PL411000A1 - Hybrid sealing of a rotary shaft - Google Patents

Hybrid sealing of a rotary shaft

Info

Publication number
PL411000A1
PL411000A1 PL411000A PL41100015A PL411000A1 PL 411000 A1 PL411000 A1 PL 411000A1 PL 411000 A PL411000 A PL 411000A PL 41100015 A PL41100015 A PL 41100015A PL 411000 A1 PL411000 A1 PL 411000A1
Authority
PL
Poland
Prior art keywords
flange
rotary shaft
pole piece
magnets
inner pole
Prior art date
Application number
PL411000A
Other languages
Polish (pl)
Other versions
PL225401B1 (en
Inventor
Leszek Matuszewski
Original Assignee
Politechnika Gdańska
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 Politechnika Gdańska filed Critical Politechnika Gdańska
Priority to PL411000A priority Critical patent/PL225401B1/en
Publication of PL411000A1 publication Critical patent/PL411000A1/en
Publication of PL225401B1 publication Critical patent/PL225401B1/en

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Landscapes

  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

Hybrydowe uszczelnienie wału obrotowego, w którym w gnieździe obudowy (2) osadzone są dwa magnesy trwałe (4, 5), przedzielone wewnętrznym nabiegunnikiem (6) o przekroju poprzecznym prostokątnym, a do zewnętrznych powierzchni bocznych magnesów (4, 5) przylegają zewnętrzne nabiegunniki (7) o przekroju poprzecznym w kształcie litery "L". Magnesy (4, 5) przylegają do wewnętrznego nabiegunnika (6) oraz do nabiegunników zewnętrznych (7) biegunami jednoimiennymi, zaś ramiona nabiegunników zewnętrznych (7) położone są pod magnesami trwałymi (4, 5). Na wale obrotowym (1) osadzona jest tulejka kołnierzowa (3) z kołnierzem (3a) położonym pod nabiegunnikiem wewnętrznym (6), wyposażona w występy uszczelniające wykonane na zewnętrznej powierzchni walcowej kołnierza (3a) oraz na zewnętrznych walcowych powierzchniach tulejki (3), po obu stronach kołnierza (3a). Ciecz magnetyczna (8) znajduje się w szczelinach pierścieniowych (5), utworzonych pomiędzy występami uszczelniającymi tulejki kołnierzowej (3) wraz z kołnierzem (3a) a wewnętrznymi, walcowymi powierzchniami nabiegunników zewnętrznych (7) i nabiegunnika wewnętrznego (6).A hybrid rotary shaft seal in which two permanent magnets (4, 5) are mounted in the housing seat (2), separated by an inner pole piece (6) with a rectangular cross-section, and the outer pole shoes (4) adjoin the outer side surfaces of the magnets (4, 5) 7) with the "L" shaped cross-section. The magnets (4, 5) adhere to the inner pole piece (6) and the outer pole pieces (7) with identical poles, while the arms of the outer pole pieces (7) are located under permanent magnets (4, 5). The rotary shaft (1) has a flange bushing (3) with a flange (3a) located under the inner pole piece (6), equipped with sealing protrusions made on the outer cylindrical surface of the flange (3a) and on the external cylindrical surfaces of the sleeve (3), both sides of the collar (3a). The magnetic fluid (8) is located in the annular gaps (5) formed between the sealing lips of the flange sleeve (3) together with the flange (3a) and the inner cylindrical surfaces of the outer pole shoes (7) and the inner pole piece (6).

PL411000A 2015-01-19 2015-01-19 Hybrid sealing of a rotary shaft PL225401B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL411000A PL225401B1 (en) 2015-01-19 2015-01-19 Hybrid sealing of a rotary shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL411000A PL225401B1 (en) 2015-01-19 2015-01-19 Hybrid sealing of a rotary shaft

Publications (2)

Publication Number Publication Date
PL411000A1 true PL411000A1 (en) 2016-08-01
PL225401B1 PL225401B1 (en) 2017-04-28

Family

ID=56511111

Family Applications (1)

Application Number Title Priority Date Filing Date
PL411000A PL225401B1 (en) 2015-01-19 2015-01-19 Hybrid sealing of a rotary shaft

Country Status (1)

Country Link
PL (1) PL225401B1 (en)

Also Published As

Publication number Publication date
PL225401B1 (en) 2017-04-28

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