CN108423030A - A kind of hump yard electromagnetic vehicle retarder system device - Google Patents
A kind of hump yard electromagnetic vehicle retarder system device Download PDFInfo
- Publication number
- CN108423030A CN108423030A CN201810181211.8A CN201810181211A CN108423030A CN 108423030 A CN108423030 A CN 108423030A CN 201810181211 A CN201810181211 A CN 201810181211A CN 108423030 A CN108423030 A CN 108423030A
- Authority
- CN
- China
- Prior art keywords
- system device
- current
- retarder system
- hump yard
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K7/00—Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
- B61K7/02—Track brakes or retarding apparatus
- B61K7/10—Track brakes or retarding apparatus electrodynamic
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
A kind of hump yard electromagnetic vehicle retarder system device, including wheel pair, it is characterized in that：It further includes power supply, electromagnet, surveys magnetic inductor, the power supply is made of multistage transformer, rectifier, regulated power supply, the power supply is the direct current for three-phase alternating current being become smoothly adjusting electric current, the electromagnet is made of yoke and magnet exciting coil, the magnet exciting coil is connected with direct current, and the magnet exciting coil and the wheel have air-gap separation between.The present invention have the characteristics that safe, control accuracy is high, controllability is strong, without abrasion, service life is long and noiseless and pollution.
Description
Technical field
The invention belongs to hump yard speed governing fields, more particularly to a kind of hump yard electromagnetic vehicle retarder.Electromagnetism
Deceleration device can will replace machinery as hybrid vehicle and the auxiliary braking of magnetic suspension train in hump speed-regulating field
Type deceleration device.
Background technology
Fast-developing, the marshaling yard sorting pivot as goods train closely bound up with railway freight of China's economy
Knob is increasingly paid close attention to by all circles, and hump yard field is the important component of marshalling yard, and effect is the slope using hump itself
Degree allows the car team for reaching same track to utilize its own gravity rolling, into targeting area to safe connection, but in hump rolling
The speed of car team needs stringent management and control in the process, otherwise will appear even not hang or exceed the speed limit and breaks the consequence of vehicle.At this stage I
State's part Large-sized Marshalling Yard has been carried out hump rolling automation, and used speed-regulating tool is mostly clamp reducer and deceleration
Top, clamp reducer are arranged in rolling section, primarily serve management and control car team in the muzzle velocity of rolling section, belong to spacing braking.And
Deceleration top is typically located at the targeting area of marshalling yard tail portion, and effect is to regulate and control the speed of car team again, has reached safe connection
Purpose belongs to purpose braking.
Using clamp reducer, there are serious security risks for spacing braking institute at present, in real operation, often adopt
The strategy of tail is blocked with head is put, but when tail portion car team zero load, brake rating error will occur, causes wheel to being subtracted by clamp type
Fast device squeezes out the accident of off-line, and reason goes out in the deceleration principle of its own.Clamp reducer mainly squeezes vehicle by clamping plate
The wheel pair of row makes the rotating speed of wheel pair decline to play the role of deceleration to generate friction.Wheel is to being squeezed the excessive damage of pressure
The coordinate force of wheel shaft is squeezed for a long time when needing longer alleviation after so that wheel is started serious wear, and clamp reducer
Between, break-up capacity of hump and disintegration efficiency are influenced, the serious transport capacity for restricting railway.Friction also will produce much noise and have
Evil dust pollution, is unsatisfactory for the environmental requirement of country.For this purpose, new car retarder should be developed, realize that safe and reliable and nothing is made an uproar
Sound operating environment.
Invention content
The technical problem to be solved in the invention is：A kind of hump yard electromagnetic vehicle retarder system device is provided, it
Have the characteristics that safe, control accuracy is high, controllability is strong, without abrasion, service life is long and noiseless and free of contamination.
Technical solution of the invention is：A kind of hump yard electromagnetic vehicle retarder system device, including wheel pair,
It is characterized in：It further includes power supply, electromagnet, surveys magnetic inductor, and the power supply is by multistage transformer, rectifier, regulated power supply group
At the power supply is the direct current for three-phase alternating current being become smoothly adjusting electric current, and the electromagnet is by yoke and magnet exciting coil
Composition, the magnet exciting coil are connected with direct current, and the magnet exciting coil and the wheel have air-gap separation between.
Intert iron core among the magnet exciting coil with increasing magnetic field.
The survey magnetic inductor is used for detection speed, time, size of current and magnetic induction intensity, is digital display type revolution counter.
It is described to survey magnetic inductor also comprising the Tesla meter for check.
The magnet exciting coil forms exciting current after being connected with direct current, which is 10~20A.
The air-gap separation is 5~15mm.
The present invention has the following advantages that compared with prior art：1, this contactless hump yard electromagnetic vehicle slows down
Device needs to move up and down braking rail clip wheel to rubbing, also unlike the only flushing device damage of deceleration top unlike clamp reducer
Wheel pair, therefore improve the service life of vehicle wheel pair.2, since electromagnetic retarder is contactless braking mode, braking process
Wheel of the inner body of middle retarder substantially without relative movement and vehicle is to also without friction, so ensure that the use of retarder
The time limit is decidedly superior to clamp reducer, and simple structure makes the cost of installation and maintenance cost relatively also few very much, simultaneously
The problems such as can also thoroughly solving noise and pollution.3, the unique extremely simple structure of this electromagnetic retarder ensure that its shape can be random
Adjusting, or even on the curve circuit, clamp reducer requires the linear type of circuit in contrast, restricts significantly in this way
The scope of application of retarder causes circuit waste in part vacant.4, this electromagnetic retarder is not necessarily to remission time, is substantially powered
It just brakes at once, slows down and terminate power-off, without temporal lag, reduce remission time.
Description of the drawings
Fig. 1 is hump yard electromagnetic vehicle retarder system control figure of the present invention.
Fig. 2 is the magnetic field schematic diagram of the electromagnetic retarder of the present invention.
Fig. 3 is the electromagnetic retarder structural schematic diagram of the present invention.
Fig. 4 is the electromagnetic retarder cross section structure schematic diagram of the present invention.
Fig. 5 is the electromagnetic retarder overlooking structure diagram of the present invention.
Fig. 6 is the electromagnetic retarder side structure schematic diagram of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, the present invention will be described in further detail, but is not meant to the scope of the present invention
Limitation.
The present invention deceleration principle be：Direct current is passed to magnet exciting coil, generates constant magnetic field among yoke, in yoke
Between generate constant magnetic field, the Railway wheelset of rotation moves quickly through magnetic field, and due to Lenz's law, in wheel, there are many reversed on
Small induced excitation electric current hinders to take turns the variation in centering magnetic field, and current direction can be judged with right-hand screw rule, be taken turns to speed
Bigger changes of magnetic field is faster, and this reversed exciting current of generation is bigger, and this small exciting current also belongs to one kind of electric current,
Therefore it is known that the direction of the power of exciting current generation, analysis result find what this exciting current generated according to left hand rule
Power can hinder wheel to operation, and here it is the deceleration principles of electromagnetic eddy retarder.
Fig. 1 is hump yard electromagnetic vehicle retarder system control figure of the present invention, as shown, when carrying out eddy-current brake
Wheel just has vortex generation and is taking turns internally, take turns and be internally vortexed generated magnetic field to being rotated in the magnetic field that electromagnetic mechanism generates
Lorentz force is produced when interacting with excitation field, Lorentz force is exactly the brake force of eddy-current brake, reflection to wheel pair
Upper is exactly that the rotating speed of wheel pair declines, and by calculating wheel to the speed of speed, can obtain the size of eddy-current brake power, pass through adjusting
Parameter realizes that hump yard electromagnetic vehicle slows down to control the size of brake force, as long as measuring exciting current, so that it may to pass through
Relation derivation comes out.Ensure that wheel disk rotating speed is constant, the electromagnetic mechanism magnetic pole of retarder is vortexed by change and takes turns the gas between
Gap spacing size can measure speed of the wheel to reduction of speed, just obtain eddy-current brake power size and brake apparatus magnetic pole to wheel to sky
Relationship between gas size of gaps.Ensure that other parameters are constant in experiment, by the rotating speed of regulating wheel pair, while measuring excitation electricity
Stream, so that it may with by being derived from eddy-current brake power size, and analyze and obtain eddy-current brake power size and brake disc rotary rpm
Relationship between size.Ensure ceteris paribus, adjustment vortex retarder electromagnetic mechanism magnet exciting coil in exciting current it is big
It is small, armature supply can be measured under different exciting size of current, just obtain eddy-current brake power size and retarder electromagnetic structure
Relationship between exciting current size.
Fig. 2 is the magnetic field schematic diagram of the electromagnetic eddy retarder of the present invention.As shown, electromagnetic retarder is projected in train
Wheel is an arc-shaped region I, from Maxwell equation Φ=BS to the magnetic pole dash area on wheel rimρIn, area is calculated
Magnetic flux inside domain, SρIt indicates the magnetic pole area being projected on wheel rim, is also S in air gap area of the wheel pair between magnetic poleρ,
The vortex demagnetizing effect that the wheel rim surface of the electric current and wheel pair that are provided by the magnet exciting coil of electromagnetic eddy retarder generates is common
Effect can obtain electromagnetic eddy retarder and rotate the magnetic induction density B of the air gap between wheel rim after processing.Wheel rim rotates
Border circular areas I in the process, internal magnetic flux phi are constantly changing, it is illustrated that position I → II → III may be considered it
Change procedure, by Φ=BSρCos ω t rules change, then magnetic flux size, which is constantly increasing, to be reduced.
Border circular areas I is considered as by many a width being dr, and radius r, thickness as shown in Figure 3 is the magnetic conduction of Δ h
Cylinder forms, then is by the magnetic flux of this cylinder：
Φ=π r2Bcosωt
Wherein, NρFor number of magnetic pole pairs, electromagnetic eddy Design of Speed Reducer number of magnetic pole pairs are 3；The π of ω=2 NρN/60 becomes for magnetic field
The angular speed of change, unit rad/s；N is rotating speed, unit r/min.
When magnetic flux changes, generated induced electromotive force ε is on cylinder：
ε=d Φ/dt=π r2Bsinωt
The resistance of this magnetic conduction cylinder is：
2 π r/ Δs hdr of dR=ρ
Vortex on train wheel rim, the effective current on magnetic conduction cylinder are：
Ie=ε/dR=Δ hB ω sin ω t
Then the instantaneous power on magnetic conduction cylinder is：
DP=ε2/ dR=π Δs hB2ω2sin2ωtr3dr/2ρ
After wheel rim is by an electromagnetic eddy retarder, yoke can project 6 such border circular areas on wheel rim, therefore total
Braking power is：
P=6Pe=3S2 PΔhB2ω2/8πρ
Fig. 3 is electromagnetic retarder structure chart of the present invention, as shown in the figure.Hump yard rolling track both sides are respectively by the poles S, N
It is extremely alternate with each other, and it is then extremely opposite by the poles S, N in the magnetic pole of retarder both sides.Vortex is carried out during train rolling in this way to subtract
When fast, Railway wheelset passes through in the magnetic field that retarder generates, and the magnetic circuit in train wheel rim just will produce a large amount of vortex, and whirlpool
Stream generates interaction force with magnetic field again, to make train obtain huge brake force.
Electromagnetic eddy technology of the present invention is applied in hump skipping area, and generally use buries the mode being placed under roadbed, in this way
Electromagnetic coil would not stop that car team is advanced.The quantity that roadbed underlying space bigger can place magnet exciting coil is also more, to
So that brake force bigger slowing effect is more preferable.In use, the magnet exciting coil of lower section is given to lead to direct current first, one can be thus formed
A metastable magnetic field environment, when the wheel of skating vehicle is to by this magnetic field environment, the wheel fly-cutting magnetic line of force, by
In rolling stock wheel to being all high permeability material, therefore eddy current can be formed on the surface of wheel pair, due to whirlpool from microcosmic
Electric current is in inside stationary magnetic field, so being acted on by power, shows that it is exactly resistance macroscopically to see, this resistance is actually
Generate in vehicle wheel to upper, the heat of eddy current lift also can following vehicle process naturally dissipate cooling, which offers a saving one
The process of road heat dissipation.Fewer from process for mechanical design angle, the stability of product will be better, it is not easy to mistake occurs.
Claims (6)
1. a kind of hump yard electromagnetic vehicle retarder system device, including wheel pair, it is characterized in that：It further includes power supply, electromagnetism
Iron surveys magnetic inductor, and the power supply is made of multistage transformer, rectifier, regulated power supply, which is that three-phase alternating current is become
Can smoothly to adjust the direct current of electric current, the electromagnet is made of yoke and magnet exciting coil, and the magnet exciting coil is connected with direct current
Electricity, the magnet exciting coil and the wheel have air-gap separation between.
2. a kind of hump yard electromagnetic vehicle retarder system device according to claim 1, it is characterized in that：It is encouraged described
Intert iron core among magnetic coil with increasing magnetic field.
3. a kind of hump yard electromagnetic vehicle retarder system device according to claim 1, it is characterized in that：The survey magnetic
Inductor is used for detection speed, time, size of current and magnetic induction intensity, is digital display type revolution counter.
4. a kind of hump yard electromagnetic vehicle retarder system device according to claim 3, it is characterized in that：The survey magnetic
Inductor also includes the Tesla meter for check.
5. a kind of hump yard electromagnetic vehicle retarder system device according to claim 1, it is characterized in that：The excitation
Coil forms exciting current after being connected with direct current, which is 10~20A.
6. a kind of hump yard electromagnetic vehicle retarder system device according to claim 1, it is characterized in that：The air gap
Spacing is 5~15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810181211.8A CN108423030A (en) | 2018-03-06 | 2018-03-06 | A kind of hump yard electromagnetic vehicle retarder system device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810181211.8A CN108423030A (en) | 2018-03-06 | 2018-03-06 | A kind of hump yard electromagnetic vehicle retarder system device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108423030A true CN108423030A (en) | 2018-08-21 |
Family
ID=63157867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810181211.8A Pending CN108423030A (en) | 2018-03-06 | 2018-03-06 | A kind of hump yard electromagnetic vehicle retarder system device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108423030A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217259A (en) * | 2019-06-24 | 2019-09-10 | 天津铁路信号有限责任公司 | A kind of electromagnetism car retarder applied to hump field |
| CN112389496A (en) * | 2020-11-06 | 2021-02-23 | 北京工业大学 | Permanent magnet excitation hump vehicle speed reducer |
| CN113911165A (en) * | 2021-09-30 | 2022-01-11 | 华北水利水电大学 | Speed regulator, marshalling station speed regulating device and method |
| CN115158393A (en) * | 2022-08-11 | 2022-10-11 | 邯郸市鑫泽机械电子设备有限公司 | Car stopping device for mine inclined shaft |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2653843A1 (en) * | 1976-11-26 | 1978-06-01 | Siemens Ag | CONTROL FOR WHEEL CURRENT TRACK BRAKES |
| DE3614796A1 (en) * | 1986-05-02 | 1987-11-05 | Siemens Ag | Stationary track brake |
| CN1676388A (en) * | 2005-05-27 | 2005-10-05 | 北京工业大学 | Railway hump switching permanent-magnet retarder |
| CN1810558A (en) * | 2006-03-03 | 2006-08-02 | 北京工业大学 | Permanent-magnet controllable hump yard retarder |
| CN200948803Y (en) * | 2006-09-28 | 2007-09-19 | 姬云东 | Controllable permanent-magnet vortex railroad car retarder |
| CN204527210U (en) * | 2015-04-17 | 2015-08-05 | 王庆贤 | Be applied to the hump yard speed reduction gearing of heavily loaded goods car team |
| CN207916872U (en) * | 2018-03-06 | 2018-09-28 | 北京国兴力德新材料技术有限公司 | A kind of hump yard electromagnetic vehicle retarder system device |
-
2018
- 2018-03-06 CN CN201810181211.8A patent/CN108423030A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2653843A1 (en) * | 1976-11-26 | 1978-06-01 | Siemens Ag | CONTROL FOR WHEEL CURRENT TRACK BRAKES |
| DE3614796A1 (en) * | 1986-05-02 | 1987-11-05 | Siemens Ag | Stationary track brake |
| CN1676388A (en) * | 2005-05-27 | 2005-10-05 | 北京工业大学 | Railway hump switching permanent-magnet retarder |
| CN1810558A (en) * | 2006-03-03 | 2006-08-02 | 北京工业大学 | Permanent-magnet controllable hump yard retarder |
| CN200948803Y (en) * | 2006-09-28 | 2007-09-19 | 姬云东 | Controllable permanent-magnet vortex railroad car retarder |
| CN204527210U (en) * | 2015-04-17 | 2015-08-05 | 王庆贤 | Be applied to the hump yard speed reduction gearing of heavily loaded goods car team |
| CN207916872U (en) * | 2018-03-06 | 2018-09-28 | 北京国兴力德新材料技术有限公司 | A kind of hump yard electromagnetic vehicle retarder system device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217259A (en) * | 2019-06-24 | 2019-09-10 | 天津铁路信号有限责任公司 | A kind of electromagnetism car retarder applied to hump field |
| CN110217259B (en) * | 2019-06-24 | 2024-01-19 | 天津铁路信号有限责任公司 | Electromagnetic vehicle speed reducer applied to hump field |
| CN112389496A (en) * | 2020-11-06 | 2021-02-23 | 北京工业大学 | Permanent magnet excitation hump vehicle speed reducer |
| CN112389496B (en) * | 2020-11-06 | 2022-05-03 | 北京工业大学 | Permanent magnet excitation hump vehicle speed reducer |
| CN113911165A (en) * | 2021-09-30 | 2022-01-11 | 华北水利水电大学 | Speed regulator, marshalling station speed regulating device and method |
| CN113911165B (en) * | 2021-09-30 | 2022-11-11 | 华北水利水电大学 | Speed regulator, marshalling station speed regulating device and method |
| CN115158393A (en) * | 2022-08-11 | 2022-10-11 | 邯郸市鑫泽机械电子设备有限公司 | Car stopping device for mine inclined shaft |
| CN115158393B (en) * | 2022-08-11 | 2023-11-14 | 邯郸市鑫泽机械电子设备有限公司 | Car stopping device for mine inclined shaft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108423030A (en) | A kind of hump yard electromagnetic vehicle retarder system device | |
| JP2010083446A (en) | Eddy current type rail brake | |
| CN102678789A (en) | Eddy current and friction brake device for vehicles | |
| CN105846623B (en) | A kind of electromagnetism liquid-cooled retarder of bimorph transducer twin coil | |
| CN103762821B (en) | electromagnetic brake linear motor system and control method thereof | |
| CN207916872U (en) | A kind of hump yard electromagnetic vehicle retarder system device | |
| JPH11318069A (en) | Non-contact eddy current type damping equipment for vehicle | |
| CN105904973B (en) | A kind of liquid thermoelectricity compound type retarder brake element | |
| CN110588360A (en) | Permanent magnet eddy current brake device with controllable braking force for high-speed train | |
| Luo et al. | Research on an integrated electromagnetic auxiliary disc brake device for motor vehicle | |
| Krishna et al. | Experimental investigation of influence of various parameters on permanent magnet eddy current braking system | |
| CN110542568A (en) | Rail eddy current braking performance testing device and testing method thereof | |
| CN107074116B (en) | Autonomous retarder system for a vehicle and vehicle comprising an autonomous retarder system | |
| CN103326536B (en) | A kind of employing coil and permanent magnet hybrid excitation type eddy current retarder | |
| CN210221513U (en) | Rail eddy current brake performance testing device | |
| Anantha Krishna et al. | Investigation on eddy current braking systems–a review | |
| CN105262314B (en) | A kind of live spindle electro-magnetic braking device | |
| CN112849205A (en) | Railway hump electromagnetic vehicle speed reducer | |
| CN208921455U (en) | Electromagnet is used in a kind of test of linear eddy-current brake | |
| CN204741398U (en) | Vehicle electricity eddy current brake | |
| CN204527210U (en) | Be applied to the hump yard speed reduction gearing of heavily loaded goods car team | |
| Satya et al. | A Study about Eddy Current Brakes | |
| RU2185984C2 (en) | Rail brake with permanent magnets | |
| Li et al. | Design and analysis of hybrid excitation rail eddy current brake system of high-speed train | |
| Gurav et al. | EDDY Current Braking System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |