| 摘要 |
A hydraulic system is provided for securing a cylinder liner to a pump modul e of a reciprocating pump, such as a mud pump. The hydraulic system includes a body attached to the pump module, a ram in sliding contact with the body and having a mating surface, preferably a radial shoulder, contacting the liner. Upon pressurization of fluid in a chamber defined by the body, the ram, and a pair of seals therebetween, the ram slides between a first position and a second position. The ram secures the liner to the module when in the first position and is removable in the second position. The system further includes a locking ring that engages the body, may be hand rotated upon pressurization, and mechanically holds the ra m in the first position in the absence of hydraulic pressure. The hydraulic system :is adapted to apply a precise axial securing force and to aid alignment of the liner. |
