CN204651778U - A kind of servicing unit changing electric transmission line isolator - Google Patents

Abstract

An auxiliary device for replacing an insulator of a transmission line, which includes a resistance bar, a base, a first fixing bolt, a second fixing bolt, a first fixture and a second fixture, one end of the resistance bar is fixed on the base, and four of the base The corners are respectively provided with through holes, the first fixing bolts are arranged in the two through holes on the left side of the base, the second fixing bolts are arranged in the two through holes on the right side of the base, and the head of the first fixing bolt and the second bolt The head of the head and the resistance bar are located on the same side of the base, the end of the first fixing bolt away from the base is provided with a first nut, the first clamp is set on the first fixing bolt inside the first nut, and the second fixing bolt is far away from the base One end of the second nut is provided with a second nut, and the second clip is sleeved on the second fixing bolt inside the second nut. The utility model greatly reduces the number of workers required to replace the insulators of each base tower, greatly liberates the labor force, reduces the operating cost, and reduces the required power outage time.

Description

An auxiliary device for replacing insulators of transmission lines

technical field

The utility model relates to an auxiliary device for operation and maintenance of transmission lines, in particular to an auxiliary device for replacing insulators of transmission lines, which belongs to the technical field of operation and maintenance of overhead transmission lines.

Background technique

At present, in the work of replacing high-voltage transmission line insulators, the lifting pulley is usually fixed on the iron tower, and the insulator is lifted by manpower pulling the rope. This traditional method of transmission line insulators has the following defects:

1. Due to the high work intensity of replacing the porcelain insulators of transmission lines, 5-8 people are often required to pull the rope, which not only consumes a lot of manpower, but also has low work efficiency, which eventually leads to long power outages.

2. Manually directly controlling the traction rope often stretches and relaxes, it is difficult to ensure its stability, and it is very likely to cause the tension string to shake, causing the porcelain insulators to collide with each other and damage the insulators.

3. Manual control of the traction rope cannot guarantee its stability, and it is very likely to cause sudden slack, which will cause impact on the anchor line fixture, especially when the long-running line has a thick oxide layer on the surface, which is very likely to cause line running. This will have serious consequences.

4. If a pulley is installed on the tower angle steel as an auxiliary tool, the steel wire rope will wear the galvanized layer of the tower material, and the horizontal iron and support iron may be deformed due to excessive force, which is not conducive to the safe operation of the tower structure.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides an auxiliary device for replacing insulators of transmission lines, which can greatly reduce manpower and material resources, improve work efficiency, and shorten power failure operation time.

The technical solution adopted by the utility model to solve the technical problem is: an auxiliary device for replacing the insulator of the transmission line, which is used to assist the replacement of the insulator on the angle steel at the bottom of the iron tower, and is characterized in that it includes a resistance bar, a base, a first Fixing bolts, second fixing bolts, first fixture and second fixture, one end of the resistance bar is fixed on the base, four corners of the base are respectively provided with through holes, and the first fixing bolts are set In the two through holes on the left side of the base, the second fixing bolts are arranged in the two through holes on the right side of the base, and the head of the first fixing bolt and the head of the second bolt and the resistance bar are located at the base On the same side, the end of the first fixing bolt away from the base is provided with a first nut, the first clamp is sleeved on the first fixing bolt inside the first nut, and the end of the second fixing bolt away from the base is arranged There is a second nut, and the second fixture is sleeved on the second fixing bolt inside the second nut;

During use, the base is provided with the opposite surface of the resistance bar attached to the angle steel, the screw rod of the first fixing bolt extends through the through hole of the base to the far end of the angle steel surface of the angle steel vertical base, and the first clamp is stuck on the angle steel vertical The angle steel surface of the base is sleeved on the screw rod of the first fixing bolt, and the first nut is fastened on the screw rod of the first fixing bolt outside the first clamp; the screw rod of the second fixing bolt extends through the through hole of the base to the angle steel surface of the angle steel parallel base, the second fixture is clamped on the other side of the angle steel surface of the angle steel parallel base and is sleeved on the screw rod of the second fixing bolt, and the second nut is fastened on the outside of the second fixture for the second fixing In this way, the auxiliary device is fixed on the angle steel at the bottom of the iron tower to wind the traction rope for hoisting the insulator on the resistance bar, and the resistance bar is used as the slipping tool of the traction rope to assist the insulator replacement work.

Preferably, the two through holes on the left side of the base are elongated through holes parallel to each other, and the first fixing bolt and the second fixing bolt are adjusted by adjusting the position of the first fixing bolt in the left elongated through hole. Fix the distance between the bolts in order to fix the auxiliary device on iron towers made of angle steel of different specifications.

Preferably, the two through holes on the right side of the base are elongated through holes running left and right and parallel to each other, and the first fixing bolt and the second fixing bolt can be adjusted by adjusting the position of the second fixing bolt in the right elongated through hole. Fix the distance between the bolts in order to fix the auxiliary device on iron towers made of angle steel of different specifications.

Preferably, the two elongated through holes on the left side of the base and the two elongated through holes on the right are elongated through holes running left and right and parallel to each other. By adjusting the first fixing bolt in the left elongated through hole and/or adjust the position of the second fixing bolt in the right elongated through hole to adjust the distance between the first fixing bolt and the second fixing bolt, so as to fix the auxiliary device on the iron tower made of angle steel of different specifications superior.

Preferably, the resistance bar is a cylindrical structure with protrusions on both sides of the central depression, so as to prevent the traction rope of the hoisting insulator from falling off when it is slid.

Preferably, a first washer is provided between the first nut and the first clip, and a second washer is provided between the second nut and the second clip to increase the fastness of the nut so that the The auxiliary device is fixed on the angle steel at the bottom of the tower.

The beneficial effects of the utility model are: the utility model is arranged on the angle steel at the bottom of the iron tower to assist the insulator replacement work, and the resistance bar is used as the sliding tool for the traction rope, which saves a lot of manpower and improves the stability; the clamp is used for fixing, not only It is convenient to disassemble and assemble the auxiliary device, and it can more firmly fix the base on the angle steel; through the use of long strip-shaped through holes, the distance between the fixing bolts can be adjusted, which is suitable for angle steel with different limb widths and different thicknesses, so that The auxiliary device is fixed on iron towers made of angle steels of different specifications. Utilizing the utility model to replace auxiliary insulators greatly reduces the number of operators required for each base tower. Under the condition that the number of operators remains unchanged, multiple base towers can be replaced at the same time, which greatly liberates the labor force, reduces operating costs, and reduces required power outage time.

Description of drawings

Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

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

Fig. 2 is the structural representation of the base described in the utility model;

Fig. 3 is a schematic structural view of the first fixing bolt when the auxiliary device is fixed on the angle steel;

Fig. 4 is the structural representation of the second fixing bolt when the auxiliary device is fixed on the angle steel;

Fig. 5 is a schematic diagram of the use state of the utility model;

Among the figure, 1 resistance bar, 2 base, 21 first through hole, 22 second through hole, 23 third through hole, 24 fourth through hole, 3 first fixing bolt, 31 screw rod of the first fixing bolt, 32 second through hole 1 head of fixing bolt, 33 first nut, 34 first washer, 4 second fixing bolt, screw rod of 41 second fixing bolt, 42 second fixing bolt head, 43 second nut, 44 second washer, 5th 1 fixture, 6 second fixture, 7 angle steel at the bottom of the iron tower, 8 traction rope, 9 hoisting pulley, 10 insulator.

Detailed ways

The following disclosure provides many different embodiments or examples for realizing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in different instances. This repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. The present invention omits descriptions of known components and processing techniques and processes to avoid unnecessarily limiting the present invention.

Example 1

As shown in Figure 1 and Figure 5, an auxiliary device for replacing insulators of transmission lines according to the utility model is used to assist the replacement of insulators on the angle steel at the bottom of the iron tower. It includes a resistance bar 1, a base 2, and a first fixing bolt 3. The second fixing bolt 4, the first fixture 5 and the second fixture 6, one end of the resistance bar 1 is fixed on the base 2, and the four corners of the base 2 are respectively provided with first through holes 21 , the second through hole 22, the third through hole 23 and the fourth through hole 24, a first fixing bolt 3 is respectively arranged in the first through hole 21 and the second through hole 22 on the left side of the base, A second fixing bolt 4 is arranged in the two through holes of the third through hole 23 and the fourth through hole 24 on the right, respectively, and the first fixing bolt head 32 and the second bolt head 42 and the resistance bar 1 are located at the base 2, the end of the first fixing bolt 3 away from the base is provided with a first nut 33, the first clamp 5 is sleeved on the first fixing bolt inside the first nut, and the second fixing bolt 4. A second nut 43 is provided at the end away from the base, and the second clip 6 is sleeved on the second fixing bolt inside the second nut. The first through hole 21 and the second through hole 22 on the left side of the base are set as elongated through holes running left and right and parallel to each other. By adjusting the first fixing bolt 3 in the first through hole 21 and The position in the second through hole 22 is used to adjust the distance between the first fixing bolt and the second fixing bolt, so that the auxiliary device is fixed on the iron tower made of angle steel of different specifications. The resistance bar 1 is a cylindrical structure with protrusions on both sides of the middle depression, which prevents the hoisting insulator traction rope from falling off when slipping.

When performing an insulator replacement operation, the auxiliary device is first fixed on the iron tower, and the fixing process is as follows: the opposite surface of the base 2 provided with a resistance bar is attached to the angle steel 7, and the screw rod 31 of the first fixing bolt passes through the base The through hole extends to the far end of the angle steel surface of the angle steel vertical base, the first clamp 5 is stuck on the angle steel surface of the angle steel vertical base and is sleeved on the screw rod 31 of the first fixing bolt, and the first nut 33 is fastened on the first clamp The screw rod 41 of the second fixing bolt extends to the angle steel surface of the angle steel parallel base through the base through hole so that the first fixture tightly blocks the angle steel surface of the vertical base of the angle steel on the screw rod of the first fixing bolt of the tool outside. Fixture 6 is stuck on the other side of the angle steel surface of the angle steel parallel base and is sleeved on the screw rod of the second fixing bolt, and the second nut 43 is fastened on the screw rod of the second fixing bolt outside the second clamp to make the second clamp Tool tightly clamps the angle steel surface of the angle steel parallel base, so that the auxiliary device is fixed on the angle steel 7 at the bottom of the iron tower. Then the traction rope 8 of the hoisting insulator is passed through the hoisting pulley 9 and wound on the resistance bar 1 . Finally, the operator grabs the end of the traction rope 8 and uses the resistance bar as a tool for slipping and dropping the traction rope to assist the replacement work of the insulator 10 .

Example 2

As shown in Figures 1 and 5, the difference from Example 1 is that the two through holes on the right side of the base are set as elongated through holes running left and right and parallel to each other. The position in the strip-shaped through hole is used to adjust the distance between the first fixing bolt and the second fixing bolt, so that the auxiliary device can be fixed on iron towers made of angle steels of different specifications.

Example 3

As shown in Figure 1, Figure 2 and Figure 5, different from Embodiment 1 and Embodiment 2, the two elongated through-holes on the left side of the base and the two through-holes on the right side are provided with left-right direction And the elongated through holes parallel to each other, adjust the first fixing bolt by adjusting the position of the first fixing bolt in the left elongated through hole and/or adjusting the position of the second fixing bolt in the right elongated through hole The distance between it and the second fixing bolt, so that the auxiliary device can be fixed on the iron tower made of angle steel of different specifications.

As shown in Figure 3 and Figure 4, in the above embodiment, preferably, a first washer 34 is provided between the first nut 33 and the first fixture 5, and a first washer 34 is provided between the second nut 43 and the second fixture 6. A second washer 44 is arranged between them, so that the auxiliary device can be better fixed on the angle steel at the bottom of the iron tower.

In the above embodiment, the first fixture can be two first fixtures, each first fixture is provided with a through hole, and the two first fixtures are respectively sleeved on the two first bolts through the through holes. Above; the first fixture can also adopt a first fixture, the first fixture is provided with two through holes with the same spacing as the first through hole 21 and the second through hole 22, the first fixture utilizes two through holes Holes are set on the two first bolts. Similarly, in the above embodiment, the second fixture may also use two second fixtures or one second fixture.

The utility model is set on the angle steel at the bottom of the iron tower to assist in the replacement of insulators, and the resistance bar is used as a slipping tool for pulling the rope, which saves a lot of manpower and improves stability; the use of clamps for fixing not only facilitates the disassembly and assembly of the auxiliary device, And it can fix the base on the angle steel more firmly; through the use of long through holes, the distance between the fixing bolts can be adjusted, which is suitable for angle steels with different limb widths and different thicknesses, so that the auxiliary device can be fixed on different angle steels. On the iron tower made of standard angle steel. Utilizing the utility model to replace auxiliary insulators greatly reduces the number of operators required for each base tower. Under the condition that the number of operators remains unchanged, multiple base towers can be replaced at the same time, which greatly liberates the labor force, reduces operating costs, and reduces required power outage time.

The above is only a preferred embodiment of the utility model, and for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, and these improvements and modifications are also regarded as It is the protection scope of the utility model.

Claims (6)

1. change the servicing unit of electric transmission line isolator for one kind, more change jobs for being arranged on supplementary insulation on the angle steel bottom steel tower, it is characterized in that: comprise resistance thick stick, base, first set bolt, second set bolt, first jig and the second jig, one end of described resistance thick stick is fixed on base, four angles of described base are respectively arranged with through hole, described first set bolt is arranged in two through holes on the base left side, described second set bolt is arranged in two through holes on the right of base, and the head of described first set bolt and the head of the second bolt and resistance thick stick are positioned at the same side of base, described first set bolt is provided with the first nut away from one end of base, described first jig is set on the first set bolt inside the first nut, described second set bolt is provided with the second nut away from one end of base, described second jig is set on the second set bolt inside the second nut.

2. a kind of servicing unit changing electric transmission line isolator according to claim 1, is characterized in that: two through holes on the described base left side are left and right trend and the strip through hole be parallel to each other.

3. a kind of servicing unit changing electric transmission line isolator according to claim 1, is characterized in that: two through holes on the right of described base are left and right trend and the strip through hole be parallel to each other.

4. a kind of servicing unit changing electric transmission line isolator according to claim 1, is characterized in that: two strip through holes on the described base left side and two through holes on the right are left and right trend and the strip through hole be parallel to each other.

5. a kind of servicing unit changing electric transmission line isolator according to claim 1, is characterized in that: described resistance thick stick is the cylindrical structure of intermediate recess both sides projection.

6. a kind of servicing unit changing electric transmission line isolator according to any one of claim 1 to 5, is characterized in that: between the first nut and the first jig, be provided with the first packing ring, is provided with the second packing ring between the second nut and the second jig.