PL420052A1 - Rotary shaft bushing with multi-stage sealing with magnetic fluid - Google Patents

Rotary shaft bushing with multi-stage sealing with magnetic fluid

Info

Publication number
PL420052A1
PL420052A1 PL420052A PL42005216A PL420052A1 PL 420052 A1 PL420052 A1 PL 420052A1 PL 420052 A PL420052 A PL 420052A PL 42005216 A PL42005216 A PL 42005216A PL 420052 A1 PL420052 A1 PL 420052A1
Authority
PL
Poland
Prior art keywords
flange
sleeve
movable
fixed
magnetic fluid
Prior art date
Application number
PL420052A
Other languages
Polish (pl)
Other versions
PL235929B1 (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 PL420052A priority Critical patent/PL235929B1/en
Publication of PL420052A1 publication Critical patent/PL420052A1/en
Publication of PL235929B1 publication Critical patent/PL235929B1/en

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

Abstract

Przepust wału obrotowego z wielostopniowym uszczelnieniem z cieczą magnetyczną, złożony z dwóch tulei kołnierzowych, magnesów trwałych spolaryzowanych osiowo, wielokrawędziowych nabiegunników i cieczy magnetycznej, w którym tuleja kołnierzowa nieruchoma (4) osadzona w obudowie (2) ma kołnierz (4a) skierowany w stronę wału (1), tuleja kołnierzowa ruchoma (5) osadzona na wale (1) ma kołnierz (5a) skierowany w stronę obudowy (2), a po obu stronach kołnierza (4a) tulei nieruchomej (4) i kołnierza (5a) tulei ruchomej (5), umieszczone są magnesy trwałe (6, 8) i wielokrawędziowe nabiegunniki (7, 9), przy czym pomiędzy tuleją nieruchomą (4) wraz z magnesami (6) i nabiegunnikami (7), a pomiędzy tuleją ruchomą (5) wraz z magnesami (8) i nabiegunnikami (9) występuje luz osiowy i promieniowy, zaś ciecz magnetyczna (10) znajduje się w pierścieniowych szczelinach, utworzonych pomiędzy występami uszczelniającymi nabiegunników nieruchomych (7), a zewnętrzną, cylindryczną powierzchnią tulei kołnierzowej ruchomej (5) oraz w pierścieniowych szczelinach, utworzonych pomiędzy występami uszczelniającymi nabiegunników ruchomych (9), a wewnętrzną, cylindryczną powierzchnią tulei kołnierzowej nieruchomej (4).Rotary shaft bushing with a multi-stage seal with magnetic liquid, consisting of two flange sleeves, axially polarized permanent magnets, multi-edge pole pieces and magnetic fluid, in which the fixed flange sleeve (4) embedded in the housing (2) has a flange (4a) facing the shaft (1), the movable flange (5) mounted on the shaft (1) has a flange (5a) facing the housing (2), and on both sides of the flange (4a) of the fixed sleeve (4) and the flange (5a) of the movable sleeve ( 5), permanent magnets (6, 8) and multi-edge pole pieces (7, 9) are placed, while between the fixed sleeve (4) together with magnets (6) and the pole pieces (7), and between the movable sleeve (5) with magnets (8) and pole shoes (9) have axial and radial clearance, while the magnetic fluid (10) is in the annular gaps formed between the sealing lugs of fixed pole shoes (7) and the outer one, the indical surface of the movable flange sleeve (5) and in the annular gaps formed between the sealing protrusions of the movable pole pieces (9) and the inner cylindrical surface of the fixed flange sleeve (4).

PL420052A 2016-12-30 2016-12-30 Rotary shaft bushing with multi-stage sealing with magnetic fluid PL235929B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL420052A PL235929B1 (en) 2016-12-30 2016-12-30 Rotary shaft bushing with multi-stage sealing with magnetic fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL420052A PL235929B1 (en) 2016-12-30 2016-12-30 Rotary shaft bushing with multi-stage sealing with magnetic fluid

Publications (2)

Publication Number Publication Date
PL420052A1 true PL420052A1 (en) 2018-07-02
PL235929B1 PL235929B1 (en) 2020-11-16

Family

ID=62705240

Family Applications (1)

Application Number Title Priority Date Filing Date
PL420052A PL235929B1 (en) 2016-12-30 2016-12-30 Rotary shaft bushing with multi-stage sealing with magnetic fluid

Country Status (1)

Country Link
PL (1) PL235929B1 (en)

Also Published As

Publication number Publication date
PL235929B1 (en) 2020-11-16

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