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A small caliber bullet stock that fires heavy metal long rod bullets to super high speed

A long-rod projectile and ultra-high-speed technology, which is applied in the field of ultra-high-speed impact experiments, can solve the problems of inability to launch high-area-density heavy metal long-rod projectiles, difficult processing, and small long diameter, so as to reduce the difficulty and cost of experiments, and reduce the cost of projectiles. The structure of the support is simple and the effect of easy processing

Active Publication Date: 2021-08-31
NORTHWEST INST OF NUCLEAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In addition, the light gas guns used for ultra-high-speed launching have a small caliber (the caliber can be less than 10mm), which means that the complex saddle-shaped bullet rest structure commonly used in large-caliber artillery (the caliber is greater than 30mm) for launching heavy metal long rod bullets, if directly reduced and Applied to small-caliber guns, the processing is extremely difficult
[0009] Conventional small-caliber light gas guns have a cup-shaped bullet holder. Since the design and precision machining of the small-caliber bullet holder cannot be well solved, most of the current small-caliber light gas guns fire low-area density projectiles, that is, the density is relatively high. Projectiles with a low profile and a small long-diameter ratio cannot launch high-density heavy metal long-stem projectiles
Although the small-caliber light gas gun has the advantage of high speed, it can only be used in the fields of space debris protection and fragment protection, and it is difficult to play a greater role in the ultra-high-speed impact damage effect of heavy metal long-rod projectiles

Method used

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  • A small caliber bullet stock that fires heavy metal long rod bullets to super high speed

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A small-caliber bullet holder for launching heavy metal long-rod bullets to ultra-high speed, which includes: a bottom bracket part 1, a body wrapping part 2, a body support ring 5, and a frustum-shaped reinforcing protrusion 6;

[0036] Gun barrel internal diameter 7mm, projectile body 10 is long 23.2mm, the tungsten alloy rod projectile of diameter 2.32mm, and projectile body quality 1.72g.

[0037] Bottom support part 1 is long 12mm, and diameter is smaller than gun barrel inner diameter 0.01-0.03mm. There is an annular boss 3 with a thickness of about 1 mm in the axial direction at the rear of the bottom bracket 1. The outer diameter of the ring boss 3 on the bottom bracket 1 is 0.2-0.3 mm larger than the inner diameter of the gun barrel. To prevent the bullet support from entering the barrel due to the pulling force generated by the vacuum of the barrel, the front part of the bottom support is provided with a threaded hole for installing the frustum-shaped reinforc...

Embodiment 2

[0045]A small-caliber bullet holder for launching heavy metal long-rod bullets to ultra-high speed, which includes: a bottom bracket part 1, a body wrapping part 2, a body support ring 5, and a frustum-shaped reinforcing protrusion 6;

[0046] Gun barrel internal diameter 10mm, projectile body 10 is long 35mm, the tungsten alloy rod projectile of diameter 3.5mm, and projectile body quality 5.9g.

[0047] Bottom support part 1 is long 20mm, and diameter is smaller than gun barrel inner diameter 0.01-0.03mm. There is an annular boss 3 with a thickness of about 1 mm in the axial direction at the rear of the bottom bracket 1. The outer diameter of the ring boss 3 on the bottom bracket 1 is 0.2-0.3 mm larger than the inner diameter of the gun barrel. To prevent the bullet support from entering the gun barrel due to the pulling force generated by the vacuum of the barrel, the front part of the bottom support is provided with a threaded hole for installing the frustum-shaped reinforc...

Embodiment 3

[0055] A small-caliber bullet holder for launching heavy metal long-rod bullets to ultra-high speed, which includes: a bottom bracket part 1, a body wrapping part 2, a body support ring 5, and a frustum-shaped reinforcing protrusion 6;

[0056] Gun barrel internal diameter 10mm, projectile body 10 is long 35mm, the high-strength steel long rod projectile of diameter 3.5mm, projectile body quality 5.9g.

[0057] Bottom support portion 1 is long 15mm, and diameter is 0.01-0.03mm smaller than gun barrel inner diameter. There is an annular boss 3 with a thickness of about 1 mm in the axial direction at the rear of the bottom bracket 1. The outer diameter of the ring boss 3 on the bottom bracket 1 is 0.2-0.3 mm larger than the inner diameter of the gun barrel. To prevent the bullet support from entering the gun barrel due to the pulling force generated by the vacuum of the barrel, the front part of the bottom support is provided with a threaded hole for installing the frustum-shape...

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Abstract

The invention relates to a small-caliber bullet carrier for launching a heavy metal long-rod bullet to an ultra-high speed. The elastic support includes a bottom support part, a wrapped elastic body part, a support ring of the elastic body and a truncated cone-shaped reinforcing protrusion; an annular protrusion is arranged on the outer surface of one end of the bottom support part, and the other end is fixedly connected with the wrapped elastic body part; The body part is provided with a projectile accommodating cavity along its axis, a projectile support ring is arranged in the head of the projectile accommodating cavity, and the tail of the projectile receiving cavity is provided with a truncated cone-shaped reinforcing protrusion; the large diameter end of the truncated cone-shaped reinforcing protrusion is provided Clearly fit with the projectile accommodating cavity; there is an interference fit between the part where the annular protrusion is arranged on the bottom support part and the gun barrel, and the rest of the bottom support part and the gun barrel are clearance fit; There is a clearance fit between the barrels. The bomb holder can load a gram-level heavy metal long-rod projectile to an ultra-high speed, and has a simple structure and is easy to process, and can reduce experimental difficulty and experimental cost.

Description

technical field [0001] The invention belongs to the technical field of ultra-high-speed impact experiments, in particular to a small-caliber bullet holder for launching heavy metal long-rod bullets at ultra-high speed. Background technique [0002] With the rapid development of ultra-high-speed platforms in recent years, the field of ultra-high-speed impact effects has received extensive attention. Heavy metal long-rod projectiles have become the key research projectiles in the field of ultra-high-speed impact effects because of their high axial damage. Heavy metals generally refer to tungsten alloys or high-strength steels, and long-rod projectiles generally refer to rod-type projectiles with an aspect ratio greater than 10. The ultra-high speed here generally refers to the speed greater than 1.5km / s. It is a commonly used experimental research mode in this field to use the small-caliber two-stage light gas gun experimental platform to launch the scaled heavy metal long-r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/08
CPCG01M7/08
Inventor 钱秉文李运良周刚朱玉荣张向荣谭书舜李进尹立新陈春林张子栋
Owner NORTHWEST INST OF NUCLEAR TECH