Gunpowder actuator unlocking device

Abstract

The invention relates to a gunpowder actuator unlocking device and belongs to the technical field of gunpowder actuators in a guided missile mechanism. The gunpowder actuator unlocking device comprises an actuator casing and a loading piston connected with the rear end of the actuator casing, wherein the front end of the actuator casing is connected with an electric ignition tube through a partition plate. A grain is arranged in the actuator casing and wrapped with a grain wrapper. The end face of the loading piston is connected with an unlocking piston through a spring, and a limiting ball is located between the outer edge of the loading piston and the inner edge of the actuator casing. A region between the unlocking piston and the grain wrapper is a power cavity, and an air source channel is located between the grain wrapper and the inner edge of the actuator casing. The sectional area of the end face of the unlocking piston is smaller than that of the end face of a middle section of the unlocking piston, and the side edge of the unlocking piston is provided with an unlocking piston groove. The unlocking device built in the gunpowder actuator unlocking device is simple in principle and reliable in unlocking. A function of increasing initial locking force and decreasing unlocking force is achieved. The gunpowder actuator unlocking device can be applied to various guided missile folding mechanisms.

Description

technical field [0001] The invention relates to a gunpowder actuator unlocking device, which belongs to the technical field of gunpowder actuators in missile mechanisms. Background technique [0002] The missile folding mechanism mostly uses a gunpowder actuator as the power source of the mechanism. Generally, the gunpowder actuator is required to have an initial locking function to ensure that the folding mechanism is in the initial locking state. When the unfolding command is received, the initial lock is unlocked and the gunpowder is activated. The output of the device drives the load to drive the movement of the folding mechanism. Since the lifting and transportation loads bear a large external load, the initial lock is required to have a large initial locking load; at the same time, when the mechanism is unfolded, because the external load of the folding mechanism is small and sensitive to impact loads (for example: antenna), The output driving load is required to be s...

AI Technical Summary

Problems solved by technology

[0003] At present, the initial lock methods of gunpowder actuators are: shear pin / piece type, snap ring type, pin puller type, shear pin / piece type, snap ring type, the unlocking force is greater than the locking force, and the output load changes suddenly when unlocking ;The pin puller type initial lock requires an additional actuating chamber and an ignition device, which has problems such as large volume and high power consumption

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