PL406645A1 - Rotating shaft bushing with ferromagnetic seal - Google Patents

Rotating shaft bushing with ferromagnetic seal

Info

Publication number
PL406645A1
PL406645A1 PL406645A PL40664513A PL406645A1 PL 406645 A1 PL406645 A1 PL 406645A1 PL 406645 A PL406645 A PL 406645A PL 40664513 A PL40664513 A PL 40664513A PL 406645 A1 PL406645 A1 PL 406645A1
Authority
PL
Poland
Prior art keywords
flange
movable
fixed
sleeve
ring
Prior art date
Application number
PL406645A
Other languages
Polish (pl)
Other versions
PL225291B1 (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 PL406645A priority Critical patent/PL225291B1/en
Publication of PL406645A1 publication Critical patent/PL406645A1/en
Publication of PL225291B1 publication Critical patent/PL225291B1/en

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

Abstract

Przedmiotem wynalazku jest przepust wału obrotowego z uszczelnieniem ferromagnetycznym, złożony z dwóch tulei kołnierzowych, dwóch pierścieni nośnych, magnesów trwałych spolaryzowanych osiowo, wielokrawędziowych nabiegunników i cieczy ferromagnetycznej, 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 pomiędzy obu kołnierzami (4a), (5a) występuje luz. W komorach powstałych pomiędzy tulejami (4), (5) i ich kołnierzami (4a), (5a), z jednej strony do kołnierza (4a) tulei nieruchomej (4) przylega pierścień nośny nieruchomy (9), w którym osadzone są walcowe magnesy trwałe (10), a w wytoczeniach tego pierścienia umieszczone są wielokrawędziowe nabiegunniki nieruchome (11). Z drugiej strony do kołnierza (5a) tulei ruchomej (5) przylega pierścień nośny ruchomy (6), w którym osadzone są walcowe magnesy trwałe (7), a w wytoczeniach tego pierścienia umieszczone są wielokrawędziowe nabiegunniki ruchome (8). Ciecz ferromagnetyczna (12) znajduje się w pierścieniowych szczelinach utworzonych pomiędzy występami uszczelniającymi nabiegunników ruchomych (8), a wewnętrzną powierzchnią walcową tulei nieruchomej (4) oraz w pierścieniowych szczelinach utworzonych pomiędzy występami uszczelniającymi nabiegunników nieruchomych (11), a zewnętrzną powierzchnią walcową tulei ruchomej (5).The subject of the invention is a rotary shaft bushing with a ferromagnetic seal, consisting of two flange bushes, two support rings, axially polarized permanent magnets, multi-edge pole pieces and a ferromagnetic fluid, in which the fixed bushing (4) embedded in the housing (2) has a flange (4a) facing the shaft (1), the movable flange sleeve (5) mounted on the shaft (1) has a flange (5a) directed towards the housing (2), and there is looseness between both flanges (4a), (5a). In the chambers formed between the sleeves (4), (5) and their flanges (4a), (5a), on one side to the flange (4a) of the fixed sleeve (4) there is a fixed bearing ring (9), in which cylindrical magnets are mounted durable (10), and the grooves of this ring contain fixed edge poles (11). On the other hand, a movable support ring (6) adheres to the flange (5a) of the movable sleeve (5), in which cylindrical permanent magnets (7) are mounted, and in the grooves of this ring there are multi-edge movable pole shoes (8). The ferromagnetic liquid (12) is located in the annular gaps formed between the sealing protrusions of the movable pole pieces (8) and the inner cylindrical surface of the fixed sleeve (4) and in the annular gaps formed between the sealing protrusions of the fixed pole pieces (11) and the outer cylindrical surface of the movable sleeve (11). 5).

PL406645A 2013-12-23 2013-12-23 Rotating shaft bushing with ferromagnetic seal PL225291B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL406645A PL225291B1 (en) 2013-12-23 2013-12-23 Rotating shaft bushing with ferromagnetic seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL406645A PL225291B1 (en) 2013-12-23 2013-12-23 Rotating shaft bushing with ferromagnetic seal

Publications (2)

Publication Number Publication Date
PL406645A1 true PL406645A1 (en) 2015-07-06
PL225291B1 PL225291B1 (en) 2017-03-31

Family

ID=53492704

Family Applications (1)

Application Number Title Priority Date Filing Date
PL406645A PL225291B1 (en) 2013-12-23 2013-12-23 Rotating shaft bushing with ferromagnetic seal

Country Status (1)

Country Link
PL (1) PL225291B1 (en)

Also Published As

Publication number Publication date
PL225291B1 (en) 2017-03-31

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