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CA-3101型东风自卸车升降液压缸倾卸形式为液压单缸二级套筒式,第一级缸直径为145mm,第二级缸直径为110mm。常见的故障为漏油。原因除油封老化、磨损、断裂外,当升降缸作上下运动时,Y形油封移位,也会导致高压油从筒口溢出。Y形密封圈的接触压力分布情况(见图1),无油压时仅仅靠唇尖变形而产生的很小的接触压力;当有
CA-3101 Dongfeng dump truck lifting hydraulic cylinder dumping hydraulic cylinder type two sleeve type, the first cylinder diameter of 145mm, the second cylinder diameter of 110mm. Common fault is oil spill. Cause In addition to oil seal aging, wear and tear, when the lifting cylinder up and down movement, Y-shaped oil seal shift, will lead to high pressure oil spilled from the mouth. Y-ring contact pressure distribution (see Figure 1), no pressure only rely on lip deformation caused by a small contact pressure; when there is