Transmission chain of gun servo system has backlash, it is one of the important factors that affect dynamics performance and stable precision of gun system.

火炮伺服系统传动链存在传动齿隙，齿隙是影响火炮伺服系统动态性能和稳态精度的重要因素之一。

In this paper, in the full analysed the merits and synthesized the medium-caliber gun feeding system at home and abroad, then we proposed a shell-feeding system with untreaded chain style.

论文在综合分析了国内外大中口径舰炮供弹系统机构的基础上，提出了中口径舰炮折回链式的供弹系统设计方案。