High-altitude installation method and auxiliary installation device for tower climbing operation of steel tube tower rod piece shock absorber

Abstract

The invention belongs to the technical field of wind vibration control of power equipment, and provides a high-altitude mounting method and mounting auxiliary device for tower climbing operation of a steel tube tower rod piece damper. A positioning mechanism is mounted on a connecting plate at the upper end of a steel tube; the first lock catch and the second lock catch are fixed to the positioning mechanism and the shock absorber correspondingly; after a cable penetrates through the second lock catch, one end of the cable is fixed to the first lock catch; the steel pipe is sleeved with a hoop on the shock absorber, the mooring rope is lowered to enable the shock absorber to slide to the middle position of the steel pipe, and then the other end of the mooring rope is fixed; the hoop located in the middle of the steel pipe is fastened, and installation of the shock absorber is completed; when a positioning mechanism and the like are installed at the upper end of the steel pipe, a worker uses a cross beam and other structures as an acting point to meet double-hand operation, and when the hoop is fastened in the middle of the steel pipe, the worker climbing by means of a lifting rope or the steel pipe only needs to tighten a nut on the hoop with one hand and can tightly hold the steel pipe with the other hand, so that the work efficiency is greatly improved. And the working efficiency and the safety are improved.

Description

Technical Field

[0001] This invention belongs to the field of wind vibration control technology for power equipment, and particularly relates to a method and auxiliary device for high-altitude installation of vibration dampers for steel pipe tower members during tower climbing operations. Background Technology

[0002] In steel pipe towers, the long and slender steel pipe members are prone to repeated micro-wind vibrations, leading to fatigue failure at the connection ends of the members. The micro-wind vibration of steel pipe tower members is essentially vortex-induced vibration of the circular tube. Tuned vibration damping devices (vibration dampers) can significantly reduce the vibration of the members and completely eliminate the micro-wind vibration problem.

[0003] When installing vibration dampers on steel pipe towers, especially in areas where only workers are allowed to climb the tower, workers need to install the vibration dampers in the middle of the steel pipe. During installation, because there are no crossbeams or other structures in the middle of the long steel pipe, workers need to rely on ropes or single poles (steel pipes) to climb and install the vibration dampers. During installation, workers have to work with both hands at the same time. Workers in a suspended state or on a single pole have poor stability, resulting in low installation efficiency and low safety for workers. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a method and auxiliary device for high-altitude installation of vibration dampers for steel pipe tower components. When workers install positioning mechanisms at the upper end of the steel pipe, they can use crossbeams or other structures as leverage points, eliminating the need for ropes or single poles (steel pipes) for climbing, thus allowing for two-handed operation. When tightening the clamps in the middle of the steel pipe, workers relying on ropes or single poles (steel pipes) only need to tighten the nuts on the clamps with one hand, while the other hand can grip the steel pipe, improving both work efficiency and safety.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a method for high-altitude installation of vibration dampers for steel pipe tower members during tower climbing operations, employing the following technical solution: A method for high-altitude installation of a vibration damper on a steel pipe tower member, utilizing an installation auxiliary device, includes a positioning mechanism that can be mounted on a connecting plate at the upper end of the steel pipe, and a fixing auxiliary mechanism connected to the positioning mechanism; the fixing auxiliary mechanism includes a first latch and a second latch respectively connected to the positioning mechanism and the vibration damper, the second latch being provided with a cable, one end of the cable being fixed to the first latch; the method includes: Install the positioning mechanism onto the connecting plate at the upper end of the steel pipe; fix the first and second locking buckles to the positioning mechanism and the shock absorber respectively; pass the cable through the second locking buckle and fix one end to the first locking buckle; put the clamp on the shock absorber onto the steel pipe, lower the cable so that the shock absorber slides to the middle position of the steel pipe, and fix the other end of the cable; tighten the clamp in the middle position of the steel pipe to complete the installation of the shock absorber.

[0006] Furthermore, positioning mechanisms are installed sequentially on the connecting plates at the upper ends of multiple steel pipes; after the cables are lowered so that multiple shock absorbers slide down to the middle position of the corresponding steel pipes, the other ends of the multiple cables are fixed; and the multiple clamps located in the middle position of the multiple steel pipes are tightened sequentially.

[0007] Furthermore, after the shock absorber installation is completed, the first latch on the shock absorber is removed; the positioning mechanism and fixing auxiliary mechanism are then retrieved.

[0008] Furthermore, the positioning mechanism includes a mounting nut that can be installed onto an existing bolt on the connecting plate, a screw fixed to the mounting nut, an adjusting nut disposed on the screw, and a ring disposed on the adjusting nut.

[0009] Furthermore, the second latch is installed onto the ring.

[0010] Furthermore, the height adjustment nut is adjusted according to the diameter of the steel pipe so that the ring is located outside the diameter range of the steel pipe.

[0011] To achieve the above objectives, in a second aspect, the present invention also provides an auxiliary device for high-altitude installation of vibration dampers for steel pipe tower members, employing the following technical solution: A high-altitude installation auxiliary device for vibration dampers on steel pipe tower members is characterized by comprising a positioning mechanism that can be installed on a connecting plate at the upper end of the steel pipe, and a fixing auxiliary mechanism connected to the positioning mechanism; the fixing auxiliary mechanism comprises a first latch and a second latch that are respectively connected to the positioning mechanism and the vibration damper, and a cable is provided on the second latch, one end of which is fixed to the first latch; Install the positioning mechanism onto the connecting plate at the upper end of the steel pipe; fix the first and second locking buckles to the positioning mechanism and the shock absorber respectively; pass the cable through the second locking buckle and fix one end to the first locking buckle; put the clamp on the shock absorber onto the steel pipe, lower the cable so that the shock absorber slides to the middle position of the steel pipe, and fix the other end of the cable; tighten the clamp in the middle position of the steel pipe to complete the installation of the shock absorber.

[0012] Furthermore, the positioning mechanism includes a mounting nut that can be installed onto an existing bolt on the connecting plate, a screw fixed to the mounting nut, an adjusting nut disposed on the screw, and a ring disposed on the adjusting nut.

[0013] Furthermore, the shock absorber is provided with a clamp, which includes a connecting hole capable of clamping the steel pipe.

[0014] Furthermore, the shock absorber includes an elastic element and a mass block disposed on the elastic element.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention installs a positioning mechanism onto a connecting plate at the upper end of a steel pipe; fixes a first and a second locking buckle to the positioning mechanism and the shock absorber respectively; passes a cable through the second locking buckle and fixes one end to the first locking buckle; places the clamp on the shock absorber onto the steel pipe, lowers the cable so that the shock absorber slides to the middle position of the steel pipe, and then fixes the other end of the cable; tightens the clamp in the middle position of the steel pipe to complete the installation of the shock absorber; throughout the process, when workers are installing the positioning mechanism at the upper end of the steel pipe, they can use the crossbeam or other structures as leverage points, without needing to rely on ropes or single poles (steel pipes) to climb, allowing for two-handed operation. When tightening the clamp in the middle position of the steel pipe, workers relying on ropes or single poles (steel pipes) only need to tighten the nut on the clamp with one hand, while the other hand can grip the steel pipe, improving work efficiency and safety. Attached Figure Description

[0016] The accompanying drawings, which form part of this embodiment, are used to provide a further understanding of this embodiment. The illustrative embodiments and their descriptions are used to explain this embodiment and do not constitute an improper limitation of this embodiment.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the installation of multiple vibration dampers according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the positioning mechanism structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the vibration damper structure according to an embodiment of the present invention; Among them, 1. Positioning mechanism; 101. Mounting nut; 102. Screw; 103. Height adjustment nut; 104. Ring; 2. Fixing auxiliary mechanism; 201. Cable; 202. First lock; 203. Second lock; 3. Clamp; 301. Connecting hole; 4. Shock absorber; 401. Elastic element; 402. Mass block; 5. Steel pipe; 6. Connecting plate. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] Ultra-high voltage (UHV) AC transmission line projects often utilize steel pipe towers. The slender members within these towers are prone to micro-wind vibrations. This continuous and repetitive vibration can cause fatigue failure at the ends of these members. In recent years, several UHV AC transmission line projects have experienced fatigue failure of the connecting plates in the steel pipe tower members due to micro-wind vibrations, posing a threat to the safe operation of the power grid.

[0021] As described in the background section, the micro-wind vibration of steel pipe tower members is essentially vortex-induced vibration of a circular tube. Tuned vibration absorption devices (vibration dampers) can significantly reduce the vibration of the members and completely eliminate the micro-wind vibration problem. However, the treatment of micro-wind vibration of steel pipe tower members requires high-altitude operations, and the installation problem urgently needs to be solved. Specifically, when installing vibration dampers on steel pipe towers, especially in places where only workers are allowed to climb the tower, workers need to install the vibration dampers in the middle of the steel pipe. During installation, because there are no crossbeams or other structures in the middle of the long steel pipe, workers need to rely on ropes or single poles (steel pipes) to climb and install the vibration dampers. During installation, workers work with both hands at the same time. Workers in a suspended state or on a single pole have poor stability, resulting in low installation efficiency and low worker safety.

[0022] To solve at least one of the above problems, such as Figure 1 As shown, one embodiment of the present invention provides a high-altitude installation auxiliary device for vibration dampers of steel pipe tower members, including a positioning mechanism 1 that can be installed on the upper end connecting plate 6 of the steel pipe 5, and a fixing auxiliary mechanism 2 connected to the positioning mechanism 1.

[0023] like Figure 3 As shown, the positioning mechanism 1 includes a mounting nut 101 that can be installed on the existing bolts of the connecting plate 6, a screw 102 fixed to the mounting nut 101, an adjusting nut 103 provided on the screw 102, and a ring 104 provided on the adjusting nut 103.

[0024] The steel pipe 5 is a structure such as an inclined rod on the steel pipe tower; the connecting plate 6 is a structure such as a steel plate or insert plate on the steel pipe tower used to connect the crossbeams, inclined beams and steel pipe 5, etc., and the crossbeams, inclined beams and steel pipe 5 are connected by bolts.

[0025] During operation, the second latch 203 in the fixing auxiliary mechanism 2 is installed onto the ring 104. The height adjustment nut 103 is adjusted according to the diameter of the steel pipe 5 so that the ring 104 is outside the diameter range of the steel pipe 5, avoiding interference between the cable 201 in the fixing auxiliary mechanism 2 and the steel pipe 5, and improving flexibility.

[0026] like Figure 1 As shown, the fixing auxiliary mechanism 2 includes a first latch 202 and a second latch 203 that are respectively connected to the positioning mechanism 1 and the shock absorber 4. A cable 201 is provided on the second latch 203, and one end of the cable 201 is fixed to the first latch 202.

[0027] The first latch 202 and the second latch 203 can be selected as structures such as rings with hooks, and can be detachably connected to the rings 104 reserved on the shock absorber 4 and the positioning mechanism 1 by means of hooks.

[0028] During operation, the positioning mechanism 1 is installed on the connecting plate 6 at the upper end of the steel pipe 5; the first locking buckle 202 and the second locking buckle 203 are respectively fixed to the positioning mechanism 1 and the shock absorber 4; after the cable 201 passes through the second locking buckle 203, one end is fixed to the first locking buckle 202; the clamp 3 on the shock absorber 4 is fitted onto the steel pipe 5, and after the cable 201 is lowered so that the shock absorber 4 slides down to the middle position of the steel pipe 5, the other end of the cable 201 is fixed; the clamp 3 in the middle position of the steel pipe 5 is tightened to complete the installation of the shock absorber 4.

[0029] Throughout the process, when workers are installing positioning mechanisms such as the upper end of steel pipe 5, they can use the crossbeams and other structures as leverage points without relying on ropes or single poles (steel pipes) to climb, allowing for two-handed operation. When tightening the clamp 3 in the middle of steel pipe 5, workers who rely on ropes or single poles (steel pipes) to climb only need to tighten the nut on the clamp 3 with one hand, while the other hand can firmly grip steel pipe 5, improving work efficiency and safety.

[0030] like Figure 1 As shown, the shock absorber 4 is provided with the clamp 3, which includes a connecting hole 301 that can clamp the steel pipe 5; optionally, the connecting hole 301 includes two ring structures, and the two ends of the two ring structures are connected by bolts and nuts respectively. One end of the nut is fixed on one ring structure, and the other end passes through a pre-reserved through hole on the other ring structure and is then fitted with a bolt. By tightening the bolt, the two ring structures can clamp the steel pipe 5.

[0031] like Figure 4As shown, the shock absorber 4 includes a shock absorber body, an elastic element 401 disposed on the shock absorber body, and a mass block 402 disposed on the elastic element 401. The shock absorber 4 adopts the principle of tuned vibration absorption. It contains the elastic element 401 and the mass block 402. The vibration frequency of the mass block 402 is close to the first-order vibration frequency of the steel pipe 5. When the steel pipe 5 vibrates in a light breeze, the mass block 402 transfers the vibration energy through resonance, significantly reducing the vibration of the steel pipe 5 itself. The elastic element 401 can be optionally a spring.

[0032] like Figure 2 As shown, when installing multiple shock absorbers 4, positioning mechanisms 1 are installed sequentially on the connecting plates 6 at the upper ends of multiple steel pipes 5; after lowering the cables 201 so that multiple shock absorbers 4 slide down to the middle position of the corresponding steel pipes 5, the other ends of the cables 201 are fixed; and the multiple clamps 3 located in the middle position of the multiple steel pipes 5 are tightened sequentially.

[0033] After the shock absorber 4 is installed, the first latch 202 is removed from the shock absorber 4; the positioning mechanism 1 and the fixing auxiliary mechanism 2 are then retrieved.

[0034] An embodiment of the present invention also provides a method for high-altitude installation of vibration dampers for steel pipe tower members, which uses the auxiliary device for high-altitude installation of vibration dampers for steel pipe tower members as described in the present invention, including: Install the positioning mechanism 1 onto the connecting plate 6 at the upper end of the steel pipe 5; fix the first latch 202 and the second latch 203 onto the positioning mechanism 1 and the shock absorber 4 respectively; pass the cable 201 through the second latch 203 and fix one end to the first latch 202; put the clamp 3 on the shock absorber 4 onto the steel pipe 5, lower the cable 201 so that the shock absorber 4 slides down to the middle position of the steel pipe 5, and then fix the other end of the cable 201; tighten the clamp 3 in the middle position of the steel pipe 5 to complete the installation of the shock absorber 4.

[0035] During operation, the second latch 203 in the fixing auxiliary mechanism 2 is installed onto the ring 104. The height adjustment nut 103 is adjusted according to the diameter of the steel pipe 5 so that the ring 104 is outside the diameter range of the steel pipe 5, avoiding interference between the cable 201 in the fixing auxiliary mechanism 2 and the steel pipe 5, and improving flexibility.

[0036] Throughout the process, when workers are installing positioning mechanisms such as the upper end of steel pipe 5, they can use the crossbeams and other structures as leverage points without relying on ropes or single poles (steel pipes) to climb, allowing for two-handed operation. When tightening the clamp 3 in the middle of steel pipe 5, workers who rely on ropes or single poles (steel pipes) to climb only need to tighten the nut on the clamp 3 with one hand, while the other hand can firmly grip steel pipe 5, improving work efficiency and safety.

[0037] When installing multiple shock absorbers 4, the positioning mechanism 1 is installed on the connecting plate 6 at the upper end of multiple steel pipes 5 in sequence; after the cable 201 is lowered so that multiple shock absorbers 4 slide down to the middle position of the corresponding steel pipes 5, the other end of the multiple cable 201 is fixed; and the multiple clamps 3 located in the middle position of multiple steel pipes 5 are tightened in sequence.

[0038] After the shock absorber 4 is installed, the first latch 202 is removed from the shock absorber 4; the positioning mechanism 1 and the fixing auxiliary mechanism 2 are then retrieved.

[0039] The above description is merely a preferred embodiment of this practice and is not intended to limit the scope of this practice. Various modifications and variations can be made to this practice by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this practice should be included within the protection scope of this practice.

Claims

1. A method for high-altitude installation of vibration dampers for steel pipe tower members, characterized in that, An installation auxiliary device is used, including a positioning mechanism (1) that can be installed on a connecting plate (6) at the upper end of a steel pipe (5), and a fixing auxiliary mechanism (2) connected to the positioning mechanism (1); the fixing auxiliary mechanism (2) includes a first latch (202) and a second latch (203) that are respectively connected to the positioning mechanism (1) and the shock absorber (4), and a cable (201) is provided on the second latch (203), one end of the cable (201) being fixed to the first latch (202); the method includes: Install the positioning mechanism (1) onto the connecting plate (6) at the upper end of the steel pipe (5); fix the first buckle (202) and the second buckle (203) onto the positioning mechanism (1) and the shock absorber (4) respectively; pass the cable (201) through the second buckle (203) and fix one end to the first buckle (202); put the clamp (3) on the shock absorber (4) onto the steel pipe (5), lower the cable (201) so that the shock absorber (4) slides down to the middle position of the steel pipe (5), and fix the other end of the cable (201); tighten the clamp (3) in the middle position of the steel pipe (5) to complete the installation of the shock absorber (4).

2. The method for high-altitude installation of vibration dampers for steel pipe tower members as described in claim 1, characterized in that, Positioning mechanisms (1) are installed sequentially on the connecting plates (6) at the upper ends of multiple steel pipes (5); after lowering the cables (201) so that multiple shock absorbers (4) slide down to the middle position of the corresponding steel pipes (5), the other ends of the multiple cables (201) are fixed; and the multiple clamps (3) located in the middle position of multiple steel pipes (5) are tightened sequentially.

3. The method for high-altitude installation of vibration dampers for steel pipe tower members as described in claim 1, characterized in that, After the shock absorber (4) is installed, the first latch (202) is removed from the shock absorber (4); the positioning mechanism (1) and the fixing auxiliary mechanism (2) are retrieved.

4. The method for high-altitude installation of vibration dampers for steel pipe tower members as described in claim 1, characterized in that, The positioning mechanism (1) includes a mounting nut (101) that can be installed on an existing bolt of the connecting plate (6), a screw (102) fixed to the mounting nut (101), an adjusting nut (103) provided on the screw (102), and a ring (104) provided on the adjusting nut (103).

5. The method for high-altitude installation of vibration dampers for steel pipe tower members as described in claim 4, characterized in that, The second latch (203) is installed onto the ring (104).

6. The method for high-altitude installation of vibration dampers for steel pipe tower members as described in claim 4, characterized in that, The height adjustment nut (103) is adjusted according to the diameter of the steel pipe (5) so that the ring (104) is outside the diameter range of the steel pipe (5).

7. A high-altitude installation auxiliary device for vibration dampers on steel pipe tower members, characterized in that, It includes a positioning mechanism (1) that can be installed on the upper end connecting plate (6) of the steel pipe (5), and a fixing auxiliary mechanism (2) connected to the positioning mechanism (1); the fixing auxiliary mechanism (2) includes a first latch (202) and a second latch (203) that are respectively connected to the positioning mechanism (1) and the shock absorber (4), and a cable (201) is provided on the second latch (203), one end of the cable (201) being fixed to the first latch (202); Install the positioning mechanism (1) onto the connecting plate (6) at the upper end of the steel pipe (5); fix the first buckle (202) and the second buckle (203) onto the positioning mechanism (1) and the shock absorber (4) respectively; pass the cable (201) through the second buckle (203) and fix one end to the first buckle (202); put the clamp (3) on the shock absorber (4) onto the steel pipe (5), lower the cable (201) so that the shock absorber (4) slides down to the middle position of the steel pipe (5), and fix the other end of the cable (201); tighten the clamp (3) in the middle position of the steel pipe (5) to complete the installation of the shock absorber (4).

8. The high-altitude installation auxiliary device for vibration dampers on steel pipe tower members as described in claim 7, characterized in that, The positioning mechanism (1) includes a mounting nut (101) that can be installed on an existing bolt of the connecting plate (6), a screw (102) fixed to the mounting nut (101), an adjusting nut (103) provided on the screw (102), and a ring (104) provided on the adjusting nut (103).

9. The high-altitude installation auxiliary device for vibration dampers on steel pipe tower members as described in claim 7, characterized in that, The shock absorber (4) is provided with the clamp (3), which includes a connecting hole (301) that can be used to clamp the steel pipe (5).

10. The high-altitude installation auxiliary device for vibration dampers on steel pipe tower members as described in claim 7, characterized in that, The shock absorber (4) includes an elastic element (401) and a mass block (402) disposed on the elastic element (401).

Images