公开(公告)号：US20050058374A1

公开(公告)日：2005-03-17

申请号：US10709986

申请日：2004-06-11

申请人： Masato Gomyo ,  Noboru Ashibe ,  Junya Mizukami

发明人： Masato Gomyo ,  Noboru Ashibe ,  Junya Mizukami

IPC分类号： F16C17/10 ,  F16C33/10 ,  F16C33/74 ,  G11B19/20 ,  H02K5/16 ,  F16C32/06

CPC分类号： G11B19/2018 ,  F16C17/102 ,  F16C33/103 ,  F16C33/745 ,  F16C2370/12 ,  H02K5/163 ,  H02K5/165

摘要： A suitable the inner point is set on a vapor-liquid face of lubricating fluid formed in a composite capillary seal section that utilizes capillary force and rotational centrifugal force acted on the lubricating fluid. An inner peripheral surface of a ring-shaped portion is formed such that the minimum value R1 in radial-direction distances of the inner peripheral face of the ring-shaped portion becomes greater than a radial-direction distance R2 of the inner point (R1>R2). This can observe the inner point of the lubricating fluid from the immediately-above position, whereby the filling amount of the lubricating fluid can easily and surely be measured, thereby being capable of adjusting the filling amount of the lubricating fluid to a preset amount.

摘要翻译： 将合适的内点设置在复合毛细管密封部分中形成的润滑流体的气液面上，其利用作用在润滑流体上的毛细管力和旋转离心力。 形成环状部的内周面，使得环状部的内周面的径向距离的最小值R1大于内点的径向距离R2（R1> R2）。 这样可以观察从上述位置起的润滑流体的内部点，从而容易且可靠地测量润滑流体的填充量，从而能够将润滑流体的填充量调节到预定量。

公开(公告)号：US07118278B2

公开(公告)日：2006-10-10

申请号：US10709986

申请日：2004-06-11

申请人： Masato Gomyo ,  Noboru Ashibe ,  Junya Mizukami

发明人： Masato Gomyo ,  Noboru Ashibe ,  Junya Mizukami

IPC分类号： F16C32/06 ,  F16C33/74

CPC分类号： G11B19/2018 ,  F16C17/102 ,  F16C33/103 ,  F16C33/745 ,  F16C2370/12 ,  H02K5/163 ,  H02K5/165

摘要： A suitable the inner point is set on a vapor-liquid face of lubricating fluid formed in a composite capillary seal section that utilizes capillary force and rotational centrifugal force acted on the lubricating fluid. An inner peripheral surface of a ring-shaped portion is formed such that the minimum value R1 in radial-direction distances of the inner peripheral face of the ring-shaped portion becomes greater than a radial-direction distance R2 of the inner point (R1>R2). This can observe the inner point of the lubricating fluid from the immediately-above position, whereby the filling amount of the lubricating fluid can easily and surely be measured, thereby being capable of adjusting the filling amount of the lubricating fluid to a preset amount.

摘要翻译： 将合适的内点设置在复合毛细管密封部分中形成的润滑流体的气液面上，其利用作用在润滑流体上的毛细管力和旋转离心力。 环状部的内周面形成为使得环状部的内周面的径向距离的最小值R 1大于内点的径向距离R 2（ R 1> R 2）。 这样可以观察从上述位置起的润滑流体的内部点，从而容易且可靠地测量润滑流体的填充量，从而能够将润滑流体的填充量调节到预定量。

公开(公告)号：US07008109B2

公开(公告)日：2006-03-07

申请号：US10708105

申请日：2004-02-10

申请人： Masato Gomyo ,  Noboru Ashibe ,  Masayoshi Saichi ,  Shingo Suginobu ,  Junya Mizukami ,  Nobutaka Nagao ,  Koichi Shoda ,  Akihito Kobayashi

发明人： Masato Gomyo ,  Noboru Ashibe ,  Masayoshi Saichi ,  Shingo Suginobu ,  Junya Mizukami ,  Nobutaka Nagao ,  Koichi Shoda ,  Akihito Kobayashi

IPC分类号： F16C32/06

CPC分类号： F16C33/201 ,  F16C17/107 ,  F16C33/10 ,  F16C2370/12

摘要： A dynamic pressure bearing device includes a dynamic pressure face of a shaft member, a dynamic pressure face of a bearing member, lubricating fluid filled in a bearing space of a dynamic pressure bearing portion including a gap between the dynamic pressure faces, a dynamic pressure generation means for pressing so that the lubricating fluid generates a dynamic pressure that supports the shaft member in a non-contact manner with the bearing member and in a rotatable manner relatively to the bearing member, and a sliding surface layer having abrasion resistance provided to at least one of the dynamic pressure face of the shaft member and the dynamic pressure face of the bearing member. The sliding surface layer is made up of a resin lubricating film in which many particles of solid lubricating material is dispersed, and a maximum diameter of the particles constituting the solid lubricating material included in the sliding surface layer is smaller than a minimum gap size of the bearing space of the dynamic pressure bearing portion.

摘要翻译： 动压轴承装置包括轴构件的动压面，轴承构件的动压面，填充在包括动压面之间的间隙的动压承受部的轴承空间中的润滑流体，动压产生 用于压制的装置，使得润滑流体产生动态压力，该动态压力以与轴承构件非接触的方式相对于轴承构件以可旋转的方式产生支撑轴构件，并且具有至少提供耐磨性的滑动表面层 轴构件的动压面和轴承构件的动压面之一。 滑动面层由分散有许多固体润滑材料颗粒的树脂润滑膜构成，并且构成包含在滑动表面层中的固体润滑材料的颗粒的最大直径小于最小间隙尺寸 动压轴承部分的轴承空间。

公开(公告)号：US07201517B2

公开(公告)日：2007-04-10

申请号：US10872976

申请日：2004-06-18

申请人： Masato Gomyo ,  Masayoshi Saichi ,  Shingo Suginobu ,  Junya Mizukami ,  Yoshitaka Murayama

发明人： Masato Gomyo ,  Masayoshi Saichi ,  Shingo Suginobu ,  Junya Mizukami ,  Yoshitaka Murayama

IPC分类号： F16C32/06

CPC分类号： G11B19/2018 ,  F16C17/026 ,  F16C17/105 ,  F16C33/107 ,  F16C33/1085 ,  F16C2370/12

摘要： A hydrodynamic bearing device comprises a shaft bush having a substantially conical inclined dynamic pressure surface around the outer circumference thereof which is relatively rotatably inserted in a bearing sleeve having a substantially conical inclined dynamic pressure surface around the inner circumference thereof. A substantially conical inclined bearing space is created in the gap between the inclined dynamic pressure surfaces of the bearing sleeve and shaft bush. Lubricant fluid is filled inside the inclined bearing space. A proper dynamic pressure generating means is formed on at least one of the inclined dynamic pressure surfaces of the shaft bush and bearing sleeve. The lubricant fluid is pressurized by the dynamic pressure generating means to generate dynamic pressure, by which the shaft bush and the bearing sleeve are relatively elevated in the radial and thrust directions so that their rotations are supported in a non-contact manner. A fluid sealing portion is provided in the inclined bearing space to prevent the lubricant fluid from leaking outside of the inclined bearing space. A fluid pressurizing means is provided between the inclined bearing space and the fluid sealing portion to pressurize the lubricant fluid in the direction to push it toward the inside of the inclined bearing space.

摘要翻译： 一种流体动力轴承装置包括轴套，该轴套具有围绕其外圆周的基本圆锥形的倾斜动态压力表面，其相对可旋转地插入到具有围绕其内圆周的基本上圆锥形的倾斜动态压力表面的轴承套筒中。 在轴承套筒和轴套的倾斜动态压力表面之间的间隙中形成大致圆锥形的倾斜轴承空间。 润滑油填充在倾斜轴承空间内。 在轴衬和轴承套的至少一个倾斜动态压力表面上形成适当的动压产生装置。 润滑剂流体被动态压力产生装置加压以产生动态压力，通过该动压力，轴套和轴承套筒在径向和推力方向上相对地升高，使得它们的旋转以非接触的方式被支撑。 流体密封部设置在倾斜轴承空间中，以防止润滑剂流体泄漏到倾斜轴承空间的外部。 流体加压装置设置在倾斜支承空间和流体密封部分之间，以朝向倾斜轴承空间的内部的方向对润滑剂流体加压。

公开(公告)号：US20070154123A1

公开(公告)日：2007-07-05

申请号：US11712610

申请日：2007-02-27

申请人： Masato Gomyo ,  Masayoshi Saichi ,  Shingo Suginobu ,  Junya Mizukami ,  Yoshitaka Murayama

发明人： Masato Gomyo ,  Masayoshi Saichi ,  Shingo Suginobu ,  Junya Mizukami ,  Yoshitaka Murayama

IPC分类号： F16C32/06

CPC分类号： G11B19/2018 ,  F16C17/026 ,  F16C17/105 ,  F16C33/107 ,  F16C33/1085 ,  F16C2370/12

摘要： A hydrodynamic bearing device comprises a shaft bush having a substantially conical inclined dynamic pressure surface around the outer circumference thereof which is relatively rotatably inserted in a bearing sleeve having a substantially conical inclined dynamic pressure surface around the inner circumference thereof. A substantially conical inclined bearing space is created in the gap between the inclined dynamic pressure surfaces of the bearing sleeve and shaft bush. Lubricant fluid is filled inside the inclined bearing space. A proper dynamic pressure generating means is formed on at least one of the inclined dynamic pressure surfaces of the shaft bush and bearing sleeve. The lubricant fluid is pressurized by the dynamic pressure generating means to generate dynamic pressure, by which the shaft bush and the bearing sleeve are relatively elevated in the radial and thrust directions so that their rotations are supported in a non-contact manner. A fluid sealing portion is provided in the inclined bearing space to prevent the lubricant fluid from leaking outside of the inclined bearing space. A fluid pressurizing means is provided between the inclined bearing space and the fluid sealing portion to pressurize the lubricant fluid in the direction to push it toward the inside of the inclined bearing space.

公开(公告)号：US20050031237A1

公开(公告)日：2005-02-10

申请号：US10872976

申请日：2004-06-18

申请人： Masato Gomyo ,  Masayoshi Saichi ,  Shingo Suginobu ,  Junya Mizukami ,  Yoshitaka Murayama

发明人： Masato Gomyo ,  Masayoshi Saichi ,  Shingo Suginobu ,  Junya Mizukami ,  Yoshitaka Murayama

IPC分类号： F16C17/10 ,  F16C33/10 ,  G11B19/20 ,  F16C27/00 ,  F16C32/06

CPC分类号： G11B19/2018 ,  F16C17/026 ,  F16C17/105 ,  F16C33/107 ,  F16C33/1085 ,  F16C2370/12

摘要： A hydrodynamic bearing device comprises a shaft bush having a substantially conical inclined dynamic pressure surface around the outer circumference thereof which is relatively rotatably inserted in a bearing sleeve having a substantially conical inclined dynamic pressure surface around the inner circumference thereof. A substantially conical inclined bearing space is created in the gap between the inclined dynamic pressure surfaces of the bearing sleeve and shaft bush. Lubricant fluid is filled inside the inclined bearing space. A proper dynamic pressure generating means is formed on at least one of the inclined dynamic pressure surfaces of the shaft bush and bearing sleeve. The lubricant fluid is pressurized by the dynamic pressure generating means to generate dynamic pressure, by which the shaft bush and the bearing sleeve are relatively elevated in the radial and thrust directions so that their rotations are supported in a non-contact manner. A fluid sealing portion is provided in the inclined bearing space to prevent the lubricant fluid from leaking outside of the inclined bearing space. A fluid pressurizing means is provided between the inclined bearing space and the fluid sealing portion to pressurize the lubricant fluid in the direction to push it toward the inside of the inclined bearing space.

摘要翻译： 一种流体动力轴承装置包括轴套，该轴套具有围绕其外圆周的大致圆锥形的倾斜动态压力表面，该轴衬相对地可旋转地插入轴承套筒中，该轴承套筒具有围绕其内圆周的基本圆锥形的倾斜动态压力表面。 在轴承套筒和轴套的倾斜动态压力表面之间的间隙中形成大致圆锥形的倾斜轴承空间。 润滑油填充在倾斜轴承空间内。 在轴衬和轴承套的至少一个倾斜动态压力表面上形成适当的动压产生装置。 润滑剂流体被动态压力产生装置加压以产生动态压力，通过该动压力，轴套和轴承套筒在径向和推力方向上相对地升高，使得它们的旋转以非接触的方式被支撑。 流体密封部设置在倾斜轴承空间中，以防止润滑剂流体泄漏到倾斜轴承空间的外部。 流体加压装置设置在倾斜支承空间和流体密封部分之间，以朝向倾斜轴承空间的内部的方向对润滑剂流体加压。

公开(公告)号：US08520335B2

公开(公告)日：2013-08-27

申请号：US13198797

申请日：2011-08-05

申请人： Junya Mizukami ,  Takayuki Oe ,  Yoichi Sekii ,  Naoki Sabashi ,  Takehito Tamaoka ,  Takashi Yamamoto ,  Kazunori Usui ,  Akira Mukai

发明人： Junya Mizukami ,  Takayuki Oe ,  Yoichi Sekii ,  Naoki Sabashi ,  Takehito Tamaoka ,  Takashi Yamamoto ,  Kazunori Usui ,  Akira Mukai

IPC分类号： G11B17/02 ,  H02K5/16

CPC分类号： F16C17/107 ,  F16C33/745 ,  F16C2370/12 ,  H02K5/1677

摘要： In a motor, a stationary portion includes a shaft portion and an upper thrust portion arranged to define a single continuous monolithic member together with the shaft portion, and arranged to extend radially outward from an upper portion of the shaft portion. The shaft portion includes a female screw portion recessed axially downward from an upper end thereof. An upper end of the single continuous monolithic member defined by the shaft portion and the upper thrust portion includes an upper end annular surface arranged to extend radially outward from the female screw portion perpendicularly or substantially perpendicularly to the central axis. An outside diameter of the upper end annular surface is greater than a diameter of an outer circumferential surface of the shaft portion.

摘要翻译： 在电动机中，固定部分包括轴部分和上推力部分，所述上部推力部分布置成与所述轴部分一起限定单个连续的整体部件，并且被布置成从所述轴部分的上部径向向外延伸。 轴部包括从其上端轴向向下凹陷的阴螺纹部。 由所述轴部分和所述上推力部分限定的所述单个连续整体构件的上端包括上端环形表面，所述上端环形表面布置成垂直地或基本垂直于所述中心轴线从所述内螺纹部分径向向外延伸。 上端环状面的外径大于轴部的外周面的直径。

公开(公告)号：US08169738B1

公开(公告)日：2012-05-01

申请号：US13034778

申请日：2011-02-25

申请人： Atsushi Yawata ,  Yoichi Sekii ,  Junya Mizukami ,  Tetsuya Maruyama ,  Hirofumi Kojima

发明人： Atsushi Yawata ,  Yoichi Sekii ,  Junya Mizukami ,  Tetsuya Maruyama ,  Hirofumi Kojima

IPC分类号： G11B19/20

CPC分类号： H02K5/1675 ,  F16C17/045 ,  F16C17/107 ,  F16C33/1085 ,  F16C33/745 ,  F16C2370/12 ,  G11B19/2036 ,  H02K7/085

摘要： A fluid dynamic bearing mechanism includes a stationary bearing portion including a sleeve portion, and a rotating bearing portion including an outer rotating portion. A lubricating oil is arranged between the stationary and rotating bearing portions. A first dynamic pressure groove array is arranged in an upper surface of the sleeve portion or a lower surface of the outer rotating portion. A second dynamic pressure groove array is arranged in a surface of the outer rotating portion or a surface of the stationary bearing portion in a region between the first array and a liquid surface. An end of the second array closer to the liquid surface is arranged radially inward of an opposite end of the second array. An upper end opening of a communicating channel defined in the sleeve portion is arranged radially outward of a radially inner end of the first array.

摘要翻译： 流体动力轴承机构包括具有套筒部分的固定轴承部分和包括外部旋转部分的旋转轴承部分。 润滑油布置在固定轴承部分和旋转轴承部分之间。 第一动压槽阵列布置在套筒部分的上表面或外旋转部分的下表面中。 第二动压槽阵列布置在第一阵列和液体表面之间的区域中的外旋转部分的表面或固定轴承部分的表面中。 更靠近液面的第二阵列的端部布置在第二阵列的相对端的径向内侧。 限定在套筒部分中的连通通道的上端开口布置在第一阵列的径向内端的径向外侧。

公开(公告)号：US20100296190A1

公开(公告)日：2010-11-25

申请号：US12742931

申请日：2009-05-26

申请人： Hiroki Yamada ,  Junya Mizukami ,  Tsuyoshi Morita ,  Tetsuya Maruyama ,  Takuro Iguchi

发明人： Hiroki Yamada ,  Junya Mizukami ,  Tsuyoshi Morita ,  Tetsuya Maruyama ,  Takuro Iguchi

IPC分类号： G11B17/00 ,  F16C32/06 ,  H02K7/08

CPC分类号： F16C33/745 ,  F16C17/107 ,  F16C2370/12 ,  G11B19/2036 ,  H02K7/086

摘要： A fluid dynamic bearing apparatus includes a first minute gap, a second minute gap, a third minute gap, a fourth minute gap, and a fifth minute gap. A flow of a lubricating oil from the fifth minute gap to the fourth minute gap is caused by a plurality of dynamic pressure generating grooves arranged within the fluid dynamic bearing apparatus. This flow causes air bubbles mixed in the lubricating oil within the fifth minute gap to flow toward the third minute gap and be discharged to an outside through the third minute gap. In addition, a flow of the lubricating oil into the third minute gap caused by a centrifugal force accompanying rotation is inhibited.

摘要翻译： 流体动力轴承装置包括第一微小间隙，第二微小间隙，第三微小间隙，第四微小间隙和第五微小间隙。 润滑油从第五分钟间隙到第四微小间隙的流动由布置在流体动力轴承装置内的多个动压产生槽引起。 该流动使第五分钟间隙内的润滑油中混合的气泡朝向第三微小间隙流动，并通过第三微小间隙排出到外部。 此外，抑制由伴随旋转的离心力引起的润滑油流入第三微小间隙的流动。

公开(公告)号：US08810095B2

公开(公告)日：2014-08-19

申请号：US13198776

申请日：2011-08-05

申请人： Junya Mizukami ,  Takayuki Oe ,  Yoichi Sekii ,  Naoki Sabashi ,  Hideki Nishimura ,  Takehito Tamaoka ,  Takashi Yamamoto

发明人： Junya Mizukami ,  Takayuki Oe ,  Yoichi Sekii ,  Naoki Sabashi ,  Hideki Nishimura ,  Takehito Tamaoka ,  Takashi Yamamoto

IPC分类号： H02K5/167 ,  F16C17/10 ,  H02K7/08 ,  G11B33/14 ,  G11B19/20

CPC分类号： H02K7/085 ,  F16C17/105 ,  F16C17/107 ,  F16C33/745 ,  F16C2370/12 ,  G11B19/2036 ,  G11B33/1473

摘要： A dynamic pressure bearing is defined in a first gap between a shaft portion and a sleeve portion. An upper seal portion extending upward and a lower seal portion extending downward are arranged radially outward of the dynamic pressure bearing. Each of the upper seal portion and the lower seal portion includes a surface including a lubricating oil located therein. The upper seal portion and the lower seal portion are arranged in communication with each other through a communicating hole defined in the sleeve portion. The communicating hole and a space ranging from the upper seal portion to the lower seal portion through the first gap are filled with the lubricating oil. The axial distance between the surfaces of the lubricating oil in the upper seal portion and the lower seal portion is arranged to be shorter than the axial distance between an upper end and a lower end of the dynamic pressure bearing.

摘要翻译： 在轴部和套筒部之间的第一间隙中限定动态压力轴承。 向上延伸的上密封部分和向下延伸的下密封部分布置在动压轴承的径向外侧。 上密封部分和下密封部分中的每一个包括其中包括润滑油的表面。 上密封部分和下密封部分通过限定在套筒部分中的连通孔彼此连通。 连通孔和通过第一间隙从上密封部到下密封部的空间填充有润滑油。 上密封部中的润滑油的表面与下部密封部之间的轴向距离比动压轴承的上端和下端的轴向距离短。