公开(公告)号：WO2015079399A1

公开(公告)日：2015-06-04

申请号：PCT/IB2014/066384

申请日：2014-11-27

Applicant: C.M.S. S.P.A.

Inventor： MAZZINI, Davide ,  BURCHIANTI, Alessandro

IPC: B62M11/12 ,  B62M11/16 ,  F16H15/52

CPC classification number: F16H15/52 ,  B62M11/12 ,  B62M11/16

Abstract: A variable gear ratio device (1) is provided for comprising a planet gear (10) defining a rotation axis (10a), suitable to continuously vary the gear ratio and comprising at least one rocker gear (11); a spider (12) suitable to support the rocker gear (11) and defining a spider axis (12a) inclined in relation to the axis (10a); a sun gear (13) and a crown (14) defining, respectively, an inner (13a) and outer contact area (14a) for the rocker gear (11); wherein the inner contact area (13a) and the outer contact area (14a) are tapered in the same direction along the rotation axis (10a); and respectively define, at the points of contact with the rocker gear (11) and in relation to the rotation axis (10a), a first angle of inclination and a second angle of inclination different from each other; and wherein, on account of said torque variation, the rocker gear (11) is apt to passively translate in relation to said spider (12) along said spider axis (12a) varying its distance from said rotation axis (10a) and said contact points with said contact area (13a, 14a) and thus, the gear ratio of the variable gear ratio device (1); a torque regulator (16) suitable to command a reciprocal translation of said contact areas (13a, 14a) depending on such translation of the rocker gear (11).

Abstract translation: 可变齿轮比装置（1）被设置成包括限定旋转轴线（10a）的行星齿轮（10），适于连续变化齿轮比并包括至少一个摇臂齿轮（11）; 适于支撑所述摇臂齿轮（11）并限定相对于所述轴线（10a）倾斜的星形轮轴线（12）的星形轮（12）。 分别限定用于摇臂齿轮（11）的内部（13a）和外部接触区域（14a）的太阳齿轮（13）和表冠（14）。 其中所述内部接触区域（13a）和所述外部接触区域（14a）沿着所述旋转轴线（10a）沿相同的方向成锥形; 并且在与摇臂齿轮（11）接触的点处和相对于旋转轴线（10a）分别限定第一倾斜角和彼此不同的第二倾斜角; 并且其中，由于所述扭矩变化，所述摇臂齿轮（11）易于沿着所述星形轮轴线（12a）相对于所述星形轮（12）被动地平移，改变其与所述旋转轴线（10a）的距离和所述接触点 与所述接触区域（13a，14a），从而可变齿轮比装置（1）的齿轮比; 适于根据摇臂齿轮（11）的这种平移来指令所述接触区域（13a，14a）的往复平移的扭矩调节器（16）。