Airfield pavement cement kneading device and method

Abstract

The invention relates to the technical field of airport pavement construction, in particular to an airport pavement cement kneading device and method. The device comprises a controller and two guide rails arranged side by side, a fixing plate is arranged above the guide rails, the fixing plate is connected with the guide rails through a driving mechanism, and the fixing plate is sequentially provided with a slurry compactness detection mechanism, a slurry surface transverse uniform mixing mechanism, a slurry surface longitudinal uniform mixing mechanism and a slurry kneading mechanism in the front-back direction. The method comprises the steps of slurry compactness detection, uniform stirring and mixing, slurry rubbing and slurry rubbing. According to the invention, the problem of quality defects of the 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] The invention relates to the technical field of airport pavement construction, and in particular to a cement slurry kneading device and method for an airport pavement. Background Art

[0002] At present, cement concrete pavement is basically used in the runway projects 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 kneading process is adopted. The quality of the roller kneading directly affects the thickness and uniformity of the mortar on the surface of the cement concrete, thereby determining the flatness, texture depth, durability and service life of the pavement panel.

[0003] However, in the traditional construction process, the reciprocating rolling, pushing and pulling of rollers to knead the slurry is just a simple rolling bar to knead the slurry, which has a simple structure and a single function and cannot meet the needs of high-quality airport pavement. Figure 4 As shown in the figure, after the mortar is placed in the pavement mold, the mortar surface is not flat and has many protruding parts. During the kneading process, the protruding parts are simply pressed into the mortar, which will cause several local high-density areas on the top of the mortar, resulting in uneven density on the mortar surface, affecting the quality of the subsequent pavement after forming. Since airport pavements involve major safety issues, it is necessary to improve the above problems. Summary of the invention

[0004] Based on the problems existing in the prior art, the present invention provides a cement slurry kneading device and method for airport pavement, which can realize slurry 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 the present invention is:

[0006] A cement slurry kneading device for an airport pavement comprises a controller and two guide rails arranged side by side. A fixed plate is arranged above the guide rails, the fixed plate is connected to the guide rails through a driving mechanism, and a slurry density detection mechanism, a slurry surface transverse mixing mechanism, a slurry surface longitudinal mixing mechanism, and a slurry kneading mechanism are arranged on the fixed plate in sequence along the front-to-back direction. The controller is electrically connected to a power supply and is electrically connected to the driving mechanism, the slurry density detection mechanism, the slurry surface transverse mixing mechanism, the slurry surface longitudinal mixing mechanism, and the slurry kneading mechanism through wires, respectively.

[0007] Preferably, the guide rails are respectively arranged on the outside of the road surface template, and the upper end of the guide rail is slidably connected to a sliding plate, and the top of the sliding plate is fixedly connected to the side end of the fixed plate through an L-shaped connecting plate. The driving mechanism includes a servo motor arranged on the sliding plates on both sides, and the servo motor is fixed to the upper end of the sliding plate, and the output shaft rotatably passes through the sliding plate and is fixedly connected to a driving gear. A rack structure is embedded in the outer surface of the guide rail along the length direction, and the driving gear is meshed with the rack structure. The bottom of the sliding plates on both sides are also rotatably connected to driven gears through the longitudinal axis, and the driven gear is meshed with the rack structure. The two servo motors are electrically connected to the controller through wires and move synchronously under the control of the controller.

[0008] Preferably, the slurry density detection mechanism includes a plurality of 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, 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, and adjacent pressure plates are gap-fitted, the first electric cylinder is electrically connected to the controller through a wire, and the slurry density detection mechanism detects the density of the slurry surface under the control of the controller, and performs slurry pressing operations on the slurry surface through the pressure plate under the control of the controller.

[0009] Preferably, the slurry surface transverse mixing mechanism includes a linear drive mechanism and a movable seat, the linear drive mechanism drives the movable seat to move in the left and right directions, 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 a stirring roller through a roller bracket, the stirring roller includes a roller body and a plurality of first stirring rods evenly distributed on the surface of the roller body, and the second electric cylinder is electrically connected to the controller through a wire.

[0010] Preferably, both ends of the drum body 1 are rotatably connected to the drum bracket, a reduction motor 1 is fixedly provided at one end of the drum bracket, an output shaft of the reduction motor 1 is fixedly connected to the end of the central axis of the drum body 1, and the reduction motor 1 is electrically connected to the controller through a wire.

[0011] Preferably, the linear drive mechanism includes a lead screw that is rotatable along the left-right direction and connected between the vertical sections of the two L-shaped connecting plates, the movable seat is threadedly connected to the lead screw, the outer end of the vertical section is fixedly connected to a drive motor, 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 via a wire.

[0012] Preferably, the longitudinal mixing mechanism on the slurry surface includes a mixing drum arranged along the left and right directions, the mixing drum includes a roller body 2, a plurality of second stirring rods are evenly distributed on the outer surface of the roller body 2, both ends of the roller body 2 are rotatably connected with a mounting plate 1, the top of the mounting plate 1 passes through a fixing plate through a threaded screw 1 and is relatively fixed to the fixing plate through a limit nut, a reduction motor 2 is fixedly provided on the outer surface of the mounting plate 1, the output shaft of the reduction motor 2 is fixedly connected to the roller shaft end of the roller body 2, the reduction motor 2 is electrically connected to the controller through a wire, and the width of the mixing drum matches the construction width of the airport pavement.

[0013] Preferably, the kneading mechanism includes a kneading roller arranged along the left and right directions, the kneading roller includes a roller body three, both ends of the roller body three are rotatably connected with mounting plates two, the top of the mounting plate two is fixedly connected with threaded screws two arranged along the longitudinal direction, the two threaded screws two penetrate the fixing plate and are relatively fixed to the fixing plate through limiting nuts, an electric motor is fixedly provided 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 axis of the roller body three, and the electric motor is electrically connected to the controller through a wire.

[0014] A method for using an airport pavement cement slurry kneading device comprises the following steps:

[0015] S1: Arrange the device at the construction position of the airport pavement, so that the guide rails are located on both sides of the pavement template, the fixed plate faces the slurry distribution area of ​​the pavement, and adjust the guide rail surface to be parallel to the preset airport pavement top;

[0016] S2: The controller controls the driving mechanism to move the pressing plate to the starting position of the slurry that has been preliminarily leveled, and starts the first electric cylinders. Each of the first electric cylinders extends to the same set length. The controller records the data of the pressure sensors installed on each electric cylinder, and determines that the position with a high pressure value is an area with high density, and the position with a low pressure value is an area with low density.

[0017] S3: The controller controls each first electric cylinder to synchronously and repeatedly extend and retract, so that the pressing plate slaps the slurry surface with the same amplitude to perform grouting. When the values ​​detected by each pressure sensor are within the set error range, it is considered that the slurry density of the slurry area where each pressing plate is located is evenly adjusted through the grouting action; on the contrary, after the set number of grouting actions, the pressure values ​​detected in the areas corresponding to some pressing plates are still higher than the pressure detection values ​​of the areas where other pressing plates are located, and the higher values ​​are above the set value, then the area with high pressure value is recorded as the area with high density and to be processed;

[0018] S4: The driving mechanism drives the fixed plate to move forward in steps according to the length data of the pressing plate, and the slurry density is detected at each step, and finally a record is made of the area with high density and to be processed; the position of the area with high density and to be processed relative to the length direction of the guide rail is recorded according to the speed of the servo motor, and the position of each area with high density and to be processed along the width direction between the two guide rails is recorded according to the order of the left and right directions of each pressing plate;

[0019] S5: After the device moves to the set position, the controller draws a distribution map of the area with high density and to be treated according to the preset program;

[0020] S6: Driven by the driving mechanism, the device moves in the reverse direction. During the movement, the second reduction motor drives the second roller body to rotate, and longitudinally stirs the area with high density and to be treated and its surroundings; the first reduction motor drives the first roller body to rotate, and transversely stirs 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 firstly passed through the longitudinal stirring, and then the area with high density and to be treated after the longitudinal stirring is processed through transverse stirring;

[0021] S7: After the device moves to the starting position, repeat steps S1-S5. If there are still areas with high density to be processed, continue to complete steps S5 and S6, and then repeat steps S1-S5 until there are no areas with high density to be processed in step S5. The device returns to the starting position, and the roller body one is retracted by the electric cylinder two to separate the first stirring rod from the slurry surface. The roller body two and the second stirring rod are separated from the slurry surface by adjustment. Then, the roller body three is adjusted to the preset height of the airport pavement, and the roller body three is moved by the driving mechanism to perform slurry rubbing and kneading operations.

[0022] Preferably, in the step S7, when rubbing the pulp, the motor locks the roller body three so that the roller body three does not rotate; when kneading the pulp, the motor unlocks the roller body three so that the roller body three rolls naturally as it contacts the pulp surface.

[0023] The airport pavement cement slurry kneading device and method of the present invention have the following beneficial effects:

[0024] The invention solves the problem of quality defects of airport pavement panels caused by uneven density of the slurry surface, improves the existing slurry kneading technology, and can significantly improve the construction quality of the airport pavement. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 , a front view schematic diagram of the structure of the device of the present invention;

[0026] Figure 2 , a side structural cross-sectional view of the device of the present invention;

[0027] Figure 3 , a schematic diagram of the top view of the structure of the device of the present invention;

[0028] Figure 4 , Schematic diagram of uneven density of slurry surface;

[0029] Figure 5 , a distribution map of the area on the slurry surface with high compactness and to be treated drawn by the controller of the present invention according to a preset program;

[0030] Figure 6 , a schematic structural diagram of the pulp kneading roller of the present invention.

[0031] 1: guide rail, 2: road surface template, 3: slurry, 31: accumulated mortar, 32: high density area, 4, servo motor; 5, rack 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: driving motor, 14: mixing drum, 15: reduction motor 2, 16: second stirring rod, 17: moving seat, 18: second electric cylinder, 19: stirring drum, 20: through-thread screw 1; 21: limiting nut, 22: driving gear, 23: driven gear; 24, first stirring rod; 25, kneading drum; 26, electric motor; 27, through-thread screw 2. DETAILED DESCRIPTION

[0032] The following describes in detail the implementation mode of the present invention in a step-by-step manner. The description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore cannot be understood as a limitation on the present invention.

[0034] Example 1

[0035] A cement slurry kneading device for an airport pavement, such as Figure 1-6As shown, it includes a controller and two guide rails 1 arranged side by side. A fixed plate 6 is provided above the guide rail 1. The fixed plate 6 is connected to the guide rail 1 through a driving mechanism. The fixed plate 6 is provided with a slurry density detection mechanism, a slurry surface transverse mixing mechanism, a slurry surface longitudinal mixing mechanism, and a slurry kneading mechanism in sequence along the front-to-back direction. The controller is electrically connected to the power supply, and is electrically connected to the driving mechanism, the slurry density detection mechanism, the slurry surface transverse mixing mechanism, the slurry surface longitudinal mixing mechanism, and the slurry kneading mechanism through wires respectively.

[0036] In this embodiment, the function of the slurry density detection mechanism is:

[0037] 1. Preliminarily detect the uneven density of the slurry surface and adjust the density of each area through grouting action;

[0038] 2. Finally, the areas with high surface density of the slurry and waiting to be treated are screened out.

[0039] The density is represented by the pressure value detected by the pressure sensor. The location with a large pressure value represents high density, and vice versa. The grouting action can disperse the mortar at high density by repeatedly beating the slurry surface, thereby reducing the excessively high density there, and thus achieving preliminary uniformity of density at each location.

[0040] Finally, the high-density locations that cannot be mixed evenly by grouting are recorded as areas with high surface density and to be treated. Through comprehensive testing, a distribution map of areas with high surface density and to be treated can be drawn, thereby achieving a comprehensive understanding of the surface density distribution of the airport pavement slurry.

[0041] The transverse mixing mechanism and the longitudinal mixing mechanism on the slurry surface are used to stir the screened high-density areas and their surroundings to achieve uniform density on the slurry surface. After uniform adjustment, the slurry is rubbed and kneaded through the slurry kneading mechanism.

[0042] It should be noted that if Figure 4 As shown, due to uneven distribution or inability to achieve full leveling during the leveling process, there is accumulated mortar 31 on the surface of the slurry 3. After the slurry is rubbed or kneaded by the slurry kneading mechanism, the accumulated mortar 31 is only pressed below the slurry surface, resulting in a high-density area 32 on the slurry surface. This high-density area 32 only appears at a certain position on the slurry surface and floats on the upper layer of the slurry. Therefore, this uneven density phenomenon easily causes the quality of the airport pavement to decline.

[0043] Example 2

[0044] Based on Example 1, this example is improved as follows: Figure 1-3As shown, the guide rails 1 are respectively arranged on the outside of the road surface template 2, and the upper end of the guide rail 1 is slidably connected with a sliding plate 8. The top end 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 a servo motor 4 arranged on the sliding plates 8 on both sides.

[0045] The servo motor 4 is fixed to the upper end of the sliding plate 8, and the output shaft can rotatably penetrate the sliding plate 8 and is fixedly connected to the driving gear 22. The outer surface of the guide rail 1 is embedded with a rack structure 5 along the length direction. The driving gear 22 is meshed and connected with the rack structure 5. The bottom of the sliding plates 8 on both sides are also rotatably connected with driven gears 23 through the longitudinal axis. The driven gear 23 is meshed and connected 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.

[0046] Example 3

[0047] Based on embodiments 1 and 2, this embodiment is improved as follows: Figure 1-3 As shown, the slurry density detection mechanism includes a plurality of first electric cylinders 9 arranged side by side at the front end of the fixed plate 6 along the left-right direction, the first electric cylinders 9 are arranged longitudinally, the cylinder barrels of the first electric cylinders 9 penetrate the fixed plate 6 and are fixedly connected to the fixed plate 6, and the piston rod ends of the first electric cylinders 9 are connected to the pressure plate 11 through the pressure sensor 10.

[0048] The pressing plate 11 is a rectangular plate, and adjacent pressing plates 11 are gap-fitted. The first electric cylinder 9 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 slurrying operations on the slurry surface through the pressing plate 11 under the control of the controller.

[0049] Example 4

[0050] 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 movable seat 17. The linear drive mechanism drives the movable seat 17 to move in the left and right directions. The top of the movable seat 17 is slidably connected to the bottom of the fixed plate 6. The bottom of the movable seat 17 is longitudinally fixed with a second electric cylinder 18. The fixed end of the second electric cylinder 18 is fixedly connected to the movable seat 17, and the telescopic end is rotatably connected to a stirring roller 19 through a roller bracket. The stirring roller 19 includes a roller body and a plurality of first stirring rods 24 evenly distributed on the surface of the roller body. The second electric cylinder 18 is electrically connected to the controller through a wire.

[0051] like Figure 1As shown, both ends of the roller body 1 are rotatably connected to the roller bracket, a reduction motor 1 (not marked in the figure) is fixedly provided at one end of the roller bracket, the output shaft of the reduction motor 1 is fixedly connected to the end of the central axis of the roller body 1, and the reduction motor 1 is electrically connected to the controller through a wire.

[0052] like Figure 1-3 As shown, the linear drive mechanism includes a lead screw 12 that is rotatable along the left-right direction and connected between the vertical sections of the two L-shaped connecting plates 7, the movable seat 17 is screwed to the lead screw 12, the outer end of the vertical section is fixedly connected to a drive motor 13, the output shaft of the drive motor 13 is fixedly connected to the end of the lead screw 12, and the drive motor 13 is electrically connected to the controller through a wire.

[0053] In this embodiment, the second electric cylinder is used to adjust the height of the stirring drum 19, the reduction motor 1 is used to control the rotation speed of the stirring drum 19, and the linear drive mechanism is used to move the stirring drum 19 in the left and right directions to achieve horizontal mixing of the slurry surface density.

[0054] Example 5

[0055] Based on embodiments 1, 2, 3, and 4, this embodiment is improved as follows:

[0056] like Figure 1-3 As shown, the slurry surface longitudinal mixing mechanism includes a mixing drum 14 arranged in the left and right directions, the mixing drum 14 includes a roller body 2, and a plurality of second stirring rods 16 are evenly distributed on the outer surface of the roller body 2. The two ends of the roller body 2 are rotatably connected with a mounting plate 1, and the top of the mounting plate 1 passes through the fixed plate 6 through a through-thread screw 1 20 and is relatively fixed to the fixed plate 6 through a limiting nut 21 (there are two limiting nuts, which are respectively provided on the through-thread screw 1 where the upper and lower ends of the fixed plate are located). The outer surface of the mounting plate 1 is fixedly provided with a reduction motor 2 15, and the output shaft of the reduction motor 2 15 is fixedly connected to the roller shaft end of the roller body 2. The reduction motor 2 15 is electrically connected to the controller through a wire, and the width of the mixing drum 14 matches the construction width of the airport pavement. The reduction motor 2 is used to drive the mixing drum 14 to rotate and stir and mix the slurry surface in the longitudinal direction.

[0057] Example 6

[0058] Based on embodiments 1, 2, 3, 4, and 5, this embodiment is improved as follows:

[0059] like Figure 1-3As shown in Figure 6, the pulp kneading mechanism includes a pulp kneading roller 25 arranged in the left and right directions, and the pulp kneading roller 25 includes a roller body 3, and the two ends of the roller body 3 are rotatably connected to the mounting plate 2, and the top of the mounting plate 2 is fixedly connected to the through-thread screw 27 arranged in the longitudinal direction, and the two through-thread screws 27 penetrate the fixing plate 6 and are relatively fixed to the fixing plate 6 through limiting nuts (there are two limiting nuts, which are respectively provided on the through-thread screws 2 where the upper and lower ends of the fixing plate are located), and the outer surface of the mounting plate 2 is fixedly provided with a motor 26, and the output shaft of the motor 26 is fixedly connected to the end of the central axis of the roller body 3, and the motor 26 is electrically connected to the controller through a wire. The motor is used to lock or unlock the roller body 3.

[0060] Example 7

[0061] Based on the above embodiments, this embodiment discloses a method for using an airport pavement cement slurry kneading device, such as Figure 1-6 As shown, the following steps are included:

[0062] S1: Arrange the device at the construction position of the airport pavement, so that the guide rail 1 is located on both sides of the pavement template 2, the fixing plate 6 faces the slurry distribution area of ​​the pavement, and adjust the guide rail surface to be parallel to the preset airport pavement top;

[0063] S2: The controller controls the driving mechanism to move the pressing plate 11 to the starting position of the slurry 3 that has been preliminarily leveled, and starts the first electric cylinders. Each first electric cylinder 9 extends to the same set length. The controller records the data of the pressure sensors installed on each electric cylinder, and determines that the position with a high pressure value is an area with high density, and the position with a low pressure value is an area with low density.

[0064] S3: The controller controls each first electric cylinder 9 to synchronously and repeatedly extend and retract, so that the pressing plate 11 slaps the slurry surface with the same amplitude to perform grouting. When the value detected by each pressure sensor 10 is within the set error range, it is considered that the slurry density of the slurry area where each pressing plate 11 is located is evenly adjusted through the grouting action; on the contrary, after the set number of grouting actions, the pressure values ​​detected in the areas corresponding to some pressing plates 11 are still higher than the pressure detection values ​​of the areas where other pressing plates are located, and the higher values ​​are above the set value, then the area with high pressure value is recorded as the area with high density and to be processed;

[0065] S4: The driving mechanism drives the fixed plate to move forward in steps according to the length data of the pressing plate 11, and the slurry density is detected at each step, and finally a record is made of the area with high density and to be processed; the position of the area with high density and to be processed relative to the length direction of the guide rail is recorded according to the speed of the servo motor, and the position of each area with high density and to be processed along the width direction between the two guide rails 1 is recorded according to the order of the left and right directions of each pressing plate;

[0066] S5: After the device moves to the set position, the controller draws a distribution map of the area with high density and to be treated according to the preset program, such as Figure 5 As shown;

[0067] S6: Driven by the driving mechanism, the device moves in the reverse direction. During the movement, the second reduction motor drives the second roller body to rotate, and longitudinally stirs the area with high density and to be treated and its surroundings (i.e., stirs while moving longitudinally); the first reduction motor drives the first roller body to rotate, and transversely stirs 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 firstly passed through the longitudinal stirring, and then the area with high density and to be treated after the longitudinal stirring is processed by transverse stirring;

[0068] S7: After the device moves to the starting position, repeat steps S1-S5. If there are still areas with high density to be processed, continue to complete steps S5 and S6, and then repeat steps S1-S5 until there are no areas with high density to be processed in step S5. The device returns to the starting position, and the roller body one is retracted by the electric cylinder two to separate the first stirring rod from the slurry surface. The roller body two and the second stirring rod are separated from the slurry surface by adjustment. Then, the roller body three is adjusted to the preset height of the airport pavement, and the roller body three is moved by the driving mechanism to perform slurry rubbing and kneading operations.

[0069] like Figure 1-6 As shown, in the step S7, when rubbing the pulp, the motor locks the roller body three so that the roller body three does not rotate; when kneading the pulp, the motor unlocks the roller body three so that the roller body three rolls naturally as it contacts the pulp surface.

[0070] The present invention solves the problem of quality defects of airport pavement panels caused by uneven density of the slurry surface through the above arrangement, improves the existing slurry kneading technology, and can significantly improve the construction quality of the airport pavement.

Claims

1. An airport pavement cement slurry kneading device, characterized by: It includes a controller, two guide rails arranged side by side, a fixed plate is arranged above the guide rails, the fixed plate is connected to the guide rails through a driving mechanism, and 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 slurry kneading mechanism in sequence along the front-back direction; The controller is electrically connected to the power supply, and is electrically connected to the driving mechanism, the slurry density detection mechanism, the slurry surface transverse mixing mechanism, the slurry surface longitudinal mixing mechanism, and the slurry kneading mechanism through wires respectively; The guide rails are respectively arranged on the outside of the pavement template, and the upper ends of the guide rails are slidably connected with sliding plates. The slurry density detection mechanism includes a plurality of first electric cylinders arranged side by side at the front end of the fixed plate in the left-right direction; The slurry surface transverse mixing mechanism includes a linear drive mechanism and a moving seat. The linear drive mechanism drives the moving seat to move along the left and right directions. The slurry surface longitudinal mixing mechanism includes a mixing cylinder arranged along the left and right directions.

2. The airport pavement cement slurry kneading device as claimed in claim 1, characterized in that: The top end of the sliding plate is fixedly connected to the side end of the fixed plate through an L-shaped connecting plate, and the driving mechanism includes servo motors arranged on the sliding plates on both sides; The servo motor is fixed to the upper end of the sliding plate, and the output shaft rotatably penetrates the sliding plate and is fixedly connected to the driving gear, and a rack structure is embedded on the outer surface of the guide rail along the length direction; The driving gear is meshed with the rack structure, and the bottom of the sliding plates on both sides are also connected to the driven gears through longitudinal axis rotation. The driven gear is meshed with the rack structure, and the two servo motors are electrically connected to the controller through wires and move synchronously under the control of the controller.

3. The airport pavement cement slurry kneading device as claimed in claim 2, characterized in that: The first electric cylinder is arranged in the longitudinal direction, the cylinder barrel of the first electric cylinder passes through the fixing plate and is fixedly connected to the fixing plate, and the end of the piston rod of the first electric cylinder is connected to the pressure plate through a pressure sensor; The pressing plate is a rectangular plate, and adjacent pressing plates are gap-fitted. 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 operations on the slurry surface through the pressing plate under the control of the controller.

4. The airport pavement cement slurry kneading device as claimed in claim 3, characterized in that: The top end of the movable seat is slidably connected to the bottom end of the fixed plate, and a second electric cylinder is fixedly arranged at the bottom end of the movable seat in 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 roller through the roller bracket. The stirring roller includes a roller body and a plurality of first stirring rods evenly distributed on the surface of the roller body. The second electric cylinder is electrically connected to the controller through a wire.

5. The airport pavement cement slurry kneading device as claimed in claim 4, characterized in that: The two ends of the roller body 1 are rotatably connected to the roller bracket, one end of the roller bracket is fixedly provided with a reduction motor 1, the output shaft of the reduction motor 1 is fixedly connected to the end of the central axis of the roller body 1, and the reduction motor 1 is electrically connected to the controller through a wire.

6. The airport pavement cement slurry kneading device as claimed in claim 5, characterized in that: The linear drive mechanism includes a lead screw that rotates along the left and right directions and is connected between the vertical sections of the two L-shaped connecting plates. The movable seat is threadedly connected to the lead screw. The outer end of the vertical section is fixedly connected to a drive motor. 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 via a wire.

7. The airport pavement cement slurry kneading device as claimed in claim 6, characterized in that: The mixing drum comprises a drum body 2, a plurality of second stirring rods are evenly distributed on the outer surface of the drum body 2, and both ends of the drum body 2 are rotatably connected with a mounting plate 1, and the top end of the mounting plate 1 penetrates the fixing plate through a threaded screw 1 and is relatively fixed to the fixing plate through a limiting nut; A reduction motor 2 is fixedly provided on the outer surface of the mounting plate 1, the output shaft of the reduction motor 2 is fixedly connected to the roller shaft end of the drum body 2, the reduction motor 2 is electrically connected to the controller through a wire, and the width of the mixing drum matches the airport pavement construction width.

8. The airport pavement cement slurry kneading device as claimed in claim 7, characterized in that: The kneading mechanism includes a kneading roller arranged along the left and right directions, the kneading roller includes a roller body three, both ends of the roller body three are rotatably connected with mounting plates two, the top of the mounting plate two is fixedly connected with threaded screws two arranged along the longitudinal direction, the two threaded screws two penetrate the fixing plate and are relatively fixed to the fixing plate through limiting nuts, an electric motor is fixedly provided 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 axis of the roller body three, and the electric motor is electrically connected to the controller through a wire.

9. The method for using the airport pavement cement slurry kneading device as claimed in claim 8, characterized in that it comprises the following steps: S1: Arrange the device at the construction position of the airport pavement, so that the guide rails are located on both sides of the pavement template, the fixed plate faces the slurry distribution area of ​​the pavement, and adjust the guide rail surface to be parallel to the preset airport pavement top; S2: The controller controls the driving mechanism to move the pressing plate to the starting position of the slurry that has been preliminarily leveled, and starts the first electric cylinders. Each of the first electric cylinders extends to the same set length. The controller records the data of the pressure sensors installed on each electric cylinder, and determines that the position with a high pressure value is an area with high density, and the position with a low pressure value is an area with low density. S3: The controller controls each first electric cylinder to synchronously and repeatedly extend and retract, so that the pressing plate slaps the slurry surface with the same amplitude to perform grouting. When the values ​​detected by each pressure sensor are within the set error range, it is considered that the slurry density of the slurry area where each pressing plate is located is evenly adjusted through the grouting action; on the contrary, after the set number of grouting actions, the pressure values ​​detected in the areas corresponding to some pressing plates are still higher than the pressure detection values ​​of the areas where other pressing plates are located, and the higher values ​​are above the set value, then the area with high pressure value is recorded as the area with high density and to be processed; S4: The driving mechanism drives the fixed plate to move forward in steps according to the length data of the pressing plate, and the slurry density is detected at each step, and finally a record is made of the area with high density and to be processed; the position of the area with high density and to be processed relative to the length direction of the guide rail is recorded according to the speed of the servo motor, and the position of each area with high density and to be processed along the width direction between the two guide rails is recorded according to the order of the left and right directions of each pressing plate; S5: After the device moves to the set position, the controller draws a distribution map of the area with high density and to be treated according to the preset program; S6: Driven by the driving mechanism, the device moves in the reverse direction. During the movement, the second reduction motor drives the second roller body to rotate, and longitudinally stirs the area with high density and to be treated and its surroundings; the first reduction motor drives the first roller body to rotate, and transversely stirs 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 firstly passed through the longitudinal stirring, and then the area with high density and to be treated after the longitudinal stirring is processed through transverse stirring; S7: After the device moves to the starting position, repeat steps S1-S5. If there are still areas with high density to be processed, continue to complete steps S5 and S6, and then repeat steps S1-S5 until there are no areas with high density to be processed in step S5. The device returns to the starting position, and the roller body one is retracted by the electric cylinder two to separate the first stirring rod from the slurry surface. The roller body two and the second stirring rod are separated from the slurry surface by adjustment. Then, the roller body three is adjusted to the preset height of the airport pavement, and the roller body three is moved by the driving mechanism to perform slurry rubbing and kneading operations.

10. The method for using the airport pavement cement slurry kneading device as claimed in claim 9, characterized in that: In the step S7, when rubbing the pulp, the motor locks the roller body three so that the roller body three does not rotate; when kneading the pulp, the motor unlocks the roller body three so that the roller body three rolls naturally as it contacts the pulp surface.

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