| 摘要 |
<p>A hydraulic motor for stepped rotating motion of an outgoing shaft (8), which motor comprises a substantially circular cylindrical stator housing (2) with covers (1) mounted on each side of the housing's open sides and a rotor (3) rotatably mounted in the stator housing (2), which stator housing (2) has two ports (4, 5) for admission and discharge respectively of pressurized hydraulic fluid for rotating operation of the rotor (3) and which rotor (3) is further provided with, connected to or prepared for connection with an outgoing shaft (8). The motor is characterized in that the rotor (3) is circular cylindrical in shape with substantially flat end surfaces over the whole or parts of the rotor's (3) diameter and that along the rotor's (3) circular peripheral surface there are provided two or more recesses (20) for placing spring-loaded sealing rollers (7) which sealingly abut against the area between the stator's (2) internal circular peripheral surface (12) and the rotor's (3) external circular peripheral surface, and where the stator housing's (2) internal peripheral surface (12) over a part of the stator housing's (2) circumference is substantially circular cylindrical in shape with a diameter D1 and that the stator housing's (2) internal peripheral surface (12) over the remainder of the stator housing's (2) internal circumference is substantially circular cylindrical in shape with a diameter D2 and where the stator housing's (2) ports (4, 5) for admission and discharge of hydraulic fluid are provided at transmit ions between the diameters D1 and D2, and that D2 is larger than D1.</p> |
