公开(公告)号：US20070042855A1

公开(公告)日：2007-02-22

申请号：US11250394

申请日：2005-10-17

申请人： Huyn Lee

发明人： Huyn Lee

IPC分类号： F16H23/00

CPC分类号： F16H1/32 ,  F16H55/08 ,  F16H2055/0893

摘要： Provided is an external gear of a planetary reduction gear having a cycloid tooth, a tooth part of the external gear having a cycloid tooth has a tooth apex protruded from a distal end, a tooth valley having a groove, and contact parts curvedly sloped between the tooth apex and the tooth valley, an outer surface of the external gear is divided into an abraded part corresponding to the tooth apex and the contact parts, and an un-abraded part corresponding to the tooth valley. The external gear of a reduction gear having a cycloid tooth of the present invention is capable of improving machining productivity to obtain economic effect and maintaining performance of the planetary reduction gear by abrading only a portion of an outer surface of the external gear, at which friction and contact pressure are concentratedly applied, and forming a groove at a tooth valley, at which the contact pressure is not applied, by undercut, without abrading an entire surface of the external gear, in order to increase anti-friction and durability and improve supporting force and precision of a tooth part with which the eternal gear and an internal gear of the planetary reduction gear having a cycloid tooth are meshed.

摘要翻译： 本发明提供一种具有摆线齿的行星减速齿轮的外齿轮，具有摆线齿的外齿轮的齿部具有从前端突出的齿顶，具有凹槽的齿谷，以及在凹部之间弯曲倾斜的接触部 齿顶和齿谷，外齿轮的外表面被分成对应于齿顶和接触部分的磨损部分，以及对应于齿谷的未磨损部分。 具有本发明的具有摆线齿的减速齿轮的外齿轮能够通过仅研磨外齿轮的外表面的一部分而提高机加工效率以获得经济效果并保持行星减速齿轮的性能， 并且集中施加接触压力，并且通过底切在没有施加接触压力的齿谷处形成凹槽，而不会磨损外齿轮的整个表面，以增加抗摩擦和耐久性并改善支撑 具有摆动齿的行星减速齿轮的永久齿轮和内齿轮啮合的齿部的力和精度被啮合。