CN108105256A - T形沟直角接触分体式变桨轴承 - Google Patents

T形沟直角接触分体式变桨轴承 Download PDF

Info

Publication number
CN108105256A
CN108105256A CN201711408216.1A CN201711408216A CN108105256A CN 108105256 A CN108105256 A CN 108105256A CN 201711408216 A CN201711408216 A CN 201711408216A CN 108105256 A CN108105256 A CN 108105256A
Authority
CN
China
Prior art keywords
inner ring
ring
pitch variable
variable bearings
right angle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711408216.1A
Other languages
English (en)
Inventor
马建阳
田琳
徐猛
肖长春
苍施良
孙晓旭
杨金雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co Ltd
Wafangdian Bearing Group Corp
Original Assignee
Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co Ltd
Wafangdian Bearing Group Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co Ltd, Wafangdian Bearing Group Corp filed Critical Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co Ltd
Priority to CN201711408216.1A priority Critical patent/CN108105256A/zh
Publication of CN108105256A publication Critical patent/CN108105256A/zh
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F16C19/49—Bearings with both balls and rollers
    • F16C19/492—Bearings with both balls and rollers with two or more rows with angular contact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • 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
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/522—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to load on the bearing, e.g. bearings with load sensors or means to protect the bearing against overload
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/37—Loose spacing bodies
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/62—Selection of substances
    • 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/60—Ferrous alloys, e.g. steel alloys
    • 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/60—Ferrous alloys, e.g. steel alloys
    • F16C2204/66—High carbon steel, i.e. carbon content above 0.8 wt%, e.g. through-hardenable steel
    • 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/60—Ferrous alloys, e.g. steel alloys
    • F16C2204/70—Ferrous alloys, e.g. steel alloys with chromium as the next major constituent
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

本发明涉及一种变桨轴承，具体是涉及一种T形沟直角接触分体式变桨轴承，包括外圈、第一内圈、第二内圈，设置于外圈和两内圈之间的两个钢球，所述外圈内表面为凸起结构，内圈外表面为与外圈凸起结构相配合的凹槽结构，两个钢球分别在外圈凸起结构的两侧，两个钢球分别内圈的凹槽两个侧壁接触，所述外圈、第一内圈、第二内圈之间形成套圈滚道，在外圈与两内圈之间分别设置密封圈；适用于风电发电机组复杂工况，使滚道与钢球之间不存在间隙，在高频振动的作用下，更好的承受了钢球和沟道间产生冲击载荷，优化了滚道疲劳寿命，延长了变桨轴承的使用寿命。

Description

T形沟直角接触分体式变桨轴承
技术领域
本发明涉及一种变桨轴承，具体是涉及一种T形沟直角接触分体式变桨轴承，主要应用于风力发电机组上的配与超大直径风机和极高轮毂的变桨轴承。
背景技术
风力发电机组中变桨轴承作为风力发电机专用轴承之一，其使用性能的好坏，寿命长短均关系到风力发电机的正常运行、发电效率等。由于变桨轴承尺寸较大，结构及受力复杂，对其设计生产的难度也相对较大，一般国内生产的风电轴承性能和使用寿命都很难达到设计要求。以德国船级社风力发电机组认证规范及欧洲规范为依据，结合现代设计理论及分析方法，对超大直径风机和极高轮毂的变桨轴承进行相关研究分析，为变桨轴承的设计与生产具有理论意义和工程使用价值。
目前风力发电机轴承有很大一部分依赖国外进口，且国外轴承价格高，供货周期长，制约着国内风力发电机整机企业的发展。作为国内轴承的龙头企业，义不容辞要对超大直径风机和极高轮毂的变桨轴承的研发任务。
其中变桨轴承的内部结构是未来发展趋势中的一项需要重点攻克难关。
发明内容
为了克服变桨轴承使用工况复杂，尺寸大，保持架易损化，安装方式为立式安装等问题，本发明提供了一种T形沟直角接触分体式变桨轴承，配与超大直径风机和极高轮毂。
为了实现上述目的，本发明所采用的技术方案是：T形沟直角接触分体式变桨轴承，包括外圈、第一内圈、第二内圈，设置于外圈和两内圈之间的两个钢球，所述外圈内表面为凸起结构，内圈外表面为与外圈凸起结构相配合的凹槽结构，两个钢球分别在外圈凸起结构的两侧，两个钢球分别内圈的凹槽两个侧壁接触，所述外圈、第一内圈、第二内圈之间形成套圈滚道，在外圈与两内圈之间分别设置密封圈；
所述的密封圈为双唇式密封件；
所述外圈、第一内圈、第二内圈为三段环分体式结构；
所述的套圈滚道为T形结构，钢球接触角为90°；
T形滚道内轴向设置两排滚柱，两排滚柱一侧面与外圈的凸起结构端面接触；
所述第一内圈和第二内圈分别设置梯形台结构，第二内圈搭叠设置在第一内圈的梯形台端面上；
两排滚柱的另一侧面与第一内圈梯形台台面接触；
在第二内圈与靠近第二内圈一端的滚柱上表面之间设有间隙，第一内圈内侧与另一排滚柱的下表面直接接触；
在每两个钢球之间还设有隔离块，所述隔离块为环形结构，所述隔离块直径小于钢球直径；
轴承套圈采用炉外精炼真空脱气的合金结构钢42CrMo4V，钢球采用炉外精炼真空脱气的高碳铬轴承钢GCr15G、Cr15SiMn。
采用上述技术方案所产生的有益效果是：
1) 套圈采用分体式结构，便于装配滚动体，取消了传统的装球口，消除了装球孔在承受复杂交变载荷产生的应力。
2) 套圈滚道为T形结构方式，钢球接触角为90°，消除了传统四点接触球变桨轴承的钢球承受额外的径向载荷时引起的套圈变形，径向力全部由径向滚道的滚动体承担，可通过建立FEA模型并有限元分析计算调整滚动体大小。
3) T形滚道中的两排轴向滚柱在轴承中心承受倾覆力矩，消除了传统四点接触球变桨轴承的边缘应力载荷。
4) T形滚道适用于风电发电机组复杂工况，使滚道与钢球之间不存在间隙，在高频振动的作用下，更好的承受了钢球和沟道间产生冲击载荷，优化了滚道疲劳寿命，延长了变桨轴承的使用寿命。
5) 此变桨轴承适用于2MW到10MW陆上低风速和大型海上风机，在轮毂和叶根出现严重变形也能确保平稳运行。
附图说明
图1为T形滚道分体式变桨轴承结构示意图。
图2为钢球接触角及滚道形状剖视图。
图3为滚动体受力视图。
图中，01.外圈，02.第一内圈，22第二内圈 04.钢球，24.滚柱，06.隔离块，58.密封圈，03.T形滚道。
具体实施方式
下面结合附图对本发明进行详细说明。
如图1-3所示，T形沟直角接触分体式变桨轴承，包括外圈01、第一内圈02、第二内圈22，设置于外圈01和两内圈之间的两个钢球04，所述外圈01内表面为凸起结构，内圈外表面为与外圈凸起结构相配合的凹槽结构，两个钢球分别在外圈凸起结构的两侧，两个钢球分别内圈的凹槽两个侧壁接触，所述外圈01、第一内圈02、第二内圈22之间形成套圈滚道，在外圈01与两内圈之间分别设置密封圈58；
所述的密封圈58为双唇式密封件；
所述外圈01、第一内圈02、第二内圈22为三段环分体式结构；
所述的套圈滚道为T形结构，钢球接触角为90°；
T形滚道内轴向设置两排滚柱24，两排滚柱24一侧面与外圈01的凸起结构端面接触；
所述第一内圈02和第二内圈22分别设置梯形台结构，第二内圈22搭叠设置在第一内圈02的梯形台端面上；
两排滚柱24的另一侧面与第一内圈02梯形台台面接触；
在第二内圈22与靠近第二内圈一端的滚柱24上表面之间设有间隙，第一内圈02内侧与另一排滚柱24的下表面直接接触；
在每两个钢球04之间还设有隔离块06，所述隔离块06为环形结构，所述隔离块06直径小于钢球直径。
T形沟直角接触分体式配与超大直径风机和极高轮毂的变桨轴承，通过建立FEA模型和有限元分析计算验证后，不仅很好的满足强度要求，不易变形，精度高等问题,已经投入生产配与超大直径风机和极高轮毂的变桨系统。

Claims (9)

1.T形沟直角接触分体式变桨轴承，其特征在于包括外圈、第一内圈、第二内圈，设置于外圈和两内圈之间的两个钢球，所述外圈内表面为凸起结构，内圈外表面为与外圈凸起结构相配合的凹槽结构，两个钢球分别在外圈凸起结构的两侧，两个钢球分别内圈的凹槽两个侧壁接触，所述外圈、第一内圈、第二内圈之间形成套圈滚道，在外圈与两内圈之间分别设置密封圈。
2.根据权利要求1所述的T形沟直角接触分体式变桨轴承，其特征在于所述外圈、第一内圈、第二内圈为三段环分体式结构。
3.根据权利要求1所述的T形沟直角接触分体式变桨轴承，其特征在于所述的套圈滚道为T形结构，钢球接触角为90°。
4.根据权利要求1所述的T形沟直角接触分体式变桨轴承，其特征在于T形滚道内轴向设置两排滚柱，两排滚柱一侧面与外圈的凸起结构端面接触。
5.根据权利要求4所述的T形沟直角接触分体式变桨轴承，其特征在于所述第一内圈和第二内圈分别设置梯形台结构，第二内圈搭叠设置在第一内圈的梯形台端面上。
6.根据权利要求5所述的T形沟直角接触分体式变桨轴承，其特征在于两排滚柱的另一侧面与第一内圈梯形台台面接触。
7.根据权利要求4所述的T形沟直角接触分体式变桨轴承，其特征在于在第二内圈与靠近第二内圈一端的滚柱上表面之间设有间隙，第一内圈内侧与另一排滚柱的下表面直接接触。
8.根据权利要求1所述的T形沟直角接触分体式变桨轴承，其特征在于在每两个钢球之间还设有隔离块，所述隔离块为环形结构，所述隔离块直径小于钢球直径。
9.根据权利要求1所述的T形沟直角接触分体式变桨轴承，其特征在于轴承套圈采用炉外精炼真空脱气的合金结构钢42CrMo4V，钢球采用炉外精炼真空脱气的高碳铬轴承钢GCr15G、Cr15SiMn。
CN201711408216.1A 2017-12-22 2017-12-22 T形沟直角接触分体式变桨轴承 Pending CN108105256A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711408216.1A CN108105256A (zh) 2017-12-22 2017-12-22 T形沟直角接触分体式变桨轴承

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711408216.1A CN108105256A (zh) 2017-12-22 2017-12-22 T形沟直角接触分体式变桨轴承

Publications (1)

Publication Number Publication Date
CN108105256A true CN108105256A (zh) 2018-06-01

Family

ID=62212477

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711408216.1A Pending CN108105256A (zh) 2017-12-22 2017-12-22 T形沟直角接触分体式变桨轴承

Country Status (1)

Country Link
CN (1) CN108105256A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109253158A (zh) * 2018-09-05 2019-01-22 宁波艾德轴业有限公司 一种t形沟直角接触分体式变桨轴承
CN111749983A (zh) * 2019-03-28 2020-10-09 新疆金风科技股份有限公司 轴承及风力发电机组的轴承系统
CN112867876A (zh) * 2019-09-24 2021-05-28 世客思株式会社 轴承组件

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105134771A (zh) * 2015-06-25 2015-12-09 浙江新昌皮尔机械配件有限公司 一种转盘轴承
EP3109493A1 (de) * 2015-06-25 2016-12-28 ThyssenKrupp Rothe Erde GmbH Wälzlageranordnung und blattlager für eine windkraftanlage
CN207715543U (zh) * 2017-12-22 2018-08-10 瓦房店轴承集团国家轴承工程技术研究中心有限公司 一种t形沟直角接触分体式变桨轴承

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105134771A (zh) * 2015-06-25 2015-12-09 浙江新昌皮尔机械配件有限公司 一种转盘轴承
EP3109493A1 (de) * 2015-06-25 2016-12-28 ThyssenKrupp Rothe Erde GmbH Wälzlageranordnung und blattlager für eine windkraftanlage
CN207715543U (zh) * 2017-12-22 2018-08-10 瓦房店轴承集团国家轴承工程技术研究中心有限公司 一种t形沟直角接触分体式变桨轴承

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109253158A (zh) * 2018-09-05 2019-01-22 宁波艾德轴业有限公司 一种t形沟直角接触分体式变桨轴承
CN109253158B (zh) * 2018-09-05 2020-06-09 宁波艾德轴业有限公司 一种t形沟直角接触分体式变桨轴承
CN111749983A (zh) * 2019-03-28 2020-10-09 新疆金风科技股份有限公司 轴承及风力发电机组的轴承系统
CN112867876A (zh) * 2019-09-24 2021-05-28 世客思株式会社 轴承组件

Similar Documents

Publication Publication Date Title
KR101022104B1 (ko) 풍력 터빈용 선회 베어링 구조체 및 풍력 발전 장치
JP5880707B2 (ja) 複合すべり軸受およびこの軸受けを用いた風力発電装置
CN108105256A (zh) T形沟直角接触分体式变桨轴承
WO2014002296A1 (ja) 再生エネルギー型発電装置の軸系組立て方法及び軸系組立て治具
US9188107B2 (en) Wind turbine bearings
JP6267844B2 (ja) 大型転がり軸受
EP3742010B1 (en) Wind turbine with a slewing ring bearing and method for assembling a slewing ring bearing with a predetermined preload
CN201368188Y (zh) 行星轮的支承结构
CN207715543U (zh) 一种t形沟直角接触分体式变桨轴承
US11725633B2 (en) Pitch bearing for a wind turbine
US9422984B2 (en) Bearing having a raceway with high chromium content
CN201963737U (zh) 大型风电双列圆锥滚子轴承上的保持架
CN102537044B (zh) 风电主轴双角支承油膜轴承
CN207033994U (zh) 球柱式滚子轴承及具有其的风力发电机组
CN213808478U (zh) 一种风力发电机组独立变桨的三排圆柱滚子变桨轴承
WO2022051878A1 (zh) 一种非对称结构的调心滚子轴承
CN102562812B (zh) 大型风电双列圆锥滚子轴承上的保持架
CN206017433U (zh) 径向倾斜轴承
CN210484409U (zh) 一种风电增速箱圆柱滚子轴承
CN212389660U (zh) 一种带有l型保持架的转盘轴承
CN216343404U (zh) 一种多段弧修型滚子及其调心滚子轴承
CN201827243U (zh) 轮毂轴承内圈结构
CN218817591U (zh) 一种双排密封圈均随内圈转动的四点接触球变桨轴承
CN117685294A (zh) 球柱联合变桨轴承
CN205744895U (zh) 一种新型的圆锥滚子轴承

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination