一种用于风力发电变桨轴承

Abstract

本实用新型涉及风力发电设备技术领域，具体为一种用于风力发电变桨轴承，包括轴承外圈、轴承内圈、轴向滚子；所述轴承外圈设置有外圈滚道和外圈挡边；所述外圈滚道与所述外圈挡边之间设置有外圈储油槽；所述轴承内圈相对于所述轴承外圈旋转；所述轴承内圈设置有内圈滚道和内圈挡边，所述内圈滚道和所述内圈挡边之间设置有内圈储油槽；所述轴承外圈和所述轴承内圈的其中一个联接到风力涡轮叶片，并且所述轴承外圈和所述轴承内圈中的另一个联接到风力涡轮的转子毂。其在环形套圈上集成内凹滚道与双侧挡边，通过拓扑优化技术精准控制凹槽深度与过渡曲率，实现结构减重的同时，保持套圈抗变形能力不变。

Claims

1. A wind power variable pitch bearing, characterized by: include The bearing outer ring is provided with an outer ring raceway and an outer ring flange; an outer ring oil reservoir is provided between the outer ring raceway and the outer ring flange; The bearing inner ring rotates relative to the bearing outer ring; the bearing inner ring is provided with an inner ring raceway and an inner ring flange, and an inner ring oil reservoir is provided between the inner ring raceway and the inner ring flange; one of the bearing outer ring and the bearing inner ring is connected to a wind turbine blade, and the other of the bearing outer ring and the bearing inner ring is connected to the rotor hub of the wind turbine. Axial rollers, arranged in multiple rows, are positioned between the outer raceway and the inner raceway.

2. A variable pitch bearing for a wind turbine generator according to claim 1, characterized in that: It also includes radial rollers between the inner and outer rings of the bearing; the radial rollers rotate about an axial axis based on a rotation axis parallel to the blade.

3. A variable pitch bearing for a wind turbine generator according to claim 2, wherein: The radial rollers are cylindrical rollers.

4. A variable pitch bearing for a wind turbine generator according to claim 1, wherein: The outer ring flange contacts one side of the end face of the axial roller, and the outer ring raceway contacts one side of the circumferential surface of the axial roller, so that the outer ring of the bearing limits one side of the axial roller.

5. A variable pitch bearing for a wind turbine generator according to claim 4, wherein: The inner ring retaining edge contacts the other side of the end face of the axial roller, and the inner ring raceway contacts the other side of the circumferential surface of the axial roller, so that the bearing inner ring limits the other side of the axial roller.

6. A variable pitch bearing for a wind turbine generator according to claim 5, wherein: The inner ring of the bearing is fixed to the outer ring of the bearing by means of the axial rollers.

7. A variable pitch bearing for a wind turbine generator according to claim 1, wherein: The bearing outer ring includes a first half outer ring and a second half outer ring, and the first half outer ring is fixed to the second half outer ring by bolts.

8. A variable pitch bearing for a wind turbine generator according to claim 1, wherein: The axial rollers have at least two rows.

9. A variable pitch bearing for a wind turbine generator according to claim 1, wherein: The axial roller is provided with a retainer for fixing the axial roller.

10. A variable pitch bearing for a wind turbine generator according to claim 1, characterized in that: The axial rollers are cylindrical rollers.

Images