Vacuum chamber positioning and calibrating structure for rocket electromagnetic ejection track

Abstract

The utility model discloses a vacuum chamber positioning calibration structure for a rocket electromagnetic ejection track, which comprises a vacuum chamber and a fixed seat, the vacuum chamber comprises a plurality of vacuum pipelines which are sequentially spliced in a sealing way along the axial direction of the vacuum chamber, and any two adjacent vacuum pipelines are connected through a flexible pipe; the two ends, in the axial direction, of the flexible pipe are fixedly connected with the corresponding ends of the adjacent vacuum pipelines in a sealed mode respectively, and an axial supporting part and a radial supporting part are arranged on the outer wall face of each vacuum pipeline at intervals. The fixing base comprises a plurality of fixing frames which are sequentially and fixedly spliced in the height direction of the fixing base, and each fixing frame is fixedly arranged on the periphery of the corresponding vacuum pipeline in a sleeving mode and provided with an axial installation part and a radial installation part. An axial adjusting piece is arranged on each axial mounting part, and a radial adjusting piece is arranged on each radial mounting part, so that the fixing position of the vacuum pipeline relative to the fixing frame is adjusted in the axial direction and the radial direction. The device has the advantages of being simple in structure, convenient to install and adjust and good in sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pipeline technology, and in particular to a vacuum chamber positioning and calibration structure for rocket electromagnetic catapult tracks. Background Technology

[0002] With the rapid development of commercial aerospace technology, electromagnetic catapult rockets have been widely used due to their advantages of lower launch costs and the ability to launch at high frequencies. The core of electromagnetic catapult technology is to provide initial acceleration for the rocket through a superconducting magnetic levitation and electromagnetic propulsion system in a segmented vacuum tube on the ground, replacing the traditional first-stage booster, greatly improving launch efficiency and reducing fuel consumption. Among them, the vacuum tube, as the vacuum environment carrier of the electromagnetic catapult system, affects the operational stability and launch frequency of the entire electromagnetic launch system.

[0003] Most common electromagnetic catapult rocket vacuum pipes currently use a segmented design. This is because large-diameter, long-distance vacuum pipes cannot be transported and installed as a whole. The segmented design can take into account the convenience of transportation, on-site construction efficiency, and later inspection and maintenance needs. However, the segmented design of vacuum pipes needs to meet the requirements of rapid assembly and disassembly, high-precision coaxial positioning, and strong vibration adaptation. Existing technologies lack vacuum pipe designs that can meet the above requirements. Therefore, how to provide a catapult vacuum pipe that can meet the requirements of rapid assembly and disassembly, high-precision coaxial positioning, and strong vibration is an urgent problem to be solved. Utility Model Content

[0004] The purpose of this application is to solve the problem that there is no ejection vacuum pipe in the prior art that meets the requirements of rapid assembly and disassembly, high-precision coaxial positioning, and strong vibration.

[0005] To solve the above-mentioned technical problems, the present invention discloses a vacuum chamber positioning and calibration structure for rocket electromagnetic catapult tracks, including a vacuum chamber and a fixed base. The vacuum chamber includes multiple vacuum pipes that are sequentially sealed and spliced ​​along its axial direction. Any two adjacent vacuum pipes are connected by a flexible tube. The two ends of the flexible tube along its axial direction are respectively fixed and sealed to the corresponding ends of the adjacent vacuum pipes. The flexible tube is configured to deform in its axial and radial directions. An axial support portion and a radial support portion are provided at intervals on the outer wall surface of each vacuum pipe.

[0006] The mounting base includes multiple mounting frames that are fixedly spliced ​​together in sequence along its height direction. Each mounting frame is set in correspondence with a multiple vacuum pipe. Each mounting frame is fixedly sleeved on the outer periphery of the corresponding vacuum pipe. Each mounting frame is provided with an axial mounting part corresponding to the axial support part and a radial mounting part corresponding to the radial support part.

[0007] Furthermore, each axial mounting portion is equipped with an axial adjustment member, the adjustment end of which extends axially along the vacuum pipe and is fixedly connected to the corresponding axial support portion to adjust the fixed position of the corresponding vacuum pipe relative to the fixed frame in its axial direction. Each radial mounting portion is equipped with a radial adjustment member, the adjustment end of which extends radially along the vacuum pipe and is fixedly connected to the radial support portion to adjust the fixed position of the corresponding vacuum pipe relative to the fixed frame in its radial direction.

[0008] Using the above technical solution, the vacuum chamber of the rocket electromagnetic catapult track disclosed in this application is composed of multiple vacuum pipes sealed and spliced ​​together. The structure is simple, and installation and disassembly are convenient and efficient. A fixing frame is installed outside the vacuum chamber to provide reliable fixation and support for the vacuum pipes, resulting in better stability of the vacuum chamber. Any two adjacent vacuum pipes are connected by a flexible tube, which is configured to deform in both the axial and radial directions. This design is effective because the rocket electromagnetic catapult track generates strong vibrations during operation. The flexible tube can effectively absorb and buffer these vibrational energies through its own deformation, preventing deformation or damage to the vacuum pipes due to vibration, ensuring stable assembly of the vacuum pipes, and effectively reducing vacuum leakage and component damage caused by pipe deformation. Similarly, when the vacuum pipes expand and contract due to heat generated during operation, the flexible tube can also effectively absorb the deformation.

[0009] Furthermore, an axial adjustment component is provided on each axial mounting part, and the adjustment end of the axial adjustment component extends along the axial direction of the vacuum pipe and is fixedly connected to the corresponding axial support part. The advantage of this setting is that by adjusting the adjustment end of the axial adjustment component, the position of the vacuum pipe relative to the fixed frame in the axial direction can be precisely adjusted, ensuring that multiple vacuum pipes are aligned in the axial direction. Similarly, a radial adjustment component is provided to adjust the fixed position of the vacuum pipe relative to the fixed frame in the radial direction, ensuring that the vacuum chamber composed of multiple vacuum pipes has high precision in both the radial and axial directions, and avoiding deviations and misalignments between the splicing surfaces and sealing surfaces of the vacuum pipes.

[0010] The present invention also discloses a vacuum chamber positioning and calibration structure for a rocket electromagnetic catapult track. The axial adjustment component is an axial hydraulic rod. The base of the axial hydraulic rod is fixedly mounted on the axial mounting part. The axial hydraulic rod extends along the axial direction of the vacuum pipe, and the adjusting end of the axial hydraulic rod is fixedly connected to the axial support part.

[0011] The radial adjustment component is a radial hydraulic rod. The base of the radial hydraulic rod is fixedly mounted on the radial mounting part. The radial hydraulic rod extends radially along the vacuum pipe, and the adjusting end of the radial hydraulic rod is fixedly connected to the radial support part.

[0012] By adopting the above technical solution, setting the axial adjustment component and the radial adjustment component as a hydraulic rod has the advantages of convenient adjustment, fast response and precise adjustment. In addition, the hydraulic rod also has the advantages of good impact resistance and vibration resistance.

[0013] The present invention also discloses a vacuum chamber positioning and calibration structure for rocket electromagnetic catapult tracks. Each vacuum pipe is configured as a cylindrical structure, and multiple reinforcing ribs are spaced apart on the outer wall of each vacuum pipe. Multiple axial support portions and multiple radial support portions are provided on the outer wall of each vacuum pipe, and these portions are spaced apart circumferentially on the vacuum pipe.

[0014] The present invention also discloses a vacuum chamber positioning and calibration structure for a rocket electromagnetic catapult track. On the outer wall of each vacuum pipe, multiple axial support parts and multiple radial support parts are also distributed at intervals along the axial direction of the vacuum pipe to form at least two rows of axial support parts and at least two rows of radial support parts arranged at intervals along the axial direction of the vacuum pipe. Each row of axial support parts and each row of radial support parts are arranged at intervals along the axial direction of the vacuum pipe.

[0015] By adopting the above technical solution, the assembly of the vacuum pipeline can be adjusted from multiple directions using multiple axial adjustment components and multiple radial adjustment components, achieving high adjustment accuracy.

[0016] The present invention also discloses a vacuum chamber positioning and calibration structure for a rocket electromagnetic catapult track, wherein each axial support and each radial support protrude radially from the outer wall of the vacuum pipe. The axial and radial supports are arranged in a one-to-one correspondence, with each axial support and its corresponding radial support located on the same straight line parallel to the axis of the vacuum pipe.

[0017] With the above technical solution, each axial support and the corresponding radial support are located on the same straight line parallel to the axis of the vacuum pipe, resulting in higher axial support performance and load-bearing capacity.

[0018] The present invention also discloses a vacuum chamber positioning and calibration structure for a rocket electromagnetic catapult track. The fixing frame is configured as a cylindrical support adapted to the vacuum pipe. Multiple support columns are erected at intervals on the periphery of the cylindrical support. The fixing frame is provided with multiple stepped sections at intervals along its height direction. The axial mounting section and the radial mounting section are fixedly mounted on the stepped section.

[0019] In the multi-layer stepped section, the two stepped sections at both ends are formed at the two ends of the fixing frame along its height direction, and the stepped sections at any two adjacent ends of the fixing frame are fastened together by the first fastener.

[0020] Using the above technical solution, the stepped portion supports the axial mounting portion and the radial mounting portion provided thereon, and the stepped portions at the ends of any two adjacent fixing frames are fastened together by the first fastener to ensure that multiple fixing frames can be stably and firmly installed together.

[0021] The present invention also discloses a vacuum chamber positioning and calibration structure for a rocket electromagnetic catapult track, wherein each vacuum pipe is provided with a first connecting flange at its axial end, and the inner ring of the first connecting flange is provided with a first sealing ring mounting groove.

[0022] The flexible tube is provided with a second connecting flange at both ends along its axial direction, and the inner ring of the second connecting flange is provided with a second sealing ring mounting groove.

[0023] The two second connecting flanges at both ends of the flexible tube are detachably fixed to the first connecting flange at the end of the adjacent vacuum pipe, and the first sealing ring mounting groove and the corresponding second sealing ring mounting groove are embedded with sealing rings to make the fixedly connected first connecting flange and second connecting flange sealed together.

[0024] The above technical solution provides a first connecting flange at the axial end of the vacuum pipe and a second connecting flange at the end of the flexible pipe. The vacuum pipe and the flexible pipe are connected by the first and second connecting flanges, which has high sealing performance and connection strength. Furthermore, a sealing ring is provided to improve the connection sealing of the vacuum pipe and the flexible pipe.

[0025] The present invention also discloses a vacuum chamber positioning and calibration structure for rocket electromagnetic catapult tracks, wherein the flexible tube is configured as a corrugated tube.

[0026] The first connecting flange is provided with a plurality of first fastening connection holes spaced apart along its circumference, and the second connecting flange is provided with a plurality of second fastening connection holes spaced apart along its circumference, with the plurality of first fastening connection holes and the plurality of second fastening connection holes being provided in a one-to-one correspondence.

[0027] Each flexible tube is provided with a plurality of connecting rods spaced circumferentially along the second connecting flange. Each connecting rod extends axially along the flexible tube, and the end of each connecting rod passes through the corresponding end of the second connecting flange and the first connecting flange.

[0028] At least two second fasteners are fitted at the end of each connecting rod. The two second fasteners are respectively fixed to the sides of the second connecting flange and the first connecting flange, so that the connecting rod is fixedly connected to the first connecting flange and the second connecting flange.

[0029] By adopting the above technical solution, the flexible pipe is set as a corrugated pipe. The corrugated pipe can deform in both the axial and radial directions, and has good flexibility and deformation capacity. In addition, the corrugated pipe also has high strength and pressure resistance. Furthermore, multiple connecting rods are provided on the outside of each flexible pipe at circumferential intervals along the second connecting flange to further improve the stiffness of the flexible pipe.

[0030] The present invention also discloses a vacuum chamber positioning and calibration structure for a rocket electromagnetic catapult track. Four connecting rods are arranged circumferentially on the flexible tube. Each connecting rod is a connecting screw. The second fastener is a screw nut adapted to the connecting screw. Furthermore, two screw nuts are provided at the end of each connecting screw.

[0031] By adopting the above technical solution and setting the connecting rod as a connecting screw, it has the advantage of convenient adjustment.

[0032] The present invention also discloses a vacuum chamber positioning and calibration structure for a rocket electromagnetic catapult track. A laser calibration component is provided on the outer wall of the vacuum chamber. The laser calibration component includes a laser emitting end and a laser receiving end. The laser emitting end and the laser receiving end are spaced apart on the outer wall of the vacuum chamber and are located on the same straight line parallel to the axis of the vacuum pipe.

[0033] The vacuum chamber positioning and calibration structure also includes a vacuum system, which includes a vacuum pump and a vacuum connecting pipe. One end of the vacuum connecting pipe is connected to the vacuum pump, and the other end is connected to the inner cavity of the vacuum pipeline.

[0034] Using the above technical solution, the axial accuracy of multiple vacuum pipes can be detected by setting up a laser calibration component. When the laser calibration component detects that the vacuum pipes are spliced ​​and there is an axial deviation, the position of the vacuum pipes relative to the fixed frame can be adjusted by using axial hydraulic rods and radial hydraulic rods to ensure the coaxial accuracy of the vacuum pipes. A vacuum system is set up, and the vacuum chamber can be evacuated by using a vacuum pump and a vacuum connecting pipe to ensure that there is a certain degree of vacuum inside the vacuum pipe.

[0035] In summary, this utility model discloses a vacuum chamber positioning and calibration structure for a rocket electromagnetic catapult track. The vacuum chamber of the rocket electromagnetic catapult track is composed of multiple vacuum pipes sealed and spliced ​​together. The structure is simple and convenient and efficient to install and disassemble. Any two adjacent vacuum pipes are connected by a flexible tube. The flexible tube can effectively absorb and buffer these vibration energies through its own deformation, preventing the vacuum pipes from deforming or being damaged due to vibration. Furthermore, axial and radial adjustment components can be set to precisely adjust the position of the vacuum pipes relative to the fixed frame in the axial and radial directions, ensuring that the vacuum chamber composed of multiple vacuum pipes has high accuracy in both the radial and axial directions, and avoiding deviations between the splicing surface and the sealing surface of the vacuum pipes. Attached Figure Description

[0036] Figure 1 A three-dimensional structural diagram of a vacuum chamber positioning and calibration structure for a rocket electromagnetic catapult track provided for an embodiment of this utility model;

[0037] Figure 2 A cross-sectional view of a vacuum chamber positioning and calibration structure for a rocket electromagnetic catapult trajectory provided in an embodiment of this utility model;

[0038] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0039] Figure 4 A three-dimensional structural schematic diagram of a vacuum pipe for a vacuum chamber positioning and calibration structure for a rocket electromagnetic catapult track, provided for an embodiment of this utility model;

[0040] Figure 5 A three-dimensional structural schematic diagram of a flexible tube for positioning and calibration of a vacuum chamber in an electromagnetic catapult trajectory of a rocket, provided as an embodiment of this utility model;

[0041] Figure 6 for Figure 2 A magnified view of part B in the middle section;

[0042] Figure 7 A three-dimensional structural diagram of a fixing frame for a vacuum chamber positioning and calibration structure for a rocket electromagnetic catapult track, provided as an embodiment of this utility model.

[0043] Explanation of reference numerals in the attached figures:

[0044] 10. Vacuum chamber;

[0045] 100. Vacuum pipes;

[0046] 110. Axial support; 120. Radial support; 130. Reinforcing rib; 140. First connecting flange; 150. First sealing ring mounting groove; 160. First fastening connection hole; 170. Laser emitting end; 180. Laser receiving end;

[0047] 300. Flexible pipe;

[0048] 310. Second connecting flange; 320. Second sealing ring mounting groove; 330. Second fastening connection hole; 350. Connecting rod; 360. Second fastener;

[0049] 20. Fixture;

[0050] 200. Fixture;

[0051] 210. Axial mounting part; 220. Radial mounting part; 230. Support column; 240. Stepped part;

[0052] 400. Axial adjustment component;

[0053] 500. Radial adjustment component;

[0054] 600. Vacuum pump. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0056] This embodiment discloses a vacuum chamber positioning and calibration structure for rocket electromagnetic catapult tracks. Please refer to [link to relevant documentation]. Figure 1 as well as Figure 2 It includes a vacuum chamber 10 and a fixed base 20. The fixed base 20 is sleeved on the outside of the vacuum chamber 10 and can provide support and protection for the vacuum chamber 10. The vacuum chamber 10 includes a plurality of vacuum pipes 100 that are sequentially sealed and spliced ​​along its axial direction. Any two adjacent vacuum pipes 100 are connected by a flexible tube 300. The two ends of the flexible tube 300 along its axial direction are respectively fixed and sealed to the corresponding ends of the adjacent vacuum pipes 100. The flexible tube 300 is configured to deform in its axial and radial directions.

[0057] First, let's explain electromagnetic catapult launch. Electromagnetic catapult technology uses the electromagnetic force generated by a linear catapult motor to accelerate a large-mass launch payload to takeoff speed. The electromagnetic field propels the rocket in orbit, accelerating it along a vacuum chamber trajectory. See further... Figure 1 It should be noted that the vacuum chamber 10 in this embodiment is a three-dimensional container structure. The vacuum chamber 10 has an outer wall and other structures, and is formed by sealing and splicing multiple vacuum pipes 100. The interior of the vacuum chamber 10 is the rocket electromagnetic catapult track.

[0058] Specifically, the number of vacuum pipes 100 constituting the vacuum chamber 10 is unlimited. The vacuum pipes 100 can be spliced ​​together according to the length requirements of the vacuum chamber 10. For example, the number can be dozens or even hundreds, which can meet the needs of vacuum chamber tracks of hundreds or even thousands of meters. Figure 1 and Figure 2 The illustration uses only the splicing structure of two adjacent vacuum pipes 100 as an example. Any two adjacent vacuum pipes 100 can be sealed and connected by means of flanges, ferrules, sealing joints, etc. In this embodiment, flanges are preferred for connection, as flange connection has the advantages of high connection strength, convenient installation and good sealing performance.

[0059] More specifically, in this embodiment, the flexible tube 300 can be a metal hose, a metal corrugated pipe, etc. Furthermore, in this embodiment, the flexible tube 300 is configured to deform in both its axial and radial directions. This means that the flexible tube 300 located between two adjacent vacuum pipes 100 can deform along both the axial and radial directions. For example, when the vacuum pipes 100 located at both ends of the flexible tube 300 need to be adjusted axially and radially due to installation errors, thermal expansion and contraction, or pipe fine-tuning requirements, the flexible tube 300 can adapt to and compensate for this position adjustment through its own deformation. This achieves a sealed connection and position compensation between adjacent vacuum pipes 100, avoiding damage to the vacuum sealing effect due to pipe position adjustment, and also avoiding problems such as pipe stress concentration and loose connections. Moreover, in this embodiment, the axial length of the flexible tube 300 is preferably set to be relatively short, which can improve the overall structural stability of the pipeline and reduce the shaking and excessive deformation problems caused by an excessively long flexible tube 300.

[0060] With this structural design, the vacuum chamber 10 of the rocket electromagnetic catapult track is composed of multiple sealed and spliced ​​vacuum pipes 100. The structure is simple, and installation and disassembly are convenient and efficient. A fixing frame 200 is installed outside the vacuum chamber 10 to provide reliable fixation and support for the vacuum pipes 100, resulting in better stability of the vacuum chamber 10. Any two adjacent vacuum pipes 100 are connected by a flexible tube 300, which is configured to deform in both the axial and radial directions. This design allows the flexible tube 300 to effectively absorb and buffer the strong vibrations generated during the operation of the rocket electromagnetic catapult track, preventing deformation or damage to the vacuum pipes 100 and ensuring their stable operation. Similarly, when the vacuum pipes 100 expand and contract due to heat generated during operation, the flexible tube 300 can also effectively absorb the deformation.

[0061] Further, see Figure 1 and Figure 2 The fixing base 20 includes multiple fixing frames 200 that are fixedly spliced ​​together in sequence along its height direction. The multiple fixing frames 200 are arranged in a one-to-one correspondence with multiple vacuum pipes 100, and each fixing frame 200 is fixedly sleeved on the outer periphery of the corresponding vacuum pipe 100.

[0062] Specifically, in this embodiment, the number of fixing brackets 200 is preferably the same as the number of vacuum pipes 100, and a fixing bracket 200 is provided on the outside of each vacuum pipe 100. In other embodiments, a fixing bracket 200 may be provided on the outside of multiple vacuum pipes 100, such as two, three or other numbers of vacuum pipes 100. This embodiment does not limit this to a single method.

[0063] Furthermore, see Figure 1 and Figure 2 Each vacuum pipe 100 has an axial support portion 110 and a radial support portion 120 spaced apart on its outer wall surface. Each fixture 200 is provided with an axial mounting portion 210 and a radial mounting portion 220, with the axial mounting portion 210 corresponding to the axial support portion 110 and the radial mounting portion 220 corresponding to the radial support portion 120.

[0064] Please continue reading Figure 2 and Figure 3 Each axial mounting portion 210 is provided with an axial adjustment member 400. The adjustment end of the axial adjustment member 400 extends along the axial direction of the vacuum pipe 100 and is fixedly connected to the corresponding axial support portion 110 to adjust the fixed position of the corresponding vacuum pipe 100 in its axial direction relative to the fixing frame 200. Each radial mounting portion 220 is provided with a radial adjustment member 500. The adjustment end of the radial adjustment member 500 extends radially along the vacuum pipe 100 and is fixedly connected to the radial support portion 120 to adjust the fixed position of the corresponding vacuum pipe 100 in its radial direction relative to the fixing frame 200.

[0065] Further, see Figure 1 A laser calibration assembly is provided on the outer wall of the vacuum chamber 10. The laser calibration assembly includes a laser emitter 170 and a laser receiver 180. The laser emitter 170 and the laser receiver 180 are spaced apart on the outer wall of the vacuum chamber 10 and are located on the same straight line parallel to the axis of the vacuum pipe 100. Preferably, the laser emitter 170 is provided on the bottom outer wall of the vacuum chamber 10 and the laser receiver 180 is provided on the top outer wall of the vacuum chamber 10.

[0066] Specifically, in this embodiment, the axial adjusting component 400 and the radial adjusting component 500 can be configured as linear adjusting mechanisms such as hydraulic rods, electric push rods, and cylinders. The installation method of the axial adjusting component 400 and the radial adjusting component 500 is not limited. For example, they can be connected by fasteners, welding, threaded connections, etc.

[0067] This structural design includes an axial adjustment member 400 on each axial mounting part 210, with the adjustment end of the axial adjustment member 400 extending axially along the vacuum pipe 100 and fixedly connected to the corresponding axial support part 110. The advantage of this design is that by adjusting the adjustment end of the axial adjustment member 400, the axial position of the vacuum pipe 100 relative to the fixed frame 200 can be precisely adjusted, ensuring that multiple vacuum pipes 100 are axially aligned. Similarly, the radial adjustment member 500 is used to adjust the fixed position of the vacuum pipe 100 relative to the fixed frame 200 in the radial direction. Combined with the adjustment function of the axial adjustment member 400, precise adjustment of the splicing and assembly of multiple vacuum pipes 100 can be achieved, ensuring that the vacuum chamber 10 composed of multiple vacuum pipes 100 has high precision in both the radial and axial directions, and avoiding deviations or misalignments between the splicing surfaces and sealing surfaces of the vacuum pipes 100.

[0068] Furthermore, by setting up a laser calibration component, the axial accuracy of multiple vacuum pipes 100 can be detected, ensuring that the coaxiality of the vacuum pipes 100 meets the requirements, the flatness of the mating end faces is matched, and avoiding uneven loading of the sealing surface and trajectory deviation, thus ensuring the rocket's levitation and acceleration stability. For example, when the laser calibration component detects an axial deviation in the splicing of vacuum pipes 100, the position of the vacuum pipes 100 relative to the fixed frame 200 can be adjusted by using axial and radial hydraulic rods to ensure the coaxial accuracy of the vacuum pipes 100.

[0069] It should be noted that the vacuum chamber positioning and calibration structure for rocket electromagnetic catapult tracks disclosed in this embodiment can perform positioning, calibration, and adjustment of the vacuum chamber 10 at different stages, such as the installation and maintenance phases, to ensure that the vacuum track meets the requirements for each launch. (See also...) Figure 1 and Figure 2 In this embodiment, the vacuum chamber 10 for the rocket electromagnetic catapult track is arranged in the vertical direction. Therefore, the axial direction in this embodiment is the same as the vertical direction, and the radial direction is the same as the horizontal direction.

[0070] For example, see Figure 1 and Figure 2 The process of installing two vacuum pipes 100 is illustrated as follows: First, install the vacuum pipe 100 located at the bottom in the height direction and the fixing bracket 200. Then, install the flexible tube 300 above the vacuum pipe 100. Next, install the second vacuum pipe 100 above the flexible tube 300. After installation, the laser emitting end 170 on the lower vacuum pipe 100 emits laser light, and the laser receiving end 180 on the upper vacuum pipe 100 receives the laser signal. Then, according to the installation requirements of the vacuum pipe 100, the position of the upper vacuum pipe 100 in the height direction (axial) and the horizontal direction (radial) is adjusted by the axial adjusting component 400 and the radial adjusting component 500.

[0071] More preferably, see Figure 2 and Figure 3 In the vacuum chamber positioning and calibration structure for rocket electromagnetic catapult track disclosed in this embodiment, the axial adjustment component 400 is an axial hydraulic rod. The base of the axial hydraulic rod is fixedly mounted on the axial mounting part 210. The axial hydraulic rod extends along the axial direction of the vacuum pipe 100, and the adjusting end of the axial hydraulic rod is fixedly connected to the axial support part 110. The adjusting end of the axial hydraulic rod can be the movable end of the hydraulic rod.

[0072] The radial adjusting member 500 is a radial hydraulic rod. The base of the radial hydraulic rod is fixedly mounted on the radial mounting part 220. The radial hydraulic rod extends radially along the vacuum pipe 100, and the adjusting end of the radial hydraulic rod is fixedly connected to the radial support part 120. The adjusting end of the radial hydraulic rod can also be the movable end of the hydraulic rod.

[0073] This structural design, which uses hydraulic rods for the axial adjustment component 400 and the radial adjustment component 500, offers advantages such as convenient adjustment, rapid response, and precise adjustment. The adjustment can be made by extending or retracting the movable end of the hydraulic rod, which also has the advantages of good impact and vibration resistance.

[0074] The vacuum chamber 10 of the vacuum chamber positioning and calibration structure for rocket electromagnetic catapult trajectory disclosed in this embodiment will be explained in more detail below:

[0075] Please see Figure 1 as well as Figure 4 Each vacuum pipe 100 is configured as a cylindrical structure, and multiple reinforcing ribs 130 are distributed at intervals on the outer wall surface of each vacuum pipe 100. Multiple axial support parts 110 and multiple radial support parts 120 are provided on the outer wall surface of each vacuum pipe 100, and the multiple axial support parts 110 and multiple radial support parts 120 are distributed at intervals in the circumferential direction of the vacuum pipe 100.

[0076] It should be noted that the reinforcing rib 130 in this embodiment can be axially extended along the outer wall of the vacuum pipe 100, or circumferentially extended along the outer wall of the vacuum pipe 100, or staggered along the axial and circumferential directions. The axial support 110 and the radial support 120 can be the outer wall body of the vacuum pipe 100, or a structure that protrudes from the outer wall body and is fixedly welded. This embodiment does not limit this to a single type.

[0077] Furthermore, the number of axial support portions 110 and radial support portions 120 provided on the outer wall of each vacuum pipe 100 is not limited; for example, four, five, six, or even more can be provided. Preferably, the multiple axial support portions 110 and radial support portions 120 are distributed at intervals around the outer wall of the vacuum pipe 100 along the axial direction. This provides better support and adjustability for the vacuum pipe 100. Adjacent axial support portions 110 and radial support portions 120 can be located on the same straight line or staggered. See [reference needed]. Figure 4 In this embodiment, it is preferably configured that two adjacent axial support portions 110 and radial support portions 120 are located on the same straight line.

[0078] This embodiment also discloses a vacuum chamber positioning and calibration structure for rocket electromagnetic catapult tracks, see [link to relevant documentation]. Figure 4 On the outer wall surface of each vacuum pipe 100, a plurality of axial support portions 110 and a plurality of radial support portions 120 are also distributed at intervals along the axial direction of the vacuum pipe 100, so as to form at least two rows of axial support portions 110 and at least two rows of radial support portions 120 arranged at intervals along the axial direction of the vacuum pipe 100, and each row of axial support portions 110 and each row of radial support portions 120 are arranged at intervals along the axial direction of the vacuum pipe 100.

[0079] Specifically, the number of axial support portions 110 and radial support portions 120 arranged axially on the outer wall of each vacuum pipe 100 is unlimited. For example, there can be 2 rows, 3 rows, 4 rows, or even more. The specific number of rows can be set according to the length of each vacuum pipe 100. Please refer to [link to relevant documentation]. Figure 4 The diagram shows a configuration in which two rows of axial support portions 110 and two rows of radial support portions 120 are provided on the outer wall of the vacuum pipe 100. Each row of axial support portions 110 and radial support portions 120 has four portions and is spaced apart along the circumference of the vacuum pipe 100. This structural design can provide balanced support for the vacuum pipe 100 at multiple points, avoiding uneven force distribution and positional displacement caused by single-point support.

[0080] This structural design, with multiple axial support portions 110 and multiple radial support portions 120 arranged circumferentially along the outer wall of the vacuum pipe 100, allows for the installation of multiple axial adjustment components 400 and multiple radial adjustment components 500. These components enable adjustment of the vacuum pipe 100 from multiple directions with high adjustment precision. Furthermore, the arrangement of multiple rows of axial support portions 110 and multiple rows of radial support portions 120 along the axial direction of the outer wall of the vacuum pipe 100 improves the load-bearing and support performance of the vacuum pipe 100 in the axial direction.

[0081] Further, see Figure 4 Each axial support portion 110 and each radial support portion 120 protrudes radially from the outer wall of the vacuum pipe 100. The axial support portions 110 and radial support portions 120 are arranged in a one-to-one correspondence, with each axial support portion 110 and its corresponding radial support portion 120 located on the same straight line parallel to the axis of the vacuum pipe 100. This results in higher axial support performance and load-bearing capacity of the vacuum pipe 100.

[0082] Specifically, in this embodiment, the axial support portion 110 and the radial support portion 120 can be support seats provided on the outer wall surface of the vacuum pipe 100, or they can be support seats integrally formed on the vacuum pipe 100 and protruding from the outer wall surface. The axial support portion 110 and the radial support portion 120 are provided in a one-to-one correspondence, and preferably the axial support portion 110 is provided above the radial support portion 120 in the vertical direction.

[0083] This embodiment also discloses a vacuum chamber positioning and calibration structure for rocket electromagnetic catapult tracks, see [link to relevant documentation]. Figure 4 and Figure 5 Each vacuum pipe 100 is provided with a first connecting flange 140 at its axial end, and the inner ring of the first connecting flange 140 is also provided with a first sealing ring mounting groove 150.

[0084] The flexible tube 300 is provided with a second connecting flange 310 at both ends along its axial direction, and the inner ring of the second connecting flange 310 is provided with a second sealing ring mounting groove 320.

[0085] The two second connecting flanges 310 at both ends of the flexible tube 300 are detachably fixedly connected to the first connecting flange 140 at the end of the adjacent vacuum pipe 100, and the first sealing ring mounting groove 150 and the corresponding second sealing ring mounting groove 320 are embedded with sealing rings to make the fixedly connected first connecting flange 140 and second connecting flange 310 sealed together.

[0086] With this structural design, a first connecting flange 140 is provided at the axial end of the vacuum pipe 100, and a second connecting flange 310 is provided at the end of the flexible pipe 300. The vacuum pipe 100 and the flexible pipe 300 are connected through the first connecting flange 140 and the second connecting flange 310, which has high sealing performance and connection strength. Furthermore, a sealing ring is provided to improve the connection sealing of the vacuum pipe 100 and the flexible pipe 300.

[0087] The flexible tube 300 for the vacuum chamber positioning and calibration structure of the rocket electromagnetic catapult track disclosed in this embodiment will be explained in more detail below:

[0088] Please see Figure 5The flexible tube 300 is configured as a corrugated tube. The first connecting flange 140 is provided with a plurality of first fastening connection holes 160 spaced apart along its circumference, and the second connecting flange 310 is provided with a plurality of second fastening connection holes 330 spaced apart along its circumference. The plurality of first fastening connection holes 160 and the plurality of second fastening connection holes 330 are configured in a one-to-one correspondence.

[0089] Specifically, the number of first fastening connection holes 160 and second fastening connection holes 330 arranged circumferentially on the first connecting flange 140 and the second connecting flange 310 is unlimited, for example, it can be 8, 10, 15 or even more. Each corresponding first fastening connection hole 160 and second fastening connection hole 330 is fixedly connected by fasteners, which can be bolts, rivets or other components. It should be noted that the more fastening connection holes arranged circumferentially on the first connecting flange 140 and the second connecting flange 310, the higher the connection strength of the first connecting flange 140 and the second connecting flange 310.

[0090] Each flexible tube 300 is provided with a plurality of connecting rods 350 distributed circumferentially along the second connecting flange 310. Each connecting rod 350 extends axially along the flexible tube 300, and the end of each connecting rod 350 passes through the corresponding end of the second connecting flange 310 and the first connecting flange 140.

[0091] Similarly, the number of connecting rods 350 provided outside each flexible tube 300 is unlimited. For example, three, four, five or even more can be provided. This embodiment does not make a specific limitation on this.

[0092] Please see Figure 5 and Figure 6 Each connecting rod 350 is also fitted with at least two second fasteners 360 at its end. The at least two second fasteners 360 are respectively fixed to the two sides of the second connecting flange 310 and the first connecting flange 140, so that the connecting rod 350 is fixedly connected to the first connecting flange 140 and the second connecting flange 310.

[0093] With this structural design, the flexible tube 300 is configured as a corrugated tube. The corrugated tube can deform in both the axial and radial directions, exhibiting good flexibility and deformation capacity, and also possessing high strength and pressure resistance. Furthermore, multiple connecting rods 350 are provided on the outside of each flexible tube 300, distributed circumferentially along the second connecting flange 310, further enhancing the rigidity of the flexible tube 300.

[0094] For more details, see Figure 5In this embodiment, the flexible tube 300 is provided with four connecting rods 350 at circumferential intervals. Each connecting rod 350 is configured as a connecting screw. The second fastener 360 is configured as a screw nut adapted to the connecting screw. Furthermore, each connecting screw has two screw nuts at its end.

[0095] The design of the above structure, with the connecting rod 350 set as a connecting screw, has the advantage of convenient adjustment. For example, when it is necessary to adjust the distance between two adjacent vacuum pipes 100 in the axial direction, the axial length of the bellows or the distance between two adjacent vacuum pipes 100 in the axial direction can also be adjusted by adjusting the length of the connecting screw in the axial direction of the flexible pipe 300.

[0096] The following is a more detailed explanation of the fixture 200 for the vacuum chamber positioning and calibration structure of the rocket electromagnetic catapult track disclosed in this embodiment:

[0097] Please see Figure 7 The fixing frame 200 is configured as a cylindrical support adapted to the vacuum pipe 100. Multiple support columns 230 are erected at intervals on the peripheral wall of the cylindrical support. The fixing frame 200 is provided with multiple stepped portions 240 at intervals along its height direction. The axial mounting portion 210 and the radial mounting portion 220 are fixedly mounted on the stepped portion 240.

[0098] In the multi-layer stepped portion 240, the two stepped portions 240 at both ends are respectively formed at both ends of the fixing frame 200 along its height direction, and the stepped portions 240 at the ends of any two adjacent fixing frames 200 are fastened together by a first fastener (not shown in the figure).

[0099] Specifically, in this embodiment, the number of support columns 230 is not limited; for example, 6, 8, 10, or even more support columns 230 can be provided. The number of step portions 240 is also not limited; 4, 5, 6, or even more can be provided. The step portions 240 at both ends of the fixed frame 200 in the height direction are used for connection and installation with adjacent fixed frames 200. To improve the connection stability and strength between two adjacent fixed frames 200, two rings of fastening connection holes can be provided on the step portions 240 of the fixed frame 200. The first fastener can be a fastening bolt, rivet, or other component.

[0100] With this structural design, the step portion 240 supports the axial mounting portion 210 and the radial mounting portion 220 provided thereon, and the step portions 240 at the ends of any two adjacent fixing brackets 200 are fastened together by the first fastener to ensure that multiple fixing brackets 200 can be installed together stably and securely.

[0101] This embodiment also discloses a vacuum chamber positioning and calibration structure for rocket electromagnetic catapult tracks, see [link to relevant documentation]. Figure 1 and Figure 2 The vacuum chamber positioning and calibration structure also includes a vacuum system, which includes a vacuum pump 600 and a vacuum connecting pipe (not shown in the figure). One end of the vacuum connecting pipe is connected to the vacuum pump 600, and the other end is connected to the inner cavity of the vacuum pipe 100.

[0102] With this structural design, a vacuum system is set up, and a vacuum pump 600 and a vacuum connecting pipe can be used to evacuate the vacuum chamber 10 to ensure the vacuum level inside the vacuum tube.

[0103] In summary, this utility model discloses a vacuum chamber positioning and calibration structure for a rocket electromagnetic catapult track. The vacuum chamber 10 of the rocket electromagnetic catapult track is formed by sealing and splicing multiple vacuum pipes 100. The structure is simple and convenient and efficient to install and disassemble. Any two adjacent vacuum pipes 100 are connected by a flexible tube 300. The flexible tube 300 can effectively absorb and buffer these vibration energies through its own deformation, preventing the vacuum pipes 100 from deforming or being damaged due to vibration. Furthermore, the axial adjustment component 400 and the radial adjustment component 500 can accurately adjust the position of the vacuum pipes 100 relative to the fixed frame 200 in the axial and radial directions, ensuring that the vacuum chamber 10 formed by splicing multiple vacuum pipes 100 has high accuracy in both the radial and axial directions, and avoiding deviation between the splicing surface and the sealing surface of the vacuum pipes 100.

[0104] It should be noted that, in addition to the specific embodiments described above, those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model is presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to that embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. In order to provide a deep understanding of this utility model, many specific details are included in the above description, and this utility model may also be implemented without using these details. In addition, in order to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0105] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0106] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on the utility model.

[0107] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0108] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0109] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A vacuum chamber positioning and calibration structure for rocket electromagnetic catapult tracks, characterized in that, include: A vacuum chamber includes multiple vacuum pipes that are sequentially and sealed together along its axial direction. Any two adjacent vacuum pipes are connected by a flexible tube. The two ends of the flexible tube along its axial direction are respectively fixed and sealed to the corresponding ends of the adjacent vacuum pipes. The flexible tube is configured to deform in its axial and radial directions. Each vacuum pipe has an axial support portion and a radial support portion spaced apart on its outer wall surface. The fixing base includes multiple fixing frames that are sequentially fixedly spliced ​​along its height direction. The multiple fixing frames are arranged one-to-one with the multiple vacuum pipes. Each fixing frame is fixedly sleeved on the outer periphery of the corresponding vacuum pipe. Each fixing frame is provided with an axial mounting part corresponding to the axial support part and a radial mounting part corresponding to the radial support part. Furthermore, each of the axial mounting portions is provided with an axial adjustment member, the adjustment end of which extends along the axial direction of the vacuum pipe and is fixedly connected to the corresponding axial support portion, so as to adjust the fixed position of the corresponding vacuum pipe relative to the fixed frame in its axial direction. Each of the radial mounting portions is provided with a radial adjustment member, the adjustment end of which extends radially along the vacuum pipe and is fixedly connected to the radial support portion to adjust the fixed position of the corresponding vacuum pipe relative to the fixing frame in its radial direction.

2. The vacuum chamber positioning and calibration structure for rocket electromagnetic catapult trajectory as described in claim 1, characterized in that, The axial adjustment component is an axial hydraulic rod. The base of the axial hydraulic rod is fixedly mounted on the axial mounting part. The axial hydraulic rod extends along the axial direction of the vacuum pipe, and the adjusting end of the axial hydraulic rod is fixedly connected to the axial support part. The radial adjustment component is a radial hydraulic rod. The base of the radial hydraulic rod is fixedly mounted on the radial mounting part. The radial hydraulic rod extends radially along the vacuum pipe, and the adjusting end of the radial hydraulic rod is fixedly connected to the radial support part.

3. The vacuum chamber positioning and calibration structure for rocket electromagnetic catapult trajectory as described in claim 1, characterized in that, Each of the vacuum pipes is configured as a cylindrical structure, and multiple reinforcing ribs are distributed at intervals on the outer wall surface of each vacuum pipe; Each of the vacuum pipes has a plurality of axial support portions and a plurality of radial support portions on its outer wall surface, and the plurality of axial support portions and the plurality of radial support portions are distributed at intervals in the circumferential direction of the vacuum pipe.

4. The vacuum chamber positioning and calibration structure for rocket electromagnetic catapult trajectory as described in claim 3, characterized in that, On the outer wall surface of each vacuum pipe, a plurality of axial support portions and a plurality of radial support portions are also distributed at intervals along the axial direction of the vacuum pipe to form at least two rows of axial support portions and at least two rows of radial support portions arranged at intervals along the axial direction of the vacuum pipe, with each row of axial support portions and each row of radial support portions being arranged at intervals along the axial direction of the vacuum pipe.

5. The vacuum chamber positioning and calibration structure for rocket electromagnetic catapult trajectory as described in claim 3, characterized in that, Each of the axial support portions and each of the radial support portions protrude radially from the outer wall surface of the vacuum pipe; The axial support portion and the radial support portion are arranged in a one-to-one correspondence, and each axial support portion and the corresponding radial support portion are located on the same straight line parallel to the axis of the vacuum pipe.

6. The vacuum chamber positioning and calibration structure for rocket electromagnetic catapult trajectory as described in claim 1, characterized in that, The fixing frame is configured as a cylindrical support adapted to the vacuum pipe. Multiple support columns are erected at intervals on the peripheral wall of the cylindrical support. The fixing frame is provided with multiple stepped portions at intervals along its height direction. The axial mounting portion and the radial mounting portion are fixedly mounted on the stepped portions. The two stepped sections at both ends of the multi-layered stepped section are respectively formed at both ends of the fixing frame along its height direction, and the stepped sections at any two adjacent ends of the fixing frame are fastened together by a first fastener.

7. The vacuum chamber positioning and calibration structure for rocket electromagnetic catapult tracks as described in any one of claims 1 to 6, characterized in that, Each of the vacuum pipes is provided with a first connecting flange at its axial end, and the inner ring of the first connecting flange is also provided with a first sealing ring mounting groove. The flexible tube is provided with a second connecting flange at both ends along its axial direction, and the inner ring of the second connecting flange is provided with a second sealing ring mounting groove. The two second connecting flanges at both ends of the flexible tube are detachably fixedly connected to the first connecting flange at the end of the adjacent vacuum pipe, and the first sealing ring mounting groove and the corresponding second sealing ring mounting groove are fitted with sealing rings to make the fixedly connected first connecting flange and second connecting flange sealed together.

8. The vacuum chamber positioning and calibration structure for rocket electromagnetic catapult trajectory as described in claim 7, characterized in that, The flexible tube is configured as a corrugated tube; The first connecting flange is provided with a plurality of first fastening connection holes spaced apart along its circumference, and the second connecting flange is provided with a plurality of second fastening connection holes spaced apart along its circumference, wherein the plurality of first fastening connection holes and the plurality of second fastening connection holes are provided in a one-to-one correspondence. Each of the flexible tubes is provided with a plurality of connecting rods that are circumferentially spaced along the second connecting flange. Each connecting rod extends axially along the flexible tube, and the end of each connecting rod passes through the corresponding end of the second connecting flange and the first connecting flange. At least two second fasteners are also fitted onto the end of each connecting rod. The at least two second fasteners are respectively fixed to the second connecting flange and the two sides of the first connecting flange, so that the connecting rod is fixedly connected to the first connecting flange and the second connecting flange.

9. The vacuum chamber positioning and calibration structure for rocket electromagnetic catapult trajectory as described in claim 8, characterized in that, The flexible tube is provided with four connecting rods spaced apart circumferentially, each of the connecting rods being a connecting screw, the second fastener being a screw nut adapted to the connecting screw, and each connecting screw having two screw nuts at its end.

10. The vacuum chamber positioning and calibration structure for rocket electromagnetic catapult tracks as described in any one of claims 1 to 6, characterized in that, A laser calibration assembly is provided on the outer wall of the vacuum chamber. The laser calibration assembly includes a laser emitting end and a laser receiving end. The laser emitting end and the laser receiving end are spaced apart on the outer wall of the vacuum chamber and are located on the same straight line parallel to the axis of the vacuum pipe. The vacuum chamber positioning and calibration structure also includes a vacuum system, which includes a vacuum pump and a vacuum connecting pipe. One end of the vacuum connecting pipe is connected to the vacuum pump, and the other end is connected to the inner cavity of the vacuum pipe.

Images