A turntable platform for vehicle turning within a tunnel and a method of using the same

Abstract

The application discloses a rotary platform for vehicle turning in a tunnel and a use method thereof, which comprises a rotary platform body, a vehicle frame assembly, a gear transmission rotary platform assembly arranged on the vehicle frame assembly, a buffer device and a balance adjusting device arranged below the rotary platform assembly, a driving device comprising a rotary driving system and a steering and advancing driving system, wherein the rotary driving system is connected with the rotary platform assembly, and the steering and advancing driving system is arranged on the vehicle frame assembly, and a leading bridge comprising a slope plate arranged at both ends of the vehicle frame assembly and an inclined slope plate telescopic oil cylinder arranged between the slope plate and the vehicle frame assembly. The application has the advantages of realizing accurate and stable turning of the vehicle in the tunnel, and adjusting and supporting in real time to prevent the rotary platform from tilting and the transmission gear from being out of gear and being hit.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing and tunnel construction equipment technology, and more specifically, to a rotating platform for turning vehicles in a tunnel and its usage method. Background Technology

[0002] Currently, tunnel construction is increasing, and tunnels are becoming longer. Modern construction is largely mechanized, with large quantities of construction equipment and building materials being transported into tunnels by various vehicles. However, due to the small cross-section of the tunnel, poor lighting, and the lack of passing bays in tunnel design, the space inside the tunnel cannot meet the requirements for vehicle turning around. This makes it difficult for transport vehicles to turn around and exit after entering the tunnel. Furthermore, the confined space inside the tunnel, coupled with the large amount of construction equipment and building materials, means that construction vehicles must make multiple turns when they need to turn around, making them prone to collisions with construction equipment inside the tunnel. This causes unnecessary damage to both the equipment and the vehicles themselves, and in severe cases, irreversible damage to the tunnel cross-section. At the same time, forced turning around is time-consuming, increasing fuel consumption and polluting the environment. Large amounts of exhaust emissions make the air inside the narrow tunnel extremely polluted, and the already very low visibility inside the tunnel further impairs the vision of vehicle operators and poses safety hazards to other construction workers, seriously affecting their physical and mental health. In addition, when facing excessively long tunnels, this slows down the construction progress and further increases safety hazards. Currently, there is no ideal auxiliary turning device for construction vehicles in tunnel construction.

[0003] When rotating using gear transmission, the uneven force distribution can occur when the vehicle moves from the approach bridge to the middle of the rotating platform, which can easily cause the rotating platform to tilt. Tilting of the rotating platform can cause misalignment or breakage of the transmission gears, thereby damaging the transmission system.

[0004] In summary, vehicles cannot make precise and convenient U-turns inside tunnels. When U-turns are achieved using gear transmission, uneven force occurs when the vehicle travels from the approach bridge to the middle of the rotating platform, which can easily cause the rotating platform to tilt. This tilting can lead to misalignment or breakage of the transmission gears, thereby damaging the transmission system. Summary of the Invention

[0005] The main objective of this invention is to provide a rotating platform for vehicle turning in tunnels, in order to solve the problem that in the prior art, vehicles cannot accurately and conveniently turn around in tunnels. When turning around is done by rotating with gear transmission, the uneven force will occur when the vehicle moves from the approach bridge to the middle position of the rotating platform, which will easily cause the rotating platform to tilt. The tilting of the rotating platform will cause the transmission gears to misalign or break, thereby damaging the transmission system.

[0006] To achieve the above objectives, according to one aspect of the present invention, a rotating platform for vehicle turning around in a tunnel is provided, comprising:

[0007] The main body of the rotating platform has a frame assembly welded component, on which a gear-driven rotating platform assembly welded component is provided, and a buffer device and a balance adjustment device are provided below the rotating platform assembly welded component;

[0008] The drive unit includes a rotary drive system and a steering forward drive system, wherein the rotary drive system is connected to the rotary platform assembly, and the steering forward drive system is mounted on the chassis assembly.

[0009] The approach bridge includes ramps, which are disposed at both ends of the frame assembly welded components. Inclined ramp telescopic cylinders are provided between the ramps and the frame assembly welded components.

[0010] Preferably, the rotary drive system includes an internal five-star motor, a cylindrical internal gear connected to the shaft of the internal five-star motor, a gear disc sleeve fitted to the cylindrical internal gear, and the gear disc sleeve connected to a rotary bearing.

[0011] Preferably, the steering system includes a front wheel assembly and a rear wheel assembly, which are respectively disposed at both ends of the frame assembly welded component. The front wheel assembly includes a front wheel, which is connected to a steering rod, which is connected to a steering cylinder.

[0012] Preferably, the lower end of the frame assembly is provided with a frame support cylinder, and the upper end of the rotating platform assembly is provided with an operating handle.

[0013] Preferably, the buffer device includes a tray, and a tray support cylinder is provided at the lower end of the tray, the tray cylinder being mounted on the tray frame base.

[0014] Preferably, the pallet frame is provided with a balance adjustment device at its lower end. The balance adjustment device includes a fixed plate, a support column at the lower end of the fixed plate, a support plate at the lower end of the support column, a motor between the support plate and the fixed plate, a screw connected to the lower end of the motor, a guide rod at the lower end of the support plate, an adjusting member sleeved on the guide rod, the adjusting member cooperating with the screw, a first clamping member at the lower end of the adjusting member clamping a first roller, a wheel frame fixedly connected to the lower end of the guide rod, a second clamping member, a first distance sensor and a through hole on the wheel frame, a second roller on the second clamping member, and a second distance sensor at the lower end of the adjusting member, the second distance sensor being arranged opposite to the through hole.

[0015] Preferably, the adjusting component includes a guide block with a guide hole, the guide block being sleeved on the guide rod through the guide hole, a threaded cylinder being provided at one end of the adjusting component near the screw, and threads cooperating with the screw being provided in the adjusting component and the threaded cylinder, and the motor shaft cooperating with the support plate through a rotary bearing.

[0016] Preferably, the balance adjustment device is located at the lower end of the rotating platform assembly, between the rotating platform assembly and the frame assembly, and a rolling plate is provided on the frame assembly.

[0017] Preferably, the motor drives the screw to rotate, the screw drives the adjusting member to move along the guide rod through the threaded transmission, the adjusting member drives the first clamping member to move, the first clamping member drives the first roller to extend or retract from the wheel frame, and the first distance sensor and the second sensor cooperate to detect the distance between the second roller and the first roller and the rolling plate set on the frame assembly welded component.

[0018] According to another aspect of the present invention, a method of using a rotating platform for vehicle turning in a tunnel is provided, comprising:

[0019] Step 1: The vehicle travels from the approach bridge to the rotating platform column. During the process of the vehicle traveling from the approach bridge to the rotating platform column, the buffer device and the balance adjustment device work together to ensure that the rotating platform column is level and balanced.

[0020] Step 2: The rotating platform assembly is rotated by the rotating drive system to turn the vehicle around. During the rotation, the rotating platform is kept level and balanced by the balance adjustment device.

[0021] By applying the technical solution of this invention, a rotary drive system drives the welded components of a rotating platform to rotate, enabling vehicle turning. During rotation, a balance adjustment device ensures the level and balance of the rotating platform. The vehicle reaches the rotating platform column via an approach bridge. During the vehicle's journey from the approach bridge to the rotating platform column, a buffer device and a balance adjustment device work together to ensure the level and balance of the rotating platform column. This method offers the advantages of enabling precise and smooth vehicle turning within tunnels and real-time adjustment of the support balance to prevent the rotating platform from tilting and causing gear misalignment or damage. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0023] Figure 1 A schematic diagram of the structure of a rotating platform for vehicle turning in a tunnel according to the present invention is shown;

[0024] Figure 2 It shows Figure 1 A top view of the rotating platform used for vehicle turning around in the tunnel;

[0025] Figure 3 It shows Figure 1 A cross-sectional view of a rotating platform used for vehicle turning around in a tunnel.

[0026] Figure 4 It shows Figure 1 A structural view of the front wheel end of the rotating platform used for vehicle turning in the tunnel;

[0027] Figure 5 It shows Figure 1 A structural view of the drive system of the rotating platform used for vehicle turning around in the tunnel.

[0028] Figure 6 It shows Figure 1 A partial top view of the rear wheel end of the rotating platform used for vehicle turning in the tunnel;

[0029] Figure 7 It shows Figure 1 A partial top view of the front wheel end of the rotating platform used for vehicle turning in the tunnel;

[0030] Figure 8 It shows Figure 1 A partial view of the location of the buffer structure of the rotating platform used for vehicle turning around in the tunnel.

[0031] Figure 9 It shows Figure 1 A structural view of the balance adjustment device of the rotating platform used for vehicle turning in the tunnel.

[0032] Figure 10 It shows Figure 9 The main view of the balance adjustment device of the rotating platform used for vehicle turning in the tunnel.

[0033] Figure 11 It shows Figure 9 Left view of the balance adjustment device of the rotating platform used for vehicle turning in the tunnel.

[0034] Figure 12 It shows Figure 9 A top view of the balance adjustment device of the rotating platform used for vehicle turning around in the tunnel.

[0035] Figure 13 It shows Figure 9 A bottom view of the balance adjustment device of the rotating platform used for vehicle turning in the tunnel.

[0036] Figure 14 It shows Figure 9 The right view of the balance adjustment device of the rotating platform used for vehicle turning around in the tunnel.

[0037] The above figures include the following reference numerals:

[0038] 1. Frame assembly welded component; 2. Front wheel assembly; 3. Rear wheel assembly; 4. Internal five-star motor; 5. Cylindrical internal gear; 6. Slewing bearing; 7. Rotating platform assembly welded component; 8. Slope plate; 9. Slope plate telescopic cylinder; 10. Pallet support cylinder; 11. Frame support cylinder; 12. Steering cylinder; 13. Steering link; 14. Rocker pin; 15. Steering link pin; 16. Slope plate pin; 17. Rear wheel tire; 18. Front wheel tire; 19. Pallet frame seat; 20. Rotating platform bearing seat; 21. Operating handle; 22. Balance adjustment device; 23. Fixing plate; 24. Support column; 25. Support plate; 26. Screw; 27. Guide block; 28. Adjusting component; 29. ​​Guide rod; 30. Wheel frame; 31. First clamping component; 32. Through hole; 33. First roller; 34. Second roller; 35. Second clamping component; 36. First distance sensor; 37. Second distance sensor; 38. Threaded cylinder; 39. Motor. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] like Figures 1 to 14 As shown, this embodiment of the invention provides a rotating platform for vehicle turning in a tunnel, including a rotating platform body with a frame welded component 1. A gear-driven rotating platform welded component 7 is mounted on the frame welded component 1. A buffer device and a balance adjustment device 22 are located below the rotating platform welded component 7. A drive device includes a rotating drive system and a steering forward drive system, wherein the rotating drive system is connected to the rotating platform welded component 7, and the steering forward drive system is mounted on the frame welded component 1. An approach bridge includes ramps 8, which are located at both ends of the frame welded component 1. An inclined ramp telescopic cylinder 9 is provided between the ramps 8 and the frame welded component 1. The buffer device includes a tray, with a tray support cylinder 10 at the lower end of the tray, which is mounted on a tray frame base 19. This invention features a simple structure, reasonable design, and strong practicality. The rotating platform assembly 7 is rotatably connected to the chassis assembly 1 via a rotating drive system. Only the rotating platform assembly 7 and the rotating drive system rotate, ensuring overall structural stability. The steering and forward drive system can easily lift the main bridge body off the ground and move forward with the construction process, meeting the needs of vehicles turning around in tunnels during long-distance construction. As the vehicle moves forward with the construction process, there will be no misalignment between the components, ensuring the long-term stable rotation of the rotating platform, reducing maintenance frequency, and improving construction efficiency.

[0041] In this embodiment, the main body of the rotating platform and the rotating platform column serve to support and rotate the vehicle to turn around. It includes a frame assembly 1, which mainly supports and fixes other components. A gear-driven rotating platform assembly 7 is mounted on the frame assembly 1. This gear-driven rotating platform assembly is used to drive the vehicle to turn around through rotation. A buffer device and a balance adjustment device 22 are located below the rotating platform assembly 7. The buffer device and balance adjustment device 22 are used to dynamically adjust the balance of the rotating platform in real time, preventing the rotating platform from tilting and causing misalignment or gear breakage in the transmission gears. A frame support cylinder 11 is located at the lower end of the frame assembly 1, which supports the frame. An operating handle 21 is located at the upper end of the rotating platform assembly 7, which is used to operate the rotation to achieve vehicle turning. Specifically, when a vehicle passes over, the pallet support cylinder 10 on the frame assembly 1 extends, providing a certain buffering effect when the vehicle drives onto the rotating platform from both ends of the ramp, and providing some protection against damage to the rotating gears. When a vehicle needs to turn inside the tunnel, the pallet support cylinder 10 retracts, and the hydraulic motor (internal five-star motor 4) provides power to rotate the slewing bearing 6 via gear transmission, thereby driving the rotating platform to rotate. There are four pallet support cylinders 10, evenly distributed on both sides of the chassis assembly 1 connecting to the front and rear approach axles. When a vehicle drives onto the platform from the approach axle, the support cylinders provide support under the rotating platform assembly 7, reducing the impact of the vehicle on the gear pair rotation system and increasing its service life. There is an operating handle 21 on each side of the rotating platform. Its function is to allow the driver to control the rotation of the platform when the vehicle drives onto it. The hydraulic system of the rotating platform uses a servo motor 39 to control the oil flow. Its function is to allow for fine-tuning of the servo motor 39 during vehicle rotation, precisely controlling the speed to avoid instability or rollover caused by uneven speed. The rotating platform assembly 7 is equipped with four M42 lifting bolts for easy disassembly, transportation, and on-site assembly. The main function of the rotating platform is to use the power output of the hydraulic motor to rotate the internal meshing gear pair, thereby driving the main body of the rotating platform to rotate and achieve the purpose of steering. Its slewing bearing 6 is connected to the rotating platform by welding through the gear disc sleeve.

[0042] In this embodiment, the drive device, used to drive the rotating platform assembly to rotate, thereby realizing vehicle turning, includes a rotation drive system and a steering forward drive system. The rotation drive system is connected to the rotating platform welded assembly 7, and drives the rotating platform welded assembly 7 to rotate. The steering forward drive system is mounted on the frame welded assembly 1, and realizes the forward movement and steering of the vehicle. The rotation drive system includes an internal five-star motor 4, with a cylindrical internal gear 5 connected to the shaft of the internal five-star motor 4. The cylindrical internal gear 5 is fitted with a gear disc sleeve (external gear), and the gear disc sleeve is connected to a slewing bearing 6. The five-star motor drives the internal gear to rotate, the internal gear drives the gear disc sleeve to rotate, the gear disc sleeve drives the slewing bearing 6 to rotate, and the slewing bearing 6 drives the rotating platform assembly to rotate. The rotating platform assembly drives the vehicle to turn. The steering system includes a front wheel assembly 2 and a rear wheel assembly 3, which are respectively located at both ends of the frame welded assembly 1. The front wheel assembly 2 includes a front wheel, which is connected to a steering rod, and the steering rod is connected to a steering cylinder 12. The steering cylinder 12 drives the steering rod to move, and the movement of the steering rod drives the front wheel to rotate, thus achieving steering. The rotary drive system is set between the frame assembly welded part 1 and the rotary platform assembly welded part 7. The hydraulic motor of the rotary drive system drives the internal gear to rotate, thereby driving the external gear to rotate. The drive device includes a front wheel steering mechanism and a rear wheel drive system. When the front wheel encounters a curve, it can be steered to a certain extent by the steering mechanism. The rear wheel is driven by two hydraulic motors.

[0043] In this embodiment, the approach bridge includes ramps 8, which are located at both ends of the frame assembly 1. Inclined ramp telescopic cylinders 9 are installed between the ramps 8 and the frame assembly 1. When the vehicle moves forward, the approach bridge is raised by the cylinders, the frame support cylinders 11 retract to bring the wheels to the ground, and the entire platform is driven forward by a hydraulic motor. To handle certain curvatures, a steering mechanism is installed on the front wheels of the platform to facilitate overall steering and meet the needs of vehicle turning around in tunnels during long-distance construction. The approach bridge allows vehicles to travel from the horizontal ground to a rotating platform at a certain height. The ramps are raised and lowered by the ramp telescopic cylinders. When lowering, the ramps allow the vehicle to travel along the ramps to the rotating platform; when raising, they drive the entire device forward, preventing contact with the ground. The inclined ramp telescopic cylinders 9 provide more precise adjustment, preventing the ramps 8 from rising or falling too much with slight extension or contraction.

[0044] In this embodiment, a balance adjustment device 22 is provided at the lower end of the pallet frame. The balance adjustment device 22 includes a fixed plate 23, which is connected to the rotating platform assembly 7. The fixed plate 23 has threaded holes for bolt connection. A support column 24 is provided at the lower end of the fixed plate 23 to support the fixed plate 23 and the support plate 25. The support plate 25 is provided at the lower end of the support column 24 to support the motor 39. The support plate 25 is connected to the motor 39 shaft through a rotation axis. The motor 39 is located between the support plate 25 and the fixed plate 23. The motor 39 is connected to the control... The controller connects to the motor 39, which is rotated in real time to provide the power for adjustment. A screw 26 is connected to the lower end of the motor 39, driving the screw 26 for more precise adjustment. A guide rod 29 is provided at the lower end of the support plate 25 to guide the adjustment block. An adjustment element 28 is fitted onto the guide rod 29 to adjust the first roller 33. The adjustment element 28 cooperates with the screw 26, moving and adjusting with high precision. A first clamp is provided at the lower end of the adjustment element 28. Part 31, the first clamping part 31 is used to clamp and limit the first roller 33. The first clamping part 31 clamps the first roller 33. After the first roller 33 is adjusted and supported, it rolls on the rolling plate, thereby ensuring the smooth rotation of the rotating platform after the adjustment and support. The lower end of the guide rod 29 is fixedly connected to the wheel frame 30. The wheel frame 30 is used to fix and support the second roller 34. The wheel frame 30 is provided with a second clamping part 35, a first distance sensor 36 and a through hole 32. The second clamping part 35 is used to support and limit the second roller 34. The first distance sensor 36 is used to detect the distance between the wheel frame 30 and the roller plate in real time, and to promptly sense the rotation of the platform. If the platform tilts, the balance is immediately adjusted by the balance adjustment device 22 when the tilt reaches a threshold. The second clamping member 35 is equipped with a second roller 34, which supports and assists the rotation of the rotating platform. The lower end of the adjusting member 28 is equipped with a second distance sensor 37, which is used for real-time detection. The adjusting member 28 drives the first roller 33 to move the distance from the rolling plate. The second distance sensor 37 is set opposite to the through hole 32. The second distance sensor 37 can be an infrared distance sensor. The second distance sensor 37 senses the distance from the rolling plate by passing through the through hole 32. The adjusting component 28 includes a guide block 27, which cooperates with the guide rod 29 to move along the guide rod 29. The guide block 27 is provided with a guide hole and a wire hole to cooperate with the guide rod 29. The guide block 27 is sleeved on the guide rod 29 through the guide hole. The end of the adjusting component 28 near the screw 26 is provided with a threaded cylinder 38, which cooperates with the screw 26 to achieve threaded transmission. The adjusting component 28 and the threaded cylinder 38 are provided with threads that cooperate with the screw 26 to achieve threaded rotation. The motor 39 shaft cooperates with the support plate 25 through a rotating bearing to achieve smooth rotation.The balance adjustment device 22 is located at the lower end of the rotating platform assembly 7, between the rotating platform assembly 7 and the frame assembly 1. A rolling plate is installed on the frame assembly 1, facilitating the adjustment and support of the lower end of the balance adjustment device 22 and its smooth rotation with the rotating platform. The motor 39 drives the screw 26 to rotate, and the screw 26, through threaded transmission, drives the adjusting member 28 to move along the guide rod 29. The adjusting member 28 drives the first clamping member 31 to move, and the first clamping member 31 drives the first roller 33 to extend or retract from the wheel frame 30. The first distance sensor 36 and the second sensor work together to detect the distance between the second roller 34 and the first roller 33 and the rolling plate installed on the frame assembly 1. Simultaneously, a buffer device provides both buffering and adjustment to ensure that the gear transmission does not misalign or grind. Furthermore, the support and rolling of the second roller 34, along with its real-time fine-tuning, ensures that the gear transmission does not misalign or grind.

[0045] A balance adjustment device 22 is installed at the lower end of the support frame of the rotating platform assembly 7, either near the slewing bearing 6 or at a certain distance from it. A rolling plate is installed below the running trajectory of the balance adjustment device 22. A first distance sensor 36 detects the distance between the wheel frame 30 and the rolling plate in real time. When the distance between the wheel frame 30 and the rolling plate on one side gradually increases, a distance threshold is set. When the distance exceeds the threshold, the controller controls the motor 39 of the balance adjustment device 22 on the opposite side to rotate. The rotation of the motor 39 drives the screw 26 to rotate, which in turn moves the threaded cylinder 38. The movement of the threaded cylinder 38 causes the guide block 27 of the adjusting component 28 to move along the guide rod 29. The adjusting component 28 then moves the first clamping component 31 and the first roller 33 on it. The wheel frame 30 is used, and the distance between the lower end of the adjusting component 28 and the roller plate is detected in real time by the second distance sensor 37. After adjustment, the balance adjusting device 22 supports the height corresponding to the threshold, thereby ensuring that the rotating platform maintains balance. The threshold is dynamically adjusted based on the limit value that the tilt angle of the rotating platform will cause gear misalignment or tooth breakage. The level of the rotating platform is dynamically adjusted in real time by the balance adjusting device 22. When it is raised once, the opposite side is immediately dynamically adjusted and supported, thereby ensuring the level and balance of the rotating platform. At the same time, the buffer device achieves buffering and adjustment to ensure that the gear transmission will not misalign or break. The second roller 34 supports and rolls, and the second roller 34 is fine-tuned in real time to reduce problems such as gear misalignment, tooth breakage, and wear caused by the tilt of the rotating platform.

[0046] Another embodiment of the present invention provides a method for using a rotating platform for turning vehicles in a tunnel.

[0047] Step 1: The vehicle travels from the approach bridge to the rotating platform column. During the journey from the approach bridge to the rotating platform column, the buffer device and the balance adjustment device 22 work together to ensure the horizontality and balance of the rotating platform column. Step 2: The rotating drive system drives the rotating platform assembly 7 to rotate, enabling the vehicle to turn around. During the rotation, the balance adjustment device 22 ensures the horizontality and balance of the rotating platform. Specifically, a balance adjustment device 22 is installed at the lower end of the support frame of the rotating platform assembly 7, either near the slewing bearing 6 or at a certain distance from it. A rolling plate is installed below the running trajectory of the balance adjustment device 22. A first distance sensor 36 detects the distance between the wheel frame 30 and the rolling plate in real time. When the distance between the wheel frame 30 and the rolling plate on one side gradually increases, a distance threshold is set. When the distance exceeds the threshold, the controller controls the motor 39 of the balance adjustment device 22 on the opposite side to rotate. The rotation of the motor 39 drives the screw 26 to rotate, which in turn moves the threaded cylinder 38. The movement of the threaded cylinder 38 causes the guide block 27 of the adjusting component 28 to move along the guide rod 29. The adjusting component 28 then moves the first clamping component 31 and the first roller 33 on the first clamping component 31. The wheel frame 30 is moved, and the distance between the lower end of the adjusting component 28 and the roller plate is detected in real time by the second distance sensor 37. This allows the balance adjusting device 22 to support the platform at a height corresponding to the threshold, thereby ensuring the balance of the rotating platform. The threshold is dynamically adjusted based on the limit value that the tilt angle of the rotating platform would cause gear misalignment or tooth breakage. The level of the rotating platform is dynamically adjusted in real time by the balance adjusting device 22. When the platform is raised, the opposite side is immediately dynamically adjusted and supported, thereby ensuring the level and balance of the rotating platform. At the same time, the buffer device provides both buffering and adjustment to ensure that the gear transmission will not misalign or break. The second roller 34 supports and rolls the platform, and the second roller 34 is fine-tuned in real time to reduce problems such as gear misalignment, tooth breakage, and wear caused by the tilt of the rotating platform.

[0048] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0049] The rotating platform assembly 7 is driven to rotate by a rotary drive system, enabling vehicle turning. During rotation, the rotating platform's level and balance are maintained by a balance adjustment device 22. The vehicle travels from the approach bridge to the rotating platform column. During this process, the buffer device and balance adjustment device 22 work together to ensure the rotating platform column's level and balance. This system offers advantages such as enabling precise and smooth vehicle steering within tunnels and real-time adjustment of the support balance to prevent the rotating platform from tilting and causing gear misalignment or damage.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rotating platform for vehicle turning around in a tunnel, characterized in that, include: The main body of the rotating platform has a frame assembly welded component, on which a gear-driven rotating platform assembly welded component is provided, and a buffer device and a balance adjustment device are provided below the rotating platform assembly welded component; The drive unit includes a rotary drive system and a steering forward drive system, wherein the rotary drive system is connected to the rotary platform assembly, and the steering forward drive system is mounted on the chassis assembly. The approach ramp includes ramp plates, which are disposed at both ends of the frame assembly welded component. Inclined ramp plate telescopic cylinders are provided between the ramp plates and the frame assembly welded component. The buffer device includes a tray, and a tray support cylinder is provided at the lower end of the tray. The tray support cylinder is mounted on the tray frame base. The pallet frame base is provided with a balance adjustment device at its lower end. The balance adjustment device includes a fixed plate, a support column at the lower end of the fixed plate, a support plate at the lower end of the support column, a motor between the support plate and the fixed plate, a screw connected to the lower end of the motor, a guide rod at the lower end of the support plate, an adjustment component sleeved on the guide rod, the adjustment component cooperating with the screw, a first clamping component at the lower end of the adjustment component clamping a first roller, a wheel frame fixedly connected to the lower end of the guide rod, a second clamping component, a first distance sensor and a through hole on the wheel frame, a second roller on the second clamping component, and a second distance sensor at the lower end of the adjustment component, the second distance sensor being opposite to the through hole. The adjusting component includes a guide block with a guide hole. The guide block is sleeved on the guide rod through the guide hole. A threaded cylinder is provided at one end of the adjusting component near the screw. The adjusting component and the threaded cylinder are provided with threads that cooperate with the screw. The motor shaft and the support plate are connected by a rotary bearing. The balance adjustment device is installed at the lower end of the rotating platform assembly welded component, located between the rotating platform assembly welded component and the frame assembly welded component, and a rolling plate is installed on the frame assembly welded component. The motor drives the screw to rotate, and the screw drives the adjusting member to move along the guide rod through the threaded transmission. The adjusting member drives the first clamping member to move, and the first clamping member drives the first roller to extend or retract from the wheel frame. The first distance sensor and the second sensor cooperate to detect the distance between the second roller and the first roller and the rolling plate set on the frame assembly welded component.

2. The rotating platform for vehicle turning around in a tunnel as described in claim 1, characterized in that, The rotary drive system includes an internal five-star motor, a cylindrical internal gear connected to the shaft of the internal five-star motor, a gear disc sleeve fitted to the cylindrical internal gear, and the gear disc sleeve connected to a rotary bearing.

3. The rotating platform for vehicle turning around in a tunnel as described in claim 1, characterized in that, The steering forward drive system includes a front wheel assembly and a rear wheel assembly, which are respectively located at both ends of the frame assembly welded component. The front wheel assembly includes a front wheel, which is connected to a steering rod, and the steering rod is connected to a steering cylinder.

4. The rotating platform for vehicle turning around in a tunnel as described in claim 1, characterized in that, The lower end of the frame assembly is equipped with a frame support cylinder, and the upper end of the rotating platform assembly is equipped with an operating handle.

5. A method of using a rotating platform for vehicle turning in a tunnel, based on the rotating platform for vehicle turning in a tunnel as described in any one of claims 1-4, characterized in that, Includes the following steps: Step 1: The vehicle travels from the approach bridge to the rotating platform column. During the process of the vehicle traveling from the approach bridge to the rotating platform column, the buffer device and the balance adjustment device work together to ensure the level and balance of the rotating platform column. Step 2: The rotating platform assembly is rotated by the rotating drive system to turn the vehicle around. During the rotation, the rotating platform is kept level and balanced by the balance adjustment device.

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