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11. 发明授权

US06216821B1 Lubricating apparatus for ball screw 失效
标题翻译：滚珠丝杠润滑装置
公开(公告)号：US06216821B1
公开(公告)日：2001-04-17
申请号：US09104517
申请日：1998-06-25
申请人： Ken Namimatsu , Osamu Ideta , Kazuo Miyaguchi , Toshikazu Yabe
发明人： Ken Namimatsu , Osamu Ideta , Kazuo Miyaguchi , Toshikazu Yabe
IPC分类号： F16N1500
CPC分类号： F16H25/2418 , F16H25/2204 , F16H57/0497
摘要： A lubricating apparatus for a ball screw which can sufficiently lubricate even in a high load usage is disposed between a ball nut and a screw shaft, and a polymer member containing a lubricant being mainly in slidable contact with an outer diameter portion of the screw shaft is mounted to at least any one of both ends of the ball nut and a space including a ball not-passing space in an inner portion of the ball nut. The polymer member prevents the lubricant attached to the thread groove of the screw shaft from being scraped off during oscillations of the screw shaft, such that the lubricant attached to the thread groove can be efficiently maintained.
摘要翻译：另外，在滚珠螺母和螺杆轴之间配置有能够充分润滑的滚珠丝杠用润滑装置，并且含有主要与螺杆轴的外径部滑动接触的润滑剂的聚合物构件是安装到滚珠螺母的两端中的至少任一个，以及在滚珠螺母的内部具有包括球不通过空间的空间。聚合物构件防止螺杆轴的螺纹槽附着的润滑剂在螺杆轴的摆动期间被刮掉，从而可以有效地保持附着在螺纹槽上的润滑剂。

12. 发明授权

US07159481B2 Ball screw device and linear motion device 有权
标题翻译：滚珠丝杠装置和直线运动装置
公开(公告)号：US07159481B2
公开(公告)日：2007-01-09
申请号：US10945110
申请日：2004-09-21
申请人： Kazuo Miyaguchi , Takeshi Nakazawa , Yoshinori Mizumura
发明人： Kazuo Miyaguchi , Takeshi Nakazawa , Yoshinori Mizumura
IPC分类号： F16H27/02 , F16H29/02 , F16C19/20 , F16C33/37
CPC分类号： F16C33/3706 , F16C19/20 , F16C29/064 , F16C33/3713 , F16H25/2238 , F16H2025/2242 , Y10T74/18568 , Y10T74/18648 , Y10T74/18656 , Y10T74/19693 , Y10T74/19702 , Y10T74/19744 , Y10T74/19777 , Y10T74/19953
摘要： In a ball screw device comprising a screw shaft and a nut which make relative movement to each other through a multiplicity of balls, as well as in a linear motion device comprising an outer member and an inner member which make the relative movements to each other through the multiplicity of balls, a spacer having two concave surfaces facing respectively to balls, is disposed between the balls adjacent to each other. In one preferred form, the spacer has such a configuration that the balls adjacent to each other come into contact with at least three or more outer edge portions of the spacer or portions vicinal to the outer edges.
摘要翻译：在一种滚珠丝杠装置中，该滚珠丝杠装置包括通过多个滚珠使彼此相对运动的螺杆轴和螺母，以及包括外部构件和内部构件的直线运动装置，所述外部构件和内部构件使彼此相对运动多个球，具有分别面对球的两个凹面的间隔件设置在彼此相邻的球之间。在一种优选形式中，间隔件具有这样一种构造，即彼此相邻的滚珠与间隔件的至少三个或更多的外缘部分或与外边缘相邻的部分接触。

13. 发明授权

US06813968B2 Ball screw device and linear motion device 有权
公开(公告)号：US06813968B2
公开(公告)日：2004-11-09
申请号：US10283307
申请日：2002-10-30
申请人： Kazuo Miyaguchi , Tsutomu Ohkubo , Takeshi Nakazawa , Shirouji Yabe , Soichiro Kato , Nobumitsu Takahashi , Ryouichi Sato , Hiroki Yamaguchi , Yoshinori Mizumura
发明人： Kazuo Miyaguchi , Tsutomu Ohkubo , Takeshi Nakazawa , Shirouji Yabe , Soichiro Kato , Nobumitsu Takahashi , Ryouichi Sato , Hiroki Yamaguchi , Yoshinori Mizumura
IPC分类号： F16H114
CPC分类号： F16C33/3706 , F16C19/20 , F16C29/064 , F16C33/3713 , F16H25/2238 , F16H2025/2242 , Y10T74/18568 , Y10T74/18648 , Y10T74/18656 , Y10T74/19693 , Y10T74/19702 , Y10T74/19744 , Y10T74/19777 , Y10T74/19953
摘要： In a ball screw device comprising a screw shaft and a nut which make relative movement to each other through a multiplicity of balls, as well as in a linear motion device comprising an outer member and an inner member which make the relative movements to each other through the multiplicity of balls, a spacer having two concave surfaces facing respectively to balls, is disposed between the balls adjacent to each other. A section of each of the concave surfaces of the spacer is formed of two circular arcs of which central positions deviate from each other to form a Gothic arch. The spacer has such a configuration that the balls adjacent to each other come into contact with outer edges thereof or portions vicinal to the outer edges. The spacer also has such a configuration that the balls adjacent to each other come into contact with at least three or more outer edge portions thereof or portions vicinal to the outer edges. The spacer may have a through-hole formed in a thinnest portion thereof.

14. 发明授权

US06450055B1 Ball screw apparatus 有权
标题翻译：滚珠丝杠装置
公开(公告)号：US06450055B1
公开(公告)日：2002-09-17
申请号：US09653072
申请日：2000-08-31
申请人： Noriaki Sekiya , Daisuke Maruyama , Toshiyuki Iehisa , Kazuo Miyaguchi
发明人： Noriaki Sekiya , Daisuke Maruyama , Toshiyuki Iehisa , Kazuo Miyaguchi
IPC分类号： F16H2522
CPC分类号： F16H25/2214 , Y10T74/19772
摘要： A ball screw apparatus comprises a screw shaft, a nut, and a plurality of balls. A first helical groove is formed at an outer peripheral surface of the screw shaft. A second helical groove is formed at an inner peripheral surface of the nut. A rolling contact way of balls is defined by the first helical groove and the second helical groove facing each other. A connecting way formed of a tube for connecting a part and another part of the rolling contact way is provided on the nut. An endlessly communicating circuit is defined by the connecting way and the rolling contact way. Each of the balls is endlessly arranged in the circuit. A smoothly continuous machined portion is formed by cutting out an angular portion between the helical groove and the connecting way of the nut.
摘要翻译：滚珠丝杠装置包括螺杆轴，螺母和多个滚珠。第一螺旋槽形成在螺杆轴的外周面。在螺母的内周面形成第二螺旋槽。球的滚动接触方式由第一螺旋槽和彼此面对的第二螺旋槽限定。在螺母上设置由用于连接一部分的管和滚动接触方式的另一部分形成的连接方式。无缝连接电路由连接方式和滚动接触方式定义。每个滚珠都是循环地布置在电路中。通过切割螺旋槽和螺母的连接方式之间的角部形成平滑连续的加工部。

15. 发明授权

US6092434A Ball screw device of ball-circulating-part embedded type 失效
标题翻译：球形循环部分嵌入式滚珠丝杠装置
公开(公告)号：US6092434A
公开(公告)日：2000-07-25
申请号：US964468
申请日：1997-11-04
申请人： Tetsuo Matsumoto , Shigeharu Kobayashi , Kazuo Miyaguchi
发明人： Tetsuo Matsumoto , Shigeharu Kobayashi , Kazuo Miyaguchi
IPC分类号： F16H25/22 , F16H25/24
CPC分类号： F16H25/2214 , F16H2025/2242 , Y10T403/68 , Y10T74/19767
摘要： A ball screw device of a ball-circulating-part embedded type includes: a screw shaft having a helical thread groove on an outer peripheral surface thereof; a ball nut having a thread groove provided on an inner peripheral surface thereof in correspondence with the thread groove of the screw shaft, the screw shaft being loosely fitted in the inner peripheral surface of the ball nut; and a multiplicity of balls rotatably fitted between the two thread grooves and adapted to circulate while being guided by a ball-circulating part fitted in the ball nutwherein the ball nut has a retaining recess on an outer peripheral surface thereof, wherein at least a portion of a fitted outward surface of the ball-circulating part is substantially flush with the outer peripheral surface of the ball nut in a vicinity of the fitted outward surface of the ball-circulating part, and wherein there is provided a circulating-part holding member for fixing the ball-circulating part to the ball nut by being fitted over the outer peripheral surface of the ball nut and covering the fitted outward surface of the ball-circulating part, the circulating-part holding member having a projection for engaging the retaining recess of the ball nut.
摘要翻译：滚珠循环部嵌入式滚珠丝杠装置包括：在其外周面上具有螺旋形螺纹槽的螺杆轴; 具有与螺纹轴的螺纹槽对应的内周面上具有螺纹槽的滚珠螺母，螺纹轴松动地嵌合在滚珠螺母的内周面上; 以及多个滚珠，可旋转地装配在两个螺纹槽之间，并且适于在由安装在滚珠螺母中的滚珠循环部分引导的同时循环，其中滚珠螺母在其外周表面上具有保持凹部，其中至少一部分所述滚珠循环部的配合外表面在所述球循环部的配合外表面附近与所述滚珠螺母的外周面基本齐平，并且其中设置有用于通过装配在滚珠螺母的外周面上将滚珠循环部固定在滚珠螺母上并覆盖球循环部的嵌合外表面，该循环部保持部件具有用于与保持凹部接合的突出部球螺母。

16. 发明授权

US5809838A Ball screw device with means for maintaining balance 失效
标题翻译：滚珠丝杠装置，具有保持平衡的装置
公开(公告)号：US5809838A
公开(公告)日：1998-09-22
申请号：US874345
申请日：1997-06-13
申请人： Kazuo Miyaguchi , Daisuke Kuroiwa
发明人： Kazuo Miyaguchi , Daisuke Kuroiwa
IPC分类号： F16H25/22 , F16H57/04
CPC分类号： F16H25/2214 , F16H57/0497 , Y10T74/18744
摘要： In a ball screw device which provides a screw shaft including a ball screw groove in the outer peripheral surface, a ball nut including a ball screw groove formed in the inner peripheral surface opposite to the ball screw groove of the screw shaft, a plurality of balls fitted between the ball screw grooves of the screw shaft and ball nut, and a tube type circulation path for circulating these balls, the ball screw device can reduce the moment of inertia of a rotary portion of the device so as to facilitate the use of the ball screw device of a nut rotation type. Further, the ball screw device further provides an oil supplying structure which includes a first oil supplying hole formed in the outer race of the rolling bearing and passing through the outer race from the outer peripheral surface thereof to the inner peripheral surface thereof, and a second oil supplying hole formed in the ball nut, passing through the ball nut from the outer peripheral surface thereof to the inner peripheral surface thereof and also communicating with the first oil supplying hole through an annular gap. The oil supplying structure can supply oil even while the ball screw device is in operation, and eliminate the mounting and removal of an oil supplying pipe when supplying the oil.
摘要翻译：在提供包括外周面的滚珠丝杠槽的螺杆的滚珠丝杠装置中，具有形成在与螺杆轴的滚珠丝杠槽相反的内周面的滚珠丝杠槽的滚珠螺母，多个滚珠安装在螺杆轴的滚珠丝杠槽和滚珠螺母之间，以及用于使这些滚珠循环的管式循环路径，滚珠丝杠装置可以减少装置的旋转部分的转动惯量，以便于使用螺母旋转式滚珠丝杠装置。此外，滚珠丝杠装置还提供一种供油结构，该供油结构包括形成在滚动轴承的外圈中的第一供油孔，并从其外周表面到达其内周表面，并且第二供油结构在滚珠螺母中形成的供油孔，其从外周面通过滚珠螺母到其内周面，并且还通过环状间隙与第一供油孔连通。即使在滚珠丝杠装置运行时，供油结构也可以供给油，并且在供给油时不排除供油管的安装和拆卸。

17. 发明授权

US5697252A Preliminary thrusting mechanism for a screw device 失效
标题翻译：螺杆装置的初步推进机构
公开(公告)号：US5697252A
公开(公告)日：1997-12-16
申请号：US602276
申请日：1996-02-16
申请人： Toshiaki Yamaguchi , Kazuo Miyaguchi
发明人： Toshiaki Yamaguchi , Kazuo Miyaguchi
IPC分类号： F16H25/22 , F16H25/24
CPC分类号： F16H25/2209 , Y10T74/18728 , Y10T74/19707 , Y10T74/19902
摘要： A preliminary thrusting mechanism for a screw device serves to achieve not only constant position type preliminary thrusting but also constant pressure type preliminary thrusting. The preliminary thrusting mechanism includes as essential components a screw shaft having a spirally extending screw groove formed axially along the outer surface thereof, a first nut threadably engaged with the screw shaft, a second nut operatively connected to the first nut in series and threadably engaged with the screw shaft, a rotation stopping unit for preventing the second nut from being rotated relative to the first nut, a thrusting unit including a thrusting member adapted to impart to the first nut and the second nut a certain intensity of thrusting power effective in the opposite direction for allowing them to be displaced away from each other in the axial direction, and a stopping unit for preventing the thrusting member from being displaced further when the thrusting member is displaced by a predetermined distance. In practice, the thrusting unit includes a liquid pressure source, a liquid pressure supplying path and a pressure chamber, and the stopping unit includes flanges each serving to prevent further displacement of the thrusting member.
摘要翻译：用于螺杆装置的初步推进机构不仅用于实现恒定位置型初步推力，而且可实现恒压型初步推力。初步推压机构包括作为主要部件的螺杆轴，其具有沿着其外表面轴向形成的螺旋形螺旋槽，与螺纹轴螺纹接合的第一螺母，与第一螺母串联并螺纹接合的第二螺母所述螺杆轴，用于防止所述第二螺母相对于所述第一螺母旋转的旋转停止单元，包括推动构件的推动单元，所述推动构件适于赋予所述第一螺母和所述第二螺母一定强度的相反的推力用于允许它们在轴向上彼此远离的方向;以及止动单元，用于当推动构件偏移预定距离时防止推动构件进一步移位。在实践中，推力单元包括液压源，液压供给路径和压力室，并且止动单元包括用于防止推进构件进一步移位的凸缘。

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