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    • 7. 发明授权
    • Continuously variable V-belt transmission
    • 连续可变的V型皮带传动
    • US4735598A
    • 1988-04-05
    • US881057
    • 1986-07-01
    • Shuzo MorotoShiro SakakibaraMasahiro HasebeMasashi Hattori
    • Shuzo MorotoShiro SakakibaraMasahiro HasebeMasashi Hattori
    • F16H9/16F16H63/06F16H9/18
    • F16H63/067F16H9/16
    • Pulleys are provided with load cam mechanisms which exert axial forces corresponding to transmitted torque, and actuator means such as ball screw mechanisms which shift the movable sheaves of both pulleys in axial direction, wherein the axial forces occuring at the pulleys are carried by their shafts and do not act on the housing. A counter shaft is located between the primary and secondary shafts, the countershaft being rotated to drive the actuator means through gearing such as gearwheels, to alter the drive ratio. During power transmission, the axial forces acting on the movable sheaves of primary and secondary pulleys are converted into torque by the actuator means, where the torques are transmitted to the counter shaft in the form of counteracting torques, so that alteration of drive ratio can be made with slight effort on the counter shaft, equivalent ot the difference between the counteracting torques.By using a non-uniform cam mechanism for the actuator means, or by using non-circular gearwheels for the gearing, the displacements of the movable sheaves are matched with their proper displacements determined by the belt.
    • 皮带轮具有施加对应于传递转矩的轴向力的负载凸轮机构,以及诸如滚珠丝杠机构的致动器装置,其将两个滑轮的可动滑轮沿轴向方向移动,其中在滑轮处产生的轴向力由它们的轴承载, 不要对房屋采取行动 副轴位于主轴和副轴之间,中间轴旋转以通过诸如齿轮的齿轮驱动致动器装置,以改变驱动比。 在动力传递期间,作用在主滑轮和次级滑轮的可动滑轮上​​的轴向力通过致动器装置转换为扭矩,其中扭矩以反作用力的形式传递到副轴,因此驱动比的改变可以是 在反作用轴上作出轻微的作用,相当于反作用力之间的差异。 通过使用用于致动器装置的不均匀的凸轮机构,或者通过使用用于传动装置的非圆形齿轮,可动滑轮的位移与其由皮带确定的适当的位移相匹配。