车载升降桅杆系统的关键技术思考

为提高车载光电系统的作用距离，设计了一种升降式桅杆，采取液压驱动和机械传动相结合的复合传动形式，桅杆采用方形结构，长宽比控制在1∶20之内，采用硬铝合金材料，壁厚不小于3mm，桅杆最大升起高度10m，升起或降下时间1min，最大负重200kg。分析了桅杆的载荷能力、抗风特性和振动特性，给出了一种无滑环发条式收线装置，适合桅杆上下多路光电信号和电源电压传输。

Thinking on key technology of vehicle mounted extensible mast system

For enhancing the operating range of vehicle mounted E-O system and keeping better observing ability when the vehicle is concealable, an elevator mast system which could burden a long-range E-O system was designed. The compound transmission mode which combines the hydrolic drive with the mechanical transmission assembly is adopted. The square structure is used by the mast, whose length-width ratio is controlled within 1∶20. It is made of aluminium alloy, and its well thickness is more than 3mm. Its raising height is 10m, the duration of rising up or getting down is 1min, and the maximum loading capacity is 200kg. The loading capability, wind resistance and vibration characteristic of the mast are analyzed. A spring take-up without slip ring is presented, which is suitable for the signals to go to or come from the mast and the current to reach to the optical systems mounted on the top of the mast.