CN110406386B - Mechanical guide device for magnetic suspension sledge and magnetic suspension sledge with mechanical guide device - Google Patents
Mechanical guide device for magnetic suspension sledge and magnetic suspension sledge with mechanical guide device Download PDFInfo
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- CN110406386B CN110406386B CN201810383827.3A CN201810383827A CN110406386B CN 110406386 B CN110406386 B CN 110406386B CN 201810383827 A CN201810383827 A CN 201810383827A CN 110406386 B CN110406386 B CN 110406386B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/04—Magnetic suspension or levitation for vehicles
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Abstract
The invention provides a mechanical guide device for a magnetic suspension sledge and the magnetic suspension sledge with the mechanical guide device, wherein the mechanical guide device comprises a first sliding shoe group, a second sliding shoe group, a first guide rail and a second guide rail, and the first guide rail and the second guide rail are respectively composed of a first guide section, a second guide section and a third guide section which are sequentially connected; the first and second sets of shoes are movable only in a first direction when the first and second sets of shoes are engaged with the first guide sections of the first and second guide tracks, respectively; the first and second sets of shoes being movable in a first direction and rotatable about a second direction when the first and second sets of shoes are engaged with the second guide sections of the first and second guide tracks, respectively; the first and second shoe sets are movable in either direction when the first and second shoe sets are engaged with the third guide sections of the first and second guide rails, respectively. By applying the technical scheme of the invention, the technical problem that the guide rail in the prior art cannot meet the guiding requirement of the magnetic suspension sledge is solved.
Description
Technical Field
The invention relates to the technical field of space launching, in particular to a mechanical guide device for a magnetic suspension sled and the magnetic suspension sled with the mechanical guide device.
Background
The magnetic suspension sledge is separated from the guide rail by utilizing the electric suspension technology, so that the frictional resistance and vibration are eliminated, and high-speed low-resistance sliding is realized. The electric suspension adopts the electrodynamic force generated by the eddy current between the vehicle-mounted superconducting coil and the metal induction plate on the ground track to realize suspension and guidance, and the magnitude of the suspension and guidance force is in direct proportion to the movement speed of the sledge. When the sledge is in work, the sledge moves forwards approximately in uniform acceleration movement, and in the initial stage of the movement, the sledge speed is low, and the suspension force and the guiding force are small. However, the track structure commonly used in the prior art is not changed, and if the existing track is applied to the magnetic suspension sledge, the sledge under each running state cannot be effectively guided.
Disclosure of Invention
The invention provides a mechanical guide device for a magnetic suspension sled and the magnetic suspension sled with the mechanical guide device, which can solve the technical problem that a guide rail in the prior art cannot meet the guide requirement of the magnetic suspension sled.
According to an aspect of the present invention, there is provided a mechanical guide device for a magnetic levitation sled, the mechanical guide device comprising: the first sliding shoe group and the second sliding shoe group are symmetrically arranged on the left side and the right side of the magnetic suspension sledge; the first guide rail and the second guide rail are respectively composed of a first guide section, a second guide section and a third guide section which are sequentially connected; when the first slipper set and the second slipper set are respectively matched with the first guide sections of the first guide rail and the second guide rail, the first slipper set and the second slipper set can only move along a first direction; when the first slipper set and the second slipper set are respectively matched with the second guide sections of the first guide rail and the second guide rail, the first slipper set and the second slipper set can move along the first direction and rotate around the second direction; when the first and second shoe sets are engaged with the third guide sections of the first and second guide rails, respectively, the first and second shoe sets can move in any direction.
Further, the first and second shoe sets are located in the first guide section when the speed of the magnetic levitation sled is in a range of 20m/s to 25m/s, the first and second shoe sets are located in the second guide section when the speed of the magnetic levitation sled is in a range of 25m/s to 30m/s, and the first and second shoe sets are located in the third guide section when the speed of the magnetic levitation sled is in a range of 35m/s to 40 m/s.
Furthermore, the first skid shoe group comprises a first skid shoe and a second skid shoe, the first skid shoe and the second skid shoe are arranged on the left side of the magnetic suspension skid vehicle at intervals, the second skid shoe group comprises a third skid shoe and a fourth skid shoe, and the third skid shoe and the fourth skid shoe are arranged on the right side of the magnetic suspension skid vehicle at intervals.
According to yet another aspect of the present invention, there is provided a magnetic levitation sled having a mechanical guide device as described above.
Further, the magnetic levitation sledge comprises: the vehicle body is arranged between the first guide rail and the second guide rail; the first superconducting magnet group and the second superconducting magnet group are respectively arranged on the left side and the right side of the vehicle body; the first motor winding is arranged on the first guide rail, the second motor winding is arranged on the second guide rail, the first motor winding is arranged opposite to the first superconducting magnet group, and the second motor winding is arranged opposite to the second superconducting magnet group; the first suspension induction plate group is arranged on the first guide rail, the second suspension induction plate group is arranged on the second guide rail, the first suspension induction plate group is arranged opposite to the first superconducting magnet group, and the second suspension induction plate group is arranged opposite to the second superconducting magnet group; the magnetic suspension sledge drives the vehicle body to move forwards through the propelling force generated by the interaction of the first motor winding and the first superconducting magnet group and the interaction of the second motor winding and the second superconducting magnet group, and the magnetic suspension sledge drives the vehicle body to move on the first guide rail and the second guide rail in a non-contact mode through the suspending force and the guiding force generated by the interaction of the first suspension induction plate group and the first superconducting magnet group and the interaction of the second suspension induction plate group and the second superconducting magnet group.
Further, the first slipper shoe group is arranged at the bottom of the first superconducting magnet group, and the second slipper shoe group is arranged at the bottom of the second superconducting magnet group.
Further, the magnetic levitation sled further comprises a first fairing and a second fairing, and the first superconducting magnet group and the second superconducting magnet group are arranged between the first fairing and the second fairing.
Further, the first superconducting magnet group comprises a first superconducting magnet and a first superconducting coil, and the first superconducting coil is positioned in the first superconducting magnet; the second superconducting magnet group comprises a second superconducting magnet and a second superconducting coil, and the second superconducting coil is located in the second superconducting magnet.
Further, the distance between the bottom of the vehicle body and the ground is greater than 5m, and the distance between the first superconducting magnet group and the second superconducting magnet group is greater than 5 m.
Further, the magnetic suspension electromagnetic propulsion integrated carrying sled vehicle further comprises a first guide wheel and a second guide wheel, the first guide wheel is arranged at the bottom of the first superconducting magnet group, and the second guide wheel is arranged at the bottom of the second superconducting magnet group.
By applying the technical scheme of the invention, the mechanical guide device for the magnetic suspension sledge is provided, and the mechanical guide device can realize the sectional guide of the magnetic suspension sledge under different running states by configuring the first guide rail and the second guide rail to be composed of the first guide section, the second guide section and the third guide section which are sequentially connected, so that the stable motion posture of the magnetic suspension sledge and the stable connection of the sledge posture at the moment of off-track are ensured.
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 is a schematic diagram of a mechanical guide device for a magnetic levitation sled according to an embodiment of the present invention;
FIG. 2 illustrates a side view of a first guide section, a second guide section, and a third guide section provided in accordance with a particular embodiment of the present invention;
fig. 3 shows a top view of the first guide section, the second guide section and the third guide section provided in fig. 2;
FIG. 4 illustrates a schematic structural view of a first or second slipper set provided in accordance with a particular embodiment of the invention at a first guide segment;
FIG. 5 illustrates a schematic structural view of a first or second set of shoes provided in accordance with a particular embodiment of the present invention at the end of a first guide segment;
FIG. 6 illustrates a schematic structural view of the first or second slipper sets at a second guide segment provided in accordance with a specific embodiment of the invention;
FIG. 7 illustrates a schematic structural view of the first or second slipper sets at a third guide segment provided in accordance with a specific embodiment of the invention;
fig. 8 is a schematic structural diagram of a magnetic levitation sled according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
11. a first slipper set; 12. a second slipper set; 21. a first guide rail; 22. a second guide rail; 20a, a first guide section; 20b, a second guide section; 20c, a third guide section; 30. a vehicle body; 40. a first superconducting magnet group; 41. a first superconducting magnet; 42. a first superconducting coil; 50. a second superconducting magnet set; 51. a second superconducting magnet; 52. a second superconducting coil; 60. a first motor winding; 70. a second motor winding; 80. a first suspension induction plate group; 90. a second suspension induction plate group; 100. a first guide wheel; 110. a second guide wheel.
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 invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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.
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 to 7, according to an embodiment of the present invention, there is provided a mechanical guide device for a magnetic levitation sled, the mechanical guide device comprises a first sliding shoe group 11, a second sliding shoe group 12, a first guide rail 21 and a second guide rail 22, wherein the first sliding shoe group 11 and the second sliding shoe group 12 are symmetrically arranged at the left side and the right side of the magnetic suspension sledge, the first guide rail 21 is arranged opposite to the first sliding shoe group 11, the second guide rail 22 is arranged opposite to the second sliding shoe group 12, the first guide rail 21 and the second guide rail 22 have the same structure, the first guide rail 21 and the second guide rail 22 are respectively composed of a first guide section 20a, a second guide section 20b and a third guide section 20c which are sequentially connected, wherein the first and second slipper sets 11 and 12 are movable only in the first direction when the first and second slipper sets 11 and 12 are engaged with the first guide sections 20a of the first and second guide rails 21 and 22, respectively; when the first and second shoe sets 11 and 12 are engaged with the second guide sections 20b of the first and second guide rails 21 and 22, respectively, the first and second shoe sets 11 and 12 are movable in a first direction and rotatable about a second direction; when the first and second shoe sets 11 and 12 are engaged with the third guide sections 20c of the first and second guide rails 21 and 22, respectively, the first and second shoe sets 11 and 12 can move in any direction.
By applying the configuration mode, the mechanical guide device for the magnetic levitation sledge is provided, and the mechanical guide device can realize the sectional guide of the magnetic levitation sledge under different running states by configuring the first guide rail 21 and the second guide rail 22 to be composed of the first guide section 20a, the second guide section 20b and the third guide section 20c which are sequentially connected, so that the stable motion posture of the magnetic levitation sledge and the stable connection of the sledge posture at the moment of off-track are ensured.
Specifically, when the speed of the magnetic levitation sled is low, the levitation force and the guiding force are both small, and at this time, the first shoe set 11 and the second shoe set 12 are both located in the first guide segment 20a, and the first shoe set 11 and the second shoe set 12 are limited by the first guide segment 20a so that the magnetic levitation sled can move along the first direction; when the speed of the magnetic levitation sledge vehicle is gradually increased, because a certain distance exists between the thrust center line of the sledge vehicle and the barycenter of the sledge vehicle, the sledge vehicle has a certain pitching angle, at this time, the first sliding shoe group 11 and the second sliding shoe group 12 are both positioned in the second guide section 20b, and the first sliding shoe group 11 and the second sliding shoe group 12 are limited by the second guide section 20b so that the magnetic levitation sledge vehicle can move along the first direction and rotate around the second direction; when the suspension force and the guiding force of the magnetic levitation sledge are large enough, the first slipper set 11 and the second slipper set 12 are both located in the third guiding section 20c, all constraints on the sledge are removed by the guide rail, and the sledge and the guide rail are separated smoothly.
Further, in the present invention, when the speed of the magnetic levitation sled is in the range of 20m/s to 25m/s, the speed of the magnetic levitation sled is low, the levitation force and the guiding force are both small, the first shoe set 11 and the second shoe set 12 are both located in the first guiding section 20a, and the first shoe set 11 and the second shoe set 12 are limited by the first guiding section 20a so that the magnetic levitation sled can move along a first direction, where the first direction is a direction in which the magnetic levitation sled is launched; when the speed of the magnetic levitation sledge is in the range of 25m/s to 30m/s, and the sledge has a certain pitch angle, the first shoe set 11 and the second shoe set 12 are both located in the second guide section 20b, and the first shoe set 11 and the second shoe set 12 are limited by the second guide section 20b so that the magnetic levitation sledge can move along a first direction and rotate around a second direction, where the second direction is a horizontal direction, that is, the sledge can rotate around the horizontal direction; when the speed of the magnetic suspension sledge is within the range of 35m/s to 40m/s, the speed of the magnetic suspension sledge is high, the suspension force and the guiding force are both large, the sledge is not constrained by a guide rail, the first skid shoe set 11 and the second skid shoe set 12 are both located in the third guide section 20c, all constraints on the sledge are removed by the guide rail, and the stable separation of the sledge and the guide rail is realized.
As an embodiment of the present invention, as shown in fig. 2 and 3, the cross-sectional area of the third guiding section 20c is larger than that of the second guiding section 20b, and the cross-sectional area of the second guiding section 20b is larger than that of the first guiding section 20a, so that all degrees of freedom of the sled except for the direction of the sled are restricted by the first guiding section 20a, and the initial attitude of the sled is ensured to be stable; because the cross-sectional area of the second guide section 20b is larger than that of the first guide section 20a, when the sledge runs to the second guide section 20b, the sledge slowly starts to rotate clockwise on the guide rail under the action of thrust torque, and the phenomenon of head-up occurs; by setting the third guide section 20c to be in a 'bell mouth' shape, the guide rail gradually removes the transverse restraint of the sledge, so that the shape of the guide rail can adapt to the sledge to reasonably rotate, and the stable connection of the posture after the sledge leaves the rail is realized. In addition, the first slipper set 11 and the second slipper set 12 are small in size, capable of effectively reducing aerodynamic resistance, simple in structure and high in reliability.
Further, in the present invention, in order to increase the running stability of the magnetic levitation sledge, the first shoe set 11 may be configured to include a first shoe and a second shoe, the first shoe and the second shoe are spaced apart from each other and disposed on the left side of the magnetic levitation sledge, the second shoe set 12 includes a third shoe and a fourth shoe, and the third shoe and the fourth shoe are spaced apart from each other and disposed on the right side of the magnetic levitation sledge. Specifically, as shown in fig. 4, when the first shoe set or the second shoe set is at the first guide segment, the magnetic levitation sled can only move along the first direction; as shown in fig. 5, when the first shoe set or the second shoe set is at the end of the first guide section, the magnetic levitation sled will start to rotate clockwise on the guide rail under the action of the thrust torque; as shown in fig. 6, at this time, the first slipper set or the second slipper set is at the second guide segment, the magnetic levitation sled starts to rotate clockwise on the guide rail under the action of the thrust torque, and a "head-up" phenomenon occurs; as shown in fig. 7, at this time, the first slipper set or the second slipper set is at the third guide section, and the transverse constraint of the sledge is gradually released by the guide rail, so that the shape of the guide rail can adapt to the reasonable rotation of the sledge, and the stable connection of the posture after the skid leaves the rail is realized.
According to another aspect of the present invention, as shown in fig. 8, there is provided a magnetic levitation sled having a mechanical guide device, wherein the mechanical guide device of the magnetic levitation sled is the mechanical guide device as described above. The magnetic levitation sled comprises a vehicle body 30, a first superconducting magnet group 40, a second superconducting magnet group 50, a first motor winding 60, a second motor winding 70, a first levitation induction plate group 80 and a second levitation induction plate group 90, wherein the vehicle body 30 is arranged between a first guide rail 21 and a second guide rail 22, the first superconducting magnet group 40 and the second superconducting magnet group 50 are respectively arranged on the left side and the right side of the vehicle body 30, the first motor winding 60 is arranged on the first guide rail 21, the second motor winding 70 is arranged on the second guide rail 22, the first motor winding 60 is arranged opposite to the first superconducting magnet group 40, the second motor winding 70 is arranged opposite to the second superconducting magnet group 50, the first levitation induction plate group 80 is arranged on the first guide rail 21, the second levitation induction plate group 90 is arranged on the second guide rail 22, the first levitation induction plate group 80 is arranged opposite to the first superconducting magnet group 40, the second suspension induction plate group 90 is arranged opposite to the second superconducting magnet group 50; the vehicle body 30 is driven to move forward by a propelling force generated by interaction of the first motor winding 60 and the first superconducting magnet group 40 and interaction of the second motor winding 70 and the second superconducting magnet group 50, and the vehicle body 30 is driven to move on the first guide rail 21 and the second guide rail 22 in a non-contact manner by a levitation force and a guiding force generated by interaction of the first levitation induction plate group 80 and the first superconducting magnet group 40 and interaction of the second levitation induction plate group 90 and the second superconducting magnet group 50.
By applying the configuration mode, a magnetic levitation sled is provided, the magnetic levitation sled generates a levitation force through the interaction between the first levitation induction plate group 80 and the first superconducting magnet group 40 and the interaction between the second levitation induction group 90 and the second superconducting magnet group 50, generates a propelling force through the interaction between the first motor winding 60 and the first superconducting magnet group 40 and the interaction between the second motor winding 70 and the second superconducting magnet group 50, and can effectively reduce the mass, the volume and the economic cost of the carrying sled by enabling the levitation induction plate group and the motor windings to share one superconducting magnet group. In addition, the suspension induction plate group and the superconducting magnet group are used for generating the suspension force, compared with the method of generating the suspension force by using a permanent magnet mode in the prior art, the method has the advantages that the generated magnetic field is stronger, the suspension force is larger, and the method can be well suitable for the air flow field caused by high-speed running on the ground.
Further, in the present invention, the first slipper shoe set 11 is disposed at the bottom of the first superconducting magnet set 40, and the second slipper shoe set 12 is disposed at the bottom of the second superconducting magnet set 50. For the sake of simplicity of illustration, the mating relationship between the first slipper 90 and the first rail 21 and the second slipper 100 and the second rail 22 is not shown in the drawings of the present invention.
Further, in the present invention, in order to reduce the aerodynamic force (heat) caused by the high-speed running of the magnetic levitation sled, the magnetic levitation sled may be configured to further include a first fairing and a second fairing, and the first superconducting magnet group 40 and the second superconducting magnet group 50 are both disposed between the first fairing and the second fairing. Specifically, the first fairing is respectively connected with one end of the first superconducting magnet group 40 and one end of the second superconducting magnet group 50, the second fairing is respectively connected with the other end of the first superconducting magnet group 40 and the other end of the second superconducting magnet group 50, and aerodynamic force (heat) caused by high-speed running of the carrying skid can be effectively reduced through the action of the first fairing and the second fairing.
Further, in the present invention, the first superconducting magnet group 40 includes a first superconducting magnet 41 and a first superconducting coil 42, the first superconducting coil 42 is located within the first superconducting magnet 41; the second superconducting magnet set 50 includes a second superconducting magnet 51 and a second superconducting coil 52, the second superconducting coil 52 being located within the second superconducting magnet 51.
With this configuration, by disposing the first superconducting coil 42 in the first superconducting magnet 41 and the second superconducting coil 52 in the second superconducting magnet 51, the first superconducting magnet 41 and the second superconducting magnet 51 can provide necessary vacuum and low temperature environments for the first superconducting coil 42 and the second superconducting coil 52, respectively, and after a large current is applied to the first superconducting coil 42 and the second superconducting coil 52, a stable strong magnetic field can be generated in the first superconducting magnet group 40 and the second superconducting magnet group 50, which cooperates with the levitation induction plate group and the linear motor winding on the guideway to generate levitation and propulsion forces.
Further, in the present invention, in order to avoid the extra aerodynamic lift force caused by the gap flow, the distance from the bottom of the vehicle body 30 to the ground may be configured to be greater than 5 m; in order to reduce the relative force of the superconducting coils on both sides and reduce the structural load of the carrying skid, the distance between the first superconducting magnet set 40 and the second superconducting magnet set 50 may be configured to be greater than 5 m.
In addition, in the present invention, in order to prevent collision between the carrying sled and the track, the magnetically levitated electromagnetic propulsion integrated carrying sled may be configured to further include a first guide wheel 100 and a second guide wheel 110, the first guide wheel 100 is disposed at the bottom of the first superconducting magnet group 40, and the second guide wheel 110 is disposed at the bottom of the second superconducting magnet group 50.
In order to further understand the present invention, the mechanical guiding device for a magnetic levitation sled and the magnetic levitation sled according to the present invention will be described in detail with reference to fig. 1 to 8.
As an embodiment of the present invention, as shown in fig. 1 to 8, when a vehicle needs to be launched, the first superconducting coil 42 and the second superconducting coil 52 are first charged, after the first superconducting coil 42 and the second superconducting coil 52 are charged, a strong and stable magnetic field is generated, after alternating current is passed through the first motor winding 60 and the second motor winding 70, the magnetic field generated by the first motor winding 60 interacts with the magnetic field of the first superconducting magnet group 40, and the magnetic field generated by the second motor winding 70 interacts with the magnetic field of the second superconducting magnet group 50, so as to jointly generate a propelling force perpendicular to the paper surface and along a first direction, so as to propel the vehicle to start to move forward. At this time, the speed of the sledge is low, the suspension force and the guiding force are small, the first slipper set 11 and the second slipper set 12 are both located in the first guiding section 20a, and the first guiding section 20a limits the first slipper set 11 and the second slipper set 12 so that the magnetic levitation sledge can move along a first direction, wherein the first direction is the sledge launching direction; after the carrying sledge moves, the magnetic field of the first superconducting magnet group 40 can generate eddy currents in the first suspension induction plate group 80 of the suspension system, the magnetic field of the second superconducting magnet group 50 can generate eddy currents in the second suspension induction plate group 90 of the suspension system, the magnetic field generated by the eddy currents interacts with the first superconducting magnet group 40 and the second superconducting magnet group 50 respectively to generate suspension force in the vertical direction and transverse guiding force in the horizontal direction, at the moment, the first slipper group or the second slipper group is located in the second guiding section, the magnetic suspension sledge starts to rotate clockwise on the guide rail under the action of thrust torque, and the head-up phenomenon occurs. The faster the carrying sled is, the greater the levitation force and the guiding force, and when the levitation force exceeds the gravity of the carrying sled, the carrying sled is separated from the ground to enter a levitation state and moves in the track 10 in a non-contact manner. At the moment, the first sliding shoe group or the second sliding shoe group is located at the third guide section, and the transverse constraint of the sledge is gradually removed by the guide rail, so that the shape of the guide rail can adapt to the reasonable rotation of the sledge, and the stable connection of the posture after the guide rail leaves the track is realized. The guiding force ensures that the carrying sledge does not have large left-right deviation in the moving process, and ensures that the carrying sledge does not collide with the rails on two sides.
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 (10)
1. A mechanical guide device for a magnetic levitation sled, the mechanical guide device comprising:
the first sliding shoe group (11) and the second sliding shoe group (12) are symmetrically arranged at the left side and the right side of the magnetic suspension sledge;
the first guide rail (21) and the second guide rail (22), the first guide rail (21) is arranged opposite to the first sliding shoe set (11), the second guide rail (22) is arranged opposite to the second sliding shoe set (12), the first guide rail (21) and the second guide rail (22) are identical in structure, and the first guide rail (21) and the second guide rail (22) are respectively composed of a first guide section (20a), a second guide section (20b) and a third guide section (20c) which are connected in sequence;
wherein the first and second sets of shoes (11, 12) are only movable in a first direction when the first and second sets of shoes (11, 12) are mated with the first guide sections (20a) of the first and second guide rails (21, 22), respectively; the first and second slipper sets (11, 12) are movable in a first direction and rotatable about a second direction when the first and second slipper sets (11, 12) are engaged with the second guide sections (20b) of the first and second guide rails (21, 22), respectively; the first and second slipper sets (11, 12) are movable in any direction when the first and second slipper sets (11, 12) are engaged with the third guide sections (20c) of the first and second guide rails (21, 22), respectively;
the cross sectional area of the third guide section (20c) is larger than that of the second guide section (20b), the cross sectional area of the second guide section (20b) is larger than that of the first guide section (20a), all degrees of freedom of the sledge except for shooting are restrained through the first guide section (20a), and the stability of the initial posture of the sledge is ensured; because the cross-sectional area of the second guide section (20b) is larger than that of the first guide section (20a), when the sledge runs to the second guide section (20b), the sledge slowly starts to rotate clockwise on the guide rail under the action of thrust torque, and the phenomenon of head-up occurs; by setting the third guide section (20c) to be in a horn mouth shape, the guide rail gradually removes the transverse restraint of the sledge, so that the shape of the guide rail can adapt to the sledge to rotate reasonably, and the stable connection of the posture after the sledge leaves the rail is realized.
2. The mechanical guide device for a magnetic levitation sled according to claim 1, wherein the first and second sets of shoes (11, 12) are located within the first guide section (20a) when the speed of the magnetic levitation sled is in the range of 20 to 25m/s, wherein the first and second sets of shoes (11, 12) are located within the second guide section (20b) when the speed of the magnetic levitation sled is in the range of 25 to 30m/s, and wherein the first and second sets of shoes (11, 12) are located within the third guide section (20c) when the speed of the magnetic levitation sled is in the range of 35 to 40 m/s.
3. The mechanical guide device for magnetic levitation sledges according to claim 1 or 2, wherein the first skid shoe set (11) comprises a first skid shoe and a second skid shoe, the first skid shoe and the second skid shoe being spaced apart on the left side of the magnetic levitation sledge, and the second skid shoe set (12) comprises a third skid shoe and a fourth skid shoe, the third skid shoe and the fourth skid shoe being spaced apart on the right side of the magnetic levitation sledge.
4. A magnetic levitation sled having a mechanical guide device, wherein the mechanical guide device is the mechanical guide device of any one of claims 1-3.
5. The magnetic levitation sled of claim 4, comprising:
a vehicle body (30), the vehicle body (30) being disposed between a first rail (21) and a second rail (22);
a first superconducting magnet group (40) and a second superconducting magnet group (50), the first superconducting magnet group (40) and the second superconducting magnet group (50) being respectively disposed on the left and right sides of the vehicle body (30);
a first motor winding (60) and a second motor winding (70), the first motor winding (60) disposed on the first rail (21), the second motor winding (70) disposed on the second rail (22), the first motor winding (60) disposed opposite the first superconducting magnet group (40), the second motor winding (70) disposed opposite the second superconducting magnet group (50);
a first suspended induction plate group (80) and a second suspended induction plate group (90), wherein the first suspended induction plate group (80) is arranged on the first guide rail (21), the second suspended induction plate group (90) is arranged on the second guide rail (22), the first suspended induction plate group (80) is arranged opposite to the first superconducting magnet group (40), and the second suspended induction plate group (90) is arranged opposite to the second superconducting magnet group (50);
wherein the magnetic levitation sled drives the vehicle body (30) to move forwards through a propelling force generated by interaction of the first motor winding (60) and the first superconducting magnet group (40) and interaction of the second motor winding (70) and the second superconducting magnet group (50), and the magnetic levitation sled drives the vehicle body (30) to move on the first guide rail (21) and the second guide rail (22) in a non-contact manner through a levitation force and a guiding force generated by interaction of the first levitation induction plate group (80) and the first superconducting magnet group (40) and interaction of the second levitation induction plate group (90) and the second superconducting magnet group (50).
6. The magnetic levitation sled of claim 5, wherein the first slipper set (11) is disposed at a bottom of the first superconducting magnet set (40) and the second slipper set (12) is disposed at a bottom of the second superconducting magnet set (50).
7. The magnetic levitation sled of claim 5 further comprising first and second fairings, the first and second superconducting magnet sets (40, 50) each disposed between the first and second fairings.
8. The magnetic levitation sled of claim 7, wherein the first superconducting magnet set (40) comprises a first superconducting magnet (41) and a first superconducting coil (42), the first superconducting coil (42) being located within the first superconducting magnet (41); the second superconducting magnet set (50) comprises a second superconducting magnet (51) and a second superconducting coil (52), the second superconducting coil (52) being located within the second superconducting magnet (51).
9. The magnetic levitation sled of claim 5, wherein a bottom of the cart body (30) is a distance greater than 5m from ground, and a distance between the first superconducting magnet set (40) and the second superconducting magnet set (50) is greater than 5 m.
10. The magnetic levitation sled of claim 5, further comprising a first guide wheel (100) and a second guide wheel (110), the first guide wheel (100) being disposed at a bottom of the first superconducting magnet set (40), the second guide wheel (110) being disposed at a bottom of the second superconducting magnet set (50).
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| CN112406554B (en) * | 2020-11-24 | 2022-02-11 | 北京航空航天大学 | Three-stage buffering vibration reduction system and method for adapting to collision vibration of double-track suspended vehicle body |
| CN114400865A (en) * | 2021-12-08 | 2022-04-26 | 北京特种机械研究所 | Electromagnetic propulsion sliding prying vehicle body |
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| JP2985807B2 (en) * | 1996-12-26 | 1999-12-06 | 日本電気株式会社 | Maglev train vehicle |
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| CN100493948C (en) * | 2005-04-29 | 2009-06-03 | 哈尔滨工业大学 | Magnetic suspension thruster |
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