公开(公告)号：US6066061A

公开(公告)日：2000-05-23

申请号：US287480

申请日：1999-04-06

申请人： Yowang Yun

发明人： Yowang Yun

IPC分类号： F16H3/42 ,  F16H3/02

CPC分类号： F16H3/42 ,  Y10T74/1966 ,  Y10T74/19949

摘要： A continuously variable gear transmission has a hemispherical drive gear providing an axially varying pitch diameter and an axially varying effective circular pitch, and a driven gear with a constant pitch diameter having teeth tapering axially in an opposite sense to the axially varying effective circular pitch of the drive gear. A pitch control drum guides teeth of the driven gear relatively around the shaft axis to continuously vary their effective circular pitch to match a circular pitch of the teeth of the drive gear for ensuring meshing engagement throughout the varying axial positions, whereby the velocity ratio of the transmission is varied continuously. The control drum has a guiding surface extending therearound with an axially tapering, conical guiding portion providing an arcuate guiding surface portion of constant transverse and continuously axially varying radius. An interconnected rod assembly links the adjacent movable teeth together for movement as a ring around the guiding surface of the drum so that the effective circular pitch of the teeth engaging the drive gear is determined by the radius of the guiding portion and so that a tooth engaging the drive gear has a constant angular velocity throughout such engagement, The shaft of the driven gear comprises a plurality of coaxial sub-shafts carrying respective individual teeth mounted coaxially with the drum. A mechanism continuously and simultaneously varies both an angle of intersection of the drive and driven gear shafts, bringing different circumferential locations of the drive gear having different pitch diameters into engagement with the driven gear, and a relative axial position of engagement of the gears, changing a circular pitch of the driven gear to match a circular pitch of the drive gear. A differential connects the selected teeth of the driven gear gear to a power output only when the teeth are at the constant angular velocity.

摘要翻译： 连续可变齿轮传动装置具有提供轴向变化的直径和轴向变化的有效圆形间距的半球形驱动齿轮，以及具有恒定桨距直径的从动齿轮，其具有与轴向变化的轴向变化的有效圆形间距 驱动装置 俯仰控制滚筒相对于轴线轴引导从动齿轮的齿，以连续地改变其有效的圆形间距以匹配驱动齿轮的齿的圆形间距，以确保在整个变化的轴向位置上的啮合接合，由此， 传输不断变化。 控制滚筒具有沿着其周向延伸的引导表面，其具有轴向渐缩的锥形引导部分，其提供恒定的横向和连续轴向变化的半径的弓形引导表面部分。 互连的杆组件将相邻的可移动齿连接在一起，作为围绕滚筒的引导表面的环移动，使得与驱动齿轮接合的齿的有效圆形间距由导向部分的半径确定， 驱动齿轮通过这种接合具有恒定的角速度。从动齿轮的轴包括多个同轴的副轴，承载与滚筒同轴安装的相应的单个齿。 机构连续同时地改变驱动和从动齿轮轴的交叉角度，使具有不同桨距直径的驱动齿轮的不同圆周位置与从动齿轮啮合，以及齿轮啮合的相对轴向位置，改变 从动齿轮的圆形间距与驱动齿轮的圆形间距相匹配。 只有当齿处于恒定的角速度时，差速器将从动齿轮的选定齿与功率输出相连。