A concrete pavement joint cutting device for highway bridge construction

Abstract

The application discloses a concrete pavement joint cutting device for highway bridge construction, which comprises a driving vehicle, a generator is arranged on the upper end of the driving vehicle, the driving vehicle is provided with a sliding frame, a driving mechanism is arranged on the sliding frame, a let-in supporting seat is arranged in the driving mechanism, a power assembly is arranged on the upper end of the let-in supporting seat, a cutting saw blade is arranged on the power assembly, and an adjusting mechanism is arranged on the driving mechanism. The application can realize self-walking cutting, can automatically control let-in cutting, does not need to slow down the cutting speed, or a worker manually identifies and cuts hard objects such as steel bars, the cutting speed is accelerated, and the automatic depth cutting and repeated cutting are realized, the worker does not need to manually repeatedly pull the equipment to realize repeated cutting, and the operation is relatively simple. The driving mechanism can sense the resistance of the cutting saw blade when cutting hard objects such as steel bars, can quickly respond, and can be linked with the moving seat plate to change the cutting mode.

Description

Technical Field

[0001] This invention relates to the field of engineering equipment technology, specifically to a concrete pavement cutting device for highway bridge construction. Background Technology

[0002] During highway bridge construction, in certain situations (such as leveling the edges of cement pavements), it is necessary to cut joints in the solidified concrete pavement. Therefore, concrete pavement cutting devices are indispensable tools. Currently, to reduce the workload of workers, most concrete pavement cutting devices are self-propelled. However, for bridge decks containing internal reinforcing steel, due to varying hardness in different areas, self-propelled cutting devices require slowing down their movement or manual pushing by workers to identify and cut the reinforcing steel, significantly reducing cutting efficiency. Furthermore, when deep cutting is required in cement pavements, automatic cutting is difficult to achieve, necessitating manual adjustment of the saw blade's cutting depth and repeated pulling of the concrete pavement cutting device for repeated cutting, making the operation cumbersome. Therefore, to address these problems, a concrete pavement cutting device for highway bridge construction is proposed. Summary of the Invention

[0003] The purpose of this invention is to provide a concrete pavement cutting device for highway bridge construction, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a concrete pavement joint cutting device for highway bridge construction, comprising a drive vehicle, a generator mounted on the upper end of the drive vehicle, a sliding frame mounted on the lower side of the drive vehicle below the generator, a drive mechanism for moving the sliding frame mounted on the sliding frame, a clearance support seat linked to the drive mechanism mounted inside the drive mechanism, a power component slidably connected to the drive mechanism mounted on the upper end of the clearance support seat, a cutting saw blade mounted on the power component, an adjustment mechanism for moving the clearance support seat mounted on the drive mechanism, and an electrical control box electrically connected to the generator mounted on the drive vehicle, the electrical control box being electrically connected to the drive mechanism, the clearance support seat, the power component, and the adjustment mechanism.

[0005] Preferably, the drive vehicle includes a frame, which is divided into upper and lower layers. Support plates are fixedly connected to both the upper and lower layers of the frame. Slide rails are fixedly connected to both ends of the lower support plate in the longitudinal direction. A toothed groove is provided on the outer side wall of one slide rail. A shaft is rotatably connected to both ends of the bottom surface of the frame in the transverse direction. Rollers are fixedly connected to both ends of the shaft. A self-locking motor for driving one of the shafts to rotate is fixedly connected to the bottom of the frame.

[0006] Preferably, the sliding frame includes a base plate, with its two longitudinal ends slidably connected to two slide rails. The upper end of the base plate has two longitudinally distributed support columns integrally formed, and an installation groove is formed between the two support columns. Limiting slide grooves are provided on the support columns. A sleeve interface is provided on one side of the toothed groove on the base plate. A toothed plate that meshes with the toothed groove is sleeved in the sleeve interface. A lead screw motor is fixedly connected to the base plate at the sleeve interface, and the output end of the lead screw motor is screwed to the toothed plate.

[0007] Preferably, the driving mechanism includes a limiting mounting shell and a first servo motor. The limiting mounting shell is sleeved in the mounting groove and fixedly connected to the base plate. Two limiting slide rails parallel to the slide rails are integrally formed on the inner bottom surface of the limiting mounting shell. Two moving blocks are slidably connected to the two limiting slide rails. A support spring is fixedly connected between the two moving blocks. Limiting slots with openings facing the two ends of the limiting slide rails are provided on the two moving blocks. Threaded sleeves penetrating the limiting mounting shell are inserted into the limiting slots, and the two threaded sleeves are screwed together. The system includes a drive screw with rotating seats rotatably connected to both ends. The two rotating seats are fixedly connected to the two ends of the vehicle frame laterally. One end of the drive screw is fixedly connected to the output end of a first servo motor, which is fixedly connected to the vehicle frame. An upwardly extending linkage rod is fixedly connected to the moving block. Both sides of the limiting mounting shell have clearance grooves that are opposite to the limiting slide grooves. Limiting slides are provided at both ends of the limiting mounting shell laterally. A first pressure sensor is fixedly connected to the opposite surface of the rotating seat and the base plate.

[0008] Preferably, the clearance support includes a movable seat plate, which is sleeved within the limiting mounting shell. The two ends of the movable seat plate extend laterally through two limiting slides to the outside of the limiting mounting shell. Each of the four corners of the movable seat plate inside the limiting mounting shell has a downward-facing socket hole. A top plate is fitted to the upper end of the movable seat plate, which is sleeved within the limiting mounting shell. Connecting rods are fixedly connected to the four corners of the bottom surface of the top plate. Four connecting rods penetrate the upper surface of the movable seat plate and are inserted into four socket holes. A compression spring is sleeved on the outer wall of each connecting rod within the socket hole. A compression plate that compresses against the compression spring is fixedly connected to the lower end of each connecting rod. Both ends of the movable seat plate inside the limiting mounting shell have longitudinally penetrating strip-shaped clearance holes perpendicular to the movable seat plate. The movable seat plate has insertion holes at both ends in the horizontal direction. A linkage plate is inserted into the insertion holes. At the ends of the linkage plate located in the insertion holes, the two ends in the vertical direction are fixedly connected to a pull rod. The pull rod passes through a strip-shaped clearance hole and extends to the outside of the movable seat plate. The outer end of the pull rod is rotatably connected to a linkage arm. The upper end of the linkage arm is rotatably connected to the top plate. A buffer groove passes through the upper end of the linkage plate near the outer end. Both ends of the upper surface of the movable seat plate and the top plate have mating buffer grooves. The buffer grooves and mating buffer grooves are sleeved with the linkage rod. A second pressure sensor that presses against the top plate is fixedly connected to the upper end of the movable seat plate. An extension rod is fixedly connected to the upper end of the movable seat plate. The extension rod passes through the top plate and extends to the upper end of the top plate. A third pressure sensor that mates with the top plate is fixedly connected to the upper end of the extension rod.

[0009] Preferably, the power assembly includes a support frame and a second servo motor. The support frame is slidably connected to the support column through two limiting grooves. An extension arm extending downward from the outer side of the frame is fixedly connected to one end of the support frame and is slidably connected to the base plate. The other side of the support frame is fixedly connected to the second servo motor. A transmission shaft is rotatably connected inside the support frame and is fixedly connected to the output end of the second servo motor. A first pulley is fixedly connected to one side of the extension arm. A linkage belt is sleeved on the outer wall of the first pulley. The first pulley is linked to a second pulley via the linkage belt. The second pulley is rotatably connected to the lower side of the extension arm. The central shaft of the second pulley is fixedly connected to a cutting saw blade. A protective cover is sleeved on the outer wall of the second pulley and is fixedly connected to the extension arm.

[0010] Preferably, the adjustment mechanism includes two threaded rods and a third servo motor. The upper and lower ends of each threaded rod are fixedly connected to a connecting seat. The two threaded rods are respectively fixedly connected to the two ends of the limiting mounting shell laterally via the connecting seats. A threaded tube is threaded to the outer wall of each threaded rod, and the threaded tube is rotatably connected to the movable base plate. A drive pulley is fixedly connected to the lower end of the outer wall of the threaded tube. A drive belt is sleeved between the two drive pulleys. A turbine is fixedly connected to the outer wall of one of the threaded tubes within the movable base plate. The third servo motor is fixedly connected to the movable base plate, and a worm gear meshing with the turbine is fixedly connected to the output end of the third servo motor.

[0011] Preferably, the electrical control box includes an electrical control box shell, inside which a water tank, a storage battery, and a PLC controller are fixedly connected. The PLC controller is electrically connected to a self-locking motor, a first servo motor, a second servo motor, a third servo motor, a first pressure sensor, a second pressure sensor, a third pressure sensor, and a lead screw motor. The water tank is fixedly connected to a protective cover via a water pipe with a valve. The PLC controller is electrically connected to the storage battery, and the storage battery is electrically connected to a generator.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This invention can perform self-propelled cutting, and when cutting cement pavement containing hard objects such as steel bars, it can automatically control the clearance cutting, without slowing down the cutting speed or requiring workers to manually identify and cut hard objects such as steel bars, thus speeding up the cutting speed. It can also automatically perform repeated deep cutting without requiring workers to manually pull the equipment repeatedly for repeated cutting, making the operation relatively simple.

[0014] 2. The drive mechanism can sense the resistance encountered by the cutting saw blade when cutting hard materials such as steel bars, react quickly, and link with the moving base plate to change the cutting mode.

[0015] 3. The clearance support can pull the cutting saw blade upwards and press it downwards to cut hard objects such as steel bars, avoiding damage to the saw blade due to excessive pushing force.

[0016] 4. Furthermore, the adjustment mechanism can control the cutting depth to achieve the function of layered cutting. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram showing the disassembly and dissection of a portion of the structure of the present invention;

[0019] Figure 3 This is a partial structural disassembly diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the electrical control box structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the drive vehicle structure according to the first embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the sliding frame structure according to the first embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the drive mechanism structure according to the second embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the clearance support structure according to the third embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the power component structure according to the fourth embodiment of the present invention;

[0026] Figure 10 This is a schematic diagram of the adjustment mechanism structure according to the fifth embodiment of the present invention;

[0027] In the diagram: 1. Drive vehicle; 11. Frame; 12. Support plate; 13. Slide rail; 14. Shaft; 15. Roller; 17. Gear groove; 16. Self-locking motor; 2. Generator; 3. Sliding frame; 31. Base plate; 32. Support column; 33. Mounting slot; 34. Limiting slide groove; 35. Socket; 36. Gear plate; 37. Lead screw motor; 4. Drive mechanism; 401. Limiting mounting shell; 402. First servo motor; 403. Limiting slide rail; 404. Moving block; 405. Support spring; 406. Limiting slot; 407. Drive screw; 408. Rotating seat; 409. Linkage rod; 410. Clearance groove; 411. Limiting slide; 412. First pressure sensor; 413. Threaded sleeve; 5. Clearance support seat; 501. Moving seat plate; 502. Socket hole; 503. Top plate; 504. Connecting rod; 505. Compression spring 506. Extrusion plate; 507. Strip-shaped clearance hole; 508. Insertion hole; 509. Linkage plate; 510. Pull rod; 511. Linkage arm; 512. Buffer groove; 513. Matching buffer groove; 514. Second pressure sensor; 515. Extension rod; 516. Third pressure sensor; 6. Power assembly; 61. Support frame; 62. Second servo motor; 63. Extended arm; 64. Drive shaft; 65. First pulley; 66. Linkage belt; 67. Second pulley; 68. Protective cover; 7. Cutting saw blade; 8. Adjustment mechanism; 81. Threaded rod; 82. Third servo motor; 83. Connecting seat; 84. Threaded pipe; 85. Drive pulley; 86. Drive belt; 87. Turbine; 88. Worm gear; 9. Electrical control box; 91. Electrical control box housing; 92. Water tank; 93. Battery; 94. PLC controller; 95. Control panel. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1:

[0030] Please see Figure 1-6 This invention provides a technical solution: a concrete pavement cutting device for highway bridge construction, comprising a drive vehicle 1, a generator 2 mounted on the upper end of the drive vehicle 1, a sliding frame 3 mounted on the lower side of the drive vehicle 1 below the generator 2, a drive mechanism 4 mounted on the sliding frame 3 for moving the sliding frame 3, a clearance support 5 mounted inside the drive mechanism 4 and linked to the drive mechanism 4, a power component 6 slidably connected to the drive mechanism 4 mounted on the upper end of the clearance support 5, a cutting saw blade 7 mounted on the power component 6, an adjustment mechanism 8 mounted on the drive mechanism 4 for moving the clearance support 5, and an electrical control box 9 electrically connected to the generator 2 mounted on the drive vehicle 1. The electrical control box 9 is electrically connected to the drive mechanism 4, the clearance support 5, the power component 6, and the adjustment mechanism 8.

[0031] Generator 2 uses a modern gasoline generator to continuously supply power to its electrical control box 9.

[0032] In use, the drive vehicle 1 is pushed to the location of the cement road surface to be cut, and the cutting saw blade 7 is aligned with the cutting position. At this time, the generator 2 is started to increase the continuous operating time of the device. The control box 9 controls the adjustment mechanism 8 to lower the clearance support 5 and the power component 6, bringing the cutting saw blade 7 into contact with the cutting position. Simultaneously, the control box 9 sets the cutting depth and the number of cuts. The control box 9 then starts the entire device, and the power component 6 drives the cutting saw blade 7 to rotate. The sliding frame 3, driven by the drive mechanism 4, begins to move the power component 6 laterally on the drive vehicle 1. The power component 6 drives the cutting saw blade 7 to rotate, and the adjustment mechanism 8 lowers the clearance support 5 and the power component 6, beginning the cutting of the cement road surface. During the cutting process, if hard materials such as steel bars are encountered... When the object is being cut, the drive mechanism 4 encounters resistance and begins to drive the clearance support 5 in conjunction. The sliding frame 3 self-locks, and the clearance support 5 drives the power component 6 to move upward, moving the cutting saw blade 7 upward from the kerf. After moving to the set height, the sliding frame 3 releases its self-lock, the drive mechanism 4 stops working, and the sliding frame 3, under the movement of the drive mechanism 4 returning to its original state after stopping, moves the sliding frame 3 and the power component 6 forward in its cutting direction, so that the lowest point of the cutting saw blade 7 roughly aligns vertically with the hard object such as the rebar. At this time, the clearance support 5 automatically returns to its initial state and pulls the power component 6 and the cutting saw blade 7 downward, performing vertical compression cutting on the hard object. After the clearance support 5 completely returns to its original position, the hard object such as the rebar is cut off, and the drive mechanism 4 restarts to perform the above cutting operation.

[0033] During an odd number of repeated cuts, as shown in the figure, the cutting saw blade 7 will stop on the left side of the frame 11 when the cut is completed. When the drive vehicle 1 moves to a self-propelled position, the drive mechanism 4 needs to be started by the control box 9 to pull the sliding frame 3 to move to the right, and the drive vehicle 1 starts to move to the left. When the sliding frame 3 moves relative to the drive vehicle 1, the position of the cutting saw blade 7 and the cement road surface must not change, and the forward movement cut in the cutting direction is carried out.

[0034] During an even number of repeated cuts, as shown in the figure, the cutting saw blade will stop on the right side of the drive vehicle 1 after the cut is completed. Thus, the drive vehicle 1 can directly drive the sliding frame 3 and the cutting saw blade 7 to move in the cutting direction for mobile cutting.

[0035] Therefore, this invention can perform self-propelled cutting, and when cutting cement pavement containing hard objects such as steel bars, it can automatically control the clearance cutting, without slowing down the cutting speed or requiring workers to manually identify and cut hard objects such as steel bars, thus speeding up the cutting speed. It can also automatically perform repeated deep cutting without requiring workers to manually pull the equipment repeatedly for repeated cutting, making the operation relatively simple.

[0036] Specifically, the drive vehicle 1 includes a frame 11, which is divided into upper and lower layers. Support plates 12 are fixedly connected to both the upper and lower layers of the frame 11. Slide rails 13 are fixedly connected to both ends of the lower support plate 12 in the longitudinal direction. A toothed groove 17 is provided on the outer side wall of one slide rail 13. A shaft 14 is rotatably connected to both ends of the bottom surface of the frame 11 in the transverse direction. Rollers 15 are fixedly connected to both ends of the shaft 14. A self-locking motor 16 that drives one of the shafts 14 to rotate is fixedly connected to the bottom of the frame 11.

[0037] The drive vehicle 1 is driven to move by the self-locking motor 16. When it is cutting, the self-locking motor 16 is controlled by the electrical control box 9 to lock itself and prevent the drive vehicle 1 from moving, thus preventing the drive vehicle 1 from moving during the cutting process.

[0038] Specifically, the sliding frame 3 includes a base plate 31, with its two ends slidably connected to two slide rails 13. The upper end of the base plate 31 has two longitudinally distributed support columns 32 integrally formed, and an installation groove 33 is formed between the two support columns 32. A limit slide groove 34 is provided on the support column 32. A sleeve interface 35 is provided on one side of the toothed groove 17 on the base plate 31. A toothed plate 36 that meshes with the toothed groove 17 is sleeved in the sleeve interface 35. A lead screw motor 37 is fixedly connected to the base plate 31 at the sleeve interface 35. The output end of the lead screw motor 37 is screwed to the toothed plate 36.

[0039] During the linkage between the drive mechanism 4 and the clearance support 5, the sliding frame 3 is activated by the starter screw motor 37, which moves the toothed plate 36 to engage with the toothed groove 17, locking the sliding frame 3 in place. This coordinates the linkage between the drive mechanism 4 and the clearance support 5.

[0040] Specifically, the electrical control box 9 includes an electrical control box housing 91, inside which a water tank 92, a storage battery 93, a PLC controller 94, and a control panel 95 are fixedly connected. The PLC controller 94 is electrically connected to the control panel 95, the self-locking motor 16, and the lead screw motor 37. The PLC controller 94 is electrically connected to the storage battery 93, and the storage battery 93 is electrically connected to the generator 2.

[0041] Example 2:

[0042] A concrete pavement cutting device for highway bridge construction, which has the same features as Embodiment 1, except that: Figure 1-4 and Figure 7 As shown

[0043] Specifically, the drive mechanism 4 includes a limiting mounting shell 401 and a first servo motor 402. The limiting mounting shell 401 is sleeved in the mounting groove 33 and fixedly connected to the base plate 31. The inner bottom surface of the limiting mounting shell 401 has two limiting slide rails 403 integrally formed, which are parallel to the slide rails 13. Two moving blocks 404 are slidably connected to the two limiting slide rails 403. A support spring 405 is fixedly connected between the two moving blocks 404. The two moving blocks 404 have limiting slots 406 with openings facing the two ends of the limiting slide rails 403 respectively. A threaded sleeve 413 that penetrates the limiting mounting shell 401 is inserted into the limiting slot 406. The two threaded sleeves 413 are fixedly connected between the two threaded sleeves 405. A drive screw 407 is screwed in, and two ends of the drive screw 407 are rotatably connected to rotating seats 408. The two rotating seats 408 are respectively fixedly connected to the two ends of the frame 11 in the lateral direction. One end of the drive screw 407 is fixedly connected to the output end of the first servo motor 402. The first servo motor 402 is fixedly connected to the frame 11. An upwardly extending linkage rod 409 is fixedly connected to the moving block 404. Both sides of the limiting mounting shell 401 in the longitudinal direction have clearance grooves 410, which are opposite to the limiting slide groove 34. Limiting slides 411 are opened at both ends of the limiting mounting shell 401 in the lateral direction. A first pressure sensor 412 is fixedly connected to the opposite surface of the rotating seat 408 and the base plate 31.

[0044] The first servo motor 402 drives the drive screw 407 to rotate. The drive screw 407 is screwed together with the threaded sleeve 413. The two threaded sleeves 413 are respectively inserted into the two moving blocks 404. A support spring 405 is installed between the two moving blocks 404, which in turn drives the sliding frame 3 to move. When the cutting saw blade 7 is obstructed, the resistance is applied to the moving sliding frame 3. During the rotation of the drive screw 407, the threaded sleeve 413 will still move in the cutting direction. The threaded sleeve 413 on the front side in the cutting direction will move out of the limit slot 406, and the threaded sleeve 413 on the rear side in the cutting direction will squeeze the moving block 404 it is assembled with to move in the cutting direction. This will drive the linkage rod 409 above the moving block 404 to move, driving the clearance support seat 5 to move. Thus, the drive mechanism 4 can sense the resistance of the cutting saw blade 7 when cutting hard objects such as steel bars, react quickly, and link with the moving seat plate 501 to change the cutting mode.

[0045] The elastic force of the supporting spring 405 must be greater than the resistance of actually cutting a hard cement road surface without any material.

[0046] Specifically, the electrical control box 9 includes an electrical control box housing 91, inside which a water tank 92, a storage battery 93, a PLC controller 94, and a control panel 95 are fixedly connected. The PLC controller 94 is electrically connected to the first servo motor 402 and the first pressure sensor 412, and is electrically connected to the storage battery 93. The storage battery 93 is electrically connected to the generator 2.

[0047] Example 3:

[0048] A concrete pavement cutting device for highway bridge construction, which is otherwise the same as that in Embodiment 2, except that: Figure 1-4 and Figure 8 As shown

[0049] Specifically, the clearance support 5 includes a movable seat plate 501, which is fitted inside the limiting mounting shell 401. The two ends of the movable seat plate 501 extend laterally through two limiting slide rails 411 to the outside of the limiting mounting shell 401. The movable seat plate 501 has downward-facing socket holes 502 at each of its four corners inside the limiting mounting shell 401. A top plate 503 is attached to the upper end of the movable seat plate 501 and is fitted inside the limiting mounting shell 401. The bottom surface of the top plate 503 has... Four connecting rods 504 are fixedly connected, passing through the upper surface of the movable base plate 501 and respectively inserted into four sleeve holes 502. A compression spring 505 located in the sleeve hole 502 is sleeved on the outer wall of the connecting rod 504. A compression plate 506 that compresses against the compression spring 505 is fixedly connected to the lower end of the connecting rod 504. Both ends of the movable base plate 501 located in the limiting mounting shell 401 have longitudinally penetrating strip-shaped clearance holes 507 perpendicular to the movable base plate 501. Both ends of the movable base plate 501 are opened laterally. An insertion hole 508 is provided, into which a linkage plate 509 is inserted. Both ends of the linkage plate 509 located within the insertion hole 508 are fixedly connected to a pull rod 510. The pull rod 510 passes through a strip-shaped clearance hole 507 and extends to the outside of the movable seat plate 501. A linkage arm 511 is rotatably connected to the outer end of the pull rod 510. The upper end of the linkage arm 511 is rotatably connected to the top plate 503. A buffer groove 512 passes through the upper end of the linkage plate 509 near its outer end. The movable seat plate 501 and... Both ends of the upper surface of the top plate 503 are provided with mating buffer grooves 513. Both the buffer grooves 512 and the mating buffer grooves 513 are sleeved with the linkage rod 409. The upper end of the movable seat plate 501 is fixedly connected with a second pressure sensor 514 that presses against the top plate 503. The upper end of the movable seat plate 501 is fixedly connected with an extension rod 515. The extension rod 515 passes through the top plate 503 and extends to the upper end of the top plate 503. The upper end of the extension rod 515 is fixedly connected with a third pressure sensor 516 that mates with the top plate 503.

[0050] When the linkage rod 409 moves, it pushes the linkage plate 509 towards its power assembly 6. As the linkage plate 509 moves, it drives the lower end of its linkage arm 511 to move via the pull rod 510. When the lower end of the linkage arm 511 moves, the tilt angle changes, causing the top plate 503 to move upwards, which in turn causes the power assembly 6 and the cutting saw blade 7 to move upwards. When the top plate 503 moves upwards, the second pressure sensor 514 loses pressure and transmits a signal to the PLC controller 94. The controller 94 will start the lead screw motor 37, causing its sliding frame 3 to self-lock. As the top plate 503 continues to move upward, it will press against the third pressure sensor 516 and transmit the signal to the PLC controller 94. The PLC controller 94 will control the lead screw motor 37 to rotate in the opposite direction, causing its sliding frame 3 to self-lock and open. At the same time, it will control its first servo motor 402 to stop working, stopping its drive mechanism 4. At this time, the compressed support spring 405 will use its own elasticity to press the two moving blocks 404 back to their original position. In the process of the two moving blocks 404 returning to their original state, since the positions of the two threaded sleeves 413 do not change, the sliding frame 3 will move in the cutting direction. Since the linkage rod 409 is sleeved in the buffer groove 512, after the linkage plate 509 is fully inserted into the insertion hole 508, the buffer groove 512 and the mating buffer groove 513 are completely opposite each other. Therefore, the linkage rod 409 will not pull the linkage plate 509 when it moves outward. After the sliding frame 3 drives the saw blade to move forward in the cutting direction, the top plate 503 will move downward by the elastic force of the compression spring 505, thereby driving the power component 6 and the saw blade to move downward and start cutting the steel bars and other hard objects. After the top plate 503 returns to its original state, the steel bars and other hard objects will be cut. The top plate 503 will squeeze the second pressure sensor 514 and transmit the signal to the PLC controller 94. The PLC controller 94 will start the first servo motor 402 again, and the drive mechanism 4 will drive the sliding frame 3 to move again to perform the cutting operation.

[0051] This allows the support base 5 to pull the cutting saw blade 7 upwards and press it downwards to cut hard objects such as steel bars, thus avoiding damage to the cutting saw blade 7 due to excessive pushing force.

[0052] Specifically, the electrical control box 9 includes an electrical control box housing 91, inside which a water tank 92, a storage battery 93, a PLC controller 94, and a control panel 95 are fixedly connected. The PLC controller 94 is electrically connected to the control panel 95, the second pressure sensor 514, and the third pressure sensor 516. The PLC controller 94 is electrically connected to the storage battery 93, and the storage battery 93 is electrically connected to the generator 2.

[0053] Example 4:

[0054] A concrete pavement cutting device for highway bridge construction, which has the same features as Embodiment 3, except that: Figure 1-4 and Figure 9 As shown

[0055] Specifically, the power assembly 6 includes a support frame 61 and a second servo motor 62. The support frame 61 is slidably connected to the support column 32 through two limiting grooves 34. An extension arm 63 extending downward from the outside of the frame 11 is fixedly connected to one end of the support frame 61, and the extension arm 63 is slidably connected to the base plate 31. The other side of the support frame 61 is fixedly connected to the second servo motor 62. A transmission shaft 64 is rotatably connected inside the support frame 61. The transmission shaft 64 is fixedly connected to the output end of the second servo motor 62. A first pulley 65 is fixedly connected to one side of the extension arm 63. A linkage belt 66 is sleeved on the outer wall of the first pulley 65. The first pulley 65 is linked to a second pulley 67 through the linkage belt 66. The second pulley 67 is rotatably connected to the lower side of the extension arm 63. The central shaft of the second pulley 67 is fixedly connected to the cutting saw blade 7. A protective cover 68 is sleeved on the outer wall of the second pulley 67. The protective cover 68 is fixedly connected to the extension arm 63.

[0056] The second servo motor 62 drives the transmission shaft 64 to rotate, which in turn drives the first pulley 65 to rotate. The first pulley 65 drives the second pulley 67 to rotate via the linkage belt 66, and the second pulley 67 drives the cutting saw blade 7 to rotate, thereby realizing its cutting function.

[0057] Specifically, the electrical control box 9 includes an electrical control box housing 91, inside which a water tank 92, a storage battery 93, a PLC controller 94, and a control panel 95 are fixedly connected. The PLC controller 94 is electrically connected to the control panel 95 and the second servo motor 62. The water tank 92 is fixedly connected to a protective cover 68 through a water pipe with a valve. The PLC controller 94 is electrically connected to the storage battery 93, and the storage battery 93 is electrically connected to the generator 2.

[0058] Example 5:

[0059] A concrete pavement cutting device for highway bridge construction, which is otherwise the same as that in Embodiment 4, except that: Figure 1-4 and Figure 10 As shown

[0060] Specifically, the adjustment mechanism 8 includes two threaded rods 81 and a third servo motor 82. The upper and lower ends of the threaded rods 81 are fixedly connected to connecting seats 83. The two threaded rods 81 are respectively fixedly connected to the two ends of the limiting mounting shell 401 in the lateral direction through the connecting seats 83. The outer wall of the threaded rods 81 is screwed with a threaded tube 84, which is rotatably connected to the movable seat plate 501. The lower end of the outer wall of the threaded tube 84 is fixedly connected to a drive pulley 85. A drive belt 86 is sleeved between the two drive pulleys 85. The outer wall of one of the threaded tubes 84 is located inside the movable seat plate 501 and is fixedly connected to a turbine 87. The third servo motor 82 is fixedly connected to the movable seat plate 501, and the output end of the third servo motor 82 is fixedly connected to a worm gear 88 that meshes with the turbine 87.

[0061] The third servo motor 82 is controlled by the PLC controller 94. When the sliding frame 3 presses the first pressure sensor 412, the first pressure sensor 412 will transmit a signal to the PLC controller 94. The PLC controller 94 will control the first servo motor 402 to reverse. During this process, the PLC controller 94 will control the third servo motor 82 to start. The third servo motor 82 will drive the two threaded rods 81, which are linked by the drive pulley 85 and the drive belt 86, to rotate. This will cause the support seat 5 and the power component 6 to move down a set distance (the set distance is set by the control panel 95). This is used to perform repeated deep cutting operations. After repeated cutting, the PLC controller 94 will control the third servo motor 82 to rotate, pulling the support seat 5 and the power component 6 to the top of the sliding frame 3.

[0062] Furthermore, the adjustment mechanism 8 can control the cutting depth and achieve the function of layered cutting.

[0063] Specifically, the electrical control box 9 includes an electrical control box housing 91, inside which a water tank 92, a storage battery 93, a PLC controller 94, and a control panel 95 are fixedly connected. The PLC controller 94 is electrically connected to the control panel 95 and the third servo motor 82. The PLC controller 94 is electrically connected to the storage battery 93, and the storage battery 93 is electrically connected to the generator 2.

[0064] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concrete pavement cutting device for highway bridge construction, comprising a drive vehicle (1), characterized in that: The upper end of the drive vehicle (1) is equipped with a generator (2), and the drive vehicle (1) is equipped with a sliding frame (3) located below the generator (2). The sliding frame (3) is equipped with a drive mechanism (4) that drives the sliding frame (3) to move. The drive mechanism (4) is equipped with a clearance support seat (5) that is linked to the drive mechanism (4). The upper end of the clearance support seat (5) is equipped with a power component (6) that is slidably connected to the drive mechanism (4). The power component (6) is equipped with a cutting saw blade (7). The drive mechanism (4) is equipped with an adjustment mechanism (8) that drives the clearance support seat (5) to move. The drive vehicle (1) is equipped with an electrical control box (9) that is electrically connected to the generator (2). The electrical control box (9) is electrically connected to the drive mechanism (4), the clearance support seat (5), the power component (6), and the adjustment mechanism (8). The drive vehicle (1) includes a frame (11), which is divided into upper and lower layers. The upper and lower layers of the frame (11) are fixedly connected to support plates (12). The two ends of the support plate (12) located on the lower side are fixedly connected to slide rails (13). The outer side wall of one side of the slide rail (13) is provided with a toothed groove (17). The two ends of the bottom surface of the frame (11) are rotatably connected to shafts (14). The two ends of the shafts (14) are fixedly connected to rollers (15). The bottom of the frame (11) is fixedly connected to a self-locking motor (16) that drives one of the shafts (14) to rotate. The sliding frame (3) includes a base plate (31), the two ends of the base plate (31) are slidably connected to two slide rails (13) respectively. The upper end of the base plate (31) is integrally formed with two longitudinally distributed support columns (32), and an installation groove (33) is formed between the two support columns (32). A limit slide groove (34) is opened on the support column (32). A sleeve interface (35) is opened on one side of the tooth groove (17) of the base plate (31). A toothed plate (36) that meshes with the tooth groove (17) is sleeved in the sleeve interface (35). A lead screw motor (37) is fixedly connected to the base plate (31) at the sleeve interface (35). The output end of the lead screw motor (37) is screwed to the toothed plate (36). The drive mechanism (4) includes a limiting mounting shell (401) and a first servo motor (402). The limiting mounting shell (401) is sleeved in the mounting groove (33) and fixedly connected to the base plate (31). The inner bottom surface of the limiting mounting shell (401) is integrally formed with two limiting slide rails (403) parallel to the slide rail (13). Two moving blocks (404) are slidably connected on the two limiting slide rails (403). A support spring (405) is fixedly connected between the two moving blocks (404). The two moving blocks (404) are provided with limiting slots (406) with openings facing the two ends of the limiting slide rails (403). A threaded sleeve (413) penetrating the limiting mounting shell (401) is inserted into the limiting slot (406). A drive motor is screwed between the two threaded sleeves (413). The drive screw (407) has rotating seats (408) rotatably connected to both ends of the drive screw (407). The two rotating seats (408) are respectively fixedly connected to the two ends of the frame (11) in the lateral direction. One end of the drive screw (407) is fixedly connected to the output end of the first servo motor (402). The first servo motor (402) is fixedly connected to the frame (11). An upwardly extending linkage rod (409) is fixedly connected to the moving block (404). Both sides of the limiting mounting shell (401) in the longitudinal direction have clearance grooves (410). The clearance grooves (410) are opposite to the limiting slide grooves (34). Both ends of the limiting mounting shell (401) in the lateral direction have limiting slides (411). The rotating seat (408) and the opposite surface of the base plate (31) are fixedly connected to the first pressure sensor (412). The clearance support (5) includes a movable seat plate (501), which is sleeved inside the limiting mounting shell (401). The two ends of the movable seat plate (501) extend laterally through two limiting slides (411) to the outside of the limiting mounting shell (401). The movable seat plate (501) has downward-facing sleeve holes (502) at each of its four corners inside the limiting mounting shell (401). A top plate (503) is attached to the upper end of the movable seat plate (501), and the top plate (503) is sleeved inside the limiting mounting shell (401). The bottom of the top plate (503)... Connecting rods (504) are fixedly connected at each of the four corners of the movable seat plate (501). The four connecting rods (504) penetrate the upper surface of the movable seat plate (501) and are respectively inserted into the four socket holes (502). A compression spring (505) is sleeved on the outer wall of the connecting rod (504) and located in the socket hole (502). A compression plate (506) that compresses against the compression spring (505) is fixedly connected to the lower end of the connecting rod (504). Both ends of the movable seat plate (501) located in the limiting mounting shell (401) have longitudinally penetrating strip-shaped clearance holes (507) perpendicular to the movable seat plate (501). Both ends of the movable seat plate (501) have transversely extending clearance holes (507). An insertion hole (508) is provided, and a linkage plate (509) is inserted into the insertion hole (508). Both ends of the linkage plate (509) located within the insertion hole (508) are fixedly connected to a pull rod (510). The pull rod (510) passes through a strip-shaped clearance hole (507) and extends to the outside of the movable seat plate (501). A linkage arm (511) is rotatably connected to the outer end of the pull rod (510). The upper end of the linkage arm (511) is rotatably connected to the top plate (503). A buffer groove (512) passes through the upper end of the linkage plate (509) near its outer end. The movable seat plate (501)... Both ends of the top surface of the top plate (503) and the top plate (503) are provided with a buffer groove (513). The buffer groove (512) and the buffer groove (513) are both sleeved with the linkage rod (409). The upper end of the movable seat plate (501) is fixedly connected with a second pressure sensor (514) that presses against the top plate (503). The upper end of the movable seat plate (501) is fixedly connected with an extension rod (515). The extension rod (515) passes through the top plate (503) and extends to the upper end of the top plate (503). The upper end of the extension rod (515) is fixedly connected with a third pressure sensor (516) that cooperates with the top plate (503). The power assembly (6) includes a support frame (61) and a second servo motor (62). The support frame (61) is slidably connected to the support column (32) through two limiting grooves (34). An extension arm (63) extending downward from the outside of the frame (11) is fixedly connected to one end of the support frame (61), and the extension arm (63) is slidably connected to the base plate (31). The other side of the support frame (61) is fixedly connected to the second servo motor (62). A transmission shaft (64) is rotatably connected inside the support frame (61). The transmission shaft (64) is connected to the second servo motor (62). 2) The output end is fixedly connected, the transmission shaft (64) is located on one side of the extended arm (63) and a first pulley (65) is fixedly connected. A linkage belt (66) is sleeved on the outer side of the first pulley (65). The first pulley (65) is linked to a second pulley (67) through the linkage belt (66). The second pulley (67) is rotatably connected to the lower side of the extended arm (63). The central shaft of the second pulley (67) is fixedly connected to the cutting saw blade (7). A protective cover (68) is sleeved on the outer side of the second pulley (67). The protective cover (68) is fixedly connected to the extended arm (63). The adjustment mechanism (8) includes two threaded rods (81) and a third servo motor (82). The upper and lower ends of the threaded rods (81) are fixedly connected to connecting seats (83). The two threaded rods (81) are respectively fixedly connected to the two ends of the limiting mounting shell (401) through the connecting seats (83). The outer side wall of the threaded rods (81) is screwed with a threaded tube (84). The threaded tube (84) is rotatably connected to the movable seat plate (501). The lower end of the outer side wall of the threaded tube (84) is fixedly connected to a drive pulley (85). A drive belt (86) is sleeved between the two drive pulleys (85). The outer side wall of one of the threaded tubes (84) is located inside the movable seat plate (501) and is fixedly connected to a worm gear (87). The third servo motor (82) is fixedly connected to the movable seat plate (501), and the output end of the third servo motor (82) is fixedly connected to a worm (88) that meshes with the worm gear (87). The electrical control box (9) includes an electrical control box shell (91), in which a water tank (92), a storage battery (93), a PLC controller (94), and a control panel (95) are fixedly connected. The PLC controller (94) is electrically connected to the control panel (95), a self-locking motor (16), a first servo motor (402), a second servo motor (62), a third servo motor (82), a first pressure sensor (412), a second pressure sensor (514), a third pressure sensor (516), and a lead screw motor (37). The water tank (92) is fixedly connected to a protective cover (68) through a water pipe with a valve. The PLC controller (94) is electrically connected to the storage battery (93), and the storage battery (93) is electrically connected to the generator (2).

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