In order to increase the automatic mechanism firing rate, an auxiliary belt feed wheel was added to the feeding mechanism. But the real rate of fire was not as high as expected. To find out the reasons, loads applied on the ammunition link of an antiaircraft gun during firing were calculated and the belt feed wheel and auxiliary one＇s angular displacements were tested . On the basis of these jobs, the change dis- ciplinarian of belt feed wheel and auxiliary one＇s angular displacements angular and linear velocities etc. were given through analysis and comparison of the experiment data. Then, the change trend of firing rate along with the belt feed wheel and auxiliary one＇s center＇s linear velocity dispersion was obtained. One reason of firing rate reduced was fingered out. The antiaircraft gun＇s real firing rate was up to par by tak- ing some measures.
Gun Launch ＆ Control Journal
rate of fire belt feed wheel