A hydraulic test device for solid rocket motor nozzle thin-walled casing
An engine nozzle and inspection device technology, applied in rocket engine devices, machines/engines, jet propulsion devices, etc., to meet inspection requirements and sealing requirements, ensure strength and quality inspection requirements, and shorten the development cycle.
Active Publication Date: 2021-01-19
XIAN AEROSPACE PROPULSION TECH INST
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Problems solved by technology
[0004] In view of this, the present invention provides a hydraulic inspection device for the thin-walled casing of the solid rocket motor nozzle, which solves the targeted inspection requirements and sealing requirements for different parts of the thin-walled nozzle casing
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[0016] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0017] The invention provides a hydraulic test device for the thin-walled shell of the solid rocket motor nozzle, which is used to test the pressure at the inlet of the nozzle shell, such as figure 1 As shown, including water inlet joint 1, water inlet gasket 2, screw plug 3, gasket 4, front top cover 5, O-ring Ⅰ6, bolt 7, gasket 8, adapter flange 9, O-ring Ⅱ10, Bolt I11, spring washer 12, washer 13, nozzle housing 14, bolt II15, cover plate 16, blocking cover 17, O-ring III18.
[0018] The nozzle housing 14 is provided with a nozzle flange 9, the front top cover 5 is fixedly connected with the nozzle flange through the transfer flange 9, and the front top cover 5 and the transfer flange 9 are connected through the bolt 7 and the washer 8 Threaded connection, the front top cover 5 and the adapter flange 9 are sealed by O-ring I6; the adapter flange 9 and ...
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The invention discloses a water pressure inspection device for a nozzle thin-wall shell of a solid rocket engine. The water pressure inspection device comprises a water inlet joint, a front top cover,a rotating connecting flange, a plug cover and a pressure sensor. The front top cover is fixedly connected with a nozzle flange plate through the rotating connecting flange, the inlet of a nozzle issealed by the plug cover, and the front top cover, the rotating connecting flange, the nozzle and the plug cover are enclosed to form a water placing cavity for testing water pressure. The water inletjoint is fixedly connected with the front top cover, water enters the water placing cavity through the water inlet joint and the front top cover, and the pressure is measured through the pressure sensor installed on the front top cover for inspection. According to the water pressure inspection device for the nozzle thin-wall shell of the solid rocket engine, the specific inspection requirements and sealing requirements of different parts of the thin-wall nozzle shell are met.
Description
technical field [0001] The invention relates to the technical field of solid rocket motor nozzles, in particular to a hydraulic inspection device for the thin-walled casing of the solid rocket motor nozzle. Background technique [0002] During the working process of the solid rocket motor, the pressure of the combustion chamber can reach 10MPa. The high-temperature and high-pressure gas expands through the nozzle to generate thrust. The nozzle casing is the main load-bearing part of the nozzle. The traditional nozzle casing generally adopts a thick-walled structure with excellent design. The nozzle shell of the solution usually adopts a thin-walled structure, which can reduce the negative mass of the engine and effectively improve the overall performance of the engine, especially for tactical engines with high altitude and high index requirements. [0003] The strength design of the nozzle casing is mainly based on the finite element algorithm. In order to check the correctn...
Claims
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IPC IPC(8): F02K9/96
CPCF02K9/96
Inventor 李鑫李国才史宏斌李瑾刘雨尹术帮卢颖吕江彦孙展鹏
Owner XIAN AEROSPACE PROPULSION TECH INST