VARIABLE DIAMETER PULLEY OF HIGH-POWER CONTINUOUSLY VARIABLE TRANSMISSION AND CONTINUOUSLY VARIABLE TRANSMISSION SYSTEM

摘要

Variable diameter pulley of continuously variable transmission for high-power vehicles and the continuously variable transmission system relate to continuously variable transmission, wherein the pulley (11-14) is cone-shaped. On the surface there are several sector shaped curved surfaces (61, 62) and conical surfaces (51, 52) distributed alternately, and the generators of the sector shaped curved surfaces are in parallel with the generators of the conical surfaces. The angles between any generator of the sector shaped curved surfaces and the centre line of the cone pulley are same. Said sector shaped curved surface is concave or convex shaped curved surface which has a different shape from the conical surfaces. Two variable diameter pulleys (11-14) are assembled on the same spline shaft (3, 8) in such a way that the sector shaped curved surfaces and conical surfaces of the two pulleys are set respectively face to face.