A cable torsion detection device and its usage method

Abstract

A cable torsion detection device and its usage method. The cable torsion detection device includes a torsion detection tube arranged on the cable and a ball arranged inside the torsion detection tube. The torsion detection tube includes a spiral guiding tube, a fixing ring, and a transparent tube. The spiral guiding tube includes a spiral guiding tube body and a guiding groove. The usage method of the cable torsion detection device provides a cable to be erected, and the cable always remains in a horizontal state. The cable torsion detection device is fixedly sleeved on the cable, the ball in the cable torsion detection device is arranged in the guiding groove located on the symmetry axis of the central axis of the spiral guiding tube, and a mark is sprayed in the guiding groove. After the cable erection is completed, observe the position of the ball. The cable torsion detection device and its usage method have a simple structure, are convenient to operate, can conveniently detect the torsion of the cable, improve the cable installation efficiency, and have wide applicability.

Description

Technical Field

[0001] The present invention belongs to the technical field of cable detection devices, and in particular to a cable torsion detection device and a use method thereof. Background Art

[0002] A suspension bridge is a bridge that uses cables suspended from towers and anchored on both sides as the main load-bearing components of the superstructure. The geometric shape of the cables is determined by the balance of forces. Many hangers are hung from the cables to suspend the bridge deck. Stiffening beams are often set between the bridge deck and the hangers to form a combined system with the cables to reduce the deflection caused by the load.

[0003] During the installation of cables, the change of traction force during the traction process or the internal stress of a single steel wire during the cable manufacturing process may cause the cable to twist during the traction process, thereby affecting the quality of the cable. Generally, the cable twisting is corrected by rotation to ensure the normal use of the cable. However, when correcting the twisted cable, it is currently impossible to accurately determine the number of twists and the direction of the twisting of the cable, which makes the correction speed slow, affecting the efficiency of the cable during the installation process. Summary of the invention

[0004] In view of this, the present invention provides a cable torsion detection device and a use method thereof for facilitating detection of cable torsion to meet industrial needs.

[0005] A cable torsion detection device comprises a torsion detection tube arranged on a cable, and a round ball arranged in the torsion detection tube. The torsion detection tube comprises a spiral guide tube surrounding the cable, two fixing rings respectively fixedly connected to the two ends of the spiral guide tube, and a transparent tube sleeved on the fixing ring and the outer side of the spiral guide tube. The spiral guide tube comprises a spiral guide tube body, and a plurality of guide grooves arranged at intervals on the spiral guide tube body and connected to each other. The outer contour of the spiral guide tube body and the outer contour of the plurality of guide grooves connected together are both spiral-shaped. The gap between the inner diameter of the transparent tube and the cable is greater than the diameter of the round ball. The gap between the transparent tube and the spiral guide tube is smaller than the diameter of the round ball. The transparent tube, the spiral guide tube and the fixing ring are interference fit, and the fixing ring and the spiral guide tube are both made of rubber tubes. The width of each guide groove is greater than the diameter of the round ball, and the spiral guide tube and the cable are interference fit. When the torsion detection tube is installed on the cable, the ball is arranged in the guide groove where the axis of symmetry of the central axis of the spiral guide tube is located, so that the ball can move in the torsion detection tube.

[0006] Furthermore, the number of the guide grooves is an odd number.

[0007] Furthermore, the widths of any two adjacent guide grooves are equal.

[0008] Furthermore, in a cross section along the central axis of the torsion detection tube, the outer contour of the spiral guide tube body is circular, and the diameter of the ball is smaller than the diameter of the spiral guide tube.

[0009] Furthermore, the ends of the transparent tube are flush with the two fixing rings respectively.

[0010] A method for using a cable torsion detection device comprises the following steps:

[0011] S101: providing a cable to be erected, and the cable is always kept in a horizontal state;

[0012] S102: fixing the cable torsion detection device on the cable;

[0013] S103: placing the ball in the cable torsion detection device in a guide groove where the symmetry axis of the central axis of the spiral guide tube is located, and spraying a mark in the guide groove;

[0014] S104: After the cable is installed, observe the position of the ball. When the ball moves along the torsion detection tube in a clockwise direction, the cable twists in a clockwise direction. When the ball moves along the torsion detection tube in a counterclockwise direction, the cable twists in a counterclockwise direction. The number of guide grooves between the ball and the mark is the number of twisted turns of the cable.

[0015] Furthermore, there is an obvious color difference between the mark and the cable and the torsion detection tube.

[0016] Compared with the prior art, the cable torsion detection device and its usage method provided by the present invention detect by arranging the torsion detection tube and the round beads on the cable. The spiral guiding tube body of the torsion detection tube surrounds the outside of the cable. The spiral guiding tube includes a spiral guiding tube body, and a plurality of guiding grooves that are spaced apart on the spiral guiding tube body and communicate with each other. The round beads are accommodated in the guiding grooves. When the torsion detection tube is installed on the cable, the round beads are arranged in the guiding grooves where the symmetry axis of the central axis of the spiral guiding tube is located, so as to facilitate the detection of the torsion direction of the cable. When the round beads move along the torsion detection tube in the clockwise direction, the cable twists in the clockwise direction. When the round beads move along the torsion detection tube in the counterclockwise direction, the cable twists in the counterclockwise direction. The cable torsion detection device and its usage method have a simple structure, convenient operation, can conveniently detect the torsion of the cable, ensure the installation quality of the cable, improve the cable installation efficiency, and have wide applicability. Description of the Drawings

[0017] Figure 1 It is a schematic cross-sectional structure diagram of the cable torsion detection device provided by the present invention.

[0018] Figure 2 It is a flowchart of the usage method of the cable torsion detection device provided by the present invention. Detailed Description of the Embodiments

[0019] The following further details the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention here does not limit the protection scope of the present invention.

[0020] As Figure 1 shown, it is a schematic cross-sectional structure diagram of the cable torsion detection device provided by the present invention. The cable torsion detection device includes a torsion detection tube 10 arranged on a cable 1, and a round bead 20 arranged in the torsion detection tube 10. The cable torsion detection device includes some other functional modules, such as assembly components, etc., which should be well-known technologies to those skilled in the art and will not be described in detail one by one here.

[0021] The torsion detection tube 10 includes a spiral guiding tube 11 surrounding the cable 1, two fixing rings 12 respectively fixedly connected to both ends of the spiral guiding tube 11, and a transparent tube 13 sleeved outside the fixing rings 12 and the spiral guiding tube 11.

[0022] The spiral guiding tube 11 includes a spiral guiding tube body 111 and a plurality of guiding grooves 112 that are spaced apart and communicate with each other on the spiral guiding tube body 111. The outer contour of the spiral guiding tube body 111 and the outer contour formed by connecting the plurality of guiding grooves 112 are both spiral. The spherical beads 20 are accommodated in the guiding grooves 112, and the width of each guiding groove 112 is greater than the diameter of the spherical bead 20, and the widths of any two adjacent guiding grooves 112 are equal, so as to facilitate the rolling of the spherical bead 20 in the guiding groove 112. In a cross-section along the central axis of the torsion detection tube, the outer contour of the spiral guiding tube body 111 is circular, and the diameter of the spherical bead 20 is smaller than the diameter of the spiral guiding tube 11, so that the spherical bead 20 can move in the guiding groove 112. In addition, an interference fit is provided between the spiral guiding tube 11 and the cable 1, so as to ensure that the spiral guiding tube 11 can rotate synchronously with the cable 1, so as to facilitate the spiral guiding tube 11 to guide the movement of the spherical bead 20, which will be described in detail in combination with the spherical bead 20.

[0023] The fixing ring 12 is used to fix both ends of the spiral guiding tube 11, so that the position of the spiral guiding tube 11 on the cable 1 is stable. The fixing ring 12 and the spiral guiding tube 11 are both made of rubber tubes. When installing the fixing ring 12 and the spiral guiding tube 11, the spiral guiding tube 11 is wound around the cable 1 to form a spiral shape, and both ends of the spiral guiding tube 11 are fixed by the fixing ring 12. The fixing ring 12 not only fixes the position of the spiral guiding tube 11, but also prevents the spherical bead 20 from rolling out from both ends of the spiral guiding tube 11.

[0024] The gap between the inner diameter of the transparent tube 13 and the cable 1 is greater than the diameter of the spherical bead 20, so as to facilitate the spherical bead 20 to slide along the spiral guiding tube 11, and the gap between the transparent tube 13 and the spiral guiding tube 11 is smaller than the diameter of the spherical bead 20, so as to ensure that the spherical bead 20 rolls along the spiral guiding tube 11. In this embodiment, an interference fit is provided between the transparent tube 13, the spiral guiding tube 11 and the fixing ring 12. The transparent tube 13 connects the spiral guiding tube 11, the fixing ring 12 and the spherical bead 20 into an integral body, that is, the torsion detection tube 10 and the spherical bead 20 form a whole, preventing the spherical bead 20 from falling off the spiral guiding tube 11, and the transparent tube 13 protects the spiral guiding tube 11 and the fixing ring 12. In addition, the two ends of the transparent tube 13 are flush with the two fixing rings 12 respectively. The transparent tube 13 is made of a transparent material, so as to facilitate observing the position of the spherical bead 20, thereby judging the number of turns of torsion of the cable 1 and the direction of torsion of the cable 1, and further facilitating the correction of the cable 1.

[0025] When the torsion detection tube 10 is installed on the cable 1, the ball 20 is arranged in the guiding groove 112 where the symmetry axis of the central axis of the spiral guiding tube 11 is located, so as to facilitate the movement of the ball 20 within the torsion detection tube 10, thereby distinguishing the torsion direction and the number of torsion turns of the cable 1. That is, the ball 20 is arranged in the guiding groove 112 near the center of the spiral guiding tube 11, so that the guiding grooves 112 on both sides of the ball 20 are evenly distributed, and the number of the guiding grooves 112 is odd, so that the number of the guiding grooves 112 on both sides of the ball 20 is equal. Due to the different torsion directions of the cable 1, the moving directions of the ball 20 are different, and thus the torsion direction of the cable 1 can be distinguished. When the ball 20 moves along the torsion detection tube 10 in the clockwise direction, the cable 1 twists in the clockwise direction. When the ball 20 moves along the torsion detection tube 10 in the counterclockwise direction, the cable 1 twists in the counterclockwise direction.

[0026] As Figure 2 shown, it is a flowchart of the usage method of the cable torsion detection device provided by the present invention. The specific steps are as follows:

[0027] S101: Provide the cable 1 to be erected, and keep the cable 1 in a horizontal state all the time;

[0028] S102: Fix the cable torsion detection device on the cable 1 in a sleeved manner;

[0029] S103: Arrange the ball 20 in the cable torsion detection device in the guiding groove 112 where the symmetry axis of the central axis of the spiral guiding tube 11 is located, and spray marks in the guiding groove 112;

[0030] S104: After the cable 1 is erected, observe the position of the ball 20. When the ball 20 also moves along the torsion detection tube 10 in the clockwise direction, the cable 1 twists in the clockwise direction. When the ball 20 moves along the torsion detection tube 10 in the counterclockwise direction, the cable 1 twists in the counterclockwise direction, and the number of the guiding grooves 112 between the ball 20 and the mark is the number of torsion turns of the cable 1.

[0031] The cable 1 is kept in a horizontal state all the time to prevent the ball 20 from rolling along the spiral guiding tube 11 by its own gravity, thus resulting in inaccurate detection results. When the cable 1 twists, it can be imagined that the cable 1 drives the spiral guiding tube 11 to rotate together, and the spiral guiding tube 11 moves relative to the ball 20, so as to realize the movement of the ball 20 in the guiding groove 112.

[0032] The mark (not shown) has obvious color difference with the cable 1 and the torsion detection tube 10 to facilitate observation by the user.

[0033] Compared with the prior art, the cable torsion detection device and the method of using the same provided by the present invention are used to detect the torsion detection tube 10 and the ball 20 provided on the cable 1. The spiral guide tube body 111 of the torsion detection tube 10 surrounds the outside of the cable 1. The spiral guide tube 11 includes a spiral guide tube body 111 and a plurality of guide grooves 112 arranged at intervals on the spiral guide tube body 111 and connected to each other. The ball 20 is accommodated in the guide groove 112. When the torsion detection tube 10 is installed on the cable 1, the ball 20 is arranged in the guide groove 112 where the symmetry axis of the central axis of the spiral guide tube 11 is located, so as to detect the torsion direction of the cable 1. When the ball 20 moves along the torsion detection tube 10 in a clockwise direction, the cable 1 is torsioned in a clockwise direction. When the ball 20 moves along the torsion detection tube 10 in a counterclockwise direction, the cable 1 is torsioned in a counterclockwise direction. The cable torsion detection device and the use method thereof have a simple structure, are easy to operate, can conveniently detect the torsion of the cable, ensure the installation quality of the cable, improve the cable installation efficiency, and have wide applicability.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. A cable torsion detection device, Features: The cable torsion detection device includes a torsion detection tube arranged on the cable, and a round ball arranged in the torsion detection tube. The torsion detection tube includes a spiral guide tube wrapped around the cable, two fixing rings respectively fixedly connected to the two ends of the spiral guide tube, and a transparent tube sleeved on the fixing ring and the outer side of the spiral guide tube. The spiral guide tube includes a spiral guide tube body, and a plurality of guide grooves arranged at intervals on the spiral guide tube body and connected to each other. The outer contour of the spiral guide tube body and the outer contour of the plurality of guide grooves connected together are both spiral. The gap between the inner diameter of the transparent tube and the cable is larger than the diameter of the ball, the gap between the transparent tube and the spiral guide tube is smaller than the diameter of the ball, the transparent tube, the spiral guide tube and the fixing ring are interference fit, the fixing ring and the spiral guide tube are both made of rubber tubes, the width of each guide groove is larger than the diameter of the ball, and the spiral guide tube and the cable are interference fit, when the torsion detection tube is installed on the cable, the ball is arranged in the guide groove where the axis of symmetry of the central axis of the spiral guide tube is located, so as to facilitate the movement of the ball in the torsion detection tube.

2. The cable torsion detection device according to claim 1, Features: The number of the guide grooves is odd.

3. The cable torsion detection device according to claim 1, Features: The widths of any two adjacent guide grooves are equal.

4. The cable torsion detection device according to claim 1, Features: In a cross section along the central axis of the torsion detection tube, the outer contour of the spiral guide tube body is circular, and the diameter of the ball is smaller than the diameter of the spiral guide tube.

5. The cable torsion detection device according to claim 1, Features: The ends of the transparent tube are flush with the two fixing rings respectively.

6. A method for using a cable torsion detection device, Features: A method for using a cable torsion detection device comprises the following steps: S101: providing a cable to be erected, and the cable is always kept in a horizontal state; S102: fixing the cable torsion detection device as described in any one of claims 1 to 5 on the cable; S103: placing the ball in the cable torsion detection device in a guide groove where the symmetry axis of the central axis of the spiral guide tube is located, and spraying a mark in the guide groove; S104: After the cable is installed, observe the position of the ball. When the ball moves along the torsion detection tube in a clockwise direction, the cable twists in a clockwise direction. When the ball moves along the torsion detection tube in a counterclockwise direction, the cable twists in a counterclockwise direction. The number of guide grooves between the ball and the mark is the number of twisting turns of the cable.

7. A method for using the cable torsion detection device according to claim 6, Features: The color of the said mark is significantly different from that of the said cable and the said torsion detection tube.

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