Temperature environment test system for upright test of solid rocket engine

Abstract

The invention provides a temperature environment test system for a solid rocket engine upright test, and belongs to the field of solid rocket engine temperature environment tests. In the system, a through type opening is formed in the bottom of a test box body; the top end of a track on the ground of the test plant extends below the test box; the fixed bearing platform is fixedly arranged between the top end of the ground track and the bottom of the test box body, a groove matched with the opening in the bottom of the test box body is formed in the fixed bearing platform, and the transfer trolley platform can move into the groove along the ground track. According to the invention, after the transfer trolley platform enters the groove, the sealed bottom of the test box is formed, so that the safety risk caused by the superposition of the self height and the transfer trolley height during the vertical transfer of the existing engine can be thoroughly eliminated; meanwhile, the height of the test box body does not need to cover the height of a transfer trolley platform, so that the height of a traditional vertical test box is reduced, and the problems of poor stability and high construction cost caused by an overhigh box body structure are fundamentally solved.

Description

Technical Field

[0001] This invention belongs to the field of solid rocket engine temperature environment testing technology, specifically relating to a temperature environment testing system for upright solid rocket engine testing. Background Technology

[0002] In the research, development, performance testing, and reliability assessment of solid rocket engines, ground temperature environment tests are required to simulate actual operating conditions and assess indicators such as the engine's structural integrity and performance reliability. Currently, conventional temperature tests are usually conducted with the engine in a horizontal position, i.e., the engine is placed horizontally inside the temperature test equipment. This method does not need to consider the height problem of the test chamber caused by the large diameter of the engine.

[0003] However, existing technologies for vertical temperature environment testing have significant drawbacks: After the engine is transported horizontally to the test workshop by truck, a series of preparatory work is completed in its horizontal state, such as attaching sensors and installing transition frames. After the preparation work is completed, it needs to be tilted into an upright state by a crane and fixed on a transfer vehicle platform. The transfer vehicle platform carrying the upright engine moves along ground tracks and passes the bottom plate of the vertical temperature test chamber before entering the chamber. This process is particularly problematic for engines with large length-to-diameter ratios, as the combined height of the engine and the transfer vehicle results in excessive height during engine transfer, posing a safety risk. At the same time, the test chamber must meet overall height requirements, resulting in an excessively tall chamber structure with poor stability, increasing the cost of the testing equipment and the difficulty of implementation. Summary of the Invention

[0004] The purpose of this invention is to solve the safety risks caused by excessive overall height during the vertical transfer of solid rocket engines in existing technologies, as well as the poor stability caused by excessively tall test chamber structures. To address these issues, a novel temperature environment test system for vertical solid rocket engine testing is proposed, which can reduce the storage height of solid rocket engines and the height of test equipment in vertical testing, thereby reducing safety risks during the transfer process.

[0005] To achieve the above objectives, the technical solution provided by this invention is:

[0006] A temperature environment test system for upright testing of solid rocket motors is provided, including a test chamber body, ground track, transfer vehicle platform, fixed bearing platform and sealing structure;

[0007] The bottom of the test chamber body has a through opening;

[0008] The ground track is laid on the floor of the test plant, and the top of the track extends to the bottom of the test chamber body;

[0009] The transport trolley platform is used for carrying the vertical engine to be tested and can move along the ground track;

[0010] The fixed bearing platform is fixedly arranged between the top end of the ground track and the bottom of the test box body, and a groove matched with the opening at the bottom of the test box body is formed in the fixed bearing platform.

[0011] The sealing structure is arranged at the contact interface between the test box body and the fixed bearing platform.

[0012] When the transport trolley platform enters the groove, the surface of the transport trolley platform constitutes the sealed bottom of the test box body.

[0013] Further, the sealing structure is also arranged at the contact interface between the fixed bearing platform and the upper surface of the transport trolley platform.

[0014] Further, the sealing structure comprises a sealing glue layer coated at the contact interface between the bottom of the test box body and the fixed bearing platform, and a sealing glue strip arranged at the contact interface between the fixed bearing platform and the upper surface of the transport trolley platform.

[0015] Further, the ground track is sunkenly arranged on the ground of the test factory to make the bottom surface height of the transport trolley platform as close as possible to the ground of the test factory.

[0016] Further, the groove on the fixed bearing platform is a reverse T-shaped groove, comprising: an upper groove, the contour of which is matched with the size of the opening at the bottom of the test box body, for the engine to enter; and a lower groove, the size of which is larger than that of the upper groove, for the transport trolley platform to enter.

[0017] Further, the fixed bearing platform is a reinforced concrete pouring structure.

[0018] Further, the side wall of the test box body and the fixed bearing platform are fixedly connected through bolts to form an integral bearing structure.

[0019] The advantages of the present application are:

[0020] 1. The temperature environment test system for the vertical test of the solid rocket engine provided by the present application can form the sealed bottom of the test box after the transport trolley platform enters the groove, through the structure cooperation of the through opening at the bottom of the test box body, the ground track and the groove of the fixed bearing platform, so that the safety risk caused by the superposition of the height of the engine itself and the height of the transport trolley during the vertical transfer of the existing engine can be completely eliminated; at the same time, the height of the test box body does not need to cover the height of the transport trolley platform, so that the height of the traditional vertical test box is reduced, the problems of poor stability and high construction cost caused by the over-high box structure are fundamentally solved, and the core breakthrough of safe transport and low-height test of the solid rocket engine is realized.

[0021] 2、The recess on the fixed bearing platform in the application is a reverse T-shaped groove, the engine enters the upper groove matching the opening size at the bottom of the test box body, and the transfer trolley platform with larger size enters the lower groove with larger size. With this design, the length of the test box body only needs to cover the engine, without covering the width of the transfer trolley platform, so that the length size of the test box is reduced, and engines of a larger size range can be adapted, improving the applicability of the test system. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and / or other features and advantages of the present application will become more apparent by describing in following embodiments, reference being made to the accompanying drawings, in which:

[0023] Figure 1 is a schematic perspective view of a temperature environment test system for solid rocket engine vertical test of the present application;

[0024] Figure 2 is a schematic perspective view of a fixed bearing platform in the present application.

[0025] In the figure: 1-test box body; 2-ground track; 3-transfer trolley platform; 4-fixed bearing platform, 41-recess, 411-upper groove, 412-lower groove; 5-test plant ground. DETAILED DESCRIPTION

[0026] The present application will be described in detail hereinafter with reference to the accompanying drawings and exemplary embodiments thereof. It is to be noted that the following detailed description of the present application is merely for illustrative purposes and is not intended to limit the present application.

[0027] It should be noted that in the context of the present application, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise" and "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] The present application aims at the safety risk caused by the overall height being too high during the vertical transfer process of the existing solid rocket engine, and the poor stability problem caused by the high structure of the test box, and provides a temperature environment test system for vertical test of solid rocket engine.

[0029] Firstly, referring to the whole Figure 1The temperature environment test system for solid rocket engine vertical test comprises a test box body 1, a ground track 2, a transfer trolley platform 3, a fixed bearing platform 4 and a sealing structure. The test box body 1 is used for sealingly containing the vertical engine to be tested, so as to perform the temperature environment test on the engine. The transfer trolley platform 3 is used for bearing the vertical engine to be tested. The ground track 2 is used for moving the transfer trolley platform 3.

[0030] The bottom of the test box body 1 is provided with a through opening, which is designed to have a size allowing the engine to pass through, so as to ensure that the engine can completely enter the test box.

[0031] The ground track 2 is laid on the ground 5 of a test plant to stably move the transfer trolley platform 3 bearing the vertical engine. The track can be arranged at both ends in the length direction of the transfer trolley platform, and rollers can be arranged on the two tracks, or rollers can be arranged at the bottom of the transfer trolley, so that the transfer trolley platform can be stably moved on the ground of the test plant without effort. This is a mature technology, and will not be described herein. The top end of the track extends to below the test box body 1, so that the transfer trolley platform can be moved to the bottom of the test box.

[0032] In combination Figure 2 The fixed bearing platform 4 is arranged on the ground track 2 to bear the test box body 1. Specifically, the fixed bearing platform 4 is fixedly arranged between the top end of the ground track 2 and the bottom of the test box body 1. The fixed bearing platform 4 is provided with a groove 41 matching the opening at the bottom of the test box body 1. The transfer trolley platform 3 can be moved along the ground track 2 to the groove 41. When the transfer trolley platform 3 enters the groove 41, the surface of the transfer trolley platform 3 constitutes the sealing bottom of the test box body 1. In this configuration, on the one hand, the transfer trolley platform no longer enters the test box as in the prior art, and only the engine itself enters the test box, so that the safety risk caused by the superposition of the height of the engine itself and the height of the transfer trolley can be eliminated. On the other hand, the height of the test box body only needs to cover the height of the engine itself, and does not need to cover the height of the transfer trolley platform, so that the height of the conventional vertical test box can be reduced.

[0033] In order to reuse the plant foundation structure and facilitate the implementation of the fixed bearing platform 4, in some embodiments, the fixed bearing platform 4 is a reinforced concrete pouring structure, but this does not limit the present application. The fixed bearing platform 4 can also be made of other materials such as steel structure. In order to ensure the stability of the structure, the cement reinforced platform needs to be reserved in front and behind and left and right, and the side wall of the test box body 1 is fixedly connected to the cement reinforced platform by bolts to form an integral bearing structure. In order to facilitate the smooth entry of the engine into the test box, the side surface of the side wall at the opening at the bottom of the test box is flush with the slot on the cement platform.

[0034] In an optional embodiment of the present application, the ground track 2 is sunken on the ground 5 of the test workshop, so that the bottom surface of the transfer trolley platform 3 is as close as possible to the ground 5 of the test workshop. This structure can further reduce the height during engine transfer and reduce the risk of test transfer.

[0035] Since the engine temperature environment test needs to ensure the airtight space as much as possible, a sealing structure is arranged at the contact interface between the test box body 1 and the fixed bearing platform 4. In the preferred embodiment, the sealing structure is also arranged at the contact interface between the fixed bearing platform 4 and the upper surface of the transfer trolley platform 3.

[0036] In particular, the sealing structure includes a sealing rubber layer coated at the contact interface between the bottom of the test box body 1 and the fixed bearing platform 4, and a sealing rubber strip arranged at the contact interface between the fixed bearing platform 4 and the upper surface of the transfer trolley platform 3. The sealing rubber strip can use high-temperature-resistant and aging-resistant materials to prolong the sealing life and improve the use reliability of the test system.

[0037] According to the present application, the groove 41 on the fixed bearing platform 4 can be a straight groove, that is, the size of the groove for the transfer trolley platform 3 to enter is the same as the size of the groove for the engine to enter. In order to allow a larger size transfer trolley platform to enter, and at the same time not to increase the length of the test box body unnecessarily to cause the volume of the test box to be wasted, the groove 41 can be designed as an inverted T-shaped groove, which includes an upper groove 411 and a lower groove 412. The profile of the upper groove 411 matches the size of the opening at the bottom of the test box body 1, which is used for the engine to enter; the size of the lower groove 412 is larger than that of the upper groove 411, which is used for the transfer trolley platform 3 to enter. With this design, the length of the test box body only needs to cover the engine, without covering the width of the transfer trolley platform, which reduces the length of the test box, and at the same time makes it possible to adapt to a larger size range of engines, improving the applicability of the test system.

[0038] Therefore, as described above, the present application cooperates through the structure of the through opening at the bottom of the test box body, the ground track and the groove of the fixed bearing platform, so that after the transfer trolley platform enters the groove, a sealed bottom of the test box is formed. This can completely eliminate the safety risk caused by the superposition of the "own height + transfer trolley height" during the vertical transfer of the existing engine; at the same time, the height of the test box body does not need to cover the height of the transfer trolley platform, which reduces the height of the traditional vertical test box, fundamentally solves the problems of poor stability and high construction cost caused by the over-high box structure, and realizes the core breakthrough of safe transfer and low-height test of solid rocket engines.

[0039] Finally, it should be noted that features mentioned and / or shown in the above description of exemplary embodiments of the application can be combined with one or more other embodiments, either in the same or in different embodiments, than those in which the features are described. The technical solutions obtained by combining the features in this way should also be regarded as included in the scope of protection of the application.

Claims

1. A temperature environment test system for a solid rocket engine vertical test, characterized by: The test box body, the ground track, the transfer trolley platform, the fixed bearing platform and the sealing structure are included. The bottom of the test box body is provided with a through opening. The ground track is laid on the ground of the test plant, and the top end of the track extends to below the test box body. The transfer trolley platform is used for bearing the vertical engine to be tested and can move along the ground track. The fixed bearing platform is fixedly arranged between the top end of the ground track and the bottom of the test box body, and a groove matching the opening of the bottom of the test box body is formed in the fixed bearing platform. The sealing structure is arranged at the contact interface between the test box body and the fixed bearing platform. When the transfer trolley platform enters the groove, the surface of the transfer trolley platform constitutes the sealed bottom of the test box body.

2. The temperature environment test system for the vertical test of a solid rocket engine according to claim 1, characterized in that: The sealing structure is also arranged at the contact interface between the fixed bearing platform and the upper surface of the transfer trolley platform.

3. The temperature environment test system for solid rocket engine vertical test according to claim 2, characterized in that: The sealing structure includes a sealing glue layer coated at the contact interface between the bottom of the test box body and the fixed bearing platform, and a sealing glue strip arranged at the contact interface between the fixed bearing platform and the upper surface of the transfer trolley platform.

4. The temperature environment test system for the vertical test of a solid rocket engine according to claim 1 or 2, characterized in that: The ground track is sunken on the ground of the test plant, so that the bottom surface height of the transfer trolley platform is as close as possible to the ground of the test plant.

5. The temperature environment test system for the vertical test of a solid rocket engine according to claim 1 or 2, characterized in that: The groove on the fixed bearing platform is a reverse T-shaped groove, which includes: An upper groove whose profile matches the size of the opening of the bottom of the test box body and is used for the engine to enter; A lower groove whose size is larger than that of the upper groove and is used for the transfer trolley platform to enter.

6. The temperature environment test system for the vertical test of a solid rocket engine according to claim 1 or 2, characterized in that: The fixed bearing platform is a reinforced concrete pouring structure.

7. The temperature environment test system for solid rocket engine vertical test according to claim 6, characterized in that: The side wall of the test box body and the fixed bearing platform are fixedly connected by bolts to form an integral bearing structure.

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