CN2839720Y - 一种关节轴承 - Google Patents

一种关节轴承 Download PDF

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Publication number
CN2839720Y
CN2839720Y CNU200520014311XU CN200520014311U CN2839720Y CN 2839720 Y CN2839720 Y CN 2839720Y CN U200520014311X U CNU200520014311X U CN U200520014311XU CN 200520014311 U CN200520014311 U CN 200520014311U CN 2839720 Y CN2839720 Y CN 2839720Y
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Prior art keywords
joint shaft
shaft bearing
outer ring
bearing
inner ring
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Expired - Fee Related
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CNU200520014311XU
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English (en)
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宋安民
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钱林荣
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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
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06—Ball or roller bearings
    • F16C23/08—Ball or roller bearings self-adjusting
    • F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
    • F16C23/086—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface forming a track for 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
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0614—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part of the joint being open on two sides
    • 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
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • 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
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/04—Connecting-rod bearings; Attachments thereof

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

Abstract

本实用新型涉及一种轴承，尤其是涉及一种关节轴承。一种关节轴承，由外圈和内圈组成，外圈的内侧呈凹形球面，内圈的外侧呈凸形球面，且两球面弧度相一致。沿内圈的凸形球面上设有两条弧形沟道，在弧形沟道上设有若干钢球。关节轴承的两侧各设有一个防尘盖；在外圈上设有注油器。按照上述方法制造出来的关节轴承，由于巧妙地在球面轴承的内、外圈之间设置了钢球，将弧面滑动摩擦变成了滚动摩擦，使摩擦系数从0.2降至0.0015，不仅保持了现有关节轴承可以在三维空间摆动的特点，而且满足了在一个平面内高速旋转的需要，并使关节轴承的使用寿命大大提高。

Description

一种关节轴承
                          技术领域
本实用新型涉及一种轴承，尤其是涉及一种关节轴承。
                          背景技术
长期以来在纺织机械、制刷机械、汽车制造等多领域经常使用一种关节轴承，也称球面轴承，它可以在旋转中同时承受很大的径向载荷，并且旋转轴相对轴心线做摆动或倾斜。由于这种关节轴承承受着多种方向载荷运动，所以结构较特殊，目前，这种轴承，如图1所示，由一个内侧为凹球面的外圈1和一个空心球体的内圈2组成，在外圈与球体的中间常用铜圈或自润滑材料作为减磨层。工作时内圈做圆周旋转运动，旋转同时可相对轴心线做摆动，这种关节轴承工作时为纯滑动摩擦，摩擦系数为0.2，由于摩擦系数大，只能承受100-300转/分的转速，转速高时摩擦加剧，轴承工作面经常出现磨损、点蚀及剥落等损坏现象而导致轴承不能工作。这种轴承已经不能适应目前先进的高速机械传动行业。
                          发明内容
为了解决上述问题，本实用新型的目的是提供一种摩擦系数小，适应转速高，寿命长的关节轴承。
本实用新型主要是通过下述技术方案得以解决的：一种关节轴承，由外圈和内圈组成，外圈的内侧呈凹形球面，沿内圈的外侧呈凸形球面且两球面弧度相一致，沿内圈的凸形球面上设有两条弧形沟道，在弧形沟道上设有若干钢球。弧形沟道的曲率半径与排列在弧形沟道上的钢球的曲率半径相匹配；关节轴承的两侧各设有一个防尘盖；在外圈上设有注油器。
轴承的外圈、内圈均采用GCr15钢制造，并经淬火、回火热处理，以提高轴承的硬度、强度和耐磨性。
按照上述方法制造出来的关节轴承，由于巧妙地在球面轴承的内、外圈之间设置了钢球，将弧面滑动摩擦变成了滚动摩擦，使摩擦系数从0.2降至0.0015，不仅保持了现有关节轴承可以在三维空间摆动的特点，而且满足了在一个平面内高速旋转的需要，并使关节轴承的使用寿命大大提高。
                          附图说明
图1为现有技术关节轴承的结构示意图。
图2为本实用新型实施例的结构示意图。
图3为图2的侧面图。
                        具体实施方式
下面通过实施例，并结合附图2-3，对本实用新型的技术方案作进一步具体的说明。
实施例1、一种关节轴承，由外圈1和内圈2组成，外圈1的内侧呈凹形球面，内圈2的外侧呈凸形球面且两球面弧度相一致。外圈1、内圈2均采用GCr15轴承钢制造，轴承钢经淬火、回火后，提高轴承硬度、强度，增强耐磨性。沿内圈2的凸形球面上设有2条弧形沟道5，在2条弧形沟道5上分别设有两列相同的钢球3，钢球3的大小应与弧形沟道5、内圈2、外圈1相匹配。在外圈1上设有注油器4，有效减小了钢球3与内圈2的弧形沟道5、外圈1的摩擦。关节轴承的两侧各设有一个防尘盖6，保持轴承内部清洁。在外圈2上设有注油器7，有效减小了钢球3与内圈2的弧形沟道5、外圈1的摩擦。
根据不同的用途，可以将关节轴承的外圈1一端制成杆形的，杆的另一端设有螺纹或其他连接结构，此时带杆的关节轴承即可广泛的应用于纺织机械、制刷机械、汽车制造等等。

Claims (4)

1、一种关节轴承，由外圈(1)和内圈(2)组成，外圈(1)的内侧呈凹形球面，内圈(2)的外侧呈凸形球面，且两球面弧度相一致，其特征在于沿内圈(2)的凸形球面上设有两条弧形沟道(5)，在弧形沟道(5)上设有若干钢球(3)。
2、根据权利要求1所述的一种关节轴承，其特征在于弧形沟道(5)的曲率半径与排列在弧形沟道(5)上的钢球(3)的曲率半径相匹配。
3、根据权利要求1或2所述的一种关节轴承，其特征在于在关节轴承的两侧各设有一个防尘盖(6)。
4根据权利要求1或2所述的一种关节轴承，其特征在于在外圈上设有注油器(4)。
CNU200520014311XU 2005-08-24 2005-08-24 一种关节轴承 Expired - Fee Related CN2839720Y (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103388619A (zh) * 2012-05-13 2013-11-13 芜湖市宝艺游乐科技设备有限公司 滚动式关节轴承
CN106015325A (zh) * 2016-07-04 2016-10-12 浙江大学 滚动关节轴承
CN106704359A (zh) * 2016-11-18 2017-05-24 江苏方天电力技术有限公司 一种抑制流体激振力的自动调心球密封机构

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103388619A (zh) * 2012-05-13 2013-11-13 芜湖市宝艺游乐科技设备有限公司 滚动式关节轴承
CN106015325A (zh) * 2016-07-04 2016-10-12 浙江大学 滚动关节轴承
CN106704359A (zh) * 2016-11-18 2017-05-24 江苏方天电力技术有限公司 一种抑制流体激振力的自动调心球密封机构

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20061122

Termination date: 20140824

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