Large-diameter large-span beam string high-van cable unwinding device and use method

Abstract

This application discloses a cable-laying device and method for large-diameter, long-span tensioned beams with high vanadium cables, relating to the field of tensioned beam construction technology. The device includes a track assembly with a winding cylinder on its upper surface. A cable rope is wound around the outer surface of the winding cylinder. A support assembly is also provided on the upper surface of the track assembly. This invention supports the cable through the support assembly, and the support height can be adjusted according to actual needs, preventing damage from contact with the ground and increasing the cable's service life. A limiting assembly limits the cable's movement during transport, preventing swaying during unfolding, avoiding friction with the ground and contact with hard objects, thus protecting the cable and ensuring its integrity during later construction, thereby improving tensioning quality. A moving assembly can fix cables of different thicknesses, enabling the stretching and unfolding of cables of various specifications.

Description

Technical Field

[0001] This application relates to the field of tensioned beam construction technology, and in particular to a cable-laying device and method for using high-vanadium cables in large-diameter, large-span tensioned beams. Background Technology

[0002] A tensioned beam structure is a hybrid structural system consisting of a rigid upper chord, flexible cables, and intermediate struts. Its structural composition is a novel self-balancing system and a large-span prestressed spatial structure. Tensioned beam structures are simple, have clearly defined stress distribution, offer diverse structural forms, fully utilize the advantages of both rigid and flexible materials, and are relatively convenient to manufacture, transport, and install, showing promising application prospects. However, the structural stiffness of a tensioned beam structure is relatively weak before prestressing cable tensioning. The tensioning process leads to a secondary distribution of forces, and the tensioning sequence significantly impacts structural deformation and installation quality. In the prestressed cable construction of a tensioned beam, the first step is to unfold the cables (high-vanadium cables) before installation. The high-vanadium cables used in tensioned beam structures are typically large-diameter cables, characterized by their heavy weight and large diameter. When the span of the tensioned beam is large, the length of the high-vanadium cables is also large, requiring moving and traction devices to unfold the cables.

[0003] The existing technology still has the following problems: 1. The traditional cable laying method involves placing the cable head on a flatbed truck on the ground, then placing the cable body on a moving assembly, and using a winch to pull the cable through the support frames on both sides from one end to the other. During the movement, the cable is prone to contact with the ground. Without corresponding support equipment, the cable will come into contact with the ground, causing damage and affecting its service life.

[0004] 2. The ground at the construction site is mostly uneven, making it difficult to control the direction of the trolley pulled by the winch. During the movement of the cable, it is easy for it to sway, causing the cable to come into contact with the ground or hard objects, which can damage the cable and result in poor tensioning quality.

[0005] 3. When laying the cable, one end of the lock head needs to be fixed. The existing equipment can only fix one specification of cable, so for cables of different thicknesses, the corresponding fixing structure needs to be changed, which has poor fault tolerance and affects construction efficiency. Summary of the Invention

[0006] This application provides a cable-laying device and method for large-diameter, long-span tensioned beams with high vanadium cables. It solves the problems in the prior art where the cable is in contact with the ground and is prone to swaying during movement. It also addresses the need to replace the fixing structure for cables of different thicknesses. This application enables the cable to be supported, preventing swaying during deployment and fixing cables of different thicknesses.

[0007] This application provides a cable-laying device for a large-diameter, long-span tensioned beam with high vanadium cable, including a track assembly and a winch. A winding cylinder is provided on the upper surface of the track assembly, and a tension cable is wound around the outer surface of the winding cylinder. A support assembly and a limit assembly are provided on the upper surface of the track assembly. A movable assembly is slidably connected to the upper surface of the track assembly. A traction rope is wound around the winch and connected to the movable assembly. The track assembly includes a fixed plate, and the winding cylinder is rotatably connected to the fixed plate. A track plate is sleeved on one end of the fixed plate. A track bar is fixedly installed on the upper surface of the track slab. Limiting holes are provided on the upper surfaces of both the fixing plate and the track slab. A protrusion is fixedly connected to one end of the fixing plate, and a protrusion is provided at one end of the track slab, while a groove is provided at the other end. The protrusion of the fixing plate and the groove of the track slab are connected end to end, and the protrusion of the track slab and the groove of the track slab are also connected end to end. The limiting component includes a correction mechanism. An adjustment mechanism is inserted into the upper surface of the correction mechanism. The limiting mechanism is slidably connected to the inner cavity of the adjustment mechanism. A first track wheel is fixedly installed at the bottom end of the correction mechanism, and the first track wheel is tactilely connected to the track bar.

[0008] Furthermore, the support assembly includes a base, a storage shell is fixedly mounted on the upper surface of the base, a hand lever is rotatably connected to the inner cavity of the storage shell, a worm gear is fixedly connected to the outer surface of the hand lever, a rotating rod is rotatably connected to the inner wall of the storage shell, a turbine is fixedly connected to the outer surface of the rotating rod, a toothed rod is slidably connected to the inner cavity of the storage shell, a limit rod is fixedly mounted on the upper surface of the storage shell, a telescopic frame is fixedly mounted on the top end of the toothed rod, and a first sliding wheel is rotatably connected to the upper inner wall of the telescopic frame.

[0009] Furthermore, the base and the fixed plate are fixedly connected, the worm gear and the rotating rod mesh, the gear rod and the rotating rod mesh, and the gear rod and the limiting rod are slidably connected.

[0010] Furthermore, the correction mechanism includes a correction frame, a limiting block is provided above the correction frame, a ball is rotatably connected to the upper inner cavity of the limiting block, elastic rods are fixedly installed at both ends of the limiting block, a limiting groove is formed on the upper surface of the elastic rod, a first spring is sleeved on the outer surface of the elastic rod, and a first insert rod is fixedly installed on both sides of the top end of the correction frame. The first spring is located between the inner wall of the correction frame and the limiting block, and the elastic rod is slidably connected to the correction frame through the limiting groove.

[0011] Furthermore, the adjustment mechanism includes a connecting frame, the lower surface of which has a first sliding groove, the inner cavity of which is rotatably connected to a first threaded rod, the inner cavity of which is slidably connected to a slider, the bottom end of which is movably connected to a first connecting strip, the inner walls of both sides of the connecting frame having second sliding grooves, the end of the first connecting strip away from the slider being movably connected to a connecting block, and the bottom ends of the connecting frame having slots on both sides, the slots being engaged with the first insert rod.

[0012] Furthermore, the first threaded rod and the connecting frame are rotatably connected, and there are two sliders. The first threaded rod and the slider are connected by threads, and the two ends of the first threaded rod have opposite thread directions.

[0013] Furthermore, the limiting mechanism includes a sliding plate, the outer surface of which has an insertion hole, and fixed blocks are fixedly installed at both ends of the lower surface of the sliding plate. A fixed rod is fixedly installed on the outer surface of the fixed block, and a second spring is sleeved on the middle part of the fixed rod. A buffer block is slidably connected to the outer surface of the fixed rod, and a second connecting strip is movably connected to the bottom end of the buffer block. A limiting frame is movably connected to the end of the second connecting strip away from the buffer block. A second sliding wheel is rotatably connected to the lower inner wall of the limiting frame, and a second insert rod is fixedly installed on the upper surfaces of both ends of the limiting frame. A third spring is sleeved on the outer surface of the second insert rod.

[0014] Furthermore, the second insert rod passes through the fixed rod and the insertion hole and is inserted. There are two buffer blocks, located at both ends of the second spring. The slide plate and the second slide groove are slidably connected. The third spring is located between the fixed rod and the limiting frame. The second sliding wheel is located directly above the limiting block. The connecting block and the slide plate are fixedly connected. The buffer block and the slide plate are slidably connected.

[0015] Furthermore, the moving component includes a moving trolley, the bottom end of which is rotatably connected to a second track wheel, and the upper surface of which is rotatably connected to a second threaded rod. A moving block is slidably connected to the upper surface of the second track wheel. There are two moving blocks, and the moving blocks and the second threaded rod are connected by threads. The threads at both ends of the second threaded rod are opposite. A first clamping ring and a second clamping ring are fixedly installed on the upper surface of each moving block. The first and second clamping rings are respectively installed on the two moving blocks. The upper and lower ends of the first clamping ring are hollowed out externally, and the upper and lower ends of the second clamping ring are hollowed out in the middle.

[0016] A method for deploying high-vanadium cables for large-diameter, long-span tensioned beams, performed by the aforementioned device, includes the following steps: S1. Determine the cable laying route and level the ground. Before laying the high-vanadium cable, determine the cable laying route of the tension beam according to the position of the tension beam and level the ground along the route to ensure the flatness of the ground along the route. S2. Positioning and installation of track slabs: Install linear track slabs below the projection of the tensioned beam structure. Limiting holes are reserved on the track slabs. After splicing to the appropriate length as required or based on the span of the tensioned beam, fix them to the ground. Considering that the structural spans of different tensioned beams may be different, the track slabs can be spliced ​​in sections. The track slabs are spliced ​​together with grooves to ensure the continuity and stability of the track. After the first high-strength cable is deployed and hoisted, the track slabs can be disassembled immediately and used again when installing the tensioned beam cables of the second span. S3. Fixing of the support assembly: To facilitate cable extension, an adjustable support frame is installed. The height can be adjusted according to the cable reel or site requirements. The first sliding wheel is used to move the cable body in a directional manner without friction. S4. Cable Deployment: While ensuring the safety of the cable reel, begin cable deployment. Use a winch to pull one end of the cable head, and with the help of a crane, slowly place the cable head onto the moving assembly. The cable body rests on the rollers of the adjustable support frame, and the cable body is moved directionally. The moving assembly is placed on the track. Due to the large weight of the cable head, the sliding trolley is made of high-strength material to ensure the load-bearing capacity requirements. As the large-diameter cable moves under the traction of the winch, as the cable body expands and elongates, limit components need to be placed at intervals. The limit components stabilize the cable body to prevent tilting or collision, ensuring that the cable body moves along the track until the cable is fully deployed. After deployment, use a crane to lift the cable, completing the cable installation.

[0017] The technical solution provided in this application has at least the following technical effects or advantages: 1. By adopting a support assembly, this invention effectively solves the problem of the traditional cable laying method, which involves placing the cable head on a flatbed cart on the ground, then placing the cable body on a moving assembly, and using a winch to pull the cable from one end to the other through the support frames on both sides. During the movement, the cable is prone to contact with the ground, and without corresponding support equipment, this leads to damage to the cable and affects its service life. This invention uses a support assembly to support the cable, and the support height can be adjusted according to actual needs, avoiding damage to the cable from contact with the ground and increasing the cable's service life.

[0018] 2. Due to the use of limiting components, the problem of uneven ground at construction sites is effectively solved. This makes it difficult to control the direction of the trolley pulled by the winch, and the cable is prone to swaying during movement, causing friction between the cable and the ground or contact with hard objects, damaging the cable and resulting in poor tension quality. This invention uses limiting components to limit the movement of the cable during transport, preventing swaying during deployment, avoiding friction between the cable and the ground and contact with hard objects, thus protecting the cable and ensuring its integrity during later construction, thereby improving tension quality.

[0019] 3. By using a movable component, the problem of fixing one end of the lock head when extending the cable is effectively solved. Existing equipment can only fix one specification of cable, so the corresponding fixing structure needs to be changed for cables of different thicknesses. This has poor fault tolerance and affects construction efficiency. The present invention can fix cables of different thicknesses through the movable component, realizing the stretching and unfolding of cables of various specifications. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure in Embodiment 1 of this application; Figure 2 This is a partial schematic diagram of the track slab assembly structure in Embodiment 1 of this application; Figure 3 This is a schematic diagram of the support assembly structure in Embodiment 1 of this application; Figure 4 This is a schematic cross-sectional view of the storage shell structure in Embodiment 1 of this application; Figure 5 This is a schematic diagram of the limiting component structure in Embodiment 1 of this application; Figure 6 This is a schematic diagram of the correction mechanism structure in Embodiment 1 of this application; Figure 7 This is a schematic diagram of the adjustment mechanism structure in Embodiment 1 of this application; Figure 8 This is a schematic diagram of the limiting mechanism structure in Embodiment 1 of this application; Figure 9 This is a schematic diagram of the mobile component structure in Embodiment 2 of this application.

[0021] In the diagram: 1. Track assembly; 11. Fixing plate; 12. Track plate; 13. Track strip; 14. Limiting hole; 2. Winding cylinder; 3. Pull rope; 4. Support assembly; 41. Base; 42. Storage shell; 43. Hand lever; 44. Worm gear; 45. Rotating rod; 46. Turbine; 47. Gear; 48. Limiting rod; 49. Telescopic frame; 410. First sliding wheel; 5. Limiting assembly; 51. Correction mechanism; 511. Correction frame; 512. Limiting block; 513. Rolling ball; 514. Elastic rod; 515. Limiting groove; 516. First spring; 517. First insert rod; 52. Adjustment mechanism; 521. Connecting frame; 522. First slide groove; 52 3. First threaded rod; 524. Slider; 525. First connecting bar; 526. Second slide groove; 527. Connecting block; 528. Slot; 53. Limiting mechanism; 531. Slide plate; 532. Insertion hole; 533. Fixing block; 534. Fixing rod; 535. Second spring; 536. Buffer block; 537. Second connecting bar; 538. Limiting frame; 539. Second sliding wheel; 5310. Second insertion rod; 5311. Third spring; 54. First track wheel; 6. Moving assembly; 61. Moving trolley; 62. Second track wheel; 63. Second threaded rod; 64. Moving block; 65. First clamping ring; 66. Second clamping ring; 7. Winch. Detailed Implementation

[0022] For cables that are damaged due to lack of support, this invention provides a support frame to support the cables, with adjustable support height to prevent damage from ground contact. For cables prone to swaying during movement, causing friction with the ground or contact with hard objects, this invention uses a limiting component to restrict movement during transport, preventing swaying and avoiding friction or contact with hard objects. For devices that can only fix one type of cable, requiring different fixing structures for cables of varying thicknesses, this invention uses a moving component to fix cables of different thicknesses, enabling the stretching and unfolding of cables of various specifications.

[0023] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods. Example

[0024] Please see Figure 1As shown, a cable-laying device for a large-diameter, long-span tensioned beam with high vanadium cable includes a track assembly 1 and a winch 7. A winding cylinder 2 is mounted on the upper surface of the track assembly 1, and a tension cable 3 is wound around the outer surface of the winding cylinder 2. A support assembly 4 is mounted on the upper surface of the track assembly 1, and a limit assembly 5 is mounted on the upper surface of the track assembly 1. A moving assembly 6 is slidably connected to the upper surface of the track assembly 1. A traction rope is wound around the winch 7 and is connected to the moving assembly 6. The track assembly 1 is then mounted on the ground, and the tension cable 3 is placed on the support assembly 7. The frame assembly 4 is designed to prevent contact with the ground and the limiting assembly 5 is designed to prevent the cable rope 3 from swaying when stretched. The cable rope 3 is fixed by the moving assembly 6 and transported on the track assembly 1 to allow the cable rope 3 to unfold. The moving assembly 6 is moved by the traction rope on the winch 7, and the moving assembly 6 causes the cable rope 3 to unfold. The limiting assembly 5 supports and limits the cable rope 3 to prevent it from dragging on the ground. A limiting assembly 5 is placed at intervals to facilitate the unfolding of the cable rope 3 under large spans.

[0025] Please see Figure 1 and Figure 2 As shown, the track assembly 1 includes a fixed plate 11, a winding cylinder 2 rotatably connected to the fixed plate 11, a track plate 12 sleeved on one end of the fixed plate 11, a track bar 13 fixedly installed on the upper surface of the track plate 12, and limit holes 14 opened on the upper surfaces of both the fixed plate 11 and the track plate 12. A protrusion is fixedly connected to one end of the fixed plate 11, a protrusion is provided at one end of the track plate 12, and a groove is provided at the other end. The protrusion of the fixed plate 11 and the groove of the track plate 12 are connected end to end, and the protrusion of the track plate 12 and the groove of the track plate 12 are connected end to end. The fixed plate 11 and the track plate 12 are spliced ​​together. The track plate 12 is spliced ​​according to the actual length so that the length of the track plate 12 is slightly longer than the unfolded length of the pull rope 3. The moving component 6 moves by sliding on the track bar 13, ensuring that the position of the moving component 6 does not shift. The limit hole 14 is opened for fixing to the ground and can be fixed by bolts or other fasteners.

[0026] Please see Figure 3 and Figure 4As shown, the support assembly 4 includes a base 41, a storage shell 42 fixedly mounted on the upper surface of the base 41, a hand lever 43 rotatably connected to the inner cavity of the storage shell 42, a worm gear 44 fixedly connected to the outer surface of the hand lever 43, a rotating rod 45 rotatably connected to the inner wall of the storage shell 42, a turbine 46 fixedly connected to the outer surface of the rotating rod 45, a toothed rod 47 slidably connected to the inner cavity of the storage shell 42, a limit rod 48 fixedly mounted on the upper surface of the storage shell 42, a telescopic frame 49 fixedly mounted at the top of the toothed rod 47, a first sliding wheel 410 rotatably connected to the upper inner wall of the telescopic frame 49, the base 41 and the fixed plate 11 fixedly connected, the worm gear 44 and the rotating rod 45 mesh, the toothed rod 47 and the rotating rod 45 mesh, and the toothed rod 47 and the limit rod 48 are slidably connected. When the cable 3 is unfolded... To prevent the cable 3 from contacting the ground, it is placed on the first sliding wheel 410. The height of the first sliding wheel 410 can be adjusted by rotating the hand lever 43, which drives the worm gear 44 to rotate. The worm gear 44 rotates, which in turn drives the turbine 46 to rotate. That is, the rotating rod 45 rotates on the inner wall of the housing 42. The turbine 46 rotates, which drives the gear 47 to move in the inner cavity of the limiting rod 48. The movement of the gear 47 drives the telescopic frame 49 to move up and down, thereby changing the height of the first sliding wheel 410. The height of the first sliding wheel 410 can be adjusted according to actual needs, so that the first sliding wheel 410 supports the cable 3 and ensures that the cable 3 is not in contact with the ground. The first sliding wheel 410 and the telescopic frame 49 are rotatably connected, which facilitates the movement of the cable 3.

[0027] Please see Figure 5 and Figure 6As shown, the limiting assembly 5 includes a correction mechanism 51, an adjustment mechanism 52 is inserted into the upper surface of the correction mechanism 51, a limiting mechanism 53 is slidably connected to the inner cavity of the adjustment mechanism 52, a first track wheel 54 is fixedly installed at the bottom end of the correction mechanism 51, and the first track wheel 54 and the track bar 13 are rotatably connected to facilitate the overall movement of the limiting assembly 5. The correction mechanism 51 includes a correction frame 511, a limiting block 512 is provided above the correction frame 511, and a ball bearing 513 is rotatably connected to the upper inner cavity of the limiting block 512. Elastic rods 514 are fixedly installed at both ends of the positioning block 512. A limiting groove 515 is formed on the upper surface of the elastic rod 514. A first spring 516 is sleeved on the outer surface of the elastic rod 514. First insert rods 517 are fixedly installed on both sides of the top of the correction frame 511. The first spring 516 is located between the inner wall of the correction frame 511 and the limiting block 512. The elastic rod 514 is slidably connected to the correction frame 511 through the limiting groove 515. The correction mechanism 51 and the limiting mechanism 53 are used to limit the movement of the cable 3. When the pull cable 3 is pulled to unfold, due to the long distance, the pull cable 3 is limited by the straightening mechanism 51 and the limiting mechanism 53. The adjusting mechanism 52 is used to adjust the distance between the straightening mechanism 51 and the limiting mechanism 53 to ensure that the pull cable 3 is not squeezed. During transportation, the pull cable 3 is placed on the upper end of the limiting block 512 and in contact with the ball 513. The ball 513 rotates in the inner cavity of the limiting block 512 to facilitate the movement and transportation of the pull cable 3. When the pull cable 3 deviates, it causes the limiting block 512 to shake. The movement of the spring rod 514 causes it to slide left and right within the inner cavity of the straightening frame 511. At this time, the elastic force of the first spring 516 causes the limiting block 512 to return to its original position, so that the limiting block 512 is always kept in the middle of the upper end of the straightening frame 511, thereby reducing the swing generated when the cable 3 moves and preventing the cable 3 from rubbing against the ground or other hard objects. The limiting groove 515 ensures that the spring rod 514 does not deflect when it moves, that is, the limiting block 512 will not rotate, and the ball 513 assists the cable 3 in moving.

[0028] Please see Figure 5 and Figure 7As shown, the adjusting mechanism 52 includes a connecting frame 521. A first groove 522 is formed on the lower surface of the connecting frame 521. A first threaded rod 523 is rotatably connected to the inner cavity of the first groove 522. A slider 524 is slidably connected to the inner cavity of the first groove 522. A first connecting strip 525 is movably connected to the bottom end of the slider 524. Second grooves 526 are formed on the inner walls of both sides of the connecting frame 521. A connecting block 527 is movably connected to the end of the first connecting strip 525 away from the slider 524. Slots 528 are formed on both sides of the bottom end of the connecting frame 521. The slots 528 and the first insert rod 517 are inserted into each other. The first threaded rod 523 is rotatably connected to the connecting frame 521. There are two sliders 524. The first threaded rod 523 and the slider 524 are connected by threads. The two ends of the first threaded rod 523 have opposite thread directions. The position of the limiting mechanism 53 is adjusted by the adjusting mechanism 52, so that the limiting mechanism 53 and the limiting block 51 are connected. 2. Fitting: By rotating the first threaded rod 523, the slider 524 moves within the cavity of the first slide groove 522. The movement of the slider 524 causes a change in the tilt angle of the first connecting strip 525. This change in the angle of the first connecting strip 525 causes a change in the distance between the connecting block 527 and the slider 524. At this time, the limiting mechanism 53 moves within the cavity of the second slide groove 526, facilitating the adjustment of the distance between the limiting mechanism 53 and the limiting block 512, preventing the cable 3 from falling off the top of the limiting block 512. The first insert rod 517 and the slot 528 are engaged, facilitating the removal of the adjustment mechanism 52 and the limiting mechanism 53 as a whole. When the cable 3 is placed on the limiting block 512, the slot 528 and the first insert rod 517 are then engaged. The position of the limiting mechanism 53 can be adjusted according to the specifications of the cable 3 through the adjustment mechanism 52. This limits the cable 3 while preventing it from being clamped too tightly, which would affect transportation.

[0029] Please see Figure 5 , Figure 7 and Figure 8As shown, the limiting mechanism 53 includes a sliding plate 531. An insertion hole 532 is provided on the outer surface of the sliding plate 531. Fixing blocks 533 are fixedly installed at both ends of the lower surface of the sliding plate 531. A fixing rod 534 is fixedly installed on the outer surface of the fixing blocks 533. A second spring 535 is sleeved in the middle of the fixing rod 534. A buffer block 536 is slidably connected to the outer surface of the fixing rod 534. A second connecting strip 537 is movably connected to the bottom end of the buffer block 536. A limiting frame 538 is movably connected to the end of the second connecting strip 537 away from the buffer block 536. A second sliding wheel 539 is rotatably connected to the lower inner wall of the limiting frame 538. The upper surfaces of both ends of the positioning frame 538 are fixedly mounted with second insert rods 5310. A third spring 5311 is sleeved on the outer surface of the second insert rod 5310. The second insert rod 5310 passes through the fixed rod 534 and is inserted into the insertion hole 532. There are two buffer blocks 536 located at both ends of the second spring 535. The slide plate 531 and the second slide groove 526 are slidably connected. The third spring 5311 is located between the fixed rod 534 and the positioning frame 538. The second sliding wheel 539 is located directly above the limiting block 512. The connecting block 527 is fixedly connected to the slide plate 531, and the buffer block 536 is slidably connected to the slide plate 531. The adjustment mechanism 52... The position of the slide plate 531 within the inner cavity of the second slide groove 526 is adjusted so that the second sliding wheel 539 is directly above the limiting block 512. The second sliding wheel 539 can limit the pull cable 3, preventing it from swaying up and down during movement and detaching from the upper surface of the limiting block 512. When the pull cable 3 sways up and down, the second sliding wheel 539 is compressed. At this time, the second sliding wheel 539 drives the limiting frame 538 to move upward. The upward movement of the limiting frame 538 drives the second insert rod 5310 to move upward, and the third spring 5311 is compressed. At this time, the second insert rod 5310 and the insertion hole 532 are engaged, and the limiting frame... The upward movement of 538 causes a change in the angle of the second connecting bar 537. At this time, the buffer block 536 moves on the fixed rod 534, causing the second spring 535 to be compressed. Under the elastic force of the second spring 535 and the third spring 5311, the limiting frame 538 moves downward, keeping the cable rope 3 always within the cavity of the limiting block 512, reducing the shaking during transportation, and protecting the cable rope 3 during unfolding. At the same time, the rotation of the second sliding wheel 539 within the cavity of the limiting frame 538 can cooperate with the ball 513 to transport the cable rope 3, thereby protecting the cable rope 3, ensuring the integrity of the cable rope 3 during subsequent construction, and thus improving the tensioning quality. Example

[0030] Please see Figure 9As shown, the moving component 6 includes a moving trolley 61. A second track wheel 62 is rotatably connected to the bottom end of the moving trolley 61. A second threaded rod 63 is rotatably connected to the upper surface of the moving trolley 61. Moving blocks 64 are slidably connected to the upper surface of the second track wheel 62. There are two moving blocks 64, and the moving blocks 64 and the second threaded rod 63 are connected by threads. The threads at both ends of the second threaded rod 63 are opposite. A first clamping ring 65 and a second clamping ring 66 are fixedly installed on the upper surface of the moving blocks 64. The first clamping ring 65 and the second clamping ring 66 are respectively installed on the two moving blocks 64. The upper and lower ends of the first clamping ring 65... The outer surface is hollowed out, and the middle of the upper and lower ends of the second clamping ring 66 is hollowed out. This increases the fault tolerance of the first clamping ring 65 and the second clamping ring 66, and can fix the cable 3 of different thicknesses. The distance between the first clamping ring 65 and the second clamping ring 66 can be adjusted according to the thickness of the cable 3. By rotating the second threaded rod 63, the moving block 64 moves on the second threaded rod 63. The movement of the moving block 64 drives the first clamping ring 65 and the second clamping ring 66 to move, which facilitates the clamping of the cable 3 between the first clamping ring 65 and the second clamping ring 66 for fixation, and prevents the cable 3 from detaching from the inner cavity of the first clamping ring 65 and the second clamping ring 66.

[0031] In summary, the track slab 12 is spliced ​​according to its actual length, so that the length of the track slab 12 is slightly longer than the unfolded length of the cable 3. The moving component 6 moves by sliding on the track bar 13, ensuring that the position of the moving component 6 does not shift. The limiting hole 14 is provided for fixing to the ground and can be fixed with bolts or other fasteners. When the cable 3 is unfolded, in order to prevent the cable 3 from contacting the ground, the cable 3 is placed on the first sliding wheel 410. At the same time, the height of the first sliding wheel 410 can be adjusted. The telescopic frame 49 is driven by rotating the hand lever 43. The vertical movement causes a change in the height of the first sliding wheel 410, ensuring that the cable 3 is no longer in contact with the ground. The cable 3 is limited by the straightening mechanism 51 and the limiting mechanism 53. The adjusting mechanism 52 adjusts the distance between the straightening mechanism 51 and the limiting mechanism 53 to prevent compression of the cable 3. During transport, the cable 3 is placed on the upper end of the limiting block 512 and in contact with the ball 513. The ball 513 rotates within the cavity of the limiting block 512 to facilitate the movement and transport of the cable 3. When the cable 3 deviates, it causes the limiting block 512 to shake. At this time, the first spring 516... The elastic force causes the limiting block 512 to return to its original position, ensuring that the limiting block 512 remains in the middle of the upper end of the straightening frame 511, thereby reducing the swaying caused by the movement of the cable 3. By rotating the first threaded rod 523, the limiting mechanism 53 is moved within the cavity of the second slide groove 526, facilitating the adjustment of the distance between the limiting mechanism 53 and the limiting block 512, preventing the cable 3 from falling off the top of the limiting block 512. The position of the sliding plate 531 within the cavity of the second slide groove 526 is adjusted by the adjusting mechanism 52, so that the second sliding wheel 539 is located directly above the limiting block 512. 39 can limit the pull rope 3 to prevent it from shaking up and down and detaching from the upper surface of the limiting block 512 during movement. Under the elastic force of the second spring 535 and the third spring 5311, the limiting frame 538 moves downward, so that the pull rope 3 is always kept in the inner cavity of the limiting block 512, reducing the shaking during transportation and protecting the pull rope 3 when it is unfolded. The distance between the first clamping ring 65 and the second clamping ring 66 can be adjusted according to the thickness of the pull rope 3 to facilitate the fixing of pull ropes 3 of different specifications. The traction rope on the winch 7 pulls the moving component 6 to transport and unfold the pull rope 3.

[0032] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0033] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A cable-laying device for a large-diameter, long-span tensioned beam with high vanadium cable, comprising a track assembly (1) and a winch (7), characterized in that, The upper surface of the track assembly (1) is provided with a winding cylinder (2), the outer surface of the winding cylinder (2) is wound with a cable rope (3), the upper surface of the track assembly (1) is provided with a support assembly (4), the upper surface of the track assembly (1) is provided with a limit assembly (5), the upper surface of the track assembly (1) is slidably connected with a moving assembly (6), the winch (7) is wound with a traction rope, and the traction rope is connected to the moving assembly (6); The track assembly (1) includes a fixed plate (11), the winding cylinder (2) and the fixed plate (11) are rotatably connected, a track plate (12) is sleeved on one end of the fixed plate (11), a track bar (13) is fixedly installed on the upper surface of the track plate (12), and limit holes (14) are opened on the upper surfaces of the fixed plate (11) and the track plate (12). A protrusion is fixedly connected to one end of the fixed plate (11), a protrusion is provided at one end of the track plate (12), and a groove is provided at the other end. The protrusion of the fixed plate (11) and the groove of the track plate (12) are connected end to end, and the protrusion of the track plate (12) and the groove of the track plate (12) are connected end to end. The limiting component (5) includes a correction mechanism (51), an adjustment mechanism (52) is inserted into the upper surface of the correction mechanism (51), a limiting mechanism (53) is slidably connected to the inner cavity of the adjustment mechanism (52), and a first track wheel (54) is fixedly installed at the bottom end of the correction mechanism (51), and the first track wheel (54) and the track bar (13) are tumblingly connected. The bracket assembly (4) includes a base (41), a storage shell (42) is fixedly installed on the upper surface of the base (41), a hand lever (43) is rotatably connected to the inner cavity of the storage shell (42), a worm gear (44) is fixedly connected to the outer surface of the hand lever (43), a rotating rod (45) is rotatably connected to the inner wall of the storage shell (42), a turbine (46) is fixedly connected to the outer surface of the rotating rod (45), a toothed rod (47) is slidably connected to the inner cavity of the storage shell (42), a limit rod (48) is fixedly installed on the upper surface of the storage shell (42), a telescopic frame (49) is fixedly installed at the top of the toothed rod (47), and a first sliding wheel (410) is rotatably connected to the upper inner wall of the telescopic frame (49). The correction mechanism (51) includes a correction frame (511), a limiting block (512) is provided above the correction frame (511), a ball (513) is rotatably connected to the upper inner cavity of the limiting block (512), elastic rods (514) are fixedly installed at both ends of the limiting block (512), a limiting groove (515) is opened on the upper surface of the elastic rod (514), a first spring (516) is sleeved on the outer surface of the elastic rod (514), a first insert rod (517) is fixedly installed on both sides of the top end of the correction frame (511), the first spring (516) is located between the inner wall of the correction frame (511) and the limiting block (512), and the elastic rod (514) is slidably connected to the correction frame (511) through the limiting groove (515).

2. The cable-laying device for a large-diameter, large-span tensioned beam with high vanadium cable as described in claim 1, characterized in that, The base (41) and the fixing plate (11) are fixedly connected, the worm (44) and the rotating rod (45) are engaged, the rack (47) and the rotating rod (45) are engaged, and the rack (47) and the limiting rod (48) are slidably connected.

3. The cable-laying device for a large-diameter, large-span tensioned beam with high vanadium cable as described in claim 1, characterized in that, The adjustment mechanism (52) includes a connecting frame (521). A first sliding groove (522) is provided on the lower surface of the connecting frame (521). A first threaded rod (523) is rotatably connected to the inner cavity of the first sliding groove (522). A slider (524) is slidably connected to the inner cavity of the first sliding groove (522). A first connecting strip (525) is movably connected to the bottom end of the slider (524). A second sliding groove (526) is provided on the inner walls of both sides of the connecting frame (521). A connecting block (527) is movably connected to the end of the first connecting strip (525) away from the slider (524). Slots (528) are provided on both sides of the bottom end of the connecting frame (521). The slots (528) and the first insert rod (517) are inserted into each other.

4. The cable-laying device for a large-diameter, large-span tensioned beam with high vanadium cable as described in claim 3, characterized in that, The first threaded rod (523) and the connecting frame (521) are rotatably connected. There are two sliders (524). The first threaded rod (523) and the slider (524) are connected by threads. The two ends of the first threaded rod (523) have opposite thread directions.

5. The cable-laying device for a large-diameter, large-span tensioned beam with high vanadium cable as described in claim 4, characterized in that, The limiting mechanism (53) includes a sliding plate (531), the outer surface of which is provided with an insertion hole (532). Fixed blocks (533) are fixedly installed at both ends of the lower surface of the sliding plate (531). Fixed rods (534) are fixedly installed on the outer surface of the fixed blocks (533). A second spring (535) is sleeved in the middle part of the fixed rod (534). A buffer block (536) is slidably connected to the outer surface of the fixed rod (534). A second connecting strip (537) is movably connected to the bottom end of the buffer block (536). A limiting frame (538) is movably connected to the end of the second connecting strip (537) away from the buffer block (536). A second sliding wheel (539) is rotatably connected to the inner wall of the lower end of the limiting frame (538). A second insert rod (5310) is fixedly installed on the upper surfaces of both ends of the limiting frame (538). A third spring (5311) is sleeved on the outer surface of the second insert rod (5310).

6. The cable-laying device for a large-diameter, large-span tensioned beam with high vanadium cable as described in claim 5, characterized in that, The second insertion rod (5310) passes through the fixed rod (534) and the insertion hole (532) and is inserted. There are two buffer blocks (536) and they are located at both ends of the second spring (535). The slide plate (531) and the second slide groove (526) are slidably connected. The third spring (5311) is located between the fixed rod (534) and the limit frame (538). The second sliding wheel (539) is located directly above the limit block (512). The connecting block (527) and the slide plate (531) are fixedly connected. The buffer block (536) and the slide plate (531) are slidably connected.

7. The cable-laying device for a large-diameter, large-span tensioned beam with high vanadium cable as described in claim 1, characterized in that, The moving component (6) includes a moving trolley (61), the bottom end of which is rotatably connected to a second track wheel (62), the upper surface of which is rotatably connected to a second threaded rod (63), and the upper surface of the second track wheel (62) is slidably connected to a moving block (64). There are two moving blocks (64), and the moving block (64) and the second threaded rod (63) are connected by threads. The two ends of the second threaded rod (63) have opposite threads. A first clamping ring (65) is fixedly installed on the upper surface of the moving block (64), and a second clamping ring (66) is fixedly installed on the upper surface of the moving block (64). The first clamping ring (65) and the second clamping ring (66) are respectively installed on the two moving blocks (64). The upper and lower ends of the first clamping ring (65) are hollowed out, and the middle of the upper and lower ends of the second clamping ring (66) is hollowed out.

8. A method for deploying high-vanadium cables for large-diameter, large-span tensioned beams, performed by a cable-deploying device for large-diameter, large-span tensioned beams as described in any one of claims 1-7, characterized in that... Includes the following steps: S1. Determine the cable laying route and level the ground. Before laying the cable (3), determine the cable laying route of the tension beam cable (3) according to the position of the tension beam and level the ground along the route to ensure the flatness of the ground along the route. S2. Positioning and installation of track plate (12): Install a straight track plate (12) below the projection of the tension beam structure. The track plate (12) has a reserved limiting hole (14). Splice it to a suitable length as required or fix it to the ground based on the span of the tension beam. Considering that the span of different tension beams may be different, the track plate (12) can be spliced ​​in sections. The track plates (12) are spliced ​​together with groove seams to ensure the continuity and stability of the track. After the cable (3) is extended and hoisted, the track plate (12) can be disassembled immediately and used again when the cable (3) of the tension beam in the second span is installed. S3, Fixing of the support assembly (4): In order to cooperate with the cable (3) to extend the cable, an adjustable support frame is set up. The height can be adjusted according to the cable disc or site requirements. The first sliding wheel can be used to move the cable body in a directional manner without friction. S4. Unfolding the cable (3): Under the premise of ensuring the safety of the cable reel, the cable (3) is unfolded. The winch (7) is used to pull one end of the cable (3), and the crane is used to slowly place the cable end on the moving component (6). The cable body is placed on the roller of the adjustable support frame and the cable body is moved in a direction. The moving component (6) is placed on the track. Because the cable end is heavy, the sliding trolley is made of high-strength material to ensure the load-bearing capacity. During the movement of the large-diameter cable (3) under the traction of the winch (7), as the cable body unfolds and elongates, a limiting component needs to be placed at intervals. The limiting component can stabilize the cable body and prevent it from tilting or colliding, ensuring that the cable body moves along the track until the cable (3) is completely unfurled and the cable unfolding is completed. After the cable unfolding is completed, the crane is used to lift the cable and complete the installation of the cable (3).

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