Magnetic lateral damping crash avoidance device for aerospace superconducting electromagnetic launch

Abstract

The application relates to the field of aerospace superconducting electromagnetic launching technology and discloses a magnet lateral damping anti-collision device for aerospace superconducting electromagnetic launching. The device comprises a first lateral sliding plate, a second lateral sliding plate and a damping anti-collision mechanism. 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, the damping anti-collision mechanism is fixed on the two sides of a superconducting magnet in a symmetrical mode to be connected with the superconducting magnet as a whole, and the damping anti-collision mechanism cooperates with the first lateral sliding plate and the second lateral sliding plate to realize lateral damping anti-collision during the movement of the superconducting magnet. Therefore, not only can the rigid body collision between the superconducting magnet and the ground module be prevented when the superconducting magnet is horizontally deviated, but also the lateral impact load during the occurrence process can be mitigated and attenuated, and the success rate of single launching can be improved.

Description

Technical Field

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

[0002] Aerospace superconducting electromagnetic launch utilizes the characteristic that the resistance of superconducting materials becomes zero at low temperatures to create linear motors that propel rockets and other launch vehicles to a certain launch speed. In recent years, due to the advantages of superconducting linear motors, such as no excitation power loss, high power density, and high efficiency, they have been increasingly used in various high-frequency launches in aerospace.

[0003] During aerospace superconducting electromagnetic launch, a high-dynamic, high-volume acceleration boost is required to propel the launch vehicle to its target launch speed. During this boost, the superconducting magnet simultaneously bears loads from the ground module, the launch vehicle, aerodynamics, and mechanical components. To ensure the electromagnetic performance of the superconducting linear motor, the lateral clearance between the superconducting magnet and the ground module is typically maintained on the order of centimeters. On one hand, during high-acceleration translational motion within a confined space, the magnet's complex mechanical environment and manufacturing / installation errors in various structural components make it prone to scraping against the ground module, potentially leading to launch failure or even quench failure and damage to the superconducting magnet. On the other hand, if the superconducting magnet experiences lateral scraping or impact with the ground module during high-speed movement, it can easily damage the ground module, and replacing the ground module is a complex and costly process.

[0004] Therefore, superconducting magnets need to be designed with lateral vibration damping and anti-collision devices to maintain their high-speed translation in space and prevent rigid collisions between the magnet and the ground module. However, there are no relevant lateral vibration damping and anti-collision devices in the current technology. Summary of the Invention

[0005] This 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] This invention provides a lateral vibration reduction and anti-collision device for a superconducting electromagnetic launch in aerospace. The device includes a first lateral sliding plate, a second lateral sliding plate, and a vibration reduction and anti-collision mechanism. The first lateral sliding plate is disposed on the surface of a first ground module, and the second lateral sliding plate is disposed on the surface of a second ground module. The vibration reduction and anti-collision mechanism is symmetrically fixed on both sides of the superconducting magnet to be connected to the superconducting magnet as a whole. The vibration reduction and anti-collision mechanism, together with the first and second lateral sliding plates, realizes 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, a vibration isolation unit, a hydraulic vibration damping unit, and a wear plate. The rotating arm is connected to the mounting base via the pin, allowing the rotating arm and the mounting base to rotate around the pin. One end of the vibration isolation unit is connected to the inner surface of the rotating arm, and the other end is connected to a superconducting magnet. One end of the hydraulic vibration damping 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 includes a cotter pin, which is disposed through the free end of the pin shaft to restrict the axial degree of freedom of the pin shaft.

[0009] Preferably, the vibration isolation unit is a vibration isolation spring, and the hydraulic vibration damping unit is a hydraulic vibration damper.

[0010] Preferably, the inner surface of the rotating arm 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.

[0011] Preferably, the end of the rotating arm is provided with a mounting base for mounting a hydraulic damper, the small end of the hydraulic damper is bolted to the mounting base, and the large end of the hydraulic damper is bolted to the mounting base on the surface of the superconducting magnet.

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

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

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

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

[0016] The above technical solution can not only prevent rigid body collisions between the superconducting magnet and the ground module when the superconducting magnet deflects laterally, but also mitigate and attenuate the lateral impact load during the process, thereby improving the success rate of a single launch. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are provided to further illustrate embodiments of the invention and, together with the textual description, explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

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

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

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

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

[0023] Explanation of reference numerals in the attached figures

[0024] 1. Superconducting magnet; 21. First ground module; 22. Second ground module;

[0025] 31 First lateral sliding plate; 32 Second lateral sliding plate; 4 Vibration damping and anti-collision mechanism;

[0026] 41 Rotating arm; 42 Mounting base; 43 Pin;

[0027] 44 Cotter pin; 45 Vibration isolation unit; 46 Hydraulic vibration damping unit; 47 Wear plate. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

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

[0032] like Figure 1 As shown, this embodiment of the invention provides a lateral vibration reduction and anti-collision device for a superconducting electromagnetic launch in aerospace. The device includes a first lateral sliding plate 31, a second lateral sliding plate 32, and a vibration reduction and anti-collision mechanism 4. The first lateral sliding plate 31 is disposed on the surface of a first ground module 21, and the second lateral sliding plate 32 is disposed on the surface of a 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. The vibration reduction and anti-collision mechanism 4 cooperates with the first lateral sliding plate 31 and the second lateral sliding plate 32 to achieve 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 the top of the superconducting magnet has a reserved interface for connection with launch vehicles such as rockets.

[0034] The above technical solution can not only prevent rigid body collisions between the superconducting magnet and the ground module when the superconducting magnet deflects 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 damping and anti-collision mechanism can be symmetrically arranged on the upper and lower parts of both sides of the superconducting magnet, and connected to the superconducting magnet as a whole by bolts. It cooperates with the lateral sliding plate set on the surface of the ground module to realize the high-speed translation and lateral vibration damping and anti-collision function of the superconducting magnet.

[0036] In other words, the magnet lateral vibration damping device described in this invention can attenuate the impact load between the magnet and the ground module on the one hand, and guide the magnet to move at high speed on the other hand.

[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 43, a vibration isolation unit 45, a hydraulic vibration damping unit 46, and a wear plate 47. The rotating arm 41 is connected to the mounting base 42 through the pin 43, so that the rotating arm 41 and the mounting base 42 rotate around the pin 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 damping 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] 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 passes through the pin holes of the rotating arm and the mounting base to connect the two into a whole. The rotating arm and the mounting base can rotate around the rotating shaft (pin).

[0039] According to one embodiment of the present invention, the lateral vibration damping and anti-collision mechanism further includes a cotter pin 44, which is disposed through the free end of the pin 43 to restrict the axial degree of freedom of the pin 43.

[0040] This prevents the pin from detaching from the rotating arm and the mounting base.

[0041] According to one embodiment of the present invention, the vibration isolation unit 45 is a vibration isolation spring, and the hydraulic vibration damping unit 46 is a hydraulic vibration damper.

[0042] According to one 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, the end of the rotating arm 41 is provided with a mounting seat for mounting a hydraulic damper, the small end of the hydraulic damper is bolted to the mounting seat, and the large end of the hydraulic damper is bolted to the mounting seat on the surface of the superconducting magnet.

[0045] According to one embodiment of the present invention, the outer surface of the rotating arm 41 is provided with a hole for connecting with the wear plate 47, and the shaft structure protruding from the inner surface of the wear plate 47 is transitionally connected to the hole on the outer surface of the rotating arm 41.

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

[0047] This further strengthens the connection between the wear plate and the rotating arm.

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

[0049] Those skilled in the art will understand that the above description of materials is merely exemplary and not intended to limit the invention. For example, other materials with low coefficients of friction and non-magnetic properties can also be used in this invention.

[0050] According to one embodiment of the present invention, the outer contour of the wear plate is streamlined. For example, the outer contour of the wear plate can be a gradually transitioning streamlined shape.

[0051] When the superconducting magnet undergoes lateral displacement during high-speed movement, the wear plate first contacts and slides with the lateral sliding plate. Under the lateral pressure of the wear plate, the rotating arm can rotate around the pin shaft, compressing the vibration isolation spring to mitigate the impact. The hydraulic damper at one end of the rotating arm then acts to consume the vibration energy.

[0052] The magnet lateral vibration reduction and anti-collision device for aerospace superconducting electromagnetic launch described in this invention is described below with reference to examples.

[0053] The lateral vibration reduction and anti-collision device for aerospace superconducting electromagnetic launch according to the present invention includes a first lateral sliding plate 31, a second lateral sliding plate 32, and a vibration reduction and anti-collision mechanism 4. The vibration reduction and anti-collision mechanism 4 is symmetrically arranged on the upper and lower parts of both sides of the superconducting magnet 1. When the superconducting magnet 1 undergoes lateral displacement, the vibration reduction and anti-collision mechanism 4 cooperates with the first lateral sliding plate 31 fixed to the first ground module 21 and the second lateral sliding plate 32 fixed to the second ground module 22 to achieve the vibration reduction and anti-collision function. The first and second ground modules interact with the superconducting magnet 1 to generate electromagnetic thrust, enabling the superconducting magnet 1 to move at high speed.

[0054] The vibration damping and anti-collision mechanism 4 includes a rotating arm 41, a mounting base 42, a pin 43, a cotter pin 44, a vibration isolation spring, a hydraulic damper, and a wear plate 47. The rotating arm 41 and the mounting base 42 are connected by the pin 43, allowing the rotating arm 41 and the mounting base to rotate around the pin 43. 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. A mounting base for mounting the hydraulic vibration damper is provided at one end of the rotating arm 41, bolted to the small end of the hydraulic vibration damper, and the large end of the hydraulic vibration damper is bolted to the mounting base on the surface of the superconducting magnet. The wear plate 47 is made of a material with a low coefficient of friction and non-magnetic properties, such as polytetrafluoroethylene, and has a streamlined outer contour. The protruding shaft structure on the inner surface of the wear plate 47 is connected to the external surface of the rotating arm 41 via a transition fit. The inner surface of the wear plate 47 and the outer surface of the rotating arm 41 are also reinforced by adhesive bonding.

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

[0056] As can be seen from the above embodiments, the magnet lateral vibration reduction and anti-collision device of the present invention can not only prevent the magnet from colliding rigidly 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.

[0057] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

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

[0059] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A magnet lateral vibration damping and anti-collision device for aerospace superconducting electromagnetic launch, characterized in that, The device includes a first lateral sliding plate, a second lateral sliding plate, and a vibration damping and anti-collision mechanism. The first lateral sliding plate is disposed on the surface of a first ground module, and the second lateral sliding plate is disposed on the surface of a second ground module. The vibration damping and anti-collision mechanism is symmetrically fixed on both sides of the superconducting magnet to form a whole with the superconducting magnet. The vibration damping and anti-collision mechanism, together with the first and second lateral sliding plates, realizes lateral vibration damping and anti-collision during the movement of the superconducting magnet. The lateral vibration damping and anti-collision mechanism includes a rotating arm, a mounting base, a pin, a vibration isolation unit, a hydraulic vibration damping unit, and a wear plate. The rotating arm is connected to the mounting base through the pin, allowing the rotating arm and the mounting base to rotate around the pin. 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 damping 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.

2. The apparatus according to claim 1, characterized in that, The lateral vibration damping and anti-collision mechanism also includes a cotter pin, which is disposed through the free end of the pin shaft to restrict the axial degree of freedom of the pin shaft.

3. The apparatus according to claim 2, characterized in that, The vibration isolation unit is a vibration isolation spring, and the hydraulic vibration damping unit is a hydraulic vibration damper.

4. The apparatus according to claim 3, characterized in that, The inner surface of the rotating arm 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.

5. The apparatus according to claim 4, characterized in that, The rotating arm end is provided with a mounting base for installing a hydraulic vibration damper. The small end of the hydraulic vibration damper is bolted to the mounting base, and the large end of the hydraulic vibration damper is bolted to the mounting base on the surface of the superconducting magnet.

6. The apparatus according to claim 5, characterized in that, The outer surface of the rotating arm is provided with a hole for connecting to the wear plate, and the protruding shaft structure on the inner surface of the wear plate is connected to the hole on the outer surface of the rotating arm through a transition fit.

7. The apparatus according to claim 6, characterized in that, The inner surface of the wear plate is bonded to the outer surface of the rotating arm with adhesive.

8. The apparatus according to claim 7, characterized in that, The wear plate is made of polytetrafluoroethylene.

9. The apparatus according to claim 8, characterized in that, The outer contour of the wear plate is streamlined.

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