Medium-and-small caliber machine gun bullet conveying mechanism

Abstract

The invention provides a medium-and-small caliber machine gun bullet conveying mechanism. The medium-and-small caliber machine gun bullet conveying mechanism comprises a machine frame, a connecting base, a bullet receiver base, a shifting lever, a shifting fork and a small lever structure. An inverted-L-shaped guide groove is formed in the side wall of the machine frame, and a bullet conveying working face is arranged in the guide groove. The shifting lever is arranged on the side face of the connecting base in a rotatable mode. The shifting fork is in an L shape and is arranged on the top face of the connecting base in a rotatable mode. One end of the shifting fork is hinged to the upper end of the shifting lever, and the other end of the shifting fork is provided with a kidney-shaped groove. The small lever structure comprises a lever, an outer bullet shifting sliding plate and an inner bullet shifting sliding plate. The lever is arranged on the bullet receiver base in a rotatable mode. An idler wheel is arranged at one end of the lever in a downward mode and is further clamped into the kidney-shaped groove of the shifting fork, and the other end of the lever is hinged to the inner bullet shifting sliding plate. The middle part of the lever is hinged to the outer bullet shifting sliding plate. According to the medium-and-small caliber machine gun bullet conveying mechanism, the machine frame drives the shifting lever, the shifting lever drives the shifting fork, and the shifting fork drives the lever so as to drive the inner bullet shifting sliding plate and the outer bullet shifting sliding plate to achieve double-stroke bullet conveyance. The medium-and-small caliber machine gun bullet conveying mechanism is compact in structure, stable to operate and capable of effectively improving machine gun firing accuracy.

Description

technical field [0001] The invention relates to a bomb feeding device for firearms, in particular to a bomb feeding mechanism for medium and small caliber machine guns. Background technique [0002] There are two types of bomb delivery methods for machine guns: one-way delivery and two-way delivery. One-way feeding means completing one feeding action during recoil, or completing one feeding action during re-entry; two-way feeding means completing half of the feeding action during recoil, and completing the other half of the feeding action during re-entry. The small and medium caliber machine gun feeding mechanism of the chain feed is the core component of the machine gun. The design requirements of the bomb feeding mechanism are generally stable and reliable work, high transmission efficiency, little impact on the shooting accuracy of the machine gun, and convenient use and maintenance. [0003] At present, the existing small and medium-caliber machine guns at home and abr...

AI Technical Summary

Problems solved by technology

The disadvantage is that the large lever has an alternating lateral force on the automatic machine during the feeding process, which indirectly affects the shooting accuracy of the machine gun

Secondly, the cam lever mechanism occupies more longitudinal space in the length direction of the machine gun, which is not conducive to shortening the length of the weapon.

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