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1. WO2020004430 - PRELOAD SENSOR, BEARING DEVICE, BEARING, AND SPACER

Publication Number WO/2020/004430
Publication Date 02.01.2020
International Application No. PCT/JP2019/025272
International Filing Date 26.06.2019
IPC
G PHYSICS
01
MEASURING; TESTING
L
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
5
Apparatus for, or methods of, measuring force, e.g. due to impact, work, mechanical power, or torque, adapted for special purposes
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
19
Bearings with rolling contact, for exclusively rotary movement
02
with bearing balls essentially of the same size in one or more circular rows
14
for both radial and axial load
16
with a single row of balls
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
19
Bearings with rolling contact, for exclusively rotary movement
54
Systems consisting of a plurality of bearings with rolling friction
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
25
Bearings for exclusively rotary movement adjustable for wear or play
06
Ball or roller bearings
08
self-adjusting
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
41
Other accessories for bearings
G PHYSICS
01
MEASURING; TESTING
L
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
1
Measuring force or stress, in general
20
by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
G01L 5/00 (2006.01)
F16C 19/16 (2006.01)
F16C 19/54 (2006.01)
F16C 25/08 (2006.01)
F16C 41/00 (2006.01)
G01L 1/20 (2006.01)
CPC
F16C 19/16
F16C 19/54
F16C 25/08
F16C 41/00
G01L 1/20
G01L 5/00
Applicants
  • NTN株式会社 NTN CORPORATION [JP/JP]; 大阪府大阪市西区京町堀1丁目3番17号 3-17, Kyomachibori 1-chome, Nishi-ku, Osaka-shi, Osaka 5500003, JP
Inventors
  • 小池 孝誌 KOIKE, Takashi; JP
  • 福島 靖之 FUKUSHIMA, Yasuyuki; JP
  • 澁谷 勇介 SHIBUYA, Yusuke; JP
Agents
  • 特許業務法人深見特許事務所 FUKAMI PATENT OFFICE, P.C.; 大阪府大阪市北区中之島三丁目2番4号 中之島フェスティバルタワー・ウエスト Nakanoshima Festival Tower West, 2-4, Nakanoshima 3-chome, Kita-ku, Osaka-shi, Osaka 5300005, JP
Priority Data
2018-12425529.06.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) PRELOAD SENSOR, BEARING DEVICE, BEARING, AND SPACER
(FR) CAPTEUR DE PRÉCHARGE, DISPOSITIF DE PALIER, PALIER ET ÉLÉMENT D'ESPACEMENT
(JA) 予圧センサ、軸受装置、軸受、および間座
Abstract
(EN)
A preload sensor (11) is provided with: a film-like resistor (16) that has first and second main surfaces (SF, SB); and first and second electrodes (15F, 15B) that are connected to the resistor (16). The resistor (16) is configured such that DC resistance between the first and second electrodes (15F, 15B) changes in accordance with pressure applied between the first and second main surfaces (SF, SB). The first main surface (SF) is directed toward the end surface of a bearing (5). The second main surface (SB) is directed toward the end surface (7) of a member that faces the end surface of the bearing (5) and applies a preload to the bearing (5). By having such a configuration, the preload sensor can measure the preload of the bearing with a simple configuration.
(FR)
L'invention concerne un capteur de précharge (11) qui comprend : une résistance de type film (16) qui possède des première et seconde surfaces principales (SF, SB) ; et des première et seconde électrodes (15F, 15B) qui sont connectées à la résistance (16). La résistance (16) est configurée de telle sorte qu'une résistance en courant continu (CC) entre les première et seconde électrodes (15F, 15B) varie en fonction de la pression appliquée entre les première et seconde surfaces principales (SF, SB). La première surface principale (SF) est orientée en direction de la surface d'extrémité d'un palier (5). La seconde surface principale (SB) est orientée en direction de la surface d'extrémité (7) d'un élément qui fait face à la surface d'extrémité du palier (5) et applique une précharge au palier (5). Grâce à une telle configuration, le capteur de précharge peut mesurer la précharge du palier avec une configuration simple.
(JA)
予圧センサ(11)は、第1主面(SF)と第2主面(SB)とを有する膜状の抵抗体(16)と、抵抗体(16)に接続される第1電極(15F)、第2電極(15B)とを備える。抵抗体(16)は、第1主面(SF)と第2主面(SB)との間に作用する圧力に応じて第1電極(15F)と第2電極(15B)との間の直流抵抗が変化するように構成される。第1主面(SF)は、軸受(5)の端面に向けて配置される。第2主面(SB)は、軸受(5)の端面に対向する軸受(5)に予圧を与える部材の端面(7)に向けて配置される。このような構成とすることによって、簡単な構成で軸受の予圧を測定することが可能な予圧センサを提供することができる。
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