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Spinning projectile fuze explosion-proof mechanism with safety recovery and insensitive characteristics

A technology of sensitive features and fuzes, applied in the direction of fuzes, offensive equipment, weapon accessories, etc., can solve problems such as complexity and large fuze space, and achieve the effect of small space volume, low cost, and compact structure

Active Publication Date: 2021-09-17
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although the explosion-proof safety between the detonating tube and the detonating tube is considered in the design of the rotary bomb fuze, the mechanism for realizing the explosion-proof safety is relatively complicated and takes up a large space inside the fuze

Method used

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  • Spinning projectile fuze explosion-proof mechanism with safety recovery and insensitive characteristics
  • Spinning projectile fuze explosion-proof mechanism with safety recovery and insensitive characteristics
  • Spinning projectile fuze explosion-proof mechanism with safety recovery and insensitive characteristics

Examples

Experimental program
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Effect test

Embodiment 1

[0026] figure 2 A schematic diagram of the structure when the present invention is installed as an independent module is given. At this time, the anti-explosion mechanism of the rotary bomb fuze with recovery safety and insensitivity features is closely matched and arranged in the inner shell 11, the supporting bolt 6 is riveted on the inner shell 11, the outer shell 12 is in the shape of a barrel, and a fire transmission hole is opened in the center of the bottom surface , the inner shell 11 provided with the anti-explosion mechanism of the rotary bomb fuze is arranged in the outer shell 12 through tight fit. Normally, the first spacer 4 and the second spacer 5 are pressed against by the resistance of the preload spring 7 in the spacer seat 8, and engage up and down in the second chamber of the spacer seat 8. At this time, the explosion-proof mechanism is in the In the explosion-proof state, even if the detonator 2 above it is accidentally fired due to insensitive factors s...

Embodiment 2

[0028] image 3 A schematic diagram of the structure when the invention is embedded in the booster tube for installation is given. When the anti-explosion mechanism of the rotary bomb fuze was embedded in the detonator shell of the detonator tube 9, its bottom surface was in contact with the detonator charge surface, and the support bolt 6 was riveted on the detonator shell. Normally, the first spacer 4 and the second spacer 5 are pressed against by the resistance of the preload spring 7 in the spacer seat 8, and engage up and down in the second chamber of the spacer seat 8. At this time, the explosion-proof mechanism is in the In the explosion-proof state, even if the detonator 2 above it is accidentally fired due to insensitive factors such as fire accidental baking, gunshots, fragment strikes, jet impact, etc., the detonator 9 below it will not be detonated. As the projectile is fired in the bore, the interaction of the receiving belt with the rifling of the gun initiates ...

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Abstract

The invention discloses a spinning projectile fuze explosion-proof mechanism with safety recovery and insensitive characteristics. The spinning projectile fuze explosion-proof mechanism comprises a partition plate cover, a partition plate seat, a first partition block, a second partition block, two pre-pressing springs and two supporting bolts. The spinning projectile fuze explosion-proof mechanism is arranged in a fuze body and used for blocking a detonating tube and a booster tube at the tail of the fuze body. At ordinary times, the first partition block and the second partition block are meshed with each other under the resistance action of the pre-pressing springs to prevent the detonating tube from detonating the booster tube. When a projectile rotates, the two meshed partition blocks withdraw outwards in the radial direction under the action of centrifugal force to leave a central explosion propagation channel, so that the detonating tube can detonate the booster tube. Under the condition of accidental misfire of the fuze, after the rotation of the projectile is stopped, the explosion-proof mechanism resumes, so that the explosive safety treatment requirement of unexploded ammunition is met. According to the spinning projectile fuze explosion-proof mechanism, structural modularization can be achieved, reliability is high, the structure is compact, and cost is low.

Description

technical field [0001] The invention belongs to fuze technology, and in particular relates to an anti-explosion mechanism of a rotary bomb fuze with recovery insurance and insensitivity characteristics. Background technique [0002] With the development of modern warfare, higher requirements are put forward for fuze performance. According to the GJB 373B-2019 "Fuze Safety Design Guidelines" standard, the fuze should have explosive disposal characteristics to ensure the safe disposal of ammunition explosives. Not only that, in order to ensure sufficient safety under accidental stimuli such as bullet shooting, fragment strikes and jet impacts, and fire, modern fuzes should also have insensitivity properties. At present, although the explosion-proof safety between the detonator and the detonator is considered in the design of the rotary bomb fuze, the mechanism for realizing the explosion-proof safety is relatively complicated and takes up a large space inside the fuze. Cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42C15/26F42C15/34
CPCF42C15/26F42C15/34
Inventor 王雨时肖寅
Owner NANJING UNIV OF SCI & TECH
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