| 摘要 |
A working cylinder of steam-air hammer includes a body in which piston is placed, with rings installed on it, rod, spacer rings, gasket, conical bushing. Inner surface of the body of cylinder has cylindrical form, there bushings are placed in sequence, one of those (inner one) has inner cylindrical surface, and the other surface is made stepped. The surface of each step has conical surface with same conicity with the inner surface of outer bushings, those are in form of arcs, and outer cylindrical surface. Inner bushing can move with respect to outer bushings with inner conical surface by means of spacer rings. |
