CN211075548U - Circular ring type HA L BACH magnetic braking device and high-speed train - Google Patents
Circular ring type HA L BACH magnetic braking device and high-speed train Download PDFInfo
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- CN211075548U CN211075548U CN201921690524.2U CN201921690524U CN211075548U CN 211075548 U CN211075548 U CN 211075548U CN 201921690524 U CN201921690524 U CN 201921690524U CN 211075548 U CN211075548 U CN 211075548U
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Abstract
The utility model relates to a rail transit technical field discloses a ring type HA L BACH magnetic braking device and high-speed train, the device includes on-vehicle part and track beam part, on-vehicle part includes ring type HA L BACH array magnet and swivel bearing, swivel bearing sets up ring type HA L BACH array magnet center, ring type HA L BACH array magnet sets up in the lower surface both sides of automobile body through respective swivel bearing, track beam part is including corresponding ring type HA L BACH array magnet gather the induction element that the magnetic field set up on the track beam, along the traffic direction, ring type HA L BACH array magnet produces the travelling wave magnetic field, simultaneously because of induction element rotates the rotating magnetic field that produces to its reaction force that produces, makes the induced electromotive force increase that induction element cutting magnetic induction line produced realizes the braking from this, HAs realized the braking of train, HAs also reduced the degree of generating heat of ground induction element.
Description
Technical Field
The utility model relates to a rail transit technical field especially relates to a ring type HA L BACH magnetic braking device and high-speed train.
Background
With the desire of society and mankind to increase the speed of the transportation industry, the increasing speed of high speed trains not only places demands on propulsion/traction systems, but also places higher demands on smooth and safe braking. At present, the braking modes of the rail train mainly comprise a mechanical type, a traction eddy current disc type, a linear eddy current magnetic braking type and the like. The mechanical braking mode mainly brakes by means of friction of mechanical parts such as a track, a train wheel track and the like, and a brake is greatly damaged by single braking and needs to be maintained frequently or brake parts need to be replaced; the traction eddy current disc type is characterized in that a complex transmission device is utilized, a disc type conductive induction plate in a magnetic field is driven in the braking process, energy conversion is carried out by forming eddy currents on the induction plate, and the braking effect is limited by the transmission capacity and the temperature rise limit of the induction plate.
The development of direct drive technology makes the linear eddy current magnetic braking mode become the mainstream trend in the current rail transit, and particularly when the linear eddy current magnetic braking mode is applied to a magnetic suspension train, an eddy current braking main magnetic field can be established by utilizing a vehicle-mounted magnet. However, in this braking mode, only the kinetic energy of the moving body is converted into the heat energy on the braking induction plate to be dissipated, so that the requirement on the latent heat of the ground induction plate is provided, and especially in a vacuum pipeline train running at a high speed, the dissipation of the heat in the vacuum brings extra design difficulty.
SUMMERY OF THE UTILITY MODEL
The utility model provides a ring type HA L BACH magnetic braking device and high-speed train can solve the difficult problem of heat discharge in the prior art.
The utility model provides a ring type HA L BACH magnetic braking device, wherein, the device includes vehicle-mounted component and track beam part, vehicle-mounted component includes ring type HA L BACH array magnet and swivel bearing, swivel bearing sets up ring type HA L BACH array magnet center, ring type HA L BACH array magnet sets up in the lower surface both sides of automobile body through respective swivel bearing, track beam part is including corresponding ring type HA L BACH array magnet gather the induction element of magnetic domain setting on the track beam, along the traffic direction, ring type HA L BACH array magnet produces the travelling wave magnetic field, simultaneously because of induction element rotates the production rotating magnetic field to its reaction force that produces, makes the induced potential increase that induction element cutting magnetic induction line produced realizes the braking.
Preferably, the circular ring type HA L BACH array magnet comprises a plurality of fan-shaped single magnets.
Preferably, the fan-shaped single magnet is a permanent magnet, a superconducting magnet or an electromagnet.
Preferably, the vehicle-mounted component further comprises a protective sleeve arranged outside the circular ring type HA L BACH array magnet.
Preferably, the material of the protective sleeve and the rotary bearing is titanium alloy or aluminum alloy.
Preferably, the sensing unit is a metal conductive plate or a metal conductive coil.
Preferably, the material of the sensing unit is a high conductivity material.
Preferably, the high conductivity material is copper or aluminum.
Preferably, the device further comprises a load connected with the rotary bearing, and the kinetic energy of the rotation of the ring-shaped HA L BACH array magnet is connected with the load through the rotary bearing to perform power generation braking.
The utility model also provides a high-speed train, wherein, including foretell ring type HA L BACH magnetic braking device.
Through the technical scheme, the ring-shaped HA L BACH array magnets can be arranged on two sides of the lower surface of the train body through the rotating bearing, and the ring-shaped HA L BACH array magnets act with the ground (track) sensing unit and convert a part of kinetic energy into self-rotating kinetic energy at the same time, so that the conversion form of the kinetic energy of the high-speed train is accelerated, the braking of the train is realized, and the heating degree of the ground sensing unit is also reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 shows a schematic diagram of a circular ring type HA L BACH magnetic braking device according to an embodiment of the present invention;
fig. 2 shows a schematic diagram of a donut-type HA L BACH array magnet according to an embodiment of the invention;
3A-3B show schematic diagrams of a fan-shaped single magnet in accordance with an embodiment of the present invention;
fig. 4 shows an expanded schematic diagram of a torus type HA L BACH array magnet according to an embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 shows a schematic diagram of a circular ring type HA L BACH magnetic braking device according to an embodiment of the present invention.
As shown in fig. 1, the embodiment of the present invention provides a circular ring type HA L BACH magnetic braking device, wherein the device includes a vehicle-mounted component and a track beam component, the vehicle-mounted component includes a circular ring type HA L BACH array magnet 1 and a rotary bearing 2, the rotary bearing 2 is disposed at the center of the circular ring type HA L BACH array magnet 1, the circular ring type HA L BACH array magnet 1 is disposed at both sides of the lower surface of the vehicle body 3 through the respective rotary bearing 2, the track beam component includes a magnetic gathering region (metal braking induction unit) 4 disposed on the track beam 5 (for example, disposed at the bottom surface of the track beam and attached to the bottom surface of the track beam) corresponding to the circular ring type HA L BACH array magnet 1, and along the running direction, the circular ring type HA L BACH array magnet 1 generates a traveling magnetic field, and at the same time, a rotating magnetic field is generated by the rotation of the induction unit 4 due to the reaction force generated by the induction unit 4, so that the induction potential generated by the cutting induction line is increased to realize braking.
For example, the vehicle-mounted component may include a set of (two) ring-shaped HA L BACH array magnets and (two) rotation bearings, and the ring-shaped HA L BACH array magnets may be symmetrically disposed on the lower surface of the vehicle body 3 through the corresponding rotation bearings (i.e., one ring-shaped HA L BACH array magnet may be coupled to the vehicle body through one rotation bearing), as shown in fig. 1.
Through the technical scheme, the ring-shaped HA L BACH array magnets can be arranged on two sides of the lower surface of the train body through the rotating bearing, and the ring-shaped HA L BACH array magnets act with the ground track sensing unit and convert a part of kinetic energy into self-rotating kinetic energy at the same time, so that the conversion form of the kinetic energy of the high-speed train is accelerated, the braking of the train is realized, and the heating degree of the ground sensing unit is also reduced.
The principle of generating induced eddy currents on the metal brake induction unit is that the faster the magnetic field changes, the stronger the generated induced electric potential, the stronger the generated eddy currents, and the stronger the corresponding magnetic braking force.
Fig. 2 shows a schematic diagram of a torus type HA L BACH array magnet according to an embodiment of the present invention.
Fig. 3A-3B show schematic diagrams of a fan-shaped single magnet in accordance with an embodiment of the present invention. Fig. 3A and 3B show different magnetic flux directions of the fan-shaped single magnet, respectively.
According to an embodiment of the present invention, as shown in fig. 2, the circular ring type HA L BACH array magnet 1 may include a plurality of fan-shaped single magnets.
That is, the circular ring type HA L BACH array magnet 1 may be spliced into a circle by a plurality of fan-shaped single magnets.
The magnetic field direction of each fan-shaped single magnet is shown in fig. 2, wherein "·" is out of the vertical paper surface, and "×" is in the vertical paper surface.
According to an embodiment of the invention, the fan-shaped single magnet is a permanent magnet, a superconducting magnet or an electromagnet.
It should be understood by those skilled in the art that the above description of the fan-shaped single magnet is only exemplary, and not limiting and the present invention can be applied to any magnet that can generate a magnetic field.
Fig. 4 shows an expanded schematic diagram of a torus type HA L BACH array magnet according to an embodiment of the present invention.
The circular ring type HA L BACH array magnet shown in fig. 2 is cut along the radial direction and unfolded to obtain the linear type HA L BACH magnet schematic diagram shown in fig. 4, and the upper and lower areas of the magnet can be divided into a magnetism gathering area and a magnetism weakening area according to the direction of the magnetic field shown in the figure.
It should be understood by those skilled in the art that the magnetic field design of the HA L BACH magnet shown in fig. 4 is only the simplest way, and all structures available from the HA L BACH arrangement can be applied to the present invention.
According to the utility model relates to an embodiment, on-vehicle part still includes protective sleeve, sets up outside ring type HA L BACH array magnet 1.
That is, the ring-shaped HA L BACH array magnet can be integrally encapsulated by providing a protective sleeve to protect it.
For example, the rotary bearing is connected to a protective sleeve outside the circular ring type HA L BACH array magnet through a mechanical connection.
According to an embodiment of the present invention, the protective sleeve and the material of the rotary bearing 2 are titanium alloy or aluminum alloy.
It will be appreciated by those skilled in the art that the above description of the materials for the protective sleeve and the slew bearing is exemplary only and not intended to limit the present invention, and that other non-magnetically permeable high strength materials may be used as the materials for the protective sleeve and the slew bearing.
According to an embodiment of the present invention, the sensing unit 4 is a metal conductive plate or a metal conductive coil.
Wherein, the (cross-section) thickness or the number of coil turns of metal conducting plate or metal conductive coil can be set according to actual conditions (e.g., different braking targets), the utility model discloses do not prescribe a limit to this.
According to an embodiment of the invention, the material of the sensing unit 4 is a high conductivity material.
According to an embodiment of the invention, the high conductivity material is copper or aluminum.
It will be understood by those skilled in the art that the above description of high conductivity materials is merely exemplary and not intended to limit the present invention, and that other high conductivity materials may be used.
According to the utility model relates to an embodiment, the device still includes the load, the load with swivel bearing 2 is connected, the rotatory kinetic energy of ring type HA L BACH array magnet 1 passes through swivel bearing 2 is connected the load carries out the electricity generation braking.
The kinetic energy of the rotation can be connected with a load through the central rotary bearing to perform power generation braking, so that the braking efficiency is further improved, and meanwhile, a part of electric energy storage can be provided for vehicle-mounted equipment.
Thus, the kinetic energy of the magnet rotation can not only improve the braking efficiency, but also recover energy as a prime mover of the generator.
The embodiment of the utility model provides a high-speed train is still provided, wherein, including the ring type HA L BACH magnetic braking device in above-mentioned embodiment.
According to the above embodiment, the utility model discloses above-mentioned embodiment arresting gear can realize the braking of train high-efficiently, and ground induction element can not damage because of the high temperature, and braking energy can be through mode dissipation or recovery beyond the heat energy simultaneously.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A circular ring type HA L BACH magnetic braking device is characterized in that the device comprises a vehicle-mounted component and a track beam component, wherein the vehicle-mounted component comprises a circular ring type HA L BACH array magnet (1) and a rotary bearing (2), the rotary bearing (2) is arranged in the center of the circular ring type HA L BACH array magnet (1), the circular ring type HA L BACH array magnet (1) is arranged on two sides of the lower surface of a vehicle body (3) through the respective rotary bearing (2), the track beam component comprises an induction unit (4) which is arranged on a track beam (5) corresponding to a magnetism gathering area of the circular ring type HA L BACH array magnet (1), and the circular ring type HA L BACH array magnet (1) generates a traveling wave magnetic field along the running direction and simultaneously rotates to generate a rotary magnetic field due to the reaction force generated by the induction unit (4) to the induction unit so that the induction potential generated by cutting magnetic induction lines of the induction unit (4) is increased to realize braking.
2. The circular ring type HA L BACH magnetic braking device according to claim 1, characterized in that the circular ring type HA L BACH array magnet (1) comprises a plurality of fan-shaped single magnets.
3. The circular ring type HA L BACH magnetic braking device according to claim 2, wherein the fan-shaped single magnet is a permanent magnet, a superconducting magnet or an electromagnet.
4. The toroidal HA L BACH magnetic braking device according to claim 1, wherein the vehicle-mounted component further comprises a protective sleeve disposed outside the toroidal HA L BACH array magnet (1).
5. The circular ring type HA L BACH magnetic brake device according to claim 4, characterized in that the material of the protective sleeve and the rotary bearing (2) is titanium alloy or aluminum alloy.
6. The circular ring type HA L BACH magnetic braking device according to claim 1, characterized in that the induction unit (4) is a metal conductive plate or a metal conductive coil.
7. The circular ring type HA L BACH magnetic braking device according to claim 6, characterized in that the material of the induction unit (4) is a high electrical conductivity material.
8. The circular ring type HA L BACH magnetic brake device of claim 6, wherein the high conductivity material is copper or aluminum.
9. The circular ring type HA L BACH magnetic braking device according to claim 1, characterized in that, the device further comprises a load, the load is connected with the rotation bearing (2), the kinetic energy of the rotation of the circular ring type HA L BACH array magnet (1) is connected with the load through the rotation bearing (2) for electric power generation braking.
10. A high-speed train comprising the circular HA L BACH magnetic brake device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921690524.2U CN211075548U (en) | 2019-10-10 | 2019-10-10 | Circular ring type HA L BACH magnetic braking device and high-speed train |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921690524.2U CN211075548U (en) | 2019-10-10 | 2019-10-10 | Circular ring type HA L BACH magnetic braking device and high-speed train |
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| CN211075548U true CN211075548U (en) | 2020-07-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112644555A (en) * | 2019-10-10 | 2021-04-13 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Circular ring type HALBACH magnetic braking device and high-speed train |
| CN113033028A (en) * | 2021-05-19 | 2021-06-25 | 中国科学院精密测量科学与技术创新研究院 | Design method of magnetic resonance Halbach type shimming coil |
-
2019
- 2019-10-10 CN CN201921690524.2U patent/CN211075548U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112644555A (en) * | 2019-10-10 | 2021-04-13 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Circular ring type HALBACH magnetic braking device and high-speed train |
| CN112644555B (en) * | 2019-10-10 | 2022-04-12 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Circular ring type HALBACH magnetic braking device and high-speed train |
| CN113033028A (en) * | 2021-05-19 | 2021-06-25 | 中国科学院精密测量科学与技术创新研究院 | Design method of magnetic resonance Halbach type shimming coil |
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