A Memory Alloy Inertia Composite Rotor Type Isolation Mechanism

Abstract

The invention discloses an inertial memory alloy composite rotor-type isolation mechanism, and belongs to the technical field of fuse safety mechanisms. The isolation mechanism comprises a body provided with a rotor hole, and a rotor nested in the rotor hole, wherein holes for accommodating a memory alloy pin pusher, an inertia safety component, a lock pin, a change-over switch, a fire propagation component, an explosion propagation component and other components are formed in the rotor and the body; and the isolation mechanism has a large isolation termination rotation angle through optimization for the structure components and optimization for the positions of the holes, the state of the isolation mechanism can be accurately identified and fed back, and locking for the isolation mechanism in each state in the state is ensured. According to the isolation mechanism disclosed by the invention, through the abovementioned arrangement, on one hand, the safety of the mechanism in a safe state is guaranteed, and the alignment of a detonation sequence in an arming state is ensured, so that the detonation efficiency is greatly increased; and on the other hand, the state of the isolation mechanism can be effectively identified and fed back to a control system by the change-over switch and other components, so that the safety of the isolation mechanism is further improved, and the detonation efficiency is further increased.

Description

Technical field [0001] The invention belongs to the technical field of fuze insurance mechanisms, and specifically relates to a memory alloy inertial composite rotor type isolation mechanism. Background technique [0002] Pyrotechnics is a general term for disposable components and devices that are loaded with gunpowder or explosives, which burn or explode after being stimulated by the outside to ignite gunpowder, detonate explosives or perform mechanical work. An isolation mechanism is usually set in the pyrotechnics, its function is to isolate the sensitive pyrotechnic element in the transmission sequence from the next-level pyrotechnic element at ordinary times, to ensure that the fuze does not ignite when the pyrotechnic product accidentally acts in advance, so as to avoid The ammunition exploded early, endangering the safety of personnel and equipment. [0003] The safety of the fuze involves the entire life cycle of the fuze's demonstration, design, manufacturing, inspection...

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 space utilization will be unreasonable; thirdly, the existing horizontal rotor type isolation mechanism usually cannot accurately identify and display the state of the isolation mechanism, which is not conducive to the operator to judge the state of the isolation mechanism , indirect security risks

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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