A construction device and method for facilitating the paving of a cement stabilized macadam base

Abstract

This application relates to a construction device and method for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces, belonging to the technical field of municipal road paving devices. It includes channel steel located on both sides of the road surface to be paved, the channel steel being arranged along the length of the road surface. A mixture is spread between the two channel steel layers. An installation frame is provided across the two channel steel layers, slidably mounted on the channel steel and sliding along the length of the channel steel. A recycling box is slidably mounted on the installation frame, sliding both along the width of the road surface and perpendicular to the road surface. The recycling box is cylindrical, and a scraper is rotatably mounted on it. An inlet is provided on the side wall of the recycling box corresponding to the scraper. The scraper rotates to scrape away the mixture on the road surface, and the mixture enters the recycling box through the inlet. A first driving component is provided on the recycling box to drive the scraper to rotate. This application has the effect of reducing the workload of construction workers.

Description

Technical Field

[0001] This application relates to the field of municipal road paving equipment technology, and in particular to a construction device and method for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces. Background Technology

[0002] Cement-stabilized crushed stone is used in the structural composition of semi-rigid base courses for highways. Due to its good integrity, water stability, frost resistance, as well as the advantages of local sourcing, convenient construction, high early strength, large bearing capacity, and mature technology, more and more countries are using it extensively in highway base courses.

[0003] Cement-stabilized crushed stone uses graded crushed stone as aggregate, with a certain amount of cementitious material and sufficient mortar volume to fill the voids in the aggregate, and is spread and compacted according to the interlocking principle. Its compaction degree is close to its density, and its strength mainly relies on the interlocking and bonding principle between the crushed stones, while sufficient mortar volume fills the voids in the aggregate. It has high initial strength, and its strength increases rapidly with age, quickly forming a slab, thus possessing high strength, good impermeability, and good frost resistance. The cement content in cement-stabilized crushed stone is generally 3% to 6% of the mixture, and its 7-day unconfined compressive strength can reach 5.0 MPa, higher than other subgrade materials. After cement-stabilized crushed stone is established, it does not become muddy after rain, and its surface is firm, making it an ideal base course material for high-grade pavements.

[0004] When laying cement-stabilized crushed stone base course, the mixed material from the mixing plant is transported to the road surface to be paved by engineering vehicles. The mixed material in the engineering vehicles is then transferred to the hopper of the paver. The paver lays the mixed material in the hopper on the road surface according to the designed path. After multiple compactions by the road roller, the road surface is then cured to complete the construction of the cement-stabilized crushed stone base course.

[0005] However, after the mixture is mixed, segregation is prone to occur during transportation, transfer, and paving. Segregation leads to uneven material gradation in some areas, resulting in insufficient compaction during construction and increased porosity. The local strength of the segregated base layer does not meet the design requirements. Under heavy loads, local deformation increases, and the pavement will crack and deteriorate due to the reflection of this deformation. At the same time, the high porosity makes it easy for water to seep in. If water seeps into the subgrade through this area, it will damage the subgrade, and in severe cases, it will cause local subsidence. Therefore, during the paving of the mixture, construction workers need to follow the paver. When segregation is found, the construction workers need to immediately remove the segregated material and replace it with a qualified mixture, resulting in a high workload for the construction workers. Summary of the Invention

[0006] To reduce the workload of construction workers, this application provides a construction device and method for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces.

[0007] Firstly, this application provides a construction device for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces, employing the following technical solution:

[0008] A construction device for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces includes channel steels located on both sides of the road surface to be paved. The channel steels are arranged along the length of the road surface, and a mixture is spread between the two channel steel layers. An installation frame is arranged across the two channel steels and is slidably mounted on the channel steels. The installation frame slides along the length of the channel steels. A recycling box is slidably mounted on the installation frame. The recycling box slides along the width of the road surface and along a direction perpendicular to the road surface. The recycling box is cylindrical and has a scraper rotatably mounted on it. A feed inlet is opened on the side wall of the recycling box corresponding to the scraper. The scraper rotates to scrape off the mixture on the road surface and the mixture enters the recycling box through the feed inlet. A first driving component is provided on the recycling box to drive the scraper to rotate.

[0009] Optionally, the first driving component includes a mounting ring rotatably mounted on the recycling bin and a first motor mounted on the recycling bin. The scraper is fixedly mounted on the bottom wall of the mounting ring. The first motor is located on the outer wall of the recycling bin. The length direction of the output shaft of the first motor is perpendicular to the axial direction of the recycling bin. A gear is coaxially mounted on the output shaft of the first motor. The top end of the mounting ring is provided with a toothed groove that meshes with the gear.

[0010] Optionally, the scraper includes a first plate and a second plate. The first plate is fixedly disposed on the bottom wall of the mounting ring, and the surface of the first plate is horizontal. The second plate is fixedly disposed on the surface of the first plate facing the ground. A transfer space for transferring the mixture is formed between the first plate and the second plate. When the first plate drives the second plate to rotate, the second plate scrapes the mixture, and the mixture moves along the second plate and enters the recycling bin.

[0011] Optionally, both the first plate and the second plate are elongated strips, with the second plate inclined on the first plate, and the scraping surface of the second plate inclined toward the bottom surface of the first plate along the rotation direction of the first plate.

[0012] Optionally, the second plate has two mounting holes located on the scraping surface of the second plate and penetrating the second plate. A conveyor shaft is rotatably mounted on the second plate through the mounting holes. The length direction of the conveyor shaft is parallel to the width direction of the second plate. A conveyor belt is wound around the two conveyor shafts. The conveyor belt is in a closed state. A conveyor motor is provided on the second plate to drive the conveyor shafts to rotate and drive the conveyor belt to run.

[0013] Optionally, the recycling bin is provided with a partition that divides the recycling bin into a recycling chamber and a storage chamber. The recycling bin is connected to the feed inlet, and the partition is located above the feed inlet. The recycling bin is provided with a transfer component that is used to transfer the mixture in the recycling chamber to the storage chamber.

[0014] Optionally, the transfer component includes a conveying pipe coaxially disposed within the recycling bin, the bottom of which is supported by the bottom of the recycling bin. The side wall of the conveying pipe within the recycling chamber has a feed opening for the mixed material to enter. The top of the conveying pipe is separated from the top wall of the recycling bin. The top of the conveying pipe is located within the storage chamber and has a discharge port. The transfer component also includes a spiral conveying shaft rotatably disposed within the conveying pipe. The top of the spiral conveying shaft is rotatably disposed on the top wall of the recycling bin. A drive motor is disposed on the top wall of the recycling bin, and the spiral conveying shaft is coaxially disposed on the output shaft of the drive motor.

[0015] Optionally, the transfer component further includes a disc rotatably disposed on the bottom wall of the recycling bin, the rotation axis of the disc being coaxial with the recycling bin, and a transfer motor for driving the disc to rotate is provided on the bottom wall of the recycling bin; the transfer component further includes a feed plate disposed on the conveying pipe, the feed plate being inclined toward the direction of the feed notch, and a conveying space for the mixed material to enter the conveying pipe is formed between the feed plate and the conveying pipe.

[0016] Optionally, the partition is slidably disposed inside the recycling bin, the sliding direction of the partition is parallel to the axial direction of the recycling bin, and the recycling bin is provided with a second driving member for sliding the partition.

[0017] Secondly, this application provides a construction method for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces, employing the following technical solution:

[0018] Optionally, a construction method for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces, using a construction device for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces, further includes;

[0019] S1: Erect the mounting frame on the channel steel on both sides and move the mounting frame to the separation point of the mixture. Then slide the recycling box along the width of the road surface so that the recycling box is above the separation point of the mixture. Then move the recycling box towards the road surface so that the scraper enters the mixture.

[0020] S2: The first driving component drives the scraper to rotate, and the rotation of the scraper drives the mixture to enter the recycling box along the scraper. Then the transfer motor is started, and the transfer motor drives the disc to rotate. The rotation of the disc drives the mixture to rotate in the recycling box. The mixture rotates and passes through the feed plate. The feed plate guides the mixture into the conveying pipe.

[0021] S3: Start the drive motor, which drives the screw conveyor shaft to rotate. The rotation of the screw conveyor shaft lifts the mixture and moves it from the top of the conveying pipe into the storage chamber.

[0022] S4: As the material in the storage chamber increases, the second driving component drives the partition to move downward to expand the volume of the storage chamber, thereby facilitating the recovery of the separated mixture.

[0023] S5: After the segregated mixture has been removed, replace it with a graded mixture on the road surface.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. When removing the segregated layer of the mixture, first slide the mounting frame to the straight line where the segregated layer of the mixture is located, then slide the recycling box along the width of the road surface so that the recycling box is directly above the segregation point. Then slide the recycling box towards the road surface so that the scraper enters the mixture. Then, the first driving component drives the scraper to rotate. The rotation of the scraper drives the mixture along the scraper into the recycling box, thus completing the scraping of the mixture. The operation is simple and convenient, reducing the workload of the staff. Furthermore, after the mixture is recycled into the recycling box, it is easy to reuse the raw materials after recycling and processing, thereby reducing the waste of raw materials and achieving the purpose of energy conservation and environmental protection.

[0026] 2. When the paver is paving, the installation frame is attached to the paver and moves with the paver, making it easy for the construction workers to find areas of mixture segregation and replace them in time. Furthermore, the construction workers are located on the installation frame, which reduces the amount of walking required by the construction workers and thus reduces their workload.

[0027] 3. When replacing the segregation point of the mixture, the construction personnel walk from the installation frame to the segregation point and stand on the installation frame to perform the relevant operations, which reduces the damage to the already laid cement-stabilized crushed stone base course caused by the construction personnel standing and walking. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the construction device for facilitating the overlapping of cement-stabilized crushed stone base courses in an embodiment of this application;

[0029] Figure 2 This is a schematic diagram of the overall structure of a construction device for facilitating the overlapping of cement-stabilized crushed stone base courses in an embodiment of this application;

[0030] Figure 3 yes Figure 2 Side view;

[0031] Figure 4This is a cross-sectional view of a recycling bin in a construction device for facilitating the overlaying of cement-stabilized crushed stone base courses in an embodiment of this application;

[0032] Figure 5 This is a cross-sectional view of the conveying pipe in a construction device for facilitating the overlapping of cement-stabilized crushed stone base courses in an embodiment of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Channel steel; 2. Mounting bracket; 3. Recycling bin;

[0034] 4. Scraper; 41. First plate; 42. Second plate; 43. Transfer space;

[0035] 5. Feed inlet;

[0036] 6. First driving component; 61. Mounting ring; 62. First motor; 63. Gear; 64. Toothed groove;

[0037] 7. Mounting base; 8. Electric push rod; 9. Mounting port; 10. Conveyor belt; 11. Partition plate; 12. Recycling chamber; 13. Storage chamber;

[0038] 14. Transfer component; 141. Conveying pipe; 142. Feed notch; 143. Discharge port; 144. Screw conveyor shaft; 145. Drive motor; 146. Disc; 147. Feed plate;

[0039] 15. Winch; 16. Winch. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0041] This application discloses a construction device for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces. (Refer to...) Figure 1 The construction device for facilitating the overlapping of cement-stabilized crushed stone base courses on the road surface includes channel steel 1 located on both sides of the road surface to be paved. The bottoms of the channel steel 1 on both sides are directly opposite each other. The channel steel 1 is fixed to the ground by steel bars driven into the ground. The channel steel 1 is set along the length of the road surface. The mixture is spread between the two channel steel 1 layers. After the mixture is spread, the symmetrical channel steel 1 is subjected to a thrust away from the road surface. Under the action of the fixing steel bars, the channel steel 1 acts as a template to shape the mixture, so that the mixture is formed in the two channel steel 1.

[0042] Reference Figure 1 , Figure 2 and Figure 3In this embodiment, a mounting frame 2 is provided across the two side channel steels 1. The mounting frame 2 is a rectangular frame. After the mounting frame 2 is placed on the channel steel 1, a mounting groove is opened on the mounting frame 2 corresponding to the channel steel 1. The mounting frame 2 is snapped onto the channel steel 1 through the mounting groove. Furthermore, a roller is provided on the mounting frame 2 and located in the mounting groove. The roller is supported on the channel steel 1. The mounting frame 2 is slidably arranged on the channel steel 1 and slides along the length direction of the channel steel 1. A recycling box 3 is slidably arranged on the mounting frame 2. The recycling box 3 slides along the width direction of the road surface and along the direction perpendicular to the road surface. The recycling box 3 is cylindrical and hollow. A scraper 4 is rotatably arranged on the recycling box 3. The scraper 4 is located on the outer wall of the recycling box 3 and rotates along the outer wall of the recycling box 3. A feed inlet 5 is opened on the side wall of the recycling box 3 corresponding to the scraper 4. The scraper 4 rotates to scrape off the mixture on the road surface and enters the recycling box 3 through the feed inlet 5. A first driving member 6 is provided on the recycling box 3 to drive the scraper 4 to rotate.

[0043] When removing the segregated layer of the mixture, first slide the mounting bracket 2 to the straight line where the segregated layer of the mixture is located, then slide the recycling box 3 along the width of the road surface so that the recycling box 3 is directly above the segregation point. Then slide the recycling box 3 towards the road surface so that the scraper 4 enters the mixture. Then drive the scraper 4 to rotate through the first driving component 6. The rotation of the scraper 4 drives the mixture to enter the recycling box 3 along the scraper 4, thereby completing the scraping of the mixture. The operation is simple and convenient, reducing the workload of the staff.

[0044] Reference Figure 3 In this embodiment, the first driving component 6 includes a mounting ring 61 rotatably mounted on the recycling bin 3 and a first motor 62 mounted on the recycling bin 3. The mounting ring 61 is annular and sleeved on the recycling bin 3. The scraper 4 is fixedly mounted on the bottom wall of the mounting ring 61. The first motor 62 is located on the outer wall of the recycling bin 3. The length direction of the output shaft of the first motor 62 is perpendicular to the axial direction of the recycling bin 3. A gear 63 is coaxially mounted on the output shaft of the first motor 62. The top end of the mounting ring 61 has a toothed groove 64 that meshes with the gear 63. When the first motor 62 is started, the first motor 62 drives the gear 63 to rotate. The rotation of the gear 63 drives the toothed groove 64 to rotate, which in turn drives the mounting ring 61 to rotate. The rotation of the mounting ring 61 drives the scraper 4 to rotate. The rotation of the scraper 4 scrapes the mixture into the recycling bin 3. The operation is simple and convenient.

[0045] Reference Figure 1In this embodiment, a mounting base 7 is fitted onto the recycling bin 3. The mounting base 7 is slidably mounted on the mounting frame 2 and slides in a direction perpendicular to the road surface. Furthermore, an electric push rod 8 is provided on the mounting base 7. The length direction of the output shaft of the electric push rod 8 is perpendicular to the road surface, and the output shaft of the electric push rod 8 is fixedly mounted on the recycling bin 3. As the scraper 4 recovers the mixture into the recycling bin 3, the surface of the mixture at the segregation point descends. At this time, the electric push rod 8 is activated, and the electric push rod 8 pulls the recycling bin 3 toward the road surface. The recycling bin 3 drives the scraper 4 to move toward the road surface, so that the scraper 4 acts on the surface of the mixture. At the same time, under the gravity of the recycling bin 3 and the mixture entering the recycling bin 3, the possibility of the recycling bin 3 rising relative to the ground when the electric push rod 8 pulls down the recycling bin 3 is reduced, thereby facilitating the movement of the scraper 4 toward the mixture.

[0046] Reference Figure 1 Furthermore, the mounting base 7 is equipped with rollers, which are supported on the mounting frame 2.

[0047] Reference Figure 2 To facilitate the scraper 4 in scraping the mixture and guiding it into the recycling bin 3, the scraper 4 includes a first plate 41 and a second plate 42. The first plate 41 is fixedly mounted on the bottom wall of the mounting ring 61, and its surface is horizontal. The second plate 42 is fixedly mounted on the surface of the first plate 41 facing the ground. The first plate 41 and the second plate 42 are folded together, forming a transfer space 43 between them for transferring the mixture. The first plate 41 drives the second plate 42... When the first plate 42 rotates, the second plate 42 scrapes the mixture, and the mixture moves along the second plate 42 and enters the recycling box 3. When the mounting ring 61 drives the first plate 41 to rotate, the first plate 41 drives the second plate 42 to rotate. Because the second plate 42 is in an inclined state, when the second plate 42 scrapes the mixture, the mixture enters the transfer space 43. Under the squeezing action of the mixture that subsequently enters the transfer space 43, the mixture that previously entered the transfer space 43 is driven along the scraper 4 into the recycling box 3.

[0048] Reference Figure 2 Furthermore, both the first plate 41 and the second plate 42 are elongated strips. The second plate 42 is inclined on the first plate 41, and the scraping surface of the second plate 42 is inclined towards the bottom surface of the first plate 41 along the rotation direction of the first plate 41. The angle between the first plate 41 and the second plate 42 is less than 90°. The angle between the first plate 41 and the second plate 42 is less than 90°, which facilitates the scraping of the mixture by the second plate 42.

[0049] Reference Figure 2 and Figure 3To facilitate the entry of the mixture accumulated in the transfer space 43 into the recycling bin 3, two mounting ports 9 are provided on the second plate 42. The axis of the mounting ports 9 is parallel to the width direction of the second plate 42. The mounting ports 9 are located on the scraping surface of the second plate 42 and penetrate the second plate 42. A conveyor shaft is rotatably mounted on the second plate 42 through the mounting ports 9. The length direction and rotation axis of the conveyor shaft are parallel to the width direction of the second plate 42. A conveyor belt 10 is wound around the two conveyor shafts. The conveyor belt 10 is in a closed state. A conveyor motor is provided on the second plate 42 to drive the conveyor shaft to rotate and drive the conveyor belt 10 to run. When the first plate 41 and the second plate 42 scrape the mixture, the conveyor motor is started. The conveyor motor drives the conveyor shaft to rotate. The rotation of the conveyor shaft drives the conveyor belt 10 to run. Since the mixture accumulates at the conveyor belt 10, when the conveyor belt 10 runs, the conveyor belt 10 drives the mixture to move in the transfer space 43, thereby driving the mixture to enter the recycling bin 3 through the feed port 5.

[0050] To reduce the possibility of relative sliding between the conveyor shaft and the conveyor belt 10, toothed sections are provided on the peripheral wall of the conveyor shaft, and toothed sections that mesh with the toothed sections are provided on the back of the conveyor belt 10. Under the action of the meshing toothed sections on the conveyor shaft and the conveyor belt 10, the possibility of relative rotation between the conveyor belt 10 and the conveyor shaft is reduced. This facilitates the conveying of the mixture.

[0051] Reference Figure 4 and Figure 5 To reduce the possibility of the mixed material entering the recycling bin 3 accumulating at the inlet 5, in this embodiment of the application, a partition 11 is provided inside the recycling bin 3. The partition 11 is disc-shaped 146, and the diameter of the partition 11 is equal to the inner diameter of the recycling bin 3. The partition 11 divides the recycling bin 3 into a recycling chamber 12 and a storage chamber 13. The storage chamber 13 is located above the partition 11, and the recycling bin 3 is located below the partition 11. The recycling bin 3 is connected to the inlet 5. The partition 11 is located above the inlet 5. A transfer member 14 is provided inside the recycling bin 3. The transfer member 14 is used to transfer the mixed material in the recycling chamber 12 to the storage chamber 13. After the mixed material enters the recycling bin 3 through the inlet 5, the transfer member 14 transfers the mixed material in the recycling chamber 12 to the storage chamber 13, thereby reducing the possibility of the mixed material clogging the inlet 5.

[0052] Reference Figure 4 and Figure 5The transfer component 14 includes a conveying pipe 141 coaxially disposed within the recycling bin 3. The length direction of the conveying pipe 141 is parallel to the axial direction of the recycling bin 3. The bottom of the conveying pipe 141 is supported by the bottom of the recycling bin 3. The side wall of the conveying pipe 141 located within the recycling chamber 12 has a feeding notch 142 for the mixed material to enter. The top of the conveying pipe 141 is separated from the top wall of the recycling bin 3. The top of the conveying pipe 141 is located within the storage chamber 13 and has a discharge port 143. The transfer component 14 also includes a spiral conveying shaft 144 rotatably disposed within the conveying pipe 141. The top of the spiral conveying shaft 144 is rotatably disposed on the top wall of the recycling bin 3. A drive motor 145 is disposed on the top wall of the recycling bin 3. The output shaft of the drive motor 145 faces the inside of the recycling bin 3. The spiral conveying shaft 144 is coaxially disposed on the output shaft of the drive motor 145.

[0053] The mixture entering the recycling bin 3 enters the recycling chamber 12. Under the pushing action of the subsequent mixture, the mixture is pushed through the feed notch 142 into the conveying pipe 141. Then, the drive motor 145 is started, and the drive motor 145 drives the screw conveyor shaft 144 to rotate. The rotation of the screw conveyor shaft 144 drives the mixture to rise and move out through the end of the conveying pipe 141, thereby completing the transfer of the mixture. The operation is simple and convenient.

[0054] Reference Figure 4 and Figure 5 To facilitate the entry of the mixture in the recovery chamber 12 into the conveying pipe 141 through the feed notch 142, the transfer component 14 also includes a disc 146 rotatably mounted on the bottom wall of the recovery box 3. The diameter of the disc 146 is equal to the inner diameter of the recovery box 3. The bottom of the conveying pipe 141 rests on the disc 146, and the rotation axis of the disc 146 is coaxial with that of the recovery box 3. A transfer motor for driving the disc 146 to rotate is provided on the bottom wall of the recovery box 3. The transfer component 14 also includes a feed plate 147 mounted on the conveying pipe 141. The feed plate 147 is inclined toward the feed notch 142, and a conveying space is formed between the feed plate 147 and the conveying pipe 141 for the mixture to enter the conveying pipe 141. After the mixture enters the recovery chamber 12, the transfer motor is started, and the transfer motor drives the disc 146 to rotate. The rotation of the disc 146 causes the mixture to rotate within the recovery chamber 12. Under the action of the feed plate 147, the rotating mixture is guided into the conveying pipe 141, thereby facilitating the transfer of the mixture.

[0055] Reference Figure 4 and Figure 5In this embodiment, the partition 11 is slidably disposed within the recycling bin 3, and the sliding direction of the partition 11 is parallel to the axial direction of the recycling bin 3. The recycling bin 3 is provided with a second driving component for sliding the partition 11. The second driving component includes multiple winches 15 disposed at the top of the recycling bin 3. The wire rope 16 on the winch 15 enters the storage cavity 13 and is fixedly connected to the partition 11. As the amount of mixed material entering the storage cavity 13 increases, the winch 15 is activated, and the winch 15 lowers the partition 11. The descent of the partition 11 increases the volume of the storage cavity 13, thereby facilitating the recycling of the mixed material. At the same time, by adjusting the height of the partition 11 within the recycling bin 3, it is convenient to adjust the distance between the surface of the mixed material and the outlet 143 of the conveying pipe 141, reducing the speed at which the mixed material falls onto the partition 11, reducing the possibility of damage to the partition 11, and reducing the noise generated during the recycling of the mixed material.

[0056] The implementation principle of the construction device for facilitating the overlapping of cement-stabilized crushed stone base courses in this application embodiment is as follows:

[0057] When removing the segregated layer of the mixture, firstly, slide the mounting bracket 2 to the straight line where the segregated layer of the mixture is located, then slide the recycling box 3 along the width of the road surface so that the recycling box 3 is directly above the segregation point. Then, slide the recycling box 3 towards the road surface so that the scraper 4 enters the mixture. Then, the first motor 62 drives the scraper 4 to rotate. The rotation of the scraper 4 drives the mixture along the scraper 4 into the recycling box 3, thereby completing the scraping of the mixture. The operation is simple and convenient, reducing the workload of the staff. Furthermore, after the mixture is recycled into the recycling box 3, it is easy to reuse the raw materials after recycling and processing, thereby reducing the waste of raw materials and achieving the purpose of energy conservation and environmental protection.

[0058] This application discloses a construction method for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces, a construction device for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces, and further includes;

[0059] S1: Erect the mounting frame 2 on the channel steel 1 on both sides, and move the mounting frame 2 to the separation point of the mixture. Then slide the recycling box 3 along the width of the road surface so that the recycling box 3 is above the separation point of the mixture. Then move the recycling box 3 towards the road surface so that the scraper 4 enters the mixture.

[0060] S2: The first driving component 6 drives the scraper 4 to rotate. The rotation of the scraper 4 drives the mixture to enter the recycling box 3 along the scraper 4. Then the transfer motor is started. The transfer motor drives the disc 146 to rotate. The rotation of the disc 146 drives the mixture to rotate in the recycling box 3. The mixture rotates and passes through the feed plate 147. The feed plate 147 guides the mixture into the conveying pipe 141.

[0061] S3: Start the drive motor 145, drive the screw conveyor shaft 144 to rotate, the screw conveyor shaft 144 rotates to lift the mixture and move it out from the top of the conveying pipe 141 into the storage chamber 13.

[0062] S4: As the material in the storage chamber 13 increases, the second driving member drives the partition 11 to move downward to expand the volume of the storage chamber 13, thereby facilitating the recovery of the separated mixture.

[0063] S5: After the segregated mixture has been removed, replace it with a graded mixture on the road surface.

[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A construction device for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces, characterized in that: The system includes channel steel (1) located on both sides of the road surface to be paved. The channel steel (1) is set along the length of the road surface. The mixture is spread between the two channel steel (1) layers. An installation frame (2) is set across the two channel steel (1). The installation frame (2) is slidably set on the channel steel (1) and slides along the length of the channel steel (1). A recycling box (3) is slidably set on the installation frame (2). The recycling box (3) slides along the width of the road surface and along the direction perpendicular to the road surface. The recycling box (3) is cylindrical. A scraper (4) is rotatably set on the recycling box (3). A feed inlet (5) is opened on the side wall of the recycling box (3) corresponding to the scraper (4). The scraper (4) rotates to scrape the mixture on the road surface and enters the recycling box (3) through the feed inlet (5) along the scraper (4). A first driving member (6) for driving the scraper (4) to rotate is set on the recycling box (3). The first driving component (6) includes a mounting ring (61) rotatably mounted on the recycling bin (3) and a first motor (62) mounted on the recycling bin (3). The scraper (4) is fixedly mounted on the bottom wall of the mounting ring (61). The first motor (62) is located on the outer wall of the recycling bin (3). The length direction of the output shaft of the first motor (62) is perpendicular to the axial direction of the recycling bin (3). A gear (63) is coaxially mounted on the output shaft of the first motor (62). A toothed groove (64) that meshes with the gear (63) is opened at the top of the mounting ring (61). The scraper (4) includes a first plate (41) and a second plate (42). The first plate (41) is fixedly mounted on the bottom wall of the mounting ring (61). The plate surface of the first plate (41) is horizontal. The second plate (42) is fixedly mounted on the surface of the first plate (41) facing the ground. A transfer space (43) for transferring the mixture is formed between the first plate (41) and the second plate (42). When the first plate (41) drives the second plate (42) to rotate, the second plate (42) scrapes the mixture, and the mixture moves along the second plate (42) and enters the recycling bin (3). The recycling bin (3) is provided with a partition (11), which divides the recycling bin (3) into a recycling chamber (12) and a storage chamber (13). The recycling bin (3) is connected to the feed inlet (5). The partition (11) is located above the feed inlet (5). The recycling bin (3) is provided with a transfer component (14), which is used to transfer the mixture in the recycling chamber (12) to the storage chamber (13). The transfer component (14) includes a conveying pipe (141) coaxially disposed in the recycling box (3). The bottom of the conveying pipe (141) is supported by the bottom of the recycling box (3). The side wall of the conveying pipe (141) located in the recycling chamber (12) has a feeding notch (142) for the mixed material to enter. The top of the conveying pipe (141) is separated from the top wall of the recycling box (3). The top of the conveying pipe (141) is located in the storage chamber (13) and has a discharge port (143). The transfer component (14) also includes a spiral conveying shaft (144) rotatably disposed in the conveying pipe (141). The top of the spiral conveying shaft (144) is rotatably disposed on the top wall of the recycling box (3). A drive motor (145) is disposed on the top wall of the recycling box (3). The spiral conveying shaft (144) is coaxially disposed on the output shaft of the drive motor (145). The transfer component (14) further includes a disc (146) rotatably disposed on the bottom wall of the recycling bin (3), the rotation axis of the disc (146) being coaxial with the recycling bin (3), and a transfer motor for driving the disc (146) to rotate is provided on the bottom wall of the recycling bin (3); the transfer component (14) further includes a feed plate (147) disposed on the conveying pipe (141), the feed plate (147) being inclined toward the feed notch (142), and a conveying space for the mixture to enter the conveying pipe (141) is formed between the feed plate (147) and the conveying pipe (141).

2. The construction device for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces according to claim 1, characterized in that: The first plate (41) and the second plate (42) are both elongated. The second plate (42) is inclined on the first plate (41) and the scraping surface of the second plate (42) is inclined towards the bottom surface of the first plate (41) along the rotation direction of the first plate (41).

3. The construction device for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces according to claim 1, characterized in that: The second plate (42) has two mounting ports (9). The mounting ports (9) are located on the scraping surface of the second plate (42) and penetrate the second plate (42). A conveyor shaft is rotatably mounted on the second plate (42) through the mounting ports (9). The length direction of the conveyor shaft is parallel to the width direction of the second plate (42). A conveyor belt (10) is wound around the two conveyor shafts. The conveyor belt (10) is in a closed state. A conveyor motor is provided on the second plate (42) for driving the conveyor shaft to rotate and driving the conveyor belt (10) to run.

4. The construction device for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces according to claim 1, characterized in that: The partition (11) is slidably disposed inside the recycling bin (3), and the sliding direction of the partition (11) is parallel to the axial direction of the recycling bin (3). The recycling bin (3) is provided with a second driving member for sliding the partition (11).

5. A construction method for facilitating the overlapping of cement-stabilized crushed stone base courses on road surfaces, using the construction device for facilitating the overlapping of cement-stabilized crushed stone base courses as described in any one of claims 1-4, characterized in that: Also includes; S1: Erect the mounting frame (2) on the channel steel (1) on both sides, and move the mounting frame (2) to the separation point of the mixture. Then slide the recycling box (3) along the width of the road surface so that the recycling box (3) is above the separation point of the mixture. Then move the recycling box (3) towards the road surface so that the scraper (4) enters the mixture. S2: The scraper (4) is driven to rotate by the first driving component (6). The rotation of the scraper (4) drives the mixture to enter the recycling box (3) along the scraper (4). Then the transfer motor is started. The transfer motor drives the disc (146) to rotate. The rotation of the disc (146) drives the mixture to rotate in the recycling box (3). The mixture rotates and passes through the feed plate (147). The feed plate (147) guides the mixture into the conveying pipe (141). S3: Start the drive motor (145), the drive motor (145) drives the screw conveyor shaft (144) to rotate, the screw conveyor shaft (144) rotates to lift the mixture and move it out from the top of the conveying pipe (141) into the storage chamber (13); S4: As the material in the storage chamber (13) increases, the second driving member drives the partition (11) to move downward to expand the volume of the storage chamber (13), thereby facilitating the recovery of the separated mixture; S5: After the segregated mixture has been removed, replace it with a graded mixture on the road surface.

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