Flange plate traction butt joint device of ultra-high voltage transmission tower

Abstract

The utility model discloses a flange plate traction butt joint device of an ultra-high voltage transmission tower, which comprises a first clamping ring arranged on one flange plate steel pipe and a second clamping ring arranged on the other flange plate steel pipe, and a traction mechanism used for guiding two flange plates to be in rapid butt joint is connected between the second clamping ring and the first clamping ring. The traction mechanism is provided with a plurality of traction units, each traction unit comprises a traction rope and a traction wheel set matched with the traction rope, the traction wheel sets are installed on the second clamping rings, one ends of the traction ropes are installed on the edges of the first clamping rings, and the traction wheel sets are provided with two traction wheels arranged side by side. And the other end of the traction rope passes through the space between the two traction wheels. Through the arrangement of the first clamping ring, the second clamping ring and the traction mechanism, rapid butt joint is achieved in the hoisting process, people can complete butt joint of flange plates within a safe distance, the butt joint strength is low, the butt joint speed is high, and the butt joint efficiency is high.

Description

Technical Field

[0001] This utility model relates to an ultra-high voltage transmission tower, and more particularly to a flange traction docking device for an ultra-high voltage transmission tower. Background Technology

[0002] During the installation of ultra-high voltage transmission towers, flanges are used to quickly install the towers, and then the flanges are tightened with bolts. Because the steel pipes with flanges are long and heavy, they are usually lifted by cranes and ropes, and then the flanges at the ends of the pipes are manually positioned and aligned to complete the assembly. This positioning and alignment method relies on cranes and ropes, which can lead to rotation or misalignment during the alignment process. Furthermore, it is physically demanding for operators and poses certain safety hazards.

[0003] While some automatic positioning or docking devices have been disclosed in current technology, these devices are overly complex in structure, have high manufacturing costs, are inconvenient to use, uneconomical, and have poor practicality. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a flange traction docking device for ultra-high voltage transmission towers that is reasonably designed, accurately positioned and connected, and highly safe, in order to overcome the shortcomings of the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flange traction and docking device for an ultra-high voltage transmission tower is characterized in that the device includes a first retaining ring mounted on the steel pipe of one flange and a second retaining ring mounted on the steel pipe of the other flange. A traction mechanism for guiding the two flanges to quickly dock is connected between the second retaining ring and the first retaining ring. The traction mechanism is provided with several traction units, each traction unit including a traction rope and a traction wheel set cooperating with the traction rope. The traction wheel set is mounted on the second retaining ring, one end of the traction rope is mounted on the edge of the first retaining ring, and the traction wheel set has two traction wheels arranged side by side. The other end of the traction rope passes between the two traction wheels.

[0007] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the first retaining ring and the second retaining ring are provided with arc-shaped ring bodies, and the arc-shaped ring bodies are provided with a retaining slot for being clamped on the steel pipe. The side of the arc-shaped ring body opposite to the flange is provided with a positioning pin that matches the opening on the flange. The inner diameter of the arc-shaped ring body is equal to the outer diameter of the steel pipe, and the outer diameter of the arc-shaped ring body is greater than the outer diameter of the flange. One end of the traction rope is fixed to the disc body outside the flange. At least two positioning pins are provided to ensure the stability of the arc-shaped ring body installation.

[0008] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the traction unit is provided in two parts, which are symmetrically arranged along the circumference of the first retaining ring or the second retaining ring.

[0009] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the traction wheel assembly is provided with a first traction wheel and a second traction wheel that cooperate with each other. The first traction wheel has a recessed part on its rim for positioning the traction rope and preventing it from slipping. The cross-section of the recessed part is arc-shaped. The second traction wheel has a blocking part that cooperates with the recessed part. The cross-section of the blocking part is straight.

[0010] Compared with existing technologies, this utility model facilitates installation by incorporating a first and second retaining ring with locking tabs. A traction mechanism consisting of a traction rope and a traction wheel enables rapid docking during hoisting, allowing personnel to dock the flanges from a safe distance. The docking is characterized by low strength, high speed, and high efficiency. Positioning pins facilitate the rapid installation and positioning of the first and second retaining rings. The flange traction docking device for ultra-high voltage transmission towers described in this utility model has a simple principle, reasonable structure, good docking safety, and high efficiency. Attached Figure Description

[0011] Figure 1 This is a structural diagram of the flange traction docking device for the ultra-high voltage transmission tower described in this utility model;

[0012] Figure 2 This is a structural diagram of the traction wheel assembly.

[0013] In the diagram: 1-First retaining ring, 2-Second retaining ring, 3-Positioning pin, 4-Traction rope, 5-Traction wheel assembly, 6-First traction wheel, 7-Second traction wheel, 8-Recessed part, 9-Blocking part. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] Reference Figure 1 and Figure 2A flange traction and docking device for an ultra-high voltage transmission tower is disclosed. The device includes a first retaining ring 1 mounted on one flange and a second retaining ring 2 mounted on the other flange. A traction mechanism for guiding the two flanges to quickly dock is connected between the second retaining ring 2 and the first retaining ring 1. The traction mechanism is provided with several traction units. Each traction unit includes a traction rope 4 and a traction wheel set 5 that cooperates with the traction rope 4. The traction wheel set 5 is mounted on the second retaining ring 2. One end of the traction rope 4 is mounted on the edge of the first retaining ring 1. The traction wheel set 5 has two traction wheels arranged side by side. The other end of the traction rope passes between the two traction wheels.

[0017] The first retaining ring 1 and the second retaining ring 2 are provided with arc-shaped ring bodies, which have a certain elasticity or deformation capacity. The arc-shaped ring bodies have slots for locking onto the steel pipe. On the side of the arc-shaped ring body opposite the flange, there is a positioning pin 3 that mates with an opening on the flange. The distance between the slots is less than the diameter of the steel pipe. Under the action of the positioning pin 3, it is prevented from falling off. The inner diameter of the arc-shaped ring body is equal to the outer diameter of the steel pipe, and the outer diameter of the arc-shaped ring body is greater than the outer diameter of the flange. One end of the traction rope is fixed to the disc body outside the flange. Two positioning pins are provided, with a certain distance between them to ensure the stability of the arc-shaped ring body's positioning. The arc-shaped ring body is locked onto the steel pipe by the positioning pins and the traction mechanism.

[0018] The traction unit has at least two units, which are symmetrically arranged circumferentially along the first or second retaining ring. The traction wheel assembly has a first traction wheel 6 and a second traction wheel 7 that cooperate with each other. The first traction wheel 6 has a recessed part 8 on its rim to position the traction rope and prevent it from slipping. The second traction wheel 7 has a blocking part 9 that cooperates with the recessed part.

[0019] The installation process of the flange traction docking device for ultra-high voltage transmission towers described in this utility model is as follows: First, the first retaining ring 1 is clamped onto one of the flange steel pipes, and the second retaining ring 2 is clamped onto the other flange steel pipe to be docked. At the same time, the first retaining ring 1 and the second retaining ring 2 are quickly positioned by the positioning pin 3. Then, the traction rope 4 is passed through the corresponding traction wheel set. During the process of the crane lifting the steel pipe, the traction rope 4 is manually pulled to quickly dock the flanges of the two steel pipes. After docking, bolts are pre-installed on the remaining flange openings. After the bolts are installed, the first retaining ring 1 and the second retaining ring 2 are removed, and the installed bolts are tightened. Then, all the bolts on the flange are completed, thereby completing the rapid positioning and docking of the flanges.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flange plate traction butt joint device of an extra-high voltage power transmission tower, characterized in that, The device comprises a first clamping ring mounted on one of the flanged steel pipes, a second clamping ring mounted on the other flanged steel pipe, and a traction mechanism connected between the first and second clamping rings for guiding the quick butt joint of the two flanges.

2. The flange plate pulling butt joint device of an extra-high voltage transmission tower according to claim 1, characterized in that, The first and second clamping rings are provided with arc-shaped ring bodies, and the arc-shaped ring bodies are provided with clamping ports for clamping the steel pipes.

3. The flange plate pulling butt joint device of an extra-high voltage transmission tower according to claim 1, characterized in that, The traction units are provided in pairs and symmetrically arranged along the circumferences of the first and second clamping rings.

4. The flange plate pulling butt joint device of the extra-high voltage transmission tower according to claim 1, characterized in that, The traction wheel set is provided with a first traction wheel and a second traction wheel that cooperate with each other. The first traction wheel is provided with a recessed portion on the rim thereof for positioning the traction rope and preventing the traction rope from slipping off. The second traction wheel is provided with a blocking portion that cooperates with the recessed portion.

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