A resistance self-adaptive elastic belt device

Abstract

The invention belongs to the field of internal ballistic launch, and in particular relates to a resistance self-adaptive elastic belt device. Including the main body of the elastic belt, the elastic belt bottom support I and the elastic belt bottom support II, the main body of the elastic belt is cylindrical as a whole, and the two ends of the inner surface of the elastic belt main body are respectively provided with a "T"-shaped annular groove in cross section, and the middle part is provided with a The cross-section is a semicircular annular groove; the structure and size of the elastic belt bottom bracket I and the elastic belt bottom bracket II are the same. The "T" annular groove of the main body is clearance fit, and the outer surfaces of the elastic belt bottom bracket I and the elastic belt bottom bracket II are on the same plane as the outer surface of the elastic belt main body; the elastic belt main body, the elastic belt bottom bracket I and the elastic belt bottom bracket II and the outer surface of the belt groove of the bullet jointly form a semi-cylindrical closed cavity. By changing the structure of the belt device, the invention realizes the system airtight performance and the full combustion of the charge when the projectile embedded in the barrel in advance is launched, and directly improves the launch performance of the entire launch system.

Description

technical field [0001] The invention belongs to the field of internal ballistic launch, and in particular relates to a resistance self-adaptive elastic belt device. Background technique [0002] During the internal ballistic launch process, for projectiles that need to be embedded in the barrel in advance, the matching relationship between the belt and the barrel is generally a clearance fit. This situation will bring negative effects in two aspects: one is that the projectile movement resistance caused by the belt is low, which will lead to a relatively large acceleration of the projectile’s motion at the initial stage, which will lead to insufficient combustion of the charge in the chamber; the second is the belt The fitting effect between the barrel and the barrel is not good, which in turn affects the air-holding performance of the elastic belt. The conventional elastic belt embedded in the barrel in advance cannot solve the negative effects of these two aspects. Cont...

AI Technical Summary

Problems solved by technology

This situation will bring negative effects in two aspects: one is that the projectile movement resistance caused by the belt is low, which will lead to a relatively large acceleration of the projectile’s motion at the initial stage, which will lead to insufficient combustion of the charge in the chamber; the second is the belt The fitting effect between the barrel and the barrel is not good, which in turn affects the air-holding performance of the elastic belt

The conventional elastic belt embedded in the barrel in advance cannot solve the negative effects of these two aspects

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