Pre-stress convenient hoisting system for wind power tower drum and implementation method of pre-stress convenient hoisting system

Abstract

The invention discloses a wind power tower drum prestress convenient hoisting system and an implementation method thereof, belongs to the technical field of prestress construction, and solves the technical problem that existing hoisting construction equipment is poor in stability. The system comprises a hanging bracket installed on a top ring of a tower drum, a rotating arm rotating around the axis of the tower drum is arranged at the bottom of the hanging bracket, a first guide piece corresponding to a prestressed duct is arranged at one end of the rotating arm, a second guide piece is arranged at the other end of the rotating arm, and a third guide piece is arranged on a tower inner platform under the second guide piece; the hoisting device and the electric cable releasing disc are installed on the outer side of a door opening of the tower drum, and a traction piece of the hoisting device sequentially penetrates through the third guiding piece, the second guiding piece and the first guiding piece. Due to the fact that the first guiding piece and the second guiding piece are installed on the rigid rotating arm, and meanwhile the rotating arm is supported on the pore channel annular table through the supporting frame, the rotating arm cannot swing in the hoisting process, and the hoisting stability can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prestressed construction, more particularly, it relates to a wind power tower drum prestressed convenient hoisting system and an implementation method thereof. BACKGROUND

[0003] The patent publication document CN118619073A discloses a prestressed autonomous lifting construction core equipment and a construction method, which utilizes a climbing machine to autonomously climb to the top of a tower, the climbing machine realizes positioning by means of a rope and a hanging ring, and then the climbing machine is used to lift the prestressed cable by means of the traction of the rope.

[0004] Since the climbing machine in the above-mentioned equipment realizes positioning by means of the rope and the hanging ring, the rope and the hanging ring will swing greatly in the process of lifting the prestressed cable, and the stability is poor. SUMMARY

[0005] The technical problem to be solved by the present application is to solve the above-mentioned deficiencies of the prior art, and the purpose of the present application is to provide a wind power tower drum prestressed convenient hoisting system which can improve the lifting stability.

[0006] The second purpose of the present application is to provide an implementation method of the wind power tower drum prestressed convenient hoisting system.

[0007] In order to achieve the above-mentioned first purpose, the present application provides a wind power tower drum prestressed convenient hoisting system, which comprises a hanging bracket installed on a top ring of a tower drum, a rotating arm rotating around the axis of the tower drum is arranged at the bottom of the hanging bracket, a first guide is arranged at one end of the rotating arm corresponding to a prestressed hole, a second guide is arranged at the other end of the rotating arm, and a third guide is arranged on a tower inner platform directly below the second guide; a hoisting device and an electric cable paying-off drum are installed outside a door opening of the tower drum, and a traction member of the hoisting device sequentially passes through the third guide, the second guide and the first guide.

[0008] As a further improvement, the second guide and the third guide are located on the axis of the tower drum.

[0009] Further, the hanging bracket is provided with a rotating shaft passing downward through the rotating arm, and a bearing is arranged between the rotating arm and the rotating shaft.

[0010] Further, the first guide, the second guide and the third guide are all trolleys or guide wheels or guide rollers or guide blocks.

[0011] Further, one end of the rotating arm is provided with a support frame in contact with a hole annular table.

[0012] Further, the bottom of the support frame is provided with a roller.

[0013] Further, the middle part of the rotating arm is provided with a wire feeder, and the traction member passes through the wire feeder.

[0014] Further, the hoisting device comprises a winch, a rack for mounting the winch, the traction member is a steel wire rope, the top of one side of the rack is hingedly provided with an inclined telescopic rod, the bottom of the rack is hingedly provided with a horizontal telescopic rod, the inclined telescopic rod and the horizontal telescopic rod are hingedly provided with a connecting telescopic rod, the top of the rack is provided with a fourth guide, and the connecting telescopic rod is respectively provided with a fifth guide corresponding to the top of the door hole and a sixth guide corresponding to the bottom of the door hole.

[0015] Further, the hoisting device comprises a winch, a rack for mounting the winch, the traction member is a steel wire rope, the top of one side of the rack is hingedly provided with an inclined telescopic rod, the bottom of the rack is hingedly provided with a horizontal telescopic rod, the inclined telescopic rod and the horizontal telescopic rod are hingedly provided with a connecting telescopic rod, the top of the rack is provided with a fourth guide, and the connecting telescopic rod is respectively provided with a fifth guide corresponding to the top of the door hole and a sixth guide corresponding to the bottom of the door hole.

[0016] In order to achieve the above-mentioned purpose two, the present application provides an implementation method of a wind power tower cylinder prestress convenient hoisting system, characterized by comprising the following steps: Step one: before hoisting the tower cylinder top ring, manually install the hanger on the tower cylinder top ring on the ground, then install the rotating arm, install the first guide, the second guide, the support frame and the wire feeder on the rotating arm, and install the third guide on the tower inner platform; Step two: after the tower cylinder top ring hoisting is completed, arrange the hoisting device and the electric cable laying reel on the ground near the outside of the door hole, ensure that the cable laying direction and the hole entering direction are smooth, and then hoist and lay the cable into the electric cable laying reel; Step three: manually carry light hemp rope to the tower top, pass one end of the hemp rope through the wire feeder and the second guide and transport it to the bottom of the tower cylinder, pass the hemp rope through the third guide and connect it with the traction member of the hoisting device; start the wire feeder to pull the traction member through the third guide to the tower top, while the hoisting device releases the traction member, pass the other end of the hemp rope through the first guide and lower it from the prestress hole to guide the traction member to pass through the second guide, the wire feeder, the first guide and the prestress hole in sequence and then lower it to the ground; Step four: connect the traction member with the cable, start the hoisting device and the electric cable laying reel to start hoisting the cable, after the cable head is exposed from the prestress hole, fix the cable head, and remove the traction member; Step five: rotate the rotating arm to the position directly above the next prestress hole, start the wire feeder, and at the same time, the hoisting device releases the traction member to transport the traction member through the prestress hole until the ground; Step six: repeat steps four and five until the hoisting of all cables in the whole circle is completed; Step seven: the lifting system is dismantled, the traction member is connected by a hemp rope in the tower drum top ring, the traction member is lowered to the ground through the wire feeder, and the hoisting equipment is retracted, the first guide member, the second guide member, the support frame and the wire feeder are manually removed, then the rotating arm is removed, and finally the lifting frame is removed.

[0017] Advantages Compared with the prior art, the present application has the advantages of: 1. The first guide member and the second guide member of the present application are installed on a rigid rotating arm, and the rotating arm is supported on the hole annular table through the support frame, so that the lifting stability can be improved without swinging during the lifting process.

[0018] 2. The second guide member and the third guide member of the present application are located on the axis of the tower drum, and the tension of the traction member during the lifting of all the cables is located on the axis of the tower drum, so that the stress balance of the entire tower drum is good.

[0019] 3. The hoisting equipment of the present application is arranged outside the door opening of the tower drum, compared with the traditional method, the lifting frame of the present application has small stress, small size and light weight, and the safety of lifting can be improved.

[0020] 4. The inclined telescopic rod, the horizontal telescopic rod and the connecting telescopic rod of the present application can be flexibly adjusted in length according to the application scene, and have strong adaptability.

[0021] 5. The present application remotely controls the hoisting equipment and the electric cable reel through the wireless control box, the first receiver and the second receiver, which greatly improves the convenience of control. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural diagram of the present application; Figure 2 is a structural diagram of the lifting frame and the rotating arm in the present application; Figure 3 is a structural diagram of the rotation connection between the lifting frame and the rotating arm in the present application; Figure 4 is a structural diagram of the connection between the telescopic rod and the fixed rod in the present application; Figure 5 is a structural diagram of the lifting frame in the present application; Figure 6 is a structural diagram of the node disc in the present application; Figure 7 is a structural diagram of the support frame in the present application; Figure 8 is a front view structural diagram of the wire feeder in the present application; Figure 9 is a left view structural diagram of the wire feeder in the present application; Figure 10 This is a left-side structural schematic diagram of the lifting equipment and electric cable-releasing reel in this invention.

[0023] Among them: 1-Tower top ring, 2-Hanger, 3-Tower, 4-Rotating arm, 5-Prestressed duct, 6-First guide component, 7-Second guide component, 8-Inner platform of the tower, 9-Third guide component, 10-Door opening, 11-Lifting equipment, 12-Electric cable release reel, 13-Traction component, 14-Rotating shaft, 15-Bearing, 16-Drain ring platform, 17-Support frame, 18-Roller, 19-Wire feeder, 20-Wind machine, 21-Frame, 22-Inclined telescopic rod, 23-Horizontal telescopic rod, 24-Connecting telescopic rod, 25-Fourth guide component, 26-Fifth guide component, 27-Sixth guide component, 28-Wireless control box, 29- 30-Second receiver, 31-Cable, 32-Node plate, 33-Telescopic rod, 34-Fixing rod, 35-Connecting bolt, 36-Sleeve, 38-Nested nut, 39-Cross plate, 40-Angle plate, 41-Round tube, 42-Locking hole, 43-Column, 44-Connecting bolt, 45-Mounting base, 46-Driving wheel, 47-Passive wheel, 48-Motor, 49-Adjusting bolt, 50-Fixing plate, 51-Driving gear, 52-Driven gear, 53-Fixing bolt, 54-Seventh guide component, 55-Sleeve, 56-Adjusting screw, 57-Adjusting nut, 58-Connecting rod, 59-Working platform. Detailed Implementation

[0024] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0025] See Figures 1-10 A convenient hoisting system for prestressed wind turbine towers includes a hanger 2 installed on the top ring 1 of the tower. The bottom of the hanger 2 has a rotating arm 4 that rotates around the axis of the tower 3. One end of the rotating arm 4 has a first guide 6 corresponding to the prestressed duct 5, and the other end has a second guide 7. A third guide 9 is located on the inner platform 8 directly below the second guide 7. The system also includes a lifting device 11 and an electric cable reel 12 installed outside the doorway 10 of the tower 3. The traction component 13 of the lifting device 11 passes sequentially through the third guide 9, the second guide 7, and the first guide 6. The traction component 13 can be a wire rope, a chain, or other high-strength rope.

[0026] Since the first guide member 6 and the second guide member 7 are installed on the rigid rotating arm 4, they will not sway during the hoisting process, which can improve the hoisting stability. Moreover, since the hoisting equipment 11 is arranged outside the doorway 10 of the tower 3, compared with the conventional method, the hanger 2 of the present invention is subjected to less force, the size of the hanger 2 can be made smaller, the weight is lighter, and the hoisting safety can also be improved.

[0027] Preferably, the second guide member 7 and the third guide member 9 are located on the centerline of the tower 3. During the hoisting process of all cables 31, the tension of the traction member 13 is located on the centerline of the tower, resulting in good force balance of the entire tower.

[0028] Hanger 2 is a cross-shaped structure, mainly composed of a node plate 32, a telescopic rod 33, a fixing rod 34, and connecting bolts 35. The two ends of the telescopic rod 33 are inserted into the node plate 32 and the fixing rod 34, and then locked in place by the connecting bolts 35. The node plate 32 is welded together from two aluminum alloy cross plates 39, four aluminum alloy corner plates 40, and one aluminum alloy round tube 41. Specifically, the two cross plates 39 are located at the top and bottom ends of the round tube 41, and the four corner plates 40 are located at the four corners of the cross plates 39. Locking holes 42 are provided on the cross plates 39 for the connecting bolts 35 to lock the telescopic rod 33 in place. The telescopic rod 33 is an aluminum alloy square tube profile, with locking holes 42 for connecting bolts 35 to the node plate 32 and the fixing rod 34. Multiple sets of locking holes 42 are provided for adjusting the connection length. The fixing rod 34 is an aluminum alloy square tube profile that is one size larger than the telescopic rod 33, so as to facilitate the nesting of the telescopic rod 33. One end of the fixing rod 34 is provided with multiple sets of locking holes 42 for connecting bolts 35 to lock the telescopic rod 33. The other end is provided with slots for bolts to pass through and connect to the top ring 1 of the tower. The connecting bolts 3 are high-strength bolts.

[0029] The hanger 2 is equipped with a rotating shaft 14 that passes downward through the rotating arm 4, and a bearing 15 is provided between the rotating arm 4 and the rotating shaft 14. Specifically, the rotating shaft 14 is a high-strength bolt, the upper part of which can pass through the central hole (i.e., the round tube 41) of the node plate 32 and be fixed by a nut. A sleeve 36 is provided between the rotating arm 4 and the rotating shaft 14, and the bearing 15 is located in a stepped hole at the bottom of the sleeve 36. The diameter of the stepped hole is larger than the diameter of the sleeve 36, and the bearing 15 is locked by a nested nut 38. Preferably, the bearing 15 is a thrust ball bearing.

[0030] The first guide component 6, the second guide component 7, and the third guide component 9 are all pulleys, guide wheels, guide rollers, or guide blocks.

[0031] Furthermore, one end of the rotating arm 4 is provided with a support frame 17 that contacts the annular platform 16 of the channel. Specifically, the support frame 17 includes four columns 43, which are connected by connecting bolts 44, thereby improving the stability of the rotating arm 4 during operation. Furthermore, the bottom of the support frame 17 is provided with rollers 18, which can facilitate the rotation of the rotating arm 4.

[0032] A wire feeder 19 is located in the middle of the rotating arm 4, and the traction member 13 passes through the wire feeder 19. Specifically, the wire feeder 19 includes a mounting base 45, and the top of the mounting base 45 is provided with a driving wheel 46 and a driven wheel 47. The traction member 13 passes between the driving wheel 46 and the driven wheel 47. In this embodiment, there are three driving wheels 46 and three driven wheels 47. Figure 8 ,Figure 9 As shown, a motor 48 is provided at the bottom of the mounting base 45. The motor 48 has a driving gear 51, and the middle driving wheel 46 has a driven gear 52. The driving gear 51 and the driven gear 52 mesh. The driving wheels 46 on both sides are connected to the middle driving wheel 46 by a synchronous belt to achieve synchronous rotation. Further, a connecting rod 58 is provided between the three driven wheels 47. The mounting base 45 has three slots for mounting the driven wheels 47. One side of the mounting base 45 has an adjusting bolt 49 that is rotatably connected to the connecting rod 58. The gap between the driving wheel 46 and the driven wheel 47 can be adjusted by rotating the adjusting bolt 49. Fixing plates 50 are provided on both sides of the mounting base 45. The fixing plates 50 are connected to the rotating arm 4 by fixing bolts 53.

[0033] The lifting equipment 11 includes a winch 20, a frame 21 for mounting the winch 20, and a steel wire rope as the traction component 13. A tilting telescopic rod 22 is hinged to the top of one side of the frame 21, and a horizontal telescopic rod 23 is hinged to the bottom. A connecting telescopic rod 24 is hinged to both the tilting telescopic rod 22 and the horizontal telescopic rod 23. Each of the tilting telescopic rod 22, the horizontal telescopic rod 23, and the connecting telescopic rod 24 includes a sleeve 55, an adjusting screw 56, and an adjusting nut 57. The adjusting nut 57 is rotatably connected to the sleeve 55, and the adjusting screw 56 is inserted into the sleeve 55 and threadedly connected to the adjusting nut 57. The length can be adjusted by rotating the adjusting nut 57. The tilting telescopic rod 22, the horizontal telescopic rod 23, and the connecting telescopic rod 24 form an adjustable support, allowing for flexible length adjustment according to the application scenario, thus providing strong adaptability.

[0034] The top of the frame 21 is equipped with a fourth guide member 25. The connecting telescopic rods 24 are respectively equipped with a fifth guide member 26 corresponding to the top of the doorway 10 and a sixth guide member 27 corresponding to the bottom of the doorway 10. The horizontal telescopic rod 23 is equipped with a seventh guide member 54. After the cable 31 emerges from the electric cable release reel 12, it passes through the fourth guide member 25 and the fifth guide member 26 in sequence before hoisting, which improves the smoothness of the cable 31. The wire rope passes through the sixth guide member 27 and the seventh guide member 54, thus ensuring smooth cable release or retraction. The fourth guide member 25, the fifth guide member 26, the sixth guide member 27, and the seventh guide member 54 are all pulleys or guide wheels. Furthermore, the system also includes a wireless control box 28, a first receiver 29 for controlling the lifting equipment 11, and a second receiver 30 for controlling the electric cable reel 12. Remote control of the lifting equipment 11 and the electric cable reel 12 via the wireless control box 28, the first receiver 29, and the second receiver 30 greatly improves the convenience of control.

[0035] A method for implementing a prestressed wind turbine tower hoisting system includes the following steps one through seven: Step 1: Before hoisting the top ring 1 of the tower, manually install the hoisting frame 2 on the top ring 1 of the tower on the ground, then install the rotating arm 4, and install the first guide 6, the second guide 7, the support frame 17, and the wire feeder 19 on the rotating arm 4. Install the third guide 9 on the platform 8 inside the tower.

[0036] The installation sequence of each component is as follows: ① Secure the four fixed rods 34 to the top ring 1 of the tower with bolts; ② Insert the four telescopic rods 33 into the fixed rods 34; ③ (on the working platform 59) lift the node plate 32 and insert the other end of the telescopic rod 33 into the node plate 32; ④ Adjust the position of the node plate 32 and the telescopic rod 33, and insert the connecting bolts 35 to fix the entire cross hanger 2; ⑤ Install the rotating arm 4 (pre-assemble the rotating shaft 14 with the rotating arm 4); ⑥ Install the first guide 6 and the second guide 7; ⑦ Install the support frame 17 and fix it to the rotating arm 4 (the uprights 43, connecting bolts 44, and rollers 18 of the support frame 17 can be pre-assembled); ⑧ Install the wire feeder 19 at the middle position of the rotating arm 4.

[0037] Step 2: After the top ring 1 of the tower is hoisted, the hoisting equipment 11 and the electric cable release plate 12 are placed on the ground near the outside of the doorway 10. The outer wall of the tower 3 is firmly supported by the adjusting bracket to ensure that the cable release direction is smooth with the direction of entering the hole. Then the cable 31 is hoisted into the electric cable release plate 12.

[0038] Step 3: Manually carry a lightweight hemp rope to the top of the tower, pass one end of the rope through the wire feeder 19 and the second guide 7 and transport it to the bottom of the tower 3. The rope passes through the third guide 9 and connects to the traction component 13 of the lifting equipment 11. Start the wire feeder 19 to pull the traction component 13 through the third guide 9 to the top of the tower. At the same time, the lifting equipment 11 releases the traction component 13 and passes the other end of the rope through the first guide 6 and lowers it from the prestressed duct 5 to guide the traction component 13 to pass through the second guide 7, the wire feeder 19, the first guide 6, and the prestressed duct 5 in sequence before lowering it to the ground.

[0039] Step 4: Connect the traction component 13 to the cable 31, and start the lifting equipment 11 and electric cable release reel 12 to begin lifting the cable 31. The traction speed and cable release speed are coordinated via the wireless control box 28, enabling cable lifting operations such as acceleration, constant speed, deceleration, pause, and reversal. After the cable head of the cable 31 exposes the prestressed duct 5, fix the cable head of the cable 31 and remove the traction component 13.

[0040] Step 5: Rotate the rotating arm 4 to be directly above the next prestressed duct 5, start the wire feeder 19, and at the same time, the lifting equipment 11 releases the traction component 13 to transport the traction component 13 through the prestressed duct 5 to the ground.

[0041] Step Six: Repeat Steps Four and Five until the hoisting of all cables around the entire loop is completed.

[0042] Step 7: Dismantle the hoisting system. Connect the traction component 13 with hemp rope inside the top ring 1 of the tower. Lower the traction component 13 to the ground through the wire feeder 19 and put it into the hoisting equipment 11. Manually dismantle the first guide component 6, the second guide component 7, the support frame 17, and the wire feeder 19. Then dismantle the rotating arm 4 and finally dismantle the hanger 2.

[0043] Specifically, the dismantling sequence of each component is as follows: ① Dismantle the wire feeder 19; ② Dismantle the support frame 17; ③ Dismantle the first guide component 6 and the second guide component 7; ④ Dismantle the rotating arm 4; ⑤ Dismantle the node plate 32; ⑥ Dismantle the telescopic rod 33; ⑦ Dismantle the fixing rod 34; ⑧ Temporarily fix the wire feeder on the wall of the top ring 1 of the tower, and lower each rod and other tools to the ground in batches using hemp rope; ⑨ Lower the wire feeder to the ground using hemp rope, thus completing the lowering of all devices at the top of the tower.

[0044] This invention's suspension system fully utilizes the lightweight characteristics of aluminum alloy profiles to achieve lightweight rods, improves the adaptability of the device through bolted assembly, and leverages the customizable and serialized production capabilities of aluminum alloys to create standardized and systematic tooling. The entire device is made from readily available materials and is easy to process. The two guide lifting points, a first guide and a second guide, are designed at both ends of the same rotating arm, cleverly balancing the counter-tension between the two lifting points without requiring additional facilities to reverse the lifting points. By configuring a wire feeder on the top wire rope's movement path, the problem of the wire rope's own weight pulling back and making lowering difficult is solved. The designed wire feeder has an ingenious structure and is easy to install and remove. A wireless control box enables centralized linkage control of the winch and electric cable release reel, improving equipment layout and coordination efficiency, thereby optimizing the number of operators and reducing labor costs. This system is flexible in layout and has a wide range of applications, allowing for site-specific and convenient construction, improving the equipment's applicability and operational efficiency, shortening the tower construction cycle, and reducing construction costs.

[0045] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention, and these will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A convenient hoisting system for prestressed wind turbine towers, comprising a hanger (2) installed on the top ring (1) of the tower, characterized in that, The bottom of the hanger (2) is provided with a rotating arm (4) that rotates around the axis of the tower (3). One end of the rotating arm (4) is provided with a first guide (6) corresponding to the prestressed duct (5), and the other end is provided with a second guide (7). The inner platform (8) directly below the second guide (7) is provided with a third guide (9). It also includes a lifting device (11) and an electric cable release disc (12) installed outside the doorway (10) of the tower (3). The traction component (13) of the lifting device (11) passes through the third guide (9), the second guide (7), and the first guide (6) in sequence.

2. The wind turbine tower prestressed convenient hoisting system according to claim 1, characterized in that, The second guide (7) and the third guide (9) are located on the axis of the tower (3).

3. The wind turbine tower prestressed convenient hoisting system according to claim 1, characterized in that, The hanger (2) is provided with a rotating shaft (14) that passes downward through the rotating arm (4), and a bearing (15) is provided between the rotating arm (4) and the rotating shaft (14).

4. The wind turbine tower prestressed convenient hoisting system according to claim 1, characterized in that, The first guide (6), the second guide (7), and the third guide (9) are all pulleys, guide wheels, guide rollers, or guide blocks.

5. The wind turbine tower prestressed convenient hoisting system according to claim 1, characterized in that, One end of the rotating arm (4) is provided with a support frame (17) that contacts the annular platform (16) of the channel.

6. The wind turbine tower prestressed convenient hoisting system according to claim 5, characterized in that, The bottom of the support frame (17) is provided with rollers (18).

7. The wind turbine tower prestressed convenient hoisting system according to claim 1, characterized in that, The rotating arm (4) is provided with a wire feeder (19) in the middle, and the traction member (13) passes through the wire feeder (19).

8. The wind turbine tower prestressed convenient hoisting system according to claim 1, characterized in that, The lifting equipment (11) includes a winch (20) and a frame (21) for installing the winch (20). The traction component (13) is a steel wire rope. An inclined telescopic rod (22) is hinged to the top of one side of the frame (21), and a horizontal telescopic rod (23) is hinged to the bottom. A connecting telescopic rod (24) is hinged to the inclined telescopic rod (22) and the horizontal telescopic rod (23). A fourth guide (25) is provided at the top of the frame (21). The connecting telescopic rod (24) is provided with a fifth guide (26) corresponding to the top of the doorway (10) and a sixth guide (27) corresponding to the bottom of the doorway (10).

9. A convenient hoisting system for prestressed wind turbine towers according to claim 1, characterized in that, It also includes a wireless control box (28), a first receiver (29) for controlling the hoisting equipment (11), and a second receiver (30) for controlling the electric cable release reel (12).

10. A method for implementing the wind turbine tower prestressed convenient hoisting system according to any one of claims 1 to 9, characterized in that, Includes the following steps: Step 1: Before hoisting the top ring (1) of the tower, manually install the hanger (2) on the top ring (1) of the tower on the ground, and then install the rotating arm (4). Install the first guide (6), the second guide (7), the support frame (17), and the wire feeder (19) on the rotating arm (4), and install the third guide (9) on the platform (8) inside the tower. Step 2: After the top ring (1) of the tower is hoisted, the hoisting equipment (11) and the electric cable release plate (12) are arranged on the ground near the outside of the doorway (10) to ensure that the cable release direction is smooth with the direction of entering the hole. Then the cable (31) is hoisted into the electric cable release plate (12). Step 3: Manually carry a lightweight hemp rope to the top of the tower, pass one end of the hemp rope through the wire feeder (19) and the second guide (7) and transport it to the bottom of the tower (3). The hemp rope passes through the third guide (9) and connects to the traction component (13) of the lifting equipment (11). Start the wire feeder (19) to pull the traction component (13) through the third guide (9) to the top of the tower. At the same time, the lifting equipment (11) releases the traction component (13), passes the other end of the hemp rope through the first guide (6) and lowers it from the prestressed duct (5) to guide the traction component (13) to pass through the second guide (7), the wire feeder (19), the first guide (6), and the prestressed duct (5) in sequence before lowering it to the ground. Step 4: Connect the traction component (13) to the cable (31), start the lifting equipment (11) and electric cable release plate (12) to start lifting the cable (31), and after the cable head of the cable (31) is exposed in the prestressed duct (5), fix the cable head of the cable (31) and remove the traction component (13). Step 5: Rotate the rotating arm (4) to the top of the next prestressed duct (5), start the wire feeder (19), and at the same time, the lifting device (11) releases the traction member (13) to transport the traction member (13) through the prestressed duct (5) to the ground. Step Six: Repeat Steps Four and Five until the hoisting of all cables around the entire loop is complete; Step 7: Dismantle the hoisting system. Connect the traction component (13) with hemp rope inside the top ring (1) of the tower. Lower the traction component (13) to the ground through the wire feeder (19) and put it into the hoisting equipment (11). Manually remove the first guide component (6), the second guide component (7), the support frame (17), and the wire feeder (19). Then remove the rotating arm (4) and finally remove the hanger (2).

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