An Inertia-Based Hot-melt Alloy Constrained Isolation Mechanism

Abstract

The invention discloses a hot-melting alloy constraining type isolating mechanism based on inertia, and belongs to the technical field of fuse safety mechanisms. The isolating mechanism comprises a body and a rotor, wherein a rotor hole is formed in the center of the body, and the rotor is coaxially embedded into the rotor hole in a sleeved mode and can rotate relative to the body; the rotor and the body are provided with corresponding holes used for containing a hot-melting alloy pin puller, an inertia safety part, a fire propagation part and a detonation propagation part; the isolating mechanism achieves a large isolating relieving rotation angle by optimizing the hole position relation, and through arrangement of a multi-stage safety mechanism, the isolating mechanism in a safe state and a due-out state can be locked at the corresponding positions. According to the hot-melting alloy constraining type isolating mechanism based on the inertia, on one hand, the part arranging mode of the isolating mechanism is optimized, the space size of the isolating mechanism is decreased, and the applicability of the isolating mechanism is improved; on the other hand, the safety of the isolating mechanism can be effectively improved through two-stage safety in the safe state, detonation sequence alignment can be effectively guaranteed through two-stage locking in the due-out state, and therefore the detonation efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of fuze insurance mechanisms, and in particular relates to an inertia-based hot-melt alloy constrained isolation mechanism. Background technique [0002] Explosives are a general term for disposable components and devices that contain gunpowder or explosives, which burn or explode after being stimulated by the outside world to ignite gunpowder, detonate explosives, or perform mechanical work. An isolation mechanism is usually set in the pyrotechnics, and its function is to isolate the sensitive pyrotechnic elements in the explosion sequence from the next-level pyrotechnic elements at ordinary times, so as to ensure that the fuze does not ignite when the pyrotechnics accidentally act in advance, thereby avoiding Ammunition exploded prematurely, endangering the safety of personnel and equipment. [0003] The safety of the fuze involves the whole life cycle of the fuze, such as demonstration, design, manufactu...

AI Technical Summary

Problems solved by technology

First of all, when the safety of the isolation mechanism is released and the movement is in place, the isolation mechanism does not have a locking function. In the vibration environment, it is easy to cause the isolation mechanism to be misplaced, and eventually lead to incomplete alignment of the explosion sequence; secondly, the two-stage safety of the horizontal rotor type isolation mechanism If the components are misplaced, the size of the mechanism will be larger and the use of space will be unreasonable; again, the horizontal rotor isolation mechanism usually does not effectively use the environmental information on the bomb (such as flight overload, centrifugal force, aerodynamic heat, etc.), and the two-stage insurance The drive needs to consume fuze or bomb power supply, resulting in waste of energy and low safety

The above-mentioned defects limit the application of the horizontal rotor type isolation mechanism to a certain extent, have certain influence on the safety and practicability of the isolation mechanism, and cannot fully satisfy the safe use of the fuze.

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