CN210000171U

CN210000171U - lightning protection device for railway traction power supply device

Info

Publication number: CN210000171U
Application number: CN201920653096.XU
Authority: CN
Inventors: 王梦阳; 郭彦岭
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-01-31
Anticipated expiration: 2029-05-08

Abstract

The utility model discloses an lightning protection device for railway traction power supply unit belongs to railway lightning protection field, lightning protection device for railway traction power supply unit, including the pillar, pillar lower extreme fixedly connected with base, the equal fixedly connected with lightning rod in both ends about the pillar, pillar outer end fixedly connected with protecting sheathing, the lightning rod communicates with protecting sheathing each other, protecting sheathing outer end fixedly connected with controller, be equipped with the power in the controller, the equal fixedly connected with earth connection in both ends about the protecting sheathing inboard, the end that two earth connections are close to each other all excavates the recess, be equipped with external conductor in the recess, earth connection front end threaded connection has the anchorage bar, protecting sheathing outer end sliding connection has the electro-magnet, electro-magnet and power electric connection, the utility model discloses can concentrate the inspection to the external conductor along the railway, carry out the fixed point to the external conductor that has the problem and maintain, the work load that the staff examined external conductor to have alleviateed to .

Description

lightning protection device for railway traction power supply device

Technical Field

The utility model relates to a railway lightning protection field, more specifically say, relate to kinds of railway draw lightning protection device for power supply unit.

Background

The construction speed of the special line for passenger transport in China is accelerated, the geographical, meteorological and climatic conditions of the passing region are greatly different, the condition is complex, and if the overhead line system is not provided with a lightning conductor, the overhead line is easy to be damaged by lightning stroke. In order to ensure high reliability of the operation of the contact network, the contact network is an important component of a traction power supply system, most of the contact network is exposed in the natural environment and has no backup, and necessary atmospheric overvoltage protection measures need to be adopted. If the protective measures are lacked or improper, the insulators can be damaged, the line can be tripped, and the operation of the electrified railway is directly influenced. Meanwhile, the invasion wave overvoltage generated by lightning stroke is transmitted to a traction substation through a contact network, and the damage of internal electrical equipment can be caused to cause larger accidents. However, the performance of the lightning protection device of the existing railway power supply system is poor, the power supply of the railway can be influenced, the life safety of people can be harmed in serious conditions, and the requirements of people at present cannot be met.

CN 201820525744.9's chinese utility model patent "lightning protection device for power supply unit is drawn to railway" discloses lightning protection device for power supply unit is drawn to railway, the top of cylinder is fixed with the mount pad, the upper end of mount pad is fixed with the lightning rod, the steel wire line passes the round hole of cable mount, end and the rubber disc fixed connection of steel wire ring, the round hole sets up the intermediate position at the disc, the pole that stretches out sets up in the left side of cylinder, the bottom mounting of pole side that stretches out has cone A, the connecting rod sets up the right side at the cylinder, the height that the relative ground of connecting rod is greater than the height that the pole that stretches out relative ground, the right side of cylinder is provided with two insulating ceramic pipes, be fixed with the horizontal pole on insulating ceramic pipe's the other end, the height that the relative ground of pole stretches out is greater than insulating ceramic pipe relative ground.

In above-mentioned lightning protection device, only derive high tension current through steel wire lines, after the steel wire line is damaged by high tension current, can not play the effect of drainage again, the lightning protection equipment who makes the outer end can not play the effect of lightning protection again, and railway draw gear sets up in the field generally, especially the potential safety hazard takes place more easily in the thunderstorm weather in summer, the inspection work of current earth connection needs the staff to investigate one by one along the railway simultaneously, this work load is huge, make the staff can not be timely detect the earth connection of damage, influence lightning protection device's use.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide an kinds of lightning protection device for railway traction power supply unit, it can concentrate the inspection to the external conductor on railway border, carries out the fixed point to the external conductor who has the problem and maintains, has alleviateed the work load of staff to the external conductor inspection to degree surely.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

lightning protection device for railway traction power supply unit, which comprises a supporting column, pillar lower extreme fixedly connected with base, the equal fixedly connected with lightning rod in both ends about the pillar, pillar outer end fixedly connected with protecting sheathing, the lightning rod communicates with protecting sheathing each other, protecting sheathing outer end fixedly connected with controller, be equipped with the power in the controller, the equal fixedly connected with earth connection in both ends about the protecting sheathing inboard, two the end that the earth connection is close to each other all excavates the recess, be equipped with external conductor in the recess, earth connection front end threaded connection has the anchorage bar, protecting sheathing outer end sliding connection has the electro-magnet, electro-magnet and power electric connection, the electro-magnet is close to the end fixedly connected with fixed block of earth connection, two compression springs of fixed block outer end fixedly connected with, compression spring keeps away from end and the inner end fixed connection of protecting sheathing, the earth connection is close to end excavation has the limit shift groove of electro-magnet, the little magnetic sheet of limit shift inslot end fixedly connected with, fixedly connected with current detection appearance in the controller, current detection appearance and power electric connection, the utility model discloses external conductor of railway traction can concentrate the inspection on the way, carry out the fixed point maintenance work volume of external conductor to the external inspection personnel who has.

, the front end of the protective shell is cut by a rectangular hole, the position of the external lead is corresponding to the position of the rectangular hole, and under the action of the rectangular hole, the fastening rod can be screwed by the worker at the outer end of the protective shell to replace the damaged external lead.

, the fastening rod is close to the end of the external conductor and is fixedly connected with a plastic pad, the thickness of the plastic pad is 2-4mm, the fastening rod and the external conductor can be separated from each other under the action of the plastic pad, the external conductor and the fastening rod are insulated from each other, and the fastening rod can fix the external conductor without influencing the normal flow guide of the external conductor.

Step , end fixedly connected with antiskid rubber pad that external conductor was kept away from to the anchorage bar, the tangent groove has been dug to antiskid rubber pad outer end, under the mating reaction of antiskid rubber pad and tangent groove, has increased the friction between staff and the anchorage bar, and the staff of being convenient for is twisted the operation to the rotation of anchorage bar.

, the fixed block is made of metal conductive materials such as copper and iron, when the fixed block is contacted with the grounding wire, the power supply in the controller can be connected with the current detector to form paths, so that whether the external lead is disconnected or not can be judged through the current detector.

Step , the limit moving groove is matched with the electromagnet, when the electromagnet is contacted with the small magnetic plate, the fixing block can be driven to be contacted with the inner end wall of the limit moving groove, the contact area between the fixing block and the inner end wall of the limit moving groove is increased, and the detection precision of the current detector is improved in the range.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme is compared the mode of investigation one by one of staff to earth connection among the prior art, the utility model discloses can concentrate the inspection to the external conductor along the railway, carry out the fixed point to the external conductor of existing problem and maintain, alleviate the work load of staff to the external conductor inspection to degree surely.

(2) The protective housing front end is excavated by the rectangular hole, and the position of external wire is corresponding with the position in rectangular hole, and under the effect of rectangular hole, the staff can twist the anchorage bar in protective housing's outer end, changes the external wire of damage.

(3) The end of the fastening rod close to the external lead is fixedly connected with a plastic pad, the thickness of the plastic pad is 2-4mm, the fastening rod and the external lead can be separated from each other under the action of the plastic pad, the external lead and the fastening rod are insulated from each other, and the fastening rod can fix the external lead and does not influence the normal flow guide of the external lead.

(4) end fixedly connected with antiskid rubber pad that the external wire was kept away from to the anchorage bar, the tangent line groove has been dug to antiskid rubber pad outer end, under the mating reaction of antiskid rubber pad and tangent line groove, has increased the friction between staff and the anchorage bar, and the staff of being convenient for twists the operation to the rotation of anchorage bar.

(5) The fixing block is made of metal conductive materials such as copper and iron, when the fixing block is in contact with the grounding wire, a power supply in the controller can be connected with the current detector to form paths, and therefore whether the external lead is disconnected or not can be judged through the current detector.

(6) The limit moves groove and electro-magnet and matches each other, when electro-magnet and little magnetic sheet contacted each other, can drive fixed block and limit and move inslot end wall and contact each other, has increased the area of contact of fixed block and limit and move inslot end wall, improves the precision that current detector detected on degree of journey.

Drawings

Fig. 1 is a schematic external structural view of the present invention;

fig. 2 is a schematic view of a partial structure of the protective casing of the present invention;

fig. 3 is a schematic front sectional view of the protective casing of the present invention;

fig. 4 is a schematic top view of the protective casing of the present invention;

fig. 5 is a current guide diagram after the power supply in the controller of the present invention is turned on.

The reference numbers in the figures illustrate:

the lightning protection device comprises a support column 1, a base 2, a lightning rod 3, a protective shell 4, a rectangular hole 5, a grounding wire 6, a groove 7, an external lead 8, a fastening rod 9, a movement limiting groove 10, a controller 11, an electromagnet 12, a fixed block 13 and a compression spring 14.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments, not all embodiments, of of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like are used for the purpose of describing the present invention only and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention, because the terms "", "second", and the like are used for descriptive purposes only and are not intended to indicate or imply relative importance.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like, shall be understood to mean , such as "connected," which may be fixed, detachable, or physically connected, may be mechanically connected, may be electrically connected, may be directly connected, may be indirectly connected through an intermediate medium, and may communicate between two elements.

Example 1:

lightning protection device for railway traction power supply device, please refer to fig. 1, including pillar 1, pillar 1 lower extreme fixedly connected with base 2, pillar 1 left and right ends equal fixedly connected with lightning rod 3, under the effect of lightning rod 3 at left and right ends, carry out effectual lightning protection to railway traction power supply device, pillar 1 outer end fixedly connected with protecting sheathing 4, lightning rod 3 and protecting sheathing 4 communicate each other, under the cooperation of lightning rod 3 and protecting sheathing 4, can transmit high-voltage current to ground through protecting sheathing 4, carry out the effect of effectual water conservancy diversion to railway traction point of supply device, protecting sheathing 4 outer end fixedly connected with controller 11, be equipped with the power in the controller 11, controller 11 can control the relation of connecting of power and other electric appliances, simultaneously the staff can long-range control controller 11, the controller adopts the singlechip of STC series, controller 11 is connected with the room remote signal, the staff in the total control room carries out centralized management to controller 11 of outer end, the electric connection has signal sensor in the controller 11, the application number is that CN201720905590.1 the utility model discloses a voltage signal sensor in the utility model discloses a signal circuit of the utility model.

The fusing current is a technique known to those skilled in the art, that is, the fusing current is larger when the cross-sectional area of the lead is larger and the resistance is smaller when the length is fixed, in the present invention, when the high voltage current passes through the grounding wire 6, the external lead 8 with the smaller cross-sectional area is firstly fused, so that only the breakage of the external lead 8 needs to be detected during the detection, and when the external lead 8 is not broken, it can be determined that the breakage does not occur at other positions of the grounding wire 6.

Referring to fig. 2, the ground wires 6 are fixedly connected to the upper and lower ends of the inner side of the protective casing 4, ends of the two ground wires 6 close to each other are provided with grooves 7, external leads 8 are arranged in the grooves 7, the external leads 8 and the ground wires are fixed in a contact manner through fastening rods 9, under the action of the grooves 7, when workers need to replace the external leads 8, the workers take out the broken external leads 8, the intact external leads 8 are put into the grooves 7, the external leads 8 and the ground wires 6 are fixed to each other, the front end of the protective casing 4 is provided with a rectangular hole 5, the position of the external leads 8 corresponds to the position of the rectangular hole 5, and under the action of the rectangular hole 5, the workers can screw the fastening rods 9 at the outer end of the protective casing 4 to replace the damaged external leads 8.

Please refer to fig. 3, the front end of the grounding wire 6 is connected with a fastening rod 9 by a thread, the fastening rod 9 is close to end fixed connection of the external wire 8 and is connected with a plastic pad, the thickness of the plastic pad is 3.5mm, the fastening rod 9 and the external wire 8 can be separated from each other under the action of the plastic pad, and the external wire 8 and the fastening rod 9 are insulated from each other, so that the fastening rod 9 can fix the external wire 8 without affecting the normal flow guiding of the external wire 8, the fastening rod 9 is far away from the end fixed connection of the external wire 8 and is connected with an anti-skid rubber pad, the outer end of the anti-skid rubber pad is provided with a linear groove, under the matching action of the anti-skid rubber pad and the linear groove, the friction between the worker and the fastening rod 9 is increased, and the worker.

Referring to fig. 4, an electromagnet 12 is slidably connected to an outer end of the protective housing 4, the electromagnet 12 is electrically connected to a power source, when the controller 11 controls an internal power source to be connected to the electromagnet 12, the electromagnet 12 can have -specified magnetism under the action of current, and the controller 11 can control the magnetism of the electromagnet 12 by controlling the electrical connection relationship between the internal power source and the electromagnet 12, the front and rear ends of the electromagnet 12 are fixedly connected to fixing blocks 13, the fixing blocks 13 are electrically connected, the fixing blocks 13 are made of a metal conductive material, such as copper or iron, referring to fig. 5, when the fixing blocks 13 are in contact with the ground wire 6, the power source in the controller 11 can be connected to the ground wire 6, the external lead 8 and a current detector, so as to form paths, and thus whether the external lead 8 is disconnected or not can be judged through the current detector.

Referring to fig. 4, the outer ends of two fixed blocks 13 are fixedly connected with a compression spring 14, the end of the compression spring 14 far from the fixed block 13 is fixedly connected with the inner end wall of the protective housing 4, the end of the grounding wire 6 close to the electromagnet 12 is provided with a limited movement groove 10, the inner end wall of the limited movement groove 10 is fixedly connected with a small magnetic plate, under the elastic force action of the compression spring 14, after the electromagnet 12 loses magnetic force, the fixed block 13 and the grounding wire 6 can be separated from each other, after the electromagnet 12 is connected with a power supply, the electromagnet 12 has magnetic force, under the magnetic attraction action between the electromagnet 12 and the small magnetic plate, the elastic force action of the compression spring 14 can be overcome, the fixed block 13 and the grounding wire 6 are connected with each other, so that the grounding wire 6 and the power supply are connected with each other, the limited movement groove 10 and the electromagnet 12 are matched with each other, when the electromagnet 12 and the small magnetic plate are in contact with each other, the fixed block 13 and the end wall of the limited movement groove 10 can be driven to be in contact with each other, the fixed block 13 and the grounding wire 6, the current detector can be connected with the current detector of the utility model CN 36, and the current detector can be connected with the current detector of the utility model of the lightning protection device, and the utility model of the utility model which can be used for detecting whether the current detector for detecting the current control.

When workers need to check the grounding wire 6 and the external lead 8 in the protective shell 4, please refer to fig. 4, firstly, the workers in the master control room remotely open the controller 11, the electromagnet 12 in the controller 11 is connected with the power supply, the electromagnet 12 has fixed magnetism under the action of current, under the coordination action between the electromagnet 12 with magnetism and the small magnetic plate in the limiting groove 10, the fixed block 13 overcomes the elastic action of the compression spring 14 and is contacted with the end wall in the limiting groove 10, please refer to fig. 5, when the external lead 8 is in a good state, the power supply and the current detector in the controller form passages, when the external lead 8 is broken, the power supply and the current detector in the controller cannot form passages, at this time, the current detector cannot detect current signals, the signal sensor in the controller transmits the current signals generated by the current detector to the master control room, the workers in the master control room can judge the damage of the external lead 8 according to the acquired signals, the detection of the external lead 8 is finished, the detection of the external lead 8, the workers can control the damage of the external lead 13 in the remote control mode that the external lead 6 and the external lead 13 are separated one by the high-pressure, the high-point control of the remote control of the external lead, the remote control work of the external lead 13, the high-point control work of the remote control work of the external lead 13, the high-point control device can be reduced.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

The utility model provides a lightning protection device for railway traction power supply unit, including pillar (1), pillar (1) lower extreme fixedly connected with base (2), equal fixedly connected with lightning rod (3) in both ends about pillar (1), pillar (1) outer end fixedly connected with protecting sheathing (4), lightning rod (3) and protecting sheathing (4) communicate each other, protecting sheathing (4) outer end fixedly connected with controller (11), be equipped with the power in controller (11), its characterized in that, the equal fixedly connected with earth connection (6) in both ends about protecting sheathing (4) inboard, two the end that earth connection (6) are close to each other all cuts a groove (7), be equipped with external conductor (8) in groove (7), earth connection (6) front end threaded connection has fastening rod (9), protecting sheathing (4) outer end sliding connection has electro-magnet (12), electro-magnet (12) and power electric connection, electro-magnet (12) are close to that earth connection has fixed block (13) 6), fixed block (13) outer end fixedly connected with compression spring (14), compression spring (14) compression spring moves electric current detection appearance (539) and move electric detector (10) fixed connection limit electric current detection appearance (36) and power connection electricity detection appearance (11) fixed connection.
2. lightning protection device for railway traction power supply according to claim 1, wherein the front end of the protective housing (4) is cut with a rectangular hole (5), and the position of the external lead (8) corresponds to the position of the rectangular hole (5).
3. The lightning protection device for railway traction power supply unit according to claim 1, wherein a plastic pad is fixedly attached to the fastening rod (9) near end of the external lead (8), and the thickness of the plastic pad is 2-4 mm.
4. The lightning protection device for railway traction power supply unit according to claim 1 or 3, wherein the end of the fastening rod (9) away from the external lead (8) is fixedly connected with an anti-skid rubber pad, and the outer end of the anti-skid rubber pad is provided with a straight groove.
5. The lightning protection device for the railway traction power supply device as claimed in claim 1, wherein the fixing block (13) is made of a metal conductive material.
6. lightning protection device for railway traction power supply according to claim 1, wherein the limiting slot (10) is matched with the electromagnet (12).