我们在修理设备时遇到双作用液压缸,橡胶皮碗如图1所示。该皮碗结构由于内径d较大,使压片2所压的面积较小,在受较高压力冲击的情况下,因橡胶固有的弹性和压片螺母5的锁紧程度有限,导致介质击穿皮碗,使之挤出压片槽外而变形,并使活塞杆移动缓慢或停止运动。因此,对皮碗的更换比较频繁,既给维修带来麻烦,又影响生产。 We encountered in the repair of equipment double-acting hydraulic cylinder, rubber cup as shown in Figure 1. Due to the larger inner diameter d of the cup structure, the pressing area of ​​the tablet 2 is smaller. Under the condition of higher pressure impact, due to the inherent elasticity of the rubber and the limited locking degree of the tablet nut 5, Wear the cup, extrude it out of the table and deform it and allow the piston rod to move slowly or stop moving. Therefore, the replacement of the cup more frequently, not only bring trouble to maintenance, but also affect the production.