A superconducting magnetic levitation vehicle landing gear mounting structure

Abstract

The present invention discloses a superconducting magnetic levitation vehicle landing gear mounting structure, which is used to mount the landing gear on a suspension frame. The suspension frame includes components such as a superconducting magnet frame and a structure. The superconducting magnet frame is used to connect the superconducting magnets on both sides. The structure and the superconducting magnet frame are connected by a primary suspension device. The structure is characterized in that: the landing gear is provided on the superconducting magnet and is used to retract and extend the running wheels; the landing gear is fixedly mounted on the superconducting magnet through the mounting assembly. The superconducting magnetic levitation vehicle landing gear mounting structure provided by the present invention has the landing gear mounted on the superconducting magnet, thereby avoiding the influence of the deflection of the primary suspension device on the landing gear stroke, and there is no need to set a superconducting magnet suspension device.

Description

Technical Field

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

[0002] The suspension frame is the running component of the maglev vehicle and includes components such as the superconducting magnet frame and the track. The track is the primary load-bearing component of the suspension frame and provides the foundation for the equipment. The primary suspension device, installed between the superconducting magnet frame and the track, cushions and absorbs vibration and impact between the superconducting magnet and the track.

[0003] When a maglev vehicle is operating at low speeds, it lacks sufficient levitation force and relies on a low-speed running gear to operate in a non-suspended state. Once the vehicle reaches a certain speed, allowing it to levitate, the low-speed running gear can be retracted, returning the vehicle to a suspended state. The low-speed running gear consists of running wheels and a landing gear, which is used to retract and extend the running wheels.

[0004] In the prior art, the landing gear is mounted on a frame, and the deflection of the spring in the primary suspension device affects the travel of the landing gear, hindering its miniaturization. Furthermore, a superconducting magnet suspension device is required on the suspension frame, making the structure relatively complex.

[0005] Therefore, how to install the landing gear of a superconducting magnetic levitation vehicle to reduce the influence 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

[0006] In view of this, the object of the present invention is to provide a superconducting magnetic levitation vehicle landing gear mounting structure to avoid the influence of the deflection of the spring in the primary suspension device on the landing gear stroke, so as to miniaturize the landing gear and simplify the structure of the 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 mounting structure is used to mount the landing gear on a suspension frame. The suspension frame includes a superconducting magnet frame, a structure, and a superconducting magnet. The superconducting magnet frame is used to connect the superconducting magnets on both sides, and a suspension device is provided between the structure and the superconducting magnet frame, including:

[0009] The landing gear is mounted on the superconducting magnet and is used to retract and extend the running wheels;

[0010] The landing gear is fixedly mounted on the superconducting magnet via a mounting assembly.

[0011] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear mounting structure, the number of the landing gears is four, the number of the superconducting magnets is two, two of the landing gears are set on one of the superconducting magnets and arranged symmetrically, and the other two landing gears are symmetrically set on the other superconducting magnet.

[0012] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear mounting structure, the mounting assembly includes:

[0013] a fixing bracket, through which the landing gear is fixed to the superconducting magnet;

[0014] A pull rod, wherein a first end of the pull rod is connected to the first end of the fixing bracket, and a second end of the pull rod is connected to the superconducting magnet.

[0015] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear mounting structure, first rubber joints are provided at both ends of the pull rod, the first end of the pull rod is connected to the fixed bracket through one of the first rubber joints, and the second end is connected to the superconducting magnet through another first rubber joint.

[0016] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear mounting structure, mounting holes for interference fit with the first rubber joint are formed at both ends of the pull rod, and the first rubber joint is connected to the superconducting magnet via a connector.

[0017] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear mounting structure, the landing gear includes:

[0018] A connecting rod, one end of which is hinged to the second end of the fixing bracket, and the other end of which is hinged to the central axis of the traveling wheel;

[0019] A telescopic driving device has one end hinged to the first end of the fixed bracket and the other end hinged to the traveling wheel.

[0020] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear mounting structure, second rubber joints are provided at both ends of the fixing bracket, and the fixing bracket is connected to the superconducting magnet via the second rubber joints.

[0021] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear mounting structure, mounting holes for interference fit with the second rubber joint are opened at both ends of the fixing bracket, and the second rubber joint is connected to the superconducting magnet via a fixing piece.

[0022] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear mounting structure, the fixing member is a fixing seat, the core shaft of the second rubber joint is cooperatively connected with a mounting hole provided on the fixing seat, and the fixing seat is fixedly provided on the superconducting magnet.

[0023] Optionally, in the above-mentioned superconducting magnetic levitation vehicle landing gear mounting structure, the telescopic drive device is a hydraulic cylinder, one end of the hydraulic cylinder is hinged to the running wheel, and the other end of the hydraulic cylinder is hinged to the first end of the fixed bracket.

[0024] The superconducting magnetic levitation vehicle landing gear mounting structure provided by the present invention is used to mount the landing gear on a suspension frame. The suspension frame includes a superconducting magnet frame, a structure and a superconducting magnet. The superconducting magnet frame is used to connect the superconducting magnets on both sides. A series of suspension devices are provided between the structure and the superconducting magnet frame. The superconducting magnetic levitation vehicle landing gear mounting structure provided by the present invention includes a landing gear and a mounting assembly. The landing gear is mounted on the superconducting magnet through the mounting assembly and is used to retract and extend the running wheels. The superconducting magnetic levitation vehicle landing gear mounting structure provided by the present invention has a landing gear mounted on a superconducting magnet, which avoids the influence of the deflection of the spring in the series of suspension devices on the landing gear stroke, is conducive to the miniaturization of the landing gear, and does not require the provision of a superconducting magnet suspension device, thereby simplifying the structure of the suspension frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 This is a schematic diagram of the landing gear installation structure of a superconducting magnetic levitation vehicle disclosed in an embodiment of the present invention.

[0027] Figure 1 The meanings of the reference numerals in the figure are as follows:

[0028] 100 is the landing gear, 110 is the connecting rod, and 120 is the telescopic drive device;

[0029] 210 is a superconducting magnet frame, 220 is a superconducting magnet;

[0030] 300 is the running wheel;

[0031] 400 is a mounting assembly, 410 is a fixing bracket, 420 is a pull rod, 430 is a first rubber joint, and 440 is a second rubber joint. DETAILED DESCRIPTION

[0032] The core of the present invention is to provide a superconducting magnetic levitation vehicle landing gear mounting structure to avoid the influence of the deflection of the spring in the primary suspension device on the landing gear stroke, so as to miniaturize the landing gear and simplify the structure of the suspension frame.

[0033] 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.

[0034] like Figure 1 As shown, an embodiment of the present invention discloses a superconducting magnetic levitation vehicle landing gear mounting structure, which is used to mount a landing gear 100 on a suspension frame, and includes a landing gear 100 and a mounting assembly 400 .

[0035] It should be noted that the suspension frame is the running component of the maglev vehicle and includes components such as the superconducting magnet frame 210, the structure, and the superconducting magnets 220. The superconducting magnet frame 210 is used to connect the superconducting magnets 220 on both sides. A primary suspension device is installed between the structure and the superconducting magnet frame 210 to buffer and absorb vibration and impact between the superconducting magnets and the track. Specifically, the primary suspension device can use rubber springs, steel springs, or air springs. The specific type is not limited and can be selected by those skilled in the art based on actual conditions.

[0036] When the superconducting magnetic levitation vehicle is operating at low speeds, it cannot generate sufficient levitation force, so it relies on a low-speed running device to operate in a non-suspended state. When the superconducting magnetic levitation vehicle reaches a certain speed and can be suspended, the low-speed running device can be retracted, allowing the superconducting magnetic levitation vehicle to operate in a suspended state. The low-speed running device includes a landing gear 100 and running wheels 300, with the landing gear 100 being used to retract and extend the running wheels 300. The landing gear 100 is mounted on the superconducting magnet 220 via a mounting assembly 400. Regardless of 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 210 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 100, facilitating the miniaturization of the landing gear 100 and eliminating the need for a superconducting magnet suspension device.

[0037] In the prior art, the landing gear 100 is arranged on the frame. When the superconducting magnetic levitation vehicle runs at a low speed, the supporting force on the running wheel 300 is transmitted along the running wheel 300, the landing gear 100, and the frame, causing the primary suspension device to be in a stretched state. A set of superconducting magnet hanging devices is required to suspend the superconducting magnet 220 and the superconducting magnet frame 210 for operation. When the superconducting magnetic levitation vehicle is in a suspended operation, the primary suspension device is in a compressed state. The deflection variation range of the primary suspension device is relatively large, which increases the retraction and extension stroke of the landing gear 100 and is not conducive to the miniaturization of the landing gear 100.

[0038] The superconducting magnetic levitation vehicle landing gear mounting structure disclosed in an embodiment of the present invention includes a landing gear 100 and a mounting assembly 400. The landing gear 100 is mounted on a superconducting magnet 220 via the mounting assembly 400 for retracting and extending the running wheels 300. The superconducting magnetic levitation vehicle landing gear mounting structure provided by the present invention, in which the landing gear 100 is mounted on the superconducting magnet 220, avoids the influence of the deflection of the spring in the primary suspension device on the travel of the landing gear 100, facilitates the miniaturization of the landing gear 100, and eliminates the need for a superconducting magnet suspension device, simplifying the structure of the suspension frame.

[0039] like Figure 1 As shown, the landing gear mounting structure of the superconducting magnetic levitation vehicle disclosed in the embodiment of the present invention has four running wheels 300, corresponding to four landing gears 100, two superconducting magnets 220, and two of them are respectively arranged on both sides, wherein two landing gears 100 are arranged on one of the superconducting magnets 220 and are symmetrically arranged in the middle of the superconducting magnet 220, and the other two landing gears 100 are symmetrically arranged on the other superconducting magnet 220. The arrangement of the landing gear 100 in the middle of the superconducting magnet 220 can reduce the bending moment borne by the superconducting magnet 220. It should be noted that in order to ensure that the superconducting magnetic levitation vehicle can operate stably when running at low speed, the two landing gears 100 arranged on one of the superconducting magnets 220 are arranged at a certain distance from each other, and the specific distance is determined by those skilled in the art according to actual conditions.

[0040] In a specific embodiment of the present invention, the mounting assembly 400 includes a fixed bracket 410 and a pull rod 420. The landing gear 100 is fixed to the superconducting magnet 220 through the fixed bracket 410, and the fixed bracket 410 is arranged vertically (perpendicular to the extension direction of the superconducting magnet 220). The first end of the pull rod 420 is connected to the first end of the fixed bracket 410, and the second end is connected to the superconducting magnet 220, thereby improving the stress state of the fixed bracket 410. Specifically, the pull rod 420 can be fixed in a manner that cooperates with the pull rod seat. The pull rod seat is provided on the superconducting magnet 220. The pull rod seat can be connected by bolts or fixed to the superconducting magnet 220 by welding. The connection between the fixed bracket 410 and the superconducting magnet 220 can be achieved by welding or by fixing with fasteners.

[0041] like Figure 1As shown, in one embodiment of the present invention, first rubber joints 430 are provided at both ends of a tie rod 420. Specifically, the first rubber joints 430 are metal-rubber components, comprising a core shaft, rubber disposed outside the core shaft, and a metal outer sleeve disposed outside the rubber. The outer sleeve is made of metal, and the first rubber joints 430 can be integrally vulcanized. The first end of the tie rod 420 is connected to the fixing bracket 410 via one of the first rubber joints 430, and the second end of the tie rod 420 is connected to the superconducting magnet 220 via another first rubber joint 430. Specifically, the first end of the tie rod 420 can be secured to the landing gear 100 by mating the core shaft with a mounting hole provided on the landing gear 100.

[0042] To ensure a secure connection between the first rubber joint 430 and the pull rod 420, based on the above embodiment, the first rubber joint 430 and the pull rod 420 are connected by an interference fit. The pull rod 420 has mounting holes at both ends that are interference-fit with the first rubber joint 430. This interference fit provides a simple and secure connection. The first rubber joint 430 is connected to the superconducting magnet 220 via a connector. Specifically, the core shaft of the first rubber joint 430 mates with the connector, and the connector and the superconducting magnet 220 can be secured by bolts or welding.

[0043] like Figure 1 As shown, in a specific embodiment of the present invention, the landing gear 100 includes a connecting rod 110 and a telescopic drive device 120. One end of the connecting rod 110 is hinged to the second end of the fixed bracket 410, meaning that the connecting rod 110 can rotate along the second end of the fixed bracket 410. The other end of the connecting rod 110 is hinged to the central axis of the running wheel 300. The telescopic drive device 120 has one end hinged to the first end of the fixed bracket 410 and the other end hinged to the central axis of the running wheel 300, providing power for retracting and lowering the running wheel 300. Specifically, the telescopic drive device 120 can be a hydraulic cylinder or a pneumatic cylinder.

[0044] When the superconducting magnetic levitation vehicle runs at a low speed, the running wheel 300 needs to be lowered, the telescopic drive device 120 extends to provide power, and the connecting rod 110 rotates downward around the second end of the fixed bracket 410, so that the running wheel 300 is in a lowered state; when the superconducting magnetic levitation vehicle runs in suspension, the telescopic drive device 120 contracts, and the connecting rod 110 rotates upward around the second end of the fixed bracket 410, so that the running wheel 300 is in a retracted state.

[0045] like Figure 1 As shown, based on the above embodiment, second rubber joints 440 are provided at both ends of the fixing bracket 410, and the fixing bracket 410 is connected to the superconducting magnet 220 through the second rubber joints 440. Specifically, the structure of the second rubber joint 440 is the same as that of the first rubber joint 430.

[0046] Based on the above embodiment, mounting holes are defined at both ends of the fixing bracket 410 for an interference fit with the second rubber joint 440. The fixing bracket 410 is connected to the superconducting magnet 220 by mating the core shaft of the second rubber joint 440 with a fixing member provided on the superconducting magnet. In a specific embodiment of the present invention, the fixing member is a fixing seat, which is fixedly mounted on the superconducting magnet 220 and defines a mounting hole that mates with the core shaft of the second rubber joint 440. Specifically, the fixing seat can be fixed to the superconducting magnet 220 by welding or by fastening with a fastener.

[0047] In a specific embodiment of the present invention, the telescopic driving device 120 is a hydraulic cylinder, one end of the hydraulic cylinder is hinged to the central axis of the traveling wheel 300 , and the other end of the hydraulic cylinder is hinged to the first end of the fixing bracket 410 .

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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 mounting structure, used for mounting a landing gear (100) on a suspension frame, wherein the suspension frame comprises a superconducting magnet frame (210), a structure, and a superconducting magnet (220), wherein the superconducting magnet frame (210) is used to connect the superconducting magnets (220) on both sides, and a suspension device is provided between the structure and the superconducting magnet frame (210), characterized in that: include: The landing gear (100) is installed on the superconducting magnet (220) and is used to retract and extend the running wheels (300). The number of the landing gears (100) is four, and the number of the superconducting magnets (220) is two. Two landing gears (100) are arranged on one of the superconducting magnets (220) and are symmetrically arranged, and the other two landing gears (100) are symmetrically arranged on the other superconducting magnet (220). A mounting assembly (400), wherein the landing gear (100) is fixedly mounted on the superconducting magnet (220) via the mounting assembly (400), wherein the mounting assembly (400) comprises a fixing bracket (410) and a pull rod (420), wherein the landing gear (100) is fixed to the superconducting magnet (220) via the fixing bracket (410); a first end of the pull rod (420) is connected to a first end of the fixing bracket (410), and a second end is connected to the superconducting magnet (220); and first rubber joints (430) are provided at both ends of the pull rod (420), wherein the first end of the pull rod (420) is connected to the fixing bracket (410) via one of the first rubber joints (430), and the second end is connected to the superconducting magnet (220) via another of the first rubber joints (430).

2. The superconducting magnetic levitation vehicle landing gear mounting structure according to claim 1, characterized in that: Mounting holes for interference fit with the first rubber joint (430) are provided at both ends of the pull rod (420), and the first rubber joint (430) is connected to the superconducting magnet (220) via a connecting piece.

3. The superconducting magnetic levitation vehicle landing gear mounting structure according to claim 1, characterized in that: The landing gear (100) comprises: A connecting rod (110), one end of which is hinged to the second end of the fixed bracket (410), and the other end of which is hinged to the central axis of the running wheel (300); A telescopic driving device (120) has one end hinged to the first end of the fixed bracket (410) and the other end hinged to the running wheel (300).

4. The superconducting magnetic levitation vehicle landing gear mounting structure according to claim 1, characterized in that: Second rubber joints (440) are provided at both ends of the fixing bracket (410), and the fixing bracket (410) is connected to the superconducting magnet (220) via the second rubber joints (440).

5. The superconducting magnetic levitation vehicle landing gear mounting structure according to claim 4, characterized in that: Mounting holes for interference fit with the second rubber joint (440) are provided at both ends of the fixing bracket (410), and the second rubber joint (440) is connected to the superconducting magnet (220) via a fixing member.

6. The superconducting magnetic levitation vehicle landing gear mounting structure according to claim 5, characterized in that: The fixing member is a fixing seat, the core shaft of the second rubber joint (440) is matched and connected with a mounting hole provided on the fixing seat, and the fixing seat is fixedly provided on the superconducting magnet (220).

7. The superconducting magnetic levitation vehicle landing gear mounting structure according to claim 3, characterized in that: The telescopic drive device (120) is a hydraulic cylinder, 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 first end of the fixed bracket (410).

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