Magnet lateral vibration reduction anti-collision device for spaceflight superconducting electromagnetic emission

Abstract

The invention relates to the technical field of spaceflight superconducting electromagnetic emission, and discloses a magnet lateral vibration reduction anti-collision device for spaceflight superconducting electromagnetic emission. The device comprises a first lateral sliding plate, a second lateral sliding plate and vibration reduction anti-collision mechanisms, the first lateral sliding plate is arranged on the surface of a first ground module, the second lateral sliding plate is arranged on the surface of a second ground module, and the vibration reduction anti-collision mechanisms are symmetrically fixed to the two sides of a superconducting magnet so as to be connected with the superconducting magnet into a whole. The vibration reduction and collision prevention mechanism is matched with the first lateral sliding plate and the second lateral sliding plate to achieve lateral vibration reduction and collision prevention in the moving process of the superconducting magnet. Therefore, rigid body collision between the superconducting magnet and the ground module during transverse deviation can be prevented, the lateral impact load in the generation process can be relieved and attenuated, and the success rate of single emission is increased.

Description

Technical Field

[0001] The invention relates to the technical field of aerospace superconducting electromagnetic launch, and in particular to a magnet lateral vibration reduction and anti-collision device used for aerospace superconducting electromagnetic launch. Background Art

[0002] Space superconducting electromagnetic launch is to use the linear motor made of superconducting materials that have zero resistance in low temperature environment to propel rockets, aircraft and other carriers to a certain launch speed. In recent years, due to the advantages of no excitation power loss, high power density and high efficiency, superconducting linear motors have been gradually used in various aerospace boosters and high-frequency launches.

[0003] During the aerospace superconducting electromagnetic launch process, it is necessary to maintain a high dynamic and high-level acceleration boost force to ensure that the carrier is boosted to the target takeoff speed. During the boost process, the superconducting magnet is simultaneously subjected to loads from the ground module, the carrier, aerodynamics, and mechanical loads. In order to ensure the electromagnetic performance of the superconducting linear motor, the lateral clearance between the superconducting magnet and the ground module is generally maintained at the cm level. On the one hand, during the high-acceleration translation of the magnet in a narrow space, due to its complex mechanical environment and manufacturing and installation errors of various structural parts, it is easy to rub against the ground module, resulting in the failure of the boost launch. In severe cases, it may even cause quenching and damage the superconducting magnet; on the other hand, if the superconducting magnet collides with the ground module laterally during high-speed movement, it is easy to damage the ground module, and the replacement process of the ground module is complicated and costly.

[0004] Therefore, the superconducting magnet needs to be designed with a lateral vibration reduction and anti-collision device to maintain its own high-speed translation in space and prevent rigid collision between the magnet and the ground module, but there is no relevant lateral vibration reduction and anti-collision device in the prior art. Summary of the invention

[0005] The invention provides a magnet lateral vibration reduction and anti-collision device for aerospace superconducting electromagnetic launch, which can solve the technical problems in the prior art.

[0006] The present invention provides a magnet lateral vibration reduction and anti-collision device for aerospace superconducting electromagnetic launch, wherein the device comprises a first lateral slide plate, a second lateral slide plate and a vibration reduction and anti-collision mechanism, the first lateral slide plate is arranged on the surface of a first ground module, the second lateral slide plate is arranged on the surface of a second ground module, the vibration reduction and anti-collision mechanism is symmetrically fixed on both sides of a superconducting magnet to be connected to the superconducting magnet as a whole, and the vibration reduction and anti-collision mechanism cooperates with the first lateral slide plate and the second lateral slide plate to realize lateral vibration reduction and anti-collision during the movement of the superconducting magnet.

[0007] Preferably, the lateral vibration damping and anti-collision mechanism includes a rotating arm, a mounting base, a pin shaft, a vibration isolation unit, a hydraulic vibration isolation unit and a wear plate. The rotating arm and the mounting base are connected through the pin shaft so that the rotating arm and the mounting base rotate around the pin shaft. One end of the vibration isolation unit is connected to the inner surface of the rotating arm, and the other end is connected to the superconducting magnet. One end of the hydraulic vibration isolation unit is connected to the rotating arm, and the other end is connected to the superconducting magnet. The wear plate is connected to the rotating arm.

[0008] Preferably, the lateral vibration damping and anti-collision mechanism further comprises a cotter pin, and the cotter pin is arranged through the free end of the pin shaft to limit the axial freedom of the pin shaft.

[0009] Preferably, the vibration isolation unit is a vibration isolation spring, and the hydraulic vibration reduction unit is a hydraulic shock absorber.

[0010] Preferably, a cylindrical boss is provided on the inner surface of the rotating arm for mounting one end of the vibration isolation spring, and the other end of the vibration isolation spring is connected to the cylindrical boss on the surface of the superconducting magnet.

[0011] Preferably, a mounting seat for mounting a hydraulic shock absorber is provided at the end of the rotating arm, the small end of the hydraulic shock absorber is bolted to the mounting seat, and the large end of the hydraulic shock absorber is bolted to the mounting seat on the surface of the superconducting magnet.

[0012] Preferably, the outer surface of the rotating arm is provided with a hole connected to the wear plate, and the shaft structure protruding from the inner surface of the wear plate is connected to the hole on the outer surface of the rotating arm in a transition fit.

[0013] Preferably, the inner surface of the wear plate and the outer surface of the rotating arm are connected by adhesive reinforcement.

[0014] Preferably, the material of the wear plate is polytetrafluoroethylene.

[0015] Preferably, the outer contour of the wear plate is streamlined.

[0016] The above technical solution can not only prevent the superconducting magnet from colliding with the ground module when it deviates laterally, but also mitigate and attenuate the lateral impact load during the process, thereby improving the success rate of a single launch. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The included drawings are used to provide a further understanding of the embodiments of the present invention, which constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the text description, explain the principles of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of a magnet lateral vibration reduction and collision avoidance device for aerospace superconducting electromagnetic launch according to an embodiment of the present invention is shown;

[0019] Figure 2 A schematic diagram of a lateral slide plate according to an embodiment of the present invention is shown;

[0020] Figure 3 A top view of a superconducting magnet and a vibration reduction and anti-collision mechanism according to an embodiment of the present invention is shown;

[0021] Figure 4 A side view of a superconducting magnet and a vibration reduction and anti-collision mechanism according to an embodiment of the present invention is shown;

[0022] Figure 5 A schematic diagram of a vibration reduction and anti-collision mechanism according to an embodiment of the present invention is shown.

[0023] Description of Reference Numerals

[0024] 1 superconducting magnet; 21 first ground module; 22 second ground module;

[0025] 31 first lateral slide plate; 32 second lateral slide plate; 4 vibration reduction and anti-collision mechanism;

[0026] 41 rotating arm; 42 mounting seat; 43 pin shaft;

[0027] 44 cotter pin; 45 vibration isolation unit; 46 hydraulic vibration reduction unit; 47 wear plate. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0031] Figure 1 A schematic diagram of a magnet lateral vibration reduction and collision avoidance device for aerospace superconducting electromagnetic launch according to an embodiment of the present invention is shown.

[0032] like Figure 1 As shown, an embodiment of the present invention provides a magnet lateral vibration reduction and anti-collision device for aerospace superconducting electromagnetic launch, wherein the device includes a first lateral slide 31, a second lateral slide 32 and a vibration reduction and anti-collision mechanism 4, the first lateral slide 31 is arranged on the surface of the first ground module 21, and the second lateral slide 32 is arranged on the surface of the second ground module 22, the vibration reduction and anti-collision mechanism 4 is symmetrically fixed on both sides of the superconducting magnet 1 to be connected to the superconducting magnet 1 as a whole, and the vibration reduction and anti-collision mechanism 4 cooperates with the first lateral slide 31 and the second lateral slide 32 to realize lateral vibration reduction and anti-collision during the movement of the superconducting magnet 1.

[0033] The superconducting magnet can move at high speed under the electromagnetic thrust of the induced magnetic field generated by the module, and an interface for connecting with a carrier such as a rocket is reserved at the top of the superconducting magnet.

[0034] The above technical solution can not only prevent the superconducting magnet from colliding with the ground module when it deviates laterally, but also mitigate and attenuate the lateral impact load during the process, thereby improving the success rate of a single launch.

[0035] For example, the lateral vibration reduction and anti-collision mechanism can be symmetrically arranged at the upper and lower parts of both sides of the superconducting magnet, and connected to the superconducting magnet as a whole by bolts, and cooperate with the lateral slide plate arranged on the surface of the ground module to realize the high-speed translation and lateral vibration reduction and anti-collision effect of the superconducting magnet.

[0036] That is, the magnet lateral vibration reduction device described in the present invention can, on the one hand, attenuate the impact load between the magnet and the ground module, and on the other hand, guide the magnet to move at high speed.

[0037] According to one embodiment of the present invention, the lateral vibration damping and anti-collision mechanism includes a rotating arm 41, a mounting base 42, a pin shaft 43, a vibration isolation unit 45, a hydraulic vibration isolation unit 46 and a wear plate 47. The rotating arm 41 and the mounting base 42 are connected through the pin shaft 43, so that the rotating arm 41 and the mounting base 42 rotate around the pin shaft 43. One end of the vibration isolation unit 45 is connected to the inner surface of the rotating arm 41, and the other end is connected to the superconducting magnet 1. One end of the hydraulic vibration isolation unit 46 is connected to the rotating arm 41, and the other end is connected to the superconducting magnet 1. The wear plate 47 is connected to the rotating arm 41.

[0038] Among them, the rotating arm is provided with a mounting pin hole, and the mounting base is also provided with a corresponding mounting pin hole. The pin shaft passes through the pin holes of the rotating arm and the mounting base to connect the two as a whole. The rotating arm and the mounting base can rotate around the rotating shaft (pin shaft).

[0039] According to an embodiment of the present invention, the lateral vibration damping and anti-collision mechanism further includes a cotter pin 44 , and the cotter pin 44 is arranged to pass through the free end of the pin shaft 43 to limit the axial freedom of the pin shaft 43 .

[0040] Thereby, the pin shaft can be prevented from being separated from the rotating arm and the mounting base.

[0041] According to an embodiment of the present invention, the vibration isolation unit 45 is a vibration isolation spring, and the hydraulic vibration reduction unit 46 is a hydraulic shock absorber.

[0042] According to an embodiment of the present invention, a cylindrical boss is provided on the inner surface of the rotating arm 41 for mounting one end of the vibration isolation spring, and the other end of the vibration isolation spring is connected to the cylindrical boss on the surface of the superconducting magnet 1 .

[0043] That is, the cylindrical boss of the rotating arm is connected to the spring-mounted cylindrical boss on the side of the superconducting magnet through the vibration isolation spring.

[0044] According to one embodiment of the present invention, a mounting seat for mounting a hydraulic shock absorber is provided at the end of the rotating arm 41, the small end of the hydraulic shock absorber is bolted to the mounting seat, and the large end of the hydraulic shock absorber is bolted to the mounting seat on the surface of the superconducting magnet.

[0045] According to an embodiment of the present invention, a hole connected to the wear plate 47 is disposed on the outer surface of the rotating arm 41 , and a shaft structure protruding from the inner surface of the wear plate 47 is connected to the hole on the outer surface of the rotating arm 41 in a transition fit.

[0046] According to an embodiment of the present invention, the inner surface of the wear plate 47 and the outer surface of the rotating arm 41 are connected by adhesive reinforcement.

[0047] Thereby, the connection between the wearing plate and the swivel arm can be further strengthened.

[0048] According to an embodiment of the present invention, the wear plate 47 is made of polytetrafluoroethylene.

[0049] Those skilled in the art should understand that the above description of materials is merely exemplary and is not intended to limit the present invention. For example, other materials with low friction coefficient and no magnetic conductivity can also be applied to the present invention.

[0050] According to an embodiment of the present invention, the outer contour of the wear plate is streamlined. For example, the outer contour of the wear plate may be a streamlined shape with a gradual transition.

[0051] When the superconducting magnet deviates laterally during high-speed movement, the wear plate first contacts and slides with the lateral slide plate, and the rotating arm can rotate around the pin shaft under the lateral pressure of the wear plate, compressing the vibration isolation spring to alleviate the impact; the hydraulic shock absorber at one end of the rotating arm acts accordingly to consume vibration energy.

[0052] The magnet lateral vibration reduction and collision prevention device for aerospace superconducting electromagnetic launch according to the present invention is described below with reference to examples.

[0053] The magnet lateral vibration reduction and anti-collision device for aerospace superconducting electromagnetic emission of the present invention comprises a first lateral slide plate 31, a second lateral slide plate 32 and a vibration reduction and anti-collision mechanism 4, wherein the vibration reduction and anti-collision mechanism 4 is symmetrically arranged at the upper and lower parts of both sides of the superconducting magnet 1, and when the superconducting magnet 1 is laterally offset, the vibration reduction and anti-collision mechanism 4 cooperates with the first lateral slide plate 31 fixed to the first ground module 21 and the second lateral slide plate 32 fixed to the second ground module 22 to realize the vibration reduction and anti-collision function. The first and second ground modules interact with the superconducting magnet 1 to generate electromagnetic thrust, so that the superconducting magnet 1 can move at high speed.

[0054] The vibration reduction and anti-collision mechanism 4 includes a rotating arm 41 , a mounting seat 42 , a pin shaft 43 , a cotter pin 44 , a vibration isolation spring, a hydraulic shock absorber, and a wear plate 47 . The rotating arm 41 is connected to the mounting seat 42 through the pin shaft 43, so that the rotating arm 41 and the mounting seat can rotate around the pin shaft 43; the inner surface of the rotating arm 41 is provided with a cylindrical boss for mounting one end of the vibration isolation spring, and the other end of the vibration isolation spring is connected to the cylindrical boss on the surface of the superconducting magnet; one end of the rotating arm 41 is provided with a mounting seat for mounting the hydraulic shock absorber, which is bolted to the small end of the hydraulic shock absorber, and the large end of the hydraulic shock absorber is bolted to the mounting seat on the surface of the superconducting magnet; the wear plate 47 is made of a material with a low friction coefficient and non-magnetic conductivity, such as polytetrafluoroethylene, and its outer contour is streamlined; the protruding shaft structure on the inner surface of the wear plate 47 is transitionally connected to the outer surface hole of the rotating arm 41; the inner surface of the wear plate 47 and the outer surface of the rotating arm 41 are also connected by adhesive reinforcement.

[0055] When the superconducting magnet deviates laterally during high-speed movement, the wear plate 47 contacts and slides with the lateral slide plate 2, further squeezing the rotating arm 41 to compress the vibration isolation spring and the hydraulic shock absorber. The rotating arm 41 synchronously rotates around the pin shaft 43 to realize the lateral vibration reduction and anti-collision function of the superconducting magnet.

[0056] It can be seen from the above embodiments that the magnet lateral vibration reduction and anti-collision device of the present invention can not only prevent the magnet from colliding with the ground module when it deviates laterally, but also alleviate and attenuate the lateral impact load during the occurrence process, thereby improving the success rate of a single launch.

[0057] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0058] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0059] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A magnet lateral vibration reduction and anti-collision device for aerospace superconducting electromagnetic launch, characterized in that: The device comprises a first lateral slide, a second lateral slide and a vibration reduction and anti-collision mechanism. The first lateral slide is arranged on the surface of a first ground module, and the second lateral slide is arranged on the surface of a second ground module. The vibration reduction and anti-collision mechanism is symmetrically fixed on both sides of a superconducting magnet to be connected to the superconducting magnet as a whole. The vibration reduction and anti-collision mechanism cooperates with the first lateral slide and the second lateral slide to realize lateral vibration reduction and anti-collision during the movement of the superconducting magnet.

2. The device according to claim 1, characterized in that The lateral vibration damping and anti-collision mechanism includes a rotating arm, a mounting base, a pin shaft, a vibration isolation unit, a hydraulic vibration isolation unit and a wear plate. The rotating arm and the mounting base are connected through the pin shaft, so that the rotating arm and the mounting base rotate around the pin shaft. One end of the vibration isolation unit is connected to the inner surface of the rotating arm, and the other end is connected to the superconducting magnet. One end of the hydraulic vibration isolation unit is connected to the rotating arm, and the other end is connected to the superconducting magnet. The wear plate is connected to the rotating arm.

3. The device according to claim 2, characterized in that The lateral vibration damping and anti-collision mechanism also includes a split pin, which is arranged through the free end of the pin shaft to limit the axial freedom of the pin shaft.

4. The device according to claim 3, characterized in that The vibration isolation unit is a vibration isolation spring, and the hydraulic vibration reduction unit is a hydraulic shock absorber.

5. The device according to claim 4, characterized in that A cylindrical boss is provided on the inner surface of the rotating arm for mounting one end of the vibration isolation spring, and the other end of the vibration isolation spring is connected to the cylindrical boss on the surface of the superconducting magnet.

6. The device according to claim 5, characterized in that The end of the rotating arm is provided with a mounting seat for mounting a hydraulic shock absorber, the small end of the hydraulic shock absorber is bolted to the mounting seat, and the large end of the hydraulic shock absorber is bolted to the mounting seat on the surface of the superconducting magnet.

7. The device according to claim 6, characterized in that The outer surface of the rotating arm is provided with a hole connected to the wear plate, and the shaft structure protruding from the inner surface of the wear plate is transitionally connected with the hole on the outer surface of the rotating arm.

8. The device according to claim 7, characterized in that The inner surface of the wear plate and the outer surface of the rotating arm are connected by gluing and reinforcement.

9. The device according to claim 8, characterized in that The material of the wear plate is polytetrafluoroethylene.

10. The device according to claim 9, characterized in that The outer contour of the wear plate is streamlined.

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