CN101265943B - 机床主轴用推力球轴承 - Google Patents

机床主轴用推力球轴承 Download PDF

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Publication number
CN101265943B
CN101265943B CN2008100112590A CN200810011259A CN101265943B CN 101265943 B CN101265943 B CN 101265943B CN 2008100112590 A CN2008100112590 A CN 2008100112590A CN 200810011259 A CN200810011259 A CN 200810011259A CN 101265943 B CN101265943 B CN 101265943B
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China
Prior art keywords
bearing
main shaft
machine tool
thrust ball
spindle
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Expired - Fee Related
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CN2008100112590A
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English (en)
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CN101265943A (zh
Inventor
张福有
赵文爽
刘本胜
车世红
周秀宽
王洪军
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DALIAN KAITELE MACHINERY Co Ltd
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DALIAN KAITELE MACHINERY Co Ltd
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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
    • F16C19/10—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for axial load mainly

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  • Rolling Contact Bearings (AREA)

Abstract

本发明涉及一种机床主轴用推力球轴承，该轴承主要由主轴(1)、轴承轴圈(2)、钢球组件(3)、轴承座圈(4)和机床箱体(5)组成，其特征在于，轴承座圈(4)的内径d2与主轴(1)的直径d1之间的间隙为0.4～0.6毫米，最佳为0.5毫米。本发明的有益效果是：能够使轴承的两个套圈在主轴的装配过程中保持同心，使主轴轴承的使用寿命延长。

Description

机床主轴用推力球轴承
技术领域
本发明属于轴承产品开发技术领域，涉及一种提高机床主轴寿命的推力球轴承。
背景技术
目前，国内机床主轴用的推力球轴承的外形结构尺寸是根据国家标准《GB/T301滚动轴承推力球轴承外形尺寸》来选定轴承的外形尺寸。这样的结构形式如果被使用在卧式主轴且外圈非配合的情况下，则在主轴装配过程中，由于座圈内径与主轴之间存在很大的间隙(一般情况有几个毫米间隙)，座圈在重力作用下自由下垂到主轴位置，会导致座圈与轴圈的滚道不同心，引起轴承的偏载，使轴承的使用寿命减少。
发明内容
本发明的目的是提供一种机床主轴用推力球轴承，能够使轴承在装配过程中，轴承座圈的下垂量控制在最小，轴承的两个套圈保持同心，进而延长主轴轴承的使用寿命。
为了达到上述目的，本发明的技术方案如下：
一种机床主轴用推力球轴承，主要由主轴、轴承轴圈、钢球组件、轴承座圈和机床箱体组成，轴承座圈的内径d2与主轴直径d1之间的间隙为0.4～0.6毫米，最佳为0.5毫米。
本发明的有益效果是：能够使轴承的两个套圈在主轴的装配过程中保持同心，使主轴轴承的使用寿命延长。
附图说明
图1是本发明的结构示意图。
图中：1.主轴，2.轴承轴圈，3.钢球组件，4.轴承座圈，5.机床箱体。
具体实施方式
下面结合附图和具体实施例对本发明做详细说明如下：
如图1所示，本发明的一种机床主轴用推力球轴承，主要由主轴1、轴承轴圈2、钢球组件3、轴承座圈4和机床箱体5组成，推力球轴承在机床整体的结构不改变的情况下，将推力球轴承座圈4的内径d2与主轴1的直径d1的差值调整为0.5毫米，将轴承座圈4紧靠在机床箱体5上，将钢球组件3靠紧轴承座圈4，将主轴1和轴承轴圈2过盈配合后靠紧钢球组件3，对轴承施加轴向预载荷后可以进行工作。利用本发明的轴承结构，在装配轴承的过程中既能保证主轴直径d1在旋转时不与轴承座圈4的内径d2发生干涉，又能保证轴承座圈4与轴承轴圈2的同心度，从而大大地减小了主轴轴承在安装过程中由于套圈自重导致的轴圈2与座圈4的不同心度。

Claims (2)

1.机床主轴用推力球轴承，主要由主轴(1)、轴承轴圈(2)、钢球组件(3)、轴承座圈(4)和机床箱体(5)组成，其特征在于，轴承座圈(4)的内径d2与主轴(1)的直径d1之间的差值为0.4～0.6毫米。
2.如权利要求1所述的机床主轴用推力球轴承，其特征在于，所述差值为0.5毫米。
CN2008100112590A 2008-04-30 2008-04-30 机床主轴用推力球轴承 Expired - Fee Related CN101265943B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008100112590A CN101265943B (zh) 2008-04-30 2008-04-30 机床主轴用推力球轴承

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008100112590A CN101265943B (zh) 2008-04-30 2008-04-30 机床主轴用推力球轴承

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CN101265943A CN101265943A (zh) 2008-09-17
CN101265943B true CN101265943B (zh) 2010-06-16

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523863A (en) * 1982-10-25 1985-06-18 Nippon Seiko Kabushiki Kaisha Thrust ball bearing
CN2718313Y (zh) * 2004-06-23 2005-08-17 洛阳轴研科技股份有限公司 新型的双向推力圆锥滚子轴承
CN1865723A (zh) * 2006-06-06 2006-11-22 加西贝拉压缩机有限公司 变孔径平面止推球轴承
CN201010441Y (zh) * 2007-01-06 2008-01-23 聂新成 起重机用钢丝绳卸力装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523863A (en) * 1982-10-25 1985-06-18 Nippon Seiko Kabushiki Kaisha Thrust ball bearing
CN2718313Y (zh) * 2004-06-23 2005-08-17 洛阳轴研科技股份有限公司 新型的双向推力圆锥滚子轴承
CN1865723A (zh) * 2006-06-06 2006-11-22 加西贝拉压缩机有限公司 变孔径平面止推球轴承
CN201010441Y (zh) * 2007-01-06 2008-01-23 聂新成 起重机用钢丝绳卸力装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2007-224996A 2007.09.06

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