| 摘要 |
PURPOSE: An axial piston motor is provided to prevent a damage of a piston by continually supplying the residual oil inside valve to the piston in case the supply of the fluid pressure to a valve block is cut off. CONSTITUTION: An axial piston motor(100) comprises a valve block(30). The inner chamber(32) of the valve block comprises a spool(42), a branch injection hole(43), springs, a poppet head(52), an inclined plane(56), and a check valve(40). First and second spaces(46,48) are formed in the both sides of a barrier(44) at the center in the state that both ends of a spool is opened. The branch injection hole supplies the oil discharged to the valve block to the second space. The springs are respectively installed inside the first space and the poppet head of the spool. One spring flexibly supports the spool. The other spring flexibly supports a sliding motion of the poppet head. A part of the oil supplied to the second space flows into the chamber through a passing hole of the poppet head. The inclined plane is formed in a peripheral surface of the poppet head's a leading end. The inclined plane receives pressure of the oil supplied to the second space so that the poppet head is slid to the oblique direction. A part of the oil supplied to the second space is discharged through a branch discharging hole of the check valve to a discharging hole(36) of the valve block. |
