CN201528158U - Double string insulator balance hanging point connection tool - Google Patents

Abstract

The utility model discloses a double-string insulator balance hanging point connecting tool, which comprises two connecting plates arranged parallelly up and down, one end of the two connecting plates is open and the other end is connected together; the surfaces of the two connecting plates at the opening end correspond to A connecting hole is provided at the position, and the connecting hole is used for connecting with the external connecting plate; the connecting plate at the connecting end is fixedly connected with a shackle, and the shackle is used for hooking with the external load-bearing tool. The utility model has the advantages of simple structure, convenient use, small size, light weight, low cost, convenient installation and replacement connection, wide application range and the like. When the utility model is adopted to replace the tension double-string insulators, there is no need to use too many appliances, the construction efficiency is high, and the operating utilization rate of the transmission line can be improved.

Description

Double string insulator balance hanging point connection tool

technical field

The utility model relates to the field of special hardware for mechanical traction, in particular to a balance hanging point connection tool for double-string insulators of tension towers of transmission lines.

Background technique

For traditional 220kV transmission line tension towers, the external insulation configuration adopts double strings of porcelain or composite insulators. In order to improve the anti-pollution flashover ability of transmission lines, the porcelain insulators are gradually replaced by composite insulators. During the construction process, due to the direction of traction The change of the insulator string caused the serious inclination problem, especially for the steel tower with a large actual rotation angle of the tension tower, due to the increase of the angle between the two tension extension lines, the insulators in the whole string incline more seriously to the outer angle. The common reason for insulator string inclination is that the suspension point and traction point are not on the center line of the wire tension: the hanging point on the cross-arm side, the load-bearing tool, and the hanging point on the wire side, no matter what the reason is, it will cause tension The tension of the iron tower is unbalanced, and the whole string of insulators is tilted. After this problem occurs, it will not only fail to operate normally, but will also cause the whole string of insulators to turn over and the wires to twist when it is serious, resulting in equipment damage and construction workers falling from high altitude. In the past, when replacing double-strand insulators, the measures taken were mostly to hang 3T chain hoists on both sides of the main traction tool, and then adjust the chain hoists together while pulling the wires, so as to continuously adjust the unbalanced tension to maintain the tension of the insulators. The horizontal state of the string, although this method is effective, but the operation time is too long, the safety and stability are poor, and the efficiency of the input of manpower is low. When abnormal problems occur and the working position is changed, due to the use of more appliances, the construction period will be extended and the reduction will be reduced. The operation utilization rate of the transmission line is reduced, and a serious waste of resources is caused.

Utility model content

The purpose of the utility model is to provide a double string insulator balance hanging point connection tool, the connection tool does not need to use too many appliances to replace the tension double string insulator, the construction efficiency is high, and the operation utilization rate of the transmission line can be improved.

In order to achieve the above-mentioned purpose, the double-string insulator balance hanging point connecting tool of the present invention includes two connecting plates arranged in parallel up and down, one end of the two connecting plates is open and the other end is connected together; the surfaces of the two connecting plates at the open end are Corresponding positions are provided with connecting holes, which are used for connecting with the external connecting plate; the connecting plate at the connecting end is fixedly connected with a shackle, and the shackle is used for hooking with the external load-bearing tool.

The connecting plate is a high-density aluminum alloy plate, and the connecting hole is a screw hole; the shackle is a high-strength shackle, and the high-strength shackle includes a U-shaped bar and a shackle bolt, and the two open ends of the U-shaped bar are The rod body on the side is provided with a through hole, and the shackle bolt is penetrated in the through hole and is used for hooking with the external load-bearing tool, and the closed end of the U-shaped rod is fixedly connected to the connecting plate.

The connecting holes are fixing bolt holes.

The gap between the two connecting plates stacked up and down in parallel is greater than the thickness of the board body of the external connecting plate.

The thickness of the two connecting plates is 10 mm, and the gap between the two connecting plates is 15 mm.

The utility model has the following advantages:

1. The utility model has the advantages of simple structure, convenient use, small size, light weight, low cost, easy installation and replacement connection, and wide application range. When the utility model is adopted to replace the tension double-string insulators, there is no need to use too many appliances, the construction efficiency is high, and the operating utilization rate of the transmission line can be improved.

2. The specific setting of the connecting plate and the shackle is simple and convenient, and it is easy to connect and use.

3. The connection holes are fixed bolt holes, which are convenient for connecting the external connecting plate and connecting plate with bolts.

4. The gap between the two connecting plates is greater than the thickness of the outer connecting plate, which is convenient for inserting the outer connecting plate between the two connecting plates.

5. The thickness of the two connecting plates is 10 mm, which can ensure the strength of the connecting plate without consuming too much material; the gap between the two connecting plates is 15 mm, which is convenient for inserting the external connecting plate into the gap.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic diagram of the structure of the utility model connected with an external connecting plate and a load-bearing tool.

Detailed ways

As shown in Figure 1 and Figure 2, the dual-string insulator balance hanging point connection tool of the present invention includes two high-density aluminum alloy plates 1 arranged in parallel up and down, one end of the two high-density aluminum alloy plates 1 is open and correspondingly arranged There are fixing bolt holes 2, and the fixing bolt holes 2 are used to connect with the external connecting plate (including triple connecting plate 8 and quadruple connecting plate 9 as shown in Figure 2), and the other ends of the two high-density aluminum alloy plates 1 are connected together and A high-strength shackle is fixedly connected, and the high-strength shackle includes a U-shaped rod 5, a shackle bolt 6, and a nut 4. The rod body on both sides of the U-shaped rod 5 opening end is provided with a through hole 5A. During use, the shackle bolt 6 is passed through the through hole 5A, and its right end passes through the right through hole 5A and is locked in the through hole 5A by the nut 4. Tightening the nut 4 will make the nut 4 compress the U-shaped The rod body 5 of the rod. The shackle bolt 6 is used for hooking with the external load-bearing tool 7, and the closed end of the U-shaped rod 5 is fixedly connected to the high-density aluminum alloy plate 1. Among them, the two high-density aluminum alloy plates 1 are all 10 mm thick, and the gap between the two high-density aluminum alloy plates 1 is 15 mm; the maximum destructive force of the high-strength shackle is 50KN, and the diameter of the U-shaped rod 5 is 18 mm. mm.

As shown in FIG. 2 , the external connecting plates include an upper triple connecting plate 8 and a lower four connecting plate 9 . When replacing the insulator strings, the utility model needs to be used in pairs, one of which passes through the bolt pin 11 with a nut in the fixing bolt hole 2 and the triple plate inserted between the two high-density aluminum alloy plates 1. 8 is fixedly connected, and the other is fixedly connected with the quadruple plate 9 inserted between the two high-density aluminum alloy plates 1 through the bolt pin 11 with a nut passing through its fixing bolt hole 2, and then the bearing The two hooks 12 of the power tool 7 are respectively hooked on the shackle bolts 6 of the two double-string insulator balance hanging point connection tools, so that the double-string insulator balance hanging point tool is at the center of the two entire strings of insulators, and the wire tension On the same straight line, it plays a role of balancing the force of the cross-arm of the tension pole tower during traction. When the load-bearing tool 7 is tightened, the string of insulators is loose, and the insulators can be removed and replaced without using too many appliances, the construction efficiency is high, and the operating utilization rate of the transmission line can be improved.

Of course, the utility model includes but is not limited to the present embodiment, as the gap between two high-density aluminum alloy plates 1 does not necessarily have to be 15 millimeters, as long as it is greater than the thickness of the plate body of the external connecting plate; other U-shaped bars The specific values such as the diameter of 5 can also be set to other specific values under the condition of satisfying the needs, and such transformations all fall within the protection scope of the present utility model.

Claims (5)

1. two insulator string balance hanging point fastening meanss is characterized in that: comprise two connecting plates that parallel up and down stack is provided with, two connecting plate one end openings and the other end link together; Two connecting plate surface correspondence positions of open end are provided with connecting hole, and connecting hole is used for being connected with external yoke plate; The connecting plate at link place is fixed with shackle, and shackle is used for and external load instrument clasp joint mutually.

2. according to claim 1 pair of insulator string balance hanging point fastening means, it is characterized in that: described connecting plate is the high density aluminium alloy plate, described connecting hole is a screw; Described shackle is the high strength shackle, this high strength shackle comprises U-shaped bar and shackle bolt, the body of rod of U-shaped bar openend both sides is provided with through hole, and the shackle bolt is located in the through hole and is used for and external load instrument clasp joint mutually, and the closing end of U-shaped bar is connected on the connecting plate.

3. according to claim 1 and 2 pair of insulator string balance hanging point fastening means, it is characterized in that: described connecting hole is a fixed bolt hole.

4. according to claim 3 pair of insulator string balance hanging point fastening means is characterized in that: the gap between two connecting plates that parallel up and down stack is provided with is greater than the plate body thickness of external yoke plate.

5. according to claim 4 pair of insulator string balance hanging point fastening means is characterized in that: the gap between all thick 10 millimeters of described two connecting plates, two connecting plates is 15 millimeters.

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