摘要：Artillery backlash angle is an important factor in firing accuracy. It is necessary to study the law of the change of the backlash angle in order to master the dynamic error of artillery rotating parts in the high and low direction. The vibration equation of backlash angle was deduced based on the force analysis of the rotating parts. The structure and physical parameters of artillery were selected, and the influence of different factors on the backlash angle was analyzed. The case analysis shows that the torsional rigidity of the high and low machine should be designed within an appropriate range according to the natural frequency of the vibration. The structure parameters of the gun have important influence on the vibration characteristics of the rotating parts. In the design of the gun, the center of the trunnion and the center of gravity should be located on the same side of the barrel axis. The research work provides a reference for the further study of the control of the backlash angle.
