A suspension bridge cable clamp transport device and transport method

Abstract

This invention proposes a suspension bridge cable clamp transport device and method, belonging to the field of suspension bridge construction technology. The transport device includes a transport drive mechanism, a transport hoisting frame, and a force-transmitting sliding mechanism. The invention provides the driving force for transporting the cable clamps through the transport drive mechanism. Simultaneously, under the connection of the transport hoisting frame, the force-transmitting sliding mechanism and the lower cable clamp together form a sliding pair that slides along the main cable, transferring the weight of the upper and lower cable clamps to the main cable, making the main cable the primary load-bearing component of the upper and lower cable clamps. Therefore, in this invention, the load-bearing cable mainly serves a guiding function, with the main cable acting as the primary load-bearing component of the cable clamp. This solves the technical problem of deformation of the load-bearing cable causing the gap between the cable clamp and the main cable to be too small when transporting heavy cable clamps, leading to rubbing between the cable clamp and the main cable. Furthermore, it eliminates the need for a winch for traction, thus solving the technical problem of jamming caused by winch traction.

Description

Technical Field

[0001] This invention belongs to the field of suspension bridge construction technology, and relates to the technology of transporting cable clamps during suspension bridge construction, specifically a suspension bridge cable clamp transport device and transport method. Background Technology

[0002] Cable clamps, or simply cable clamps, are typically composed of two semi-circular or saddle-shaped cast steel components (or steel members), with their inner wall shape matching the circular cross-section of the main cable's wire bundle. As an "intermediary" between the main cable and the suspenders, the cable clamp transfers the bridge deck load to the main cable via the suspenders, while precisely determining the position of each suspender on the main cable, ensuring the bridge deck alignment and uniform stress distribution. Therefore, although the cable clamp is a relatively small component compared to the overall suspension bridge structure, it is a crucial link in the load transmission path, and its construction quality directly affects the safety and lifespan of the suspension bridge.

[0003] In existing technologies, during cable clamp installation, the weight of the cable clamp is primarily borne by the load-bearing cable, while traction is provided by a winch located above the main tower. Referring to patent application CN119308230A, a chain hoist is installed on an overhead crane, which is then used to hoist the cable clamp. During the transport of the cable clamp, the overhead crane, pulled by the winch, slides along the load-bearing cable (the gantry support cable in the patent application), transporting the cable clamp to its installation position on the main cable, where the weight of the cable clamp is primarily borne by the load-bearing cable.

[0004] With the development of suspension bridge technology, the spans of suspension bridges are becoming increasingly larger, and the force transmitted by the cable clamps is also increasing, leading to a continuous increase in the weight of the cable clamps. Currently, the weight of a single set of cable clamps used in long-span suspension bridges can reach 8-10 tons. When the weight of the cable clamps is large, it can cause severe tensile deformation of the load-bearing cable, compressing the carrying space between the load-bearing cable and the main cable. In practice, when the carrying space of the cable clamps is severely reduced, it can not only cause the cable clamps to rub against the main cable, but also cause the winch to jam due to excessive deformation of the load-bearing cable (jamming occurs when the tension on the load-bearing cable is vertically downward, while the traction force of the winch is obliquely upward; the two forces are opposite, and this happens when the vertical downward tension is too large and the traction force cannot meet the demand), affecting the further carrying capacity of the cable clamps. Summary of the Invention

[0005] In view of the technical problems described in the background art above, when carrying heavy cable clamps, there are technical problems such as the cable clamps rubbing against the main cable and the winch traction jamming, which affect the further carrying of the cable clamps. In order to address this technical problem, the present invention proposes a cable clamp carrying device and carrying method for suspension bridges.

[0006] The suspension bridge cable clamp transport device of the present invention provides driving force for transporting the cable clamps through a transport drive mechanism. Simultaneously, under the connection of the transport lifting frame, a sliding pair is formed by a force-transmitting sliding mechanism and the lower cable clamp, which together form a sliding pair along the main cable. This transfers the weight of the upper and lower cable clamps to the main cable, making the main cable the primary load-bearing component of the upper and lower cable clamps. Therefore, in this invention, the load-bearing cable mainly serves a guiding function, with the main cable acting as the primary load-bearing component of the cable clamps. This solves the technical problem of excessively small gaps between the cable clamps and the main cable due to deformation of the load-bearing cable when transporting heavy cable clamps, leading to rubbing between the cable clamps and the main cable. Furthermore, it eliminates the need for a winch for traction, thus solving the technical problem of jamming caused by winch traction.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A suspension bridge cable clamp transport device includes a transport drive mechanism, a transport hoisting frame, and a force transmission sliding mechanism. The transport drive mechanism is mounted on the load-bearing cable and is fixedly connected to the transport and hoisting frame; the transport drive mechanism provides driving force and drives the transport and hoisting frame to slide along the load-bearing cable under the guidance of the load-bearing cable. The transport and hoisting frame is used to install the force transmission sliding mechanism, the upper half cable clamp, and the lower half cable clamp. The transport and hoisting frame hoists the upper half cable clamp above the main cable. The lower half cable clamp is installed at the bottom of the transport and hoisting frame, located below the main cable, and is in contact with the bottom surface of the main cable. The force-transmitting sliding mechanism is attached to the top surface of the main cable. Together with the lower half-clamp, the force-transmitting sliding mechanism forms a sliding pair that slides along the main cable. The force-transmitting sliding mechanism provides lifting force, so that a sliding space is reserved between the upper half-clamp and the main cable. The force-transmitting sliding mechanism transmits the gravity of the upper half-clamp and the lower half-clamp to the main cable, making the main cable the main load-bearing component of the upper half-clamp and the lower half-clamp.

[0008] Further defined, the transport and hoisting frame includes a lower hoisting frame and an upper hoisting frame fixedly connected to the lower hoisting frame, the transport drive mechanism is connected to the upper hoisting frame, and the upper hoisting frame hoists the upper half of the cable clamp through the transport drive mechanism; The force-transmitting sliding mechanism is installed on the top of the lower hoisting frame, and the lifting direction of the force-transmitting sliding mechanism is parallel to the hoisting direction of the upper half cable clamp; the lower half cable clamp is fixedly installed on the bottom of the lower hoisting frame, and the part of the lower half cable clamp away from the downward direction of the main cable is in contact with the main cable, while the part of the lower half cable clamp close to the downward direction of the main cable leaves a gap of at least 15 cm between it and the main cable.

[0009] Further defined, the force transmission sliding mechanism includes a roller limiting assembly, a roller, and a top support plate. The top support plate is fixedly connected to the top of the lower hoisting frame. The fixed end of the roller limiting assembly is fixedly connected to the top support plate. The power output end of the roller limiting assembly is connected to the roller and lifts the roller to fit against the top surface of the main cable.

[0010] Further specifying, the force transmission sliding mechanism has two sets, located on both sides of the lower half cable clamp, and the position of the upper half cable clamp corresponds to the position of the lower half cable clamp.

[0011] Furthermore, the suspension bridge cable clamp carrying device also includes a lower load-bearing plate, which is fixedly installed at the bottom of the lower hoisting frame, and the lower half cable clamp is fixedly installed on the upper surface of the lower load-bearing plate, so that the lower half cable clamp is supported by the lower load-bearing plate.

[0012] Furthermore, limiting angle plates are provided at the connection points between the lower load-bearing plate and the lower hoisting frame, as well as at the connection points between the lower load-bearing plate and the lower half cable clamp. The limiting angle plates are used to limit the connection positions between the lower load-bearing plate and the lower half cable clamp, and between the lower load-bearing plate and the lower hoisting frame.

[0013] Further defined, the transport drive mechanism includes a hoisting assembly and a hoisting drive component. The fixed end of the hoisting drive component is fixedly connected to the upper hoisting frame and is fitted onto the load-bearing cable. The hoisting assembly is located below the hoisting drive component and is used to hoist the upper cable clamp.

[0014] Further specified, the lower hoisting frame is equipped with an angle measuring component and a position measuring component. The angle measuring component is used to measure the angle information of the hoisting frame during the transportation process, and the position measuring component is used to measure the position information of the hoisting frame during the transportation process. The suspension bridge cable clamp transport device also includes a controller, which is connected to the angle measuring component, the position measuring component, and the transport drive mechanism. The controller is used to control the transport speed of the transport drive mechanism based on the angle information measured by the angle measuring component and the position information measured by the position measuring component.

[0015] A method for transporting cable clamps from a suspension bridge includes the following steps: S1: Install the suspension bridge cable clamp transport device described above; S2: Under the guidance of the load-bearing cable, the transport drive mechanism drives the transport hoisting frame to slide along the load-bearing cable to transport the upper and lower cable clamps. During transportation, the angle measurement component measures the angle information of the transportation hoisting frame in real time, and the position measurement component measures the position information of the transportation hoisting frame in real time, and sends the angle information and position information to the controller. The controller controls the transport speed of the transport drive mechanism based on the angle and position information.

[0016] Further specifying, in S2, the controller controls the transport speed of the transport drive mechanism based on the angle information and position information as follows: At the start of the transport, the controller controls the transport drive mechanism to transport at an initial speed; When the controller determines that the distance to the installation position of the cable clamp is less than 100 meters based on the position information, it controls the transport drive mechanism to transport the cable at a stable speed. When the controller determines that the distance to the installation position of the cable clamp is less than 20 meters based on the position information, it controls the transport drive mechanism to decelerate and transport the cable clamp until it reaches the installation position. During transport, the controller determines whether the angle of the cable clamp exceeds the safe angle threshold based on the angle information. If it does, the controller stops the transport drive mechanism.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The suspension bridge cable clamp transport device of the present invention provides driving force for transporting the cable clamps through a transport drive mechanism. Simultaneously, under the connection of the transport lifting frame, a sliding pair is formed by a force-transmitting sliding mechanism and the lower cable clamp together, sliding along the main cable. This transfers the weight of the upper and lower cable clamps to the main cable, making the main cable the primary load-bearing component of the upper and lower cable clamps. Therefore, in this invention, the load-bearing cable mainly serves a guiding function, and the main cable is used as the primary load-bearing component of the cable clamps. This solves the technical problem that when transporting heavy cable clamps, deformation of the load-bearing cable causes the gap between the cable clamp and the main cable to be too small, leading to rubbing between the cable clamp and the main cable. Furthermore, by using the transport drive mechanism as the driving force provider, a winch is not required for traction, thus solving the technical problem of jamming caused by winch traction.

[0018] 2. In this invention, the lower half of the cable clamp away from the main cable in the downward direction is attached to the main cable, while the lower half of the cable clamp near the main cable in the downward direction is left with a gap of at least 15 cm between it and the main cable to prevent the main cable from rubbing against the lower half of the cable clamp during transportation and to ensure the safety of the transportation process.

[0019] 3. The present invention provides force transmission sliding mechanisms on both sides of the lower half cable clamp, which can improve the balance during transportation and avoid unsafe accidents caused by unstable contact between the main cable and the force transmission sliding mechanism and the lower half cable clamp during transportation.

[0020] 4. The present invention supports the lower half of the cable by means of a lower load-bearing plate, and at the same time limits the connection position between the lower load-bearing plate and the lower half cable clamp and the connection position between the lower load-bearing plate and the lower hoisting frame by means of limiting angle plates, so as to prevent the lower half cable clamp from being unstable during transportation, swaying in the air, and causing the risk of the lower half cable clamp falling off.

[0021] 5. The suspension bridge cable clamp transport device of the present invention also includes a controller. The controller controls the transport speed of the transport drive mechanism based on the angle information measured by the angle measuring component and the position information measured by the position measuring component, so as to ensure that the transport speed is stable, prevent excessive transport speed from causing large swaying and unsafe accidents, and improve the construction quality.

[0022] 6. The present invention sets the transport and hoisting frame as a detachable upper hoisting frame and a lower hoisting frame, which facilitates the disassembly of the transport and hoisting frame after the cable clamps are installed. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the suspension bridge cable clamp transport device of the present invention; Figure 2 This is a side view of the suspension bridge cable clamp transport device of the present invention; Figure 3 This is a schematic diagram of the roller limiting assembly; Figure 4 This is a three-dimensional schematic diagram of the cable clamp; Figure 5 This is the front view of the cable clip; Explanation of reference numerals in the attached figures: 1-Upper cable clamp, 2-Lower cable clamp, 3-Roller limiting assembly, 4-Roller, 5-Main cable, 6-Lower lifting frame, 7-Lower load-bearing plate, 8-Upper lifting frame, 9-Lifting assembly, 10-Limiting angle plate, 11-Lifting drive component, 12-Angle measuring assembly, 13-Position measuring assembly, 14-Load-bearing cable, 15-Top support plate. Detailed Implementation

[0024] The technical solution of the present invention will be further explained and described below with reference to the accompanying drawings and embodiments, but the present invention is not limited to the embodiments described below.

[0025] See Figure 4 and Figure 5 The cable clamp in this invention is composed of an upper cable clamp 1 and a lower cable clamp 2. When the cable clamp is transported to the corresponding cable clamp installation position on the main cable 5, the upper cable clamp 1 and the lower cable clamp 2 are fastened together by high-strength bolts.

[0026] See Figure 1 and Figure 2This invention proposes a suspension bridge cable clamp transport device, including a transport drive mechanism, a transport hoisting frame, and a force transmission sliding mechanism. The transport drive mechanism is mounted on the load-bearing cable 14 and fixedly connected to the transport hoisting frame. The transport drive mechanism provides driving force and, under the guidance of the load-bearing cable 14, drives the transport hoisting frame to slide along the load-bearing cable 14. The transport hoisting frame is used to install the force transmission sliding mechanism, the upper cable clamp 1, and the lower cable clamp 2. The transport hoisting frame hoists the upper cable clamp 1 above the main cable 5; the lower cable clamp 2 is installed... Installed at the bottom of the transport and hoisting frame, and located below the main cable 5, and in contact with the bottom surface of the main cable 5; the force transmission sliding mechanism is in contact with the top surface of the main cable 5, and together with the lower half cable clamp 2, they form a sliding pair that slides along the main cable 5. The force transmission sliding mechanism provides lifting force, so that a sliding space is reserved between the upper half cable clamp 1 and the main cable 5. The force transmission sliding mechanism transmits the gravity of the upper half cable clamp 1 and the lower half cable clamp 2 to the main cable 5, so that the main cable 5 becomes the main load-bearing component of the upper half cable clamp 1 and the lower half cable clamp 2.

[0027] The lifting frame includes a lower lifting frame 6 and an upper lifting frame 8 fixedly connected to the lower lifting frame 6. A transport drive mechanism is connected to the upper lifting frame 8, and the upper lifting frame 8 lifts the upper cable clamp 1 via the transport drive mechanism. A force-transmitting sliding mechanism is installed on the top of the lower lifting frame 6, and the lifting direction of the force-transmitting sliding mechanism is parallel to the lifting direction of the upper cable clamp 1. The lower cable clamp 2 is fixedly installed at the bottom of the lower lifting frame 6, with the portion of the lower cable clamp 2 away from the main cable 5 in the downward direction fitting against the main cable 5, and a gap of at least 15 cm left between the portion of the lower cable clamp 2 near the main cable 5 in the downward direction and the main cable 5. Both the upper lifting frame 8 and the lower lifting frame 6 are detachable frame structures made of Q355 steel, facilitating disassembly of the upper lifting frame 8 and the lower lifting frame 6 after the cable clamps are installed. They possess high strength and resistance to deformation. The lower lifting frame 6 is a U-shaped frame. (See attached image.) Figure 1 and Figure 2 The main cable 5 is located inside the U-shaped frame. In a preferred embodiment of the invention, the upper hoisting frame 8 and the lower hoisting frame 6 are rigidly connected by M24 high-strength bolts to ensure overall structural stability. The U-shaped opening diameter of the lower hoisting frame 6 is 200mm-300mm larger than the diameter of the main cable 5, ensuring that the lower hoisting frame 6 can move smoothly along the main cable 5.

[0028] In this invention, the transport drive mechanism includes a hoisting assembly 9 and a hoisting drive component 11. The fixed end of the hoisting drive component 11 is fixedly connected to the upper hoisting frame 8 and is fitted onto the load-bearing cable 14. The hoisting assembly 9 is located below the hoisting drive component 11 and is used to hoist the upper cable clamp 1. In a preferred embodiment of this invention, the hoisting drive component 11 is a drive motor capable of forward and reverse rotation and an active roller rolledly connected to the load-bearing cable 14. The active roller rolls in cooperation with the load-bearing cable 14, and the entire device moves along the load-bearing cable 14 by the forward and reverse rotation of the drive motor. Besides the drive motor, which can serve as the driving force provider, it can also be other drive devices known to those skilled in the art. In a preferred embodiment of this invention, the hoisting assembly 9 is an electric hoist, wherein the drive motor and the electric hoist are powered by a traction cable at the top of the main cable tower. The electric hoist is model CD1-5t, with a lifting speed of 8-10m / min. It is equipped with a lifting hook made of 20Mn steel, and the surface of the lifting hook is provided with anti-slip texture to prevent the upper cable clamp 1 from falling off during the lifting process.

[0029] See Figure 3 The force-transmitting sliding mechanism includes a roller limiting assembly 3, a roller 4, and a top support plate 15. The top support plate 15 is fixedly connected to the top of the lower hoisting frame 6. The fixed end of the roller limiting assembly 3 is fixedly connected to the top support plate 15, and the power output end of the roller limiting assembly 3 is connected to the roller 4, lifting the roller 4 to fit against the top surface of the main cable 5. As a preferred embodiment of the present invention, there are two sets of force-transmitting sliding mechanisms, located on both sides of the lower half cable clamp 2, with the position of the upper half cable clamp 1 corresponding to the position of the lower half cable clamp 2. The roller limiting assembly 3 is a hydraulic cylinder, model RC-100 or RC-150, with a rated lifting force ≥ 1.2 times the total weight of the entire device and cable clamps, ensuring load-bearing safety. Alternatively, the roller limiting assembly 3 can be any other limiting assembly known to those skilled in the art capable of providing drive. Each roller 4 corresponds to two roller limiting components 3. The power output ends of the two roller limiting components 3 are respectively connected to both ends of the roller 4 for synchronous lifting of the roller 4. The roller limiting components 3 are fixedly connected to the top support plate 15 by M16 bolts. The maximum range of the roller limiting components 3 is set to 1.5 times the vertical dimension of the upper half of the cable clamp 1 to ensure that its lifting height of the roller 4 can exceed the protrusion height of the installed cable clamp, so as to ensure that the installation of the cable clamp does not affect the disassembly operation of the roller limiting components 3 and the roller 4. The roller 4 consists of a roller shaft (composed of a 40Cr steel central shaft with a diameter of 80-100mm and a wear-resistant rubber layer with a thickness of 50mm and a hardness of 60-70 Shore A) and pressure-bearing components on both sides; the roller shaft is connected to the pressure-bearing components (hydraulic cylinders) through bearings to ensure that the roller 4 can rotate flexibly.

[0030] In this invention, the working principle of the force transmission sliding mechanism is as follows: When the entire device (including the upper half cable clamp 1 and the lower half cable clamp 2) moves while carrying the cable clamp, four hydraulic cylinders lift synchronously, so that the roller 4 is in close contact with the main cable 5, transferring the total weight of the entire device (including the upper half cable clamp 1 and the lower half cable clamp 2) to the main cable 5, thus avoiding the load-bearing cable 14 from being subjected to force alone, which would cause the spacing to shrink; when it is necessary to cross the installed cable clamp, the two hydraulic cylinders on the corresponding side retract, driving the roller 4 to rise until the bottom of the roller 4 is higher than the top height of the installed cable clamp, thus achieving unobstructed crossing and disassembly.

[0031] In this invention, the suspension bridge cable clamp carrying device further includes a lower load-bearing plate 7, which is fixedly installed at the bottom of the lower hoisting frame 6. The lower half cable clamp 2 is fixedly installed on the upper surface of the lower load-bearing plate 7, and the lower load-bearing plate 7 supports the lower half cable clamp 2. Limiting angle plates 10 are provided at the connection points between the lower load-bearing plate 7 and the lower hoisting frame 6, and at the connection points between the lower load-bearing plate 7 and the lower half cable clamp 2. The limiting angle plates 10 are used to limit the connection positions between the lower load-bearing plate 7 and the lower half cable clamp 2, and between the lower load-bearing plate 7 and the lower hoisting frame 6. In a preferred embodiment of this invention, the bottom of the lower hoisting frame 6 is connected to the lower load-bearing plate 7 by M20 bolts; the limiting angle plate 10 is a right-angled angle plate, which is fixedly connected to the lower load-bearing plate 7 by bolts. The lower load-bearing plate 7 supports the lower half cable clamp 2, and the limiting angle plate 10 prevents the lower half cable clamp 2 from moving during transport.

[0032] In this invention, an angle measuring component 12 and a position measuring component 13 are installed on the lower hoisting frame 6. The angle measuring component 12 is used to measure the angle information of the hoisting frame during the transportation process, and the position measuring component 13 is used to measure the position information of the hoisting frame during the transportation process. Specifically, the angle measuring component 12 is a three-axis gyroscope, and the position measuring component 13 is a GNSS positioning device. The suspension bridge cable clamp transportation device also includes a controller, which is connected to the angle measuring component 12, the position measuring component 13, and the transportation drive mechanism. The controller is used to control the transportation speed of the transportation drive mechanism based on the angle information measured by the angle measuring component 12 and the position information measured by the position measuring component 13. The controller uses an S7-200SMART PLC controller, which is electrically connected to the drive motor. Through a preset control program, it achieves staged speed control of the drive motor: an initial speed of 0.2m / s-0.3m / s (to avoid excessive starting inertia), a stable speed of 0.5m / s-0.6m / s (to improve hoisting efficiency), and a deceleration speed of 0.1m / s-0.2m / s (to ensure smooth stopping). In a preferred embodiment of the invention, the suspension bridge cable clamp carrying device also includes an alarm device connected to the controller. When the angle of the cable clamp exceeds the safety angle threshold (Y-axis tilt angle ≤ 3°, X-axis tilt angle ≤ 5°), the device controls the carrying drive mechanism to stop carrying and simultaneously triggers an alarm.

[0033] In a preferred embodiment of the present invention, when the angle of the cable clamp exceeds 30% of the safety angle threshold (Y-axis tilt angle ≤ 3°, X-axis tilt angle ≤ 5°), the controller controls the alarm device to sound an alarm, and at the same time controls the carrying speed of the carrying drive mechanism to ≤ 0.1m / s.

[0034] The carrying speed of the carrying drive mechanism is controlled by the angle measuring component 12, the position measuring component 13, the controller and the alarm device to ensure a stable carrying speed, prevent excessive shaking caused by excessive carrying speed, and improve construction quality.

[0035] It should be noted that, unless otherwise specified, all connection methods in this invention are bolted connections. The purpose of using bolted connections is to facilitate the disassembly of the entire device after the cable clamp is installed.

[0036] This invention also proposes a method for transporting cable clamps from suspension bridges, comprising the following steps: S1: Install the aforementioned suspension bridge cable clamp transport device; specifically: use a tower crane to lift the upper cable clamp 1 and lower cable clamp 2 to a temporary storage platform at the top of the main tower. Rubber pads are placed under the cable clamps during storage to prevent scratches on their surfaces; use the roller limiting assembly 3 to lift the roller 4 until it is in close contact with the top surface of the main cable 5 (contact pressure ≥ 0.5 MPa), and the height of the lower hoisting frame 6 and the lower load-bearing plate 7 meets the support requirements of the lower cable clamp 2; the distance between the load-bearing cable 14 and the main cable 5 is ≥ the height of the lower cable clamp 2 + 100 mm; use the tower top gantry (rated lifting capacity ≥ cable clamp weight) in conjunction with the upper hoisting frame 8 to lift the upper cable clamp 1 to the lifting point of the electric hoist, and adjust... The upper half of the cable clamp 1 is positioned with its flange facing down to assist in fixing the upper half of the cable clamp 1 with the wire rope and prevent it from swaying during hoisting. The lower half of the cable clamp 2 is hoisted onto the lower load-bearing plates 7 on both sides of the lower hoisting frame 6, so that the outer contour of the lower half of the cable clamp 2 fits against the arc-shaped groove of the main cable 5 but does not completely contact the main cable 5 (the lower half of the cable clamp 2 is fixedly installed at the bottom of the lower hoisting frame 6, and the part of the lower half of the cable clamp 2 away from the main cable 5 in the downward direction fits against the main cable 5, while the part of the lower half of the cable clamp 2 close to the main cable 5 in the downward direction leaves a gap of at least 15 cm between it and the main cable 5). The lower half of the cable clamp 2 is fixed to the lower load-bearing plate 7 by the limiting angle plate 10 to ensure that the lower half of the cable clamp 2 does not move during the movement, thus completing the pre-installation of the cable clamp.

[0037] S2: Under the guidance of the load-bearing cable 14, the transport drive mechanism drives the transport hoisting frame to slide along the load-bearing cable 14 to transport the upper half cable clamp 1 and the lower half cable clamp 2. During the transportation process, the angle measurement component 12 measures the angle information of the transportation hoisting frame in real time, and the position measurement component 13 measures the position information of the transportation hoisting frame in real time and sends the angle information and position information to the controller. The controller controls the transport speed of the transport drive mechanism based on the angle and position information.

[0038] Specifically, in S2, the controller controls the transport speed of the transport drive mechanism based on the angle and position information as follows: At the start of transport, the controller controls the transport drive mechanism to transport at an initial speed (0.2m / s-0.3m / s) to avoid excessive starting inertia; When the controller determines that the distance to the installation position of the cable clamp is less than 100m based on the position information, it controls the transport drive mechanism to transport the cable at a stable speed (0.5m / s-0.6m / s) to improve the hoisting efficiency. When the controller determines that the distance to the installation position of the cable clamp is less than 20 meters based on the position information, it controls the transport drive mechanism to carry the cable clamp at a deceleration speed (0.1m / s-0.2m / s) until it reaches the installation position of the cable clamp, ensuring a smooth stop. During transport, the controller determines whether the angle of the cable clamp exceeds the safe angle threshold (Y-axis tilt angle ≤ 3° or X-axis tilt angle ≤ 5°) based on the angle information. If it does, the controller stops the transport drive mechanism and simultaneously triggers an alarm.

[0039] S3: Cable clamp installation: Activate the roller limit assembly 3 to lift the roller 4 by 50mm-100mm, raising the lower hoisting frame 6 as a whole until the inner arc surface of the lower cable clamp 2 is tightly fitted with the bottom surface of the main cable 5. At this time, the roller limit assembly 3 remains in the lifting state to ensure the cable clamp position is stable. Operate the electric hoist on the upper hoisting frame 8 to slowly lower the hoist's lifting hook, lowering the upper cable clamp 1 to a position aligned with the flange face of the lower cable clamp 2. During this process, the position of the upper cable clamp 1 is finely adjusted using an electric hoist to ensure that the bolt holes of the upper cable clamp 1 and the lower cable clamp 2 are precisely aligned. The construction workers use the catwalk platform to insert M30-M42 high-strength bolts into the threaded holes of the upper cable clamp 1 and the lower cable clamp 2, and use a torque wrench to tighten the bolts to the designed preload (usually 200kN-300kN) to complete the fixed installation of the cable clamps and the main cable 5. A symmetrical tightening method is used during the tightening process to avoid uneven stress on the cable clamps.

[0040] S4: Equipment Disassembly: After the cable clamps are installed, the construction personnel disassemble the lower hoisting frame 6 and the lower load-bearing plate 7, and remove the lower load-bearing plate 7 to make room for the retraction of the entire device; according to the retraction direction of the entire device, the roller limit component 3 is activated, and the roller limit component 3 retracts (retraction speed 5mm / s-10mm / s), driving the roller 4 to rise upwards until the bottom height of the roller 4 exceeds the top height of the installed upper half cable clamp 1 (usually raised by 150mm-200mm), ensuring that the roller 4 does not contact the cable clamp during retraction; the hoisting drive component 11 is activated, and the motor is controlled to reverse, so that the entire device retracts at a speed of 0.2m / s-0.3m / s until the entire device completely crosses the installed cable clamp.

[0041] The above description is only used to illustrate the technical solutions of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing, those skilled in the art should understand that modifications can still be made to the technical solutions described above, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present invention.

Claims

1. A suspension bridge cable clamping and transporting device, characterized in that, This includes the transport drive mechanism, the transport and hoisting frame, and the force transmission sliding mechanism; The transport drive mechanism is mounted on the load-bearing cable (14) and is fixedly connected to the transport hoisting frame; the transport drive mechanism provides driving force and drives the transport hoisting frame to slide along the load-bearing cable (14) under the guidance of the load-bearing cable (14); The transport and hoisting frame is used to install the force transmission sliding mechanism, the upper half cable clamp (1) and the lower half cable clamp (2). The transport and hoisting frame hoists the upper half cable clamp (1) above the main cable (5). The lower half cable clamp (2) is installed at the bottom of the transport and hoisting frame and is located below the main cable (5), and is in contact with the bottom surface of the main cable (5). The force-transmitting sliding mechanism is attached to the top surface of the main cable (5). Together with the lower half-clip (2), the force-transmitting sliding mechanism forms a sliding pair that slides along the main cable (5). The force-transmitting sliding mechanism provides lifting force, so that a sliding space is reserved between the upper half-clip (1) and the main cable (5). The force-transmitting sliding mechanism transmits the gravity of the upper half-clip (1) and the lower half-clip (2) to the main cable (5), so that the main cable (5) becomes the main load-bearing component of the upper half-clip (1) and the lower half-clip (2).

2. The suspension bridge cable clamping and transporting device according to claim 1, characterized in that, The transport and hoisting frame includes a lower hoisting frame (6) and an upper hoisting frame (8) fixedly connected to the lower hoisting frame (6). The transport drive mechanism is connected to the upper hoisting frame (8), and the upper hoisting frame (8) hoists the upper half cable clamp (1) through the transport drive mechanism. The force transmission sliding mechanism is installed on the top of the lower hoisting frame (6), and the lifting direction of the force transmission sliding mechanism is parallel to the hoisting direction of the upper half cable clamp (1); the lower half cable clamp (2) is fixedly installed at the bottom of the lower hoisting frame (6), and the part of the lower half cable clamp (2) away from the downward direction of the main cable (5) is in contact with the main cable (5), and the part of the lower half cable clamp (2) close to the downward direction of the main cable (5) leaves a gap of at least 15 cm between it and the main cable (5).

3. The suspension bridge cable clamping and transporting device according to claim 2, characterized in that, The force transmission sliding mechanism includes a roller limiting assembly (3), a roller (4) and a top support plate (15). The top support plate (15) is fixedly connected to the top of the lower hoisting frame (6). The fixed end of the roller limiting assembly (3) is fixedly connected to the top support plate (15). The power output end of the roller limiting assembly (3) is connected to the roller (4) and lifts the roller (4) to fit against the top surface of the main cable (5).

4. The suspension bridge cable clamping and transporting device according to any one of claims 1-3, characterized in that, The force transmission sliding mechanism has two sets, located on both sides of the lower half cable clamp (2), and the position of the upper half cable clamp (1) corresponds to the position of the lower half cable clamp (2).

5. The suspension bridge cable clamping and transporting device according to claim 2, characterized in that, The suspension bridge cable clamp carrying device also includes a lower load-bearing plate (7), which is fixedly installed at the bottom of the lower hoisting frame (6). The lower half cable clamp (2) is fixedly installed on the upper surface of the lower load-bearing plate (7) and is supported by the lower load-bearing plate (7).

6. The suspension bridge cable clamping and transporting device according to claim 5, characterized in that, Limiting angle plates (10) are provided at the connection between the lower load-bearing plate (7) and the lower hoisting frame (6) and at the connection between the lower load-bearing plate (7) and the lower half cable clamp (2). The limiting angle plates (10) are used to limit the connection position between the lower load-bearing plate (7) and the lower half cable clamp (2) and the connection position between the lower load-bearing plate (7) and the lower hoisting frame (6).

7. The suspension bridge cable clamping and transporting device according to claim 2, characterized in that, The transport drive mechanism includes a hoisting assembly (9) and a hoisting drive component (11). The fixed end of the hoisting drive component (11) is fixedly connected to the upper hoisting frame (8) and is mounted on the load-bearing cable (14). The hoisting assembly (9) is located below the hoisting drive component (11) and is used to hoist the upper cable clamp (1).

8. The suspension bridge cable clamping and transporting device according to claim 2, characterized in that, An angle measuring component (12) and a position measuring component (13) are installed on the lower hoisting frame (6). The angle measuring component (12) is used to measure the angle information of the hoisting frame during the transportation process, and the position measuring component (13) is used to measure the position information of the hoisting frame during the transportation process. The suspension bridge cable clamp carrying device also includes a controller, which is connected to the angle measuring component (12), the position measuring component (13) and the carrying drive mechanism. The controller is used to control the carrying speed of the carrying drive mechanism according to the angle information measured by the angle measuring component (12) and the position information measured by the position measuring component (13).

9. A method for transporting cables clamped together in a suspension bridge, characterized in that, Includes the following steps: S1: Install the suspension bridge cable clamp transport device as described in claim 8; S2: Under the guidance of the load-bearing cable (14), the transport drive mechanism drives the transport hoisting frame to slide along the load-bearing cable (14) to transport the upper half cable clamp (1) and the lower half cable clamp (2); During the transportation process, the angle measurement component (12) measures the angle information of the transportation hoisting frame in real time, and the position measurement component (13) measures the position information of the transportation hoisting frame in real time and sends the angle information and position information to the controller. The controller controls the transport speed of the transport drive mechanism based on the angle and position information.

10. The method for transporting suspension bridge cable clamps according to claim 9, characterized in that, In step S2, the controller controls the transport speed of the transport drive mechanism based on the angle and position information as follows: At the start of the transport, the controller controls the transport drive mechanism to transport at an initial speed; When the controller determines that the distance to the installation position of the cable clamp is less than 100 meters based on the position information, it controls the transport drive mechanism to transport the cable at a stable speed. When the controller determines that the distance to the installation position of the cable clamp is less than 20 meters based on the position information, it controls the transport drive mechanism to decelerate and transport the cable clamp until it reaches the installation position. During transport, the controller determines whether the angle of the cable clamp exceeds the safe angle threshold based on the angle information. If it does, the controller stops the transport drive mechanism.

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