Linear separation structure suitable for decoupling of large pressure load and small pull load

Abstract

The invention discloses a linear separation structure suitable for decoupling of large pressure load and small tension load. A frame is connected to the upper portion of the inner surface of a separation plate through threads, a protection cover is connected to the lower portion of the inner surface of the separation plate through the threads, a through groove is machined in the inner side of the protection cover, a flat pipe is placed in the groove, after the flat pipe is placed in place, the flat pipe makes contact with the inner surface of the separation plate, a lead sheath explosive cable and a filler are integrally formed in an extrusion molding mode, the formed whole is placed in the flat pipe, detonating connectors are installed at the two ends of the flat pipe, a weakening groove is formed in the separation plate and is positioned in the middle of a contact area of the separation plate and the flat pipe, the lower end face of the protection cover and the upper end face of the frame are simultaneously located on the inner side or the outer side of the separation plate, the separation plate bears tensile load, and the protection cover bears compression load. Through the structural design, different parts of the separation device bear loads in different forms, the structural bearing efficiency is improved, and meanwhile the separation reliability of the device is ensured.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and in particular relates to a linear separation structure suitable for the decoupling of large pressure loads and small tension loads, which is used for the connection and separation between stages of launch vehicles and between rockets and payloads in the field of aerospace. Among them, large compressive load and small tensile load refer to that the compressive load (compressive load) is greater than the tensile load (tensile load). Background technique [0002] The inter-stages of the launch vehicle and between the launch vehicle and the payload are connected through a separation device, and the separation function is realized at a specified time, which is an important link in the whole rocket separation system. With the increase of payload dimensions and load mass of launch vehicles, satellites, and space stations, the number of point separation devices has greatly increased, which brings ...

AI Technical Summary

Problems solved by technology

During the flight of the launch vehicle body structure, the pressure load is particularly large and the tension load is relatively small. If only the groove plate (separation plate) bears the tension and compression load, the thickness of the groove plate will be too large, and the designed The utilization efficiency of the structure is not high, and it brings a series of problems such as excessive separation of drugs

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