A superconducting magnetic levitation vehicle landing gear structure and suspension frame

Abstract

The present invention discloses a landing gear structure for a superconducting magnetic levitation vehicle, comprising: a first connecting rod, one end of which is hinged to a superconducting magnet, and the other end of which is hinged to the central axis of a running wheel; a second connecting rod, a first end of which is hinged to a superconducting magnet; a third connecting rod, one end of which is hinged to the central axis of a running wheel, and the other end of which is hinged to the second end of the second connecting rod, and the hinge point between the third connecting rod and the second connecting rod is a first hinge point; and a telescopic drive device, one end of which is hinged to the first hinge point, and the other end of which is hinged to the superconducting magnet. Compared with the prior art, the landing gear structure for a superconducting magnetic levitation vehicle provided by the present invention has a smaller axial load borne by the telescopic drive device, a smaller working stroke, a smaller size, and a smaller installation space required. The landing gear is arranged on a superconducting magnet, which reduces the influence of the spring deflection in the primary suspension device on the landing gear stroke, makes the landing gear more miniaturized, and simplifies the structure of the suspension frame.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic levitation vehicles, and in particular to a landing gear structure and a suspension frame of a superconducting magnetic levitation vehicle. Background Art

[0002] Superconducting magnets, made of superconducting materials, provide both levitation and traction for maglev vehicles. When the maglev vehicle is operating at low speeds, it lacks sufficient levitation force, and the vehicle's load is carried by the low-speed running gear. Once the vehicle reaches a certain speed, allowing it to levitate, the low-speed running gear retracts, allowing the vehicle to operate in a suspended state.

[0003] The low-speed running gear consists of running wheels and a landing gear, with the retraction and extension of the running wheels controlled by the landing gear. In existing technology, the landing gear is mounted on a frame. The deflection of the springs in the primary suspension system affects the landing gear's travel, hindering its miniaturization. Furthermore, a superconducting magnet suspension device is required on the suspension frame, making the structure relatively complex.

[0004] Therefore, how to develop a superconducting magnetic levitation vehicle landing gear structure to reduce the impact of the spring deflection in the primary suspension device on the landing gear travel, so as to miniaturize the landing gear and simplify the suspension frame structure is a technical problem that technicians in this field currently need to solve. Summary of the Invention

[0005] In view of this, the object of the present invention is to provide a superconducting magnetic levitation vehicle landing gear structure to reduce the influence of the spring deflection in the primary suspension device on the landing gear travel, thereby making the landing gear more compact;

[0006] Another object of the present invention is to provide a superconducting magnetic levitation vehicle suspension frame.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A superconducting magnetic levitation vehicle landing gear structure is provided on a superconducting magnet and is used to retract and extend running wheels. The superconducting magnets provided on both sides are connected by a superconducting magnet frame. A frame is provided on the superconducting magnet frame, and a suspension device is provided between the frame and the superconducting magnet frame, comprising:

[0009] a first connecting rod, one end of which is hinged to the superconducting magnet, and the other end of which is hinged to the central axis of the traveling wheel;

[0010] a second connecting rod, a first end of which is hinged to the superconducting magnet;

[0011] a third connecting rod, one end of which is hinged to the central axis of the traveling wheel, and the other end of which is hinged to the second end of the second connecting rod, and a hinge point between the third connecting rod and the second connecting rod being a first hinge point;

[0012] A telescopic drive device, one end of which is hinged to the first hinge point, and the other end of which is hinged to the superconducting magnet.

[0013] Optionally, the length of the third connecting rod is smaller than the length of the first connecting rod.

[0014] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear structure, the angle between the third connecting rod and the first connecting rod is an acute angle.

[0015] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear structure, when the running wheels are in the lowered position, the second connecting rod and the third connecting rod are located on the same straight line, so that the first hinge point is a dead point.

[0016] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear structure, when the running wheels are in the lowered position, the telescopic drive device is in a horizontal position.

[0017] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear structure, when the running wheels are in the retracted position, the angle between the second connecting rod and the third connecting rod is an acute angle or a right angle.

[0018] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear structure, the installation points of the two telescopic drive devices symmetrically arranged on one of the superconducting magnets are the same point.

[0019] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear structure, the telescopic drive device is a hydraulic cylinder, one end of the hydraulic cylinder is hinged to the first hinge point, and the other end of the hydraulic cylinder is hinged to the superconducting magnet.

[0020] The superconducting magnetic levitation vehicle landing gear structure provided by the present invention is arranged on a superconducting magnet and is used to retract and extend the running wheels. The superconducting magnets arranged on both sides are connected by a superconducting magnet frame. A frame is arranged on the superconducting magnet frame, and a suspension device is arranged between the frame and the superconducting magnet frame. The superconducting magnetic levitation vehicle landing gear structure provided by the present invention includes a first connecting rod, a second connecting rod, a third connecting rod and a telescopic drive device. Among them, one end of the first connecting rod is hinged to the superconducting magnet, and the other end is hinged to the central axis of the running wheel; the first end of the second connecting rod is hinged to the superconducting magnet; one end of the third connecting rod is hinged to the central axis of the running wheel, and the other end is hinged to the second end of the second connecting rod, and the hinge point between the third connecting rod and the second connecting rod is the first hinge point; the telescopic drive device is arranged between the first hinge point and the superconducting magnet, and one end of the telescopic drive device is hinged to the first hinge point, and the other end is hinged to the superconducting magnet.

[0021] The superconducting magnetic levitation vehicle landing gear structure provided by this invention features a telescopic drive mechanism positioned between a first hinge point and a superconducting magnet. One end of the telescopic drive mechanism is hinged to the first hinge point, and the other end is hinged to the superconducting magnet. Compared to existing technologies, mounting the landing gear on the superconducting magnet eliminates the impact of spring deflection in the primary suspension system on the landing gear's travel, facilitating miniaturization of the landing gear.

[0022] A superconducting magnetic levitation vehicle suspension frame comprises a superconducting magnetic levitation vehicle landing gear structure, wherein the superconducting magnetic levitation vehicle landing gear structure is the superconducting magnetic levitation vehicle landing gear structure as described in any one of the above items.

[0023] The superconducting magnetic levitation vehicle suspension frame disclosed in the present invention has the above-mentioned superconducting magnetic levitation vehicle landing gear structure, so its structure is more simplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of a partial structure of a suspension frame disclosed in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the landing gear disclosed in an embodiment of the present invention when the running wheels are in the lowered position. Figure 1 ;

[0027] Figure 3 This is a schematic diagram of the structure of the landing gear disclosed in an embodiment of the present invention when the running wheels are in the lowered position. Figure 2 ;

[0028] Figure 4 This is a schematic structural diagram of the landing gear disclosed in an embodiment of the present invention when the running wheels are in the retracted position;

[0029] Figure 5 This is a schematic structural diagram of the landing gear disclosed in an embodiment of the present invention when the running wheels are in the lowered position and the retracted position.

[0030] Figure 1-Figure 5 The meanings of the reference numerals in the figure are as follows:

[0031] 100 is a superconducting magnet;

[0032] 200 is the landing gear, 210 is the first connecting rod, 220 is the second connecting rod, 230 is the third connecting rod, 240 is the telescopic drive device, and 250 is the first hinge point;

[0033] 300 is the running wheel;

[0034] 400 is a superconducting magnet frame. DETAILED DESCRIPTION

[0035] The core of the present invention is to provide a superconducting magnetic levitation vehicle landing gear structure to reduce the influence of the spring deflection in the primary suspension device on the landing gear travel, thereby making the landing gear more miniaturized.

[0036] Another core of the present invention is to provide a superconducting magnetic levitation vehicle suspension frame.

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] like Figure 2 As shown, an embodiment of the present invention discloses a superconducting magnetic levitation vehicle landing gear structure, which is arranged on a superconducting magnet 100 and is used to retract and extend the running wheels 300, including a first connecting rod 210, a second connecting rod 220, a third connecting rod 230 and a telescopic driving device 240.

[0039] like Figure 1 As shown, the superconducting magnets 100 provide levitation and traction for the maglev vehicle. When the maglev vehicle is running at low speed, it cannot generate sufficient levitation force, so it relies on a low-speed running device to operate. When the vehicle reaches a certain speed and can be suspended, the low-speed running device can be retracted, allowing the vehicle to operate in a suspended state. The low-speed running device includes running wheels 300 and a landing gear 200, and the landing gear 200 is responsible for retracting and extending the running wheels 300. The superconducting magnets 100 on both sides are connected by a superconducting magnet frame 400. A frame is provided on the superconducting magnet frame 400, and a suspension device is provided between the frame and the superconducting magnet frame 400. The suspension device is used to buffer and absorb vibration and impact from the superconducting magnet and the track.

[0040] like Figure 1-Figure 3As shown, one end of the first connecting rod 210 is hinged to the superconducting magnet 100, i.e., the first connecting rod 210 can rotate along the hinge point with the superconducting magnet 100. The other end of the first connecting rod 210 is hinged to the central axis of the running wheel 300. The first end of the second connecting rod 220 is hinged to the superconducting magnet 100, i.e., the second connecting rod 220 can rotate along the hinge point with the superconducting magnet 100. One end of the third connecting rod 230 is hinged to the central axis of the running wheel 300, and the other end is hinged to the second end of the second connecting rod 220. The hinge point between the third connecting rod 230 and the second connecting rod 220 is a first hinge point 250. The telescopic drive device 240 is disposed between the first hinge point 250 and the superconducting magnet 100. One end of the telescopic drive device 240 is hinged to the first hinge point 250, and the other end is hinged to the superconducting magnet 100. It should be noted that there are multiple configuration options for the telescopic drive device 240 , which may be a hydraulic cylinder or a pneumatic cylinder, and the specific type is not limited here.

[0041] When the magnetic levitation vehicle is running at a low speed, the running wheel 300 needs to be lowered. At this time, the telescopic drive device 240 is in an extended state. The force of the telescopic drive device 240 acts on the first hinge point 250, causing the second connecting rod 220 to rotate around the hinge point with the superconducting magnet 100, thereby driving the third connecting rod 230 to rotate. The third connecting rod 230 drives the running wheel 300 to move downward, so that the running wheel 300 is in the lowered position.

[0042] When the magnetic levitation vehicle reaches a certain speed and can be suspended, the running wheel 300 needs to be retracted, and the telescopic drive device 240 is in a retracted state, pulling the first hinge point 250 to rotate, causing the second link 220 and the third link 230 to rotate, and the third link 230 drives the running wheel 300 to move upward until the running wheel 300 is retracted to the preset retracted position.

[0043] The superconducting magnetic levitation vehicle landing gear structure provided by the present invention has a telescopic drive device 240 disposed between a first hinge point 250 and a superconducting magnet 100. One end of the telescopic drive device 240 is hinged to the first hinge point 250, and the other end is hinged to the superconducting magnet 100. When the running wheels 300 are in the lowered and retracted positions, the axial load borne by the telescopic drive device 240 is reduced, the working stroke of the telescopic drive device 240 is reduced, the size of the telescopic drive device 240 is reduced, and the required installation space is reduced, thereby further miniaturizing the landing gear. Whether the superconducting magnetic levitation vehicle is operating at low speed or in suspension, the primary suspension device disposed between the frame and the superconducting magnet frame 400 is in a compressed state, that is, the primary suspension device only undergoes compression deformation. The range of variation of the spring deflection in the primary suspension device is small, which does not affect the travel of the landing gear 200, facilitates the miniaturization of the landing gear 200, and eliminates the need for a superconducting magnet suspension device.

[0044] like Figure 2 and Figure 3 As shown, in order to ensure that the running wheel 300 can be retracted to the stowed position, in a specific embodiment of the present invention, the length of the third connecting rod 230 is less than the length of the first connecting rod 210. At this time, the working stroke of the telescopic drive device 240 can be guaranteed, and the running wheel 300 can be retracted to the required stowed position.

[0045] like Figure 3 As shown, in a specific embodiment of the present invention, the angle between the third connecting rod 230 and the first connecting rod 210 is an acute angle. Regardless of whether the running wheel 300 is in the lowered position or the retracted position, the angle between the third connecting rod 230 and the first connecting rod 210 is an acute angle.

[0046] like Figure 2 As shown, when the running wheel 300 is in the lowered position, the second connecting rod 220 and the third connecting rod 230 are located on the same straight line, so that the first hinge point 250 is a dead point. By using the dead point position of the mechanism for load bearing, the load of the telescopic drive device 240 can be reduced, while ensuring the stability of the running wheel 300 in the lowered position.

[0047] like Figure 2 and Figure 3 As shown, when the running wheels 300 are in the lowered position, to further reduce the axial load on the telescopic drive device 240, based on the above embodiment, when the running wheels 300 are in the lowered position, the telescopic drive device 240 is in a horizontal or nearly horizontal state. At this time, the telescopic drive device 240 bears less axial load, with the primary load being borne by the second connecting rod 220 and the third connecting rod 230. This reduces the first operating stroke of the telescopic drive device 240, thereby reducing the size of the telescopic drive device 240 and the installation space. Of course, when the running wheels 300 are in the lowered position, the telescopic drive device 240 can also be installed at a certain angle, which can be adjusted according to actual circumstances by those skilled in the art.

[0048] like Figure 4 and Figure 5 As shown, when the running wheel 300 is in the retracted position, the angle between the second connecting rod 220 and the third connecting rod 230 is an acute angle or a right angle. At this time, the telescopic driving device 240 and each connecting rod only bear the load of the tire itself, and the load is relatively small.

[0049] like Figure 1 As shown, each superconducting magnetic levitation vehicle suspension frame is provided with four running wheels 300 , that is, four landing gears 200 . Two of the running wheels 300 are symmetrically arranged on one of the superconducting magnets 100 .

[0050] In a specific embodiment of the present invention, the telescopic driving device 240 is a hydraulic cylinder, one end of the hydraulic cylinder is hinged to the first hinge point 250 , and the other end of the hydraulic cylinder is hinged to the superconducting magnet 100 .

[0051] An embodiment of the present invention further discloses a superconducting magnetic levitation vehicle suspension frame, including the superconducting magnetic levitation vehicle landing gear structure disclosed in the above embodiment. Since the landing gear 200 is more miniaturized, the structure of the superconducting magnetic levitation vehicle suspension frame is more simplified, while having all the technical effects of the above-mentioned superconducting magnetic levitation vehicle landing gear structure. This article will not go into details here.

[0052] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0053] As used in this application and the claims, unless the context clearly indicates an exception, the terms "a," "an," "an," and / or "the" are not intended to refer to the singular and may include the plural, unless the context clearly indicates otherwise. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements. The phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, product, or apparatus that includes the elements.

[0054] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0055] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A superconducting magnetic levitation vehicle landing gear structure, arranged on a superconducting magnet (100), used for retracting and extending a running wheel (300), wherein the superconducting magnets (100) arranged on both sides are connected via a superconducting magnet frame (400), a frame is arranged on the superconducting magnet frame (400), and a suspension device is arranged between the frame and the superconducting magnet frame (400), characterized in that: include: A first connecting rod (210), one end of which is hinged to the superconducting magnet (100), and the other end of which is hinged to the central axis of the running wheel (300); a second connecting rod (220), a first end of which is hinged to the superconducting magnet (100); A third connecting rod (230), one end of which is hinged to the central axis of the running wheel (300), and the other end of which is hinged to the second end of the second connecting rod (220), and the hinge point between the third connecting rod (230) and the second connecting rod (220) is a first hinge point (250); a telescopic drive device (240), one end of the telescopic drive device (240) being hinged to the first hinge point (250), and the other end being hinged to the superconducting magnet (100); When the running wheel (300) is in the lowered position, the second connecting rod (220) and the third connecting rod (230) are located on the same straight line, so that the first hinge point (250) is a dead point; When the running wheel (300) is in the lowered position, the telescopic driving device (240) is in a horizontal position.

2. The superconducting magnetic levitation vehicle landing gear structure according to claim 1, characterized in that: The length of the third connecting rod (230) is smaller than the length of the first connecting rod (210).

3. The superconducting magnetic levitation vehicle landing gear structure according to claim 2, characterized in that: The included angle between the third connecting rod (230) and the first connecting rod (210) is an acute angle.

4. The superconducting magnetic levitation vehicle landing gear structure according to claim 1, characterized in that: When the running wheel (300) is in the retracted position, the angle between the second connecting rod (220) and the third connecting rod (230) is an acute angle or a right angle.

5. The superconducting magnetic levitation vehicle landing gear structure according to claim 1, characterized in that: The installation points of the two telescopic drive devices (240) symmetrically arranged on one of the superconducting magnets (100) are the same point.

6. The superconducting magnetic levitation vehicle landing gear structure according to claim 4, characterized in that: The telescopic drive device (240) is a hydraulic cylinder, one end of the hydraulic cylinder is hinged to the first hinge point (250), and the other end of the hydraulic cylinder is hinged to the superconducting magnet (100).

7. A superconducting magnetic levitation vehicle suspension frame, including a superconducting magnetic levitation vehicle landing gear structure, characterized in that: The superconducting magnetic levitation vehicle landing gear structure is the superconducting magnetic levitation vehicle landing gear structure according to any one of claims 1 to 6.

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