CN2854189Y - 双列四点角接触球轴承 - Google Patents

双列四点角接触球轴承 Download PDF

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Publication number
CN2854189Y
CN2854189Y CNU200520200599XU CN200520200599U CN2854189Y CN 2854189 Y CN2854189 Y CN 2854189Y CN U200520200599X U CNU200520200599X U CN U200520200599XU CN 200520200599 U CN200520200599 U CN 200520200599U CN 2854189 Y CN2854189 Y CN 2854189Y
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ball
bearing
outer ring
biserial
ring
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CNU200520200599XU
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李明军
王群华
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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
    • F16C19/14—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
    • 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
    • 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
    • F16C2240/30—Angles, e.g. inclinations
    • F16C2240/34—Contact angles

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

Abstract

一种双列四点角接触球轴承，外圈内面与内圈外面相对应处有环状滚道，滚珠设于滚道之中，并由保持架隔开，其保持架内夹持有并排、双列的滚珠，外圈与内圈均为整环，在外圈与内圈相对应处设有两条滚道，两滚道的横截面均呈桃形，滚珠与内、外圈滚道为四点接触。上述滚珠和外圈的接触角为45°。本实用新型与传统球轴承相比有如下的优点：在承受轴向力时是两列钢球同时受力，因此大大增加了承载能力；在承受轴向力时是把力量分散作用在两个滚道上，每个滚道承受总轴向力的二分之一，从而延长了轴承的使用寿命。两列钢球总是同时受力，额定负荷是同等大小传统轴承的1.3倍，大大减少了机械的维修费用和维修次数，从而降低了产品成本。

Description

双列四点角接触球轴承
(一)技术领域
本实用新型涉及一种机械轴支承零件，特别是一种球轴承。
(二)背景技术
传统球轴承具有分别与轴、轴承座相配合的内圈、外圈，两圈间一般有保持架，保持架内夹持一连串滚珠。内、外圈之间为滚动摩擦，当两圈相对转动时，滚珠滚动，实现承轴的功能。传统球轴承环状滚道的截面形状为圆弧形，滚珠与内、外圈滚道为两点接触。在承受轴向力时总是一列钢球受力，所承受的力量都集中作用在一个滚道上，因此负荷区易出现疲劳剥落，使轴承的额定负荷减小、使用寿命较短。
(三)实用新型内容
本实用新型的目的是提供一种双列四点角接触球轴承，解决传统球轴承使用寿命短、额定负荷较小、负荷区易出现疲劳剥落的技术问题。
本实用新型的技术方案：这种双列四点角接触球轴承，外圈内面与内圈外面相对应处有环状滚道，滚珠设于滚道之中，并由保持架隔开，其特征在于：保持架内夹持有并排、双列的滚珠，外圈与内圈均为整环，在外圈与内圈相对应处设有两条滚道，两滚道的横截面均呈桃形，滚珠与内、外圈滚道为四点接触。
上述滚珠和外圈的接触角为45°。
上述滚珠和外圈的接触角为20°-60°
有益效果：本实用新型是一种双列四点接触球轴承，它与传统球轴承相比有如下的优点：1、在承受轴向力时是两列钢球同时受力，因此大大增加了承载能力；2、在承受轴向力时是把力量分散作用在两个滚道上，每个滚道承受总轴向力的二分之一，从而延长了轴承的使用寿命。3、两列钢球总是同时受力，因此受力的钢球数量就多，额定负荷就大，本实用新型的额定负荷是同等大小传统轴承的1.3倍，大大减少了机械的维修费用和维修次数，从而降低了产品成本。不仅适用于普通机械，还特别适用于要求高承载力的机械。
(四)附图说明
图1是本实用新型的结构示意图。
图2是图1的局部放大图。
(五)具体实施方式
参见图1、2，该双列四点角接触球轴承的实施例：外圈1的内面与内圈2的外面相对应处有环状滚道3，滚珠4设于滚道之中，并由保持架5隔开，保持架内夹持有并排、双列的滚珠，外圈与内圈均为整环，在外圈与内圈相对应处设有两条滚道，两滚道的横截面均呈桃形，滚珠与内、外圈滚道为四点接触。上述滚珠和外圈的接触角a为20°-60°，最佳为45°±1°。

Claims (3)

1、一种双列四点角接触球轴承，外圈内面与内圈外面相对应处有环状滚道，滚珠设于滚道之中，并由保持架隔开，其特征在于：保持架内夹持有并排、双列的滚珠，外圈与内圈均为整环，在外圈与内圈相对应处设有两条滚道，两滚道的横截面均呈桃形，滚珠与内、外圈滚道为四点接触。
2、根据权利要求1所述的双列四点角接触球轴承，其特征在于：上述滚珠和外圈的接触角为45°。
3、根据权利要求1所述的双列四点角接触球轴承，其特征在于：上述滚珠和外圈的接触角为20°-60°。
CNU200520200599XU 2005-08-18 2005-08-18 双列四点角接触球轴承 Expired - Fee Related CN2854189Y (zh)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102062146A (zh) * 2011-01-18 2011-05-18 常熟长城轴承有限公司 圆机主轴轴承
CN102678742A (zh) * 2012-06-19 2012-09-19 常熟长城轴承有限公司 带法兰的双列角接触轴承
CN103742525A (zh) * 2013-12-18 2014-04-23 宁波摩根轴承有限公司 轴承
CN104314973A (zh) * 2014-10-11 2015-01-28 无锡明珠钢球有限公司 一种滚动轴承
CN108561418A (zh) * 2018-06-14 2018-09-21 人本集团有限公司 一种双列四点接触滚轮轴承

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102062146A (zh) * 2011-01-18 2011-05-18 常熟长城轴承有限公司 圆机主轴轴承
CN102678742A (zh) * 2012-06-19 2012-09-19 常熟长城轴承有限公司 带法兰的双列角接触轴承
CN103742525A (zh) * 2013-12-18 2014-04-23 宁波摩根轴承有限公司 轴承
CN104314973A (zh) * 2014-10-11 2015-01-28 无锡明珠钢球有限公司 一种滚动轴承
CN108561418A (zh) * 2018-06-14 2018-09-21 人本集团有限公司 一种双列四点接触滚轮轴承

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