| 摘要 |
A drive controlling mechanism comprises in combination: a hydraulic motor including a cylinder block, and a rotary shaft extending axially of and positioned within the cylinder block to be engaged with the cylinder block for rotation therewith; a motor housing for accommodating therein the hydraulic motor; a control block securely connected with the motor housing and rotatably receiving one end portion of the rotary shaft; a parking brake arrangement detachably received within the axially outer half of the control block for being capable of braking the rotary shaft; a control valve arrangement detachably mounted on the outer peripheral wall of the control block in fluidal communication with the parking brake arrangement by way of a shuttle valve accommodated in a radial bore formed in the control block so that the hydraulic motor is controlled to be driven by the control valve arrangement; and a pair of inlet-outlet conduits for introducing a pressure oil to the control valve arrangement and discharging the pressure oil from the control valve arrangement. |
