CN216734304U - Skid device of magnetic suspension vehicle - Google Patents
Skid device of magnetic suspension vehicle Download PDFInfo
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- CN216734304U CN216734304U CN202220015156.7U CN202220015156U CN216734304U CN 216734304 U CN216734304 U CN 216734304U CN 202220015156 U CN202220015156 U CN 202220015156U CN 216734304 U CN216734304 U CN 216734304U
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Abstract
The utility model discloses a skid device of a magnetic levitation vehicle, which comprises a skid main body, a skid abrasion part, a lifting driving device and a supporting wheel, wherein the skid abrasion part is arranged below the skid main body; the lifting driving device is arranged at the bottom of the skid main body and can drive the skid wearing part to move up and down and to be positioned. The relative height of a skid wearing part is changed through the lifting driving device, so that the skid device can rapidly and conveniently realize the free switching of two running modes of sliding and rolling, and the magnetic suspension vehicle under the unexpected condition can conveniently realize emergency braking, rescue and maintenance. Meanwhile, the skid device is good in compatibility, the installation mode, the basic mechanism and the main function of the existing magnetic suspension skid scheme are reserved, and the loss of a skid abrasion part can be greatly reduced compared with the existing skid scheme.
Description
Technical Field
The utility model relates to a skid device of a magnetic levitation vehicle, belonging to the technical field of rail transit.
Background
As a new urban rail transit system, a maglev train is rapidly developed in recent years. The magnetic levitation vehicle has the advantages of high speed, low noise, no abrasion, strong climbing capability, good curve trafficability and the like, and commercial operation is realized on the magnetic levitation line in the Shanghai. In order to ensure the safety and reliability of the magnetic-levitation train, a skid device is usually provided. The main function of the skid device is to serve as a final stage brake device and to support the vehicle body in case of emergency. However, when the magnetic levitation fails and cannot be levitated, the skid is dragged to a maintenance point by the rescue vehicle, and due to strong friction with the rail surface, not only a large advancing resistance is generated, but also the skid abrasion plate and the rail surface are greatly abraded. In order to ensure that the rescue can be quickly unfolded, prolong the service life of the skid device and protect the smooth surface of the rail, the skid device needs to be improved.
Chinese utility model patent publication No. CN207173620U discloses a vertical skid for magnetic levitation train and skid support thereof. The vertical skid support for the magnetic suspension train comprises a support body, wherein at least one caulking groove used for embedding and fixing a skid friction block is longitudinally formed in the lower end face of the support body, the opening of the caulking groove is downward, and at least one neck is arranged in the direction of the caulking groove facing to the notch. The utility model discloses a solved the current vertical skid shock resistance of maglev train poor, be not suitable for the problem that the long distance trouble of maglev train dragged. However, when the maglev train is dragged for a long distance in a fault, great advancing resistance and abrasion still exist.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides the skid device of the magnetic levitation vehicle, which can quickly and conveniently realize the free switching of two running modes of sliding and rolling of the skid device by controlling the lifting of the skid wearing part, and is convenient for unfolding rescue and maintenance of the magnetic levitation vehicle under an unexpected condition.
In order to realize the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a skid device of magnetic levitation vehicle, includes skid main part and sets up the skid wearing and tearing piece in skid main part below, and its structural feature is: the skid is characterized by further comprising a supporting wheel and a lifting driving device, wherein the supporting wheel is connected with the bottom of the skid main body through a supporting rod and can penetrate through a through hole formed in the skid abrasion part; the lifting driving device is arranged at the bottom of the skid main body and can drive the skid wearing part to move up and down and to be positioned.
When the skid abrasion part moves downwards to be abutted against the sliding track surface of the high-speed magnetic levitation vehicle, the lowest point of the skid abrasion part is positioned below the lowest point of the supporting wheel, the skid abrasion part is contacted with the track surface, and the skid device is in a sliding motion mode; when skid wearing parts upward movement is close to when the skid main part, the supporting wheel passes the through-hole that sets up on the skid wearing parts, the minimum of supporting wheel is located the below of skid wearing parts minimum, supporting wheel and rail surface contact, the skid device is in the rolling motion mode. When the suspension system of the high-speed magnetic suspension vehicle fails, the driving device drives the skid abrasion part to move upwards so that the skid device is in a rolling motion mode, and the magnetic suspension vehicle can be easily moved out of a fault area under the traction of the rescue vehicle. When the skid device is required to be used as the final-stage braking device, the driving device drives the skid abrasion part to move downwards so that the skid device is in a sliding motion mode, the magnetic levitation vehicle can be helped to realize emergency braking, and the use safety of the magnetic levitation vehicle is effectively improved. When the skid device is in a sliding mode, the magnetic levitation vehicle is supported by the lifting driving device, a certain bottom overhaul space can be provided, and the overhaul work of the magnetic levitation vehicle is convenient to carry out quickly.
The relative height of a skid wearing part is changed through the lifting driving device, so that the free switching of two running modes of sliding and rolling of the skid device is quickly and conveniently realized, and the emergency braking, rescue and maintenance of the magnetic suspension vehicle under the unexpected condition are conveniently realized; meanwhile, the skid device is good in compatibility, the installation mode, the basic mechanism and the main functions of the existing high-speed magnetic levitation skid scheme are reserved, and the loss of the skid plate can be greatly reduced compared with the existing skid scheme.
Furthermore, be equipped with between skid main part and the skid wearing and tearing piece respectively with the shock attenuation elastic component that skid main part and skid wearing and tearing piece link to each other. The shock absorption elastic part is arranged between the skid main body and the skid abrasion part to relieve impact vibration, so that the use safety of the skid device is protected.
In order to ensure the stability of the skid wearing part when moving up and down, preferably, the shock absorption elastic part is arranged in the middle of the skid wearing part.
Furthermore, the top of skid wearing part is equipped with spacing protection piece, spacing protection piece encircles the setting of shock attenuation elastic component. The limiting protection piece is used for limiting and protecting the damping elastic piece.
In order to make the skid device in the rolling mode, the magnetic suspension vehicle walks more stably. Preferably, a plurality of supporting wheels are arranged at the bottom of the skid main body at intervals.
Preferably, the supporting wheels are walking wheel pairs, and the supporting rods are connected with connecting shafts of the walking wheel pairs.
In order to reduce the friction between the skid wearing part and the rail gap, the bottoms of the two ends of the skid wearing part are preferably provided with inclined planes.
Furthermore, a wearing plate is arranged at the bottom of the skid wearing part. When the skid device is in a sliding mode, the abrasion plate at the bottom of the skid abrasion part is in contact with the rail surface to generate friction braking force, so that the magnetic suspension vehicle is helped to realize emergency braking.
In order to make the lifting of the skid wearing part more stable, preferably, the lifting driving devices are arranged at two ends of the bottom of the skid main body.
Preferably, the maximum working stroke of the lifting driving device is 100-150 mm. The maximum working stroke of the lifting driving device is optimally 126 mm.
Compared with the prior art, the utility model has the following beneficial effects:
1. the relative height of a skid wearing part is changed through the lifting driving device, so that the free switching of the sliding and rolling running modes of the skid device is realized quickly and conveniently, and the emergency braking, the rescue and the maintenance of the magnetic suspension vehicle under the unexpected condition are realized conveniently.
2. When the skid device is in a sliding mode, the magnetic levitation vehicle is supported by the lifting driving device, a certain bottom overhaul space can be provided, and the overhaul work of the magnetic levitation vehicle is convenient to carry out quickly.
3. The skid device is good in compatibility, the installation mode, the basic mechanism and the main function of the existing magnetic suspension skid scheme are reserved, and the loss of a skid abrasion part can be greatly reduced compared with the existing skid scheme.
Drawings
FIG. 1 is a schematic structural diagram of a skid device of a magnetic levitation vehicle;
FIG. 2 is an exploded view of a skid device of a magnetic levitation vehicle;
FIG. 3 is a bottom view of a skid body of a skid device of a magnetic levitation vehicle;
FIG. 4 is a schematic structural diagram of a magnetic levitation vehicle with a skid device in a rolling state;
fig. 5 is a schematic structural diagram of a skid device of a magnetic levitation vehicle in a sliding state.
In the drawings, 1-the skid body; 2-a skid wear member; 3-a support wheel; 4-a lifting drive device; 5-a through hole; 6-supporting rods; 7-mounting a flange; 8-installing an interface; 9-wearing plate; 10-a shock absorbing spring; 11-a limit guard; 12-inclined plane.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence with the upper, lower, left and right directions of the drawings, and do not limit the structure.
As shown in figure 1, the skid device of the magnetic suspension vehicle comprises a skid main body 1 and a skid wearing part 2, wherein the skid wearing part 2 is arranged below the skid main body 1. Three installation interfaces 8 are evenly provided with at 1 top of skid main part, and skid main part 1 is connected with the suspension frame of vehicle through installation interface 8. As shown in fig. 2, two supporting wheels 3 are symmetrically arranged at the bottom of the skid main body 1, the supporting wheels 3 are connected with the skid main body 1 through supporting rods 6, and the supporting rods 6 are connected with the skid main body 1 through mounting flanges 7. Two through holes 5 are symmetrically formed in the skid abrasion part 2, the through holes 5 correspond to the supporting wheels 3, and the supporting wheels 3 can freely penetrate through the through holes 5. The middle part of the skid wearing part 2 is provided with a damping elastic part 10, the damping elastic part 10 is a damping spring, and the damping elastic part 10 is used for relieving impact vibration to protect the use safety of the skid device. The novel skid device is symmetrically arranged along the axis of the shock absorption elastic part 10, the shock absorption elastic part 10 is located between the skid main body 1 and the skid abrasion part 2, and two ends of the shock absorption elastic part 10 are respectively connected with the skid main body 1 and the skid abrasion part 2. The top of skid wearing part 2 is provided with spacing protection piece 11, and spacing protection piece 11 encircles shock attenuation elastic component 10 and sets up, and spacing protection piece 11 is used for spacing, the protection to shock attenuation elastic component 10. As shown in fig. 3, two lifting driving devices 4 are symmetrically embedded at two ends of the bottom of the skid body 1, and a driving shaft of each lifting driving device 4 is connected with the skid wearing part 2. The lifting driving device 4 is a hydraulic cylinder, the maximum working stroke of the lifting driving device 4 is 100-150 mm, and the maximum working stroke is 126mm optimally. As shown in fig. 4, the bottoms of the two ends of the skid wearing part 2 are respectively provided with an inclined surface 12, and a plurality of wearing plates 9 are uniformly arranged on the bottoms of the skid wearing part 2 and the inclined surfaces 12.
The lifting driving device 4 controls the skid wearing part 2 to move up and down through the driving shaft, so that the skid device is in different working states. When skid wear member 2 is close to skid body 1, the lowest point of support wheel 3 is below the lowest point of skid wear member 2. As shown in fig. 4, the support wheels 3 are now in contact with the rail surface and the skid device is in the rolling mode. When skid wear member 2 is away from skid body 1, the lowest point of skid wear member 2 is below the lowest point of support wheel 3. As shown in fig. 5, at this time, the wear plate 9 at the bottom of the skid wear member 2 is in direct contact with the rail surface to generate a frictional braking force, and the skid device is in a sliding mode. In the practical process, when the suspension system of the magnetic suspension vehicle fails, the magnetic suspension vehicle needs to rapidly drive away from a fault area under the guidance of a rescue vehicle. The skid device is arranged to be in a rolling mode, and the magnetic levitation vehicle can be easily moved out of a fault area under the traction of the rescue vehicle. Under emergency, when the skid device is required to be used as the last-stage braking device, the skid device is set to be in a sliding mode, so that emergency braking of the magnetic levitation vehicle is realized, and the use safety of the magnetic levitation vehicle is effectively improved. Normally, the skid device is in a rolling mode. The slip mode can also hold up high-speed maglev vehicle's suspension frame when overhauing the maglev vehicle except that providing the effect of mechanical braking force for the skid device, provides certain bottom maintenance space, and the maintenance work that makes things convenient for high-speed maglev vehicle is swiftly gone on.
According to the skid device of the magnetic levitation vehicle, the relative height of the skid wearing part is changed through the lifting driving device, so that the free switching between the sliding operation mode and the rolling operation mode of the skid device is rapidly and conveniently realized, and the magnetic levitation vehicle under the unexpected condition can be conveniently unfolded, rescued and maintained. The skid device is good in compatibility, the installation mode, the basic mechanism and the main function of the existing magnetic suspension skid scheme are reserved, and the loss of a skid abrasion part can be greatly reduced compared with the existing skid scheme.
The foregoing examples are set forth to illustrate the present invention more clearly and are not to be construed as limiting the scope of the utility model, which is defined in the appended claims to which the utility model pertains, as modified in all equivalent forms, by those skilled in the art after reading the present invention.
Claims (10)
1. The utility model provides a skid device of magnetic levitation vehicle, includes skid main part (1) and sets up skid wearing and tearing piece (2) in skid main part (1) below, its characterized in that: the skid is characterized by further comprising a supporting wheel (3) and a lifting driving device (4), wherein the supporting wheel (3) is connected with the bottom of the skid main body (1) through a supporting rod (6), and the supporting wheel (3) can penetrate through a through hole (5) formed in the skid abrasion part (2); lifting drive device (4) set up in skid main part (1) bottom, lifting drive device (4) can drive skid wearing and tearing piece (2) reciprocate and fix a position.
2. A skid device of a magnetic levitation vehicle as recited in claim 1, wherein: and a damping elastic part (10) which is respectively connected with the skid main body (1) and the skid abrasion part (2) is arranged between the skid main body (1) and the skid abrasion part (2).
3. A skid device of a magnetic levitation vehicle as recited in claim 2, wherein: the shock absorption elastic part (10) is arranged in the middle of the skid abrasion part (2).
4. A skid device of a magnetic levitation vehicle as recited in claim 2 or 3, wherein: the top of skid wearing part (2) is equipped with spacing protection piece (11), spacing protection piece (11) encircle shock attenuation elastic component (10) set up.
5. A skid device of a magnetic levitation vehicle as recited in claim 1, wherein: the skid main body (1) is provided with a plurality of supporting wheels (3) at intervals.
6. A skid device of a magnetic levitation vehicle as recited in claim 1 or 5, wherein: the supporting wheels (3) are walking wheel pairs, and the supporting rods (6) are connected with connecting shafts of the walking wheel pairs.
7. A skid device for a magnetic levitation vehicle as recited in claim 1, wherein: inclined planes are arranged at the bottoms of the two ends of the skid abrasion part (2).
8. A skid device of a magnetic levitation vehicle as recited in claim 1 or 7, wherein: and a wearing plate is arranged at the bottom of the skid wearing part (2).
9. A skid device for a magnetic levitation vehicle as recited in claim 1, wherein: and the lifting driving devices (4) are arranged at two ends of the bottom of the skid main body (1).
10. A skid device of a magnetic levitation vehicle as recited in claim 1 or 9, wherein: the maximum working stroke of the lifting driving device (4) is 100-150 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220015156.7U CN216734304U (en) | 2022-01-04 | 2022-01-04 | Skid device of magnetic suspension vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220015156.7U CN216734304U (en) | 2022-01-04 | 2022-01-04 | Skid device of magnetic suspension vehicle |
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| Publication Number | Publication Date |
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| CN216734304U true CN216734304U (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220015156.7U Active CN216734304U (en) | 2022-01-04 | 2022-01-04 | Skid device of magnetic suspension vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024050992A1 (en) * | 2022-09-05 | 2024-03-14 | 中车长春轨道客车股份有限公司 | Skid device for normal-conduction high-speed vehicle |
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2022
- 2022-01-04 CN CN202220015156.7U patent/CN216734304U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024050992A1 (en) * | 2022-09-05 | 2024-03-14 | 中车长春轨道客车股份有限公司 | Skid device for normal-conduction high-speed vehicle |
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