WO2024125162A1 - Roller bearing and cage - Google Patents

Roller bearing and cage Download PDF

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Publication number
WO2024125162A1
WO2024125162A1 PCT/CN2023/130251 CN2023130251W WO2024125162A1 WO 2024125162 A1 WO2024125162 A1 WO 2024125162A1 CN 2023130251 W CN2023130251 W CN 2023130251W WO 2024125162 A1 WO2024125162 A1 WO 2024125162A1
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WO
WIPO (PCT)
Prior art keywords
guide surface
cage
bearing
ring
roller bearing
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PCT/CN2023/130251
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French (fr)
Chinese (zh)
Inventor
徐镜峰
张玲利
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舍弗勒技术股份两合公司
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Publication of WO2024125162A1 publication Critical patent/WO2024125162A1/en

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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
    • F16C33/46—Cages for 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
    • F16C33/58—Raceways; Race rings
    • 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

Definitions

  • the present invention relates to the field of roller bearings, which have a cage, a bearing outer ring, a bearing inner ring and rollers, wherein the cage has a cage guide surface in contact with the bearing inner ring and/or the bearing outer ring, and the bearing inner ring and/or the bearing outer ring have a ferrule guide surface opposite to the cage guide surface, and the cage guide surface and the ferrule guide surface are in friction contact.
  • the present invention also relates to a corresponding cage.
  • a cage In the roller bearings of the prior art, a cage is usually provided.
  • the cage partially wraps all or part of the rollers and moves with the rollers. It is used to isolate the rolling elements and usually guides the rollers and holds them in the bearing.
  • a cage structure is known from EP 1605175 B1, in which the rib of the bearing ring guides the cage, that is, the inner hole surface of the cage and the outer cylindrical surface of the rib of the inner ring are in contact or the outer cylindrical surface of the cage and the inner hole surface of the rib of the outer ring are in contact. When the bearing is working, friction will occur between the two contact surfaces. Both contact surfaces are straight surfaces without any trimming area, and only a very small guiding gap is provided between the two surfaces.
  • the guiding clearance between the guide surface of the ring rib and the inner hole surface of the cage is too small, and the lubricating grease cannot enter the guiding surface. This may cause poor lubrication between the cage and the ring rib, excessive friction on the guiding surface, heating of the cage or ring, or jamming of the bearing.
  • the technical problem to be solved by the present invention is to provide an improved roller bearing, which can overcome the problems in the above-mentioned prior art.
  • the technical problem is solved by a roller bearing designed according to the present invention.
  • the roller bearing comprises a cage, a bearing outer ring, a bearing inner ring and a roller, wherein the cage has a cage guide surface in contact with the bearing inner ring and/or the bearing outer ring, and the bearing inner ring and/or the bearing outer ring have a ring guide surface opposite to the cage guide surface.
  • the cage guide surface and/or the ring guide surface have a modified design, so that an oil inlet is formed between the cage guide surface and the ring guide surface.
  • the contact guide surface of the cage and/or the ring is designed with a modified shape, it is convenient for lubricating grease to enter the guide surface, thereby improving the lubrication of the guide surface, reducing the friction of the guide surface, and avoiding problems such as heating or jamming.
  • the modification design referred to in the present invention refers to the feature processing of the surface structure of the guide surface, so as to form an oil inlet between the two guide surfaces in contact with each other, preferably forming a wedge-shaped oil inlet, thereby optimizing the friction conditions between the guide surfaces.
  • the modification design can be performed on both guide surfaces in contact with each other, or only on one of the guide surfaces, as long as an oil inlet can be formed between them to facilitate the entry of grease.
  • the outer ring of the bearing and/or the inner ring of the bearing have a rib, and the retaining frame is in contact with the rib, that is, an oil inlet is formed between the rib and the retaining frame.
  • the modification method is, for example, arc modification, logarithmic modification, single-segment oblique line modification, multi-segment oblique line modification or curvature modification, and the present invention does not limit the specific modification method.
  • the guide surface with a modified design is divided into a first modified surface, a second modified surface and an intermediate guide surface.
  • the first modified surface and the second modified surface are located on both sides of the guide surface, that is, the side close to the external environment. Only the two sides of the guide surface are modified, and the purpose of optimizing lubrication can be achieved with the minimum processing cost.
  • the first modified surface and the second modified surface can be made symmetrical or asymmetrical along the center line of the guide surface.
  • first modified surface and the second modified surface are made symmetrical along the center line of the guide surface, so that oil inlets of different sizes can be formed on both sides of the guide surface, thereby adapting to the situation where the lubricating oil on both sides of the guide surface is unequal.
  • the intermediate guide surface is designed as a flat plane, and since the intermediate guide surface contacts the relative guide surface, the friction between the guide surfaces can be reduced.
  • the width of the intermediate guide surface accounts for at least 40% of the total width of the guide surface, that is, the modified part accounts for only 60% at most. The modified part is limited so as not to affect the main function of the guide part.
  • the cage has a cage guide surface that contacts the bearing inner ring and/or the bearing outer ring of the roller bearing, and the bearing inner ring and/or the bearing outer ring has a ring guide surface opposite to the cage guide surface.
  • the cage guide surface has a trimming design, so that an oil inlet is formed between the cage guide surface and the ring guide surface.
  • the cage also has the above-mentioned technical features related to trimming, which will not be repeated here.
  • the cage is made of steel, which can reduce the manufacturing cost and make the trimming more precise.
  • FIG1 shows a partial cross-sectional view of a bearing designed according to a first embodiment of the present invention
  • FIG2 shows a partial cross-sectional view of a bearing designed according to a second embodiment of the present invention
  • FIG3 is a schematic diagram showing a guide surface with a modified structure designed according to the present invention.
  • Figures 1 and 2 show partial cross-sectional views of a bearing designed according to the present invention.
  • the bearing is, for example, a cylindrical roller bearing having an outer ring, an inner ring, a cage and cylindrical rollers, but the present invention does not limit the type of bearing.
  • the rib of the inner ring 30 of the bearing guides the cage 20.
  • a wedge-shaped oil inlet 40 is formed between the modified cage guide surface 201 and the ferrule guide surface 301.
  • the oil inlet 40 can more conveniently allow lubricating grease to enter the guide surface between the cage and the ferrule during the operation of the bearing. Sufficient lubrication can reduce the occurrence of heating and seizure of the cage, and effectively improve the life of the cage and the bearing.
  • the flange of the bearing outer ring 50 guides the cage 20.
  • an oil inlet 40 is formed between the modified cage guide surface 201 and the ring guide surface 501.
  • the function of the oil inlet 40 is the same as that in the first embodiment, so it will not be described in detail.
  • FIG3 shows a schematic diagram of a guide surface with a shaping structure.
  • the guide surface can be a ferrule guide surface 301, 501, or a retainer guide surface 201, or a guide surface provided on both the ferrule and the retainer.
  • the guide surface is divided into three parts, namely a first shaping surface S1, an intermediate guide surface S2, and a second shaping surface S3, wherein the intermediate guide surface can be a straight surface (non-shaping surface) for contacting the guide surface of the ferrule. Only the first shaping surface S1 and the second shaping surface S3 are subjected to shaping design.
  • the width L2 of the intermediate guide surface S2 accounts for at least 40% of the total width of the guide surface, that is, 0.4 ⁇ (L2/Lc) ⁇ 1.
  • the first shaping surface S1 and the second shaping surface S3 can be made along the retainer.
  • the center line of the guide surface of the support frame is symmetrical to facilitate the shaping process.
  • the first shaping surface S1 and the second shaping surface S3 can also be made asymmetrical according to actual working conditions.
  • the first trimming surface S1 and the second trimming surface S3 adopt a single-segment oblique line segment trimming method.
  • the trimming methods of the first trimming surface S1 and the second trimming surface S3 can be arc trimming, logarithmic trimming, single-segment oblique line segment trimming, multi-segment oblique line segment trimming or other curvature trimming.
  • the ring guide surface of the bearing inner ring and/or the bearing outer ring can also have a trimming design.
  • the cage guide surface can have a trimming design or not, as long as an oil inlet is formed between the ring guide surface and the cage guide surface.
  • the actual design process is not limited to the trimming methods described above.
  • Reference numerals list 10 Roller 20 Cage 201 Cage guide surface 30 Inner Circle 301 Ferrule guide surface 40 Oil inlet 50 outer ring 501 Ferrule guide surface S1 First trimming surface L1 Width of the first trimming surface S2 Middle guide surface L2 Middle guide surface width S3 Second trimming surface L3 Second trimming surface width Lc Total width of guide surface

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

Abstract

The present invention relates to a roller bearing. The roller bearing is provided with a cage (20), a bearing outer ring (50), a bearing inner ring (30) and a roller (10), wherein the cage (20) is provided with a cage guide surface (201) coming into contact with the bearing inner ring (30) and/or with the bearing outer ring, and the bearing inner ring (30) and/or the bearing outer ring (50) are/is provided with a ferrule guide surface (301, 501) opposite the cage guide surface (201), characterized in that the cage guide surface (201) and/or the ferrule guide surface (301, 501) have/has a modified design, such that an oil intake opening (40) is formed between the cage guide surface (201) and the ferrule guide surface (301, 501). In addition, the present invention further relates to a cage.

Description

滚子轴承和保持架Roller bearings and cages 技术领域Technical Field
本发明涉及滚子轴承领域，该滚子轴承具有保持架、轴承外圈、轴承内圈以及滚子，其中，保持架具有与轴承内圈和/或轴承外圈接触的保持架引导面，轴承内圈和/或轴承外圈具有与保持架引导面相对的套圈引导面，保持架引导面与套圈引导面会进行摩擦接触。此外，本发明还涉及相应的保持架。The present invention relates to the field of roller bearings, which have a cage, a bearing outer ring, a bearing inner ring and rollers, wherein the cage has a cage guide surface in contact with the bearing inner ring and/or the bearing outer ring, and the bearing inner ring and/or the bearing outer ring have a ferrule guide surface opposite to the cage guide surface, and the cage guide surface and the ferrule guide surface are in friction contact. In addition, the present invention also relates to a corresponding cage.
背景技术Background technique
在现有技术的滚子轴承中，通常会设有保持架。保持架部分地包裹全部或部分滚子，并随滚子运动，其用以隔离滚动体，通常还引导滚子并将其保持在轴承内。由EP 1605175 B1已知一种保持架结构，其轴承套圈的挡边引导保持架，即保持架的内孔面和内圈的挡边的外圆面相接触或保持架外圆面和外圈的挡边内孔面相接触。轴承工作时，两个接触面会产生摩擦。两个接触表面都是直表面，没有修型区域，两个表面之间只设有很小的引导间隙。In the roller bearings of the prior art, a cage is usually provided. The cage partially wraps all or part of the rollers and moves with the rollers. It is used to isolate the rolling elements and usually guides the rollers and holds them in the bearing. A cage structure is known from EP 1605175 B1, in which the rib of the bearing ring guides the cage, that is, the inner hole surface of the cage and the outer cylindrical surface of the rib of the inner ring are in contact or the outer cylindrical surface of the cage and the inner hole surface of the rib of the outer ring are in contact. When the bearing is working, friction will occur between the two contact surfaces. Both contact surfaces are straight surfaces without any trimming area, and only a very small guiding gap is provided between the two surfaces.
实际的应用中，套圈挡边引导面和保持架内孔面引导间隙太小，润滑油脂无法进入引导面，可能会出现保持架和套圈挡边之间润滑不良，引导面摩擦过大，保持架或套圈发热或轴承卡死的现象。In actual applications, the guiding clearance between the guide surface of the ring rib and the inner hole surface of the cage is too small, and the lubricating grease cannot enter the guiding surface. This may cause poor lubrication between the cage and the ring rib, excessive friction on the guiding surface, heating of the cage or ring, or jamming of the bearing.
发明内容Summary of the invention
本发明所要解决的技术问题是提供一种改进的滚子轴承，其能够克服上述现有技术中的问题。The technical problem to be solved by the present invention is to provide an improved roller bearing, which can overcome the problems in the above-mentioned prior art.
所述技术问题被根据本发明设计的一种滚子轴承所解决。该滚子轴承具有保持架、轴承外圈、轴承内圈以及滚子，其中，保持架具有与轴承内圈和/或轴承外圈接触的保持架引导面，轴承内圈和/或轴承外圈具有与保持架引导面相对的套圈引导面。根据本发明的设计，保持架引导面和/或套圈引导面具有修型设计，从而在保持架引导面和套圈引导面之间形成进油 口。由于保持架和/或套圈的接触引导面采用修型设计，方便润滑油脂进入引导面，以改善引导面的润滑情况，减少引导面的摩擦，避免发热或者卡死等问题的出现。The technical problem is solved by a roller bearing designed according to the present invention. The roller bearing comprises a cage, a bearing outer ring, a bearing inner ring and a roller, wherein the cage has a cage guide surface in contact with the bearing inner ring and/or the bearing outer ring, and the bearing inner ring and/or the bearing outer ring have a ring guide surface opposite to the cage guide surface. According to the design of the present invention, the cage guide surface and/or the ring guide surface have a modified design, so that an oil inlet is formed between the cage guide surface and the ring guide surface. Since the contact guide surface of the cage and/or the ring is designed with a modified shape, it is convenient for lubricating grease to enter the guide surface, thereby improving the lubrication of the guide surface, reducing the friction of the guide surface, and avoiding problems such as heating or jamming.
本发明所指的修型设计是指对引导面的表面结构进行特征加工，从而在相互接触的两个引导面之间形成进油口，优选形成楔形的进油口，因此优化引导面之间的摩擦条件。可以对相互接触的两个引导面都进行修型设计，也可以只对其中一个引导面进行修型设计，只要在他们之间可以形成进油口方便润滑脂进入即可。优选的是，轴承外圈和/或轴承内圈具有挡边，保持架与挡边相接触，即在挡边与保持架之间形成进油口。修型方式例如是圆弧修型、对数修型、单段斜线段修型、多段斜线段修型或者曲率修型等，本发明并不对具体的修型方式进行限定。The modification design referred to in the present invention refers to the feature processing of the surface structure of the guide surface, so as to form an oil inlet between the two guide surfaces in contact with each other, preferably forming a wedge-shaped oil inlet, thereby optimizing the friction conditions between the guide surfaces. The modification design can be performed on both guide surfaces in contact with each other, or only on one of the guide surfaces, as long as an oil inlet can be formed between them to facilitate the entry of grease. Preferably, the outer ring of the bearing and/or the inner ring of the bearing have a rib, and the retaining frame is in contact with the rib, that is, an oil inlet is formed between the rib and the retaining frame. The modification method is, for example, arc modification, logarithmic modification, single-segment oblique line modification, multi-segment oblique line modification or curvature modification, and the present invention does not limit the specific modification method.
根据本发明的优选实施方式，具有修型设计的引导面被分为第一修型面、第二修型面和中间引导面。第一修型面和第二修型面位于引导面的两侧，即靠近外部环境的一侧。只对引导面的两侧进行修型，能够以最小的加工成本达到优化润滑的目的。另外，可以根据实际工况需求，使得第一修型面和第二修型面沿引导面的中心线对称或者非对称。尤其优选的是，使得第一修型面和第二修型面沿引导面的中心线对称，可以使得在引导面的两侧形成大小不同的进油口，从而适应引导面两侧润滑油不等量的情况。另外优选的是，将中间引导面设计为平坦的平面，由于中间引导面与相对的引导面进行接触，从而能够降低引导面之间的摩擦。进一步优选的是，中间引导面的宽度占引导面总宽度的至少40％，即修型的部分最多只占60％。限制修型部分以免对引导部分的主要功能产生影响。According to a preferred embodiment of the present invention, the guide surface with a modified design is divided into a first modified surface, a second modified surface and an intermediate guide surface. The first modified surface and the second modified surface are located on both sides of the guide surface, that is, the side close to the external environment. Only the two sides of the guide surface are modified, and the purpose of optimizing lubrication can be achieved with the minimum processing cost. In addition, according to the actual working conditions, the first modified surface and the second modified surface can be made symmetrical or asymmetrical along the center line of the guide surface. It is particularly preferred that the first modified surface and the second modified surface are made symmetrical along the center line of the guide surface, so that oil inlets of different sizes can be formed on both sides of the guide surface, thereby adapting to the situation where the lubricating oil on both sides of the guide surface is unequal. It is also preferred that the intermediate guide surface is designed as a flat plane, and since the intermediate guide surface contacts the relative guide surface, the friction between the guide surfaces can be reduced. It is further preferred that the width of the intermediate guide surface accounts for at least 40% of the total width of the guide surface, that is, the modified part accounts for only 60% at most. The modified part is limited so as not to affect the main function of the guide part.
此外，上述技术问题还被根据本发明设计的一种用于滚子轴承的保持架所解决。该保持架具有与滚子轴承的轴承内圈和/或轴承外圈接触的保持架引导面，轴承内圈和/或轴承外圈具有保持架引导面相对的套圈引导面。保持架引导面具有修型设计，从而在保持架引导面和套圈引导面之间形成进油口。该保持架同样具有上面所述的与修型相关的技术特征，在此不再重复叙述。另外优选的是，该保持架是由钢材制成的，降低制造成本的同时能够使得修型更加精确。 In addition, the above technical problems are also solved by a cage for roller bearings designed according to the present invention. The cage has a cage guide surface that contacts the bearing inner ring and/or the bearing outer ring of the roller bearing, and the bearing inner ring and/or the bearing outer ring has a ring guide surface opposite to the cage guide surface. The cage guide surface has a trimming design, so that an oil inlet is formed between the cage guide surface and the ring guide surface. The cage also has the above-mentioned technical features related to trimming, which will not be repeated here. In addition, preferably, the cage is made of steel, which can reduce the manufacturing cost and make the trimming more precise.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
以下结合附图进一步描述本发明。图中以相同的附图标记来表示相同或功能相同的部件。附图为：The present invention is further described below in conjunction with the accompanying drawings. The same reference numerals are used in the drawings to represent the same or functionally identical components. The accompanying drawings are:
图1示出了根据本发明第一实施例设计的轴承的局部剖面图；FIG1 shows a partial cross-sectional view of a bearing designed according to a first embodiment of the present invention;
图2示出了根据本发明第二实施例设计的轴承的局部剖面图；FIG2 shows a partial cross-sectional view of a bearing designed according to a second embodiment of the present invention;
图3示出了根据本发明设计的具有修型结构的引导面的示意图；FIG3 is a schematic diagram showing a guide surface with a modified structure designed according to the present invention;
具体实施方式Detailed ways
图1和图2示出了根据本发明设计的轴承的局部剖面图。轴承例如是圆柱滚子轴承，具有外圈、内圈、保持架和圆柱滚子，但是本发明并不限定轴承的种类。Figures 1 and 2 show partial cross-sectional views of a bearing designed according to the present invention. The bearing is, for example, a cylindrical roller bearing having an outer ring, an inner ring, a cage and cylindrical rollers, but the present invention does not limit the type of bearing.
在图1所示的第一实施例中，轴承内圈30的挡边引导保持架20。通过对保持架20的引导面201进行修型等结构改进，修型后的保持架引导面201和套圈引导面301之间形成了楔形的进油口40。进油口40能够更加方便轴承运作过程中润滑油脂进入保持架和套圈之间的引导面，充分的润滑可以减少保持架发热，卡滞等现象出现，有效提高保持架和轴承的寿命。In the first embodiment shown in FIG1 , the rib of the inner ring 30 of the bearing guides the cage 20. By modifying the guide surface 201 of the cage 20 and other structural improvements, a wedge-shaped oil inlet 40 is formed between the modified cage guide surface 201 and the ferrule guide surface 301. The oil inlet 40 can more conveniently allow lubricating grease to enter the guide surface between the cage and the ferrule during the operation of the bearing. Sufficient lubrication can reduce the occurrence of heating and seizure of the cage, and effectively improve the life of the cage and the bearing.
在图2所示的第二实施例中，轴承外圈50的挡边引导保持架20。通过对保持架20的引导面201进行修型等结构改进，修型后的保持架引导面201和套圈引导面501之间形成了进油口40。该进油口40的作用与其在第一实施例中所起的作用相同，因此不再赘述。In the second embodiment shown in FIG. 2 , the flange of the bearing outer ring 50 guides the cage 20. By modifying the guide surface 201 of the cage 20 and other structural improvements, an oil inlet 40 is formed between the modified cage guide surface 201 and the ring guide surface 501. The function of the oil inlet 40 is the same as that in the first embodiment, so it will not be described in detail.
图3示出了具有修型结构的引导面的示意图。该引导面可以是套圈引导面301、501，也可以是保持架引导面201，亦或是在套圈和保持架都设置的引导面。优选地，将该引导面分为三个部分，即第一修型面S1，中间引导面S2和第二修型面S3，其中，中间引导面能够是直面(非修型面)，以用于与套圈的引导面进行接触。只对第一修型面S1和第二修型面S3进行修型设计。中间引导面S2的宽度L2占引导面总宽的至少40％，即0.4<(L2/Lc)<1。如图所示，第一修型面S1和第二修型面S3可以做成沿保 持架引导面中心线对称，以便于修型加工。此外，第一修型面S1和第二修型面S3也可以根据实际工况需求做成非对称的。FIG3 shows a schematic diagram of a guide surface with a shaping structure. The guide surface can be a ferrule guide surface 301, 501, or a retainer guide surface 201, or a guide surface provided on both the ferrule and the retainer. Preferably, the guide surface is divided into three parts, namely a first shaping surface S1, an intermediate guide surface S2, and a second shaping surface S3, wherein the intermediate guide surface can be a straight surface (non-shaping surface) for contacting the guide surface of the ferrule. Only the first shaping surface S1 and the second shaping surface S3 are subjected to shaping design. The width L2 of the intermediate guide surface S2 accounts for at least 40% of the total width of the guide surface, that is, 0.4<(L2/Lc)<1. As shown in the figure, the first shaping surface S1 and the second shaping surface S3 can be made along the retainer. The center line of the guide surface of the support frame is symmetrical to facilitate the shaping process. In addition, the first shaping surface S1 and the second shaping surface S3 can also be made asymmetrical according to actual working conditions.
如图3所示，第一修型面S1和第二修型面S3采用的是单段斜线段修型的方式。根据本发明进行的修型设计，第一修型面S1和第二修型面S3的修型方式可以是圆弧修型、对数修型、单段斜线段修型、多段斜线段修型或者其它曲率修型。此外，轴承内圈和/轴承外圈的套圈引导面也可以具有修型设计，在这种情况下，保持架引导面可以具有修型设计也可以不具有修型设计，只要在套圈引导面和保持架引导面之间形成进油口即可。当然实际设计过程中不局限于以上描述的修型方式。As shown in FIG3 , the first trimming surface S1 and the second trimming surface S3 adopt a single-segment oblique line segment trimming method. According to the trimming design performed in the present invention, the trimming methods of the first trimming surface S1 and the second trimming surface S3 can be arc trimming, logarithmic trimming, single-segment oblique line segment trimming, multi-segment oblique line segment trimming or other curvature trimming. In addition, the ring guide surface of the bearing inner ring and/or the bearing outer ring can also have a trimming design. In this case, the cage guide surface can have a trimming design or not, as long as an oil inlet is formed between the ring guide surface and the cage guide surface. Of course, the actual design process is not limited to the trimming methods described above.
虽然在上述说明中示例性地描述了可能的实施例，但是应当理解到，仍然通过所有已知的和此外技术人员容易想到的技术特征和实施方式的组合存在大量实施例的变化。此外还应该理解到，示例性的实施方式仅仅作为一个例子，这种实施例绝不以任何形式限制本发明的保护范围、应用和构造。例如，滚子轴承的类型和结构、以及修型的方式并不局限于上述实施例。通过前述说明更多地是向技术人员提供一种用于转化至少一个示例性实施方式的技术指导，其中，只要不脱离权利要求书的保护范围，便可以进行各种改变，尤其是关于所述部件的功能和结构方面的改变。 Although possible embodiments are described by way of example in the above description, it should be understood that there are still a large number of variations of embodiments through the combination of all known and other technical features and embodiments that are easily conceivable by the skilled person. It should also be understood that the exemplary embodiment is only an example and that such an embodiment in no way limits the scope of protection, application and construction of the present invention. For example, the type and structure of the roller bearing, as well as the way of modification are not limited to the above-described embodiments. The foregoing description is more to provide the skilled person with a technical guide for transforming at least one exemplary embodiment, wherein various changes can be made, especially changes in the function and structure of the components, as long as they do not depart from the scope of protection of the claims.
附图标记列表
10    滚子
20    保持架
201   保持架引导面
30    内圈
301   套圈引导面
40    进油口
50    外圈
501   套圈引导面
S1    第一修型面
L1    第一修型面宽度
S2    中间引导面
L2    中间引导面宽度
S3    第二修型面
L3    第二修型面宽度
Lc    引导面总宽度 Reference numerals list
10 Roller
20 Cage
201 Cage guide surface
30 Inner Circle
301 Ferrule guide surface
40 Oil inlet
50 outer ring
501 Ferrule guide surface
S1 First trimming surface
L1 Width of the first trimming surface
S2 Middle guide surface
L2 Middle guide surface width
S3 Second trimming surface
L3 Second trimming surface width
Lc Total width of guide surface

Claims (10)

  1. 一种滚子轴承，具有保持架(20)、轴承外圈(50)、轴承内圈(30)以及滚子(10)，其中，所述保持架(20)具有与所述轴承内圈(30)和/或所述轴承外圈接触的保持架引导面(201)，所述轴承内圈(30)和/或所述轴承外圈(50)具有与所述保持架引导面(201)相对的套圈引导面(301，501)，其特征在于，所述保持架引导面(201)和/或所述套圈引导面(301，501)具有修型设计，从而在所述保持架引导面(201)和所述套圈引导面(301，501)之间形成进油口(40)。A roller bearing comprises a retainer (20), a bearing outer ring (50), a bearing inner ring (30) and a roller (10), wherein the retainer (20) has a retainer guide surface (201) in contact with the bearing inner ring (30) and/or the bearing outer ring, and the bearing inner ring (30) and/or the bearing outer ring (50) have a ring guide surface (301, 501) opposite to the retainer guide surface (201), and is characterized in that the retainer guide surface (201) and/or the ring guide surface (301, 501) have a modified design, thereby forming an oil inlet (40) between the retainer guide surface (201) and the ring guide surface (301, 501).
  2. 根据权利要求1所述的滚子轴承，其特征在于，具有修型设计的引导面被分为第一修型面(S1)、第二修型面(S3)和中间引导面(S2)。The roller bearing according to claim 1 is characterized in that the guide surface with a modified design is divided into a first modified surface (S1), a second modified surface (S3) and an intermediate guide surface (S2).
  3. 根据权利要求2所述的滚子轴承，其特征在于，所述中间引导面(S2)是平坦的平面。The roller bearing according to claim 2, characterized in that the intermediate guide surface (S2) is a flat plane.
  4. 根据权利要求2所述的滚子轴承，其特征在于，所述中间引导面(S2)的宽度(L2)占引导面总宽度(Lc)的至少40％。The roller bearing according to claim 2, characterized in that the width (L2) of the intermediate guide surface (S2) accounts for at least 40% of the total width (Lc) of the guide surface.
  5. 根据权利要求2所述的滚子轴承，其特征在于，所述第一修型面(S1)和所述第二修型面(S3)沿所述引导面的中心线是对称的。The roller bearing according to claim 2, characterized in that the first modified surface (S1) and the second modified surface (S3) are symmetrical along the center line of the guide surface.
  6. 根据权利要求2所述的滚子轴承，其特征在于，所述第一修型面(S1)的和所述第二修型面(S3)的修型方式是圆弧修型、对数修型、单段斜线段修型、多段斜线段修型或者曲率修型。The roller bearing according to claim 2 is characterized in that the profiling methods of the first profiling surface (S1) and the second profiling surface (S3) are arc profiling, logarithmic profiling, single-segment oblique line profiling, multi-segment oblique line profiling or curvature profiling.
  7. 根据权利要求1至6中任一项所述的滚子轴承，其特征在于，所述进油口(40)是楔形的。The roller bearing according to any one of claims 1 to 6, characterized in that the oil inlet (40) is wedge-shaped.
  8. 根据权利要求1至6中任一项所述的滚子轴承，其特征在于，所述轴承外圈(50)和/或所述轴承内圈(30)具有挡边，所述保持架(20)与所述挡边相接触。The roller bearing according to any one of claims 1 to 6, characterized in that the bearing outer ring (50) and/or the bearing inner ring (30) has a rib, and the retaining frame (20) is in contact with the rib.
  9. 一种用于滚子轴承的保持架，具有与所述滚子轴承的轴承内圈(30)和/或轴承外圈接触的保持架引导面(201)，所述轴承内圈(30)和/或所述轴承外圈(50)具有所述保持架引导面(201)相对的套圈引导面(301，501)，其特征在于，所述保持架引导面(201)具有修型设计，从而在所 述保持架引导面(201)和所述套圈引导面(301，501)之间形成进油口(40)。A cage for a roller bearing, comprising a cage guide surface (201) in contact with a bearing inner ring (30) and/or a bearing outer ring of the roller bearing, wherein the bearing inner ring (30) and/or the bearing outer ring (50) comprises a ring guide surface (301, 501) opposite to the cage guide surface (201), characterized in that the cage guide surface (201) has a modified design so that the cage guide surface (201) is in contact with the inner ring (30) and/or the outer ring (50) of the roller bearing. An oil inlet (40) is formed between the retainer guide surface (201) and the ferrule guide surface (301, 501).
  10. 根据权利要求9所述的保持架，其特征在于，所述保持架(20)是由钢材制成的。 The retaining frame according to claim 9, characterized in that the retaining frame (20) is made of steel.
PCT/CN2023/130251 2022-12-16 2023-11-07 Roller bearing and cage WO2024125162A1 (en)

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Application Number Priority Date Filing Date Title
CN202211622330.5 2022-12-16
CN202211622330.5A CN118208497A (en) 2022-12-16 2022-12-16 Roller bearing and cage

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WO2024125162A1 true WO2024125162A1 (en) 2024-06-20

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0712132A (en) * 1993-06-28 1995-01-17 Nippon Seiko Kk Rolling bearing
DE102015219706A1 (en) * 2015-10-12 2017-04-13 Schaeffler Technologies AG & Co. KG slewing bearings
CN107250582A (en) * 2015-02-04 2017-10-13 日本精工株式会社 The manufacture method of retainer for rolling bearing and rolling bearing and retainer for rolling bearing
CN113503321A (en) * 2021-08-06 2021-10-15 中车大连机车研究所有限公司 Cylindrical roller bearing for urban rail transit gear box

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0712132A (en) * 1993-06-28 1995-01-17 Nippon Seiko Kk Rolling bearing
CN107250582A (en) * 2015-02-04 2017-10-13 日本精工株式会社 The manufacture method of retainer for rolling bearing and rolling bearing and retainer for rolling bearing
DE102015219706A1 (en) * 2015-10-12 2017-04-13 Schaeffler Technologies AG & Co. KG slewing bearings
CN113503321A (en) * 2021-08-06 2021-10-15 中车大连机车研究所有限公司 Cylindrical roller bearing for urban rail transit gear box

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