CN109649179B - Combined electromagnetic eddy current brake device - Google Patents
Combined electromagnetic eddy current brake device Download PDFInfo
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- CN109649179B CN109649179B CN201910126724.3A CN201910126724A CN109649179B CN 109649179 B CN109649179 B CN 109649179B CN 201910126724 A CN201910126724 A CN 201910126724A CN 109649179 B CN109649179 B CN 109649179B
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- side plate
- coil
- support plate
- eddy current
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/28—Eddy-current braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
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- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
A combined electromagnetic eddy current brake device belongs to the technical field of high-speed train braking, and comprises a left brake mechanism, a right brake mechanism and a connecting beam; the left brake mechanism and the right brake mechanism are respectively formed by connecting an outer side plate, an inner side plate, an upper hydraulic device, a lower hydraulic device, a main support plate, a second support plate, a trapezoidal guide rail, a square coil, an L-shaped coil and a rail; the structure is novel, the working principle is clear, the function of up-down left-right movement of the L-shaped magnet exciting coils on the two sides can be realized by utilizing the hydraulic device, the square coils and the L-shaped coils are combined, each L-shaped coil comprises 4 independent magnet exciting coils, 9 coils are contained in one section, the electromagnetic eddy current braking area is increased, when one coil in the section is damaged, the electromagnetic eddy current braking capacity is not greatly influenced, the heat dissipation of the coil is fast and uniform, and the electromagnetic eddy current braking capacity is also improved.
Description
Technical Field
The invention belongs to the technical field of high-speed train braking, relates to an eddy current braking device, and particularly relates to a combined electromagnetic eddy current braking device.
Background
With the rapid development of the number of high-speed trains in China, people can go out more conveniently, but a train braking system is an important guarantee for the running safety of the trains. The conventional brake technology uses mechanical friction brake, and the brake force is generated by applying a friction plate on a tread of a wheel pair or a friction plate of the wheel pair through compressed air. However, this conventional braking method causes great wear and thermal damage to the friction disks. Based on this, the electromagnetic eddy current brake is the best choice for braking at high speed of the train at present, and the electromagnetic eddy current brake has no abrasion between a brake shoe and a wheel rim, and does not generate dust and pollution, so the electromagnetic eddy current brake is valued by related fields at home and abroad. However, the electromagnetic eddy current braking force and the reliability of the operation of the excitation coil need to be further improved, so it is important to design an electromagnetic eddy current braking device capable of increasing the electromagnetic eddy current braking area and improving the electromagnetic eddy current braking capability.
Disclosure of Invention
The invention aims to provide a combined electromagnetic eddy current braking device aiming at the defects of poor reliability and the like of the existing electromagnetic eddy current braking force and the operation of an excitation coil.
The technical scheme of the invention is as follows: a combined electromagnetic eddy current brake device is characterized in that: the combined electromagnetic eddy current brake device consists of a left brake mechanism, a right brake mechanism and a connecting beam; the left brake mechanism and the right brake mechanism are respectively formed by connecting an outer side plate, an inner side plate, an upper hydraulic device, a lower hydraulic device, a main support plate, a second support plate, a trapezoidal guide rail, a square coil, an L-shaped coil and a rail; the outer side plate and the inner side plate are connected with the second support plate in a sliding manner through a trapezoidal guide rail, a second support plate baffle is connected and arranged on two outer side surfaces of the second support plate, the upper hydraulic device is fixedly arranged above the second support plate, a piston rod of the upper hydraulic device is respectively fixedly connected with the inner surfaces of the outer side plate and the inner side plate, a main support plate is arranged between the outer side plate and the inner side plate below the second support plate, one end of the main support plate is connected and provided with a square stop block, the other end of the main support plate is connected with the connecting beam, the lower hydraulic device is fixedly arranged above the main support plate, a piston rod of the lower hydraulic device is fixedly connected with the second support plate, the square coil is arranged below the main support plate, the rail is arranged below the square coil, and the L-shaped coils are arranged on two sides of the rail, and the L-shaped coils on each side are composed of a first coil, a second coil, a third coil and a fourth coil, and the first coil, the second coil, the third coil and the fourth coil are arranged corresponding to each inner surface of the rail.
Rectangular windows are arranged on the outer side plate and the inner side plate, the square stop blocks are connected with the outer side ends of the main support plates through the rectangular windows, and the connecting beams are connected with the two inner side ends of the main support plates through the rectangular windows.
The outer side plate and the inner side plate are connected with the second supporting plate in a sliding mode through the trapezoid guide rail, piston rods at two ends of the upper hydraulic device are connected with the outer side plate and the inner side plate in a screwing mode through threads, and when the piston rods of the upper hydraulic device do telescopic motion, the outer side plate and the inner side plate achieve the function that the outer side plate and the inner side plate move outwards and inwards respectively along the trapezoid guide rail.
A lower hydraulic device is fixedly arranged above the main support plate, a piston rod of the lower hydraulic device is connected with the second support plate through threads, and when the lower hydraulic device works, hydraulic pressure is transmitted to the second support plate and the structure connected with the second support plate realizes the function of moving up and down.
The square stop block is welded on the outer side of the main support plate, the thickness of the square stop block is the same as the width of the rectangular window, the square stop block plays a role in guiding the outer side plate and the inner side plate to move up and down, and the outer side plate and the inner side plate are restrained from moving back and forth.
The cross section of the rail is in an I shape, and the length of the bottom track of the rail is larger than that of the top track of the rail.
The square coils are hung below the main support plate, the L-shaped coils are fixedly arranged on the outer side plate and the inner side plate through screws, all coil arrangement modes are arranged alternately according to N poles and S poles, the coil arrangement in each section is matched with the inner surface of the rail, the electromagnetic eddy current braking area can be increased through the arrangement and arrangement modes of the coils, and the electromagnetic eddy current braking capacity is improved.
The connecting beam is connected with the inner side of the main support plate through nuts on the fixed supports at the two ends, so that good linear stability and curve passing capacity of a high-speed train can be guaranteed, the width of the connecting beam is the same as that of the rectangular window, the guiding effect of up-and-down movement of the outer side plate and the inner side plate is achieved, and the front-and-back movement of the outer side plate and the inner side plate is restrained.
The invention has the beneficial effects that: the combined electromagnetic eddy current brake device provided by the invention has the advantages that the structure is novel, the working principle is clear, the function of up-down left-right movement of the L-shaped magnet exciting coils on the two sides can be realized by utilizing a hydraulic device, a combination mode of a square coil and an L-shaped coil is adopted, each L-shaped coil comprises 4 independent magnet exciting coils, 9 coils are contained in one section, the electromagnetic eddy current brake area is increased, when a certain coil in the section is damaged, the influence on the electromagnetic eddy current brake capacity is small, the heat dissipation of the coils is fast and uniform, and the electromagnetic eddy current brake capacity is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the structure of the combined coil of the present invention.
In the figure: the device comprises an outer plate 1, an upper hydraulic device 2, an inner plate 3, a second support plate 4, a second support plate baffle 5, a trapezoidal guide rail 6, a lower hydraulic device 7, a main support plate 8, a square coil 9, an L-shaped coil 10, a first coil 101, a second coil 102, a third coil 103, a fourth coil 104, a rail 11, a connecting beam 12, a square stop block 13 and a rectangular window 14.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1-2, a combined electromagnetic eddy current braking device is composed of a left braking mechanism, a right braking mechanism and a connecting beam 12; the left brake mechanism and the right brake mechanism are respectively formed by connecting an outer side plate 1, an inner side plate 3, an upper hydraulic device 2, a lower hydraulic device 7, a main support plate 8, a second support plate 4, a trapezoidal guide rail 6, a square coil 9, an L-shaped coil 10 and a rail 11; the outer side plate 1 and the inner side plate 3 are connected with a second support plate 4 in a sliding way through a trapezoid guide rail 6, two outer side surfaces of the second support plate 4 are connected with second support plate baffles 5, an upper hydraulic device 2 is fixedly arranged above the second support plate 4, a piston rod of the upper hydraulic device 2 is respectively fixedly connected with the inner surfaces of the outer side plate 1 and the inner side plate 3, a main support plate 8 is arranged between the outer side plate 1 and the inner side plate 3 below the second support plate 4, one end of the main support plate 8 is connected with a square stop 13, the other end of the main support plate 8 is connected with a connecting beam 12, a lower hydraulic device 7 is fixedly arranged above the main support plate 8, a piston rod of the lower hydraulic device 7 is connected and fixed with the second support plate 4, the square coil 9 is arranged below the main support plate 8, a rail 11 is arranged below the square coil 9, L-shaped coils 10 are arranged at two sides of the rail 11 and are connected with the inner side plate 3, The inner surfaces of the outer panels 1 are fixedly joined, and each side L-shaped coil 10 is constituted by a first coil 101, a second coil 102, a third coil 103, and a fourth coil 104, and the first coil 101, the second coil 102, the third coil 103, and the fourth coil 104 are provided corresponding to each inner surface of the rail 11.
As shown in fig. 1-2, in a combined electromagnetic eddy current braking device, rectangular windows 14 are respectively disposed on an outer side plate 1 and an inner side plate 3, a square stopper is connected to the outer side end of a main support plate 8 through the rectangular windows 14, and a connection beam 12 is connected to the two inner side ends of the main support plate 8 through the rectangular windows 14. Outer panel 1 and interior plate 3 pass through trapezoidal guide rail 6 and second backup pad 4 sliding connection, go up 2 both ends piston rods of hydraulic means and connect soon with outer panel 1 and interior plate 3 through the screw thread, when the piston rod of last hydraulic means 2 was concertina movement, realized outer panel 1 and interior plate 3 along the function of trapezoidal guide rail 6 outside respectively with the inward movement. A lower hydraulic device 7 is fixedly arranged above the main support plate 8, a piston rod of the lower hydraulic device 7 is in threaded connection with the second support plate 4, and when the lower hydraulic device 7 works, hydraulic pressure is transmitted to the second support plate 4, and the structure connected with the second support plate 4 realizes the function of moving up and down. The square block 13 is welded on the outer side of the main support plate 8, the thickness of the square block 13 is the same as the width of the rectangular window 14, the guide function of the up-and-down movement of the outer side plate 1 and the inner side plate 3 is achieved, and the back-and-forth movement of the outer side plate 1 and the inner side plate 3 is restrained. The cross section of the rail 11 is in an I shape, and the length of the bottom track of the rail 11 is larger than that of the top track. The square coils 9 are hung below the main support plate 8, the L-shaped coils 10 are fixedly arranged on the outer side plate 1 and the inner side plate 3 through screws, all coil arrangement modes are arranged alternately according to N poles and S poles, the coil arrangement in each section is matched with the inner surface of a rail, the electromagnetic eddy current braking area can be increased through the arrangement and arrangement modes of the coils, and the electromagnetic eddy current braking capacity is improved. The connecting beam 12 is connected with the inner side of the main support plate 8 through nuts on the fixed supports at the two ends, so that good linear stability and curve passing capacity of a high-speed train can be guaranteed, the width of the connecting beam is the same as that of the rectangular window, the guiding effect of up-and-down movement of the outer side plate and the inner side plate is achieved, and the front-and-back movement of the outer side plate 1 and the inner side plate 3 is restrained.
The invention has novel structure and clear working principle, can realize the function of up-down left-right movement of the L-shaped magnet exciting coils at two sides by utilizing the hydraulic device, adopts the combination mode of the square coils and the L-shaped coils, each L-shaped coil comprises 4 independent magnet exciting coils, and each L-shaped coil comprises 9 coils in one section, thereby increasing the braking area of the electromagnetic eddy current.
Claims (8)
1. A combined electromagnetic eddy current brake device is characterized in that: the combined electromagnetic eddy current brake device consists of a left brake mechanism, a right brake mechanism and a connecting beam (12); the left brake mechanism and the right brake mechanism are formed by connecting an outer side plate (1), an inner side plate (3), an upper hydraulic device (2), a lower hydraulic device (7), a main support plate (8), a second support plate (4), a trapezoidal guide rail (6), a square coil (9), an L-shaped coil (10) and a rail (11); the outer side plate (1) and the inner side plate (3) are in sliding connection with the second support plate (4) through a trapezoid guide rail (6), two outer side surfaces of the second support plate (4) are connected with a second support plate baffle (5), the upper hydraulic device (2) is fixedly arranged above the second support plate (4), a piston rod of the upper hydraulic device (2) is fixedly connected with the inner surfaces of the outer side plate (1) and the inner side plate (3) respectively, a main support plate (8) is arranged between the outer side plate (1) and the inner side plate (3) below the second support plate (4), one end of the main support plate (8) is connected with a square stop block (13), the other end of the main support plate (8) is connected with the connecting beam (12), the lower hydraulic device (7) is fixedly arranged above the main support plate (8), and a piston rod of the lower hydraulic device (7) is fixedly connected with the second support plate (4), the square coil (9) is arranged below the main supporting plate (8), the rail (11) is arranged below the square coil (9), the L-shaped coils (10) are arranged on two sides of the rail (11) and fixedly connected with the inner surfaces of the inner side plate (3) and the outer side plate (1), each L-shaped coil (10) is composed of a first coil (101), a second coil (102), a third coil (103) and a fourth coil (104), and the first coil (101), the second coil (102), the third coil (103) and the fourth coil (104) are arranged corresponding to each inner surface of the rail (11).
2. A combined electromagnetic eddy current brake as claimed in claim 1, wherein: rectangular windows (14) are arranged on the outer side plate (1) and the inner side plate (3), the square stop blocks are connected with the outer side ends of the main support plates (8) through the rectangular windows (14), and the connecting beam (12) is connected with the two inner side ends of the two main support plates (8) in the left brake mechanism and the right brake mechanism through the rectangular windows (14).
3. A combined electromagnetic eddy current brake as claimed in claim 1, wherein: outer panel (1) and interior plate (3) are through trapezoidal guide rail (6) and second backup pad (4) sliding connection, go up hydraulic means (2) both ends piston rod and connect soon with outer panel (1) and interior plate (3) through the screw thread, when the piston rod of last hydraulic means (2) was concertina movement, realized outer panel (1) and interior plate (3) outwards and the function of inside movement respectively along trapezoidal guide rail (6).
4. A combined electromagnetic eddy current brake as claimed in claim 1, wherein: the hydraulic device (7) is fixedly arranged above the main support plate (8), a piston rod of the lower hydraulic device (7) is in threaded connection with the second support plate (4), and when the lower hydraulic device (7) works, hydraulic pressure is transmitted to the second support plate (4) and the structure connected with the second support plate (4) realizes the function of moving up and down.
5. A combined electromagnetic eddy current brake as claimed in claim 2, wherein: the square stop block (13) is welded on the outer side of the main supporting plate (8), the thickness of the square stop block (13) is the same as the width of the rectangular window (14), the guide effect of up-and-down movement is achieved on the outer side plate (1) and the inner side plate (3), and the front-and-back movement of the outer side plate (1) and the inner side plate (3) is restrained.
6. A combined electromagnetic eddy current brake as claimed in claim 1, wherein: the cross section of the rail (11) is in an I shape, and the length of the bottom track of the rail (11) is larger than that of the top track.
7. A combined electromagnetic eddy current brake as claimed in claim 1, wherein: the square coils (9) are hung below the main support plate (8), the L-shaped coils (10) are fixedly arranged on the outer side plate (1) and the inner side plate (3) through screws, all coil arrangement modes are arranged alternately according to N poles and S poles, the coil arrangement in each section is matched with the inner surface of the rail, the electromagnetic eddy current braking area can be increased through the arrangement and arrangement modes of the coils, and the electromagnetic eddy current braking capacity is improved.
8. A combined electromagnetic eddy current brake as claimed in claim 2, wherein: the connecting beam (12) is connected with the inner side end of the main support plate (8) through nuts on the fixed supports at the two ends, so that good linear stability and curve passing capacity of a high-speed train can be guaranteed, the width of the connecting beam is the same as that of the rectangular window, the guiding effect of up-and-down movement of the outer side plate and the inner side plate is achieved, and the front-and-back movement of the outer side plate (1) and the inner side plate (3) is restrained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126724.3A CN109649179B (en) | 2019-02-20 | 2019-02-20 | Combined electromagnetic eddy current brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126724.3A CN109649179B (en) | 2019-02-20 | 2019-02-20 | Combined electromagnetic eddy current brake device |
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| Publication Number | Publication Date |
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| CN109649179A CN109649179A (en) | 2019-04-19 |
| CN109649179B true CN109649179B (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910126724.3A Active CN109649179B (en) | 2019-02-20 | 2019-02-20 | Combined electromagnetic eddy current brake device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111884478B (en) * | 2020-07-29 | 2022-11-01 | 扬州大学 | Compact electromagnetic eddy current brake device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0309651A2 (en) * | 1987-09-30 | 1989-04-05 | Knorr-Bremse Ag | Eddy current track brake for railway vehicles |
| KR20000027099A (en) * | 1998-10-24 | 2000-05-15 | 윤문수 | Permanent magnet excited eddy-current brake |
| EP1477382A2 (en) * | 2003-03-10 | 2004-11-17 | Walker Europe Holding BV | Electrically operable magnetic rail brake device |
| CN101811444A (en) * | 2010-04-23 | 2010-08-25 | 浙江大学 | Hybrid vortex rail braking system |
| JP2011143829A (en) * | 2010-01-15 | 2011-07-28 | Railway Technical Research Institute | Eddy current brake device included in railway rolling stock |
| CN102678788A (en) * | 2012-05-25 | 2012-09-19 | 浙江大学 | Combined type disc-shaped eddy-current brake applied to high-speed train |
| CN103280944A (en) * | 2013-06-03 | 2013-09-04 | 江苏大学 | Eddy current retarder increasing braking torque |
| CN107628060A (en) * | 2017-09-14 | 2018-01-26 | 中车青岛四方车辆研究所有限公司 | Track train eddy-current brake and track train |
| CN108860208A (en) * | 2018-08-16 | 2018-11-23 | 扬州华铁铁路配件有限公司 | A kind of High-Speed Eddy Braking device |
-
2019
- 2019-02-20 CN CN201910126724.3A patent/CN109649179B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0309651A2 (en) * | 1987-09-30 | 1989-04-05 | Knorr-Bremse Ag | Eddy current track brake for railway vehicles |
| KR20000027099A (en) * | 1998-10-24 | 2000-05-15 | 윤문수 | Permanent magnet excited eddy-current brake |
| EP1477382A2 (en) * | 2003-03-10 | 2004-11-17 | Walker Europe Holding BV | Electrically operable magnetic rail brake device |
| JP2011143829A (en) * | 2010-01-15 | 2011-07-28 | Railway Technical Research Institute | Eddy current brake device included in railway rolling stock |
| CN101811444A (en) * | 2010-04-23 | 2010-08-25 | 浙江大学 | Hybrid vortex rail braking system |
| CN102678788A (en) * | 2012-05-25 | 2012-09-19 | 浙江大学 | Combined type disc-shaped eddy-current brake applied to high-speed train |
| CN103280944A (en) * | 2013-06-03 | 2013-09-04 | 江苏大学 | Eddy current retarder increasing braking torque |
| CN107628060A (en) * | 2017-09-14 | 2018-01-26 | 中车青岛四方车辆研究所有限公司 | Track train eddy-current brake and track train |
| CN108860208A (en) * | 2018-08-16 | 2018-11-23 | 扬州华铁铁路配件有限公司 | A kind of High-Speed Eddy Braking device |
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