【摘要】 枪支射击时，需要对其射弹数量进行统计，但是现有的统计方式大多还停留在手工阶段，因此需要一种能自动计数的枪用计数器；使用计数器完成枪支射击次数统计，既能帮助射手评估枪支的剩余寿命，也能防止射手私自截留子弹，对提高武器保养质量、提升靶场枪弹智能管理效率具有重要价值；结合自动步枪的结构特点以及枪械射击时有两次较大的向后冲击的特征，根据机械振动感应识别技术来统计枪支的击发弹药次数，设计了一种惯性式加速度感应开关，将前两较大加速度值的160 g, 70 g作为电路导通的加速度阈值；通过测试工装发现其单发和连发的采集的信号可以满足要求；通过Adams动力学仿真，对加速度感应开关进行动态响应分析，发现加速度感应开关能够有效的提取出枪支射击时的特征；通过Ansys有限元分析，对加速度感应开关的结构强度进行了校核，选用的材料均满足强度要求；通过实弹射击检验其计数的准确率，现场一共发射630发子弹，一共可靠记录了627次射击动作，总的计数准确率为99.5%,可以满足日常的使用要求。更多还原

【Abstract】 It is necessary for shooting to count the number of projectiles, but existing statistical methods are still in the manual stage, so a gun counter which can count automatically is needed. The gun counter is used to complete the statistics of shooting times, it can not only help shooters evaluate the remaining life of guns, but also prevent shooters from intercepting bullets, which is of great value to improve the quality of weapon maintenance and efficiency of the intelligent management of guns and bullets in shooting range. Combined with the structural characteristics of automatic rifle and two large backward impact on shooting, the mechanical vibration induction recognition technology is used to count the number of firing ammunition of gun, an inertial acceleration induction switch is designed, the first two large accelerations of 160 g and 70 g are taken as the acceleration threshold of circuit conduction. Through the test tool, it is found that the single and continuous signals can meet the requirements. Through Adams dynamics simulation, the dynamic response analysis of the acceleration induction switch is carried out, and it is found that the acceleration induction switch can effectively extract the characteristics of gun shooting. Through Ansys finite element analysis, the structural strength of the acceleration induction switch is checked, and the selected materials meet the strength requirements. The accuracy of counting is tested by live firing. A total of 630 rounds is fired and 627 shooting actions are reliably recorded. The total accuracy of counting is 99.5%, which can meet the requirements of daily use.更多还原