PL442245A1 - Transverse and longitudinal magnetic bearing of the shaft - Google Patents

Transverse and longitudinal magnetic bearing of the shaft

Info

Publication number
PL442245A1
PL442245A1 PL442245A PL44224522A PL442245A1 PL 442245 A1 PL442245 A1 PL 442245A1 PL 442245 A PL442245 A PL 442245A PL 44224522 A PL44224522 A PL 44224522A PL 442245 A1 PL442245 A1 PL 442245A1
Authority
PL
Poland
Prior art keywords
shaft
cavity
pole piece
permanent magnet
housing
Prior art date
Application number
PL442245A
Other languages
Polish (pl)
Inventor
Włodzimierz Ochoński
Karolina Papis-Frączek
Szymon Podlasek
Original Assignee
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
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 Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie filed Critical Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Priority to PL442245A priority Critical patent/PL442245A1/en
Publication of PL442245A1 publication Critical patent/PL442245A1/en

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
    • F16C32/0408—Passive magnetic bearings
    • F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
    • F16C32/0429—Passive magnetic bearings with permanent magnets on both parts repelling each other for both radial and axial load, e.g. conical magnets
    • 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
    • F16C39/06—Relieving load on bearings using magnetic 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

Poprzeczno-wzdłużne łożyskowanie magnetyczne wałka ma na czopie (1a) wałka (1) umocowany magnes trwały (3) o przekroju litery E. W gnieździe (2a) obudowy (2) osadzony jest magnes trwały (4), również o przekroju litery E, a oba magnesy trwałe (3, 4) położone są koncentrycznie względem osi wałka. We wnęce (1b) na powierzchni czołowej czopa (1a) wałka (1) oraz we wnęce (2b) na czołowej wewnętrznej powierzchni w obudowie (2) umocowane są walcowe magnesy trwałe (5, 6) spolaryzowane osiowo i ustawione względem siebie biegunami jednoimiennymi N, tworząc pomiędzy powierzchniami czołowymi tych magnesów trwałych szczelinę osiową powietrzną (δ<sub>a</sub>). Obudowa łożyska zamknięta jest od góry pokrywą (7), wraz z osadzonym we wnęce uszczelnieniem z cieczą magnetyczną, złożonym z wielokrawędziowego nabiegunnika (9) i pierścieniowego magnesu trwałego (8) spolaryzowanego osiowo. Na wewnętrznej powierzchni cylindrycznej wielokrawędziowego nabiegunnika (9) wykonane są występy uszczelniające, zaś ciecz magnetyczna (10) znajduje się w szczelinach pierścieniowych (δ) pomiędzy występami uszczelniającymi wielokrawędziowego nabiegunnika (9), a powierzchnią wałka (1).The transverse-longitudinal magnetic bearing of the shaft has a permanent magnet (3) with an E-shaped cross-section attached to the pin (1a) of the shaft (1). A permanent magnet (4), also with an E-shaped cross-section, is mounted in the socket (2a) of the housing (2), and both permanent magnets (3, 4) are located concentrically to the shaft axis. In the cavity (1b) on the front surface of the pin (1a) of the shaft (1) and in the cavity (2b) on the internal front surface of the housing (2), cylindrical permanent magnets (5, 6) are mounted, axially polarized and positioned with the same poles N , creating an axial air gap (δ<sub>a</sub>) between the front surfaces of these permanent magnets. The bearing housing is closed at the top with a cover (7) with a magnetic liquid seal embedded in the cavity, consisting of a multi-edge pole piece (9) and an axially polarized ring permanent magnet (8). Sealing projections are made on the inner cylindrical surface of the multi-edge pole piece (9), and the magnetic fluid (10) is located in the annular gaps (δ) between the sealing projections of the multi-edge pole piece (9) and the surface of the shaft (1).

PL442245A 2022-09-12 2022-09-12 Transverse and longitudinal magnetic bearing of the shaft PL442245A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL442245A PL442245A1 (en) 2022-09-12 2022-09-12 Transverse and longitudinal magnetic bearing of the shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL442245A PL442245A1 (en) 2022-09-12 2022-09-12 Transverse and longitudinal magnetic bearing of the shaft

Publications (1)

Publication Number Publication Date
PL442245A1 true PL442245A1 (en) 2024-03-18

Family

ID=90300675

Family Applications (1)

Application Number Title Priority Date Filing Date
PL442245A PL442245A1 (en) 2022-09-12 2022-09-12 Transverse and longitudinal magnetic bearing of the shaft

Country Status (1)

Country Link
PL (1) PL442245A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3614181A (en) * 1970-07-02 1971-10-19 Us Air Force Magnetic bearing for combined radial and thrust loads
CN108980360A (en) * 2018-08-13 2018-12-11 广西科技大学 A kind of magnetic source parallel connection type magnetic fluid sealing structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3614181A (en) * 1970-07-02 1971-10-19 Us Air Force Magnetic bearing for combined radial and thrust loads
CN108980360A (en) * 2018-08-13 2018-12-11 广西科技大学 A kind of magnetic source parallel connection type magnetic fluid sealing structure

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