CN113175477A - 一种凹球面调心滚子轴承 - Google Patents

一种凹球面调心滚子轴承 Download PDF

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CN113175477A
CN113175477A CN202110318056.1A CN202110318056A CN113175477A CN 113175477 A CN113175477 A CN 113175477A CN 202110318056 A CN202110318056 A CN 202110318056A CN 113175477 A CN113175477 A CN 113175477A
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raceway
retainer
roller
curvature
self
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燕敬祥
张士玉
燕修磊
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Shandong Cooper Bearing Technology Service Co ltd
Shandong Xiuhan Inspection And Testing Co ltd
Shandong Camery Kmr Bearing Science & Technology Co ltd
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Shandong Cooper Bearing Technology Service Co ltd
Shandong Xiuhan Inspection And Testing Co ltd
Shandong Camery Kmr Bearing Science & Technology 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
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06—Ball or roller bearings
    • F16C23/08—Ball or roller bearings self-adjusting
    • F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
    • F16C23/084—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface sliding on a complementary spherical surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
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    • F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
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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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/34—Rollers; Needles
    • F16C33/36—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles
    • F16C33/467—Details of individual pockets, e.g. shape or roller 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/48—Cages for rollers or needles for multiple rows of rollers or needles
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/56—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
    • F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
    • 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/10—Alloys based on copper
    • 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/60—Ferrous alloys, e.g. steel alloys
    • F16C2204/66—High carbon steel, i.e. carbon content above 0.8 wt%, e.g. through-hardenable steel
    • 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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    • F16C2206/00—Materials with ceramics, cermets, hard carbon or similar non-metallic hard materials as main constituents
    • F16C2206/40—Ceramics, e.g. carbides, nitrides, oxides, borides of a metal
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    • 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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    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
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    • F16C2208/60—Polyamides [PA]
    • F16C2208/62—Polyamides [PA] high performance polyamides, e.g. PA12, PA46
    • 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
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/70—Diameters; Radii
    • 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
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    • Y02T10/00—Road transport of goods or passengers
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    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

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Abstract

一种凹球面调心滚子轴承，其零件包括外圈、内圈、滚子、保持架。所述外圈为圆环形结构，具有左右双曲率滚道，分别为左侧滚道曲率、右侧滚道曲率，两侧滚道均为凸球面形状；所述内圈为圆环形结构，内圈滚道为凸球面形状，内圈滚道圆心与轴承几何中心相聚为一点；所述滚子滚动面为凹球面，轴承钢材质或陶瓷材质；所述保持架为环形结构，尼龙材质或黄铜材质，保持架外径锥面、保持架内径锥面分别关于滚子回转轴线对称。应用本发明设计方案的凹球面调心滚子轴承，具有高转速、易加工、低摩擦、高可靠性、大倾斜角度的显著优点。

Description

一种凹球面调心滚子轴承
技术领域
本发明涉及轴承技术领域，主要涉及一种凹球面调心滚子轴承。
背景技术
常规调心滚子轴承设计的零件包括外圈、内圈、凸球面滚子、保持架等，外圈滚道呈球面形，内圈具有双凹曲率滚道，保持架通常由冲压钢板、尼龙或黄铜材质制成，允许自动调心，受结构设计限制，其内外圈相对倾斜角度最大值为2度；内圈通常设计有两到三个挡边结构，其目的是对滚子进行限位，为防止与滚子倒角产生干涉以及方便磨加工内滚道，必须加工相应的越程槽，当轴向载荷较大时，极易在挡边越程槽位置出现裂纹，甚至挡边局部断裂现象，加大了加工难度，降低了可靠性；运转时，需要借助保持架中筋结构对滚子位置进行定位，增大了轴承运转时的摩擦阻力。
发明内容
本发明的目的是提供一种凹球面调心滚子轴承，内外圈极限相对倾斜角度可达8度，其具有高转速、易加工、低摩擦、高可靠性、大倾斜角度的显著优点。
本发明的目的可采用如下技术方案来实现：本发明的凹球面调心滚子轴承，零件包括外圈、内圈、滚子、保持架。
所述外圈为圆环形结构，具有左右双曲率滚道，分别为左侧滚道曲率、右侧滚道曲率，两侧滚道均为凸球面形状；所述内圈为圆环形结构，内圈滚道为凸球面形状，内圈滚道圆心与轴承几何中心相聚为一点；所述滚子滚动面为凹球面，轴承钢材质或陶瓷材质；所述保持架为环形结构，尼龙材质或黄铜材质。
所述外圈左侧滚道曲率、右侧滚道曲率分别与滚子滚动面曲率相匹配，两者半径曲率比值为1.02~1.04。
所述外圈滚道中间区域为与外圈回转轴线平行的圆柱面。
所述内圈滚道与滚子滚动面曲率相匹配，两者半径曲率比值为1.04~1.06。
所述保持架兜孔直径与滚子直径相匹配，两者比值为1.005~1.008。
所述保持架兜孔长度与滚子长度相匹配，两者比值为1.006~1.009。
所述保持架内径圆柱面、保持架内径锥面的交点与滚子外侧端面对齐。
所述保持架外径圆柱面、保持架外径锥面的交点与滚子内侧端面对齐。
所述保持架外径锥面、保持架内径锥面分别关于滚子回转轴线对称，外径锥面、内径锥面之间的保持架壁厚与滚子直径的比值为0.49~0.51。
附图说明
附图1为现有标准设计的调心滚子轴承示意图。
附图2为本发明凹球面调心滚子轴承示意图。
附图3为本发明凹球面调心滚子轴承极限倾斜角度示意图。
附图4为本发明凹球面调心滚子轴承外圈示意图。
附图5为本发明凹球面调心滚子轴承内圈示意图。
附图6为本发明凹球面调心滚子轴承保持架示意图。
图中：1外圈，1.1左侧曲率滚道，1.2右侧曲率滚道，1.3外圈滚道中间区域，1.4外圈回转轴线，2内圈，2.1内圈滚道，2.2轴承几何中心，3滚子，3.1滚子滚动面，3.2滚子外侧端面，3.3滚子内侧端面，3.4滚子回转轴线，4保持架，4.1保持架兜孔，4.2保持架外径圆柱面，4.3保持架内径圆柱面，4.4保持架内径锥面，4.5保持架外径锥面
具体实施方式
结合附图，说明本发明的具体实施例。
如附图2至附图6所示：本发明的凹球面调心滚子轴承，包括外圈1、内圈2、滚子3、保持架4。
所述外圈1为圆环形结构，具有左右双曲率滚道，分别为左侧滚道曲率1.1、右侧滚道曲率1.2，两侧滚道均为凸球面形状；所述内圈2为圆环形结构，内圈滚道2.1为凸球面形状，内圈滚道2.1圆心与轴承几何中心2.2相聚为一点；所述滚子3滚动面3.1为凹球面，轴承钢材质或陶瓷材质；所述保持架4为环形结构，尼龙材质或黄铜材质。
所述外圈左侧滚道曲率1.1、右侧滚道曲率1.2分别与滚子3滚动面3.1曲率相匹配，两者半径曲率比值为1.02~1.04。
所述外圈滚道中间区域1.3为与外圈回转轴线1.4平行的圆柱面。
所述内圈滚道2.1与滚子滚动面3.1曲率相匹配，两者半径曲率比值为1.04~1.06。
所述保持架兜孔4.1直径与滚子3直径相匹配，两者比值为1.005~1.008。
所述保持架兜孔4.1长度与滚子3长度相匹配，两者比值为1.006~1.009。
所述保持架内径圆柱面4.3、保持架内径锥面4.4的交点与滚子外侧端面3.2对齐。
所述保持架外径圆柱面4.2、保持架外径锥面4.5的交点与滚子内侧端面3.3对齐。
所述保持架外径锥面4.5、保持架内径锥面4.4分别关于滚子回转轴线3.4对称，外径锥面4.5、内径锥面4.4之间的保持架4壁厚与滚子3直径的比值为0.49~0.51。
本发明的有益效果是：
外圈采用左右双曲率滚道，且设置为凸球面形状，配合滚子滚动面凹球面设计及保持架设置，使外圈、滚子、保持架装配后成为组件，内圈滚动面凸球面设置，使得轴承的离心距较原设计有了明显的缩短，有效降低了轴承高速运转时的离心力，且取消了原设计的内圈两侧的挡边以及保持架的中筋结构，进一步降低了运转时的摩擦阻力，摩擦阻力更低，允许更高的极限转速；原设计的内圈两侧的挡边以及保持架的中筋结构的取消，极大降低了加工难度，并从根本上解决了挡边易破裂的难题，提高了轴承的运转的可靠性；内圈滚道设置为球面，且滚道圆心与轴承几何中心相聚为一点，使得轴承在运转时允许内圈与外圈组件之间有大的倾斜角度。综上所述，本发明的凹球面调心滚子轴承,具有高转速、易加工、低摩擦、高可靠性、大倾斜角度的显著优点。

Claims (9)

1.一种凹球面调心滚子轴承，其零件包括外圈、内圈、滚子、保持架，其特征在于：
所述外圈为圆环形结构，具有左右双曲率滚道，分别为左侧滚道曲率、右侧滚道曲率，两侧滚道均为凸球面形状；所述内圈为圆环形结构，内圈滚道为凸球面形状，内圈滚道圆心与轴承几何中心相聚为一点；所述滚子滚动面为凹球面，轴承钢材质或陶瓷材质；所述保持架为环形结构，尼龙材质或黄铜材质。
2.根据权利要求1所述的凹球面调心滚子轴承，其特征是所述外圈左侧滚道曲率、右侧滚道曲率分别与滚子滚动面曲率相匹配，两者半径曲率比值为1.02~1.04。
3.根据权利要求1所述的凹球面调心滚子轴承，其特征是所述外圈滚道中间区域为与外圈回转轴线平行的圆柱面。
4.根据权利要求1所述的凹球面调心滚子轴承，其特征是所述内圈滚道与滚子滚动面曲率相匹配，两者半径曲率比值为1.04~1.06。
5.根据权利要求1所述的凹球面调心滚子轴承，其特征是所述保持架兜孔直径与滚子直径相匹配，两者比值为1.005~1.008。
6.根据权利要求1所述的凹球面调心滚子轴承，其特征是所述保持架兜孔长度与滚子长度相匹配，两者比值为1.006~1.009。
7.根据权利要求1所述的凹球面调心滚子轴承，其特征是所述保持架内径圆柱面、保持架内径锥面的交点与滚子外侧端面对齐。
8.根据权利要求1所述的凹球面调心滚子轴承，其特征是所述保持架外径圆柱面、保持架外径锥面的交点与滚子内侧端面对齐。
9.根据权利要求1所述的凹球面调心滚子轴承，其特征是所述保持架外径锥面、保持架内径锥面分别关于滚子回转轴线对称，外径锥面、内径锥面之间的保持架壁厚与滚子直径的比值为0.49~0.51。
CN202110318056.1A 2021-03-25 2021-03-25 一种凹球面调心滚子轴承 Pending CN113175477A (zh)

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Application publication date: 20210727