CN202431752U - 一种超低摩擦力矩的圆锥滚子轴承 - Google Patents

一种超低摩擦力矩的圆锥滚子轴承 Download PDF

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CN202431752U
CN202431752U CN2012200510759U CN201220051075U CN202431752U CN 202431752 U CN202431752 U CN 202431752U CN 2012200510759 U CN2012200510759 U CN 2012200510759U CN 201220051075 U CN201220051075 U CN 201220051075U CN 202431752 U CN202431752 U CN 202431752U
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roller bearing
conical roller
friction torque
raceway surface
rollers
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CN2012200510759U
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陈钱再
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SICHUAN RENBEN BEARING CO Ltd
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SICHUAN RENBEN BEARING CO Ltd
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    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

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Abstract

本实用新型公开了一种超低摩擦力矩的圆锥滚子轴承，由内圈（1）、外圈（2）、保持架（4）、滚子（3）组成，其特征在于：内圈滚道面（5）和外圈滚道面（6）均呈弧形凸面，小挡边（7）由斜面改成为台阶形。本实用新型通过改变内、外滚道表面形状，将内挡圈小档边由斜边形改成台阶形，有效的降低了滚子间粘滞滚动阻力和润滑剂搅拌阻力及滚子与挡边间的滑动阻力，经实际检测与同尺寸的常规轴承相比，其摩擦力矩减少50％。

Description

一种超低摩擦力矩的圆锥滚子轴承
技术领域
本实用新型涉及一种轴承，尤其是一种超低摩擦力矩的圆锥滚子轴承。
背景技术
圆锥滚子轴承具有高承载能力和高刚度，适用于差速器。但现有的圆锥滚子轴承存在以下缺陷：滚子过长，滚子数量多，滚子与滚道接触角小，保持架小端的内径尺寸大，保持架内挡圈过短且无台阶结构，这些因素都是圆锥滚子轴承摩擦力矩大的原因。相比球轴承，圆锥滚子轴承的摩擦力矩要大得多，效率损失大。为了减小摩擦力矩，一些车辆生产商最近已考虑使用球轴承。与类似尺寸的圆锥滚子轴承相比，球轴承的寿命、刚度和静态安全性都要差，需用更大尺寸的球轴承以提供与圆锥滚子轴承的等效性能。这样一方面给整车装配带来了困难，又使整个结构不紧凑。因此，开发一种既保持长寿命和高刚度，又降低摩擦力矩的圆锥滚子轴承是十分必要的。
实用新型内容
本实用新型的目的在于克服现有技术的不足，提供一种超低摩擦力矩的圆锥滚子轴承，本实用新型的目的通过下述技术方案来实现；本实用新型由内圈、外圈、保持架、滚子组成，其特征在于：内圈滚道面和外圈滚道面均呈弧形凸面，小挡边由斜面改成为台阶形。
通常，圆锥滚子轴承的摩擦由下列4个因素引起，（A）滚子与滚道之间的粘滞滚动阻力（约占６５％）；（B）滚子与挡边之间的滑动阻力（约占５％）；（C）润滑剂的搅拌阻力（约占３０％）；（D）滚子与保持架之间的滑动阻力可以忽略不计。本实用新型针对上述因素进行了研制，就提高效率而言，也就是要减小摩擦力矩，则应增大接触角a，而滚子的数量和滚子有效长度则需减少。然而接触角a的增大会减小动载容量，而滚子数和滚子长度的减小将使动载荷容量和刚度更低。本实用新型通过改变内、外滚道表面形状，将内挡圈小档边由斜边形改成台阶形，有效的降低了滚子间粘滞滚动阻力和润滑剂搅拌阻力及滚子与挡边间的滑动阻力，经实际检测与同尺寸的常规轴承相比，其摩擦力矩减少50％ 。
附图说明
图1为本实用新型结构示意图。
具体实施方式
如图1所示，本实用新型由内圈（1）、外圈（2）、滚子（3）、保持架（4）组成，其特征在于：内圈滚道面（5）和外圈滚道面（6）均呈弧形凸面，内圈小挡边（7）由斜面改成为台阶形。

Claims (1)

1.一种超低摩擦力矩的圆锥滚子轴承，由内圈（1）、外圈（2）、保持架（4）、滚子（3）组成，其特征在于：内圈滚道面（5）和外圈滚道面（6）均呈弧形凸面，小挡边（7）由斜面改成为台阶形。
CN2012200510759U 2012-02-17 2012-02-17 一种超低摩擦力矩的圆锥滚子轴承 Expired - Fee Related CN202431752U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106415062A (zh) * 2014-01-22 2017-02-15 纳博特斯克有限公司 齿轮传动装置
CN107939841A (zh) * 2017-12-26 2018-04-20 瓦房店轴承集团有限责任公司 低扭矩少油润滑圆锥滚子轴承

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106415062A (zh) * 2014-01-22 2017-02-15 纳博特斯克有限公司 齿轮传动装置
CN107939841A (zh) * 2017-12-26 2018-04-20 瓦房店轴承集团有限责任公司 低扭矩少油润滑圆锥滚子轴承

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Granted publication date: 20120912

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