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1. 发明授权

US06371650B1 Hydraulic dynamic bearing and spindle motor and rotary assembly provided 失效
标题翻译：提供液压动力轴承和主轴电机和旋转组件
公开(公告)号：US06371650B1
公开(公告)日：2002-04-16
申请号：US09414244
申请日：1999-10-07
申请人： Hiromitsu Goto , Isamu Takehara , Yukihiro Nakayama , Ryouji Yoneyama , Takafumi Suzuki , Toshiharu Kogure , Tadao Iwaki , Naoki Kawawada , Atsushi Ota , Koji Nitadori
发明人： Hiromitsu Goto , Isamu Takehara , Yukihiro Nakayama , Ryouji Yoneyama , Takafumi Suzuki , Toshiharu Kogure , Tadao Iwaki , Naoki Kawawada , Atsushi Ota , Koji Nitadori
IPC分类号： F16C3206
CPC分类号： F16C33/74 , F16C17/107 , F16C33/103 , F16C33/107 , F16C2370/12 , G11B19/2009
摘要： A double sleeve type dynamic bearing comprises a fixed shaft having at least one end fixedly mountable to an apparatus in which the bearing is utilized, a rotary sleeve arranged coaxially with the fixed shaft so that a first fine gap is formed therebetween, a fixed sleeve arranged coaxially with the rotary sleeve so that a second fine gap is formed therebetween, and a lubrication oil filled in the fine gaps. The first fine gap and the second fine gap each have an open end exposed to air outside the bearing and an opposite end that is not exposed to the air, the opposite ends being in communication with each other. A holding member holds the fixed shaft and the fixed sleeve and is disposed adjacent to a lower end surface of the rotary sleeve to form a third fine gap between the holding member and the lower end surface of the rotary sleeve. The third fine gap is formed with a thrust dynamic pressure producing groove, and opposite ends of the first and second fine gaps meet each other through the third fine gap. A peripheral surface of at least one of the fixed shaft, the rotary sleeve and the fixed sleeve forming at least one of the first and second fine gaps has a dynamic pressure producing groove formed therein.
摘要翻译：一种双套筒式动态轴承，包括固定轴，该固定轴具有固定地安装到使用轴承的装置的至少一个端部，与固定轴同轴设置的旋转套筒，使得在其间形成有第一细小间隙，固定套筒布置与旋转套筒同轴，从而在它们之间形成第二细微间隙，并且填充有细小间隙的润滑油。第一细间隙和第二细间隙各自具有暴露于轴承外部的空气的开口端和不暴露于空气的相对端，相对端彼此连通。保持构件保持固定轴和固定套筒并且邻近旋转套筒的下端表面设置，以在保持构件和旋转套筒的下端表面之间形成第三细微间隙。第三细间隙由推力动压产生槽形成，第一和第二细缝的相对端通过第三细间隙相互相交。固定轴，旋转套筒和形成第一和第二细小间隙中的至少一个的固定套筒中的至少一个的周面具有形成在其中的动压产生槽。

2. 发明授权

US06371649B1 Method for lubricating a fluid dynamic pressure bearing 失效
标题翻译：润滑流体动压轴承的方法
公开(公告)号：US06371649B1
公开(公告)日：2002-04-16
申请号：US09420172
申请日：1999-10-18
申请人： Naoki Kawawada , Tadao Iwaki , Atsushi Ota , Koji Nitadori , Toshiharu Kogure , Hiromitsu Goto , Isamu Takehara , Yukihiro Nakayama , Ryoji Yoneyama , Takahumi Suzuki
发明人： Naoki Kawawada , Tadao Iwaki , Atsushi Ota , Koji Nitadori , Toshiharu Kogure , Hiromitsu Goto , Isamu Takehara , Yukihiro Nakayama , Ryoji Yoneyama , Takahumi Suzuki
IPC分类号： F16C1710
CPC分类号： F16C33/1025 , B60K6/365 , B60K6/445 , B60W10/06 , B60W10/08 , B60W10/26 , B60W20/00 , F16C33/10 , F16C33/107 , F16N2210/14 , H02K15/14 , Y02T10/6239 , Y02T10/6286 , Y10S903/903 , Y10S903/91
摘要： A method for lubricating a part without leaving air bubbles includes the steps of assembling components so that an open end is formed for application of lubricating fluid and a fluid path is provided through which the lubricating fluid is to be circulated, introducing the lubricating fluid into the open end and applying a centrifugal force to the component by moving the component about a circular path so that the centrifugal force causes the lubricating fluid to be urged throughout the fluid path. The method is used in an embodiment to lubricate a dynamic pressure bearing having a gap between relatively moving parts. The gap has an open end into which the lubrication fluid is dripped and a closed end. During movement of the bearing about a circular path, the fluid is urged from the open end to the closed end.
摘要翻译：用于在不留下气泡的情况下润滑部件的方法包括组装部件的步骤，以形成用于施加润滑流体的开口端，并且提供流体路径，通过该流体路径润滑流体将被循环，将润滑流体引入到开口端并通过围绕圆形路径移动部件而向组件施加离心力，使得离心力使润滑流体在整个流体路径中被推动。在一个实施例中使用该方法来润滑在相对运动部件之间具有间隙的动压轴承。间隙具有打开的端部，润滑液滴入其中并且封闭的端部。在轴承围绕圆形路径移动期间，流体从开口端向封闭端被推动。

3. 发明授权

US06354742B1 Hydraulic dynamic bearing and spindle motor 有权
标题翻译：液压动力轴承和主轴电机
公开(公告)号：US06354742B1
公开(公告)日：2002-03-12
申请号：US09535376
申请日：2000-03-24
申请人： Tadao Iwaki , Shigeru Ohki , Naoki Kawawada , Atsushi Ohta , Koji Nitadori , Isamu Takehara , Hiromitsu Goto , Takafumi Suzuki
发明人： Tadao Iwaki , Shigeru Ohki , Naoki Kawawada , Atsushi Ohta , Koji Nitadori , Isamu Takehara , Hiromitsu Goto , Takafumi Suzuki
IPC分类号： F16C3206
CPC分类号： F16C33/107 , F16C17/107 , F16C2370/12 , G11B19/2009 , H02K5/1675
摘要： In order to alleviate mutual interference between axial dynamic pressure portions and a radial dynamic pressure portion in a ring-like hydraulic dynamic pressure bearing, in the case of a ring-like hydraulic dynamic pressure bearing 1 constituted by supporting a shaft portion 4 constituted by fixing a ring 3 to an end portion 2A of a shaft main body 2 by a bearing portion 5, ring-like spaces 8 and 9 for storing lubricant for generating dynamic pressure are provided along contiguous portions of the radial dynamic pressure bearing portion and the axial dynamic pressure bearing portions formed between the ring 3 and the bearing portion 5, and the ring-like spaces 8 and 9 are maintained at atmospheric pressure via paths formed at the bearing portion 5 to thereby prevent negative pressure from generating at boundary regions of the two dynamic pressure bearing portions.
摘要翻译：为了减轻环状液压动压轴承中的轴向动压部和径向动压部之间的相互干扰，在环状液压动压轴承1的情况下，通过将由固定构成的轴部4 通过轴承部分5将轴3连接到轴主体2的端部2A，在径向动压轴承部分和轴向动力学的连续部分设置有用于产生动压的用于存储润滑剂的环形空间8和9 形成在环3与轴承部5之间的压力轴承部以及环状空间8,9通过形成于轴承部5的路径而保持在大气压下，从而防止在两个动态的边界区域产生负压承压部。

4. 发明授权

US06307291B1 Hydraulic dynamic bearing and spindle motor and rotary assembly provided 有权
标题翻译：提供液压动力轴承和主轴电机和旋转组件
公开(公告)号：US06307291B1
公开(公告)日：2001-10-23
申请号：US09414243
申请日：1999-10-07
申请人： Tadao Iwaki , Isamu Takehara , Yukihiro Nakayama , Ryouji Yoneyama , Takafumi Suzuki , Toshiharu Kogure , Hiromitsu Goto , Naoki Kawawada , Atsushi Ota , Koji Nitadori
发明人： Tadao Iwaki , Isamu Takehara , Yukihiro Nakayama , Ryouji Yoneyama , Takafumi Suzuki , Toshiharu Kogure , Hiromitsu Goto , Naoki Kawawada , Atsushi Ota , Koji Nitadori
IPC分类号： H02K516
CPC分类号： F16C33/107 , F16C17/045 , F16C17/107 , F16C2370/12 , G11B19/2009 , H02K5/1677 , H02K7/086
摘要： The present invention is a double sleeve type fluid dynamic pressure bearing, comprising a fixed shaft having respective ends to be fixed to a utilized apparatus; a rotary sleeve arranged to provide a first fine gap between an inner peripheral surface thereof and an outer peripheral surface of the fixed shaft, a fixed sleeve arranged to provide a second fine gap between an inner peripheral surface thereof and an outer peripheral surface of the rotary sleeve, a holder member arranged to cooperate with a lower end surface of the rotary sleeve to provide a third gap, and wherein the first fine gap and the second fine gap are formed with radial dynamic pressure producing grooves while the third fine gap is formed with a thrust dynamic pressure producing groove, the first, second and third fine gaps being filled with lubrication oil, the first fine gap and the second fine gap having one ends made as opening ends contacting with the air and the other ends made as closed ends communicated with each other through the third fine gap.
摘要翻译：本发明是一种双套筒式流体动压轴承，其特征在于，包括一固定轴，该固定轴具有固定在所使用的装置上的各自端部; 旋转套筒，其布置成在其内周表面和固定轴的外周表面之间提供第一细微间隙;固定套筒，其布置成在其内周表面和旋转体的外周表面之间提供第二细微间隙套筒，配置成与旋转套筒的下端面协作以提供第三间隙的保持器构件，并且其中第一细间隙和第二细间隙形成有径向动压产生槽，而第三细间隙形成有推力动压产生槽，第一，第二和第三细间隙填充有润滑油，第一细间隙和第二细间隙具有一端，其开口端与空气接触，另一端形成为封闭端连通相互通过第三个细微差距。

5. 发明授权

US06247848B1 Hydraulic dynamic bearing and spindle motor utilizing hydraulic dynamic bearing 有权
标题翻译：液压动力轴承和主轴电机采用液压动力轴承
公开(公告)号：US06247848B1
公开(公告)日：2001-06-19
申请号：US09535377
申请日：2000-03-24
申请人： Tadao Iwaki , Shigeru Ohki , Naoki Kawawada , Atsushi Ohta , Koji Nitadori , Isamu Takehara , Hiromitsu Goto , Takafumi Suzuki
发明人： Tadao Iwaki , Shigeru Ohki , Naoki Kawawada , Atsushi Ohta , Koji Nitadori , Isamu Takehara , Hiromitsu Goto , Takafumi Suzuki
IPC分类号： F16C1710
CPC分类号： F16C33/107 , F16C17/107 , F16C33/103 , F16C33/74
摘要： A hydraulic dynamic bearing has a rotational assembly and a bearing member for rotationally supporting the rotational assembly. The bearing member has a main body having a recess portion and a cover for covering an open end of the recess portion. The rotational assembly has a shaft main body having an end portion extending into the recess of the bearing main body for undergoing rotation relative thereto and a ring member disposed in the recess of the bearing main body. The ring member is connected to the end portion of the shaft main body for rotation therewith. Axial dynamic pressure generating grooves are formed in upper and lower surface portions of the ring member for generating axial dynamic pressure during rotation of the rotational assembly. Radial dynamic pressure generating grooves are formed in an outer peripheral surface portion of the ring member for generating radial dynamic pressure during rotation of the rotational assembly. Spaces are formed between the bearing member and the rotational assembly for storing a lubricant.
摘要翻译：液压动态轴承具有旋转组件和用于旋转地支撑旋转组件的支承构件。所述轴承构件具有主体，所述主体具有凹部和覆盖所述凹部的开口端的盖。旋转组件具有轴主体，其具有延伸到轴承主体的凹部中的端部，用于相对于其旋转，并且环构件设置在轴承主体的凹部中。环构件连接到轴主体的端部以与其一起旋转。轴向动压产生槽形成在环件的上表面和下表面部分中，用于在旋转组件转动期间产生轴向动压。径向动压产生槽形成在环件的外周表面部分中，用于在旋转组件旋转期间产生径向动压。在轴承构件和用于储存润滑剂的旋转组件之间形成空间。

6. 发明授权

US06984919B2 Control system for ultrasonic motor 失效
标题翻译：超声波电机控制系统
公开(公告)号：US06984919B2
公开(公告)日：2006-01-10
申请号：US10395674
申请日：2003-03-24
申请人： Akihiro Iino , Koji Nitadori , Masao Kasuga
发明人： Akihiro Iino , Koji Nitadori , Masao Kasuga
IPC分类号： H02N2/06
CPC分类号： H02N2/0075
摘要： To provide a control system provided with a positioning mechanism including plural ultrasonic motors in the device, which can keep good operational stability as compared with a conventional system with a servo mechanism, is of an energy saving type suppressing power consumption and is compact in structure including the motor and a control circuit therefor. A control circuit in a control system of the present invention uses a common drive control circuit for a plurality of ultrasonic motors among the positioning mechanisms in which when the drive control circuit inputs a signal that specifies any ultrasonic motor and a desired-position designation signal, the drive control circuit conducts control operation that transmits an on signal to a driver of the subject motor to start the driving, and stops the driving when the motor reaches a desired position while receiving a position detection signal. Thus, the control system has a function of transmitting a signal indicating that the positioning operation is being conducted from a time point when commands are received to a time point when the positioning operation is completed. Then, an error signal is outputted when the motor is out of the desired position.
摘要翻译：为了提供一种具有定位机构的控制系统，与具有伺服机构的传统系统相比，该装置中包括多个超声波马达的定位机构能够保持良好的运行稳定性，是节能型的抑制功率消耗，结构紧凑，包括电机及其控制电路。本发明的控制系统中的控制电路在定位机构中使用用于多个超声波马达的公共驱动控制电路，其中当驱动控制电路输入指定任何超声波马达的信号和期望位置指定信号时，驱动控制电路进行向目标马达的驾驶员发送接通信号的控制动作，开始驱动，在接收到位置检测信号时电动机达到期望位置时停止驱动。因此，控制系统具有从指令接收的时刻到定位动作完成的时刻发送表示进行定位动作的信号的功能。然后，当电机超出所需位置时，输出错误信号。

7. 发明授权

US06384503B1 Motor 有权
标题翻译：发动机
公开(公告)号：US06384503B1
公开(公告)日：2002-05-07
申请号：US09552440
申请日：2000-04-18
申请人： Tadao Iwaki , Naoki Kawawada , Atsushi Ohta , Koji Nitadori
发明人： Tadao Iwaki , Naoki Kawawada , Atsushi Ohta , Koji Nitadori
IPC分类号： H02K1502
CPC分类号： H02K1/2786
摘要： A motor has an armature disposed on one of a rotor and a stator and a permanent magnet disposed on the other of the rotor and the stator. The permanent magnet has skewed magnetic poles being magnetized so that a boundary between each pair of skewed magnetic poles is generally S-shaped and opposed areas of pole surfaces of the permanent magnet and the armature gradually increase when the pole surface of the permanent magnet enters a magnetic field region of the pole surface of the armature or gradually decrease when the pole surface of the permanent magnet leaves a magnetic field region of the pole surface of the armature.
摘要翻译：电动机具有设置在转子和定子之一上的电枢和设置在转子和定子的另一个上的永磁体。永久磁铁具有被磁化的倾斜磁极，使得每对偏斜磁极之间的边界通常为S形，并且当永磁体的磁极表面进入时，永磁体和电枢的极面的相对面积逐渐增加当永磁体的磁极表面离开电枢极面的磁场区域时，电枢极面的磁场区域或者逐渐减小。

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