Device and method for automatically adjusting and controlling arch ring of fabricated arch bridge

Abstract

The invention relates to the technical field of bridge construction, and particularly discloses an automatic adjustment control device and method for an arch ring of a fabricated arch bridge, the automatic adjustment control device comprises a support and an arch springing, the arch ring is arranged on the arch springing and located above the support, and a steel structure supporting mechanism used for supporting the arch ring is arranged on the support; a plurality of groups of miniRTKs and stress sensors are arranged on the arch ring, the miniRTKs are used for measuring the position of the arch ring, and the stress sensors are used for feeding back the stress change condition at the dangerous section; the steel structure supporting mechanism comprises a three-way jack, the three-way jack is detachably connected with the support, a matching sleeve is arranged at the telescopic end of the three-way jack, a movable block is hinged to the matching sleeve, and an adjusting assembly used for adjusting the line type of the arch ring is arranged between the movable block and the matching sleeve. The technical problems that the line type of the arch ring cannot be precisely controlled, and multi-section synchronous adjustment cannot be achieved during closure, so that the position precision of the arch ring is poor, and the quality cannot achieve the expected effect after an arch bridge is installed are solved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular discloses an automatic adjustment control device and method for an arch ring of an assembled arch bridge. Background Art

[0002] With the rapid development of the national economy, the number of roads and bridges across the country has gradually increased. Among them, arch bridges have a unique position among bridges. The history of arch bridges is more than 1,800 years. They have beautiful shapes and unique structures. They have both practical value and aesthetic value. When installing the arch ring of an arch bridge, there are installation methods such as the bracket method, cable hoisting method, rotation construction method and cantilever construction method. Among them, the bracket method is a commonly used construction method for the arch ring of a prefabricated arch bridge. By building a bracket as a construction platform, a stable support is provided for the assembly and installation of the arch ring, thereby installing the arch ring.

[0003] For example, the invention with patent number CN111851317A discloses a CN111851317A, which includes the following steps: 1) constructing an arch seat on a pedestal; 2) installing an arch ring support; the arch ring support includes an arch truss and fixed supports supported at both ends of the arch truss, the fixed supports are fixed on the pedestal, the arch ring truss is hoisted as a whole, and its two ends are respectively fixed on the two fixed supports; 3) the steel bar structure of the arch ring is erected between two adjacent arch seats, and a casting formwork is erected along the steel bar structure of the arch ring, and the arch truss supports the casting formwork; 4) completing the concrete pouring of the arch ring; 5) disassembling the arch ring support. When installing the arch ring, the bracket does not have the function of precise adjustment of elevation and plane position. Usually, a small jack is used to adjust the elevation and plane position accuracy of the arch ring. The line shape of the arch ring cannot be accurately controlled, and multi-segment synchronous adjustment cannot be achieved during the joint closing, resulting in poor elevation control accuracy, which in turn leads to poor position accuracy of the arch ring, making the quality of the arch bridge after installation fail to achieve the expected effect. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide an automatic adjustment control device and method for the arch ring of an assembled arch bridge, so as to solve the technical problems that the line shape of the arch ring cannot be accurately controlled and multi-segment synchronous adjustment cannot be achieved during closure, resulting in poor position accuracy of the arch ring and the quality of the arch bridge after installation cannot achieve the expected effect.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic adjustment control device for an arch ring of an assembled arch bridge, comprising a bracket and an arch foot, an arch ring is arranged on the arch foot, the arch ring is located above the bracket, and a steel structure support mechanism for supporting the arch ring is arranged on the bracket; a plurality of miniRTKs and stress sensors are arranged on the arch ring, the miniRTK is used to measure the position of the arch ring, and the stress sensor is used to feedback the stress change at the dangerous section; the steel structure support mechanism comprises a three-way jack, the three-way jack is detachably connected to the bracket, a matching sleeve is arranged on the telescopic end of the three-way jack, a movable block is hinged on the matching sleeve, and an adjustment component for adjusting the linear shape of the arch ring is arranged between the movable block and the matching sleeve. The arch ring is fixed by the steel structure support mechanism, and the position of the arch ring is accurately adjusted in cooperation with the miniRTK and the stress sensor, so that the installation of the arch ring is located at the same position as the expected position, thereby improving the position accuracy of the arch ring after installation, thereby ensuring that the quality of the arch bridge after installation is close to the expected.

[0006] Furthermore, the adjustment assembly includes a hydraulic cylinder, a fixed platform is provided on the matching sleeve, the fixed end of the hydraulic cylinder is hinged on the fixed platform, and the telescopic end of the hydraulic cylinder is hinged on the movable block. The adjustment assembly is used to adjust the line shape of the arch ring.

[0007] Furthermore, the steel structure support mechanism includes two groups of first fixing sleeves, the two groups of the first fixing sleeves are fixed by a plurality of groups of second connecting columns, one group of the first fixing sleeves is fixedly connected to the movable block, and two groups of top support components are arranged in the first fixing sleeves; the two groups of the top support components are staggered in an X shape, and the two groups of the top support components are not located in the same plane. The steel structure support mechanism is used to fix the arch ring, and can also adjust the plane accuracy, elevation and line type of the arch ring.

[0008] Furthermore, the top support assembly includes two groups of second fixing sleeves and prisms, the two groups of second fixing sleeves are fixedly connected to the first fixing sleeve, the axis lines of the two groups of second fixing sleeves are collinear, the second fixing sleeves are both penetrated by threaded columns, the threaded columns are provided with rotatable first connecting columns, the first connecting columns are hinged with clamping blocks, the steel pipe of the arch ring is clamped on the clamping blocks; the two groups of threaded columns are both provided with square holes, and the two ends of the prism are respectively penetrated by the two groups of square holes. The arch ring is fixed by the top support assembly, so that the steel structure support mechanism can adjust the position of the arch ring conveniently.

[0009] Furthermore, the two groups of the supporting mechanisms are driven by a driving assembly; the driving assembly includes a driving motor, the output end of which is connected to a second spur gear and a second bevel gear, the second spur gear and the second bevel gear are respectively meshed with a first spur gear and a first bevel gear, and the first spur gear and the first bevel gear are respectively fixedly connected to the two groups of prisms. The driving assembly is used to drive the supporting assembly, and the driving assembly can make the second bevel gear parallel to the bottom surface of the second spur gear through the matching angle between the bevel gears, and drive the two groups of crossed prisms simultaneously through a power source.

[0010] Furthermore, four groups of first support seats and second support seats are arranged in the first fixing sleeve, the prism is rotatably connected to the corresponding two groups of the first support seats, and the second spur gear and the second bevel gear are rotatably connected to the second support seat. The first support seat and the second support seat play a limiting role.

[0011] Furthermore, a fixing block is fixedly connected to the bracket, the three-way jack is fixedly connected to the connecting block, a connecting groove is provided on the fixing block, and the connecting block is slidably mounted in the connecting groove. The three-way jack is fixed to the bracket by fixing the three-way jack to the connecting block, the connecting block to the fixing block, and the fixing block to the bracket.

[0012] Furthermore, tooth blocks are provided on both sides of the connection block, tooth grooves are provided on both sides of the connection groove, and two groups of tooth blocks are respectively clamped in the two groups of tooth grooves; two groups of limit blocks are slidably clamped on the fixed block, and the two groups of limit blocks are respectively clamped on both sides of the connection block. The connection block and the fixed block are fixed by the tooth blocks cooperating with the tooth grooves, and the limit blocks cooperating with the fixed block.

[0013] A method for using an automatic adjustment control device for an assembled arch bridge arch ring comprises the following steps: S1: First, build the bracket and install the arch foot, then fix the three-way jack at a suitable position on the bracket, and at the same time, the tooth block is engaged with the tooth groove, and then slide the two sets of limit blocks, clamp the limit blocks on the connecting blocks, and fix the three-way jack to the bracket; S2: hoist the arch ring to a suitable position of the bracket, and then move the two sets of first fixing sleeves to the center of the arch ring cross section through the cooperation of the hydraulic cylinder and the three-way jack, start the driving motor, the output shaft of the driving motor drives the second spur gear and the second bevel gear to rotate, the second spur gear and the second bevel gear drive the first spur gear, the first bevel gear and the two sets of prisms to rotate, the prism drives the two sets of threaded columns to rotate through the square hole, so that the threaded columns extend out, the threaded columns drive the first connecting column and the clamping block to move, and the steel pipe is clamped in the clamping block; S3: Start the hydraulic cylinder, extend and retract the hydraulic rod to drive the movable block to rotate in the matching sleeve, adjust the line shape of the arch ring, and move the arch ring to the specified position with the help of miniRTK, three-way jack and stress sensor to ensure the accurate position accuracy after the arch bridge is installed; S4: When all the arch rings are installed, the drive motor rotates in the opposite direction to shrink the threaded column, driving the block to separate from the arch ring, and the steel structure support mechanism is separated from the arch ring through the cooperation of the hydraulic cylinder and the three-way jack; then the three-way jack is separated from the bracket, and then the bracket is disassembled to complete the installation of the arch ring.

[0014] The arch ring is fixed by cooperating with the top support assembly and the driving assembly. At the same time, the line shape and position of the arch ring are adjusted by the three-way jack and the adjustment assembly to move the arch ring to the ideal position, thereby ensuring that the quality of the arch bridge can achieve the expected effect after installation.

[0015] The working principle and beneficial effects of this solution are: The top support assembly is driven by the driving assembly, the arch ring is fixed by the top support assembly, and the arch ring is moved by the three-way jack to ensure the accuracy of the elevation and plane position of the arch ring installation position. The adjustment mechanism can rotate the arch ring and adjust the line shape of the arch ring to ensure the accuracy of the arch ring line shape. Through the cooperation of miniRTK, stress sensor and computer control system, it can be ensured that when the arch ring moves to the specified position, the actual installation position of the arch ring coincides with the ideal installation position, thereby ensuring the accuracy of the arch ring installation position and ensuring the expected quality of the arch ring after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment; Figure 2 An exploded view of an embodiment; Figure 3 This is an enlarged schematic diagram of region A in the embodiment; Figure 4 It is a structural schematic diagram of the steel structure support mechanism in the embodiment; Figure 5 An exploded view of the steel structure support mechanism in the embodiment; Figure 6 This is an enlarged schematic diagram of region B in the embodiment; Figure 7 It is a side view of the steel structure support mechanism in the embodiment.

[0017] The markings in the accompanying drawings are as follows: bracket 1, arch ring 2, three-way jack 3, motor box 7, handle 12; Connecting block 401, connecting groove 402, tooth block 403, tooth groove 404, fixing block 405, limiting groove 406, limiting block 407, and clamping groove 408; Matching sleeve 501, movable block 502, first fixed sleeve 503, second fixed sleeve 504, first connecting column 505, clamping block 506, second connecting column 507, threaded column 508, square hole 509, prism 510, first bevel gear 511, first spur gear 512, second spur gear 513, second bevel gear 514, driving motor 515, first supporting seat 516, second supporting seat 517, sliding groove 518; Fixed platform 601 , first articulated seat 602 , second articulated seat 603 , hydraulic cylinder 604 . DETAILED DESCRIPTION

[0018] The following is further described in detail through specific implementation methods: Example like Figures 1 to 7 As shown, an automatic adjustment control device for the arch ring of an assembled arch bridge is disclosed, comprising a bracket 1 and an arch foot 8, wherein the arch foot 8 is connected to a plurality of arch rings 2, the arch ring 2 is located above the bracket 1, and a steel structure support mechanism for supporting the arch ring 2 is provided on the bracket 1, and a plurality of miniRTK and stress sensors are provided on the arch ring 2, wherein the miniRTK is used to measure the position of the arch ring 2, and cooperate with a computer control system to perform real-time modeling of the arch ring 2, and simultaneously fit the real-time model with the theoretical model, and calculate the three-dimensional coordinate difference of the arch ring 2, so as to move the arch frame to a specified position, ensure the position accuracy of the arch ring 2, and ensure that the quality of the completed arch bridge installation is close to the expected effect; the stress sensor is installed at the dangerous section of the arch ring 2, and can provide real-time feedback on the stress change at the dangerous section, so as to avoid structural damage to the arch ring 2 during installation, thereby resulting in substandard quality of the arch bridge after installation.

[0019] The steel structure support mechanism includes a three-way jack 3, which is detachably connected to the bracket 1. A matching sleeve 501 is fixedly connected to the telescopic end of the three-way jack 3, and a movable block 502 is hinged in the matching sleeve 501. A sliding groove 518 is provided on the matching sleeve 501, and one end of the movable block 502 is slidably mounted in the sliding groove 518. Two groups of first fixed sleeves 503 are arranged on the movable block 502, and a plurality of groups of second connecting columns 507 are arranged between the two groups of first fixed sleeves 503. The plurality of groups of second connecting columns 507 are annularly arranged between the two groups of first fixed sleeves 503. The two ends of the second connecting columns 507 are respectively fixedly connected to the two groups of first fixed sleeves 503, and one group of fixed sleeves is fixedly connected to one end of the movable block 502. Two groups of top support assemblies are provided, and the two groups of top support assemblies are crossed in an X shape, and at the same time, the two groups of top support assemblies are not located in the same horizontal plane; the top support assemblies include two groups of second fixing sleeves 504, and the two groups of second fixing sleeves 504 are fixedly connected to the first fixing sleeve 503, and the axis lines of the two groups of second fixing sleeves 504 are collinear, and threaded columns 508 are installed in the two groups of second fixing sleeves 504, and the two groups of threaded columns 508 rotate in opposite directions to ensure that the two groups of first connecting columns 505 move in opposite directions, and rotatable first connecting columns 505 are provided on the two groups of threaded columns 508, and the first connecting column 505 is hinged with a clamping block 506, which is fan-shaped, and a rubber block is arranged in the clamping block 506, and the clamping block 506 is clamped on one group of steel pipes of the arch ring 2.

[0020] A driving assembly is arranged in the first connecting sleeve, and the driving assembly includes a driving motor 515. The driving motor 515 is fixed in the motor box 7 by bolts. The motor box 7 is fixed on the first connecting sleeve. The output end of the driving motor 515 is fixedly connected to the second spur gear 513 through a coupling. A fixing column is arranged on the second spur gear 513. The fixing column is arranged on the second bevel gear 514. The second spur gear 513 is meshed with the first spur gear 512. The second bevel gear 514 is meshed with the first bevel gear 511. The first spur gear 512 and the first bevel gear 511 are both provided with a prism 510. Square holes 509 are opened on the two groups of threaded columns 508. The two ends of the prism 510 are respectively inserted into the corresponding two groups of square holes 509. Four groups of first support seats 516 and second support seats 517 are arranged in the first connecting sleeve. The two ends of the prism 510 are rotatably connected to two groups of first support seats 516 respectively, and the fixing column is rotatably connected to the second support seat 517.

[0021] An adjustment component for adjusting the linear shape of the arch ring 2 is arranged between the matching sleeve 501 and the movable block 502, and the adjustment component includes a hydraulic cylinder 604. A fixed platform 601 is arranged on the matching sleeve 501, and a first articulated seat 602 is fixedly connected to the fixed platform 601. A second articulated seat 603 is hinged on the first articulated seat 602. The fixed end of the hydraulic cylinder 604 is fixedly connected to the second articulated seat 603, and the telescopic end of the hydraulic cylinder 604 is hinged on the movable block 502.

[0022] A fixing block 405 is fixedly connected to the bracket 1, and a connecting groove 402 is provided on the fixing block 405. The three-way jack 3 is fixedly connected to the connecting block 401 by bolts, and the connecting block 401 is clamped in the connecting groove 402. Tooth blocks 403 are provided on both sides of the connecting block 401, and tooth grooves 404 are provided on both sides of the connecting groove 402. Two groups of tooth blocks 403 are respectively clamped in the two groups of tooth grooves 404; a limiting groove 406 is provided at the bottom end of the connecting groove 402, and two groups of limiting blocks 407 are slidably clamped in the limiting groove 406. Slots 408 are provided on both sides of the connecting block 401, and the other ends of the two groups of limiting blocks 407 are respectively clamped in the two groups of slots 408, and a handle 12 is provided on the limiting block 407.

[0023] A method for using an automatic adjustment control device for an assembled arch bridge arch ring comprises the following steps: S1: First, build the bracket 1 and install the arch foot, and then fix the fixing block 405 to the bracket 1; then fix the three-way jack 3 to the connecting block 401 by bolts, and then clamp the connecting block 401 in the appropriate position in the connecting groove 402, and at the same time ensure that the tooth block 403 is clamped in the tooth groove 404, and then slide the two sets of limit blocks 407 through the handle 12, and the limit blocks 407 slide in the limit groove 406 until the limit blocks 407 are clamped in the clamping groove 408 on the connecting block 401, and fix the connecting block 401 and the fixing block 405 through the limit blocks 407.

[0024] S2: Then move the arch ring 2 onto the bracket 1 and place the arch ring 2 in a suitable position. At the same time, the steel arch support mechanism is located in the arch ring 2. Then start the hydraulic cylinder 604 and the three-way jack 3 to move the two sets of first fixing sleeves 503 to the axial center line of the arch ring 2, so that the top support assembly can fix the arch ring 2. Then start the drive motor 515. The output shaft of the drive motor 515 drives the coupling, the second spur gear 513 and the second bevel gear 514 to rotate. The second spur gear 513 drives the first spur gear 512 to rotate. The second bevel gear 514 drives the first bevel gear 511 to rotate. The first spur gear 512 and the first bevel gear 511 are separated. The prism 510 drives the corresponding prism 510 to rotate, and the prism 510 drives the two groups of threaded columns 508 to rotate through the square hole 509. At this time, the first connecting column 505 and the threaded column 508 are relatively stationary, and the threaded column 508 and the second fixed sleeve 504 are threadedly matched to make the threaded column 508 extend, driving the first connecting column 505 to move until the steel pipe on the arch ring 2 is located in the block 506. The block 506 drives the first connecting column 505 to rotate around the threaded column 508 until the steel pipe is clamped in the block 506. The steel pipe compresses the rubber block in the block 506 to make the rubber block fit with the steel pipe, and the arch ring 2 is fixed on the three-way jack 3 through the top support assembly.

[0025] S3: Start the hydraulic cylinder 604, and drive the movable block 502 to rotate in the matching sleeve 501 through the extension and retraction of the hydraulic rod, so that the movable block 502 slides in the sliding groove 518, and drives the arch ring 2 to rotate around the axis of the matching sleeve 501, so as to adjust the line type of the arch ring 2, and cooperate with the miniRTK to adjust the line type of the arch ring 2 to a suitable one; start the three-way jack 3, and the three-way jack 3 drives the arch ring 2 to move, and the miniRTK and the stress sensor cooperate to move the arch ring 2 to the specified position, while avoiding damage to the dangerous section structure of the arch ring 2, ensuring that the position accuracy is accurate after the arch bridge is installed, and the quality meets the standards.

[0026] S4: After all the arch rings 2 of the arch bridge are installed at designated positions through the cooperation of the steel structure support mechanism, miniRTK, three-way jack 3, stress sensor and computer control system, after the arch rings 2 are fixed, two groups of adjacent arch rings 2 are fixed by bolts or welding, and the arch rings 2 are fixedly connected to the arch feet; after all the arch rings 2 are installed, the shape of the arch rings 2 is a continuous curved body, and several groups of arch rings 2 support each other, so that the arch bridge has higher stability.

[0027] S5: The driving motor 515 rotates in the opposite direction, and drives the first bevel gear 511 and the first spur gear 512 to rotate through the second bevel gear 514 and the second spur gear 513, thereby driving the threaded column 508 to rotate through the prism 510, driving the threaded column 508 to contract, so that the block 506 is separated from the arch ring 2, and the steel structure support mechanism is moved to the outside of the arch ring 2 through the cooperation of the hydraulic cylinder 604 and the three-way jack 3.

[0028] S6: Move the limit block 407 through the handle 12 to separate the limit block 407 from the slot 408, release the fixation between the steel structure support mechanism and the fixed block 405, separate the steel structure support mechanism from the fixed block 405, and then disassemble the fixed block 405 and the bracket 1 to complete the installation of the arch ring 2.

[0029] The miniRTK, the three-way jack 3, the stress sensor and the computer control system are all common technical means used by those skilled in the art, and their structures, connection methods and usage methods are all technologies well known to those skilled in the art.

[0030] Since the curvature of each section of the arch ring 2 is different, the arch ring 2 can be fixed by the top support assembly only through the cooperation of the clamping block 506 and the rubber block. At the same time, the rubber block can increase the contact area with the arch ring 2 and improve the friction coefficient, so that the arch ring 2 can be firmly fixed on the steel structure support mechanism; the two groups of top support assemblies cross in an X shape support the four steel pipes around the arch ring 2 and fix the arch ring 2 on the steel structure support mechanism, so that the adjustment assembly can accurately adjust the line shape of the arch ring 2, and the two groups of top support assemblies are not located in the same plane, which can It is able to prevent the two groups of top support assemblies from interfering with each other when moving, thereby causing the top support assemblies to be unable to fix the arch ring 2; the second spur gear 513 and the second bevel gear 514 are respectively provided on the prism 510 in the two groups of top support assemblies, and the second bevel gear 514 is meshed with the first bevel gear 511. The meshing angle of the two groups of bevel gears is determined according to the angle of the bevel gears. By cooperating with bevel gears of appropriate angles, the first bevel gear 511 can be made parallel to the bottom surface of the first spur gear 512, and the extension and retraction of the two groups of top support assemblies can be controlled by a group of driving motors 515.

[0031] Through the cooperation between the rack and the tooth groove 404, the horizontal movement of the connecting block 401 can be limited. At the same time, since the distance between the two sets of adjacent teeth is small, the movement of the connecting block 401 in the connecting groove 402 is close to stepless adjustment, and the position accuracy requirement of the connecting block 401 is not high. The position accuracy of the arch ring 2 mainly depends on the three-way jack 3, so the cooperation between the tooth block 403 and the tooth groove 404 is sufficient to meet the position accuracy of the connecting block 401, and the limit block 407 cooperates with the limit groove 406 and the clamping groove 408 to limit the vertical movement of the connecting block 401; through the cooperation between the limit block 407 and the limit groove 406 and the clamping groove 408, the rack and the tooth groove 404 cooperate to fix the connecting block 401 on the fixed block 405, thereby fixing the three-way jack 3 and fixing the base point of the movement of the arch ring 2, thereby ensuring the accuracy of the movement of the arch ring 2, thereby ensuring the quality of the arch ring 2 after installation.

[0032] The arch ring 2 is fixed by the steel structure support mechanism, and then the elevation and plane position of the arch ring 2 are adjusted by the three-way jack 3. The adjustment mechanism adjusts the line shape of the arch ring 2. With the cooperation of miniRTK, stress sensor and computer control system, the arch ring 2 can be accurately moved to the specified position with a suitable posture, so that the actual installation position of the arch ring 2 coincides with the ideal installation position, ensuring the position accuracy of the arch ring 2 installation, so that the quality of the arch bridge after installation is close to the expectation.

[0033] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the present invention.

Claims

1. An automatic adjustment control device for an assembled arch bridge arch ring, characterized in that: It comprises a bracket and an arch foot, wherein the arch foot is provided with an arch ring, the arch ring is located above the bracket, and the bracket is provided with a steel structure support mechanism for supporting the arch ring; Several groups of miniRTK and stress sensors are arranged on the arch ring, wherein the miniRTK is used to measure the position of the arch ring, and the stress sensor is used to feedback the stress change at the dangerous section; The steel structure support mechanism includes a three-way jack, which is detachably connected to the bracket. A matching sleeve is provided on the telescopic end of the three-way jack, a movable block is hinged on the matching sleeve, and an adjustment component for adjusting the arch ring line shape is provided between the movable block and the matching sleeve.

2. The automatic adjustment control device for the arch ring of an assembled arch bridge according to claim 1 is characterized in that: The adjustment assembly comprises a hydraulic cylinder, a fixed platform is arranged on the matching sleeve, a fixed end of the hydraulic cylinder is hinged on the fixed platform, and a telescopic end of the hydraulic cylinder is hinged on the movable block.

3. The automatic adjustment control device for the arch ring of an assembled arch bridge according to claim 2 is characterized in that: The steel structure support mechanism includes two groups of first fixing sleeves, the two groups of the first fixing sleeves are fixed by a plurality of groups of second connecting columns, one group of the first fixing sleeves is fixedly connected to the movable block, and two groups of top support components are arranged in the first fixing sleeves; The two groups of top support components are staggered in an X shape, and the two groups of top support components are not located in the same plane.

4. The automatic adjustment control device for the arch ring of an assembled arch bridge according to claim 3 is characterized in that: The top support assembly includes two groups of second fixing sleeves and prisms, the two groups of second fixing sleeves are fixedly connected to the first fixing sleeves, the axis lines of the two groups of second fixing sleeves are collinear, the second fixing sleeves are both penetrated by threaded columns, the threaded columns are provided with rotatable first connecting columns, the first connecting columns are hinged with a clamping block, and the steel pipe of the arch ring is clamped on the clamping block; Square holes are provided on the two groups of threaded columns, and the two ends of the prism are respectively inserted into the two groups of square holes.

5. The automatic adjustment control device for the arch ring of an assembled arch bridge according to claim 4 is characterized in that: The two groups of supporting mechanisms are driven by a driving assembly; The driving assembly includes a driving motor, and a second spur gear and a second bevel gear are connected to the output end of the driving motor. The second spur gear and the second bevel gear are respectively meshed with a first spur gear and a first bevel gear. The first spur gear and the first bevel gear are respectively fixedly connected to the two groups of prisms.

6. The automatic adjustment control device for the arch ring of a prefabricated arch bridge according to claim 5 is characterized in that: Four groups of first support seats and second support seats are arranged in the first fixing sleeve, the prism is rotatably connected to the corresponding two groups of the first support seats, and the second spur gear and the second bevel gear are rotatably connected to the second support seat.

7. The automatic adjustment control device for the arch ring of a prefabricated arch bridge according to claim 6 is characterized in that: A fixing block is fixedly connected to the bracket, the three-way jack is fixedly connected to the connecting block, a connecting groove is provided on the fixing block, and the connecting block is slidably clamped in the connecting groove.

8. The automatic adjustment control device for the arch ring of an assembled arch bridge according to claim 7 is characterized in that: Tooth blocks are arranged on both sides of the connection block, tooth grooves are arranged on both sides of the connection groove, and two groups of tooth blocks are respectively clamped in the two groups of tooth grooves; Two groups of limit blocks are slidably mounted on the fixed block, and the two groups of limit blocks are respectively mounted on both sides of the connecting block.

9. A method for using an automatic adjustment control device for an assembled arch bridge arch ring, comprising the following steps: S1: First, build the bracket and install the arch foot, then fix the three-way jack at a suitable position on the bracket, and at the same time, the tooth block is engaged with the tooth groove, and then slide the two sets of limit blocks, clamp the limit blocks on the connecting blocks, and fix the three-way jack to the bracket; S2: hoist the arch ring to a suitable position of the bracket, and then move the two sets of first fixing sleeves to the center of the arch ring cross section through the cooperation of the hydraulic cylinder and the three-way jack, start the driving motor, the output shaft of the driving motor drives the second spur gear and the second bevel gear to rotate, the second spur gear and the second bevel gear drive the first spur gear, the first bevel gear and the two sets of prisms to rotate, the prism drives the two sets of threaded columns to rotate through the square hole, so that the threaded columns extend out, the threaded columns drive the first connecting column and the clamping block to move, and the steel pipe is clamped in the clamping block; S3: Start the hydraulic cylinder, extend and retract the hydraulic rod to drive the movable block to rotate in the matching sleeve, adjust the line shape of the arch ring, and move the arch ring to the specified position with the help of miniRTK, three-way jack and stress sensor to ensure the accurate position accuracy after the arch bridge is installed; S4: When all the arch rings are installed, the drive motor rotates in the opposite direction to shrink the threaded column, driving the block to separate from the arch ring, and the steel structure support mechanism is separated from the arch ring through the cooperation of the hydraulic cylinder and the three-way jack; then the three-way jack is separated from the bracket, and then the bracket is disassembled to complete the installation of the arch ring.

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