Device for sealing shaft bearings or shaft bearing housings
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0099456
(1987-09-21)
|
우선권정보 |
AT-0002551 (1986-09-24) |
발명자
/ 주소 |
- Senft Helmut (Graz ATX) Hasenrath Peter (Graz ATX)
|
출원인 / 주소 |
- Maschinenfabrik Andritz Actiengesellschaft (Graz ATX 03)
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
4 |
초록
▼
The invention relates to a device for sealing shaft bearings or shaft bearing housing, in particular of self-aligning roller bearings for prepressing rollers or the like, having a special ring or special sleeve which surrounds the shaft, is advantageously made of stainless steel and has on the outer
The invention relates to a device for sealing shaft bearings or shaft bearing housing, in particular of self-aligning roller bearings for prepressing rollers or the like, having a special ring or special sleeve which surrounds the shaft, is advantageously made of stainless steel and has on the outer circumferential surface at least one annular projection which extends into at least one annular groove at at least one end of the bearing housing. According to the invention the concern here is primarily to inexpensively develop bearing housings, in particular production bearing housings, for operating conditions with exacting requirements on the sealing of the bearing. According to the invention this is mainly achieved when the annular projection or projections (7) of the special ring or special sleeve (2) inserted in the housing (1) and enclosing the shaft with sealed (3′) clearance are fitted into the housing groove(s) (10) for the standard seal(s) (6) of production bearing housings (1), and when at least one, expediently two annular recesses (3) for a radial lip seal(s) (3′) are provided on the inner circumferential surface (9), preferably on the front end(s) (11,12) of the special ring or special sleeve (2).
대표청구항
▼
A sealing bearing assembly for a shaft, comprising, a bearing housing which has, at one end thereof, an annular groove with a bottom surface, a first sleeve which surrounds and is immediately mounted on the shaft with a sealed clearance between the first sleeve and the shaft, said first sleeve being
A sealing bearing assembly for a shaft, comprising, a bearing housing which has, at one end thereof, an annular groove with a bottom surface, a first sleeve which surrounds and is immediately mounted on the shaft with a sealed clearance between the first sleeve and the shaft, said first sleeve being inserted in said bearing housing, said first sleeve having an outer circumferential surface provided with an annular projection which is fitted into the groove of the bearing housing, said projection being spaced from the bottom of the groove to provide a space, an annular seal in the space between the projection and the bottom of the groove, said first sleeve having at least one end with an inner circumferential surface provided with an annular recess, and a radial lip seal in said annular recess of the first sleeve, said first sleeve having at least one end portion that has a greater diameter than the portion that is beside the annular projection whereby, progressing in an axial direction, the first sleeve forms a step from its center toward its end, said shaft having an end area provided with an annular recess for forming a labyrinth seal, said first sleeve having an end which extends into the annular recess of the shaft and is formed to define a labyrinth gap between the first sleeve and shaft.
이 특허에 인용된 특허 (4)
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Tooley Robert W. (Osceola IN), Bearing seal.
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Carrigan ; Erwin R., Seal for self-aligning bearing.
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Brandenstein Manfred (Eussenheim DEX) Edelmann Ludwig (Sulzthal DEX) Kaschube Karl-Friedrich (Niederwerrn DEX), Sealed roller bearing.
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Orlowski David C. (Milan IL), Sealing assembly.
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Brandon, Dennis; Flack, Allan, Electric generator and motor drive system.
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Brandon, Dennis; Flack, Allan, Electric generator and motor drive system.
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Brandon, Dennis; Flack, Allan, Electric riding lawn mower powered by an internal combustion engine and generator system.
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Rockwood Robert E. (Windham NH), Pump oil mister with reduced windage.
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