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公开(公告)号：US20100019762A1
公开(公告)日：2010-01-28
申请号：US12525175
申请日：2007-01-31
IPC分类号： G01N27/82
CPC分类号： G01N27/83
摘要： A wire rope flaw detector includes a magnetizer having a pair of exciting magnets disposed on a back yoke such that polarities thereof are opposite to each other, and forming a main magnetic path in a predetermined segment in an axial direction of a wire rope; and a leakage magnetic flux detection section disposed in the predetermined segment in the axial direction, and detecting leakage magnetic flux generated from a damaged portion of the wire rope. Each of the exciting magnets are formed so as to have a cross-section of a shape that embraces the wire rope when each exciting magnet is cut along a plane perpendicular to the axial direction of the wire rope, and has magnetic orientation, on the cross-section of the exciting magnet, oriented from at least two directions toward the wire rope.
摘要翻译： 一种钢丝绳探伤仪，其特征在于，具有：磁化器，其具有配置在后轭铁上的一对励磁磁铁，使其极性彼此相反，并且在钢丝绳的轴向上形成预定段的主磁路; 以及泄漏磁通检测部，其沿轴向设置在所述预定段中，并且检测从所述钢丝绳的损坏部分产生的泄漏磁通量。 每个励磁磁体形成为当沿着与钢丝绳的轴向垂直的平面切割每个激磁磁体时具有包围钢丝绳的形状的横截面，并且在十字形上具有磁性取向 从至少两个方向朝向钢丝绳定向的激磁磁体的截面。
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公开(公告)号：US08536861B2
公开(公告)日：2013-09-17
申请号：US12525175
申请日：2007-01-31
IPC分类号： G01N27/83
CPC分类号： G01N27/83
摘要： A wire rope flaw detector includes a magnetizer having a pair of exciting magnets disposed on a back yoke such that polarities thereof are opposite to each other, and forming a main magnetic path in a predetermined segment in an axial direction of a wire rope; and a leakage magnetic flux detection section disposed in the predetermined segment in the axial direction, and detecting leakage magnetic flux generated from a damaged portion of the wire rope. Each of the exciting magnets are formed so as to have a cross-section of a shape that embraces the wire rope when each exciting magnet is cut along a plane perpendicular to the axial direction of the wire rope, and has magnetic orientation, on the cross-section of the exciting magnet, oriented from at least two directions toward the wire rope.
摘要翻译： 一种钢丝绳探伤仪，其特征在于，具有：磁化器，其具有配置在后轭铁上的一对励磁磁铁，使其极性彼此相反，并且在钢丝绳的轴向上形成预定段的主磁路; 以及泄漏磁通检测部，其沿轴向设置在所述预定段中，并且检测从所述钢丝绳的损坏部分产生的泄漏磁通量。 每个励磁磁体形成为当沿着与钢丝绳的轴向垂直的平面切割每个激磁磁体时具有包围钢丝绳的形状的横截面，并且在十字形上具有磁性取向 从至少两个方向朝向钢丝绳定向的激磁磁体的截面。
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公开(公告)号：US07347681B2
公开(公告)日：2008-03-25
申请号：US10506531
申请日：2003-04-18
申请人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara , Yasuo Ozeki
发明人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara , Yasuo Ozeki
IPC分类号： B22F3/00
CPC分类号： B22F3/03 , B22F3/02 , B22F2999/00 , H01F41/0266 , H01F41/0273 , B22F2202/05
摘要： This invention relates to a permanent magnet molding apparatus and has as an object an improvement in productivity and reliability thereof. This invention includes a transferable metal die unit (7) including a die having a cavity of a desired cross-sectional shape in which magnet molding material powder is filled, the cavity extending in groovelike form in a specific direction on a surface of the die, a lid member placed to cover the cavity, and a pair of punches having the same cross-sectional shape as the cavity, the punches being capable of fitting in the cavity from both ends thereof and made slidable in directions in which the punches go into contact with and become separated from the magnet molding material powder, pressurizing means (17, 18) for holding the metal die unit (7) which has been transferred with the magnet molding material powder filled in the cavity and for pressurizing the magnet molding material powder by driving the two punches such that the punches slide in their approaching directions, and magnetic field generating means (21, 22) for magnetizing the pressurized magnet molding material powder while applying a magnetic field thereto in a direction perpendicular to a direction of pressurization.
摘要翻译： 本发明涉及一种永磁式成型装置，其目的在于提高其生产率和可靠性。 本发明包括可转移金属模具单元（7），其包括具有期望的横截面形状的空腔的模具，其中填充有磁性成型材料粉末，所述空腔沿模具的表面沿特定方向以槽状形式延伸， 设置为覆盖空腔的盖构件以及具有与空腔相同的横截面形状的一对冲头，所述冲头能够从其两端安装在空腔中并且可在冲头接触的方向上滑动 与磁体成型材料粉末分离，并且用于保持金属模具单元（7）的加压装置（17,18），该金属模具单元（7）已经被填充在空腔中的磁性成型材料粉末转移并且用于通过 驱动两个冲头，使得冲头在其接近的方向上滑动;以及磁场产生装置（21,22），用于磁化加压磁体成型材料 同时在与加压方向垂直的方向上施加磁场。
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公开(公告)号：US20060055266A1
公开(公告)日：2006-03-16
申请号：US11227184
申请日：2005-09-16
申请人： Taizo Iwami , Yoshikazu Ugai , Yuji Nakahara
发明人： Taizo Iwami , Yoshikazu Ugai , Yuji Nakahara
CPC分类号： B22F7/062 , H01F1/086 , H01F41/028 , H02K1/2733 , H02K15/03
摘要： A sintered ring magnet (10) is produced through processes of magnetically orienting magnetic powder by applying a magnetic field, pressing the magnetic powder and sintering a ring-shaped powder compact (30) thus formed. The sintered ring magnet (10) has a generally cylindrical outer surface with surface corrugations formed by alternating hollows (11) and protrusions (12) at regular intervals around the sintered ring magnet (10) at least in part along an axial direction thereof, wherein the sintered ring magnet (10) varies in cross-sectional shape from one position to next along the axial direction, and magnetic poles are formed along the surface corrugations with boundaries of the magnetic poles located in the hollows (11). The hollows (11) and the protrusions (12) are skewed about a longitudinal axis of the sintered ring magnet (10). The surface corrugations are shaped into a wavy pattern expressed approximately by absolute values of a sine wave.
摘要翻译： 烧结环形磁铁（10）是通过施加磁场的磁性取向磁性粉末的工艺制造的，压制磁粉并烧结由此形成的环形粉末压块（30）。 烧结环形磁铁（10）具有大致圆柱形的外表面，其表面波纹通过交替的中空（11）和凸起（12）沿着其轴向方向至少部分地围绕烧结环形磁体（10）以规则的间隔形成，其中 烧结环形磁体（10）沿着轴向从一个位置向下一个位置变化，并且沿着具有位于中空部（11）中的磁极的边界的表面波纹形成磁极。 中空部（11）和突起（12）围绕烧结环状磁铁（10）的纵向轴线倾斜。 表面波纹被成形为大致由正弦波的绝对值表示的波形图案。
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公开(公告)号：US09893571B2
公开(公告)日：2018-02-13
申请号：US14114846
申请日：2011-07-08
摘要： In a permanent magnet type electric rotating machine, a rotor is arranged in a Halbach array, a main magnet magnetized in the radial direction is formed of a rare-earth magnet and an auxiliary magnet magnetized in the circumferential direction is formed of a ferrite magnet, and a gap is provided between the main magnet and the auxiliary magnet; as a result, the quantity of utilized rare-earth magnets is reduced without the output torque of the electric rotating machine being decreased.
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公开(公告)号：US20050208164A1
公开(公告)日：2005-09-22
申请号：US10506531
申请日：2003-04-18
申请人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara , Yasuo Ozeki
发明人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara , Yasuo Ozeki
CPC分类号： B22F3/03 , B22F3/02 , B22F2999/00 , H01F41/0266 , H01F41/0273 , B22F2202/05
摘要： This invention relates to a permanent magnet molding apparatus and has as an object an improvement in productivity and reliability thereof. This invention includes a transferable metal die unit (7) including a die having a cavity of a desired cross-sectional shape in which magnet molding material powder is filled, the cavity extending in groovelike form in a specific direction on a surface of the die, a lid member placed to cover the cavity, and a pair of punches having the same cross-sectional shape as the cavity, the punches being capable of fitting in the cavity from both ends thereof and made slidable in directions in which the punches go into contact with and become separated from the magnet molding material powder, pressurizing means (17, 18) for holding the metal die unit (7) which has been transferred with the magnet molding material powder filled in the cavity and for pressurizing the magnet molding material powder by driving the two punches such that the punches slide in their approaching directions, and magnetic field generating means (21, 22) for magnetizing the pressurized magnet molding material powder while applying a magnetic field thereto in a direction perpendicular to a direction of pressurization.
摘要翻译： 本发明涉及一种永磁式成型装置，其目的在于提高其生产率和可靠性。 本发明包括可转移金属模具单元（7），其包括具有期望的横截面形状的空腔的模具，其中填充有磁性成型材料粉末，所述空腔沿模具的表面沿特定方向以槽状形式延伸， 设置为覆盖空腔的盖构件以及具有与空腔相同的横截面形状的一对冲头，所述冲头能够从其两端安装在空腔中并且可在冲头接触的方向上滑动 与磁体成型材料粉末分离，并且用于保持金属模具单元（7）的加压装置（17,18），该金属模具单元（7）已经被填充在空腔中的磁性成型材料粉末转移并且用于通过 驱动两个冲头，使得冲头在其接近的方向上滑动;以及磁场产生装置（21,22），用于磁化加压磁体成型材料 同时在与加压方向垂直的方向上施加磁场。
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公开(公告)号：US06744341B2
公开(公告)日：2004-06-01
申请号：US09903815
申请日：2001-07-13
申请人： Taizo Iwami , Naoki Kajita , Hisanori Uozumi
发明人： Taizo Iwami , Naoki Kajita , Hisanori Uozumi
IPC分类号： H01H900
CPC分类号： H02K15/03 , H01F13/003
摘要： A polarizing device includes: a polarizing iron core (13) facing to a specified number of permanent magnets (11) among plural unmagnetized permanent magnets (11) arranged at specified intervals circumferentially on a rotor (12); a first coil (15) wound at a position facing to a desired permanent magnet (11a) of the polarizing iron core (13); a pair of second coils (16) each arranged having a specified interval according to the first coil (15) circumferentially on the polarizing iron core (13) and whose direction of the flowing current is different from that of the first coil (15); and a power source (22) for supplying the current to the first and second coils (15, 16), and either of the permanent magnet (11a) and first coil (15) is relatively moved and each permanent magnet (11) is magnetized to form a magnetic pole in turn by the current fed from the power source (22).
摘要翻译： 偏振装置包括：在转子（12）周向上以规定间隔排列的多个非磁化永磁体（11）中面向特定数量的永磁体（11）的偏振铁芯（13）。 在与所述偏振铁芯（13）的期望永磁体（11a）相对的位置处缠绕的第一线圈（15）; 一对第二线圈（16），每个第二线圈（16）每个在所述偏振铁芯（13）周向上沿着所述第一线圈（15）布置具有指定的间隔，并且所述流动电流的方向与所述第一线圈（15）的方向不同。 和用于向第一和第二线圈（15,16）提供电流的电源（22），并且永磁体（11a）和第一线圈（15）中的任一个相对移动，并且每个永磁体（11）被磁化 以便通过从电源（22）馈送的电流依次形成磁极。
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8.发明申请公开(公告)号：US20140084731A1
公开(公告)日：2014-03-27
申请号：US14114846
申请日：2011-07-08
摘要： In a permanent magnet type electric rotating machine, a rotor is arranged in a Halbach array, a main magnet magnetized in the radial direction is formed of a rare-earth magnet and an auxiliary magnet magnetized in the circumferential direction is formed of a ferrite magnet, and a gap is provided between the main magnet and the auxiliary magnet; as a result, the quantity of utilized rare-earth magnets is reduced without the output torque of the electric rotating machine being decreased.
摘要翻译： 在永久磁铁式旋转电机中，转子以Halbach阵列布置，沿径向磁化的主磁体由稀土类磁铁形成，沿圆周方向磁化的辅助磁体由铁氧体磁铁形成， 并且在主磁体和辅助磁体之间设置有间隙; 结果，在不使旋转电机的输出转矩降低的情况下，所使用的稀土类磁体的量减少。
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9.发明授权Apparatus for manufacturing ring-shaped powder compact and method of manufacturing sintered ring magnet 有权用于制造环形粉末压块的装置和制造烧结环磁体的方法公开(公告)号：US07524453B2
公开(公告)日：2009-04-28
申请号：US11232025
申请日：2005-09-22
申请人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara
发明人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara
IPC分类号： B22F3/087
CPC分类号： H01F41/028 , B22F3/03 , B22F2998/00 , B22F2999/00 , B22F5/10 , B22F2202/05 , B22F5/106
摘要： An apparatus for manufacturing a ring-shaped powder compact (100) includes a ring-shaped die (80) having magnetic property formed by combining a plurality of arch-shaped members (81, 82, 83, 84), a lower core section (93) placed inside a curved inner surface of the die (80), and lower and upper punches (91, 92) for pressurizing both the die (80) and magnetic powder filled into a cavity formed between the die (80) and the lower core section (93) in an axial direction of the die (80). The curved inner surface of the die (80) varies in cross-sectional shape from one position to next along the axial direction of the die (80) at least in part along the axial direction. A ring magnet manufacturing method includes filling the magnetic powder into the cavity and producing the ring-shaped powder compact (100) by pressurizing the magnetic powder in the cavity in the axial direction by means of the lower and upper punches (91, 92) while applying a radially orienting magnetic field to the magnetic powder, and sintering the ring-shaped powder compact (100).
摘要翻译： 一种环状粉末压块（100）的制造装置，具有通过组合多个拱形部件（81,82,83,84），下芯部（ 93）放置在模具（80）的弯曲内表面内，以及下冲头和上冲头（91,92），用于对模具（80）和填充到模具（80）和下模具 芯部（93）在模具（80）的轴向方向上。 模具（80）的弯曲的内表面至少部分地沿着轴向沿着模具（80）的轴向方向从一个位置到下一个的横截面形状变化。 环形磁铁的制造方法包括将磁粉填充到空腔中，并通过下冲头和上冲头（91,92）在轴向上对空腔中的磁粉进行加压来制造环形粉末压坯（100），同时 向磁性粉末施加径向定向的磁场，并烧结环形粉末压块（100）。
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公开(公告)号：US20060051233A1
公开(公告)日：2006-03-09
申请号：US11228422
申请日：2005-09-19
申请人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara , Satoshi Yamashiro
发明人： Yoshikazu Ugai , Taizo Iwami , Yuji Nakahara , Satoshi Yamashiro
IPC分类号： B22F7/02
CPC分类号： H01F41/0266 , B22F5/003 , B22F2998/00 , H01F1/086 , H01F41/028 , B22F5/106
摘要： A ring magnet manufacturing method includes the steps of stacking a plurality of radially oriented ring-shaped powder compacts (102) in an axial direction thereof to produce a ring-shaped powder compact rod, sintering the ring-shaped powder compact rod to produce a sintered ring-shaped powder compact rod (300) in which the ring-shaped powder compacts (102) are joined together, and dividing the sintered ring-shaped powder compact rod (300). In this ring magnet manufacturing method, protruding parts (103) are formed on upper end surfaces of the ring-shaped powder compacts (102) which will be located in uppermost layers of individual sintered ring magnets (100), for example, such that the ring-shaped powder compacts (102) are joined with a reduced joint strength at specific boundary regions of the sintered ring-shaped powder compact rod (300) where the protruding parts (103) are located than at the other boundary regions. The sintered ring magnets (100) are obtained by dividing the sintered ring-shaped powder compact rod (300) at the specific boundary regions having the reduced joint strength.
摘要翻译： 环形磁铁制造方法包括以下步骤：在轴向上堆叠多个径向定向的环形粉末压块（102），以制造环形粉末压实棒，烧结环形粉末压实棒以产生烧结 环状粉末压块（300），其中环状粉末压块（102）接合在一起，并且分割烧结的环形粉末压实棒（300）。 在这种环形磁铁制造方法中，突出部（103）形成在环状粉末压块（102）的位于单个烧结环状磁铁（100）的最上层的上端面上，例如， 环状粉末压块（102）在突出部（103）所在的烧结环状粉末压实棒（300）的其他边界区域的特定边界区域以缩小的接合强度接合。 烧结环形磁体（100）通过在具有降低的接合强度的特定边界区域上分割烧结环状粉末压实棒（300）而获得。
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