Bearing assemblies including integrated lubrication, bearing apparatuses, and methods of use
View Patent ↗Embodiments disclosed herein are directed to bearing assemblies that include integrated lubrication, bearing apparatuses including such bearing assemblies, and related methods. For example, a lubricated bearing assembly may include a lubricant that may lubricate the bearing surface thereof during operation of the lubricated bearing assembly and/or bearing apparatus including the lubricated bearing assembly.
1. A bearing assembly, comprising:
a support ring;
a plurality of superhard bearing elements mounted on the support ring, each of the plurality of superhard bearing elements including a superhard bearing surface; and
one or more lubricant bodies at least partially laterally surrounding at least some of the plurality of superhard bearing elements, the one or more lubricant bodies being moveable relative to the superhard bearing surfaces of the plurality of superhard bearing elements, the one or more lubricant bodies including a lubrication surface.
2. The bearing assembly of claim 1 , further comprising one or more biasing elements positioned adjacent to at least one of the one or more lubrication bodies and configured to move the at least one lubricant body away from the support ring.
3. The bearing assembly of claim 2 , wherein the one or more biasing elements includes a spring.
4. The bearing assembly of claim 3 wherein the spring includes a washer spring.
5. The bearing assembly of claim 3 , wherein the one or more lubricant bodies extend to a periphery of the support ring.
6. The bearing assembly of claim 3 , wherein the one or more lubricant bodies is a single lubricant body that laterally surrounds each of the plurality of superhard bearing elements.
7. The bearing assembly of claim 1 , wherein the one or more lubricant bodies laterally surround two or more of the plurality of superhard bearing elements.
8. The bearing assembly of claim 1 , wherein the plurality of superhard bearing elements are arranged about a rotation axis in a single row or in multiple rows.
9. The bearing assembly of claim 1 , wherein each of the one or more lubricant bodies laterally surrounds a corresponding superhard bearing element of the plurality of superhard bearing elements.
10. The bearing assembly of claim 1 , wherein the one or more lubricant bodies includes a chamfer extending between a periphery thereof and the lubrication surface.
11. The bearing assembly of claim 1 wherein the one or more lubricant bodies includes one or more of graphite, hexagonal boron nitride (“HBN”), tungsten disulfide, or molybdenum disulfide.
12. The bearing assembly of claim 1 wherein the superhard bearing surfaces and the one or more lubricant surfaces lie substantially on the same imaginary surface.
13. A bearing apparatus, comprising:
a first bearing assembly including one or more bearing surfaces; and
a second bearing assembly including:
a plurality of superhard bearing elements; and
at least one lubricant body including a lubrication surface, the at least one lubricant body including at least one opening through which at least one of the plurality of the superhard bearing elements is received.
14. The bearing apparatus of claim 13 , wherein the second bearing assembly includes one or more urging elements movable relative to the plurality of superhard bearing elements, the one or more urging elements being configured to move at least one of the one or more lubricant bodies relative to the plurality of superhard bearing elements.
15. A method of operating a bearing apparatus, the method comprising:
producing a relative rotation between a first bearing assembly and a second bearing assembly, while at least some first superhard bearing surfaces of the first bearing assembly engage with at least some second bearing surfaces of the second bearing assembly; and
biasing one or more lubricant surfaces from the first bearing assembly against at least one of the second bearing surfaces of the second bearing assembly, thereby transferring lubricant from the one or more lubricant surfaces onto at least one of the second bearing surfaces.
16. The method of claim 15 , wherein biasing one or more lubricant surfaces from the first bearing assembly against at least one second bearing surface of the second bearing assembly includes biasing the one or more lubricant surfaces from the first bearing assembly against the at least one second bearing surface of the second bearing assembly via a spring.
17. The method of claim 15 , further comprising transferring lubricant from the second superhard bearing surfaces onto the first superhard bearing surfaces.
18. The method of claim 15 , wherein the first bearing assembly includes one or more lubricant bodies defining corresponding ones of the one or more lubricant surfaces.
19. The method of claim 15 , wherein one or more lubricant surfaces surround two or more of the first superhard bearing surfaces.