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公开(公告)号：US10309460B2
公开(公告)日：2019-06-04
申请号：US15964119
申请日：2018-04-27
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Yong Bok Lee , Bok Seong Choe , Sangmin Han , Jeon Kook Lee
Abstract: Disclosed is a ball bearing including an inner ring and an outer ring spaced apart from each other, each being rotatable, a cage part including a first cage and a second cage rotatably installed between the inner ring and the outer ring, and having ball receiving part formed along circumferential direction, ball installed in the ball receiving part, and rotating with the cage part as at least one of the inner ring and the outer ring rotates, and magnet which provides a magnetic force to the ball, wherein the first cage has a first seating part which is formed between the ball receiving parts, and on which one side of the magnet is placed, and the second cage has a second seating part which is connected to the first seating part, and on which the other side of the magnet is placed.
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Patent Agency Ranking
公开(公告)号：US09121450B2
公开(公告)日：2015-09-01
申请号：US14309350
申请日：2014-06-19
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Yong Bok Lee , Chang Ho Kim , Bok Seong Choe , Sol Ji Ryu
CPC classification number: F16C33/3862 , F16C19/06 , F16C33/3887 , F16C33/4641 , F16C2226/54 , F16C2226/70 , F16C2300/02
Abstract: A cage for a rolling bearing is coupled to a rolling bearing including an inner ring, an outer ring and a plurality of rolling elements rolling between the inner ring and the outer ring to keep intervals of the plurality of rolling elements, wherein the plurality of rolling elements include bodies coupled along a circumference thereof at predetermined intervals, wherein each of the bodies includes a first piece and a second piece which are attachable to each other and detachable from each other. A first coupler and a second coupler configured to be capable of being coupled to each other are respectively formed at the first piece and the second piece, and the first piece and the second piece are primarily coupled by means of a coupling force of the first coupler and the second coupler.
Abstract translation: 用于滚动轴承的保持架联接到包括内圈，外圈和在内圈和外圈之间滚动的多个滚动元件的滚动轴承，以保持多个滚动元件的间隔，其中多个滚动 元件包括以预定间隔沿其圆周连接的主体，其中每个主体包括可彼此附接并可彼此拆卸的第一部件和第二部件。 分别在第一部件和第二部件上形成能够彼此联接的第一联接器和第二联接器，并且第一部件和第二部件通过第一联接器的联接力主要联接 和第二耦合器。
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公开(公告)号：US10247638B2
公开(公告)日：2019-04-02
申请号：US15399073
申请日：2017-01-05
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Yong Bok Lee , Bok Seong Choe , Wonil Kwak , Jeon Kook Lee , Ou Seok Seo
Abstract: A bearing test apparatus for testing a test bearing, including a chamber, a bearing cap disposed in the chamber and coupled to an outer wheel of the test bearing, a driving shaft connected to an inner wheel of the test bearing to rotate the inner wheel, an extension arm extending in a radial direction of the bearing cap from the bearing cap to expose one end thereof out of the chamber, and a measurement arm configured to make a contact with one end of the extension arm and configured to be rotatable by the extension arm. When a rotation force is applied to the bearing cap by the outer wheel, the extension arm is used to measure a force applied to the measurement arm, which is used to obtain an exclusive torque of the test bearing.
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公开(公告)号：US11525477B2
公开(公告)日：2022-12-13
申请号：US16714794
申请日：2019-12-16
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Yong Bok Lee , Wonil Kwak , Bok Seong Choe , Jungwan Kim
IPC: F16C19/52 , F16C27/04 , F16C35/077 , G01M13/045
Abstract: Provided is a fractal structure for power-generation of bearing rotating vibration that is installed on an outer ring of a bearing to generate power using vibration generated from a micro whirling motion of the bearing, the fractal structure including a housing which is in contact with the outer ring of the bearing to receive the vibration generated from the micro whirling motion of the bearing, and has a receiving space therein, a flexible element which is disposed in the receiving space while being in contact with an inner circumference of the housing to convert the vibration into a radial direction, and a piezoelectric element which is installed between the housing and the flexible element and disposed near the receiving space, and deforms upon receiving the vibration converted in the radial direction from the flexible element, thereby producing electricity.
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公开(公告)号：US11241738B2
公开(公告)日：2022-02-08
申请号：US16421687
申请日：2019-05-24
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Yong Bok Lee , Jungwan Kim , Sena Jeong , Bok Seong Choe , Wonil Kwak , Jaeseung Byun
Abstract: A metal powder manufacturing apparatus for a metal 3-dimensional (3D) printer includes a driving unit which generates a rotational force, a metal beam connected to the driving unit to receive the rotational force from the driving unit and having one end disposed in a vacuum chamber, and a shaft support which supports an outer circumference of the metal beam using a magnetic force for relative movement of the metal beam in a lengthwise direction of the metal beam, wherein the shaft support is disposed such that an inner side is spaced apart a predetermined distance from the outer circumference of the metal beam, and can support the metal beam at an adjusted relative distance from the metal beam.
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公开(公告)号：US20180340574A1
公开(公告)日：2018-11-29
申请号：US15964119
申请日：2018-04-27
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Yong Bok Lee , Bok Seong Choe , Sangmin Han , Jeon Kook Lee
CPC classification number: F16C39/063 , F16C19/16 , F16C27/04 , F16C33/3831 , F16C33/3881 , F16C35/06 , F16C43/065 , F16C2202/40
Abstract: Disclosed is a ball bearing including an inner ring and an outer ring spaced apart from each other, each being rotatable, a cage part including a first cage and a second cage rotatably installed between the inner ring and the outer ring, and having ball receiving part formed along circumferential direction, ball installed in the ball receiving part, and rotating with the cage part as at least one of the inner ring and the outer ring rotates, and magnet which provides a magnetic force to the ball, wherein the first cage has a first seating part which is formed between the ball receiving parts, and on which one side of the magnet is placed, and the second cage has a second seating part which is connected to the first seating part, and on which the other side of the magnet is placed.
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