CN1291875C - Antiscratch protector for collector bow of electric locomotive - Google Patents
Antiscratch protector for collector bow of electric locomotive Download PDFInfo
- Publication number
- CN1291875C CN1291875C CN 02115020 CN02115020A CN1291875C CN 1291875 C CN1291875 C CN 1291875C CN 02115020 CN02115020 CN 02115020 CN 02115020 A CN02115020 A CN 02115020A CN 1291875 C CN1291875 C CN 1291875C
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- bow
- valve
- subsystem
- pantograph
- slide plate
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Abstract
The present invention relates to a pantograph protector of an electric locomotive, which comprises a detecting subsystem, a signal conversion subsystem, an accident pantograph lowering subsystem, a pantograph head air source subsystem and a normal pantograph rising and lowering subsystem. Three kinds of protection of slide plate block dropping protection, pantograph corner stroking protection and pantograph head transversal over-limit deflection protection are adopted for providing a guarantee for the safe operation of a pantograph net, and the cost of the protector is lower than that of similar products at home and abroad, so the pantograph protector has high popularization value.
Description
Technical field
The present invention relates to a kind of use for electric locomotive pantograph fender guard.
Technical background
Pantograph is in operation, and the accident of scrape bow, scraping net happens occasionally, and traces it to its cause, and bow, net two aspect reasons all have: for bow, the accident that causes with the accidental defective of bow slide plate is many; For net, break slide plate and line fork place inoperative with hard spot and propped up and lowly beat that to bend the angle be many.Because the defect of net aspect also is accidental with uncertain usually; so for preventing this class accident, normally write an article on bow, external product generally installs scratch resistant bow fender guard additional on bow; but these products involve great expense usually, are unfavorable for large-scale promotion application.
The purpose of this invention is to provide a kind of can overcome scrape bow, scrape online story so, and cheap pantograph fender guard.
Summary of the invention
The object of the present invention is achieved like this:
This device has five subsystems:
Detection subsystem comprises, ventilation bow, end position protecting component and displacement pickup;
The signal conversion subsystem comprises pressure reduction relay, pantograph protection intermediate relay and 3 position-5 way electric control valve.
Emergency bow-lowering subsystem comprises gas control shutoff valve, by pass valve and exhaust shutter.
Pneumatic subsystem for bow comprises filtering pressure reducing valve, flow regulating valve, High-Voltage Insulation pipe, valve quaternary part composition.
The subsystem of normal lifting bow comprises quick liter bow valve, quick exhaust valve and flow regulating valve.
As to further improvement of the present invention, below the slide plate of ventilation bow the remittance tracheae is housed, with the vent plug sealing that has O type circle, slide plate is pressed thereon on the pore of remittance tracheae, and when slide plate fell piece, vent plug ejects exitted.
As improvement of the present invention, the ventilation protecting component at place, bow angle, top is easily broken vent plug cap, ventilation below, when contact wire slides into this, the fracture of easily broken gas cap lid, venting.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further details.
Accompanying drawing 1 is a schematic diagram of gas circuit of the present invention;
Accompanying drawing 2 is schematic circuit diagram of the present invention;
Accompanying drawing 3 is a ventilation bow structural representation of the present invention;
Accompanying drawing 4 is an end position protecting component structural representation of the present invention;
Accompanying drawing 5 is a displacement sensor structure scheme drawing of the present invention;
Accompanying drawing 6 is a pressure reduction relay construction scheme drawing of the present invention;
Accompanying drawing 7 falls bow executive subsystem structural representation for accident of the present invention;
Accompanying drawing 8 is a normal lifting bow control subsystem structural representation of the present invention;
Accompanying drawing 9 is that bow of the present invention supports and the balance mode structural representation.
Specific embodiment
Shown in accompanying drawing 1,2, pantograph is scraped the bow fender guard and is comprised 5 subsystems:
1, detection subsystem (JC)
Comprise ventilation bow 110, end position protecting component 120 and displacement pickup 130.
Ventilation bow 110 as shown in Figure 3, is made up of slide plate 111, slide plate holder 112, the elements such as tracheae 115, vent plug cover 113, vent plug 114 that converge.
Slide plate 111 below flat-bottom holes, the tracheae 115 that converges adopts thin metallic tubd to make.Be welded with a plurality of vent plug covers 113 on it, in vent plug 114 is housed, heatproof oil proof rubber O type circle is housed on the vent plug 114, during locomotive operation, all be filled with pressurized air in remittance tracheae 115 and the vent plug 114, vent plug 114 upwards withstands slide plate 111 bottom outlets under gas pressure, because of the sealing of O type circle is arranged on the vent plug 114, pressurized air is unlikely releases.When if in service slide plate 111 was broken piece, then vent plug 114 ejected under the pressurized air effect, and pressurized air is emitted in the ventilation bow 110, and protection will be dropped into successively.
The slide plate 111 and the tracheae 115 that converges are screwed in slide plate holder 112, become a removable integral body, its benefit is to damage or wear away in limited time when slide plate, it is just passable only to change slide plate 111, and the slide plate holder 112 and the tracheae 115 that converges also can continue to use, and have reduced the utilization cost, because traditional product is Trinitarian structure, slide plate 111 is bad, must all change.
This installs the slide plate of available whole piece, and is long such as 1250mm, and the also slide plate of available segment is long such as 5 each 250mm, with the latter is best, because if slide plate 111 breaks, only change the blemisher and get final product, surplus person also can use again, further saved the utilization cost, and when using whole piece, then must change entirely.
End position protecting component 120; see Fig. 4; mainly form by parts such as Connection Block 121 and easily broken caps 122; it is contained in arc angle 125 belows of ventilation bow 110; with nut 123 Connection Block 121 is fastened on the arc angle 125; Connection Block 121 is a hollow; the external tracheae in its lower left; tap into pressurized air, its upper right side screws in easily broken cap 122, and easily broken cap 122 cars have weak groove 124; in case because of the contact system fault; contact wire slides into and when running into 122 on easily broken cap, easily broken cap 122 will be from weak groove 124 fracture venting, and protection will drop into successively.
When trammel beam 132 during along with bow 110 horizontal huntings, thimble 131 will rotate with trammel beam 132 around axle, the oscillating quantity that makes the former is D, and the latter is d, and the size of d depends on trammel beam length overall L, the distance L 2 that thimble is hinged to the vent plug groove to the distance L 1 and the B of vent plug 133 grooves, when L, L2 one timing, then L1 is big more, and d is big more, after L1 also determined, the size of d was proportional to the size of D.
The left side of thimble is a vent plug 133, has sealing O type circle on it, and the right side is processed with groove, parts such as air chamber and spring.Pressurized air enters air chamber by admission port, pushes away vent plug 133 to the right with spring, withstands thimble 131, and it can not be rotated.
When slide plate 111 occurring and fall the chance failure of piece, contact wire will be stuck in the slide plate breach, and locomotive is in advancing, and bow will the teeter with contact wire, bow will pierce between contact wire and the catenary under the effect of bounce, cause bow, all serious accidents of decreasing of net.
The effect of this element is, when the bow beat cross in limited time (such as D 〉=200mm), thimble 131 amount of spin d also will cross limit (such as 〉=10mm), it will deflect away from the vent plug groove, so vent plug 133 ejects, exits, protection will drop into successively.
2, conversion subsystem (ZH)
The gas signal that this subsystem is sent detection subsystem here is converted to electric signal, and the interface of driver's control command and this fender guard also is located at herein.Its structure comprises pressure reduction relay 210, pantograph protection intermediate relay and electric control valve.
As previously mentioned, this element is the key element of gas-electric signal conversion.Its main body is a little cylinder, and middle the air extractor vent that colludes the top of shellfish connects detection subsystem in order to collude shellfish, and the air extractor vent that colludes the shellfish below connects the bow source of the gas.
When not ventilating, collude shellfish under the effect of spring force, be in the position of following stop, travel switch contact place disconnects the position.After the ventilation, colluding the shellfish upper and lower has gas simultaneously, and equalization of pressure, colludes shellfish and still locates the backstop position.When one of three elements of detection subsystem action venting, collude shellfish top air pressure and descend, collude shellfish top air residual voltage when adding spring force when dropping to less than the gas pressure power of below, collude the shellfish upward movement, remove the constrained force of travel switch, its contact is connected, and finishes gas-electric signal conversion.
The right side of cylinder is connected to flow regulating valve, and its effect is to slow down the exhaust velocity of colluding the shellfish below.
See Fig. 2, when pressure reduction relay 210 often open the interlocking closure after, the 110V DC control supply is by normal opened contact, it is electric that the intermediate relay coil is got, relay often to open interlocking closed, the coil self-locking.Simultaneously with the electric control valve coil of intermediate relay coils from parallel connection of coils also electric, the A gas circuit is brought about the desired sensation, falling the bow system for fault provides source of the gas.The normally closed interlocking of intermediate relay disconnects, and has cut off the coil power of electric control valve, and electric control valve stops B gas circuit air feed, and the gas circuit of pantograph cylinder is changeed logical atmosphere O.
The SB2 of intermediate relay often opens interlocking can deliver to " line circuit breaker is disconnected " circuit, cutting off machine overall height voltage source; The SB3 normal opened contact can be connected to the locomotive operation monitor device, the bow information of falling automatically that demonstration and record pantograph have occurred.
Intermediate relay is provided with and a plurality ofly often opens, normally closed contact, can optionally pick out.
3, bow executive subsystem (SJ) falls in accident, sees Fig. 7:
This subsystem contains gas control shutoff valve 310, by pass valve 320 and exhaust shutter 330.
When the DCb of above-mentioned electric control valve coil get electric after A gas circuit (promptly fall automatically bow gas circuit) bring about the desired sensation, bring about the desired sensation in the left side of gas control shutoff valve, colluding shellfish moves to right, shutoff valve 331 moves to right, and opens valve seat, makes the air pressure of former bow cylinder at first back down the spool of by pass valve 320, lead to atmosphere, this gas circuit bore is big, so exhaust velocity is fast, pantograph is fallen rapidly.After air pressure dropped to certain value in the cylinder, by pass valve 320 was closed, and ended big gas circuit exhaust, and residual air is discharged into atmosphere slowly by the shrinkage cavity of exhaust shutter 330, slows down exhaust velocity, in case pantograph undue underframe that impacts when falling.Suitably regulate the trimming screw of by pass valve 320 and exhaust shutter 330, can change the speed and the characteristic of falling bow.
4, source of the gas subsystem (QY) is seen Fig. 1.
This subsystem is made up of valve 440, filtering pressure reducing valve 410, High-Voltage Insulation pipe 430 and 420 4 elements of flow regulating valve.
The effect of valve 440 has two: one, when detection subsystem etc. has fault, closes source of the gas; The 2nd, when surveying air-tightness as the usefulness of separaant system.
High-Voltage Insulation pipe 430 is to connect the compressed-air actuated pipeline of high and low pressure side, and it should be able to bear the relevant examination of power frequency high voltage of 25KV, and material should be pure, in case surface creepage.
It is other that flow regulating valve 420 is connected in parallel on pressure reduction relay 210, before its effect has been set forth in.
5, normal lifting bow control subsystem (ZJ), see Fig. 8:
This subsystem is by flow regulating valve 510, quick exhaust valve 520 and rise bow valve 530 three element fast and forms, and to bend valve 530 itself be the fabricate block of a check valve 531 and a pressure limiting cut-off valve 532 and rise fast.
The liter bow of this device development is adjusted principle and is: when rising bow, the B gas circuit is brought about the desired sensation, back down the spool of check valve 531, enter plunger 533 belows of pressure limiting cut-off valve 532, serial aperture (its ventilation gross area is equal to the big hole area on the plunger 533) by on macropore on it and the plunger sleeves 534 all opened enters cylinder, because of gas circuit big, so initial air inlet is fast, the initial liter bent soon.When air pressure rises to spring force greater than plunger 533 tops, move on the plunger 533, close the aperture on the plunger sleeve 534 one by one, up to Close All.After this, the pressurized air among the path B only slowly enters cylinder by 510 shrinkage cavities of above-mentioned flow regulating valve, and the pantograph later stage rises bow slowly, to avoid too impacting contact system.
The technical characterstic that should rise bow valve 530 fast is: have serial aperture on the plunger sleeve 534, rather than only open a macropore, its purpose is: when moving on the plunger 533, be to close aperture one by one, intake velocity progressively reduces.If only open a macropore, when moving on the plunger 533, will close moment, will cause that in rising the bow process pantograph cylinder colludes the bounce-back of shellfish and the bounce-back of pantograph collector head.
Aspect supporting, the present invention adopts the support pattern of " circle spring+damping ".As shown in Figure 9: on two slide plates of wide bow, each has adorned a pair of spring case 611 and an air valve damper 612, makes it respectively become the draw runner of an independent suspension.Be characterized in, a bow that generally adopts is decomposed into two relatively independent sub-bows, their shared shelves rise, and in other words, the reduction quality of sub-bow only is equivalent to original half---the Practical significance of this mode that Here it is.
The present invention has adopted the triple safe safety method, and the horizontal beat of slide plate protection, bow corner protection and bow is crossed the limit protection, and for the bow net safe operation provides guarantee, and cost is low than similar products at home and abroad.Thereby has a very high promotional value.
Claims (8)
1, a kind of block of bow collector of electric locomotive is scraped the bow fender guard, it is characterized in that: this device comprises detection subsystem, signal conversion subsystem, emergency bow-lowering subsystem, pneumatic subsystem for bow and normal bow-lifting subsystem:
Detection subsystem comprises, ventilation bow (110), end position protecting component (120) and displacement pickup (130);
The signal conversion subsystem comprises pressure reduction relay (210), pantograph protection intermediate relay and 3 position-5 way electric control valve;
Emergency bow-lowering subsystem comprises gas control shutoff valve (310), by pass valve (320) and exhaust shutter (330);
Pneumatic subsystem for bow comprises that filtering pressure reducing valve (410), flow regulating valve (420), High-Voltage Insulation pipe (430), valve (440) quaternary part formed;
The subsystem of normal lifting bow comprises quick liter bow valve (530), quick exhaust valve (520) and flow regulating valve (510).
2, scrape the bow fender guard according to right 1 described a kind of block of bow collector of electric locomotive; it is characterized in that: ventilation bow (110) is made up of slide plate (111), slide plate holder (112), vent plug cover (113), vent plug (114), the tracheae elements such as (115) that converges, and the slide plate (111) and the tracheae (115) that converges are screwed in slide plate holder (112).
3, scrape the bow fender guard according to right 1 described a kind of block of bow collector of electric locomotive; it is characterized in that: remittance tracheae (115) is equipped with in slide plate (111) below of ventilation bow (110); with vent plug (114) sealing that has O type circle, slide plate (111) is pressed thereon on the pore of remittance tracheae (115).
4, scrape the bow fender guard according to right 1 described a kind of block of bow collector of electric locomotive; it is characterized in that: end position protection (120) element; mainly form by Connection Block (121) and easily broken cap parts such as (122); it is contained in the arc angle below of ventilation bow (110); Connection Block (121) is fastened on the arc angle of ventilation bow (110) with nut (123), easily broken cap (122) below car has weak groove (124).
5, scrape the bow fender guard according to right 1 described a kind of block of bow collector of electric locomotive; it is characterized in that: the top of described displacement pickup (130) is thimble (131); captive joint with the trammel beam (132) of pantograph by axle; the bottom links to each other with the push rod of pantograph by hinge; this hinge for can be considered Immobile rigid body, and vertically is rotary in reality on the horizontal direction of reality.
6, scrape the bow fender guard according to right 1 described a kind of block of bow collector of electric locomotive; it is characterized in that: described pressure reduction relay (210) main body is a little cylinder; middle for colluding shellfish, the air extractor vent that colludes the shellfish top connects detection subsystem, and the air extractor vent that colludes the shellfish below connects the bow source of the gas.
7, scrape the bow fender guard according to right 1 described a kind of block of bow collector of electric locomotive; it is characterized in that: described quick liter bow valve (530) is the fabricate block of a check valve (531) and a pressure limiting cut-off valve (532), has several apertures on the plunger plunger sleeve (533) of pressure limiting cut-off valve (532).
8, scrape the bow fender guard according to right 1 described a kind of block of bow collector of electric locomotive, it is characterized in that: described slide plate (111) supports with spring (611) and air valve damper (612) mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02115020 CN1291875C (en) | 2002-04-03 | 2002-04-03 | Antiscratch protector for collector bow of electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02115020 CN1291875C (en) | 2002-04-03 | 2002-04-03 | Antiscratch protector for collector bow of electric locomotive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1390733A CN1390733A (en) | 2003-01-15 |
| CN1291875C true CN1291875C (en) | 2006-12-27 |
Family
ID=4743413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02115020 Expired - Fee Related CN1291875C (en) | 2002-04-03 | 2002-04-03 | Antiscratch protector for collector bow of electric locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1291875C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553815A (en) * | 2014-12-04 | 2015-04-29 | 南车株洲电力机车有限公司 | Electric locomotive and pantograph |
| CN105416076A (en) * | 2015-12-11 | 2016-03-23 | 北京赛德高科铁道电气科技有限责任公司 | Pantograph control device and method |
| CN105539158A (en) * | 2015-12-14 | 2016-05-04 | 北京赛德高科铁道电气科技有限责任公司 | Pantograph control device and method |
| CN111497934A (en) * | 2020-04-24 | 2020-08-07 | 山推工程机械股份有限公司 | Steering brake system and steering brake control method |
| DE102021206840A1 (en) | 2021-06-30 | 2023-01-05 | Siemens Mobility GmbH | Current collector for an electrically or hybrid-electrically driven road vehicle and road vehicle with such a current collector |
| DE102021207225A1 (en) | 2021-07-08 | 2023-01-12 | Siemens Mobility GmbH | Current collector for an electrically or hybrid-electrically driven road vehicle and road vehicle with such a current collector |
-
2002
- 2002-04-03 CN CN 02115020 patent/CN1291875C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1390733A (en) | 2003-01-15 |
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