JPS573550A - Bearing device for rotary electric machine - Google Patents

Bearing device for rotary electric machine

Info

Publication number
JPS573550A
JPS573550A JP7422580A JP7422580A JPS573550A JP S573550 A JPS573550 A JP S573550A JP 7422580 A JP7422580 A JP 7422580A JP 7422580 A JP7422580 A JP 7422580A JP S573550 A JPS573550 A JP S573550A
Authority
JP
Japan
Prior art keywords
bearing
bearing cover
air passage
air
cover
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
JP7422580A
Other languages
Japanese (ja)
Inventor
Takehiko Kurita
Hiroaki Kanazawa
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.)
Hitachi Ltd
Hitachi Mining Co
Original Assignee
Hitachi Ltd
Hitachi Mining Co
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 Hitachi Ltd, Hitachi Mining Co filed Critical Hitachi Ltd
Priority to JP7422580A priority Critical patent/JPS573550A/en
Publication of JPS573550A publication Critical patent/JPS573550A/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
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball 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
    • F16C37/00—Cooling of bearings
    • F16C37/007—Cooling of bearings of rolling 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/042—Housings for rolling element bearings for rotary movement

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Motor Or Generator Frames (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

PURPOSE:To contrive to prevent the thermal conduction as well as to suppress the generation of heat at bearing itself for the subject device by a method wherein an air passage is provided inside a bearing cover and cooling air is flown from the ventilating hole provided inside a shaft and is circulated in the air passage of a bearing cover. CONSTITUTION:A bearing bracket 24 is fixed on the bearing 20 and the inside of the bearing 20 is covered by an inner bearing cover 28. The inner bearing cover 28 is formed in double structure in such manner that an air pocket 42, to be used as an air passage, is provided inside the bearing cover. Also, on the shaft 16 which is supported by the bearing 20, an air passage 38 is formed in axial direction from the end section of the outer fan 34 to the point corresponding to the bearing cover 28. At the deepest section of the air passage 38, a penetrated hole 40 is formed in a radiant direction and, at the same time, a penetrated hole 44 is provided on the bearing cover 28 conforming to the penetrated hole 40. Through these procedures, the cooled air is circulated around the bearing 20 and the cooling effect for the subject device can be increased.
JP7422580A 1980-06-04 1980-06-04 Bearing device for rotary electric machine Pending JPS573550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7422580A JPS573550A (en) 1980-06-04 1980-06-04 Bearing device for rotary electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7422580A JPS573550A (en) 1980-06-04 1980-06-04 Bearing device for rotary electric machine

Publications (1)

Publication Number Publication Date
JPS573550A true JPS573550A (en) 1982-01-09

Family

ID=13541020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7422580A Pending JPS573550A (en) 1980-06-04 1980-06-04 Bearing device for rotary electric machine

Country Status (1)

Country Link
JP (1) JPS573550A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0425343A (en) * 1990-05-21 1992-01-29 Makino Milling Mach Co Ltd Method for cooling bearing for main spindle of machine
JP2004011766A (en) * 2002-06-06 2004-01-15 Nsk Ltd Bearing device
WO2006034922A1 (en) * 2004-09-30 2006-04-06 Robert Bosch Gmbh Devices for dissipating heat from electrical machines
CN102003466A (en) * 2010-11-02 2011-04-06 西安瑞特快速制造工程研究有限公司 Rolling bearing dust prevention and temperature reduction device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0425343A (en) * 1990-05-21 1992-01-29 Makino Milling Mach Co Ltd Method for cooling bearing for main spindle of machine
JP2004011766A (en) * 2002-06-06 2004-01-15 Nsk Ltd Bearing device
WO2006034922A1 (en) * 2004-09-30 2006-04-06 Robert Bosch Gmbh Devices for dissipating heat from electrical machines
CN102003466A (en) * 2010-11-02 2011-04-06 西安瑞特快速制造工程研究有限公司 Rolling bearing dust prevention and temperature reduction device

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