问答题
发布日期:2021-03-22
防空转撒砂电空阀(anti-slip sanding valve)是1997年公布的铁道科学技术名词。
受电弓电空阀(pantograph valve)是1997年公布的铁道科学技术名词。
机车撒砂装置是指机车向钢轨面撒砂的装置。由撒砂器、撒砂电空阀、砂箱和管路等组成。撒砂器和砂箱安装在转向架上,司机操纵撒砂电空阀,在压缩空气的作用下,砂箱内的砂子经撒砂器,进入撒砂管向轨面撒砂。撒砂可增大轮轨间粘着系数,以增大粘着牵引力和防止车轮空转。
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