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    • 3. 发明专利
    • Shaft sealing mechanism and rotary machine
    • 轴封密封机和旋转机
    • JP2006132328A
    • 2006-05-25
    • JP2004318777
    • 2004-11-02
    • Toshiba Aitekku KkToshiba Corp東芝アイテック株式会社株式会社東芝
    • SAKAKIDA HITOSHITSUTSUI MASASHIICHIMONJI MASAYUKIYAMASHITA TATSUOSASAKI TAKASHI
    • F01D11/02F16J15/453
    • PROBLEM TO BE SOLVED: To improve reliability of a shaft sealing mechanism for a rotary machine and improve sealing performance. SOLUTION: This sealing mechanism includes a rotary part 12 driven and rotated and a stationary part 11 enclosing a rotary part 11 and forming a flow pass of a working fluid together with the rotary part 12, and extends in a circumference direction at a position where the rotary part 12 and the stationary part 11 get close and fades in a radial direction to limit flow of working fluid in an axial direction. The sealing mechanism includes a labyrinth restriction piece 20 formed on the rotary part 12 and projecting in a radial direction toward the stationary part 11 and extending in a circumference direction and a free-machining abradable coating 21 formed with extending in a circumference direction at a position where the stationary part 11 and the labyrinth seal piece 20 face wearing when a tip of the labyrinth seal restriction piece 20 touches the same. A plurality of roughness are arranged in a circumference direction and formed on the tip part of the labyrinth seal restriction piece 20 facing the abradable coating 21. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提高旋转机械的轴封机构的可靠性,提高密封性能。 解决方案:该密封机构包括驱动旋转的旋转部12和包围旋转部11的固定部11,与旋转部12一起形成工作流体的流路,并且在圆周方向上延伸 旋转部12和固定部11靠近的位置,径向褪色,限制工作流体沿轴向的流动。 密封机构包括:形成在旋转部12上并沿径向朝向固定部11向圆周方向突出的迷宫式限制片20,以及沿圆周方向延伸的自由机械磨损性涂层21, 当迷宫式密封限制片20的尖端接触时,静止部分11和迷宫式密封件20面对着磨损。 多个粗糙度沿圆周方向布置,并形成在迷宫式密封限制片20的面向可磨损涂层21的顶端部分上。(C)2006,JPO&NCIPI
    • 5. 发明专利
    • Rotary machine and shaft seal mechanism
    • 旋转机和轴封机构
    • JP2006132691A
    • 2006-05-25
    • JP2004323536
    • 2004-11-08
    • Toshiba Aitekku KkToshiba Corp東芝アイテック株式会社株式会社東芝
    • YAMASHITA TATSUOICHIMONJI MASAYUKISAKAKIDA HITOSHIIKEDA KAZUNORIHIRANO TOSHIOKITAGUCHI KOICHISHINOZAKI YUKIOTSUTSUI MASASHI
    • F16J15/447F04D29/08F04D29/10
    • PROBLEM TO BE SOLVED: To smooth radially inward movements of a seal segment of a shaft seal mechanism.
      SOLUTION: The shaft seal mechanism includes seal segments 5 that extend circularly at an outside of the rotary shaft 1 and a plurality of which lies adjacent to one another circumferentially to be arranged so as to surround the circumference by all the segments, a seal ring holder 4 that forms a seal fins 6 that are fixed to an inside of the seal segments 5 and protrudes toward the rotary shaft 1 and further extends circumferentially, and a pressure chamber 8 that is fixed to a partition wall and into which a fluid of a high-pressure chamber 2 is drawn and holds the seal segments 5 so that the seal segments 5 is movable radially by making an outer circumference of the seal segments 5 contact with the pressure chamber 8, and an elastic member 9 for energizing the seal segments 5 outward. The seal segments 5 is pushed axially by a pressure difference between the high-pressure chamber 2 and a low-pressure chamber 3 to contact with the seal ring holder 4 at a contacting and depressing surface 10, while the contacting and depressing surface 10 tilts so that its diameter gets smaller toward the low-pressure chamber 3.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了平滑轴封机构的密封段的径向向内运动。 解决方案:轴封机构包括在旋转轴1的外侧圆形延伸的密封部分5,并且沿周向彼此相邻的多个密封部分5被布置为围绕所有部分的圆周, 形成密封翅片6的密封环保持件4,该密封片6固定到密封部5的内部并朝向旋转轴1突出并且进一步沿周向延伸;以及压力室8,固定到分隔壁,流体 并且保持密封段5,使得密封段5可通过使密封段5的外周与压力室8接触而径向移动;以及弹性构件9,用于激励密封件 5段向外。 密封段5被高压室2和低压室3之间的压差轴向推压,以在接触和压下表面10处与密封环保持件4接触,同时接触和压下表面10倾斜 其直径朝向低压室3变小。(C)2006年,JPO&NCIPI
    • 6. 发明专利
    • Shaft seal and rotary machine
    • 轴封和旋转机
    • JP2006132636A
    • 2006-05-25
    • JP2004321199
    • 2004-11-04
    • Toshiba Aitekku KkToshiba Corp東芝アイテック株式会社株式会社東芝
    • YAMASHITA TATSUOTSUTSUI MASASHIICHIMONJI MASAYUKIIKEDA KAZUTAKA
    • F16J15/447F01D11/02
    • PROBLEM TO BE SOLVED: To provide a shaft seal with high-sealing performance and high reliability. SOLUTION: There is provided a shaft seal that is arranged between a rotary shaft and a fixing system bearing surface to block a fluid flowing along the rotary shaft. In the shaft seal, a cuneiform clearance between the rotary shaft and the shaft seal is formed so as to get gradually smaller along a rotary direction of the rotary shaft. The shaft seal is equipped with a seal thin-plate member comprising a flexible material for generating dynamic pressure and a corrugated thin-plate member that is arranged at a clearance between upstream and downstream ends of the fluid in the seal thin-plate member and a stationary portion and comprises a flexible material for supporting the seal thin-plate member elastically to the stationary portion as well as sealing the clearance. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供具有高密封性能和高可靠性的轴封。 解决方案:提供了一种轴密封件,其设置在旋转轴和固定系统支承表面之间以阻挡沿着旋转轴流动的流体。 在轴封中,旋转轴和轴密封之间的楔形间隙形成为沿着旋转轴的旋转方向逐渐变小。 轴封配备有包括用于产生动压的柔性材料的密封薄板构件和布置在密封薄板构件中的流体的上游和下游端之间的间隙处的波纹状薄板构件,以及 并且包括用于将密封薄板构件弹性地支撑到固定部分以及密封间隙的柔性材料。 版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Rotary electric machine
    • 旋转电机
    • JP2012253905A
    • 2012-12-20
    • JP2011124540
    • 2011-06-02
    • Toshiba Corp株式会社東芝
    • ICHIMONJI MASAYUKIHIRANO TOSHIOMIMURA YUKIKAHATA YASUOUEDA TAKASHIMURATA DAISUKENAGAKURA KENOTAKA TORUTOKUMASU TADASHI
    • H02K1/18
    • PROBLEM TO BE SOLVED: To provide a rotary electric machine having a structure which suppresses electromagnetic vibration in a case of a split structure of a stator when a rotor is used in a high rotational frequency for a turbine generator or the like.SOLUTION: A rotary electric machine has a stator arranged around a rotor in which the stator is divided into an inner core and an outer core in a radial direction centering a shaft center of the rotor. The inner core is formed in one with sectorial magnetic steel sheets that are divided into a plurality of sectors in a circumferential direction being laminated in the axial direction in which rotation angles of the magnetic steel sheets are respectively displaced so that division surfaces are inconsecutive in the axial direction. The outer core is formed with magnetic steel sheets that are divided into a plurality of sectors in the circumferential direction being laminated in the axial direction in which the rotation angles are aligned so that the division surfaces are consecutive in the axial direction, in at least two positions in the circumferential direction.
    • 解决的问题:提供一种具有这样一种结构的旋转电机,该旋转电机在转子用于涡轮发电机等的高转速时在定子的分体结构的情况下抑制电磁振动。 解决方案:旋转电机具有围绕转子布置的定子,其中定子以转子的轴心为中心沿径向分成内芯和外芯。 内芯形成为具有扇形磁性钢板的扇形磁性钢板,其沿圆周方向被分割成沿轴向层叠的多个扇形区域,其中电磁钢板的旋转角度分别位移,使得分隔表面在 轴向。 外芯由磁性钢板形成,该电磁钢板沿圆周方向分成多个沿着轴向的层叠方向,其中旋转角度被对准,使得分割表面在轴向方向上连续,至少两个 在圆周方向上的位置。 版权所有(C)2013,JPO&INPIT
    • 8. 发明专利
    • Rotary electric machine
    • 旋转电机
    • JP2011234591A
    • 2011-11-17
    • JP2010105247
    • 2010-04-30
    • Toshiba Corp株式会社東芝
    • ICHIMONJI MASAYUKIHIRANO TOSHIOMURATA DAISUKEKATAYAMA HITOSHI
    • H02K1/18
    • H02K5/24H02K1/185
    • PROBLEM TO BE SOLVED: To suppress transmission of vibration to a base where a rotary electric machine is arranged.SOLUTION: The rotary electric machine includes a stator core 11 vibrating in a radius direction with rotation of a rotor 1, a stator frame 12 covering the stator core 11 and a vibrator 30 disposed on a side of the stator core 11. The vibrator 30 includes a spring rod 31 and a circular member 35 covering the spring rod 31 while a part of it is coupled to the spring rod 31. The spring rod 31 is coupled by first stator core coupling portions formed in two places of a side of the stator core 11 by leaving an interval in a circumferential direction. The stator frame 12 is fitted to the stator core 11 by second stator core coupling portions formed in two places different from the first stator core coupling portions. The second stator core coupling portion includes a position near a node of a circular vibration mode of the stator core 11 where an antinode and the node of vibration alternately occur along the circumferential direction by fitting the vibrator 30 to the stator core 11.
    • 要解决的问题:抑制向配置旋转电机的基座的振动传递。 解决方案:旋转电机包括:转子1的旋转沿半径方向振动的定子芯11;覆盖定子铁心11的定子架12;以及设置在定子铁心11一侧的振子30。 振动器30包括弹簧杆31和覆盖弹簧杆31的圆形构件35,同时其一部分联接到弹簧杆31.弹簧杆31通过第一定子芯联接部分联接,第一定子芯联接部分形成在 定子铁芯11通过在圆周方向上留下间隔。 定子框架12通过形成在与第一定子铁芯联接部分不同的两个位置的第二定子铁芯联接部分配合到定子铁芯11。 第二定子铁芯联接部分包括靠近定子铁芯11的圆周振动模式的节点的位置,其中通过将振动器30装配到定子铁心11,沿着圆周方向交替出现波腹的波腹和振动节点。 版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • Shaft system stability measuring method and operation method of rotary machine
    • 旋转机械的轴系稳定性测量方法与操作方法
    • JP2011133362A
    • 2011-07-07
    • JP2009293268
    • 2009-12-24
    • Toshiba Corp株式会社東芝
    • HIRANO TOSHIOICHIMONJI MASAYUKISAKAKIDA HITOSHIIMAI KENICHI
    • G01M99/00G01H17/00
    • PROBLEM TO BE SOLVED: To accurately evaluate the stability of a rotary shaft system, by extracting a characteristic vibration component of the rotary shaft system at operation. SOLUTION: A method includes a first step of measuring vibration generated during operation of a rotary machine by a rotating section or a non-rotating section; a second step of performing frequency analysis by paying attention to a characteristic frequency of the rotary machine relative to a vibration signal measured in the first step; a third step of acquiring a frequency response, by executing equalization processing continuously for a prescribed time so that a frequency component of the characteristic frequency subjected to frequency analysis in the second step can be extracted; and a fourth step of evaluating stability of the rotary shaft system, from the frequency response obtained in the third step. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:通过在运行时提取旋转轴系的特征振动分量来精确评估旋转轴系统的稳定性。 解决方案:一种方法包括:第一步骤,通过旋转部分或非旋转部分测量旋转机器操作期间产生的振动; 通过注意旋转机器的特征频率相对于在第一步骤中测量的振动信号来执行频率分析的第二步骤; 通过连续执行规定时间的均衡处理来获取频率响应的第三步骤,从而可以提取在第二步骤中进行频率分析的特征频率的频率分量; 以及从第三步骤中获得的频率响应来评估旋转轴系统的稳定性的第四步骤。 版权所有(C)2011,JPO&INPIT