CN105329106A - Rigidity and flexibility combined pantograph slide plate device - Google Patents
Rigidity and flexibility combined pantograph slide plate device Download PDFInfo
- Publication number
- CN105329106A CN105329106A CN201510904384.4A CN201510904384A CN105329106A CN 105329106 A CN105329106 A CN 105329106A CN 201510904384 A CN201510904384 A CN 201510904384A CN 105329106 A CN105329106 A CN 105329106A
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- slide plate
- contact
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- pantograph
- rigidity
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- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention discloses a rigidity and flexibility combined pantograph slide plate device. The rigidity and flexibility combined pantograph slide plate device is formed by adding a flexible slide plate on the basis of a traditional rigid slide plate. The traditional rigid slide plate and the flexible slide plate are assembled on the same pantograph head. The flexible slide plate is made from a flexible conductive material. Good contact between the flexible slide plate and a contact net can be achieved under small contact force, and therefore the contact resistance of the slide plates is reduced, and electric heating ablation caused when local temperature is too high can be reduced. Contact between the flexible slide plate and the contact net can be kept at any time even in oscillation caused by a pantograph net, the offline possibility is reduced, and therefore electric arcs can be greatly reduced, and electric abrasion between the slide plates and the contact net is reduced. Meanwhile, the number of conductive spots is greatly increased due to the concave contact face of the flexible slide plate, the pressure of contact between the flexible slide plate and the pantograph net can be remarkably reduced compared with the traditional rigid slide plate, and therefore mechanical friction and loss of the rigid slide plate are reduced, the service life of the slide plates can be greatly prolonged, and maintenance and replacement cost is reduced. The rigidity and flexibility combined pantograph slide plate device is suitable for subways, light rails and other low-speed electric automobiles and is also suitable for high-speed trains.
Description
Technical field
The invention belongs to the pantograph device technical field that guideway vehicle comprises subway, light rail, magnetic suspension train, electric express locomotive and EMU etc., be specifically related to a kind of pantograph pan device of rigid flexible system.
Background technology
Pantograph is that electrically-driven car obtains the electrical equipment of electric energy from contact system, is arranged on the roof of locomotive or motor-car by insulator.When pantograph rises, its slide plate contacts with contact line conducting wire, from contact line conducting wire by flowing power taking for hauling engine and other electrical equipment.The most general single arm pantograph of current use is made up of parts such as slide plate, upper frame, lower arm rod, underframe, rising bow spring, transmission cylinder, supporting insulators, its middle slide plate is one of most important parts of pantograph, slide plate and contact line conducting wire constitute the special friction pair of a pair machinery and electrical couplings, its principal feature is slide plate high-speed slide, is got heavy current from contact system.Due to mechanics and the electrology characteristic of Pantograph-OCS system complexity, cause the working environment very severe of slide plate, a lot of problem such as vibration, frictional heat, arc erosion is faced in operational process, topmost be exactly slide plate abrasion lost efficacy, for carbon system slide plate (comprising pure carbon plate, metal-impregnated carbon plate and fibre reinforced compound carbon plate etc.), the risk also there is block, fractureing, come off.Slide plate, once lose efficacy, seriously will jeopardize traffic safety, therefore requires the necessary economic security of its use, both little to contact system lead abrasion, self has enough service life, does not affect pantograph contact line relation again.
For ensureing pantograph and contact system good contact, in the scope that height of contact wire allows, require that pantograph pan has certain contact (being generally 70-90N) to contact wire, when the pantograph of high-speed motion slips over static contact system, contact system is subject to the impact of pantograph pan contact, so produce dynamic interaction between pantograph and contact system, cause the vibration that Pantograph-OCS system produces specific modality.When vibration acquires a certain degree, can cause the of short duration disengaging of pantograph pan and contact wire, form off-line, produce electric arc and spark, directly impact is flowed, and power supply momentary interruption even can be caused to make train lose tractive force and braking force.And the contact forces of bow net excessive time, though can reduce contact loss rate, contact wire and abrasion of pantograph pan increase, service life shorten.
The abrasion of slide plate and contact wire are except mechanical friction loss, more importantly arc loss, it is the serious ablation behavior that electric arc occurs under heat, power effect, cause the oxidation of contact surface, melting, evaporation, splash etc., cause the uneven of contact wire and pantograph pan, increase bow net contact resistance, localized hyperthermia even deposite metal and produce fusion point is there is at mating surfaces, if locomotive travels at high speeds, fusion point comes off instantaneously, make contact wire and pantograph pan damaged condition more serious.To corrode and abrasion must affect that bow net is stable to be flowed, damage contact wire and slide plate, increase maintenance load, then cause contact wire to rupture time serious, cause locomotive operation accident.The another one harm of electric arc is; when bow net electric arc produces; the electric drive system of Traction networks and electric locomotive is linked together by electric arc; electric arc between contact system and pantograph there is pressure drop, after electric arc disappears, if electric locomotive is also in off-line state; the electric current in circuit is then caused to be undergone mutation; produce over voltage, over voltage is propagated on contact system, brings threat can to the insulation of whole Traction networks; Over voltage enters intra-locomotive along pantograph, may cause damage, produce serious influence to the safe operation of electric locomotive to locomotive electric cad system equipment, electronics package etc.3rd harm of electric arc produces high frequency noise, and launch high frequency noise towards periphery when electric arc produces, the communication signal along the line to locomotive and radio signal cause very large interference, can cause the phenomenon such as communication interruption and radio signal inefficacy time serious.High frequency noise also has impact to the control signal of locomotive, is the hidden danger of locomotive safety running.
The operative practice of high speed train shows, the speed of electric locomotive is higher, and the possibility that pantograph is separated with contact wire is larger, and bow net electric arc more easily produces.Along with improving constantly of China's high ferro running velocity, the train of current 300-350km/h gradually becomes main flow, more speed such as the train of about 500km/h has also been listed in high ferro development program, as effectively do not overcome the harm that bow net electric arc causes, will directly restrict the development of China Express Railway.
The factor causing electric arc to produce is a lot, but above final contact resistance of all summing up in the point that slide plate and contact system, and contact resistance is excessive and acute variation is that current pantograph rigidity slide plate and contact system cliding friction are subject to flow the born defect of way to take power.Although research staff takes all measures for this reason, for example reduce contact resistance by exploitation low-resistivity sliding material, as metal-impregnated carbon slide, powder shaped charge liner, but because the conduction amount of speckle in bow net contact face cannot increase by actv., the effect therefore by means of only improvement slide plate material minimizing electric arc is not bery desirable.
For the problem existing for traditional pantograph, the present invention devises the pantograph pan device that a kind of rigidity slide plate is combined with flexible slide plate, its principle increases by one piece of flexible slide plate on traditional rigidity slide plate basis, quiet contact is born primarily of rigidity slide plate, the Compress Spring that contact between flexible slide plate and contact wire then carries primarily of flexible slide plate provides, when rigidity skateboard spring is compressed to the limit, the spring of flexible slide plate is still in comparatively lax state, flexible slide plate is made up of flexible conducting material, even if so very little contact can realize good contact, thus decrease the contact resistance of slide plate, and along with the phugoid oscillation of bow net, flexible slide plate can keep the contact with contact system at any time, reduce the probability of off-line, thus greatly reduce the generation of electric arc, reduce the electrical wear of slide plate and contact system, simultaneously, because flexible slide plate substantially improves the contact performance of bow net, add a large amount of conduction spots, bow net contact pressure can obviously be reduced, thus reduce the mechanical friction loss of rigidity slide plate, therefore the service life of slide plate is greatly extended, reduce maintenance, replacement cost.This slide plate is applicable to the low speed electric such as subway, light rail locomotive, and the high speed train and even the superexpress train that are also applicable to more than 350 kilometers use.
Summary of the invention
Technical matters to be solved by this invention be to provide a kind of safe and reliable, life-span long, safeguard less and the pantograph pan device of less generation electric arc.
A pantograph pan device for rigid flexible system, is at least made up of rigidity slide plate, flexible slide plate, slide plate framework and attached spring case thereof.
Described rigidity slide plate can be pure carbon plate, metal-impregnated carbon plate or partial metallurgy plate, also can be novel carbon fibre reinforced composite plate; It mainly bears the contact that contact system applies; Rigidity slide plate is connected with the slide plate framework of bow, and slide plate framework and attached spring case are assembled together.
Described flexible slide plate is made up of conductive slider and electrically-conductive backing plate; Conductive slider is made up of the composition fiber of flexible conducting material as carbon fiber, graphite fiber or doping metals fiber; Substrate is made up of copper, corrosion-resistant steel, aluminium and other alloy; Conductive slider conducting resinl is bonded on substrate.
Further, described conductive slider can be the braiding of conductive fiber 3 D stereo precast body, also can be the felt, blanket, sponge or plate etc. that conductive fiber is made; Braiding precast body can size one-shot forming on request, and the general 20-100mm of its thickness, width 30-150mm, felt, blanket, sponge or plate etc. can be cut into required size.
The spring case of described flexible slide plate totally two, be welded on respectively on the crossbeam of bow, flexible slide plate is connected with slide plate framework, and slide plate framework and attached spring case are assembled together.
Further, the spring of described flexible slide plate is compressing spring, for generation of the contact force upwards that size is suitable, makes flexible slide plate and contact wire keep contacting closely, is unlikely to again contact and excessively causes frictional loss to increase; The elasticity modulus of flexible skateboard spring is less than the spring of rigidity slide plate.
Further, described slide plate is not when contacting with contact system, and the height of flexible slide plate at least wants specific rigidity slide plate to exceed more than 5mm.
Beneficial effect of the present invention is: form concave surface when 1) flexible slide plate contacts with contact system, area of contact is significantly increased, and conduction amount of speckle increases severely, and can greatly reduce the contact resistance of slide plate, avoid the electrothermal ablation of the too high initiation of local temperature; 2) good contact of flexible slide plate and contact system, can guarantee slide plate also can be made to keep the contact with contact system at any time when the circuit by irregularity, reduces the probability of off-line, thus greatly reduces the probability of occurrence of electric arc, reduces the electrical wear of slide plate and contact system; 3) flexible slide plate significantly can improve the contact performance of bow net, and bow net contact pressure can obviously be reduced, thus reduces the mechanical friction loss of rigidity slide plate, greatly extends the service life of slide plate, reduces maintenance, replacement cost.4) this slide plate not only may be used for the low speed electric such as subway, light rail locomotive, is also applicable to the high speed train of more than 350 kilometers and even the use of superexpress train.
Accompanying drawing explanation
Fig. 1 is skate apparatus birds-eye view.
Fig. 2 is slide plate framework and spring case schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described.
As shown in Figure 1-2, pantograph pan device of the present invention at least comprises rigidity slide plate 1, flexible slide plate 2, rigidity slide plate framework 3, attached spring case 4, flexible slide plate framework 5 and attached spring case 6.
Embodiment one:
Step 1, with the graphite fiber after 60K polyacrylonitrile-based carbon fibre and high temperature (2500-3300 DEG C) graphitization thereof and copper fiber, three carries out 3 dimension stereo weavings according to certain ratio, and wherein the ratio of copper is not less than 15%(percent by weight), be woven into the satisfactory precast body of shape;
Step 2, carries out napping process by the bottom surface of precast body, makes its surface coverage one deck fiber; The long 2-5mm of fiber, precast body bottom surface fiber sprays one deck copper powder;
Step 3, substrate is carried out eliminate rust, decontamination, frosted process, then coat the conducting resinl of uniform thickness;
Step 4, is layered on precast body on substrate, compacting, carries out heatcure by special program curing;
Step 5, on the slide plate framework 3 that leaching copper carbon slipper 1 and above-mentioned flexible slide plate 2 are arranged on bow respectively and slide plate framework 5 (slide plate framework 3 and slide plate framework 5 are assemblied in spring case 4 in advance respectively with on spring case 6).
Embodiment two:
Step 1 take polyacrylonitrile fibre as raw material, and thickness 30mm is on request processed into felt, through pre-oxygen, charing, after at 2500-3000 DEG C high temperature carry out graphitization processing and make graphite felt;
Step 2, is cut into required size by graphite felt; Wherein the width of felt is 50mm;
Step 3, utilizes molten metal high pressure to soak carbon technique and carries out the process of leaching nickel to graphite felt, obtains leaching nickel graphite felt;
Step 4, sprays one deck copper powder in graphite felt bottom surface;
Step 5, substrate is carried out eliminate rust, decontamination, frosted process, then coat the conducting resinl of uniform thickness;
Step 6, is layered on precast body on substrate, compacting, carries out heatcure by special program curing;
Step 7, on the slide plate framework 3 that leaching copper carbon slipper 1 and above-mentioned flexible slide plate 2 are arranged on bow respectively and slide plate framework 5 (slide plate framework 3 and slide plate framework 5 are assemblied in spring case 4 in advance respectively with on spring case 6).
Embodiment three:
Step 1, with the graphite fiber after 48K polyacrylonitrile-based carbon fibre and high temperature (2500-3300 DEG C) graphitization thereof and copper fiber, three is not less than 35% according to the ratio (percent by weight) of copper, carbon fiber is not less than 25%, the graphite felt of thickness composite design is made by acupuncture felt technique, then be cut into required size, wherein width is 40mm;
Step 2-5, the step 4-7 of corresponding embodiment two.
Above embodiment just one of preferred embodiment; to make those skilled in the art understand the present invention better; unintelligible is restriction to right protection scope of the present invention; on the contrary; for the common scientific research personnel of this area; the change of any unsubstantiality that all the present invention of utilization carry out or adjustment, all should fall within protection scope of the present invention.
Claims (7)
1. a pantograph pan device for rigid flexible system, is characterized in that, is at least made up of rigidity slide plate, flexible slide plate, slide plate framework and attached spring case thereof.
2. according to the pantograph pan device of a kind of rigid flexible system according to claim 1, it is characterized in that, described rigidity slide plate can be pure carbon plate, metal-impregnated carbon plate or partial metallurgy plate, also can be novel carbon fibre reinforced composite plate; It mainly bears the contact that contact system applies; Rigidity slide plate is connected with the slide plate framework of bow, and slide plate framework and attached spring case are assembled together.
3. according to the pantograph pan device of a kind of rigid flexible system according to claim 1, it is characterized in that, described flexible slide plate is made up of conductive slider and electrically-conductive backing plate; Conductive slider is made up of the composition fiber of flexible conducting material as carbon fiber, graphite fiber or doping metals fiber; Substrate is made up of copper, corrosion-resistant steel, aluminium or other alloy; Conductive slider conducting resinl is bonded on substrate.
4., according to the pantograph pan device of a kind of rigid flexible system according to claim 3, it is characterized in that, described conductive slider can be the braiding of conductive fiber 3 D stereo precast body, also can be the felt, blanket, sponge or plate etc. that conductive fiber is made; Braiding precast body can size one-shot forming on request, and the general 20-100mm of its thickness, width 30-150mm, felt, blanket, sponge or plate etc. can be cut into required size.
5. according to the pantograph pan device of a kind of rigid flexible system according to claim 1, it is characterized in that, the spring case of described flexible slide plate totally two, is welded on the crossbeam of bow respectively, flexible slide plate is connected with slide plate framework, and slide plate framework and spring case are assembled together.
6. according to the pantograph pan device of a kind of rigid flexible system according to claim 5, it is characterized in that, the spring of described flexible slide plate is compressing spring, and its elasticity modulus is less than the spring of rigidity slide plate.
7. according to the pantograph pan device of a kind of rigid flexible system according to claim 1, it is characterized in that, when described flexible slide plate does not contact with contact system, it highly at least wants specific rigidity slide plate to exceed more than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510904384.4A CN105329106A (en) | 2015-12-09 | 2015-12-09 | Rigidity and flexibility combined pantograph slide plate device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510904384.4A CN105329106A (en) | 2015-12-09 | 2015-12-09 | Rigidity and flexibility combined pantograph slide plate device |
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| Publication Number | Publication Date |
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| CN105329106A true CN105329106A (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510904384.4A Pending CN105329106A (en) | 2015-12-09 | 2015-12-09 | Rigidity and flexibility combined pantograph slide plate device |
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| CN (1) | CN105329106A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494235A (en) * | 2016-12-27 | 2017-03-15 | 北京中车赛德铁道电气科技有限公司 | A kind of double-standard high speed pantograph bow |
| CN109203998A (en) * | 2017-06-30 | 2019-01-15 | 郑州宇通客车股份有限公司 | Pantograph and the charging structure and electric car for using the pantograph |
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| GB416328A (en) * | 1933-06-10 | 1934-09-11 | English Electric Co Ltd | Improvements in or relating to overhead current collector gear for electric locomotives and the like |
| CH198307A (en) * | 1937-08-09 | 1938-06-15 | Licentia Gmbh | Pantograph head with carbon contact strips for electric traction vehicles. |
| GB518296A (en) * | 1938-09-06 | 1940-02-22 | Robert Brooks | Improvements in pantagraph current collecting devices for electric railway vehicles |
| US4226917A (en) * | 1977-04-15 | 1980-10-07 | Hitachi, Ltd. | Composite joint system including composite structure of carbon fibers embedded in copper matrix |
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| DE4109878A1 (en) * | 1991-03-26 | 1992-10-01 | Ringsdorff Werke Gmbh | Mounting for current-collecting shoe of pantograph - uses spring-loaded bolt to attach baseplate to carrier |
| JPH08205308A (en) * | 1995-01-27 | 1996-08-09 | Hitachi Ltd | Current collector for car |
| CN1833904A (en) * | 2005-03-15 | 2006-09-20 | 魏祥华 | Slider arc-extinguishing device |
| CN103192718A (en) * | 2013-04-02 | 2013-07-10 | 湖南大学 | Composite material for pantograph slide plate and preparing method thereof |
| CN203283039U (en) * | 2013-06-13 | 2013-11-13 | 重庆懿虹科技发展有限责任公司 | Shock absorption sliding plate component connecting pantograph type current collector and contacting network |
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Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1370018A (en) * | 1917-03-14 | 1921-03-01 | Westinghouse Electric & Mfg Co | Trolley-shoe |
| GB323994A (en) * | 1929-03-19 | 1930-01-16 | Gyula Fischer | Improvements in current collectors for electric vehicles |
| GB394164A (en) * | 1931-08-20 | 1933-06-22 | Franz Szalay | Improvements in or relating to current collectors for electric railways |
| FR755230A (en) * | 1932-05-07 | 1933-11-21 | Bow and pantograph slider for electric traction by overhead wire | |
| GB416328A (en) * | 1933-06-10 | 1934-09-11 | English Electric Co Ltd | Improvements in or relating to overhead current collector gear for electric locomotives and the like |
| CH198307A (en) * | 1937-08-09 | 1938-06-15 | Licentia Gmbh | Pantograph head with carbon contact strips for electric traction vehicles. |
| GB518296A (en) * | 1938-09-06 | 1940-02-22 | Robert Brooks | Improvements in pantagraph current collecting devices for electric railway vehicles |
| US4226917A (en) * | 1977-04-15 | 1980-10-07 | Hitachi, Ltd. | Composite joint system including composite structure of carbon fibers embedded in copper matrix |
| JPS62118703A (en) * | 1985-11-18 | 1987-05-30 | Toyo Electric Mfg Co Ltd | Slide plate supporting structure for current collector |
| DE4109878A1 (en) * | 1991-03-26 | 1992-10-01 | Ringsdorff Werke Gmbh | Mounting for current-collecting shoe of pantograph - uses spring-loaded bolt to attach baseplate to carrier |
| JPH08205308A (en) * | 1995-01-27 | 1996-08-09 | Hitachi Ltd | Current collector for car |
| CN1833904A (en) * | 2005-03-15 | 2006-09-20 | 魏祥华 | Slider arc-extinguishing device |
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| CN203283039U (en) * | 2013-06-13 | 2013-11-13 | 重庆懿虹科技发展有限责任公司 | Shock absorption sliding plate component connecting pantograph type current collector and contacting network |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494235A (en) * | 2016-12-27 | 2017-03-15 | 北京中车赛德铁道电气科技有限公司 | A kind of double-standard high speed pantograph bow |
| CN106494235B (en) * | 2016-12-27 | 2019-02-22 | 北京中车赛德铁道电气科技有限公司 | A kind of double-standard high speed pantograph bow |
| CN109203998A (en) * | 2017-06-30 | 2019-01-15 | 郑州宇通客车股份有限公司 | Pantograph and the charging structure and electric car for using the pantograph |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160217 |