Catwalk load-bearing cable linear adjustment mechanism

Abstract

The present invention discloses a linear adjustment mechanism for load-bearing cables of a catwalk, comprising a plurality of load-bearing cables; an anchoring platform, wherein a plurality of anchoring grooves are provided on the anchoring platform, one end of the load-bearing cable is anchored on the anchoring platform and is provided with a stress detection device; the linear adjustment mechanism comprises a control module, a coarse adjustment device and a fine adjustment device, the coarse adjustment device comprises a cable fixing assembly and a first longitudinal jacking device, the fine adjustment device comprises a plurality of single-cable fixing assemblies, a fine adjustment longitudinal jacking device and a transverse jacking device, the transverse jacking device is provided with a transverse jacking unit, and a second longitudinal jacking device is provided below the transverse jacking device; wherein the control module controls the coarse adjustment device and the fine adjustment device to adjust the linear shape of each load-bearing cable in real time according to stress data measured by the stress detection device; the present invention effectively improves the safety and stability of the overall structure of the catwalk, provides a safe and stable working platform for the construction of the suspension bridge, and ensures the smooth progress of the construction of the entire suspension bridge.

Description

Technical Field

[0001] The invention relates to the technical field of suspension bridge construction, and in particular to a catwalk load-bearing cable linear adjustment mechanism. Background Art

[0002] In the construction of suspension bridges, catwalks serve as key aerial work platforms, and the accuracy and reliability of their load-bearing cable alignment are directly related to the safety and stability of the catwalk's overall structure. The catwalk's load-bearing cables not only need to bear their own weight, the catwalk's surface load, the load of construction personnel and equipment, etc., but also need to adapt to the dynamic changes of subsequent construction processes such as main cable installation, cable clamp installation, and sling installation. If the catwalk's load-bearing cable alignment deviates from the design requirements, it will lead to uneven force on the catwalk, causing local stress concentration, and then causing deformation, shaking, or even collapse of the catwalk structure, seriously threatening the lives of construction workers and affecting the progress and quality of the entire suspension bridge construction. Therefore, how to ensure that the catwalk's load-bearing cable alignment is accurately and reliably adjusted to the design requirements has become an important technical issue that needs to be urgently addressed in the field of suspension bridge construction.

[0003] Although some existing patents address the adjustment of catwalk load-bearing cable alignment, they still have numerous shortcomings. For example, Chinese patent application number 201410851141.4 discloses a method for adjusting the overall alignment of a continuous catwalk on a suspension bridge, employing alternating traction between jacks and guide chains. However, this method suffers from low adjustment accuracy, relying on manual traction of the guide chains and requiring two to three jack adjustments per stroke. This method is inefficient and difficult to achieve high-precision adjustment. Furthermore, the method lacks a real-time monitoring and feedback mechanism, making it impossible to timely monitor alignment change data during the adjustment process. This can easily lead to the final alignment deviating from design requirements due to accumulated errors.

[0004] For example, the Chinese patent application number 202410173466.5 proposes a cable adjustment device and method for the load-bearing cables of a suspension bridge catwalk. The device realizes synchronous or separate adjustment of the middle span and side span through an overall cable adjustment sliding frame and a single-cable cable adjustment drive. Although it has the overall and single-cable adjustment functions, it lacks a sophisticated coordinated control mechanism. Asynchrony is likely to occur during the adjustment of each load-bearing cable, resulting in uneven overall linearity of the catwalk, concentrated force in local areas, and increased risk of structural deformation or instability.

[0005] In response to the above problems, there is an urgent need to provide a new catwalk load-bearing cable linear adjustment mechanism, which can accurately adjust the linear shapes of several catwalk load-bearing cables at the same time, ensure the coordination between the load-bearing cables, and realize the synchronous and uniform adjustment of the load-bearing cables, so that the overall linear shape of the catwalk is more uniform and reasonable, and the force distribution is more balanced, which greatly reduces the safety risks of the catwalk structure caused by uneven force, and provides real-time feedback on the adjustment effect to ensure the accuracy of the linear adjustment of the catwalk load-bearing cables, ensure the stability of the overall linear shape of the catwalk, effectively improve the safety and stability of the overall structure of the catwalk, provide a safe and stable working platform for the construction of the suspension bridge, and ensure the smooth progress of the construction of the entire suspension bridge. Summary of the Invention

[0006] The present invention provides a catwalk load-bearing cable linear adjustment mechanism, comprising:

[0007] Several load-bearing cables;

[0008] An anchoring platform, on which a plurality of anchoring grooves for accommodating at least part of the load-bearing cable are opened, one end of the load-bearing cable is anchored on the anchoring platform and provided with a stress detection device;

[0009] The linear adjustment mechanism includes a control module, a coarse adjustment device, and a fine adjustment device. The coarse adjustment device includes a fixed cable assembly that clamps a plurality of load-bearing cables, and a first longitudinal pushing device is provided below the fixed cable assembly. The fine adjustment device includes a plurality of single-cable fixing assemblies that clamp the load-bearing cables, and a fine-adjustment longitudinal pushing device is provided below each single-cable fixing assembly. A transverse pushing device is provided below the fine-adjustment longitudinal pushing device, and a transverse pushing unit corresponding to the fine-adjustment longitudinal pushing device is provided in the transverse pushing device. A second longitudinal pushing device is provided below the transverse pushing device.

[0010] Among them, the control module controls the coarse adjustment device and the fine adjustment device to adjust the linear shape of each load-bearing cable in real time according to the stress data measured by the stress detection device.

[0011] Preferably, the single-rope fixing assembly includes an upper single fixing plate and a lower single fixing plate, both of which are recessed with a first arc-shaped groove, in which at least part of the load-bearing cable is accommodated, and single-fixing bolt assemblies are arranged in arrays on both sides of the upper single fixing plate and the lower single fixing plate, and the lower single fixing plate is extended to form a fine-adjustment cable rod corresponding to the load-bearing cable, and a fine-adjustment positioning assembly is sleeved on the load-bearing cable and the fine-adjustment cable rod.

[0012] Preferably, the fine-tuning longitudinal pushing device includes at least one first jack arranged longitudinally, the transverse pushing device includes a shell with an opening at the upper end, baffles are arranged in an array in the shell and a number of receiving slots are separated by the baffles, the transverse pushing unit includes a sliding plate slidably connected to the receiving slot, and at least one second jack for transversely pushing the sliding plate is arranged on both sides of the receiving slot, the second jack has a pushing end and the pushing end is fixedly connected to the sliding plate.

[0013] Preferably, the sliding plate has a substantially T-shaped cross-section, including an upper connecting portion and a lower sliding portion, the upper connecting portion being fixedly connected to the fine-adjustment longitudinal pushing device, the lower sliding portion being slidably connected to the receiving groove, both ends of the lower sliding portion being connected to the second jack, and the second longitudinal pushing device including at least one third jack disposed longitudinally;

[0014] Among them, a limiting protrusion is provided at the bottom of the accommodating groove, and a limiting groove corresponding to the limiting protrusion is provided at the bottom of the lower sliding portion.

[0015] Preferably, the single-fix bolt assembly includes a single-fix base plate, and arrays on both sides of the single-fix base plate are provided with single-fix threaded rods passing through the upper single-fix plate and the lower single-fix plate and single-fix nuts threadedly connected to the single-fix threaded rods.

[0016] Preferably, the cable fixing assembly includes an upper cable fixing plate and a lower cable fixing plate, both of which are recessed with a second arc-shaped groove corresponding to the load-bearing cable, at least part of the load-bearing cable is accommodated in the second arc-shaped groove, cable fixing bolt assemblies are arranged in arrays on both sides of the upper cable fixing plate and the lower cable fixing plate, a coarse adjustment cable fixing rod corresponding to the load-bearing cable is extended from the lower cable fixing plate, and a coarse adjustment positioning assembly is sleeved on the load-bearing cable and the coarse adjustment cable fixing rod.

[0017] Preferably, the first longitudinal pushing device includes at least one fourth jack arranged longitudinally.

[0018] Preferably, the fine-tuning positioning assembly includes a first U-shaped positioning member and a first positioning sleeve mounted on the first positioning member, and a first positioning nut threadedly connected to the first positioning member. A third arc-shaped groove corresponding to the load-bearing cable is provided on the lower side of the first positioning sleeve, and the first positioning nut is located on one end of the first positioning sleeve away from the third arc-shaped groove.

[0019] Preferably, the coarse adjustment positioning assembly includes a second positioning member in a "U" shape and a second positioning sleeve mounted on the second positioning member, and a second positioning nut threadedly connected to the second positioning member. A fourth arc-shaped groove corresponding to the load-bearing cable is provided on the lower side of the second positioning sleeve, and the second positioning nut is located on the end of the second positioning sleeve away from the fourth arc-shaped groove.

[0020] Preferably, an anchor fixing cable rod corresponding to the load-bearing cable is extended from the lower end of the anchoring platform corresponding to the anchoring groove, and an anchor positioning assembly is sleeved on the load-bearing cable and the anchor fixing cable rod;

[0021] Among them, the anchoring positioning assembly includes a third positioning member in a "U" shape and a third positioning sleeve mounted on the third positioning member, and a third positioning nut threadedly connected to the third positioning member. A fifth arc-shaped groove corresponding to the load-bearing rope is opened on the lower side of the third positioning sleeve, and the third positioning nut is located on the end of the third positioning sleeve away from the fifth arc-shaped groove.

[0022] The beneficial effects of the present invention are:

[0023] The present invention is equipped with a coarse adjustment device and a fine adjustment device. The coarse adjustment device clamps several load-bearing cables through a cable fixing assembly and uses a first longitudinal pushing device and a second longitudinal pushing device to perform preliminary linear adjustments, which can quickly change the overall position and approximate linear shape of the load-bearing cables. The fine adjustment device clamps a single load-bearing cable through a single cable fixing assembly and cooperates with the fine adjustment longitudinal pushing device and the transverse pushing device to perform precise longitudinal and transverse adjustments on each load-bearing cable, achieving precise control of the linear shape and meeting the strict linear requirements of the catwalk load-bearing cables under different working conditions.

[0024] The control module adjusts the alignment of each load-bearing cable in real time based on stress data measured by the stress detection device. Stress data reflects the load-bearing cable's state of force. Real-time alignment adjustments ensure that the cables remain within a reasonable load range, preventing damage due to uneven force or excessive stress, and improving the safety and stability of the catwalk. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0026] In the attached figure:

[0027] Figure 1 This is a schematic diagram of the linear adjustment mechanism for the catwalk's load-bearing cables;

[0028] Figure 2 Partial diagram of the catwalk's load-bearing cable linear adjustment mechanism Figure 1 ;

[0029] Figure 3 Partial diagram of the catwalk's load-bearing cable linear adjustment mechanism Figure 2 ;

[0030] Figure 4 is a schematic diagram of a lateral pushing device;

[0031] Figure 5 is a schematic diagram of a sliding plate;

[0032] Figure 6 is a cross-sectional view of the lateral thrust device;

[0033] Figure 7 for Figure 2 A magnified schematic diagram of point A in the middle;

[0034] Figure 8 for Figure 2 A magnified schematic diagram of point B in the middle;

[0035] Figure 9 for Figure 2 Enlarged schematic diagram of point C in the middle.

[0036] In the figure: 1000, load-bearing cable; 2000, anchoring platform; 2001, anchoring groove; 2002, anchoring cable rod; 2100, anchoring positioning assembly; 2110, third positioning member; 2120, third positioning sleeve; 2121, fifth arc-shaped groove; 2130, third positioning nut; 3000, linear adjustment mechanism; 3100, coarse adjustment device; 3110, cable fixing assembly; 3111, upper cable fixing plate; 3112, lower cable fixing Plate; 3113, second arc-shaped groove; 3114, coarse adjustment cable rod; 3120, cable bolt assembly; 3130, coarse adjustment positioning assembly; 3131, second positioning member; 3132, second positioning sleeve; 3133, fourth arc-shaped groove; 3134, second positioning nut; 3140, first longitudinal pushing device; 3141, fourth jack; 3200, fine adjustment device; 3210, single cable fixing assembly; 3211, upper single fixing plate ; 3212, lower single fixing plate; 3213, fine adjustment cable rod; 3214, first arc-shaped groove; 3220, single fixing bolt assembly; 3221, single fixing bottom plate; 3222, single fixing threaded rod; 3223, single fixing nut; 3230, fine adjustment positioning assembly; 3231, first positioning member; 3232, first positioning sleeve; 3233, third arc-shaped groove; 3234, first positioning nut; 3240, fine adjustment longitudinal pushing device; 32 41. First jack; 3250. Transverse pushing device; 3251. Shell; 3252. Baffle; 3253. Accommodating groove; 3254. Limiting protrusion; 3260. Transverse pushing unit; 3261. Sliding plate; 3262. Upper connecting portion; 3263. Lower sliding portion; 3264. Limiting groove; 3265. Second jack; 3266. Pushing end; 3270. Second longitudinal pushing device; 3271. Third jack. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be described below in conjunction with the accompanying drawings of the present invention, but the described embodiments are only part of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] like Figures 1 to 9As shown, the present invention provides a catwalk load-bearing cable linear adjustment mechanism, comprising:

[0039] Several load-bearing cables 1000;

[0040] An anchoring platform 2000 is provided with a plurality of anchoring grooves 2001 for accommodating at least part of the load-bearing cable 1000. One end of the load-bearing cable 1000 is anchored on the anchoring platform 2000 and is provided with a stress detection device;

[0041] The linear adjustment mechanism 3000 includes a control module, a coarse adjustment device 3100, and a fine adjustment device 3200. The coarse adjustment device 3100 includes a cable fixing assembly 3110 that clamps a plurality of load-bearing cables 1000. A first longitudinal pushing device 3140 is disposed below the cable fixing assembly 3110. The fine adjustment device 3200 includes a plurality of single-cable fixing assemblies 3210 that clamp the load-bearing cables 1000. A fine-adjustment longitudinal pushing device 3240 is disposed below each single-cable fixing assembly 3210. A transverse pushing device 3250 is disposed below the fine-adjustment longitudinal pushing device 3240. The transverse pushing device 3250 includes a transverse pushing unit 3260 corresponding to the fine-adjustment longitudinal pushing device 3240. A second longitudinal pushing device 3270 is disposed below the transverse pushing device 3250.

[0042] The control module controls the coarse adjustment device 3100 and the fine adjustment device 3200 to adjust the linear shape of each load-bearing cable 1000 in real time according to the stress data measured by the stress detection device.

[0043] In this embodiment, the catwalk's load-bearing cable linear adjustment mechanism primarily consists of several load-bearing cables 1000, anchoring platforms 2000, a linear adjustment mechanism 3000 comprising a control module, a coarse adjustment device 3100, a fine adjustment device 3200, and various positioning components. Its core function is to precisely adjust the linear shape of each load-bearing cable 1000 in real time, based on data from a stress detection device, through the coordinated operation of these components, ensuring the stability and reliability of the catwalk structure.

[0044] Specifically, the anchoring platform 2000 is provided with several anchoring slots 2001. The shape and dimensions of these slots 2001 are designed according to the specifications of the load-bearing cable 1000, ensuring that they can securely accommodate at least a portion of the load-bearing cable 1000. Anchor rods 2002 corresponding to the load-bearing cable 1000 extend from the lower ends of the anchoring platforms 2000, corresponding to the anchoring slots 2001. The anchoring platform 2000 serves as the fixed end of the load-bearing cable 1000, providing a stable anchoring point for the load-bearing cable 1000 and transmitting the tensile forces exerted on the load-bearing cable 1000 to the substructure. The anchor rods 2002 further secure the load-bearing cable 1000, preventing it from slipping or loosening under load. Through the reasonable design of the anchoring groove 2001 and the anchor fixing cable rod 2002, the reliable connection of the load-bearing cable 1000 at the anchoring end is guaranteed, providing a stable basic support for the entire catwalk structure and effectively avoiding structural safety hazards caused by loose anchoring.

[0045] The stress detection device is installed at the end of the load-bearing cable 1000 anchored to the anchor platform 2000. It can use a high-precision strain gauge or fiber Bragg grating sensor. The strain gauge is firmly bonded to the surface of the load-bearing cable 1000 with a special adhesive, accurately sensing minute strain changes in the cable 1000. The fiber Bragg grating sensor utilizes the photosensitivity of optical fiber to reflect the stress state of the load-bearing cable 1000 by measuring changes in the grating wavelength.

[0046] In this embodiment, a stress detection device monitors the stress data of the load-bearing cables 1000 in real time and transmits this data to the control module. Stress data is a key indicator of the load-bearing cables 1000's stress state and the safety of the catwalk structure. Accurate stress measurement can promptly detect abnormalities such as overload or fatigue damage in the load-bearing cables 1000. The highly precise stress detection device provides accurate and reliable stress data, providing a scientific basis for the control module to adjust the alignment of the load-bearing cables 1000 in real time, ensuring that the catwalk structure remains in a safe operating condition.

[0047] Specifically, the control module can be a programmable logic controller (PLC) or industrial computer, equipped with powerful data processing and control capabilities. It connects to the stress detection device via a data acquisition interface to receive stress data. It also connects to the drive components of the coarse adjustment device 3100 and the fine adjustment device 3200 via a control output interface, enabling precise control of each device.

[0048] As the core of the linear adjustment mechanism 3000, the control module analyzes and processes stress data transmitted by the stress detection device using a pre-set control algorithm to determine whether the linear shape of each load-bearing cable 1000 requires adjustment, and the extent of the adjustment. It then issues corresponding control commands to the coarse adjustment device 3100 and the fine adjustment device 3200, enabling real-time and precise adjustment of the linear shape of the load-bearing cables 1000. The control module enables rapid and accurate data processing and intelligent control, dynamically adjusting the linear shape of the load-bearing cables 1000 based on the actual stress conditions of the catwalk structure. This effectively improves the adaptability and stability of the catwalk, reduces manual intervention, and increases work efficiency.

[0049] In order to achieve precise scheduling of the coarse and fine adjustment devices by the control module, a clear stress data threshold range is set based on the material properties, design stress and construction safety specifications of the load-bearing cables.

[0050] Considering the commonly used materials and construction experience of load-bearing cables for suspension bridge catwalks, such as high-strength galvanized steel wire ropes, the nominal tensile strength is usually 1670MPa~1860MPa. The stress thresholds are divided as follows:

[0051] The design basis stress σ0 is based on the rated working stress in the design documents of the load-bearing cable, and is usually taken as 50%~60% of its material yield strength. For example: for a steel wire rope with a tensile strength of 1860MPa, the yield strength is approximately 1116MPa to 1302MPa, and the design basis stress σ0 can be set to 558MPa to 781MPa. The specific value is determined according to the actual project.

[0052] The starting threshold σ1 of the coarse adjustment device is designed. When the stress data measured by the stress detection device meets the following conditions, the coarse adjustment device is triggered to work:

[0053] The stress value is greater than σ0 + 15%σ0, which means it exceeds the design stress by more than 15%, and there is an overload risk;

[0054] The stress value is less than σ0-15%σ0, that is, it is more than 15% lower than the design stress, and there is a risk of linear relaxation and excessive sag.

[0055] The fine-tuning device startup threshold σ2 is designed. When the stress data measured by the stress detection device meets the following conditions, the fine-tuning device is triggered to work:

[0056] The stress value is in the range of σ0 +5%σ0 to σ0 +15%σ0, which means slight overload, and precise fine-tuning is required to eliminate local stress concentration;

[0057] The stress value is in the range of σ0 -15%σ0 to σ0 -5%σ0, which means slight relaxation and requires precise fine-tuning to restore the linear shape.

[0058] Design a safety threshold σ_security. When the stress value is greater than 1.2 times the yield strength or less than 0.3 times σ_0, the control module immediately triggers an alarm and pauses the adjustment, and manual intervention is required for troubleshooting to avoid excessive stress on the load-bearing cable resulting in fracture or severe slack instability.

[0059] Among them, for the working logic of the coarse adjustment device, when the stress data exceeds the coarse adjustment threshold σ_1, the control module preferentially activates the coarse adjustment device: the cable fixing assembly synchronously clamps multiple load-bearing cables, and a longitudinal thrust is applied through the first longitudinal pushing device to quickly adjust the overall sag and tension of the multiple load-bearing cables, making the stress data approach σ_0. The adjustment range is usually 50 mm to 200 mm, and it is dynamically controlled according to the deviation amount specifically;

[0060] During the coarse adjustment process, the stress detection device real-time feeds back data. When the stress enters the fine adjustment threshold σ_2 range, the coarse adjustment device stops working and switches to the fine adjustment mode.

[0061] Among them, for the working logic of the fine adjustment device, when the stress data is within the fine adjustment threshold σ_2 range, the control module activates the fine adjustment device: for a single load-bearing cable, it is precisely clamped through the single-cable fixing assembly, and a longitudinal fine adjustment of ±0.5 mm to ±10 mm is performed by the fine adjustment longitudinal pushing device to eliminate the longitudinal stress deviation;

[0062] If there is uneven lateral stress, such as the stress deviation caused by the deviation of the spacing between adjacent load-bearing cables, the second jack of the lateral pushing device pushes the sliding plate,带动 the single-cable fixing assembly to perform a lateral fine adjustment of ±0.3 mm to ±5 mm to ensure that the spatial position of each load-bearing cable is consistent with the designed linear shape; [[ID=!13]]

[0063] During the fine adjustment process, the second longitudinal pushing device can assist in adjusting the overall longitudinal position of the lateral pushing device to provide a more flexible operation space for the fine adjustment.

[0064] [[ID=!18]]The control module achieves seamless switching between coarse adjustment and fine adjustment through a preset algorithm: during initial installation or significant load changes, the coarse adjustment device is preferentially activated to quickly calibrate the overall linear shape. For example, after a large area of construction materials is stacked;

[0065] During daily construction or minor load fluctuations, only the fine adjustment device is activated for precise correction to reduce energy consumption and mechanical wear;

[0066] When the stress data approaches the safety threshold σ_security, the control module immediately issues an alarm signal and simultaneously activates the emergency adjustment procedure, such as emergency coarse adjustment unloading, to ensure structural safety.

[0067] In this embodiment, the first longitudinal thrust device 3140 includes at least one longitudinally disposed fourth jack 3141. This fourth jack 3141 can be a hydraulic jack, characterized by high thrust force, adjustable travel, and high control precision. Its bottom is fixed to the base structure, and its top is connected to the lower cable fixing plate 3112 or the coarse cable adjustment rod 3114 of the cable fixing assembly 3110.

[0068] According to the instructions of the control module, the fourth jack 3141 generates a longitudinal thrust through telescopic movement, pushing the fixed cable assembly 3110 and the several clamped load-bearing cables 1000 to move as a whole in the longitudinal direction, thereby achieving preliminary rough adjustment of the linear shape of the load-bearing cables 1000.

[0069] The fourth jack 3141 can provide a large thrust force to meet the needs of coarse adjustment of several load-bearing cables 1000. Its adjustable stroke function makes the adjustment process more flexible, and can accurately control the longitudinal movement distance of the load-bearing cables 1000 according to actual conditions, improving the efficiency of coarse adjustment.

[0070] like Figures 1 to 3 As shown, in this embodiment, the single-cable fixing assembly 3210 includes an upper single fixing plate 3211 and a lower single fixing plate 3212. The upper single fixing plate 3211 and the lower single fixing plate 3212 are both recessed with a first arc-shaped groove 3214. At least part of the load-bearing cable 1000 is accommodated in the first arc-shaped groove 3214. Single fixing bolt assemblies 3220 are arranged in an array on both sides of the upper single fixing plate 3211 and the lower single fixing plate 3212. The lower single fixing plate 3212 extends to form a fine-adjustment cable rod 3213 corresponding to the load-bearing cable 1000, and a fine-adjustment positioning assembly 3230 is sleeved on the load-bearing cable 1000 and the fine-adjustment cable rod 3213.

[0071] In this embodiment, the single-fixed bolt assembly 3220 includes a single-fixed base plate 3221, and on both sides of the single-fixed base plate 3221 there are arrays of single-fixed threaded rods 3222 passing through the upper single-fixed plate 3211 and the lower single-fixed plate 3212 and single-fixed nuts 3223 threadedly connected to the single-fixed threaded rods 3222.

[0072] In this embodiment, the upper and lower single-fixing plates 3211 and 3212 clamp and secure individual load-bearing cables 1000 via first arcuate grooves 3214, enabling individual positioning and securing of each load-bearing cable 1000. The single-fixing bolt assembly 3220 ensures a tight fit between the upper and lower single-fixing plates 3211 and 3212, providing sufficient clamping force to prevent the load-bearing cables 1000 from slipping during fine-tuning. The fine-tuning cable-fixing rod 3213 and fine-tuning positioning assembly 3230 further precisely secure the position of the load-bearing cables 1000, providing stable support and a positioning reference for fine-tuning the longitudinal and transverse thrusting devices 3240 and 3250.

[0073] The design of the single-cable fixing assembly 3210 enables independent fine-tuning of each load-bearing cable 1000, improving adjustment flexibility and precision. The use of the fine-adjustment positioning assembly 3230 effectively reduces displacement errors during fine-tuning of the load-bearing cables 1000, ensuring that the adjusted alignment meets design requirements.

[0074] like Figure 2 、 Figure 3 and Figure 9 As shown, in this embodiment, the fine-tuning positioning assembly 3230 includes a first positioning member 3231 in a "U" shape and a first positioning sleeve 3232 mounted on the first positioning member 3231, and a first positioning nut 3234 threadedly connected to the first positioning member 3231. A third arc-shaped groove 3233 corresponding to the load-bearing rope 1000 is provided on the lower side of the first positioning sleeve 3232, and the first positioning nut 3234 is located on the end of the first positioning sleeve 3232 away from the third arc-shaped groove 3233.

[0075] Specifically, the fine adjustment positioning assembly 3230 includes a U-shaped first positioning member 3231, a first positioning sleeve 3232 that fits over the first positioning member 3231, and a first positioning nut 3234 that is threadedly connected to the first positioning member 3231. A third arcuate slot 3233 corresponding to the load-bearing cable 1000 is defined on the underside of the first positioning sleeve 3232. The first positioning nut 3234 is located on the end of the first positioning sleeve 3232 that is away from the third arcuate slot 3233.

[0076] In this embodiment, the first positioning member 3231 is clamped on the fine-adjustment cable rod 3213 through its "U"-shaped structure, and the first positioning sleeve 3232 is tightly fitted with the load-bearing cable 1000 through the third arc-shaped groove 3233. The first positioning nut 3234 is tightened to fix the first positioning sleeve 3232 on the first positioning member 3231, thereby firmly positioning the load-bearing cable 1000 on the fine-adjustment cable rod 3213 to prevent the load-bearing cable 1000 from being displaced during the fine-adjustment process.

[0077] Among them, the fine-tuning positioning component 3230 has a simple structure and is easy to operate, and can effectively fix the position of the load-bearing cable 1000 and improve the accuracy and stability of fine-tuning.

[0078] like Figures 1 to 3As shown, in this embodiment, the fine-tuning longitudinal pushing device 3240 includes at least one longitudinally arranged first jack 3241, the transverse pushing device 3250 includes a shell 3251 with an opening at the upper end, baffles 3252 are arranged in an array in the shell 3251 and a plurality of receiving grooves 3253 are separated by the baffles 3252, the transverse pushing unit 3260 includes a sliding plate 3261 slidingly connected to the receiving groove 3253, and at least one second jack 3265 with a transverse pushing sliding plate 3261 is arranged on both sides of the receiving groove 3253, the second jack 3265 has a pushing end 3266 and the pushing end 3266 is fixedly connected to the sliding plate 3261.

[0079] Specifically, the fine-adjustment longitudinal thrusting device 3240 includes at least one longitudinally mounted first jack 3241. This first jack 3241 also utilizes a hydraulic jack, and its performance characteristics are similar to those of the fourth jack 3141, but with higher precision requirements. The bottom of the first jack 3241 is fixed to the sliding plate 3261 of the transverse thrusting device 3250, and its top is connected to the lower single fixing plate 3212 of the single-cable fixing assembly 3210 or the fine-adjustment fixed-cable rod 3213.

[0080] In this embodiment, according to the instructions of the control module, the first jack 3241 generates a longitudinal thrust through precise telescopic movement, pushing the single-cable fixing assembly 3210 and the clamped single load-bearing cable 1000 to move slightly in the longitudinal direction, thereby achieving precise fine-tuning of the linear shape of the load-bearing cable 1000.

[0081] Among them, the high-precision control of the first jack 3241 can meet the needs of slight adjustments to the linear shape of the load-bearing cable 1000, ensuring that the linear shape of each load-bearing cable 1000 meets the design accuracy and improves the stability and flatness of the overall structure of the catwalk.

[0082] like Figures 4 to 6 As shown, in this embodiment, the sliding plate 3261 has a substantially T-shaped cross-section, including an upper connecting portion 3262 and a lower descending portion 3263. The upper connecting portion is fixedly connected to the fine-adjustment longitudinal pushing device 3240, and the lower descending portion 3263 is slidably connected to the receiving groove 3253. Both ends of the lower descending portion 3263 are connected to the second jack 3265. The second longitudinal pushing device 3270 includes at least one third jack 3271 arranged longitudinally.

[0083] A limiting protrusion 3254 is provided at the bottom of the accommodating groove 3253 , and a limiting groove 3264 corresponding to the limiting protrusion 3254 is provided at the bottom of the lower sliding portion 3263 .

[0084] In this embodiment, the transverse thrusting device 3250 includes a housing 3251 with an opening at its upper end. Within the housing 3251, a plurality of receiving slots 3253 are arranged in an array, separated by baffles 3252. The transverse thrusting unit 3260 includes a sliding plate 3261 slidably connected to the receiving slots 3253. The sliding plate 3261 has a generally T-shaped cross-section and includes an upper connecting portion 3262 fixedly connected to the fine-adjustment longitudinal thrusting device 3240 and a lower descending portion 3263 slidably connected to the receiving slot 3253. Both ends of the lower descending portion 3263 are connected to second jacks 3265. At least one second jack 3265 is disposed on either side of the receiving slot 3253 to laterally thrust the sliding plate 3261. The second jack 3265 has a thrusting end 3266 fixedly connected to the sliding plate 3261. A limiting protrusion 3254 is provided at the bottom of the accommodating groove 3253 , and a limiting groove 3264 corresponding to the limiting protrusion 3254 is provided at the bottom of the lower sliding portion 3263 .

[0085] Specifically, the housing 3251 and baffle 3252 form the basic framework of the lateral thrusting device 3250, providing installation space and support for the sliding plate 3261 and the second jack 3265. The second jack 3265, in response to commands from the control module, generates a lateral thrust through telescopic movement, pushing the sliding plate 3261 laterally within the receiving slot 3253. Because the sliding plate 3261 is fixedly connected to the fine-adjustment longitudinal thrusting device 3240, it drives the fine-adjustment longitudinal thrusting device 3240, the single-cable fixing assembly 3210, and the clamped load-bearing cable 1000 to move laterally, achieving lateral adjustment of the load-bearing cable 1000's linear shape. The coordinated use of the limiting protrusion 3254 and limiting slot 3264 limits the lateral movement range of the sliding plate 3261, preventing abnormalities such as derailment during the thrusting process and ensuring the safety and stability of lateral adjustment.

[0086] The design of the lateral thrust device 3250 enables precise lateral adjustment of the load-bearing cable 1000, further optimizing the linear shape of the load-bearing cable 1000. The rational layout of the second jack 3265 and the provision of a limiter ensure smooth and reliable lateral adjustment, improving adjustment accuracy and safety.

[0087] In this embodiment, the second longitudinal pushing device 3270 includes at least one longitudinally arranged third jack 3271. The bottom of the third jack 3271 is fixed to the base structure, and the top is connected to the bottom of the housing 3251 of the transverse pushing device 3250.

[0088] Specifically, according to the instructions of the control module, the third jack 3271 generates a longitudinal thrust through telescopic movement, pushing the entire lateral thrust device 3250 and the fine-adjustment device 3200 and the single-cable fixing assembly 3210 thereon to move as a whole in the longitudinal direction, thereby realizing the longitudinal position adjustment of the fine-adjustment device 3200 and providing a suitable operating position for lateral adjustment and longitudinal fine-adjustment.

[0089] Among them, the setting of the third jack 3271 increases the flexibility of the linear adjustment mechanism 3000, so that the fine-tuning device 3200 can be adjusted within a larger longitudinal range, meeting the needs of linear adjustment of the load-bearing rope 1000 under different working conditions.

[0090] like Figures 1 to 3 As shown, in this embodiment, the cable fixing assembly 3110 includes an upper cable fixing plate 3111 and a lower cable fixing plate 3112, and the upper cable fixing plate 3111 and the lower cable fixing plate 3112 are both recessed with a second arcuate groove 3113 corresponding to the load-bearing cable 1000, and at least part of the load-bearing cable 1000 is accommodated in the second arcuate groove 3113, and cable fixing bolt assemblies 3120 are arranged in an array on both sides of the upper cable fixing plate 3111 and the lower cable fixing plate 3112, and a coarse adjustment cable fixing rod 3114 corresponding to the load-bearing cable 1000 is extended from the lower cable fixing plate 3112, and a coarse adjustment positioning assembly 3130 is sleeved on the load-bearing cable 1000 and the coarse adjustment cable fixing rod 3114.

[0091] Specifically, the cable fixing assembly 3110 includes an upper cable fixing plate 3111 and a lower cable fixing plate 3112. Both the upper and lower cable fixing plates 3111 and 3112 are recessed with a second arcuate groove 3113 corresponding to the load-bearing cable 1000, and at least a portion of the load-bearing cable 1000 is accommodated in the second arcuate groove 3113. Cable fixing bolt assemblies 3120 are arranged in arrays on both sides of the upper and lower cable fixing plates 3111 and 3112. The structure of the cable fixing bolt assembly 3120 is similar to that of the single fixing bolt assembly 3220, and includes a cable fixing base plate. On both sides of the cable fixing base plate are arrays of cable fixing threaded rods that penetrate the upper and lower cable fixing plates 3111 and 3112, and cable fixing nuts that are threadedly connected to the cable fixing threaded rods. A coarse adjustment cable rod 3114 corresponding to the load-bearing cable 1000 is extended from the lower cable fixing plate 3112 , and a coarse adjustment positioning assembly 3130 is sleeved on the load-bearing cable 1000 and the coarse adjustment cable rod 3114 .

[0092] In this embodiment, the upper and lower cable-holding plates 3111 and 3112 clamp and secure several load-bearing cables 1000 together via the second arcuate grooves 3113, achieving initial positioning and securing of the load-bearing cables 1000. Tightening the cable-holding nuts, the cable-holding bolt assemblies 3120 securely fit the upper and lower cable-holding plates 3111 and 3112, enhancing the clamping force on the load-bearing cables 1000 and preventing them from slipping during coarse adjustment. The coarse-adjustment cable-holding rods 3114 and the coarse-adjustment positioning assembly 3130 further secure the position of the load-bearing cables 1000 and provide a stable support point for the first longitudinal thrusting device 3140, facilitating coarse longitudinal adjustment of the load-bearing cables 1000.

[0093] In this embodiment, the rational design of the cable-holding assembly 3110 reliably clamps several load-bearing cables 1000, ensuring overall stability of the load-bearing cables 1000 during the coarse adjustment process, laying the foundation for subsequent precise adjustment. The use of the coarse adjustment positioning assembly 3130 improves the positioning accuracy of the load-bearing cables 1000 and reduces errors during the adjustment process.

[0094] like Figure 2 、 Figure 3 and Figure 8 As shown, in this embodiment, the coarse adjustment positioning assembly 3130 includes a second positioning member 3131 in a "U" shape and a second positioning sleeve 3132 mounted on the second positioning member 3131, and a second positioning nut 3134 threadedly connected to the second positioning member 3131. A fourth arc-shaped groove 3133 corresponding to the load-bearing rope 1000 is provided on the lower side of the second positioning sleeve 3132, and the second positioning nut 3134 is located on the end of the second positioning sleeve 3132 away from the fourth arc-shaped groove 3133.

[0095] Specifically, the coarse adjustment positioning assembly 3130 includes a U-shaped second positioning member 3131, a second positioning sleeve 3132 that fits over the second positioning member 3131, and a second positioning nut 3134 that is threadedly connected to the second positioning member 3131. A fourth arcuate slot 3133 corresponding to the load-bearing cable 1000 is defined on the underside of the second positioning sleeve 3132. The second positioning nut 3134 is located on the end of the second positioning sleeve 3132 that is away from the fourth arcuate slot 3133.

[0096] Similar to the fine adjustment positioning assembly 3230, the coarse adjustment positioning assembly 3130 fixes the load-bearing cable 1000 on the coarse adjustment cable rod 3114 through the "U"-shaped structure of the second positioning member 3131 and the fourth arc groove 3133 of the second positioning sleeve 3132, providing stable positioning for the coarse adjustment device 3100 and ensuring the accurate position of the load-bearing cable 1000 during the coarse adjustment process.

[0097] Among them, the coarse adjustment positioning component 3130 ensures the positioning accuracy of the load-bearing cable 1000 during the coarse adjustment process, reduces the adjustment error caused by the position offset of the load-bearing cable 1000, and improves the coarse adjustment efficiency and quality.

[0098] like Figures 1 to 3 ,and Figure 7 As shown, in this embodiment, an anchor cable rod 2002 corresponding to the load-bearing cable 1000 is extended from the lower end of the anchoring platform 2000 corresponding to the anchoring groove 2001, and an anchor positioning assembly 2100 is sleeved on the load-bearing cable 1000 and the anchor cable rod 2002;

[0099] Among them, the anchoring positioning assembly 2100 includes a third positioning member 2110 in a "U" shape and a third positioning sleeve 2120 mounted on the third positioning member 2110, and a third positioning nut 2130 threadedly connected to the third positioning member 2110. A fifth arc-shaped groove 2121 corresponding to the load-bearing rope 1000 is opened on the lower side of the third positioning sleeve 2120, and the third positioning nut 2130 is located on the end of the third positioning sleeve 2120 away from the fifth arc-shaped groove 2121.

[0100] Specifically, the anchoring assembly 2100 includes a U-shaped third positioning member 2110, a third positioning sleeve 2120 that fits over the third positioning member 2110, and a third positioning nut 2130 that is threadedly connected to the third positioning member 2110. A fifth arcuate groove 2121 corresponding to the load-bearing cable 1000 is defined on the underside of the third positioning sleeve 2120, and the third positioning nut 2130 is located on the end of the third positioning sleeve 2120 that is away from the fifth arcuate groove 2121.

[0101] In this embodiment, the anchor positioning assembly 2100 fixes the load-bearing cable 1000 on the anchor cable rod 2002 through the "U"-shaped structure of the third positioning piece 2110 and the fifth arc-shaped groove 2121 of the third positioning sleeve 2120, further enhancing the fixing effect of the load-bearing cable 1000 at the anchoring end, preventing the load-bearing cable 1000 from loosening or sliding during the force-bearing process, and ensuring the reliability of the anchoring.

[0102] Among them, the use of the anchoring positioning component 2100 improves the stability of the anchoring end of the load-bearing cable 1000, provides a solid foundation for the entire catwalk structure, and effectively avoids safety accidents caused by anchoring problems.

[0103] The present invention has many application scenarios, including but not limited to the following description scenarios:

[0104] During the construction of large suspension or cable-stayed bridges, catwalks are crucial temporary construction facilities, used for operations such as main cable installation, cable tensioning, and cable clamp installation. The linear accuracy of the catwalk's load-bearing cables directly impacts the stability and construction safety of the catwalk, as well as the quality of subsequent main cable installation. This catwalk's load-bearing cable linear adjustment mechanism precisely adjusts the cable's shape, ensuring the catwalk maintains a stable alignment under various construction loads and environmental conditions, providing a reliable platform for bridge construction.

[0105] In addition to bridge catwalks, some aerial work platforms, such as those used for curtain wall installation in large buildings and for maintenance of power towers, also require load-bearing cables to support the platform structure. During operation, these platforms may be affected by various factors, including wind loads, personnel and equipment loads, which can cause the alignment of the load-bearing cables to change. This linear adjustment mechanism monitors and adjusts the alignment of the load-bearing cables in real time, ensuring the safety and stability of the aerial work platform and providing a safe working environment for construction workers.

[0106] In cableway transportation systems, such as tourist and freight cableways, the alignment of the load-bearing cables is crucial to safe and comfortable operation. Over time, the cables may experience wear, loosening, and other factors that lead to linear deviations. This linear adjustment mechanism conveniently monitors and adjusts the cables, restoring their proper alignment and ensuring safe operation of the cableway system.

[0107] In some specialized engineering structures, such as the cable-suspended roofs of large stadiums and the support structures of large billboards, precise control of the linear shape of the load-bearing cables may be required to ensure structural stability and aesthetics. This catwalk's linear shape adjustment mechanism can be modified and adjusted based on specific project requirements, ensuring the safety and stability of these structures.

Claims

1. A catwalk load-bearing cable linear adjustment mechanism, characterized in that: include: Several load-bearing cables; An anchoring platform, on which a plurality of anchoring grooves for accommodating at least part of the load-bearing cable are opened, one end of the load-bearing cable is anchored on the anchoring platform and provided with a stress detection device; The linear adjustment mechanism includes a control module, a coarse adjustment device, and a fine adjustment device. The coarse adjustment device includes a fixed cable assembly that clamps a plurality of load-bearing cables, and a first longitudinal pushing device is provided below the fixed cable assembly. The fine adjustment device includes a plurality of single-cable fixing assemblies that clamp the load-bearing cables, and a fine-adjustment longitudinal pushing device is provided below each single-cable fixing assembly. A transverse pushing device is provided below the fine-adjustment longitudinal pushing device, and a transverse pushing unit corresponding to the fine-adjustment longitudinal pushing device is provided in the transverse pushing device. A second longitudinal pushing device is provided below the transverse pushing device. The control module controls the coarse adjustment device and the fine adjustment device to adjust the linear shape of each load-bearing cable in real time according to the stress data measured by the stress detection device; The single-cable fixing assembly includes an upper single fixing plate and a lower single fixing plate, each of which is concavely provided with a first arc-shaped groove, in which at least part of the load-bearing cable is accommodated, and single fixing bolt assemblies are arranged in an array on both sides of the upper single fixing plate and the lower single fixing plate, and the lower single fixing plate is extended to form a fine-adjustment cable rod corresponding to the load-bearing cable, and a fine-adjustment positioning assembly is sleeved on the load-bearing cable and the fine-adjustment cable rod; The fine-tuning longitudinal pushing device includes at least one first jack disposed longitudinally, the transverse pushing device includes a housing with an opening at the upper end, a baffle plate arrayed in the housing and a plurality of receiving slots separated by the baffle plate, the transverse pushing unit includes a sliding plate slidably connected to the receiving slot, and at least one second jack is disposed on both sides of the receiving slot to push the sliding plate transversely, the second jack having a pushing end fixedly connected to the sliding plate; The single-fix bolt assembly includes a single-fix base plate, and arrays on both sides of the single-fix base plate are provided with single-fix threaded rods passing through the upper single-fix plate and the lower single-fix plate, and single-fix nuts threadedly connected to the single-fix threaded rods; Among them, the cable fixing assembly includes an upper cable fixing plate and a lower cable fixing plate, and the upper cable fixing plate and the lower cable fixing plate are both provided with a second arc-shaped groove corresponding to the load-bearing cable, and at least part of the load-bearing cable is accommodated in the second arc-shaped groove. Cable fixing bolt assemblies are arranged in arrays on both sides of the upper cable fixing plate and the lower cable fixing plate, and a coarse adjustment cable fixing rod corresponding to the load-bearing cable is extended from the lower cable fixing plate, and a coarse adjustment positioning assembly is sleeved on the load-bearing cable and the coarse adjustment cable fixing rod.

2. The catwalk load-bearing cable linear adjustment mechanism according to claim 1, characterized in that: The sliding plate has a generally T-shaped cross-section, including an upper connecting portion and a lower sliding portion, the upper connecting portion being fixedly connected to the fine-adjustment longitudinal pushing device, the lower sliding portion being slidably connected to the receiving slot, both ends of the lower sliding portion being connected to the second jack, and the second longitudinal pushing device including at least one third jack disposed longitudinally; Among them, a limiting protrusion is provided at the bottom of the accommodating groove, and a limiting groove corresponding to the limiting protrusion is provided at the bottom of the lower sliding portion.

3. The catwalk load-bearing cable linear adjustment mechanism according to claim 1, characterized in that: The first longitudinal pushing device includes at least one fourth jack arranged longitudinally.

4. The catwalk load-bearing cable linear adjustment mechanism according to claim 1, characterized in that: The fine-tuning positioning assembly includes a first U-shaped positioning piece and a first positioning sleeve mounted on the first positioning piece, and a first positioning nut threadedly connected to the first positioning piece. A third arc-shaped groove corresponding to the load-bearing cable is provided on the lower side of the first positioning sleeve, and the first positioning nut is located on one end of the first positioning sleeve away from the third arc-shaped groove.

5. The catwalk load-bearing cable linear adjustment mechanism according to claim 1, characterized in that: The coarse adjustment positioning assembly includes a second positioning member in a "U" shape and a second positioning sleeve mounted on the second positioning member, and a second positioning nut threadedly connected to the second positioning member. A fourth arc-shaped groove corresponding to the load-bearing cable is opened on the lower side of the second positioning sleeve, and the second positioning nut is located on the end of the second positioning sleeve away from the fourth arc-shaped groove.

6. The catwalk load-bearing cable linear adjustment mechanism according to claim 1, characterized in that: An anchor fixing cable rod corresponding to the load-bearing cable is extended from the lower end of the anchoring platform corresponding to the anchoring groove, and an anchor positioning component is sleeved on the load-bearing cable and the anchor fixing cable rod; Among them, the anchoring positioning assembly includes a "U"-shaped third positioning piece and a third positioning sleeve mounted on the third positioning piece, and a third positioning nut threadedly connected to the third positioning piece. A fifth arc-shaped groove corresponding to the load-bearing rope is opened on the lower side of the third positioning sleeve, and the third positioning nut is located on the end of the third positioning sleeve away from the fifth arc-shaped groove.

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