Balance adjusting system and method for hoisting steel structure of bullet train station

Abstract

The invention discloses a motor station steel structure hoisting balance adjusting system and method, and relates to the field of motor station construction, the motor station steel structure hoisting balance adjusting system comprises a hoisting frame, one side of the hoisting frame is provided with a first supporting seat, the first supporting seat is rotatably connected with a hoisting roller, the hoisting roller is wound with a hoisting rope, the hoisting rope is provided with a hoisting ring, and the hoisting ring is connected with the hoisting frame. A coarse adjustment mechanism is arranged between the hoisting rope and the hoisting ring, and a fine adjustment mechanism is arranged on the hoisting ring. The coarse adjustment mechanism is used for changing the length of the hoisting rope, the hoisting rope drives the hoisting ring to change the height, then the fine adjustment mechanism is used for further adjusting the height of the hoisting ring, and after adjustment is completed, the hoisting rope is used for hoisting a steel structure, so that a traditional backward operation mode depending on manual observation and manual adjustment can be changed; and the leveling process is converted into an accurate digital control problem, so that the fundamental spanning of higher precision is realized, the hoisting leveling time is greatly shortened, and the overall construction efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of high-speed railway station construction, and in particular to a high-speed railway station steel structure hoisting balance adjustment system and method. Background Technology

[0002] With the rapid expansion of my country's high-speed railway network, the scale and complexity of railway stations, as important transportation hubs, are increasing day by day. Modern railway stations widely adopt large-span and large-space steel structure designs to support the magnificent station roof and transparent waiting hall. These steel structure components are usually huge and incredibly heavy. Their hoisting and installation are key links in the station construction process, and their construction quality is directly related to the safety, progress and final architectural effect of the overall project.

[0003] Currently, for the hoisting of such large steel structures, the common approach is to symmetrically arrange four independent hoisting towers around the structure. Each hoisting tower is equipped with a winch, and the four corner points of the steel structure are connected by steel cables. The aim is to lift the steel structure smoothly and install it to the predetermined position through the synchronous operation of the four winches. However, in actual operation, due to many factors such as differences in foundation settlement, minor errors in the winch equipment itself, elastic elongation of steel cables, and uneven load distribution, it is difficult to ensure absolute synchronization of the four hoisting points. This asynchrony can cause the steel structure to tilt, twist, and other posture imbalances during hoisting. In severe cases, it can even cause local overload deformation of the structure, bringing huge safety risks.

[0004] Faced with the aforementioned imbalance problem, the existing solutions rely heavily on the experience and visual observation of on-site workers. When tilting is detected, the commanding personnel need to coordinate with the operators at each hoisting point via walkie-talkie to manually control the winch for "inching" adjustments. This traditional operation mode of manual judgment, communication, and adjustment is not only inefficient and labor-intensive, but also has poor adjustment accuracy, making it difficult to achieve millimeter-level precise leveling. Summary of the Invention

[0005] The purpose of this application is to address the problem that existing solutions proposed in the background art rely heavily on the experience and visual observation of on-site workers. When tilting is detected, the commander needs to coordinate with the operators at each hoisting point via walkie-talkie to manually control the winch for "jogging" adjustments. This traditional manual judgment, communication, and adjustment mode is not only inefficient and labor-intensive, but also has poor adjustment accuracy, making it difficult to achieve millimeter-level precise leveling. This application provides a balancing adjustment system and method for hoisting steel structures in railway stations.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A steel structure hoisting and balancing adjustment system for a high-speed railway station includes a hoisting frame. A control box is installed on one side of the hoisting frame. Four symmetrically arranged connecting frames are fixed to the top of the hoisting frame. Support rods are fixed between adjacent connecting frames. A fixed pulley is rotatably connected to the support rod. A support seat is provided on one side of the hoisting frame and fixed to the ground. A hoisting roller is rotatably connected to the support seat. A hoisting rope is wound on the hoisting roller. A hoisting motor is fixed to one side of the support seat. The output end of the hoisting motor passes through the support seat and is fixedly connected to the hoisting roller. The hoisting rope passes through the fixed pulley and is driven by the fixed pulley. A hoisting ring is provided on the hoisting rope. A laser rangefinder is fixed on the hoisting ring. A coarse adjustment mechanism is provided between the hoisting rope and the hoisting ring. A fine adjustment mechanism is provided on the hoisting ring. The control box is electrically connected to the hoisting motor and the laser rangefinder.

[0008] By adopting the above technical solution, when the laser rangefinder detects a shift in the steel structure, the hoisting motor stops working first. The coarse adjustment mechanism changes the length of the hoisting rope, which in turn drives the hoisting ring to change its height. Then, the fine adjustment mechanism further adjusts the height of the hoisting ring. After the adjustment is completed, the hoisting rope is used to hoist the steel structure. This changes the outdated operation mode that relies on manual observation and adjustment, transforming the leveling process into a precise digital control problem. This achieves a fundamental leap in precision, ensuring a tight fit between large steel structures. The control box provides unified command, with all hoisting points responding synchronously and automatically. This enables intelligent collaboration and parallel operation between multiple mechanisms, simplifying complex collaborative work into a "one-click" operation. This significantly shortens the hoisting and leveling time and improves overall construction efficiency.

[0009] Furthermore, the coarse adjustment mechanism includes a second support base mounted on the ground, located on one side of a first support base. A coarse adjustment roller is rotatably connected to the second support base, and a coarse adjustment motor is fixedly mounted on the second support base. The output end of the coarse adjustment motor passes through the second support base and is fixedly connected to the coarse adjustment roller. A coarse adjustment rope is wound around the coarse adjustment roller and fixedly connected to the end of a hoisting rope. A second fixed pulley is rotatably connected to the support rod, and the coarse adjustment rope is drivenly connected to the second fixed pulley. A movable pulley is drivenly connected between the coarse adjustment rope and the hoisting rope. A first connecting block is fixed on the movable pulley, and an auxiliary stabilizing component is provided on the first connecting block. A limit component is provided on one side of the first connecting block. The coarse adjustment motor is electrically connected to the control box.

[0010] By adopting the above technical solution and adjusting the forward and reverse rotation of the coarse adjustment motor to wind up and down the coarse adjustment rope, the height of the lifting ring can be significantly changed through the principle of the movable pulley system at twice the speed of wind up and down the coarse adjustment rope. This enables a wide range and rapid adjustment of the lifting point position, greatly improving the leveling efficiency. At the same time, this design separates the coarse adjustment function from the main lifting mechanism, so that the main lifting motor only needs to be responsible for the overall lifting. The division of labor is clear, and the system stability is higher.

[0011] Furthermore, the auxiliary stabilizing component includes a sliding rail fixed on the hoisting frame, a sliding block slidably connected to the sliding rail, and a stabilizing block fixed on the sliding block.

[0012] By adopting the above technical solution, the connecting block drives the stabilizing block, the stabilizing block drives the sliding block, and the sliding block moves in the sliding rail, thereby effectively preventing the swaying and twisting of the hoisting rope and load that may occur during the leveling process, and greatly enhancing the stability and safety of the system during the dynamic adjustment process.

[0013] Furthermore, the limiting component includes a support block fixed to one side of the stabilizing block. The support block is L-shaped. A limiting rod is fixed to one side of the sliding rail. The limiting rod has several evenly distributed limiting tooth grooves. A limiting block is slidably connected to the support block. The limiting block corresponds to the limiting tooth grooves. A support member is provided between the support block and the limiting block.

[0014] By adopting the above technical solution, the limit block can only move upward in one direction. When the leveling is completed, the limit block is locked on the limit tooth groove on the limit rod, which reduces the load on the coarse adjustment motor, further improves the stability of coarse adjustment, and provides a stable base point for subsequent fine adjustment operations, ensuring the accuracy of fine adjustment and the safety of the entire hoisting process.

[0015] Furthermore, the support member includes a push-pull electromagnet fixed on the support block, the telescopic end of the push-pull electromagnet is fixedly connected to the limiting block, and a return spring is sleeved on the telescopic end of the push-pull electromagnet.

[0016] By adopting the above technical solution, under the action of the reset spring, the limit block is locked into the limit slot. After hoisting is completed, the control box controls the energization of the push-pull electromagnet through the relay, so that the limit block is disengaged from the limit slot on the limit rod. This enables the limit block to be disengaged from the limit rod by energizing, making it easier for the entire device to be lowered.

[0017] Furthermore, the fine-tuning mechanism includes a second connecting block fixed on the first connecting block, a fine-tuning block fixed on the second connecting block, a fine-tuning rope provided on the fine-tuning block, one end of the fine-tuning rope being fixedly connected to the lifting ring, a fine-tuning component being provided between the fine-tuning rope and the fine-tuning block, and the second connecting block being fixedly connected to the stabilizing block.

[0018] By adopting the above technical solution, one end of the fine-tuning rope is fixed on the lifting ring, and the other end is wound around the fine-tuning component inside the fine-tuning block, thereby ensuring that the fine-tuning operation is not affected by the swaying of the main lifting rope and the coarse-tuning mechanism, creating ideal working conditions for achieving millimeter-level or even higher precision adjustments.

[0019] Furthermore, the fine-tuning assembly includes a worm gear rotatably connected within the fine-tuning block, a worm wheel being drivenly connected to the worm gear, the worm wheel being rotatably connected to the fine-tuning block, a fine-tuning roller fixed to one side of the worm wheel, the fine-tuning roller being rotatably connected to the fine-tuning block, a fine-tuning rope wound around the fine-tuning roller, a fine-tuning motor fixed to one side of the fine-tuning block, the output end of the fine-tuning motor being fixedly connected to the worm gear, and the fine-tuning motor being electrically connected to the control box.

[0020] By adopting the above technical solution, when the fine-tuning motor receives the instruction from the control box, it drives the worm gear to rotate, which in turn drives the worm wheel and fine-tuning roller to rotate slowly, thereby accurately winding and unwinding the fine-tuning rope, and finally achieving micron-level precise control of the lifting ring height.

[0021] A method for balancing and adjusting the hoisting of steel structures in high-speed railway stations, the method being as follows:

[0022] S1: Initial hoisting: Start the hoisting motor, release the hoisting rope through the hoisting rollers, lower the hoisting ring and connect it to the steel structure of the railway station for initial lifting;

[0023] S2: Coarse adjustment balance. The height of each lifting point of the steel structure is monitored by a laser rangefinder. The control box starts the coarse adjustment motor of the coarse adjustment mechanism, drives the coarse adjustment rope to be wound and released, and changes the effective length of the lifting rope through the movable pulley to make preliminary correction of the tilt of the steel structure.

[0024] S3: Position locking. After coarse adjustment, the control box activates the push-pull electromagnet of the limit component, pushing the limit block into the tooth groove of the limit rod, mechanically locking the position of the movable pulley.

[0025] S4: Fine-tuning balance. The control box starts the fine-tuning motor of the fine-tuning mechanism, which drives the worm gear and fine-tuning roller to slowly raise and lower the fine-tuning rope, making millimeter-level precise fine-tuning of the final height of the lifting ring to ensure the overall level of the steel structure.

[0026] S5: Coordinated positioning. The control box coordinates and controls the hoisting motor and various mechanisms to smoothly hoist the steel structure to the target position while maintaining balance.

[0027] In summary, this application includes at least one of the following beneficial effects;

[0028] 1. In this application, upon detecting a height difference, the system first initiates a coarse adjustment balancing phase. The control box commands the coarse adjustment motor at the lifting point with the largest height deviation to activate, driving the coarse adjustment roller to raise and lower the coarse adjustment rope. The coarse adjustment rope pulls the end of the lifting rope through a movable pulley system, thereby rapidly adjusting the overall height of the lifting point with double the speed and stroke efficiency, quickly correcting significant tilting of the steel structure. During this process, the sliding block, rigidly connected to the movable pulley, moves in a strictly linear motion along the sliding rail to prevent the entire lifting system from swaying, rigidly locking the position of the movable pulley and establishing a stable benchmark for the next operation. Finally, the control box scans the data from the laser rangefinder again to identify the millimeter-level residual height difference, and then activates the corresponding lifting point. The fine-tuning motor drives the worm gear, which in turn drives the worm wheel and fine-tuning roller to slowly raise and lower the fine-tuning rope. Since the fine-tuning rope acts directly on the lifting ring, this process can make precise micro-adjustments to the final height of the lifting ring until the steel structure is completely level. This achieves a fundamental leap in precision, changing the traditional outdated operation mode that relies on manual observation and adjustment. The leveling process is transformed into a precise digital control problem, ensuring a seamless connection of large steel structures. Under the unified command of the control box, all lifting points are synchronized and respond automatically, realizing intelligent collaboration and parallel operation between multiple mechanisms. This simplifies complex collaborative work into a 'one-click' operation, significantly shortening the lifting and leveling time and improving the overall construction efficiency.

[0029] 2. In this application, while the hoisting rope moves connecting block one, connecting block one moves connecting block two, connecting block two moves stabilizing block, stabilizing block moves supporting block, and supporting block moves limiting block on limiting rod. The limiting tooth groove on the limiting rod has an inclined surface facing the ground, allowing the limiting block to move upwards only in one direction. When leveling is completed, the limiting block is engaged in the limiting groove under the action of the return spring. After hoisting is completed, the control box controls the energization of the push-pull electromagnet through a relay, causing the push-pull electromagnet to retract the telescopic end, allowing the limiting block to disengage from the limiting groove on the limiting rod, and then begin to descend. This reduces the load on the coarse adjustment motor, further improves the stability of coarse adjustment, and provides a stable base point for subsequent fine adjustment operations, ensuring the accuracy of fine adjustment and the safety of the entire hoisting process. It achieves the purpose of energizing the limiting block to disengage from the limiting rod, facilitating the descent of the entire device.

[0030] 3. In this application, after the fine-tuning motor receives the instruction from the control box, it drives the worm gear to rotate, which in turn drives the worm wheel and fine-tuning roller to rotate slowly, thereby precisely winding and unwinding the fine-tuning rope. By utilizing the huge reduction ratio of the worm gear transmission, the high-speed rotation of the motor can be converted into the extremely low-speed, high-torque rotation of the fine-tuning roller, achieving extremely high adjustment accuracy. At the same time, the inherent reverse self-locking characteristic of the worm gear mechanism means that when the motor stops, the load cannot be reversed, ensuring reliable locking at any position without the need for an additional braking device, achieving both excellent accuracy and safety. Attached Figure Description

[0031] Figure 1 This is a first three-dimensional structural schematic diagram of the steel structure hoisting and balancing adjustment system for railway stations in this application;

[0032] Figure 2 This is a second three-dimensional structural schematic diagram of the steel structure hoisting and balancing adjustment system for railway stations in this application;

[0033] Figure 3 This is a schematic diagram of the first part of the disassembled structure of the steel structure hoisting and balancing adjustment system for railway stations in this application;

[0034] Figure 4 This is a schematic diagram of the second part of the disassembled structure of the steel structure hoisting and balancing adjustment system for railway stations in this application;

[0035] Figure 5 This application Figure 4 Enlarged diagram of point A in the middle.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Lifting frame; 2. Control box; 3. Connecting frame; 4. Support rod; 5. Coarse adjustment mechanism; 51. Coarse adjustment roller; 52. Support base two; 53. Coarse adjustment rope; 54. Moving pulley; 55. Auxiliary stabilizing component; 551. Stabilizing block; 552. Sliding rail; 553. Sliding block; 56. Limiting component; 561. Support block; 562. Limiting rod; 563. Limiting tooth groove; 564. Limiting block; 565. Support component; 5651. Push-pull electromagnet 5652. Return spring; 57. Coarse adjustment motor; 58. Fixed pulley two; 59. Connecting block one; 6. Fine adjustment mechanism; 61. Connecting block two; 62. Fine adjustment rope; 63. Fine adjustment block; 64. Fine adjustment assembly; 641. Fine adjustment motor; 642. Worm gear; 643. Worm; 644. Fine adjustment roller; 7. Lifting roller; 8. Lifting motor; 9. Lifting rope; 10. Lifting ring; 11. Support seat one; 12. Fixed pulley one; 13. Laser rangefinder. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0039] This application discloses a steel structure hoisting balance adjustment system and method for railway stations.

[0040] Reference Figure 1 , Figure 2 and Figure 3A steel structure hoisting and balancing adjustment system for a high-speed railway station includes a hoisting frame 1, a control box 2 installed on one side of the hoisting frame 1, four symmetrically arranged connecting frames 3 fixed to the top of the hoisting frame 1, support rods 4 fixed between adjacent connecting frames 3, fixed pulleys 12 rotatably connected to the support rods 4, a support seat 11 provided on one side of the hoisting frame 1, the support seat 11 fixed to the ground, a hoisting roller 7 rotatably connected to the support seat 11, a hoisting rope 9 wound on the hoisting roller 7, and the support seat 11... A hoisting motor 8 is fixed on one side of the control box 1. The output end of the hoisting motor 8 passes through the support base 11 and is fixedly connected to the hoisting roller 7. The hoisting rope 9 passes through the fixed pulley 12 and is connected to the fixed pulley 12 for transmission. A hoisting ring 10 is provided on the hoisting rope 9. A laser rangefinder 13 is fixed on the hoisting ring 10. A coarse adjustment mechanism 5 is provided between the hoisting rope 9 and the hoisting ring 10. A fine adjustment mechanism 6 is provided on the hoisting ring 10. The control box 2 is electrically connected to the hoisting motor 8 and the laser rangefinder 13.

[0041] The lifting frame 1 is typically welded from structural steel, possessing sufficient rigidity and strength to withstand the lifting load. An integrated control box 2 is prominently installed on one side of the lifting frame 1, housing a PLC, frequency converter, and human-machine interface. Four symmetrical connecting frames 3 are welded to the top four corners of the lifting frame 1. High-strength support rods 4 are erected between adjacent connecting frames 3, each support rod 4 having a fixed pulley 12 rotatably connected to it via a bearing seat. On the ground, a support base 11 is installed independently of the lifting frame 1, on which lifting rollers 7 are mounted via bearings. A high-power hoisting motor 8 directly drives the hoisting roller 7 to rotate via a coupling. A high-strength hoisting rope 9 is wound around the hoisting roller 7, then passes over a fixed pulley 12 and descends vertically. The end of the hoisting rope 9 is connected to a hoisting ring 10 via a coarse adjustment mechanism 5 and a fine adjustment mechanism 6. The hoisting ring 10 integrates a laser rangefinder 13 for real-time measurement of the distance from the hoisting ring 10 to the ground or an installed structure. During the construction of the railway station's steel structure, the steel structure is welded to the ground, and then corresponding hoisting frames 1 are built at the four corners of the steel structure. The hoisting ring 10 is then connected to the hoisting frame 1, allowing... The control boxes 2 on the four lifting frames 1 command the lifting motors 8 to operate, achieving the overall lifting and lowering of the steel structure. When the laser rangefinder 13 detects a shift in the steel structure, the lifting motors 8 stop working. The coarse adjustment mechanism 5 changes the length of the lifting rope 9, which in turn drives the lifting ring 10 to change its height. Then, the fine adjustment mechanism 6 further adjusts the height of the lifting ring 10. After adjustment, the lifting rope 9 is used to lift the steel structure. This is done in conjunction with multiple laser rangefinders 13 when the lifting roller 7 is used to wind up the lifting rope 9 to move the steel structure. Finally, the coarse adjustment mechanism 6 is used to further adjust the height of the lifting ring 10. Mechanism 5 and fine-tuning mechanism 6 are integrated together and make high-precision adjustments based on the values ​​of laser rangefinder 13. This changes the outdated operation mode that relies on manual observation and adjustment, transforming the leveling process into a precise digital control problem. This achieves a fundamental leap in precision, ensuring a tight fit between large steel structures. Under the unified command of control box 2, all lifting points are synchronized and respond automatically, realizing intelligent collaboration and parallel operation between multiple mechanisms. This simplifies complex collaborative work into a 'one-click' operation, significantly shortening the hoisting and leveling time and improving overall construction efficiency.

[0042] Reference Figure 2 , Figure 3 and Figure 4The coarse adjustment mechanism 5 includes a second support base 52 set on the ground, which is located on one side of the first support base 11. A coarse adjustment roller 51 is rotatably connected to the second support base 52. A coarse adjustment motor 57 is fixed on the second support base 52. The output end of the coarse adjustment motor 57 passes through the second support base 52 and is fixedly connected to the coarse adjustment roller 51. A coarse adjustment rope 53 is wound on the coarse adjustment roller 51 and is fixedly connected to the end of the hoisting rope 9. A second fixed pulley 58 is rotatably connected to the support rod 4. The coarse adjustment rope 53 is driven by the second fixed pulley 58. A movable pulley 54 is driven between the coarse adjustment rope 53 and the hoisting rope 9. A first connecting block 59 is fixed on the movable pulley 54. An auxiliary stabilizing component 55 is provided on the first connecting block 59. A limit component 56 is provided on one side of the first connecting block 59. The coarse adjustment motor 57 is electrically connected to the control box 2.

[0043] After the coarse adjustment rope 53 passes over the fixed pulley 58, it is threaded together with the hoisting rope 9 onto a movable pulley 54. A connecting block 59 is fixed on the shaft of the movable pulley 54. The connecting block 59 is connected to both the auxiliary stabilizing component 55 and the limiting component 56. By adjusting the forward and reverse rotation of the coarse adjustment motor 57, the control box 2 can raise and lower the coarse adjustment rope 53. Through the principle of the movable pulley 54 group, the height of the hoisting ring 10 can be significantly changed with twice the speed of the coarse adjustment rope 53. By adopting the principle of the movable pulley 54 group, the coarse adjustment mechanism 5 can achieve a wide range and rapid adjustment of the hoisting point position with a smaller motor power and rope raising and lowering stroke, which greatly improves the leveling efficiency. At the same time, this design separates the coarse adjustment function from the main hoisting mechanism, so that the main hoisting motor 8 only needs to be responsible for the overall lifting and lowering. The division of labor is clear and the system stability is higher.

[0044] Reference Figure 2 and Figure 3 The auxiliary stabilizing component 55 includes a sliding rail 552 fixed on the hoisting frame 1, a sliding block 553 slidably connected on the sliding rail 552, and a stabilizing block 551 fixed on the sliding block 553.

[0045] When the connecting block 59 is raised or lowered, the connecting block 59 drives the stabilizing block 551, the stabilizing block 551 drives the sliding block 553, and the sliding block 553 moves in the sliding rail 552. Through the cooperation of the sliding rail 552 and the sliding block 553, the movement of the movable pulley 54 is constrained from free swing to strict linear motion, thereby effectively preventing the swaying and twisting of the hoisting rope 9 and the load that may occur during the leveling process, and greatly enhancing the stability and safety of the system during the dynamic adjustment process.

[0046] Reference Figure 3 , Figure 4 and Figure 5The limiting component 56 includes a support block 561 fixed to one side of the stabilizing block 551. The support block 561 is L-shaped. A limiting rod 562 is fixed to one side of the sliding rail 552. The limiting rod 562 has several evenly distributed limiting grooves 563. A limiting block 564 is slidably connected to the support block 561. The limiting block 564 corresponds to the limiting grooves 563. A support member 565 is provided between the support block 561 and the limiting block 564.

[0047] When the hoisting rope 9 moves the connecting block 59, the connecting block 59 moves the support block 561, and the support block 561 moves the limiting block 564 on the limiting rod 562. The limiting groove 563 on the limiting rod 562 has an inclined surface facing the ground, so that the limiting block 564 can only move upward in one direction. When the leveling is completed, the support member 565 moves the limiting block 564, so that the limiting block 564 is locked on the limiting groove 563 on the limiting rod 562. This provides a purely mechanical rigid locking solution to resist displacement caused by external forces, thereby reducing the load on the coarse adjustment motor 57 and further improving the stability of coarse adjustment. At the same time, it provides a stable base point for subsequent fine adjustment operations, ensuring the fine adjustment accuracy and the safety of the entire hoisting process.

[0048] Reference Figure 4 and Figure 5 The support member 565 includes a push-pull electromagnet 5651 fixed on the support block 561. The telescopic end of the push-pull electromagnet 5651 is fixedly connected to the limit block 564. A reset spring 5652 is sleeved on the telescopic end of the push-pull electromagnet 5651.

[0049] When the support block 561 moves the limiting block 564 on the limiting rod 562, its preload causes the limiting block 564 to tend to disengage from the tooth groove when the electromagnet is de-energized. When the limiting tooth groove 563 aligns with the limiting block 564, the limiting block 564 is engaged in the limiting slot under the action of the return spring 5652. After hoisting is completed, the control box 2 controls the energization of the push-pull electromagnet 5651 through the relay, causing the push-pull electromagnet 5651 to retract the telescopic end, allowing the limiting block 564 to disengage from the limiting slot on the limiting rod 562, and then begins to descend. By using the push-pull electromagnet 5651 to drive the limiting block 564, it is possible to energize the limiting block 564 to disengage from the limiting rod 562, facilitating the descent of the entire device.

[0050] Reference Figure 2 , Figure 3 and Figure 4The fine-tuning mechanism 6 includes a second connecting block 61 fixed on the first connecting block 59, a fine-tuning block 63 fixed on the second connecting block 61, a fine-tuning rope 62 provided on the fine-tuning block 63, one end of the fine-tuning rope 62 being fixedly connected to the lifting ring 10, a fine-tuning component 64 being provided between the fine-tuning rope 62 and the fine-tuning block 63, and the second connecting block 61 being fixedly connected to the stabilizing block 551.

[0051] Connecting block 2 61 is fixed on connecting block 1 59. Fine adjustment block 63 is installed on connecting block 2 61. One end of a high-strength fine adjustment rope 62 is fixed on the lifting ring 10, and the other end is wound around the fine adjustment component 64 inside the fine adjustment block 63. Connecting block 2 61 is also fixed to the stabilizing block 551, thereby suspending the entire fine adjustment mechanism 6 on the locked stable structure and preventing direct contact with the swaying lifting rope 9. By decoupling the fine adjustment mechanism 6 from the coarse adjustment mechanism 5 and installing it on a stable support structure, the fine adjustment operation is ensured to be unaffected by the swaying of the main lifting rope 9 and the coarse adjustment mechanism 5, creating ideal working conditions for achieving millimeter-level or even higher precision adjustments.

[0052] Reference Figure 3 and Figure 4 The fine-tuning component 64 includes a worm gear 643 rotatably connected within the fine-tuning block 63, a worm wheel 642 drivingly connected to the worm gear 643, the worm wheel 642 rotatably connected to the fine-tuning block 63, a fine-tuning roller 644 fixed to one side of the worm wheel 642, the fine-tuning roller 644 rotatably connected to the fine-tuning block 63, a fine-tuning rope 62 wound around the fine-tuning roller 644, a fine-tuning motor 641 fixed to one side of the fine-tuning block 63, the output end of the fine-tuning motor 641 fixedly connected to the worm gear 643, and the fine-tuning motor 641 electrically connected to the control box 2.

[0053] When the fine-tuning motor 641 receives the command from the control box 2, it drives the worm gear 643 to rotate, which in turn drives the worm wheel 642 and the fine-tuning roller 644 to rotate slowly. This allows for precise winding and unwinding of the fine-tuning rope 62, ultimately achieving micron-level precision control over the height of the lifting ring 10. By utilizing the huge reduction ratio of the worm wheel 642 and worm gear 643 transmission, the high-speed rotation of the motor can be converted into the extremely low-speed, high-torque rotation of the fine-tuning roller 644, thereby achieving extremely high adjustment accuracy. At the same time, the inherent reverse self-locking characteristic of the worm wheel 642 and worm gear 643 mechanism means that when the motor stops, the load cannot be reversed, ensuring reliable locking at any position without the need for an additional braking device, resulting in excellent precision and safety.

[0054] A method for balancing and adjusting the hoisting of steel structures in high-speed railway stations, the method being as follows:

[0055] S1: Initial hoisting, start the hoisting motor 8, release the hoisting rope 9 through the hoisting roller 7, so that the hoisting ring 10 is lowered and connected to the steel structure of the railway station for initial lifting;

[0056] S2: Coarse adjustment balance. The height of each lifting point of the steel structure is monitored by the laser rangefinder 13. The control box 2 starts the coarse adjustment motor 57 of the coarse adjustment mechanism 5, drives the coarse adjustment rope 53 to be wound and released, and changes the effective length of the lifting rope 9 through the movable pulley 54 to make preliminary correction of the tilt of the steel structure.

[0057] S3: Position locking. After coarse adjustment, the control box 2 activates the push-pull electromagnet 5651 of the limit component 56, which pushes the limit block 564 into the tooth groove of the limit rod 562, mechanically locking the position of the movable pulley 54.

[0058] S4: Fine-tuning balance. The control box 2 starts the fine-tuning motor 641 of the fine-tuning mechanism 6, which drives the worm wheel 642 and the fine-tuning roller 644 through the worm 643 to slowly raise and lower the fine-tuning rope 62, so as to make millimeter-level precise fine-tuning of the final height of the hoisting ring 10 to ensure the overall level of the steel structure.

[0059] S5: Coordinated positioning. The control box 2 coordinates and controls the hoisting motor 8 and various mechanisms to smoothly hoist the steel structure to the target position while maintaining balance.

[0060] Working principle: The entire system begins with the hoisting motor 8 driving the hoisting roller 7 to rotate, releasing the hoisting rope 9, causing the hoisting ring 10 at the end to descend and connect with the steel structure of the railway station. Subsequently, the hoisting motor 8 reverses, lifting the entire steel structure to a suspended state off the ground. At this time, the laser rangefinder 13 installed on each hoisting ring 10 starts working, continuously sending precise distance data between itself and the ground or reference point to the control box 2. The control box 2 compares the data from the four hoisting points in real time and automatically calculates the real-time attitude and horizontal deviation of the steel structure.

[0061] When a height difference is detected, the system first initiates the coarse adjustment balancing stage. The control box 2 instructs the coarse adjustment motor 57 of the lifting point with a large height deviation to activate, driving the coarse adjustment roller 51 to raise and lower the coarse adjustment rope 53. The coarse adjustment rope 53 pulls the end of the lifting rope 9 through the set of movable pulleys 54, thereby quickly adjusting the overall height of the lifting point with double the speed and stroke efficiency, and rapidly correcting the significant tilt of the steel structure. During this process, the sliding block 553, which is rigidly connected to the movable pulley 54, moves strictly in a straight line along the sliding rail 552 to prevent the entire suspension system from shaking. After all the lifting points are coarsely adjusted to be approximately horizontal, the control limit block 564 engages in the tooth groove of the limit rod 562, rigidly locking the position of the movable pulley 54, and establishing a stable benchmark for the next operation.

[0062] Finally, the system enters the fine-tuning balance and coordinated positioning stage. The control box 2 scans the data of the laser rangefinder 13 again to identify the residual height difference at the millimeter level. Then, it starts the fine-tuning motor 641 of the corresponding lifting point, which drives the worm gear 643 to drive the worm wheel 642 and the fine-tuning roller 644 to slowly raise and lower the fine-tuning rope 62. Since the fine-tuning rope 62 acts directly on the lifting ring 10, this process can make fine micro-movements to the final height of the lifting ring 10 until the steel structure reaches a completely horizontal position.

Claims

1. A steel structure hoisting and balancing adjustment system for railway stations, comprising a hoisting frame (1), characterized in that: A control box (2) is installed on one side of the hoisting frame (1). Four symmetrical connecting frames (3) are fixed on the top of the hoisting frame (1). Support rods (4) are fixed between adjacent connecting frames (3). A fixed pulley (12) is rotatably connected to the support rod (4). A support seat (11) is provided on one side of the hoisting frame (1). The support seat (11) is fixed to the ground. A hoisting roller (7) is rotatably connected to the support seat (11). A hoisting rope (9) is wound on the hoisting roller (7). A hoisting motor (8) is fixed on one side of the support seat (11). The output end of the hoisting motor (8) passes through the support base (11) and is fixedly connected to the hoisting roller (7). The hoisting rope (9) passes through the fixed pulley (12) and is connected to the fixed pulley (12) in a transmission manner. A hoisting ring (10) is provided on the hoisting rope (9). A laser rangefinder (13) is fixed on the hoisting ring (10). A coarse adjustment mechanism (5) is provided between the hoisting rope (9) and the hoisting ring (10). A fine adjustment mechanism (6) is provided on the hoisting ring (10). The control box (2) is electrically connected to the hoisting motor (8) and the laser rangefinder (13).

2. The steel structure hoisting and balancing adjustment system for a high-speed railway station according to claim 1, characterized in that: The coarse adjustment mechanism (5) includes a second support base (52) set on the ground. The second support base (52) is located on one side of the first support base (11). A coarse adjustment roller (51) is rotatably connected to the second support base (52). A coarse adjustment motor (57) is fixed on the second support base (52). The output end of the coarse adjustment motor (57) passes through the second support base (52) and is fixedly connected to the coarse adjustment roller (51). A coarse adjustment rope (53) is wound on the coarse adjustment roller (51). The end of the coarse adjustment rope (53) is connected to the end of the hoisting rope (9). The head is fixedly connected, and a fixed pulley two (58) is rotatably connected to the support rod (4). The coarse adjustment rope (53) is connected to the fixed pulley two (58) in a transmission manner. A movable pulley (54) is connected between the coarse adjustment rope (53) and the hoisting rope (9). A connecting block one (59) is fixed on the movable pulley (54). An auxiliary stabilizing component (55) is provided on the connecting block one (59). A limit component (56) is provided on one side of the connecting block one (59). The coarse adjustment motor (57) is electrically connected to the control box (2).

3. The steel structure hoisting and balancing adjustment system for a high-speed railway station according to claim 2, characterized in that: The auxiliary stabilizing component (55) includes a sliding rail (552) fixed on the hoisting frame (1), a sliding block (553) slidably connected on the sliding rail (552), and a stabilizing block (551) fixed on the sliding block (553).

4. The steel structure hoisting and balancing adjustment system for a high-speed railway station according to claim 3, characterized in that: The limiting component (56) includes a support block (561) fixed to one side of the stabilizing block (551). The support block (561) is L-shaped. A limiting rod (562) is fixed to one side of the sliding rail (552). The limiting rod (562) has several evenly distributed limiting tooth grooves (563). A limiting block (564) is slidably connected to the support block (561). The limiting block (564) corresponds to the limiting tooth grooves (563). A support member (565) is provided between the support block (561) and the limiting block (564).

5. The steel structure hoisting and balancing adjustment system for a high-speed railway station according to claim 4, characterized in that: The support member (565) includes a push-pull electromagnet (5651) fixed on the support block (561). The telescopic end of the push-pull electromagnet (5651) is fixedly connected to the limiting block (564). A reset spring (5652) is sleeved on the telescopic end of the push-pull electromagnet (5651).

6. The steel structure hoisting and balancing adjustment system for a high-speed railway station according to claim 2, characterized in that: The fine-tuning mechanism (6) includes a second connecting block (61) fixed on a first connecting block (59), a fine-tuning block (63) fixed on the second connecting block (61), a fine-tuning rope (62) provided on the fine-tuning block (63), one end of the fine-tuning rope (62) being fixedly connected to a lifting ring (10), a fine-tuning component (64) being provided between the fine-tuning rope (62) and the fine-tuning block (63), and the second connecting block (61) being fixedly connected to a stabilizing block (551).

7. The steel structure hoisting and balancing adjustment system for a high-speed railway station according to claim 6, characterized in that: The fine-tuning assembly (64) includes a worm gear (643) rotatably connected within the fine-tuning block (63), a worm wheel (642) being drivenly connected to the worm gear (643), the worm wheel (642) being rotatably connected to the fine-tuning block (63), a fine-tuning roller (644) being fixed to one side of the worm wheel (642), the fine-tuning roller (644) being rotatably connected to the fine-tuning block (63), the fine-tuning rope (62) being wound around the fine-tuning roller (644), a fine-tuning motor (641) being fixed to one side of the fine-tuning block (63), the output end of the fine-tuning motor (641) being fixedly connected to the worm gear (643), and the fine-tuning motor (641) being electrically connected to the control box (2).

8. A method for balancing and adjusting the hoisting of steel structures in high-speed railway stations, characterized in that: This method is applicable to any one of the hoisting and balancing adjustment systems for high-speed railway steel structures according to claims 1-7 above, and the method is as follows: S1: Initial hoisting, start the hoisting motor (8), release the hoisting rope (9) through the hoisting roller (7), so that the hoisting ring (10) descends and connects to the steel structure of the train station for initial lifting; S2: Coarse adjustment balance, monitor the height of each lifting point of the steel structure by laser rangefinder (13), start the coarse adjustment motor (57) of the coarse adjustment mechanism (5) by control box (2), drive the coarse adjustment rope (53) to be wound and released, change the effective length of the lifting rope (9) by moving pulley (54), and make preliminary correction of the tilt of the steel structure; S3: Position locking. After the coarse adjustment is completed, the control box (2) starts the push-pull electromagnet (5651) of the limit assembly (56), pushes the limit block (564) into the tooth groove of the limit rod (562), and mechanically locks the position of the movable pulley (54). S4: Fine-tuning balance, the control box (2) starts the fine-tuning motor (641) of the fine-tuning mechanism (6), and drives the worm wheel (642) and fine-tuning roller (644) through the worm (643) to slowly raise and lower the fine-tuning rope (62) to make millimeter-level precise fine-tuning of the final height of the hoisting ring (10) to ensure the overall level of the steel structure; S5: Coordinated positioning, the control box (2) coordinates the hoisting motor (8) and various mechanisms to smoothly hoist the steel structure to the target position while maintaining balance.

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