A shaping-free forming method for the end face of a solid rocket motor embedded with silver wire
A solid rocket and engine technology, applied in rocket engine devices, machines/engines, mechanical equipment, etc., can solve the problems of difficult to guarantee accuracy, difficult molding, safety, etc., to reduce labor intensity, good universality, and shorten the process. effect of cycles
Active Publication Date: 2021-11-16
内蒙合成化工研究所
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Problems solved by technology
[0004] The invention provides a shaping-free forming method for the end face of a solid rocket motor embedded with silver wire, which solves the problems of difficulty in forming cone dimples or grooves in the existing end face profile and difficulty in ensuring accuracy, and at the same time solves the safety problems existing in manual shaping
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[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0024] Such as figure 1 As shown, the plastic-free gland 5 is designed to be nested with the silver wire positioning plate 2 to realize the molding of the medicine surface. After the propellant is poured, the plastic-free gland 5 is pressed into the end surface, and the plastic-free tooling is pressed in. Use the positioning screw 6 to locate the free-shaping gland 5 in the radial and axial directions. The positioning screw 6 performs radial positioning through the matching outer diameter of the plastic-free gland 5 and the cylinder 1, and performs axial positioning through the lock nut 4. ;
[0025] Such as figure 2 As shown, the silver wire positioning point is set on the silver wire positioning disc 2, and the silver wire fixing head is arranged on the silver wire positioning point, and the silver wire 3 is fastened by the silve...
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The invention relates to a shaping-free molding method for the end face of a grain column embedded with silver wire of a solid rocket motor. ) Assembly of the set screw, 5) Demoulding of the forming structure and 6) cleaning of the end face. The invention provides a shaping-free shaping method for the end face of the silver-embedded grain column of a solid rocket motor, which solves the problems of difficulty in forming a cone or groove in the existing end face profile and difficult to guarantee precision, and simultaneously solves the safety problem existing in manual shaping. . The invention can be applied not only to the shaping-free molding of the end face of the small-diameter solid rocket motor with silver wire inlaid with a simple structure, but also to the shaping-free shaping of the silver-wired grain pillar of the complex structure of the large-diameter solid rocket motor.
Description
technical field [0001] The invention relates to the field of solid rocket motor manufacturing, in particular to a shaping-free forming method for the end face of a solid rocket motor embedded with silver wires. Background technique [0002] At present, in order to meet the requirements of the working pressure and thrust of the engine, many solid rocket motors that use end grain combustion need to use propellants with a higher burning rate. Embedding silver wire in the grain can greatly increase the burning rate, but the burning speed of the grain embedded with silver wire is higher, and in order to increase the initial burning surface, the end face is often designed with complex structures such as cone dimples or grooves. Forming is difficult. And the shaping-free forming method of the end face of the silver-embedded grain is an effective means and a key technical approach for forming the complex end face of the solid rocket motor. The existing mechanical or manual shaping...
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IPC IPC(8): F02K9/10
Inventor 李枫曹光明倪志辉胡元鑫张南军李亮
Owner 内蒙合成化工研究所