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1. 发明授权

US06247376B1 Rollable enveloped worm with two curve profile 有权
标题翻译：可卷曲的包络蜗杆，具有两条曲线
公开(公告)号：US06247376B1
公开(公告)日：2001-06-19
申请号：US09352900
申请日：1999-07-13
申请人： Peter Shixiang Zhou , Harry Charles Buchanan, Jr. , Ralph John Unterborn
发明人： Peter Shixiang Zhou , Harry Charles Buchanan, Jr. , Ralph John Unterborn
IPC分类号： F16H116
CPC分类号： F16H55/22 , B21H5/005 , B21H5/02 , B21H7/182 , Y10T29/49469 , Y10T29/49471 , Y10T74/19828 , Y10T74/19953
摘要： A drive gear engages a driven gear with non-intersecting axes of rotation making an angle of approximately 90° with respect to one another. A shaft has a first portion with a predetermined diameter, and a second portion has an enveloped worm gear with at least one roll-formed helical tooth formed thereon with an outer diameter greater than the diameter of the first portion of the shaft. The extra envelopment achieves an overall smaller package size for competitive advantage. When the shaft is rolled, the outside teeth exceed the shaft diameter by a predetermined amount allowing more teeth to be in contact with the driven gear. An outer bearing can be placed at the end of the shaft to allow the teeth to be of a larger diameter than the shaft. The pitch of the teeth can vary. Preferably, the bearing groove is roll formed simultaneously with the teeth of the worm gear since the centroid of the enveloped teeth must be located with the gear center line.
摘要翻译：驱动齿轮与从动齿轮接合，其相互不相交的旋转轴线相互成大约90°的角度。轴具有预定直径的第一部分，第二部分具有形成在其上的至少一个辊形螺旋齿的包络蜗轮，其外径大于轴的第一部分的直径。额外的包络实现了整体更小的包装尺寸以获得竞争优势。当轴滚动时，外齿超过轴直径预定量，允许更多的齿与从动齿轮接触。外轴承可以放置在轴的端部，以允许齿的直径大于轴的直径。牙齿的间距可以变化。优选地，轴承槽与蜗轮的齿同时成形，因为包络齿的重心必须与齿轮中心线一起定位。

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