Automatic strip winding machine for main cable of suspension bridge

Abstract

The invention relates to an automatic strip winding machine for a suspension bridge main cable, and belongs to the technical field of suspension bridge construction and maintenance equipment. Comprising a frame body, a winch is arranged on the frame body, main cable roller assemblies and cable clamp roller assemblies are arranged on the two sides of the frame body, the main cable roller assemblies and the cable clamp roller assemblies are alternately supported on a main cable or a cable clamp, and the winch pulls the frame body to continue to move to cross the cable clamp; a winding portal frame is arranged on the frame body, a portal frame moving mechanism is arranged between the winding portal frame and the frame body, and the portal frame moving mechanism drives the winding portal frame to move in the axis direction of the main cable; a winding assembly is arranged on the winding door frame and winds a strip around the periphery of the main cable. The robot can smoothly cross obstacles such as a cable clamp on a main cable, climbing, winding and clamping actions are achieved, the manual operation intensity is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to an automatic winding machine for main cables of suspension bridges, belonging to the technical field of suspension bridge construction and maintenance equipment. Background Technology

[0002] The main cable of a suspension bridge is its primary load-bearing component, and being exposed to the natural environment for extended periods, it requires rigorous rust prevention, fireproofing, and UV aging protection. Currently, one of the main methods for protecting the main cable is wrapping it with fire-resistant tape or polyvinyl fluoride (PVF) tape. Traditional wrapping operations rely primarily on manual labor or simple mechanical assistance, resulting in low efficiency, uneven wrapping tension, poor quality stability, and high risks associated with working at heights. Although some concepts or research on wrapping equipment exist in the market, mature equipment capable of automation and effectively traversing obstacles such as cable clamps on the main cable is still lacking. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic winding machine for the main cable of a suspension bridge, which can smoothly cross obstacles such as cable clamps on the main cable, realize climbing, winding and clamping actions, reduce the intensity of manual operation and improve work efficiency.

[0004] The technical solution adopted by the present invention to solve the above problems is as follows: an automatic winding machine for the main cable of a suspension bridge, comprising a frame body, a winch on the frame body, main cable roller assemblies and cable clamp roller assemblies on both sides of the frame body, the main cable roller assemblies and cable clamp roller assemblies working alternately, when the main cable roller assembly is supported on the main cable, the cable clamp roller assembly is away from the main cable, the winch pulls the frame body to move along the main cable, when it moves to the cable clamp, the cable clamp roller assembly is supported on the cable clamp, the main cable roller assembly is away from the cable clamp, the winch pulls the frame body to continue moving, realizing crossing the cable clamp; a winding gantry is provided on the frame body, a gantry moving mechanism is provided between the winding gantry and the frame body, the gantry moving mechanism drives the winding gantry to move along the main cable axis; a clamping mechanism is provided on the frame body, the clamping mechanism clamps the main cable, and a winding assembly is provided on the winding gantry, the winding assembly winds the material around the outer periphery of the main cable.

[0005] The main cable roller assembly includes a vertically arranged electric lift with main cable rollers at its bottom; the cable clamp roller assembly includes a vertically arranged manual lift with cable clamp rollers at its bottom.

[0006] The frame body includes two parallel frames arranged front and back, which are fixedly connected by multiple horizontally arranged guide rods; the top and bottom ends of the winding gantry are respectively provided with gantry guide wheel assemblies, which are located on the corresponding guide rods.

[0007] The gantry moving mechanism includes a second motor, a second gear is provided on the output shaft of the second motor, and a linear rack is provided on the side of the gantry guide wheel assembly. The linear rack is arranged parallel to the guide rod and meshes with the second gear. When the second motor drives the second gear to rotate, it drives the linear gear and the gantry guide wheel assembly to move along the guide rod.

[0008] The winding assembly includes a first motor mounted on a winding gantry. A first gear is mounted on the output shaft of the first motor. A gear disk is mounted on the side of the winding gantry via a slewing support, and the gear disk meshes with the first gear. A pulley is mounted on the gear disk. A material guide wheel is located below the pulley, and the material to be carried on the pulley is guided out by the material guide wheel.

[0009] The frame is respectively screwed with horizontally arranged clamping screws. Each clamping screw has a clamping plate at one end and a clamping handwheel at the other end. Rotating the clamping handwheel causes the clamping screw to rotate and move, so that the clamping plate is pressed against the outer periphery of the main cable or moves away from the main cable.

[0010] The clamping plate is an arc-shaped structural component, and the curvature of the clamping plate matches the outer periphery of the main cable.

[0011] Compared with existing technologies, the advantages of this invention are: an automatic winding machine for main cables of suspension bridges realizes climbing, winding, and clamping actions, reducing the intensity of manual operation and improving work efficiency. The design of the climbing mechanism enables the equipment to smoothly cross obstacles such as cable clamps on the main cable, expanding its application scenarios. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an automatic winding machine for main cables of suspension bridges according to an embodiment of the present invention; Figure 2 for Figure 1 Side view; In the diagram: 1. Winch; 2. Manual screw jack; 3. Electric worm gear jack; 4. Main cable roller; 5. Guide rod; 6. Winding gantry; 7. First motor; 8. Gear disc; 9. First gear; 10. Pulley; 11. Pressure plate; 12. Rotary disc; 13. Slewing bearing; 14. Material guide wheel; 15. Frame; 16. Second motor; 17. Second gear; 18. Linear rack; 19. Gantry guide wheel; 20. Clamping handwheel; 21. Clamping screw; 22. Clamping plate; 23. Cable clamp roller; 24. Gantry guide wheel frame. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0014] like Figure 1 , 2 As shown in this embodiment, an automatic winding machine for the main cable of a suspension bridge includes a frame body, a winding gantry 6 on the frame body, a winding assembly on the winding gantry 6, and a gantry moving mechanism between the frame body and the winding gantry 6. The gantry moving mechanism drives the winding gantry 6 to move along the axis of the main cable, so that the winding assembly wraps the fireproof tape or PVF tape around the outer periphery of the main cable. A winch 1 is provided on the frame body, and the winch 1 pulls the frame body to move along the main cable as a whole. Main cable roller assemblies and cable clamp roller assemblies are provided on both the front and rear sides of the frame body, and the main cable roller assemblies and cable clamp roller assemblies work alternately. When the main cable roller assembly is supported on the main cable, the cable clamp roller assembly moves away from the main cable, and the winch pulls the frame body to move along the main cable. When it moves to the cable clamp, the cable clamp roller assembly descends and supports the cable clamp, and the main cable roller assembly rises, so that the winding gantry moves away from the main cable, and the winch pulls the frame body to continue moving, thereby realizing that the winding gantry crosses the cable clamp.

[0015] The main cable roller assembly includes a vertically arranged electric worm gear jack 3, with a main cable roller 4 at the bottom of the electric worm gear jack 3. The electric worm gear jack drives the main cable roller to move up and down, so that the main cable roller supports or moves away from the main cable.

[0016] The cable clamp roller assembly includes a vertically arranged manual screw jack 2, with a cable clamp roller 23 at the bottom of the manual screw jack 2. The manual screw jack 2 drives the cable clamp roller 23 to move up and down, so that the cable clamp roller 23 is supported on or away from the cable clamp.

[0017] The frame body includes two parallel frames 15 arranged front to back, which are fixedly connected by four horizontally arranged guide rods 5. A gantry guide wheel assembly is provided at the top and bottom of the winding gantry 6, and the gantry guide wheel assembly is mounted on the corresponding guide rod. Each gantry guide wheel assembly includes a gantry guide wheel frame 24, which supports two symmetrically arranged gantry guide wheels 19, with a guide rod positioned between the two gantry guide wheels 19.

[0018] The gantry moving mechanism includes a second motor 16, a second gear 17 mounted on the output shaft of the second motor 16, and a linear rack 18 mounted on the side of a gantry guide wheel frame. The linear rack 18 is arranged parallel to the guide rod, and the second gear 17 meshes with the linear rack 18. When the second motor drives the second gear to rotate, it drives the linear gear and the gantry guide wheel frame to move along the guide rod, thereby driving the winding gantry and winding assembly to move forward and backward along the main cable.

[0019] The winding assembly includes a first motor 7, which is mounted on a winding gantry 6. A first gear 9 is mounted on the output shaft of the first motor 7. A gear disc 8 is mounted on the side of the winding gantry 6 via a slewing bearing, and the gear disc 8 meshes with the first gear 9. A pulley shaft is mounted on the gear disc, and a pulley and a pressure plate are mounted on the pulley shaft. The pressure plate is located outside the pulley and has a limiting function for the material. A nut is screwed onto the end of the pulley shaft, and a spring is provided between the nut and the pressure plate, allowing the distance between the pressure plate and the pulley to elastically change. The first motor drives the first gear to rotate, which in turn drives the gear disc to rotate, causing the pulley to rotate around the outer circumference of the main cable and cooperate with the movement of the winding gantry along the guide rod, thereby realizing the automatic spiral winding of the material around the outer circumference of the main cable.

[0020] A material guide wheel 14 is provided on the gear disk 8. The material guide wheel 14 is located below the pulley. The material on the pulley is guided out by the material guide wheel 8.

[0021] A horizontally arranged clamping screw 21 is screwed onto the frame. A clamping plate 22 is provided at one end of each clamping screw 21, and a clamping handwheel 20 is provided at the other end of each clamping screw 21. Rotating the clamping handwheel 20 causes the clamping screw 21 to rotate and move, so that the clamping plate is close to and presses against the outer periphery of the main cable or moves away from the outer periphery of the main cable.

[0022] The aforementioned clamping plate is an arc-shaped structural component, and the curvature of the clamping plate matches the outer perimeter of the main cable. This ensures that the frame body and the main cable remain relatively stationary during the winding assembly's operation.

[0023] During operation, the electric worm gear jack drives the main cable roller to descend, allowing it to rest on the main cable. The manual screw jack then rotates out, causing the clamp roller to rise and move away from the main cable. A winch then pulls the entire device along the main cable. Upon reaching the clamp position, the electric worm gear jack drives the main cable roller to rise, while the manual screw jack rotates in, causing the clamp roller to descend and rest on the clamp. The winch then pulls the entire device along the clamp. When it reaches the edge of the clamp, the electric worm gear jack drives the main cable roller to rest on the main cable, while the manual screw jack rotates out, causing the clamp roller to move away from the clamp, thus crossing it.

[0024] The winding assembly is mounted on the winding gantry. The gantry moving mechanism drives the winding gantry to move forward or backward along the guide rod, which in turn drives the winding assembly to move forward or backward. The winding assembly evenly and tightly winds the material onto the outer periphery of the main cable.

[0025] This application realizes the climbing, winding, and clamping actions, reducing the intensity of manual operation and improving work efficiency. The design of the climbing mechanism enables the equipment to smoothly cross obstacles such as cable clamps on the main cable, expanding the application scenarios.

[0026] In addition to the above embodiments, the present invention also includes other embodiments. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present invention.

Claims

1. An automatic winding machine for main cables of suspension bridges, characterized in that: The system includes a frame body equipped with a winch. Both sides of the frame body are equipped with main cable roller assemblies and cable clamp roller assemblies. These assemblies operate alternately. When the main cable roller assembly supports the main cable, the cable clamp roller assembly moves away from the main cable. The winch pulls the frame body along the main cable. When the frame body reaches the cable clamp, the cable clamp roller assembly supports the clamp, and the main cable roller assembly moves away. The winch continues to pull the frame body to cross the cable clamp. The frame body also includes a winding gantry, with a gantry moving mechanism between it and the frame body. This mechanism drives the winding gantry to move along the main cable axis. The frame body has a clamping mechanism that clamps the main cable. The winding gantry has a winding assembly that winds the cable around the outer periphery of the main cable.

2. The automatic winding machine for main cables of suspension bridges according to claim 1, characterized in that: The main cable roller assembly includes a vertically arranged electric lift with main cable rollers at its bottom; the cable clamp roller assembly includes a vertically arranged manual lift with cable clamp rollers at its bottom.

3. The automatic winding machine for main cables of suspension bridges according to claim 1, characterized in that: The frame body includes two parallel frames arranged front and back, which are fixedly connected by multiple horizontally arranged guide rods; the top and bottom ends of the winding gantry are respectively provided with gantry guide wheel assemblies, which are located on the corresponding guide rods.

4. The automatic winding machine for main cables of suspension bridges according to claim 4, characterized in that: The gantry moving mechanism includes a second motor, a second gear is provided on the output shaft of the second motor, and a linear rack is provided on the side of the gantry guide wheel assembly. The linear rack is arranged parallel to the guide rod and meshes with the second gear. When the second motor drives the second gear to rotate, it drives the linear gear and the gantry guide wheel assembly to move along the guide rod.

5. An automatic winding machine for main cables of suspension bridges according to claim 1, characterized in that: The winding assembly includes a first motor mounted on a winding gantry. A first gear is mounted on the output shaft of the first motor. A gear disk is mounted on the side of the winding gantry via a slewing support, and the gear disk meshes with the first gear. A pulley is mounted on the gear disk. A material guide wheel is located below the pulley, and the material to be carried on the pulley is guided out by the material guide wheel.

6. An automatic winding machine for main cables of suspension bridges according to claim 3, characterized in that: The frame is respectively screwed with horizontally arranged clamping screws. Each clamping screw has a clamping plate at one end and a clamping handwheel at the other end. Rotating the clamping handwheel causes the clamping screw to rotate and move, so that the clamping plate is pressed against the outer periphery of the main cable or moves away from the main cable.

7. An automatic winding machine for main cables of suspension bridges according to claim 6, characterized in that: The clamping plate is an arc-shaped structural component, and the curvature of the clamping plate matches the outer periphery of the main cable.

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