Since cannon drum of agile shell-feeding system rotates frequently and intermittently, its motion must be steady. Outline of driving cam determines the motion of cannon drum, so it is necessary to select the proper ou...Since cannon drum of agile shell-feeding system rotates frequently and intermittently, its motion must be steady. Outline of driving cam determines the motion of cannon drum, so it is necessary to select the proper outline of cam. Through analysis of parabolic outline and cycloid outline of the cams, the outline that combines the two curves is obtained. According to the demand of production,the value of the outline is revised, and then the method of fitting curve is used to get the expression of the angle of cam and the displacement of the driven part. Through analyzing the motion of the cannon drum, it is suggested that the angle of the cam is proportion to the displacement of the driven part. The cam with the specially derived outline can move steadily.展开更多
据美国陆军技术网站2018年10月14日报道,美国陆军已经研制出自行型XM-907 155 mm 58倍口径加农炮。基于这一增强设计的M-109A8型自行火炮预计2023年部署,这将为美国陆军提供强大和高精度的加农炮火力,射程将达到70km,美国陆军甚至希望...据美国陆军技术网站2018年10月14日报道,美国陆军已经研制出自行型XM-907 155 mm 58倍口径加农炮。基于这一增强设计的M-109A8型自行火炮预计2023年部署,这将为美国陆军提供强大和高精度的加农炮火力,射程将达到70km,美国陆军甚至希望射程达到100km的目标。这不是最终目标,美国陆军还计划试验射程超过1000km的战略火炮。展开更多
文摘Since cannon drum of agile shell-feeding system rotates frequently and intermittently, its motion must be steady. Outline of driving cam determines the motion of cannon drum, so it is necessary to select the proper outline of cam. Through analysis of parabolic outline and cycloid outline of the cams, the outline that combines the two curves is obtained. According to the demand of production,the value of the outline is revised, and then the method of fitting curve is used to get the expression of the angle of cam and the displacement of the driven part. Through analyzing the motion of the cannon drum, it is suggested that the angle of the cam is proportion to the displacement of the driven part. The cam with the specially derived outline can move steadily.
文摘据美国陆军技术网站2018年10月14日报道,美国陆军已经研制出自行型XM-907 155 mm 58倍口径加农炮。基于这一增强设计的M-109A8型自行火炮预计2023年部署,这将为美国陆军提供强大和高精度的加农炮火力,射程将达到70km,美国陆军甚至希望射程达到100km的目标。这不是最终目标,美国陆军还计划试验射程超过1000km的战略火炮。
