Roller leveling device for road paving and construction process thereof

Abstract

The present application relates to a roller leveling device for road surface paving and its construction process. The leveling device includes a roller and a pull rod rotatably connected to both ends of the roller, and also includes a leveling drive mechanism. The leveling drive mechanism includes a box beam, a drive assembly, a rotating shaft, a drive disc and a running wheel. The rotating shaft is connected to the box beam along the length direction of the box beam, and the running wheels are arranged at both ends of the box beam. The drive assembly is arranged in the box beam and can drive the running wheel to drive the box beam to move, and the drive assembly can simultaneously drive the rotating shaft to rotate. The drive disc is coaxially arranged at both ends of the rotating shaft. A fixed column is eccentrically provided on the side of the drive disc away from the rotating shaft. The two fixed columns are symmetrically arranged about the center of mass of the rotating shaft. The roller is located on one side of the box beam, and the pull rod is rotatably connected to the fixed column at one end away from the roller. The pull rod is perpendicular to the axis of the rotating shaft. The present application has the effect of improving the efficiency of road surface construction while improving the construction quality of the road surface.

Description

Technical Field

[0001] The present application relates to the technical field of leveling devices, and in particular to a roller leveling device for road paving and a construction process thereof. Background Art

[0002] In airport construction, the airport runway is the most basic and important component of the airport. Concrete has the characteristics of high rigidity, strong load diffusion stress capacity, good stability and long service life. Therefore, concrete pavement is often used in the construction of airport runway pavement. When large-scale paving of pavement concrete is carried out, the performance of the airport runway pavement will directly affect the passage of aircraft and the overall management of the airport.

[0003] The flatness of the airport concrete pavement will directly affect the quality of the pavement and the safe passage of aircraft. In the current airport runway construction process, in addition to controlling the quality of the concrete pavement from aspects such as the water-cement ratio and mix ratio of the concrete, the top surface of the newly laid concrete pavement will also be leveled by machinery during the paving process to give the concrete pavement its shape. At present, rollers are mostly used for leveling the top surface of the pavement. Figure 1 , including a roller and a pull rod arranged at both ends of the roller, the roller and the pull rod are rotatably connected. When in use, two construction workers pull the pull rod to make the roller roll on the concrete. During the rolling process of the roller, the mud on the upper layer of the concrete is slapped to the upper surface. During the movement, part of the concrete will also be moved by the roller, leveling a road surface with higher flatness, thereby achieving the slurry raising and leveling effect on the top surface of the concrete.

[0004] Regarding the above-mentioned related technologies, during the airport runway construction process, when the construction is first carried out by manually pulling the roller, it not only increases the labor intensity of the construction workers, but also has low construction efficiency, thereby affecting the construction efficiency. In addition, when manual leveling and slurrying are used, it is difficult to ensure that the slurrying effect of each section of the pavement remains consistent due to the manual operation of the construction workers, which affects the quality control of the airport pavement construction. Summary of the Invention

[0005] In order to improve the efficiency and quality of pavement construction, the present application provides a roller leveling device for pavement paving and a construction process thereof.

[0006] In a first aspect, the present application provides a roller leveling device for road paving, which adopts the following technical solution:

[0007] A roller leveling device for road surface paving comprises a roller and a pull rod rotatably connected to both ends of the roller, and also comprises a leveling drive mechanism, the leveling drive mechanism comprises a box beam, a drive assembly, a rotating shaft, a drive disc and a walking wheel, the rotating shaft is rotatably connected to the box beam along the length direction of the box beam, the walking wheels are arranged at both ends of the box beam, the drive assembly is arranged in the box beam and can drive the walking wheel to drive the box beam to move, and the drive assembly can simultaneously drive the rotating shaft to rotate, the driving disc is coaxially arranged at both ends of the rotating shaft, and a fixed column is eccentrically provided on the side of the drive disc away from the rotating shaft, and the two fixed columns are symmetrically arranged about the center of mass of the rotating shaft, the roller is located on one side of the box beam, and the pull rod is rotatably connected to the fixed column at one end away from the roller, and the pull rod is perpendicular to the axial direction of the rotating shaft.

[0008] By adopting the above technical solution, when the airport pavement is being poured and constructed, when the top surface of the concrete is being slurried and leveled, the roller leveling device is placed on the templates on both sides so that the entire device can move along the template, and the roller is placed on the top surface of the concrete, and the box beam is driven to move by the driving assembly to realize the movement of the entire device. At the same time, the driving assembly drives the rotating shaft to rotate, driving the driving discs at both ends to rotate. Due to the different positions of the fixed columns provided on the driving discs at both ends, during the movement of the box beam, the roller is driven to move by the pull rod, and at the same time as the roller moves, the fixed column acts on the pull rod to make the two ends of the roller swing back and forth, realizing the back and forth swinging effect of the two ends while the roller moves forward, thereby effectively improving the slurry raising effect on the top surface of the concrete, and realizing the leveling effect on the top surface of the concrete during the movement of the roller; thereby not only reducing the labor intensity of the construction workers and improving efficiency; but also using the fixed motion trajectory of the roller to slurry and level the top surface of the concrete, so that the slurry raising effect of the entire pavement is consistent, thereby improving the quality control of the airport runway construction.

[0009] Optionally, the roller leveling device also includes a pre-leveling mechanism, which includes a support frame, a leveling frame, an elastic connector and a vibration motor. The support frame is arranged on the side of the box beam away from the roller bar, and the leveling frame is arranged at the bottom of the support frame. The leveling frame and the support frame are connected through the elastic connector. The vibration motor is arranged on the leveling frame, and a number of vibrating rods are provided at the bottom of the leveling frame.

[0010] By adopting the above technical solution, when pouring the pavement, a pre-leveling mechanism is set up. During the movement of the box girder, the support frame drives the leveling frame to move through the elastic connecting piece. During the movement, the leveling frame pushes away the concrete protruding from the top surface of the concrete, thereby achieving a pre-leveling effect on the top surface of the concrete. During the movement of the leveling frame, the vibrating rod is inserted into the concrete. Under the action of the vibration motor, the leveling frame drives the vibrating rod to vibrate continuously, thereby achieving a vibration effect on the concrete, making the interior of the concrete more dense while achieving a rough leveling effect on the top surface of the concrete.

[0011] Optionally, the leveling frame includes a push plate and a connecting frame, the connecting frame is connected to the support frame through the elastic connecting member, the push plate is arranged at the end of the connecting frame away from the box beam, the push plate is arranged gradually closer to the box beam from the center to both ends, and several vibrating rods are arranged on the side of the push plate close to the box beam, and several vibrating rods are evenly arranged along the length direction of the push plate.

[0012] By adopting the above technical solution, a push plate is arranged on the connecting frame, and the push plate is gradually approached to the box beam from the center to both ends. In the process of the leveling frame moving forward, the concrete protruding in the middle of the concrete top surface is pushed to both sides under the action of the push plate and vibrated by the vibrating rod, so that the entire concrete top surface remains relatively flat, and then when it is leveled by the roller rod at the back, the concrete top surface can be more effectively raised and leveled.

[0013] Optionally, the elastic connecting member includes an upper connecting tube, a lower connecting tube and a spring, the upper connecting tube is arranged at the bottom of the support frame, the lower connecting tube is arranged at the top of the connecting frame, the upper connecting tube and the lower connecting tube are coaxially sleeved and connected, and the spring is coaxially arranged in the upper connecting tube and the lower connecting tube.

[0014] By adopting the above technical solution, the elastic connecting piece is provided, which protects the internal spring through the connection of the upper and lower connecting pipes and provides a certain support for the spring, thereby avoiding excessive deformation of the spring when the leveling frame is pushed forward, which may cause the spring to fail, and improving the stability of the device operation.

[0015] Optionally, an upper fixing ring is provided inside the connecting end of the upper connecting tube, and a lower fixing ring is provided outside the connecting end of the lower connecting tube, the outer diameter of the lower fixing ring is larger than the inner diameter of the upper fixing ring and smaller than the inner diameter of the upper connecting tube, and the outer diameter of the lower connecting tube is smaller than the inner diameter of the upper fixing ring.

[0016] By adopting the above technical solution, upper and lower fixing rings are respectively provided on the upper and lower connecting pipes. Under the action of the fixing rings, a certain restriction effect is exerted on the upper and lower connecting pipes, thereby preventing the upper and lower connecting pipes from being separated during the vibration of the leveling frame and affecting the normal operation of the device; and by limiting the relationship between the inner and outer diameters of the upper and lower connecting pipes and the upper and lower fixing rings, the upper and lower fixing rings can restrict and protect the upper and lower connecting pipes while avoiding frequent contact between the upper and lower connecting pipes, so that the vibration of the leveling frame drives the box beam to vibrate and affects the smooth operation of the device; thereby further improving the stability of the device operation.

[0017] Optionally, the pull rod includes a rod body, a ball head, a fixed tube and a connecting block, the ball head is arranged at one end of the rod body close to the roller bar, connecting shafts are provided at both ends of the roller bar, the fixed tube is sleeved on the connecting shaft, the connecting block is arranged on the side wall of the fixed tube, the side wall of the connecting block is provided with a fixing groove matching the ball head, the ball head is located in the fixing groove and can rotate in the fixing groove.

[0018] By adopting the above technical solution, a ball head is set between the rod body and the connecting block, and the roller bar can swing back and forth at both ends during the forward movement, realizing a special movement mode of the roller bar, thereby effectively improving the slurry leveling effect on the top surface of the concrete.

[0019] Optionally, a flexible sealing sleeve is provided along the circumference between the connecting block and the rod body.

[0020] By adopting the above technical solution, when the concrete top surface is leveled, concrete slurry will splash during the vibration process. By providing a flexible sealing sleeve, the concrete slurry can be prevented from splashing into the fixed groove and affecting the rotation of the ball head, thereby effectively improving the stability of the device operation.

[0021] Optionally, the drive assembly includes a gearbox, a motor, a sprocket and a chain. The motor and the gearbox are both arranged in the box beam. The motor is used to drive the input shaft of the gearbox to rotate. A linkage shaft is provided between the walking wheels at both ends of the box beam. The output shaft of the gearbox is transmitted to the rotating shaft and the linkage shaft through a sprocket chain.

[0022] By adopting the above technical solution, when the concrete pavement is leveled, the motor works under the action of the gearbox to control the rotation, and the output end of the gearbox transmits power to the linkage shaft and the rotating shaft through the sprocket chain, thereby realizing the movement of the walking wheel and driving the driving plate to rotate through the rotating shaft, and then realizing the special movement mode of the roller bar through the pull rod; by adopting a power source, the movement of the box beam is realized while realizing the special movement mode of the roller bar.

[0023] In a second aspect, the present application provides an airport pavement paving construction process, which adopts the following technical solution:

[0024] A construction process for airport pavement paving, comprising the following steps:

[0025] Preparation: Divide the airport pavement into multiple construction strips along the width direction. The width of the construction strips is equivalent to the distance between the running wheels on both sides of the roller leveling device. The multiple construction strips are laid in sequence.

[0026] Formwork support: according to the designed pavement concrete height, support the formwork of corresponding height on both sides of the construction zone;

[0027] Rough paving: Pour concrete between the formwork so that the concrete fills the space between the formwork on both sides and the middle of the concrete spread along the formwork is higher than the two sides;

[0028] Leveling: Place the roller leveling device on the top of the formwork so that the walking wheels are located on the top of the formwork on both sides, drive the roller leveling device to move on the formwork, and drive the roller to move to raise the slurry and level the top surface of the concrete.

[0029] By adopting the above technical solution, when constructing the pavement, the Prime Minister divides the pavement into individual construction zones for construction, which not only solves the problem of a large area of ​​concrete poured at one time affecting the pouring quality of the pavement, but also facilitates the leveling construction using a practical roller leveling device; and by making the middle of the concrete spread along the formwork higher than the two sides, when leveling with a roller leveling device, it can not only improve the uniformity and density of the concrete pouring, but also make the leveling effect of the top of the pavement more convenient.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. A leveling drive mechanism is provided, including a box beam, a drive assembly, a rotating shaft, a driving disc, and a traveling wheel. The driving assembly drives the box beam to move, thereby realizing the movement of the entire device. At the same time, the rotating shaft is driven to rotate, driving the driving discs at both ends to rotate. The fixed column acts on the pull rod, causing the two ends of the roller bar to swing back and forth. The front and back swing effect of the two ends is achieved while the roller bar moves forward, effectively improving the slurry lifting effect on the top surface of the concrete. The top surface of the concrete is leveled during the movement of the roller bar.

[0032] 2. By setting up a pre-leveling mechanism including a support frame, a leveling frame, an elastic connector and a vibration motor, during the movement of the box girder, the support frame drives the leveling frame to move through the elastic connector. During the movement, the leveling frame pushes away the protruding concrete on the top surface of the concrete, achieving a pre-leveling effect on the top surface of the concrete. The vibrating rod continuously vibrates to achieve a rough leveling effect on the top surface of the concrete, thereby improving the leveling effect of the roller bar;

[0033] 3. The construction process is firstly to divide the pavement into multiple construction strips for sequential construction. By making the middle of the concrete poured between the formwork higher than the two sides, and leveling it with a roller leveling device, it can not only improve the uniformity and density of the concrete pouring, but also make it more convenient to level the top of the pavement. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of a roller leveling device for road surface paving according to an embodiment of the present application.

[0035] Figure 2 This is a partial cross-sectional view of a roller leveling device for road surface paving according to an embodiment of the present application.

[0036] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0037] Figure 4 It is a schematic diagram of the connection structure of the roller bar, the pull rod and the drive plate in the embodiment of the present application.

[0038] Figure 5 It is a structural schematic diagram of the pull rod in the embodiment of the present application.

[0039] Explanation of the accompanying drawings: 1. Roller bar; 11. Connecting shaft; 2. Pull rod; 21. Rod body; 22. Ball head; 23. Fixed cylinder; 24. Connecting block; 241. Fixed groove; 25. Flexible sealing sleeve; 3. Leveling drive mechanism; 31. Box beam; 32. Drive assembly; 321. Gearbox; 322. Motor; 323. Sprocket chain; 33. Rotating shaft; 34. Drive disk; 341. Fixed column; 35. Travel wheel; 351. Linkage shaft; 4. Pre-leveling mechanism; 41. Support frame; 42. Leveling frame; 421. Vibrating rod; 422. Push plate; 423. Connecting frame; 43. Elastic connector; 431. Upper connecting tube; 432. Lower connecting tube; 433. Spring; 434. Upper fixing ring; 435. Lower fixing ring; 44. Vibration motor. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-5 This application is described in further detail.

[0041] The embodiment of the present application discloses a roller leveling device for road paving. Figure 1 and Figure 2The roller leveling device 1 includes a roller 1, a pull rod 2 rotatably connected to the two ends of the roller 1, a leveling drive mechanism 3 and a pre-leveling mechanism 4; the leveling drive mechanism 3 includes a box beam 31, a drive assembly 32, a rotating shaft 33, a drive disk 34 and a walking wheel 35; the box beam 31 is rectangular and hollow, and the walking wheels 35 are arranged at both ends of the box beam 31. The walking wheels 35 include driving wheels and supporting wheels. The driving wheels and the supporting wheels are both arranged at both ends of the box beam 31. A linkage shaft 351 is coaxially connected between the driving wheels at both ends of the box beam 31. When the box beam 31 needs to move, the linkage shaft 351 is driven to rotate and then the driving wheel is driven to drive the box beam 31 to move. During the movement of the box beam 31, it is directly supported by the support wheels, so that the box beam 31 remains balanced during the movement.

[0042] Reference Figure 2 and Figure 3 The pre-leveling mechanism 4 includes a support frame 41, a leveling frame 42, an elastic connecting piece 43 and a vibration motor 44. The support frame 41 is a grid-like structure, which can reduce the weight of the device while reducing material and saving costs. The support frame 41 is installed parallel to the bottom of the box beam 31 on the side away from the roller bar, and the leveling frame 42 is installed at the bottom of the support frame 41. The leveling frame 42 and the support frame 41 are connected by an elastic connecting piece 43. The vibration motor 44 is installed on the leveling frame 42, and a number of vibrating rods 421 are installed at the bottom of the leveling frame 42; when leveling the concrete on the top of the pavement, the leveling frame 42 drives the vibrating rods 421 to vibrate under the action of the vibration motor 44, thereby achieving the vibration effect of the concrete and realizing the pre-leveling of the top surface of the concrete. When the roller bar 1 is leveled again after slurry lifting, the leveling effect of the roller bar 1 can be effectively improved.

[0043] Reference Figure 1 and Figure 2 The leveling frame 42 includes a push plate 422 and a connecting frame 423. The connecting frame 423 is a grid-like structure, and the connecting frame 423 is connected to the support frame 41 through an elastic connecting piece 43. The connecting frame 423 is arranged parallel to the support frame 41, and the push plate 422 is fixedly installed on the end of the connecting frame 423 away from the box beam 31. The push plate 422 is arranged gradually closer to the box beam 31 from the center to the two ends. When the box beam 31 moves, the push plate 422 is driven by the support frame 41 to move. Under the action of the push plate 422, the concrete protruding in the middle of the top surface of the concrete is pushed to both sides, thereby achieving the pre-leveling effect of the top surface of the concrete; a plurality of vibrating rods 421 are fixedly installed on one side of the push plate 422 close to the box beam 31, and a plurality of vibrating rods 421 are evenly arranged along the length direction of the push plate 422. During the movement of the push plate 422, the push plate 422 drives the vibrating rod 421 to vibrate continuously, thereby achieving a vibration effect on the concrete, thereby improving the pre-leveling efficiency and improving the density of the interior of the concrete.

[0044] Reference Figure 2 and Figure 3 The elastic connecting member 43 includes an upper connecting tube 431, a lower connecting tube 432 and a spring 433. The upper connecting tube 431 is vertically fixedly connected to the bottom of the support frame 41, and the lower connecting tube is vertically fixedly connected to the top of the connecting frame 423. The upper connecting tube 431 and the lower connecting tube 432 are coaxially sleeved and connected. The spring 433 is coaxially installed in the upper connecting tube 431 and the lower connecting tube 432. One end of the spring 433 is fixed in the upper connecting tube 431, and the other end is fixed in the lower connecting tube 432. During the vibration of the leveling frame 42, the spring 433 has a shock-absorbing effect on the movement of the box beam 31, thereby ensuring the stable movement of the box beam 31. An upper fixing ring 434 is integrally provided inside the connecting end of the upper connecting tube 431, and a lower fixing ring 435 is integrally provided outside the connecting end of the lower connecting tube 432. The upper fixing ring 434 and the lower fixing ring 435 play a certain limiting role on the upper and lower connecting tubes 432, thereby preventing the upper and lower connecting tubes 432 from detaching during the vibration of the leveling frame 42; and the outer diameter of the lower fixing ring 435 is set to be larger than the inner diameter of the upper fixing ring 434 and smaller than the inner diameter of the upper connecting tube 431, and the outer diameter of the lower connecting tube 432 is smaller than the inner diameter of the upper fixing ring 434, thereby avoiding frequent rigid contact between the upper and lower connecting tubes 432, further reducing the vibration of the box beam 31 caused by the vibration of the leveling frame 42, and improving the working stability of the device.

[0045] Reference Figure 1 and Figure 2 The rotating shaft 33 is rotatably connected to the box beam 31 along the length direction of the box beam 31, and the two ends of the rotating shaft 33 extend out of the side walls of the box beam 31. The driving disk 34 is coaxially fixedly connected to the two ends of the rotating shaft 33. The side of the driving disk 34 away from the rotating shaft 33 is eccentrically fixed with a fixed column 341. The fixed column 341 has the same axial direction as the rotating shaft 33, and the two fixed columns 341 are symmetrically arranged around the center of mass of the rotating shaft 33.

[0046] Reference Figure 1 and Figure 2 The drive assembly 32 is installed in the box beam 31. The drive assembly 32 includes a gearbox 321, a motor 322, and a sprocket chain 323. The motor 322 and the gearbox 321 are both installed in the box beam 31. The output shaft of the motor 322 is coaxially fixedly connected to the input shaft of the gearbox 321. The output shaft of the gearbox 321 extends to the side wall of the box beam 31 and is rotatably connected to the box beam 31. Two sprockets are installed on the output shaft of the gearbox 321, and corresponding sprockets are installed on the rotating shaft 33 and the linkage shaft 351, so that the output shaft of the gearbox 321 and the rotating shaft 33 and the linkage shaft 351 are all transmitted through the sprocket chain 323; the motor 322 drives the gearbox 321 to operate, and the output shaft of the gearbox 321 transmits power to the linkage shaft 351 and the rotating shaft 33 through the sprocket chain 323, thereby realizing the movement of the driving wheel and driving the driving disc 34 to rotate through the rotating shaft 33.

[0047] Reference Figure 2 and Figure 4 The roller 1 is located on one side of the box beam 31, and the end of the pull rod 2 away from the roller 1 is rotatably connected to the fixed column 341. The pull rod 2 is perpendicular to the axial direction of the rotating shaft 33. During the rotation of the rotating shaft 33, the fixed column 341 is driven to move by the driving disk 34, and the fixed column 341 drives the pull rod 2 to move and then drives the roller 1 to move. Due to the different positions of the fixed columns 341 on the two driving disks 34, the roller 1 moves while the two ends of the roller swing back and forth, effectively improving the grouting effect on the top surface of the concrete; the pull rod 2 includes a rod body 21, a ball head 22, a fixed cylinder 23 and a connecting block 24. The ball head 22 is integrally arranged at the end of the rod body 21 close to the roller 1, and the roller 1 Both ends of the rod body are fixed with a connecting shaft 11, and the fixing cylinder 23 is sleeved on the connecting shaft 11, so that the connecting shaft 11 can rotate in the fixing cylinder 23 and slide along the fixing cylinder 23. The connecting block 24 is integrally fixed to the side wall of the fixing cylinder 23. The side wall of the connecting block 24 away from the fixing cylinder 23 is provided with a fixing groove 241 that matches the ball head 22. The ball head 22 is located in the fixing groove 241 and can rotate in the fixing groove 241; a flexible sealing sleeve 25 is provided along the circumferential side between the connecting block 24 and the rod body 21. The flexible sealing sleeve 25 can specifically be a flexible rubber sleeve, which can prevent concrete slurry from splashing into the fixing groove 241 during the vibration process and affecting the rotation of the ball head 22.

[0048] The implementation principle of the roller leveling device 1 for pavement paving in the embodiment of the present application is as follows: when the pavement concrete needs to be leveled, the device is placed on the supporting formwork, the box beam 31 is supported on the top of the pavement by the walking wheel 35, and the linkage shaft 351 and the rotating shaft 33 are rotated by the drive of the motor 322 and the gearbox 321, so that the box beam 31 moves along the top of the formwork. At the same time, the rotating shaft 33 drives the driving disk 34 to rotate, and under the action of the fixed column 341, the roller 1 is driven to move through the pull rod 2, and the two ends of the roller 1 are solid. The front and rear swings are used to raise and level the top of the pavement concrete; and in the process of movement of the box beam 31, the leveling frame 42 moves forward so that the push plate 422 pushes the concrete on the top surface of the concrete. At the same time, the vibration motor 44 drives the vibrating rod 421 on the leveling frame 42 to continuously vibrate the concrete, thereby achieving pre-leveling of the top surface of the concrete. When the roller 1 passes by, the slurry is raised and leveled, thereby improving the slurry raising and leveling effect of the top surface of the concrete, and making the slurry raising effect of the entire pavement consistent, thereby improving the quality control of the pavement construction.

[0049] The present application also discloses an airport pavement paving process, referring to Figure 1 , using the above-mentioned road surface paving roller 1 leveling device, including the following steps:

[0050] Preparation: Divide the airport pavement into multiple construction strips along the width direction. The width of the construction strip is equivalent to the distance between the running wheels 35 on both sides of the roller leveling device 1. Lay the multiple construction strips in sequence.

[0051] Formwork support: According to the designed pavement concrete height, formwork of corresponding height is supported on both sides of the construction zone to ensure that the supporting formwork on both sides remains flat and continuous;

[0052] Rough paving: Pour the concrete between the formworks so that the concrete fills the space between the formworks on both sides, and the middle of the concrete spread along the formworks is higher than the two sides, and the height of the concrete close to the formworks on both sides is lower than the formworks, and the height difference does not exceed 2cm;

[0053] Leveling: Place the roller bar 1 leveling device on the top of the formwork so that the walking wheels 35 are located on the top of the formwork on both sides, start the motor 322, and drive the box beam 31 to move on the formwork through the walking wheels 35, driving the roller bar 1 leveling device to move on the formwork. Under the action of the pre-leveling mechanism 4, the top surface of the concrete is level with the top surface of the formwork, and at the same time drive the roller bar 1 to move, so that the two ends of the roller bar 1 swing back and forth while moving, and the top surface of the concrete is leveled.

[0054] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A roller leveling device for road surface paving, comprising a roller (1) and a pull rod (2) rotatably connected to both ends of the roller (1), characterized in that: The leveling drive mechanism (3) is also included. The leveling drive mechanism (3) includes a box beam (31), a drive assembly (32), a rotating shaft (33), a driving disc (34) and a walking wheel (35). The rotating shaft (33) is connected to the box beam (31) in a rotational direction along the length of the box beam (31). The walking wheels (35) are provided at both ends of the box beam (31). The drive assembly (32) is provided in the box beam (31) and can drive the walking wheels (35) to drive the box beam (31) to move, and the drive assembly (32) can simultaneously The rotating shaft (33) is driven to rotate, and the driving disc (34) is coaxially arranged at both ends of the rotating shaft (33). A fixed column (341) is eccentrically provided on one side of the driving disc (34) away from the rotating shaft (33). The two fixed columns (341) are symmetrically arranged around the center of mass of the rotating shaft (33). The roller (1) is located on one side of the box beam (31), and the pull rod (2) is rotatably connected to the fixed column (341) at one end away from the roller (1). The pull rod (2) is perpendicular to the axial direction of the rotating shaft (33).

2. A roller leveling device for road paving according to claim 1, characterized in that: The roller bar (1) leveling device further comprises a pre-leveling mechanism (4), the pre-leveling mechanism (4) comprising a support frame (41), a leveling frame (42), an elastic connecting member (43) and a vibration motor (44), the support frame (41) being arranged on a side of the box beam (31) away from the roller bar, the leveling frame (42) being arranged at the bottom of the support frame (41), the leveling frame (42) being connected to the support frame (41) via the elastic connecting member (43), the vibration motor (44) being arranged on the leveling frame (42), and a plurality of vibrating rods (421) being arranged at the bottom of the leveling frame (42).

3. The roller leveling device for road paving according to claim 2, characterized in that: The leveling frame (42) includes a push plate (422) and a connecting frame (423), the connecting frame (423) is connected to the support frame (41) through the elastic connecting member (43), the push plate (422) is arranged at one end of the connecting frame (423) away from the box beam (31), the push plate (422) is arranged gradually closer to the box beam (31) from the center to both ends, a plurality of vibrating rods (421) are arranged on one side of the push plate (422) close to the box beam (31), and the plurality of vibrating rods (421) are evenly arranged along the length direction of the push plate (422).

4. The roller leveling device for road paving according to claim 3, characterized in that: The elastic connecting member (43) comprises an upper connecting tube (431), a lower connecting tube (432) and a spring (433); the upper connecting tube (431) is arranged at the bottom of the support frame (41); the lower connecting tube is arranged at the top of the connecting frame (423); the upper connecting tube (431) and the lower connecting tube (432) are coaxially sleeved and connected; and the spring (433) is coaxially arranged inside the upper connecting tube (431) and the lower connecting tube (432).

5. The roller leveling device for road paving according to claim 4, characterized in that: An upper fixing ring (434) is provided inside the connecting end of the upper connecting tube (431), and a lower fixing ring (435) is provided outside the connecting end of the lower connecting tube (432). The outer diameter of the lower fixing ring (435) is larger than the inner diameter of the upper fixing ring (434) and smaller than the inner diameter of the upper connecting tube (431), and the outer diameter of the lower connecting tube (432) is smaller than the inner diameter of the upper fixing ring (434).

6. The roller leveling device for road paving according to claim 1, characterized in that: The pull rod (2) includes a rod body (21), a ball head (22), a fixed cylinder (23) and a connecting block (24), wherein the ball head (22) is provided at one end of the rod body (21) close to the roller (1), and connecting shafts (11) are provided at both ends of the roller (1). The fixed cylinder (23) is sleeved on the connecting shaft (11), and the connecting block (24) is provided on the side wall of the fixed cylinder (23). The side wall of the connecting block (24) is provided with a fixing groove (241) matching the ball head (22), and the ball head (22) is located in the fixing groove (241) and can rotate in the fixing groove (241).

7. The roller leveling device for road paving according to claim 6, characterized in that: A flexible sealing sleeve (25) is provided along the circumference between the connecting block (24) and the rod body (21).

8. The roller leveling device for road paving according to claim 1, characterized in that: The driving assembly (32) includes a gearbox (321), a motor (322), and a sprocket chain (323). The motor (322) and the gearbox (321) are both arranged in the box beam (31). The motor (322) is used to drive the input shaft of the gearbox (321) to rotate. A linkage shaft (351) is provided between the walking wheels (35) at both ends of the box beam (31). The output shaft of the gearbox (321) and the rotating shaft (33) and the linkage shaft (351) are all transmitted through the sprocket chain (323).

9. An airport pavement paving process, characterized by: The roller leveling device for road paving according to any one of claims 1 to 8 comprises the following steps: Preparation work: Divide the airport pavement into multiple construction strips along the width direction, the width of the construction strips being equal to the spacing between the running wheels (35) on both sides of the leveling device of the roller bar (1), and laying the multiple construction strips in sequence; Formwork support: according to the designed pavement concrete height, support the formwork of corresponding height on both sides of the construction zone; Rough paving: Pour concrete between the formwork so that the concrete fills the space between the formwork on both sides and the middle of the concrete spread along the formwork is higher than the two sides; Leveling: The roller bar (1) leveling device is placed on the top of the template so that the walking wheels (35) are located on the top of the template on both sides, and the roller bar (1) leveling device is driven to move on the template, and the roller bar (1) is driven to move to raise the slurry and level the top surface of the concrete.

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