Inhaul cable tensioning device

Abstract

The invention belongs to the technical field of building construction, and discloses an inhaul cable tensioning device which comprises a supporting assembly, a driving assembly and a bearing assembly. The inhaul cable is movably connected to the supporting assembly, the driving assembly comprises a movable part and a fixed part, the fixed part is arranged on the supporting assembly, the movable part can be arranged on the fixed part in a sliding mode in the tensioning direction, the bearing assembly comprises a bearing part, the bearing part is rotatably connected to the movable part and is configured to be connected to the inhaul cable, and when the movable part slides in the tensioning direction, the movable part can slide in the tensioning direction. The bearing part can rotate relative to the movable part to drive the inhaul cable to rotate around the axis of the inhaul cable. By means of the arrangement, the inhaul cable tensioning device can improve the safety of inhaul cable construction, and the construction requirement is met.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to a cable tensioning device. Background Art

[0002] Cable-stayed bridges typically utilize pre-assembled cables as stays. As the tensile strength of steel wires continues to increase, the main span, cable force, length, specifications, and individual cable weight of cable-stayed bridges continue to increase, leading to increasing safety requirements for cables. According to the cable production process, finished parallel-wire cables are constructed by laying parallel strands of steel wires together according to standard specifications. After the strands are initially formed, they are twisted concentrically in a left-hand direction by 2° to 4° using a twisting machine. This unique spatial helical characteristic imparts a tensile and untwisting behavior to the strands, meaning that the cables will twist during the traction and tensioning process.

[0003] During the traction and tensioning process of the inclined cable, when the cable force reaches a certain value, the torsion of the cable will drive the jack cylinder or the through-hole sleeve to rotate, causing the jack and the support leg to be torsionally damaged. This brings many safety hazards to the installation and construction of the inclined cable, and may even affect the construction period, increase construction costs, and fail to meet construction requirements.

[0004] Therefore, a cable tensioning device is urgently needed to solve the above technical problems. Summary of the Invention

[0005] The object of the present invention is to provide a cable tensioning device which can improve the safety of cable construction and meet construction requirements.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A cable tensioning device, comprising:

[0008] a support assembly, the cable being movably connected to the support assembly;

[0009] A driving assembly, comprising a movable member and a fixed member, wherein the fixed member is disposed on the supporting assembly, and the movable member is slidably disposed on the fixed member along a tensioning direction;

[0010] The bearing assembly includes a bearing member, which is rotatably connected to the movable member and is configured to be connected to the cable. When the movable member slides along the tensioning direction, the bearing member can rotate relative to the movable member, driving the cable to rotate around its own axis.

[0011] Optionally, the support assembly includes a limiting member, the limiting member is provided with a first limiting hole, and the pull cable is passed through the first limiting hole.

[0012] Optionally, the support assembly further includes a support member disposed on the limiting member, the limiting member and the support member are arranged to form a mounting groove, and one end of the cable is placed in the mounting groove.

[0013] Optionally, the support assembly further includes a first locking member disposed on the cable, wherein the first locking member abuts against an inner wall of the mounting groove.

[0014] Optionally, a second limiting hole is provided on the support member, and one end of the bearing member passes through the second limiting hole and is connected to the cable.

[0015] Optionally, the fixed member is provided with a piston cavity, and the movable member slides in the piston cavity with damping.

[0016] Optionally, the cable tensioning device further comprises a rotating assembly, the bearing member is rotatably connected to the movable member via the rotating assembly, and the rotating assembly is configured to generate a damping feeling between the bearing member and the movable member.

[0017] Optionally, the rotating assembly includes a rolling member, a retaining frame and two rotating members, and there are multiple rolling members. The multiple rolling members are arranged at intervals along the circumference of the retaining frame and are rotatably connected to the retaining frame. The retaining frame is arranged between the two rotating members, and the two rotating members are respectively connected to the supporting member and the movable member, and rest against the rolling member.

[0018] Optionally, the bearing assembly further includes a second locking member, which is arranged between the bearing member and the movable member.

[0019] Optionally, an anti-slip portion is provided on the bearing member, and the second locking member abuts against the anti-slip portion.

[0020] Beneficial effects of the present invention:

[0021] The present invention provides a cable tensioning device comprising a support assembly, a drive assembly, and a bearing assembly. The cable is movably connected to the support assembly, ensuring the safety of the cable during construction and preventing interference with the cable by the support assembly. The drive assembly comprises a movable member and a fixed member, the fixed member being disposed on the support assembly to provide stable support for the movable member and ensure effective cable tensioning. The movable member is slidably disposed on the fixed member in the tensioning direction. The bearing assembly comprises a bearing member rotatably connected to the movable member. When the movable member slides in the tensioning direction, the bearing member, connected to the cable, drives the cable to achieve stable tensioning via the bearing member. Simultaneously, the bearing member is rotatable relative to the movable member, driving the cable to rotate about its own axis. This arrangement allows the cable to rotate moderately about its own axis during construction, releasing torsional forces generated by the twist angle and preventing torsional forces from being transmitted to the drive assembly and causing damage. This improves the service life and construction safety of the cable tensioning device. Through the above-described arrangement, the cable tensioning device of the present application can improve the safety of cable construction and meet construction requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of a cable tensioning device provided by an embodiment of the present invention;

[0023] Figure 2 Schematic diagram of a rotating assembly provided in an embodiment of the present invention.

[0024] In the picture:

[0025] 100. Cable; 1. Support assembly; 11. Limiting member; 111. First limiting hole; 12. Supporting member; 121. Second limiting hole; 13. Mounting slot; 14. First locking member; 2. Driving assembly; 21. Movable member; 22. Fixed member; 3. Bearing assembly; 31. Bearing member; 32. Second locking member; 4. Rotating assembly; 41. Rotating member. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0027] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, terms such as "upper," "lower," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0030] like Figure 1 and Figure 2 As shown, this embodiment provides a cable tensioning device, which includes a support assembly 1, a drive assembly 2, and a bearing assembly 3. The cable 100 is movably connected to the support assembly 1. The drive assembly 2 includes a movable member 21 and a fixed member 22. The fixed member 22 is provided on the support assembly 1. The movable member 21 can be slidably provided on the fixed member 22 in the tensioning direction. The bearing assembly 3 includes a bearing member 31. The bearing member 31 is rotatably connected to the movable member 21 and is configured to be connected to the cable 100. When the movable member 21 slides in the tensioning direction, the bearing member 31 can rotate relative to the movable member 21, driving the cable 100 to rotate around its own axis.

[0031] In this embodiment, the cable 100 is movably connected to the support assembly 1, ensuring the safety of the cable 100 during construction and preventing interference from the support assembly 1. The drive assembly 2 includes a movable member 21 and a fixed member 22. The fixed member 22 is mounted on the support assembly 1 to provide stable support for the movable member 21 and ensure the tensioning effect of the cable 100. The movable member 21 is slidably mounted on the fixed member 22 in the tensioning direction. The bearing assembly 3 includes a bearing member 31, which is rotatably connected to the movable member 21. When the movable member 21 slides in the tensioning direction, it is connected to the cable 100 through the bearing member 31, driving the cable 100 to achieve stable tension. Simultaneously, the bearing member 31 can rotate relative to the movable member 21, driving the cable 100 to rotate about its own axis. This arrangement allows the cable 100 to rotate appropriately about its own axis during construction, releasing the torsional force generated by the twist angle and preventing the torsional force from being transmitted to the drive assembly 2 and causing damage, thereby improving the service life of the cable tensioning device and improving construction safety. Through the above arrangement, the cable tensioning device of this embodiment can improve the safety of cable 100 construction and meet the construction requirements.

[0032] It should be noted that the tensioning direction of this embodiment is the tensioning direction of the cable 100, which is generally parallel to the extension direction of the cable 100. The specific direction can be determined according to the construction operation of the cable, and no further explanation is given here.

[0033] The specific structure of the cable tensioning device is described below:

[0034] Specifically, if Figure 1 and Figure 2 As shown, the support assembly 1 includes a limit member 11, which has a first limit hole 111. The cable 100 is passed through the first limit hole 111, which can effectively limit the position of the cable 100 and prevent the cable 100 from shifting or shaking during the construction process, thereby improving the stability and safety of the installation of the cable 100.

[0035] Specifically, the support assembly 1 also includes a support member 12 arranged on the limit member 11. The limit member 11 and the support member 12 are arranged to form an installation groove 13. One end of the cable 100 is placed in the installation groove 13. By setting the installation groove 13, not only can one end of the cable 100 be protected, but also the installation and disassembly of the cable 100 is facilitated, thereby improving construction efficiency.

[0036] More specifically, in this embodiment, the stopper 11 is a steel plate, and the support member 12 is a support leg. The support leg is mounted on the steel plate to ensure the overall rigidity of the support assembly 1, thereby providing reverse support for the normal operation of the drive assembly 2. In other embodiments, the stopper 11 is a steel pipe, and the support member 12 is a steel block. The steel pipe is mounted on the steel block and is used to pass the cable 100 through to ensure sufficient reverse support force during the tensioning process of the cable 100. The specific structure of these components is not limited here, as long as they can achieve the above-mentioned functions.

[0037] Specifically, the support assembly 1 further includes a first locking member 14 disposed on the cable 100. The first locking member 14 abuts against the inner wall of the mounting groove 13. The first locking member 14 securely locks the cable 100 in the mounting groove 13, preventing the cable 100 from loosening or falling off during installation, thereby improving the reliability and safety of the cable 100 installation. The first locking member 14 can be a nut or a buckle, and the specific structure of the first locking member 14 is not particularly limited herein, as long as it can achieve the aforementioned functions.

[0038] Specifically, a second limiting hole 121 is provided on the support member 12. One end of the carrier 31 passes through the second limiting hole 121 and is connected to the cable 100. This limits the perforation position of the carrier 31, ensuring the correct connection between the carrier 31 and the cable 100, helping to maintain the tensioning direction and strength of the cable 100 and improve construction accuracy. The carrier 31 can be a tensioning rod or a tensioning plate. The specific structure of the carrier 31 is not limited here, as long as it facilitates the connection and tensioning of the cable 100.

[0039] Specifically, the fixed part 22 is provided with a piston cavity, and the movable part 21 slides in the piston cavity with damping, so that the operator can effectively control the movement speed and strength of the movable part 21, thereby achieving a smooth tensioning process, which helps to reduce the impact and vibration of the cable 100 during the tensioning process and improve construction quality and safety.

[0040] More specifically, in this embodiment, the fixed member 22 is a hydraulic cylinder, the movable member 21 is a piston, and the piston chamber is configured to accommodate hydraulic oil. The flow of hydraulic oil drives the piston to achieve damped sliding relative to the hydraulic cylinder, thereby achieving stable tensioning of the cable 100. During the construction process, the cable 100 can moderately rotate around its own axis to release torsional force, thereby avoiding damage such as oil leakage caused by piston rotation. It should be noted that the specific working principle of the drive assembly 2 can be referenced to the working principle of the hydraulic cylinder and will not be repeated here. In other embodiments, the drive assembly 2 can adopt a pneumatic cylinder or an electric cylinder. The specific structure of the drive assembly 2 is not further limited here, as long as it can achieve the above-mentioned functions.

[0041] Specifically, the cable tensioning device also includes a rotating component 4, and the supporting member 31 is rotatably connected to the movable member 21 through the rotating component 4. The rotating component 4 is configured to generate a damping feeling between the supporting member 31 and the movable member 21, so that the supporting member 31 can rotate smoothly relative to the movable member 21. At the same time, by setting the rotating component 4 to generate a damping feeling, it helps to control the speed and force of the rotation of the supporting member 31, so that the cable 100 can rotate moderately around its own axis during the construction process, release the torsional force, and prevent damage to the cable tensioning device.

[0042] Specifically, in this embodiment, the rotating assembly 4 includes a rolling element, a retaining frame, and two rotating elements 41. There are multiple rolling elements, which are spaced apart along the circumference of the retaining frame and are rotatably connected to the retaining frame. The retaining frame is disposed between the two rotating elements 41. The two rotating elements 41 are respectively connected to the bearing member 31 and the movable member 21 and abut against the rolling elements. When the rotating element 41 is subjected to axial force during the tensioning process of the cable 100, the rotating element 41 rotates about its own axis relative to the retaining frame under the action of the torsional force of the cable 100, thereby making the rotation between the bearing member 31 and the movable member 21 smoother and more flexible. The provision of the rolling elements reduces friction and wear between the rotating element 41 and the retaining frame, ensures the stability and reliability of the rotating element 41 during rotation, and extends the service life of the rotating assembly 4.

[0043] More specifically, in this embodiment, the rolling elements are tapered rollers, and the two rotating elements 41 are respectively a shaft ring and a seat ring. The tapered rollers are rotatably mounted on a retaining frame to form a rolling assembly. The rolling assembly is disposed between the shaft ring and the seat ring, thereby enabling relative rotation between the bearing member 31 and the movable member 21. It should be noted that the specific operating principle of the rotating assembly 4 can be referenced to the operating principle of a thrust bearing and will not be further described here. In other embodiments, the rolling elements are steel balls, and the two rotating elements 41 are respectively a shaft ring and a seat ring. As long as the aforementioned functions can be achieved, the specific structures of these components are not further limited.

[0044] Specifically, the carrier assembly 3 also includes a second locking member 32, which is disposed between the carrier 31 and the movable member 21. It will be appreciated that in this embodiment, the second locking member 32 is locked to the carrier 31 and rotatably connected to the movable member 21 via the rotating assembly 4. This ensures that the rotating assembly 4 is constantly subjected to axial force under the locking action of the second locking member 32, ensuring normal operation. The second locking member 32 can be a nut or a buckle, and the specific structure of the second locking member 32 is not specifically defined herein, as long as it can achieve the aforementioned functions.

[0045] Specifically, an anti-slip portion is provided on the carrier 31 , and the second locking member 32 abuts against the anti-slip portion, thereby increasing the friction between the carrier 31 and the second locking member 32 and preventing the second locking member 32 from sliding on the carrier 31 .

[0046] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Cable tensioning device, characterized in that: include: A support assembly (1), a cable (100) movably connected to the support assembly (1); A driving assembly (2) comprising a movable member (21) and a fixed member (22), wherein the fixed member (22) is arranged on the supporting assembly (1), and the movable member (21) is slidably arranged on the fixed member (22) along a tensioning direction; The bearing assembly (3) includes a bearing member (31), wherein the bearing member (31) is rotatably connected to the movable member (21) and is configured to be connected to the cable (100). When the movable member (21) slides along the tensioning direction, the bearing member (31) can rotate relative to the movable member (21), thereby driving the cable (100) to rotate around its own axis.

2. The cable tensioning device according to claim 1, characterized in that: The support assembly (1) comprises a limiting member (11), the limiting member (11) is provided with a first limiting hole (111), and the pull rope (100) is passed through the first limiting hole (111).

3. The cable tensioning device according to claim 2, characterized in that: The support assembly (1) further comprises a support member (12) arranged on the limiting member (11), the limiting member (11) and the support member (12) are arranged to form a mounting groove (13), and one end of the cable (100) is placed in the mounting groove (13).

4. The cable tensioning device according to claim 3, characterized in that: The support assembly (1) further comprises a first locking member (14) provided on the cable (100), wherein the first locking member (14) abuts against an inner wall of the mounting groove (13).

5. The cable tensioning device according to claim 3, characterized in that: A second limiting hole (121) is provided on the support member (12), and one end of the bearing member (31) passes through the second limiting hole (121) and is connected to the cable (100).

6. The cable tensioning device according to claim 1, characterized in that: The fixed part (22) is provided with a piston cavity, and the movable part (21) slides in the piston cavity with damping.

7. The cable tensioning device according to claim 1, characterized in that: The cable tensioning device further comprises a rotating assembly (4), the bearing member (31) is rotatably connected to the movable member (21) via the rotating assembly (4), and the rotating assembly (4) is configured to generate a damping feeling between the bearing member (31) and the movable member (21).

8. The cable tensioning device according to claim 7, characterized in that: The rotating assembly (4) includes a rolling member, a retaining frame, and two rotating members (41). The rolling members are provided in plurality. The plurality of rolling members are arranged at intervals along the circumference of the retaining frame and are rotatably connected to the retaining frame. The retaining frame is arranged between the two rotating members (41). The two rotating members (41) are respectively connected to the bearing member (31) and the movable member (21), and abut against the rolling members.

9. The cable tensioning device according to any one of claims 1 to 8, characterized in that: The bearing assembly (3) further comprises a second locking member (32), and the second locking member (32) is arranged between the bearing member (31) and the movable member (21).

10. The cable tensioning device according to claim 9, characterized in that: An anti-slip portion is provided on the bearing member (31), and the second locking member (32) abuts against the anti-slip portion.

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