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71. 发明授权

US06285104B1 Motor with reduced torque ripple 失效
标题翻译：电机具有减小的转矩波动
公开(公告)号：US06285104B1
公开(公告)日：2001-09-04
申请号：US09299008
申请日：1999-04-26
申请人： Masayuki Nashiki
发明人： Masayuki Nashiki
IPC分类号： H02K100
CPC分类号： H02K21/14 , H02K1/165 , H02K3/26 , H02K3/28 , H02K29/03 , H02K2201/06
摘要： A motor is constructed such that the amplitude of a current phasor of each of the slots on a stator when three-phase sinusoidal current is applied to each phase of the motor in a permanent magnet synchronous motor and reluctance motor. The number of windings of each phase looped through each of the slots is determined such that a phase of each current phasor of each of the slots is coincident with a phase in terms of electrical degrees in a direction of rotor rotation of each of the slots. A center position of each magnetic pole of a rotor steel plate is shifted to the direction of rotor rotation by slot pitch/NRR, 2×slot pitch/NRR, 3×slot pitch/NRR, . . . , 1-slot pitch against a position divided equally into 360°/NRR, where NRR is the number of poles. The stator and the rotor are relatively skewed by the slot pitch/ NRR.
摘要翻译：电动机被构造成使得当三相正弦电流施加到永磁同步电动机和磁阻电动机中的电动机的每相时，定子上的每个槽的电流相量的幅度。确定每个槽中循环的每相的绕组数量，使得每个槽的每个电流相量的相位与每个槽的转子旋转方向上的电度相位相一致。转子钢板的每个磁极的中心位置通过槽间距/ NRR，2x槽距/ NRR，3x槽间距/ NRR，向转子旋转方向移动。。。，相对于360°/ NRR等分的位置的1槽间距，其中NRR是极数。定子和转子相对于槽间距/ NRR倾斜。

72. 发明授权

US6144132A Permanent magnet motor 有权
标题翻译：永磁电机
公开(公告)号：US6144132A
公开(公告)日：2000-11-07
申请号：US359800
申请日：1999-07-26
申请人： Masayuki Nashiki
发明人： Masayuki Nashiki
IPC分类号： H02K29/00 , H02K1/27 , H02K21/16 , H02K37/00 , H02K1/22 , H02K21/00 , H02K21/12 , H02K23/04
CPC分类号： H02K1/2773 , H02K1/2713 , H02K21/16 , H02K2201/06
摘要： A permanent magnet motor is provided comprising a plurality of individual permanent magnets 7 threaded inside of a rotor, an N pole magnetic circuit commonly connected to N poles of the plurality of individual permanent magnets 7, an S pole magnetic circuit commonly connected to S poles of the plurality of individual permanent magnets 7, a plurality of N pole magnetic poles 5 positioned on the rotor surface, the N pole magnetic poles 5 being a part of the N pole magnetic circuit, and a plurality of S pole magnetic poles 6 positioned alternately with the N pole magnetic poles 5 in the rotational direction of the rotor, the S pole magnetic poles 6 being a part of the S pole magnetic circuit, wherein the change rate of the rotation of flux linked to the stator winding is increased to output a large torque.
摘要翻译：提供一种永磁电动机，其包括多个单独的永磁体7，其旋转在内部，通常连接到多个单独永磁体7的N极的N极磁路，S极磁路，多个单独的永磁体7，位于转子表面上的多个N极磁极5，N极磁极5是N极磁路的一部分，以及与S极磁极6交替配置的多个S极磁极6， N极磁极5在转子的旋转方向上，S极磁极6是S极磁路的一部分，其中与定子绕组相关联的磁通的旋转的变化率增加以输出大的扭矩。

73. 发明授权

US5820272A Bearing structure for a rotating shaft 失效
标题翻译：旋转轴的轴承结构
公开(公告)号：US5820272A
公开(公告)日：1998-10-13
申请号：US810158
申请日：1997-02-26
申请人： Masayuki Nashiki , Yoshiki Ohtake
发明人： Masayuki Nashiki , Yoshiki Ohtake
IPC分类号： B23Q11/00 , F16C19/18 , F16C19/54 , F16C19/56 , F16C19/04 , F16C17/22
CPC分类号： F16C19/54 , B23Q11/0003 , F16C19/181 , F16C2240/80 , F16C2322/39
摘要： An angular contact bearing (100) has a plurality of first and second rolling elements (1,2) interposed between a rotating shaft (3) and a fixed part (4). An outer ring (5) is secured to the fixed part (4). Formed on the inner periphery of the outer ring (5) is a first rolling contact surface (1a) which is in contact with the first rolling elements (1) on the fixed part side at a predetermined angle. An inner ring (8) is secured to the rotating shaft (3) by nuts (9). Formed on the outer periphery of the inner ring (8) is a second rolling contact surface (1b) which is in contact with the first rolling elements (1) on the rotating shaft side at a predetermined angle. Formed on its inner periphery is a third rolling contact surface (2a) which is in contact with the second rolling elements (2) on the fixed part side at a predetermined angle. An Angular member (6) is secured to the outer ring (5). The Angular member (6) has a fourth rolling contact surface (2b) formed on its inner periphery. The fourth rolling contact surface (2b) is in contact with each second rolling elements (1) on the rotating shaft side at a predetermined angle. The angle at which the first and second rolling elements (1,2) are in contact with the first to fourth rolling contact surfaces (1a, 1b, 2a, and 2c) is set so that, as the temperature of the rotating shaft (3) rises, the shaft (3) itself is displaced to the direction opposite to that of the thermal displacement of a tool (22) attached to the rotating shaft (3).
摘要翻译：角接触轴承（100）具有插入在旋转轴（3）和固定部（4）之间的多个第一和第二滚动元件（1,2）。外环（5）固定在固定部分（4）上。在外圈（5）的内周面上形成有以规定角度与固定部侧的第一滚动体（1）接触的第一滚动面（1a）。内圈（8）用螺母（9）固定在旋转轴（3）上。在内圈（8）的外周形成有以规定角度与旋转轴侧的第一滚动体（1）接触的第二滚动面（1b）。在其内周面上形成有第三滚动接触面（2a），该第三滚动接触面以固定部分侧与预定角度的第二滚动体（2）接触。角部件（6）固定在外圈（5）上。角部件（6）的内周形成有第四滚动面（2b）。第四滚动接触面（2b）以规定角度与旋转轴侧的各第二滚动体（1）接触。第一和第二滚动体（1,2）与第一〜第四滚动面（1a，1b，2a，2c）接触的角度被设定为：作为旋转轴（3）的温度）升高时，轴（3）本身移动到与安装在旋转轴（3）上的工具（22）的热位移相反的方向。

74. 发明授权

US5793139A Electric motor having stator's salient poles of the stator slightly shifted from salient poles of the rotor 失效
标题翻译：具有定子的定子极极的电动机从转子的凸极稍微偏移
公开(公告)号：US5793139A
公开(公告)日：1998-08-11
申请号：US520088
申请日：1995-08-28
申请人： Masayuki Nashiki
发明人： Masayuki Nashiki
IPC分类号： H02K1/08 , H02K3/28 , H02K19/10 , H02K19/36 , H02K29/03 , H02K1/00
CPC分类号： H02K19/103 , H02K19/36 , H02K1/08 , H02K29/03 , H02K3/28
摘要： An electric motor generates a large torque despite its small size, causes small torque ripples, and is able to perform field-weakening control when the number of revolutions is large. The electric motor comprises a stator having m portions where large magnetic resistance and small magnetic resistance exist in the radial direction around the entire circumference, and a rotor having n portions where large magnetic resistance and small magnetic resistance exist in the radial direction around the entire circumference. The value .vertline.m-n.vertline. is an integer less than 3, m and n are large numbers. The stator is provided with two-pole, multi-phase stator windings. The structure such that the salient poles of the stator and rotor are shifted slightly from each other enables the motor to generate large torque and cause only small torque ripples.
摘要翻译：尽管电动机尺寸小，电动机产生大的转矩，产生小的转矩波动，并且当转数大时能够进行弱磁控制。该电动机包括具有m个部分的定子，该部分具有在整个圆周的径向方向上存在大的磁阻和小的磁阻，并且在整个圆周的径向上存在具有大的磁阻和小的磁阻的n个部分的转子。值| m-n | 是小于3的整数，m和n是大数。定子设有两极多相定子绕组。使得定子和转子的凸极彼此稍微偏移的结构使得电动机能够产生大的转矩并且仅产生小的转矩波动。

75. 发明授权

US5097161A Linear actuator 失效
标题翻译：线性执行机构
公开(公告)号：US5097161A
公开(公告)日：1992-03-17
申请号：US429367
申请日：1989-10-31
申请人： Masayuki Nashiki , Seiichi Iwasaka
发明人： Masayuki Nashiki , Seiichi Iwasaka
IPC分类号： H02K33/02 , H01L41/09 , H02N2/00 , H02P25/06
CPC分类号： H02N2/021
摘要： A linear attuator of the present invention performs the fixing of a driving base by the primary fine means when the deflection of the moving velocity of the driving base in a driven direction and the moving velocity of the primary fine means driven by the secondary fine means in the driven direction becomes less than or equal to a specified allowable value, i.e., when the relating velocity becomes nearly zero, and moves the primary fine means driven by the secondary fine means in the direction opposite to that of the driven direction after not transferring the driving force of the secondary fine means to the driving base when the driving base is separated from the primary fine means. Thus, the driving base can be driven by a stroke longer than the driving stroke of the fine actuator itself at a specific velocity and it can be driven smoothly.
摘要翻译：本发明的直线导轨机构在驱动基座的驱动方向上的移动速度的偏移和由二次精细机构驱动的一次细小机构的移动速度变化时，通过一次微型机构进行驱动基座的固定驱动方向变得小于或等于规定的允许值，即，当相关速度变为接近零时，并且在不转移第二精细装置之后，使与辅助精细装置驱动的一次精细装置沿与驱动方向相反的方向移动当驱动基座与初级精细装置分离时，次级精细装置的驱动力到驱动基座。因此，驱动基座能够以比特定速度的精细致动器本身的驱动行程长的行程驱动，并且能够平稳地驱动。

76. 发明授权

US5047702A Synchronous control method and apparatus therefor 失效
标题翻译：同步控制方法及其装置
公开(公告)号：US5047702A
公开(公告)日：1991-09-10
申请号：US513818
申请日：1990-04-25
申请人： Yoshimaro Hanaki , Masayuki Nashiki
发明人： Yoshimaro Hanaki , Masayuki Nashiki
IPC分类号： B23Q15/00 , G05B19/416 , H02P5/52
CPC分类号： G05B19/416 , G05B2219/45124 , G05B2219/50216
摘要： During synchronous control, a first servo motor controls a position of a first spindle system and a second spindle system having a second servo motor makes calculations for estimating the torque required for the second servo motor and gives a command, so that, when a rotational phase difference between the two servo motors exceeds a predetermined value, the rotational phase difference is made equal to zero by a rotational phase difference signal. A torque command to the first servo motor, an inertia ratio between the first and second servo motors, the rotational resistance of the two spindle systems and so on are input to a torque estimator which makes calculations for estimating the torque required for the second servo motor. The estimated torque is used to control the second servo motor. The two servo motors thus generate the appropriate torque when a work held between the two spindle systems is processed. It is therefore possible to significantly reduce the torsional torque applied to the work. In addition, since the rotational phase difference between the two servo motors of two spindle systems is reduced, synchronous control with high precision can be effected even if the work has a low rigidity.
摘要翻译：在同步控制期间，第一伺服电动机控制第一主轴系统的位置，并且具有第二伺服电动机的第二主轴系统进行计算以估计第二伺服电动机所需的转矩并给出命令，使得当旋转相位两个伺服电动机之间的差超过预定值，通过旋转相位差信号使旋转相位差等于零。向第一伺服电动机的转矩指令，第一伺服电动机和第二伺服电动机之间的惯量比，两个主轴系统的旋转阻力等输入到转矩估计器，该估计器进行用于估计第二伺服电动机所需的转矩的计算。估计转矩用于控制第二伺服电机。因此，当处理两个主轴系统之间的工件时，两个伺服电动机产生适当的转矩。因此，可以显着地减小施加到工件上的扭矩。此外，由于两个主轴系统的两个伺服电动机之间的旋转相位差减小，即使工作刚度低，也能够实现高精度的同步控制。

77. 发明授权

US4983900A Linear encoder with plural detectors for use with one or more main scales 失效
标题翻译：具有多个检测器的线性编码器，用于一个或多个主秤
公开(公告)号：US4983900A
公开(公告)日：1991-01-08
申请号：US401057
申请日：1989-08-31
申请人： Masayuki Nashiki , Keiji Matsui , Atushi Ieki
发明人： Masayuki Nashiki , Keiji Matsui , Atushi Ieki
IPC分类号： G01B21/00 , G01B7/02 , G01D5/244 , G01D5/245
CPC分类号： G01B7/02 , G01D5/2451
摘要： A linear encoder has a plurality short main scales arranged separately in their longitudinal direction and plural sliders situated in parallel with the longitudinal direction so as to more along these main scales. In operation, data obtained through these sliders are joined and processed in a signal processor in order to get position data of a table. Consequently, any position along a long movement stroke of the table can be detected easily and at a low cost.
摘要翻译：线性编码器具有沿其长度方向分开设置的多个短的主标尺和与长度方向平行放置的多个滑块，以便沿着这些主尺度。在操作中，通过这些滑块获得的数据在信号处理器中被接合和处理，以获得表的位置数据。因此，可以容易且低成本地检测沿桌子的长移动行程的任何位置。

78. 发明授权

US4743825A Synchronous motors and a control system thereof 失效
标题翻译：同步电动机及其控制系统
公开(公告)号：US4743825A
公开(公告)日：1988-05-10
申请号：US935188
申请日：1986-11-26
申请人： Masayuki Nashiki
发明人： Masayuki Nashiki
IPC分类号： H02K19/10 , H02K29/06 , H02P25/02 , H02P5/40
CPC分类号： H02K19/103 , H02K29/06 , H02P25/024
摘要： In the prior art, a DC motor is often utilized for controlling speed of servomechanism for its simpleness in operation and excellent control. However, as a DC motor is equipped with brushes and commutators, it inconveniently requires periodical maintenance and inspections in order to keep normal operation. As electric semiconductors such as power transistors along with control technology have made a remarkable progress in recent years, a demand for motors which do not need maintenance is keenly felt. Studies have been conducted on control by DC motors and some have been put into practice. According to this invention, there is provided a synchronous motor which has a small field loss and which does not need slip rings or rotary transformers. Further, there is provided synchronous motor which can be simply constructed at a low cost without using a permanent magnet as a rotor and which can realize a larger capacity, and provided a control unit for the synchronous motor.
摘要翻译：在现有技术中，直流电动机通常用于控制伺服机构的速度，因为其简单的操作和优异的控制。然而，由于直流电动机配备有电刷和换向器，因此不方便地进行定期维护和检查以保持正常运行。随着电力半导体如功率晶体管以及控制技术的发展，近年来取得了显着的进步，对于不需要维护的电机的需求十分敏锐。已经对直流电机的控制进行了研究，有些已经付诸实践。根据本发明，提供了一种具有小的场损耗并且不需要滑环或旋转变压器的同步电动机。此外，提供了可以简单地以低成本构造的同步电动机，而不使用永磁体作为转子并且可以实现更大的容量，并且提供了用于同步电动机的控制单元。

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