CN214112549U - Emergency wheel structure of high-speed magnetic levitation vehicle - Google Patents
Emergency wheel structure of high-speed magnetic levitation vehicle Download PDFInfo
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- CN214112549U CN214112549U CN202023123186.XU CN202023123186U CN214112549U CN 214112549 U CN214112549 U CN 214112549U CN 202023123186 U CN202023123186 U CN 202023123186U CN 214112549 U CN214112549 U CN 214112549U
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Abstract
The utility model discloses a high-speed maglev vehicle's emergent wheel structure belongs to high-speed maglev vehicle technical field, and it sets up through flexible rotating part, connecting rod on the bogie bottom surface of high-speed maglev vehicle bottom and walking the correspondence of the peer part of road wheel, has formed the scalable pivoted emergent wheel structure in high-speed maglev vehicle bottom, provides supplementary for the transfer of emergent braking back high-speed maglev vehicle. The utility model discloses an emergent wheel structure of high-speed maglev vehicle, a structure is simple, the setting is simple and convenient, can be on the basis of noninterference high-speed maglev train normal operating, realize the automobile body support and walk the line guide after the emergent stop of train, the skid mechanism of its bottom of car body can keep away from the rail surface of sliding the rail when guaranteeing the train to drag, avoid the excessive wearing and tearing of skid mechanism and sliding the rail, prolong its life, guarantee emergent convenience and the accuracy of dragging of high-speed maglev vehicle, promote the emergent sparse technical development of technique of high-speed maglev traffic, better application prospect and spreading value have.
Description
Technical Field
The utility model belongs to the technical field of high-speed maglev vehicle, concretely relates to emergent wheel structure of high-speed maglev vehicle.
Background
With the continuous development of rail transit technology and the increasing improvement of living standard of people, the requirements on the travel quality and the travel efficiency are also continuously improved. At present, although the traditional wheel-rail track traffic is greatly improved in the operation speed compared with the prior art, the operation speed is limited by the wheel-rail adhesion limit and is difficult to be greatly improved. Meanwhile, with the continuous accumulation and development of magnetic levitation track traffic technology, the research heat of high-speed magnetic levitation track traffic begins to rise year by year, and the ever-conducting high-speed magnetic levitation initially realizes commercial application or reaches the commercial application degree.
The existing normally-conducting high-speed magnetic levitation vehicles mostly adopt an arrangement form of rail-holding running, and a certain suspension gap exists between the running magnetic levitation vehicle and the top surface of a sliding track. When a train breaks down suddenly or loses power in an interval, the magnetic-levitation train can be safely stopped by regenerative braking, resistance braking, eddy current braking and skid braking in sequence. The skid brake is used as the last stage brake, and when the speed of the train is reduced to be low, the vehicle-mounted skid mechanism is contacted with the sliding rail to brake and decelerate the train.
At present, after a high-speed maglev train stops in an emergency, a skid mechanism is mostly contacted with a rail surface to provide support for the whole train, and then the train is dragged to the next station for maintenance through a professional rescue vehicle. However, when the vehicle is towed, the vehicle-mounted skid mechanism and the skid rails are still in a contact state, that is, the train slides on the skid rails through the skid mechanism. Although the skid mechanism as a braking part is arranged on the magnetic-levitation train and has a very important function, the skid mechanism is not suitable for being used as a running mechanism when the high-speed magnetic-levitation train is dragged. This is because the friction resistance between the skid mechanism and the track surface of the magnetic levitation vehicle is large when the magnetic levitation vehicle is towed, which puts a great demand on the traction power of the rescue vehicle and also adds extra pressure to the emergency rescue work. Meanwhile, for the vehicle-mounted skid mechanism, the long-distance dragging will rapidly aggravate the abrasion of the abrasion plate, so that the vehicle-mounted skid mechanism needs to be replaced and maintained frequently. In addition, long distance sliding of the skid on the sliding rail can reduce the service life of the sliding brake rail, and serious noise pollution can be generated in the sliding process.
SUMMERY OF THE UTILITY MODEL
To the above defect of prior art or improve in the demand one or more, the utility model provides a high-speed maglev vehicle's emergent wheel structure can keep away from the rail running surface of sliding rail when the vehicle normal operating to with walking wheel butt rail running surface after the emergent braking of high-speed maglev vehicle, later with automobile body jack-up, accomplish high-speed maglev vehicle's emergent line of walking.
In order to achieve the above object, the utility model provides an emergency wheel structure of a high-speed magnetic levitation vehicle, which is arranged at the bottom of a bogie of the high-speed magnetic levitation vehicle and comprises a telescopic rotating part, a connecting rod and a running wheel pair;
the telescopic rotating component comprises a hydraulic cylinder body and a piston rod; one end of the hydraulic cylinder body is rotatably connected to the bottom surface of the bogie, and the other end of the hydraulic cylinder body is matched with one end of the piston rod, so that the piston rod can axially extend and retract in a reciprocating manner under the change of hydraulic pressure in the hydraulic cylinder body;
the connecting rod is of a rod-shaped structure, one end of the connecting rod is hinged with one end of the piston rod, which is far away from the hydraulic cylinder body, the other end of the connecting rod is rotatably connected with the bottom surface of the bogie, and an included angle between the axis of the connecting rod and the bottom surface of the bogie when the connecting rod is folded is an acute angle;
the walking wheel pair comprises two walking wheels which are arranged in pairs, the two walking wheels are connected by a connecting shaft which is coaxially arranged, and the connecting shaft is coaxially arranged at the position where the piston rod and the connecting rod are mutually hinged; and then the running wheel pair is far away from the sliding rail surface of the high-speed magnetic levitation vehicle when not in work, and can abut against the rail surface of the sliding rail under the rotation and extension of the telescopic rotating component and the matching rotation of the connecting rod, and jack up the high-speed magnetic levitation vehicle.
As a further improvement, the traveling wheel set is always in and passes respectively the hydraulic cylinder body and the bogie articulated position between two vertical planes of the connecting rod and the bogie articulated position, just the vertical plane is parallel to the axis of the connecting shaft.
As a further improvement of the present invention, the bottom surface of the bogie is provided with a connecting support corresponding to the hydraulic cylinder body and/or the rotating joint of the connecting rod.
As a further improvement, the bogie bottom interval is provided with a plurality of the emergency wheel structure.
As the utility model discloses a further improvement, it is a plurality of emergent wheel structure coordinated control is unified to be packed up or is unified to put down.
As a further improvement of the utility model, all or part of the walking wheels are electric wheels; the electric wheels can automatically run under the power supply.
As a further improvement, the vertical stroke of emergent wheel structure when packing up the state conversion and working condition is 8 ~ 15 mm.
As a further improvement, the bottom height when walking the wheel pair and withdrawing is higher than the bottom surface height of high-speed maglev vehicle bottom skid mechanism, just it highly is less than to walk the bottom height of running the wheel pair during operation the bottom height of skid mechanism.
The above-described improved technical features may be combined with each other as long as they do not conflict with each other.
Generally, through the utility model above technical scheme who conceives compares with prior art, the beneficial effect who has includes:
(1) the utility model discloses an emergent wheel structure of high-speed maglev vehicle, it is through flexible rotating part on the bogie bottom surface of high-speed maglev vehicle bottom, the corresponding setting of connecting rod and walking wheel peer part, the scalable pivoted emergent wheel structure in high-speed maglev vehicle bottom has been formed, this emergent wheel structure keeps away from the rail tread of slideing the rail all the time in high-speed maglev vehicle normal operating and braking process, and can switch to operating condition after emergent braking, not only avoided emergent wheel structure to high-speed maglev vehicle normal operating after setting up, the interference of normal braking, still effectively realized the quick transfer after the vehicle braking is sparse, guarantee the maglev vehicle operation, in the braking reliability, the transfer efficiency of vehicle has still been promoted, the cost of setting and the use cost of rescue equipment have been practiced thrift.
(2) The utility model discloses an emergent wheel structure of high-speed maglev vehicle, it walks the road wheel to flexible rotating part, relative position between the connecting rod through preferred setting for it is in between the articulated position of flexible rotating part and connecting rod all the time to walk the projection of road wheel pair on the bogie bottom surface, has effectively shortened the flexible stroke and the pneumatic cylinder body of piston rod, the rotation stroke of connecting rod, has reduced the design degree of difficulty of emergent wheel structure, has realized the quick response control of emergent wheel, has guaranteed high-speed maglev vehicle's operation safety.
(3) The utility model discloses an emergent wheel structure of high-speed maglev vehicle, a structure is simple, the setting is simple and convenient, can be on the basis of noninterference high-speed maglev train normal operating, realize the automobile body support and walk the line guide after the emergent stop of train, the skid mechanism of its bottom of car body can keep away from the rail surface of sliding the rail when guaranteeing the train to drag, avoid the excessive wearing and tearing of skid mechanism and sliding the rail, prolong its life, guarantee emergent convenience and the accuracy of dragging of high-speed maglev vehicle, promote the emergent sparse technical development of technique of high-speed maglev traffic, better application prospect and spreading value have.
Drawings
Fig. 1 is a schematic structural view of an emergency wheel structure in the embodiment of the present invention when retracted;
fig. 2 is a schematic structural view of an emergency wheel structure in an embodiment of the present invention during operation;
fig. 3 is a structural front view of the emergency wheel structure in the embodiment of the present invention when it is retracted;
fig. 4 is a front view of the emergency wheel structure according to the embodiment of the present invention;
fig. 5 is a structural side view of an emergency wheel structure in an embodiment of the present invention;
FIG. 6 is a schematic structural view of the embodiment of the present invention in which the telescopic rotating member is coupled to the connecting rod;
in all the figures, the same reference numerals denote the same features, in particular:
1. a telescopic rotating member; 2. a connecting rod; 3. a pair of running wheels; 4. a bogie; 5. connecting a support; 6. a sliding rail; 101. A hydraulic cylinder body; 102. a piston rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Example (b):
referring to fig. 1-6, the emergency wheel structure of the high-speed maglev vehicle in the preferred embodiment of the present invention is disposed on the bottom surface of the bogie 4 of the high-speed maglev vehicle, and includes a correspondingly disposed telescopic rotating component 1, a connecting rod 2 and a running wheel pair 3.
Specifically, the telescopic rotating member 1 in the preferred embodiment is as shown in fig. 6, and it is preferably a hydraulic telescopic member, including a cylinder body 101 and a piston rod 102. Wherein, the one end of pneumatic cylinder body 101 articulates on the bottom surface of bogie 4, and the other end matches with the one end of piston rod 102, through the hydraulic pressure size that changes in pneumatic cylinder body 101, can correspond the axial that realizes piston rod 102 and stretch out and draw back. Meanwhile, the other end of the piston rod 102 is hinged and matched with the end of the connecting rod 2, and a running wheel pair 3 is arranged at the hinged position of the two, as shown in figures 1-5.
Further, the running wheel pair 3 in the preferred embodiment comprises a pair of running wheels, a connecting shaft is arranged between the two running wheels, the connecting shaft passes through the hinging position of the piston rod 102 and the connecting rod 2, and the two running wheels are respectively and rotatably connected with the end part of the connecting shaft, so that the running wheel pair 3 can run on the sliding rail 6. Preferably, part or all of the running wheels arranged at the bottom of the high-speed magnetic suspension vehicle are electric wheels, and the running wheels can automatically run after power is supplied (the non-electric wheels can be driven when the electric wheels run), so that the arrangement of a dragging mechanism is avoided, and the high-speed magnetic suspension vehicle with an emergency fault can automatically run to a corresponding station yard. Meanwhile, the distance between the two running wheels in the preferred embodiment is preferably designed according to the width of the sliding rail and the length of the connecting shaft.
Further, the connecting rod 2 in the preferred embodiment is rod-shaped, with one end hinged to the piston rod 102 and the other end hinged to the bottom surface of the bogie 4, as shown in fig. 3 and 4. Preferably, connection seats 5 are provided on the bottom surface of the bogie 4 corresponding to the ends of the link 2 and the telescopic rotating member 1, respectively, so that the ends of the cylinder body 101 and the link 2 can be hinged to the corresponding connection seats 5, respectively.
In addition, for the running wheel pair 3 in the preferred embodiment, the running wheel pair is always located between two vertical planes respectively passing through the hinged position of the hydraulic cylinder body 101 and the bogie 4 and the hinged position of the connecting rod 2 and the bogie 4, and the vertical planes are specifically parallel to the axis of the running wheel pair 3, so that the projection of the running wheel pair 3 on the bottom surface of the bogie 4 can be always located between the two hinged positions on the bottom surface of the bogie 4, and when the running wheel pair 3 abuts against the track surface of the sliding rail 6, the telescopic rotating component 1 and the connecting rod 2 can share and transmit load, and the stress stability of the emergency wheel structure is ensured. When the running wheel pair 3 rotates to a position right below the hinged position of the connecting rod 2, the angle between the connecting rod 2 and the bottom surface of the bogie 4 is 90 degrees, and at the moment, the connecting rod 2 bears all/most of vertical load, so that the stress stability of the whole structure is not favorable.
When the device is actually arranged, the suspension clearance of the high-speed magnetic suspension vehicle is usually 8-13 mm, and the suspension clearance is smaller. Meanwhile, under normal conditions, if the emergency wheel structure is lower than the lowest point of the whole vehicle, the driving safety is not good. Thus, when the train is operating normally, the emergency wheel structure is in a stowed state, as shown in fig. 3. When the train is stopped in emergency, the hydraulic cylinder body 101 can be controlled to push the piston rod 102, so that the included angle between the connecting rod 2 and the bottom surface of the bogie 4 (or the rail running surface of the sliding rail 6) is increased, and the running wheel pair 3 abuts against the rail running surface of the sliding rail 6 to jack up the train body, as shown in fig. 4. At the moment, the skid mechanism for emergency braking of the high-speed magnetic levitation vehicle is far away from the rail running surface of the sliding rail 6, and then the train can run on the sliding rail 6 by dragging the rescue vehicle. Obviously, if the walking wheel pair 3 is an electric wheel, the rotation of the electric wheel can be realized by supplying power to the electric wheel, so that the train automatically walks on the sliding rail 6 and automatically runs to a maintenance station, the arrangement of corresponding rescue equipment is avoided, and the cost is saved.
Note that the vertical stroke required when the running wheel set 3 is switched from the stowed state to the operating state (the vertical stroke is not equal to the distance between the bottom and the rail surface of the slide rail 6 in the stowed state of the running wheel set 3 but is the sum of the distance and the height at which the vehicle is raised) is often small, and is generally 8 to 15mm, and more preferably 10 mm. In view of this, the overall size of the emergency wheel structure tends to be small in practical installation. Therefore, in order to ensure the stable support of the emergency wheel mechanism, the emergency wheel structures on the bottom surface of the same bogie 4 are arranged at intervals in the preferred embodiment, and the emergency wheel structures are preferably controlled in a linkage manner.
The utility model provides an emergent wheel structure of high-speed maglev vehicle, a structure is simple, the setting is simple and convenient, can be on the basis of noninterference high-speed maglev train normal operating, realize the automobile body support and walk the line guide after the emergent stop of train, the skid mechanism of its bottom of car body can keep away from the rail surface of sliding the rail when guaranteeing the train to drag, avoid the excessive wearing and tearing of skid mechanism and sliding the rail, prolong its life, guarantee emergent convenience and the accuracy of dragging of high-speed maglev vehicle, promote the emergent sparse technical development of technique of high-speed maglev traffic, better application prospect and spreading value have.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. An emergency wheel structure of a high-speed magnetic levitation vehicle is characterized in that the emergency wheel structure is arranged at the bottom of a bogie of the high-speed magnetic levitation vehicle and comprises a telescopic rotating part, a connecting rod and a running wheel pair;
the telescopic rotating component comprises a hydraulic cylinder body and a piston rod; one end of the hydraulic cylinder body is rotatably connected to the bottom surface of the bogie, and the other end of the hydraulic cylinder body is matched with one end of the piston rod, so that the piston rod can axially extend and retract in a reciprocating manner under the change of hydraulic pressure in the hydraulic cylinder body;
the connecting rod is of a rod-shaped structure, one end of the connecting rod is hinged with one end of the piston rod, which is far away from the hydraulic cylinder body, the other end of the connecting rod is rotatably connected with the bottom surface of the bogie, and an included angle between the axis of the connecting rod and the bottom surface of the bogie when the connecting rod is folded is an acute angle;
the walking wheel pair comprises two walking wheels which are arranged in pairs, the two walking wheels are connected by a connecting shaft which is coaxially arranged, and the connecting shaft is coaxially arranged at the position where the piston rod and the connecting rod are mutually hinged; and then the running wheel pair is far away from the sliding rail surface of the high-speed magnetic levitation vehicle when not in work, and can abut against the rail surface of the sliding rail under the rotation and extension of the telescopic rotating component and the matching rotation of the connecting rod, and jack up the high-speed magnetic levitation vehicle.
2. The emergency wheel structure of the high-speed magnetic levitation vehicle as recited in claim 1, wherein the running wheel pair is always located between two vertical planes respectively passing through the hinge position of the hydraulic cylinder body and the hinge position of the bogie and the hinge position of the connecting rod and the hinge position of the bogie, and the vertical planes are parallel to the axis of the connecting shaft.
3. The emergency wheel structure of the high-speed magnetic levitation vehicle as recited in claim 1, wherein a connecting seat is provided on the bottom surface of the bogie corresponding to the rotational connection of the hydraulic cylinder body and/or the connecting rod.
4. The emergency wheel structure of the high-speed magnetic levitation vehicle as recited in any one of claims 1-3, wherein a plurality of emergency wheel structures are arranged at intervals on the bottom of the bogie.
5. The emergency wheel structure of the high-speed magnetic levitation vehicle as recited in claim 4, wherein a plurality of emergency wheel structures are linked and controlled to be put away or put down in a unified manner.
6. The emergency wheel structure of the high-speed magnetic levitation vehicle as recited in claim 1, wherein all or part of the running wheels are electric wheels; the electric wheels can automatically run under the power supply.
7. The emergency wheel structure of the high-speed magnetic levitation vehicle as recited in claim 1, wherein the vertical stroke of the emergency wheel structure when the emergency wheel structure is converted from the retracted state to the working state is 8-15 mm.
8. The emergency wheel structure of a high-speed magnetic levitation vehicle as recited in claim 1, wherein the bottom height of the running wheel pairs when retracted is higher than the bottom height of the bottom skid mechanism of the high-speed magnetic levitation vehicle, and the bottom height of the running wheel pairs when working is lower than the bottom height of the skid mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023123186.XU CN214112549U (en) | 2020-12-23 | 2020-12-23 | Emergency wheel structure of high-speed magnetic levitation vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023123186.XU CN214112549U (en) | 2020-12-23 | 2020-12-23 | Emergency wheel structure of high-speed magnetic levitation vehicle |
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| CN214112549U true CN214112549U (en) | 2021-09-03 |
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| CN202023123186.XU Active CN214112549U (en) | 2020-12-23 | 2020-12-23 | Emergency wheel structure of high-speed magnetic levitation vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910913A (en) * | 2021-11-03 | 2022-01-11 | 中车长春轨道客车股份有限公司 | Electric magnetic suspension train, current receiving device thereof and electric magnetic suspension train parking area track |
| CN114789737A (en) * | 2022-04-28 | 2022-07-26 | 中铁第四勘察设计院集团有限公司 | Vacuum magnetic suspension pipeline structure |
-
2020
- 2020-12-23 CN CN202023123186.XU patent/CN214112549U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910913A (en) * | 2021-11-03 | 2022-01-11 | 中车长春轨道客车股份有限公司 | Electric magnetic suspension train, current receiving device thereof and electric magnetic suspension train parking area track |
| CN114789737A (en) * | 2022-04-28 | 2022-07-26 | 中铁第四勘察设计院集团有限公司 | Vacuum magnetic suspension pipeline structure |
| CN114789737B (en) * | 2022-04-28 | 2023-06-27 | 中铁第四勘察设计院集团有限公司 | Vacuum magnetic levitation pipeline structure |
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