied by partial heat loss, which in turn causes reduced heating efficiency.

[0004] CN214301183U discloses an asphalt pavement crack repair device for highway construction. The patent has a heater fixedly connected to a placement barrel. The heater is located at the bottom of the placement barrel. This heating method requires a stirring process, and heat is gradually transferred from the bottom to the top. However, the heat conduction process is slow. Since the up and down stirring process cannot be achieved, it is easy for the upper asphalt to have a low temperature and cause agglomeration.

[0005] In view of this, how to change the current situation in which the heating efficiency of the material barrel of the crack repair device in the prior art is low, dry burning or slow heat conduction is prone to occur has become a technical problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0006] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a crack repair device and a repair method for highway construction, so as to improve the heating efficiency of the heating component in the material barrel of the crack repair device in the prior art and avoid dry burning and slow heat conduction.

[0007] In order to achieve the above-mentioned object, the present invention provides a crack repair device for highway construction, comprising:

[0008] Mobile base;

[0009] A material barrel fixedly mounted above the mobile base;

[0010] A stirring shaft and a stirring frame are rotatably connected to the barrel, the stirring shaft is arranged in a horizontal direction and is located on the axis of the barrel, one end of the stirring shaft is fixedly connected to the stirring frame, and the other end of the stirring frame extends outward in a spiral shape, and a plurality of through holes are provided on the stirring frame, and a heating ring is installed through the through holes;

[0011] A drive assembly connected to the stirring shaft;

[0012] An asphalt pump and a spray head, wherein the inlet end of the asphalt pump is connected to the material barrel through a first connecting pipe, and the outlet end of the asphalt pump is connected to the spray head through a second connecting pipe;

[0013] A power supply and a control unit, wherein the power supply, the heating ring, the asphalt pump and the driving assembly are electrically connected to the control unit respectively.

[0014] Furthermore, a support plate is fixedly provided on the inner side wall of the stirring frame, and the support plate is provided on one side of the through hole close to the other end of the stirring frame, and one end of the support plate away from the inner side wall of the stirring frame is hingedly connected to one end of the spoiler, and a torsion spring is provided between the spoiler and the support plate, and the support plate, the spoiler, the torsion spring and the through hole are provided in a one-to-one correspondence;

[0015] When the stirring frame rotates along its spiral direction, the baffle flips toward the through hole to block a portion of the asphalt from flowing from the through hole. When the stirring frame is stationary or rotates in the opposite direction of its spiral, the baffle is arranged perpendicular to the inner side wall of the stirring frame to allow a portion of the asphalt to flow from the through hole.

[0016] Furthermore, there are multiple groups of through holes, each group of through holes is located on the same plane perpendicular to the stirring shaft, multiple groups of through holes are arranged at intervals along the length direction of the stirring shaft, and drainage grooves are arranged between the multiple groups of through holes. The drainage grooves are arranged perpendicular to the stirring shaft, and the drainage grooves are located on the inner side wall of the stirring frame.

[0017] Furthermore, it also includes:

[0018] Two sliding rods slidably connected to the movable base in a vertical direction;

[0019] A compacting shaft with two ends respectively mounted on the lower ends of the two slide bars, wherein the compacting shaft is rotatably connected to a compacting wheel;

[0020] a fixed plate located below the movable base and fixedly connected to the middle portion of the slide rod, a compression spring sleeved around the middle portion of the slide rod, the ends of the compression spring being respectively connected to the fixed plate and the movable base, a baffle fixedly mounted on the upper end of the slide rod, and a magnetic member fixedly mounted on the upper surface of the baffle; and

[0021] A support frame is installed above the sliding rod in a one-to-one correspondence, and an electromagnet electrically connected to the control unit is installed on the support frame. The control unit is used to control the electromagnet to intermittently attract the magnetic member.

[0022] Furthermore, the driving assembly includes:

[0023] a first drive motor fixedly mounted above the mobile base, the first drive motor being electrically connected to the control unit;

[0024] a first bevel gear drivingly connected to the output shaft of the first drive motor; and

[0025] a second bevel gear meshing with the first bevel gear, wherein the transmission ratio between the first bevel gear and the second bevel gear is greater than that between the first bevel gear and the second bevel gear, and the second bevel gear is coaxially connected to the stirring shaft;

[0026] The asphalt pump is a screw pump or a gear pump.

[0027] Furthermore, a camera and the spray head are installed on the lower surface of the mobile base, the camera is electrically connected to the control unit, the camera is used to obtain the spraying image of the spray head and the compaction image of the compaction wheel, and the second connecting pipe passes through the mobile base and is connected to the spray head;

[0028] A second driving motor electrically connected to the control unit is mounted on the mobile base, an output shaft of the second motor passes through the mobile base, a brush is rotatably mounted on the lower surface of the mobile base, and the output shaft of the second motor is in transmission connection with the brush;

[0029] A handle is installed on the upper surface of the mobile base, and a display screen electrically connected to the control unit is installed on the handle. The display screen is used to display the spraying image of the spray head and the compacting image of the compacting wheel. The compacting wheel, spray head and brush are located on the same straight line and are arranged in sequence along the direction close to the handle.

[0030] Furthermore, a sealing cover is installed on the top of the barrel, a plurality of universal wheels are installed on the lower surface of the movable base, and a valve is provided on the first connecting pipe.

[0031] Compared with the prior art, the present invention has at least the following advantages:

[0032] During use, add the asphalt of the business format into the material barrel. The control unit controls the driving component and the heating ring to be in an operating state. The driving component drives the stirring frame to rotate along its spiral direction. The asphalt will gradually be drawn into the inside of the stirring frame and continuously flow out through the through holes. The heating ring can provide heat for the asphalt. The asphalt is heated by the heating ring during the process of flowing through the through holes, which can effectively prevent the asphalt from solidifying. During the rotation of the stirring frame, the asphalt can be drawn into its inside, which can ensure that after the liquid level of the asphalt in the material barrel drops, it can still contact the heating rings at various parts of the stirring frame, improving the heating efficiency and avoiding the phenomenon of dry burning of some heating rings. Compared with the design of the traditional stirring component, the present invention can simultaneously turn the asphalt in the material barrel up and down and horizontally, and the heat distribution of the asphalt in the material barrel 2 is more uniform, which can effectively prevent the asphalt from caking.

[0033] On the other hand, the present invention provides a repair method based on the above-mentioned repair device, including the following steps:

[0034] Add the liquid asphalt into the said material barrel;

[0035] Align the spraying head with the crack on the road surface. The control unit turns on the asphalt pump, and the asphalt enters the crack through the material barrel, the first connecting pipe, the asphalt pump, the second connecting pipe and the spraying head in sequence;

[0036] After the asphalt fills the crack, use the compaction wheel to compact the upper surface of the crack.

[0037] Furthermore, it also includes the following steps:

[0038] When the liquid level of the asphalt in the material barrel is higher than or equal to the height of the stirring shaft, the control unit turns on the driving component and drives the stirring frame to rotate along its spiral direction, and the control unit controls the heating ring to heat the asphalt;

[0039] When the liquid level of the asphalt in the material barrel is lower than the height of the stirring shaft, the control unit turns on the driving component to drive the stirring frame to rotate reciprocally around the stirring shaft. The number of turns of the stirring frame in a single rotation is not less than its spiral turns, and the control unit controls the heating ring to heat the asphalt.

[0040] The repair method in the present invention has the same advantages as the above-mentioned crack repair device for road construction compared with the prior art, and will not be elaborated here. Description of the Drawings

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0042] Figure 1 Schematic three-dimensional structure diagram of the crack repair device for highway construction of the present invention;

[0043] Figure 2 Schematic cross-sectional view of the material barrel and the stirring frame of the present invention during assembly;

[0044] Figure 3 For the present invention Figure 2 Partial enlarged view of area A in;

[0045] Figure 4 Another three-dimensional structure diagram of the crack repair device for highway construction of the present invention;

[0046] Figure 5 For the present invention Figure 4 Partial enlarged view of area B in;

[0047] Figure 6 Another three-dimensional structure diagram of the crack repair device for highway construction of the present invention.

[0048] Reference numerals: 1, mobile base; 2, material barrel; 3, stirring shaft; 4, stirring frame; 5, heating ring; 6, first connecting pipe; 7, asphalt pump; 8, second connecting pipe; 9, spraying head; 10, support plate; 11, flow blocking plate; 12, drainage groove; 13, sliding rod; 14, compaction shaft; 15, compaction wheel; 16, fixing plate; 17, compression spring; 18, baffle; 19, magnetic member; 20, support frame; 21, electromagnet; 22, first driving motor; 23, first bevel gear; 24, second bevel gear; 25, camera; 26, second driving motor; 27, brush; 28, handle; 29, display screen; 30, sealing cover; 31, universal wheel; 32, valve. Detailed implementation manners

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] Reference Figure 1 On the one hand, the present invention provides a crack repair device for highway construction, including a mobile base 1, a material barrel 2, a stirring shaft 3, a stirring frame 4, a driving assembly, an asphalt pump 7, a spray head 9, a power supply (not shown in the figure) and a control unit (not shown in the figure).

[0052] The movable base 1 has two barrel brackets fixedly mounted on its upper surface. A barrel 2 is fixedly mounted on the brackets, and the barrel brackets are arranged at both ends of the barrel 2 to support the barrel 2. A stirring shaft 3 and a stirring frame 4 are rotatably connected to the barrel 2. The stirring shaft 3 is arranged horizontally and is located on the axis of the barrel 2. The stirring frame 4 has a spiral cross-section perpendicular to the axis of the barrel 2. One end of the stirring frame 4 is fixedly connected to the stirring shaft 3, and the other end of the stirring frame 4 extends outward in a spiral shape. The other end of the stirring frame 4 is slidably connected to the inner wall of the barrel 2. When the stirring frame 4 rotates, the other end of the stirring frame 4 can scrape off asphalt adhered to the inner wall of the barrel 2. The stirring frame 4 is provided with multiple through-holes, and heating rings 5 are installed in the through-holes. The heating rings 5 are arranged through the through-holes. The drive assembly is connected to the stirring shaft 3 for driving the stirring frame 4 to rotate along the axis of the stirring shaft 3. The inlet of the asphalt pump 7 is connected to the bottom of the barrel 2 via a first connecting pipe 6, and the outlet of the asphalt pump 7 is connected to the spray head 9 via a second connecting pipe 8. The asphalt pump 7 is preferably a screw pump or a gear pump. The asphalt pump 7 provides power for the asphalt spraying. Asphalt is sprayed sequentially through the barrel 2, the first connecting pipe 6, the asphalt pump 7, the second connecting pipe 8, and the spray head 9, thereby filling and repairing cracks in the road surface. The power supply can be an external power supply or a battery to provide power for the operation of the heating ring 5, the asphalt pump 7, and the drive assembly. The control unit can be a PLC device or a computer. The power supply, heating ring 5, the asphalt pump 7, and the drive assembly are each electrically connected to the control unit. The control unit is used to control the operation or stopping of the heating ring 5, the asphalt pump 7, and the drive assembly.

[0053] During use, liquid asphalt is added into the material barrel 2, and the control unit controls the driving assembly and the heating ring 5 to be in an operating state. The driving assembly drives the stirring frame 4 to rotate along its spiral direction. The asphalt will gradually be drawn into the inside of the stirring frame 4 and continuously flow out through the through holes. The heating ring 5 can provide heat, and the asphalt is heated by the heating ring 5 during the flowing process through the through holes, which can effectively prevent the asphalt from solidifying. During the rotation of the stirring frame 4, the asphalt can be drawn into its inside, which can ensure that after the liquid level of the asphalt in the material barrel 2 drops, it can still be in contact with the heating rings 5 at various positions on the stirring frame 4, improving the heating efficiency and avoiding the phenomenon of dry burning of some heating rings 5. Compared with the design of the traditional stirring assembly, the present invention can simultaneously turn the asphalt in the material barrel 2 up and down and horizontally, and the heat distribution of the asphalt in the material barrel 2 is more uniform, which can effectively prevent the asphalt from caking. Since the other end of the stirring frame 4 is slidably connected to the inner side wall of the material barrel 2, when the stirring frame 4 rotates, a relative rotation occurs between the stirring frame 4 and the material barrel 2, and the other end of the stirring frame 4 can scrape off the asphalt adhering to the inner side wall of the material barrel 2, avoiding the asphalt from adhering to the inner side wall of the material barrel 2.

[0054] Preferably, referring to Figures 2 - 3 , a support plate 10 is fixedly arranged on the inner side wall of the stirring frame 4. The support plate 10 is perpendicularly and fixedly connected to the inner side wall of the stirring frame 4. The support plate 10 is arranged on one side of the through hole close to the other end of the stirring frame 4. One end of the support plate 10 far from the inner side wall of the stirring frame 4 is hinged with a flow blocking plate 11. A torsion spring (not shown in the figure) is arranged between the flow blocking plate 11 and the support plate 10. The support plate 10, the flow blocking plate 11, the torsion spring and the through hole are arranged in one-to-one correspondence. When the stirring frame 4 and the material barrel 2 are relatively stationary, both the support plate 10 and the flow blocking plate 11 are perpendicularly arranged with respect to the inner side wall of the stirring frame 4.

[0055] When the stirring frame 4 rotates along its spiral direction, under the action of inertia and the superposition of the force of the asphalt, the baffle 11 can turn towards the through hole direction to block some of the asphalt involved in the interior of the stirring frame 4 from flowing out through the through hole, so as to enhance the contact between the heating ring 5 inside the stirring frame 4 and the asphalt. It should be noted that during the rotation of the stirring frame 4, the linear velocity of the baffle 11 arranged on the periphery of the stirring frame 4 is greater than that of the baffle 11 arranged on the inner side of the stirring frame 4 during rotation, and it is easier to turn over, which is conducive to involving more asphalt into the interior of the stirring frame 4, making more asphalt contact with the heating ring 5 inside the stirring frame 4. After the asphalt contacts the heating ring 5 inside the stirring frame 4, it will flow out through the through hole and contact the heating ring 5 on the periphery of the stirring frame 4 to realize the multiple contact process between the asphalt and the heating ring 5, making the stirring process and the heating process more uniform. When the stirring frame 4 is stationary or rotates along its spiral reverse direction, the baffle 11 is arranged perpendicular to the inner side wall of the stirring frame 4 under the action of the torsion spring, so that the asphalt flows from the through hole. When the stirring frame 4 rotates along its spiral reverse direction, it can make the asphalt flow out of the stirring frame 4, which is applicable to the working state when the asphalt liquid level in the material bucket 2 is lower than the height of the stirring shaft.

[0056] Specifically, there are multiple groups of through holes. Each group of through holes is located in the same plane perpendicular to the stirring shaft 3. The multiple groups of through holes are arranged at intervals along the length direction of the stirring shaft 3. A drainage groove 12 is arranged between the multiple groups of through holes. The drainage groove 12 is arranged perpendicular to the stirring shaft 3 and is located on the inner side wall of the stirring frame 4. When the stirring frame 4 rotates along its spiral direction, a part of the asphalt can be gradually involved into the interior of the stirring frame 4 through the drainage groove 12, thereby reducing the possibility of flowing out through the through hole, ensuring that more asphalt is involved into the interior of the stirring frame 4, and improving the use efficiency of the heating ring 5 inside the stirring frame 4.

[0057] Preferably, referring to Figures 4 - 6 , in order to compact the asphalt at the crack after spraying the asphalt on the crack, the present invention further includes a sliding rod 13, a compaction shaft 14, a compaction wheel 15, a fixing plate 16, a compression spring 17, a magnetic member 19, a support frame 20 and an electromagnet 21.

[0058] Among them, there are two slide bars 13, which pass through the mobile base 1 in the vertical direction and are slidably connected to the mobile base 1. The lower ends of the two slide bars 13 are connected to the two ends of the compacting shaft 14. The compacting wheel 15 is rotatably connected to the circumference of the compacting shaft 14. The outer wall of the compacting wheel 15 is frictionally connected to the road surface to compact the asphalt sprayed on the cracks. The fixed plate 16 is located below the mobile base 1, and the fixed plate 16 is fixedly connected to the middle of the slide bar 13. The compression spring 17 is sleeved on the circumference of the middle of the slide bar 13. The two ends of the compression spring 17 are respectively connected to the fixed plate 16 and the mobile base 1. Under the action of the compression spring 17, the fixed plate 16 has a tendency to move downward, which can ensure that the compacting wheel 15 is in contact with the road surface. A baffle 18 is fixedly mounted on the upper end of the slide bar 13, and a magnetic member 19 is fixedly mounted on the upper surface of the baffle 18. Support frames 20 are mounted one-to-one above the slide bars 13. An electromagnet 21 electrically connected to a control unit is mounted on the support frame 20. The control unit is used to control the electromagnet 21 to intermittently attract the magnetic member 19. When the control unit controls the electromagnet 21 to attract the magnetic member 19, it can overcome the elastic force of the compression spring 17 and drive the slide bar 13 to slide upward, thereby positioning the compacting wheel 15 above the road. The control unit then controls the electromagnet 21 to release the magnetic member 19, and the slide bar 13 slides downward under the elastic force of the compression spring 17, causing the compacting wheel 15 to strike the road surface. By rapidly cycling the above operations, the asphalt in cracks on the road surface can be vibrated and compacted, achieving a better compaction effect than the traditional compaction process.

[0059] Specifically, refer again to Figure 1 The drive assembly includes a first drive motor 22, a first bevel gear 23, and a second bevel gear 24. A motor bracket is fixedly installed above the mobile base 1, and the first drive motor 22 is fixedly installed on the motor bracket. The first drive motor 22 is electrically connected to the control unit. The first bevel gear 23 is in driving connection with the output shaft of the first drive motor 22. The end of the stirring shaft 3 close to the first drive motor 22 passes through the barrel 2. The second bevel gear 24 is in driving connection with one end of the stirring shaft 3. The first bevel gear 23 and the second bevel gear 24 are meshed. The transmission ratio of the first bevel gear 23 to the second bevel gear 24 is greater than 1, which plays a role in increasing the pitch torque.

[0060] Reference Figure 6 A camera 25 and a spray head 9 are installed on the lower surface of the mobile base 1. The camera 25 is electrically connected to the control unit. The camera 25 is used to obtain the spraying image of the spray head 9 and the compaction image of the compaction wheel 15. The second connecting pipe 8 passes through the mobile base 1 and is connected to the spray head 9;

[0061] A second driving motor 26 is installed on the moving base 1. The second driving motor 26 is electrically connected to the control unit. The output shaft of the second driving motor 26 penetrates through the moving base 1. A brush 27 is rotatably installed on the lower surface of the moving base 1. The output shaft of the second driving motor 26 is in transmission connection with the brush 27;

[0062] A handle 28 is installed on the upper surface of the moving base 1. A display screen 29 electrically connected to the control unit is installed on the handle 28. The spraying image of the spraying head 9 and the compaction image of the compaction wheel 15 are displayed on the display screen 29. The compaction wheel 15, the spraying head 9 and the brush 27 are located on the same straight line and are arranged in sequence along the direction close to the handle 28.

[0063] Optionally, referring to Figure 1 , a sealing cover 30 is installed on the top of the material barrel 2. A plurality of universal wheels 31 are installed on the lower surface of the moving base 1. A valve 32 is arranged on the first connecting pipe 6.

[0064] On the other hand, the present invention provides a repair method based on the above-mentioned crack repair device for road construction, including the following steps: adding liquid asphalt into the material barrel 2; aligning the spraying head 9 with the crack of the road, and the control unit turning on the asphalt pump 7, and the asphalt enters the crack through the material barrel 2, the asphalt pump 7 and the spraying head 9 in sequence; after the asphalt fills the crack, using the compaction wheel 15 to compact the upper surface of the crack. Through the above steps, the repair and compaction process of the road surface crack can be realized.

[0065] Preferably, the repair method further includes the following steps: when the liquid level of the asphalt in the material barrel is higher than or equal to the height of the stirring shaft 3, the control unit turns on the driving component to drive the stirring frame 4 to rotate along its spiral direction, and the control unit controls the heating ring 5 to heat the asphalt.

[0066] When the liquid level of the asphalt in the material barrel is lower than the height of the stirring shaft 3, the control unit turns on the driving component to drive the stirring frame 4 to rotate reciprocally around the stirring shaft 3. The number of turns of the stirring frame 4 in a single rotation is not less than its spiral turns, and the control unit controls the heating ring 5 to heat the asphalt. When the liquid level of the asphalt in the material barrel is lower than the height of the stirring shaft 3, the control unit turns on the driving component to drive the stirring frame 4 to rotate along its spiral direction. In order to ensure that the asphalt contacts the heating ring 5 inside the stirring frame 4, the control unit turns on the driving component to drive the stirring frame 4 to rotate along the opposite direction of its spiral, which can realize the process of the asphalt flowing out of the stirring frame and avoid the asphalt staying on the stirring frame when the liquid level is too low.

[0067] Preferably, after the asphalt fills the crack and the compaction wheel 15 is used to compact the upper surface of the crack, it further includes the control unit controlling the electromagnet 21 to attract the magnetic part 19 intermittently; so that the compaction wheel 15 vibrates and compacts on the upper surface of the crack.

[0068] The repair method described in the present invention has the same advantages as the above-mentioned crack repair device for road construction compared with the prior art, and will not be elaborated here.

[0069] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0070] The embodiments described above are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A crack repair device for highway construction, characterized in that, include: Mobile base (1); A material barrel (2) fixedly mounted above the mobile base (1); A stirring shaft (3) and a stirring frame (4) are rotatably connected in the material barrel (2), the stirring shaft (3) is arranged in a horizontal direction and is located on the axis of the material barrel (2), one end of the stirring shaft (3) and the stirring frame (4) are fixedly connected, and the other end of the stirring frame (4) extends outward in a spiral shape, and a plurality of through holes are provided on the stirring frame (4), and a heating ring (5) is installed through the through holes; a drive assembly in transmission connection with the stirring shaft (3); an asphalt pump (7) and a spray head (9), wherein the inlet end of the asphalt pump (7) is connected to the material barrel (2) via a first connecting pipe (6), and the outlet end of the asphalt pump (7) is connected to the spray head (9) via a second connecting pipe (8); A power supply and a control unit, wherein the power supply, the heating ring (5), the asphalt pump (7) and the driving assembly are electrically connected to the control unit respectively; A support plate (10) is fixedly provided on the inner side wall of the stirring frame (4), and the support plate (10) is provided on one side of the through hole close to the other end of the stirring frame (4); one end of the support plate (10) away from the inner side wall of the stirring frame (4) is hingedly connected to one end of a baffle (11); a torsion spring is provided between the baffle (11) and the support plate (10), and the support plate (10), the baffle (11), the torsion spring and the through hole are provided in a one-to-one correspondence; When the stirring frame (4) rotates in its spiral direction, the baffle (11) flips toward the through hole to block a portion of the asphalt from flowing from the through hole; when the stirring frame (4) is stationary or rotates in the opposite direction of its spiral, the baffle (11) is arranged perpendicular to the inner side wall of the stirring frame (4) to allow a portion of the asphalt to flow from the through hole.

2. The crack repair device for highway construction according to claim 1, wherein There are multiple groups of through holes, each group of through holes is located on the same plane perpendicular to the stirring shaft (3), the multiple groups of through holes are spaced apart along the length direction of the stirring shaft (3), and drainage grooves (12) are provided between the multiple groups of through holes. The drainage grooves (12) are arranged perpendicular to the stirring shaft (3), and the drainage grooves (12) are located on the inner side wall of the stirring frame (4).

3. The crack repair device for highway construction according to any one of claims 1 to 2, characterized in that, Also includes: Two sliding rods (13) slidably connected to the movable base (1) in a vertical direction; A compacting shaft (14) with two ends respectively mounted on the lower ends of the two slide bars (13), and a compacting wheel (15) is rotatably connected to the circumference of the compacting shaft (14); A fixed plate (16) is located below the movable base (1) and is fixedly connected to the middle of the slide bar (13); a compression spring (17) is sleeved around the middle of the slide bar (13); two ends of the compression spring (17) are respectively connected to the fixed plate (16) and the movable base (1); a baffle (18) is fixedly mounted on the upper end of the slide bar (13); and a magnetic member (19) is fixedly mounted on the upper surface of the baffle (18); and A support frame (20) is mounted one-to-one above the slide bar (13), and an electromagnet (21) electrically connected to the control unit is mounted on the support frame (20). The control unit is used to control the electromagnet (21) to intermittently attract the magnetic member (19).

4. The crack repair device for highway construction according to claim 3, wherein, The drive assembly includes: a first drive motor (22) fixedly mounted above the mobile base (1), the first drive motor (22) being electrically connected to a control unit; a first bevel gear (23) drivingly connected to the output shaft of the first drive motor (22); and a second bevel gear (24) meshing with the first bevel gear (23), wherein a transmission ratio between the first bevel gear (23) and the second bevel gear (24) is greater than 1, and the second bevel gear (24) is coaxially connected to the stirring shaft (3); The asphalt pump (7) is a screw pump or a gear pump.

5. The crack repair device for highway construction according to claim 3, characterized in that, A camera (25) and the spray head (9) are mounted on the lower surface of the mobile base (1); the camera (25) is electrically connected to a control unit; the camera (25) is used to obtain a spraying image of the spray head (9) and a compaction image of the compaction wheel (15); the second connecting pipe (8) passes through the mobile base (1) and is connected to the spray head (9); A second drive motor (26) electrically connected to the control unit is installed on the mobile base (1); an output shaft of the second drive motor (26) is arranged to pass through the mobile base (1); a brush (27) is rotatably installed on the lower surface of the mobile base (1); and the output shaft of the second drive motor (26) is transmission-connected to the brush (27); A handle (28) is installed on the upper surface of the mobile base (1), and a display screen (29) electrically connected to the control unit is installed on the handle (28). The display screen (29) is used to display the spraying image of the spray head (9) and the compacting image of the compacting wheel (15). The compacting wheel (15), the spray head (9) and the brush (27) are located on the same straight line and are arranged in sequence in a direction close to the handle (28).

6. The crack repair device for highway construction according to claim 3, wherein, A sealing cover (30) is installed on the top of the material barrel (2), a plurality of universal wheels (31) are installed on the lower surface of the mobile base (1), and a valve (32) is provided on the first connecting pipe (6).

7. A repair method for a crack repair device for highway construction according to any one of claims 3 to 6, characterized in that, The following steps are involved: Adding liquid asphalt into the barrel (2); Aim the spray head (9) at the cracks on the road surface, the control unit starts the asphalt pump (7), and the asphalt enters the cracks in sequence through the barrel (2), the first connecting pipe (6), the asphalt pump (7), the second connecting pipe (8) and the spray head (9); After the asphalt fills the crack, the upper surface of the crack is compacted using the compacting wheel (15).

8. The repair method according to claim 7, characterized in that, The following steps are also included: When the liquid level of the asphalt in the barrel (2) is higher than or equal to the height of the stirring shaft (3), the control unit turns on the driving assembly and drives the stirring frame (4) to rotate along its spiral direction, and the control unit controls the heating ring (5) to heat the asphalt; When the liquid level of the asphalt in the material bucket (2) is lower than the height of the stirring shaft (3), the control unit activates the drive assembly to drive the stirring frame (4) to rotate reciprocally around the stirring shaft (3). The number of rotations of the stirring frame (4) per single rotation is not less than its number of spiral turns, and the control unit controls the heating ring (5) to heat the asphalt.

9. The repair method according to claim 7, characterized in that, After the asphalt fills the crack, the compaction wheel (15) is used to compact the upper surface of the crack. It further includes: The control unit controls the electromagnet (21) to intermittently attract the magnetic part (19); so that the compaction wheel (15) vibrates and compacts the upper surface of the crack.

Images