A construction test device for protecting the main cable of a suspension bridge and a manufacturing method thereof

Abstract

The present invention belongs to the technical field of the main cable protection construction of suspension bridges, and particularly relates to a test device for the main cable protection construction of a suspension bridge and a manufacturing method thereof. A test device for the main cable protection construction of a suspension bridge includes a main cable simulation component. The main cable simulation component includes a steel pipe and multiple layers of steel wires fixed on the outer side of the steel pipe. The steel wires are arranged parallel to the axis of the steel pipe. A support component is provided at the center of the steel pipe. Both ends of the support component are rotatably connected to support pedestals. The support pedestals are provided with steel pipe support shaft slots and steel wire holes; clamping components are respectively arranged on the outer sides of the steel wires on the side surfaces at both ends of the steel pipe. By wrapping steel wires outside the steel pipe, spot-welding and fixing the steel wires at the ends, and simultaneously using the clamping components to clamp the device, the present invention achieves the purpose of keeping the positions of the steel wires fixed, thereby realizing the simulation of the main cable of the suspension bridge, providing a test device for its protection construction test, and at the same time avoiding the large amount of use of steel wires and ensuring economy.

Description

Technical Field

[0001] The invention belongs to the technical field of the main cable protection construction of suspension bridges, and particularly relates to a test device for the main cable protection construction of a suspension bridge and a manufacturing method thereof. Background Art

[0002] The main cable protection of a suspension bridge is an important link to ensure the long-term and good operation of the suspension bridge. The traditional main cable protection design of a suspension bridge mainly adopts a combination of main cable putty protection, main cable wire winding and surface coating. The main cable putty protection is to brush anti-corrosion putty on the surface of the main cable for painting protection. The main cable wire winding is an operation in which a special wire winding device winds galvanized soft steel wires tightly and firmly around the main cable with a certain tension to protect the main cable wires and ensure the painting protection effect. The surface coating is to protect the main cable wire winding through various painting methods to ensure the wire winding effect. For the main cable painting and the main cable wire winding to play their intended roles, the construction quality of the corresponding links should be strictly controlled.

[0003] To ensure the smooth progress of the main cable protection construction operation and the protection effect, tests of corresponding indicators are generally required before the actual bridge construction operation. Providing a good test device for the test is the key to obtaining accurate test results. However, at present, most of the tests for the main cable protection operation are carried out by using some simplified test devices to replace the main cable for testing, and the limitations of the device itself may have a greater impact on the test results. Summary of the Invention

[0004] Aiming at the above problems, the purpose of the invention is to provide a test device and method for the main cable protection construction of a suspension bridge. The device wraps steel wires outside a steel pipe, spot-welds and fixes the steel wires at the ends, and at the same time uses a clamping assembly to clamp the device to achieve the purpose of keeping the position of the steel wires fixed, so as to realize the simulation of the main cable of the suspension bridge, provide a test device for its protection construction test, and at the same time avoid the large amount of use of steel wires and ensure economy.

[0005] The technical solution of the invention lies in: a test device for the main cable protection construction of a suspension bridge, including a main cable simulation assembly. The main cable simulation assembly includes a steel pipe and multiple layers of steel wires fixed outside the steel pipe. The steel wires are arranged parallel to the axis of the steel pipe. A support assembly is arranged at the center of the steel pipe. Both ends of the support assembly are rotatably connected with support pedestals. The support pedestals are provided with a steel pipe support shaft card slot and a steel wire hole; clamping assemblies are respectively arranged on the outer sides of the steel wires on both side surfaces of both ends of the steel pipe.

[0006] The support assembly includes a steel pipe support shaft, rib plates and two rotating bearings. The steel pipe support shaft is located inside the steel pipe and is welded and fixed to both ends of the steel pipe through the rib plates. Both ends of the steel pipe support shaft are respectively connected with rotating bearings, and the rotating bearings are installed in the steel pipe support shaft card slot.

[0007] The clamping assembly includes two semi-circular clamping hoops and a clamping bolt, and a rubber gasket is provided on the inner side of the semi-circular clamping hoops.

[0008] The diameters of the steel pipe support shaft slots on the support pedestal are distributed in a stepped manner.

[0009] The wire holes on the support pedestal are vertical rectangular through-holes. The wire holes and the steel pipe support shaft slots are both located on the symmetry axis of the support pedestal, and the bottom surface of the wire holes is lower than the outer edge of the upper part of the steel pipe.

[0010] A weight assembly is provided outside the wire hole on the side of the support pedestal away from the steel pipe. The weight assembly is a plurality of weights, and the weight of each weight is 50 Kg.

[0011] The wire is fixedly connected to the steel pipe through a wire welding point, and the wire is a galvanized wire.

[0012] A manufacturing method of a main cable protection construction test device for a suspension bridge. To manufacture any one of the above-mentioned main cable protection construction test devices for a suspension bridge, the following steps are included:

[0013] S1: Determine the length of the steel pipe in the main cable simulation component according to the size of the main cable of the suspension bridge. The diameter of the steel pipe is smaller than the diameter of the main cable of the suspension bridge. The length of the steel pipe is taken as the length of one segment of the main cable of the suspension bridge. The outer diameter of the steel pipe is 3 - 5 cm smaller than the diameter of the main cable, and the wall thickness of the steel pipe is taken as 1 cm.

[0014] S2: Sequentially complete the manufacture and installation of the support pedestal, the support component, and the steel pipe. The specific process is as follows:

[0015] S21: Pour concrete into two support pedestals respectively according to the length of the steel pipe to complete the manufacture of the support pedestals.

[0016] S22: Connect the steel pipe support shafts to the steel pipe as a whole through rib plates, and install rotating bearings at both ends of the support shafts.

[0017] S23: Hoist the steel pipe to the positions of the two support pedestals, and by moving the support pedestals, place the rotating bearings at both ends of the support shafts into the steel pipe support shaft slots.

[0018] S3: Weld and fix multiple layers of wires on the outer side of the steel pipe, and install a clamping assembly on the outer side of the multiple layers of wires to complete the manufacture of the main cable protection construction test device for the suspension bridge.

[0019] In step S3, when welding and fixing multiple layers of wires on the outer side of the steel pipe, the specific process is as follows:

[0020] S31: Weld and fix the first layer of wire on the outside of the steel pipe. The specific steps are as follows:

[0021] S311: Pass the steel wire through the steel wire holes on the two support pedestals in sequence, and cut it off after leaving a length of 40 cm at both ends;

[0022] S312: Connect the two ends of the steel wire to the weights of the counterweight assembly respectively, then let it hang naturally, tighten the steel wire, and make it in close contact with the steel pipe;

[0023] S313: Spot-weld and fix the steel wire at both ends of the steel pipe;

[0024] S314: Remove the weights at both ends of the steel wire. After leaving a length equivalent to the thickness of the steel pipe at the spot-welded joints of the galvanized steel wire, cut off the excess part;

[0025] S315: Bend the reserved parts at both ends of the galvanized steel wire towards the radial direction of the steel pipe, and carry out spot-welding and fixing to complete the wrapping of the first galvanized steel wire;

[0026] S316: Repeat the operations of S311~S312;

[0027] S317: By rotating the steel pipe, make the steel wire in close contact with the steel wire fixed in S315, and then spot-weld and fix the steel wire with the steel wire fixed in S315 and the steel pipe;

[0028] S318: Remove the weights at both ends of the steel wire, cut off the excess part of the steel wire at the end of the steel pipe without leaving a length, and complete the wrapping of the second steel wire;

[0029] S319: Repeat the operations of S311~S318 until the wrapping of the first layer of steel wire outside the steel pipe is completed;

[0030] S32: Carry out the wrapping of the second layer of steel wire outside the steel pipe, and the steps are as follows:

[0031] S321: Repeat step S311;

[0032] S322: Connect the two ends of the steel wire to the weights of the counterweight assembly respectively, then let it hang naturally, tighten the steel wire, and make it in close contact with the first layer of steel wire wrapped in S31;

[0033] S323: Spot-weld and fix the steel wire at the end of the first layer of steel wire in S31;

[0034] S324: Remove the weights at both ends of the steel wire, cut off the excess part of the steel wire at the end of the steel pipe without leaving a length, and complete the wrapping of the first steel wire of the second layer;

[0035] S325: Repeat steps S321 and S322;

[0036] S326: Rotate the steel pipe to bring the steel wire into close contact with the fixed steel wire in S324, then spot-weld the steel wire to the first-layer steel wire fixed in S31 and the steel wire fixed in S324, and repeat the steps in S324 to complete the wrapping of the second steel wire in the second layer.

[0037] S327: Repeat the steps in S321, S322, and S326 to complete the wrapping of the second-layer steel wire;

[0038] S33: Similarly, repeat the steps in S32 to complete the wrapping of each layer of steel wire on the outer side of the steel pipe.

[0039] The technical effects of the present invention are as follows: 1. By using a steel pipe instead of the galvanized steel wire inside the main cable, the present invention avoids the increase in test costs caused by the large use of steel wires; 2. By replacing the main cable simulation component, the present invention can be reused for multiple tests, increasing the convenience of test operation; 3. By spot-welding to fix the steel wire to the steel pipe, the present invention locks the tension inside the steel wire, and through the clamping component, it ensures that the position of the steel wire is fixed during the test, avoiding the influence on the test results caused by the change in the position of the steel wire; 4. By providing a test device for each index test of the main cable protection of the suspension bridge, the present invention breaks the limitation of the traditional test device that simulates the main cable through a simple device, simulates the main cable more realistically, and provides technical support for the test.

[0040] The following will be further described with reference to the drawings. Description of the Drawings

[0041] Figure 1 It is the front view of the structure of a main cable protection construction test device for a suspension bridge according to an embodiment of the present invention.

[0042] Figure 2 It is the three-dimensional structure schematic diagram of a main cable protection construction test device for a suspension bridge according to an embodiment of the present invention.

[0043] Figure 3 It is the structure schematic diagram of the support pedestal of a main cable protection construction test device for a suspension bridge according to an embodiment of the present invention.

[0044] Figure 4 It is the schematic diagram of the fixation of the end of the steel wire of a main cable protection construction test device for a suspension bridge according to an embodiment of the present invention.

[0045] Figure 5 It is the structure schematic diagram of the clamping component of a main cable protection construction test device for a suspension bridge according to an embodiment of the present invention.

[0046] Reference Signs: 1, main cable simulation component; 2, support component; 3, support pedestal; 4, counterweight component; 5, clamping component; 11, steel pipe; 12, steel wire; 13, steel wire solder joint; 21, steel pipe support shaft; 22, rib plate; 23, rotating bearing; 31, steel pipe support shaft slot; 32, steel wire hole; 51, semi-circular clamping hoop; 52, clamping bolt. Detailed Implementation Manner

[0047] Embodiment 1

[0048] As Figure 1 , Figure 2 shown, a suspension bridge main cable protection construction test device includes a main cable simulation component 1. The main cable simulation component 1 includes a steel pipe 11 and multiple layers of steel wires 12 fixed on the outer side of the steel pipe. The steel wires 12 are arranged parallel to the axis of the steel pipe 11. A support component 2 is provided at the center of the steel pipe 11. Both ends of the support component 2 are rotatably connected to a support pedestal 3. The support pedestal 3 is provided with a steel pipe support shaft slot 31 and a steel wire hole 32; clamping components 5 are respectively provided on the outer sides of the steel wires 12 on both side surfaces of the two ends of the steel pipe 11.

[0049] During the actual use process, the present invention forms the main cable simulation component 1 through the steel pipe 11 and multiple layers of steel wires 12 fixed on the outer side of the steel pipe, so as to truly simulate the main cable, provide a test device for each index test of the suspension bridge main cable protection, and provide technical support for the test operation; by using the steel pipe 11 to replace the galvanized steel wires inside the main cable, it avoids the increase in test costs caused by the large amount of use of steel wires, ensures economy, and increases the convenience of test operation.

[0050] Embodiment 2

[0051] Preferably, on the basis of Embodiment 1, in this embodiment, as Figure 3 shown, the support component 2 includes a steel pipe support shaft 21, a rib plate 22 and two rotating bearings 23. The steel pipe support shaft 21 is located inside the steel pipe 11 and is fixedly welded to both ends of the steel pipe 11 through the rib plate 22. Both ends of the steel pipe support shaft 21 are respectively connected with a rotating bearing 23, and the rotating bearing 23 is installed in the steel pipe support shaft slot 31.

[0052] During the actual use process, the support component 2 of the present invention is composed of a steel pipe support shaft 21, a rib plate 22 and a rotating bearing 23. The steel pipe support shaft 21 is welded to the steel pipe 11 through the rib plate 22 to form an integral body, and can move synchronously to ensure that the steel wires 12 are arranged parallel to the axis of the steel pipe 11.

[0053] Embodiment 3

[0054] Preferably, on the basis of Embodiment 1 or Embodiment 2, in this embodiment, as Figure 5As shown, the clamping assembly 5 includes two semi-circular clamping hoops 51 and a clamping bolt 52, and a rubber gasket is provided on the inner side of the semi-circular clamping hoops 51.

[0055] During actual use, the clamping assembly 5 of the present invention includes two semi-circular clamping hoops 51 and a clamping bolt 52, and a rubber gasket is provided on the inner side of the semi-circular clamping hoops 51 to ensure that the clamping assembly 5 can fix the steel wire 12 and ensure that the force-bearing condition of the main cable can be truly simulated.

[0056] Embodiment 4

[0057] Preferably, on the basis of Embodiment 1 or Embodiment 3, in this embodiment, the diameters of the steel pipe support shaft slots 31 on the support pedestal 3 are distributed in a stepped manner.

[0058] During actual use, the diameters of the steel pipe support shaft slots 31 on the support pedestal 3 of the present invention are distributed in a stepped manner to ensure uniform force on the steel pipe support shaft slots 31 and facilitate the installation of the rotating bearing 23.

[0059] Embodiment 5

[0060] Preferably, on the basis of Embodiment 1 or Embodiment 4, in this embodiment, the steel wire holes 32 on the support pedestal 3 are vertical rectangular through-holes, the steel wire holes 32 and the steel pipe support shaft slots 31 are both located on the symmetry axis of the support pedestal 3, and the bottom surface of the steel wire holes 32 is lower than the outer edge of the upper part of the steel pipe 11.

[0061] During actual use, the bottom surface of the steel wire holes 32 of the present invention is lower than the outer edge of the upper part of the steel pipe 11. When the steel wire 12 passes through the steel wire holes 32, by applying weights to both ends of the steel wire 12, the steel wire 12 can be in close contact with the steel pipe 11, which is convenient for welding.

[0062] Embodiment 6

[0063] Preferably, on the basis of Embodiment 1 or Embodiment 5, in this embodiment, a weight assembly 4 is provided outside the steel wire holes 32 on the side of the support pedestal 3 away from the steel pipe 11, the weight assembly 4 is a plurality of weights, and the weight of each weight is 50 Kg.

[0064] During actual use, the weight assembly 4 of the present invention is a plurality of weights, and the weight of each weight is 50 Kg, which is convenient for adjusting the weight of the counterweight in real time according to experimental requirements.

[0065] Embodiment 7

[0066] Preferably, on the basis of Embodiment 1 or Embodiment 6, in this embodiment, as Figure 4 shown, the steel wire 12 is fixedly connected to the steel pipe 11 through a steel wire welding point 13, and the steel wire 12 is a galvanized steel wire.

[0067] During actual use, the steel wire 12 of the present invention is fixedly connected to the steel pipe 11 through the steel wire welding point 13. The steel wire welding point 13 is a spot weld, which can not only ensure the firm connection between the steel pipe 11 and the steel wire 12, but also reduce the welding workload.

[0068] Example 8

[0069] A manufacturing method of a main cable protection construction test device for a suspension bridge. To manufacture any of the above-mentioned main cable protection construction test devices for a suspension bridge, the following steps are included:

[0070] S1: Determine the length of the steel pipe 11 in the main cable simulation component 1 according to the size of the main cable of the suspension bridge. The diameter of the steel pipe 11 is smaller than the diameter of the main cable of the suspension bridge. The length of the steel pipe 11 is taken as the length of one segment of the main cable of the suspension bridge. The outer diameter of the steel pipe 11 is 3 - 5 cm smaller than the diameter of the main cable, and the wall thickness of the steel pipe 11 is taken as 1 cm.

[0071] S2: Sequentially complete the manufacture and installation of the support pedestal 3, the support component 2, and the steel pipe 11. The specific process is as follows:

[0072] S21: Pour concrete into two support pedestals 3 respectively according to the length of the steel pipe 11 to complete the manufacture of the support pedestal 3.

[0073] S22: Weld the steel pipe support shaft 21 to the steel pipe 11 as a whole through the rib plate 22, and install the rotating bearings 23 at both ends of the support shaft 21.

[0074] S23: Lift the steel pipe 11 to the positions of the two support pedestals 3, and by moving the support pedestal 3, place the rotating bearings 23 at both ends of the support shaft 21 into the steel pipe support shaft card slots 31.

[0075] S3: Weld and fix multiple layers of steel wires 12 on the outside of the steel pipe 11, and install the clamping component 5 on the outside of the multiple layers of steel wires 12 to complete the manufacture of the main cable protection construction test device for the suspension bridge.

[0076] In the step S3, when welding and fixing multiple layers of steel wires 12 on the outside of the steel pipe 11, the specific process is as follows:

[0077] S31: Weld and fix the first layer of steel wire 12 outside the steel pipe 11. The specific steps are as follows:

[0078] S311: Pass the steel wire 12 through the steel wire holes 32 on the two support pedestals 3 in sequence, and cut it off after leaving a length of 40 cm at both ends.

[0079] S312: Connect the two ends of the steel wire 12 to the weights of the weight component 4 respectively, then let it hang naturally to tension the steel wire 12 and make it in close contact with the steel pipe 11.

[0080] S313: Spot-weld and fix the steel wire 12 at both ends of the steel pipe 11;

[0081] S314: Remove the weights at both ends of the steel wire 12. After leaving a length equivalent to the thickness of the steel pipe 11 at the spot-weld of the galvanized steel wire 12, cut off the excess;

[0082] S315: Bend the reserved parts at both ends of the galvanized steel wire 12 radially towards the steel pipe 11, and perform spot-welding and fixing to complete the wrapping of the first galvanized steel wire;

[0083] S316: Repeat the operations of S311~S312;

[0084] S317: By rotating the steel pipe 11, make the steel wire 12 in close contact with the steel wire that has been fixed in S315, and then perform spot-welding and fixing of the steel wire 12 with the steel wire that has been fixed in S315 and the steel pipe 11;

[0085] S318: Remove the weights at both ends of the steel wire 12, cut off the excess part of the steel wire 12 at the end of the steel pipe 11 without leaving a length, and complete the wrapping of the second steel wire;

[0086] S319: Repeat the operations of S311~S318 until the wrapping of the first layer of steel wire outside the steel pipe 11 is completed;

[0087] S32: Perform the wrapping of the second layer of steel wire 12 outside the steel pipe 11, and the steps are as follows:

[0088] S321: Repeat the steps of S311;

[0089] S322: Connect both ends of the steel wire 12 to the weights of the counterweight assembly 4 respectively, then let it hang naturally to tension the steel wire 12 and make it in close contact with the first layer of steel wire wrapped in S31;

[0090] S323: Perform spot-welding and fixing of the steel wire 12 with the end of the first layer of steel wire in S31;

[0091] S324: Remove the weights at both ends of the steel wire 12, cut off the excess part of the steel wire 12 at the end of the steel pipe without leaving a length, and complete the wrapping of the first steel wire in the second layer;

[0092] S325: Repeat the steps of S321 and S322;

[0093] S326: By rotating the steel pipe 11, make the steel wire 12 in close contact with the steel wire that has been fixed in S324, then perform spot-welding and fixing of the steel wire 12 with the first layer of steel wire fixed in S31 and the steel wire fixed in S324, and repeat the steps of S324 to complete the wrapping of the second steel wire in the second layer.

[0094] S327: Repeat steps S321, S322, and S326 to complete the wrapping of the second layer of steel wire.

[0095] S33: Similarly, repeat step S32 to complete the wrapping of each layer of steel wire on the outer side of the steel pipe.

[0096] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A construction test device for the protection of the main cable of a suspension bridge, characterized in that: It includes a main cable simulation component (1), and the main cable simulation component (1) includes a steel pipe (11) and multiple layers of steel wires (12) fixed on the outer side of the steel pipe. The steel wires (12) are arranged parallel to the axis of the steel pipe (11). A support component (2) is provided at the center of the steel pipe (11). Both ends of the support component (2) are rotatably connected to support pedestals (3), and a steel pipe support shaft slot (31) and a steel wire hole (32) are provided on the support pedestal (3); clamping components (5) are respectively provided on the outer sides of the steel wires (12) on both side surfaces of the two ends of the steel pipe (11). The support component (2) includes a steel pipe support shaft (21), rib plates (22) and two rotating bearings (23). The steel pipe support shaft (21) is located inside the steel pipe (11) and is fixedly welded to the two ends of the steel pipe (11) through the rib plates (22). Rotating bearings (23) are respectively connected to both ends of the steel pipe support shaft (21), and the rotating bearings (23) are installed in the steel pipe support shaft slots (31). The clamping component (5) includes two semi-circular clamping hoops (51) and clamping bolts (52), and rubber gaskets are provided on the inner sides of the semi-circular clamping hoops (51).

2. The construction test device for the protection of the main cable of a suspension bridge according to claim 1, characterized in that: The diameters of the steel pipe support shaft slots (31) on the support pedestal (3) are distributed in a stepped manner.

3. The construction test device for the protection of the main cable of a suspension bridge according to claim 1, characterized in that: The steel wire holes (32) on the support pedestal (3) are vertical rectangular through-holes. The steel wire holes (32) and the steel pipe support shaft slots (31) are both located on the symmetry axis of the support pedestal (3), and the bottom surface of the steel wire holes (32) is lower than the outer edge of the upper part of the steel pipe (11).

4. The construction test device for the main cable protection of a suspension bridge according to claim 1, wherein: A weight component (4) is provided outside the steel wire hole (32) on the side of the support pedestal (3) away from the steel pipe (11). The weight component (4) is multiple weights, and the weight of each weight is 50 Kg.

5. The construction test device for the main cable protection of a suspension bridge according to claim 1, wherein: The steel wires (12) are fixedly connected to the steel pipe (11) through steel wire welding points (13), and the steel wires (12) are galvanized steel wires.

6. A method for manufacturing a main cable protection construction test device for a suspension bridge, manufacturing a main cable protection construction test device for a suspension bridge as described in any one of claims 1 to 5, characterized in that: It includes the following steps: S1: Determine the length of the steel pipe (11) in the main cable simulation component (1) according to the size of the main cable of the suspension bridge. The diameter of the steel pipe (11) is smaller than the diameter of the main cable of the suspension bridge. The length of the steel pipe (11) is taken as the length of one segment of the main cable of the suspension bridge. The outer diameter of the steel pipe (11) is 3 - 5 cm smaller than the diameter of the main cable, and the wall thickness of the steel pipe (11) is taken as 1 cm; S2: Sequentially complete the fabrication and installation of the support pedestal (3), the support component (2), and the steel pipe (11). The specific process is as follows: S21: Pour concrete into two support pedestals (3) respectively according to the length of the steel pipe (11) to complete the fabrication of the support pedestals (3); S22: Weld the steel pipe support shaft (21) and the steel pipe (11) into a whole through the rib plates (22), and install rotating bearings (23) at both ends of the support shaft (21); S23: Hoist the steel pipe (11) to the positions of the two support pedestals (3), and by moving the support pedestals (3), place the rotating bearings (23) at both ends of the support shaft (21) into the steel pipe support shaft slots (31); S3: Weld and fix multiple layers of steel wires (12) on the outer side of the steel pipe (11), and install the clamping assembly (5) on the outer side of the multiple layers of steel wires (12) to complete the fabrication of the main cable protection construction test device for the suspension bridge.

7. The manufacturing method of a main cable protection construction test device for a suspension bridge according to claim 6, characterized in that: In the step S3, when welding and fixing multiple layers of steel wires (12) on the outer side of the steel pipe (11), the specific process is as follows: S31: Weld and fix the first layer of steel wires (12) outside the steel pipe (11). The specific steps are as follows: S311: Pass the steel wire (12) through the wire holes (32) on two support pedestals (3) in sequence, and cut it off after leaving a length of 40 cm at both ends. S312: Connect the two ends of the steel wire (12) to the weights of the weight assembly (4) respectively, then let it hang naturally to tension the steel wire (12) so that it is in close contact with the steel pipe (11). S313: Spot-weld and fix the steel wire (12) at both ends of the steel pipe (11). S314: Remove the weights at both ends of the steel wire (12), leave a length equivalent to the thickness of the steel pipe (11) at the spot-welded part of the galvanized steel wire (12), and cut off the excess part. S315: Bend the reserved parts at both ends of the galvanized steel wire (12) radially towards the steel pipe (11), and perform spot welding and fixing to complete the wrapping of the first galvanized steel wire. S316: Repeat the operations of S311~S312. S317: By rotating the steel pipe (11), make the steel wire (12) in close contact with the steel wire that has been fixed in S315, and then spot-weld and fix the steel wire (12) to the steel wire that has been fixed in S315 and the steel pipe (11). S318: Remove the weights at both ends of the steel wire (12), cut off the excess part of the steel wire (12) at the end of the steel pipe without leaving a length to complete the wrapping of the second steel wire. S319: Repeat the operations of S311~S318 until the wrapping of the first layer of steel wires outside the steel pipe (11) is completed. S32: Wrap the second layer of steel wires (12) outside the steel pipe (11). The steps are as follows: S321: Repeat the step of S311. S322: Connect the two ends of the steel wire (12) to the weights of the weight assembly (4) respectively, then let it hang naturally to tension the steel wire (12) so that it is in close contact with the first layer of steel wires wrapped in S31. S323: Spot-weld and fix the steel wire (12) to the ends of the first layer of steel wires in S31. S324: Remove the weights at both ends of the steel wire (12), cut off the excess part of the steel wire (12) at the end of the steel pipe without leaving a length to complete the wrapping of the first steel wire in the second layer. S325: Repeat the steps of S321 and S322. S326: By rotating the steel pipe (11), make the steel wire (12) in close contact with the steel wire that has been fixed in S324, then spot-weld and fix the steel wire (12) to the first layer of steel wires fixed in S31 and the steel wire fixed in S324, and repeat the step of S324 to complete the wrapping of the second steel wire in the second layer. S327: Repeat the steps of S321, S322 and S326 to complete the wrapping of the second layer of steel wires. S33: Similarly, repeat the step of S32 to complete the wrapping of each layer of steel wires outside the steel pipe.

Images