JPS566914A - Journal bearing - Google Patents

Journal bearing

Info

Publication number
JPS566914A
JPS566914A JP8281979A JP8281979A JPS566914A JP S566914 A JPS566914 A JP S566914A JP 8281979 A JP8281979 A JP 8281979A JP 8281979 A JP8281979 A JP 8281979A JP S566914 A JPS566914 A JP S566914A
Authority
JP
Japan
Prior art keywords
bearing
radius
rotating shaft
clearance
shortest
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8281979A
Other languages
Japanese (ja)
Inventor
Shiyouichi Hisa
Hidesato Yoshizawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8281979A priority Critical patent/JPS566914A/en
Priority to DE19803023438 priority patent/DE3023438A1/en
Priority to CH4895/80A priority patent/CH651638A5/en
Priority to AU59678/80A priority patent/AU532277B2/en
Publication of JPS566914A publication Critical patent/JPS566914A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1672—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at both ends of the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/022—Sliding-contact bearings for exclusively rotary movement for radial load only with a pair of essentially semicircular bearing sleeves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/028—Sliding-contact bearings for exclusively rotary movement for radial load only with fixed wedges to generate hydrodynamic pressure, e.g. multi-lobe bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/1045—Details of supply of the liquid to the bearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/1075—Wedges, e.g. ramps or lobes, for generating pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

PURPOSE: To enable the stabilized rotation of rotating shaft possible at a journal bearing having a large diameter, by a mechanism wherein a clearance between an inner surface of the bearing at the smallest inner radius thereof and the outer circumferencial surface of the rotation shaft is set at a specified value as against the curvature of radius at the smallest inner radius of the bearing.
CONSTITUTION: A journal bearing having a larger diameter, for example a diameter of 16 inches or more, bears a rotating shaft 1 which is used for a turbine generator, etc. and may be rotated at a higher speed and loaded highly, and has a bearing inner ring 3 fixed into a bearing outer ring 2, the inner ring 3 having a cavity with its shape generally elliptic in cross section and with its shortest diameter vertically positioned. A lubricating oil is fed through an oiling port 4 into a clearance between the rotating shaft 1 and the inner ring 3 and is discharged from an oil discharging port 5. In this case, when a center of the shortest inner radius RB of the bearing coincides with an axis of the rotating shaft, the ratio of the clearance Cn between the shortest radius point and the outer surface of the rotating shaft to the radius RB is set at 0.8/1,000≤Cn/RB<1.0/1,000.
COPYRIGHT: (C)1981,JPO&Japio
JP8281979A 1979-06-30 1979-06-30 Journal bearing Pending JPS566914A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP8281979A JPS566914A (en) 1979-06-30 1979-06-30 Journal bearing
DE19803023438 DE3023438A1 (en) 1979-06-30 1980-06-23 SHAFT BEARING FOR LARGE LATHE
CH4895/80A CH651638A5 (en) 1979-06-30 1980-06-26 Plain bearing with a shaft
AU59678/80A AU532277B2 (en) 1979-06-30 1980-06-26 Journal bearings for large shafts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8281979A JPS566914A (en) 1979-06-30 1979-06-30 Journal bearing

Publications (1)

Publication Number Publication Date
JPS566914A true JPS566914A (en) 1981-01-24

Family

ID=13785003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8281979A Pending JPS566914A (en) 1979-06-30 1979-06-30 Journal bearing

Country Status (4)

Country Link
JP (1) JPS566914A (en)
AU (1) AU532277B2 (en)
CH (1) CH651638A5 (en)
DE (1) DE3023438A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5072654A (en) * 1990-01-18 1991-12-17 Detroit Diesel Corporation Piston and bearing assemblies
US5112145A (en) * 1990-01-18 1992-05-12 Detroit Diesel Corporation Piston and bearing assemblies
WO2021205686A1 (en) * 2020-04-06 2021-10-14 株式会社Ihi Multilobe bearing

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3136199A1 (en) * 1981-09-12 1983-03-31 Karl Schmidt Gmbh, 7107 Neckarsulm "RADIAL SLIDING BEARING"
US6468194B2 (en) * 2000-12-08 2002-10-22 Morgan Construction Company Sleeve for rolling mill oil film bearing
DE102014221153A1 (en) * 2014-10-17 2016-04-21 Siemens Aktiengesellschaft Mehrflächengleitlager
CN112639394B (en) * 2018-08-21 2023-05-12 瓦锡兰芬兰有限公司 Method and device for measuring the height of the clearance of a sliding bearing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5072654A (en) * 1990-01-18 1991-12-17 Detroit Diesel Corporation Piston and bearing assemblies
US5112145A (en) * 1990-01-18 1992-05-12 Detroit Diesel Corporation Piston and bearing assemblies
WO2021205686A1 (en) * 2020-04-06 2021-10-14 株式会社Ihi Multilobe bearing
US12018714B2 (en) 2020-04-06 2024-06-25 Ihi Corporation Multilobe bearing

Also Published As

Publication number Publication date
CH651638A5 (en) 1985-09-30
AU5967880A (en) 1981-01-08
AU532277B2 (en) 1983-09-22
DE3023438A1 (en) 1981-01-08

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