| 摘要 |
FIELD: machine building. ^ SUBSTANCE: invention relates to transport engineering and can be used in stepless tooth gearings. The proposed variator consists of two consecutively linked differential stages. The said first stage represents a mechanical differential mechanism. The second differential stage is a hydrodynamical differential converter incorporating two planetary rows, one of them being formed by kinematic links of multi-hear hydraulic pump (9) while the other one being formed by kinematic links of multi-gear hydraulic motor (10). The input shaft of hydraulic motor (9) represents a keyless wheel of the first planetary row. The hydraulic motor output shaft represents a central sun gear of the second planetary row (8). Housing (12) is fitted in bearings of variator casing (20) and makes a pinion frame for both differential stages, whereon freewheel clutch (11) is fitted. The dynamic hydraulic linkage circuit of the hydro mechanical differential converter incorporates an automatic bypass and control valves. ^ EFFECT: higher efficiency, increased conversion ratio, expanded automatic control range, improved engine performances, constant tractive power on driving wheels. ^ 4 dwg |
