Flexible space pipeline vibration test installation device and installation method

Abstract

The present invention provides a flexible space pipeline vibration test installation device and installation method, comprising: a gantry, a vibration table, a limit bracket, a three-way adapter, a flexible space pipeline, a rotating disc, and an adapter plate; one end of the flexible space pipeline is connected to the vibration table, and the other end is connected to the gantry; the limit bracket is installed on the vibration table, and the three-way adapter is installed between the flexible space pipeline and the vibration table; the flexible space pipeline is connected to the gantry via the rotating disc and the adapter plate; and a flexible bellows limiter is installed on the flexible space pipeline. The present invention solves the problems of six-degree-of-freedom angle adjustment, displacement loading, and bellows protection in flexible space pipelines; the installation process does not involve forced assembly and does not apply additional force or torque to the bellows.

Description

Technical Field

[0001] The present invention relates to the field of vibration engineering, and in particular to a flexible space pipeline vibration test installation device and an installation method. Background Art

[0002] The structure of the new generation of liquid carrier rocket's pressurization and delivery system is extremely complex. It needs to withstand harsh mechanical environments such as deep low temperature, high-frequency vibration, high pressure, and large displacement during flight. In order to ensure the success of the rocket launch, the pipeline system needs to carry out a large number of strength environment simulation verification tests to verify the accuracy of the design.

[0003] The flexible space piping system inside a rocket is spatially distributed and structurally complex. Welding is often used for processing, resulting in discrepancies between the actual product and the 3D model. The bellows of the flexible space piping are highly flexible, and even minimal forces can cause them to deform. These factors complicate the design and on-site commissioning of the ground test installation for the flexible space piping system.

[0004] Therefore, it is urgent to invent a flexible space pipeline vibration test installation method to solve the above problems.

[0005] Patent document CN113865687A relates to a pipeline vibration testing device, including a stroboscope, a connecting piece and a measuring device. The stroboscope has a light outlet arranged along a first direction; along the first direction, the first end of the connecting piece is fixedly connected to the stroboscope, and the first end of the connecting piece surrounds the outside of the light outlet, a cavity is formed inside the connecting piece, and the connecting piece is also provided with an opening, which is arranged opposite to the light outlet; the measuring device is fixedly provided at the second end of the connecting piece, and a scale line is provided on the measuring device.

[0006] Patent document CN112504592A relates to a hydraulic pipeline vibration test bench, which includes a test bench, a straight test pipe, a curved test pipe, a quick connector, a three-way valve, a ball valve, a pipe clamp, a spectrum analyzer, and a vibration acceleration sensor.

[0007] Currently, existing technologies have not yet solved problems such as deformation of flexible space pipelines. Summary of the Invention

[0008] In view of the defects in the prior art, the purpose of the present invention is to provide a flexible space pipeline vibration test installation device and installation method.

[0009] According to the present invention, a flexible space pipeline vibration test installation device is provided, comprising: a gantry, a vibration table, a limit bracket, a three-way adapter, a flexible space pipeline, a rotating disc and an adapter plate;

[0010] One end of the flexible space pipeline is connected to the vibration table, and the other end is connected to the gantry;

[0011] A limiting bracket is installed on the vibration table, and a three-way adapter is installed between the flexible space pipeline and the vibration table;

[0012] The flexible space pipeline is connected to the gantry through a rotating disc and an adapter plate;

[0013] A flexible bellows limiting device is installed on the flexible space pipeline.

[0014] Preferably, a tabletop adapter is installed on the vibration table, and the three-way adapter is installed on the side of the tabletop adapter facing the flexible space pipeline;

[0015] The three-way adapter is provided with a bottom filling flange on one side of the flexible space pipeline, and the bottom filling flange is connected to the flexible space pipeline;

[0016] The gantry can be detachably mounted with a casting block, the casting block adopts a building block assembly structure, the casting block is mounted with one side of the adapter plate facing the flexible space pipeline, and the other side of the adapter plate is mounted with the rotating disc through a connecting mechanism;

[0017] The rotating disc is connected to one side of the sliding hole flange facing the flexible space pipeline, and the other side of the sliding hole flange is installed with a top pressure measuring flange;

[0018] The top pressure measuring flange is connected to one end of the flexible space pipeline facing away from the bottom filling flange, and a second filling pipeline installation hole is provided on the central circumference of the top pressure measuring flange for installing the filling pipeline.

[0019] Preferably, the vibration table comprises: a vibration table bracket, a vibration table dynamic coil, an outer ring mounting hole and an inner ring mounting hole;

[0020] The vibration table dynamic coil is installed on the middle part of the vibration table bracket toward the side of the flexible space pipeline;

[0021] An outer ring mounting hole and an inner ring mounting hole are provided on the side of the vibration table moving coil facing the flexible space pipeline, and the outer ring mounting hole is provided on the outer ring of the inner ring mounting hole.

[0022] Preferably, the position-limiting bracket comprises: a first bracket mounting plate and a second bracket mounting plate;

[0023] The first mounting plate of the bracket is installed on the side of the limiting bracket facing the vibration table, and the first mounting plate of the bracket is fixedly connected to the second mounting plate of the bracket on the side facing the flexible space pipeline;

[0024] The limiting bracket is fixedly mounted on the vibration table bracket through the first mounting plate of the bracket;

[0025] The second mounting plate of the bracket is threadedly fixedly connected to the outer ring mounting hole.

[0026] Preferably, the table top adapter device comprises: a table top adapter device bottom plate and a connecting boss;

[0027] The bottom plate of the tabletop adapter device is fixedly connected to the connecting boss;

[0028] The bottom plate of the table top adapter is threadedly fixedly connected to the inner ring mounting hole, and a threaded hole is provided on the side of the connecting boss facing away from the bottom plate of the table top adapter;

[0029] The three-way adapter is provided with through holes penetrating the upper and lower surfaces, the through hole on the lower surface of the three-way adapter is threadedly connected to the connecting boss, the through hole on the upper surface of the three-way adapter is threadedly connected to one end of the bottom filling flange, and the other end of the bottom filling flange is connected to the flexible space pipeline;

[0030] The three-way adapter is provided with mounting circular holes on its circumference;

[0031] A first filling pipeline installation hole is provided on the circumferential side of the middle portion of the bottom filling flange for installing the filling pipeline.

[0032] Preferably, the adapter plate comprises: a first connecting plate and a second connecting plate;

[0033] The first connecting plate is connected to the second connecting plate via a vertical plate member, the first connecting plate is provided with a plurality of second transverse strip grooves, and the second connecting plate is provided with a plurality of second longitudinal strip grooves;

[0034] The second transverse strip groove is perpendicular to the second longitudinal strip groove;

[0035] The adapter plate is connected to the ingot via the second longitudinal strip groove.

[0036] Preferably, the rotating disc comprises: a second square plate and a second circular plate;

[0037] The second square plate is fixedly connected to the second circular plate;

[0038] The second square plate is provided with a plurality of first longitudinal strip grooves, and the second circular plate is provided with a plurality of first arc-shaped holes;

[0039] The first arc-shaped hole is fixedly connected to the second transverse strip groove through a connecting mechanism, and the rotating disc is fixedly connected to the adapter plate through a second circular plate.

[0040] Preferably, the sliding hole flange comprises: a first circular plate and a first square plate;

[0041] The first circular plate is fixedly connected to the first square plate, the first square plate is provided with a plurality of first transverse strip grooves, and the first circular plate is provided with a plurality of second arc-shaped holes;

[0042] The first transverse strip groove is fixedly connected to the first longitudinal strip groove through a connecting mechanism, and the first square plate is fixedly connected to the second square plate;

[0043] One end of the top pressure measuring flange is connected to the first circular plate through the second arc-shaped hole, and the other end is fixedly connected to the flexible space pipeline.

[0044] Preferably, a bellows is provided on the flexible space pipeline, and the flexible bellows limiting device is installed on the circumference of the bellows;

[0045] The flexible bellows limiting device comprises: a limiting semicircular ring and a limiting screw;

[0046] There are multiple limiting semicircular rings and limiting screws, and the multiple limiting semicircular rings are paired to form an annular limiting ring surrounding the circumference of the bellows;

[0047] The plurality of limiting rings are fixed by the limiting screws and nuts.

[0048] Preferably, a method for installing the flexible space pipeline vibration test installation device comprises the following steps:

[0049] Step S1, designing a bottom filling flange, a flexible bellows limiting device, and a top pressure measuring flange according to the size of the bellows and the size of the flexible space pipeline end flange;

[0050] Step S2: Install the limit bracket, table adapter, three-way adapter and bottom filling flange on the vibration table in sequence;

[0051] Step S3, using the building block-like ingot assembly to build a gantry, and installing a top pressure measuring flange, a sliding hole flange, a rotating disc, a connecting mechanism, and an adapter plate on the top of the gantry;

[0052] Step S4: Use the flexible bellows limiting device to limit the deformation of the bellows, and connect the lower end of the flexible space pipeline to the bottom filling flange;

[0053] Step S5, adjusting the sliding hole flange, the rotating disc, and the adapter plate, and fixing the connection mechanism at an installation angle where the distance deviation between the top of the flexible space pipeline and the butt joint of the sliding hole flange is less than or equal to 1 mm;

[0054] Step S6: Paste the acceleration sensor and strain gauge on the outer wall of the flexible space pipeline, connect to the vibration test system, add nitrogen or liquid nitrogen, set the test spectrum, remove the flexible bellows limit device and limit bracket, and carry out the flexible space pipeline vibration test.

[0055] Preferably, the length of the limiting rings at both ends is equal to the length of the bellows.

[0056] Compared with the prior art, the present invention has the following beneficial effects:

[0057] 1. The present invention solves the problems of six-degree-of-freedom angle adjustment, displacement loading, and bellows protection for flexible space pipelines; no forced assembly occurs during the installation process, and no additional force or torque is applied to the bellows.

[0058] 2. The present invention provides a standardized approach for the design and installation of test equipment for flexible space pipeline vibration testing, which can realize rapid design and installation of test equipment, significantly reduce test costs, and improve test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0060] Figure 1 This is a schematic diagram of the vibration test installation device structure;

[0061] Figure 2 Schematic diagram of the vibration table structure;

[0062] Figure 3 Schematic diagram of the limiting bracket structure;

[0063] Figure 4 Schematic diagram of the structure of the table transfer device;

[0064] Figure 5 It is a structural diagram of a three-way switching device;

[0065] Figure 6 This is a schematic diagram of the bottom filling flange structure;

[0066] Figure 7 It is a schematic diagram of the flexible space pipeline structure;

[0067] Figure 8 It is a structural diagram of the flexible bellows limiting device;

[0068] Figure 9 This is a schematic diagram of the top pressure measuring flange structure;

[0069] Figure 10 It is a schematic diagram of the sliding hole flange structure;

[0070] Figure 11 It is a schematic diagram of the rotating disk structure;

[0071] Figure 12 Schematic diagram of the adapter plate structure;

[0072] As shown in the figure:

[0073] DETAILED DESCRIPTION

[0074] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0075] Example 1

[0076] like Figure 1 As shown, this embodiment includes: a gantry, a vibration table 1, a limiting bracket 2, a three-way adapter 4, a flexible space pipeline 6, a rotating disc 10 and an adapter plate 12; one end of the flexible space pipeline 6 is connected to the vibration table 1, and the other end is connected to the gantry, the limiting bracket 2 is installed on the vibration table 1, the three-way adapter 4 is installed between the flexible space pipeline 6 and the vibration table 1, the flexible space pipeline 6 is connected to the gantry through the rotating disc 10 and the adapter plate 12, and the flexible bellows limiting device 7 is installed on the flexible space pipeline 6. A tabletop adapter 3 is installed on the vibration table 1, and a three-way adapter 4 is installed on the tabletop adapter 3 facing the side of the flexible space pipeline 6. The three-way adapter 4 is installed on the side of the flexible space pipeline 6, and the bottom filling flange 5 is connected to the flexible space pipeline 6. The gantry can detachably install the ingot 13, and the ingot 13 adopts a building block assembly structure. The ingot 13 is installed with one side of the adapter plate 12 facing the flexible space pipeline 6, and the other side of the adapter plate 12 is installed with a rotating disc 10 through a connecting mechanism 11. The rotating disc 10 is connected to one side of the sliding hole flange 9 facing the flexible space pipeline 6, and the other side of the sliding hole flange 9 is installed with a top pressure testing flange 8. The top pressure testing flange 8 is connected to the end of the flexible space pipeline 6 facing away from the bottom filling flange 5, and a second filling pipeline mounting hole 801 is provided on the middle periphery of the top pressure testing flange 8 for installing the filling pipeline.

[0077] like Figure 2 system Figure 6As shown, the vibration table 1 includes: a vibration table bracket 101, a vibration table dynamic coil 102, an outer ring mounting hole 103, and an inner ring mounting hole 104. The vibration table dynamic coil 102 is mounted on the middle portion of the vibration table bracket 101 facing the flexible space pipe 6. The outer ring mounting hole 103 and the inner ring mounting hole 104 are provided on the side of the vibration table dynamic coil 102 facing the flexible space pipe 6. The outer ring mounting hole 103 is provided outside the inner ring mounting hole 104. The position limiting bracket 2 includes: a first bracket mounting plate 201 and a second bracket mounting plate 202. The first bracket mounting plate 201 is mounted on the side of the position limiting bracket 2 facing the vibration table 1. The first bracket mounting plate 201 is fixedly connected to the second bracket mounting plate 202 on the side facing the flexible space pipe 6. The position limiting bracket 2 is fixedly mounted to the vibration table bracket 101 via the first bracket mounting plate 201. The second bracket mounting plate 202 is threadedly fixedly connected to the outer ring mounting hole 103. The table top adapter device 3 includes: a table top adapter device base plate 301 and a connecting boss 302; the table top adapter device base plate 301 is fixedly connected to the connecting boss 302, the table top adapter device base plate 301 is threadedly fixedly connected to the inner ring mounting hole 104, and a threaded hole is provided on the side of the connecting boss 302 facing away from the table top adapter device base plate 301, and the three-way adapter device 4 is provided with through holes running through the upper and lower surfaces, the through hole on the lower surface of the three-way adapter device 4 is threadedly connected to the connecting boss 302, the through hole on the upper surface of the three-way adapter device 4 is threadedly connected to one end of the bottom filling flange 5, and the other end of the bottom filling flange 5 is connected to the flexible space pipeline 6, and mounting circular holes 401 are provided on the circumferential side of the three-way adapter device 4, and a first filling pipeline mounting hole 501 is provided on the circumferential side of the middle part of the bottom filling flange 5 for installing the filling pipeline.

[0078] like Figures 7 to 12 As shown, the adapter plate 12 includes: a first connecting plate 1201 and a second connecting plate 1202; the first connecting plate 1201 is connected to the second connecting plate 1202 through a vertical plate, a plurality of second transverse strip grooves 1203 are provided on the first connecting plate 1201, and a plurality of second longitudinal strip grooves 1204 are provided on the second connecting plate 1202, the second transverse strip grooves 1203 are perpendicular to the second longitudinal strip grooves 1204, and the adapter plate 12 is connected to the ingot 13 through the second longitudinal strip grooves 1204.

[0079] The rotating disc 10 includes: a second square plate 1001 and a second circular plate 1002; the second square plate 1001 is fixedly connected to the second circular plate 1002, a plurality of first longitudinal strip grooves 1003 are provided on the second square plate 1001, and a plurality of first arc-shaped holes are provided on the second circular plate 1002, the first arc-shaped holes are fixedly connected to the second transverse strip grooves 1203 through the connecting mechanism 11, and the rotating disc 10 is fixedly connected to the adapter plate 12 through the second circular plate 1002. The sliding hole flange 9 includes: a first circular plate 901 and a first square plate 902; the first circular plate 901 is fixedly connected to the first square plate 902, a plurality of first transverse strip grooves 903 are provided on the first square plate 902, a plurality of second arc holes are provided on the first circular plate 901, the first transverse strip grooves 903 are fixedly connected to the first longitudinal strip grooves 1003 through a connecting mechanism 11, the first square plate 902 is fixedly connected to the second square plate 1001, one end of the top pressure measuring flange 8 is connected to the first circular plate 901 through the second arc hole, and the other end is fixedly connected to the flexible space pipeline 6. A bellows 601 is provided on the flexible space pipeline 6, and a flexible bellows limiting device 7 is installed around the bellows 601. The flexible bellows limiting device 7 includes: a limiting semicircular ring 701 and a limiting screw 702. There are multiple limiting semicircular rings 701 and limiting screws 702. Multiple limiting semicircular rings 701 are paired to form annular limiting rings surrounding the bellows 601. Multiple limiting rings are fixed by limiting screws 702 and nuts.

[0080] This embodiment provides an installation method, comprising the following steps: Step S1, designing the bottom filling flange 5, the flexible bellows limiting device 7 and the top pressure measuring flange 8 according to the size of the bellows 601 and the end flange size of the flexible space pipeline 6; Step S2, sequentially installing the limiting bracket 2, the table adapter 3, the three-way adapter 4 and the bottom filling flange 5 on the vibration table 1; Step S3, using the building block-like casting block 13 assembly to build a gantry, and installing the top pressure measuring flange 8, the sliding hole flange 9, the rotating disc 10, the connecting mechanism 11 and the adapter plate 12 on the top of the gantry; Step S4, using the flexible The flexible bellows limiting device 7 limits the deformation of the bellows 601, and connects the lower end of the flexible space pipeline 6 to the bottom filling flange 5; step S5, adjust the sliding hole flange 9, the rotating disk 10 and the adapter plate 12, so that the connection mechanism 11 is fixed at an installation angle where the distance deviation between the flexible space pipeline 6 and the sliding hole flange 9 is less than or equal to 1 mm; step S6, stick the acceleration sensor and the strain gauge on the outer wall of the flexible space pipeline 6, connect the vibration test system, fill with nitrogen or liquid nitrogen, set the test spectrum, remove the flexible bellows limiting device 7 and the limiting bracket 2, and carry out the flexible space pipeline vibration test.

[0081] Example 2

[0082] Example 2 is a preferred example of Example 1.

[0083] like Figure 1 As shown, this example includes: a vibration table 1, a limiting bracket 2, a tabletop adapter 3, a three-way adapter 4, a bottom filling flange 5, a flexible space pipeline 6, a flexible bellows limiting device 7, a top pressure measuring flange 8, a sliding hole flange 9, a rotating disc 10, a connecting mechanism 11, an adapter plate 12 and a casting block 13.

[0084] like Figure 2 As shown, the vibration table 1 has multiple inner ring M16 threads, which can be connected to the φ18 threaded holes at the bottom of the table adapter 3.

[0085] like Figure 3 As shown, the structural height and width of the limiting bracket 2 are determined by the size of the matching vibration table 1; the first mounting plate 201 of the limiting bracket 2 is the mounting surface connected to the vibration table bracket 101, and 4 φ18 holes are evenly distributed on it, which can be screwed to the threaded holes at the four corners of the vibration table bracket 101; the second mounting plate 202 of the limiting bracket 2 is the mounting surface connected to the vibration table dynamic coil 102, and the 2 φ18 holes evenly distributed on it are the mounting positions of the two M16 threaded holes of the outer ring mounting hole 103.

[0086] like Figure 5 As shown, the three-way adapter 4 is designed with through holes running through the upper and lower surfaces. The 8 φ11 through holes on the lower surface are connected to the 8 M10 threads on the top of the table adapter 3; the 8 φ11 through holes on the upper surface are connected to the 8 φ11 holes on the lower surface of the bottom filling flange 5; a φ95 mounting circular hole 401 is opened on the side of the three-way adapter 4 to reserve installation space.

[0087] like Figure 6 As shown, the upper end surface of the bottom filling flange 5 has 8 φ11 holes, which are connected to the lower end surface of the flexible space pipeline 6 through threads; the side of the bottom filling flange 5 has an NPT3 / 8 first filling pipeline installation hole 501 for installing the filling pipeline for filling nitrogen or liquid nitrogen.

[0088] like Figure 7 and Figure 8 As shown, the flexible space pipeline 6 contains a bellows 601 that is easily deformed. The flexible bellows limiting device 7 consists of four limiting semicircular rings 701 with an inner diameter 2 mm larger than the outer diameter of the flexible space pipeline 6 and four limiting screws 702 through 16 connecting nuts. It is fixed to the bellows 601 of the flexible space pipeline 6. The length of the limiting screw 702 is obtained by the length of the bellows 601. The distance between the limiting rings at both ends is consistent with the length of the bellows 601, which limits the deformation of the bellows 601 during the installation process.

[0089] like Figure 9 As shown, the eight φ11 holes on the lower surface of the top pressure measuring flange 8 are connected to the eight φ11 holes on the top surface of the flexible space pipeline 6.

[0090] like Figure 10 As shown, the sliding hole flange 9 is composed of a first circular plate 901 and a first square plate 902 welded together. There are 8 second arc holes on the first circular plate 901, which are connected to the 8 φ11 holes on the upper surface of the top pressure measuring flange 8; there are 3 first transverse strip grooves 903 on the first square plate 902, which are connected to the first longitudinal strip grooves 1003 of the rotating disk 10 through a connecting mechanism 11.

[0091] like Figure 11 As shown, the rotating disc 10 is composed of a second square plate 1001 and a second circular plate 1002 welded together; the second square plate 1001 has four first longitudinal strip grooves 1003; the second circular plate 1002 has four first arc-shaped holes, which are connected to the first connecting plate 1201 of the adapter plate 12 through the connecting mechanism 11.

[0092] like Figure 12 As shown, the second connecting plate 1202 of the adapter plate 12 has 8 second longitudinal strip grooves 1204 connected to the ingot 13; the first connecting plate 1201 has 16 second transverse strip grooves 1203 connected to the 4 first arc holes of the rotating disk 10.

[0093] The ingot 13 is a building block component, and the installation height of the entire test system can be adjusted by adjusting the installation position of the ingot 13 .

[0094] The limiting bracket 2 can limit the displacement of the vibration table dynamic coil 102 due to power outages, insufficient air supply, etc., and protect the safety of the flexible space pipeline 6.

[0095] The sliding hole flange 9 and the rotating disc 10 are obtained by welding.

[0096] The connection mechanism 11 can be a screw or a threaded rod.

[0097] The second transverse strip groove 1203 and the second longitudinal strip groove 1204 of the adapter plate 12 are perpendicular to each other, and the installation position in the plane can be adjusted.

[0098] By replacing the bottom filling flange 5, the flexible bellows limiter 7 and the top pressure measuring flange 8, vibration tests can be carried out on flexible space pipelines 6 of different specifications, thereby reducing test costs and improving test efficiency.

[0099] The specific installation process of this embodiment is as follows:

[0100] Step 1: Design a dedicated bottom filling flange 5, a flexible bellows limiting device 7, and a top pressure measuring flange 8 according to the bellows size and flange size of the flexible space pipeline 6;

[0101] Step 2: Install the limit bracket 2, table adapter 3, three-way adapter 4, and bottom filling flange 5 on the vibration table 1 in sequence;

[0102] Step 3: Use the building block casting 13 components to build a gantry, and install the top pressure measuring flange 8, the sliding hole flange 9, the rotating disc 10, the connecting mechanism 11, and the adapter plate 12 on the top of the gantry;

[0103] Step 4: Use the flexible bellows limiting device 7 to limit the bellows deformation of the flexible space pipeline 6, and connect the lower end of the flexible space pipeline 6 to the bottom filling flange 5;

[0104] Step 5: Adjust the sliding hole flange 9, the rotating disc 10 and the adapter plate 12 so that the flexible space pipe 6 is at the required installation angle and fix the adjustment device 11;

[0105] Step 6: Paste the acceleration sensor and strain gauge as required, connect the vibration test system, add nitrogen or liquid nitrogen, set the test spectrum, remove the flexible bellows limit device 7 and the limit bracket 2, and carry out the flexible space pipeline vibration test.

[0106] Those skilled in the art will appreciate that, in addition to implementing the system and its various devices, modules, and units provided by the present invention in purely computer-readable program code, it is entirely possible to implement the same functions of the system and its various devices, modules, and units provided by the present invention in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system and its various devices, modules, and units provided by the present invention can be considered a hardware component, and the devices, modules, and units included therein for implementing various functions can also be considered as structures within the hardware component; the devices, modules, and units for implementing various functions can also be considered as both software modules implementing the method and structures within the hardware component.

[0107] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0108] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A flexible space pipeline vibration test installation device, characterized in that: include: Gantry, vibration table (1), limit bracket (2), three-way adapter (4), flexible space pipeline (6), rotating disc (10) and adapter plate (12); One end of the flexible space pipe (6) is connected to the vibration table (1), and the other end is connected to the gantry; A limiting bracket (2) is installed on the vibration table (1), and a three-way switching device (4) is installed between the flexible space pipeline (6) and the vibration table (1); The flexible space pipeline (6) is connected to the gantry via a rotating disc (10) and an adapter plate (12); a flexible bellows limiting device (7) is installed on the flexible space pipeline (6); A tabletop adapter (3) is installed on the vibration table (1), and the three-way adapter (4) is installed on the side of the tabletop adapter (3) facing the flexible space pipeline (6); The three-way adapter (4) is provided with a bottom filling flange (5) on one side facing the flexible space pipeline (6), and the bottom filling flange (5) is connected to the flexible space pipeline (6); The gantry is provided with a detachable ingot (13), the ingot (13) adopts a building block assembly structure, the ingot (13) is provided with one side of the adapter plate (12) facing the flexible space pipeline (6), and the other side of the adapter plate (12) is provided with the rotating disc (10) via a connecting mechanism (11); The rotating disc (10) is connected to one side of the sliding hole flange (9) facing the flexible space pipeline (6), and the other side of the sliding hole flange (9) is installed with a top pressure measuring flange (8); The top pressure measuring flange (8) is connected to one end of the flexible space pipeline (6) facing away from the bottom filling flange (5), and a second filling pipeline installation hole (801) is provided on the central circumference of the top pressure measuring flange (8) for installing the filling pipeline; The vibration table (1) comprises: a vibration table bracket (101), a vibration table dynamic coil (102), an outer ring mounting hole (103) and an inner ring mounting hole (104); The vibration table dynamic coil (102) is installed on the middle part of the vibration table bracket (101) toward the side of the flexible space pipeline (6); The vibration table moving coil (102) is provided with an outer ring mounting hole (103) and an inner ring mounting hole (104) on a side facing the flexible space pipeline (6), and the outer ring mounting hole (103) is provided on the outer ring of the inner ring mounting hole (104); A bellows (601) is provided on the flexible space pipeline (6), and the flexible bellows limiting device (7) is installed on the circumference of the bellows (601); The flexible bellows limiting device (7) comprises: a limiting semicircular ring (701) and a limiting screw (702); The limiting semicircular ring (701) and the limiting screw (702) are provided in plurality, and the limiting semicircular rings (701) are arranged in pairs to form an annular limiting ring surrounding the circumference of the bellows (601); The plurality of limiting rings are fixed by the limiting screws (702) and nuts.

2. The flexible space pipeline vibration test installation device according to claim 1 is characterized in that: The position-limiting bracket (2) comprises: a first bracket mounting plate (201) and a second bracket mounting plate (202); The first mounting plate (201) of the bracket is installed on the side of the limiting bracket (2) facing the vibration table (1), and the first mounting plate (201) of the bracket is fixedly connected to the second mounting plate (202) of the bracket on the side facing the flexible space pipeline (6); The limiting bracket (2) is fixedly mounted on the vibration table bracket (101) via the bracket first mounting plate (201); The second mounting plate (202) of the bracket is threadedly fixedly connected to the outer ring mounting hole (103).

3. The flexible space pipeline vibration test installation device according to claim 2 is characterized in that: The table adapter The device (3) includes: a tabletop adapter bottom plate (301) and a connecting boss (302); The tabletop adapter bottom plate (301) is fixedly connected to the connecting boss (302); The bottom plate (301) of the tabletop adapter is threadedly fixedly connected to the inner ring mounting hole (104), and the connecting boss (302) a threaded hole is provided on the side facing away from the bottom plate (301) of the table adapter device; The three-way adapter (4) is provided with through holes penetrating the upper and lower surfaces, the through hole on the lower surface of the three-way adapter (4) is threadedly connected to the connecting boss (302), the through hole on the upper surface of the three-way adapter (4) is threadedly connected to one end of the bottom filling flange (5), and the other end of the bottom filling flange (5) is connected to the flexible space pipeline (6); the three-way adapter (4) is provided with a mounting circular hole (401) on the circumference; A first filling pipeline installation hole (501) is provided on the circumferential side of the middle portion of the bottom filling flange (5) for installing a filling pipeline.

4. The flexible space pipeline vibration test installation device according to claim 1 is characterized in that: The adapter plate (12) comprises: a first connecting plate (1201) and a second connecting plate (1202); The first connecting plate (1201) is connected to the second connecting plate (1202) via a vertical plate member, a plurality of second transverse strip grooves (1203) are provided on the first connecting plate (1201), and a plurality of second longitudinal strip grooves (1204) are provided on the second connecting plate (1202); The second transverse strip groove (1203) is perpendicular to the second longitudinal strip groove (1204); The adapter plate (12) is connected to the ingot (13) via the second longitudinal strip groove (1204).

5. The flexible space pipeline vibration test installation device according to claim 4 is characterized in that: The rotating disc (10) comprises: a second square plate (1001) and a second circular plate (1002); The second square plate (1001) is fixedly connected to the second circular plate (1002); A plurality of first longitudinal strip grooves (1003) are provided on the second square plate (1001), and a plurality of first arc-shaped holes are provided on the second circular plate (1002); The first arc-shaped hole is fixedly connected to the second transverse strip groove (1203) via a connecting mechanism (11), and the rotating disc (10) is fixedly connected to the adapter plate (12) via a second circular plate (1002).

6. The flexible space pipeline vibration test installation device according to claim 5, characterized in that: The sliding hole flange (9) comprises: a first circular plate (901) and a first square plate (902); The first circular plate (901) is fixedly connected to the first square plate (902), a plurality of first transverse strip grooves (903) are provided on the first square plate (902), and a plurality of second arc-shaped holes are provided on the first circular plate (901); The first transverse strip groove (903) is fixedly connected to the first longitudinal strip groove (1003) via a connecting mechanism (11), and the first square plate (902) is fixedly connected to the second square plate (1001); One end of the top pressure measuring flange (8) is connected to the first circular plate (901) through the second arc-shaped hole, and the other end is fixedly connected to the flexible space pipeline (6).

7. A method for installing the flexible space pipeline vibration test installation device according to claim 1, characterized in that: Bag The following steps are included: Step S1, designing the bottom filling flange (5), the flexible bellows limiting device (7) and the top pressure measuring flange (8) according to the size of the bellows (601) and the end flange size of the flexible space pipeline (6); Step S2, sequentially installing the limiting bracket (2), the tabletop adapter (3), the three-way adapter (4) and the bottom filling flange (5) on the vibration table (1); Step S3, using the building block-like ingot (13) assembly to build a gantry, and installing a top pressure measuring flange (8), a sliding hole flange (9), a rotating disc (10), a connecting mechanism (11) and an adapter plate (12) on the top of the gantry; Step S4, using the flexible bellows limiting device (7) to limit the deformation of the bellows (601), and connecting the lower end of the flexible space pipeline (6) to the bottom filling flange (5); Step S5, adjusting the sliding hole flange (9), the rotating disc (10) and the adapter plate (12), and fixing the connecting mechanism (11); Step S6, attaching an acceleration sensor and a strain gauge to the outer wall of the flexible space pipeline (6), connecting to a vibration test system, filling with nitrogen or liquid nitrogen, setting a test spectrum, removing the flexible bellows limiter (7) and the limiter bracket (2), and carrying out a vibration test of the flexible space pipeline.

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