Asphalt milling material crushing and screening regeneration equipment and regeneration method thereof

Abstract

The invention relates to asphalt milling material crushing and screening regeneration equipment and a regeneration method thereof. Comprising a carrier loader, a transmission assembly and a milling assembly, and the transmission assembly comprises a supporting seat, a supporting plate and a first air cylinder; the milling assembly comprises a stabilizing seat which is rotatably connected to the tail end of a supporting plate, the left end and the right end of the stabilizing seat are connected with side plates correspondingly, a milling roller is rotatably connected to the two sets of side plates, a motor is arranged on the stabilizing seat and drives the milling roller, stabilizing holes are formed in the side plates, and the side plates and a lifting plate are formed in the mode that studs penetrate into the stabilizing holes and long holes to be connected. The lifting plate moves up and down relative to the side plate in the process of abutting against the ground, and a vertical chain is arranged at the rear end of the stabilizing seat. According to the method, on the pavement needing to be overhauled, the stabilizing seat abuts against the asphalt pavement through the carrier loader, in-situ milling, digging and crushing are carried out in the process of starting the milling roller, powder is screened through ventilation, then auxiliary materials are added for in-situ regeneration, construction is convenient, a large number of old materials do not need to be transported, energy and materials are saved, and cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of asphalt pavement renovation, and in particular relates to an asphalt milling material crushing, screening and regeneration device and a regeneration method thereof. Background Art

[0002] At present, asphalt pavement is widely used in highway paving. Asphalt pavement has high stability and can resist damage to the road surface caused by driving and natural factors. It also has good crack resistance and can maintain the integrity of the road surface under different temperature conditions. It can resist water erosion and prevent the occurrence of asphalt film peeling, particle loss, loosening, potholes and other destructive phenomena. It has the ability to resist damage under repeated loads and can extend the service life of the road surface. Asphalt pavement is flat and not prone to dust, which improves driving comfort and safety. Moreover, its construction steps are relatively simple and there are few restrictions on construction conditions, which can shorten construction time and improve construction efficiency.

[0003] However, at present, in the process of asphalt pavement renovation, many of them are softened by heating the road surface, shoveling up road waste, and transporting the recycled asphalt milling materials to the asphalt mixing plant. After crushing and screening, they are mixed with new aggregates, new asphalt, regeneration agents, etc. in a certain proportion to make hot-mix recycled mixture, and then the road surface is paved. However, this form of renovation requires the transportation of waste materials and the regenerated new materials to the road surface that needs to be paved. The freight generated by the intermediate transportation is a heavy burden. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an asphalt milling material crushing, screening and regeneration equipment and a regeneration method thereof. On the road surface that needs to be renovated, a stable seat is directly abutted against the asphalt road surface by a carrier vehicle. During the process of starting the milling roller, the milling, excavation and crushing are carried out on-site, and the powder is screened through ventilation, and then auxiliary materials are added for on-site regeneration. The construction is convenient, there is no need to transport a large amount of old materials, energy and materials are saved, and costs are reduced.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A crushing, screening and regeneration equipment for asphalt milling material, comprises a carrier vehicle, a transmission assembly and a milling assembly, the transmission assembly comprises a support seat, a support plate and a first cylinder, the support plate is rotatably connected to the top end of the support seat, the first cylinder is arranged in the middle of the support seat, and the output end of the first cylinder is connected to the middle of the support plate; the milling assembly comprises a stabilizing seat, a motor, a milling roller and a lifting plate, the stabilizing seat is rotatably connected to the end of the support plate, the left and right ends of the stabilizing seat are respectively connected to side plates, the milling roller is rotatably connected to two groups of side plates, the motor is arranged on the stabilizing seat, and the output end of the motor drives the milling roller through a belt, the side plate is provided with a stabilizing hole, the lifting plate is provided with a long hole, the side plate and the lifting plate are connected by studs passing through the stabilizing hole and the long hole, the lifting plate moves up and down relative to the side plate in the process of abutting the ground, and the rear end of the stabilizing seat is provided with a plurality of densely distributed vertical chains.

[0007] Furthermore, an abutment plate is provided at the bottom of the lifting plate, and the abutment plate is in an arc-shaped structure with the axis of the milling roller as the rotation center, and the extension direction of the long hole is consistent with the radial direction of the arc-shaped structure of the abutment plate.

[0008] Furthermore, the stabilizing holes and long holes include several groups, several groups of the long holes are distributed in an array on the lifting plate, the axes between the several groups of the long holes are parallel to each other, several groups of the stabilizing holes are distributed in an array on the side plate, and several groups of the long holes correspond one by one to several groups of the stabilizing holes.

[0009] Furthermore, the transmission assembly also includes a center seat, a second cylinder, a crank plate, a pulling rod and a fixed rod, the center seat is arranged in the middle part of the support plate, the middle part of the crank plate is rotatably connected to the center seat, the second cylinder is arranged on the support seat, the output end of the second cylinder is rotatably connected to the upper end of the crank plate, the lower end of the crank plate is rotatably connected to the pulling rod, the end of the pulling rod is sleeved on the fixed rod, and the two ends of the fixed rod are respectively connected to the two groups of side plates.

[0010] Furthermore, the milling assembly also includes an air screen plate and a third cylinder. The left and right ends of the air screen plate are rotatably connected to the two groups of side plates respectively. The third cylinder is arranged on a stable seat. The output end of the third cylinder is connected to the air screen plate. The air screen plate is covered on the front end surface of the stable seat under the drive of the third cylinder, and the air outlet on the air screen plate faces the lower end of the milling roller.

[0011] Furthermore, a feed hole penetrating through and facing the milling roller is provided on the stabilizing seat, and the milling assembly further comprises a feed box, which covers the feed hole and is in communication with the feed hole.

[0012] Furthermore, a plurality of groups of blocking columns are arranged in the stabilizing seat, and the blocking columns are distributed in an array in the stabilizing seat and face the milling roller.

[0013] The present invention also provides a method for regenerating asphalt milling material, comprising the following steps:

[0014] S1: Start the carrier vehicle and drive it to the asphalt road surface that needs to be excavated. During this process, the support plate is pushed forward by the first cylinder of the transmission assembly, so that the support plate is lifted upward with the support seat as the rotation center, and the milling assembly is kept away from the asphalt road surface that does not need to be excavated, ensuring that the milling roller remains suspended during the non-operation process;

[0015] S2: After the carrier vehicle drives onto the asphalt pavement to be excavated, the first cylinder is activated to retract, so that the support plate gradually descends during the rotation process until the abutment plate at the bottom of the lifting plate on the side plate abuts against the asphalt pavement, and the downward movement of the stable seat is continuously maintained until the lifting plate is lifted up along the direction of the long hole;

[0016] S3: Adjust the milling angle and drive the second cylinder to push. During the pushing process, the upper end of the crank plate moves toward the stable seat, and the lower end of the crank plate shrinks away from the stable seat. The lower end of the crank plate pulls the pulling rod, thereby driving the fixed rod to move backward, and finally the vertical chain abuts against the asphalt road surface, driving the third cylinder to push the air screen plate until the air screen plate covers the front of the stable seat, so that a relatively closed space is formed in the stable seat;

[0017] S4: Start the motor to drive the milling roller to rotate. The milling roller contacts the asphalt pavement to perform on-site milling, digging and crushing. After the asphalt pavement is crushed, the crushed material will be kept under the stable seat due to the blocking of the vertical chain behind the stable seat. In the process of the crushed material jumping upward under the inertia of the milling roller, it is blocked by the blocking column to prevent the crushed material from splashing upward and flying out of the feed hole. At the same time, the air screen plate is started to blow the lower end of the milling roller through the air flow, so that the generated powder dust is blown out from the gap of the vertical chain, reducing the powder material after crushing.

[0018] S5: After the asphalt crushing and air screening at this position are completed, the first cylinder is driven to slightly lift the stabilizing seat. During the lifting process of the stabilizing seat, the lifting plate falls down under the action of gravity and remains in contact with the road surface. At this time, the stabilizer, cement, water (or emulsified asphalt) and aggregate and other recycled materials in the feed box are fed into the position of the milling roller, and are driven to the crushed materials below for mixing as the milling roller rotates;

[0019] S6: After the mixing is completed, the crushed materials are kept in place, and the second cylinder is driven to pull back, so that the vertical chain is away from the asphalt road surface, and the carrier is started to move forward until it leaves the asphalt road surface that has been milled, and then stops on the next section of the asphalt road surface that needs to be milled. The second cylinder is driven again to push out, and the milling is repeated after the vertical chain abuts against the asphalt road surface until the milling and crushed material mixing are completed on the asphalt road surface that needs to be repaired. Subsequently, the road mixer is used to mix and roll the new road surface on the spot.

[0020] Compared with the prior art, the advantages of the present invention are: on the road surface that needs to be renovated, the stabilizing seat is directly abutted against the asphalt road surface by a carrier vehicle, and in the process of starting the milling roller, the asphalt road surface is milled, dug, and crushed on the spot, and the powder is sieved by ventilation, and then auxiliary materials are added for on-site regeneration. After completing the milling of the asphalt road surface of this section, the carrier vehicle is started and driven forward, and then stops and repeats the construction on the next section of the road surface that needs to be milled, until the milling and crushing are completed on the asphalt road surface that needs to be repaired, and several groups of crushed material piles are left, and subsequently a road mixer is used to mix and roll on-site to form a new road surface. The equipment and method are easy to construct, do not need to transport a large amount of old materials, save energy and materials, reduce costs, reduce environmental pollution, and are in line with the concept of green construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A perspective view of the present invention;

[0023] Figure 2 For the present invention Figure 1 A local enlarged view of point A;

[0024] Figure 3 For the present invention Figure 1 A partial enlarged view of point B;

[0025] Figure 4 A top perspective view of the milling assembly of the present invention;

[0026] Figure 5 A bottom perspective view of the milling assembly of the present invention

[0027] Figure 6 A bottom view of the milling assembly of the present invention;

[0028] Figure 7 For the present invention Figure 6 A partial enlarged view of point C;

[0029] Figure 8 It is a left side view of the milling assembly of the present invention;

[0030] Fig. 9 For the present invention Figure 8 A partial enlarged view of point D.

[0031] Among them: 1. Carrier; 2. Transmission assembly; 21. Support seat; 22. Support plate; 23. First cylinder; 24. Center seat; 25. Second cylinder; 26. Crank plate; 27. Pull rod; 28. Fixed rod; 3. Milling assembly; 31. Stable seat; 311. Side plate; 312. Stable hole; 313. Vertical chain; 314. Feed hole; 315. Blocking column; 32. Motor; 33. Milling roller; 34. Lifting plate; 341. Long hole; 342. Abutment plate; 35. Air screen plate; 351. Air outlet; 36. Third cylinder; 37. Feed box. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0033] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings:

[0034] like Figure 1-9 As shown, an asphalt milling material crushing, screening and regeneration equipment includes a carrier 1, a transmission assembly 2 and a milling assembly 3, the transmission assembly 2 includes a support seat 21, a support plate 22 and a first cylinder 23, the support plate 22 is rotatably connected to the top of the support seat 21, the first cylinder 23 is arranged in the middle of the support seat 21, and the output end of the first cylinder 23 is connected to the middle of the support plate 22; the milling assembly 3 includes a stabilizing seat 31, a motor 32, a milling roller 33 and a lifting plate 34, the stabilizing seat 31 is rotatably connected to the end of the support plate 22, and the left and right ends of the stabilizing seat 31 are connected to the lifting plate 34. The ends are respectively connected to side plates 311, the milling roller 33 is rotatably connected to the two groups of side plates 311, the motor 32 is arranged on the stabilizing seat 31, the output end of the motor 32 drives the milling roller 33 through a belt, the side plate 311 is provided with a stabilizing hole 312, the lifting plate 34 is provided with a long hole 341, the side plate 311 and the lifting plate 34 are connected by studs passing through the stabilizing hole 312 and the long hole 341, the lifting plate 34 moves up and down relative to the side plate 311 in the process of abutting the ground, and the rear end of the stabilizing seat 31 is provided with a plurality of densely distributed vertical chains 313.

[0035] Furthermore, a contact plate 342 is provided at the bottom of the lifting plate 34 . The contact plate 342 is in an arc-shaped structure with the axis of the milling roller 33 as the rotation center. The extending direction of the long hole 341 is consistent with the radial direction of the arc-shaped structure of the contact plate 342 .

[0036] Furthermore, the stabilizing holes 312 and the long holes 341 include several groups, several groups of the long holes 341 are distributed in an array on the lifting plate 34, the axes between the several groups of the long holes 341 are parallel to each other, several groups of the stabilizing holes 312 are distributed in an array on the side plate 311, and several groups of the long holes 341 correspond to several groups of the stabilizing holes 312 one by one.

[0037] Furthermore, the transmission assembly 2 also includes a center seat 24, a second cylinder 25, a crank plate 26, a pulling rod 27 and a fixed rod 28. The center seat 24 is arranged in the middle part of the support plate 22, and the middle part of the crank plate 26 is rotatably connected to the center seat 24. The second cylinder 25 is arranged on the support seat 21, and the output end of the second cylinder 25 is rotatably connected to the upper end of the crank plate 26. The lower end of the crank plate 26 is rotatably connected to the pulling rod 27, and the end of the pulling rod 27 is sleeved on the fixed rod 28. The two ends of the fixed rod 28 are respectively connected to the two groups of side plates 311.

[0038] Furthermore, the milling assembly 3 also includes an air screen plate 35 and a third cylinder 36. The left and right ends of the air screen plate 35 are rotatably connected to the two groups of side plates 311 respectively. The third cylinder 36 is arranged on the stable seat 31. The output end of the third cylinder 36 is connected to the air screen plate 35. The air screen plate 35 is covered on the front end surface of the stable seat 31 under the drive of the third cylinder 36, and the air outlet 351 on the air screen plate 35 faces the lower end of the milling roller 33.

[0039] Furthermore, a feed hole 314 penetrating through and facing the milling roller 33 is provided on the stabilizing seat 31 , and the milling assembly 3 further includes a feed box 37 , which covers the feed hole 314 and is in communication with the feed hole 314 .

[0040] Furthermore, a plurality of groups of blocking columns 315 are disposed in the stabilizing seat 31 , and the blocking columns 315 are distributed in an array in the stabilizing seat 31 and face the milling roller 33 .

[0041] The present invention uses the asphalt milling material crushing screening regeneration equipment regeneration method and steps:

[0042] S1: Start the carrier 1 and drive it to the asphalt road surface that needs to be excavated. During this process, the first cylinder 23 of the transmission assembly 2 pushes the support plate 22 forward, so that the support plate 22 is lifted upward with the support seat 21 as the rotation center, and the milling assembly 3 is kept away from the asphalt road surface that does not need to be excavated, ensuring that the milling roller 33 remains suspended during the non-operation process;

[0043] S2: After the carrier 1 travels to the asphalt road surface to be excavated, the first cylinder 23 is activated to retract, so that the support plate 22 gradually descends during the rotation process until the abutment plate 342 at the bottom of the lifting plate 34 on the side plate 311 abuts against the asphalt road surface, and the downward movement of the stabilizing seat 31 is continuously maintained until the lifting plate 34 is lifted upward along the direction of the long hole 341;

[0044] S3: Adjust the milling angle and drive the second cylinder 25 to push. During the pushing process, the upper end of the crank plate 26 moves toward the stable seat 31, and the lower end of the crank plate 26 shrinks away from the stable seat 31. The lower end of the crank plate 26 pulls the pulling rod 27, thereby driving the fixing rod 28 to move backward, and finally the vertical chain 313 abuts against the asphalt road surface, and drives the third cylinder 36 to push the air screen plate 35 until the air screen plate 35 covers the front of the stable seat 31, so that a relatively closed space is formed in the stable seat 31.

[0045] S4: Start the motor 32 to drive the milling roller 33 to rotate. The milling roller 33 abuts against the asphalt road surface to mill, dig and crush the asphalt road surface on the spot. After the asphalt road surface is crushed, the crushed material will be kept under the stable seat 31 due to the obstruction of the vertical chain 313 behind the stable seat 31. In the process of the crushed material jumping upward under the inertia of the milling roller 33, it is blocked by the blocking column 315, which can prevent the crushed material from splashing upward and flying out of the feed hole 314. At the same time, the air screen plate 35 is started to blow the lower end of the milling roller 33 through the air flow, so that the generated powder dust is blown out from the gap of the vertical chain 313, thereby reducing the powder material after the crushing.

[0046] S5: After the asphalt crushing and air screening at this position are completed, the first cylinder 23 is driven to slightly lift the stabilizing seat 31. During the lifting process of the stabilizing seat 31, the lifting plate 34 falls down under the action of gravity and remains in contact with the road surface. At this time, the stabilizer, cement, water (or emulsified asphalt) and aggregate and other recycled materials in the feed box 37 are fed into the position of the milling roller 33, and are driven to the crushed materials below for mixing as the milling roller 33 rotates;

[0047] S6: After the mixing is completed, the crushed materials are kept in place, and the second cylinder 25 is driven to pull back so that the vertical chain 313 is away from the asphalt road surface. The carrier 1 is started to move forward until it leaves the asphalt road surface after milling, and stops on the next section of the asphalt road surface that needs to be milled. The second cylinder 25 is driven again to push out, and the milling is repeated after the vertical chain 313 abuts on the asphalt road surface until the milling and crushed material mixing are completed on the asphalt road surface that needs to be repaired, and then the road mixer is used to mix and roll the new road surface on the spot.

[0048] The beneficial effects of the present invention are as follows: on the road surface that needs to be renovated, the stabilizing seat 31 is directly abutted against the asphalt road surface by the carrier 1, and the milling roller 33 is started to perform on-site milling, excavation, and crushing, and the powder is sieved through ventilation, and then auxiliary materials are added for on-site regeneration. After completing the milling of the asphalt road surface of this section, the carrier 1 is started to move forward and stays on the next section of the road surface that needs to be milled and the construction is repeated until the milling and crushing are completed on the asphalt road surface that needs to be repaired, and several groups of crushed material piles are left, and then a road mixer is used to mix and roll on-site to form a new road surface. The equipment and method are easy to construct, do not need to transport a large amount of old materials, save energy and materials, reduce costs, reduce environmental pollution, and comply with the concept of green construction.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An asphalt milling material crushing, screening and regeneration equipment, characterized by: It includes a carrier vehicle, a transmission assembly and a milling assembly, the transmission assembly includes a support seat, a support plate and a first cylinder, the support plate is rotatably connected to the top of the support seat, the first cylinder is arranged in the middle of the support seat, and the output end of the first cylinder is connected to the middle of the support plate; the milling assembly includes a stabilizing seat, a motor, a milling roller and a lifting plate, the stabilizing seat is rotatably connected to the end of the support plate, the left and right ends of the stabilizing seat are respectively connected to side plates, the milling roller is rotatably connected to two groups of side plates, the motor is arranged on the stabilizing seat, and the output end of the motor drives the milling roller through a belt, the side plate is provided with a stabilizing hole, the lifting plate is provided with a long hole, the side plate and the lifting plate are connected by studs passing through the stabilizing hole and the long hole, the lifting plate moves up and down relative to the side plate in the process of abutting the ground, and the rear end of the stabilizing seat is provided with a number of densely distributed vertical chains.

2. The asphalt milling material crushing, screening and regeneration equipment according to claim 1 is characterized by: An abutment plate is provided at the bottom of the lifting plate. The abutment plate is in an arc-shaped structure with the axis of the milling roller as the rotation center. The extending direction of the long hole is consistent with the radial direction of the arc-shaped structure of the abutment plate.

3. The asphalt milling material crushing, screening and regeneration equipment according to claim 2 is characterized in that: The stabilizing holes and long holes include several groups, several groups of the long holes are distributed in an array on the lifting plate, the axes between the several groups of the long holes are parallel to each other, several groups of the stabilizing holes are distributed in an array on the side plates, and several groups of the long holes correspond to several groups of the stabilizing holes one by one.

4. The asphalt milling material crushing, screening and regeneration equipment according to claim 3 is characterized by: The transmission assembly also includes a center seat, a second cylinder, a crank plate, a pulling rod and a fixed rod. The center seat is arranged in the middle part of the support plate, the middle part of the crank plate is rotatably connected to the center seat, the second cylinder is arranged on the support seat, the output end of the second cylinder is rotatably connected to the upper end of the crank plate, the lower end of the crank plate is rotatably connected to the pulling rod, the end of the pulling rod is sleeved on the fixed rod, and the two ends of the fixed rod are respectively connected to the two groups of side plates.

5. The asphalt milling material crushing, screening and regeneration equipment according to claim 4 is characterized in that: The milling assembly also includes an air screen plate and a third cylinder. The left and right ends of the air screen plate are rotatably connected to the two groups of side plates respectively. The third cylinder is arranged on a stable seat. The output end of the third cylinder is connected to the air screen plate. The air screen plate is covered on the front end surface of the stable seat under the drive of the third cylinder, and the air outlet on the air screen plate faces the lower end of the milling roller.

6. The asphalt milling material crushing, screening and regeneration equipment according to claim 5 is characterized by: The stabilizing seat is provided with a feed hole which penetrates through and faces the milling roller. The milling assembly further comprises a feed box which covers the feed hole and is in communication with the feed hole.

7. The asphalt milling material crushing, screening and regeneration equipment according to claim 1 is characterized by: A plurality of groups of blocking columns are arranged in the stabilizing seat, and the blocking columns are distributed in the stabilizing seat in an array and face the milling roller.

8. A method for regenerating asphalt milling material according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Start the carrier vehicle and drive it to the asphalt road surface that needs to be excavated. During this process, the support plate is pushed forward by the first cylinder of the transmission assembly, so that the support plate is lifted upward with the support seat as the rotation center, and the milling assembly is kept away from the asphalt road surface that does not need to be excavated, ensuring that the milling roller remains suspended during the non-operation process; S2: After the carrier vehicle drives onto the asphalt pavement to be excavated, the first cylinder is activated to retract, so that the support plate gradually descends during the rotation process until the abutment plate at the bottom of the lifting plate on the side plate abuts against the asphalt pavement, and the downward movement of the stable seat is continuously maintained until the lifting plate is lifted up along the direction of the long hole; S3: Adjust the milling angle and drive the second cylinder to push. During the pushing process, the upper end of the crank plate moves toward the stable seat, and the lower end of the crank plate shrinks away from the stable seat. The lower end of the crank plate pulls the pulling rod, thereby driving the fixed rod to move backward, and finally the vertical chain abuts against the asphalt road surface, driving the third cylinder to push the air screen plate until the air screen plate covers the front of the stable seat, so that a relatively closed space is formed in the stable seat; S4: Start the motor to drive the milling roller to rotate. The milling roller contacts the asphalt pavement to perform on-site milling, digging and crushing. After the asphalt pavement is crushed, the crushed material will be kept under the stable seat due to the blocking of the vertical chain behind the stable seat. In the process of the crushed material jumping upward under the inertia of the milling roller, it is blocked by the blocking column to prevent the crushed material from splashing upward and flying out of the feed hole. At the same time, the air screen plate is started to blow the lower end of the milling roller through the air flow, so that the generated powder dust is blown out from the gap of the vertical chain, reducing the powder material after crushing. S5: After the asphalt crushing and air screening at this position are completed, the first cylinder is driven to slightly lift the stabilizing seat. During the lifting process of the stabilizing seat, the lifting plate falls down under the action of gravity and remains in contact with the road surface. At this time, the stabilizer, cement, water (or emulsified asphalt) and aggregate and other recycled materials in the feed box are fed into the position of the milling roller, and are driven to the crushed materials below for mixing as the milling roller rotates; S6: After the mixing is completed, the crushed materials are kept in place, and the second cylinder is driven to pull back, so that the vertical chain is away from the asphalt road surface, and the carrier is started to move forward until it leaves the asphalt road surface that has been milled, and then stops on the next section of the asphalt road surface that needs to be milled. The second cylinder is driven again to push out, and the milling is repeated after the vertical chain abuts against the asphalt road surface until the milling and crushed material mixing are completed on the asphalt road surface that needs to be repaired. Subsequently, the road mixer is used to mix and roll the new road surface on the spot.

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