WO2024051065A1 - 一种轴承防跑圈结构、轴承及波形弹簧 - Google Patents

一种轴承防跑圈结构、轴承及波形弹簧 Download PDF

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Publication number
WO2024051065A1
WO2024051065A1 PCT/CN2023/072323 CN2023072323W WO2024051065A1 WO 2024051065 A1 WO2024051065 A1 WO 2024051065A1 CN 2023072323 W CN2023072323 W CN 2023072323W WO 2024051065 A1 WO2024051065 A1 WO 2024051065A1
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Prior art keywords
bearing
stop
block
pad
rotating shaft
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PCT/CN2023/072323
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English (en)
French (fr)
Inventor
井睿康
吴佐来
邹煜林
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无锡中车浩夫尔动力总成有限公司
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Publication of WO2024051065A1 publication Critical patent/WO2024051065A1/zh

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Classifications

    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
    • F16B1/02—Means for securing elements of mechanisms after operation
    • 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
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07—Fixing them on the shaft or housing with interposition of an element
    • F16C35/073—Fixing them on the shaft or housing with interposition of an element between shaft and inner race 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07—Fixing them on the shaft or housing with interposition of an element
    • F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race 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
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such

Definitions

  • the invention belongs to the field of bearings, and specifically relates to a bearing anti-running ring structure, a bearing and a wave spring.
  • the Chinese patent "CN114039445A - An anti-running motor bearing and bearing fixing structure” proposes a structure for the bearing to prevent rolling.
  • there are still problems such as inconvenient installation and the large area occupied by the anti-running structure. It is difficult to meet the needs of electric vehicle powertrains. meet the compactness requirements.
  • the technical problem to be solved by the present invention is to provide a bearing anti-running ring structure and wave spring with automatic alignment and installation effect.
  • the content of the present invention includes a bearing seat, a bearing and a rotating shaft connected in sequence, and also includes a stop pad.
  • the stop pad is provided with stop blocks or stop grooves on both sides of the bearing axis.
  • the stop pad is One side is arranged in close contact with the side of the bearing.
  • the matching side of the bearing and the stop pad is provided with a fitting groove I or a fitting block I that is fitted with the stop block or the stop groove.
  • the hole shoulder of the bearing seat or the shaft of the rotating shaft The shoulder is provided with a matching groove II or a matching block II that matches another stop block or stop groove.
  • the stop pad includes a pad body, and the stop block is arranged on the pad body along the axis direction.
  • the pad body is a wave spring.
  • the wave spring is a wave reed arranged in an annular shape, and two stop blocks are provided at both ends of the reed.
  • the stop block is formed by bending the spring end.
  • bent portion of the reed has an arc transition.
  • the pad body has an arc-shaped structure, and stop blocks are provided at both ends of the pad body.
  • the stop pad is provided between the hole shoulder of the bearing seat and the bearing outer ring, and the fitting groove II or fitting
  • the block II is arranged on the hole shoulder of the bearing seat, the stop pad is arranged between the shoulder of the rotating shaft and the inner ring of the bearing, and the fitting groove II or fitting block II is arranged on the shoulder of the rotating shaft.
  • the present invention also provides a bearing, the inner ring and/or the outer ring side of the bearing is provided with a matching groove I or a matching block I.
  • the present invention also provides a wave spring.
  • the wave spring is a wave reed arranged in an annular shape.
  • the two ends of the wave reed are respectively provided with stopper edges toward both sides.
  • the beneficial effect of the present invention is that by arranging the stop pad and using the stop blocks provided on both sides of the stop pad along the axial direction, when the matching groove II is arranged on the bearing seat, the stop pad is combined with the outer ring of the bearing.
  • the matching groove I and the matching groove II on the bearing seat ensure that the stop pad, the bearing outer ring and the bearing seat remain relatively fixed, achieving circumferential locking of the bearing and the bearing seat.
  • the matching groove II is set on the rotating shaft, the combination
  • the matching groove I of the inner ring of the bearing and the matching groove II on the rotating shaft ensure that the stop pad, the inner ring of the bearing and the rotating shaft remain relatively fixed, achieving circumferential locking of the bearing and the rotating shaft, and effectively preventing the bearing from running around.
  • the stop block When installing, the stop block does not need to be aligned with the fitting groove I and the fitting groove II, because as long as the bearing appears to run, the fitting groove I on the bearing outer ring will rotate to the stop block position and engage with it, and then the When a running circle occurs, the stop pad will be driven to rotate, and the other stop block will move to the matching groove II and engage with it, locking the outer ring of the bearing again, and the problem of running around will be solved immediately.
  • the structure of the present invention is simple and reliable, and the installation is convenient and quick. It can directly eliminate the use of steel inserts and O-rings, improve the manufacturability and production efficiency of the bearing seat, and at the same time reduce the manufacturing cost, structure and installation method.
  • the anti-running ring Compared with the traditional use of steel inserts and O-rings, the anti-running ring has a better effect, and the manufacturability and production efficiency of the bearing seat are improved. In addition, while improving the reliability and service life of the product, it can reduce the number of parts, improve the manufacturability of the parts where the bearing seat is located and the efficiency of mass production, and reduce the design and manufacturing costs of related products. In addition, compared with the conventional bearing installation without an anti-running ring structure, the occupied space is only occupied by the thickness range of the pad body of the stop pad.
  • Figure 1 is an explosion schematic diagram of the present invention.
  • Figure 2 is a schematic structural diagram of the bearing seat in the present invention.
  • Figure 3 is a schematic structural diagram of the first embodiment of the stop pad in the present invention.
  • Figure 4 is a front view of the second embodiment of the stop pad in the present invention.
  • Figure 5 is a schematic structural diagram of a second embodiment of the stop pad in the present invention.
  • Figure 6 is a schematic structural diagram of a third embodiment of the stop pad in the present invention.
  • Figure 7 is a schematic structural diagram of a fourth embodiment of the stop pad in the present invention.
  • Figure 8 is a schematic diagram of the installation structure of the stop pad and the bearing seat in the present invention.
  • Figure 9 is a schematic diagram of the bearing structure in the present invention.
  • Figure 10 is a schematic structural diagram of the present invention.
  • FIG. 11 is a partial cross-sectional view of FIG. 10 .
  • Figure 12 is an explosion schematic diagram of Embodiment 2 of the present invention.
  • 1-bearing seat 2-bearing; 21-outer ring; 22-inner ring; 3-shaft; 4-stop pad; 41-stop block; 42-pad body; 5-fitting groove I; 6-fitting slot II.
  • the present invention includes a bearing seat 1, a bearing 2 and a rotating shaft 3 connected in sequence, and also includes a stop pad 4.
  • the stop pad 4 is provided with stop blocks along both sides of the bearing axis. 41.
  • One side of the stop pad 4 is arranged in close contact with the side of the bearing 2.
  • the matching side of the bearing 2 and the stop pad 4 is provided with a matching groove I5 that fits the stop block 41.
  • the bearing seat 1 The hole shoulder is provided with a matching groove II 6 that matches another stop block 41 .
  • the stop pad 4 is arranged between the hole shoulder of the bearing seat 1 and the outer ring of the bearing 2, the fitting groove I5 is arranged on the outer ring 21 of the bearing, and the fitting groove II6 is arranged on the hole shoulder of the bearing seat 1.
  • a stop pad 4 is provided between the two, and the stop pads 41 provided on both sides of the stop pad 4 along the axis direction are used to combine the matching groove I5 of the outer ring of the bearing 2 and the hole shoulder of the bearing seat 1.
  • the matching groove II6 on the bearing ensures that the stop pad 4, the bearing outer ring 21 and the bearing seat 1 remain relatively fixed, achieving circumferential locking of the bearing 2 and the bearing seat 1, effectively preventing the bearing from running around.
  • This structure is in progress During installation, the stop block 41 does not need to be aligned with the mating groove I5 and the mating groove II6, because as long as the bearing 2 is running, the mating groove I5 on the bearing outer ring 21 will rotate to the position of the stop block 41 and engage with it. If circling occurs again later, the stop pad 4 will be driven to rotate, and the other stop block 41 will move to the matching groove II6 and engage with it, locking the bearing outer ring again, and the circling problem will be solved immediately to prevent the bearing from circling.
  • the problems caused by wear, vibration, noise, product life, etc., on the whole, the structure of the present invention is simple and reliable, and the installation is convenient and quick.
  • the structure and installation method of the anti-run-out ring has a better effect. It can improve the reliability, NVH performance and service life of the product while reducing the number of parts and product manufacturing costs. , improve the manufacturing efficiency of the product. Specifically, the manufacturability and production efficiency of the bearing seat are improved, and the manufacturing cost is also reduced. While improving the reliability and service life of the product, the number of parts can be reduced, and the parts where the bearing seat is located can be improved. The manufacturability and mass production efficiency reduce the design and manufacturing costs of related products.
  • the stop block 41, the fitting groove I and the fitting groove II 6 of the present invention are arranged along the axial direction.
  • the space occupied is only an extra stop pad.
  • the thickness range of the pad body 42 of the block 4 is occupied.
  • the arrangement of the pad body 42 is also a relatively conventional arrangement method. Therefore, the anti-running ring structure of the present invention occupies very little space. Especially in the field of automobile motor bearings, the requirements for compactness are getting higher and higher, and the present invention can better meet the requirements.
  • the stop pad 4 includes a pad body 42.
  • the stop block 41 is arranged on the pad body 42 along the axis direction.
  • the structure of the pad body 42 is preferably a wave spring, which not only plays the role and effect of a wave washer, Further consolidate the anti-running lap effect.
  • the wave spring is a wave reed arranged in an annular shape, and two stop blocks 41 are provided at both ends of the reed, thereby reducing the complexity of the structure, simplifying the production cost, and at the same time not
  • the stop block 41 is formed by bending the end of the reed, and the bent part of the reed has an arc transition, which further reduces the production cost and facilitates the stop block 41 to engage with the mating groove.
  • I5 and matching groove II6 reduce the difficulty of installation and improve the success rate during the automatic fitting process.
  • the stop pad 4 has no positive and negative distinctions. After rotating 180°, the structure is consistent, further reducing the installation time.
  • a matching groove I5 can also be provided on both sides of the outer ring 21 of the bearing, so that the bearing 2 can be installed on both sides without distinguishing the front and back sides of the bearing.
  • the cross-sections of the stop block 41 and the cushion block body 42 can be either a flat sheet as shown in Figure 3 or a circular cross-section as shown in Figures 4-5.
  • the cushion block body 42 can also be a With the corrugated structure, the pad body 42 can be pre-tightened during installation to provide axial pre-tightening force to the bearing, improve rotation performance and reduce bearing vibration and noise.
  • the pad body 42 has an arc-shaped structure.
  • the pad body 42 is only a part of the ring-shaped structure.
  • the arc-shaped structure fits the outer ring or the inner ring of the bearing 2, and the stop block 41 is arranged on At both ends of the pad body 42, this structure requires less material, which is more conducive to cost reduction.
  • a plurality of stop blocks 41 are provided on both sides of the stop block 41.
  • the number, position, and shape of the stop blocks 41 can be one or more according to design requirements.
  • This embodiment is basically the same as Embodiment 1, except that:
  • the fitting groove II6 is not set on the hole shoulder of the bearing seat 1, but is set on the shoulder of the rotating shaft 3.
  • the fitting groove I5 is set on the bearing inner ring 22.
  • the stop The pad 4 is disposed between the bearing inner ring 22 and the shoulder of the rotating shaft 3. The rest of the structure is basically similar or only has corresponding changes, and will not be described again.
  • Embodiment 1 is basically the same as Embodiment 1 and Embodiment 2, except that:
  • the stop pad 4 is provided with a stop groove
  • the bearing 2 is provided with a fitting block I
  • the bearing seat 1 or the rotating shaft 3 is provided with a fitting block II, which is different from the first and second embodiments.
  • the positions of the groove and the fastener can be interchanged, which can also meet the anti-running effect, installation convenience and minimal space occupation, and the production cost will be increased.
  • the present invention also provides a bearing, the inner ring and/or the outer ring side of the bearing is provided with a matching groove I5 or a matching block I, which is used to cooperate with the stop pad 4 to form an anti-running ring structure.
  • the present invention also provides a wave spring.
  • the wave spring is a wave reed arranged in an annular shape.
  • the two ends of the wave reed are respectively provided with stopper edges toward both sides.
  • the anti-bearing circling structure proposed by the present invention completely solves a series of problems caused by circling when the bearing rotates, such as wear, vibration and noise, product life, etc., and at the same time can simplify the design and manufacturing of the current bearing seat hole. , greatly improves the production efficiency of parts and reduces manufacturing costs. While improving the operating performance and reliability of the product, it also greatly extends the service life of the product.
  • the technical achievements of the present invention can be widely used in automobiles and auto parts, aerospace, industrial automation, offshore engineering equipment, military and special equipment, new energy and energy-saving technology, medical equipment and other fields.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)

Abstract

本发明属于轴承领域，具体是涉及到一种轴承防跑圈结构结构、轴承及波形弹簧，包括依次连接的轴承座、轴承和转轴，还包括止动垫块，止动垫块沿轴承轴线两侧均设置有止动块或止动槽，止动垫块一侧与轴承一侧贴合设置，轴承与止动垫块配合侧设置有与止动块或止动槽嵌合的配合槽I或配合块I，轴承座的孔肩或转轴的轴肩上设置有与另一止动块或止动槽配合的配合槽Ⅱ或配合块Ⅱ，本发明实现了轴承与轴承座或轴承与转轴的周向锁止，有效防止轴承跑圈的发生，另外在安装过程中具有自动对齐安装的功能，在提高产品的可靠性、NVH性能和使用寿命同时能够减少零件数量，降低产品制造成本，提高产品的制造效率。

Description

一种轴承防跑圈结构、轴承及波形弹簧 技术领域
本发明属于轴承领域，具体是涉及到一种轴承防跑圈结构结构、轴承及波形弹簧。
背景技术
旋转轴承在实际应用过程中，由于设计因素、载荷因素和环境因素的影响，轴承外圈与轴承座孔之间、轴承内圈与转轴之间会产生相对滑动的情况，这将导致轴承、轴承座孔、轴承预紧弹簧或者转轴出现磨损的现象，并产生噪声、振动异常等问题，跑圈严重时将直接导致轴承烧损，发生严重的安全事故，造成重大的经济损失。因此，预防轴承跑圈是各个轴承应用行业亟需解决的技术难题。
另外传统的铝合金壳体轴承座通常采用钢质镶套用于增强轴承座硬度及强度来削弱跑圈影响；也有设计者在轴承座孔内设计有O型密封圈来缓解轴承跑圈的影响。但这类方案都无法彻底解决轴承跑圈问题，且这种设计方案在产品大批量生产时，生产效率低，制造成本高。
中国专利“CN114039445A-一种防跑圈电机轴承及轴承固定结构”提出了一种轴承防止跑圈的结构，但是还是存在安装不便，防跑圈结构占用面积大等问题，难以满足电动汽车动力总成的紧凑性要求。
发明内容
本发明要解决的技术问题是提供一种具有自动对齐安装效果的轴承防跑圈结构及波形弹簧。
本发明的内容包括依次连接的轴承座、轴承和转轴，还包括止动垫块，所述止动垫块沿轴承轴线两侧均设置有止动块或止动槽，所述止动垫块一侧与轴承一侧贴合设置，轴承与止动垫块配合侧设置有与止动块或止动槽嵌合的配合槽I或配合块I，所述轴承座的孔肩或转轴的轴肩上设置有与另一止动块或止动槽配合的配合槽Ⅱ或配合块Ⅱ。
更进一步地，所述止动垫块包括垫块本体，止动块沿轴线方向设置在垫块本体上。
更进一步地，所述垫块本体为波形弹簧。
更进一步地，所述波形弹簧为一根呈环形设置的波形簧片，两个止动块设置在簧片的两端。
更进一步地，所述止动块有簧片端部折弯形成。
更进一步地，所述簧片的折弯部分弧形过渡。
更进一步地，所述垫块本体为弧形结构，止动块设置在垫块本体两端。
更进一步地，所述止动垫块设置在轴承座的孔肩与轴承外圈之间，所述配合槽Ⅱ或配合 块Ⅱ设置在轴承座的孔肩上，所述止动垫块设置在转轴的轴肩与轴承内圈之间，所述配合槽Ⅱ或配合块Ⅱ设置在转轴的轴肩上。
本发明还提供一种轴承，所述轴承的内圈和/或外圈侧面设置有配合槽I或配合块I。
本发明还提供一种波形弹簧，所述波形弹簧为一根呈环形设置的波形簧片，波形簧片的两个端部分别朝向两侧设置有止动翘边。
本发明的有益效果是，本发明通过设置止动垫块，并利用止动垫块上沿轴线方向两侧设置的止动块，在配合槽Ⅱ设置在轴承座上时，结合轴承外圈的配合槽I以及轴承座上的配合槽Ⅱ，确保止动垫块、轴承外圈和轴承座三者保持相对固定，实现轴承与轴承座的周向锁止，在配合槽Ⅱ设置在转轴上时，结合轴承内圈的配合槽I以及转轴上的配合槽Ⅱ，确保止动垫块、轴承内圈和转轴三者保持相对固定，实现轴承与转轴的周向锁止，有效防止轴承跑圈的发生，该结构在进行安装时，止动块无需与配合槽I和配合槽Ⅱ对齐，因为只要轴承出现跑圈现象，则轴承外圈上配合槽I的会旋转至止动块位置并与其卡合，之后再出现跑圈则会带动止动垫块进行旋转，另一止动块会移动至配合槽Ⅱ与其卡合，再次锁死轴承外圈，跑圈的问题随即解决。整体上，本发明的结构简单可靠，安装方便快捷，可以直接取消钢质镶套和O型密封圈的使用，提升轴承座的可制造性和生产效率，同时降低了制造成本，结构和安装方式相对于传统的钢质镶套和O型密封圈的使用，防跑圈的效果更好，轴承座的可制造性和生产效率均有提高。另外，在提高产品的可靠性和使用寿命同时能够减少零件数量，提升轴承座所在零件的可制造性以及大批量生产效率，降低相关产品的设计、制造成本。另外，对于空间的占用相对于常规不设置防跑圈结构的轴承安装而言，仅仅多出了止动垫块的垫块本体厚度范围的占用。
附图说明
图1为本发明的爆炸示意图。
图2为本发明中轴承座的结构示意图。
图3为本发明中止动垫块的第一种实施例的结构示意图。
图4为本发明中止动垫块的第二种实施例的主视图。
图5为本发明中止动垫块的第二种实施例的结构示意图。
图6为本发明中止动垫块的第三种实施例的结构示意图。
图7为本发明中止动垫块的第四种实施例的结构示意图。
图8为本发明中止动垫块与轴承座的安装结构示意图。
图9为本发明中轴承结构示意图。
图10为本发明的结构示意图。
图11为图10的部分剖视图。
图12为本发明实施例二的爆炸示意图。
在图中，1-轴承座；2-轴承；21-外圈；22-内圈；3-转轴；4-止动垫块；41-止动块；42-垫块本体；5-配合槽I；6-配合槽Ⅱ。
具体实施方式
实施例一
如图1-11所示，本发明包括依次连接的轴承座1、轴承2和转轴3，还包括止动垫块4，所述止动垫块4沿轴承轴线两侧均设置有止动块41，所述止动垫块4一侧与轴承2一侧贴合设置，轴承2与止动垫块4配合侧设置有与止动块41嵌合的配合槽I5，所述轴承座1的孔肩上设置有与另一止动块41配合的配合槽Ⅱ6。
本实施例中，用于避免轴承的外圈21跑圈，即基于轴承内圈22与转轴3是过盈配合的，轴承外圈21与轴承座1的孔是间隙或过渡配合的基础上，所述止动垫块4设置在轴承座1的孔肩与轴承2外圈之间，配合槽I5设置在轴承的外圈21上，配合槽Ⅱ6则设置在轴承座1的孔肩上，本实施例通过在两者之间设置止动垫块4，并利用止动垫块4上沿轴线方向两侧设置的止动块41，结合轴承2外圈的配合槽I5以及轴承座1孔肩上的配合槽Ⅱ6，确保止动垫块4、轴承外圈21和轴承座1三者保持相对固定，实现轴承2与轴承座1的周向锁止，有效防止轴承跑圈的发生，该结构在进行安装时，止动块41无需与配合槽I5和配合槽Ⅱ6对齐，因为只要轴承2出现跑圈现象，则轴承外圈21上配合槽I5的会旋转至止动块41位置并与其卡合，之后再出现跑圈则会带动止动垫块4进行旋转，另一止动块41会移动至配合槽Ⅱ6与其卡合，再次锁死轴承外圈，跑圈的问题随即解决，避免轴承跑圈所带来的磨损、振动噪声、产品寿命等问题，整体上，本发明的结构简单可靠，安装方便快捷。
结构和安装方式相对于传统的钢质镶套和O型密封圈的使用，防跑圈的效果更好，在提高产品的可靠性、NVH性能和使用寿命同时能够减少零件数量，降低产品制造成本，提高产品的制造效率，具体而言，轴承座的可制造性和生产效率均有提高，制造成本也有所降低，在提高产品的可靠性和使用寿命同时能够减少零件数量，提升轴承座所在零件的可制造性以及大批量生产效率，降低相关产品的设计、制造成本。
另外，本发明的止动块41、配合槽I和配合槽Ⅱ6是沿轴线方向设置的，对于空间的占用相对于常规不设置防跑圈结构的轴承安装而言，仅仅多出了止动垫块4的垫块本体42厚度范围的占用，另外，在轴承安装过程中，垫块本体42的设置也是一种较为常规的设置方式，因此，本发明的防跑圈结构对于空间的占用微乎其微，尤其是汽车电机轴承领域紧凑度的要求越来越高，本发明可更好的满足要求。而例如“CN114039445A-一种防跑圈电机轴承及轴承固定结构”中，其定位凹槽和凸台是沿轴承的径向方向设置的，无论是空间的占用还是安装便利性均与本申请具有很大差距。
所述止动垫块4包括垫块本体42，止动块41沿轴线方向设置在垫块本体42上，其中垫块本体42的结构优选采用波形弹簧，在起到波形垫圈作用以及效果的同时进一步巩固防跑圈效果。
如图3所示，所述波形弹簧为一根呈环形设置的波形簧片，两个止动块41设置在簧片的两端，以此降低结构的复杂性，简化生产成本，同时不会影响到防跑圈的效果，另外，所述止动块41有簧片端部折弯形成，簧片的折弯部分弧形过渡，进一步降低生产成本，同时便于止动块41卡合至配合槽I5和配合槽Ⅱ6内，减低安装难度，提高自动嵌合过程中的成功率，另外，该种设置方式，止动垫块4没有正反之分，旋转180°之后结构一致，进一步降低安装的工序，同时，在本实施例中，也可以在轴承的外圈21两侧各设置一个配合槽I5，以此是的轴承2两侧均能实现安装，无需区分轴承正反面。
其中止动块41和垫块本体42的横截面既可以图3所示的扁平的片状，也可以是如图4-图5所述的圆形截面，另外，垫块本体42也可以是波浪形结构，此时，可以在安装时预紧垫块本体42，给轴承轴向的预紧力，提升旋转性能，降低轴承振动噪声。
如图7所示，所述垫块本体42为弧形结构，垫块本体42仅为圈状结构的一部分，弧形结构与轴承2的外圈或内圈贴合，止动块41设置在垫块本体42两端，该结构其材料更少，更利于降低成本。
所述止动块41两侧均设置有多个止动块41，具体的，止动块41的数量、位置、形状，可以根据设计需要为1个或者多个。
实施例二
本实施例与实施例一基本相同，不同之处在于：
如图12所示，所述配合槽Ⅱ6不是设置在轴承座1的孔肩上，而是设置在转轴3的轴肩上，配合槽I5则设置在轴承内圈22上，对应的，止动垫块4设置在轴承内圈22与转轴3的轴肩之间，其余的结构基本相似或者仅做对应性变化，再次不在赘述。
本实施例中，用于避免轴承的内圈22跑圈，即基于轴承外圈21与轴承座1是过盈配合的，轴承内圈22与转轴3是间隙或过渡配合的基础上，本实施例的效果与实施例一基本相似。
实施例三
本实施例与实施例一和实施例二基本相同，不同之处在于：
所述止动垫块4上是设置的止动槽，而轴承2上设置的是配合块I，轴承座1或转轴3上设置的是配合快Ⅱ，即与实施例一和实施例二而言，槽和快的位置相互调换，同样可以满足防跑圈效果、安装便利性和极少的空间占用，生产成本会有所提高。
本发明还提供一种轴承，所述轴承的内圈和/或外圈侧面设置有配合槽I5或配合块I，用于配合止动垫块4形成防跑圈结构。
如图3所示，本发明还提供一种波形弹簧，所述波形弹簧为一根呈环形设置的波形簧片，波形簧片的两个端部分别朝向两侧设置有止动翘边。
本发明提出的防轴承跑圈结构，彻底解决轴承在旋转时因为跑圈带来的一系列问题，如磨损、振动噪声、产品寿命等问题，同时能够对当前轴承座孔的设计、制造进行简化，大大提升了零件生产效率、并降低制造成本，在提升产品的运行性能及可靠性同时，大大延伸了产品的使用寿命。本发明技术成果能够被广泛应用于汽车及汽车零部件、航空航天、工业自动化、海工装备、军工及特种装备、新能源及节能技术、医疗器械等领域。
所属领域的普通技术人员应当理解：以上任何实施例的讨论仅为示例性的，并非旨在暗示本申请的保护范围限于这些例子；在本申请的思路下，以上实施例或者不同实施例中的技术特征之间也可以进行组合，步骤可以以任意顺序实现，并存在如上所述的本申请中一个或多个实施例的不同方面的许多其它变化，为了简明它们没有在细节中提供。
本申请中一个或多个实施例旨在涵盖落入本申请的宽泛范围之内的所有这样的替换、修改和变型。因此，凡在本申请中一个或多个实施例的精神和原则之内，所做的任何省略、修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种轴承防跑圈结构，包括依次连接的轴承座(1)、轴承(2)和转轴(3)，其特征是，还包括止动垫块(4)，所述止动垫块(4)沿轴承轴线两侧均设置有止动块(41)或止动槽，所述止动垫块(4)一侧与轴承(2)一侧贴合设置，轴承(2)与止动垫块(4)配合侧设置有与止动块(41)或止动槽嵌合的配合槽I(5)或配合块I，所述轴承座(1)的孔肩或转轴(3)的轴肩上设置有与另一止动块(41)或止动槽配合的配合槽Ⅱ(6)或配合块Ⅱ。
  2. 如权利要求1所述的轴承防跑圈结构，其特征是，所述止动垫块(4)包括垫块本体(42)，所述垫块本体(42)为圈状，止动块(41)沿轴线方向设置在垫块本体(42)上。
  3. 如权利要求2所述的轴承防跑圈结构，其特征是，所述垫块本体(42)为波形弹簧。
  4. 如权利要求3所述的轴承防跑圈结构，其特征是，所述波形弹簧为一根呈环形设置的波形簧片，两个止动块(41)设置在簧片的两端。
  5. 如权利要求4所述的轴承防跑圈结构，其特征是，所述止动块(41)有簧片端部折弯形成。
  6. 如权利要求5所述的轴承防跑圈结构，其特征是，所述簧片的折弯部分弧形过渡。
  7. 如权利要求2所述的轴承防跑圈结构，其特征是，所述垫块本体(42)为弧形结构，止动块(41)设置在垫块本体(42)两端。
  8. 如权利要求1-7任一项所述的轴承防跑圈结构，其特征是，所述止动垫块(4)设置在轴承座(1)的孔肩与轴承外圈(21)之间，所述配合槽Ⅱ(6)或配合块Ⅱ设置在轴承座(1)的孔肩上，或者所述止动垫块(4)设置在转轴(3)的轴肩与轴承内圈(22)之间，所述配合槽Ⅱ(6)或配合块Ⅱ设置在转轴(3)的轴肩上。
  9. 一种轴承，其特征是，所述轴承的内圈和/或外圈侧面设置有配合槽I(5)或配合块I。
  10. 一种波形弹簧，其特征是，所述波形弹簧为一根呈环形设置的波形簧片，波形簧片的两个端部分别朝向两侧设置有止动翘边。
PCT/CN2023/072323 2022-09-07 2023-01-16 一种轴承防跑圈结构、轴承及波形弹簧 WO2024051065A1 (zh)

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CN113187874A (zh) * 2021-04-20 2021-07-30 天津华建天恒传动有限责任公司 一种轴承外圈双向锁紧方法
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CN101183810A (zh) * 2007-08-31 2008-05-21 上海日用-友捷汽车电气有限公司 超薄形电机后端盖
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