Lubrication system for a bearing
View Patent ↗A lubrication system is provided for a bearing with a stationary inner ring and a rotating outer ring. The lubrication system includes a distribution ring attached to the outer ring for distributing a lubricant in the bearing. The distribution ring includes transport openings directed towards the bearing for transportation of the lubricant from a lower position of the outer ring to an upper position of the outer ring.
1. A lubrication system for a bearing, the bearing having a stationary inner ring and a rotating outer ring, the lubrication system comprising:
a distribution ring attached to the outer ring for distributing a lubricant in the bearing, the distribution ring comprising transport openings directed towards the bearing for transportation of the lubricant from a lower position of the outer ring to an upper position of the outer ring,
a first type of transport opening for transporting the lubricant for a first sense of rotation and a second type of transport opening for transporting the lubricant for a second sense of rotation.
2. The lubrication system according to claim 1 , comprising two distribution rings attached at two face sides of the outer ring.
3. The lubrication system according to claim 1 , wherein the transport openings are formed in an inner face side surface of the distribution ring.
4. The lubrication system according to claim 1 , wherein the transport openings are formed in an inner circumferential surface of the distribution ring.
5. The lubrication system according to claim 1 , wherein the lubricant is oil.
6. The lubrication system according to claim 1 , wherein multiple transport openings are evenly distributed along a perimeter of the distribution ring.
7. The lubrication system according to claim 1 , wherein the distribution ring is divided into at least two rings.
8. A bearing, comprising:
a stationary inner ring;
a rotating outer ring; and
a lubrication system for the bearing as claimed in claim 1 .
9. A wind turbine, comprising:
a tower;
a main shaft connected to the tower;
a blade hub having blades connected thereto; and
a main bearing rotatively connecting the blade hub to the main shaft, the main bearing comprising:
a stationary inner ring;
a rotating outer ring; and
a lubrication system for the bearing as claimed in claim 1 .
10. A lubrication system for a bearing, the bearing having a stationary inner ring and a rotating outer ring, the lubrication system comprising:
a distribution ring attached to the outer ring for distributing a lubricant in the bearing, the distribution ring comprising transport openings directed towards the bearing for transportation of the lubricant from a lower position of the outer ring to an upper position of the outer ring,
wherein the transport opening comprises a hole wherein a center line of the hole has an angle off a radial direction, and an adjacent pocket in communication with the hole.
11. The lubrication system according to claim 10 , wherein the angle lies in the range of 10 to 35 degree.
12. A bearing, comprising:
a stationary inner ring;
a rotating outer ring; and
a lubrication system for the bearing as claimed in claim 10 .
13. A wind turbine, comprising:
a tower;
a main shaft connected to the tower;
a blade hub having blades connected thereto; and
a main bearing rotatively connecting the blade hub to the main shaft, the main bearing comprising:
a stationary inner ring;
a rotating outer ring; and
a lubrication system for the bearing as claimed in claim 10 .
14. A lubrication system for a bearing, the bearing having a stationary inner ring and a rotating outer ring, the lubrication system comprising:
a distribution ring attached to the outer ring for distributing a lubricant in the bearing, the distribution rim comprising transport openings directed towards the bearing for transportation of the lubricant from a lower position of the outer ring to an upper position of the outer ring,
wherein the transport opening comprises a hole in a radial direction with a wider part which lies radial outwardly.
15. A bearing, comprising:
a stationary inner ring;
a rotating outer ring; and
a lubrication system for the bearing as claimed in claim 14 .
16. A wind turbine, comprising:
a tower;
a main shaft connected to the tower;
a blade hub having blades connected thereto; and
a main bearing rotatively connecting the blade hub to the main shaft, the main bearing comprising:
a stationary inner ring;
a rotating outer ring; and
a lubrication system for the bearing as claimed in claim 14 .