JPH0218921U - - Google Patents

Info

Publication number
JPH0218921U
JPH0218921U JP1988096460U JP9646088U JPH0218921U JP H0218921 U JPH0218921 U JP H0218921U JP 1988096460 U JP1988096460 U JP 1988096460U JP 9646088 U JP9646088 U JP 9646088U JP H0218921 U JPH0218921 U JP H0218921U
Authority
JP
Japan
Prior art keywords
outer ring
inner ring
solid lubricant
contact
coated
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
JP1988096460U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP1988096460U priority Critical patent/JPH0218921U/ja
Publication of JPH0218921U publication Critical patent/JPH0218921U/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0442—Active magnetic bearings with devices affected by abnormal, undesired or non-standard conditions such as shock-load, power outage, start-up or touchdown
    • 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
    • F16C39/00—Relieving load on bearings
    • F16C39/02—Relieving load on bearings using mechanical means
    • 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
    • F16C2360/00—Engines or pumps
    • F16C2360/44—Centrifugal pumps
    • F16C2360/45—Turbo-molecular pumps
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6696—Special parts or details in view of lubrication with solids as lubricant, e.g. dry coatings, powder

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案のタツチダウン軸受装置に組み
込まれるタツチダウン軸受の断面図、第２図は本
考案のタツチダウン軸受装置を示す、第４図のＡ
部拡大図、第３図は同Ｂ部拡大図、第４図は本考
案のタツチダウン軸受装置が組み込まれるターボ
分子ポンプの縦断面図である。 １：排気口、２：ケーシング、３：軸、４：ロ
ータ、５，６：タツチダウン軸受、７：磁気軸受
、８，９：磁石、１０，１１：ブレード、１２：
内輪、１３：外輪、１４：転動体、１５：固体潤
滑剤、１６，１７：相手部材。 Figure 1 is a sectional view of a touchdown bearing incorporated in the touchdown bearing device of the present invention, Figure 2 shows the touchdown bearing device of the present invention, and A in Figure 4.
FIG. 3 is an enlarged view of section B, and FIG. 4 is a longitudinal cross-sectional view of a turbo molecular pump in which the touchdown bearing device of the present invention is incorporated. 1: Exhaust port, 2: Casing, 3: Shaft, 4: Rotor, 5, 6: Touchdown bearing, 7: Magnetic bearing, 8, 9: Magnet, 10, 11: Blade, 12:
Inner ring, 13: Outer ring, 14: Rolling element, 15: Solid lubricant, 16, 17: Mating member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 内輪と、外輪と、内外両輪の間に設けられる複
数の転動体とから成り、互いに非接触状態で相対
的に回転する１対の部材の内の一方の部材に内輪
又は外輪を支持させる事で装着した、タツチダウ
ン軸受と、上記１対の部材の内の他方で、回転停
止時に上記外輪又は内輪の内、上記一方の部材に
支持されていないものの表面が接触する相手部材
とから成るタツチダウン軸受装置に於いて、上記
内輪と外輪との表面で、回転停止時に相手部材と
接触する部分に固体潤滑剤を被覆すると共に、相
手部材の表面で、この固体潤滑材を被覆した部分
が接触する部分を硬化させた事を特徴とするタツ
チダウン軸受装置。 It consists of an inner ring, an outer ring, and a plurality of rolling elements provided between the inner and outer rings, and the inner ring or the outer ring is supported by one member of a pair of members that rotate relative to each other without contacting each other. A touchdown bearing device comprising an attached touchdown bearing and a mating member, which is the other of the pair of members and comes into contact with the surface of one of the outer ring or inner ring that is not supported by the one member when rotation is stopped. In this method, a solid lubricant is coated on the surfaces of the inner ring and the outer ring that contact the mating member when the rotation is stopped, and a part of the surface of the mating member that comes in contact with the solid lubricant coated part is coated with a solid lubricant. A touch-down bearing device characterized by being hardened.
JP1988096460U 1988-07-22 1988-07-22 Pending JPH0218921U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988096460U JPH0218921U (en) 1988-07-22 1988-07-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988096460U JPH0218921U (en) 1988-07-22 1988-07-22

Publications (1)

Publication Number Publication Date
JPH0218921U true JPH0218921U (en) 1990-02-08

Family

ID=31321375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988096460U Pending JPH0218921U (en) 1988-07-22 1988-07-22

Country Status (1)

Country Link
JP (1) JPH0218921U (en)

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