PARKER两位三通换向阀,派克比例阀* 返回列表页

PARKER两位三通换向阀,派克比例阀*

六通换向阀主要由阀体、密封组件、凸轮、阀杆、手柄和阀盖等零部件组成（图1）。阀门由手柄驱动,通过手柄带动阀杆与凸轮旋转,凸轮具有定位驱动与锁定密封组件的开启与关闭功能。手柄逆时针旋转,两组密封组件分别在凸轮的作用下关闭下端的两个通道,上端的两个通道分别与管道装置的进口相通。反之,上端的两个通道关闭,下端两个通道与管道装置的进口相通,实现了不停车换向。
六通换向阀1上阀盖 2手柄 3阀杆 4凸轮 5密封组件 6阀盖 7阀体
（1）六通阀的阀体由隔板分成两腔,每腔都有3个通道,中间为进油口,两端为出油口。阀体为碳钢板焊结构,体积小,质量轻,结构紧凑,提高了材料的利用率,缩短了生产周期,降低了成本。密封面堆焊不锈钢,防锈耐腐蚀,密封面经过精加工后抛光研磨,表面粗糙度Ra≤0.8μm。
（2）六通阀有两组密封组件。每组密封组件（图2）由阀瓣、密封圈、调整块、调节螺钉、夹板和螺栓组成。阀瓣为碳钢板焊件,设有加强筋,即增加阀瓣强度又起导向作用,保证每组阀瓣间的同轴度。阀瓣上镶嵌聚氨脂橡胶圈,该材料具有耐油、耐磨损、性能稳定、密封良好和使用寿命长的特点。在凸轮的作用下,密封圈的球面与阀体密封面相接触产生挤压弹性变形,达到密封效果。调整块和调节螺钉在两组密封组件不能同步到位时可起调整作用,确保各通道密封性能同步到位。
密封组件1夹板 2螺栓 3调整块 4阀瓣 5密封圈 6调整螺钉
（3）阀杆与阀体隔板和上阀盖间的轴向密封采用O形圈。
（4）阀体隔板及上阀盖轴孔部位镶有铜套,可减小与O形圈间的摩擦力矩,密封组件开启与关闭灵活,操作力矩小。
（5）上阀盖设有指示牌及限位螺钉,阀杆上安装指针,明确指示各通道的接通状况,易于操作。

PARKER两位三通换向阀,派克比例阀*

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