CN201125959Y - 风电变桨系统轴承的特殊密封结构 - Google Patents

风电变桨系统轴承的特殊密封结构 Download PDF

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Publication number
CN201125959Y
CN201125959Y CNU200720016356XU CN200720016356U CN201125959Y CN 201125959 Y CN201125959 Y CN 201125959Y CN U200720016356X U CNU200720016356X U CN U200720016356XU CN 200720016356 U CN200720016356 U CN 200720016356U CN 201125959 Y CN201125959 Y CN 201125959Y
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ring
sealing
seal
bearing
double
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CNU200720016356XU
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Inventor
孙振生
裴宏涛
王建军
李鑫辉
罗晓秋
王辉
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Precision Slewing Bearing Co., Ltd. of Wafangdian Bearing Group Corporation
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Wafangdian Bearing Group Corp
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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
    • F16C33/7886—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a race
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Of Bearings (AREA)

Abstract

本实用新型涉及一种长寿命、高可靠性的双排球转盘轴承，为风电变桨系统轴承的特殊密封结构。包括内圈、外圈和密封圈，密封圈从外圈上端面压入外圈的轴向密封槽内，密封圈的密封唇搭在内圈的外径上，与内圈在径向形成过盈配合，密封唇为双唇，密封圈外径上带有圆形突起，密封圈与密封槽配合的面上带有倒刺。本实用新型的有益效果是，安装方便，在密封性能上保证了变桨轴承20年以上的使用寿命。

Description

风电变桨系统轴承的特殊密封结构
技术领域
本实用新型涉及一种长寿命、高可靠性的双排球转盘轴承，为风电变桨系统轴承的特殊密封结构。
背景技术
轴承安装在离地面100米左右高的风电变桨系统上，要求轴承具有耐腐蚀性和高承载能力，保证20年的使用寿命。在使用期间，密封是无法更换的。在瓦轴集团研发出1.5兆瓦风力发电机变桨轴承之前，变桨轴承在国内一直是个空白。轴承达到20年的使用寿命，密封性能至关重要。而常规的轴承密封结构很难满足这种使用要求，常用的转盘轴承密封有很多种，但原理基本相同：密封圈采用单唇密封，在恶劣工况下，密封效果不好；密封圈与密封槽配合部分带圆形突起，这种结构如过盈量大，难安装，过盈量小，密封圈容易从槽中脱落，因此密封圈和密封槽一般采用胶粘方式，但这种胶粘方式不适合轴承使用寿命长的情况。
发明内容
为了保证密封的高可靠性，保证轴承20以上年的使用寿命，本实用新型的目的是提供一种特殊的密封结构，即风电变桨系统轴承的特殊密封结构，该密封结构在密封唇和套圈配合形式和密封圈与密封槽的配合方式上都不同于传统的密封。
本实用新型的技术解决方案是，风电变桨系统轴承的特殊密封结构，包括内圈1、外圈2和密封圈3，密封圈3从外圈2上端面压入外圈2的轴向密封槽内，密封圈3的密封唇搭在内圈1的外径上，与内圈1在径向形成过盈配合，密封唇为双唇，密封圈3外径上带有圆形突起，密封圈3与密封槽配合的面上带有倒刺。
本实用新型的有益效果是，安装方便，在密封性能上保证了变桨轴承20年以上的使用寿命。
附图说明
下面结合附图和具体实施方式对本实用新型进一步说明。
图1是本实用新型的结构示意图。
图中：1、内圈，2、外圈，3、密封圈。
具体实施方式
如附图所示，本实用新型包括内圈1、外圈2和密封圈3，密封圈3从外圈2上端面压入外圈2的轴向密封槽内，密封圈3的密封唇搭在内圈1的外径上，与内圈1在径向形成过盈配合，密封唇为双唇，密封圈3外径上带有圆形突起，密封圈3与密封槽配合的面上带有倒刺。为了防止雨水、盐水、灰尘、杂质等进入轴承和防止润滑脂的泄漏，在轴承的上、下端面均设有的密封结构：密封唇为双唇。为了保证密封圈3便于安装更能防止密封圈3从槽中脱落，在密封圈3与密封槽配合的面上带有倒刺，这种密封结构属国内首创。

Claims (1)

1、风电变桨系统轴承的特殊密封结构，包括内圈(1)、外圈(2)和密封圈(3)，其特征在于，密封圈(3)从外圈(2)上端面压入外圈(2)的轴向密封槽内，密封圈(3)的密封唇搭在内圈(1)的外径上，与内圈(1)在径向形成过盈配合，密封唇为双唇，密封圈(3)外径上带有圆形突起，密封圈(3)与密封槽配合的面上带有倒刺。
CNU200720016356XU 2007-11-28 2007-11-28 风电变桨系统轴承的特殊密封结构 Expired - Lifetime CN201125959Y (zh)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102720766A (zh) * 2012-07-02 2012-10-10 北京京冶轧机轴承制造有限公司 一种转盘轴承
CN103062227A (zh) * 2013-01-14 2013-04-24 洛阳新能轴承制造有限公司 轴承的密封机构
CN103062226A (zh) * 2012-12-28 2013-04-24 上海联合滚动轴承有限公司 一种用于风电轴承在制造过程中的密封结构
CN103742542A (zh) * 2013-12-28 2014-04-23 瓦房店轴承集团有限责任公司 密封型四列圆锥滚子轴承
CN107917137A (zh) * 2017-12-12 2018-04-17 洛阳新能轴承制造有限公司 一种防水型变桨轴承

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102720766A (zh) * 2012-07-02 2012-10-10 北京京冶轧机轴承制造有限公司 一种转盘轴承
CN103062226A (zh) * 2012-12-28 2013-04-24 上海联合滚动轴承有限公司 一种用于风电轴承在制造过程中的密封结构
CN103062227A (zh) * 2013-01-14 2013-04-24 洛阳新能轴承制造有限公司 轴承的密封机构
CN103742542A (zh) * 2013-12-28 2014-04-23 瓦房店轴承集团有限责任公司 密封型四列圆锥滚子轴承
CN107917137A (zh) * 2017-12-12 2018-04-17 洛阳新能轴承制造有限公司 一种防水型变桨轴承

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C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: PRECISE ROTARYTABLE BEARING CO.,LTD. AFANGDIAN BE

Free format text: FORMER OWNER: WANFANGDIAN BEARING GROUP CO.,LTD.

Effective date: 20090703

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Effective date of registration: 20090703

Address after: Zhu Hua Industrial Park, Liaoning, Wafangdian City Province, China: 116300

Patentee after: Precision Slewing Bearing Co., Ltd. of Wafangdian Bearing Group Corporation

Address before: 1, section 116300, North Masonic Street, Liaoning, Wafangdian City, China

Patentee before: Wafangdian Bearing Group Corp., Ltd.

CX01 Expiry of patent term

Granted publication date: 20081001