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CN201326518Y - 采用双列背靠背轴承的风力发电机组主轴支撑机构 - Google Patents

采用双列背靠背轴承的风力发电机组主轴支撑机构 Download PDF

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Publication number
CN201326518Y
CN201326518Y CNU2008202338296U CN200820233829U CN201326518Y CN 201326518 Y CN201326518 Y CN 201326518Y CN U2008202338296 U CNU2008202338296 U CN U2008202338296U CN 200820233829 U CN200820233829 U CN 200820233829U CN 201326518 Y CN201326518 Y CN 201326518Y
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Prior art keywords
main shaft
bearing
biserial
supporting mechanism
shaft supporting
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Expired - Lifetime
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CNU2008202338296U
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English (en)
Inventor
刘松超
刘作辉
卜忠林
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Sinovel Polytron Technologies Inc.
Sinovel Wind Group Co Ltd
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SINOVEL WIND CO Ltd
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Priority to CNU2008202338296U priority Critical patent/CN201326518Y/zh
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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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • 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
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wind Motors (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

本实用新型公开了一种采用双列背靠背轴承的风力发电机组主轴支撑机构，其包括有主轴及一个双列背靠背轴承，所述主轴连接风力发电机组的轮毂和齿轮箱，所述双列背靠背轴承设在所述主轴与主机架之间。该主轴支撑机构只采用一个双列背靠背轴承支撑，具有结构合理、重量轻、制造成本低、可靠性高的优点。

Description

采用双列背靠背轴承的风力发电机组主轴支撑机构
技术领域
本实用新型关于风力发电机组，更具体地说，关于一种采用双列背靠背轴承的风力发电机组主轴支撑机构。
背景技术
在风能开发技术中主传动列技术是大型风力发电机组的关键技术之一，而目前大型风力发电机组大多采用的是高速比齿轮箱和发电机的传动方案。其中主传动列技术中的主轴支撑机构包括有用于连接轮毂与齿轮箱的主轴，该主轴通过轴承与主机架连接，具体地说是通过轴承支撑主轴，进而支撑轮毂和齿轮箱，将轮毂的转矩传递给齿轮箱的同时还将来自轮毂的其余载荷传递到主机架上，阻止这些载荷被传递到齿轮箱上，以延长齿轮箱的寿命。
现有主轴支撑机构的布置形式主要有：
一种是主轴两端各有一个轴承，这种结构形式的传动机构尺寸较大，传动部件重，成本高。
另一种是主轴上安装一个轴承作为一支撑点，在齿轮箱上设置另两个支撑点，这种结构形式会传递较大的载荷给齿轮箱，进而影响了齿轮箱的寿命。
实用新型内容
本实用新型的目的在于提供一种结构合理、重量轻、制造成本低、可靠性高的采用双列背靠背轴承的风力发电机组主轴支撑机构。
本实用新型中采用双列背靠背轴承的风力发电机组主轴支撑机构包括有主轴及一个双列背靠背轴承，所述主轴的两端分别连接风力发电机组的轮毂和齿轮箱，所述双列背靠背轴承设在所述主轴与主机架之间。
所述双列背靠背轴承包括有与所述主轴固定连接的内圈、与所述主机架固定连接的外圈及置于所述内圈与外圈之间的多个圆锥滚子，在所述内圈与所述外圈的相对表面上形成有相互匹配的内凹与外凸的锥形表面。
所述内圈直接套在所述主轴的外表面，与所述主轴的外表面过盈配合，并由压圈与螺丝进一步固定，所述外圈通过多数个螺栓孔和多数个配套的螺栓与所述主机架固定连接。
所述主轴为铸造制得的短轴。
所述圆锥滚子分为两排并列地设在所述内圈与外圈的锥形表面之间。
本实用新型中采用双列背靠背轴承的风力发电机组主轴支撑机构只采用一个双列背靠背轴承支撑，具有结构合理、重量轻、制造成本低、可靠性高的优点。
附图说明
图1为本实用新型中风力发电机组主轴支撑机构的结构示意图。
具体实施方式
下面将结合附图对本实用新型中的具体实施例作进一步详细说明。
如图1所示，本实用新型中采用双列背靠背轴承的风力发电机组主轴支撑机构，包括有主轴1及双列背靠背轴承，其中主轴1用于连接风力发电机组的轮毂和齿轮箱，双列背靠背轴承设在主轴1与主机架5之间，用于支撑主轴1，进而支撑轮毂与齿轮箱。由于轮毂、齿轮箱及主机架均为现有技术，在此不再另行说明。
主轴1的尺寸相对较短，退化成过渡段法兰形式的结构，从而采用铸造方式成形。主轴1利用法兰8与轮毂连接，另一端与齿轮箱连接(图中未示出)。
双列背靠背轴承包括有内圈4、外圈2和圆锥滚子3，其中，内圈4直接套置在主轴1的外表面，与主轴1的外表面过盈配合，并通过压圈6、螺丝9进一步固定，外圈2通过多数个用于连接主机架5的螺栓孔和多数个配套的螺栓7连接在主机架5上。
在内圈4与外圈2相对的表面各形成一个内凹与外凸的相互匹配的锥形表面40、20，为了增加圆锥滚子3的径向与轴向承载能力，该两锥形表面40、20的倾斜角度约为45度，因此在两锥形表面40、20之间形成的间隙也呈圆锥形，从而在两锥形表面40、20之间置入呈圆锥形的圆锥滚子3，且圆锥滚子3分成两列均匀分布。
本实用新型中的主轴支撑机构只在主轴1前部使用一个轴承，同时轴承内圈4为铸造工艺，尺寸相对较短，从而可以缩短轮毂与齿轮箱之间的距离，缩短整个主机架5的长度。
综上所述，本实用新型中的主轴支撑机构具有以下优点：
1、只采用一个双列背靠背轴承支撑点支撑结构，具有驱动力矩外，还可以将大部分的载荷通过双列背靠背轴承传递到主机架上，使轮毂的载荷不通过齿轮箱传递，从而不会导致齿轮箱的输入轴因为弯曲力矩而产生变形，有效的提高了齿轮箱的使用寿命。
2、在轮毂与齿轮箱之间的主轴采用铸造的连接段，具有结构合理，重量轻，制造成本低等优点。

Claims (5)

1、一种采用双列背靠背轴承的风力发电机组主轴支撑机构，包括有主轴(1)及一个双列背靠背轴承，其特征在于，所述主轴(1)的两端分别连接风力发电机组的轮毂和齿轮箱，所述双列背靠背轴承设在所述主轴(1)与主机架(5)之间。
2、根据权利要求1所述的采用双列背靠背轴承的风力发电机组主轴支撑机构，其特征在于，所述双列背靠背轴承包括有与所述主轴(1)固定连接的内圈(4)、与所述主机架(5)固定连接的外圈(2)及置于所述内圈(4)与外圈(2)之间的多个圆锥滚子(3)，在所述内圈(4)与所述外圈(2)的相对表面上形成有相互匹配的内凹与外凸的锥形表面(40、20)。
3、根据权利要求2所述的采用双列背靠背轴承的风力发电机组主轴支撑机构，其特征在于，所述内圈(4)直接套在所述主轴(1)的外表面，与所述主轴(1)的外表面过盈配合，并由压圈(6)与螺丝(9)进一步固定，所述外圈(2)通过多数个螺栓孔和多数个配套的螺栓(7)与所述主机架(5)固定连接。
4、根据权利要求1所述的采用双列背靠背轴承的风力发电机组主轴支撑机构，其特征在于，所述主轴(1)为铸造制得的短轴。
5、根据权利要求2所述的采用双列背靠背轴承的风力发电机组主轴支撑机构，其特征在于，所述圆锥滚子(3)分为两排并列地设在所述内圈(4)与外圈(2)的锥形表面(40、20)之间。
CNU2008202338296U 2008-12-24 2008-12-24 采用双列背靠背轴承的风力发电机组主轴支撑机构 Expired - Lifetime CN201326518Y (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102506064A (zh) * 2011-12-26 2012-06-20 瓦房店轴承集团有限责任公司 风力发电机一体式实体保持架结构的单支撑主轴轴承
CN105317633A (zh) * 2015-11-26 2016-02-10 重庆望江工业有限公司 风力发电机组主轴承的支撑及轴向安装游隙的调整结构

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102506064A (zh) * 2011-12-26 2012-06-20 瓦房店轴承集团有限责任公司 风力发电机一体式实体保持架结构的单支撑主轴轴承
CN105317633A (zh) * 2015-11-26 2016-02-10 重庆望江工业有限公司 风力发电机组主轴承的支撑及轴向安装游隙的调整结构
CN105317633B (zh) * 2015-11-26 2018-07-13 重庆望江工业有限公司 风力发电机组主轴承的支撑及轴向安装游隙的调整结构

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Owner name: HUARUI WIND POWER TECHNOLOGY (GROUP) CO., LTD.

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Address after: 100872, room 7, building 59, 705 Zhongguancun street, Haidian District, Beijing

Patentee after: Sinovel Polytron Technologies Inc.

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