Abstract
In order to reasonably reduce the perceptible recoil of firearms, and design a recoil reduction device that can be commonly used in automatic rifles, semi-automatic rifles, and machine guns, a balancing mechanism for recoil reduction technology was proposed in this paper. With the perceptible recoil generated by the impact from automat to the balance mechanism as the objective function, the parametric analysis of the mass of the balance weight and the spring stiffness of the balance mechanism was conducted. The analysis showed that the influence of the mass of the balance weight on the reduction of the perceptible recoil of the balance mechanism is obviously greater than that of the spring stiffness of the balance mechanism within the allowable ranges of the two factors. The research results provide a reference for gun recoil reduction technology.
Highlights
The problem of recoil of firearms has always been a hot issue in the design of firearms
Recoil force refers to the impact force when the bolt carrier hits the gun tail, and the perceptible recoil refers to the output pressure of the pressure sensor contacting with the gun butt during the shooting process of the gun
In order to avoid the bolt carrier, balance block and gun tail contacting and squeezing each other in turn, in this case, it is equivalent to the bolt carrier and the balance weight hitting the tail of the gun at the same time
Summary
The problem of recoil of firearms has always been a hot issue in the design of firearms. Often because of the high stiffness of the buffer itself, the force of the bolt assembly impacting the buffer can still be transmitted to the shooter through the tail and butt of the gun, forming a significant sensible recoil. 1) It still cannot avoid the direct collision between the bolt carrier and the gun tail; 2) The use of "gear", a more precise mechanical device in firearms reduces the reliability of firearms; 3) The balance mechanism can only be arranged above the bolt carrier. A new type of internal collision balance mechanism is proposed to improve the above three shortcomings
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