The ball screw
The ball screw
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滚珠丝杠
DOI:
--
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
斋藤伸吾
中科院分区:
文献类型:
--
作者:
横山将司;桥本浩司;原田徹;斋藤伸吾
Object of the present invention is to further improve the durability of the ball screw, the ball circulation properties and processability having groove-shaped ball return path (ball circulation groove). The ball screw comprising: a threaded shaft (201), its outer circumferential surface having a spiral groove (201a); a nut (202), the inner circumferential surface having a spiral groove (201a) facing the spiral groove (202a); Multi balls (203), balls rotatably charged in a spiral track is formed by two helical grooves (201a, 202a); and a ball circulation groove (241), which the balls (203) back from the end of the track starting point for circulation. Further, the corner portion (241c) and the respective side surface (241 b) and extending continuously from the both side surfaces of the ball circulation groove (241) (241b, 241b) in the axial direction (242) is formed rounded form.