| 摘要 |
FIELD: transport.SUBSTANCE: invention relates to automotive industry and can be used for development of transmissions for wheels vehicles of high cross-country capacity. Transmission with drive axles of portal type and stiff kinematics of all four half-axles and gearbox secondary shaft, wheel misaligned reduction gearboxes with single-row output planetary mechanisms with drive crown gears engaged with half-axles while sun gears are engaged with hydraulic machines shafts, hydraulic machine housings being rigidly coupled with those of wheel reduction gears. Working chambers of every drive axle are communicated via reverse slide valve with high-and low-pressure lines provided with boost system. High-pressure line incorporates fluid interlocking throttling mechanisms with stepwise drag variation. Note here that self-locking of ACS at vehicle turn depends on turn angle, front controlled wheel rpm and torque differences which allows actuation of one of said two self-locking modes or complete interlocking of interwheel differential gearing. Said lines include selective valves communicating pressure chambers of higher-load hydraulic machines of front and rear wheels with interaxle high-pressure line with electrically-controlled fluid two-mode locking mechanism.EFFECT: higher mobility, cross-country capacity and efficiency.11 cl, 13 dwg |
