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1. 发明授权

US4738651A Steplessly adjustable belt-type transmission 失效
标题翻译：无级调节皮带式传动
公开(公告)号：US4738651A
公开(公告)日：1988-04-19
申请号：US933706
申请日：1986-11-21
申请人： Serge Favache , Bernd Kempf , Karl Rabung
发明人： Serge Favache , Bernd Kempf , Karl Rabung
IPC分类号： F16H13/14 , F16H55/56 , F16H11/06
CPC分类号： F16H55/56 , A01D69/06 , F16H13/14 , F16H2009/166
摘要： An infinitely variable belt-type transmission for an agricultural machine or the like includes drive and driven pulleys and a pair of inversely variable diameter pulleys mounted on a shaft that is shiftable to vary the diameter of the pulleys and consequently the drive ratio of the transmission. The inner halves of the adjacent variable diameter pulleys are drivingly connected through a cam that exerts a force on the inner pulley halves tending to increase the pulley diameters and thereby increase the belt tension in response to an increase in torque transmitted through the transmission, and the shiftable pulley half on at least one of the pulleys is splined to its mating half so that the shifting movement in response to the torque increase results only in axial motion of the shiftable pulley half.
摘要翻译：用于农业机械等的无级变速带式变速器包括驱动和从动带轮以及安装在轴上的一对可变直径的滑轮，其可移动以改变滑轮的直径并因此改变变速器的驱动比。相邻的可变直径皮带轮的内半部通过凸轮驱动连接，所述凸轮在内皮带轮半部上施加力，倾向于增加皮带轮直径，从而响应于通过变速器传递的扭矩的增加而增加皮带张力，并且至少一个滑轮上的可移动滑轮一半花键到其配合的一半，使得响应于转矩增加的换档运动仅仅导致可移动滑轮半部的轴向运动。

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