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HARMONIC DRIVE GEAR DEVICE HAVING POSITIVE SHIFT MESHING COMPOUND TOOTH PROFILE

机译:具有正移网格的复合齿形的谐波传动齿轮装置

摘要

In a harmonic drive gear device (1), radial deflection of a flexible external gear (3) is set at 2mn (1) which is larger than a normal deflection of 2mn (=1), and the tooth depth of both gears (2, 3) is set larger than a standard tooth depth (in case of =1). Meshing movement locus of both gears (2, 3) is approximated by a rack in case of 1, and using similar curves (AC, AD) obtained by similarly enlarging a curve (AB) on the unmeshing side at the post-stage of meshing from the vertex (deepest meshing position)(A) of the movement locus (M), the dedendum tooth profile portion (21) of a rigid internal gear (2) and the addendum tooth profile portion (31) of the flexible external gear (3) are defined and then both gears (2, 3) are brought into continuous contact. Contact pressure of the tooth is lowered by defining the addendum tooth profile portion (24) of the rigid internal gear (2) and the dedendum tooth profile portion (33) of the flexible external gear (3) by a line connected to the similar curves (AC, AD) thus enhancing the torque capacity. A harmonic drive gear device with a tooth profile of low contact pressure having a large tooth depth and a wide meshing region can thereby be attained.
机译:在谐波驱动齿轮装置(1)中,柔性外齿轮(3)的径向偏移设置为2mn(> 1),大于正常偏移量2mn(= 1),两个齿轮的齿深( 2、3)设置为大于标准齿深(= 1时)。在> 1的情况下,两个齿轮(2,3)的啮合运动轨迹由齿条近似,并使用相似的曲线(AC,AD),该曲线通过在后级的非啮合侧相似地放大曲线(AB)而获得。从运动轨迹(M)的顶点(最深啮合位置)(A),刚性内齿轮(2)的齿根齿轮廓部分(21)和弹性外齿轮的齿根齿轮廓部分(31)啮合确定了(3),然后使两个齿轮(2、3)连续接触。通过用连接到类似曲线的线限定刚性内齿轮(2)的齿顶齿轮廓部分(24)和柔性外齿轮(3)的齿根齿轮廓部分(33),降低了牙齿的接触压力。 (AC,AD)从而增强了扭矩容量。由此可以得到具有大的齿深和宽的啮合区域的具有低接触压力的齿廓的谐波传动齿轮装置。

著录项

  • 公开/公告号WO2010023710A1

    专利类型

  • 公开/公告日2010-03-04

    原文格式PDF

  • 申请/专利权人 HARMONIC DRIVE SYSTEMS INC.;ISHIKAWA SHOICHI;

    申请/专利号WO2008JP02361

  • 发明设计人 ISHIKAWA SHOICHI;

    申请日2008-08-29

  • 分类号F16H1/32;

  • 国家 WO

  • 入库时间 2022-08-21 18:39:25

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