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Double-layer cylinder flow arranging type small-bore gun muzzle brake and manufacturing method thereof

A double-layer cylinder and brake technology, applied in the field of firearms and artillery, can solve the problems of muzzle shock wave hazard benefit, limited freedom, time-consuming manufacturing, etc., to reduce the flow of gunpowder gas, reduce recoil, and improve the return efficiency. Effect

Inactive Publication Date: 2019-08-30
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional casting or forging methods limit the degree of freedom in the structural design of the muzzle brake, so it is difficult to achieve the smallest possible muzzle shock wave damage benefit while ensuring the braking efficiency
In addition, traditional casting muzzle brakes often have poor performance, while forged muzzle brakes have the disadvantages of time-consuming manufacturing and high cost.

Method used

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  • Double-layer cylinder flow arranging type small-bore gun muzzle brake and manufacturing method thereof
  • Double-layer cylinder flow arranging type small-bore gun muzzle brake and manufacturing method thereof
  • Double-layer cylinder flow arranging type small-bore gun muzzle brake and manufacturing method thereof

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Experimental program
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Effect test

Embodiment Construction

[0038] combine figure 1 , figure 2 , a double-layer rectification type 3D printed small-caliber muzzle brake of the present invention is an integrated centrosymmetric structure, with an inner cylinder 6 and an outer sleeve 1 .

[0039] Taking the direction pointed by the muzzle as the positive reference, the inner surface of the bottom end 9 of the inner layer cylinder is provided with a connecting thread, which is connected with the outer surface thread of the gun barrel head to form a thread pair.

[0040] Inner layer cylinder 6 head inner diameters are not less than the barrel caliber. The circumferential wall of the head of the inner cylinder 6 is provided with multiple groups of waist-shaped side holes 7 distributed symmetrically about the center of the gun axis. Each group of waist-shaped side holes 7 is equidistantly distributed along the gun axis direction with a plurality of waist-shaped side holes with different reclining angles and areas. In every group of waist...

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Abstract

The invention belongs to the field of guns, and particularly relates to a double-layer cylinder flow arranging type small-bore gun muzzle brake and a manufacturing method thereof. The brake is of an integrated central symmetry structure and comprises an outer layer sleeve and an inner layer cylinder, the rear of the inner layer cylinder is the bottom end, the front portion of the inner layer cylinder is a cylinder body, the inner diameter of the cylinder body of the inner layer cylinder is larger than the inner diameter of the bottom end, multiple sets of kidney-shaped side holes are formed inthe cylinder body of the inner layer cylinder, the periphery of the inner layer cylinder is sleeved with the outer layer sleeve, the outer layer sleeve sequentially comprises a sleeve body, a front end face and a center bullet hole, the inner diameter of the front end face is reduced, the inner diameter of the center bullet hole is fixed and smaller than the inner diameter of the sleeve body of the outer layer sleeve, multiple sets of outer layer round holes are formed in the sleeve body of the outer layer sleeve, the sleeve body of the outer layer sleeve and the cylinder body of the inner layer cylinder are overlapped, and the inner side of the sleeve body of the outer layer sleeve and the outer side of the cylinder body of the inner layer cylinder are connected through a rib plate. Thewhole structure is formed and manufactured through the 3D printing technology. The double-layer porous structure is adopted for achieving the flow arranging effect of dispersion and dredging of gunpowder gas, and the gun muzzle low-impact wave danger benefits can be achieved.

Description

technical field [0001] The invention belongs to the technical field of firearms and artillery, in particular to a double-layer cylindrical rectification type small-caliber muzzle brake and a manufacturing method thereof. Background technique [0002] Small-caliber muzzle brakes are usually installed at the front end of the gun barrel. By controlling the flow distribution and airflow velocity of the gunpowder gas in the aftereffect period, the recoil of the gun can be reduced, and the recoil force can be provided for the gun body, thereby reducing the Rack loads and impacts on the shooting platform. [0003] Due to the limitation of casting or forging processing technology, the structure of the traditional muzzle brake used in practice is relatively simple. According to the structural form, the traditional muzzle brake structure can be divided into three types: impact type, reaction type and impact-reaction type. The diameter of the chamber of the impact muzzle brake is rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41A21/36B22F3/105B33Y10/00B33Y80/00
CPCF41A21/36B33Y10/00B33Y80/00B22F10/00B22F10/73B22F10/28B22F10/32Y02P10/25
Inventor 袁军堂余海伟汪振华
Owner NANJING UNIV OF SCI & TECH
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