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    • 2. 发明授权
    • Ball screw mechanism
    • 滚珠丝杠机构
    • US08584546B2
    • 2013-11-19
    • US12545508
    • 2009-08-21
    • Yoshihiro FukanoToru SugiyamaMasaki Imamura
    • Yoshihiro FukanoToru SugiyamaMasaki Imamura
    • F16H1/24
    • F16H25/2219
    • A ball screw mechanism is equipped with a ball screw shaft formed from a metallic material, a displacement nut inserted over an outer circumferential side of the ball screw shaft, steel balls installed between a first screw groove formed on the ball screw shaft and a second screw groove formed in the displacement nut, and a pair of first and second return members, through which the steel balls are circulated between one end side and another end side of the displacement nut. The first and second return members include main body parts mounted respectively onto one end and another end of the displacement nut, and cylindrical parts that project outwardly with respect to the main body parts. A return passage, through which the steel balls are circulated, is formed inside of the main body parts and the cylindrical parts.
    • 滚珠丝杠机构配备有由金属材料形成的滚珠丝杠轴,插入滚珠丝杠轴的外周侧的移动螺母,安装在形成于滚珠丝杠轴上的第一螺旋槽与第二螺丝 形成在位移螺母中的槽,以及一对第一和第二返回构件,钢球通过该一对第一和第二返回构件在位移螺母的一端侧和另一端侧之间循环。 第一和第二返回构件包括分别安装在位移螺母的一端和另一端的主体部分和相对于主体部分向外突出的圆柱形部件。 钢球循环的返回通道形成在主体部分和圆柱形部分的内部。
    • 3. 发明申请
    • BALL SCREW MECHANISM
    • 球螺丝机构
    • US20100043583A1
    • 2010-02-25
    • US12545508
    • 2009-08-21
    • Yoshihiro FukanoToru SugiyamaMasaki Imamura
    • Yoshihiro FukanoToru SugiyamaMasaki Imamura
    • F16H25/22
    • F16H25/2219
    • A ball screw mechanism is equipped with a ball screw shaft formed from a metallic material, a displacement nut inserted over an outer circumferential side of the ball screw shaft, steel balls installed between a first screw groove formed on the ball screw shaft and a second screw groove formed in the displacement nut, and a pair of first and second return members, through which the steel balls are circulated between one end side and another end side of the displacement nut. The first and second return members include main body parts mounted respectively onto one end and another end of the displacement nut, and cylindrical parts that project outwardly with respect to the main body parts. A return passage, through which the steel balls are circulated, is formed inside of the main body parts and the cylindrical parts.
    • 滚珠丝杠机构配备有由金属材料形成的滚珠丝杠轴,插入滚珠丝杠轴的外周侧的移动螺母,安装在形成于滚珠丝杠轴上的第一螺旋槽与第二螺丝 形成在位移螺母中的槽,以及一对第一和第二返回构件,钢球通过该一对第一和第二返回构件在位移螺母的一端侧和另一端侧之间循环。 第一和第二返回构件包括分别安装在位移螺母的一端和另一端的主体部分和相对于主体部分向外突出的圆柱形部件。 钢球循环的返回通道形成在主体部分和圆柱形部分的内部。
    • 8. 发明授权
    • Method of solvent extraction of nickel sulfate solutions
    • 溶剂萃取硫酸镍溶液的方法
    • US5888462A
    • 1999-03-30
    • US67019
    • 1998-04-28
    • Susumu MakinoNaoyuki TsuchidaMasaki ImamuraKazuyuki TakaishiYoshitomo Ozaki
    • Susumu MakinoNaoyuki TsuchidaMasaki ImamuraKazuyuki TakaishiYoshitomo Ozaki
    • C01G53/10C22B3/20C22B3/26C22B23/00B01D11/00C01B17/00
    • C22B23/0453C22B3/0005Y02P10/234
    • A method of solvent extraction of a nickel sulfate solution uses a multi-stage, counter-current, organic solvent extraction system composed of at least two extractors connected in series, and includes a first extraction step of feeding a crude nickel sulfate solution that contains sodium and ammonium impurities into a second-stage extractor, wherein it is treated in countercurrent flow and at a pH of 6.5 to 7.0 with an organic extractant fed into the second-stage extractor from the first-stage extractor, to thereby extract some of nickel in the crude nickel sulfate solution into the organic extractant; and a second extraction step of transferring the nickel-containing, organic phase to an organic phase-scrubbing step to remove sodium and ammonium, while transferring the nickel sulfate solution, from the first extraction step and from which some of nickel has been removed, to the first-stage extractor, wherein it is treated in countercurrent flow and at a pH of 5.5 to 6.5 with a fresh organic extractant, to thereby extend the remaining nickel in the nickel sulfate solution into the organic extractant. The nickel-containing organic phase from the second extraction step is divided into two portions, one portion being fed into the second-stage extractor while the other portion is transferred to a by-pass, organic phase-scrubbing step it to remove sodium and ammonium.
    • 硫酸镍溶液的溶剂萃取方法使用由串联连接的至少两个萃取器组成的多级,逆流有机溶剂萃取系统,包括第一提取步骤,将含有钠的粗硫酸镍溶液 和铵杂质进入第二级提取器,其中以逆流流动并且在6.5至7.0的pH下用从第一级萃取器进料到第二级萃取器中的有机萃取剂进行处理,从而提取一些镍 将粗硫酸镍溶液加入有机萃取剂中; 以及第二提取步骤,将含镍的有机相转移到有机相洗涤步骤以除去钠和铵,同时从第一提取步骤将镍硫酸盐溶液从其中除去一些镍转移到 第一级萃取器,其中以逆流流动并且在5.5至6.5的pH下用新鲜的有机萃取剂处理,从而将硫酸镍溶液中的剩余的镍延伸到有机萃取剂中。 将来自第二提取步骤的含镍有机相分为两部分,一部分进料到第二阶段萃取器中,而另一部分转移到旁路有机相洗涤步骤中以除去钠和铵 。