Detachable initiating explosive device cutting and separating combined structure capable of bearing large bending moment load

Abstract

The invention relates to a detachable initiating explosive device cutting and separating combined structure capable of bearing a large bending moment load, and overcomes the defects that in the prior art, under the working condition of single-point fixed connection of a large target object, the bending moment load bearing force is insufficient, stability and reliability are poor, and at present, an initiating explosive device combination structure capable of bearing a large bending moment load and fixing a target object at a single point, arranging a cable after disassembly, cutting the cable and separating the target object at the same time do not exist. The target objects such as a flight recorder and the like can be fixed at a single point, and meanwhile the recorder cable can be rapidly arranged and installed; when an aircraft works, the large bending moment load generated by a target object can be effectively borne, when the aircraft wrecks, a target object connecting cable can be cut off, the target object is thrown and separated, meanwhile, a delay mechanism is designed, and the function of the whole device has time sequence.

Description

technical field [0001] The invention belongs to the field of airborne pyrotechnics, and is used for single-point fixation of aircraft recorders and cable cutting of the recorders, and can withstand large bending moment loads and durable vibrations, and particularly relates to a detachable, large-bending Moment-loaded pyrotechnics cutting and separating composite structures. Background technique [0002] In the field of aerospace, explosive bolts, actuators, etc. are thrown and separated, and the fixed connection with the target is generally fixed at multiple points, which does not involve bending moment loads. [0003] However, with the development of technology and the actual needs of system installation, the target must be fixed at a single point. This fixing method leads to a cantilever beam structure, so that the center of gravity of the target object is not on the axis of the pyrotechnic product during work, that is, a large bending moment load will appear. According ...

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Problems solved by technology

[0006] The technical problem solved by the present invention is: in order to solve the defects of insufficient bending moment load bearing strength, poor stability and reliability under the single-point fixed connection condition of large objects in the prior art, at the same time, there has not yet appeared a Insufficient in the combination structure of pyrotechnics with a single point of large bending moment load to fix the target, detachable and arranged cables, cutting cables and separating the target, the present invention designs a detachable pyrotechnic cutting device that can carry large bending moment loads separate composite structure

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