Solid rocket erecting system and erecting method

Abstract

The invention relates to a solid rocket erecting system and an erecting method. The erecting system comprises a constant-displacement pump, a shut-off valve, a reversing valve, a mechanical-hydraulicthrottling valve and an erecting hydraulic cylinder, wherein the mechanical-hydraulic throttling valve is provided with a bypass throttling port and an induction rod; the constant-displacement pump issequentially connected with the shut-off valve and an oil inlet P of the reversing valve through a first pipeline; a working oil port A of the reversing valve is connected with a front cavity of theerecting hydraulic cylinder through a second pipeline, a working oil port B of the reversing valve is sequentially connected with the mechanical-hydraulic throttling valve and a back cavity of the erecting hydraulic cylinder through a third pipeline, and an oil return port T of the reversing valve is connected with an oil tank through a fourth pipeline; and a piston rod of the erecting hydraulic cylinder is hinged to the front half part of a rocket launching tube, and the induction rod of the mechanical-hydraulic throttling valve is connected with a cam mechanism which is arranged at the hingejoint position of the rear half part of the rocket launching tube. The erecting system has the advantages of being simple in structure, easy to control, safe, reliable and high in erecting speed. Theerecting method has the advantages of being reasonable in logic, easy to control, high in efficiency, high in reliability and high in safety.

Description

technical field [0001] The invention relates to a hydraulic system, in particular to a solid rocket erecting system and a method for solid rocket erection using the erecting system. Background technique [0002] In the field of aerospace, for large-tonnage solid rockets, an erection system consisting of proportional valves (or digital valves / servo valves) and variable pumps is usually used. Different erection speeds can be realized by the size of the pump and the swash plate swing angle of the variable pump. Although this erection method can meet the erection requirements of large-tonnage solid rockets, the system forming the erection hydraulic circuit is relatively complicated, and the components such as proportional valves and variable pumps have precise structures, and have high requirements for oil cleanliness and electronic control. The difficulty of control and realization is increased, and the reliability of the erecting system and the safety of the erecting process ...

AI Technical Summary

Problems solved by technology

Although this erection method can meet the erection requirements of large-tonnage solid rockets, the system forming the erection hydraulic circuit is relatively complicated, and the components such as proportional valves and variable pumps have precise structures, and have high requirements for oil cleanliness and electronic control. It increases the difficulty of control and implementation, which affects the reliability of the erecting system and the safety of the erecting process

At present, large-tonnage solid rockets have entered the stage of remote unattended zero-window launch technology, which puts forward higher requirements for the reliability and safety of the erection process, but none of the existing erection systems can meet its use requirements

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