公开(公告)号：US12013309B2

公开(公告)日：2024-06-18

申请号：US17861714

申请日：2022-07-11

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yong Bok Lee ,  Wonil Kwak ,  Yunseok Ha ,  Yeong-do Lee ,  Jeon Kook Lee

IPC: G01M13/045

CPC classification number: G01M13/045

Abstract: The present disclosure provides an Anderon meter for cryogenic environment including a housing; a control arm installed on an inner circumference of the housing rotatably relative to the housing, and including a pressing portion; and a clamp including a contact portion on a side and an assembly portion on an opposite side, wherein the contact portion is in contact with the pressing portion so that the contact portion is pressed by the pressing portion, and the assembly portion is coupled to an inner circumference of the bearing by interference fit, wherein the pressing portion presses the contact portion by the control of an amount of relative rotation of the control arm and the assembly portion is coupled to the inner circumference of the bearing by interference fit to determine friction characteristics between the inner race of the bearing and the assembly portion.

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

IPC: G01M13/04 ,  G01D5/28 ,  F16C19/04

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.

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

IPC: F16C39/06 ,  F16C33/38 ,  F16C43/06 ,  F16C35/06 ,  F16C19/16 ,  F16C27/04

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.

公开(公告)号：US09714883B2

公开(公告)日：2017-07-25

申请号：US14506121

申请日：2014-10-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yong Bok Lee ,  Bokseong Choe ,  Jeon Kook Lee ,  Sol-Ji Ryu ,  Byoungkuk Lee

IPC: G01M13/04 ,  G01L5/00 ,  G01N29/04 ,  G01N29/14 ,  G01N29/46

CPC classification number: G01M13/04 ,  G01L5/0009 ,  G01M13/045 ,  G01N29/045 ,  G01N29/14 ,  G01N29/46 ,  G01N2291/2696

Abstract: A bearing test apparatus has a bearing cap coupled to an outer ring of a bearing to be tested (a “test bearing”), a driving rotary shaft coupled to an inner ring of the test bearing to rotate the inner ring, and a bearing torque meter for measuring a single torque of the test bearing, wherein an extension bar is formed at the bearing cap to protrude thereon, wherein the bearing torque meter includes a measurement rod configured to contact the extension bar and be fixed to support the extension bar in a direction opposite to a rotating direction of the driving rotary shaft, and a power sensor for measuring a force applied to the measurement rod, wherein the single torque of the test bearing is calculated based on a distance from the driving rotary shaft to the measurement rod and a force applied to the measurement rod.

公开(公告)号：US09829107B2

公开(公告)日：2017-11-28

申请号：US15374015

申请日：2016-12-09

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yong Bok Lee ,  Eo Jin Kim ,  Jeon Kook Lee

IPC: F16J15/44 ,  F16J15/3288 ,  F16J15/3296 ,  F16C33/76

CPC classification number: F16J15/3288 ,  F16C33/7886 ,  F16C2202/36 ,  F16C2233/00 ,  F16C2360/23 ,  F16J15/00 ,  F16J15/3296

Abstract: An oil sealing device for preventing a leakage of an oil of a bearing which supports a rotary shaft of a rotating machine has a brush member having a plurality of bristles in contact with the rotary shaft, and an actuator configured to move the brush member in a length direction of the rotary shaft, wherein a sloped surface having different heights along a length direction of the rotary shaft is formed at the rotary shaft, and wherein when the bristles are worn, the actuator moves the brush member in a length direction of the rotary shaft so that the bristles comes into contact with the sloped surface.

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

IPC: F16C39/06 ,  F16C19/16 ,  F16C35/06

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.