| 摘要 |
An electrohydraulic clutch includes a bidirectional electric motor, a hydraulic circuit and a multiple plate friction clutch pack. The bidirectional electric motor drives a ball screw through a gear reduction assembly. An electric brake on the motor output may be energized to inhibit its rotation. Alternatively, an anti-back drive wrap-spring assembly may be utilized on the motor output. The ball screw output bi-directionally translates a master piston of the hydraulic circuit which in turn advances and retracts an annular slave piston disposed adjacent the friction clutch pack. Hence, actuation of the electric motor displaces hydraulic fluid and compresses or relaxes the friction clutch pack, thereby transferring or inhibiting torque.
|
