| 摘要 |
The present invention relates to a continuously variable transmission with cone discs, of which a driving cone disc and a driven cone disc respectively consist of a pair of movable cone discs and pressing cone discs; a pressing mechanism of the continuously variable transmission with cone discs consists of an end surface cam pressing mechanism arranged on the back of at least one pressing cone disc of a driving pressing cone disc and a driven pressing cone disc; a ratio control mechanism of the continuously variable transmission with cone discs consists of a ratio control shaft, as well as hollow screws and nuts, which are respectively arranged on the backs of the driving movable cone disc and the driven movable cone disc and adopt ball screw structures or sliding screw structures; the ratio control shaft and a constant ratio transmission mechanism enable the conversion relationship i1 between the rotation of the speed control shaft and the axial sliding of the driving movable cone disc to be equal to conversion relationship i2 between the rotation of the speed control shaft and the axial sliding of the driven movable cone disc, to ensure that the transmission shafts of the driving movable cone disc and the driven movable cone disc move axially and synchronously at the same speed and in the same direction. The end surface cam pressing mechanism and the ratio control mechanism of the transmission are spatially separated from each other, so that the axial dimension of the pressing mechanism can be reduced; the end surface cam pressing mechanism can be used to achieve forward and reserve pressing; pressing force can be adjusted in real time according to a transmitting torque, so that the transmitting efficiency is high, the service life of the system is long, and the reliability is high. |
