CN203787855U - Power transmission line linear charged wire lifting device - Google Patents

Abstract

Provided is a power transmission line linear charged wire lifting device, characterized in that the power transmission line linear charged wire lifting device comprises a lead screw, a hanging point fixture, an insulating suspender, and lifting hooks. The hanging point fixture is fixedly connected with a lead screw nut on the lead screw. The lower end of the lead screw is connected with the upper end of the insulating suspender. The lower end of the insulating suspender is connected with the lifting hooks. The device is advantaged in that the power transmission line linear charged wire lifting device is simple in principle structure, prevents manual wire lifting operation, reduces manual labor intensity, and increases operation security. The device provides convenience for charged maintenance for power transmission equipment, and improves efficiency.

Description

A straight-line electrified wire lifting device for transmission lines

technical field

The utility model relates to live working equipment of an electric power system, in particular to a straight line electrified wire lifting device for a power transmission line.

Background technique

220 kV straight line live insulator replacement is a basic operation item in live work. In the past, the commonly used method was to replace the insulator string with the insulation block method. Since the past 220 kV lines were mostly single-wire lines, and the wire type was LGJ-185 And LGJ-240 single wire mostly. Calculated on the basis of the vertical span of 350 meters for the wires of the above type, when 3-3 insulated blocks are used, the lifting force is equivalent to a weight of 42-57 kg, and it is relatively easy to lift the wires by manpower.

However, with the requirements of the social economy on the reliability of power supply, new lines and old lines have been rebuilt, making the existing 220 kV line wire type increase, that is, the original LGJ-185 and LGJ-240 type wires are changed to For LGJ-300 and LGJ-400 conductors, the number of subconductors has increased, that is, the original single conductor has been changed to multiple conductors, and some lines have adopted the LGJ-300 multiple conductor structure. Based on the type and structure of the above-mentioned conductors, the vertical span of 350 meters is also used for calculation, and when 3-3 insulated blocks are used, the lifting force increases to a weight of 66-133 kg, and it becomes more and more difficult to lift the conductors by manpower. It also increases the danger of the operation. Therefore, the pulley block method used to lift the wires in the traditional live replacement of insulators is no longer suitable for the development requirements of the current 220 kV power transmission equipment live maintenance work.

Utility model content

The purpose of the utility model is to improve the maintenance ability of the 220 kV transmission line live work, so that the existing 220 kV linear insulator string replacement work can be applied, and a straight line live line lifting device for the transmission line is specially provided.

The utility model provides a straight-line electrified wire lifting device for a transmission line, which is characterized in that: the straight-line electrified wire lifting device for a power transmission line includes a lead screw 1, a hanging point fixture 2, an insulating suspension rod 3, and a hook 4;

The hanging point fixture 2 is fixedly connected with the screw nut on the lead screw 1, the lower end of the lead screw 1 is connected with the upper end of the insulating suspender 3, and the lower end of the insulating suspender 3 is connected with the suspension hook 4;

The screw 1 is a tool for lifting the wire; the insulating suspender 3 is an important connection bearing part for lifting the wire in live work; the hanging point clamp 2 has a rectangular slot for clamping on the cross-arm of the pole tower, and the rectangular slot opens to Down.

The hanging point fixture 2 has a rectangular slot for clamping the cross arm of the pole tower, and the opening is downward.

The number of said hooks 4 is 1-3.

The insulating suspender 3 is a hard material part.

The said screw 1 is a ball screw.

When in use, use the hanging point fixture 2 to fix the lead screw 1 and the insulating suspender 3 on the cross arm of the pole tower, the hook 4 under the suspender hooks the wire, and then tighten the lead screw 1 to transfer the weight of the wire borne by the insulator string to this Lifting device to loosen and replace insulator strings.

Advantage of the utility model:

The straight line electrified wire lifting device for transmission lines described in the utility model has a simple principle and structure, avoids manpower lifting of wires, reduces human labor intensity, and at the same time increases the safety of operations, facilitates live maintenance of power transmission equipment, and improves efficiency.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

Fig. 1 is a structural schematic diagram of a straight-line electrified wire lifting device for a transmission line;

Figure 2 is a schematic diagram of the structure of the lead screw;

Fig. 3 is the structural schematic diagram of hanging point jig;

Fig. 4 is a structural schematic diagram of an insulating suspender;

Figure 5 is a schematic diagram of the hook structure.

Detailed ways

Example 1

The utility model provides a straight line electrified wire lifting device for a transmission line, which is characterized in that: the straight line electrified wire lifting device for a power transmission line includes a lead screw 1, a hanging point clamp 2, an insulating suspender 3, and a hook 4;

The hanging point fixture 2 is fixedly connected with the screw nut on the lead screw 1, the lower end of the lead screw 1 is connected with the upper end of the insulating suspender 3, and the lower end of the insulating suspender 3 is connected with the suspension hook 4;

The screw 1 is a tool for lifting the wire; the insulating suspender 3 is an important connection bearing part for lifting the wire in live work; the hanging point clamp 2 has a rectangular slot for clamping on the cross-arm of the pole tower, and the rectangular slot opens to Down.

The hanging point fixture 2 has a rectangular slot for clamping the cross arm of the pole tower, and the opening is downward.

The number of the said suspension hook 4 is 1.

The insulating suspender 3 is a hard material part.

The said screw 1 is a ball screw.

When in use, use the hanging point fixture 2 to fix the lead screw 1 and the insulating suspender 3 on the cross arm of the pole tower, the hook 4 under the suspender hooks the wire, and then tighten the lead screw 1 to transfer the weight of the wire borne by the insulator string to this Lifting device to loosen and replace insulator strings.

Example 2

This embodiment provides a straight-line electrified wire-lifting device for a power transmission line, which is characterized in that: the straight-line electrified wire-lifting device for a power transmission line includes a lead screw 1, a hanging point clamp 2, an insulating suspender 3, and a hook 4;

The hanging point fixture 2 is fixedly connected with the screw nut on the lead screw 1, the lower end of the lead screw 1 is connected with the upper end of the insulating suspender 3, and the lower end of the insulating suspender 3 is connected with the suspension hook 4;

The screw 1 is a tool for lifting the wire; the insulating suspender 3 is an important connection bearing part for lifting the wire in live work; the hanging point clamp 2 has a rectangular slot for clamping on the cross-arm of the pole tower, and the rectangular slot opens to Down.

The hanging point fixture 2 has a rectangular slot for clamping the cross arm of the pole tower, and the opening is downward.

The number of said suspension hooks 4 is 2, which are connected in series.

The insulating suspender 3 is a hard material part.

The said screw 1 is a ball screw.

When in use, use the hanging point fixture 2 to fix the lead screw 1 and the insulating suspender 3 on the cross arm of the pole tower, the hook 4 under the suspender hooks the wire, and then tighten the lead screw 1 to transfer the weight of the wire borne by the insulator string to this Lifting device to loosen and replace insulator strings.

Example 3

This embodiment provides a straight-line electrified wire-lifting device for a power transmission line, which is characterized in that: the straight-line electrified wire-lifting device for a power transmission line includes a lead screw 1, a hanging point clamp 2, an insulating suspender 3, and a hook 4;

The hanging point fixture 2 is fixedly connected with the screw nut on the lead screw 1, the lower end of the lead screw 1 is connected with the upper end of the insulating suspender 3, and the lower end of the insulating suspender 3 is connected with the suspension hook 4;

The screw 1 is a tool for lifting the wire; the insulating suspender 3 is an important connection bearing part for lifting the wire in live work; the hanging point clamp 2 has a rectangular slot for clamping on the cross-arm of the pole tower, and the rectangular slot opens to Down.

The hanging point fixture 2 has a rectangular slot for clamping the cross arm of the pole tower, and the opening is downward.

The number of said suspension hooks 4 is 3, connected in series.

The insulating suspender 3 is a hard material part.

The said screw 1 is a ball screw.

When in use, use the hanging point fixture 2 to fix the lead screw 1 and the insulating suspender 3 on the cross arm of the pole tower, the hook 4 under the suspender hooks the wire, and then tighten the lead screw 1 to transfer the weight of the wire borne by the insulator string to this Lifting device to loosen and replace insulator strings.

Claims (5)

1. A straight line electrified wire lifting device for a transmission line, characterized in that: the straight line electrified wire lifting device for a power transmission line includes a lead screw (1), a hanging point clamp (2), an insulating suspender (3), a suspension hook(4); The hanging point fixture (2) is fixedly connected with the lead screw nut on the lead screw (1), the lower end of the lead screw (1) is connected with the upper end of the insulating suspender (3), and the lower end of the insulating suspender (3) is connected with the hook (4) CONNECTION. 2. The straight-line electrified wire lifting device for transmission lines according to claim 1, characterized in that: the hanging point fixture (2) has a rectangular slot for clamping on the cross-arm of the pole tower, and the opening of the rectangular slot faces Down. 3. The straight-line electrified wire lifting device for power transmission lines according to claim 1, characterized in that: the number of said hooks (4) is 1-3. 4. The straight-line electrified wire lifting device for transmission lines according to claim 1, characterized in that: the insulating suspender (3) is made of hard material. 5. The straight-line charged wire lifting device for power transmission lines according to claim 1, characterized in that: the screw (1) is a ball screw.