Suspension bridge catwalk main cable displacement retaining device

Abstract

The utility model relates to the technical field of bridge construction, in particular to a suspension bridge catwalk main cable displacement retaining device which comprises a main body frame, the main body frame is provided with at least two displacement cross beams, a plurality of mounting positions are arranged on the displacement cross beams, and any mounting position can be matched with a supporting pulley mechanism. The extending direction of the main cable steel wire rope is changed and kept through the limiting effect of the supporting pulley mechanism, the position, making contact with the supporting pulley mechanism, of the main cable steel wire rope is in an arc shape, and the main cable steel wire rope can be prevented from being bent; the multiple supporting pulley mechanisms are matched, the bending degree of the main cable steel wire rope at the single supporting pulley mechanism can be reduced, the main cable steel wire rope is not prone to being damaged due to bending, the service life of the catwalk main cable is prolonged, the construction safety risk is reduced, meanwhile, the number and installation positions of the supporting pulley mechanisms are adjusted, and the construction efficiency is improved. The displacement maintaining device can adapt to different environment use requirements, and the universality of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a main cable displacement maintaining device for a catwalk of a suspension bridge. Background Art

[0002] During the construction of the upper structure of a suspension bridge, temporary catwalks are often used to complete the transportation tasks of cable strands, cable tightening, installation of cable clamps and hangers, hoisting of stiffening beams and wire wrapping protection. The temporary catwalk is mainly composed of main cables, gantry cables, handrail cables, surface structure, gantry structure, tower top saddle, displacement system, transverse channel, anchoring system and other parts. During installation, the main cables of the temporary catwalk need to pass through the tower top saddle. Due to the large width of the tower top saddle, the main cables of the catwalk will conflict with the position of the tower top saddle. Therefore, in order to ensure that the main cables of the catwalk can pass through the tower top saddle smoothly, the main cables of the catwalk need to be displaced and adjusted to stagger the tower top saddle. The traditional method is to increase the spacing of the main cables of the catwalk so that the spacing of the catwalk main cables passing through the tower top saddle is increased, and the spacing after passing through the tower top saddle remains unchanged.

[0003] The traditional catwalk main cable displacement adjustment mainly adopts customized arc-shaped plates. The steel wire rope of the catwalk main cable is supported by the arc-shaped plates to form a bend, thereby increasing the distance between the catwalk main cables at the saddle on the tower top. However, since the arc-shaped plates are equivalent to a single-point bend of the steel wire rope of the catwalk main cable, it is easy to damage the steel wire rope, shorten the service life of the catwalk main cable, and pose a safety hazard. Utility Model Content

[0004] The purpose of the utility model is to overcome the technical problems in the prior art of using arc-shaped plate supports to achieve bending and displacement of the steel wire rope of the catwalk main cable, which is easy to damage the steel wire rope, affects the service life of the catwalk main cable, and has potential safety hazards, and to provide a suspension bridge catwalk main cable displacement maintaining device.

[0005] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0006] A main cable displacement and holding device for a suspension bridge catwalk comprises a main frame, wherein the main frame is provided with at least two displacement cross beams, and a plurality of installation positions are arranged on the displacement cross beams, and any of the installation positions can be adapted to install a support pulley mechanism.

[0007] The utility model discloses a main cable displacement and maintaining device for a suspension bridge catwalk, by arranging multiple supporting pulley mechanisms on a main frame, so that the main cable wire rope can change and maintain its extension direction through the limiting effect of the supporting pulley mechanisms. The cooperation of the multiple supporting pulley mechanisms can reduce the bending degree of the main cable wire rope at a single supporting pulley mechanism, so that the main cable wire rope is not easily damaged due to bending, thereby extending the service life of the catwalk main cable and reducing the construction safety risk. At the same time, the main cable wire rope is supported by the supporting pulley mechanism, and the position where the main cable wire rope contacts the supporting pulley mechanism is arc-shaped, which can avoid bending of the main cable wire rope and further avoid bending damage of the main cable wire rope. In addition, the number and installation position of the supporting pulley mechanisms can be adjusted according to actual conditions, and then the bending direction and bending degree of the main cable wire rope can be adjusted, so that the displacement and maintaining device can be adapted to the use requirements of different environments and the versatility of the device can be improved.

[0008] As a preferred solution of the utility model, the main frame includes two main cross beams, the main cross beams are parallel to the displacement cross beams, at least two main longitudinal beams are arranged between the two main cross beams, and the main longitudinal beams are vertically connected to the main cross beams. The overall structural stability of the main frame is achieved through the main cross beams and the main longitudinal beams.

[0009] As a preferred solution of the utility model, a plurality of the installation positions are arranged on the main cross beam, so as to further increase the positions on the device that can be used to change the extension direction of the main cable wire rope and expand the adjustable range of the device.

[0010] As a preferred solution of the utility model, a plurality of limiting mechanisms are arranged on the main cross beam, and the limiting mechanisms include a limiting seat and a back pressure plate, the back pressure plate is detachably connected to the limiting seat, and a limiting groove is provided on the limiting seat, so that the main frame and the main cable wire rope are connected through the limiting mechanism with the limiting groove.

[0011] As a preferred solution of the utility model, a plurality of reinforcing beams are arranged at intervals between the two main longitudinal beams. The reinforcing beams improve the structural strength of the main frame, ensure the structural stability of the device during use, and stably bear the displacement load of the catwalk main cable through the main frame.

[0012] As a preferred solution of the utility model, the supporting pulley mechanism includes a supporting seat and a pulley, and the supporting seat is provided with a connecting rod adapted to the mounting position.

[0013] As a preferred solution of the utility model, the installation position includes an installation hole. The installation position has a simple structure, and the position of the support pulley mechanism can be adjusted by simply adjusting the support pulley mechanism to connect at different installation hole positions according to actual conditions, thereby achieving displacement adjustment of the main cable wire rope.

[0014] As a preferred solution of the utility model, the displacement beam is detachably connected to the main frame, so that the position and quantity of the displacement beam relative to the main frame can be adjusted according to actual conditions, further expanding the application scope of the device.

[0015] As a preferred solution of the utility model, a plurality of connection positions for connecting the displacement beam are arranged on the main frame to facilitate the installation and connection of the displacement beam on the main frame.

[0016] As a preferred solution of the utility model, a plurality of displacement beams are concentratedly distributed near the main beam to optimize the device structure so that the main cable wire rope can be adjusted and maintained in the extension direction only at the position of entering and exiting the device.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The utility model is a suspension bridge catwalk main cable displacement holding device, which is provided with a plurality of support pulley mechanisms on the main frame, so that the main cable wire rope can change and maintain the extension direction through the limiting effect of the support pulley mechanism. The cooperation of the plurality of support pulley mechanisms can reduce the bending degree of the main cable wire rope at a single support pulley mechanism, so that the main cable wire rope is not easily damaged due to bending, thereby extending the service life of the catwalk main cable and reducing the construction safety risk;

[0019] 2. The utility model provides a main cable displacement holding device for a suspension bridge catwalk, which supports the main cable wire rope through a supporting pulley mechanism. The position where the main cable wire rope contacts the supporting pulley mechanism is arc-shaped, which can prevent the main cable wire rope from bending, and further prevent the main cable wire rope from being damaged by bending;

[0020] 3. The utility model provides a main cable displacement retaining device for a suspension bridge catwalk, which can adjust the number and installation position of the supporting pulley mechanisms according to actual conditions, and further adjust the bending direction and degree of the main cable steel wire rope, so as to achieve the adaptation of the displacement retaining device to the use requirements of different environments and improve the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a main cable displacement retaining device for a suspension bridge catwalk of the utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of a main cable displacement retaining device for a suspension bridge catwalk of the utility model. Figure 2 ;

[0023] Figure 3 This is a schematic structural diagram of a suspension bridge catwalk main cable displacement retaining device according to Example 4;

[0024] Figure 4This is a structural schematic diagram of a suspension bridge catwalk main cable displacement maintaining device according to Example 3;

[0025] Figure 5 is a schematic structural diagram of the limiting mechanism described in Example 3;

[0026] Figure 6 is a structural schematic diagram of the support pulley mechanism described in Example 1;

[0027] Markings in the figure: 1-main frame, 11-main crossbeam, 12-main longitudinal beam, 13-connecting position, 2-displacement crossbeam, 21-installation position, 3-support pulley mechanism, 31-support seat, 32-pulley, 33-connecting rod, 4-reinforcement beam, 5-limiting mechanism, 51-limiting seat, 52-back pressure plate, 53-limiting groove, 6-main cable wire rope. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in combination with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0029] In the description of the specific embodiments of the present invention, unless otherwise specified, the terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the product / equipment / device of the utility model when it is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0030] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding devices / components / elements are within the error / deviation range, they can still achieve their functions in the solution of the utility model.

[0031] In addition, the expressions “first”, “second”, “third”, etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0032] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0033] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0034] Example 1

[0035] like Figure 1-Figure 4 As shown, a main cable displacement and maintaining device for a suspension bridge catwalk comprises a main frame 1, wherein the main frame 1 is provided with at least two displacement beams 2, and a plurality of installation positions 21 are arranged on the displacement beams 2, and any of the installation positions 21 can be adapted to install a supporting pulley mechanism 3.

[0036] A suspension bridge catwalk main cable displacement holding device according to this embodiment, such as Figure 1As shown, the main frame 1 is composed of two main cross beams 11 and two main longitudinal beams 12 to form a square frame structure, wherein the main cross beams 11 and the main longitudinal beams 12 are both steel rod components, which can be angle steel, channel steel, I-beam, etc. The main cross beams 11 and the main longitudinal beams 12 can be multiple rods arranged side by side. A plurality of displacement cross beams 2 are arranged on the main frame 1, and the main cross beams 11 are parallel to the displacement cross beams 2. In this embodiment, four displacement cross beams 2 are arranged near the main cross beams 11, and the four displacement cross beams 2 are adjacent to each other. The main crossbeams 11 are distributed in a concentrated manner, and each displacement crossbeam 2 is provided with a plurality of mounting positions 21 arranged at intervals along its own longitudinal direction. When in use, the main frame 1 is installed on the catwalk main cable to bear the displacement load of the catwalk main cable. The supporting pulley mechanism 3 is installed by selecting one of the mounting positions 21 on each displacement crossbeam 2, and the main cable wire rope 6 passes through each supporting pulley mechanism 3. The plurality of supporting pulley mechanisms 3 cooperate to adjust, displace and maintain the curvature radius of the main cable wire rope 6.

[0037] Preferably, the mounting position 21 in the present embodiment is a mounting hole, so that the mounting position 21 has a simple structure and is easy to set up. It can be understood that the mounting position 21 can also be equipped with a mounting groove to limit the position movement of the mounting structure and improve the installation stability of the structure. At the same time, the arrangement of the mounting holes on each displacement beam 2 can be adjusted according to actual conditions to expand the displacement shape of the main cable wire rope 6 after passing through the device, thereby increasing the adaptability and versatility of the device.

[0038] Specifically, Figure 6 As shown, the support pulley mechanism 3 includes a support seat 31 and a pulley 32, and the support seat 31 is provided with a connecting rod 33 adapted to the installation position 21. The connecting rod 33 is preferably a screw rod. When in use, the connecting rod 33 passes through the installation hole and is fixed to achieve the installation and fixation of the support pulley mechanism 3. The main cable wire rope 6 passes between the support seat 31 and the pulley 32 and fits on the pulley 32 to achieve the adjustment and maintenance of the curvature radius of the main cable wire rope 6.

[0039] Preferably, Figure 2 As shown, the number of main longitudinal beams 12 between the two main transverse beams 11 can be increased according to actual conditions to improve the structural strength of the main frame 1.

[0040] Preferably, a plurality of reinforcing beams 4 are arranged at intervals between the two main longitudinal beams 12. The reinforcing beams 4 improve the structural strength of the main frame 1, ensure the structural stability of the device during use, and stably bear the displacement load of the catwalk main cable through the main frame 1.

[0041] The present embodiment is a suspension bridge catwalk main cable displacement and maintaining device, by arranging multiple supporting pulley mechanisms 3 on the main frame 1, so that the main cable wire rope 6 can change and maintain the extension direction through the limiting effect of the supporting pulley mechanisms 3. The cooperation of multiple supporting pulley mechanisms 3 can reduce the bending degree of the main cable wire rope 6 at a single supporting pulley mechanism 3, so that the main cable wire rope 6 is not easily damaged due to bending, thereby extending the service life of the catwalk main cable and reducing the construction safety risk. At the same time, the main cable wire rope 6 is supported by the supporting pulley mechanism 3, and the position where the main cable wire rope 6 contacts the supporting pulley mechanism 3 is arc-shaped, which can avoid the main cable wire rope 6 from bending, and can further avoid the main cable wire rope 6 from being damaged by bending. In addition, the number and installation position of the supporting pulley mechanisms 3 can be adjusted according to actual conditions, and then the bending direction and bending degree of the main cable wire rope 6 can be adjusted, so that the displacement and maintaining device can be adapted to the use requirements of different environments and the versatility of the device can be improved.

[0042] Example 2

[0043] like Figure 1-Figure 2 As shown, a suspension bridge catwalk main cable displacement retaining device of this embodiment is further provided with a plurality of mounting positions 21 arranged on the main cross beam 11 on the basis of the first embodiment.

[0044] The present embodiment is a suspension bridge catwalk main cable displacement and maintaining device, wherein the mounting position 21 is a mounting hole. By arranging the mounting hole on the main crossbeam 11, the supporting pulley mechanism 3 can be fixed on the main crossbeam 11 according to actual conditions, so as to further increase the position on the device that can be used to change the extension direction of the main cable steel wire rope 6, realize the adjustment and maintenance of its curvature radius, and expand the adjustable range of the device.

[0045] Preferably, each main cross beam 11 includes two steel members arranged side by side, and the installation positions 21 are arranged on each steel member.

[0046] Example 3

[0047] like Figure 4-Figure 5 As shown, a main cable displacement and maintaining device for a suspension bridge catwalk of this embodiment is similar to the scheme of embodiment 1 or embodiment 2, with the difference that: a plurality of limiting mechanisms 5 are arranged on the main cross beam 11, and the limiting mechanism 5 includes a limiting seat 51 and a back pressure plate 52, and the back pressure plate 52 is detachably connected to the limiting seat 51, and the limiting seat 51 is provided with a limiting groove 53.

[0048] The present embodiment is a suspension bridge catwalk main cable displacement and holding device, by setting a limiting mechanism 5 on the main crossbeam 11. When in use, the main cable wire rope 6 is passed through the limiting groove 53, and the main cable wire rope 6 is limited to the limiting seat 51 by the back pressure plate 52, thereby realizing the limiting connection between the main frame 1 and the main cable wire rope 6. The connection between the main frame 1 and the main cable wire rope 6 is realized through the limiting mechanism 5 with the limiting groove 53, ensuring the installation stability of the device on the main cable wire rope 6 and avoiding position slippage.

[0049] Example 4

[0050] like Figure 3 As shown, a suspension bridge catwalk main cable displacement and maintaining device of this embodiment is similar to the scheme of embodiment 1 or embodiment 2 or embodiment 3, with the difference that: the displacement beam 2 is detachably connected to the main frame 1, and a plurality of connection positions 13 for connecting the displacement beam 2 are arranged on the main frame 1.

[0051] A suspension bridge catwalk main cable displacement and maintaining device of this embodiment provides a connection position 13 on the main frame 1 for connecting the displacement beam 2, so that the position and number of the displacement beam 2 relative to the main frame 1 can be adjusted according to actual conditions, thereby further expanding the scope of application of the device.

[0052] Preferably, the connection position 13 is a hole structure that penetrates the main frame 1 , and the connection position 13 is equipped with a conventional connector to connect and fix the displacement beam 2 .

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A main cable displacement retaining device for a suspension bridge catwalk, characterized in that: The invention comprises a main frame (1), wherein the main frame (1) is provided with at least two displacement beams (2), and a plurality of mounting positions (21) are arranged on the displacement beams (2), and any of the mounting positions (21) can be adapted to mount a supporting pulley mechanism (3).

2. A suspension bridge catwalk main cable displacement retaining device as claimed in claim 1, characterized in that: The main frame (1) comprises two main cross beams (11), wherein the main cross beams (11) are parallel to the displacement cross beams (2), at least two main longitudinal beams (12) are arranged between the two main cross beams (11), and the main longitudinal beams (12) are vertically connected to the main cross beams (11).

3. A suspension bridge catwalk main cable displacement retaining device as claimed in claim 2, characterized in that: A plurality of mounting positions (21) are arranged on the main cross beam (11).

4. A suspension bridge catwalk main cable displacement retaining device as claimed in claim 2, characterized in that: A plurality of limiting mechanisms (5) are arranged on the main cross beam (11), the limiting mechanism (5) comprising a limiting seat (51) and a back pressure plate (52), the back pressure plate (52) being detachably connected to the limiting seat (51), and a limiting groove (53) being provided on the limiting seat (51).

5. A suspension bridge catwalk main cable displacement retaining device as claimed in claim 2, characterized in that: A plurality of reinforcing beams (4) are arranged at intervals between the two main longitudinal beams (12).

6. A suspension bridge catwalk main cable displacement retaining device as claimed in claim 1, characterized in that: The supporting pulley mechanism (3) comprises a supporting seat (31) and a pulley (32); the supporting seat (31) is provided with a connecting rod (33) adapted to the mounting position (21).

7. A suspension bridge catwalk main cable displacement retaining device as claimed in claim 6, characterized in that: The mounting position (21) comprises a mounting hole.

8. A suspension bridge catwalk main cable displacement retaining device according to any one of claims 1 to 7, characterized in that: The displacement cross beam (2) is detachably connected to the main frame (1).

9. A suspension bridge catwalk main cable displacement retaining device as claimed in claim 8, characterized in that: A plurality of connection positions (13) for connecting the displacement cross beam (2) are arranged on the main frame (1).

10. A suspension bridge catwalk main cable displacement retaining device as claimed in claim 2, characterized in that: A plurality of displacement beams (2) are concentratedly distributed near the main beam (11).

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