A hydraulic jacking system for rapid replacement of broken slabs of cement pavement

Abstract

The present application relates to a kind of hydraulic jacking system of cement pavement broken board quick replacement, including vehicle body, the top of the vehicle body is provided with horizontally extendable rectangular support frame along its length direction;Punching jacking system, including the punching mechanism for drilling to the pavement board to be replaced and the hydraulic jacking mechanism for separating the pavement board to be replaced from roadbed;Punching mechanism is realized in the pavement board to be replaced and drills out the top lifting hole of Chinese character type;Hydraulic jacking mechanism includes the jacking cylinder being arranged vertically downwards, the lower end of the cylinder body portion of jacking cylinder is hingedly arranged along its axial direction and is provided with several jacking rods for being connected in the inside of top lifting hole of Chinese character type, the lower end of the piston portion of the jacking cylinder is provided with the top lifting plate being contacted with the end surface of roadbed.The present application integrates punching, jacking, hoisting, and hydraulic jacking can smoothly separate pavement board and base layer, realize the removal to entire pavement board to be replaced, improve construction efficiency, guarantee roadbed from broken at the same time, also facilitate to observe the disease on roadbed.

Description

Technical Field

[0001] This invention relates to the field of road construction equipment technology, and in particular to a hydraulic jacking system for quick replacement of broken cement pavement slabs. Background Technology

[0002] Precast concrete pavement slabs are road structures that are pre-cast in a factory or prefabrication yard and then transported to the site for installation. Compared to traditional cast-in-place concrete pavements, they offer advantages such as faster construction speed, controllable quality, and less environmental impact, and are widely used in urban roads, temporary roads, rural roads, industrial areas, and other scenarios. During factory casting, precast concrete pavement slabs typically have embedded steel reinforcement meshes to enhance their flexural strength, ensuring that even if slabs break or crack during long-term use, the slabs will not completely separate.

[0003] When dismantling cement pavement slabs for replacement, traditional techniques typically involve using large hydraulic breakers to directly break the slabs, followed by manual cleanup. This violent breaking can easily damage the base layer, leading to secondary settlement after the new slabs are laid due to unevenness. Direct breaking also makes it difficult to observe hidden defects such as voids at the bottom of the slabs and water seepage in the base layer. Furthermore, the need to clean up the debris after breaking the slabs results in low replacement efficiency. In addition, rural roads are generally narrow, making it inconvenient for large machinery to operate on them. Summary of the Invention

[0004] In view of the above problems, the present invention provides a hydraulic jacking system for quick replacement of broken cement pavement slabs, which integrates drilling, jacking and hoisting, and realizes the assembly line operation of removing the entire pavement slab to be replaced and installing the new slab. This improves construction efficiency, ensures that the roadbed is not broken, and facilitates the observation of roadbed defects.

[0005] The specific technical solution is as follows:

[0006] A hydraulic jacking system for quick replacement of broken concrete pavement slabs, including

[0007] The vehicle body has a horizontally extending rectangular support frame on its top along its length, the length of which is greater than twice the length of the vehicle body.

[0008] The drilling and lifting system includes a drilling mechanism for drilling holes in the road panel to be replaced and a hydraulic lifting mechanism for separating the road panel to be replaced from the roadbed. The drilling mechanism and the hydraulic lifting mechanism are located at the front end of the rectangular support frame through a work station switching mechanism.

[0009] The drilling mechanism includes a drilling head and a drill bit. The drill bit drills a convex-shaped lifting hole on the road surface to be replaced through the drilling head, vertical displacement component, and circumferential displacement component.

[0010] The hydraulic jacking mechanism includes a jacking cylinder arranged vertically downwards. The upper end of the cylinder body of the jacking cylinder is connected to the work station switching mechanism through a first lifting assembly. The lower end of the cylinder body of the jacking cylinder is hinged along its axial direction with a plurality of jacking rods for engaging inside the convex-shaped jacking holes. The lower end of the piston of the jacking cylinder is provided with a jacking plate that contacts the end face of the roadbed.

[0011] Furthermore, the vehicle body is rectangular in shape, and includes a horizontal chassis and a lateral movement mechanism located directly above the horizontal chassis; the four corners at the lower end of the horizontal chassis are respectively provided with steering wheels for walking, turning and lateral movement and hydraulic cylinders for outriggers for stable support; the lateral movement mechanism includes a crossbeam for sliding relative to the two long sides of the rectangular support frame and a first drive assembly for horizontally moving the rectangular support frame.

[0012] Furthermore, the crossbeams are arranged along the length of the vehicle body, and the two crossbeams are located at both ends of the width of the vehicle body. Guide support grooves are respectively provided along the length of the side surfaces of the two crossbeams that are close to each other. The first drive assembly is located at the front end of the crossbeams. The first drive assembly includes a first motor, a first reducer, and a first rack on the outer side of the two long sides of the rectangular support frame, all mounted on the crossbeams. The front ends of the side surfaces of the two crossbeams that are far apart from each other are respectively provided with a first opening. A first gear is provided on the output shaft of the first reducer, and the first gear meshes with the first rack through the first opening.

[0013] Furthermore, each long side of the rectangular support frame is provided with a plurality of vertically penetrating second openings at equal intervals along the length direction, and each second opening is provided with a guide support wheel. The upper and lower inner walls of each guide support groove are respectively provided with limiting grooves that cooperate with the guide support wheel along the length direction.

[0014] Furthermore, the rectangular support frame is provided with retractable front support legs and retractable rear support legs at its front and rear ends, respectively. The retractable front support leg includes a front connecting seat, and a plurality of guide cylinders are provided at the lower end of the front connecting seat along the width direction of the rectangular support frame. The lower end of the guide cylinders is adapted to a telescopic rod, and the lower ends of the plurality of telescopic rods are horizontally connected to a front base. A front wheel assembly is provided at the lower end of the front base. The lower ends of the plurality of guide cylinders are also connected to a front cylinder seat. A plurality of telescopic cylinders are provided on the front cylinder seat and are arranged vertically downward. The piston part of the telescopic cylinder is connected to the front base. The structure of the retractable rear support leg is the same as that of the retractable front support leg.

[0015] Furthermore, the vertical displacement component includes a first vertical plate, on one side of which a first lead screw, a first guide rod, and a second motor for rotating the first lead screw are arranged vertically. A first ball nut block is adapted to the first lead screw, and a movable box is arranged on the side of the first ball nut block away from the first vertical plate. A first guide block adapted to the first guide rod is arranged on the movable box, and the circumferential displacement component is located inside the movable box.

[0016] Furthermore, the movable box includes a movable vertical plate for connecting with the first ball nut block, and a movable horizontal plate is provided on the upper end of the side of the movable vertical plate away from the first vertical plate; the circumferential displacement assembly includes a first rotating plate horizontally disposed below the movable horizontal plate and a third motor disposed above the movable horizontal plate for driving the first rotating plate to rotate around an axis, a first cylinder seat and a second cylinder seat are symmetrically disposed at both ends of the lower end face of the first rotating plate along its diameter, a first displacement cylinder is horizontally disposed on the first cylinder seat, and a second displacement cylinder is horizontally disposed on the second cylinder seat, the piston parts of the first displacement cylinder and the second displacement cylinder are disposed opposite each other and simultaneously connected to a head seat, the drilling head is vertically downward disposed through the connection of the head seat, and the upper end of the drill bit is connected to the rotating shaft of the drilling head through a clamp.

[0017] Furthermore, the first lifting component is either an electric hoist or a winch.

[0018] Furthermore, four drilling mechanisms and four hydraulic lifting mechanisms are provided, all arranged in a rectangular pattern, which can drill holes and lift the road panel to be replaced at the four corners.

[0019] Furthermore, the workstation switching mechanism includes a first top plate disposed on the rectangular support frame. A first switching component and a second switching component are respectively disposed at the front and rear ends of the lower end face of the first top plate. The first switching component enables the two drilling mechanisms and two hydraulic lifting mechanisms located in front to move away from each other and towards each other. The second switching component enables the two drilling mechanisms and two hydraulic lifting mechanisms located in the rear to move away from each other and towards each other. The first switching component and the second switching component work synchronously through a second drive component.

[0020] Furthermore, the first switching component includes a first double-threaded screw and a plurality of first support guide rods arranged along the width direction of the vehicle body. The two ends of the first double-threaded screw are respectively provided with a first thread and a second thread. The first thread and the second thread have the same pitch and opposite directions. A second ball nut block is adapted on the first thread, and a third ball nut block is adapted on the second thread. The drilling mechanism and the hydraulic lifting mechanism located on the front left are connected to the second ball nut block, and the drilling mechanism and the hydraulic lifting mechanism located on the front right are connected to the third ball nut block.

[0021] Furthermore, the second switching component includes a second double-threaded screw and several second support guide rods arranged along the width direction of the vehicle body. The two ends of the second double-threaded screw are respectively provided with a third thread and a fourth thread. The third thread and the fourth thread have the same pitch and opposite directions. A fourth ball nut block is adapted on the third thread, and a fifth ball nut block is adapted on the fourth thread. The drilling mechanism and the hydraulic lifting mechanism located on the rear left side are connected to the fourth ball nut block, and the drilling mechanism and the hydraulic lifting mechanism located on the rear right side are connected to the fifth ball nut block.

[0022] The second drive assembly includes a transmission rod arranged along the length of the vehicle body. The front end of the transmission rod is driven by the middle part of the first double-threaded screw through a first bevel gear pair. The rear end of the transmission rod is driven by the middle part of the second double-threaded screw through a second bevel gear pair. A second driven gear is arranged in the middle part of the transmission rod. A fourth motor is arranged on the lower end face of the first top plate. A second driving gear that meshes with the second driven gear is arranged on the shaft of the fourth motor.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The present invention provides a hydraulic jacking system for quick replacement of broken cement pavement slabs. By setting a drilling and jacking system at the front end of an extendable rectangular support frame, drilling, jacking and hoisting are integrated. The hydraulic jacking can smoothly separate the pavement slab from the base layer, realize the removal of the entire pavement slab to be replaced, improve construction efficiency, ensure that the roadbed is not broken, and facilitate the observation of defects on the roadbed.

[0025] (2) The present invention provides a hydraulic jacking system for quick replacement of broken cement pavement slabs. By integrating the drilling mechanism and the hydraulic jacking mechanism on the same equipment and using a work station switching mechanism to achieve quick switching, the cumbersome traditional step-by-step construction is avoided. The drilling mechanism uses a combination of vertical displacement components and circumferential displacement components to drill convex-shaped jacking holes on the pavement slab. Combined with the jacking rod snap-fit ​​structure of the hydraulic jacking mechanism, it ensures uniform force during the jacking process and avoids damage to the pavement slab or jacking failure. By setting four drilling mechanisms and hydraulic jacking mechanisms and using a work station switching mechanism to adjust their spacing, it can adapt to the replacement needs of pavement slabs of different sizes and improve the versatility of the equipment.

[0026] (3) The present invention provides a hydraulic jacking system for quick replacement of broken cement pavement slabs. By integrating a piezoelectric ceramic ring array and a negative pressure chamber inside the jacking plate, the negative pressure chamber can suck out the dust in the hole when the hydraulic jacking mechanism moves down into the convex jacking hole, which facilitates the lowering of the hydraulic jacking mechanism. The piezoelectric ceramic ring array can apply high-frequency micro-amplitude vibration during the jacking process. The vibration energy can be transmitted to the pavement slab-subgrade interface, which can quickly cause the physical and chemical bonding between the cement paste and the base layer to fail, reducing the jacking force required for separation. In addition, the high-frequency vibration forms a micro-air gap at the bottom of the pavement slab to be replaced, eliminating the negative pressure adsorption effect caused by the humid environment, thus optimizing the separation process between the pavement slab to be replaced and the subgrade from a physical and mechanical perspective.

[0027] (4) The present invention provides a hydraulic jacking system for quick replacement of broken cement pavement slabs. By setting a new road panel hoisting system at the rear end of a rectangular support frame, the new road panel can be moved to the roadbed gap simultaneously while the entire road panel to be replaced is removed from the roadbed, thereby improving construction efficiency.

[0028] (5) The present invention provides a hydraulic jacking system for quick replacement of broken cement pavement slabs. By setting a roadbed repair system in the middle of a rectangular support frame, the system collects image information of the roadbed through an image acquisition module and identifies defects on the roadbed. The system can grout and repair defects on the roadbed through the operation of a six-axis robotic arm and a third drive component, thereby further improving the replacement effect of cement pavement slabs. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention.

[0030] Figure 2 This is a schematic diagram of the drilling and lifting system of the present invention.

[0031] Figure 3 This is a schematic diagram of the hydraulic lifting mechanism of the present invention.

[0032] Figure 4 This is a schematic diagram of the transverse movement mechanism of the present invention.

[0033] Figure 5 This is the present invention. Figure 4 A magnified view of part A.

[0034] Figure 6 This is a schematic diagram of the retractable front support leg structure of the present invention.

[0035] Figure 7 This is a schematic diagram of the punching mechanism of the present invention.

[0036] Figure 8 This is a schematic diagram of the punching mechanism of the present invention from another angle.

[0037] Figure 9This is a schematic diagram of the workstation switching mechanism of the present invention.

[0038] Figure 10 This is a schematic diagram of the hydraulic lifting mechanism of the present invention during lifting.

[0039] Figure 11 This is the present invention. Figure 10 A magnified view of part B.

[0040] Figure 12 This is a schematic diagram of the new road panel hoisting system of the present invention.

[0041] Figure 13 This is a schematic diagram of the second top plate structure of the present invention.

[0042] Figure 14 This is a schematic diagram of the roadbed repair system of the present invention.

[0043] Figure 15 This is a schematic diagram of the third driving component structure of the present invention.

[0044] In the diagram: 1. Vehicle body; 11. Horizontal chassis; 12. Lateral movement mechanism; 121. Crossbeam; 122. First drive assembly; 123. Guide support groove; 124. First rack; 125. First opening; 126. First gear; 127. Guide support wheel; 128. Limiting groove; 13. Telescopic front outrigger; 131. Front connecting seat; 132. Guide cylinder; 133. Telescopic rod; 134. Front base; 135. Front wheel assembly; 136. Front cylinder seat; 137. Telescopic cylinder; 14. Telescopic rear outrigger; 2. Rectangular support frame; 3. Drilled lifting mechanism. System; 4. Drilling Mechanism; 41. Drilling Head; 42. Drill Bit; 43. Vertical Displacement Assembly; 431. First Vertical Plate; 432. First Lead Screw; 433. First Guide Rod; 434. Second Motor; 435. First Ball Nut Block; 436. Movable Box; 437. First Guide Block; 44. Circumferential Displacement Assembly; 441. First Rotating Plate; 442. Third Motor; 443. First Cylinder Seat; 444. Second Cylinder Seat; 445. First Displacement Cylinder; 446. Second Displacement Cylinder; 447. Headstock; 5. Hydraulic Lifting Mechanism; 51. Lifting 52. Hydraulic cylinder; 53. First lifting assembly; 54. Lifting rod; 55. Lifting plate; 56. Annular restraint ring; 57. First connecting rod; 58. Arc-shaped actuating piece; 59. Limiting piece; 50. Piezoelectric ceramic ring array; 510. Negative pressure chamber; 511. Negative pressure hole; 6. Station switching mechanism; 61. First top plate; 63. Second switching assembly; 621. First double-threaded lead screw; 622. First support guide rod; 623. First thread; 624. Second thread; 625. Second ball bearing nut block; 626. Third ball bearing nut block; 641. Transmission rod; 642. 643. First bevel gear pair; 644. Second bevel gear pair; 645. Second driven gear; 646. Second driving gear; 647. Fourth motor; 7. Road panel to be replaced; 8. T-shaped lifting hole; 91. Lifting mechanism; 911. Second lifting assembly; 912. Second rotating plate; 913. Fifth motor; 914. Arc-shaped opening; 92. Second top plate; 10. Intermediate transition plate; 15. Six-axis robotic arm; 16. Movable seat; 17. Second rack; 18. Third support guide rod; 19. Third guide slider; 20. Third gear; 21. Sixth motor. Detailed Implementation

[0045] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0047] Example 1

[0048] This invention provides a hydraulic jacking system for quick replacement of broken concrete pavement slabs, see reference. Figure 1 , Figure 2 and Figure 3 The vehicle includes a vehicle body 1, and a rectangular support frame 2 extending horizontally along the length of the top of the vehicle body 1. The length of the rectangular support frame 2 is greater than twice the length of the vehicle body 1.

[0049] The drilling and lifting system 3 includes a drilling mechanism 4 for drilling holes in the road panel 7 to be replaced and a hydraulic lifting mechanism 5 for separating the road panel 7 to be replaced from the roadbed. The drilling mechanism 4 and the hydraulic lifting mechanism 5 are located at the front end of the rectangular support frame 2 via a work station switching mechanism 6.

[0050] The drilling mechanism 4 includes a drilling head 41 and a drill bit 42. The drill bit 42 drills a convex-shaped lifting hole 8 on the road panel 7 to be replaced through the drilling head 41, the vertical displacement component 43, and the circumferential displacement component 44.

[0051] The hydraulic lifting mechanism 5 includes a lifting cylinder 51 arranged vertically downwards. The upper end of the cylinder body of the lifting cylinder 51 is connected to the work station switching mechanism 6 through a first lifting assembly 52. ​​The lower end of the cylinder body of the lifting cylinder 51 is hinged along its axial direction with a plurality of lifting rods 53 for engaging inside the convex lifting hole 8. The lower end of the piston of the lifting cylinder 51 is provided with a lifting plate 54 that contacts the end face of the roadbed.

[0052] Furthermore, as a specific implementation method, refer to Figure 1 , Figure 4 and Figure 5The vehicle body 1 is rectangular in shape and includes a horizontal chassis 11 and a lateral movement mechanism 12 located directly above the horizontal chassis 11. At the four corners of the lower end of the horizontal chassis 11, steering wheels for walking, turning, and lateral movement, and hydraulic cylinders for outriggers for stabilization are respectively provided. The lateral movement mechanism 12 includes a crossbeam 121 for sliding relative to the two long sides of the rectangular support frame 2 and a first drive assembly 122 for horizontally moving the rectangular support frame 2. The crossbeam 121 is arranged along the length of the vehicle body 1, with two crossbeams 121 located at opposite ends of the width of the vehicle body 1. Guide support grooves 123 are respectively provided along the length of the side of the two crossbeams 121 that are close to each other. The first drive assembly 122 is located at the front end of the crossbeam 121. The first drive assembly 122 includes a first motor, a first reducer, and a first rack 124 on the outer sides of the two long sides of the rectangular support frame 2, all mounted on the crossbeams 121. The front ends of the two crossbeams 121 on opposite sides are respectively provided with first openings 125. A first gear 126 is provided on the output shaft of the first reducer, and the first gear 126 meshes with the first rack 124 through the first openings 125. Each long side of the rectangular support frame 2 has multiple vertically penetrating second openings at equal intervals along its length. Each second opening contains a guide support wheel 127. The upper and lower inner walls of each guide support groove 123 are respectively provided with limiting grooves 128 along their length that cooperate with the guide support wheel 127. The vehicle body 1 moves to the vicinity of the road panel 7 to be replaced via the bottom steering wheel and is stably supported by the outrigger hydraulic cylinders to ensure that the equipment does not shift during construction. The rectangular support frame 2 can slide forward or backward between the two crossbeams 121. The synchronous operation of the two first motors drives the two first gears 126 to rotate synchronously, thereby driving the two first racks 124 to move, realizing the forward or backward movement of the rectangular support frame 2. The setting of the guide support wheel 127 and the limiting groove 128 can reduce the friction between the rectangular support frame 2 and the two guide support grooves 123.

[0053] Furthermore, as one implementation method, refer to Figure 1 and Figure 6The rectangular support frame 2 is provided with a retractable front support leg 13 and a retractable rear support leg 14 at its front and rear ends, respectively. The retractable front support leg 13 includes a front connecting seat 131. The lower end of the front connecting seat 131 is provided with a plurality of guide cylinders 132 along the width direction of the rectangular support frame 2. The lower end of the guide cylinders 132 is adapted to a telescopic rod 133. The lower ends of the plurality of telescopic rods 133 are horizontally connected to a front base 134. The lower end of the front base 134 is provided with a front wheel assembly 135. The lower ends of the plurality of guide cylinders 132 are also connected to a front cylinder seat 136. The front cylinder seat 136 is provided with a plurality of vertically downward telescopic cylinders 137. The piston part of the telescopic cylinder 137 is connected to the front base 134. The structure of the retractable rear support leg 14 is the same as that of the retractable front support leg 13. After the rectangular support frame 2 is positioned, the telescopic cylinders 137 of the telescopic front support leg 13 and the telescopic rear support leg 14 can push the front base 134 down, so that the front wheel assembly 135 contacts the ground, thereby enhancing the stability of the equipment.

[0054] Furthermore, as a specific implementation method, refer to Figure 2 , Figure 7 and Figure 8 The vertical displacement component 43 includes a first vertical plate 431. A first lead screw 432, a first guide rod 433, and a second motor 434 for rotating the first lead screw 432 are arranged vertically on one side of the first vertical plate 431. A first ball nut block 435 is adapted to the first lead screw 432. A movable box 436 is arranged on the side of the first ball nut block 435 away from the first vertical plate 431. A first guide block 437 adapted to the first guide rod 433 is arranged on the movable box 436. The circumferential displacement component 44 is located inside the movable box 436. The width of the first vertical plate 431 is set along the length of the vehicle body 1, and the length of the first vertical plate 431 is set vertically. All the structures on the side of the first vertical plate 431 are set towards the outside of the vehicle body 1. The operation of the second motor 434 can drive the rotation of the first lead screw 432, which in turn drives the first ball nut block 435 to move up or down, so as to realize the descent or descent of the drilling head 41 and the drill bit 42. When descending, the drill bit 42 approaches the surface of the road panel 7 to be replaced. The drilling head 41 starts working and drives the drill bit 42 to rotate. As the drill bit 42 descends, it drills a hole in the road panel 7 to be replaced until it penetrates the lower end surface of the road panel 7 to be replaced and then stops descending. However, the drill bit 42 continues to rotate. At this time, the drill hole is cylindrical.

[0055] Furthermore, as a specific implementation method, refer to Figure 2 , Figure 7 and Figure 8The movable box 436 includes a movable vertical plate for connecting with the first ball nut block 435. A movable horizontal plate is provided on the upper side of the movable vertical plate away from the first vertical plate 431. The circumferential displacement assembly 44 includes a first rotating plate 441 horizontally disposed below the movable horizontal plate and a third motor 442 disposed above the movable horizontal plate for driving the first rotating plate 441 to rotate around an axis. A first cylinder seat 443 and a second cylinder seat 444 are symmetrically disposed at both ends of the lower end face of the first rotating plate 441 along its diameter. A first displacement cylinder 445 is horizontally disposed on the first cylinder seat 443, and a second displacement cylinder 446 is horizontally disposed on the second cylinder seat 444. The piston parts of the first displacement cylinder 445 and the second displacement cylinder 446 are arranged opposite to each other and are simultaneously connected to a head seat 447. The drilling head 41 is vertically downwardly disposed through the connection of the head seat 447. The upper end of the drill bit 42 is connected to the rotating shaft of the drilling head 41 through a clamp. A first rotating shaft is coaxially mounted on the upper end of the first rotating plate 441. The first rotating shaft is connected to the movable horizontal plate through a bearing. The rotating shaft of the third motor 442 transmits power to the first rotating shaft. The drill bit 42 is cylindrical and is a diamond drill bit. The first displacement cylinder 445 and the second displacement cylinder 446 work synchronously but in opposite ways. In the initial state, the extension and retraction lengths of the first displacement cylinder 445 and the second displacement cylinder 446 are the same, that is, the drilling head 41 is coaxial with the first rotating plate 441 and the first rotating shaft. After drill bit 42 penetrates the lower end face of the road panel 7 to be replaced, drill bit 42 continues to rotate. Through the retraction of the first displacement cylinder 445 and the extension of the second displacement cylinder 446, drill bit 42 moves towards the lower edge of the cylindrical borehole. After being displaced to a preset length (at which point the drilling head 41, the first rotating plate 441, and the first rotating shaft are no longer coaxial), the slow rotation of the third motor 442 drives drill bit 42 to move circumferentially around the axis of the first rotating shaft, thereby cutting the cylindrical borehole into a convex-shaped lifting hole 8. The circumferential displacement component 44 controls the drill bit 42 to perform eccentric movement, forming a convex-shaped hole structure that is smaller at the top and larger at the bottom. After drilling is completed, the first displacement cylinder 445 and the second displacement cylinder 446 reset, and the vertical displacement component 43 lifts drill bit 42 back to its original position.

[0056] Furthermore, as a specific implementation method, refer to Figure 2 The first lifting component 52 is either an electric hoist or a winch. In this embodiment, an electric hoist is preferred.

[0057] Furthermore, as one implementation method, refer to Figure 1 and Figure 2 The drilling mechanism 4 and the hydraulic lifting mechanism 5 are each provided in four and are arranged in a rectangular shape, which can drill holes and lift the road panel 7 to be replaced at the four corners.

[0058] Furthermore, as one implementation, the drilling mechanism 4 and the hydraulic lifting mechanism 5 can be configured as six, eight, ten or other even numbers, arranged in pairs at equal intervals along the front and rear direction of the first top plate 61.

[0059] Furthermore, as a specific implementation method, refer to Figure 1 , Figure 2 and Figure 9 The workstation switching mechanism 6 includes a first top plate 61 mounted on the rectangular support frame 2. A first switching component and a second switching component 63 are respectively mounted at the front and rear ends of the lower surface of the first top plate 61. The first switching component enables the two drilling mechanisms 4 and two hydraulic lifting mechanisms 5 located in front to move away from each other and towards each other. The second switching component 63 enables the two drilling mechanisms 4 and two hydraulic lifting mechanisms 5 located in the rear to move away from each other and towards each other. The first switching component and the second switching component 63 operate synchronously via a second drive component. Before drilling, the workstation switching mechanism 6 adjusts the spacing between the four drilling mechanisms 4 using the first switching component and the second switching component 63, aligning them with the four corners of the road panel 7 to be replaced.

[0060] Furthermore, as a specific implementation method, refer to Figure 2 and Figure 9 The first switching assembly includes a first double-threaded screw 621 arranged along the width direction of the vehicle body 1 and a plurality of first support guide rods 622. The two ends of the first double-threaded screw 621 are respectively provided with a first thread 623 and a second thread 624. The first thread 623 and the second thread 624 have the same pitch but opposite directions. A second ball bearing nut block 625 is adapted to the first thread 623, and a third ball bearing nut block 626 is adapted to the second thread 624. A drilling mechanism 4 and a hydraulic lifting mechanism 5 located on the front left are connected to the second ball bearing nut block 625, and a drilling mechanism 4 and a hydraulic lifting mechanism 5 located on the front right are connected to the third ball bearing nut block 626. The two ends of the first double-threaded screw 621 are respectively connected to the lower end face of the first top plate 61 through bearings and bearing seats. The second ball bearing nut block 625 and the third ball bearing nut block 626 are provided with first support guide holes adapted to the first support guide rods 622. The rotation of the first double-threaded screw 621 can drive the second ball nut block 625 and the third ball nut block 626 to move closer to or further away from each other, thereby adjusting the distance between the two drilling mechanisms 4 and the distance between the two hydraulic lifting mechanisms 5. It can also move the two hydraulic lifting mechanisms 5 to the position directly above the convex lifting hole 8.

[0061] Furthermore, as a specific implementation method, refer to Figure 9The second switching assembly 63 includes a second double-threaded screw and several second support guide rods arranged along the width direction of the vehicle body 1. The two ends of the second double-threaded screw are respectively provided with a third thread and a fourth thread. The third and fourth threads have the same pitch but opposite directions. A fourth ball bearing nut block is adapted to the third thread, and a fifth ball bearing nut block is adapted to the fourth thread. The drilling mechanism 4 and hydraulic lifting mechanism 5 located on the rear left side are connected to the fourth ball bearing nut block, and the drilling mechanism 4 and hydraulic lifting mechanism 5 located on the rear right side are connected to the fifth ball bearing nut block. The working principle of the second switching assembly 63 is the same as that of the first switching assembly, and they operate synchronously.

[0062] Furthermore, as a specific implementation method, refer to Figure 2 and Figure 9 The second drive assembly includes a transmission rod 641 arranged along the length of the vehicle body 1. The front end of the transmission rod 641 is driven by the middle part of the first double-threaded screw 621 through a first bevel gear pair 642, and the rear end of the transmission rod 641 is driven by the middle part of the second double-threaded screw through a second bevel gear pair 643. A second driven gear 644 is provided in the middle part of the transmission rod 641. A fourth motor 646 is provided in the middle of the lower end face of the first top plate 61. A second driving gear 645 that meshes with the second driven gear 644 is provided on the shaft of the fourth motor 646. The front and rear ends of the transmission rod 641 are connected to the lower end face of the first top plate 61 through bearings and bearing seats, respectively. The operation of the fourth motor 646 can drive the rotation of the second driving gear 645, which in turn drives the rotation of the second driven gear 644, which in turn drives the rotation of the transmission rod 641. Thus, through the first bevel gear pair 642 and the second bevel gear pair 643, the first double-threaded screw 621 and the second double-threaded screw can rotate synchronously at the same angle and the same speed.

[0063] After drilling is completed, the hydraulic jacking mechanism 5 is moved to a position directly above the U-shaped jacking hole 8 by the operation of the workstation switching mechanism 6. The first lifting component 52 moves the jacking cylinder 51 down into the interior of the U-shaped jacking hole 8. After the lower end face of the jacking plate 54 contacts the end face of the roadbed, the jacking rod 53 is inserted into the enlarged part of the U-shaped jacking hole 8 and automatically locked by the hinge structure. The lower end of the piston of the jacking cylinder 51 extends out, pushing the jacking plate 54 against the roadbed. At the same time, the jacking rod 53 applies upward force to separate the road panel 7 to be replaced from the roadbed. Since the four hydraulic jacking mechanisms 5 work synchronously, it ensures that the road panel 7 to be replaced is subjected to uniform force, avoiding local damage. After separation, the operation of the first lifting component 52 causes the lifting cylinder 51 to move upward, thereby causing the road panel 7 to be replaced to move upward along with the lifting cylinder 51, raising the road panel 7 to a certain height and lifting it out of the roadbed. Then, the operation of the first drive component 122 causes the rectangular support frame 2 to move forward, thereby driving the road panel 7 to be replaced to move forward along with the rectangular support frame 2, allowing the road panel 7 to be replaced to be removed from the roadbed. Integrating drilling, lifting, and hoisting, the hydraulic lifting can smoothly separate the road panel from the base layer, realizing the removal of the entire road panel 7 to be replaced, improving construction efficiency while ensuring that the roadbed is not broken, and also facilitating the observation of defects on the roadbed.

[0064] Example 2

[0065] Based on Example 1, and referring to Figure 3 , Figure 10 and Figure 11 An annular restraint ring 55 is coaxially arranged above the lifting plate 54. The annular restraint ring 55 is connected to the upper edge of the lifting plate 54 through several first connecting rods 56. An arc-shaped actuating piece 57 is also provided on the lower end of each lifting rod 53. The lower end of the arc-shaped actuating piece 57 extends away from the lifting cylinder 51. A limit piece 58 is also provided on the lower end of the arc-shaped actuating piece 57. When the lifting cylinder 51 is in the retracted state, the annular restraint ring 55 can restrain each lifting rod 53, making it close to the side of the lifting cylinder 51. When the lifting cylinder 51 moves down to the lower end of the lifting plate 54 and contacts the roadbed, the lifting cylinder 51 performs a preliminary small-distance extension. The cylinder body of the lifting cylinder 51 moves up. When the annular restraint ring 55 contacts the arc-shaped actuating piece 57, it can actuate each arc-shaped actuating piece 57, causing the upper end of each lifting rod 53 to rotate away from the lifting cylinder 51, thereby realizing the unfolding of each lifting rod 53. After unfolding, as the lifting cylinder 51 continues to extend, the upper end of each lifting rod 53 can be engaged in the convex lifting hole 8. As the lifting cylinder 51 continues to extend, the lifting work of the road panel 7 to be replaced begins.

[0066] The lifting plate 54 also has a coaxially arranged annular cavity inside, and a piezoelectric ceramic ring array 59 is evenly distributed around its axial direction within the annular cavity. An integrated piezoelectric ceramic vibrator starts working during the lifting process. The operation of the piezoelectric ceramic ring array 59 can apply high-frequency micro-amplitude vibration during the lifting process. The vibration energy can be transferred to the road panel-subgrade interface, causing the physical and chemical bonding between the cement paste and the base layer to fail quickly, reducing the lifting force required for separation. In addition, the high-frequency vibration forms a micro-air gap on the bottom of the road panel 7 to be replaced, eliminating the negative pressure adsorption effect caused by the humid environment, thus optimizing the separation process between the road panel 7 to be replaced and the subgrade from a physical and mechanical perspective.

[0067] The lifting plate 54 also has a negative pressure chamber 510 inside, and the lower end face of the lifting plate 54 has several negative pressure holes 511 communicating with the negative pressure chamber 510. The upper end of the lifting plate 54 is provided with a negative pressure pipe communicating with the negative pressure chamber 510. A negative pressure pump is provided on the vehicle body 1. The operation of the negative pressure pump can generate negative pressure in the negative pressure chamber 510. When the hydraulic lifting mechanism 5 moves down into the convex lifting hole 8, the negative pressure chamber 510 can suck out the dust in the hole, which is convenient for the hydraulic lifting mechanism 5 to be positioned. The negative pressure pump starts working when the lifting plate 54 enters the convex lifting hole 8 and stops working after the lifting plate 54 contacts the end face of the roadbed.

[0068] Example 3

[0069] Based on Example 1, and referring to Figure 1 , Figure 12 and Figure 13 It also includes a new road panel hoisting system, which includes a hoisting mechanism 91 for hoisting new road panels. The hoisting mechanism 91 is located at the rear end of the rectangular support frame 2 via a second top plate 92. The road panel 7 to be replaced is hoisted and moved forward from the roadbed via the rectangular support frame 2, while the new road panel moves synchronously to the empty position of the roadbed. The hoisting of the new road panel by the new road panel hoisting system can be carried out before drilling or after the road panel 7 to be replaced is removed from the roadbed.

[0070] The hoisting mechanism 91 includes four second lifting components 911 and an angle adjustment component for fine-tuning the angle. The second lifting components 911 are electric hoists. The angle adjustment component includes a second rotating plate 912 located above the second top plate 92 and a fifth motor 913 located at the lower end of the second top plate 92 for driving the second rotating plate 912 to rotate. Arc-shaped openings 914 are respectively provided at the four corners of the second top plate 92. The upper end of the main body of the electric hoist is suspended from the lower end of the second rotating plate 912 through the arc-shaped openings 914. The lower ends of the four second lifting components 911 are respectively connected to the four corners of the new road panel, and the angle adjustment component allows for fine-tuning of the angle of the new road panel. Because vehicle body 1 needs to be placed on a concrete road surface, and the width of the left and right sides of vehicle body 1 is no greater than the width of the concrete road surface, while the width of the new road panel is greater than the width of vehicle body 1, during the initial lifting of the new road panel, the lifting height of the two second lifting components 911 on the left side is greater than the lifting height of the two second lifting components 911 on the right side. This causes the new road panel to tilt as it passes through the interior of vehicle body 1 with the left side higher than the right side. After the new road panel is lifted above the roadbed, the two second lifting components 911 on the left side lower, making the new road panel more horizontal. Then, through the synchronous descent of all four second lifting components 911, and in conjunction with the angle adjustment components, the new road panel is lowered onto the roadbed. This completes the lifting and installation of the new road panel.

[0071] Example 4

[0072] Based on Example 3, and referring to Figure 14 and Figure 15 The rectangular support frame 2 is provided with an intermediate transition plate 10 in the middle between the first top plate 61 and the second top plate 92, and the lower end face of the intermediate transition plate 10 is provided with a roadbed repair system.

[0073] The roadbed repair system includes a six-axis robotic arm 15, with a grouting head at its end. The base of the six-axis robotic arm 15 is fixed to the lower end of a movable seat 16. The upper end of the movable seat 16 is connected to a third drive assembly that allows relative sliding along the width of the rectangular support frame 2. The third drive assembly includes a second rack 17 and several third support guide rods 18 positioned along the width of the vehicle body 1 on the lower surface of the intermediate transition plate 10. The upper end of the movable seat 16 is provided with a third guide slider 19 adapted to the third support guide rods 18 and a third gear 20 meshing with the second rack 17. The lower end of the movable seat 16 is provided with a sixth motor 21 for rotating the third gear 20 around its axis. The operation of the sixth motor 21 drives the rotation of the third gear 20, thereby causing the movable seat 16 to slide along the width of the rectangular support frame 2, and consequently, moving the six-axis robotic arm 15 along the width of the rectangular support frame 2.

[0074] By setting a roadbed repair system in the middle of the rectangular support frame 2, the image acquisition module collects image information of the roadbed, identifies defects on the roadbed, and marks the coordinate area of ​​the defects. Through the operation of the six-axis robotic arm 15 and the third drive component, the defects on the roadbed can be grouted for repair, further improving the replacement effect of cement pavement panels. After the roadbed repair system is installed, the new road panel can be hoisted before the new road panel 7 is drilled. After the vehicle body 1 is positioned, the retractable front outrigger 13 and retractable rear outrigger 14 contact the road surface. Then, through the operation of the first drive component 122, the rectangular support frame 2 moves backward, and the new road panel hoisting system hoists the new road panel located behind the vehicle body 1. After that, through the operation of the first drive component 122, the rectangular support frame 2 moves forward. At this time, the drilling and lifting system 3 is aligned with the road panel 7 to be replaced, and the new road panel is suspended inside the vehicle body 1. After the lifting is completed, through the continued operation of the first drive component 122, the rectangular support frame 2 continues to move forward. At this time, the roadbed repair system starts to work to grout the roadbed defects. While the road panel 7 is being removed from the roadbed, the new road panel moves towards the roadbed. After the roadbed grouting repair is completed, as the new road panel descends, the cement road panel is finally replaced quickly.

[0075] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The embodiments described above are merely illustrative of implementation methods of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A hydraulic jacking system for rapid replacement of broken concrete pavement slabs, characterized in that, include The vehicle body (1) has a rectangular support frame (2) that extends horizontally along its length on the top of the vehicle body (1), and the length of the rectangular support frame (2) is greater than twice the length of the vehicle body (1). The drilling and lifting system (3) includes a drilling mechanism (4) for drilling holes in the road panel (7) to be replaced and a hydraulic lifting mechanism (5) for separating the road panel (7) to be replaced from the roadbed. The drilling mechanism (4) and the hydraulic lifting mechanism (5) are located at the front end of the rectangular support frame (2) through a work station switching mechanism (6). The drilling mechanism (4) includes a drilling head (41) and a drill bit (42). The drill bit (42) drills a convex lifting hole (8) on the road panel (7) to be replaced through the drilling head (41), the vertical displacement component (43), and the circumferential displacement component (44). The hydraulic lifting mechanism (5) includes a lifting cylinder (51) arranged vertically downward. The upper end of the cylinder body of the lifting cylinder (51) is connected to the work station switching mechanism (6) through the first lifting assembly (52). The lower end of the cylinder body of the lifting cylinder (51) is hinged along its axial direction with a plurality of lifting rods (53) for engaging inside the convex lifting hole (8). The lower end of the piston of the lifting cylinder (51) is provided with a lifting plate (54) that contacts the end face of the roadbed.

2. The hydraulic jacking system for quick replacement of broken cement pavement slabs according to claim 1, characterized in that, The vehicle body (1) is rectangular in shape. The vehicle body (1) includes a horizontal chassis (11) and a lateral movement mechanism (12) located directly above the horizontal chassis (11). The four corners at the lower end of the horizontal chassis (11) are respectively provided with steering wheels for walking, turning and lateral movement and hydraulic cylinders for outriggers for stable support. The lateral movement mechanism (12) includes a crossbeam (121) for sliding relative to the two long sides of the rectangular support frame (2) and a first drive assembly (122) for horizontally moving the rectangular support frame (2).

3. The hydraulic jacking system for quick replacement of broken cement pavement slabs according to claim 2, characterized in that, The crossbeam (121) is arranged along the length of the vehicle body (1). The two crossbeams (121) are located at the two ends of the width direction of the vehicle body (1). The two crossbeams (121) are respectively provided with guide support grooves (123) along the length direction on the side surface of the two crossbeams (121) that are close to each other. The first drive assembly (122) is located at the front end of the crossbeam (121). The first drive assembly (122) includes a first motor, a first reducer and a first rack (124) on the outer side of the two long sides of the rectangular support frame (2) provided on each crossbeam (121). The front end of the side surface of the two crossbeams (121) that are far apart from each other is respectively provided with a first opening (125). A first gear (126) is provided on the output shaft of the first reducer. The first gear (126) meshes with the first rack (124) through the first opening (125).

4. The hydraulic jacking system for quick replacement of broken cement pavement slabs according to claim 2, characterized in that, The rectangular support frame (2) is provided with a retractable front support leg (13) and a retractable rear support leg (14) at its front and rear ends respectively. The retractable front support leg (13) includes a front connecting seat (131). The lower end of the front connecting seat (131) is provided with a plurality of guide cylinders (132) along the width direction of the rectangular support frame (2). The lower end of the guide cylinders (132) is adapted to a telescopic rod (133). The lower ends of the plurality of telescopic rods (133) are horizontally connected to a front base (134). The lower end of the front base (134) is provided with a front wheel assembly (135). The lower ends of the plurality of guide cylinders (132) are also connected to a front cylinder seat (136). The front cylinder seat (136) is provided with a plurality of telescopic cylinders (137) arranged vertically downward. The piston part of the telescopic cylinder (137) is connected to the front base (134). The structure of the retractable rear support leg (14) is the same as that of the retractable front support leg (13).

5. The hydraulic jacking system for quick replacement of broken cement pavement slabs according to claim 1, characterized in that, The vertical displacement component (43) includes a first vertical plate (431). A first lead screw (432), a first guide rod (433), and a second motor (434) for rotating the first lead screw (432) are arranged vertically on one side of the first vertical plate (431). A first ball nut block (435) is adapted on the first lead screw (432). A movable box (436) is arranged on the side of the first ball nut block (435) away from the first vertical plate (431). A first guide block (437) adapted to the first guide rod (433) is arranged on the movable box (436). The circumferential displacement component (44) is located inside the movable box (436).

6. The hydraulic jacking system for quick replacement of broken cement pavement slabs according to claim 5, characterized in that, The movable box (436) includes a movable vertical plate for connecting with the first ball nut block (435), and a movable horizontal plate is provided on the upper end of the side of the movable vertical plate away from the first vertical plate (431); the circumferential displacement assembly (44) includes a first rotating plate (441) horizontally disposed below the movable horizontal plate and a third motor (442) disposed above the movable horizontal plate for driving the first rotating plate (441) to rotate around an axis, and a first hydraulic cylinder seat (443) and a second hydraulic cylinder seat (442) are symmetrically disposed at both ends of the lower end face of the first rotating plate (441) along its diameter. A cylinder seat (444) is provided. A first displacement cylinder (445) is horizontally arranged on the first cylinder seat (443). A second displacement cylinder (446) is horizontally arranged on the second cylinder seat (444). The piston parts of the first displacement cylinder (445) and the second displacement cylinder (446) are arranged opposite to each other and connected to a head seat (447). The drilling head (41) is vertically downward through the connection of the head seat (447). The upper end of the drill bit (42) is connected to the rotating shaft of the drilling head (41) through a clamp.

7. The hydraulic jacking system for quick replacement of broken cement pavement slabs according to claim 1, characterized in that, The first lifting component (52) is one of an electric hoist or a winch.

8. A hydraulic jacking system for quick replacement of broken cement pavement slabs according to any one of claims 1-7, characterized in that, The drilling mechanism (4) and the hydraulic lifting mechanism (5) are each provided in four and are arranged in a rectangular shape, which can drill holes and lift the road panel (7) to be replaced at the four corners.

9. The hydraulic jacking system for quick replacement of broken cement pavement slabs according to claim 8, characterized in that, The workstation switching mechanism (6) includes a first top plate (61) mounted on the rectangular support frame (2). The front and rear ends of the lower end face of the first top plate (61) are respectively provided with a first switching component and a second switching component (63). The first switching component enables the two drilling mechanisms (4) and the two hydraulic lifting mechanisms (5) located in front to move away from each other and move closer to each other. The second switching component (63) enables the two drilling mechanisms (4) and the two hydraulic lifting mechanisms (5) located in the rear to move away from each other and move closer to each other. The first switching component and the second switching component (63) work synchronously through the second drive component.

10. The hydraulic jacking system for quick replacement of broken cement pavement slabs according to claim 9, characterized in that, The first switching assembly includes a first double-threaded screw (621) and a plurality of first support guide rods (622) arranged along the width direction of the vehicle body (1). The two ends of the first double-threaded screw (621) are respectively provided with a first thread (623) and a second thread (624). The first thread (623) and the second thread (624) have the same pitch and opposite directions. A second ball nut block (625) is adapted on the first thread (623), and a third ball nut block (626) is adapted on the second thread (624). The drilling mechanism (4) and the hydraulic lifting mechanism (5) located on the front left are connected to the second ball nut block (625), and the drilling mechanism (4) and the hydraulic lifting mechanism (5) located on the front right are connected to the third ball nut block (626). The structure of the second switching assembly (63) is the same as that of the first switching assembly.

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