CN217469408U

CN217469408U - Device for preventing wire from deviating inwards for linear rod of railway high-voltage overhead line under extreme temperature difference

Info

Publication number: CN217469408U
Application number: CN202220886980.XU
Authority: CN
Inventors: 齐东会; 王哲; 傅琨; 尹志强; 苏学震
Original assignee: CRSC Engineering Group Co Ltd; CRSC Engineering Group Co Ltd Tianjin Branch
Current assignee: CRSC Engineering Group Co Ltd; CRSC Engineering Group Co Ltd Tianjin Branch
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-09-20
Anticipated expiration: 2032-04-18

Abstract

The utility model relates to a device for preventing the wire from deviating inwards of a railway high-voltage overhead line straight line rod under extreme temperature difference, which comprises a top phase cross arm, a side phase cross arm, a top suspender, a first side phase suspender, a top insulator connecting assembly and a side phase insulator connecting assembly, wherein the device also comprises a lower reinforcing cross arm and a hoop which are fixedly installed on an electric pole, and a reinforced angle steel is fixedly installed between the lower reinforcing cross arm and the hoop; install the fixed unit of top looks between top insulator coupling assembling and the limit looks cross arm, install the fixed unit of limit looks between limit looks insulator coupling assembling and the lower part reinforcement cross arm, the fixed unit of top looks and limit looks all include the ship type suspension clamp that connects gradually, go up right angle link plate, first socket link plate, first composite insulator, first bulb link ring, lower right angle link plate. The utility model has the advantages of being scientific and reasonable in structural design, can stabilize overhead line wire position, prevent that the wire is inclined to one side in, avoid insulator offset to lead to the not enough tripping operation that leads to of insulation distance, improve the reliability of power supply.

Description

Device for preventing wire from deviating inwards for linear rod of railway high-voltage overhead line under extreme temperature difference

Technical Field

The utility model relates to a power equipment technical field, especially a railway high pressure overhead line straight line pole prevents wire device partially in under extreme difference in temperature.

Background

The railway power through line needs to be reversed every three kilometers through a tension resistant rod, a straight rod and a tolerance, the tension resistant rod and the straight rod are used for transition due to different terrains and environments, the tension resistant rod and the straight rod and the double rods and the single rod are different in root opening, and the insulators are slightly inclined due to the change of rod shapes; and because the lowest temperature in the northwest region is about-43 degrees in winter, the highest temperature in the summer is about 40.1 degrees, the temperature difference is about 80 degrees, the power overhead line in part of sections has excessive sag in winter and is influenced by the tension of the wires, the internal inclination angle of the suspension insulator of the overhead line is large, and the insulation distance between the wires and the cross arm is insufficient to discharge, so that the fault tripping is caused. Aiming at the design of the power through line in the extreme temperature difference area, no clear standard exists in the current railway power design specification as a design basis; need combine actual engineering, research and develop a set of reinforcement device that the suitability is strong.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a railway high-voltage overhead line tangent bar prevents inclined to one side device in the wire under the extreme difference in temperature, can stabilize overhead line wire position, prevent inclined to one side in the wire, avoid insulator offset to lead to the not enough tripping operation that leads to of insulation distance, improve the power supply reliability.

The utility model provides a its technical problem realize through following technical scheme:

the utility model provides a railway high-voltage overhead line tangent bar prevents inclined to one side device in wire under extreme difference in temperature, including top looks cross arm, limit looks cross arm, top jib, first limit looks jib, top insulator coupling assembling, limit looks insulator coupling assembling, top looks cross arm and limit looks cross arm all with pole fixed mounting, adorn the top jib admittedly between top looks cross arm and the pole top, adorn first limit looks jib admittedly between limit looks cross arm and the pole top, top insulator coupling assembling installs in top looks cross arm tip, limit looks insulator coupling assembling installs in limit looks cross arm tip, its characterized in that: the electric pole is fixedly provided with a lower reinforcing cross arm and an anchor ear, and a reinforced angle steel is fixedly arranged between the lower reinforcing cross arm and the anchor ear; install the fixed unit in top looks between top insulator coupling assembling and the limit looks cross arm, install the fixed unit in limit looks between limit looks insulator coupling assembling and the lower part reinforcement cross arm, the fixed unit in top looks and the fixed unit in limit looks all include the ship type suspension clamp that connects gradually, go up right angle link plate, first socket link plate, first composite insulator, first bulb link plate and lower right angle link plate.

And a second side phase suspender is fixedly arranged between the side phase cross arm and the electric pole.

Moreover, the top phase fixing unit and the side phase fixing unit further comprise two eye pulling plates, and the two eye pulling plates are connected to the lower end of the lower right-angle hanging plate.

And, top insulator coupling assembling, limit looks insulator coupling assembling all include the second right angle link plate, second bulb link ring, second composite insulator and the second socket link plate that connect gradually.

The utility model discloses an advantage and beneficial effect do:

1. the utility model discloses a railway high-voltage overhead line tangent bar prevents wire device that inclines in under extreme difference in temperature, through rigorous atress analysis, install the fixed unit of top looks between top insulator coupling assembling and limit looks cross arm, install the fixed unit of limit looks between limit looks insulator coupling assembling and lower part reinforcement cross arm, overhead line conductor position can be stabilized, avoid composite insulator offset to lead to the not enough and tripping operation phenomenon that produces of insulating distance, improve the power supply reliability, through the inspection, tripping operation phenomenon has not taken place once in the district section after the reinforcement, the effect is showing, can be applied to overhead line and big at the relief difference, the difference in temperature is big, the reinforcement measure of various complex environmental conditions such as wind-force is big.

2. The utility model discloses a railway high-voltage overhead line tangent bar prevents wire device that inclines in under extreme difference in temperature, the fixed unit of top looks and the fixed unit of limit looks all include the ship type suspension clamp that connects gradually, go up the right angle link plate, first bowl head link plate, first composite insulator, first bulb link ring, lower right angle link plate, each parts are connected reliably, through setting up ship type suspension clamp, realize original top insulator coupling assembling, limit looks insulator coupling assembling and the fixed unit of top looks, the reliable connection of the fixed unit of limit looks, each high-voltage line is located ship type suspension clamp, realize effectively stabilizing overhead line wire's purpose, prevent that it from taking place to incline.

3. The utility model discloses a railway high pressure overhead line tangent bar prevents wire inclined to one side device under extreme difference in temperature, the fixed unit of top looks fixed unit and limit looks fixed unit still include the both eyes arm-tie, this both eyes arm-tie is connected in right angle link plate lower extreme down, through addding one or a plurality of right angle link plate, realize the fixed unit of top looks, the allowance of loosing of limit looks fixed unit, the right angle link plate will be addd during the installation in summer, make its adaptation because the tension change that composite insulator expend with heat and contract with cold and lead to during season changing, avoid temperature reduction in winter, the overhead line suspension insulator that wire tension is big and lead to is leaned in.

4. The utility model has the advantages of being scientific and reasonable in structural design, can stabilize overhead line wire position, prevent that the wire is interior partially, avoid insulator offset to lead to the not enough tripping operation that leads to of insulation distance, improve the reliability of power supply.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial enlarged view of the present invention;

fig. 3 is the utility model discloses a top insulator coupling assembling and the structural schematic of the fixed unit mutually in top.

In the figure: 1-electric pole, 2-top suspender, 3-top phase cross arm, 4-first side phase suspender, 5-top insulator connecting assembly, 6-top phase fixing unit, 7-second side phase suspender, 8-side phase cross arm, 9-side phase insulator connecting assembly, 10-side phase fixing unit, 11-lower reinforcing cross arm, 12-reinforced angle steel, 13-hoop, 14-second right angle hanging plate, 15-second ball head hanging ring, 16-second composite insulator, 17-second socket hanging plate, 18-ship type suspension clamp, 19-upper right angle hanging plate, 20-first socket hanging plate, 21-first composite insulator, 22-first ball head hanging ring and 23-lower right angle hanging plate.

Detailed Description

The present invention will be described in further detail with reference to specific examples, which are provided for illustrative purposes only, and are not intended to be limiting, and the scope of the present invention should not be limited thereby.

The utility model provides a railway high-voltage overhead line straight line pole prevents inclined to one side device in wire under extreme difference in temperature, includes top looks cross arm 3, side phase cross arm 8, top jib 2, first side phase jib 4, top insulator coupling assembling 5 and side phase insulator coupling assembling 9. Top looks cross arm 3 and the equal level fixed mounting of limit looks cross arm 8 are on pole 1, and top looks cross arm 3 is located the top of pole 1, and limit looks cross arm 8 is located the lower part of top looks cross arm 3, adorns top jib 2 admittedly between top looks cross arm 3 and the 1 top of pole, adorns first limit looks jib 4 admittedly between the one end of limit looks cross arm 8 and the 1 top of pole, still admittedly is equipped with second limit looks jib 7 between the other end of limit looks cross arm 8 and the pole 1. Top insulator coupling assembling 5 installs in top looks cross arm 3 tip, and limit looks insulator coupling assembling 9 installs in 8 tip on limit looks cross arm. The top insulator connecting assembly 5 and the side phase insulator connecting assembly 9 respectively comprise a second right-angle hanging plate 14, a second bulb hanging ring 15, a second composite insulator 16 and a second bowl-head hanging plate 17 which are connected in sequence.

The lower part reinforcing cross arm 11 and the hoop 13 are fixedly installed on the electric pole 1, the reinforced angle steel 12 is fixedly installed between the lower part reinforcing cross arm 11 and the hoop 13, the lower part reinforcing cross arm 11 is fixed on two sides of the electric pole through two channel steel pairs, the lower part is connected through bolts through the four reinforced angle steel 12, and the lower part is fixed on the electric pole through the hoop. A top phase fixing unit 6 is installed between the top insulator connecting assembly 5 and the side phase cross arm 8, and a side phase fixing unit 10 is installed between the side phase insulator connecting assembly 9 and the lower reinforcing cross arm 11.

The top phase fixing unit 6 comprises a ship-shaped suspension clamp 18, an upper right-angle hanging plate 19, a first socket head hanging plate 20, a first composite insulator 21, a first ball head hanging ring 22 and a lower right-angle hanging plate 23 which are sequentially connected. The top phase fixing unit 6 and the side phase fixing unit 10 further comprise two eye pull plates 24, and the two eye pull plates 24 are connected to the lower ends of the lower right-angle hanging plates 23. The side phase fixing unit 10 has the same structure as the top phase fixing unit 6.

The ship-shaped suspension clamp 18 of the top phase fixing unit 6 is connected with the second socket head hanging plate 17 of the top insulator connecting assembly, and the lower right-angle hanging plate 23 of the top phase fixing unit 6 is fixed with the pull rod of the side phase cross arm 8 through bolts. The ship-shaped suspension clamp of the side phase fixing unit 10 is connected with the socket head hanging plate of the side phase insulator connecting assembly, and the lower right-angle hanging plate of the side phase fixing unit 10 is connected with the pull rod fixing bolt at the end part of the lower reinforcing cross arm 11. The right-angle hanging plate is added in summer to adapt to tension change caused by expansion with heat and contraction with cold of the composite insulator during season change, temperature reduction in winter is avoided, tension of a lead is high, and the suspension insulator of the overhead line is inwards inclined.

The high-voltage overhead line is arranged on the ship-shaped suspension clamp 18 of the top phase fixing unit 6 and the side phase fixing unit 10, so that the purpose of effectively stabilizing the high-voltage overhead line is achieved, and the high-voltage overhead line is prevented from deviating inwards due to external environment changes and the like.

Although the embodiments of the present invention and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, alterations, and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and thus the scope of the invention is not limited to the embodiments and drawings disclosed.

Claims

1. The utility model provides a railway high-voltage overhead line tangent bar prevents inclined to one side device in wire under extreme difference in temperature, including top looks cross arm (3), limit looks cross arm (8), top jib (2), first limit looks jib (4), top insulator coupling assembling (5), limit looks insulator coupling assembling (9), top looks cross arm (3) and limit looks cross arm (8) all with pole (1) fixed mounting, adorn top jib (2) admittedly between top looks cross arm (3) and pole (1) top, adorn first limit looks jib (4) admittedly between limit looks cross arm (8) and pole (1) top, top insulator coupling assembling (5) are installed in top looks cross arm (3) tip, limit looks insulator coupling assembling (9) are installed in limit looks cross arm (8) tip, its characterized in that: a lower reinforcing cross arm (11) and a hoop (13) are fixedly arranged on the electric pole (1), and a reinforced angle steel (12) is fixedly arranged between the lower reinforcing cross arm (11) and the hoop (13); install between top insulator coupling assembling (5) and limit looks cross arm (8) and push up fixed unit (6) mutually, install limit looks fixed unit (10) between limit looks insulator coupling assembling (9) and lower part reinforcement cross arm (11), top looks fixed unit (6) and limit looks fixed unit (10) all include ship type suspension clamp (18), go up right angle link plate (19), first socket link plate (20), first composite insulator (21), first bulb link ring (22) that connect gradually and right angle link plate (23) down.

2. The device for preventing the inward deviation of the lead of the straight pole of the railway high-voltage overhead line under the extreme temperature difference according to claim 1, is characterized in that: and a second side phase suspender (7) is fixedly arranged between the side phase cross arm (8) and the electric pole (1).

3. The device for preventing the inward deviation of the lead of the straight pole of the railway high-voltage overhead line under the extreme temperature difference according to claim 1, is characterized in that: the top phase fixing unit (6) and the side phase fixing unit (10) further comprise two eye pulling plates (24), and the two eye pulling plates (24) are connected to the lower end of the lower right-angle hanging plate (23).

4. The device for preventing the inward deviation of the lead of the straight pole of the railway high-voltage overhead line under the extreme temperature difference according to claim 1, is characterized in that: top insulator coupling assembling (5), limit looks insulator coupling assembling (9) all include second right angle link plate (14), second bulb link ring (15), second composite insulator (16) and second socket link plate (17) that connect gradually.