Airfield pavement concrete slurry kneading and surface making device

Abstract

The utility model discloses an airport pavement concrete slurry kneading and surface making device which comprises a controller and two guide rails arranged side by side, a fixing plate is arranged above the guide rails, and the fixing plate is connected with the guide rails through a driving mechanism. A slurry compactness detection mechanism, a slurry surface transverse uniform mixing mechanism, a slurry surface longitudinal uniform mixing mechanism and a slurry kneading mechanism are sequentially arranged on the fixing plate in the front-back direction, the slurry compactness detection mechanism comprises a plurality of first electric cylinders which are arranged at the front end of the fixing plate side by side in the left-right direction, and the first electric cylinders are arranged in the longitudinal direction; a cylinder barrel of the first electric cylinder penetrates through the fixing plate and is fixedly connected with the fixing plate. According to the utility model, the problem of quality defect of an airfield pavement slab caused by non-uniform compactness of the slurry surface is solved, the existing slurry kneading technology is improved, and the construction quality of the airfield pavement can be obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of airport pavement construction technology, specifically to a device for kneading and slurrying airport pavement concrete. Background Technology

[0002] Currently, cement concrete pavement is basically used in the flight area pavement engineering of newly built and expanded airports in my country. It has the characteristics of good durability, high strength, long service life and high integrity. During construction, the roller grouting process is adopted. The quality of roller grouting directly affects the thickness and uniformity of mortar on the cement concrete surface, thus determining the flatness, texture depth, durability and service life of the pavement panel.

[0003] However, the traditional rolling and pushing method for kneading slurry in past construction processes only involves simple rollers for kneading, resulting in a simple structure and limited function that cannot meet the requirements of high-quality airport pavements. Specifically, this is reflected in: Figure 4 As shown, after the mortar is placed into the pavement mold, the mortar surface is not smooth and has many protrusions. During the kneading process, simply pressing these protrusions into the mortar can lead to several areas of higher density at the top of the mortar, resulting in uneven density on the mortar surface and affecting the quality of the subsequent pavement formation. Since airport pavements involve significant safety aspects, improvements are necessary to address these issues. Utility Model Content

[0004] Based on the problems existing in the prior art, this utility model provides an airport pavement concrete kneading and surface preparation device, which can achieve kneading on the basis of uniform mortar surface density, and can be used to prepare high-quality airport pavement.

[0005] To solve the above problems, the technical solution of this utility model is as follows:

[0006] A device for kneading and finishing concrete pavement at airports includes a controller, two parallel guide rails, and a fixed plate above the guide rails. The fixed plate is connected to the guide rails via a drive mechanism. The fixed plate is provided with a slurry density detection mechanism, a slurry surface transverse mixing mechanism, a slurry surface longitudinal mixing mechanism, and a kneading mechanism in sequence along the front-back direction. The controller is electrically connected to a power source and is electrically connected to the drive mechanism, the slurry density detection mechanism, the slurry surface transverse mixing mechanism, the slurry surface longitudinal mixing mechanism, and the kneading mechanism via wires.

[0007] Preferably, the guide rails are respectively disposed on the outside of the pavement template, and a sliding plate is slidably connected to the upper end of the guide rail. The top end of the sliding plate is fixedly connected to the side end of the fixed plate through an L-shaped connecting plate.

[0008] The drive mechanism includes a servo motor mounted on a sliding plate on both sides. The servo motor is fixed to the upper end of the sliding plate, and its output shaft rotatably passes through the sliding plate and is fixedly connected to a drive gear. A rack structure is embedded in the outer surface of the guide rail along the length direction.

[0009] The driving gear meshes with the rack structure, and the bottom of the sliding plates on both sides is also rotatably connected to the driven gear via a longitudinal shaft. The driven gear meshes with the rack structure, and the two servo motors are electrically connected to the controller via wires and move synchronously under the control of the controller.

[0010] Preferably, the slurry density detection mechanism includes a plurality of first electric cylinders arranged side by side along the left-right direction at the front end of the fixed plate. The first electric cylinders are arranged longitudinally, the cylinder barrel of the first electric cylinder passes through the fixed plate and is fixedly connected to the fixed plate, and the piston rod end of the first electric cylinder is connected to a pressure plate through a pressure sensor.

[0011] The pressure plate is a rectangular plate with a gap fit between adjacent pressure plates. The first electric cylinder is electrically connected to the controller via a wire. The slurry density detection mechanism detects the density of the slurry surface under the control of the controller and performs slurry pressing operation on the slurry surface through the pressure plate under the control of the controller.

[0012] Preferably, the slurry surface transverse mixing mechanism includes a linear drive mechanism and a movable seat, wherein the linear drive mechanism drives the movable seat to move in the left-right direction;

[0013] The top of the movable seat is slidably connected to the bottom of the fixed plate. A second electric cylinder is fixedly provided at the bottom of the movable seat along the longitudinal direction. The fixed end of the second electric cylinder is fixedly connected to the movable seat, and the telescopic end is rotatably connected to the stirring drum through the drum bracket.

[0014] The stirring drum includes a drum body and a plurality of first stirring rods evenly distributed on the surface of the drum body. The second electric cylinder is electrically connected to the controller via a wire.

[0015] Preferably, both ends of the roller body are rotatably connected to the roller bracket, and a geared motor is fixedly mounted on one end of the roller bracket. The output shaft of the geared motor is fixedly connected to the end of the central shaft of the roller body, and the geared motor is electrically connected to the controller through a wire.

[0016] Preferably, the linear drive mechanism includes a lead screw that is rotatably connected between the vertical sections of two L-shaped connecting plates in the left-right direction, the movable seat is screwed to the lead screw, a drive motor is fixedly connected to the outer end of the vertical section, the output shaft of the drive motor is fixedly connected to the end of the lead screw, and the drive motor is electrically connected to the controller through a wire.

[0017] Preferably, the longitudinal mixing mechanism for the slurry surface includes a mixing drum arranged in the left-right direction. The mixing drum includes a drum body two. A plurality of second mixing rods are evenly distributed on the outer surface of the drum body two. The two ends of the drum body two are respectively rotatably connected to a mounting plate one. The top end of the mounting plate one passes through a fixing plate through a threaded screw one and is fixed relative to the fixing plate by a limiting nut. A reduction motor two is fixedly mounted on the outer surface of the mounting plate one. The output shaft of the reduction motor two is fixedly connected to the end of the roller shaft of the drum body two. The reduction motor two is electrically connected to a controller through a wire. The width of the mixing drum matches the construction width of the airport pavement.

[0018] Preferably, the kneading mechanism includes a kneading roller arranged in the left-right direction. The kneading roller includes a roller body three. The two ends of the roller body three are respectively rotatably connected to mounting plates two. The top of the mounting plate two is fixedly connected to a threaded screw two arranged in the longitudinal direction. The two threaded screws two pass through the fixed plate and are fixed to the fixed plate relative to the fixed plate through limiting nuts. An electric motor is fixedly mounted on the outer surface of the mounting plate two. The output shaft of the electric motor is fixedly connected to the end of the central shaft of the roller body three. The electric motor is electrically connected to the controller through wires.

[0019] This utility model has the following beneficial effects:

[0020] This invention, through comprehensive testing, can map the distribution of areas with high surface density of the slurry that require further treatment, thus achieving a complete understanding of the surface density distribution of the airport pavement slurry. The transverse and longitudinal mixing mechanisms on the slurry surface are used to stir the selected high-density areas and their surroundings, achieving uniform surface density. After uniformity is achieved, a kneading mechanism performs rubbing and kneading operations. This device solves the problem of airport pavement slab quality defects caused by uneven slurry surface density, improves existing kneading techniques, and can significantly improve the construction quality of airport pavements. Attached Figure Description

[0021] Figure 1 A front view of the device of this utility model;

[0022] Figure 2 A side view of the structural cross-section of the device of this utility model;

[0023] Figure 3 A top view of the device of this utility model;

[0024] Figure 4 A schematic diagram illustrating the principle of uneven density on the surface of the slurry;

[0025] Figure 5 The controller of this utility model draws a distribution map of the areas with high surface density of slurry and areas to be treated according to a preset program;

[0026] Figure 6 A schematic diagram of the structure of the kneading roller of this utility model.

[0027] 1: Guide rail; 2: Pavement template; 3: Slurry; 31: Accumulated mortar; 32: High-density area; 4: Servo motor; 5: Rack and pinion structure; 6: Fixed plate; 7: L-shaped connecting plate; 8: Sliding plate; 9: First electric cylinder; 10: Pressure sensor; 11: Pressure plate; 12: Lead screw; 13: Drive motor; 14: Mixing drum; 15: Second geared motor; 16: Second mixing rod; 17: Moving seat; 18: Second electric cylinder; 19: Mixing drum; 20: First threaded screw; 21: Limit nut; 22: Drive gear; 23: Driven gear; 24: First mixing rod; 25: Kneading drum; 26: Electric motor; 27: Second threaded screw. Detailed Implementation

[0028] The following is a detailed description of the embodiments of this utility model in a step-by-step manner. This description is only a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0030] Example 1

[0031] An airport pavement concrete kneading and surface-forming device, such as Figure 1-6 As shown, the device includes a controller, two parallel guide rails 1, and a fixing plate 6 above the guide rails 1. The fixing plate 6 is connected to the guide rails 1 via a drive mechanism. The fixing plate 6 is provided with a slurry density detection mechanism, a slurry surface transverse mixing mechanism, a slurry surface longitudinal mixing mechanism, and a kneading mechanism in sequence along the front-back direction. The controller is electrically connected to a power source and is electrically connected to the drive mechanism, the slurry density detection mechanism, the slurry surface transverse mixing mechanism, the slurry surface longitudinal mixing mechanism, and the kneading mechanism via wires.

[0032] In this embodiment, the function of the slurry density detection mechanism is: 1. to initially detect the uneven density of the slurry surface and adjust the density of each area through grouting action; 2. to finally screen out areas with high slurry surface density that need to be treated.

[0033] In this process, density is represented by the pressure value detected by the pressure sensor; higher pressure values ​​indicate higher density, and vice versa. Grouting involves repeatedly tapping the grout surface to disperse the mortar in areas of high density, thereby reducing excessive density and achieving initial homogenization of density across different locations. Finally, areas with high density that cannot be homogenized by grouting are recorded as areas with high grout surface density that require further treatment.

[0034] Through comprehensive testing, a distribution map of areas with high surface density and requiring further treatment can be drawn, thus achieving a comprehensive understanding of the surface density distribution of the airport pavement slurry. The transverse and longitudinal mixing mechanisms on the slurry surface are used to stir the selected high-density areas and their surroundings to achieve uniform surface density. After uniform adjustment, the slurry is then kneaded and rolled by the kneading mechanism.

[0035] It should be noted that, as Figure 4 As shown, due to uneven distribution of the mortar or the inability to achieve sufficient leveling during the leveling process, mortar 31 accumulates on the surface of the slurry 3. After being kneaded or rolled by the kneading mechanism, the accumulated mortar 31 is merely pressed below the surface of the slurry, resulting in a region 32 with high density on the surface of the slurry. This region 32 with high density only appears at a certain position on the surface of the slurry and floats on the upper layer of the slurry. Therefore, this uneven density phenomenon can easily lead to a decline in the quality of the airport pavement.

[0036] Example 2

[0037] Based on Example 1, this example is improved as follows: Figure 1-3 As shown, the guide rails 1 are respectively located on the outer side of the pavement template 2. A sliding plate 8 is slidably connected to the upper end of the guide rail 1. The top of the sliding plate 8 is fixedly connected to the side end of the fixed plate 6 through an L-shaped connecting plate 7. The driving mechanism includes servo motors 4 located on the sliding plates 8 on both sides. The servo motors 4 are fixed to the upper end of the sliding plate 8, and the output shaft rotatably passes through the sliding plate 8 and is fixedly connected to the drive gear 22. A rack structure 5 is embedded in the outer surface of the guide rail 1 along the length direction. The drive gear 22 is meshed with the rack structure 5. The bottom of the sliding plates 8 on both sides is also rotatably connected to the driven gear 23 through a longitudinal shaft. The driven gear 23 is meshed with the rack structure 5. The two servo motors 4 are electrically connected to the controller through wires and move synchronously under the control of the controller.

[0038] Example 3

[0039] Based on embodiments 1 and 2, this embodiment is improved as follows: Figure 1-3As shown, the slurry density detection mechanism includes several first electric cylinders 9 arranged side by side along the left-right direction at the front end of the fixed plate 6. The first electric cylinders 9 are arranged longitudinally, and the cylinder barrels of the first electric cylinders 9 pass through the fixed plate 6 and are fixedly connected to the fixed plate 6. The piston rod end of the first electric cylinder 9 is connected to a pressure plate 11 through a pressure sensor 10. The pressure plate 11 is a rectangular plate, and adjacent pressure plates 11 are fitted with a clearance. The first electric cylinders 9 are electrically connected to the controller through wires. Under the control of the controller, the slurry density detection mechanism detects the density of the slurry surface and performs a slurry pressing operation on the slurry surface through the pressure plate 11 under the control of the controller.

[0040] Example 4

[0041] Based on embodiments 1, 2, and 3, this embodiment is improved as follows: Figure 1-3 As shown, the slurry surface transverse mixing mechanism includes a linear drive mechanism and a moving seat 17. The linear drive mechanism drives the moving seat 17 to move in the left-right direction. The top of the moving seat 17 is slidably connected to the bottom of the fixed plate 6. A second electric cylinder 18 is fixedly mounted on the bottom of the moving seat 17 in the longitudinal direction. The fixed end of the second electric cylinder 18 is fixedly connected to the moving seat 17, and the telescopic end is rotatably connected to a stirring drum 19 through a drum bracket. The stirring drum 19 includes a drum body and a plurality of first stirring rods 24 evenly distributed on the surface of the drum body. The second electric cylinder 18 is electrically connected to a controller through a wire.

[0042] like Figure 1 As shown, the two ends of the roller body are rotatably connected to the roller bracket. One end of the roller bracket is fixedly equipped with a geared motor (not marked in the figure). The output shaft of the geared motor is fixedly connected to the end of the central shaft of the roller body. The geared motor is electrically connected to the controller through a wire.

[0043] like Figure 1-3 As shown, the linear drive mechanism includes a lead screw 12 that is rotatably connected between the vertical sections of two L-shaped connecting plates 7 in the left-right direction. The movable seat 17 is screwed to the lead screw 12. A drive motor 13 is fixedly connected to the outer end of the vertical section. The output shaft of the drive motor 13 is fixedly connected to the end of the lead screw 12. The drive motor 13 is electrically connected to the controller through a wire.

[0044] In this embodiment, the second electric cylinder is used to adjust the height of the mixing drum 19, the geared motor is used to control the rotation speed of the mixing drum 19, and the linear drive mechanism is used to move the mixing drum 19 in the left and right directions to achieve lateral mixing of the surface density of the slurry.

[0045] Example 5

[0046] Based on embodiments 1, 2, 3, and 4, this embodiment is improved as follows:

[0047] like Figure 1-3 As shown, the longitudinal mixing mechanism for the slurry surface includes a mixing drum 14 arranged in the left-right direction. The mixing drum 14 includes a drum body 2. A plurality of second mixing rods 16 are evenly distributed on the outer surface of the drum body 2. Mounting plates 1 are rotatably connected to both ends of the drum body 2. The top end of mounting plate 1 passes through a fixed plate 6 via a threaded screw 20 and is fixed relative to the fixed plate 6 by limiting nuts 21 (there are two limiting nuts, respectively located on the threaded screw 1 at the upper and lower ends of the fixed plate). A second reduction motor 15 is fixedly mounted on the outer surface of the mounting plate 1. The output shaft of the second reduction motor 15 is fixedly connected to the end of the roller shaft of the drum body 2. The second reduction motor 15 is electrically connected to a controller via wires. The width of the mixing drum 14 matches the construction width of the airport pavement. The second reduction motor 14 drives the mixing drum 14 to rotate and mixes the slurry surface longitudinally.

[0048] Example 6

[0049] Based on embodiments 1, 2, 3, 4, and 5, this embodiment is improved as follows:

[0050] like Figure 1-3 As shown in Figure 6, the kneading mechanism includes a kneading roller 25 arranged in a left-right direction. The kneading roller 25 includes a roller body 3. Mounting plates 2 are rotatably connected to both ends of the roller body 3. A longitudinally arranged threaded screw 27 is fixedly connected to the top of the mounting plate 2. Two threaded screws 27 penetrate the mounting plate 6 and are fixed relative to the mounting plate 6 by limiting nuts (there are two limiting nuts, respectively located on the threaded screws 2 at the upper and lower ends of the mounting plate). A motor 26 is fixedly mounted on the outer surface of the mounting plate 2. The output shaft of the motor 26 is fixedly connected to the end of the central shaft of the roller body 3. The motor 26 is electrically connected to a controller via wires. The motor is used to lock or unlock the roller body 3.

[0051] Example 7

[0052] Based on the above embodiments, this embodiment discloses a method for using an airport pavement concrete kneading and surface-forming device, such as... Figure 1-6 As shown, it includes the following steps:

[0053] S1: Place the device at the construction location of the airport pavement, so that the guide rail 1 is located on both sides of the pavement template 2, the fixing plate 6 is facing the slurry application area of ​​the pavement, and adjust the surface of the guide rail to be parallel to the preset top of the airport pavement.

[0054] S2: The controller controls the drive mechanism to move the pressure plate 11 to the starting position of the slurry 3 after initial leveling, and starts the first electric cylinder. Each first electric cylinder 9 extends by the same set length. The controller records the data of the pressure sensor installed in each electric cylinder and determines that the position with high pressure value is the area with high density and the position with low pressure value is the area with low density.

[0055] S3: The controller controls each first electric cylinder 9 to synchronously and repeatedly extend and retract, so that the pressure plate 11 pats the slurry surface with the same amplitude to perform grouting action. When the values ​​detected by each pressure sensor 10 are within the set error range, it is considered that the slurry density of each pressure plate 11 area has been uniformly adjusted through the grouting action. Conversely, after a set number of grouting actions, if the pressure value detected in the area corresponding to some pressure plates 11 is still higher than the pressure value detected in the area of ​​other pressure plates, and the higher value is above the set value, then the area with the higher pressure value is recorded as the area with high density and needs to be processed.

[0056] S4: The drive mechanism drives the fixed plate to move forward step by step according to the length data of the pressure plate 11. The density of the slurry is detected at each step, and the area with high density and waiting to be processed is recorded. The position of the area with high density and waiting to be processed is recorded relative to the length direction of the guide rail according to the rotation speed of the servo motor, and the position of each area with high density and waiting to be processed along the width direction between the two guide rails 1 is recorded according to the left and right order of each pressure plate.

[0057] S5: After the device moves to the set position, the controller draws a distribution map of the areas with high density and to be processed according to a preset program, such as... Figure 5 As shown;

[0058] S6: Driven by the drive mechanism, the device moves in the opposite direction. During the movement, the second reduction motor drives the second drum body to rotate, and performs longitudinal stirring on the area with high density and to be treated and its surroundings (i.e., stirring while moving longitudinally). The first reduction motor drives the first drum body to rotate, and performs transverse stirring on the area with high density and to be treated and its surroundings. In this process, the area with high density and to be treated is first stirred longitudinally, and then the area with high density and to be treated after longitudinal stirring is treated by transverse stirring.

[0059] S7: After the device moves to the starting position, repeat steps S1-S5. If there are still areas with high density that need to be processed, continue to complete steps S5 and S6, and then repeat steps S1-S5 again until there are no areas with high density that need to be processed in step S5. Then the device returns to the starting position, and the first stirring rod is disengaged from the slurry surface by the electric cylinder 2. The second stirring rod is disengaged from the slurry surface by adjustment. Then, the third stirring rod is adjusted to the preset height of the airport runway surface. The third stirring rod is moved by the drive mechanism to perform slurry kneading and rolling operations.

[0060] like Figure 1-6 As shown, in step S7, during the rubbing process, the motor locks the roller body three, preventing it from rotating; during the kneading process, the motor unlocks the roller body three, allowing it to roll naturally as it comes into contact with the surface of the pulp.

[0061] This invention, through the above-described design, solves the problem of quality defects in airport pavement panels caused by uneven density on the surface of the slurry, improves existing slurry kneading techniques, and can significantly improve the construction quality of airport pavement.

Claims

1. A device for kneading and finishing concrete pavement for airport runways, characterized in that: The device includes a controller, two parallel guide rails, and a fixing plate above the guide rails. The fixing plate is connected to the guide rails via a drive mechanism. The fixing plate is provided with a slurry density detection mechanism, a slurry surface transverse mixing mechanism, a slurry surface longitudinal mixing mechanism, and a kneading mechanism in sequence along the front-back direction. The controller is electrically connected to a power source and is electrically connected to the drive mechanism, the slurry density detection mechanism, the slurry surface transverse mixing mechanism, the slurry surface longitudinal mixing mechanism, and the kneading mechanism via wires.

2. The device for kneading and finishing airport pavement concrete as described in claim 1, characterized in that: The guide rails are respectively set on the outside of the pavement template. A sliding plate is slidably connected to the upper end of the guide rail. The top of the sliding plate is fixedly connected to the side end of the fixed plate through an L-shaped connecting plate. The drive mechanism includes a servo motor mounted on a sliding plate on both sides. The servo motor is fixed to the upper end of the sliding plate, and its output shaft rotatably passes through the sliding plate and is fixedly connected to a drive gear. A rack structure is embedded in the outer surface of the guide rail along the length direction. The driving gear meshes with the rack structure, and the bottom of the sliding plates on both sides is also rotatably connected to the driven gear via a longitudinal shaft. The driven gear meshes with the rack structure, and the two servo motors are electrically connected to the controller via wires and move synchronously under the control of the controller.

3. The device for kneading and sizing airport pavement concrete as described in claim 2, characterized in that: The slurry density testing mechanism includes several first electric cylinders arranged side by side at the front end of the fixed plate in the left-right direction. The first electric cylinders are arranged in the longitudinal direction, the cylinder barrel of the first electric cylinder passes through the fixed plate and is fixedly connected to the fixed plate, and the piston rod end of the first electric cylinder is connected to a pressure plate through a pressure sensor. The pressure plate is a rectangular plate with a gap fit between adjacent pressure plates. The first electric cylinder is electrically connected to the controller via a wire. The slurry density detection mechanism detects the density of the slurry surface under the control of the controller and performs slurry pressing operation on the slurry surface through the pressure plate under the control of the controller.

4. The airport pavement concrete kneading and surface-forming device as described in claim 3, characterized in that: The slurry surface transverse mixing mechanism includes a linear drive mechanism and a moving base, wherein the linear drive mechanism drives the moving base to move in the left-right direction; The top of the movable seat is slidably connected to the bottom of the fixed plate. A second electric cylinder is fixedly provided at the bottom of the movable seat along the longitudinal direction. The fixed end of the second electric cylinder is fixedly connected to the movable seat, and the telescopic end is rotatably connected to the stirring drum through the drum bracket. The stirring drum includes a drum body and a plurality of first stirring rods evenly distributed on the surface of the drum body. The second electric cylinder is electrically connected to the controller via a wire.

5. The airport pavement concrete kneading and surface-forming device as described in claim 4, characterized in that: The two ends of the roller body are rotatably connected to the roller bracket. One end of the roller bracket is fixedly equipped with a geared motor. The output shaft of the geared motor is fixedly connected to the end of the central shaft of the roller body. The geared motor is electrically connected to the controller through wires.

6. The airport pavement concrete kneading and surface-forming device as described in claim 5, characterized in that: The linear drive mechanism includes a lead screw that is rotatably connected between two L-shaped connecting plates in the left-right direction. The movable seat is screwed to the lead screw. A drive motor is fixedly connected to the outer end of the vertical section. The output shaft of the drive motor is fixedly connected to the end of the lead screw. The drive motor is electrically connected to the controller through a wire.

7. The airport pavement concrete kneading and surface-forming device as described in claim 6, characterized in that: The longitudinal mixing mechanism for the slurry surface includes a mixing drum arranged in the left-right direction. The mixing drum includes a drum body two. Several second mixing rods are evenly distributed on the outer surface of the drum body two. The two ends of the drum body two are respectively rotatably connected to a mounting plate one. The top end of the mounting plate one passes through a fixing plate through a threaded screw one and is fixed relative to the fixing plate by a limiting nut. A reduction motor two is fixedly installed on the outer surface of the mounting plate one. The output shaft of the reduction motor two is fixedly connected to the end of the roller shaft of the drum body two. The reduction motor two is electrically connected to a controller through a wire. The width of the mixing drum matches the construction width of the airport pavement.

8. The airport pavement concrete kneading and surface-forming device as described in claim 7, characterized in that: The kneading mechanism includes a kneading roller arranged in the left-right direction. The kneading roller includes a roller body three. The two ends of the roller body three are respectively rotatably connected to mounting plates two. The top of the mounting plates two is fixedly connected to a threaded screw two arranged in the longitudinal direction. The two threaded screws two pass through the fixed plate and are fixed to the fixed plate relative to the fixed plate through limit nuts. An electric motor is fixedly mounted on the outer surface of the mounting plate two. The output shaft of the electric motor is fixedly connected to the end of the central shaft of the roller body three. The electric motor is electrically connected to the controller through wires.

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