CN106594065A - Bearing and variable pitch bearing of wind generating set - Google Patents
Bearing and variable pitch bearing of wind generating set Download PDFInfo
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- CN106594065A CN106594065A CN201611223325.1A CN201611223325A CN106594065A CN 106594065 A CN106594065 A CN 106594065A CN 201611223325 A CN201611223325 A CN 201611223325A CN 106594065 A CN106594065 A CN 106594065A
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- 238000009434 installation Methods 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 9
- 238000005260 corrosion Methods 0.000 abstract description 11
- 230000007797 corrosion Effects 0.000 abstract description 10
- 239000004519 grease Substances 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7806—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for spherical roller bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/31—Wind motors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
本发明提供了一种轴承。所述轴承包括外圈(1)、内圈(2)以及分别位于外圈(1)和内圈(2)中的多个安装孔(3)，在位于外圈(1)和/或内圈(2)中的所述多个安装孔(3)中的至少一个处设置有通孔(4)，所述通孔(4)连通安装孔(3)与轴承内部。根据本发明的示例性实施例的轴承可具有改善的刚性和密封性，可防止内、外圈安装孔的腐蚀，并且可缓解油脂泄漏的问题。
The present invention provides a bearing. The bearing comprises an outer ring (1), an inner ring (2), and a plurality of mounting holes (3) respectively located in the outer ring (1) and the inner ring (2), and a through hole (4) is provided at at least one of the plurality of mounting holes (3) located in the outer ring (1) and/or the inner ring (2), and the through hole (4) connects the mounting hole (3) with the interior of the bearing. The bearing according to the exemplary embodiment of the present invention can have improved rigidity and sealing performance, can prevent corrosion of the mounting holes of the inner and outer rings, and can alleviate the problem of grease leakage.
Description
技术领域technical field
本发明属于轴承领域，具体地讲，涉及用于风力发电机组叶片变桨的变桨轴承。The invention belongs to the field of bearings, and in particular relates to a pitch-changing bearing used for pitch-changing blades of a wind power generating set.
背景技术Background technique
风力发电机的动力来自于叶片。当风速较大时，为使叶轮旋转速度和输入功率恒定以保证机组的安全、稳定运行，需要调整叶片角度。叶片与变桨轴承连接，并通过变桨轴承旋转实现叶片角度调整。因此，变桨轴承是风力发电机组的关键部件，其可靠性是机组能否安全、稳定运行的关键因素。Wind turbines are powered by blades. When the wind speed is high, in order to keep the impeller rotation speed and input power constant to ensure the safe and stable operation of the unit, it is necessary to adjust the blade angle. The blade is connected with the pitch bearing, and the blade angle is adjusted through the rotation of the pitch bearing. Therefore, the pitch bearing is a key component of the wind turbine, and its reliability is a key factor for the safe and stable operation of the turbine.
现有技术的风力发电机组的变桨轴承存在刚性差、内外圈安装孔易腐蚀等问题，因此导致变桨轴承容易断裂。The pitch bearing of the wind power generating set in the prior art has problems such as poor rigidity, easy corrosion of the mounting holes of the inner and outer rings, etc., thus causing the pitch bearing to break easily.
图1是现有技术的风力发电机组的变桨轴承的处于安装状态的示意性剖视图。Fig. 1 is a schematic cross-sectional view of a pitch bearing of a wind power generating set in the prior art in an installed state.
参照图1，现有技术的风力发电机组的变桨轴承可以包括外圈1和内圈2。外圈1可以通过螺栓9与叶片法兰7连接，内圈2可以通过螺栓9与轮毂法兰8连接。图1仅是说明性的，变桨轴承的外圈1和内圈2均可与叶片法兰7或轮毂法兰8连接。如图1所示，在螺栓9置于其中的安装孔3处容易发生腐蚀，并且因腐蚀点的形成而导致应力集中，使得变桨轴承容易断裂。通常，采用在安装孔3处喷涂防腐蚀材料的方法来防止变桨轴承的腐蚀，但是这种方法可靠性差，无法满足风力发电机组长达20年的使用要求。Referring to FIG. 1 , a pitch bearing of a wind power generating set in the prior art may include an outer ring 1 and an inner ring 2 . The outer ring 1 can be connected to the blade flange 7 through bolts 9 , and the inner ring 2 can be connected to the hub flange 8 through bolts 9 . FIG. 1 is only illustrative, and both the outer ring 1 and the inner ring 2 of the pitch bearing can be connected to the blade flange 7 or the hub flange 8 . As shown in FIG. 1 , corrosion easily occurs at the mounting hole 3 where the bolt 9 is placed, and stress concentration is caused due to the formation of corrosion points, so that the pitch bearing is easily broken. Usually, the method of spraying anti-corrosion material at the mounting hole 3 is used to prevent the corrosion of the pitch bearing, but this method has poor reliability and cannot meet the 20-year service requirements of the wind turbine.
发明内容Contents of the invention
本发明的一方面提供了一种具有高可靠性的轴承。An aspect of the present invention provides a bearing with high reliability.
本发明的另一方面提供了一种具有高可靠性的风力发电机组的变桨轴承。Another aspect of the present invention provides a pitch bearing of a wind power generating set with high reliability.
根据本发明的示例性实施例的轴承包括外圈、内圈以及分别位于外圈和内圈中的多个安装孔，在位于外圈和/或内圈中的所述多个安装孔中的至少一个处设置有通孔，所述通孔连通安装孔与轴承内部。A bearing according to an exemplary embodiment of the present invention includes an outer ring, an inner ring, and a plurality of mounting holes respectively located in the outer ring and the inner ring, and the mounting holes in the plurality of mounting holes located in the outer ring and/or the inner ring At least one place is provided with a through hole, and the through hole communicates with the installation hole and the inside of the bearing.
根据本发明的示例性实施例，在外圈的一个表面上可以设置有外圈密封安装盘。According to an exemplary embodiment of the present invention, an outer ring seal mounting disk may be provided on one surface of the outer ring.
根据本发明的示例性实施例，在内圈的一个表面上可以设置有内圈密封安装盘。可选地，所述内圈密封安装盘可以设置在内圈的与设置外圈密封安装盘的表面相对的表面上。According to an exemplary embodiment of the present invention, an inner ring seal mounting disc may be provided on one surface of the inner ring. Optionally, the inner ring seal mounting disc may be disposed on a surface of the inner ring opposite to the surface on which the outer ring seal mounting disc is disposed.
根据本发明的示例性实施例，在外圈的一个表面和/或内圈的一个表面上可以设置有加强盘，通孔可以位于加强盘中。According to an exemplary embodiment of the present invention, a reinforcing plate may be provided on one surface of the outer ring and/or one surface of the inner ring, and the through hole may be located in the reinforcing plate.
根据本发明的示例性实施例，在与外圈上的加强盘相对的一侧可以设置有外圈密封安装盘。According to an exemplary embodiment of the present invention, an outer ring seal mounting plate may be provided on a side opposite to the reinforcement plate on the outer ring.
根据本发明的示例性实施例，在与内圈上的加强盘相对的一侧可以设置有内圈密封安装盘。According to an exemplary embodiment of the present invention, an inner ring seal mounting plate may be provided on a side opposite to the reinforcement plate on the inner ring.
根据本发明的示例性实施例，在每个安装孔处可以设置有两个或多于两个的通孔。According to an exemplary embodiment of the present invention, two or more through holes may be provided at each mounting hole.
根据本发明的示例性实施例的风力发电机组的变桨轴承为所述轴承。The pitch bearing of the wind power generating set according to the exemplary embodiment of the present invention is the bearing.
根据本发明的示例性实施例的轴承，可以实现以下技术效果中的至少一个：能够防止内、外圈安装孔的腐蚀，从而避免因腐蚀而导致的应力集中，由此可提高轴承的可靠性；提高轴承的刚性和密封性；促进轴承内部的废油的排出，缓解油脂泄漏的问题。According to the bearing of the exemplary embodiment of the present invention, at least one of the following technical effects can be achieved: corrosion of the mounting holes of the inner and outer rings can be prevented, thereby avoiding stress concentration caused by corrosion, thereby improving the reliability of the bearing ; Improve the rigidity and sealing of the bearing; promote the discharge of waste oil inside the bearing, and alleviate the problem of grease leakage.
附图说明Description of drawings
图1是现有技术的风力发电机组的变桨轴承的处于安装状态的示意性剖视图。Fig. 1 is a schematic cross-sectional view of a pitch bearing of a wind power generating set in the prior art in an installed state.
图2是根据本发明的示例性实施例的轴承的示意性图示。Fig. 2 is a schematic illustration of a bearing according to an exemplary embodiment of the present invention.
图3是根据本发明的示例性实施例的轴承的处于安装状态的示意性剖视图。Fig. 3 is a schematic cross-sectional view of a bearing in an installed state according to an exemplary embodiment of the present invention.
图4是根据本发明的另一示例性实施例的轴承的处于安装状态的示意性剖视图。Fig. 4 is a schematic sectional view of a bearing in an installed state according to another exemplary embodiment of the present invention.
具体实施方式detailed description
在下文中，将参照附图详细地描述本发明的示例性实施例。Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
图2是根据本发明的示例性实施例的轴承的示意性图示。图3是根据本发明的示例性实施例的轴承的处于安装状态的示意性剖视图。图4是根据本发明的另一示例性实施例的轴承的处于安装状态的示意性剖视图。Fig. 2 is a schematic illustration of a bearing according to an exemplary embodiment of the present invention. Fig. 3 is a schematic cross-sectional view of a bearing in an installed state according to an exemplary embodiment of the present invention. Fig. 4 is a schematic sectional view of a bearing in an installed state according to another exemplary embodiment of the present invention.
参照图2和图3，根据本发明的示例性实施例的轴承包括外圈1、内圈2以及分别位于外圈1和内圈2中的多个安装孔3，在位于外圈1和/或内圈2中的所述多个安装孔3中的至少一个处设置有通孔4，通孔4连通安装孔3与轴承内部，使得轴承内部的油脂可通过通孔4流入安装孔3。2 and 3, a bearing according to an exemplary embodiment of the present invention includes an outer ring 1, an inner ring 2, and a plurality of mounting holes 3 respectively located in the outer ring 1 and the inner ring 2, and located in the outer ring 1 and/or Or at least one of the plurality of mounting holes 3 in the inner ring 2 is provided with a through hole 4 , the through hole 4 communicates the mounting hole 3 with the inside of the bearing, so that the grease inside the bearing can flow into the mounting hole 3 through the through hole 4 .
通孔4的位置、数量、形状和延伸方向不限于图中所示的情况，并可根据实际需要确定，例如，可根据轴承内部的油脂的流动情况确定，只要能够使轴承内部的油脂顺利地通过通孔4流入安装孔3即可。The position, quantity, shape and extension direction of the through hole 4 are not limited to the situation shown in the figure, and can be determined according to actual needs, for example, can be determined according to the flow of grease inside the bearing, as long as the grease inside the bearing can be smoothly Just flow into the installation hole 3 through the through hole 4 .
根据本发明的示例性实施例，由于外圈1通常比内圈2容易断裂，因此通孔4可仅设置在外圈1的至少一个安装孔3处，然而不限于此。可选地，通孔4可仅设置在内圈2的至少一个安装孔3处。可替代地，通孔4既可设置在外圈1的至少一个安装孔3处，又可设置在内圈2的至少一个安装孔3处。此外，通孔4可仅设置在损坏风险较大的安装孔3处，而无需设置在所有的安装孔3处，从而可降低成本。According to an exemplary embodiment of the present invention, since the outer ring 1 is generally easier to break than the inner ring 2 , the through hole 4 may be provided only at at least one mounting hole 3 of the outer ring 1 , but is not limited thereto. Optionally, the through hole 4 may only be provided at at least one mounting hole 3 of the inner ring 2 . Alternatively, the through hole 4 can be provided at least one mounting hole 3 of the outer ring 1 and at least one mounting hole 3 of the inner ring 2 . In addition, the through holes 4 can be provided only at the mounting holes 3 with a high risk of damage, instead of all the mounting holes 3, thereby reducing the cost.
虽然图3中示出了每个安装孔3处只设置一个通孔4，但是本发明不限于此。根据本发明的示例性实施例，在每个安装孔3处可设置有两个或多于两个的通孔4，从而可确保轴承内部的油脂顺利地流入安装孔3。可选地，所述两个或多于两个的通孔4可以设置在安装孔3的长度方向上的不同位置处。Although only one through hole 4 is provided at each mounting hole 3 in FIG. 3 , the present invention is not limited thereto. According to an exemplary embodiment of the present invention, two or more than two through holes 4 may be provided at each mounting hole 3 , so as to ensure that the grease inside the bearing flows into the mounting holes 3 smoothly. Optionally, the two or more than two through holes 4 may be arranged at different positions in the length direction of the installation hole 3 .
另外，图3中示出了通孔4可具有近似圆柱体形状并且可与安装孔3基本垂直地延伸，然而不限于此，通孔4可具有任意合适的形状并且可在轴承内部在任意合适的方向上延伸，例如，可以以弯曲形状延伸。In addition, it is shown in FIG. 3 that the through hole 4 may have an approximately cylindrical shape and may extend substantially perpendicularly to the mounting hole 3, however, it is not limited thereto, and the through hole 4 may have any suitable shape and may be located in any suitable position inside the bearing. extending in the direction, for example, may extend in a curved shape.
根据示例性实施例，在外圈1的一个表面上可以设置有外圈密封安装盘5，外圈密封安装盘5可以包括与安装孔3对应的孔。当从剖视的角度观察时，外圈密封安装盘5的宽度可大于外圈1的宽度。According to an exemplary embodiment, an outer ring seal installation disc 5 may be provided on one surface of the outer ring 1 , and the outer ring seal installation disc 5 may include holes corresponding to the installation holes 3 . When viewed from a sectional view, the width of the outer ring seal mounting plate 5 may be greater than the width of the outer ring 1 .
根据示例性实施例，在内圈2的一个表面上可以设置有内圈密封安装盘6，内圈密封安装盘6可以包括与安装孔3对应的孔。如图3所示，内圈密封安装盘6可设置在内圈2的与设置外圈密封安装盘5的表面相对的表面上。可选地，当从剖视的角度观察时，内圈密封安装盘6的宽度可大于内圈2的宽度。According to an exemplary embodiment, an inner ring seal installation disc 6 may be provided on one surface of the inner ring 2 , and the inner ring seal installation disc 6 may include holes corresponding to the installation holes 3 . As shown in FIG. 3 , the inner ring seal mounting disc 6 may be disposed on the surface of the inner ring 2 opposite to the surface on which the outer ring seal mounting disc 5 is disposed. Optionally, when viewed from a sectional view, the width of the inner ring seal mounting plate 6 may be greater than the width of the inner ring 2 .
虽然图3示出了同时设置有外圈密封安装盘5和内圈密封安装盘6，但是本发明不限于此。例如，根据本发明的示例性实施例的轴承可以仅包括外圈密封安装盘5和内圈密封安装盘6中的一个。Although FIG. 3 shows that the outer ring seal mounting plate 5 and the inner ring seal mounting plate 6 are provided at the same time, the present invention is not limited thereto. For example, the bearing according to the exemplary embodiment of the present invention may include only one of the outer ring seal mounting disc 5 and the inner ring seal mounting disc 6 .
如图3所示，在安装和使用根据本发明的示例性实施例的轴承的过程中，可以将螺栓9从设置有外圈密封安装盘5的一侧穿入外圈1，并且可以将螺栓9从设置有内圈密封安装盘6的一侧穿入内圈2，使得外圈1可以通过螺栓9与叶片法兰7连接，并且内圈2可以通过螺栓9与轮毂法兰8连接。图3仅是说明性的，外圈1可以通过螺栓9与轮毂法兰8连接且内圈2可以通过螺栓9与叶片法兰7连接，或者外圈1和内圈2均可与叶片法兰7或轮毂法兰8连接。轴承内部的油脂可通过通孔4进入到外圈1和/或内圈2中的安装孔3内，从而可实现安装孔3内的永久性防腐蚀，并且可防止由腐蚀而导致的应力集中，因此可提高轴承的可靠性。另外，通过通孔4可以促进轴承内部的废油的排出，可在一定程度上缓解油脂泄漏的问题。此外，由于设置了外圈密封安装盘5和/或内圈密封安装盘6，可提高轴承的密封性并增加轴承的刚性。As shown in Fig. 3, in the process of installing and using the bearing according to the exemplary embodiment of the present invention, the bolt 9 can be penetrated into the outer ring 1 from the side where the outer ring seal mounting plate 5 is provided, and the bolt 9 can be inserted 9 penetrates into the inner ring 2 from the side where the inner ring seal mounting disc 6 is provided, so that the outer ring 1 can be connected to the blade flange 7 through bolts 9, and the inner ring 2 can be connected to the hub flange 8 through bolts 9. Figure 3 is only illustrative, the outer ring 1 can be connected to the hub flange 8 through bolts 9 and the inner ring 2 can be connected to the blade flange 7 through bolts 9, or both the outer ring 1 and the inner ring 2 can be connected to the blade flange 7 or hub flange 8 connection. The grease inside the bearing can enter the mounting hole 3 in the outer ring 1 and/or inner ring 2 through the through hole 4, so that permanent corrosion protection in the mounting hole 3 can be achieved, and stress concentration caused by corrosion can be prevented , so the reliability of the bearing can be improved. In addition, the discharge of waste oil inside the bearing can be promoted through the through hole 4, and the problem of grease leakage can be alleviated to a certain extent. In addition, since the outer ring seal mounting plate 5 and/or the inner ring seal mounting plate 6 are provided, the sealing performance of the bearing can be improved and the rigidity of the bearing can be increased.
图4是根据本发明的另一示例性实施例的轴承的处于安装状态的示意性剖视图。为了简洁，将省略与图3中相同内容的冗余描述，而集中在它们的区别之上。Fig. 4 is a schematic sectional view of a bearing in an installed state according to another exemplary embodiment of the present invention. For the sake of brevity, redundant descriptions of the same contents as in FIG. 3 will be omitted, and their differences will be concentrated.
根据本发明的另一示例性实施例的轴承包括外圈1、内圈2以及分别位于外圈1和内圈2中的多个安装孔3，在位于外圈1和/或内圈2中的所述多个安装孔3中的至少一个处设置有通孔4，通孔4连通安装孔3与轴承内部，在外圈1的一个表面和/或内圈2的一个表面上设置有加强盘10，通孔4位于加强盘10中。由于设置了加强盘10，可以在防止安装孔3腐蚀的同时进一步增加轴承的刚性。A bearing according to another exemplary embodiment of the present invention includes an outer ring 1, an inner ring 2, and a plurality of mounting holes 3 respectively located in the outer ring 1 and the inner ring 2, and located in the outer ring 1 and/or the inner ring 2 At least one of the plurality of mounting holes 3 is provided with a through hole 4, the through hole 4 communicates with the mounting hole 3 and the inside of the bearing, and a reinforcing plate is provided on one surface of the outer ring 1 and/or one surface of the inner ring 2 10 , the through hole 4 is located in the reinforcement plate 10 . Due to the arrangement of the reinforcing plate 10, the rigidity of the bearing can be further increased while preventing the installation hole 3 from being corroded.
虽然图4中示出了在外圈1与内圈2上均设置有加强盘10，但是本发明不限于此。例如，可以仅在外圈1或内圈2上设置有加强盘10，而在不设置有加强盘10的外圈1或内圈2的安装孔3处也可以设置有通孔4。Although Fig. 4 shows that the outer ring 1 and the inner ring 2 are provided with reinforcing discs 10, the present invention is not limited thereto. For example, the reinforcing plate 10 may be provided only on the outer ring 1 or the inner ring 2 , and the through hole 4 may also be provided at the installation hole 3 of the outer ring 1 or the inner ring 2 without the reinforcing plate 10 .
根据示例性实施例，在与外圈1上的加强盘10相对的一侧可以设置有外圈密封安装盘5。此外，在与内圈2上的加强盘10相对的一侧可以设置有内圈密封安装盘6。可选地，内圈密封安装盘6可以设置在内圈2的与设置外圈密封安装盘5的表面相对的表面上。According to an exemplary embodiment, an outer ring seal mounting disc 5 may be provided on a side opposite to the reinforcement disc 10 on the outer ring 1 . In addition, an inner ring seal installation disc 6 may be provided on the side opposite to the reinforcement disc 10 on the inner ring 2 . Optionally, the inner ring seal mounting disc 6 may be disposed on the surface of the inner ring 2 opposite to the surface on which the outer ring seal mounting disc 5 is disposed.
此外，如图4所示，当从剖视的角度观察时，加强盘10的宽度可大于外圈1或内圈2的宽度。另外，加强盘10可包括与安装孔3对应的孔。In addition, as shown in FIG. 4 , the width of the reinforcement disc 10 may be greater than that of the outer ring 1 or the inner ring 2 when viewed from a cross-sectional view. In addition, the reinforcing plate 10 may include holes corresponding to the mounting holes 3 .
如图4所示，在安装和使用根据本发明的另一示例性实施例的轴承的过程中，可以将螺栓9从设置有外圈密封安装盘5的一侧穿入外圈1与外圈1上的加强盘10，并且可以将螺栓9从设置有内圈密封安装盘6的一侧穿入内圈2与内圈2上的加强盘10，使得外圈1可以通过螺栓9与叶片法兰7连接，并且内圈2可以通过螺栓9与轮毂法兰8连接。虽然图4示出了设置有加强盘10的一侧与叶片法兰7或轮毂法兰8连接，但是在安装根据本发明的示例性实施例的轴承时，也可以将设置有外圈密封安装盘5或内圈密封安装盘6的一侧与叶片法兰7或轮毂法兰8连接。As shown in Figure 4, in the process of installing and using the bearing according to another exemplary embodiment of the present invention, the bolt 9 can be inserted into the outer ring 1 and the outer ring from the side where the outer ring seal mounting disc 5 is provided. 1, and the bolt 9 can be penetrated into the inner ring 2 and the reinforcing plate 10 on the inner ring 2 from the side where the inner ring seal mounting plate 6 is provided, so that the outer ring 1 can pass through the bolt 9 and the blade flange 7, and the inner ring 2 can be connected with the hub flange 8 by bolts 9. Although Fig. 4 shows that the side provided with the reinforcing plate 10 is connected to the blade flange 7 or the hub flange 8, when installing the bearing according to the exemplary embodiment of the present invention, it is also possible to install the side provided with the outer ring seal One side of the disk 5 or the inner ring sealing installation disk 6 is connected with the blade flange 7 or the hub flange 8 .
根据本发明的示例性实施例的轴承可具有改善的刚性和密封性，可防止内、外圈安装孔的腐蚀，和/或可缓解油脂泄漏的问题。Bearings according to exemplary embodiments of the present invention may have improved rigidity and sealing properties, may prevent corrosion of mounting holes of inner and outer rings, and/or may alleviate problems of grease leakage.
此外，根据本发明的示例性实施例的风力发电机组的变桨轴承可以为所述轴承。Furthermore, the pitch bearing of the wind power generating set according to the exemplary embodiment of the present invention may be the bearing.
虽然已经参照示例性实施例具体地示出并描述了本发明，但本领域普通技术人员将理解的是，在不脱离如由权利要求及其等同物限定的本发明的精神和范围的情况下，可在此做出形式上和细节上的各种变化。While the invention has been particularly shown and described with reference to exemplary embodiments, it will be understood by those skilled in the art that it can be done without departing from the spirit and scope of the invention as defined by the claims and their equivalents. , various changes in form and details may be made here.
Claims (9)
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| CN201611223325.1A CN106594065B (en) | 2016-12-27 | 2016-12-27 | Bearings and pitch bearings for wind turbines |
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| CN106594065B (en) | 2019-07-05 |
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