Method for creating reel of rotating cable

Abstract

To provide a method for creating a reel of a rotating cale which can realize the simultaneous traction of both head and tail ends of a cable strand of a cable, and has high reel creation efficiency as well.SOLUTION: A method for creating a reel of a rotating cable comprises: a step S1 in which one cable is wound onto a first cable reel by adopting a common winding system in which a head of a cable strand of a cable is on the inside and a tail thereof is on the outside; a step S2 in which a second cable reel is left at the middle point of the cable strand of the cable upon winding the same at the middle point of the cable strand of the cable; a step S3 in which the cable is rotated at the middle point of the cable strand to form a bent end; a step S4 in which the bent end is temporarily fixed to the second cable reel; and a step S5 in which the first cable reel is released and the second cable reel is retracted until the cable is completely folded in half and is wound onto the second cable reel.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] This application relates to the field of suspension bridge technology, and more particularly to a method for making a reel for a slewing cable. [Background technology]

[0002] A swing cable suspension bridge is a type of main cable with a single main cable on both sides, which starts from an anchor on one bank, bypasses the anchor on the other bank, and then returns and is anchored to the anchor on the starting bank. When the span is the same, the length of the swing cable is about twice that of a single cable in a conventional double cable (as shown in Figure 1). The cable strands of the main cable pass continuously through the swing anchors, and a swing cable saddle system is used to realize the swing anchoring of the cable strands, replacing the traditional cut-and-disperse anchoring at the anchors of the cable strands of the main cable, making full use of the constant load self-balancing characteristics of the main cable, and optimizing the anchoring structure and anchor structure. However, the cable strands of a swing cable suspension bridge are now one instead of the conventional upstream and downstream, and the cable strands are long and need to be turned, making it very difficult to erect.

[0003] Therefore, there is a need to provide an improved technical solution to address the shortcomings of the prior art. Summary of the Invention [Problem to be solved by the invention]

[0004] It is an object of the present invention to provide a method for making a reel of a swivel cable that overcomes or alleviates the problems present in the prior art. [Means for solving the problem]

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] Step S1 of winding a length of cable onto a first cable reel using a normal winding method in which the head of the cable strand of the cable is on the inside and the tail is on the outside; Step S2 of leaving the second cable reel at the midpoint of the cable strand of the cable when winding the cable around the midpoint of the cable strand of the cable; Step S3 of turning the cable at the midpoint of the cable strand to form a bent end; A step S4 of temporarily fixing the bent end to a second cable reel; and step S5 of releasing the first cable reel and retracting the second cable reel (recovering the cable) until the cable is completely folded in half and wound around the second cable reel, Specifically, step S3 is to release the first cable reel and pull the midpoint of the cable strand of the cable so that the midpoint exceeds a certain distance relative to the second cable reel, and then rotate the cable at the midpoint of the cable strand to form a bent end, which is a cable strand loop; Specifically, step S4 is to temporarily fix the cable strand ring to a second cable reel; The second cable reel is a revolving cable reel including a first reel rack, a second reel rack, and a spin base, the first reel rack being provided on the spin base and rolling with the rotation of the spin base; an axial direction of the first reel rack is parallel to a rolling axis direction of the spin base; the second reel rack is used to temporarily fix the cable strand ring after the cable is folded in half; the first reel rack is used to wind up a cable strand of the cable after it has been folded in half; The second reel rack is provided with a fall-off prevention structure, and the spin base is provided with a temporary fixing structure. How to make a reel for a swivel cable. Beneficial effects

[0007] 1. A technical solution is provided that creatively pulls both the head and tail ends of the same cable strand from one end of a suspension bridge simultaneously. The release efficiency of this solution is much higher than that of traditional technical means. It also avoids the problem that the cable cannot complete the difficult steering operation without a swivel cable saddle as in traditional technical means, greatly reducing the difficulty of construction and providing excellent operational convenience.

[0008] 2. To provide a method for making a reel by folding a cable in two and winding it, which realizes pulling both the head and tail ends of the cable strand of the cable simultaneously, saves operating space in the cable winding method, and has high reel making efficiency.

[0009] 3. To provide a cable reel structure, which can avoid damage to the folded cable strand of the cable and ensure the stability of the shape of the bent end of the cable strand of the cable, and can realize efficient folding and winding of the cable strand of the cable, and can further realize the operation of winding the cable around the cable reel by using a folding and winding method, and simultaneously pulling and releasing both ends of the cable strand of the same cable. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic diagram of a conventional dual cable installation shown in the background art of this application. [Diagram 2] This is a schematic diagram of an installation in which both head and tail ends of a cable strand of the same cable are pulled simultaneously. [Diagram 3] FIG. 1 is a schematic diagram of a conventional cable winding. [Figure 4] 1 is a flowchart for making a cable reel. [Diagram 5] FIG. 13 is a plan view of the second cable reel after the cable has been folded in half and wound. [Figure 6] FIG. 13 is a front view of the second cable reel after the cable has been folded in half and wound. [Figure 7]FIG. 2 is a schematic diagram of a temporary fixing structure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The method for erecting a reel cable, the method for producing a reel, and the cable reel of the present invention will be described in further detail below in combination with Figs. 1 to 7.

[0012] Step S2: pulling and releasing both ends of the same cable 5 from one end of the suspension bridge to the other end; The method for erecting a swivel cable includes a step S3 of performing an anchor fixing method for the cable 5 after releasing the cable.

[0013] In a specific embodiment of the present application, the suspension bridge is specifically a single-tower swivel cable anchor suspension bridge erected across a river. In order to reduce the excavation of earthwork and reduce damage to the environment, the bridge tower is installed on the south bank, and only the swivel anchor structure 9 is installed on the north bank, and the swivel anchor structure 9 is specifically a covered gravity anchor. The head and tail ends of the same cable 5 are simultaneously pulled and released from the north bank to the south bank of the suspension bridge, and as shown in FIG. 2, a number of guide frames are also provided to ensure that the head and tail ends of the cable 5 are released in parallel and optimize the force-bearing direction of the cable 5, and the head and tail ends of the cable 5 are adjusted to a parallel positional relationship by passing through a number of guide frames in sequence. After being released, the center of the cable 5 is anchored to the swivel anchor structure 9. The swivel anchor structure 9 is provided with a swivel cable saddle to balance the force-bearing situation of the center of the cable 5.

[0014] In the conventional turning installation of a swivel cable, it was necessary to pass one end of the cable 5 continuously through the swivel anchor location before achieving the turning operation. However, the length of the cable 5 of the swivel cable is longer than that of the conventional cable 5, which makes the turning operation process correspondingly more difficult and takes a long time to turn and install. By adopting a method of simultaneously pulling and releasing both the head and tail ends of the same cable 5, the releasing time can be significantly shortened and the releasing efficiency can be improved, while avoiding the need to continuously pass one end of the cable 5 through the swivel anchor structure 9 to complete the turning operation, thereby reducing the difficulty of construction.

[0015] The method includes step S1 of winding the cable 5 around a cable reel by folding the cable in half.

[0016] In a specific embodiment of the present application, the cable reel is arranged along the axial direction of the suspension bridge, and is specifically located in the swivel anchor structure 9. The swivel anchor structure 9 is provided with an anchor fixing groove, and after the cable 5 is released, it is anchored in the anchor fixing groove to stably maintain the rotating state. The anchor fixing groove is specifically an approximately semicircular groove with a certain radius, which includes two straight segments and one curved segment, the extension direction of the two straight segments coincides with the release direction of the cable 5, and the lateral distance between the two straight segments is the same as the lateral distance when both ends of the cable 5 are released in parallel. The multiple guide frames are specifically arranged along the circumferential direction of the anchor fixing groove.

[0017] In the conventional winding method as shown in FIG. 3 (where the head of the cable strand is on the inside and the tail of the cable strand is on the outside), it is not possible to simultaneously pull both the head and tail ends of the cable strand of the cable 5 in the same direction. The present application creatively adopts a two-fold winding method to wind the cable 5 onto a cable reel and simultaneously release both the head and tail ends of the cable strand of the cable 5, while making it easy to store, transport, and release the cable 5, and saving the operating space required when releasing the cable 5.

[0018] Step S1: winding one cable 5 onto a first cable reel 1 using a normal winding method in which the head of the cable strand of the cable 5 is on the inside and the tail is on the outside; a step S2 of leaving the second cable reel 2 at the midpoint of the cable strand of the cable 5 when winding the cable 5 around the midpoint of the cable strand; Step S3 of turning the cable 5 at the midpoint of the cable strand to form a bent end 13; A step S4 of temporarily fixing the bent end 13 to the second cable reel 2; a step S5 in which the first cable reel 1 is released and the second cable reel 2 is retracted until the cable 5 is completely folded in half and wound around the second cable reel 2; A method for making a reel of a swivel cable 5, including:

[0019] In a specific embodiment of the present application, the method of making a reel for winding folded in half is as follows: first, wind the cable 5 on the first cable reel 1 by a normal winding method, stop winding when the cable 5 is at the midpoint, leave the second cable reel 2 at the midpoint of the cable 5, keep a certain distance between the first cable reel 1 and the second cable reel 2, bend the cable 5 at the midpoint to form a bent end 13, temporarily fix the bent end 13 to the second cable reel 2, roll the first cable reel 1 to release the cable 5 until the cable 5 is completely folded in half and wound on the second cable reel 2, and roll the second cable reel in the opposite direction to retract the cable 5. At this time, the bent end 13 of the cable 5 is on the inside, and both the head and tail ends of the cable 5 are on the outside.

[0020] By combining the first cable reel 1 and the second cable reel 2, the cable is folded in two and wound up, and the first cable reel 1 is released and the second cable reel 2 is retracted at the same time, which greatly improves the winding speed of the cable 5, and at the same time, the operation is simple and the requirements for the size of the operating space are relatively low, and the cable 5 is prevented from being wound up by the other cable due to its excessive length when being wound up.

[0021] Specifically, step S3 is to release the first cable reel 1 and pull the midpoint of the cable strand of the cable 5 so that the cable 5 is pulled beyond a certain distance relative to the second cable reel 2, and then rotate the cable 5 at the midpoint of the cable strand to form a bent end 13, which is a cable strand loop; Specifically, step S4 is to temporarily fix the cable strand ring to the second cable reel 2.

[0022] In a specific embodiment of the present invention, a mark is made according to the cable strand to find the midpoint of the cable strand (corresponding to the center point of the turning saddle), and then a flexible traction device or jig is used to connect the cable strand, and the cable strand midpoint is pulled in a tangential direction away from the first cable reel 1 and the second cable reel 2, and the cable 5 cable strand midpoint is pulled from the edge of the second cable reel 2 beyond a distance of 20 to 30 times the cable strand diameter of the cable 5, and then the cable 5 cable is turned at the cable strand midpoint to form a bent end 13, which is a cable strand ring with a diameter of 20 times or more the cable strand diameter, preventing damage to the folded portion due to the turning of the cable 5.

[0023] The cable strand of the cable 5 is wound on the first cable reel 1 by adopting a vertical cable winding and horizontal cable alignment method.

[0024] In order to ensure smooth winding of the cable 5 when the first cable reel 1 is released and the second cable reel 2 is retracted, in a specific embodiment of the present invention, the first cable reel 1 and the second cable reel 2 adopt the same reel making process, and all adopt the traditional method of vertical cable winding from the inside out and horizontal cable alignment, specifically, the rolling axes of the reel racks of the first cable reel 1 and the second cable reel 2 are horizontal, and the production, transportation and release of the cable strand of the cable 5 all depend on the reel rack that is first reeled.

[0025] The cable strand of the cable 5 is wound on the first cable reel 1 by adopting a horizontal cable winding and vertical cable alignment method.

[0026] In order to ensure smooth winding of the cable 5 when the first cable reel 1 is released and the second cable reel 2 is retracted, in another specific embodiment of the present invention, the first cable reel 1 and the second cable reel 2 adopt the same reeling process, which are all in the traditional mode of horizontal cable winding from the inside out and vertical cable alignment, specifically, the rolling axes of the reel racks of the first cable reel 1 and the second cable reel 2 are vertical, and the cable 5 is detached from the reel rack after being reeled, which facilitates subsequent transportation.

[0027] A cable reel for a revolving cable including a first reel rack 3, a second reel rack 4, and a spin base 6, the first reel rack 3 being provided on the spin base 6 and rolling with the rotation of the spin base 6; The axial direction of the first reel rack 3 is parallel to the rolling axis direction of the spin base 6. The second reel rack 4 is used to temporarily fix the cable strand ring after the cable 5 is folded in half, The first reel rack 3 is used to wind up the cable strand of the cable 5 after it has been folded in half. Cable reel for swivel cable.

[0028] In a specific embodiment of the present invention, the second cable reel 2 includes a first reel rack 3, a second reel rack 4, and a spin base 6, the distance between the first reel rack 3 and the second reel rack 4 is 20 to 30 times the diameter of the cable strand of the cable 5, the spin base 6 is placed horizontally, the rolling axis is vertical, the first reel rack 3 and the second reel rack 4 both have a tapered tubular structure smaller at the top and larger at the bottom, the first reel rack 3 is mounted on the spin base 6 and rolls together with the spin base 6 around the vertical rolling axis, the cable strand ring after being folded in half is extrapolated onto the outer periphery of the second reel rack 4, and the tapered tubular structure of the second reel rack 4 forms a rigid support for the inside of the cable strand ring of the cable, ensuring the stability of the cable strand ring shape of the cable 5 after being folded in half and preventing damage to the folded portion of the cable strand of the cable 5.

[0029] In another embodiment of the present invention, the spin base 6 is placed vertically, the rolling axis is horizontal, and the first reel rack 3 and the second reel rack 4 are cylindrical structures placed horizontally.

[0030] In another embodiment of the present invention, the second reel rack 4 is a semi-hexagonal or semi-circular shape that can be machined to approximately match the contour of the contact area of ​​the cable strand ring.

[0031] In actual use, before the cable strand of the cable 5 is wound around the second cable reel 2, the first cable reel 1 and the second cable reel 2 are located on the same side of the cable strand of the cable 5, and the entire second cable reel 2 is located at the midpoint of the cable 5, and connected using a flexible pulling device or jig, and the cable strand midpoint is pulled in a tangential direction away from the first cable reel 1 and the second cable reel 2, and the cable strand midpoint of the cable 5 is pulled beyond a distance of 20 to 30 times the cable strand diameter of the cable 5 from the edge of the first cable reel 3, and then turns after reaching the edge of the second reel rack 4 to form a bent end 13. At this time, the bent end 13 is extrapolated to the outer periphery of the second reel rack 4, and the cable strands of the two cables 5 formed by turning and folding in half are located on the same side of the first reel rack 3 before being wound around the first reel rack 3.

[0032] The second reel rack 4 is provided on the spin base 6 and rolls as the spin base 6 rotates.

[0033] The first reel rack 3 and the second reel rack 4 are provided at different positions on the spin base 6, the axial directions of the first reel rack 3 and the second reel rack 4 are parallel to the rolling axis direction of the spin base 6, and the length along the axial direction of the second reel rack 4 is shorter than the length along the axial direction of the first reel rack 3.

[0034] In a specific embodiment of the present invention, the cross sections of the first reel rack 3 and the second reel rack 4 are tapered cylindrical structures of the same dimensions, the spin base 6 is coaxially mounted on the support disk 12, the first reel rack 3 and the second reel rack 4 are mounted in parallel to the support disk 12, and the maximum end cross-sectional inner diameter of both is 25 times the cable strand diameter and has a wall thickness of 0.2 m, however, the length along the axial direction of the second reel rack 4 is shorter than the length along the axial direction of the first reel rack 3, so as to avoid affecting the winding operation of the first reel rack 3 in fulfilling the temporary extrapolation of the bent end 13.

[0035] After the bent end 13 of the cable strand of the cable 5 is rotated and folded in half and extrapolated onto the second reel rack 4, the reeling operation on the first reel rack 3 is performed. Specifically, a method of horizontal cable winding from the inside to the outside and vertical cable alignment as shown in Figure 6 is adopted, and after the reel is created, the bent end 13 of the cable strand of the cable 5 is wound on the innermost side, and both the head and tail ends of the cable strand of the cable 5 are positioned on the outermost side.

[0036] The second reel rack 4 and the first reel rack 3 are provided coaxially.

[0037] In a specific embodiment of the present invention, the first reel rack 3, the second reel rack 4 and the spin base 6 are arranged coaxially, and the second reel rack 4 is positioned above the first reel rack 3, and the axial length of the second reel rack 4 is shorter than the axial length of the first reel rack 3, as long as it can meet the extrapolation requirements of the bent end 13.

[0038] The bent end 13 of the cable 5, which is formed by turning the cable strand and folding it in half, is inserted onto the second reel rack 4, and then the reel making operation is performed downward on the first reel rack 3.

[0039] In another embodiment of the present invention, the first reel rack 3 and the second reel rack 4 are provided coaxially and positioned on one side of the spin base 6 .

[0040] The second reel rack 4 is provided with a retaining structure 7, and the spin base 6 is provided with a temporary fixing structure 8.

[0041] In a specific embodiment of the present invention, in order to prevent the bent end 13 of the cable strand of the cable 5 from falling off the second reel rack 4, a slip-out prevention structure 7 is uniformly provided around the circumferential direction of the second reel rack 4. Specifically, the slip-out prevention structure 7 is a limit lever, and a temporary fixing device is provided on the spin base 6. The temporary fixing device is specifically a limit fastening member consisting of a screw 11 and a platen 10. The cable strand of the cable 5 passes through the limit fastening member, turns and folds in half at the second reel rack 4, and then is perforated from another limit fastening member. The bent end 13 is then firmly fixed to the second reel rack 4, and the folded cable strand of the cable 5 turns to the same side of the first reel rack 3. [Explanation of symbols]

[0042] 1. First Cable Reel 2 Second Cable Reel 3 First Reel Rack 4 Second Reel Rack 5 Cable 6. Spinbase 7. Anti-slip structure 8 Temporary fixing structure 9 Swing anchor structure 10 Platen 11 Screw 12 Support disc 13 Bent end

Claims

1. Step S1: winding a length of cable onto a first cable reel using a normal winding method in which the head of the cable strand of the cable is on the inside and the tail is on the outside; Step S2: leaving the second cable reel at the midpoint of the cable strand of the cable when winding the cable around the midpoint of the cable strand of the cable; Step S3 of turning the cable at the midpoint of the cable strand to form a bent end; A step S4 of temporarily fixing the bent end to a second cable reel; and step S5 of releasing the first cable reel and retracting the second cable reel until the cable is completely folded in half and wound around the second cable reel, Specifically, step S3 is to release the first cable reel and pull the midpoint of the cable strand of the cable so that the midpoint exceeds a certain distance relative to the second cable reel, and then rotate the cable at the midpoint of the cable strand to form a bent end, which is a cable strand loop; Specifically, step S4 is to temporarily fix the cable strand ring to a second cable reel; the second cable reel includes a first reel rack, a second reel rack, and a spin base, the first reel rack being provided on the spin base and rolling with the rotation of the spin base; an axial direction of the first reel rack is parallel to a rolling axis direction of the spin base; the second reel rack is used to temporarily fix the cable strand ring after the cable is folded in half; the first reel rack is used to wind up a cable strand of the cable after it has been folded in half; The second reel rack is provided with a slip-out prevention structure, and the spin base is provided with a temporary fixing structure. A method for making a reel for a rotating cable.

2. The cable strand of the cable is wound on a first cable reel by adopting a vertical cable winding and horizontal cable alignment mode; 2. The method for producing a reel of a rotating cable according to claim 1.

3. The cable strand of the cable is wound on a first cable reel by adopting a horizontal cable winding and vertical cable alignment mode; 2. The method for producing a reel of a rotating cable according to claim 1.

4. the second reel rack is provided on the spin base and rolls with the rotation of the spin base; the first reel rack and the second reel rack are provided at different positions on a spin base, the axial directions of the first reel rack and the second reel rack are parallel to a rolling axial direction of the spin base, and the length of the second reel rack along the axial direction is shorter than the length of the first reel rack along the axial direction; 2. The method for producing a reel of a rotating cable according to claim 1.

5. 2. The method for producing a reel for a swivel cable according to claim 1, wherein the second reel rack and the first reel rack are provided coaxially.

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