CN106640954B - 一种滚动深沟球轴承 - Google Patents

一种滚动深沟球轴承 Download PDF

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CN106640954B
CN106640954B CN201610917397.XA CN201610917397A CN106640954B CN 106640954 B CN106640954 B CN 106640954B CN 201610917397 A CN201610917397 A CN 201610917397A CN 106640954 B CN106640954 B CN 106640954B
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许水电
李延福
许涛
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Chuan Fu Technology (xiamen) Co Ltd
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Priority to PCT/CN2017/107153 priority patent/WO2018072754A1/zh
Priority to JP2019542770A priority patent/JP6912065B2/ja
Priority to EP17862966.3A priority patent/EP3530968B1/en
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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
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • F16C19/20—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows with loose spacing bodies, e.g. balls, between the bearing balls
    • 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
    • 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
    • F16C33/34—Rollers; Needles
    • 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
    • F16C33/34—Rollers; Needles
    • F16C33/36—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces
    • F16C33/363—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces with grooves in the bearing-surfaces
    • 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
    • F16C33/3713—Loose spacing bodies with other rolling elements serving as spacing bodies, e.g. the spacing bodies are in rolling contact with the load carrying rolling elements
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/26—Speed, e.g. rotational speed
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/42—Groove sizes
    • 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
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    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/46—Gap sizes or clearances
    • 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
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/39—General buildup of machine tools, e.g. spindles, slides, actuators
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    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/10—Railway vehicles
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/43—Aeroplanes; Helicopters
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    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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    • F16C2326/00—Articles relating to transporting
    • F16C2326/47—Cosmonautic vehicles, i.e. bearings adapted for use in outer-space

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

Abstract

本发明公开一种滚动深沟球轴承，包括轴承外圈、轴承内圈、若干大滚珠和异形滚柱，轴承内外圈之间布置大滚珠和异形滚柱，大滚珠和异形滚柱间隔布设，本发明的滚动深沟球轴承，滚珠与轴承沟道实现纯滚动，承受线速度高，承载力大，噪音小，可靠性高，寿命长。本发明的深沟球轴承无装球缺口，装配简单。

Description

一种滚动深沟球轴承
技术领域
本发明涉及一种轴承，特别是滚动深沟球轴承。
背景技术
无论是带保持架还是满球的深沟球轴承均无法解决滚珠与沟道滑动摩擦的问题，带保持架的深沟球轴承由于滚珠与保持架之间的摩擦导致滚珠与沟道的滑动摩擦，而满球的深沟球轴承由于工作时相邻两个滚珠同时受载，当这两个滚珠接触时，滚珠与沟道的摩擦阻力急剧增大，出现滑动摩擦，特别是在高速重载，滚珠与轴承沟道极易磨损烧伤，使用寿命短，无法满足高端需求。满球的深沟球轴承其结构特点是没有保持架，在外圈及内圈上设计了装球缺口，比普通轴承装更多的滚珠，这种轴承由于没有保持架与套圈和滚动体之间的摩擦，摩擦力小、灵敏度高，在航天、航空和航海装置的飞行姿态和方向控制系统中应用广泛。但这种满球轴承经常会在轴承外圈和轴承内圈的侧面分别设置缺口，当外圈和内圈的装球缺口对准之后，形成装球缺口用来填满滚珠。虽然提高了承载力，但是由于外圈和内圈的装球缺口对准之后，滚珠能够穿过，在受到轴向力时，滚珠存在从缺口掉落的风险，导致轴承卡死，无法正常转动，存在安全隐患。
发明内容
针对现有技术的不足，本发明不仅提供了一种滚动深沟球轴承，滚珠与轴承沟道实现纯滚动，线速度高，承载力大，噪音小，可靠性高，寿命长。同时还发明了一种无装球缺口，装配简单的滚动深沟球轴承。
为达到上述目的，本发明是通过以下技术方案实现的：
一种滚动深沟球轴承，其包括轴承外圈、轴承内圈、若干大滚珠和异形滚柱，轴承内外圈之间布置大滚珠和异形滚柱，大滚珠和异形滚柱间隔布设。
进一步，所述异形滚柱的中间设有凹槽，凹槽深度e的数值为：0.03mm＜e＜d1/3，其中d1为大滚珠直径。
进一步，所述异形滚柱的直径da与内外圈间距h的关系为：h-da＝0.005～0.2mm，h为(D2-d2)/2，D2为外圈的内径，d2为内圈的外径。
进一步，所述大滚珠和异形滚柱之间的总间隙s的数值为：0.03mm＜s＜e，e为异形滚柱的凹槽深度。
进一步，所述异形滚柱至少含有一个分体异形滚柱，分体异形滚柱用铆接或过盈配合而成。
本发明的满球深沟球轴承，滚珠与轴承沟道实现纯滚动，摩擦系数小，承受的线速度高，承载力大，噪音小，可靠性高,特别是无装球缺口，装配方便。
本发明滚动深沟球轴承的应用不仅推动冶金、电力、建筑机械、建筑材料、能源等行业的发展，还能满足汽车、风电、高档机床、高铁、航空航天和国防军事等高端领域的应用。
附图说明
图1是本发明实施例一正面示意图；
图2是图1的A-A方向剖视图；
图3是异形滚柱图；
图4是异形滚柱图的爆炸图。
具体实施方式
下面结合附图对本发明作进一步说明：
实施例：如图1和2，一种滚动深沟球轴承，包括轴承外圈1、轴承内圈2、若干大滚珠3和异形滚柱4，轴承外圈1和轴承内圈2之间布置大滚珠3和异形滚柱4，大滚珠3和异形滚柱4间隔布设。
如图3，所述异形滚柱4的凹槽曲面截面既可以由圆弧、对数螺旋线等其他曲线构成，还可以由直线构成。凹槽曲面设计实现大滚珠3的轴向和径向定位。考虑到制造误差，凹槽深度e＞0.03mm，若凹槽深度e太小，异形滚柱4容易掉落，无法满足轴承的正常工作。凹槽深度e太大，则加工难度加大，综合考虑，凹槽深度e优选为0.03mm～d1/3，其中d1为大滚珠的直径。
如图1，异形滚柱4的直径da与内外圈间距h的关系为：h-da＝0.005～0.2mm，h为(D2-d2)/2，D2为外圈的内径，d2为内圈的外径。h-da的值太小，异形滚柱4极易与内外圈锁止卡死；d1-d2的值太大，异形滚柱4与内外圈间隙太大，不仅无法起到定位的作用，还容易出现窜动，噪音大，甚至影响正常工作。因此，h-da值的设定必须要充分考虑到制造误差和装配误差，以及整个动态过程各因素的影响。既要保证异形滚柱4在工作过程中不受力，同时还要能够起到定位的作用。滚动体按一大一小的间隔布设即相邻两个大滚珠3之间布设异形滚柱4，工作时，大滚珠3承受载荷，而异形滚柱4不受载。运动过程中，各滚珠3和异形滚柱4既公转又自转，由于间隔布设，大滚珠3的自转方向一致，此时大滚珠3受载纯滚动摩擦，摩擦系数小，异形滚柱4虽然与大滚珠3摩擦接触反向自转，但由于不受载，摩擦系数小，几乎不产生摩擦阻力。这样有效解决了原有满滚珠深沟球轴承工作时滚珠与轴承沟道的摩擦阻力急剧增大而出现的滑动摩擦问题，特别是高速重载的情况下，从而实现大滚珠3与沟道的纯滚动摩擦。
如图1，大滚珠3和异形滚柱4之间总间隙s的设计必须与异形滚柱4的凹槽深度相匹配，间隙太小，滚珠容易卡死，高速重载时即刻磨损烧伤；间隙太大，滚珠容易出现窜动，噪音大，影响正常工作。因此，大滚珠3和异形滚柱4之间总间隙s的数值为：0.03mm＜s＜e，e为异形滚柱4的凹槽深度。
考虑到装配的要求，所述异形滚柱至少含有一个分体异形滚柱5，分体异形滚柱用铆接或过盈配合而成。
如图1、2和图4所示，大滚珠3和异形滚柱4间隔装配，当大滚珠和整体异形滚柱装配完成后，最后安装分体异形滚柱5，直至轴承滚动体全部排满。分体异形滚柱5可用铆接或过盈配合的方式实现。
本发明不仅解决了滚珠与沟道无法实现纯滚动摩擦的问题，还解决了满球轴承装配困难和装配缺陷的问题。通过与NSK同型号轴承的对比试验，即以同样的扭矩旋转轴承，测试轴承旋转时间：本发明旋转7.62秒后停止，而NSK旋转2.18秒后停止，其摩擦阻力大大降低，在高速重载的工况下，效果更加显著。
本发明不仅适用于单列深沟球轴承，在多列深沟球轴承以及角接触球轴承上也适用，不仅推动冶金、电力、建筑机械、建筑材料、能源等行业的发展，还能满足汽车、风电、高档机床、高铁、航空航天和国防军事等高端领域的应用。
以上所记载，仅为利用本创作技术内容的实施例，任何熟悉本项技艺者运用本创作所做的修饰、变化，皆属本创作主张的专利范围，而不限于实施例所揭示者。

Claims (3)

1.一种滚动深沟球轴承，其特征在于：包括轴承外圈、轴承内圈、若干大滚珠和异形滚柱，轴承内外圈之间布置大滚珠和异形滚柱，大滚珠和异形滚柱间隔布设，所述异形滚柱的中间设有凹槽，所述大滚珠和异形滚柱之间的总间隙s的数值为：0.03mm＜s＜e，e为异形滚柱的凹槽深度，所述异形滚柱的直径da与内外圈间距h的关系为：h-da＝0.005～0.2mm，h为(D2-d2)/2，D2为外圈的内径，d2为内圈的外径。
2.根据权利要求1所述的深沟球轴承，其特征在于：凹槽深度e的数值为：0.03mm＜e＜d1/3，其中d1为大滚珠直径。
3.根据权利要求1所述的深沟球轴承，其特征在于：所述异形滚柱至少含有一个分体异形滚柱，分体异形滚柱用铆接或过盈配合而成。
CN201610917397.XA 2016-10-21 2016-10-21 一种滚动深沟球轴承 Active CN106640954B (zh)

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Application Number Priority Date Filing Date Title
CN201610917397.XA CN106640954B (zh) 2016-10-21 2016-10-21 一种滚动深沟球轴承
PCT/CN2017/107153 WO2018072754A1 (zh) 2016-10-21 2017-10-20 一种滚动深沟球轴承
JP2019542770A JP6912065B2 (ja) 2016-10-21 2017-10-20 転がり深溝玉軸受
EP17862966.3A EP3530968B1 (en) 2016-10-21 2017-10-20 Ball bearing having deep track
US16/389,848 US10704594B2 (en) 2016-10-21 2019-04-19 Rolling deep groove ball bearing

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CN112833161B (zh) * 2021-02-02 2024-02-23 浙江来福谐波传动股份有限公司 一种带复合球轴承的谐波减速器的下壳体制造方法

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CN106640954A (zh) 2017-05-10
EP3530968B1 (en) 2021-07-28
JP6912065B2 (ja) 2021-07-28
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US20190242431A1 (en) 2019-08-08

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