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三、公共汽车和电车开关门机构 1.机构概述汽车气动开关门机构种类不少,性能亦有较大的差异。这里介绍的是一种气动与机械连杆组合机构,这种机构比较完善,具有典型性。气缸的工作原理气缸的结构如图1所示。它是一种差动气缸,大活塞左腔总是和气源接通的。当压缩空气通过二位三通控制气阀进入气缸右腔后,
Third, the bus and tram switch door agencies 1. Agency Overview Automotive pneumatic door agencies a lot of types, performance, there are major differences. Here is a combination of pneumatic and mechanical linkage mechanism, this mechanism is relatively complete, typical. The working principle of cylinder Cylinder structure shown in Figure 1. It is a differential cylinder, large piston left cavity and the air is always connected. When the compressed air through the two three-way control valve into the right cylinder chamber,