Patent ID: 8282522

Claim:
A mechanical-hydraulic continuously variable speed transmission comprising a housing in which mechanical variable speed components and hydraulic variable speed components installed in turn on a power input shaft; wherein, the mechanical variable speed components comprising an eccentric mechanism rotating with the power input shaft, a pushing disc installed on the eccentric mechanism rotatablely, a fixing disc arranged on one side of the pushing disc and fixed to the inner side of the housing, a driving disc arranged on other side of the pushing disc and installed on the power input shaft rotatablely, and slider components for power transmission positioned between the fixing disc and the pushing disc, and between the pushing disc and the driving disc too; wherein the eccentric mechanism adjusts amount of eccentricity between the pushing disc and the power input shaft according to the load on the driving disc by pushing the pushing disc to work between two extreme eccentric positions, so as to adjust driving torque of the driving disc and transmission rotational speed ratio between the power input shaft and the driving disc; the hydraulic variable speed components comprising a pump wheel fixed on and rotated with the power input shaft and a turbine fixed on and rotated with the driving disc; wherein transmission medias are filled in space between the pump wheel and the turbine for power transmission, and the turbine is provided with a turbine output shaft extending out of the housing; wherein, adjustment of eccentricity between the pushing disc and the power input shaft turns into change of transmission rotational speed ratio between the power input shaft and a turbine.