Improved bearing systems and methods for adjusting pivot offsets of bearing systems. The improved bearing systems and methods provide offset pivot adjustability. When an adjustable offset pad insert is installed one way, one pivot offset is set. The pivot offset may be adjusted and set another way b
Improved bearing systems and methods for adjusting pivot offsets of bearing systems. The improved bearing systems and methods provide offset pivot adjustability. When an adjustable offset pad insert is installed one way, one pivot offset is set. The pivot offset may be adjusted and set another way by removing the adjustable offset pad insert, rotating it 180 degrees and installing the adjustable offset pad insert back in the journal pad.
대표청구항▼
1. An apparatus for adjusting the offset of a bearing assembly, wherein the length of the apparatus is greater than the width of the apparatus which is greater than the height of the apparatus, comprising: a substantially flat bottom surface, wherein the substantially flat bottom surface forms the l
1. An apparatus for adjusting the offset of a bearing assembly, wherein the length of the apparatus is greater than the width of the apparatus which is greater than the height of the apparatus, comprising: a substantially flat bottom surface, wherein the substantially flat bottom surface forms the length and width of the apparatus,a top surface, wherein the top surface is parallel to the substantially flat bottom surface; anda spherical seat formed in the top surface, wherein the spherical seat is substantially centered along an axis running the length of the apparatus and offset along an axis running the width of the apparatus. 2. The apparatus of claim 1, further comprising a chamfer formed in the top surface, wherein the chamfer is substantially centered along the axis running the length of the apparatus, and the chamfer is formed in an edge of the top surface, wherein the edge is parallel to the axis running the width of the apparatus and is furthest from the spherical seat. 3. The apparatus of claim 2, wherein the apparatus is adapted to be inserted into a pad of the bearing assembly in a first orientation and a second orientation, wherein the first orientation is 180 degrees from the second orientation. 4. The apparatus of claim 3, wherein the apparatus is adapted to change the pivot offset of the bearing assembly from a 50% pivot offset to a 55% pivot offset. 5. The apparatus of claim 1, wherein the apparatus is adapted to be inserted into a pad of the bearing assembly in a first orientation and a second orientation, wherein the first orientation is 180 degrees from the second orientation. 6. The apparatus of claim 5, wherein the apparatus is adapted to change the pivot offset of the bearing assembly from a 55% pivot offset to a 60% pivot offset. 7. The apparatus of claim 1, wherein the apparatus is made from bronze or steel. 8. A method for adjusting a bearing assembly, the bearing assembly having a plurality of pads and an adjustable offset pad insert mounted within one of the plurality of pads, the method comprising: dismounting the adjustable offset pad insert from the pad;rotating the adjustable offset pad insert 180 degrees from its initial position; andmounting the adjustable offset pad insert with the pad in an orientation that is 180 degrees from its initial pre-rotation position. 9. The method of claim 8, wherein the adjustable offset pad is oblong. 10. The method of claim 8, wherein the adjustable offset pad insert comprises a spherical seat formed in a top surface, wherein the spherical seat is substantially centered along an axis running a length of the adjustable offset pad insert and offset along an axis running a width of the adjustable offset pad insert, wherein the length is longer than the width. 11. The method of claim 10, wherein the adjustable offset pad includes a relief chamfer formed in the top surface, wherein the top surface is opposite to the surface mounted with the pad,wherein the chamfer is substantially centered along the axis running the length of the adjustable offset pad insert, and the relief chamfer is formed in an edge of the top surface, wherein the edge is parallel to the axis running the width of the adjustable offset pad insert and is furthest from the spherical seat. 12. The method of claim 8, further comprising: adjusting the pivot offset. 13. The method of claim 12, wherein adjusting the pivot offset includes adjusting the pivot offset from 49-51% to a 54-56% pivot offset. 14. A bearing assembly for supporting a rotatable member, comprising: a bearing casing having an inner surface;a plurality of pads mounted to the inner surface of the bearing casing, wherein the plurality of pads each have a counterbore;an adjustable offset pad insert mounted with the counterbore of one of the plurality of pads, wherein the offset pad insert is oblong. 15. The bearing assembly of claim 14, wherein the adjustable offset pad insert comprises a spherical seat formed in a top surface opposite to the surface mounted with the counterbore, wherein the spherical seat is substantially centered along an axis running a length of the adjustable offset pad insert and offset along an axis running the width of the adjustable offset pad insert. 16. The bearing assembly of claim 15, wherein the adjustable offset pad insert includes a chamfer formed in the top surface of the adjustable offset pad insert, wherein the top surface is opposite to the surface mounted with the counterbore,wherein the chamfer is substantially centered along an axis running a length of the adjustable offset pad insert and the chamfer is formed in an edge of the top surface, wherein the edge is parallel to the axis running the width of the adjustable offset pad insert and is furthest from the spherical seat. 17. The bearing assembly of claim 14, wherein the adjustable offset pad insert is adapted to change the pivot offset of the bearing assembly. 18. The bearing assembly of claim 14, wherein the adjustable offset pad insert is adapted to change the pivot offset of the bearing assembly from a 50% pivot offset to a 55% pivot offset. 19. The bearing assembly of claim 14, wherein the bearing assembly comprises a journal bearing. 20. The bearing assembly of claim 14, wherein the adjustable offset pad insert is made from bronze or steel.
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이 특허에 인용된 특허 (36)
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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