公开(公告)号：US20070140604A1

公开(公告)日：2007-06-21

申请号：US11604721

申请日：2006-11-28

申请人： Yuji Shishido ,  Kenichiro Yazawa ,  Takeshi Kaneko ,  Kiyoyuki Takada ,  Hiroshi Sato ,  Yoshiaki Kakinuma ,  Ichiro Nakamura

发明人： Yuji Shishido ,  Kenichiro Yazawa ,  Takeshi Kaneko ,  Kiyoyuki Takada ,  Hiroshi Sato ,  Yoshiaki Kakinuma ,  Ichiro Nakamura

IPC分类号： F16C32/06

CPC分类号： F16C33/107 ,  F16C17/026 ,  F16C17/107 ,  F16C33/103 ,  H02K5/1675 ,  H02K7/085

摘要： A bearing unit for rotatably supporting a shaft comprises a seamless holding member with a gap allowing a shaft to run through and extend to the outside, a bearing arranged in the inside of the holding member to rotatably support the shaft so as to make it radially revolvable, an anti-shaft-release member fitted to the shaft so as to abut the bearing in order to prevent the shaft from slipping away in the thrusting direction and a space-forming member arranged in the inside of the holding member so as to secure a space around the anti-shaft-release member. A bearing unit may further comprise an lubricating oil seal member and the space-forming member may be used to form a passage way for lubricating oil to prevent lubricating oil from leaking.

摘要翻译： 用于可旋转地支撑轴的轴承单元包括具有允许轴穿过并延伸到外部的间隙的无缝保持构件，布置在保持构件内侧的轴承，以可旋转地支撑轴，以使其可径向旋转 安装在所述轴上以抵抗所述轴承以防止所述轴在推动方向上滑落的防轴释放构件以及布置在所述保持构件内部的空间形成构件，以便确保 防轴释放构件周围的空间。 轴承单元还可以包括润滑油密封构件，并且空间形成构件可以用于形成用于润滑油的通道，以防止润滑油泄漏。

公开(公告)号：US20050163404A1

公开(公告)日：2005-07-28

申请号：US10506433

申请日：2004-01-08

申请人： Yuji Shishido ,  Kenichiro Yazawa ,  Takeshi Kaneko ,  Kiyoyuki Takada ,  Hiroshi Sato ,  Yoshiaki Kakinuma ,  Ichiro Nakamura

发明人： Yuji Shishido ,  Kenichiro Yazawa ,  Takeshi Kaneko ,  Kiyoyuki Takada ,  Hiroshi Sato ,  Yoshiaki Kakinuma ,  Ichiro Nakamura

IPC分类号： F16C17/10 ,  F16C33/10 ,  H02K5/16 ,  H02K5/167 ,  H02K7/08 ,  F16C32/06

CPC分类号： F16C33/107 ,  F16C17/026 ,  F16C17/107 ,  F16C33/103 ,  H02K5/1675 ,  H02K7/085

摘要： A bearing unit (90) for rotatably supporting a shaft (100) comprises a seamless holding member (120) with a gap allowing a shaft to run through and extend to the outside, a bearing (130) arranged in the inside of the holding member to rotatably support the shaft so as to make it radially revolvable, an anti-shaft-release member (115) fitted to the shaft so as to abut the bearing in order to prevent the shaft from slipping away in the thrusting direction and a space-forming member (113) arranged in the inside of the holding member so as to secure a space around the anti-shaft-release member. A bearing unit may further comprise an lubricating oil seal member and the space-forming member may be used to form a passage way for lubricating oil to prevent lubricating oil from leaking.

摘要翻译： 用于可旋转地支撑轴（100）的轴承单元（90）包括具有允许轴穿过并延伸到外部的间隙的无缝保持构件（120），布置在保持构件内部的轴承（130） 为了可旋转地支撑轴以使其可径向旋转，安装在轴上的防轴释放构件（115）以便抵靠轴承，以防止轴在推动方向上滑落， 形成构件（113），其设置在所述保持构件的内部，以便确保所述防轴释放构件周围的空间。 轴承单元还可以包括润滑油密封构件，并且空间形成构件可以用于形成用于润滑油的通道，以防止润滑油泄漏。

公开(公告)号：US07029179B2

公开(公告)日：2006-04-18

申请号：US10450851

申请日：2002-10-18

申请人： Yuji Shishido ,  Toshio Hashimoto ,  Kiyoyuki Takada

发明人： Yuji Shishido ,  Toshio Hashimoto ,  Kiyoyuki Takada

IPC分类号： F16C17/10

CPC分类号： F16C33/107 ,  F16C17/107 ,  F16C2370/12 ,  G11B19/2009

摘要： A bearing unit is provided which supports a shaft (51) rotatably. It includes the shaft (51), a radial bearing (55) to support the shaft (51) circumferentially, a thrust bearing (58) to support the shaft (51) at one of thrusting-directional ends of the latter, a housing (56) having disposed therein the radial bearing (55) and thrust bearing (58) supporting together the shaft (51) and which is filled with a viscous fluid (67), and a spacer member (65) disposed inside the housing (56) to keep a gap defined between the end face of the radial bearing (55) and one side of a radial projection (54) included in the shaft (51). On the end face of the radial breading (55) opposite to one side of the radial projection (54), there is formed a first dynamic pressure producing recess (63) which produces a dynamic pressure by the viscous fluid. Also, on the side of the thrust bearing (58) opposite to the other side of the radial projection (54), there is formed a second dynamic pressure producing recess (64) which produces a dynamic pressure by the viscous fluid. As the shaft (51) rotates, the viscous fluid is circulated through the first and second dynamic pressure producing recesses (63, 64) to produce a dynamic pressure between the shaft and the radial and thrust bearings, respectively. The space member (65) provided as above permits to control the gap between the radial projection (54) and first and second dynamic pressure producing recesses (63, 64), respectively, with a high accuracy.

摘要翻译： 提供了一个可旋转地支撑轴（51）的轴承单元。 它包括轴（51），用于沿周向支撑轴（51）的径向轴承（55），用于在轴的一个推力方向端支撑轴（51）的推力轴承（58），壳体 56），其中设置有径向轴承（55）和支撑在一起的轴（51）并且填充有粘性流体（67）的推力轴承（58），以及设置在壳体（56）内部的间隔件（65） 以在径向轴承（55）的端面和包括在轴（51）中的径向突起（54）的一侧之间保持间隙。 在与径向突起（54）的一侧相对的径向切口（55）的端面上形成有第一动态压力产生凹部（63），其通过粘性流体产生动态压力。 此外，在与径向突起（54）的另一侧相对的止推轴承（58）侧，形成有由粘性流体产生动态压力的第二动压产生凹部（64）。 当轴（51）旋转时，粘性流体通过第一和第二动压产生凹槽（63,64）循环，以分别在轴与径向和推力轴承之间产生动态压力。 如上所述设置的空间部件65能够高精度地分别控制径向突起54和第一动力产生凹部（63,64）之间的间隙。