An asphalt pavement repair device and method of use thereof

Abstract

The application belongs to the technical field of road surface repairing, and particularly relates to an asphalt road surface repairing device and a use method thereof. The device is used for solving the problems that after cutting is completed, an end face is formed in a circular arc shape, which influences the paving effect, and slotting and material supplementing are divided into two machines, and the two machines are not easy to be parallel during replacement, and are inconvenient to use. The device comprises a cart, an filler box is arranged on the top of the cart, a discharge port is arranged on the bottom of the filler box and is used for guiding material supplementing, an elliptical plate for discharging is rotatably arranged in the filler box, a crushing roller for cutting and crushing the damaged part is rotatably arranged on the bottom of the cart, and the first electric push rod, the second electric push rod and the motor are used in cooperation. The device can not only drive the sliding shovel to move downward to cut the road surface, but also can drive the crushing roller to crush the road surface, so that the device is convenient to clean. The device can also drive the material supplementing to continuously discharge, so that the device is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of road repair technology, and in particular to an asphalt road repair device and its usage method. Background Technology

[0002] After asphalt roads have been in use for a long time, local damage or cracks may appear, requiring timely repair by road maintenance workers to prevent further damage. In the existing asphalt road repair process, the asphalt in the damaged area needs to be removed first, and then new material needs to be filled in. Therefore, asphalt road repair equipment must have the function of grooving. For this situation, a special asphalt road grooving machine is generally used.

[0003] A search revealed an application with publication number [number missing] disclosing a method for repairing asphalt pavement. The grooving machine used in this method includes: a drive motor supported on the frame of a traveling mechanism via a rotating body; the output end of the drive motor is connected to two grooving blades via two sets of power transmission mechanisms, the two grooving blades being arranged in parallel; and clutch components on the two sets of power transmission mechanisms; a handle with a U-shaped connecting portion, both ends of which are rotatably mounted on the outer ends of two support shafts; and a pressing portion, one end of which is rotatably connected to the connecting portion, allowing the other end of the pressing portion to swing. This asphalt pavement repair method allows for switching between single-blade grooving and double-blade grooving functions as needed, with the double-blade grooving function significantly improving work efficiency.

[0004] The method also has the following disadvantages in use: the damaged area is grooved by a grooving knife, but the grooving knife is roller-shaped. After cutting, the end face forms an arc shape, which affects the fabric effect. In addition, grooving and replenishment are done by two separate machines, and it is not easy to keep them parallel during replacement, making it inconvenient to use. Summary of the Invention

[0005] The purpose of this invention is to solve the shortcomings of existing technologies, such as the end face forming an arc shape after cutting, which affects the material spreading effect, and the need for grooving and filling to be done by two separate machines, making it difficult to keep parallel during replacement and inconvenient to use. Therefore, this invention proposes an asphalt pavement repair device and its usage method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An asphalt pavement repair device includes a trolley, a filling box extending through the top of the trolley, a discharge port at the bottom of the filling box for guiding the filling material, and an elliptical plate for discharging material rotatably disposed inside the filling box.

[0008] The bottom of the trolley is equipped with a retractable and rotating shredding roller for cutting and crushing the damaged area. A motor is located on one side of the trolley, and the output end of the motor is connected to the shredding roller to drive the shredding roller to rotate.

[0009] The crushing roller includes a rotating roller, and a plurality of staggered crushing spoons are fixedly provided on the outer wall of the rotating roller, and a cutting blade is fixedly sleeved on the outer wall of the rotating roller;

[0010] A sliding shovel is slidably mounted on the top of the cart, and a counterweight is mounted above the cart. The counterweight falls freely downwards, causing the sliding shovel to cut off the road surface.

[0011] The first transmission mechanism is located on the top of the trolley. It is used to drive the crushing roller to retract and move the counterweight to the highest point through the crushing roller, and make the counterweight fall downward. When the crushing roller extends, it crushes and cuts the ground.

[0012] The second transmission mechanism is mounted on the crushing roller and works in conjunction with the first transmission mechanism to drive the elliptical plate to rotate for feeding.

[0013] In one possible design, the first transmission mechanism includes two first sliding rods that slide through the top of the trolley, a counterweight that is fixedly mounted on the top of the two first sliding rods, an extension plate that is fixedly mounted on the bottom of the first sliding rods, a first rotating plate that cooperates with the extension plate that is fixedly mounted on the outer wall of the crushing roller, and bolts that are threaded through both sides of the trolley, with one end of the bolts abutting against the first sliding rods.

[0014] In one possible design, the bottom of the trolley is fixedly provided with two support plates, and a second rotating plate is rotatably provided on one side of the support plates. The crushing roller is rotatably disposed between the two second rotating plates. The motor is fixedly disposed on one side of one of the second rotating plates. A first waist-shaped hole is opened on one side of the second rotating plate. A first sliding column is slidably provided on the inner wall of the first waist-shaped hole. A lifting plate is fixedly provided on the inner side of the first sliding column. The lifting plate slides through and is limited on the trolley.

[0015] In one possible design, a wedge block that works with a counterweight is slidably mounted on the top of the trolley. A first electric push rod is fixedly mounted on one side of the wedge block, and a second electric push rod is fixedly mounted on one side of the filling box. The output ends of the first and second electric push rods are fixedly connected. A second obliquely shaped hole is opened on one side of the wedge block, and a connecting rod is slidably mounted in the second obliquely shaped hole. The connecting rod is fixed between the two lifting plates.

[0016] In one possible design, the second transmission mechanism includes a connecting shaft fixedly mounted on one end of the crushing roller and the elliptical plate. A rotating ring is rotatably sleeved on the outer wall of the connecting shaft. A second fixed ring and a first fixed ring are fixedly sleeved on the outer wall of the rotating ring. Four fourth sliding rods are slidably mounted on one side of the second fixed ring. An arc-shaped plate is fixedly mounted on one end of each fourth sliding rod. A second sliding column is fixedly mounted on the outer wall of each fourth sliding rod. A third oblong hole corresponding to the second sliding column is opened at one end of the first fixed ring. The second sliding column is slidably mounted in the third oblong hole. The outer walls of the two sets of arc-shaped plates are fitted with the same synchronous belt. A rotating wheel located in the four arc-shaped plates is fixedly sleeved on the outer wall of the connecting shaft.

[0017] In one possible design, the outer wall of the fourth sliding rod is fitted with a second spring, and the two ends of the second spring are respectively fixedly connected to the second fixing ring and the side of the arc-shaped plate that are close to each other.

[0018] In one possible design, a limiting plate is fixedly provided on the inner wall of the stuffing box, the elliptical plate is located between the limiting plate and one side of the inner wall of the stuffing box, a rectangular hole is opened at one end of the elliptical plate, a rectangular strip is slidably provided in the rectangular hole, a rotating shaft is rotatably provided through both sides of the stuffing box, the rectangular strip is fixedly provided between the two rotating shafts, and the connecting shaft is fixedly provided at one end of one of the rotating shafts.

[0019] In one possible design, the top of the trolley is provided with two internal threaded sleeves that rotate through it. The outer walls of the internal threaded sleeves and the rotating shaft are both fixedly fitted with meshing bevel gears. The internal threaded sleeves are connected to a screw rod. A connecting post located in the stuffing box is fixedly provided on one side of the screw rod. The bottom of the two connecting posts is fixedly provided with the same pressure plate.

[0020] In one possible design, two third sliding rods are slidably provided through the top of the trolley, and both third sliding rods are fixedly connected to the sliding shovel. A first spring is sleeved on the outer wall of the third sliding rod, and the two ends of the first spring are fixedly connected to the trolley and the sliding shovel respectively on the side of the trolley and the side of the sliding shovel that are close to each other.

[0021] A method of using an asphalt pavement repair device includes the following steps:

[0022] S1. First, move the device to the working area, start the motor to drive the crushing roller to rotate, drive the counterweight to move up and down, and strike the sliding shovel to cut off the road surface.

[0023] S2. Start the second electric push rod and the first electric push rod to drive the wedge block to move, drive the counterweight block to move upward, and at the same time drive the crushing roller to contact the ground for cutting and crushing;

[0024] S3. Pour the fabric into the filling box, start the second electric push rod or retract the first electric push rod to drive the crushing roller away from the ground, start the motor to drive the crushing roller to rotate, and drive the elliptical plate to rotate through the synchronous belt to feed the material;

[0025] S4. Simultaneously, the pressure plate moves downward within the stuffing box, pressing the material inside the stuffing box downward.

[0026] In this application, when in use, the device is moved to the road surface to be repaired, the motor is started to drive the crushing roller to rotate, the crushing roller can drive the first rotating plate to rotate, and at the same time, it can move the counterweight upward through the extension plate. When the first rotating plate is separated from the extension plate, the counterweight, under the action of gravity, hammers the sliding shovel to move downward, which can cut the damaged part of the road surface from the intact part.

[0027] Then, the first and second electric push rods are activated to move the wedge. The movement of the wedge can drive the connecting rod to move downward through the second oblong hole, causing the second rotating plate to rotate downward, so that the crushing roller contacts the ground. The cutting blade can cut the damaged area to form a rectangle. The crushing spoon crushes the damaged area while moving until it reaches the other end of the damaged area. Then, the first and second electric push rods are activated to reset. The counterweight drives the sliding shovel to cut it and clean the cut area.

[0028] Then, the feed material is placed in the filling box, and the first or second electric push rod is activated to extend and drive the second rotating plate to rotate downward, so that the distance between the crushing roller and the rotating shaft is maximized. At the same time, the synchronous belt and the first fixed ring can drive the four arc plates to move closer to each other to clamp the rotating wheel. At this time, the motor drives the crushing roller to rotate, which can drive the rotating shaft to rotate through the synchronous belt. The rotation of the rotating shaft can drive the rectangular bar to rotate, and the rotation of the rectangular bar can drive the elliptical plate to rotate. Through the limiting plate, the elliptical plate slides on the rectangular bar, so that during the rotation, the feed material on one side of the limiting plate can be pressed into the discharge port and fall onto the cut road surface.

[0029] As the rotating shaft rotates, it drives the inner threaded sleeve to rotate via the bevel gear. Through the connecting column and screw, it drives the pressure plate to move inside the filling box, pressing the filling material inside the filling box downwards. This allows the filling material to be discharged while being pressed downwards until the road surface is filled.

[0030] In this invention, the asphalt pavement repair device can increase the moving distance of the wedge by activating the first and second electric push rods, so that the sliding shovel can be driven by the motor to press downward and cut the pavement. The cutting blade can cut the pavement more evenly and facilitate the treatment of the damaged pavement.

[0031] In this invention, the asphalt pavement repair device, by setting two sets of arc plates, can drive the synchronous belt to tighten and expand when the second rotating plate rotates, making it easier to control the synchronous rotation of the crushing roller and the rotating shaft, and the synchronous belt will not detach from the arc plates, which can achieve the effect of saving power source and reducing manufacturing cost.

[0032] In this invention, the asphalt pavement repair device, through the cooperation of an elliptical plate and a limiting plate, enables continuous material discharge, preventing the repair material from falling entirely onto the pavement and improving the repair effect.

[0033] In this invention, the combined use of the first electric push rod, the second electric push rod, and the motor not only drives the sliding shovel to move downward to cut off the road surface, but also drives the crushing roller to crush the road surface, making it easy to clean. It can also drive the continuous feeding of replenishing materials, making it convenient to use. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural schematic diagram of an asphalt pavement repair device proposed in this invention;

[0035] Figure 2 This is a three-dimensional structural schematic diagram of an asphalt pavement repair device proposed in this invention from another perspective;

[0036] Figure 3 This is a schematic diagram of the wedge block structure of an asphalt pavement repair device proposed in this invention;

[0037] Figure 4 This is a schematic diagram of the sliding shovel structure of an asphalt pavement repair device proposed in this invention;

[0038] Figure 5 This is a schematic diagram of the crushing roller structure of an asphalt pavement repair device proposed in this invention;

[0039] Figure 6 This is an exploded view of the filler box structure of an asphalt pavement repair device proposed in this invention;

[0040] Figure 7 This is a cross-sectional view of the filling box structure of an asphalt pavement repair device proposed in this invention;

[0041] Figure 8 This is a schematic diagram of the synchronous belt connection structure of an asphalt pavement repair device proposed in this invention;

[0042] Figure 9 This is a schematic diagram of the fixing ring structure of an asphalt pavement repair device proposed in this invention.

[0043] In the diagram: 1. Trolley; 2. Filler box; 3. Discharge port; 4. Wedge; 5. Counterweight; 6. Crushing roller; 61. Rotating roller; 62. Crushing spoon; 63. Cutting blade; 7. Motor; 9. Synchronous belt; 10. Sliding shovel; 11. First sliding rod; 12. Extension plate; 13. First rotating plate; 14. Support plate; 15. Second rotating plate; 16. First oblong hole; 17. First sliding column; 18. Lifting plate; 19. Connecting rod; 20. Second oblong hole; 21. First electric push rod; 22. Second electric push rod. 23. Push rod; 24. Bolt; 25. Third sliding rod; 26. First spring; 30. Rotating shaft; 31. Elliptical plate; 32. Limiting plate; 33. Inner threaded sleeve; 34. Bevel gear; 36. Pressure plate; 37. Connecting column; 38. Screw; 39. Rectangular hole; 40. Rectangular bar; 41. Rotating ring; 42. First fixing ring; 43. Third waist-shaped hole; 44. Second sliding column; 45. Fourth sliding rod; 46. Arc plate; 47. Rotating wheel; 48. Second spring; 49. Connecting shaft; 50. Second fixing ring. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0045] Example 1

[0046] Reference Figures 1-7 An asphalt pavement repair device, which is used in the field of pavement repair, includes: a trolley 1, a filling box 2 is provided through the top of the trolley 1, a discharge port 3 is provided at the bottom of the filling box 2 for guiding the filling material, and an elliptical plate 31 for discharging material is rotatably provided inside the filling box 2.

[0047] The bottom of the trolley 1 is equipped with a retractable and rotating crushing roller 6 for cutting and crushing the damaged area. A motor 7 is provided on one side of the trolley 1. The output end of the motor 7 is connected to the crushing roller 6, which drives the crushing roller 6 to rotate.

[0048] The crushing roller 6 includes a rotating roller 61, and a plurality of staggered crushing spoons 62 are fixedly provided on the outer wall of the rotating roller 61. A cutting blade 63 is fixedly sleeved on the outer wall of the rotating roller 61.

[0049] A sliding shovel 10 is slidably mounted on the top of the cart 1, and a counterweight 5 is mounted above the cart 1. The counterweight 5 falls freely downwards, causing the sliding shovel 10 to cut off the road surface.

[0050] The first transmission mechanism is set on the top of the trolley 1. It is used to drive the crushing roller 6 to retract and drive the counterweight 5 to move to the highest point through the crushing roller 6, and make the counterweight 5 fall downward. When the crushing roller 6 extends, it crushes and cuts the ground.

[0051] The second transmission mechanism is mounted on the crushing roller 6 and works in conjunction with the first transmission mechanism to drive the elliptical plate 31 to rotate for material feeding. The first transmission mechanism enables the crushing roller 6 to extend and retract, allowing it to work with the counterweight 5 to drive the sliding shovel 10 to cut the road surface. Simultaneously, the extended crushing roller 6 can crush and cut the road surface, making it smoother. Furthermore, the second transmission mechanism enables the elliptical plate 31 to rotate for even material feeding, making it convenient to use.

[0052] The first transmission mechanism includes two first sliding rods 11 that slide through the top of the trolley 1. A counterweight 5 is fixedly mounted on the top of the two first sliding rods 11. An extension plate 12 is fixedly mounted on the bottom of the first sliding rods 11. A first rotating plate 13 that cooperates with the extension plate 12 is fixedly sleeved on the outer wall of the crushing roller 6. Bolts 23 are threaded through both sides of the trolley 1. One end of the bolt 23 abuts against the first sliding rod 11. Rotating the bolt 23 moves one end of the bolt 23 away from the first sliding rod 11. The rotation of the crushing roller 6 can drive the first rotating plate 13 to rotate. When the first rotating plate 13 contacts the extension plate 12, it will drive the extension plate 12 to move upward. The first sliding rods 11 will drive the counterweight 5 to move upward. When the first rotating plate 13 is separated from the extension plate 12, the counterweight 5 falls downward under the action of gravity and impacts the sliding shovel 10, causing the sliding shovel 10 to insert into the road surface for cutting.

[0053] The second transmission mechanism includes a connecting shaft 49 fixedly mounted on one end of the crushing roller 6 and the elliptical plate 31. A rotating ring 41 is rotatably sleeved on the outer wall of the connecting shaft 49. A second fixed ring 50 and a first fixed ring 42 are fixedly sleeved on the outer wall of the rotating ring 41. Four fourth sliding rods 45 are slidably mounted on one side of the second fixed ring 50. An arc-shaped plate 46 is fixedly mounted on one end of the fourth sliding rod 45. A second sliding column 44 is fixedly mounted on the outer wall of the fourth sliding rod 45. A third waist-shaped hole 43 corresponding to the second sliding column 44 is opened on one end of the first fixed ring 42. The second sliding column 44 is slidably mounted in the third waist-shaped hole 43. The same synchronous belt 9 is sleeved on the outer wall of the two sets of arc plates 46. A rotating wheel 47 located in the four arc plates 46 is fixedly sleeved on the outer wall of the connecting shaft 49. The rotation of the second rotating plate 15 will drive the crushing roller 6 to move. When the distance between the two connecting shafts 49 is the longest, the four arc plates 46 can be contracted through the synchronous belt 9 to clamp the rotating wheel 47. At this time, the rotation of the crushing roller 6 can drive the elliptical plate 31 to rotate for feeding through the synchronous belt 9.

[0054] Two support plates 14 are fixedly installed at the bottom of the trolley 1. A second rotating plate 15 is rotatably installed on one side of the support plate 14. The crushing roller 6 is rotatably installed between the two second rotating plates 15. The motor 7 is fixedly installed on one side of one of the second rotating plates 15. A first waist-shaped hole 16 is opened on one side of the second rotating plate 15. A first sliding column 17 is slidably installed on the inner wall of the first waist-shaped hole 16. A lifting plate 18 is fixedly installed on the inner side of the first sliding column 17. The lifting plate 18 slides through and is limited on the trolley 1. By pulling the lifting plate 18 upward, the first sliding column 17 can be driven to slide in the first waist-shaped hole 16, thereby driving the second rotating plate 15 to rotate, so that the first rotating plate 13 moves to one side of the extension plate 12.

[0055] The outer wall of the fourth sliding rod 45 is fitted with a second spring 48. The two ends of the second spring 48 are fixedly connected to the second fixed ring 50 and the arc plate 46 respectively. By setting the second spring 48, when the distance between the two connecting shafts 49 is shortened, the arc plate 46 can expand outward under the force of the second spring 48, which makes it easier to control the rotation of the connecting shafts 49.

[0056] Example 2

[0057] refer to Figures 1-9 An improvement based on embodiment 1 is made as follows: two third sliding rods 25 are slidably provided through the top of the trolley 1. Both third sliding rods 25 are fixedly connected to the sliding shovel 10. A first spring 26 is sleeved on the outer wall of the third sliding rod 25. The two ends of the first spring 26 are fixedly connected to the trolley 1 and the sliding shovel 10 respectively on the side that are close to each other. The setting of the first spring 26 can make the sliding shovel 10 automatically return to its original position after it moves downward, making it convenient to use.

[0058] The top of the trolley 1 is slidably equipped with a wedge 4 that works in conjunction with the counterweight 5. A first electric push rod 21 is fixedly mounted on one side of the wedge 4, and a second electric push rod 22 is fixedly mounted on one side of the filling box 2. The output ends of the first electric push rod 21 and the second electric push rod 22 are fixedly connected. A second oblong hole 20 is opened on one side of the wedge 4. A connecting rod 19 is slidably mounted in the second oblong hole 20. The connecting rod 19 is fixed between the two lifting plates 18. By simultaneously activating the first electric push rod 21 and the second electric push rod 22 to extend, the wedge 4 can be moved. The wedge 4 drives the counterweight 5 to move upward through the inclined surface at one end, so that the extension plate 12 moves away from the first rotating plate 13. At the same time, the connecting rod 19 moves downward through the second oblong hole 20, which drives the lifting plate 18 to move downward, thereby driving the crushing roller 6 to contact the ground to cut and crush it.

[0059] A limiting plate 32 is fixedly installed on the inner wall of the stuffing box 2. An elliptical plate 31 is located between the limiting plate 32 and the inner wall of one side of the stuffing box 2. A rectangular hole 39 is opened at one end of the elliptical plate 31. A rectangular strip 40 is slidably installed in the rectangular hole 39. Rotating shafts 30 are rotatably installed through both sides of the stuffing box 2. The rectangular strip 40 is fixed between the two rotating shafts 30. A connecting shaft 49 is fixed at one end of one of the rotating shafts 30. The connecting shaft 49 drives the rotating shaft 30 to rotate, which can drive the rectangular strip 40 to rotate. When the elliptical plate 31 rotates to a vertical position, the feed material will fall through one side of the elliptical plate 31. Continuing to rotate can drive the elliptical plate 31 to move on the rectangular strip 40 through the limiting plate 32. Continuing to rotate can squeeze the feed material on one side of the limiting plate 32 out through the discharge port 3.

[0060] The top of the trolley 1 is rotatably equipped with two internal threaded sleeves 33. The outer walls of the internal threaded sleeves 33 and the rotating shaft 30 are both fixedly fitted with meshing bevel gears 34. The internal threaded sleeves 33 are connected to a screw 38. A connecting post 37 located in the stuffing box 2 is fixedly installed on one side of the screw 38. The bottom of the two connecting posts 37 is fixedly equipped with the same pressure plate 36. The rotation of the rotating shaft 30 can drive the internal threaded sleeves 33 to rotate through the bevel gears 34. The rotation of the internal threaded sleeves 33 can drive the screw 38 to move downward, thereby driving the pressure plate 36 to move downward through the connecting post 37, pressing the filling material in the stuffing box 2 downward to facilitate material discharge.

[0061] A method of using an asphalt pavement repair device includes the following steps:

[0062] S1. First, move the device to the working area, start the motor 7 to drive the crushing roller 6 to rotate, drive the counterweight 5 to move up and down, and strike the sliding shovel 10 to cut off the road surface.

[0063] S2. Start the second electric push rod 22 and the first electric push rod 21 to move the wedge block 4, which in turn moves the counterweight block 5 upward, and at the same time moves the crushing roller 6 to contact the ground for cutting and crushing.

[0064] S3. Pour the fabric into the filling box 2, start the second electric push rod 22 or the first electric push rod 21 to retract, drive the crushing roller 6 away from the ground, start the motor 7 to drive the crushing roller 6 to rotate, and drive the elliptical plate 31 to rotate through the synchronous belt 9 to feed the material.

[0065] S4. Simultaneously, the pressure plate 36 moves downward within the stuffing box 2, pressing the material inside the stuffing box 2 downward.

[0066] However, as is well known to those skilled in the art, the working principles and wiring methods of the motor 7, the first electric push rod 21 and the second electric push rod 22 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0067] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An asphalt pavement repair device, comprising a trolley, wherein a filling box is provided through the top of the trolley, a discharge port is provided at the bottom of the filling box for guiding the filling material, and an elliptical plate for discharging material is rotatably provided inside the filling box; The bottom of the trolley is equipped with a retractable and rotating shredding roller for cutting and crushing the damaged area. A motor is located on one side of the trolley, and the output end of the motor is connected to the shredding roller to drive the shredding roller to rotate. The crushing roller includes a rotating roller, and a plurality of staggered crushing spoons are fixedly provided on the outer wall of the rotating roller, and a cutting blade is fixedly sleeved on the outer wall of the rotating roller; A sliding shovel is slidably mounted on the top of the cart, and a counterweight is located above the cart. The counterweight falls freely downwards, causing the sliding shovel to cut off the road surface. The characteristic of this design is... Also includes: The first transmission mechanism is located on the top of the trolley. It is used to drive the crushing roller to retract and move the counterweight to the highest point through the crushing roller, and make the counterweight fall downward. When the crushing roller extends, it crushes and cuts the ground. The second transmission mechanism, mounted on the crushing roller, works in conjunction with the first transmission mechanism to drive the elliptical plate to rotate for material feeding. The second transmission mechanism includes a connecting shaft fixedly mounted on one end of the crushing roller and the elliptical plate. A rotating ring is rotatably sleeved on the outer wall of the connecting shaft. A second fixed ring and a first fixed ring are fixedly sleeved on the outer wall of the rotating ring. Four fourth sliding rods are slidably mounted on one side of the second fixed ring. An arc-shaped plate is fixedly mounted on one end of each fourth sliding rod. A second sliding column is fixedly mounted on the outer wall of each fourth sliding rod. A third oblong hole corresponding to the second sliding column is opened at one end of the first fixed ring. The second sliding column slides within the third oblong hole. The outer walls of the two sets of arc-shaped plates are fitted with the same synchronous belt. A rotating wheel located within the four arc-shaped plates is fixedly sleeved on the outer wall of the connecting shaft. The fourth sliding rod... The outer wall of the packing box is fitted with a second spring, the two ends of which are fixedly connected to the second fixing ring and the adjacent side of the arc plate, respectively. The inner wall of the packing box is fixedly fitted with a limiting plate. The elliptical plate is located between the limiting plate and the inner wall of one side of the packing box. One end of the elliptical plate is provided with a rectangular hole. A rectangular strip is slidably provided in the rectangular hole. Rotating shafts are provided through both sides of the packing box. The rectangular strip is fixedly provided between the two rotating shafts. The connecting shaft is fixedly provided at one end of one of the rotating shafts. The top of the trolley is provided with two internal threaded sleeves. The outer walls of the internal threaded sleeves and the rotating shafts are fixedly fitted with meshing bevel gears. The internal threaded sleeves are connected to a screw. A connecting post located inside the packing box is fixedly provided on one side of the screw. The bottom of the two connecting posts is fixedly provided with the same pressure plate.

2. The asphalt pavement repair device according to claim 1, characterized in that, The first transmission mechanism includes two first sliding rods that slide through the top of the trolley. The counterweight is fixedly mounted on the top of the two first sliding rods. An extension plate is fixedly mounted on the bottom of the first sliding rod. A first rotating plate that cooperates with the extension plate is fixedly sleeved on the outer wall of the crushing roller. Bolts are threaded through both sides of the trolley, and one end of the bolts abuts against the first sliding rod.

3. The asphalt pavement repair device according to claim 2, characterized in that, The bottom of the trolley is fixedly provided with two support plates. A second rotating plate is rotatably provided on one side of the support plates. The crushing roller is rotatably disposed between the two second rotating plates. The motor is fixedly disposed on one side of one of the second rotating plates. A first waist-shaped hole is opened on one side of the second rotating plate. A first sliding column is slidably provided on the inner wall of the first waist-shaped hole. A lifting plate is fixedly provided on the inner side of the first sliding column. The lifting plate is slidably disposed on the trolley.

4. The asphalt pavement repair device according to claim 3, characterized in that, The top of the trolley is slidably provided with a wedge block that works in conjunction with the counterweight. A first electric push rod is fixedly provided on one side of the wedge block, and a second electric push rod is fixedly provided on one side of the filling box. The output ends of the first and second electric push rods are fixedly connected. A second oblong hole is opened on one side of the wedge block, and a connecting rod is slidably provided in the second oblong hole. The connecting rod is fixedly provided between the two lifting plates.

5. An asphalt pavement repair device according to claim 4, characterized in that, The top of the trolley is slidably provided with two third sliding rods, both of which are fixedly connected to the sliding shovel. The outer wall of each third sliding rod is fitted with a first spring, and the two ends of the first spring are fixedly connected to the trolley and the sliding shovel respectively on the side of the trolley and the sliding shovel that are close to each other.

6. The method of using the asphalt pavement repair device according to claim 5, characterized in that, Includes the following steps: S1. First, move the device to the working area, start the motor to drive the crushing roller to rotate, drive the counterweight to move up and down, and strike the sliding shovel to cut off the road surface. S2. Start the second electric push rod and the first electric push rod to drive the wedge block to move, drive the counterweight block to move upward, and at the same time drive the crushing roller to contact the ground for cutting and crushing; S3. Pour the fabric into the filling box, start the second electric push rod or retract the first electric push rod to drive the crushing roller away from the ground, start the motor to drive the crushing roller to rotate, and drive the elliptical plate to rotate through the synchronous belt to feed the material; S4. Simultaneously, the pressure plate moves downward within the stuffing box, pressing the material inside the stuffing box downward.

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