CN113389813A - 一种用于高速低扭矩涨紧器皮带轮上的轴承 - Google Patents

一种用于高速低扭矩涨紧器皮带轮上的轴承 Download PDF

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CN113389813A
CN113389813A CN202110653090.4A CN202110653090A CN113389813A CN 113389813 A CN113389813 A CN 113389813A CN 202110653090 A CN202110653090 A CN 202110653090A CN 113389813 A CN113389813 A CN 113389813A
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bearing
sealing
ring
mounting groove
lip
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韩芳芳
刘国强
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Guangde Zhonglong Bearing Co ltd
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Guangde Zhonglong Bearing 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
    • 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
    • F16C33/38—Ball cages
    • F16C33/3887—Details of individual pockets, e.g. shape or ball retaining 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/44—Selection of substances
    • 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
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • 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
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
    • 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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    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
    • F16C33/7806—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for spherical roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • 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
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
    • 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
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
    • F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
    • F16C33/7823—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of sealing lips
    • 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
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
    • F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
    • F16C33/7826—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of the opposing surface cooperating with the seal, e.g. a shoulder surface of a bearing ring
    • 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
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
    • F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
    • F16C33/7853—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race
    • 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
    • F16C37/00—Cooling of bearings
    • F16C37/007—Cooling of bearings of rolling bearings
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials

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Abstract

本发明公开了一种用于高速低扭矩涨紧器皮带轮上的轴承，包括：一轴承本体，轴承本体轴设有轴承内圈和轴承外圈，轴承内圈上以此设置有第一密封圈安装槽和第一钢球安装槽；所述轴承外圈上依次设置有第二密封圈安装槽和第二钢球安装槽；在所述轴承内圈、轴承外圈和所述保持架之间形成的密封空腔当中设置有密封圈；密封圈内设置有骨架，所述骨架的形状与所述保持架的形状相匹配，所述密封圈设置有第一密封内唇、第二密封内唇和第三密封内唇，在所述第三密封内唇的接触端设置有凸起；所述密封外唇与所述第二密封圈安装槽接触密封；所述轴承外圈的外壁上设置有滚花状凸出部和N型槽。本发明能够减小扭矩和温升，改善密封圈滑移和与外圈配件脱落现象。

Description

一种用于高速低扭矩涨紧器皮带轮上的轴承
技术领域
本发明涉及轴承制造领域，具体涉及一种用于高速低扭矩涨紧器皮带轮上的轴承。
背景技术
现有的涨紧器皮带轮轴承的轴承外圈容易与外部注塑件脱落，同时扭矩偏大不易于使用。
发明内容
为了克服现有技术上述的不足，本发明的目的在于提供一种用于高速低扭矩涨紧器皮带轮上的轴承。
为了实现本发明的目的，所采用的技术方案是：
一种用于高速低扭矩涨紧器皮带轮上的轴承，包括：
一轴承本体，所述轴承本体轴设有轴承内圈和轴承外圈，所述轴承内圈上以此设置有第一密封圈安装槽和第一钢球安装槽；
所述轴承外圈上依次设置有与所述轴承内圈相对应的第二密封圈安装槽和第二钢球安装槽；
所述钢球通过保持架进行承托保持，在所述轴承内圈、轴承外圈和所述保持架之间形成的密封空腔当中设置有密封圈；
所述密封圈内设置有骨架，所述骨架的形状与所述保持架的形状相匹配，分别设置有第一弯折部、连接部和第二弯折部，所述密封圈朝向所述第一弯折部的延伸方向设置有第一密封内唇、第二密封内唇和第三密封内唇，所述第一密封内唇和所述第二密封内唇与所述第一密封圈安装槽的槽口两侧相接触密封；
所述第三密封内唇与所述第一密封圈安装槽的内侧槽壁接触密封，在所述第三密封内唇的接触端设置有凸起；
在所述第二弯折部的延伸方向设置有密封外唇，所述密封外唇与所述第二密封圈安装槽接触密封；
所述轴承外圈的外壁上设置有滚花状凸出部和N型槽。
在本发明的一个优选实施例中，所述滚花状凸出部和N型槽平行设置。
在本发明的一个优选实施例中，所述保持架的球兜为圆柱形结构。
在本发明的一个优选实施例中，所述保持架的材质为PA46-GF30型塑料。
在本发明的一个优选实施例中，所述轴承密封圈的启动扭矩为50-60gf.cm。
在本发明的一个优选实施例中，所述轴承的油脂量为20-25％。
本发明的有益效果在于：
本发明通过采用特殊结构的密封圈骨架来增加牢固性，密封圈内唇口增加一个圆凸起点，明显改善注塑后的密封圈吸附，扭矩减小，同时减小轴承温升，改善密封圈滑移现象。
本发明的油脂量较常规油脂量(25-35％)要低，由于油脂具有一定的粘度，减少油脂量会明显减小摩擦力矩，从而减少轴承温升。
本发明的轴承外圈通过设置滚花状凸出部和N型槽来改善外圈配件脱落现象。
附图说明
图1为本发明的结构示意图。
图2为本发明的保持架的结构示意图。
图3为本发明的密封圈的局部结构示意图。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
如图1-3所示的用于高速低扭矩涨紧器皮带轮上的轴承，包括了轴承本体，在轴承本体轴设有轴承内圈100和轴承外圈200，轴承内圈100上以此设置有第一密封圈安装槽110和第一钢球安装槽120。
对应的，在轴承外圈200上依次设置有与轴承内圈100相对应的第二密封圈安装槽210和第二钢球安装槽220。
钢球300通过保持架310进行承托保持，在轴承内圈100、轴承外圈200和保持架310之间形成的密封空腔当中设置有密封圈400。
重点结合图2，保持架310的材质为PA46-GF30型塑料，最高耐温150°。保持架310的球兜311为圆柱形结构。这样的设置可以有效提高钢球的润滑性能，提升使用寿命以及减小运动过程中的噪音。
密封圈400内设置有骨架410，骨架410的形状与保持架310的形状相匹配，分别设置有第一弯折部411、连接部412和第二弯折部413。
密封圈400朝向所述第一弯折部411的延伸方向设置有第一密封内唇421、第二密封内唇422和第三密封内唇423。
重点结合图3，第一密封内唇421、第二密封内唇422与第一密封圈安装槽110的槽口两侧相接触密封，另外第三密封内唇423与第一密封圈安装槽110的内侧槽壁接触密封，在第三密封内唇423的接触端设置有凸起423a，能够明显改善注塑后的密封圈吸附，扭矩减小，同时减小轴承温升，改善密封圈滑移现象。述轴承密封圈的启动扭矩为50-60gf.cm。而常规结构密封圈启动扭矩：70-90gf.cm。
在第二弯折部413的延伸方向设置有密封外唇430，密封外唇430与第二密封圈安装槽210接触密封。
轴承外圈200的外壁上设置有滚花状凸出部230和N型槽240，滚花状凸出部230和N型槽240平行设置，这样注塑后，轴承与注塑件(图中未示出)更牢固，改善相对滑动及轴向脱落现象。
轴承的油脂量为20-25％，较常规油脂量(25-35％)要低，由于油脂具有一定的粘度，减少油脂量会明显减小摩擦力矩，从而减少轴承温升。
本发明的轴承在GB/T 32562-2016的测试标准下，取5个产品进行扭矩测量，所得数据为如下表1所示：
1 2 3 4 5
55gf.cm 58gf.com 56gf.com 56gf.com 50gf.com
可见本发明的轴承比常规结构密封圈启动扭矩要明显降低。

Claims (6)

1.一种用于高速低扭矩涨紧器皮带轮上的轴承，其特征在于，包括：
一轴承本体，所述轴承本体轴设有轴承内圈和轴承外圈，所述轴承内圈上以此设置有第一密封圈安装槽和第一钢球安装槽；
所述轴承外圈上依次设置有与所述轴承内圈相对应的第二密封圈安装槽和第二钢球安装槽；
所述钢球通过保持架进行承托保持，在所述轴承内圈、轴承外圈和所述保持架之间形成的密封空腔当中设置有密封圈；
所述密封圈内设置有骨架，所述骨架的形状与所述保持架的形状相匹配，分别设置有第一弯折部、连接部和第二弯折部，所述密封圈朝向所述第一弯折部的延伸方向设置有第一密封内唇、第二密封内唇和第三密封内唇，所述第一密封内唇和所述第二密封内唇与所述第一密封圈安装槽的槽口两侧相接触密封；
所述第三密封内唇与所述第一密封圈安装槽的内侧槽壁接触密封，在所述第三密封内唇的接触端设置有凸起；
在所述第二弯折部的延伸方向设置有密封外唇，所述密封外唇与所述第二密封圈安装槽接触密封；
所述轴承外圈的外壁上设置有滚花状凸出部和N型槽。
2.如权利要求1所述的一种用于高速低扭矩涨紧器皮带轮上的轴承，其特征在于，所述滚花状凸出部和N型槽平行设置。
3.如权利要求1所述的一种用于高速低扭矩涨紧器皮带轮上的轴承，其特征在于，所述保持架的球兜为圆柱形结构。
4.如权利要求1所述的一种用于高速低扭矩涨紧器皮带轮上的轴承，其特征在于，所述保持架的材质为PA46-GF30型塑料。
5.如权利要求1所述的一种用于高速低扭矩涨紧器皮带轮上的轴承，其特征在于，所述轴承密封圈的启动扭矩为50-60gf.cm。
6.如权利要求1所述的一种用于高速低扭矩涨紧器皮带轮上的轴承，其特征在于，所述轴承的油脂量为20-25％。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1918495U (de) * 1965-04-13 1965-06-24 Skf Kugellagerfabriken Gmbh Abdichtung fuer waelzlager.
JPS5694028A (en) * 1979-12-27 1981-07-30 Ntn Toyo Bearing Co Ltd Seal for roll bearing
JPH022526U (zh) * 1988-06-16 1990-01-09
US5037213A (en) * 1988-06-16 1991-08-06 Nippon Seiko Kabushiki Kaisha Sealed rolling bearing
JPH08226449A (ja) * 1995-02-17 1996-09-03 Ntn Corp 転がり軸受の密封装置およびそのシール
JPH09329148A (ja) * 1996-06-05 1997-12-22 Nippon Seiko Kk 密封型転がり軸受
EP1167792A2 (en) * 2000-06-30 2002-01-02 Skf Industrie S.P.A. Sealing means for a rolling contact bearing
CN201050553Y (zh) * 2007-06-20 2008-04-23 人本集团有限公司 球轴承中的轴承外圈结构
CN201614950U (zh) * 2009-12-18 2010-10-27 奇瑞汽车股份有限公司 一种发动机正时皮带用张紧器
CN209781482U (zh) * 2019-03-26 2019-12-13 宁波人和机械轴承有限公司 一种密封性好的深沟球轴承
CN210565752U (zh) * 2019-08-16 2020-05-19 绍兴三雄汽配有限公司 一种带防松结构的汽车涨紧轮轴承
CN212959552U (zh) * 2020-07-09 2021-04-13 无锡华洋滚动轴承有限公司 汽车发电机内装解耦器皮带轮用轴承的密封结构

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