CN207834192U - A kind of electric locomotive earthing switch pole - Google Patents
A kind of electric locomotive earthing switch pole Download PDFInfo
- Publication number
- CN207834192U CN207834192U CN201820019895.7U CN201820019895U CN207834192U CN 207834192 U CN207834192 U CN 207834192U CN 201820019895 U CN201820019895 U CN 201820019895U CN 207834192 U CN207834192 U CN 207834192U
- Authority
- CN
- China
- Prior art keywords
- switch pole
- earthing switch
- electric locomotive
- vacuum interrupter
- insulating layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 17
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 14
- 230000003068 static effect Effects 0.000 claims abstract description 14
- 239000003822 epoxy resin Substances 0.000 claims abstract description 6
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000003085 diluting agent Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 claims 6
- 239000002344 surface layer Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000005684 electric field Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model is related to high voltage electric equipment manufacturing technology fields, especially it is used for a kind of electric locomotive earthing switch pole, including set interface tube, pull rod interface, vacuum interrupter, ground terminal, set interface tube is located at earthing switch pole rear portion, pull rod interface is located at ground connection pole front, has vacuum interrupter in earthing switch pole；It is insulating layer that, which there are semi-conductive layer, centre in disconnecting switch pole outer surface,；There are pressure sensor, vacuum interrupter to have static side shielding case on movable end of vacuum arc extinguishing chamber metal shell.Insulating layer is epoxy resin or ethylene propylene diene monomer (EPDM) material.The utility model advantageous effect is：It is small, it is simple in structure, it is easy for installation, it safeguards simple.
Description
Technical field
The utility model is related to high voltage electric equipment manufacturing technology fields, and the earthing switch for being especially used for railway locomotive is set
It is standby.
Background technology
With the sustainable development of China's economic, important means that railway transportation is transported in Chinese transportation plays more and more long-pending
The effect of pole, and in following a period of time, Chinese railway construction will enter golden period, as the controller switching equipment of electric railway,
Also with the arrival on railway construction peak, the increasingly vigorous situation of the market demand is faced.Prior art links are cumbersome for installation,
Security risk is larger, and after equipment is outdoor, corrosion, aging and the problems such as easily being destroyed by external force are difficult to solve, exposed energized conductor therefore
Barrier and security risk are more, the safety of distribution transformer operation, poor reliability, meanwhile, operation maintenance management is inconvenient, O＆M work
The difficulty of work is high with complexity, and what is repaired need to be handled major loop ground, ensures maintenance personal's life security.
Invention content
In order to solve above-mentioned technological deficiency of the existing technology, the purpose of this utility model is to provide earthing switch poles
Column, for solve existing railway locomotive system high-voltage switch equipment live end it is exposed, it is affected by environment it is big, area occupied is big etc.
Disadvantage realizes safety and the feature of environmental protection of locomotive product using all insulation, hermetically sealed structure type.
To achieve the goals above, the technical solution of the utility model is：A kind of electric locomotive earthing switch pole, packet
Set interface tube, pull rod interface, vacuum interrupter, ground terminal are included, set interface tube is located at earthing switch pole rear portion, pull rod interface
Positioned at ground connection pole front, there is vacuum interrupter in earthing switch pole；There is semi-conductive layer in earthing switch pole outer surface, intermediate
It is insulating layer；There are pressure sensor, vacuum interrupter to have static side shielding case on movable end of vacuum arc extinguishing chamber metal shell.
Insulating layer is epoxy resin or ethylene propylene diene monomer (EPDM) material, is given birth to by the technique of vacuum pouring or pressure injection
Production.Semi-conductive layer is filler material with powdered graphite using epoxy resin as base-material, and diluent is added and is sprayed on insulation after mixing
Part outer surface is cured, and may make Nian Jie secured between insulating part and conduct piece, wearability height, partial discharge small.EPDM material
Material is high strength and high hardness rubber, repeats recycling and uses, belongs to environment-friendly materials.Semi-conductive layer, effect are by electrostatic or band
The electric field that electric body generates is directly grounded, and surface is the equal of the earth, and isolation electrostatic is to the influence inside pole.
Earthing switch vacuum interrupter static side shielding case designs for circular ring shape, keeps covered region field distribution uniform.
Its corner need to carry out rounded corner smooth treatment, avoid edge sealing and the new point discharge of burr formation.
Set interface tube is internal cone type structure, inside there is uniform ring.Grading ring is connect with vacuum interrupter static side.Grading ring can be with
It is made of stainless (steel) wire or conductive ethylene propylene diene rubber.Grading ring main function is the uniform electric field with cannula connection.Static side
Copper tip is used for connecting sleeve and vacuum interrupter static side.
Ground terminal is located above the movable end of vacuum arc extinguishing chamber of earthing switch pole, is connect with moved end by being flexible coupling.It connects
Ground terminal is connected with semi-conductive layer, realizes the bonding on earthing switch pole surface.
As the above scheme is adopted, the utility model has the advantages that compared with prior art：It is small, knot
Structure is simple, easy for installation, safeguards simply, of less demanding to operating personnel.
Description of the drawings
Fig. 1 is earthing switch pole schematic diagram；
Fig. 2 is earthing switch pole sectional view.
Drawing reference numeral explanation：1, earthing switch pole, 2, set interface tube, 3, pull rod interface, 4, static side shielding case, 5, vacuum
Arc-chutes, 5.1, pressure sensor, 6, moved end, 7, be flexible coupling, 8, ground terminal, 9, insulating layer, 10, semi-conductive layer, 11, press
Ring, 12, static side copper tip.
Specific implementation mode
The utility model is described in further detail below in conjunction with the utility model specific attached drawing embodiment：
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of electric locomotive earthing switch pole, including set interface tube 2, pull rod interface 3, vacuum
Arc-chutes 5, ground terminal 8, set interface tube 2 is located at 1 rear portion of earthing switch pole, before pull rod interface 3 is located at earthing switch pole 1
There is vacuum interrupter 5 in portion in earthing switch pole 1；It is characterized in that：There is semi-conductive layer 10 in 1 outer surface of earthing switch pole, in
Between be insulating layer 9；There are pressure sensor 5.1, vacuum interrupter to have static side shielding case on movable end of vacuum arc extinguishing chamber metal shell
4。
Insulating layer 9 is epoxide resin material, is produced by vacuum casting process.Semi-conductive layer 10 is with epoxy resin
Base-material, is filler material with powdered graphite, and addition diluent is sprayed on insulating part outer surface and is cured, be may make after mixing
Nian Jie between insulating part and conduct piece securely wearability is high, and partial discharge is small.Semi-conductive layer 10, effect are by electrostatic or electrical body
The electric field of generation is directly grounded, and surface is the equal of the earth, and isolation electrostatic is to the influence inside pole.Thickness of insulating layer should be greater than
Equal to 20mm, semi-conductive layer thickness should be greater than being equal to 4mm.
Earthing switch vacuum interrupter static side shielding case 4 designs for circular ring shape, keeps covered region field distribution uniform.
Its corner need to carry out rounded corner smooth treatment, avoid edge sealing and the new point discharge of burr formation.
Set interface tube 2 is internal cone type structure, has uniform ring 11 in insulating layer.Grading ring 11 connects with vacuum interrupter static side
It connects.Grading ring 11 makes of stainless (steel) wire.Grading ring main function is the uniform electric field with cannula connection.Static side copper tip is used
In connecting sleeve and vacuum interrupter static side.It covers and is embedded with nut on four angles of flange face of interface tube 2, bolt passes through tiretube process
The corresponding mounting hole fixed sleeving in blue face.Joint face needs to increase silicone rubber pad, improves the sealing performance and insulating properties of joint face
Energy.
Ground terminal 8 is located at 6 top of movable end of vacuum arc extinguishing chamber of earthing switch pole, passes through 7 and the company of moved end 6 of being flexible coupling
It connects.Ground terminal 8 is connected with semi-conductive layer 10, realizes the bonding on 1 surface of earthing switch pole.
The utility model advantageous effect is：It is small, it is simple in structure, it is easy for installation, it safeguards simply, operating personnel is required
It is not high.
Embodiment 2
Insulating layer 9 is ethylene propylene diene monomer (EPDM) material, is processed by Shooting Technique.Semi-conductive layer 9 and grading ring 11 use ternary
EP rubbers is base-material, and it is charge to be fed with powdered graphite, and diluent injection molding after mixing is added.Earthing switch pole 1
When manufacture, grading ring, then more mold exchange pressure injection insulating layer, last pressure injection semi-conductive layer are first generated.Due to being all with EPDM
Rubber is base-material, may make and is bonded secured, wearability height between grading ring, insulating layer, semi-conductive layer, and partial discharge is small.EPDM
Material is high strength and high hardness rubber, repeats recycling and uses, belongs to environment-friendly materials.Since ethylene propylene diene rubber is with certain soft
Property, between the interface conical surface need not again silicone rubber pad as buffering.
Remaining is the same as embodiment 1.
Claims (5)
1. a kind of electric locomotive earthing switch pole, including set interface tube（2）, pull rod interface（3）, vacuum interrupter（5）, connect
Ground terminal（8）, cover interface tube（2）Positioned at earthing switch pole（1）Rear portion, pull rod interface（3）Positioned at earthing switch pole（1）Before
Portion, earthing switch pole（1）Inside there is vacuum interrupter（5）；It is characterized in that：Earthing switch pole（1）There is semiconductive in outer surface
Layer（10）, centre is insulating layer（9）；There is pressure sensor on movable end of vacuum arc extinguishing chamber metal shell（5.1）, vacuum interrupter has
Static side shielding case（4）；Cover interface tube（2）Inside there is grading ring（11）.
2. a kind of electric locomotive earthing switch pole as described in claim 1, it is characterised in that：Insulating layer be epoxy resin or
Person's ethylene propylene diene monomer (EPDM) material.
3. a kind of electric locomotive earthing switch pole as described in claim 1, it is characterised in that：Semi-conductive layer（）It 9 and presses
Ring（11）It is base-material with ethylene propylene diene rubber, it is charge to be fed with powdered graphite, and diluent injection molding after mixing is added.
4. a kind of electric locomotive earthing switch pole as described in Claims 2 or 3, it is characterised in that：Thickness of insulating layer should be big
In equal to 20mm, semi-conductive layer thickness should be greater than being equal to 4mm.
5. a kind of electric locomotive earthing switch pole as described in claim 1, it is characterised in that：Ground terminal（）8 be located at connect
The movable end of vacuum arc extinguishing chamber of ground switch pole（6）Top, by being flexible coupling（7）With moved end（6）Connection；Ground terminal（8）With half
Conductive layer（10）Conducting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820019895.7U CN207834192U (en) | 2018-01-06 | 2018-01-06 | A kind of electric locomotive earthing switch pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820019895.7U CN207834192U (en) | 2018-01-06 | 2018-01-06 | A kind of electric locomotive earthing switch pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207834192U true CN207834192U (en) | 2018-09-07 |
Family
ID=63392016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820019895.7U Active CN207834192U (en) | 2018-01-06 | 2018-01-06 | A kind of electric locomotive earthing switch pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207834192U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320991A (en) * | 2018-01-06 | 2018-07-24 | 北海银河开关设备有限公司 | A kind of electric locomotive earthing switch pole |
| CN113012973A (en) * | 2021-02-26 | 2021-06-22 | 西安西电开关电气有限公司 | Isolating switch with high-current switching-on and switching-off capacity |
-
2018
- 2018-01-06 CN CN201820019895.7U patent/CN207834192U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320991A (en) * | 2018-01-06 | 2018-07-24 | 北海银河开关设备有限公司 | A kind of electric locomotive earthing switch pole |
| CN113012973A (en) * | 2021-02-26 | 2021-06-22 | 西安西电开关电气有限公司 | Isolating switch with high-current switching-on and switching-off capacity |
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