公开(公告)号：US20150369349A1

公开(公告)日：2015-12-24

申请号：US14742029

申请日：2015-06-17

申请人： HIWIN TECHNOLOGIES CORP.

发明人： Chang-Hsin KUO ,  Sheng-Chih CHANG

IPC分类号： F16H25/22

CPC分类号： F16H25/2228 ,  F16H25/2233 ,  Y10T74/19763

摘要： An internal-circulation-type ball screw includes a nut, a screw shaft, and two returning members. The nut has an internal-thread groove. The screw shaft passes through the nut and has an external-thread groove. The internally and external-thread grooves are aligned to form a helix channel. The screw shaft has a returning channel and two opposite receiving recesses. Each of the receiving recesses is radially communicated between the external-thread groove and the returning channel. The returning members are received in the receiving recesses of the screw shaft and each have a redirecting channel. The redirecting channel is connected between the helix channel and the returning channel, so that balls are allowed to circulate along the helix channel, the redirecting channel and the returning channel. Thereby, the internal-circulation-type ball screw provides good durability, reliability and smoothness in use.

摘要翻译： 内循环型滚珠丝杠包括螺母，螺杆轴和两个返回构件。 螺母具有内螺纹槽。 螺纹轴通过螺母，并具有外螺纹槽。 内螺纹槽和外螺纹槽对准以形成螺旋通道。 螺杆轴具有返回通道和两个相对的接收凹槽。 每个接收凹部在外螺纹凹槽和返回通道之间径向连通。 返回构件被容纳在螺杆轴的接收凹部中，并且每个具有重定向通道。 重定向信道连接在螺旋信道和返回信道之间，使得允许球沿着螺旋信道，重定向信道和返回信道循环。 因此，内循环式滚珠丝杠在使用中提供良好的耐久性，可靠性和平滑性。

公开(公告)号：US20150362050A1

公开(公告)日：2015-12-17

申请号：US14503885

申请日：2014-10-01

申请人： HIWIN TECHNOLOGIES CORP.

发明人： Chang-Hsin KUO ,  Sheng-Chih CHANG

IPC分类号： F16H25/22

CPC分类号： F16H25/2228 ,  F16H25/2214 ,  Y10T74/19763

摘要： A tunnel raceway type ball screw assembly includes a screw nut having an inner thread groove, a screw shaft inserted through the screw nut and including outer grooves, a mounting groove extending across the outer grooves and a first reflow groove in radial communication with the mounting groove, and a reflow component mounted in the mounting groove of the screw shaft and including a rolling groove connected with the outer grooves to form an outer thread that defines with the inner thread groove a spiral channel therebetween and a second reflow groove that defines with the first reflow groove a reflow channel therebetween in communication with the spiral channel. Thus, multiple balls can be cycled in the spiral channel and the reflow channel.

摘要翻译： 隧道滚道式滚珠丝杠组件包括具有内螺纹槽的螺母，通过螺母插入的螺纹轴，包括外槽，跨越外槽延伸的安装槽和与安装槽径向连通的第一回流槽 以及安装在所述螺杆轴的安装槽中的回流部件，并且包括与所述外槽连接的滚动槽，以形成外螺纹，所述外螺纹与所述内螺纹槽限定在其间的螺旋通道，以及第二回流槽， 在其间回流沟槽，其与螺旋通道连通。 因此，可以在螺旋通道和回流通道中循环多个球。