Five-axial groove cylindrical journal bearing with pressure dams for bi-directional rotation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16C-033/10
F16C-017/02
F16C-033/02
F16C-017/10
출원번호
US-0275314
(2014-05-12)
등록번호
US-9410572
(2016-08-09)
발명자
/ 주소
Shoup, Thomas Patrick
Lawrence, Jeffrey
출원인 / 주소
Lufkin Industries, LLC
대리인 / 주소
Sutton McAughan Deaver PLLC
인용정보
피인용 횟수 :
5인용 특허 :
30
초록▼
A five-axial groove cylindrical journal bearing assembly with pressure dams designed for bi-directional rotation for rotatably supporting a rotating body provided with a babbitted inner surface. The journal bearing assembly has two pressure dams that are substantially mirror images of each other alo
A five-axial groove cylindrical journal bearing assembly with pressure dams designed for bi-directional rotation for rotatably supporting a rotating body provided with a babbitted inner surface. The journal bearing assembly has two pressure dams that are substantially mirror images of each other along a centerline between the pressure dams and has two pressure dams each located substantially opposite the direction of two vector loads of the journal bearing assembly.
대표청구항▼
1. A cylindrical hydrodynamic journal bearing assembly, comprising: an inner surface;a first pressure dam and a second pressure dam machined into the inner surface, wherein the first pressure dam and the second pressure dam are substantially mirror images of each other along a centerline between the
1. A cylindrical hydrodynamic journal bearing assembly, comprising: an inner surface;a first pressure dam and a second pressure dam machined into the inner surface, wherein the first pressure dam and the second pressure dam are substantially mirror images of each other along a centerline between the first pressure dam and the second pressure dam; anda plurality of axial grooves machined in the inner surface to form a plurality of fixed bearing pads, wherein the axial grooves are substantially circumferentially and symmetrically positioned on the inner surface; andwherein the first pressure dam, the second pressure dam and the plurality of axial grooves are positioned to permit bi-directional gearbox rotation. 2. The bearing assembly of claim 1, wherein the first pressure dam is located substantially opposite the direction of a first vector load of the journal bearing assembly; andthe second pressure dam is located substantially opposite the direction of a second vector load of the journal bearing assembly. 3. The bearing assembly of claim 1, wherein the first pressure dam and the second pressure dam are circumferential rectangular reliefs of uniform depth. 4. The bearing assembly of claim 1, wherein plurality of axial grooves are rectangular reliefs of non-uniform depth. 5. The bearing assembly of claim 1, wherein the plurality of axial grooves comprises a first axial groove, a second axial groove, a third axial groove, a fourth axial groove and a fifth axial groove. 6. The bearing assembly of claim 1, wherein the plurality of fixed bearing pads comprises a first fixed bearing pad, a second fixed bearing pad, a third fixed bearing pad, a fourth fixed bearing pad, and a fifth fixed bearing pad. 7. The bearing assembly of claim 1, wherein the journal bearing assembly comprises two halves. 8. The bearing assembly of claim 1, wherein the inner surface includes a babbitted surface. 9. A hydrodynamic journal bearing assembly, comprising: an inner surface;a first pressure dam and a second pressure dam machined into the inner surface, the first pressure dam is located substantially opposite the direction of a first vector load of the journal bearing assembly; andthe second pressure dam is located substantially opposite the direction of a second vector load of the journal bearing assembly;anda plurality of axial grooves machined in the inner surface to form a plurality of fixed bearing pads, wherein the axial grooves are substantially circumferentially and symmetrically positioned on the inner surface;wherein the first pressure dam, the second pressure dam and the plurality of axial grooves are positioned to permit bi-directional gearbox rotation. 10. The bearing assembly of claim 9, wherein the first pressure dam and the second pressure dam are substantially mirror images of each other along a centerline between the first pressure dam and the second pressure dam. 11. The bearing assembly of claim 9, wherein the first pressure dam and the second pressure dam are circumferential rectangular reliefs of uniform depth. 12. The bearing assembly of claim 9, wherein plurality of axial grooves are rectangular reliefs of non-uniform depth. 13. The bearing assembly of claim 9, wherein the plurality of grooves comprises a first axial groove, a second axial groove, a third axial groove, a fourth axial groove and a fifth axial groove. 14. The bearing assembly of claim 9, wherein the plurality of fixed bearing pads comprises a first fixed bearing pad, a second fixed bearing pad, a third fixed bearing pad, a fourth fixed bearing pad, and a fifth fixed bearing pad. 15. The bearing assembly of claim 9, wherein the journal bearing assembly comprises two halves. 16. The bearing assembly of claim 9, wherein the inner surface includes a babbitted surface. 17. A method of manufacturing a hydrodynamic journal bearing assembly, wherein the journal bearing includes an inner surface, comprising: machining a first pressure dam and a second pressure dam on the inner surface, wherein the first pressure dam and the second pressure dam are substantially mirror images of each other along a centerline between the first pressure dam and the second pressure dam, andwherein the first pressure dam and the second pressure dam permit bi-directional gearbox rotation; andmachining a plurality of axial grooves machined on the inner surface to form a plurality of fixed bearing pads, wherein the axial grooves are substantially circumferentially and symmetrically positioned on the inner surface; andwherein the axial grooves permit bi-directional gearbox rotation. 18. The method of claim 17, wherein the first pressure dam is located substantially opposite the direction of a first vector load of the journal bearing assembly; andthe second pressure dam is located substantially opposite the direction of a second vector load of the journal bearing assembly. 19. The bearing assembly of claim 17, wherein the first pressure dam and the second pressure dam are circumferential rectangular reliefs of uniform depth. 20. The method of claim 17, wherein the journal bearing assembly comprises two halves.
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이 특허에 인용된 특허 (30)
Sigg Hans (Mutschellen CHX), Cant segment-radial bearing for heavily loaded high-speed shafts.
Corratti Anthony A. (30 Rennie Rd. Catskill NY 12414) Dewhurst Edward A. (774 Westmoreland Dr. Niskayuna NY 12309), Double tilting pad journal bearing.
Ide Russell D. (P.O. Box 744 ; 641 Arnold Rd. Coventry RI 02816), Hydrodynamic bearings having beam mounted bearing pads and sealed bearing assemblies including the same.
Ide Russell D. (P.O. Box 744 ; 641 Arnold Rd. Coventry RI 02816), Hydrodynamic bearings having beam mounted bearing pads and sealed bearing assemblies including the same.
Keck Richard J. (Halfmoon NY) Wilson Blake W. (Scotia NY) Wegner Gary G. (Pewaukee WI) Byrne Thomas R. (Port Washington WI), Tilt pad journal bearing assembly with self-contained hydrostatic lift provisions.
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