CN216943080U - Emergency support guide sliding shoe suitable for superconducting electric magnetic levitation of low-vacuum pipeline - Google Patents
Emergency support guide sliding shoe suitable for superconducting electric magnetic levitation of low-vacuum pipeline Download PDFInfo
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- CN216943080U CN216943080U CN202123301276.8U CN202123301276U CN216943080U CN 216943080 U CN216943080 U CN 216943080U CN 202123301276 U CN202123301276 U CN 202123301276U CN 216943080 U CN216943080 U CN 216943080U
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Abstract
The utility model relates to the technical field of magnetic suspension vehicle traveling mechanisms, and discloses an emergency support guide sliding shoe suitable for superconducting electric magnetic suspension of a low-vacuum pipeline. Wherein, this emergent direction piston shoe that supports includes wearing plate, the installation component, main metal rubber spare, vice metal rubber spare and fastener, wearing plate lower surface is provided with the inclined plane that is used for with the track contact, the installation component is including being used for the first mounting base of being connected with the suspension frame and being used for the second mounting base of being connected with wearing plate, the second mounting base sets up the upper surface at wearing plate, second mounting base upper end is provided with main mounting groove, the lower extreme is provided with vice mounting groove, and the bottom of main mounting groove and the bottom of vice mounting groove link up through the through-hole, main metal rubber spare sets up in main mounting groove, vice metal rubber spare sets up in vice mounting groove, first mounting base is provided with the boss, the boss passes main metal rubber spare and gets into the through-hole, the fastener passes vice metal rubber spare and is connected with the boss.
Description
Technical Field
The utility model relates to the technical field of magnetic suspension vehicle running mechanisms, in particular to an emergency support guide sliding shoe suitable for superconducting electric magnetic suspension of a low-vacuum pipeline.
Background
When a superconducting electric maglev (EDS) maglev train runs, the magnetic field of the vehicle-mounted superconducting magnet cuts the ground coil to generate induced current and an induced magnetic field, and the magnetic field of the vehicle-mounted superconducting magnet interacts with the induced magnetic field of the ground coil to generate electromagnetic levitation force and guiding force, so that the levitation and guiding of the train are realized. In order to improve the economy of a superconducting electric maglev (EDS) system maglev train, 2 suspension frames are generally arranged below each train body, or a hinged grouping mode is adopted, 1 suspension frame is shared by adjacent train bodies, once a magnet is quenched, a vehicle loses all or part of electromagnetic suspension guiding force, and a great rail collision risk exists, so an emergency support guiding device must be arranged, and reliable mechanical support guiding capacity is provided for magnetic suspension after quenching.
The device is characterized in that rotating parts such as a roller and an inner ring of a bearing of the device are made of non-magnetic and non-conductive ceramic materials, so that the problems of bearing eddy current heat, electric corrosion, grease consolidation and the like caused by the fact that a wheel body rotates at a high speed to cut a superconducting magnet magnetic field can be solved, and meanwhile, vibration is reduced by a rubber pad between a bearing outer ring and a mounting seat.
However, the prior art devices suffer from the following disadvantages: firstly, the bearing and the highest rotating speed of the ceramic bearing are limited, the short-time supporting and guiding after quenching at the speed of about 550km/h can be realized to the maximum extent when the ceramic bearing bears the weight of a train, the problems of structural damage, grease consolidation and the like caused by frictional heat are easy to occur when the service time exceeds the range, and the durability is low; secondly, the ceramic bearing has poor impact resistance, the rubber ring is added between the bearing outer ring and the bearing mounting bracket for buffering and vibration reduction, the rubber ring has limited buffering and vibration reduction performance and smaller damping under the limitation of size, and the ceramic bearing and a vehicle are subjected to large impact and have the risk of bouncing and falling for many times after the ceramic bearing and the vehicle are subjected to ultra-quench and fall, so that the ceramic bearing has higher requirements on the strength and rigidity of the integral structure of the ceramic bearing and the train and is not beneficial to light weight; thirdly, the direct contact of wheel body and track receives the impact very big, therefore still need use metal material, and the high-intensity magnetic field that the wheel body high-speed rotatory cutting superconducting magnet produced in the use still has the hot, the eddy current resistance's of vortex problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides an emergency support guide sliding shoe suitable for superconducting electric magnetic levitation of a low-vacuum pipeline, which can solve the technical problem in the prior art.
The utility model provides an emergency supporting and guiding skid shoe suitable for superconducting electric magnetic levitation of a low-vacuum pipeline, which comprises a wear plate, a mounting assembly, a main metal rubber piece, an auxiliary metal rubber piece and a fastener, wherein the lower surface of the wear plate is provided with an inclined surface for contacting with a track, the mounting assembly comprises a first mounting base for connecting with a suspension frame and a second mounting base for connecting with the wear plate, the second mounting base is arranged on the upper surface of the wear plate, the upper end of the second mounting base is provided with a main mounting groove, the lower end of the second mounting base is provided with an auxiliary mounting groove, the bottom of the main mounting groove is communicated with the bottom of the auxiliary mounting groove through a through hole, the main metal rubber piece is arranged in the main mounting groove, the auxiliary metal rubber piece is arranged in the auxiliary mounting groove, and the first mounting base is provided with a boss, the boss penetrates through the main metal rubber part and enters the through hole, and the fastener penetrates through the auxiliary metal rubber part and is connected with the boss.
Preferably, the main metal rubber part and the auxiliary metal rubber part are of circular ring structures, the inner diameter of the main metal rubber part is the same as that of the auxiliary metal rubber part, the outer diameter of the main metal rubber part is the same as that of the auxiliary metal rubber part, and the height of the main metal rubber part is larger than that of the auxiliary metal rubber part.
Preferably, the fastening piece is a fastening screw, the boss is provided with a threaded hole, and the fastening screw is in fit connection with the threaded hole.
Preferably, the first mounting base is connected with the suspension frame through a connecting piece, and the second mounting base is connected with the wear plate through a connecting piece.
Preferably, the material of the wear plate is austenitic stainless steel or titanium alloy.
Preferably, the material of the first mounting base and the second mounting base is austenitic stainless steel or titanium alloy.
Preferably, the main metal rubber piece and the secondary metal rubber piece are made of austenitic stainless steel wires or alloy wires.
Preferably, the material of the fastener is austenitic stainless steel or titanium alloy.
According to the technical scheme, the sliding shoe type emergency supporting structure is adopted to replace a wheel type emergency supporting structure, a high-speed rotating part is not required to be arranged, and the problems of eddy heat and eddy resistance generated by a high-speed cutting magnetic field of a metal wheel body are solved; ceramic bearings are not needed, so that the use of the sliding shoes is not limited by the bearing and the highest rotating speed of the ceramic bearings; in addition, metal rubber is adopted as a buffering vibration isolation element, the high damping ratio of 0.1-0.2 and the high heat resistance of not less than 400-600 ℃ are achieved, and the sliding shoe has a movement space with six degrees of freedom in a certain range after being assembled, so that the sliding shoe is suitable for different falling postures, the buffering vibration attenuation performance is high, and the maximum overload of a train is small.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a perspective view of an emergency support guide shoe suitable for superconducting electrodynamic magnetic levitation of a low vacuum pipeline according to an embodiment of the present invention;
fig. 2 shows a cross section of an emergency support guide skid shoe suitable for superconducting electrodynamic magnetic levitation of a low vacuum pipeline according to an embodiment of the present invention.
Description of the reference numerals
1 wearing plate; 2 a first mounting base; 3 a second mounting base;
4 main metal rubber parts; 5 pairs of metal rubber pieces; 6, fastening pieces.
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 clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection 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.
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 unless specifically stated otherwise. 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.
As shown in fig. 1 and 2, an embodiment of the present invention provides an emergency support guide skid shoe suitable for superconducting electromotive magnetic levitation of a low vacuum pipeline, wherein the emergency support guide skid shoe comprises a wear plate 1, a mounting assembly, a main metal rubber piece 4, an auxiliary metal rubber piece 5 and a fastening piece 6, wherein the lower surface of the wear plate 1 is provided with an inclined surface for contacting with a track, the mounting assembly comprises a first mounting base (a suspension end mounting base) 2 for connecting with a suspension and a second mounting base (a wear plate end mounting base) 3 for connecting with the wear plate 1, the second mounting base 3 is arranged on the upper surface of the wear plate 1, the upper end of the second mounting base 3 is provided with a main mounting groove, the lower end of the second mounting groove is provided with an auxiliary mounting groove, the bottom of the main mounting groove and the bottom of the auxiliary mounting groove are communicated through a through hole, the main metal rubber piece 4 is arranged in the main mounting groove, the auxiliary metal rubber part 5 is arranged in the auxiliary mounting groove, the first mounting base 2 is provided with a boss, the boss penetrates through the main metal rubber part 4 to enter the through hole, and the fastener 6 penetrates through the auxiliary metal rubber part 5 and is connected with the boss.
The fastener is connected with the boss from bottom to top, and the main metal rubber part and the auxiliary metal rubber part are limited in respective mounting grooves, so that the main metal rubber part, the auxiliary metal rubber part, the first mounting base and the second mounting base form a whole. When the train falls down due to the quench of the superconducting magnet, the main metal rubber part and the auxiliary metal rubber part generate compression deformation according to the falling posture of the train, and six-degree-of-freedom buffer vibration reduction is provided when the wearing plate is attached to the track.
According to the technical scheme, the sliding shoe type emergency supporting structure is adopted to replace a wheel type emergency supporting structure, a high-speed rotating part is not required to be arranged, and the problems of eddy heat and eddy resistance generated by a high-speed cutting magnetic field of a metal wheel body are solved; ceramic bearings are not needed, so that the use of the sliding shoes is not limited by the bearing and the highest rotating speed of the ceramic bearings; in addition, metal rubber is adopted as a buffering vibration isolation element, the high damping ratio of 0.1-0.2 and the high heat resistance of not less than 400-600 ℃ are achieved, and the sliding shoe has a movement space with six degrees of freedom in a certain range after being assembled, so that the sliding shoe is suitable for different falling postures, the buffering vibration attenuation performance is high, and the maximum overload of a train is small.
The emergency support guide sliding shoes can be arranged at the bottom of the train and at two sides of the train and are generally arranged on a suspension frame. For example, four sets of emergency support guide shoes according to the utility model can be installed at the bottom of each suspension frame, and two sets of emergency support guide shoes according to the utility model are respectively installed at two sides of each suspension frame.
According to an embodiment of the present invention, the inclined surface provided on the lower surface of the wear plate 1 may be formed by chamfering both ends of the wear plate 1.
According to an embodiment of the present invention, the main metal rubber 4 and the secondary metal rubber 5 are circular ring structures, and the inner diameter of the main metal rubber 4 is the same as the inner diameter of the secondary metal rubber 5, the outer diameter of the main metal rubber 4 is the same as the outer diameter of the secondary metal rubber 5, and the height of the main metal rubber 4 is greater than the height of the secondary metal rubber 5.
The main metal rubber part is large in size, can have more compressible quantity, and provides buffering vibration isolation in all directions for the train when the train falls off and runs subsequently; and the auxiliary metal rubber part adopts a small size, so that the relative operation between the fastening part and the first mounting base can be ensured, and meanwhile, certain buffering and vibration isolation capability is provided in the axial direction.
According to an embodiment of the present invention, the fastening member 6 is a fastening screw, the boss is provided with a threaded hole, and the fastening screw is connected with the threaded hole in a matching manner.
According to an embodiment of the utility model, the first mounting base 2 is connected to the suspension by a connector, and the second mounting base 3 is connected to the wear plate 1 by a connector.
For example, the connecting member is a screw, and the second mounting base and the wear plate are connected by the screw matching with a threaded hole on the wear plate. The screw can pass through the fastener and be connected with the screw hole of wearing plate, also can pass through the screw hole of second mounting base and wearing plate and be connected.
According to one embodiment of the utility model, the material of the wear plate 1 is austenitic stainless steel (e.g., austenitic stainless steel 0Cr18Ni9Ti) or a titanium alloy (e.g., titanium alloy TC 4).
For example, the wear plate may be integrally machined from austenitic stainless steel or titanium alloy.
By adopting the material, the abrasion loss of the abrasion plate can be controlled while the abrasion loss of the rail is reduced. In addition, the heat flow distribution coefficient and the abrasion amount of the friction pair are calculated and tested and verified during design, so that the abrasion plate can have enough high-temperature strength while the thickness of the abrasion plate covers the abrasion amount.
According to an embodiment of the utility model, the material of the first mounting base 2 and the second mounting base 3 is austenitic stainless steel or titanium alloy.
For example, the first mounting base is made of austenitic stainless steel or titanium alloy through integral machining, mounting holes (for example, threaded holes) are machined in the first mounting base for fixedly mounting with the suspension frame, and the boss of the first mounting base is connected with the main metal rubber piece, the auxiliary metal rubber piece and the second mounting base or the abrasion plate into a whole through fastening screws. The second mounting base is made of austenitic stainless steel or titanium alloy through integral machining, mounting holes (such as threaded holes) are machined in the second mounting base and are used for being fixedly connected with the wearing plate, and the second mounting base is integrally connected with the main metal rubber piece, the auxiliary metal rubber piece and the first mounting base through fastening screws.
According to an embodiment of the present invention, the material of the main metal rubber 4 and the secondary metal rubber 5 is austenitic stainless steel wire or alloy wire.
For example, the main metal rubber 4 and the auxiliary metal rubber 5 may be homogeneous elastic porous buffer damping elements formed by pressing austenitic stainless steel wires or high-temperature alloy wires.
Thus, the main metal rubber member and the sub metal rubber member can have high-temperature resistance and high-damping characteristics.
The high-temperature alloy wire may be, for example, a GH4169 alloy wire.
Through reasonable design of the rigidity of the main metal rubber part and the rigidity of the auxiliary metal rubber part, the transverse overload coefficients of the suspension frame and the train body are not more than 3 and the transverse overload coefficients of the suspension frame and the train body are not more than 5 in the process of quenching. So as not to obscure the present invention, detailed description thereof will be omitted.
According to one embodiment of the utility model, the material of the fastening element 6 is austenitic stainless steel or a titanium alloy.
For example, the fastening screw is integrally machined from austenitic stainless steel or titanium alloy, a thread is machined at one end of the fastening screw for connecting the main metal rubber part, the auxiliary metal rubber part, the first mounting base and the second mounting base or the wearing plate into a whole, and the connected device has a certain range of six-degree-of-freedom motion space and six-degree-of-freedom buffering and vibration isolation capability.
With continued reference to fig. 1 and 2, two sets of mounting assemblies may be provided on each wear plate 1, each set of mounting assemblies being provided with a primary metal rubber 4, a secondary metal rubber 5 and a fastener 6. For both sets of mounting assemblies, a compressible volume is reserved axially and radially.
It will be understood by those skilled in the art that the foregoing description of quantities is exemplary only and is not intended to limit the present invention.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, 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 simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered 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 the terms have no special meanings unless otherwise stated, 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 (8)
1. The emergency supporting and guiding skid shoe suitable for the superconducting electric magnetic levitation of the low vacuum pipeline is characterized by comprising a wearing plate (1), a mounting assembly, a main metal rubber piece (4), an auxiliary metal rubber piece (5) and a fastening piece (6), wherein the lower surface of the wearing plate (1) is provided with an inclined plane which is used for being in contact with a track, the mounting assembly comprises a first mounting base (2) which is used for being connected with a suspension frame and a second mounting base (3) which is used for being connected with the wearing plate (1), the second mounting base (3) is arranged on the upper surface of the wearing plate (1), the upper end of the second mounting base (3) is provided with a main mounting groove, the lower end of the second mounting groove is provided with an auxiliary mounting groove, the bottom of the main mounting groove is communicated with the bottom of the auxiliary mounting groove through a through hole, and the main metal rubber piece (4) is arranged in the main mounting groove, vice metal rubber spare (5) set up in the vice mounting groove, first mounting base (2) are provided with the boss, the boss passes main metal rubber spare (4) gets into the through-hole, fastener (6) pass vice metal rubber spare (5) with the boss is connected.
2. Emergency support guide skid according to claim 1, characterised in that the main metal rubber (4) and the secondary metal rubber (5) are of circular ring structure, and that the inner diameter of the main metal rubber (4) is the same as the inner diameter of the secondary metal rubber (5), the outer diameter of the main metal rubber (4) is the same as the outer diameter of the secondary metal rubber (5), and that the height of the main metal rubber (4) is greater than the height of the secondary metal rubber (5).
3. Emergency support guide slipper according to claim 2, characterized in that the fastening element (6) is a fastening screw, the boss being provided with a threaded hole, the fastening screw being in a mating connection with the threaded hole.
4. Emergency support guide shoe according to claim 1, characterized in that the first mounting base (2) is connected to the suspension frame by means of a connection and the second mounting base (3) is connected to the wear plate (1) by means of a connection.
5. Emergency support guide shoe according to any one of claims 1-4, characterized in that the material of the wear plate (1) is austenitic stainless steel or a titanium alloy.
6. Emergency support guide shoe according to any one of claims 1-4, characterized in that the material of the first mounting base (2) and the second mounting base (3) is austenitic stainless steel or a titanium alloy.
7. Emergency support guide shoe according to any one of claims 1-4, characterized in that the material of the primary metal rubber (4) and the secondary metal rubber (5) is austenitic stainless steel wire or alloy wire.
8. Emergency support guide shoe according to any one of claims 1-4, characterized in that the material of the fastening element (6) is austenitic stainless steel or a titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123301276.8U CN216943080U (en) | 2021-12-23 | 2021-12-23 | Emergency support guide sliding shoe suitable for superconducting electric magnetic levitation of low-vacuum pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123301276.8U CN216943080U (en) | 2021-12-23 | 2021-12-23 | Emergency support guide sliding shoe suitable for superconducting electric magnetic levitation of low-vacuum pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216943080U true CN216943080U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123301276.8U Active CN216943080U (en) | 2021-12-23 | 2021-12-23 | Emergency support guide sliding shoe suitable for superconducting electric magnetic levitation of low-vacuum pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216943080U (en) |
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2021
- 2021-12-23 CN CN202123301276.8U patent/CN216943080U/en active Active
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