CN207502641U - A kind of plough band rolls single phase power supply experimental system - Google Patents
A kind of plough band rolls single phase power supply experimental system Download PDFInfo
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- CN207502641U CN207502641U CN201721675746.8U CN201721675746U CN207502641U CN 207502641 U CN207502641 U CN 207502641U CN 201721675746 U CN201721675746 U CN 201721675746U CN 207502641 U CN207502641 U CN 207502641U
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Abstract
The utility model discloses a kind of plough bands to roll single phase power supply experimental system, belongs to traction power supply experimental technique field.The outer rim of wheel hub is equipped with wheeled contact band, and the cyclic annular return current rail that it sets the axial insulation wheel rim of annular groove by both sides and the annular groove bottom of side is equipped with looply connected power supply rail, opposite side annular groove bottom are equipped with collectively forms；It is made of by electric plow trolley pole, reflux bar and spring, trolley pole and the reflux L-shaped structure of bar, positioned opposite, head end is hinged respectively with crossbeam；The end of trolley pole is contacted with looply connected power supply rail, and the end for the bar that flows back is contacted with cyclic annular return current rail；Single-phase voltage regulating transformer, first are formed single phase power supply access by the first trolley pole of electric plow and the first reflux bar, the looply connected power supply rail of wheeled contact band and cyclic annular return current rail, second by the second trolley pole of electric plow and the second reflux bar, single three-phase governing system；The three-phase output end connection three phase electric machine of single three-phase governing system, powers to three phase electric machine.
Description
Technical field
The utility model is related to main line railways and city rail traction power supply experimental technique field.
Background technology
The Traction networks of existing main line railway use overhead contact line+city rails Traction networks such as rail form, subway, light rail
Using overhead contact line+rail form or conductor rail (conductor rail)+rail form, both by the use of rail as traction current
Return current rail, factors due to technology or economically restrict, and rail not exclusively electrically isolates from the earth, and therefore, traction current will be through
Rail forms stray electrical current, also referred to as fan's stream to the earth leakage, diffusion.Particularly city rail traction power supply uses DC system, it
The stray electrical current of generation will all generate electrification to the facilities such as bar construction in railway roadbed bar construction, tunnel and metal pipe line along the line
Corrosion is learned, so as to influence the safety of these structures and metallic facility and service life.In this regard, take drainage protection, rail
Drop resistance, stray current collection and pipeline such as apply at the stray current corrosions safeguard procedures outside, there is a larger fund input, but still cannot be from
Fundamentally eliminating stray electrical current and its long-term corrosion influences.Mains alternating current electric railway is inhaled using power supply modes such as AT, BT
Upper fan's stream, but can not all eradicate.Meanwhile rail return current will form step voltage to the potential difference that ground generates, it is possible to threaten
Personal safety, it is also desirable to take the necessary precautionary measures.
In addition, overhead contact line+rail form or conductor rail+rail form are required for occupying larger private space, example
It such as needs to increase tunnel cross-section, and then increase difficulty of construction and cost in tunnel.
Contact net is divided into rigid suspension OCS and rigid contact net.Main line railway is mostly using pantograph and rigid suspension OCS current collection
Mode, city rail is other than using pantograph and rigid suspension OCS Current Collecting Methods, also using pantograph and rigid contact net collection
Electric mode, in addition, also shoegear contacts Current Collecting Methods with conductor rail.This pantograph and contact net or shoegear and conductor rail
Contact Current Collecting Methods be also referred to as monopole Current Collecting Methods, and the current collection of another pole be by be equipped with the Railway wheelset of earthing or grounding means with
Rail is in rolling contact completion.Rigid suspension OCS belongs to flexiblesystem with pantograph system, and conductor rail connects with shoegear or rigidity
It touches net and pantograph system is then rigid system.Flexiblesystem usually in addition to the contact force for bearing pantograph, still suffers from very big
Tension, and rigid system is solely subjected to contact force, hardly bearing tension force.Compared to flexiblesystem, rigid system has structure letter
It is single, current-carrying capacity is big, the remarkable advantages such as reliability and durability, but because structure type, hang, span length and with pantograph (by electricity
Boots) power performance matching problem do not solve very well, meanwhile, train generate in operation it is mobile can by pantograph or by
Trolley is directly delivered to contact net or conductor rail, influences pantograph and the contact electrical collector of contact net or shoegear with conductor rail
Can, the influence of these factors is especially pronounced in high-speed cruising, so as to seriously constrain the good performance of rigid system advantage, removes
It is Austrian to have been reached except 302km/h up to 230km/h, test speed using the rigid suspended main line railway speed of service,
He there is no example of the high-speed railway using rigid system.
In addition, contact net or conductor rail used in existing main line railway and city rail belong to suspension installation, circuit is first-class
It imitates in overhead line, and pantograph belongs to monopole Current Collecting Methods with the contact Current Collecting Methods of contact net or shoegear with conductor rail.
Applicant is it has been suggested that a kind of " rail traffic powered construction (application number：201610213944.6) ", power supply
Rail and return current rail also belong to rigid system, but power rail and return current rail (supply lines on circuit) do not resuspend installation but along exhausted
Edge pedestal is fixedly mounted, and cable is equivalent on circuit, and power performance is no longer restricted by original structure and span, is connect to be excellent
Tactile current collection provides guarantee.On the basis of applying herein, it is (a kind of that applicant further proposes a kind of bipolar contact current collection
Train current collecting equipment 2016211068036), it can dissolve the transverse vibration that train generates in operation and vertical tremor to current collection
The harmful effect of system keeps itself good contact performance, the advantage of rigid system is made more preferably to be played, is more suitable for high-speed iron
Road uses.Obviously, establishing test wire accordingly not only needs investment, but also it is also a problem to need test wire how long.
A kind of experimental system contacted with power supply and by the bipolar current collection of electric plow of the application research, to overcome as above defect,
Realize that power supply and current collection are very necessary at a high speed.
Utility model content
The purpose of this utility model is to provide a kind of plough band and rolls single phase power supply experimental system, it can efficiently solve simulation
It contacts with power supply and the working condition by electric plow Current Collecting Methods and contact performance problem.
The purpose of this utility model is achieved through the following technical solutions：
A kind of plough band rolls single phase power supply experimental system, including single-phase voltage regulating transformer, inlet wire alternating-current switch, three-phase electricity
Machine, single three-phase governing system, the transmission shaft of three phase electric machine are coaxially fixed with wheel hub, and the outer rim of wheel hub is equipped with wheeled contact band, it
By both sides, the insulation wheel rim of axial annular groove and the looply connected power supply rail of side annular groove bottom setting, the setting of opposite side annular groove bottom are set
Cyclic annular return current rail collectively form；First by the first trolley pole of electric plow and the first reflux L-shaped structure of bar, with respect to cloth
It puts, head end is hinged respectively with crossbeam；The middle part of first trolley pole and the first reflux bar is equipped with the spring that both ends are insulating materials；
Single-phase voltage regulating transformer primary side sets inlet wire alternating-current switch, secondary side two-terminal be connected respectively to the first trolley pole head end and first time
The head end of flow post；The end of first trolley pole is contacted with looply connected power supply rail, and the end of the first reflux bar is contacted with cyclic annular return current rail；
It second is supplied respectively with ring-type by the second trolley pole end of electric plow and the second reflux bar end with first by electric plow structure is identical
Electric rail and cyclic annular return current rail contact；Second by the second trolley pole head end of electric plow and the second single three-phase speed governing of reflux bar head end connection
The single phase input of system；Inlet wire alternating-current switch, single-phase voltage regulating transformer, first are flowed back by the first trolley pole of electric plow and first
Bar, the looply connected power supply rail of wheeled contact band and cyclic annular return current rail, second are by the second trolley pole of electric plow and the second reflux bar, single three
Phase governing system forms single phase power supply access；The three-phase output end connection three phase electric machine of single three-phase governing system, to three phase electric machine
Power supply.
In I-shaped, the side annular groove bottom laying of I-shaped waist is cyclic annular to supply the insulation wheel rim axial cross section
Electric rail, the cyclic annular return current rail of opposite side annular groove bottom laying.
Described first by electric plow by electric plow include by first trolley pole hinged with crossbeam, first reflux bar and they in
The spring of portion's connection is formed.
Described second is included being connected by second trolley pole hinged with crossbeam and the second reflux bar and their middle parts by electric plow
The spring connect is formed.
The crossbeam is insulator, is bolted and is fixed with stent；The crossbeam can be along the axial direction tune of transmission shaft
Whole first by the first trolley pole of electric plow and first reflux bar head end position, to simulate the vibrations of train or so range.
The transmission shaft of the three phase electric machine drives the wheel hub and colyliform contact band to rotate together.
The list three-phase governing system with measure and control device, measure and control device control and detect the start and stop of the three phase electric machine with
Operating status.
The insulation wheel rim has certain intensity, i.e., certain rigidity and plasticity usually select fiberglass to be advisable.
The three phase electric machine can also drag another three phase electric machine power generation, and electric energy is fed back at inlet wire alternating-current switch,
To simulate high-power contact by fluidity energy.
The operation principle of the utility model is：Function according to flat contact band makes wheeled contact band, is taken turns including insulation
Rim and looply connected power supply rail, cyclic annular return current rail；The insulation wheel rim of wheeled contact band is mounted on the outer rim of wheel hub, insulation wheel rim both sides
Annular groove installs cyclic annular power rail and cyclic annular return current rail respectively；It is made of by electric plow trolley pole, reflux bar, spring, trolley pole, reflux
The head end of bar is mounted on crossbeam, and end contacts respectively with looply connected power supply rail, cyclic annular return current rail；By it is wheeled contact band rotation with
It is fixed to be rubbed by electric plow contact by electricity, to simulate the flat contact band between two tracks on railway roadbed with being mounted in train
The sliding friction by electric plow in the middle part of power truck end takes electric situation；The starting and stopping of governor system control three phase electric machine are adjusted
Speed contacts band and the contact condition by electric plow to simulate under different operating modes；Crossbeam can be along axially adjustable the first of transmission shaft
By the position of electric plow, to simulate the vibrations of train or so range.
Compared with prior art, the beneficial effects of the utility model are：
1st, the utility model can be simulated to use and be contacted with power supply with the working condition by the bipolar Current Collecting Methods of electric plow with connecing
Touch performance.
2nd, the utility model can carry out the experiment of higher speed.
3rd, the utility model is technologically advanced, reliable, easy to implement.
Description of the drawings
Fig. 1 is the structure diagram of the utility model embodiment.
Fig. 2 is the circuit diagram of the utility model embodiment.
Specific embodiment
The utility model will be further described with reference to the accompanying drawings and detailed description.
Fig. 1 shows that a kind of specific embodiment of the utility model is：A kind of plough band rolls single phase power supply experimental system,
The transmission shaft 2 of three phase electric machine 1 is coaxial fixed with wheel hub 3, and the outer rim of wheel hub 3 is equipped with wheeled contact band；Wheeled contact band includes exhausted
Edge wheel rim 4 and looply connected power supply rail 5 and cyclic annular return current rail 6；4 both sides of wheel rim insulate equipped with axial annular groove, the annular groove bottom of one side
Cyclic annular return current rail 6 is equipped with equipped with looply connected power supply rail 5, opposite side annular groove bottom, they collectively form wheeled contact band；First current collection
Bar 7 and first flows back the L-shaped structure of bar 8, and positioned opposite, head end is hinged with crossbeam 9 respectively, the first trolley pole 7 and the
The middle part of one reflux bar 8 is equipped with the spring 16 that both ends are insulating materials, they collectively form first by electric plow；First trolley pole 7
End contacted with looply connected power supply rail 5, first reflux bar 8 end with ring-type return current rail 6 contact；With first by electric plow structure phase
Same second is flowed back by 12 end of the second trolley pole of electric plow and the second 13 end of reflux bar with looply connected power supply rail 5 and ring-type respectively
Rail 6 contacts.
4 axial cross section of the insulation wheel rim is in I-shaped, the side annular groove laying looply connected power supply of I-shaped waist
Rail 5, the cyclic annular return current rail 6 of opposite side annular groove laying.
The insulation wheel rim 4 has certain intensity, i.e., certain rigidity and plasticity usually select fiberglass to be advisable.
The crossbeam 9 is insulator, is bolted and is fixed with stent 15；Crossbeam 9 can be adjusted along the axial direction of transmission shaft 2
The whole position by electric plow trolley pole and reflux bar head end, to simulate the vibrations of train or so range.
Described second by electric plow with described first by electric plow mechanical realization it is identical.
The three phase electric machine can also drag another three phase electric machine power generation, and electric energy is fed back at inlet wire alternating-current switch,
To simulate high-power contact by fluidity energy.
Fig. 2 is the circuit diagram of the utility model embodiment.Inlet wire alternating-current switch 11, single-phase voltage regulating transformer 10,
One the first trolley pole 7 and the first reflux bar 8, the wheeled looply connected power supply rail 5 for the contacting band and cyclic annular return current rail 6, second by electric plow
Single phase power supply access is formed by the second trolley pole 12 of electric plow and the second reflux bar 13, single three-phase governing system 14；Single three-phase tune
The three-phase output end connection three phase electric machine of speed system, powers to three phase electric machine 1.
With measure and control device, measure and control device controls and detects start and stop and the fortune of three phase electric machine the list three-phase governing system 14
Row state.
Claims (5)
1. it is a kind of plough band roll single phase power supply experimental system, including single-phase voltage regulating transformer, inlet wire alternating-current switch, three phase electric machine,
Single three-phase governing system, it is characterised in that：The transmission shaft (2) of three phase electric machine (1) is coaxial fixed with wheel hub (3), outside wheel hub (3)
Edge is equipped with wheeled contact band, it sets the insulation wheel rim (4) of axial annular groove and the cyclic annular of side annular groove bottom setting to supply by both sides
Electric rail (5), the cyclic annular return current rail (6) of opposite side annular groove bottom setting collectively form；First by the first trolley pole (7) of electric plow and
One reflux bar (8) L-shaped structure, positioned opposite, head end is hinged with crossbeam (9) respectively；First trolley pole (7) and first
The middle part of reflux bar (8) is equipped with the spring (16) that both ends are insulating materials；Single-phase voltage regulating transformer (10) primary side sets inlet wire exchange
It switchs (11), secondary side two-terminal is connected respectively to the head end of the first trolley pole (7) and the head end of the first reflux bar (8)；First collection
The end of electric pole (7) is contacted with looply connected power supply rail (5), and the end of the first reflux bar (8) is contacted with cyclic annular return current rail (6)；With
One by electric plow structure it is identical second by the second trolley pole (12) end of electric plow and second reflux bar (13) end respectively with ring
Shape power rail (5) and cyclic annular return current rail (6) contact；Second by the second trolley pole (12) head end of electric plow and the second reflux bar (13)
The single phase input of the single three-phase governing system (14) of head end connection；；Inlet wire alternating-current switch (11), single-phase voltage regulating transformer (10),
First by the first trolley pole (7) of electric plow and the first reflux bar (8), the looply connected power supply rail (5) of wheeled contact band and cyclic annular reflux
Rail (6), second are formed single-phase confession by the second trolley pole (12) of electric plow and the second reflux bar (13), single three-phase governing system (14)
Electric pathway；The three-phase output end connection three phase electric machine (1) of single three-phase governing system (14), powers to three phase electric machine (1).
2. a kind of plough band according to claim 1 rolls single phase power supply experimental system, it is characterised in that:The insulation wheel rim
(4) axial cross section is in I-shaped, and looply connected power supply rail (5), another side ring are laid in the side annular groove bottom of I-shaped waist
The cyclic annular return current rail (6) of trench bottom laying.
3. a kind of plough band according to claim 1 rolls single phase power supply experimental system, it is characterised in that:Described first by electricity
Plough is made of the spring (16) that the first trolley pole (7) hinged with crossbeam (9), the first reflux bar (8) and their middle parts are connect.
4. a kind of plough band according to claim 1 rolls single phase power supply experimental system, it is characterised in that:Described second by electricity
Spring (16) structure that plough is connect by the second trolley pole (12) hinged with crossbeam (9) and the second reflux bar (13) and their middle parts
Into.
5. a kind of plough band according to claim 1 rolls single phase power supply experimental system, it is characterised in that:The crossbeam (9)
For insulator, it is bolted fixed with stent (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721675746.8U CN207502641U (en) | 2017-12-05 | 2017-12-05 | A kind of plough band rolls single phase power supply experimental system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721675746.8U CN207502641U (en) | 2017-12-05 | 2017-12-05 | A kind of plough band rolls single phase power supply experimental system |
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| CN207502641U true CN207502641U (en) | 2018-06-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966628A (en) * | 2017-12-05 | 2018-04-27 | 西南交通大学 | One kind plough band rolls three phase supply experimental system |
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2017
- 2017-12-05 CN CN201721675746.8U patent/CN207502641U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966628A (en) * | 2017-12-05 | 2018-04-27 | 西南交通大学 | One kind plough band rolls three phase supply experimental system |
| CN107966628B (en) * | 2017-12-05 | 2023-09-15 | 西南交通大学 | Plough belt rolling three-phase power supply experimental system |
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