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公开(公告)号：EP2937582A4
公开(公告)日：2015-12-02
申请号：EP12890467
申请日：2012-12-19
发明人： FUTAE TAKAYA , KANKI HIROSHI , HAYASHI NORIYUKI , NISHIDA HIDEAKI , OGAWA SHINJI , YASUDA CHIAKI , OZAWA YUTAKA
CPC分类号： F16C17/028 , F01D25/166 , F01D25/186 , F04D17/10 , F04D29/053 , F04D29/056 , F04D29/284 , F05D2260/98 , F16C17/18 , F16C33/1045 , F16C33/1075 , F16C33/1085 , F16C2360/24
摘要： An object is to provide a floating bush bearing device with excellent oscillation stability and small bearing loss. A floating bush bearing device (1) which rotatably supports a rotation shaft (R) includes: a bearing housing (10), a floating bush (20) rotatably disposed between the rotation shaft and an inner circumferential surface (10a) of the bearing housing, in the bearing housing, and a bush side oil supply hole (22) which is formed through the floating bush and is capable of supplying lubricating oil between the rotation shaft and the inner circumferential surface of the floating bush, the inner circumferential surface of the floating bush has a non-circular shape so that a gap portion (g) is formed between the rotation shaft and the inner circumferential surface of the floating bush, the gap portion having a predetermined clearance or larger regardless of relative positions of the rotation shaft and the inner circumferential surface of the floating bush, and the bush side oil supply hole (22) communicates with the gap portion.
摘要翻译： 目的是提供具有优异的振荡稳定性和小的轴承损耗的浮动衬套轴承装置。 可旋转地支撑旋转轴（R）的浮动衬套轴承装置（1）包括：轴承壳体（10），可旋转地设置在旋转轴和轴承壳体（10）的内周表面（10a）之间的浮动衬套 在所述轴承壳体中，并且所述衬套侧供油孔（22）通过所述浮动衬套形成，并且能够在所述旋转轴与所述浮动衬套的内周面之间供给润滑油，所述衬套侧供油孔 浮动衬套具有非圆形形状，使得在旋转轴和浮动衬套的内周表面之间形成间隙部分（g），间隙部分具有预定间隙或更大，而与旋转轴和 浮动衬套的内周面和衬套侧供油孔22与间隙部连通。
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公开(公告)号：EP3081746A4
公开(公告)日：2016-12-21
申请号：EP13899261
申请日：2013-12-11
发明人： HAYASHI NORIYUKI , OZAKI MAKOTO , SEIKE NARIAKI , KANKI HIROSHI , SUZUKI HIROSHI
CPC分类号： F04D29/266 , F01D5/025 , F04D29/053 , F04D29/284 , F04D29/624 , F04D29/662 , F05D2220/40 , F05D2230/64 , F05D2260/37
摘要： An object is to provide a rotational body in which a gap is not formed between a rotational shaft and an impeller even during rotation at high speed in the interference fit portion between the rotational shaft and the impeller, and in which misalignment between the center positions of the rotational shaft and the impeller does not arise, and a manufacturing method thereof. A rotational body includes a rotational shaft 2, an impeller 3, and a nut 6. The impeller includes a hub portion 4 having a peripheral surface 4s inclined to the axial direction of the rotational shaft and having an insert hole 4h in which the rotational shaft is inserted, and a blade portion 5. At least one of the rotational shaft or the insert hole of the hub portion has an interference fit portion 10 for fit between the rotational shaft and the impeller, where the outside diameter of the rotational shaft is larger than the inside diameter of the insert hole of the hub portion. The interference fit portion is formed in a region which does not include the largest outside diameter portion 4B where the hub portion has a largest outside diameter, with the rotational shaft and the impeller mating with each other.
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