公开(公告)号：EP1983223A2

公开(公告)日：2008-10-22

申请号：EP08154599.8

申请日：2008-04-16

申请人： JTEKT CORPORATION

发明人： Ando, Junji ,  Sakai, Naoyuki ,  Saito, Hideyuki ,  Yamashita, Yozo

IPC分类号： F16H55/08

CPC分类号： F16H57/0483 ,  F16H48/285 ,  F16H57/0431 ,  F16H57/0463 ,  F16H57/0479 ,  Y10T29/49464

摘要： A plurality of microscopic grooves 31 are created on the surface of the teeth of planetary gears, and thus, irregular unevenness is created. This irregular unevenness includes a plurality of first microscopic grooves 31a which function as lubricant grooves and a plurality of second microscopic grooves 31b which are shallower than the first microscopic grooves 31a.

摘要翻译： 一种限滑差速器，包括：多个行星齿轮; 用于支撑行星齿轮的行星架，使得行星齿轮能够绕其轴线旋转并与行星齿轮的齿表面接触并滑动; 以及与行星齿轮架同轴配置并通过行星齿轮差速旋转的太阳齿轮和齿圈，其中，限滑差速器限制在太阳齿轮和齿圈之间产生的差动运动，不均匀的不均匀性 在行星齿轮的齿的表面中的至少任一个上形成有行星齿轮架的滑动表面，该滑动表面与齿的表面接触并滑动，其特征在于： 产生不均匀的不均匀性，具有通过傅立叶分析发现的40μm〜60μm间距的功率的最大值为0.4μm〜1.2μm的表面粗糙度。

公开(公告)号：EP1983223A3

公开(公告)日：2011-04-13

申请号：EP08154599.8

申请日：2008-04-16

申请人： JTEKT CORPORATION

发明人： Ando, Junji ,  Sakai, Naoyuki ,  Saito, Hideyuki ,  Yamashita, Yozo

IPC分类号： F16H55/08 ,  F16H48/20

CPC分类号： F16H57/0483 ,  F16H48/285 ,  F16H57/0431 ,  F16H57/0463 ,  F16H57/0479 ,  Y10T29/49464

摘要： A limited slip differential, comprising: a plurality of planetary gears; a planetary carrier for supporting the planetary gears in such a manner that the planetary gears can rotate on their axes and revolve while making contact with and sliding against a surface of teeth of the planetary gears; and a sun gear and a ring gear which are arranged coaxially with the planetary carrier and are allowed to differentially rotate by means of the planetary gears, wherein the limited slip differential limits differential motion generated between the sun gear and the ring gear, irregular unevenness is created on at least either of the surface of the teeth of the planetary gears, and the sliding surface of the planetary carrier which makes contact with and slides against the surface of the teeth, the limited slip differential being characterized in that:
the surface where the irregular unevenness is created has such a surface roughness that the maximum value of the power of a pitch of 40 µm to 60 µm as found through Fourier analysis is 0.4 µm to 1.2 µm.