Rocket accumulator loading test device

Abstract

The utility model relates to a kind of accumulator loading test device for rocket, including multi-pass pipe, liquid storage shell and piston rod, liquid storage shell is the hollow structure of one end opening and its opening structure place detachably connected and is communicated on the any port of multi-pass pipe, the other port of multi-pass pipe is used for detachably installing stopper and / or accumulator body for rocket;Two liquid inlets, which are communicated with the inside of liquid storage shell, are provided on the side wall of liquid storage shell along the axial direction of liquid storage shell, the end, which is away from multi-pass pipe, of accumulator body for rocket is provided with gas inlet, which is communicated with the inside of accumulator body for rocket, multi-pass pipe and gas inlet are respectively located on the two sides of diaphragm box inside accumulator body for rocket;Piston rod is slidably fitted in the end, which is away from multi-pass pipe, of liquid storage shell, and the end, which is inside liquid storage shell, of piston rod is installed with piston.The utility model can reduce the preparation period of loading test, reduce test operation, improve the efficiency of test, reduce artificial cost.

Description

Technical Field

[0001] This utility model relates to the field of test device technology, and in particular to a test device for loading a rocket accumulator. Background Technology

[0002] In the aerospace field, such as in rocket engine fuel supply systems, rocket accumulators are used to suppress pressure pulsations in the rocket's internal pipelines to ensure stable fuel delivery. The core component of a rocket accumulator is its internal diaphragm. During its service life, the diaphragm must withstand constantly changing high pressures and impact loads on both sides. Therefore, the reliability of the diaphragm during its service is crucial. It must undergo rigorous loading tests on the ground before being installed in the rocket engine's fuel supply system to ensure its normal operation.

[0003] Currently, existing methods for loading tests on diaphragms in rocket accumulators suffer from problems such as long preparation cycles and cumbersome test operations, leading to low test efficiency and increased labor costs.

[0004] Therefore, how to improve the testing efficiency of loading tests on diaphragms in rocket accumulators, while reducing the labor costs of loading tests on diaphragms in rocket accumulators, has become an urgent problem to be solved. Utility Model Content

[0005] The purpose of this invention is to provide a rocket accumulator loading test device to solve the problems existing in the prior art.

[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides a loading test device for a rocket accumulator, including a multi-port pipe, a liquid storage shell, and a piston rod, wherein: The liquid storage shell is a hollow structure with one open end, and its open end can be detachably connected to and communicate with any port of the multi-port pipe. The other ports of the multi-port pipe are used for detachably installing plugs and / or rocket accumulator bodies. At least two liquid inlets communicating with the interior of the liquid storage shell are provided on the side wall along the axial direction of the liquid storage shell, and the liquid inlets allow the liquid medium to enter the interior of the liquid storage shell. The rocket accumulator body has an air inlet at one end away from the multi-port pipe, which is connected to the interior of the rocket accumulator body. The air inlet allows gaseous medium to enter the interior of the rocket accumulator body. The multi-port pipe and the air inlet are located on both sides of the diaphragm box inside the rocket accumulator body. The piston rod is slidably fitted at the end of the liquid storage housing away from the multi-port pipe, and a piston is installed at the end of the piston rod located inside the liquid storage housing. The outer wall of the piston is slidably fitted with the inner wall of the liquid storage housing.

[0007] According to one embodiment of the present invention, the multi-port pipe is a positive four-way pipe, and the plug and the liquid storage shell are respectively installed on two opposite ports of the multi-port pipe; The rocket accumulator body is of two types, and the two rocket accumulator bodies are respectively installed on the other two opposite ports of the multi-port pipe.

[0008] According to one embodiment of the present invention, a connecting component is installed at the bottom end of both the multi-port pipe and the liquid storage shell, and a supporting component is installed at the bottom end of the connecting component.

[0009] According to one embodiment of the present invention, the connecting assembly includes a first connecting plate, a second connecting plate, and a third connecting plate, wherein: The number of the first connecting plates is at least two, and the two first connecting plates are respectively installed at the bottom end of the multi-port pipe and the bottom end of the liquid storage shell; The second connecting plate is installed at the bottom end of the first connecting plate, the third connecting plate is detachably installed at the bottom end of the second connecting plate, and the third connecting plate is installed at the top end of the support assembly.

[0010] According to one embodiment of the present invention, the support assembly includes at least a first bracket, and the third connecting plate is mounted on the top of the first bracket; The support assembly further includes a second bracket, which is mounted on the first bracket, and the bottom end of the second bracket is flush with the bottom end of the first bracket.

[0011] According to one embodiment of the present invention, the first bracket is an L-shaped structure, the second bracket is a C-shaped structure, and the connection between the first bracket and the second bracket is vertically arranged. Reinforcing ribs are installed at the bends of the first bracket, the bends of the second bracket, and the connection between the first bracket and the second bracket. Both the bottom end of the first bracket and the bottom end of the second bracket are equipped with mounting bases.

[0012] According to one embodiment of the present invention, a connecting ring is installed at the end of the piston rod away from the liquid storage shell, and a driving mechanism is installed on the connecting ring. The driving mechanism is used to drive the piston to move along the length direction of the liquid storage shell within the liquid storage shell.

[0013] According to one embodiment of the present invention, the driving mechanism includes a hydraulic cylinder, and the telescopic end of the hydraulic cylinder is connected to the connecting ring.

[0014] According to one embodiment of the present invention, a spring energy storage sealing ring is provided between the piston rod and the liquid storage shell, the outer ring of the spring energy storage sealing ring is connected to the liquid storage shell, and the inner ring of the spring energy storage sealing ring is slidably engaged with the outer side wall of the piston rod.

[0015] According to one embodiment of the present invention, a handle is installed at the end of the plug away from the multi-port pipe.

[0016] Beneficial effects This utility model has at least the following technical effects: This invention, through the arrangement of a multi-port pipe, a liquid storage shell, and a piston rod, enables rapid, convenient, and accurate loading tests on the diaphragm box in a rocket accumulator. This reduces the preparation period for loading tests, reduces test operations, thereby improving the efficiency of loading tests and reducing the labor costs associated with conducting them. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A schematic diagram of the overall structure from another angle; Figure 3 for Figure 2 A schematic diagram of the overall structure from another angle; Figure 4 This is a schematic diagram of the overall structure of the multi-port pipe in this utility model; Figure 5 This is a schematic diagram of the overall structure of the liquid storage shell, piston rod, connecting ring and liquid inlet in this utility model; Figure 6 This is a schematic diagram of the overall structure of the first connecting plate, the second connecting plate, and the third connecting plate in this utility model; Figure 7 A schematic diagram of the overall structure of the plug and handle; Figure 8 This is a schematic diagram of the overall structure of the rocket accumulator body and air inlet.

[0019] Explanation of reference numerals in the attached figures: 1. Multi-port pipe; 2. Plug; 3. Rocket accumulator body; 4. Liquid storage shell; 5. Piston rod; 6. Connecting ring; 7. Liquid inlet; 8. First connecting plate; 9. Second connecting plate; 10. Third connecting plate; 11. Handle; 12. Air inlet; 13. First bracket; 14. Second bracket; 15. Mounting base. Detailed Implementation

[0020] The features and exemplary embodiments of various aspects of this utility model will be described in detail below. To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this utility model and to exemplarily illustrate the principles of this utility model, and are not configured to limit this utility model. In addition, the structural components in the drawings are not necessarily drawn to scale. For example, the dimensions of some structural components or regions in the drawings may be enlarged for other structural components or regions to aid in the understanding of the embodiments of this utility model.

[0021] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this utility model. In the description of this utility model, it should be noted that, unless otherwise stated, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Furthermore, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a structure or component that includes a list of elements includes not only those elements but also other structural elements that are not expressly listed or inherent to the structure or component. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the article or apparatus that includes the element.

[0023] Spatial relation terms such as "below," "under," "under," "low," "above," "on," and "high" are used for descriptive convenience to explain the positioning of one element relative to a second element, indicating that these terms are intended to cover different orientations of the device, in addition to those different from those shown in the figure. Furthermore, phrases such as "one element on / below another element" can indicate that two elements are in direct contact, or that there are other elements between the two elements. In addition, terms such as "first" and "second" are also used to describe individual elements, areas, parts, etc., without specifically indicating order or sequence, and should not be considered restrictive. Similar terms are used throughout the description to represent similar elements.

[0024] For those skilled in the art, this invention can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples.

[0025] In the following embodiments, there may be descriptions such as "this device". Those skilled in the art should understand that "this device" refers to a rocket accumulator loading test device provided by this utility model.

[0026] like Figures 1-8 As shown, this utility model provides a loading test device for a rocket accumulator. Figures 1-3 As shown, this device includes at least a multi-port pipe 1, a liquid storage shell 4, and a piston rod 5, wherein: like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the liquid storage shell 4 is a hollow structure with one open end, and its (i.e., the liquid storage shell 4) open structure can be detachably connected and connected to any one port of the multi-port pipe 1. The other ports of the multi-port pipe 1 are used for detachable installation of the plug 2 and / or the rocket accumulator body 3 (the rocket accumulator body 3 is the rocket accumulator that needs to be loaded for testing).

[0027] In this embodiment, as Figure 5 As shown, the liquid storage shell 4 can be a cylindrical structure, which is not particularly limited here.

[0028] In this embodiment, as Figure 7 As shown, the plug 2 can be a flat cylindrical structure, which is not particularly limited here.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, at least two inlets 7 are provided on the side wall of the liquid storage shell 4 along the axial direction (i.e., the length direction of the liquid storage shell 4), both of which are connected to the interior of the liquid storage shell 4. The inlets 7 are configured to allow liquid medium to enter the interior of the liquid storage shell 4, that is, the liquid medium can enter the interior of the liquid storage shell 4 through the inlets 7.

[0030] In this embodiment, the liquid medium can be water, which is known in the art, and is not particularly limited thereto.

[0031] In this embodiment, as Figure 1 As shown, the number of liquid inlets 7 can be four, and there is no particular limitation here. Preferably, any two liquid inlets 7 can be located on the side wall of the liquid storage shell 4 near the end of the multi-port pipe 1, while the other two liquid inlets 7 can be located on the side wall of the liquid storage shell 4 away from the end of the multi-port pipe 1.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, the rocket accumulator body 3, located away from the multi-port pipe 1, has an air inlet 12 that communicates with the interior of the rocket accumulator body 3. The air inlet 12 is configured to allow gaseous media to enter the interior of the rocket accumulator body 3, that is, gaseous media can enter the interior of the rocket accumulator body 3 through the air inlet 12.

[0033] In this embodiment, the gaseous medium can be helium, which is known in the art, and is not particularly limited herein.

[0034] It should be understood that, in this embodiment, since the multi-port pipe 1 and the air inlet 12 are located at both ends of the rocket accumulator body 3, and the multi-port pipe 1, the liquid storage shell 4, and the end of the rocket accumulator body 3 away from the air inlet 12 are all interconnected, the multi-port pipe 1 and the air inlet 12 are located on both sides of the diaphragm box (not shown in the figure) (the diaphragm box is a component known in the art) inside the rocket accumulator body 3. Thus, liquid medium and gaseous medium can be introduced into both ends of the diaphragm box inside the rocket accumulator body 3, thereby enabling the use of liquid medium and gaseous medium to perform loading tests on the diaphragm box inside the rocket accumulator body 3.

[0035] like Figure 2 and Figure 5 As shown, the piston rod 5 is slidably fitted onto the end of the liquid storage housing 4 away from the multi-port pipe 1. In this embodiment, as... Figure 2As shown, the piston rod 5 can pass through and slide on the end of the liquid storage shell 4 away from the multi-port pipe 1. Therefore, one end of the piston rod 5 will be located inside the liquid storage shell 4, and the other end of the piston rod 5 will be located outside the liquid storage shell 4. A piston (not shown in the figure) is installed at the end of the piston rod 5 inside the liquid storage shell 4, and the outer wall of the piston is configured to slide against the inner wall of the liquid storage shell 4.

[0036] In this embodiment, the piston is located between two sets of inlets 7 that are spaced apart along the axial direction of the liquid storage shell 4.

[0037] In this embodiment, a rubber ring (not shown in the figure) known in the art is installed on the outer wall of the piston, and the end of the rubber ring away from the piston is configured to slide against the inner wall of the liquid storage shell 4, thereby improving the sealing performance at both ends of the piston.

[0038] In this embodiment, the method of introducing gaseous and liquid media is not particularly limited; for example, it can be configured as follows: A gaseous medium pipeline (not shown in the figure but known in the art) is connected to and communicates with the air inlet 12 (that is, the end of the air inlet 12 away from the rocket accumulator body 3). A first branch liquid medium pipeline and a second branch liquid medium pipeline (both not shown in the figure but known in the art) are respectively connected to and communicate with two sets of liquid inlets 7 arranged at intervals along the axial direction of the liquid storage shell 4 (that is, the end of the liquid inlet 7 away from the liquid storage shell 4). The end of the first branch liquid medium pipeline away from the liquid storage shell 4 is connected to the end of the second branch liquid medium pipeline away from the liquid storage shell 4. At the same time, the connection between the first branch liquid medium pipeline and the second branch liquid medium pipeline is connected to and communicates with a main liquid medium pipeline (not shown in the figure but known in the art). The external gas supply device (not shown in the figure and known in the art) can introduce gaseous medium (helium in this embodiment) into the air inlet 12 through a gaseous medium pipeline, while the external liquid supply device (not shown in the figure and known in the art) can introduce liquid medium (water in this embodiment) into the liquid inlet 7 through a liquid medium main pipeline, a first branch liquid medium pipeline and a second branch liquid medium pipeline. The liquid medium and gaseous medium will then enter the two ends of the diaphragm box inside the rocket accumulator body 3, thereby enabling the loading test of the diaphragm box inside the rocket accumulator body 3.

[0039] Furthermore, in order to better control and monitor the pressure of the liquid and gaseous media, in this embodiment, a first pressure sensor (not shown in the figure but known in the art) and a first hand valve (not shown in the figure but known in the art) are installed on the gaseous media pipeline, and a second pressure sensor (not shown in the figure but known in the art) and a second hand valve (not shown in the figure but known in the art) are installed on the liquid media main pipeline.

[0040] In this embodiment, as Figures 1-4 As shown, multi-port pipe 1 is a positive four-way pipe.

[0041] It should be understood that the use of a four-way pipe as the multi-port pipe 1 is merely one preferred embodiment in this example, and does not limit the multi-port pipe 1 to only being a four-way pipe. In other words, those skilled in the art can replace the multi-port pipe 1 with a three-way pipe, a five-way pipe, or a six-way pipe, etc., according to the actual loading test requirements.

[0042] In this embodiment, as Figures 1-3 As shown, since the multi-port pipe 1 can be a four-way pipe, the plug 2 and the liquid storage shell 4 can be installed on any two opposite ports of the multi-port pipe 1. The number of rocket accumulator bodies 3 can also be two, and the two rocket accumulator bodies 3 can be installed on the other two opposite ports of the multi-port pipe 1.

[0043] When the multi-port pipe 1 is a positive four-way pipe and there are two rocket accumulator bodies 3, the loading test can be carried out on the diaphragm boxes inside the two rocket accumulator bodies 3 at the same time. Therefore, compared with the traditional device or method that can only carry out the loading test on the diaphragm box inside one rocket accumulator body 3, this device greatly improves the efficiency of loading test.

[0044] Meanwhile, when the multi-port pipe 1 is a positive four-way pipe, if it is necessary to conduct loading tests on the diaphragms inside the three rocket accumulator bodies 3 at the same time, then the plug 2 does not need to be installed on the multi-port pipe 1. That is, the rocket accumulator bodies 3 are installed on the three empty ports of the multi-port pipe 1 respectively, and then the loading tests on the diaphragms inside the three rocket accumulator bodies 3 can be conducted at the same time according to actual needs.

[0045] Similarly, when the multi-port pipe 1 is a positive four-way pipe, if only the diaphragm box inside the rocket accumulator body 3 needs to be loaded for testing, then the plug 2 can be installed on any two of the three empty ports of the multi-port pipe 1, and the rocket accumulator body 3 can be installed on the remaining empty port. Then, the diaphragm box inside the rocket accumulator body 3 can be loaded for testing according to actual needs.

[0046] In summary, since the multi-port pipe 1 can also be a three-way pipe, a five-way pipe, or a six-way pipe, and the number of plugs 2 and whether the plugs 2 are installed on the multi-port pipe 1 can be adjusted according to actual needs, those skilled in the art can use this device to conduct loading tests on the diaphragm boxes inside one or more rocket accumulator bodies 3 according to actual needs, thereby greatly improving the efficiency of loading tests while also meeting various test requirements.

[0047] Furthermore, in order to improve the sealing performance between the plug 2 and the multi-port pipe 1, a sealing gasket (not shown in the figure), which is known in the art, is provided between the plug 2 and the multi-port pipe 1. The sealing gasket can be made of rubber material known in the art, and is not particularly limited here.

[0048] According to one embodiment of the present invention, a connecting component is installed at the bottom end of both the multi-port pipe 1 and the liquid storage shell 4, and a supporting component is installed at the bottom end of the connecting component. The connecting component is configured to connect the multi-port pipe 1 to the supporting component and the liquid storage shell 4 to the supporting component, respectively, while the supporting component is configured to support the multi-port pipe 1 and the liquid storage shell 4.

[0049] In this embodiment, specifically, as Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the connecting assembly includes at least a first connecting plate 8, a second connecting plate 9, and a third connecting plate 10, wherein: like Figures 1-3 As shown, there are at least two first connecting plates 8, and the two first connecting plates 8 are respectively installed at the bottom end of the multi-port pipe 1 and the bottom end of the liquid storage shell 4. Among them, the first connecting plate 8 at the bottom end of the multi-port pipe 1 (that is, the first connecting plate 8 corresponding to the multi-port pipe 1) is connected to the outer wall of the multi-port pipe 1, and the first connecting plate 8 at the bottom end of the liquid storage shell 4 (that is, the first connecting plate 8 corresponding to the liquid storage shell 4) is connected to the outer wall of the liquid storage shell 4.

[0050] In this embodiment, as Figure 3 As shown, there can be three first connecting plates 8, where any two first connecting plates 8 can be installed at the bottom of the liquid storage shell 4, and the other first connecting plate 8 can be installed at the bottom of the multi-port pipe 1.

[0051] In this embodiment, as Figure 6 As shown, the top of the first connecting plate 8 (i.e. Figure 6 The top end of the first connecting plate 8 can be an arc-shaped structure, which can better adapt to the outer surface shape of the multi-port pipe 1 and the liquid storage shell 4. The connection between the first connecting plate 8 and the multi-port pipe 1, and between the first connecting plate 8 and the liquid storage shell 4, can be made by welding connection methods known in the art, and no particular limitation is made here.

[0052] In this embodiment, as Figure 6 As shown, the second connecting plate 9 is installed at the bottom of the first connecting plate 8, and the third connecting plate 10 is detachably installed at the bottom of the second connecting plate 9, and the third connecting plate 10 is installed at the top of the support assembly (that is, the bottom of the third connecting plate 10 is connected to the top of the support assembly).

[0053] In this embodiment, as Figure 6 As shown, both the second connecting plate 9 and the third connecting plate 10 can be cuboid structures, without any particular limitation. The first connecting plate 8 can be perpendicular to the second connecting plate 9, and the first connecting plate 8 can be connected to the second connecting plate 9 by welding, without any particular limitation.

[0054] In this embodiment, as Figure 6 As shown, the second connecting plate 9 can be connected to the third connecting plate 10 by bolt connection as is known in the art (i.e., the above-mentioned detachable installation), without any particular limitation.

[0055] In this embodiment, more specifically, such as Figures 1-3 As shown, the support assembly includes at least a first bracket 13. The bottom end of the third connecting plate 10 is mounted on the top end of the first bracket 13.

[0056] In this embodiment, the bottom end of the third connecting plate 10 can be connected to the top end of the first bracket 13 by welding, which is not particularly limited here.

[0057] like Figures 1-3 As shown, the support component in this embodiment further includes a second bracket 14. The second bracket 14 is mounted on the first bracket 13, and the bottom end of the second bracket 14 is flush with the bottom end of the first bracket 13.

[0058] In this embodiment, as Figures 1-3 As shown, both the first support 13 and the second support 14 can be square beams or square tubes known in the art, and are not particularly limited here. The second support 14 can be installed on the first support 13 by welding, and is not particularly limited here either.

[0059] Preferably, such as Figures 1-3 As shown, the first support 13 can be or approximately L-shaped, while the second support 14 can be or approximately C-shaped, and the connection between the first support 13 and the second support 14 is vertically arranged. That is, the top or bottom views of the first support 13 and the second support 14 will form or approximately T-shaped structures.

[0060] Furthermore, in order to improve the strength of the first support 13 and the second support 14, such as Figures 1-3 As shown, reinforcing ribs are installed (welded) at the bends of the first bracket 13, the bends of the second bracket 14, and the connection between the first bracket 13 and the second bracket 14.

[0061] Furthermore, in order to more securely mount this device on the test bench (or ground), such as Figures 1-3As shown, mounting bases 15 are installed at the bottom ends of both the first bracket 13 and the second bracket 14. Wherein, as... Figures 1-3 As shown, the mounting base 15 can be provided with several threaded holes, so that the device can be firmly installed on the test bench (or ground) by means of bolt connection.

[0062] According to one embodiment of the present invention, a connecting ring 6 is installed at the end of the piston rod 5 away from the liquid storage shell 4 (i.e., the end of the piston rod 5 located outside the liquid storage shell 4). A driving mechanism (not shown in the figure) is installed on the connecting ring 6. The driving mechanism can be used to drive the piston rod 5 to move along the length direction of the liquid storage shell 4, that is, to make the piston move along the length direction of the liquid storage shell 4 inside the liquid storage shell 4.

[0063] In this embodiment, the specific component of the drive mechanism is not particularly limited, as long as it enables the piston rod 5 and the piston to move along the length of the liquid storage housing 4. For example, the drive mechanism may include a hydraulic cylinder known in the art. That is, the drive mechanism in this embodiment can be a hydraulic cylinder known in the art, and the telescopic end of the hydraulic cylinder can be connected to the connecting ring 6 by a bolt connection method known in the art. This is not particularly limited here.

[0064] Furthermore, to ensure the sealing between the piston rod 5 and the liquid storage shell 4, and thus prevent leakage of the liquid medium, a spring-loaded sealing ring (not shown in the figure but known in the art) (also known as a sealing ring) is provided between the piston rod 5 and the liquid storage shell 4. The outer ring of the spring-loaded sealing ring is connected to the liquid storage shell 4, and the inner ring of the spring-loaded sealing ring is configured to slide against the outer wall of the piston rod 5.

[0065] Furthermore, to facilitate the removal of the plug 2, a handle 11 is installed at the end of the plug 2 away from the multi-port pipe 1.

[0066] In this embodiment, the handle 11 can be installed at the center of the end of the plug 2 away from the multi-port pipe 1 by a welding connection method known in the art, without any particular limitation.

[0067] In this embodiment, as Figure 4 As shown, flanges known in the art can be welded to multiple ports of the multi-port pipe 1, and the plug 2 and the rocket accumulator body 3 can be installed on the flanges at multiple ports of the multi-port pipe 1 by means of bolt connection, without any particular limitation.

[0068] The working process of this device will be briefly described below with reference to the above embodiments: First, after assembling the device, the mounting base 15 is installed on the test bench using bolts, thus securing the device. This also ensures the multi-port pipe 1, the liquid storage shell 4, and the piston rod 5 are level, guaranteeing that the device's levelness error meets the test requirements.

[0069] Secondly, based on actual experimental requirements, a plug 2 and / or a rocket accumulator body 3 are installed on the empty port of the multi-port pipe 1. This working process is based on... Figure 1 Taking the state in the middle as an example, that is, using the four-way pipe (i.e., multi-way pipe 1) to simultaneously carry out loading tests on two rocket accumulator bodies 3, at this time the number of plugs 2 installed on the multi-way pipe 1 is one.

[0070] Then, the gaseous medium pipeline is installed on the air inlet 12 on the rocket accumulator body 3, while the first branch liquid medium pipeline and the second branch liquid medium pipeline are installed on two sets of liquid inlets 7 spaced apart along the axial direction of the liquid storage shell 4. The gaseous medium pipeline and the air inlet 12, and the first branch liquid medium pipeline and the second branch liquid medium pipeline and the liquid inlet 7, can all be connected by hose clamps (not shown in the figure) known in the art, and are not particularly limited here.

[0071] Next, open the external gas supply equipment and the external liquid supply equipment, and simultaneously open the first hand valve and the second hand valve until gaseous and liquid media of suitable test pressure are added to both ends of the diaphragm box inside the rocket accumulator body 3.

[0072] Finally, the parameters of the drive mechanism are set and the drive mechanism is started, so that the piston rod 5 and the piston are displaced along the length of the liquid storage shell 4, thereby enabling a loading test on the diaphragm box inside the rocket accumulator body 3. During the loading test, the test data can be recorded using the readings of the first pressure sensor, the readings of the second pressure sensor, and a specified sampling frequency.

[0073] It should be understood that the above-described embodiments or examples of this utility model can be combined with each other and have corresponding technical effects.

[0074] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rocket accumulator loading test device, characterized in that, It includes a multi-port pipe (1), a liquid storage shell (4), and a piston rod (5), wherein: The liquid storage shell (4) is a hollow structure with one end open, and its opening structure can be detachably connected to and communicate with any port of the multi-port pipe (1). The other ports of the multi-port pipe (1) are used for detachably installing the plug (2) and / or the rocket accumulator body (3). At least two inlets (7) communicating with the interior of the liquid storage shell (4) are provided on the side wall of the liquid storage shell (4) along the axial direction of the liquid storage shell (4), and the liquid inlets (7) allow the liquid medium to enter the interior of the liquid storage shell (4). The rocket accumulator body (3) has an air inlet (12) connected to the interior of the rocket accumulator body (3) at one end away from the multi-port pipe (1). The air inlet (12) allows gaseous medium to enter the interior of the rocket accumulator body (3). The multi-port pipe (1) and the air inlet (12) are located on both sides of the diaphragm box inside the rocket accumulator body (3). The piston rod (5) is slidably fitted at one end of the liquid storage shell (4) away from the multi-port pipe (1). A piston is installed at one end of the piston rod (5) inside the liquid storage shell (4). The outer side wall of the piston is slidably fitted with the inner side wall of the liquid storage shell (4).

2. The rocket accumulator loading test device according to claim 1, characterized in that, The multi-port pipe (1) is a positive four-way pipe, and the plug (2) and the liquid storage shell (4) are respectively installed on two opposite ports of the multi-port pipe (1); The rocket accumulator body (3) is two in number, and the two rocket accumulator bodies (3) are respectively installed on the other two opposite ports of the multi-port pipe (1).

3. The rocket accumulator loading test device according to claim 1, characterized in that, Both the multi-port pipe (1) and the liquid storage shell (4) are equipped with connecting components at their bottom ends, and the connecting components are equipped with supporting components at their bottom ends.

4. The rocket accumulator loading test device according to claim 3, characterized in that, The connecting assembly includes a first connecting plate (8), a second connecting plate (9), and a third connecting plate (10), wherein: The number of the first connecting plates (8) is at least two, and the two first connecting plates (8) are respectively installed at the bottom end of the multi-port pipe (1) and the bottom end of the liquid storage shell (4); The second connecting plate (9) is installed at the bottom end of the first connecting plate (8), the third connecting plate (10) is detachably installed at the bottom end of the second connecting plate (9), and the third connecting plate (10) is installed at the top end of the support assembly.

5. The rocket accumulator loading test device according to claim 4, characterized in that, The support assembly includes at least a first bracket (13), and the third connecting plate (10) is mounted on the top of the first bracket (13); The support assembly also includes a second bracket (14), which is mounted on the first bracket (13), and the bottom end of the second bracket (14) is flush with the bottom end of the first bracket (13).

6. The rocket accumulator loading test apparatus according to claim 5, characterized in that, The first support (13) is an L-shaped structure, the second support (14) is a C-shaped structure, and the connection between the first support (13) and the second support (14) is vertically arranged; Reinforcing ribs are installed at the bends of the first bracket (13), the bends of the second bracket (14), and the connection between the first bracket (13) and the second bracket (14); The bottom end of the first bracket (13) and the bottom end of the second bracket (14) are both equipped with mounting bases (15).

7. The rocket accumulator loading test device according to claim 1, characterized in that, A connecting ring (6) is installed at one end of the piston rod (5) away from the liquid storage shell (4). A driving mechanism is installed on the connecting ring (6). The driving mechanism is used to drive the piston to move along the length direction of the liquid storage shell (4) within the liquid storage shell (4).

8. The rocket accumulator loading test apparatus according to claim 7, characterized in that, The driving mechanism includes a hydraulic cylinder, the telescopic end of which is connected to the connecting ring (6).

9. The rocket accumulator loading test apparatus according to claim 1, characterized in that, A spring energy storage sealing ring is provided between the piston rod (5) and the liquid storage shell (4). The outer ring of the spring energy storage sealing ring is connected to the liquid storage shell (4), and the inner ring of the spring energy storage sealing ring is slidably engaged with the outer side wall of the piston rod (5).

10. The rocket accumulator loading test apparatus according to claim 1, characterized in that, The end of the plug (2) away from the multi-port pipe (1) is equipped with a handle (11).

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