CN107725585A - 一种主动散热耐磨损轴承 - Google Patents

一种主动散热耐磨损轴承 Download PDF

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CN107725585A
CN107725585A CN201710919501.3A CN201710919501A CN107725585A CN 107725585 A CN107725585 A CN 107725585A CN 201710919501 A CN201710919501 A CN 201710919501A CN 107725585 A CN107725585 A CN 107725585A
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许成
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Jhy Titanium Industry Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/525Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
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    • C09D1/00Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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    • C23C24/00Coating starting from inorganic powder
    • C23C24/02Coating starting from inorganic powder by application of pressure only
    • C23C24/04Impact or kinetic deposition of particles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14Bearings 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
    • F16C19/16Bearings 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 a single row of balls
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/58Raceways; Race rings
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    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/58Raceways; Race rings
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    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C37/00Cooling of bearings
    • F16C37/007Cooling of bearings of rolling bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2223/00Surface treatments; Hardening; Coating
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    • F16C2223/42Coating surfaces by spraying the coating material, e.g. plasma spraying

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Abstract

本发明公开了一种主动散热耐磨损轴承,包括轴承外圈、轴承内圈、滚动钢珠,滚动钢珠设在轴承外圈和轴承内圈之间。轴承内圈上设有进油孔,便于添加润滑剂,减小轴承在转动时的机械摩擦阻力,减少机械做无用功;轴承外圈内设置有磁铁a,轴承内圈上设有磁铁b,产生磁场效应,降低了轴承传动机械摩擦,减少了其能量消耗,从而延长其使用寿命。一种主动散热耐磨损轴承在工作时能主动散热,通过轴承外圈的转动带动设于其上的翅片转动,从而产生风扇的吹风效果,加快空气流速,便于热量的散发,不需要额外附加散热装置且结构简单,节省能量,节约成本。

Description

一种主动散热耐磨损轴承
技术领域
本发明属于机械零部件技术领域,具体涉及一种主动散热耐磨损轴承。
背景技术
轴承在机械传动过程中起到举足轻重的作用,轴承一般由轴承内圈、轴承外圈及两者之间设置的滚动钢珠组成,国内生产的轴承大多使用寿命不长。一方面,轴承外壁上一般不设置固定滑动钢珠的凹槽,加上长时间处于潮湿环境,滚动钢珠会生锈;另一方面,轴承工作时滑动钢珠与轴承圈之间产生磨擦,从而导致滚动受阻,都会影响机械的工作效率。在轴承工作时,滚动钢珠和轴承外圈、轴承内圈之间产生摩擦,会产生大量的热量,尤其在轴承高速运转时,产生的热量更大,有时还会造成保持架烧伤或断裂,使轴承不能正常工作。
发明内容
本发明的目的是提供一种主动散热耐磨损轴承,具有摩擦力小和主动散热特点。
本发明所采用的一种技术方案是:一种主动散热耐磨损轴承,包括轴承外圈和轴承内圈,轴承外圈和轴承内圈轴向交错设置,轴承外圈和轴承内圈之间设有滚动钢珠,轴承外圈上设置导槽,轴承外圈内均匀嵌入多块磁铁a,轴承内圈内均匀嵌入多块磁铁b,轴承内圈上设有贯通轴承内圈的进油孔。
本发明的特点还在于,
轴承外圈的内壁边缘均匀焊接有多片翅片,翅片沿着滚动钢珠的滚动轨迹外设置,翅片沿同一方向倾斜设置。
轴承外圈和轴承内圈表层均涂有多孔钛涂层,该多孔钛涂层的形成方法具体如下:
步骤1、按质量百分数分别称取如下原料:
萘85%-95%、硬脂酸0.5%-3.5%、聚乙烯蜡2.5%-10%,余量选用TiH2粉末,以上原料的质量总和为100%;
步骤2、将步骤1中称取的所有原料置于混炼炉内,在70℃-90℃条件下混炼,混炼的时间为25分钟-125分钟;
步骤3、采用Kinetiks4000型高速高压冷喷涂设备,将经步骤2得到涂层料均匀喷涂到轴承外圈和轴承内圈上;
步骤4、将经步骤3喷涂了涂层料的轴承外圈、轴承内圈置于烧结炉内进行烧结,在轴承外圈和轴承内圈表面形成多孔钛涂层。
步骤1中,TiH2粉末的平均粒径为40μm-55μm、氧含量为0.28-0.35wt%。
步骤3中,喷涂压力为2.5MPa-5MPa,工作气体为N2,气体加热温度为280℃-320℃,喷涂距离为20-30mm。
步骤4中,炉内绝对真空度为0.15Pa-10.5Pa,以1.5-3℃/分钟升温至75-90℃保温5-12小时;再以1-3℃/分钟升温到180-240℃保温0.5-1.5小时后,抽真空至炉内绝对真空度小于等于1.15×10-3Pa,以7-15℃/分钟的速度升温到450-600℃保温1-2小时,最后,以12-20℃/分钟再升温到1100-1350℃保温2.5-6小时。
本发明的有益效果是:
(1)本发明一种主动散热耐磨损轴承,在工作时能主动散热,不需要额外附加散热装置且结构简单;
(2)本发明一种主动散热耐磨损轴承,便于添加润滑剂,减小轴承在转动时机械摩擦阻力,减少机械做无用功;
(3)本发明一种主动散热耐磨损轴承,在轴承外圈上设置有磁铁a,在轴承内圈上设有磁铁b,通过所设的磁铁a和磁铁b所产生的磁场效应,降低了轴承传动机械摩擦,减少了其能量消耗;
(4)本发明一种主动散热耐磨损轴承,表面涂有多孔钛涂层,增强了轴承的耐磨性能,从而延长其使用寿命。
附图说明
图1是本发明一种主动散热耐磨损轴承的结构示意图;
图2是本发明一种主动散热耐磨损轴承中轴承外圈的结构图。
图中,1.轴承外圈,2.轴承内圈,3.滚动钢珠,4.磁铁,5.导磁铁,6.进油孔,7.翅片,8.导槽。
具体实施方式
下面结合附图和具体实施方式对本发明进行详细说明。
本发明一种主动散热耐磨损轴承,如图1和图2所示,包括轴承外圈1和轴承内圈2,轴承外圈1和轴承内圈2轴向交错设置,轴承外圈1和轴承内圈2之间设有滚动钢珠3,轴承外圈1上设置导槽8,轴承外圈1内均匀嵌入多块磁铁a4,轴承内圈2内均匀嵌入多块磁铁b5,轴承内圈2上设有贯通轴承内圈2的进油孔6;轴承外圈1的内壁边缘均匀焊接有多片翅片7,所有翅片7沿着滚动钢珠3的滚动轨迹外设置,所有翅片7沿同一方向倾斜设置。
轴承外圈1和轴承内圈2表层均涂有多孔钛涂层,该多孔钛涂层的形成方法具体如下:
步骤1、按质量百分数分别称取如下原料:
萘85%-95%、硬脂酸0.5%-3.5%、聚乙烯蜡2.5%-10%,余量选用TiH2粉末,以上原料的质量总和为100%;
步骤2、将步骤1中称取的所有原料置于混炼炉内,在70℃-90℃条件下混炼,混炼的时间为25分钟-125分钟;
步骤3、采用Kinetiks4000型高速高压冷喷涂设备,将经步骤2得到涂层料均匀喷涂到轴承外圈1和轴承内圈2上;
步骤4、将经步骤3喷涂了涂层料的轴承外圈1、轴承内圈2置于烧结炉内进行烧结,在轴承外圈1和轴承内圈2表面形成多孔钛涂层。
步骤1中,TiH2粉末的平均粒径为40μm-55μm、氧含量为0.28-0.35wt%。
步骤3中,喷涂压力为2.5MPa-5MPa,工作气体为N2,气体加热温度为280℃-320℃,喷涂距离为20-30mm。
步骤4中,炉内绝对真空度为0.15Pa-10.5Pa,以1.5-3℃/分钟升温至75-90℃保温5-12小时;再以1-3℃/分钟升温到180-240℃保温0.5-1.5小时后,抽真空至炉内绝对真空度小于等于1.15×10-3Pa,以7-15℃/分钟的速度升温到450-600℃保温1-2小时,最后,以12-20℃/分钟再升温到1100-1350℃保温2.5-6小时。
本发明一种主动散热耐磨损轴承的工作过程如下:
当轴承外圈1内壁边缘设有翅片7时,轴承内圈2即为定子,轴承外圈1在轴承工作时高速旋转,带动翅片7旋转,产生风扇的吹风效果,使得空气流动加速,便于热量的散发。轴承内圈2内设有磁铁b5,轴承外圈1内设置有磁铁a4,通过所设的磁铁a4和磁铁b5所产生的磁场效应,降低了轴承传动机械摩擦。轴承运动过程中通过进油孔6增加润滑剂,能够保证轴承在运动过程中处于润滑状态,是其安全可靠。
本发明一种主动散热耐磨损轴承优点在于,不但便于添加润滑剂,减小轴承在转动时的机械摩擦阻力,而且,轴承表面涂有多孔钛涂层,增强了轴承的耐磨性能,从而延长其使用寿命;同时,通过所设的磁铁所产生的磁场效应,降低了轴承传动机械摩擦,减少了其能量消耗。在工作时能主动散热,不需要额外附加散热装置且结构简单,节省能量,节约成本。
实施例1:
步骤1、按质量百分数分别称取如下原料:
萘85%-95%、硬脂酸0.5%-3.5%、聚乙烯蜡2.5%-10%余量选用平均粒径为40μm、氧含量为0.35wt%的TiH2粉末置于混炼炉内,以上原料的质量总和为100%;
步骤2、将步骤1中称取的所有原料置于混炼炉内,在70℃条件下混炼,混炼的时间为25分钟,获取流动性良好、粘性良好的涂层料;
步骤3、采用Kinetiks4000型高速高压冷喷涂设备,将经步骤2得到涂层料均匀喷涂到轴承外圈1和轴承内圈2上,喷涂压力为2.5MPa,工作气体为N2,气体加热温度为280℃,喷涂距离为20mm;
步骤4、将喷涂了涂层料的轴承外圈1、轴承内圈2置于烧结炉内,炉内绝对真空度为0.15Pa,以1.5℃/分钟升温至75℃保温5小时;再以1℃/分钟升温到180℃保温0.5小时后,抽真空至炉内绝对真空度小于等于0.85×10-3Pa,以7℃/分钟的速度升温到450℃保温1小时,最后,以12℃/分钟再升温到1100℃保温2.5小时。烧结后获得在轴承外圈1和轴承内圈2表面形成多孔钛涂层。
实施例2:
步骤1、按质量百分数称取萘90%、硬脂酸1.5%、聚乙烯蜡2.5%,余量选用平均粒径为45μm、氧含量为0.30wt%的TiH2粉末置于混炼炉内,以上原料的质量总和为100%;
步骤2、将步骤1中称取的所有原料置于混炼炉内,在80℃条件下混炼,混炼的时间为60分钟,获取流动性良好、粘性良好的涂层料;
步骤3、采用Kinetiks4000型高速高压冷喷涂设备,将经步骤2得到涂层料均匀喷涂到轴承外圈1和轴承内圈2上,喷涂压力为3.5MPa,工作气体为N2,气体加热温度为300℃,喷涂距离为25mm;
步骤4、将喷涂了涂层料的轴承外圈1、轴承内圈2置于烧结炉内,炉内绝对真空度为5.0Pa,以2℃/分钟升温至80℃保温8小时;再以2℃/分钟升温到210℃保温1小时后,抽真空至炉内绝对真空度为1×10-3Pa,以10℃/分钟的速度升温到500℃保温1.5小时,最后,以15℃/分钟再升温到1250℃保温4小时。烧结后获得在轴承外圈1和轴承内圈2表面形成多孔钛涂层。
实施例3:
步骤1、按质量百分数称取萘95%、硬脂酸0.5%、聚乙烯蜡2.5%,余量选用平均粒径为55μm、氧含量为0.35wt%的TiH2粉末置于混炼炉内,以上原料的质量总和为100%;
步骤2、将步骤1中称取的所有原料置于混炼炉内,在90℃条件下混炼,混炼的时间为125分钟,获取流动性良好、粘性良好的涂层料;
步骤3、采用Kinetiks4000型高速高压冷喷涂设备,将经步骤2得到涂层料均匀喷涂到轴承外圈1和轴承内圈2上,喷涂压力为5MPa,工作气体为N2,气体加热温度为320℃,喷涂距离为30mm;
步骤4、将喷涂了涂层料的轴承外圈1、轴承内圈2置于烧结炉内,炉内绝对真空度为10.5Pa,以3℃/分钟升温至90℃保温12小时;再以3℃/分钟升温到240℃保温1.5小时后,抽真空至炉内绝对真空度为1.15×10-3Pa,以15℃/分钟的速度升温到600℃保温2小时,最后,以20℃/分钟再升温到1350℃保温6小时。烧结后获得在轴承外圈1和轴承内圈2表面形成多孔钛涂层。

Claims (6)

1.一种主动散热耐磨损轴承,其特征在于,包括轴承外圈(1)和轴承内圈(2),所述轴承外圈(1)和所述轴承内圈(2)轴向交错设置,所述轴承外圈(1)和所述轴承内圈(2)之间设有滚动钢珠(3),所述轴承外圈(1)上设置导槽(8),所述轴承外圈(1)内均匀嵌入多块磁铁a(4),所述轴承内圈(2)内均匀嵌入多块磁铁b(5),所述轴承内圈(2)上设有贯通轴承内圈(2)的油孔(6)。
2.根据权利要求1所述的一种主动散热耐磨损轴承,其特征在于,所述轴承外圈(1)的内壁边缘均匀焊接有多片翅片(7),所述所有翅片(7)沿同一方向倾斜设置。
3.根据权利要求1所述的一种主动散热耐磨损轴承,其特征在于,所述轴承外圈(1)和所述轴承内圈(2)表面均涂有多孔钛涂层,该多孔钛涂层的形成方法具体如下:
步骤1、按质量百分数分别称取如下原料:
萘85%-95%、硬脂酸0.5%-3.5%、聚乙烯蜡2.5%-10%,余量选用TiH2粉末,以上原料的质量总和为100%;
步骤2、将步骤1中称取的所有原料置于混炼炉内,在70℃-90℃条件下混炼,混炼的时间为25分钟-125分钟;
步骤3、采用Kinetiks4000型高速高压冷喷涂设备,将经步骤2得到涂层料均匀喷涂到轴承外圈(1)和轴承内圈(2)上;
步骤4、将经步骤3喷涂了涂层料的轴承外圈(1)、轴承内圈(2)置于烧结炉内进行烧结,在轴承外圈(1)和轴承内圈(2)表面形成多孔钛涂层。
4.根据权利要求3所述的一种主动散热耐磨损轴承,其特征在于,所述步骤1中,TiH2粉末的平均粒径为40μm-55μm、氧含量为0.28-0.35wt%。
5.根据权利要求3所述的一种主动散热耐磨损轴承,其特征在于,所述步骤3中,喷涂压力为2.5MPa-5MPa,工作气体为N2,气体加热温度为280℃-320℃,喷涂距离为20-30mm。
6.根据权利要求3所述的一种主动散热耐磨损轴承,其特征在于,所述步骤4中,炉内绝对真空度为0.15Pa-10.5Pa,以1.5-3℃/分钟升温至75-90℃保温5-12小时;再以1-3℃/分钟升温到180-240℃保温0.5-1.5小时后,抽真空至炉内绝对真空度小于等于1.15×10-3Pa,以7-15℃/分钟的速度升温到450-600℃保温1-2小时,最后,以12-20℃/分钟再升温到1100-1350℃保温2.5-6小时。
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