由于工作介质压力的增高,橡胶夹布密封件已日益广泛地用于液压传动系统。夹布密封件较橡胶密封件的主要优点是在较高压力下有较长的使用期。在液压传动工作时,液压作动筒中活杆或活塞的位移所损耗的功率与摩擦力有关。较大的摩擦力就要求增大液压作动筒的尺寸,降低其快速动作,并导致活杆丧失平稳的行程。研究了夹布密封件的摩擦力与工作压力值和组装的皮碗数量的关系。 Due to the increased pressure on the working medium, rubber clamping seals have become increasingly used in hydraulic transmission systems. The main advantage of fabric seals over rubber seals is their longer life at higher pressures. In the hydraulic transmission work, hydraulic jack or piston in the displacement of the power loss and friction related. Greater friction requires that the size of the hydraulic ram be increased, reducing its quick action and resulting in a loss of steady travel of the ram. The relationship between the friction of the cloth seal and the working pressure and the number of cups assembled was studied.