A double transverse adjustment cable hoisting system and hoisting method

Abstract

The invention discloses a double-laterally adjustable cable lifting system and a lifting method, which belongs to the technical field of lifting equipment, comprising two towers, wherein two parallel load-bearing cables are arranged between the towers, and the towers are each provided with a slide beam horizontally and perpendicular to the load-bearing cables, and two supports are slidably connected to the slide beam, and telescopic jacks for pushing corresponding supports are arranged at both ends of the slide beam, and a cable saddle for connecting the corresponding load-bearing cables is arranged on the support; two sets of lifting systems are arranged on the load-bearing cables, and the lifting systems include a pulley block, two movable seat bodies and a pushing jack connecting the two movable seat bodies, and the pulley block is fixedly connected to the movable seat body away from the tower; the movable seat body is each provided with a connecting hole for the load-bearing cable to pass through, and the movable seat body is each provided with a through hole; and a lifting winch is arranged on the support; the purpose is to solve the problem of difficulty in adjusting the spatial posture during the lifting process of the basket-type steel box arch rib.

Description

Technical Field

[0001] The invention belongs to the technical field of hoisting equipment, and in particular relates to a double-laterally adjustable cable hoisting system and a hoisting method. Background Art

[0002] Basket-type steel box arch bridge has the advantages of light weight, strong stability, good seismic performance, etc. It is one of the main structural forms of arch bridge. Arch ribs of arch bridges are often hoisted by cable cranes. Due to the characteristics of arch ribs with large spans, high heights, heavy segment weights, and a large number of segments, the cable hoisting construction process often has the disadvantages of high hoisting difficulty, high safety risks, insufficient positioning accuracy, and long construction period. In addition, the construction is difficult and costly, making it difficult to meet construction requirements. It is difficult to adjust the spatial posture during the hoisting process of basket-type steel box arch ribs. Summary of the invention

[0003] In view of this, the present invention discloses a double-lateral adjustment cable hoisting system and a hoisting method, which aims to solve the problem of difficulty in adjusting the spatial posture during the hoisting process of the basket-type steel box arch rib.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A double-laterally adjustable cable hoisting system and a hoisting method, comprising two towers, two parallel load-bearing cables are arranged between the towers, the towers are each provided with a slideway beam horizontally and perpendicular to the load-bearing cables, the slideway beam is slidably connected to two supports, both ends of the slideway beam are provided with telescopic jacks for pushing the corresponding supports, the supports are provided with cable saddles for connecting the corresponding load-bearing cables; the load-bearing cables are each provided with two sets of lifting systems, the lifting systems comprising a pulley block, two mobile seat bodies and a pushing jack connecting the two mobile seat bodies The pulley block is fixedly connected to a movable seat body away from the tower; the movable seat body is provided with a connecting hole for the load-bearing cable to pass through, and the movable seat body is provided with a through hole; the support is provided with a lifting winch, and a lifting cable is wound around the pulley block, one end of the lifting cable extends downward and is connected to a hook, and the other end of the lifting cable passes through two corresponding through holes of the movable seat bodies in turn and is connected to the corresponding lifting winch; fastening structures are provided in the connecting holes and the through holes, and the fastening structures are used to clamp the corresponding load-bearing cables and lifting cables.

[0006] In this scheme, after the hook is connected to the arch rib, the arch rib can be lifted by winding the lifting rope with the lifting winch; the double-line four-point lifting method is designed, and the height balance of the two ends of the arch rib can be adjusted by different winding degrees of the lifting winches at both ends.

[0007] By using the telescopic jack to push the corresponding supports to slide in the same direction, the cable saddle and the lifting winch are driven to move in the transverse direction of the bridge, and then the lateral position of the lifting system is adjusted, so that the spatial posture of the arch rib can be adjusted in the transverse direction of the bridge; by controlling the telescopic distance of the telescopic jack, when the support distance or moving direction on the towers at both ends is different, the direction of the load-bearing cable and the lifting cable can be adjusted to drive the arch rib to move synchronously, that is, the direction of the arch rib is adjusted by twisting along the axis of the arch rib; through the cooperation of the lifting winch and the fastening structure, the lifting system can be adjusted in the longitudinal direction of the bridge, and the arch rib can be driven to move synchronously, so that the spatial posture of the arch rib can be adjusted in the longitudinal direction of the bridge.

[0008] Furthermore, the fastening structure includes two mounting cylinders coaxially arranged at both ends of the connecting hole and the through hole, and coaxial annular blocks are slidably connected in the mounting cylinders. The load-bearing cables and lifting cables pass through the corresponding annular blocks, and a plurality of clamping blocks sliding along their radial directions are arranged on the opposite ends of the annular blocks. Elastic reset parts are arranged between the clamping blocks and the annular blocks, and a pushing structure for pushing the annular blocks to slide is arranged between adjacent mounting cylinders; a plurality of sliding grooves for accommodating the clamping blocks are opened on the inner wall of the mounting cylinder, and the depth of the sliding grooves gradually decreases in the direction approaching the pushing structure.

[0009] In the present solution, when it is necessary to clamp the load-bearing cable and the lifting cable, it is only necessary to drive the annular blocks at both ends to move toward each other through the pushing structure, and the annular blocks drive the clamping blocks to move synchronously. The closer to the pushing structure, the smaller the depth of the slide groove, thereby prompting the clamping blocks to move toward the load-bearing cable and the lifting cable until multiple clamping blocks contact the load-bearing cable and the lifting cable at the same time and clamp them; when it is necessary to release the clamping of the load-bearing cable and the lifting cable, it is only necessary to drive the annular blocks to move in the opposite direction through the pushing structure, and the annular blocks drive the clamping blocks to move synchronously to a position where the slide groove has a larger depth, and the clamping blocks slide in the opposite direction under the action of the elastic reset member and break away from the contact with the load-bearing cable and the lifting cable; the entire operation process is simple and quick.

[0010] Furthermore, the pushing structure includes a support shaft coaxially arranged above and below, the support shaft is fixedly connected to the movable seat body, the support shaft is rotatably connected to the annular seat, and the support shaft is provided with a driving device for driving the annular seat to rotate; both ends of the annular seat are hinged with symmetrically arranged connecting rods, the connecting rods are horizontally perpendicular to the support shaft, and there is an angle difference between the connecting rods and the central axis of the installation cylinder, and the ends of the connecting rods are hinged to the corresponding side ends of the annular seat.

[0011] In this solution, when the load-bearing rope and the lifting rope need to be clamped, it is only necessary to drive the annular seat to rotate forward through the driving device, and the annular blocks at both ends of the annular seat are pulled toward each other through the connecting rod; when releasing the clamping, the annular seat can be driven to rotate in the opposite direction through the driving device.

[0012] During the clamping process of the fastening structure, when the load-bearing cables, lifting cables and the moving seat body move relative to each other, the load-bearing cables and lifting cables drive the annular block at one end to move toward the pushing structure through the clamping of the clamping block, and then drive the annular seat to continue to rotate forward through the corresponding connecting rod. When the annular seat rotates forward, the other annular block is driven to move toward the pushing structure through another connecting rod, so that the clamping block continues to move toward the part with lower depth of the slide groove, prompting the clamping block to move toward the load-bearing cables and lifting cables, further increasing the clamping force of the clamping block on the load-bearing cables and lifting cables, improving the clamping stability of the fastening structure, and preventing the lifting system from sliding during use.

[0013] Furthermore, a coaxial annular groove is provided on the inner wall of the annular seat, and a plurality of limiting protrusions are provided on the side walls of the annular groove; an annular limiting ring is slidably sleeved on the support shaft, and a telescopic rod for pushing the limiting ring to slide is provided on the support shaft, and a plurality of arc-shaped connecting parts are hinged on the limiting ring, and support rods are hinged on the inner arc surfaces of the connecting parts, and positioning rods are slidably sleeved on the ends of the support rods, and the ends of the positioning rods are hinged to the limiting rings, and elastic support parts are provided between the positioning rods and the support rods.

[0014] In the present scheme, when the fastening structure needs to clamp the load-bearing cable and the lifting cable, the telescopic rod is used to push the limit ring to slide toward the annular groove, so that the connecting piece contacts the limit protrusion; when the annular seat rotates forward, the limit protrusion on the annular seat squeezes the outer arc surface of the connecting piece to cause the connecting piece to deflect, allowing the limit protrusion to pass through the connecting piece; during the clamping process, the positioning rod pushes the connecting piece to reset under the action of the elastic support member, so that the end of the connecting piece is against the limit protrusion, limiting the reverse rotation of the limit protrusion, preventing the annular seat from rotating in the opposite direction, causing the fastening structure to loosen and fail to stably clamp the load-bearing cable and the lifting cable; when it is necessary to release the clamping of the load-bearing cable and the lifting cable, it is only necessary to drive the limit ring out of the annular groove through the telescopic rod.

[0015] Furthermore, the side walls of the movable seat are provided with through-hole gun tops perpendicular to the load-bearing cables, and steel hinge ropes penetrating the movable seat are connected between the opposite through-hole gun tops.

[0016] Furthermore, a cable anchor connected to the ground is provided beside the tower, and the end of the load-bearing cable is connected to the corresponding cable anchor after passing through a cable saddle.

[0017] A method for hoisting a double-laterally adjustable cable hoist system, comprising the following steps:

[0018] S1. Equipment installation: installation of cable hoisting system;

[0019] S2. Horizontal transverse adjustment: Determine the horizontal transverse position of the lifting system according to the specifications of the arch ribs; push the corresponding supports to slide in the same direction through the telescopic jack, drive the cable saddle and the hoisting winch to move along the transverse direction of the bridge, and then adjust the transverse position of the lifting system; adjust the spacing between adjacent lifting systems in the transverse direction by controlling the telescopic distance of the telescopic jack; when the direction of the load-bearing cable needs to be changed, control the moving distance and moving direction of the supports on the tower respectively to adjust the direction of the load-bearing cable; then pull the steel hinge rope through the top of the blasthole to assist in adjusting the spacing between adjacent lifting systems in the transverse direction;

[0020] S3. Horizontal longitudinal adjustment: Determine the horizontal longitudinal position of the lifting system according to the arch rib specifications; release the clamping of the fastening structure in the connection hole and through hole on the load-bearing cable and the lifting cable;

[0021] When the lifting system needs to move in a direction away from the corresponding lifting winch, the fastening structure in the connecting hole of the mobile seat body close to the corresponding lifting winch is controlled to clamp the load-bearing cable, and then the pushing jack is controlled to extend to push the other mobile seat body and the pulley block to move in a direction away from the corresponding lifting winch; then the fastening structure in the connecting hole of the other mobile seat body is controlled to clamp the load-bearing cable, and the clamping of the fastening structure of the mobile seat body close to the corresponding lifting winch on the load-bearing cable is released, and then the pushing jack is controlled to contract to drive the mobile seat body close to the corresponding lifting winch to move in a direction away from the corresponding lifting winch; the position of the pulley block is repeatedly adjusted until the pulley block on the lifting system moves to the desired position, and then the fastening structure in the connecting hole of the mobile seat body is controlled to clamp the load-bearing cable;

[0022] When the lifting system needs to move in a direction close to the corresponding lifting winch, the fastening structure in the through hole is controlled to clamp the lifting rope, and the lifting rope is rolled up by the lifting winch, which can drive the moving seat to slide on the load-bearing rope until the pulley block on the lifting system moves to the required position, and then the fastening structure in the connecting hole of the moving seat is controlled to clamp the load-bearing rope;

[0023] S4, lifting operation: the arch rib transport ship is in place, the hook is connected to the arch rib lifting lug, the fastening structure in the connection hole is kept clamped on the load-bearing cable, the fastening structure in the through hole is released from clamping the lifting cable, and the lifting winch is used to reel in the lifting cable to lift the arch rib; the arch rib is kept still after being lifted to a certain height, and the lifting stability is observed;

[0024] S5, fine-tuning the spatial posture of the hoisted arch rib: repeat the steps of S2, and adjust the hoisting system while adjusting the spatial posture of the arch rib along the transverse direction of the bridge and the axis twisting; repeat the steps of S3, and adjust the hoisting system along the longitudinal direction of the bridge, and the spatial posture of the arch rib can be adjusted along the longitudinal direction of the bridge;

[0025] S6. Unloading: Use the hoisting winch to lower the arch rib to the installation position and fix it, then release the connection between the hook and the arch rib, and carry out the hoisting construction of the next arch rib.

[0026] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0028] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of an embodiment of the present invention in a single cable lifting state;

[0030] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0031] Figure 4 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0032] Figure 5 for Figure 2 The enlarged schematic diagram of the center C;

[0033] Figure 6 A longitudinal sectional view of a lifting system according to an embodiment of the present invention;

[0034] Figure 7 for Figure 6 The enlarged schematic diagram of point D in the middle;

[0035] Figure 8 is a transverse cross-sectional view of a movable seat body in an embodiment of the present invention;

[0036] Fig. 9 for Figure 8 The enlarged schematic diagram of point E in the middle;

[0037] Fig.10 This is a schematic diagram of the structure of an embodiment of the present invention in a lateral adjustment state;

[0038] Fig.11 It is a schematic diagram of the structure of an embodiment of the present invention under the axis adjustment state.

[0039] The markings in the accompanying drawings are as follows: tower 1, load-bearing cable 2, slide beam 3, support 4, telescopic jack 5, cable saddle 6, movable seat 7, pushing jack 8, pulley block 9, connecting hole 10, through hole 11, lifting winch 12, lifting cable 13, installation cylinder 14, annular block 15, elastic reset member 16, clamping block 17, slide groove 18, support shaft 19, annular seat 20, connecting rod 21, limiting protrusion 22, limiting ring 23, telescopic rod 24, connecting member 25, support rod 26, positioning rod 27, elastic support member 28, through-gun top 29, steel hinge rope 30, cable anchor 31, arch rib 32, hook 33. DETAILED DESCRIPTION

[0040] like Figures 1 to 11 As shown:

[0041] A double transversely adjustable cable hoist system and hoisting method, comprising two towers 1, wherein two parallel load-bearing cables 2 are arranged between the towers 1. Figure 3 , Figure 4 As shown, the tower 1 is provided with a slideway beam 3 which is horizontally perpendicular to the load-bearing cable 2, and the slideway beam 3 is slidably connected with two supports 4, and both ends of the slideway beam 3 are provided with telescopic jacks 5 for pushing the corresponding supports 4, and the supports 4 are provided with saddles 6 for connecting the corresponding load-bearing cables 2; the load-bearing cables 2 are provided with two sets of lifting systems, and the lifting systems include a pulley block 9, two mobile seat bodies 7 and a pushing jack 8 connecting the two mobile seat bodies 7, and the pulley block 9 is fixedly connected to the mobile seat body 7 away from the tower 1; the mobile seat The body 7 is provided with a connecting hole 10 for the load-bearing cable 2 to pass through, and the movable seat body 7 is opened with a through hole 11; the support 4 is provided with a lifting winch 12, and the pulley block 9 is wound with a lifting cable 13, one end of the lifting cable 13 extends downward and is connected to the hook 33, and the other end of the lifting cable 13 passes through the through holes 11 of two corresponding movable seat bodies 7 in turn and is connected to the corresponding lifting winch 12; the connecting holes 10 and the through holes 11 are provided with fastening structures, and the fastening structures are used to clamp the corresponding load-bearing cables 2 and lifting cables 13.

[0042] In this solution, after the hook 33 is connected to the arch rib 32, the arch rib 32 can be lifted by winding the lifting rope 13 with the lifting winch 12; a double-line four-point lifting method is adopted, and the height balance of the two ends of the arch rib 32 can be adjusted by adjusting the different winding degrees of the lifting winches 12 at both ends.

[0043] By using the telescopic jack 5 to push the corresponding support 4 to slide in the same direction, the cable saddle 6 and the lifting winch 12 are driven to move in the transverse direction of the bridge, and then the lateral position of the lifting system is adjusted, so that the spatial posture of the arch rib 32 can be adjusted in the transverse direction of the bridge; by controlling the telescopic distance of the telescopic jack 5, when the distance or moving direction of the support 4 on the tower frames 1 at both ends is different, the direction of the load-bearing cable 2 and the lifting cable 13 can be adjusted to drive the arch rib 32 to move synchronously, that is, the direction of the arch rib 32 is adjusted by twisting along the axis of the arch rib 32; through the cooperation of the lifting winch 12 and the fastening structure, the lifting system can be adjusted in the direction along the bridge, and the arch rib 32 can be driven to move synchronously, so that the spatial posture of the arch rib 32 can be adjusted in the direction along the bridge.

[0044] In this embodiment, the fastening structure includes two mounting cylinders 14 coaxially arranged at both ends of the connecting hole 10 and the through hole 11, and coaxial annular blocks 15 are slidably connected in the mounting cylinders 14. The load-bearing cable 2 and the lifting cable 13 pass through the corresponding annular blocks 15. A plurality of clamping blocks 17 sliding along the radial direction are arranged on the opposite ends of the annular blocks 15. An elastic reset member 16 is arranged between the clamping block 17 and the annular block 15, and a pushing structure for pushing the annular block 15 to slide is arranged between adjacent mounting cylinders 14; a plurality of sliding grooves 18 for accommodating the clamping blocks 17 are opened on the inner wall of the mounting cylinder 14, and the depth of the sliding grooves 18 gradually decreases in the direction approaching the pushing structure.

[0045] In the present solution, when it is necessary to clamp the load-bearing cable 2 and the lifting cable 13, it is only necessary to drive the annular blocks 15 at both ends thereof to move toward each other through the pushing structure, and the annular blocks 15 drive the clamping blocks 17 to move synchronously. The closer to the pushing structure slide groove 18, the smaller the depth, thereby prompting the clamping blocks 17 to move toward the load-bearing cable 2 and the lifting cable 13, until multiple clamping blocks 17 simultaneously contact and clamp the load-bearing cable 2 and the lifting cable 13; when it is necessary to release the clamping of the load-bearing cable 2 and the lifting cable 13, it is only necessary to drive the annular blocks 15 to move in the reverse direction through the pushing structure, and the annular blocks 15 drive the clamping blocks 17 to move synchronously to a position where the slide groove 18 has a larger depth, and the clamping blocks 17 slide in the reverse direction under the action of the elastic reset member 16 and break away from the contact with the load-bearing cable 2 and the lifting cable 13; the entire operation process is simple and quick.

[0046] In this embodiment, Figure 6 , Figure 7As shown, the pushing structure includes a support shaft 19 coaxially arranged above and below, the support shaft 19 is fixedly connected to the movable seat body 7, the support shaft 19 is rotatably connected to the annular seat 20, and the support shaft 19 is provided with a driving device for driving the annular seat 20 to rotate. In this embodiment, the driving device is driven by a motor gear, which belongs to conventional technical means, so it is not described in detail and is not drawn in the figure; both ends of the annular seat 20 are hinged with symmetrically arranged connecting rods 21, the connecting rods 21 are horizontally perpendicular to the support shaft 19, and there is an angle difference between the connecting rods 21 and the central axis of the mounting cylinder 14, and the ends of the connecting rods 21 are hinged to the corresponding side ends of the annular seat 20.

[0047] In this solution, when it is necessary to clamp the load-bearing cable 2 and the lifting cable 13, it is only necessary to drive the annular seat 20 to rotate in the forward direction through the driving device, and the annular seat 20 is pulled to the annular blocks 15 at both ends to move toward each other through the connecting rod 21; when releasing the clamping, the annular seat 20 can be driven to rotate in the reverse direction through the driving device.

[0048] During the clamping process of the fastening structure, when the load-bearing cable 2, the lifting cable 13 and the movable seat body 7 move relative to each other, the load-bearing cable 2, the lifting cable 13 drives the annular block 15 at one end to move toward the pushing structure through the clamping of the clamping block 17, and then drives the annular seat 20 to continue to rotate forward through the corresponding connecting rod 21. When the annular seat 20 rotates forward, the other annular block 15 is driven to move toward the pushing structure through another connecting rod 21, so that the clamping block 17 continues to move toward the lower depth of the slide groove 18, prompting the clamping block 17 to move toward the load-bearing cable 2, the lifting cable 13, further increasing the clamping force of the clamping block 17 on the load-bearing cable 2, the lifting cable 13, improving the clamping stability of the fastening structure, and preventing the lifting system from sliding during use.

[0049] In this embodiment, Figure 8 , Fig. 9 As shown, a coaxial annular groove is provided on the inner wall of the annular seat 20, and a plurality of limiting protrusions 22 are provided on the side walls of the annular groove; an annular limiting ring 23 is slidably sleeved on the support shaft 19, and a telescopic rod 24 for pushing the limiting ring 23 to slide is provided on the support shaft 19. In this embodiment, the telescopic rod 24 adopts an electric telescopic rod 24, which belongs to conventional technical means and is not described in detail; a plurality of arc-shaped connecting members 25 are hinged on the limiting ring 23, and support rods 26 are hinged on the inner arc surface of the connecting member 25, and positioning rods 27 are slidably sleeved on the ends of the support rods 26, and the ends of the positioning rods 27 are hinged to the limiting ring 23, and elastic support members 28 are provided between the positioning rods 27 and the support rods 26.

[0050] In the present scheme, when the fastening structure needs to clamp the load-bearing cable 2 and the lifting cable 13, the telescopic rod 24 pushes the limit ring 23 to slide toward the annular groove, so that the connecting piece 25 contacts the limit protrusion 22; when the annular seat 20 rotates forward, the limit protrusion 22 on the annular seat 20 squeezes the outer arc surface of the connecting piece 25 to cause the connecting piece 25 to deflect, so that the limit protrusion 22 can pass through the connecting piece 25; during the clamping process, the positioning rod 27 pushes the connecting piece 25 to reset under the action of the elastic support member 28, so that the end of the connecting piece 25 is against the limit protrusion 22, limiting the reverse rotation of the limit protrusion 22, and preventing the annular seat 20 from rotating in the opposite direction, causing the fastening structure to loosen and fail to stably clamp the load-bearing cable 2 and the lifting cable 13; when it is necessary to release the clamping of the load-bearing cable 2 and the lifting cable 13, it is only necessary to drive the limit ring 23 out of the annular groove through the telescopic rod 24.

[0051] Further, if Figure 5 As shown, the side walls of the movable seat body 7 are provided with through-hole gun tops 29 perpendicular to the load-bearing cable 2, and a steel hinge rope 30 penetrating the movable seat body 7 is connected between the through-hole gun tops 29 facing each other.

[0052] By contracting the steel hinge rope 30 through the core-penetrating blasting top 29, the transversely adjacent lifting systems can be urged to approach each other, thereby adjusting the spacing between the transversely adjacent lifting systems.

[0053] Furthermore, cable anchors connected to the ground are provided beside the tower 1 , and the ends of the load-bearing cables 2 are connected to the corresponding cable anchors 31 after passing through the cable saddle 6 .

[0054] By providing the cable anchor 31 , the load-bearing capacity of the load-bearing cable 2 is strengthened.

[0055] A method for hoisting a double-laterally adjustable cable hoist system, comprising the following steps:

[0056] S1. Equipment installation: installation of cable hoisting system;

[0057] S2. Horizontal transverse adjustment: Determine the horizontal transverse position of the lifting system according to the specifications of the arch rib 32; push the corresponding support 4 to slide in the same direction through the telescopic jack 5, drive the saddle 6 and the lifting winch 12 to move along the transverse direction of the bridge, and then adjust the transverse position of the lifting system, such as Fig.10 By controlling the telescopic distance of the telescopic jack 5, the spacing between adjacent lifting systems is adjusted; when the direction of the load-bearing cable 2 needs to be changed, the moving distance and moving direction of the support 4 on the tower 1 are controlled respectively, and the direction of the load-bearing cable 2 can be adjusted, such as Fig.11 As shown; and then through the top of the gun 29 to pull the steel hinge rope 30, to assist in adjusting the spacing between the adjacent lifting systems in the transverse direction;

[0058] S3, horizontal longitudinal adjustment: determine the horizontal longitudinal position of the lifting system according to the specifications of the arch rib 32; release the clamping of the fastening structure in the connection hole 10 and the through hole 11 on the load-bearing cable 2 and the lifting cable 13;

[0059] When the lifting system needs to move in a direction away from the corresponding lifting winch 12, the fastening structure in the connecting hole 10 of the mobile seat body 7 close to the corresponding lifting winch 12 is controlled to clamp the load-bearing cable 2, and then the pushing jack 8 is controlled to extend to push the other mobile seat body 7 and the pulley block 9 to move in a direction away from the corresponding lifting winch 12; then the fastening structure in the connecting hole 10 of the other mobile seat body 7 is controlled to clamp the load-bearing cable 2, and the clamping of the fastening structure of the mobile seat body 7 close to the corresponding lifting winch 12 on the load-bearing cable 2 is released, and then the pushing jack 8 is controlled to contract to drive the mobile seat body 7 close to the corresponding lifting winch 12 to move in a direction away from the corresponding lifting winch 12; the position of the pulley block is repeatedly adjusted until the pulley block 9 on the lifting system moves to the desired position, and then the fastening structure in the connecting hole 10 of the mobile seat body 7 is controlled to clamp the load-bearing cable 2;

[0060] When the lifting system needs to move toward the direction close to the corresponding lifting winch 12, the fastening structure in the through hole 11 is controlled to clamp the lifting rope 13, and the lifting winch 12 reels the lifting rope 13, which can drive the movable seat body 7 to slide on the load-bearing rope 2 until the pulley block 9 on the lifting system moves to the required position, and then the fastening structure in the connecting hole 10 of the movable seat body 7 is controlled to clamp the load-bearing rope 2;

[0061] S4, lifting operation: the arch rib 32 transport ship is in place, the hook 33 is connected to the lifting ear of the arch rib 32, the clamping of the fastening structure in the connection hole 10 on the load-bearing cable 2 is maintained, the clamping of the fastening structure in the through hole 11 on the lifting cable 13 is released, and the lifting winch 12 is used to reel in the lifting cable 13 to lift the arch rib 32; the arch rib 32 is stopped after being lifted to a certain height, and the lifting stability is observed;

[0062] S5, fine-tuning the spatial posture of the hoisted arch rib 32: repeating the step of S2, adjusting the hoisting system while adjusting the spatial posture of the arch rib 32 along the transverse direction of the bridge and the axis twisting; repeating the step of S3, adjusting the hoisting system along the longitudinal direction of the bridge, and adjusting the spatial posture of the arch rib 32 along the longitudinal direction of the bridge;

[0063] S6, unloading: lower the arch rib 32 to the installation position by the hoisting winch 12 and fix it, then release the connection between the hook 33 and the arch rib 32, and carry out the hoisting construction of the next arch rib 32.

[0064] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A double transversely adjustable cable hanging system, characterized in that: The invention comprises two towers, two parallel load-bearing cables are arranged between the towers, slide beams are arranged on the towers and are horizontally and perpendicularly to the load-bearing cables, two supports are slidably connected to the slide beams, telescopic jacks for pushing corresponding supports are arranged at both ends of the slide beams, and cable saddles for connecting corresponding load-bearing cables are arranged on the supports; two sets of lifting systems are arranged on the load-bearing cables, and the lifting systems include pulley blocks, two mobile seat bodies and a pushing jack connecting the two mobile seat bodies, and the pulley blocks and A movable seat body away from the tower is fixedly connected; the movable seat body is provided with a connecting hole for the load-bearing cable to pass through, and the movable seat body is provided with a through hole; a lifting winch is provided on the support, and a lifting cable is wound around the pulley block, one end of the lifting cable extends downward and is connected to a hook, and the other end of the lifting cable passes through the through holes of two corresponding movable seats in turn and is connected to the corresponding lifting winch; a fastening structure is provided in the connecting hole and the through hole, and the fastening structure is used to clamp the corresponding load-bearing cable, Lifting cable; the fastening structure includes two mounting cylinders coaxially arranged at the connecting hole and the two ends of the through hole, and the mounting cylinders are slidably connected with coaxial annular blocks, the load-bearing cable and the lifting cable pass through the corresponding annular blocks, and a plurality of clamping blocks sliding along the radial direction thereof are arranged on the opposite ends of the annular blocks, and an elastic reset member is arranged between the clamping block and the annular block, and a pushing structure for pushing the annular blocks to slide is arranged between adjacent mounting cylinders; a plurality of sliding grooves for accommodating the clamping blocks are opened on the inner wall of the mounting cylinder, and the depth of the sliding grooves gradually decreases in the direction approaching the pushing structure; the pushing structure includes a support shaft coaxially arranged above and below, the support shaft is fixedly connected to the movable seat body, the support shaft is rotatably connected to the annular seat, and a driving device for driving the annular seat to rotate is arranged on the support shaft; symmetrical connecting rods are hinged at both ends of the annular seat, the connecting rods are horizontally perpendicular to the supporting shaft, and there is an angle difference between the connecting rod and the central axis of the mounting cylinder, and the ends of the connecting rods are hinged to the corresponding side ends of the annular seat.

2. A double transversely adjustable cable suspension system according to claim 1, characterized in that: A coaxial annular groove is provided on the inner wall of the annular seat, and a plurality of limiting protrusions are provided on the side walls of the annular groove; an annular limiting ring is slidably sleeved on the support shaft, and a telescopic rod for pushing the limiting ring to slide is provided on the support shaft; a plurality of arc-shaped connecting parts are hinged on the limiting ring, and support rods are hinged on the inner arc surfaces of the connecting parts; positioning rods are slidably sleeved on the ends of the support rods, and the ends of the positioning rods are hinged to the limiting rings, and elastic support parts are provided between the positioning rods and the support rods.

3. A double transversely adjustable cable suspension system according to claim 2, characterized in that: The side walls of the movable seat are all provided with through-hole gun tops perpendicular to the load-bearing ropes, and steel hinge ropes penetrating the movable seat are connected between the through-hole gun tops facing each other.

4. A double transversely adjustable cable suspension system according to claim 3, characterized in that: Cable anchors connected to the ground are arranged beside the towers, and the ends of the load-bearing cables are connected to corresponding cable anchors after passing through cable saddles.

5. A method for assembling a double transversely adjustable cable suspension system according to claim 4, characterized in that: The steps include: S1. Equipment installation: installation of cable hoisting system; S2. Horizontal transverse adjustment: Determine the horizontal transverse position of the lifting system according to the arch rib specifications; use the telescopic jack to push the corresponding support to slide in the same direction, drive the saddle and the hoisting winch to move along the transverse direction of the bridge, and then adjust the transverse position of the lifting system; adjust the spacing between adjacent lifting systems in the transverse direction by controlling the telescopic distance of the telescopic jack; When the direction of the load-bearing cable needs to be changed, the moving distance and direction of the support on the tower are controlled respectively to adjust the direction of the load-bearing cable; then the steel hinge rope is pulled through the top of the blast hole to assist in adjusting the spacing between the adjacent lifting systems in the horizontal direction; S3. Horizontal longitudinal adjustment: Determine the horizontal longitudinal position of the lifting system according to the arch rib specifications; release the clamping of the fastening structure in the connection hole and through hole on the load-bearing cable and the lifting cable; When the lifting system needs to move in a direction away from the corresponding lifting winch, the fastening structure in the connecting hole of the mobile seat body close to the corresponding lifting winch is controlled to clamp the load-bearing cable, and then the pushing jack is controlled to extend to push the other mobile seat body and the pulley block to move in a direction away from the corresponding lifting winch; then the fastening structure in the connecting hole of the other mobile seat body is controlled to clamp the load-bearing cable, and the clamping of the fastening structure of the mobile seat body close to the corresponding lifting winch on the load-bearing cable is released, and then the pushing jack is controlled to contract to drive the mobile seat body close to the corresponding lifting winch to move in a direction away from the corresponding lifting winch; the position of the pulley block is repeatedly adjusted until the pulley block on the lifting system moves to the desired position, and then the fastening structure in the connecting hole of the mobile seat body is controlled to clamp the load-bearing cable; When the lifting system needs to move in a direction close to the corresponding lifting winch, the fastening structure in the through hole is controlled to clamp the lifting rope, and the lifting rope is rolled up by the lifting winch, which can drive the moving seat to slide on the load-bearing rope until the pulley block on the lifting system moves to the required position, and then the fastening structure in the connecting hole of the moving seat is controlled to clamp the load-bearing rope; S4, lifting operation: the arch rib transport ship is in place, the hook is connected to the arch rib lifting lug, the fastening structure in the connection hole is kept clamped on the load-bearing cable, the fastening structure in the through hole is released from clamping the lifting cable, and the lifting winch is used to reel in the lifting cable to lift the arch rib; the arch rib is kept still after being lifted to a certain height, and the lifting stability is observed; S5. Fine-tune the spatial posture of the hoisted arch rib: Repeat the steps of S2, and adjust the hoisting system while adjusting the spatial posture of the arch rib along the transverse direction of the bridge and the axis; Repeat step S3 to adjust the lifting system along the direction of the bridge, so as to adjust the spatial posture of the arch rib along the direction of the bridge; S6. Unloading: Use the hoisting winch to lower the arch rib to the installation position and fix it, then release the connection between the hook and the arch rib, and carry out the hoisting construction of the next arch rib.

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