Mortar shell bullet mechanical trigger fuse with penetration time self-adaptive function

Abstract

The invention discloses a mortar shell bullet mechanical trigger fuse with a penetration time self-adaptive function. The mortar shell bullet mechanical trigger fuse comprises a body, a pneumatic insurance mechanism/trigger ignition mechanism, an inertia ignition mechanism, an explosive-proof mechanism, a recoil insurance mechanism, an anti-recovery mechanism of the recoil insurance mechanism, a delay arming mechanism, a setting mechanism, a detonating tube, a booster tube and a bottom screw. Two insurances of the fuse respectively depend on an inner ballistic environment and an outer ballistic environment during launching to be released, and the two insurances of an explosive-proof piece are both in an insurance state at a filling stage and before getting out of a gun muzzle, so that thesafety is good. A fault insurance characteristic is possessed, in case that the recoil insurance mechanism is accidentally relieved, the fuse can be automatically switched into a fault insurance state, and safety in a credible service processing environment is guaranteed; a booster tube adopts an energy-gathered charging structure, so that the detonating capacity is high; the fuse has the characteristics of redundant ignition and redundant fire insulation, is high in reliability, and can ensure the treatment safety of unexploded ammunition explosives; and the fuse is simple in structure, is easy to process and low in cost.

Description

technical field [0001] The invention belongs to mortar shell fuze technology, in particular to a mortar shell warhead mechanical trigger fuze with penetration time self-adaptive function. Background technique [0002] Traditional mortar shells are basically stabilized by tail fins. They do not rotate or spin slightly during the launching phase and the ballistic flight phase. The equipped fuze is used to release the safety when launching. There is only a ballistic environment in the recoil. In order to meet the requirements of fuze redundancy insurance, in addition to the recoil insurance, it is often necessary to add an insurance that can be released manually (such as pulling out the pin or removing the cap). However, the manual release of the insurance must be manually released before the projectile is loaded, that is, the fuze is already in a single insurance state during the loading stage and the in-bore launch stage, which has potential safety hazards. Existing mortar s...

AI Technical Summary

Problems solved by technology

However, the manual release of the insurance must be manually released before the projectile is loaded, that is, the fuze is already in a single insurance state during the loading stage and the in-bore launch stage, which has potential safety hazards

Existing mortar shell fuzes mainly use delayed pyrotechnic devices such as delayed detonators or delay tubes to achieve delayed firing after triggering, and the delayed time is basically fixed and cannot be adjusted; and the fuze has a complex structure, poor manufacturability, and high cost

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