CN104527710A - Magnetic rail braking device - Google Patents
Magnetic rail braking device Download PDFInfo
- Publication number
- CN104527710A CN104527710A CN201410850333.3A CN201410850333A CN104527710A CN 104527710 A CN104527710 A CN 104527710A CN 201410850333 A CN201410850333 A CN 201410850333A CN 104527710 A CN104527710 A CN 104527710A
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- CN
- China
- Prior art keywords
- pole shoe
- rail brake
- electromagnetic rail
- brake device
- electromagnet
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H7/00—Brakes with braking members co-operating with the track
- B61H7/02—Scotch blocks, skids, or like track-engaging shoes
- B61H7/04—Scotch blocks, skids, or like track-engaging shoes attached to railway vehicles
- B61H7/06—Skids
- B61H7/08—Skids electromagnetically operated
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention belongs to the technical field of rail vehicle braking. The magnetic rail braking device is connected with a rail vehicle and arranged on a bogie of the rail vehicle. The magnetic rail braking device comprises an electromagnet, a pole shoe, a hanging mechanism and a guiding and bearing part, wherein the electromagnet comprises an iron core with a formed whole body and an electromagnetic coil, a protective cover and a junction box which are installed on the iron core, the pole shoe is connected with the electromagnet, arranged between the electromagnet and the rail and makes contact with a rail to generate friction braking force when the pole shoe is located at a braking position, a magnetic rail braking unit composed of the electromagnet and the pole shoe is hung on the rail vehicle by the hanging mechanism, the guiding and bearing part is used for guiding the magnetic rail braking unit to move between a non-braking position and the braking position and transferring the braking force generated by the pole shoe when the pole shoe is located at the braking position to the rail vehicle. According to the magnetic rail braking device, the whole iron core and the rigid pole shoe are used, and the pole shoe and the thickness of a block board are optimized reasonably; the magnetic rail braking device has the advantages that the structure is simple, the electromagnetic loss is less, and the cost is lower and the like.
Description
Technical field
The invention belongs to rail vehicle braking technical field, be applicable to Low-floor urban rail vehicle or urban tram braking system.More specifically, the present invention relates to a kind of electromagnetic rail brake device for guideway vehicle.
Background technology
Along with the fast development of urban track traffic, motor vehicle braking system also develops different forms to adapt to different safety requirementss.Though urban tram running velocity is not high, run because the ground traffic toolses such as itself and automobile are mixed, traffic is complicated, and require brake system safe and reliable, stopping distance is short, only relies on traditional foundation brake rigging to be difficult to meet vehicle needs.
Electromagnetic rail brake device does not limit by wheel rail adhesion, emergency braking Be very effective, reliable and stable, can improve travel safety and operating efficiency, and exciting power is little, power supply burden is light, simple structure, a little repair, high speed train, common rolling stock and city rail vehicle have successful application, and urban tram (particularly low floor vehicle) has unique advantage.
Electromagnetic rail brake device structurally have integral type and multi-section type point.The former as publication number be CN202887900U, name is called as described in the Chinese invention patent of " a kind of magnetic track brake electromagnet ", is mainly used in urban track traffic; The latter as publication number be CN103747997A, name is called " brake equipment with electromagnetic rail brake device ", described in publication number is CN100396527C, name is called the Chinese invention patent of " magnetic rail brake device " etc., is then used for main line railway.
Playing two main parts to electromagnetic rail brake device performance is electromagnet and pole shoe.Electromagnet is made up of iron core and magnet coil etc., and due to the restriction of the aspect such as traditional handicraft and cost control, iron core generally adopts bolt and connecting rod to assemble or casting structure, as disclosed electromagnetic rail brake devices such as above-mentioned Chinese patent CN202887900U.This iron core easily produces assembly clearance or foundry defect in the fabrication process, causes iron core magnetic resistance to increase, reduces the magnetic force of electromagnet, and then reduce electromagnetic rail brake device braking effect.
Pole shoe is magnetizer, is again friction member, bears mechanical load (braking force) and thermal load simultaneously, therefore needs to have good Combination property, also relevant with the factor such as running velocity, hang.The material of pole shoe, parameter and structure design are very large on deceleration and stopping performance impact.
Summary of the invention
Based on above-mentioned prior art, goal of the invention of the present invention is to provide a kind of following electromagnetic rail brake device, it adopts integrated iron core and rigidity pole shoe, and rational optimization has been carried out to pole shoe and pole shoe block board thickness, there is the advantages such as structure is simple, electromagnetic consumable is little, cost is lower, be specially adapted to Low-floor urban rail vehicle, can use as emergency braking and safety catch.
In order to realize above-mentioned goal of the invention, the present invention adopts following technical scheme.
A kind of electromagnetic rail brake device, described electromagnetic rail brake device is connected with guideway vehicle and is arranged on described rail vehicle truck, described electromagnetic rail brake device should at least comprise: electromagnet, the iron core that described electromagnet at least comprises global formation and the magnet coil be arranged on described iron core, coil outer has sealing protection cover; Pole shoe, described pole shoe connects with described electromagnet, to be arranged between described electromagnet and described track and can to contact with rail at braking position and produce friction brake force; Hitch, the electromagnetic rail brake unit be made up of described electromagnet and described pole shoe is hung on described guideway vehicle and bears the gravity of electromagnetic rail brake unit by described hitch; And lead and bearing member, described guiding and bearing member are used as the guiding mechanism that electromagnetic rail brake unit moves between non-braking position and braking position, and the braking force produced when described pole shoe is in described braking position is delivered to described guideway vehicle.
Wherein, under the state that described pole shoe is in described non-braking position, between described pole shoe and described track, certain air gap is kept; Under the state that described pole shoe is in described braking position, described pole shoe directly contacts generation braking force with described track.
Further, under the state that described pole shoe is in described non-braking position, the air gap between described pole shoe and described track is more than 1/3 of described pole shoe thickness; Under the state that described pole shoe is in described braking position, described pole shoe directly contacts generation braking force with described track.
Further, the thickness of described pole shoe is 21mm-24mm, and the air gap under the state being in described non-braking position at described pole shoe between described pole shoe and described track is 7mm-10mm.
Further, also comprise at least one pole shoe dividing plate in described pole shoe, the thickness of described pole shoe dividing plate is the 1/3-1/2 of described pole shoe thickness.Further, the thickness of described pole shoe is 20mm-24mm, and the thickness of described magnetic isolation plate is 7mm-12mm.
Described hitch comprises: suspender, and described electromagnetic rail brake unit is hung on the bogie truck of described guideway vehicle by described suspender; And hanger, described hanger is connected with described suspender, bears the gravity of described electromagnetic rail brake unit.Described suspender is elastic component, described pole shoe can be remained on non-braking position.Described guiding and bearing member coordinate with the corresponding mechanism of rail vehicle truck, as the guiding mechanism that described electromagnetic rail brake unit moves between non-braking position and braking position, and the braking force that described electromagnetic rail brake unit produces are delivered to the bogie of car.
In addition, described electromagnetic rail brake device also comprises connection box, in described connection box, install binding post, and its one end is connected with described magnet coil and the other end is connected by the power supply of cable with described guideway vehicle.
Preferably, described pole shoe is made up of dead-soft steel or spheroidal graphite iron.
Preferably, adopt and in welded or bolted way described pole shoe and described electromagnet are linked together.
By adopting technical scheme as above, the invention provides and a kind ofly adopt integrated iron core and rigidity pole shoe and pole shoe and pole shoe block board thickness have been carried out to rational optimization, had the electromagnetic rail brake device of the advantages such as structure is simple, electromagnetic consumable is little, cost is lower.
Accompanying drawing explanation
Fig. 1 is electromagnetic rail brake device principle of work schematic diagram;
Fig. 2 is the structural representation of electromagnetic rail brake device of the present invention;
Fig. 3 is electromagnetic rail brake unit cross-sectional schematic of the present invention;
Fig. 4 is the block diagram of iron core;
Description of reference numerals
1 magnet coil 2 iron core 3 connection box 4 pole shoe
5 guiding and bearing member 6 hitch 7 pole shoe dividing plate 8 tracks
9 air gap 10 protective cover M magnetic circuits
Detailed description of the invention
The invention reside in provides a kind of and adopts integrated iron core and rigidity pole shoe and pole shoe and pole shoe block board thickness have been carried out to rational optimization, had the electromagnetic rail brake device of the advantages such as structure is simple, electromagnetic consumable is little, cost is lower.Below in conjunction with Figure of description, the specific embodiment of the present invention is described in detail.
Fig. 1 is electromagnetic rail brake device principle of work schematic diagram.As shown in Figure 1, the basic functional principle of electromagnetic rail brake utilizes electromagnet to the suction of magnetic conductor, electromagnet (magnet coil 1 and iron core 2) makes pole shoe 4 contact with track 8 and produce positive pressure under the effect of suction, just can produce friction force between pole shoe 4 and track 8 during train operation, reach the object of braking deceleration.Therefore technology of the present invention relates to the background knowledges such as electro-magnetism, tribology, machine design and manufacture, rail vehicle braking technology.
Particularly, electromagnetic rail brake device is primarily of magnet coil 1, iron core 2, connection box 3, pole shoe 4, guiding and bearing member 5, hitch 6, and the parts such as pole shoe dividing plate 7, protective cover 10 are formed, and are arranged on the bogie of car.After the energising of electromagnetic rail brake device, pole shoe 4 and track 8 adhesive, form friction brake force.From Conversion of Energy angle, make vehicle operating kinetic energy change into heat energy by pole shoe 4 and the wipe contact of track 8, be dispersed in environment and go.
Magnet coil 1, iron core 2, connection box 3 and protective cover 10 form electromagnet, for electromagnetic rail brake device provides electromagnetic attraction.Pole shoe 4, between electromagnet and track 8, transmits electromagnetic force and produces braking force with track friction.Hitch 6 is used for realizing the connection of electromagnetic rail brake device and bogie truck, and under non-brake operating mode, (pole shoe 4 is in non-braking position) supports the weight of electromagnetic rail brake device.The friction brake force that pole shoe 4 and track 8 produce is passed to bogie truck by guiding and bearing member 5, and play the guiding role in electromagnetic actuation, disconnecting process.
Fig. 2 is electromagnetic rail brake apparatus structure schematic diagram of the present invention; Fig. 3 is electromagnetic rail brake unit cross-sectional schematic of the present invention; Fig. 4 is the block diagram of iron core.
As shown in figs 2-4, electromagnetic rail brake device of the present invention is made up of parts such as magnet coil 1, iron core 2, connection box 3, pole shoe 4, guiding and bearing member 5, hitch 6, pole shoe dividing plate 7, coil protective covers 10.Realize electromagnetic rail brake device in the following manner: be wrapped on iron core 2 by magnet coil 1 uniform close, form magnetic rail brake device electromagnet, iron core 2 is integral forming structure, protective cover 10 sealing and protective action; With bolt, a pair pole shoe 4 is fixed to the below of electromagnet together with the pole shoe dividing plate 7 in the middle of it, pole shoe 4 is made up of dead-soft steel or spheroidal graphite iron, and the thickness of pole shoe 4 can be chosen according to applicable cases between 20mm-24mm.According to different bogie structures, guiding and bearing member 5 can be designed to different forms and welding or bolt connecting mode and electromagnet can be adopted to link together.Bearing member 5 in the present embodiment is frame-shaped construction, is located at electromagnet side.By there is elastomeric hitch 6 by electromagnetic rail brake unit supports on bogie truck, and make between pole shoe 4 and track 8, to keep certain air gap 9.Cable one end is connected with magnet coil 1 by connection box 3, and the other end is connected to power supply by the connection box (not shown) on bogie truck.
Like this, when feed circuit are connected, electromagnetic rail brake unit moves down under suction, and the spring of hitch 6 is compressed, and pole shoe 4 contacts with track 8, just can form friction brake force during Train motion.Friction brake force is delivered on bogie truck and car body by guiding and bearing member 5, and rail vehicle braking is slowed down.When power supply disconnects, suction eliminates (ignoring the impact of remanent magnetism), and the gravity of the spring overcoming electromagnetic rail brake unit of hitch 6, makes it be separated with track 8, get back to original position, still maintains certain air gap 9.By regulating the screw rod of hitch, adjustable air gap 9 size, allow to regulate, to keep predetermined air gap 9 after pole shoe wearing and tearing.
Like this, concrete structure of the present invention at least brings following advantage:
(1) electromagnetic rail brake device of the present invention contains iron core 2 structure of global formation, and the thickness of pole shoe 4 is chosen between 20mm-24mm.Then the electromagnetic performance major embodiment of electromagnetic rail brake device is size and the stability of electromagnetic attraction, and the electromagnetic attraction needed for playing in limited dimensional space.To this, the present invention adopts two kinds of approach: reduce the magnetic resistance in magnetic circuit M on the one hand as far as possible, and the sectional area of another aspect appropriate design pole shoe or thickness, utilize limited magnetic potential to obtain maximum suction, and keep stable.
(2) electromagnetic rail brake device of the present invention, adopts global formation iron core 2, avoids the manufacturing deficiency because the reasons such as processing, assembling produce and assembly clearance, effectively reduces the magnetic resistance of magnetic circuit M.The high-quality dead-soft steel that pole shoe 4 adopts magnetic property good or ductile cast iron material, ensure certain frictional behaviour, but can not damage track 8.The thickness of pole shoe 4 and pole shoe dividing plate 7 is through optimal design, and according to different track 8 specifications and suction requirement, the desirable 20mm-24mm of thickness of pole shoe 4, the thickness of pole shoe dividing plate 7 is preferably the 1/3-1/2 of pole shoe 4 thickness, is more preferably 7mm-12mm.Like this, both can ensure magnetic flow to greatest extent, the leakage field between two pole shoes 4 can be reduced again.
More specifically, because the braking effect of electromagnetic performance on electromagnetic rail brake device has remarkable impact, therefore the present invention studies emphatically the approach improving electromagnetic performance.Reduce the magnetic resistance in magnetic circuit M on the one hand, the sectional area of another aspect appropriate design pole shoe or thickness, utilize limited magnetic potential to obtain maximum suction, and keep stable as far as possible.Adopt global formation iron core 2, avoid the assembly clearance and manufacturing deficiency that produce in processing, assembling process, effectively can reduce the magnetic resistance of magnetic circuit M.Pole shoe adopts high-quality dead-soft steel or ductile cast iron material, has good magnet conductivity, and ensures certain frictional behaviour, but can not cause damage to track 8.The desirable 20mm-24mm of thickness of pole shoe 4, the thickness of pole shoe dividing plate 7 gets 7mm-12mm, have passed through optimal design, both can ensure magnetic flow to greatest extent, can reduce again the leakage field between two pole shoes 4.Generally, under limited dimensional space and a.t. condition, maximum electromagnetic attraction can be provided, and keep stable.Adopt global formation iron core 2, manufacturing cost and process-cycle are not significantly increased.Under equal conditions, the available space that the electromagnetic rail brake device of integrated iron core 2 structure takies is relatively little.By the optimization to pole shoe 4 thickness, electromagnetic rail brake device can control very well to train braking force parameter, is more conducive to braking force and accurately distributes.
By adopting technique scheme, the invention provides and a kind ofly adopt integrated iron core and rigidity pole shoe and pole shoe and pole shoe block board thickness have been carried out to rational optimization, had the electromagnetic rail brake device of the advantages such as structure is simple, electromagnetic consumable is little, cost is lower.
It should be noted that, protection scope of the present invention is not limited to the concrete technical scheme illustrated by above-mentioned detailed description of the invention, as long as and the combination meeting the technical characteristic of claim of the present invention just fall within the scope of protection of the present invention.
Claims (8)
1. an electromagnetic rail brake device, described electromagnetic rail brake device is connected with guideway vehicle and is arranged on described rail vehicle truck, it is characterized in that, described electromagnetic rail brake device comprises:
Electromagnet, described electromagnet comprises the iron core of global formation, magnet coil, protective cover and the connection box be arranged on described iron core;
Pole shoe, described pole shoe connects with described electromagnet, to be arranged between described electromagnet and described track and can to contact with rail when braking position and produce friction brake force;
Hitch, the electromagnetic rail brake unit be made up of described electromagnet and described pole shoe is hung on described guideway vehicle by described hitch;
Guiding and bearing member, described guiding and bearing member are used as the motion guide of electromagnetic rail brake unit between non-braking position and braking position, and braking force is delivered to described guideway vehicle.
2. electromagnetic rail brake device according to claim 1, is characterized in that, also comprises at least one pole shoe dividing plate in described pole shoe, and the thickness of described pole shoe dividing plate is the 1/3-1/2 of described pole shoe thickness.
3. electromagnetic rail brake device according to claim 1, is characterized in that, the thickness of described pole shoe is 20mm-24mm, and the thickness of described magnetic isolation plate is 7mm-12mm.
4. electromagnetic rail brake device according to claim 1, is characterized in that, described electromagnetic rail brake unit is hung on the bogie truck of described guideway vehicle by described suspender; Guiding and bearing member, the braking force produced by described electromagnetic rail brake unit is delivered to described bogie truck by described guiding and bearing member, and as the guiding mechanism that described electromagnetic rail brake unit moves at non-braking position and braking position.
5. electromagnetic rail brake device according to claim 4, is characterized in that, described suspender is elastic component, described pole shoe can be remained on non-braking position.
6. electromagnetic rail brake device according to claim 1, it is characterized in that, described electromagnetic rail brake device also comprises connection box, in described connection box, install binding post, and its one end is connected with described magnet coil and the other end is connected by the power supply of cable with described guideway vehicle.
7. electromagnetic rail brake device according to claim 1, is characterized in that, described pole shoe is made up of dead-soft steel or spheroidal graphite iron.
8. electromagnetic rail brake device according to claim 1, is characterized in that, described pole shoe and described electromagnet link together by mode with bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410850333.3A CN104527710A (en) | 2014-12-30 | 2014-12-30 | Magnetic rail braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410850333.3A CN104527710A (en) | 2014-12-30 | 2014-12-30 | Magnetic rail braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104527710A true CN104527710A (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410850333.3A Pending CN104527710A (en) | 2014-12-30 | 2014-12-30 | Magnetic rail braking device |
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| Country | Link |
|---|---|
| CN (1) | CN104527710A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110891844A (en) * | 2017-07-17 | 2020-03-17 | 克诺尔有限公司 | Chain magnet rail braking device for rail vehicles with reduced wear section on end links |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE684737C (en) * | 1934-10-20 | 1939-12-04 | Aeg | Rail brake magnet, in which the magnet cheeks and core form an approximately U-shaped body in cross-section |
| US3958669A (en) * | 1974-09-13 | 1976-05-25 | Knorr-Bremse Gmbh | Resiliently supported magnetic rail-brake suspension device |
| DE29505954U1 (en) * | 1995-04-06 | 1996-08-01 | Hanning & Kahl GmbH & Co., 33813 Oerlinghausen | Regulated magnetic rail brake |
| CN2524995Y (en) * | 2002-01-28 | 2002-12-11 | 湘潭电机股份有限公司 | Electromagnetic rail brake for light rail electric car |
| CN101641249A (en) * | 2007-03-23 | 2010-02-03 | 克诺尔-布里姆斯轨道车辆系统有限公司 | Magnetic rail brake device with asymmetric excitation coils and/or with multi-part coils |
| CN102431571A (en) * | 2011-10-24 | 2012-05-02 | 南车株洲电力机车有限公司 | Connecting device of magnetic track brake and magnetic track brake apparatus |
| CN204567684U (en) * | 2014-12-30 | 2015-08-19 | 北京纵横机电技术开发公司 | Electromagnetic rail brake device |
-
2014
- 2014-12-30 CN CN201410850333.3A patent/CN104527710A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE684737C (en) * | 1934-10-20 | 1939-12-04 | Aeg | Rail brake magnet, in which the magnet cheeks and core form an approximately U-shaped body in cross-section |
| US3958669A (en) * | 1974-09-13 | 1976-05-25 | Knorr-Bremse Gmbh | Resiliently supported magnetic rail-brake suspension device |
| DE29505954U1 (en) * | 1995-04-06 | 1996-08-01 | Hanning & Kahl GmbH & Co., 33813 Oerlinghausen | Regulated magnetic rail brake |
| CN2524995Y (en) * | 2002-01-28 | 2002-12-11 | 湘潭电机股份有限公司 | Electromagnetic rail brake for light rail electric car |
| CN101641249A (en) * | 2007-03-23 | 2010-02-03 | 克诺尔-布里姆斯轨道车辆系统有限公司 | Magnetic rail brake device with asymmetric excitation coils and/or with multi-part coils |
| CN102431571A (en) * | 2011-10-24 | 2012-05-02 | 南车株洲电力机车有限公司 | Connecting device of magnetic track brake and magnetic track brake apparatus |
| CN204567684U (en) * | 2014-12-30 | 2015-08-19 | 北京纵横机电技术开发公司 | Electromagnetic rail brake device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110891844A (en) * | 2017-07-17 | 2020-03-17 | 克诺尔有限公司 | Chain magnet rail braking device for rail vehicles with reduced wear section on end links |
| CN110891844B (en) * | 2017-07-17 | 2021-11-09 | 克诺尔有限公司 | Chain-type magnetic rail brake device for a rail vehicle having a reduced wear portion on the end links |
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Application publication date: 20150422 |