公开(公告)号：US20110138947A1

公开(公告)日：2011-06-16

申请号：US12965043

申请日：2010-12-10

申请人： Koji Nakatake ,  Kazuyuki Kitazawa ,  Shigenori Miyairi

发明人： Koji Nakatake ,  Kazuyuki Kitazawa ,  Shigenori Miyairi

IPC分类号： F16H25/22

CPC分类号： F16H25/2209 ,  F16H25/2454 ,  F16H2025/2078 ,  H02K7/06 ,  Y10T74/18576 ,  Y10T74/18664 ,  Y10T74/18728 ,  Y10T74/19744 ,  Y10T74/19749

摘要： A linear actuator that does not require a high assembly precision is provided. A linear actuator includes a motor portion including a rotary shaft, a rotor, and a stator, a first bearing portion that supports a first end of the rotary shaft, a locknut threadably engaged on the first end of the rotary shaft, and a ball screw mechanism including a ball screw nut screwed to the locknut and a ball screw threadably engaged with the ball screw nut. Gaps formed between an outer peripheral portion of the rotary shaft and an inner peripheral portion of the locknut, except a male thread portion formed on the rotary shaft and a female thread portion formed on the locknut threadably engaged with each other, are defined to have respective predetermined sizes.

摘要翻译： 提供了不需要高组装精度的线性致动器。 线性致动器包括：电动机部分，包括旋转轴，转子和定子;支撑旋转轴的第一端的第一轴承部分，与旋转轴的第一端螺纹接合的锁紧螺母;以及滚珠丝杠 机构，包括螺母连接在锁紧螺母上的滚珠丝杠螺母和与滚珠丝杠螺母螺纹接合的滚珠丝杠。 形成在旋转轴的外周部和锁紧螺母的内周部之间的间隙除了形成在旋转轴上的外螺纹部分和形成在与螺纹接合的锁紧螺母上的阴螺纹部分之外，还被限定为具有相应的 预定尺寸。

公开(公告)号：US08770052B2

公开(公告)日：2014-07-08

申请号：US12965043

申请日：2010-12-10

申请人： Koji Nakatake ,  Kazuyuki Kitazawa ,  Shigenori Miyairi

发明人： Koji Nakatake ,  Kazuyuki Kitazawa ,  Shigenori Miyairi

IPC分类号： F16H29/00 ,  F16H25/20 ,  F16H25/22

CPC分类号： F16H25/2209 ,  F16H25/2454 ,  F16H2025/2078 ,  H02K7/06 ,  Y10T74/18576 ,  Y10T74/18664 ,  Y10T74/18728 ,  Y10T74/19744 ,  Y10T74/19749

摘要： A linear actuator that does not require a high assembly precision is provided. A linear actuator includes a motor portion including a rotary shaft, a rotor, and a stator, a first bearing portion that supports a first end of the rotary shaft, a locknut threadably engaged on the first end of the rotary shaft, and a ball screw mechanism including a ball screw nut screwed to the locknut and a ball screw threadably engaged with the ball screw nut. Gaps formed between an outer peripheral portion of the rotary shaft and an inner peripheral portion of the locknut, except a male thread portion formed on the rotary shaft and a female thread portion formed on the locknut threadably engaged with each other, are defined to have respective predetermined sizes.

摘要翻译： 提供了不需要高组装精度的线性致动器。 线性致动器包括：电动机部分，包括旋转轴，转子和定子;支撑旋转轴的第一端的第一轴承部分，与旋转轴的第一端螺纹接合的锁紧螺母;以及滚珠丝杠 机构，包括螺母连接在锁紧螺母上的滚珠丝杠螺母和与滚珠丝杠螺母螺纹接合的滚珠丝杠。 形成在旋转轴的外周部和锁紧螺母的内周部之间的间隙除了形成在旋转轴上的外螺纹部分和形成在与螺纹接合的锁紧螺母上的阴螺纹部分之外，还被限定为具有相应的 预定尺寸。

公开(公告)号：US6081051A

公开(公告)日：2000-06-27

申请号：US212030

申请日：1998-12-15

申请人： Kazuyuki Kitazawa ,  Hiroshi Ooki ,  Yutaka Takeuchi ,  Shigeto Murata

发明人： Kazuyuki Kitazawa ,  Hiroshi Ooki ,  Yutaka Takeuchi ,  Shigeto Murata

IPC分类号： H02K7/06

CPC分类号： H02K7/06

摘要： A linear/rotary actuator capable of carrying out both linear motion and rotary motion either individually or concurrently as desired while controlling both motions as desired. A rotary driving motor includes a hollow shaft. When the rotary driving motor rotates a third nut fitted on a spline section of the rotary driving motor, an output shaft rotatably fitted on a linear shaft through bearings is rotated. The linear shaft 21 is provided thereon with a threaded section. A spline section and a first nut is threadedly fitted on the threaded section and a second nut kept stationary is fitted on the spline section. The first nut is rotated while being fixed in a hollow shaft of a linear driving motor. Rotation of the linear driving motor leads to rotation of the first nut, resulting in the linear shaft 21 being linearly moved in an axial direction thereof, so that the output shaft may be linearly moved.

摘要翻译： 一种线性/旋转致动器，其能够根据需要单独地或同时地执行线性运动和旋转运动，同时根据需要控制两个运动。 旋转驱动电动机包括中空轴。 当旋转驱动电机旋转安装在旋转驱动电机的花键部分上的第三螺母时，通过轴承可旋转地装配在直线轴上的输出轴旋转。 直线轴21设置有螺纹部。 花键部分和第一螺母螺纹地安装在螺纹部分上，并且保持静止的第二螺母安装在花键部分上。 第一螺母在固定在线性驱动电动机的中空轴中的同时旋转。 线性驱动电动机的旋转导致第一螺母的旋转，导致直线轴21沿其轴向线性移动，使得输出轴可以线性移动。

公开(公告)号：US07560844B2

公开(公告)日：2009-07-14

申请号：US11388697

申请日：2006-03-24

申请人： Toshihito Miyashita ,  Satoru Onodera ,  Kazuyuki Kitazawa ,  Masahiro Koyama ,  Kazuhiko Takizawa

发明人： Toshihito Miyashita ,  Satoru Onodera ,  Kazuyuki Kitazawa ,  Masahiro Koyama ,  Kazuhiko Takizawa

IPC分类号： H02K1/00 ,  H02K3/48

CPC分类号： H02K29/03

摘要： A permanent magnet rotary motor is provided in which cogging torque can be reduced and an increase in copper loss can also be prevented. A first divided core unit 13 is combined with a second divided core unit 15, thereby constituting a stator core 9. The first divided core unit 13 constitutes a yoke portion 17. The second divided core unit 15 includes pole pieces 25, magnetic pole surface constituent portions 27, and first and second type connecting portions 29A and 29B each mutually couple two adjacent magnetic pole surface constituent portions 27, all of which are formed integral with one another. The thickness of the first type connecting portions 29A in a radial direction of the stator core 9 is set to be smaller than the thickness of the second type connecting portions 29B in the radial direction of the stator core 9.

摘要翻译： 提供一种能够减小齿槽转矩并且还能够防止铜损的增加的永久磁铁旋转电动机。 第一分割铁心单元13与第二分割铁芯单元15组合，从而构成定子铁芯9.第一分体铁芯单元13构成磁轭部17.第二分压芯单元15包括磁极片25，磁极表面成分 部分27以及第一和第二类型连接部分29A和29B各自相互耦合两个彼此成一体的相邻的磁极表面组成部分27。 第一型连接部29A在定子铁芯9的径向上的厚度被设定为小于第二型连接部29B在定子铁心9的径向的厚度。

公开(公告)号：US20060214533A1

公开(公告)日：2006-09-28

申请号：US11388697

申请日：2006-03-24

申请人： Toshihito Miyashita ,  Satoru Onodera ,  Kazuyuki Kitazawa ,  Masahiro Koyama ,  Kazuhiko Takizawa

发明人： Toshihito Miyashita ,  Satoru Onodera ,  Kazuyuki Kitazawa ,  Masahiro Koyama ,  Kazuhiko Takizawa

IPC分类号： H02K1/00 ,  H02K3/48

CPC分类号： H02K29/03

摘要： A permanent magnet rotary motor is provided in which cogging torque can be reduced and an increase in copper loss can also be prevented. A first divided core unit 13 is combined with a second divided core unit 15, thereby constituting a stator core 9. The first divided core unit 13 constitutes a yoke portion 17. The second divided core unit 15 includes pole pieces 25, magnetic pole surface constituent portions 27, and first and second type connecting portions 29A and 29B each mutually couple two adjacent magnetic pole surface constituent portions 27, all of which are formed integral with one another. The thickness of the first type connecting portions 29A in a radial direction of the stator core 9 is set to be smaller than the thickness of the second type connecting portions 29B in the radial direction of the stator core 9.

摘要翻译： 提供一种能够减小齿槽转矩并且还能够防止铜损的增加的永久磁铁旋转电动机。 第一分割铁心单元13与第二分割铁芯单元15组合，从而构成定子铁芯9.第一分体铁芯单元13构成磁轭部17.第二分压芯单元15包括磁极片25，磁极表面成分 部分27以及第一和第二类型连接部分29A和29B各自相互耦合两个相邻的磁极表面构成部分27，它们都彼此一体地形成。 第一类型连接部分29A在定子铁心9的径向上的厚度被设定为小于第二类型连接部分29B在定子铁芯9的径向方向上的厚度。

公开(公告)号：US06433447B1

公开(公告)日：2002-08-13

申请号：US09676833

申请日：2000-09-29

申请人： Kazuyuki Kitazawa ,  Yutaka Takeuchi

发明人： Kazuyuki Kitazawa ,  Yutaka Takeuchi

IPC分类号： H02K4100

CPC分类号： H02K41/031 ,  H02K7/06 ,  H02K7/20 ,  H02K16/00 ,  H02K2201/18

摘要： A linear/rotary actuator capable of carrying out linear motion at a high speed. A linear motor is used as a linear driving motor. The linear motor has a linear shaft connected to an output shaft of a rotary driving motor through an intermediate bearing structure. The output shaft of the rotary driving motor is provided with a forward spline section. A nut fitted on the forward spline section is fixed in a revolving shaft supported on a forward bearing structure. The output shaft is formed on a rearward portion thereof with a rearward spline section. The portion of the output shaft on which the rearward spline section is formed is slidably and rotatably supported.

摘要翻译： 能够高速进行线性运动的线性/旋转式致动器。 线性电动机用作线性驱动电动机。 线性马达具有通过中间轴承结构连接到旋转驱动马达的输出轴的直线轴。 旋转驱动电动机的输出轴设置有前花键部。 安装在前花键部上的螺母固定在支撑在前轴承结构上的旋转轴中。 输出轴在其后部形成有后花键部。 输出轴的形成有后花键部的部分可滑动地且可旋转地支撑。

公开(公告)号：US06329728B1

公开(公告)日：2001-12-11

申请号：US09520741

申请日：2000-03-08

申请人： Kazuyuki Kitazawa ,  Nobuji Suzuki ,  Kazuhiko Takizawa

发明人： Kazuyuki Kitazawa ,  Nobuji Suzuki ,  Kazuhiko Takizawa

IPC分类号： H03K403

CPC分类号： H02K41/03

摘要： A cylinder-type linear synchronous motor including a stator of which assembling is facilitated. A movable element is constructed by fitting annular permanent magnets on a magnet mount 29 fixed on a direct-acting shaft so that N and S poles are alternately arranged in an axial direction thereof. A plurality of stator core units 35 fixed in a frame so as to be spaced from each other at equal intervals in a peripheral direction of the movable element. The stator core units each constituted by combining a plurality of stator core divisions with each other. Exciting windings each are constituted of an annular winding formed by annularly winding a conductive wire so as to surround the movable element in the peripheral direction thereof. The annular windings each are fitted at a part thereof in a slot formed between each axially adjacent two of magnetic pole sections of the stator core units.

摘要翻译： 一种圆筒型线性同步电动机，其包括便于组装的定子。 通过将环形永久磁铁安装在固定在直动轴上的磁铁座29上，使N，S极的轴向交替配置，构成可动元件。 多个定子铁芯单元35固定在框架中，以便在可移动元件的周向方向上以相等的间隔彼此间隔开。 所述定子铁心单元各自由将多个定子铁心分割组合而构成。 励磁绕组各自由环形绕组构成，环形绕组是通过环形地缠绕导电线而围绕可动元件在其周向上包围的。 每个环形绕组的一部分安装在形成在定子铁芯单元的每个轴向相邻的两个磁极部分之间的槽中。