CN102376491B - High-voltage ground switch - Google Patents
High-voltage ground switch Download PDFInfo
- Publication number
- CN102376491B CN102376491B CN201110315522.7A CN201110315522A CN102376491B CN 102376491 B CN102376491 B CN 102376491B CN 201110315522 A CN201110315522 A CN 201110315522A CN 102376491 B CN102376491 B CN 102376491B
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- Prior art keywords
- pivoted arm
- contact
- runner
- ground switch
- spring contact
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- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000003137 locomotive effect Effects 0.000 claims description 29
- 230000001681 protective effect Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- ZTXONRUJVYXVTJ-UHFFFAOYSA-N chromium copper Chemical compound [Cr][Cu][Cr] ZTXONRUJVYXVTJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004020 conductor Substances 0.000 abstract description 14
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a high-voltage ground switch, comprising an outside-vehicle assembly mounted on a base plate of a vacuum circuit breaker and an inside-vehicle assembly mounted in the vehicle, wherein the outside-vehicle assembly comprises a contact, an elastic contact seat matched with the contact, a swinging arm, a soft connecting line, a ground pole and a rotating shaft; the elastic contact is positioned at both ends of the vacuum circuit breaker, the contact is positioned on the swinging arm, the swinging arm is mounted on the rotating shaft through a transmission assembly, and the soft connection line is used for connecting the swinging arm and the ground pole; the inside-vehicle assembly comprises a bearing bracket, a handle assembly, an interlocking mechanism and a rotating wheel, and the rotating wheel drives the swinging arm into motion through the transmission assembly; and the handle assembly and the rotating wheel are coaxially horizontally mounted for driving the rotating wheel to rotate; and the interlocking mechanism is used for restricting the rotation of the rotating wheel. The high voltage ground switch provided by the invention has the advantages of effectively avoiding misoperation of motor vehicles or motor train sets by drivers and conductors due to various reasons, thus ensuring the security of the drivers and conductors and motor vehicles.
Description
Technical field
The invention belongs to the high-tension apparatus field of electric locomotive and motor train unit, particularly relate to a kind of high voltage ground switch.
Background technology
At present the electric locomotive on trunk railway and the speed of service of motor train unit are more and more faster, and scientific and technological content is also more and more higher, correspondingly require also more and more higher, particularly in the requirement of integrating control to the safety and reliability of various equipment supporting with it; In addition, locomotive safety running is theme eternal in railway development.
Electric locomotive and motor train unit there occurs beyond thought fault when running on trunk railway and need temporary parking to overhaul and in the process of the maintenance electric locomotive of each locomotive depot and motor train unit, often there will be such accident: as driver or maintenance worker often because of careless and inadvertent or can forget the main circuit breaker that disconnects on roof when dealing with an urgent situation and fall pantograph and climb up roof blindly and observe conditions; Or locomotive other driver and conductor when overhauling carries out unsuitable operation to locomotive, as risen pantograph.Both of these case all can cause personnel and to get an electric shock the heavy security incident of dead and locomotive electric apparatus damage, brings unnecessary economic loss to country.Along with country's increasing input to railway systems; the locomotive industry of China is developed rapidly; particularly the development speed of high-speed railway and motor train unit makes rapid progress especially; therefore correspondingly more and more higher to the requirement of locomotive roof electrical equipment, also ensure the safe operation of locomotive and the personal safety of driver and conductor in the urgent need to a kind of protective device simultaneously.
Summary of the invention
The personal safety that the invention solves locomotive safety running and the driver and conductor existed in prior art is difficult to the technical problem ensured.
The invention provides a kind of high voltage ground switch, the car inner assembly that described high voltage ground switch comprises the outer assembly of the car be installed on vacuum circuit-breaker base plate and is installed in car;
The outer assembly of described car comprises contact, the spring contact seat mated with contact, pivoted arm, soft line, earthing rod and rotating shaft; Spring contact seat is positioned at the two ends of vacuum circuit-breaker, and contact is positioned on pivoted arm, and described pivoted arm is installed in rotating shaft by transmission component, and soft line is used for pivoted arm to be connected with earthing rod;
Described car inner assembly comprises bearing pedestal, Handleset, interlocking gear and runner, and described runner drives pivoted arm motion by transmission component; Described Handleset and runner coaxial water safety fill, and for driving runner to rotate, described interlocking gear is used for limiting the rotation of runner.
High voltage ground switch provided by the invention, has following beneficial effect:
1, described high voltage ground switch is used for the circuit ground of locomotive vacuum breaker both sides; electric property is superior; the entrucking requirement of the rated current 1000A of high-power locomotive can be met, good protective effect is served to driver and conductor, electric locomotive or motor train unit, guarantees locomotive safety running.
2, described high voltage ground switch is by adopting the way of contact of contact and spring contact seat, overturns traditional tabular plug-in strip, the design of shell fragment, effectively can strengthen the contact between contact and spring contact seat, guarantee good contact, reduces loop resistance value simultaneously.
3, the outer assembly of the car of described high voltage ground switch and vacuum circuit-breaker are installed on same base plate, achieve integrated lightweight and Integration Design.
4, described high voltage ground switch adopts manual operation form, and structure is simple and be easy to safeguard, effectively can avoid the faulty operation that driver and conductor carries out locomotive or motor train unit because of a variety of causes, ensure the safety of driver and conductor and locomotive.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of high voltage ground switch provided by the invention and vacuum circuit-breaker.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
In figure, 100---vacuum circuit-breaker, 101---base plate; 11---upper pivoted arm, 12---lower pivoted arm, 2---silicon rubber insulation body; 3---soft line; 4---earthing rod, 5---rotating shaft, 61---upper contact head; 62---lower contact; 71---upper spring contact seat, 72---lower spring contact seat, 8---connecting plate; 91---upper contact head seat protective cover; 92---lower contact base protective cover, 21---bearing pedestal, 22---Handleset; 23---runner; 24---lock dog, 25---yellow key, 26---blue key.
Embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of high voltage ground switch, as shown in Figure 1 or 2, the car inner assembly that described high voltage ground switch comprises the outer assembly of the car be installed on the base plate 101 of vacuum circuit-breaker 100 and is installed in car.
Wherein, the outer assembly of described car comprises contact, the spring contact seat mated with contact, pivoted arm, soft line 3, earthing rod 4 and rotating shaft 5.In the present invention, described contact and spring contact seat number are two, and the position one_to_one corresponding of the position of two contacts and two spring contact seats.Particularly, as shown in Figure 1, two contacts are respectively upper contact head 61, lower contact 62, two spring contact seats are respectively spring contact seat 71, lower spring contact seat 72.Upper spring contact seat 71 and lower spring contact seat 72 lay respectively at the two ends of vacuum circuit-breaker 100, and upper contact head 61 and lower contact 62 are all positioned on pivoted arm.
As shown in Figure 1, be connected by connecting plate 8 between upper contact head 61 with lower contact 62.Described connecting plate 8 adopts thickness to be the silver-plated red copper row T2-Y material of 6mm, and it conducts electricity very well, and effectively can make up the deficiency of conductive capability when aluminium connects in prior art, also mitigate product category simultaneously, realize light-weight design.
In the present invention, upper spring contact seat 71 is identical with the shape of lower spring contact seat 72, and it circumferentially has 20 width is the groove of 1mm, forms 20 elasticity strip pawls.Extension spring has also been bound round in the periphery of described elasticity strip pawl, thus can strengthen the contact between spring contact seat and contact, effectively reduces loop resistance value.
Particularly, upper contact head 61, lower contact 62 all adopt Φ 22 chromiumcopper material (CuCrZr) to manufacture, and its abrasion resistance is better than red copper.Under preferable case, adopt the chromiumcopper material of electroplate to manufacture contact of the present invention, its electric conductivity can be improved further.Described upper spring contact seat 71, lower spring contact seat 72 all adopt the chromiumcopper material (CuCrZr) of Φ 30 to manufacture.
In the present invention, described spring contact seat periphery is also provided with contact base protective cover.Particularly, as shown in Figure 1 or 2, outside upper spring contact seat 71, be arranged with upper contact head seat protective cover 91, outside lower spring contact seat 72, be arranged with lower contact base protective cover 92.Described upper contact head seat protective cover 91, lower contact base protective cover 92 can play the effect increasing electric clearance, reduce the impact of outside harsh weather on contact, spring contact seat simultaneously.
Described pivoted arm is installed in rotating shaft 5 by transmission component, and soft line 3 is for being connected pivoted arm with earthing rod 4.As shown in Figure 1 or 2, pivoted arm comprises the upper pivoted arm 11 and lower pivoted arm 12 that can independently rotate separately, and upper contact head 61 is positioned on pivoted arm 11, and lower contact 62 is positioned on lower pivoted arm 12, and lower pivoted arm 12 is installed in rotating shaft 5.In the present invention, described lower pivoted arm 12 is electric conductor.As shown in Figure 3, pivoted arm first by continuing to extend on earthing rod 4 after the transition of lower pivoted arm 12, thus is connected with earthing rod 4 by described soft line 3 again.
One end near rotating shaft 5 on lower pivoted arm 12 is provided with silicon rubber insulation body 2.By the setting of silicon rubber insulation body 2, can effectively increase creepage distance and electric clearance.
Described car inner assembly comprises bearing pedestal 21, Handleset 22, interlocking gear and runner 23.Described runner 23 drives upper pivoted arm 11 by transmission component, lower pivoted arm 12 moves, thus drive upper contact head 61, lower contact 62 to move, thus realize upper contact head 61 and the closed of upper spring contact seat 71 with disconnect and lower contact 62 and the closed of lower spring contact seat 72 with disconnect.Handleset 22 and runner 23 coaxial water safety fill, and rotate for driving runner 23.Described Handleset 22 comprises handle and handle axis of rotation.
Described interlocking gear is used for limiting the rotation of runner 23.Particularly, described interlocking gear comprises two lock cores, lock core linkage board and lock dog 24, and described runner 23 is provided with groove, and the groove that lock core linkage board driving lock dog 24 lower end embedded or left runner 23 realizes limiting the rotation of runner 23.
Described two lock cores comprise a blue lock core and yellow lock core, and each lock core is configured with homochromy key respectively.Wherein, yellow key 25 matches with locomotive high-voltage Electric Appliance Cabinet and top door, and blue key 26 matches with motorcycle pantograph rising knob.
The operation principle of high voltage ground switch provided by the invention is:
When the handle of Handleset 22 is in " operation " position, the outer upper contact head 61 of assembly of car is separated with the upper spring contact seat 71 on vacuum circuit-breaker 100, and lower contact 62 is separated with the lower spring contact seat 72 on vacuum circuit-breaker 100; Now, blue key 26 on the blue lock core of i.e. rotatable car inner assembly, lock dog 24 lower end is driven to embed in the groove of runner 23 by lock core linkage board, by runner 23 locking position, then take out blue key 26 from blue lock core and be inserted into motorcycle pantograph rising knob, now driver and conductor just can be indoor by pantograph rise in locomotive control, starts locomotive.
When needs parking is overhauled locomotive, vacuum circuit-breaker 100 disconnects by driver and conductor in locomotive control, and fall the pantograph of roof, then take out blue key 26 from knob and insert in the blue lock core of the car inner assembly of high voltage ground switch of the present invention, rotate blue key 26, lock dog 24 is driven to leave the groove of runner 23 by lock core linkage board, now runner 23 is unlocked state, the i.e. handle axis of rotation of rotatable handles assembly 22, rotated 135 ° to be in " ground connection position " to handle, upper pivoted arm 11 is driven by transmission component in runner 23 rotation process, lower pivoted arm 12 moves, upper contact head 61 is contacted completely with upper spring contact seat 71, lower contact 62 contacts completely with lower spring contact seat 72, now namely by the circuit reliable ground of vacuum circuit-breaker 100 both sides.Now, driver and conductor can rotate yellow key 25, drives the lower end of lock dog 24 to embed in the groove of runner 23 by lock core linkage board, runner 23 is pinned, then take out yellow key 25, now can open locomotive high-voltage electrical equipment or top door, inspection and maintenance is carried out to locomotive.
High voltage ground switch provided by the invention, adopt manual operation form, structure is simply easy to safeguard, has higher operating reliability, effectively can avoid the faulty operation that driver and conductor carries out locomotive or motor train unit because of a variety of causes, ensure the safety of driver and conductor and locomotive.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a high voltage ground switch, is characterized in that, the car inner assembly that described high voltage ground switch comprises the outer assembly of the car be installed on vacuum circuit-breaker base plate and is installed in car;
The outer assembly of described car comprises contact, the spring contact seat mated with contact, pivoted arm, soft line, earthing rod and rotating shaft; Spring contact seat is positioned at the two ends of vacuum circuit-breaker, contact is positioned on pivoted arm, and described pivoted arm is installed in rotating shaft by transmission component, and soft line is used for pivoted arm to be connected with earthing rod, described soft line, by being firmly connected between earthing rod with base plate, ensures that ground connection is reliable;
Described car inner assembly comprises bearing pedestal, Handleset, interlocking gear and runner, and described runner drives pivoted arm motion by transmission component; Described Handleset and runner coaxial water safety fill, and for driving runner to rotate, described interlocking gear is used for limiting the rotation of runner;
20 width that circumferentially have of described spring contact seat are the groove of 1mm, form 20 elasticity strip pawls be fixedly linked on spring contact seat; Extension spring has also been bound round in the periphery of described elasticity strip pawl;
Described interlocking gear comprises two lock cores, lock core linkage board and lock dog, and described runner is provided with groove, and the groove that lock core linkage board driving lock dog lower end embedded or left runner realizes limiting the rotation of runner;
Described two lock cores comprise a blue lock core and yellow lock core, and each lock core is configured with homochromy key respectively; Wherein, yellow key and locomotive high-voltage Electric Appliance Cabinet and top door match, and blue key and motorcycle pantograph rising knob match;
The number of described contact and spring contact seat is two, two spring contact seats lay respectively at the two ends of vacuum circuit-breaker, two contacts are positioned on pivoted arm, and the position one_to_one corresponding of the position of two contacts and two spring contact seats, connected by connecting plate between two contacts.
2. high voltage ground switch according to claim 1, is characterized in that, the silver-plated red copper row T2-Y material of described connecting plate to be thickness be 6mm.
3. high voltage ground switch according to claim 1, is characterized in that, pivoted arm comprises the upper pivoted arm and lower pivoted arm that can independently rotate separately, and a contact is positioned on pivoted arm, and another contact is positioned on lower pivoted arm, and lower pivoted arm is installed in rotating shaft.
4. high voltage ground switch according to claim 3, is characterized in that, the one end near rotating shaft on described lower pivoted arm is provided with silicon rubber insulation body.
5. high voltage ground switch according to claim 1, is characterized in that, described contact is Φ 22 chromiumcopper material, and described spring contact seat is the chromiumcopper material of Φ 30.
6. high voltage ground switch according to claim 1, is characterized in that, described spring contact seat periphery is also provided with contact base protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110315522.7A CN102376491B (en) | 2011-10-18 | 2011-10-18 | High-voltage ground switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110315522.7A CN102376491B (en) | 2011-10-18 | 2011-10-18 | High-voltage ground switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102376491A CN102376491A (en) | 2012-03-14 |
| CN102376491B true CN102376491B (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110315522.7A Active CN102376491B (en) | 2011-10-18 | 2011-10-18 | High-voltage ground switch |
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| Country | Link |
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| CN (1) | CN102376491B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594953B (en) * | 2013-11-27 | 2016-08-17 | 北京赛德高科铁道电气科技有限责任公司 | A kind of electric locomotive GIS high-voltaghe compartment |
| CN103681082A (en) * | 2013-12-31 | 2014-03-26 | 南车株洲电力机车研究所有限公司 | Grounding switch |
| FR3024799B1 (en) * | 2014-08-06 | 2016-09-02 | Alstom Transp Tech | ROOF SWITCH FOR RAILWAY VEHICLE ADAPTED TO CONDITIONS OF FROST |
| CN107481887A (en) * | 2017-08-18 | 2017-12-15 | 株洲庆云电力机车配件工厂有限公司 | A kind of EMUs vacuum circuit breaker |
| CN114203475B (en) * | 2021-12-03 | 2024-06-28 | 北京中车赛德铁道电气科技有限公司 | Grounding switch with reinforced insulating moving and static contact structure |
| CN118137177B (en) * | 2024-05-10 | 2024-06-28 | 国网山东省电力公司德州市陵城区供电公司 | An electric grounding column with looseness indication function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1564064A2 (en) * | 2004-02-10 | 2005-08-17 | Faiveley Transport | Multifunctional device for collecting current in a railway system |
| CN201181643Y (en) * | 2008-02-04 | 2009-01-14 | 涂大石 | Novel current mutual inductor |
| CN201359953Y (en) * | 2008-11-14 | 2009-12-09 | 株洲庆云电力机车配件工厂 | High-voltage grounding switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2867562Y (en) * | 2006-01-27 | 2007-02-07 | 中国北车集团大同电力机车有限责任公司 | Electric power locomotive combined switch device |
| CN202268283U (en) * | 2011-10-18 | 2012-06-06 | 株洲庆云电力机车配件工厂有限公司 | High voltage grounding switch |
-
2011
- 2011-10-18 CN CN201110315522.7A patent/CN102376491B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1564064A2 (en) * | 2004-02-10 | 2005-08-17 | Faiveley Transport | Multifunctional device for collecting current in a railway system |
| CN201181643Y (en) * | 2008-02-04 | 2009-01-14 | 涂大石 | Novel current mutual inductor |
| CN201359953Y (en) * | 2008-11-14 | 2009-12-09 | 株洲庆云电力机车配件工厂 | High-voltage grounding switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102376491A (en) | 2012-03-14 |
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