MECHANICAL SPEED VARIATOR WITH EXCENTRIC DYNAMIC MASSES, HAVING A BALANCED CONSTRUCTION

摘要

1.Mechanical speed variator with eccentric masses, comprising: - a drive shaft (AM) with an axis of rotation (o) defined as the main axis of rotation of the variator; - a cam (C) that rotates with the drive shaft (AM); - at least at least, the first mass (M1), consisting of a disk with a center (c1) that does not coincide with the main axis of rotation (o), which is equipped with an eccentric hole (F1), in which said cam (C) fits accurately and freely for rotation; - at least a second mass (M2) consisting of a disk with a center (c2) that does not coincide with either the main axis of rotation (o) or the center (c1) of the first mass (M1), said second mass (M2) being provided an eccentric hole (F2) in which the first mass (M1) is placed precisely and freely for rotation; - a ring (A) consisting of a disk centered on the main axis of rotation (o) and equipped with an eccentric hole (F3), in which the second mass (M2) is placed precisely and freely for rotation; - sliding bearings (CR), located between said cam (C) and said first mass (M1), between said first mass (M1) and said second mass (M2) and between said second mass (M2) and said ring (A); characterized in that it contains: - holes (F) obtained on the indicated ring (A), spaced at equal angular distances, the centers of which all lie on the same circle (cf) with the center coinciding with the main axis of rotation (o); wherein said circumference (cf) is concentric and inner with respect to the circular upper part (Ce) with an inner circumference (Ic) tangential to said hole (F3); - a flange (FL) and a counterflange (CFL) connected to the indicated ring ( A) n