CN100371615C - 密封球面轴承 - Google Patents

密封球面轴承 Download PDF

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Publication number
CN100371615C
CN100371615C CNB2004800088074A CN200480008807A CN100371615C CN 100371615 C CN100371615 C CN 100371615C CN B2004800088074 A CNB2004800088074 A CN B2004800088074A CN 200480008807 A CN200480008807 A CN 200480008807A CN 100371615 C CN100371615 C CN 100371615C
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head
bearing housing
spheroid
bearing
groove
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Expired - Fee Related
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CNB2004800088074A
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CN1768207A (zh
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保罗·雷蒙德·史密斯
热罗姆·古多尔
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Minebea Co Ltd
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Minebea 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
    • 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
    • F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • 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
    • 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
    • F16C11/0666—Sealing means between the socket and the inner member shaft
    • F16C11/0671—Sealing means between the socket and the inner member shaft allowing operative relative movement of joint parts due to flexing of the sealing means
    • 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
    • F16C23/02—Sliding-contact bearings
    • F16C23/04—Sliding-contact bearings self-adjusting
    • F16C23/043—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings
    • F16C23/045—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings for radial load mainly, e.g. radial spherical plain bearings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32606—Pivoted
    • Y10T403/32631—Universal ball and socket
    • Y10T403/32729—Externally packed

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Glass Compositions (AREA)
  • Support Of The Bearing (AREA)
  • Sealing Devices (AREA)
  • Sealing Of Bearings (AREA)

Abstract

一种密封球面轴承，具有轴承箱(1)、位于轴承箱中的球体(2)和环形的密封装置(4)，此密封装置具有位于轴承箱(1)和球体(2)之间的内缘(6)和外缘(5)。内外缘(5，6)中的一个具有头部(7)和悬挂于头部的裙部(12)，头部(7)位于由球体(2)或轴承箱(1)之一形成的环形沟槽(8)中，而裙部(12)位于从沟槽(8)直立形成的唇缘(9)上，以在密封装置(4)与球体(2)或轴承箱(1)之一之间形成至少两条密封线，密封装置的另一缘被固定地安装到球体(2)或轴承箱(1)中的另一个上。

Description

密封球面轴承
技术领域
本发明涉及密封轴承，特别是涉及密封球面轴承。
背景技术
附图1图示说明了具有轴承箱101和球体102的密封球面轴承100。支杆103从球体102延伸。球体102相对于轴承箱101在所有方向上自由转动，唯一的限制是由支杆103提供的制动或球体靠着轴承箱101的部分。一对环形的橡胶密封104安装在轴承箱101和球体102之间的轴承箱的两侧以保护球体102和轴承箱101之间的轴承表面免于如水的液体和污染物微粒的进入。密封104各具有外缘105和内缘106。外缘105被固定地连接到轴承箱101，内缘106以球形头107终止，该球形头107骑坐在球体102和支杆103之间的接合点处形成的沟槽108中(球体和支杆整体地彼此附生形成)。密封104具有一系列的风琴样的同心褶皱109，该褶皱响应于沟槽108朝着轴承箱101和远离轴承箱101的运动而折叠和扩张从而保持沟槽108内球形头107的密封接合。
这种装置充分地发挥作用，但水和污染物微粒的进入仍然发生。
发明内容
本发明的目的是设法提供改进的密封轴承。
因此，本发明的一个方面提供一种具有轴承箱和位于其中的球体的密封球面轴承，轴承箱具有外座圈、内座圈以及夹在内、外座圈之间的环形的弹性部分。
附图说明
为了能够更容易地理解本发明，现在参照附图通过例子描述其实施例，附图中：
图1为非按照本发明的密封球面轴承的局部剖面；
图2为应用本发明的密封球面轴承的局部剖面；以及
图3为应用本发明的另一种密封球面轴承的局部剖面。
具体实施方式
参照附图2，应用本发明的密封球面轴承具有轴承箱1和球体2。支杆3从球体2延伸并优选地与球体2作为整体被形成。球体2相对于轴承箱1在所有的方向上自由转动，唯一的限制是由支杆3提供的制动或球体靠着轴承箱1的部分。
一对环形的橡胶密封装置4安装在轴承箱1和球体2之间的轴承箱的两侧以保护球体2和轴承箱1之间的轴承表面使之免于液体，如水，和污染物微粒的进入。密封装置4各具有外缘5和内缘6。
优选地通过将外缘5插入到在围绕轴承箱形成的环形沟槽中然后将其用桩撑持或卷压在适当的位置，外缘5被固定地连接到轴承箱1上。这在外缘5和轴承箱1之间提供密封。内缘6形成球形头7的末端，该球形头骑坐在球体2和支杆3之间的接合处形成的沟槽8中。当关于转动时，头部7通过滑入到沟槽中并跟随由于球体2相对于轴承箱1转动而产生的头部7相对于沟槽8的任何转动自由的骑坐在沟槽中。这样头部7和沟槽8之间存在滑动接触，但头部7保持着与沟槽8的密封接触。
沟槽8各一侧(内侧)是以直立的圆形的唇缘9终止的半圆形槽的形式，在另一侧(外侧)上为直的侧环形壁10的形式。
密封装置4具有一系列的风琴样的同心褶皱11，该褶皱随着沟槽8朝着轴承箱1和远离轴承箱1的运动而折叠和扩张从而保持沟槽8内球形头7的密封接合。
除了图1中描绘的密封104之外，环形的球形头7形成有裙部12，该裙部从球形头7突出并罩在沟槽8外侧的唇缘9上。裙部12从球形头7径向向内定向并从头部的根端至末端逐渐减小。
裙部12接触唇缘9的至少一点，优选地与唇缘9上表面的一个区域接触。接触点或接触区在裙部12和球体2或支杆3之间形成密封线或密封带。此密封线或密封带为头部7和槽8之间的密封线或带之外附加的。这样，此处就提供了两道密封把轴承表面同液体或污染物微粒分开。另外，裙部12提供了液体离开裙部12和唇缘9之间的密封的溢流口，因而进一步增强了该密封的密封性能。优选地，如图2所示，在头部7形成的密封线和裙部12所形成的密封线之间形成空隙。
图2中描绘的轴承是所谓的动静压混合轴承(hybrid bearing)。应该理解，球面轴承不必是带有弹性部分的动静压混合轴承-非动静压混合轴承也得益于密封的改进。
球面轴承可能具有半杯形式的轴承箱，这意味着球面轴承仅有一侧需要密封，在这种情况下仅需要提供单个的密封装置4，见图3。可以将轴承箱的一侧覆盖以致仅需要一个密封装置。
密封装置的外缘被固定地安装在轴承箱上而内缘骑坐在球体沟槽中的机械布置可以被颠倒，从而密封装置的内缘被固定地安装到球体上，而外缘骑坐在轴承箱的沟槽中。
沟槽8在图2中显示为处于整体形成的球体2和支杆3之间的结合处。应该理解，本发明不限于沟槽8处于这个位置。沟槽可以位于更靠近球体2的中心处或进一步靠近支杆3、远离球体中心的位置。
本说明书中的“包括(comprises)”是指“包含或由...组成(includesor consists of)”，以及“包括(comprising)”是指“包括或由...组成(including or consisting of)”。
在前面的说明书、或下面的权利要求书或附图中公开的，以其特定形式或执行所公开的功能的装置、获得公开的结果的方法适当地表示的特征，可单独地或以这些特征的任意组合的形式被用于以其多种多样的形式实现本发明。

Claims (6)

1.一种密封球面轴承，该轴承具有轴承箱、位于轴承箱中的球体和环形的密封装置，此密封装置具有位于轴承箱和球体之间的内缘和外缘，内外缘中的一个具有头部和悬挂于头部上的裙部，头部位于在球体或轴承箱之一中形成的环形沟槽中，其中头部自由的骑坐在沟槽中，裙部从头部径向向内定向并位于从沟槽直立形成的唇缘上，以在密封装置与球体或轴承箱之一之间形成至少两条密封线，密封装置的另一缘被固定地安装到球体或轴承箱中的另一个上。
2.按照权利要求1所述的密封轴承，其特征是所述沟槽形成于球体中，所述内缘具有头部和悬挂于头部的裙部，而外缘固定地安装到轴承箱上。
3.按照权利要求1或2所述的密封轴承，其特征是裙部从头部的根端至末端逐渐减小。
4.按照权利要求1或2所述的密封轴承，其特征是直立的唇缘是沟槽的侧壁。
5.按照权利要求1或2所述的密封轴承，其特征是在头部形成的密封线和裙部形成的密封线之间具有空隙。
6.按照权利要求1或2所述的密封轴承，其特征是裙部使得在直立的唇缘的整个圆周区域上形成密封接触。
CNB2004800088074A 2003-04-01 2004-03-25 密封球面轴承 Expired - Fee Related CN100371615C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0307549A GB2400149B (en) 2003-04-01 2003-04-01 A sealed bearing
GB0307549.6 2003-04-01

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CN1768207A CN1768207A (zh) 2006-05-03
CN100371615C true CN100371615C (zh) 2008-02-27

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US (1) US7568840B2 (zh)
EP (1) EP1608882B1 (zh)
JP (1) JP2006522293A (zh)
CN (1) CN100371615C (zh)
AT (1) ATE511029T1 (zh)
GB (1) GB2400149B (zh)
WO (1) WO2004088157A1 (zh)

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GB2400149A (en) 2004-10-06
EP1608882A1 (en) 2005-12-28
ATE511029T1 (de) 2011-06-15
CN1768207A (zh) 2006-05-03
JP2006522293A (ja) 2006-09-28
US7568840B2 (en) 2009-08-04
GB2400149B (en) 2005-03-23
GB0307549D0 (en) 2003-05-07
EP1608882B1 (en) 2011-05-25
US20070065057A1 (en) 2007-03-22
WO2004088157A1 (en) 2004-10-14
WO2004088157A9 (en) 2005-09-15

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