A disclosed piston valve for a railway vehicle braking system comprises a left valve deck, a shell, a right valve deck, a left piston assembly, a right piston assembly and a valve sleeve, the left valve deck and the right valve deck are arranged in the left side and the right side of the shell respectively, and the left piston assembly, the right piston assembly and the valve sleeve are all arranged in the shell. A hexagonal blind hole for installation is formed in the end face of the left side of the left piston assembly, a through hole for tightening and fixing is formed in a step shaft of the left piston assembly, a sealing ring installation groove is formed in the cylindrical face of the left side of the left piston assembly, a second sealing ring is arranged in the sealing ring installation groove, and a threaded hole is formed in the end face of the right side of the left piston assembly. The piston valve for the railway vehicle braking system overcomes the defects that a traditional pneumatic control reversing valve is complex in structure, large in size, unreliable in sealing, large in kinetic friction force and the like, and has the main advantages of being of a plate typeconnecting structure, simple in structure, convenient to replace elements, small in friction resistance, convenient to assemble, disassemble and maintain and the like.
本发明公开了一种轨道车辆制动系统用活塞阀,包括左阀盖、壳体、右阀盖、左活塞组件、右活塞组件和阀套,所述左阀盖和右阀盖分别设置在壳体的左右两侧,左活塞组件、右活塞组件和阀套均设置在壳体内部,左活塞组件的左侧端面设置有安装用六方盲孔,左活塞组件的台阶轴处设置有拧紧固定用的通孔,且左活塞组件左侧圆柱面上设置有密封圈安装槽,密封圈安装槽内设置有密封圈二,所述左活塞组件右侧端面设置有螺纹孔。本轨道车辆制动系统用活塞阀,避免了传统的气控换向阀结构复杂、体积大、密封不可靠、运动摩擦力大等缺点,主要优点为:该产品为板式连接结构,结构简单、更换元件方便、摩擦阻力小,便于装卸和维修。
Piston valve for railway vehicle braking system
一种轨道车辆制动系统用活塞阀
2021-04-02
Patent
Electronic Resource
Chinese
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