Method for quickly erecting large electric tower

Abstract

The application provides a large electric tower rapid assembling method, relates to the electric tower assembling technical field, and comprises the following operation steps: S1: constructing a tower foundation, synchronously embedding a tower body connecting piece and a cross beam fixed embedded part; S2: after the tower foundation concrete reaches the strength, installing the cross beam and locking; S3: installing an external auxiliary frame, a foundation frame, a standard frame, a top frame and a jacking assembly on the top of the cross beam, and installing by adopting a truck crane and manual operation. The application changes the traditional tower from bottom to top normal order assembling method, adopts the method of first top and then bottom reverse order assembling and synchronous jacking, the operation personnel stand on the bottom operation platform to perform the tower assembling operation under the cooperation of the truck crane, the problems of high safety risk, low efficiency and inflexibility of the traditional mast hoisting operation are eliminated, and the synchronous operation of multiple work surfaces is also possible, the tower assembling speed can be effectively accelerated, the use of large hoisting equipment is reduced, the jacking assembly can be repeatedly used, and the cost can be effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of power tower assembly technology, and more specifically, to a method for rapid assembly of large power towers. Background Technology

[0002] Transmission towers are trapezoidal or triangular tower-shaped structures with steel frames. They serve to support and protect overhead power lines, making them crucial infrastructure for power supply systems. With the development of ultra-high voltage (UHV) power supply technology, the size and height of transmission towers have increased significantly, making their construction increasingly difficult and posing greater safety risks. Traditionally, small towers are assembled on the ground and then hoisted as a whole using cranes. Large towers are mostly assembled by combining components into smaller units, then erected using a combination of masts, cranes, and manual labor. This process is time-consuming, carries high safety risks, and is extremely difficult. Erecting ultra-large power transmission towers approaching 100 meters in height requires significantly more manpower, machinery, and time. Furthermore, assembling a large number of large transmission towers will inevitably impact subsequent line laying and commissioning. Therefore, this paper proposes an improved method for the rapid erection of large power towers. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a method for the rapid erection of large power towers, which solves the problems of long construction time, high safety risks, high construction difficulty, high manpower and machinery requirements, and high costs in power tower construction.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A method for rapid erection of large power towers includes the following construction steps:

[0006] S1: Construct the iron tower foundation, and simultaneously pre-embed tower body connectors and cross beam fixing pre-embedded parts;

[0007] S2: After the concrete foundation of the iron tower reaches its strength, install the cross beam and lock it in place;

[0008] S3: Install external auxiliary frame, foundation frame, one standard frame section, top frame and lifting components on the top of the cross beam, using a truck crane in conjunction with manual labor for installation;

[0009] S4: Erect scaffolding work platforms in the surrounding area;

[0010] S5: Use a truck crane in conjunction with manual labor to assemble the head of the iron tower starting from the top of the top frame;

[0011] S6: After the tower head is assembled, disconnect the connection between the base frame and the standard frame. Use the lifting assembly to raise the standard frame and the assembled tower section by the height of one standard frame section. Install one standard frame section between the base frame and the raised standard frame section and connect and fix it with bolts.

[0012] S7: Workers stand on the scaffolding platform and, with the assistance of a truck crane, assemble the next section of the tower.

[0013] S8: Repeat steps S6 and S7 until the tower body is assembled;

[0014] S9: Connect the tower legs to the pre-embedded connectors in the tower foundation;

[0015] S10: Adjust the lifting force of the jacking assembly, and readjust and tighten the tower body connecting bolts for acceptance.

[0016] S11: Dismantle the surrounding scaffolding work platforms;

[0017] S12: Disconnect the top of the top frame from the tower, and dismantle the standard frame, top frame, foundation frame and external auxiliary frame section by section in the reverse order of jacking, while installing the internal connecting parts of the tower body at the same time;

[0018] S13: Remove the cross beam and complete the tower erection.

[0019] Preferably, the lifting assembly includes lifting cylinders, which are movably mounted on both sides of the upper surface of the cross beam and located inside the external auxiliary frame. Each lifting cylinder has a lifting crossbeam installed at its output end.

[0020] Preferably, each of the lifting beams is equipped with a limiting pin at both ends, and ear plates are installed on both sides of the two ends of the standard frame. Each ear plate has a U-shaped groove at the bottom that can cooperate with the limiting pin.

[0021] Preferably, each of the lifting cylinders is equipped with a mounting base plate at its bottom, and grooves are provided on both sides of the upper surface of the cross beam, with a mounting rod installed inside each groove.

[0022] Preferably, each of the mounting base plates has a mounting block installed on its lower surface, and each mounting block has a through hole through its surface, with each mounting rod inserted into the through hole at a corresponding position.

[0023] Preferably, a connecting spring is installed between the two side surfaces of each mounting block and the two side inner walls of the groove.

[0024] Preferably, an auxiliary working platform is installed on one side of the external auxiliary frame, and support frames are installed on both sides of the lower surface of the auxiliary working platform, with one end of each support frame installed on one side surface of the external auxiliary frame.

[0025] Preferably, guide sliders are installed on both sides of one end surface of the standard frame, and guide grooves that slide in cooperation with the guide sliders are provided inside the external auxiliary frame.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The lifting assembly is used to raise the top frame and the assembled upper structure of the tower by one standard frame section. A standard frame section is then installed between the foundation frame and the raised standard frame. The standard frames are bolted together, and also bolted to the foundation frame. The single lifting height is determined based on the tower's assembly requirements. This process is repeated, lifting and assembling simultaneously, until the tower is fully assembled. This method changes the traditional bottom-to-top sequential tower assembly method, adopting a top-first, bottom-later reverse sequence with simultaneous lifting. Workers stand on the bottom working platform and, with the assistance of a truck crane, assemble the tower. This eliminates the high safety risks, low efficiency, and inflexibility of traditional mast hoisting operations. It also allows for simultaneous work on multiple work surfaces, effectively accelerating tower assembly speed, reducing the use of large lifting equipment, and the reusable lifting assembly components, which effectively reduce costs. The telescopic design of the cross beam improves its applicability to assembling towers of different specifications. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the tower assembly according to the present invention;

[0029] Figure 2 This is a schematic diagram of the tower structure assembly of the present invention;

[0030] Figure 3 This is a schematic diagram of the specific structure of the lifting component of the present invention;

[0031] Figure 4 This is a side view of the lifting assembly of the present invention;

[0032] Figure 5 For the present invention Figure 4 Schematic diagram of the three-dimensional cross-section at point AA;

[0033] Figure 6 For the present invention Figure 4 Schematic diagram of the three-dimensional cross-section at point BB;

[0034] Figure 7 For the present invention Figure 5 Enlarged view at point C;

[0035] Figure 8 For the present invention Figure 6 Enlarged view at point D;

[0036] Figure 9 This is a top view of the cross beam of the present invention.

[0037] In the diagram: 1. Iron tower; 2. Iron tower foundation; 3. Scaffolding work platform; 4. Truck crane; 5. Cross beam; 501. Groove; 502. Mounting rod; 503. Connecting spring; 6. Tower leg; 7. External auxiliary frame; 701. Auxiliary work platform; 702. Support frame; 703. Guide slide; 8. Foundation frame; 9. Standard frame; 901. Guide slider; 10. Top frame; 11. Lifting assembly; 1101. Lifting cylinder; 1102. Lifting crossbeam; 1103. Limit pin; 1104. Mounting base plate; 1105. Mounting block; 1106. Through hole; 12. Ear plate; 1201. U-shaped groove. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0039] A method for rapid erection of large power towers includes the following construction steps:

[0040] S1: Construct the iron tower foundation 2, and simultaneously pre-embed the tower body connecting parts and cross beam 5 fixing pre-embedded parts;

[0041] S2: After the concrete of the iron tower foundation 2 reaches its strength, install the cross beam 5 and lock it in place;

[0042] S3: Install the external auxiliary frame 7, foundation frame 8, a standard frame section 9, top frame 10 and lifting assembly 11 on the top of the cross beam 5, and use a truck crane 4 in conjunction with manual labor for installation;

[0043] S4: Erect 3 scaffolding work platforms around the perimeter;

[0044] S5: Using a truck crane 4 in conjunction with manual labor, assemble the head of the iron tower 1 from the top of the top frame 10;

[0045] S6: After the head of the iron tower 1 is assembled, disconnect the connection between the base frame 8 and the standard frame 9. Use the lifting assembly 11 to lift the standard frame 9 and the assembled iron tower 1 part by the height of one section of the standard frame 9. Install one section of the standard frame 9 between the base frame 8 and the lifted standard frame 9, and connect and fix it with bolts.

[0046] S7: Workers stand on scaffolding work platform 3 and, with the assistance of truck crane 4, assemble the lower section of the tower body;

[0047] S8: Repeat steps S6 and S7 until the tower body is assembled;

[0048] S9: Connect the tower support leg 6 to the pre-embedded connector of the tower foundation 2;

[0049] S10: Adjust the lifting force of the jacking component 11, and readjust and tighten the tower body connecting bolts for acceptance.

[0050] S11: Dismantle the surrounding scaffolding work platform 3;

[0051] S12: Disconnect the top of the top frame 10 from the tower 1, and dismantle the standard frame 9, top frame 10, foundation frame 8 and external auxiliary frame 7 in reverse order of jacking, while simultaneously installing the internal connecting parts of the tower body;

[0052] S13: Remove cross beam 5 and complete the erection of tower 1.

[0053] like Figures 3 to 8 As shown, the lifting assembly 11 includes lifting cylinders 1101, which are movably mounted on both sides of the upper surface of the cross beam 5 and located inside the external auxiliary frame 7. Each lifting cylinder 1101 has a lifting crossbeam 1102 mounted at its output end. Each lifting crossbeam 1102 has a limiting pin 1103 mounted at both ends. Ear plates 12 are mounted on both sides of the end surfaces of the standard frame 9. Each ear plate 12 has a U-shaped groove 1201 at its bottom that can cooperate with the limiting pin 1103. Each lifting cylinder 1101... Each of the components is equipped with a mounting base plate 1104 at its bottom. The upper surface of the cross beam 5 has grooves 501 on both sides. Each groove 501 contains a mounting rod 502. Each mounting base plate 1104 has a mounting block 1105 on its lower surface. Each mounting block 1105 has a through hole 1106 on its surface. Each mounting rod 502 is inserted into the through hole 1106 at the corresponding position. A connecting spring 503 is installed between the two sides of each mounting block 1105 and the two sides of the inner wall of the groove 501.

[0054] Through the rotational engagement between the mounting block 1105 and the mounting rod 502, and under the connecting action of the connecting springs 503 on both sides, the lifting cylinder 1101 has a certain range of movement space, which can adjust the position of the lifting beam 1102 and facilitate the clamping and lifting of the standard frame 9.

[0055] like Figure 3As shown, an auxiliary work platform 701 is installed on one side of the external auxiliary frame 7. Support frames 702 are installed on both sides of the lower surface of the auxiliary work platform 701, and one end of each support frame 702 is installed on one side surface of the external auxiliary frame 7. The auxiliary work platform 701 installed on one side of the external auxiliary frame 7 facilitates the transportation of single standard frame sections 9.

[0056] like Figure 6 As shown, guide sliders 901 are installed on both sides of one end surface of the standard frame 9, and guide grooves 703 are opened inside the external auxiliary frame 7 to slide and engage with the guide sliders 901. Through the sliding engagement between the guide sliders 901 and the guide grooves 703, the movement trajectory of the standard frame 9 can be limited, making the lifting process more stable and preventing positional deviation.

[0057] The working principle of this method for rapid assembly of large power towers:

[0058] First, construct the tower foundation 2. The tower foundation 2 should be appropriately enlarged to include the pre-embedded anchor bolt range for the support components. Once the foundation concrete reaches its design strength, install the cross beam 5, adjust the tower legs 6, and anchor the cross beam 5 to the center of the tower to be erected 1 using anchor bolts. Then, use a truck crane 4 to install the external auxiliary frame 7, foundation frame 8, a standard frame section 9, top frame 10, and lifting assembly 11. Build a scaffolding platform 3 around the tower 1. Using the truck crane 4 and manual labor, assemble the upper structure of the tower 1 starting from the top frame 10. After assembly, loosen the connecting bolts between the foundation frame 8 and the standard frame 9. Use the lifting assembly 11 to raise the top frame 10 and the assembled upper structure of the tower 1 to the height of a standard frame section 9. Install a standard frame section 9 between the foundation frame 8 and the raised standard frame 9. The standard frames 9 are bolted together, and also bolted to the foundation frame 8. When the lifting cylinder 1101 is working, control the lifting beam 1102 to rise, thus limiting... The positioning pin 1103 is engaged with the U-shaped groove 1201 at the bottom of the ear plate 12 on the outer surface of the standard frame 9, thereby allowing the standard frame 9 to be lifted. The lifting cylinder 1101 is installed through the cooperation between the mounting block 1105 and the mounting rod 502 and the connection of the connecting spring 503. After the installation of one standard frame 9 is completed, the lifting beam 1102 is retracted, and the lifting cylinder 1101 can be moved outward so that the position of the ear plate 12 does not affect the movement of the lifting beam 1102. Then, the lifting beam 1102 is installed into the U-shaped groove 1201 of the next standard frame 9. The single lifting height is determined according to the assembly of the tower 1. This operation is repeated, lifting and assembling simultaneously, until the tower 1 is assembled to the bottom, and the bottom of the tower 1 is connected to the pre-embedded support of the tower 1 foundation. After tower 1 is erected, the connection between the top frame 10 and tower 1 is disconnected. Following the reverse lifting sequence, the standard frame 9, top frame 10, foundation frame 8, and external auxiliary frame 7 are dismantled section by section. Finally, the cross beam 5 is removed, completing the erection of the entire tower 1. This method changes the traditional bottom-to-top sequential tower erection method, adopting a top-first-bottom-later reverse assembly and simultaneous lifting approach. Workers stand on the bottom working platform and, with the assistance of the truck crane 4, assemble tower 1. This eliminates the high safety risks, low efficiency, and inflexibility associated with traditional mast hoisting operations. It also allows for simultaneous work on multiple work surfaces, effectively accelerating the tower 1 assembly speed, reducing the use of large lifting equipment, and the reusable lifting component 11, which effectively reduces costs. The telescopic design of the cross beam 5 improves its applicability to different tower 1 specifications.

[0059] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A method for rapid assembly of large power towers, characterized in that: The construction steps include the following: S1: Construct the iron tower foundation (2), and simultaneously pre-embed the tower body connectors and cross beams (5) to fix the pre-embedded parts; S2: After the concrete of the iron tower foundation (2) reaches the required strength, install the cross beam (5) and lock it; S3: Install external auxiliary frame (7), foundation frame (8), a standard frame section (9), top frame (10) and lifting assembly (11) on the top of the cross beam (5), and use a truck crane (4) in conjunction with manual labor for installation; S4: Build scaffolding work platforms in the surrounding area (3); S5: Using a truck crane (4) in conjunction with manual labor, the head of the iron frame (1) is assembled from the top of the top frame (10); S6: After the iron tower (1) head is assembled, disconnect the connection between the base frame (8) and the standard frame (9), use the lifting assembly (11) to lift the standard frame (9) and the assembled iron tower (1) part by the height of one section of the standard frame (9), install one section of the standard frame (9) between the base frame (8) and the lifted standard frame (9), and connect and fix it with bolts; S7: The workers stand on the scaffolding work platform (3) and, with the help of the truck crane (4), assemble the lower section of the tower body; S8: Repeat steps S6 and S7 until the tower body is assembled; S9: Connect the tower body support leg (6) to the pre-embedded connector of the tower foundation (2); S10: Adjust the lifting force of the jacking assembly (11), and readjust and tighten the tower body connecting bolts for acceptance. S11: Dismantle the surrounding scaffolding work platform (3); S12: Disconnect the top of the top frame (10) from the iron tower (1), and dismantle the standard frame (9), top frame (10), foundation frame (8) and external auxiliary frame (7) section by section in the reverse order of jacking, and install the internal connecting parts of the tower body at the same time; S13: Remove the cross beam (5) and complete the erection of the iron tower (1).

2. The method for rapid erection of a large power tower according to claim 1, characterized in that: The lifting assembly (11) includes a lifting cylinder (1101), which is movably mounted on both sides of the upper surface of the cross beam (5) and located inside the external auxiliary frame (7). Each lifting cylinder (1101) has a lifting crossbeam (1102) installed at its output end.

3. The method for rapid erection of a large power tower according to claim 2, characterized in that: Each of the lifting beams (1102) has a limiting pin (1103) installed at both ends. Both sides of the standard frame (9) are equipped with ear plates (12). Each ear plate (12) has a U-shaped groove (1201) at the bottom that can cooperate with the limiting pin (1103).

4. The method for rapid erection of a large power tower according to claim 2, characterized in that: Each of the lifting cylinders (1101) is equipped with a mounting base plate (1104) at its bottom. The upper surface of the cross beam (5) is provided with grooves (501) on both sides, and each groove (501) is equipped with a mounting rod (502).

5. A method for rapid erection of a large power tower according to claim 4, characterized in that: Each mounting base plate (1104) has a mounting block (1105) mounted on its lower surface. Each mounting block (1105) has a through hole (1106) through its surface. Each mounting rod (502) is inserted into the through hole (1106) at the corresponding position.

6. The method for rapid erection of a large power tower according to claim 5, characterized in that: A connecting spring (503) is installed between the two side surfaces of each mounting block (1105) and the two side inner walls of the groove (501).

7. The method for rapid erection of a large power tower according to claim 1, characterized in that: An auxiliary working platform (701) is installed on one side of the external auxiliary frame (7), and support frames (702) are installed on both sides of the lower surface of the auxiliary working platform (701). One end of each support frame (702) is installed on one side surface of the external auxiliary frame (7).

8. The method for rapid erection of a large power tower according to claim 1, characterized in that: Guide sliders (901) are installed on both sides of one end surface of the standard frame (9), and guide grooves (703) that slide in cooperation with the guide sliders (901) are provided inside the external auxiliary frame (7).

Images