WO2017118346A1 - 单向离合器 - Google Patents

单向离合器 Download PDF

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Publication number
WO2017118346A1
WO2017118346A1 PCT/CN2016/113529 CN2016113529W WO2017118346A1 WO 2017118346 A1 WO2017118346 A1 WO 2017118346A1 CN 2016113529 W CN2016113529 W CN 2016113529W WO 2017118346 A1 WO2017118346 A1 WO 2017118346A1
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WO
WIPO (PCT)
Prior art keywords
washer
way clutch
curved cavity
transmission member
curved
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PCT/CN2016/113529
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English (en)
French (fr)
Inventor
范永周
张炳兴
Original Assignee
上海法雷奥汽车电器系统有限公司
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Application filed by 上海法雷奥汽车电器系统有限公司 filed Critical 上海法雷奥汽车电器系统有限公司
Publication of WO2017118346A1 publication Critical patent/WO2017118346A1/zh

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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
    • F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical

Definitions

  • the present disclosure relates to a sealing structure for a one-way device, for example, to a one-way clutch.
  • the one-way clutch separates or combines the drive train at any time. In the process of use, it not only has to withstand the test of high and low temperature, but also needs a better closed type, which can prevent failure of oil leakage during use.
  • the grease in the curved cavity of the one-way clutch plays a key role in the service life of the one-way clutch.
  • the one-way clutch in the related art includes a start gear 01, a transmission member 02, a washer 03, a seal ring 04, and a cover 05.
  • a seal ring 04 By adding a seal ring 04 to the outer ring of the transmission member 02, grease can be effectively prevented from being driven from the transmission member. 02 outer ring pulled out. Since the inner ring of the transmission member 02 is not sealed, the grease will still be pulled out from the gap between the washer 03 and the start gear 01, the transmission member 02, and the gap between the cover 05 and the start gear 01, thereby causing one-way.
  • the clutch fails prematurely due to lack of lubrication between the start gear 01, the roller (not shown) and the curved cavity (not shown) due to internal grease drying. Further, due to the existence of the slit, external dust impurities and iron scrap generated by friction enter into a curved cavity (not shown) in which a roller (not shown) and a spring (not shown) are located, and Affects the mating relationship between the various components and affects the service life of the one-way clutch.
  • the present disclosure provides a one-way clutch with a good sealing effect.
  • the embodiment of the present disclosure provides a one-way clutch, comprising: a moving gear, a transmission member sleeved at one end of the starting gear, and a cover covering one side of the transmission member, disposed at the a washer between a shoulder of the starter gear and the casing, and a resilient washer disposed between the shoulder and the washer;
  • the washer is configured to limit axial movement of the start gear, the transmission member has a curved cavity having grease in the curved cavity, and the elastic washer is used to prevent lubricating grease from the curved cavity Flowing out.
  • the curved cavity of the transmission component is divided into a plurality of curved cavity chambers, and each curved cavity is provided with a roller, a spring and a push rod, and each roller and the corresponding curved cavity are rolled.
  • each spring sleeve is placed on the boss of each push rod.
  • the elastic washer has a first plane and a second plane, and an angle between the first plane and the second plane is 163 degrees to 167 degrees.
  • the elastic washer is made of 65Mn.
  • the one-way clutch further includes: a sealing ring disposed between the casing and the gasket, the sealing ring is configured to prevent lubricating grease from flowing out of the curved cavity .
  • the elastic gasket effectively prevents the grease in the curved cavity of the one-way clutch from flying out, and avoids the occurrence of the grease leaking prematurely during the use of the one-way clutch.
  • the failure problem thereby improving the service life of the product
  • the elastic gasket effectively prevents external dust impurities from entering the curved cavity, thereby improving the service life of the product
  • the elastic gasket has no influence on the mechanism of the product, and is convenient for a wide range of application.
  • FIG. 1 is a partial structural schematic view of a one-way clutch in the related art
  • FIG. 2 is a schematic structural view of a one-way clutch provided by an embodiment of the present disclosure
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
  • Figure 4 is a partial enlarged view of B in Figure 2;
  • Figure 5 is a cross-sectional view of a resilient gasket provided by an embodiment of the present disclosure.
  • the embodiment of the present disclosure provides a one-way clutch, which can prevent the problem of the outflow of the curved cavity grease and the entry of external impurities, thereby prolonging the service life of the one-way clutch.
  • the one-way clutch provided by the embodiment of the present disclosure includes a starting gear 11 , a casing 12 , a transmission member 13 , a roller 14 , a spring 15 , a push rod 16 , a curved cavity 17 , a washer 18 , a sealing ring 19 ,
  • the elastic gasket 20; the curved cavity 17 is divided into a plurality of curved chambers, each of which is provided with a roller 14, a spring 15 and a push rod 16, each roller 14 and a corresponding curved cavity
  • the chambers are in rolling contact, and each spring 15 is sleeved on the boss of each push rod 16.
  • the curved cavity 17 is filled with lubricating grease, and each push rod 16 pushes each roller 14 so that each roller 14 has a corresponding
  • the curved surface chamber is in rolling contact; the rear end of the starting gear 11 extends into the transmission member 13, and the casing 12 fixes the starting gear 11 and the transmission member 13 together, and a sealing ring 19 and a gasket are disposed between the casing 12 and the transmission member 13. 18.
  • the spring washer 20, the starter gear 11 is tightly enclosed by a plurality of rollers 14 on the transmission member 13, the starter gear 11 having a circumferential shoulder 21 which is axially blocked by a washer 18, ie a washer 18.
  • the seal ring 19 is located between the washer 18 and the casing 12 for preventing the grease in the curved cavity 17 from flowing out
  • the elastic washer 20 is located between the transmission member 13 and the washer 18. Also, it is used to prevent the grease in the curved cavity 17 from flowing out.
  • the elastic washer 20 is a thin elastic washer. The sealing ring 19, the washer 18, the elastic washer 20, and the starter gear 11 are all fixed together with the transmission member 13 by means of the casing 12.
  • the one-way clutch provided by the embodiment of the present disclosure adds a spring washer 20 between the washer and the transmission member.
  • the elastic washer 20 has two planes 22, 23, and the angle between the two planes 22, 23 is 163 degrees. 167 degrees, the option is 165 degrees.
  • the elastic gasket 20 is tightly pressed by the casing 12, and the elastic gasket 20 is deformed by a certain degree.
  • the angle between the two planes 22, 23 of the elastic gasket 20 becomes large, and the elastic washer 20 is opposite to the shaft.
  • the shoulder 21 and the washer 18 exert a force to ensure that the elastic washer 20 and the start gear 11 are kept in close contact at all times, thereby more effectively preventing dust impurities from entering the curved cavity 17, and also preventing the grease in the curved cavity 17 from flowing out.
  • the material of the elastic washer 20 can be selected as 65Mn, which is not rubber. Since the rubber is deformed by the pressure, part of the rubber material enters the curved cavity 17 from the gap, affecting the normal movement of the roller, and in addition, the rubber may be oxidized and chipped after a long period of use, in this case also There is a rubber impurity entering the space where the roller is located, which affects the service life of the one-way clutch. Therefore, the material of the elastic washer 20 provided by the embodiment of the present disclosure can be selected as 65Mn, 65Mn is a spring steel, which has high strength and good toughness. advantage.
  • intersection between the two faces 22, 23 of the elastomeric gasket 20 can also have a circular arc transition.
  • the one-way clutch provided by the embodiment of the present disclosure has the following advantages: First, the elastic washer effectively prevents the grease in the curved cavity of the one-way clutch from flying out, and avoids the grease of the one-way clutch during use. The failure problem caused by premature leakage improves the service life of the product; secondly, the elastic gasket effectively prevents external dust impurities from entering the curved cavity, thereby improving the service life of the product; third, the elastic gasket is for the product.
  • the organization has basically no impact and is easy to use widely.
  • the qualifiers similar to "first" and “second” appearing in this document do not refer to the limitation of chronological order, quantity, or importance, but merely to be a technique in the technical solution. Features are distinguished from another technical feature. Similarly, the qualifiers similar to “one” appearing herein are not intended to limit the quantity, but rather to describe the technical features that have not appeared in the foregoing. Similarly, modifiers such as "about” and “approximately” that appear before a numeral in the ⁇ RTIgt; ⁇ / RTI> ⁇ RTIgt; ⁇ / RTI> ⁇ RTIgt; Similarly, unless a noun is modified by a specific quantitative quantity, it should be considered as including the singular and the plural. In this technical solution, the singular number of the technical features may be included, and a plurality of the techniques may be included. feature.
  • the embodiment of the present disclosure provides a one-way clutch.
  • the one-way clutch provided by the embodiment of the present disclosure has the following advantages: First, the elastic washer effectively prevents the grease in the curved cavity of the one-way clutch from flying out. It avoids the failure of the one-way clutch due to premature oil leakage during use, thereby improving the service life of the product; second, the elastic gasket effectively prevents external dust impurities from entering the curved cavity, thereby improving the product. The service life; third, the elastic gasket has basically no influence on the mechanism of the product, and is convenient for wide application.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • General Details Of Gearings (AREA)
  • Sealing Devices (AREA)
  • Lubricants (AREA)

Abstract

一种单向离合器，包括：一起动齿轮（11），套设于起动齿轮（11）的一端的一传动件（13），包罩于传动件（13）的一侧的一罩壳（12），设置在起动齿轮（11）的一轴肩（21）与罩壳（12）之间的一垫圈（18），以及设置在轴肩（21）与垫圈（18）之间的一弹性垫圈（20）；其中，垫圈（18）用于限制起动齿轮（11）的轴向运动，传动件（13）具有一曲面型腔（17），曲面型腔（17）中具有润滑油脂，弹性垫圈（20）用于防止润滑油脂从曲面型腔（17）中流出。

Description

单向离合器 技术领域
本公开涉及一种单向器的密封结构，例如涉及一种单向离合器。
背景技术
单向离合器作为机械传动中的常用部件，可将传动系统随时分离或结合。在使用过程中，它不但要经受高低温的考验，还需要有较好的封闭型，能防止在使用过程中不因油脂的渗漏而失效。单向离合器曲面型腔内的油脂对单向离合器的使用寿命起着关键的作用。
图1是相关技术中单向离合器的局部结构示意图。如图所示，相关技术中单向离合器包括起动齿轮01、传动件02、垫圈03、密封圈04、罩壳05，通过在传动件02外圈添加密封圈04，可以有效防止油脂从传动件02外圈甩出。而由于传动件02内圈没有进行密封设计，油脂仍会从垫圈03与起动齿轮01、传动件02之间的缝隙以及罩壳05与起动齿轮01之间的缝隙中甩出，从而造成单向离合器因内部油脂干涸，起动齿轮01、滚柱(图中未示出)和曲面型腔(图中未示出)之间缺少润滑而过早失效。此外，由于缝隙的存在，外部灰尘杂质和摩擦产生的铁屑进入滚柱(图中未示出)和弹簧(图中未示出)所在的曲面型腔(图中未示出)中，而影响各零部件之间的配合关系，影响单向离合器的使用寿命。
发明内容
为了克服相关技术中单向离合器的油脂飞出和杂质进入的技术问题，本公开提供了一种密封效果良好的单向离合器。
本公开实施例提供了一种单向离合器，包括：一起动齿轮，套设于所述起动齿轮的一端的一传动件，包罩于所述传动件的一侧的一罩壳，设置在所述起动齿轮的一轴肩与所述罩壳之间的一垫圈，以及设置在所述轴肩与所述垫圈之间的一弹性垫圈；其中，
所述垫圈用于限制所述起动齿轮的轴向运动，所述传动件具有一曲面型腔，所述曲面型腔中具有润滑油脂，所述弹性垫圈用于防止润滑油脂从所述曲面型腔中流出。
可选的，传动件的曲面型腔分为多个曲面型腔室，每个曲面型腔室中设置有一滚柱、一弹簧和一推杆，每个滚柱与相应的曲面型腔室滚动接触，每个弹簧套设于每个推杆的凸台上。
可选的，所述弹性垫圈具有一第一平面和一第二平面，所述第一平面和所述第二平面之间的夹角为163度到167度。
可选的，所述第一平面和所述第二平面之间具有一圆弧过渡。
可选的，所述弹性垫圈由65Mn制成。
可选的，所述单向离合器还包括：一密封圈，所述密封圈设置在所述罩壳与所述垫圈之间，所述密封圈用于防止润滑油脂从所述曲面型腔中流出。
本公开实施例所提供的技术方案具有以下优点：第一、弹性垫圈有效防止单向离合器曲面型腔中的油脂飞出，避免了单向离合器在使用过程中因油脂过早渗漏而出现的失效问题，从而提高了产品的使用寿命；第二、弹性垫圈有效防止外部灰尘杂质进入曲面型腔中，从而提高了产品的使用寿命；第三、弹性垫圈对产品的机构基本没有影响，便于广泛应用。
附图说明
图1是相关技术中单向离合器的局部结构示意图；
图2是本公开实施例所提供的单向离合器的结构示意图；
图3是沿图2中A-A线的剖视图；
图4是图2中B处的局部放大图；
图5是本公开实施例所提供的弹性垫圈的剖视图。
具体实施方式
下面结合附图详细说明本公开的可选实施例。然而，应当将本公开理解成并不局限于以下描述的这种实施方式，并且本公开的技术理念可以与其他公知技术或功能与那些公知技术相同的其他技术组合实施。在不冲突的情况下，实施例和实施例中的特征可以相互任意组合。在以下可选实施例的说明中，为了清楚展示本公开的结构及工作方式，将借助诸多方向性词语进行描述，但是应当将“前”、“后”、“左”、“右”、“外”、“内”、“向外”、“向内”、“轴向”、“径向”等词语理解为方便用语，而不应当理解为限定性词语。
本公开实施例提供一种单向离合器，可以防止曲面型腔油脂流出和外界杂质进入的问题，从而延长单向离合器的使用寿命。
下面结合附图2-5详细说明本公开的可选实施例。
图2-4是本公开实施例所提供的单向离合器的结构示意图，图5是本公开实施例所提供的弹性垫圈20的剖视图。如图所示，本公开实施例提供的单向离合器包括起动齿轮11、罩壳12、传动件13、滚柱14、弹簧15、推杆16、曲面型腔17、垫圈18、密封圈19、弹性垫圈20；曲面型腔17分为多个曲面型腔室，每个曲面型腔室中设置有一滚柱14、一弹簧15和一推杆16，每个滚柱14与相应的曲面型腔室滚动接触，每个弹簧15套设于每个推杆16的凸台上。曲面型腔17中充满润滑油脂，每个推杆16推动每个滚柱14，使每个滚柱14与相应的 曲面型腔室滚动接触；起动齿轮11后端伸入传动件13中，罩壳12将起动齿轮11和传动件13固定在一起，罩壳12与传动件13之间设有密封圈19、垫圈18、弹性垫圈20，起动齿轮11被传动件13上的多个滚柱14紧密围住，起动齿轮11具有环绕的轴肩21，该轴肩21在轴向上由垫圈18挡住，即垫圈18用于固定起动齿轮11的轴向位移，同时，密封圈19位于垫圈18与罩壳12之间，用于防止曲面型腔17中的油脂流出，弹性垫圈20则位于传动件13与垫圈18之间，亦用于防止曲面型腔17中的油脂流出。可选的，弹性垫圈20为薄型的弹性垫圈。所述密封圈19、垫圈18、弹性垫圈20、起动齿轮11均借助于罩壳12与所述传动件13固定在一起。
本公开实施例所提供的单向离合器在垫圈与传动件之间增加了一个弹性垫圈20，该弹性垫圈20具有两个平面22、23，两平面22、23之间的夹角为163度到167度，可选方案为165度。包罩壳12时，通过罩壳12将弹性垫圈20紧紧压住，弹性垫圈20产生一定的弹性形变，弹性垫圈20的两平面22、23之间的夹角变大，弹性垫圈20对轴肩21、垫圈18产生力的作用，以保证弹性垫圈20与起动齿轮11一直保持紧密接触，从而更加有效地防止灰尘杂质进入曲面型腔17中，也可防止曲面型腔17中的油脂流出。该弹性垫圈20的材质可选为65Mn，不是橡胶。由于橡胶受压力产生变形，部分橡胶材料会从空隙进入曲面型腔17中，影响滚柱的正常运动，此外，橡胶经过长时间的使用会出现氧化以及碎裂的情况，此种情况下，也会有橡胶杂质进入滚柱所在空间，影响单向离合器的使用寿命，因此，本公开实施例所提供的弹性垫圈20的材质可选65Mn，65Mn为一种弹簧钢，具有强度高、韧性好的优点。
本领域的普通技术人员应当知悉，为了获得更好的密封效果，弹性垫圈20两平面22、23之间的相交处亦可以具有一圆弧过渡。
与相关技术相比较，本公开实施例所提供的单向离合器具有以下优点：第一、弹性垫圈有效防止单向离合器曲面型腔中的油脂飞出，避免了单向离合器在使用过程中因油脂过早渗漏而出现的失效问题，从而提高了产品的使用寿命；第二、弹性垫圈有效防止外部灰尘杂质进入曲面型腔中，从而提高了产品的使用寿命；第三、弹性垫圈对产品的机构基本没有影响，便于广泛应用。
如无特别说明，本文中出现的类似于“第一”、“第二”的限定语并非是指对时间顺序、数量、或者重要性的限定，而仅仅是为了将本技术方案中的一个技术特征与另一个技术特征相区分。同样地，本文中出现的类似于“一”的限定语并非是指对数量的限定，而是描述在前文中未曾出现的技术特征。同样地，本文中在数词前出现的类似于“大约”、“近似地”的修饰语通常包含本数，并且具体的含义应当结合上下文意理解。同样地，除非是有特定的数量量词修饰的名词，在本文中应当视作即包含单数形式又包含复数形式，在该技术方案中即可以包括单数个该技术特征，也可以包括复数个该技术特征。
本说明书中所述的只是本公开的可选实施例，以上实施例仅用以说明本公开的技术方案而非对本公开的限制。
工业实用性
本公开实施例提供了一种单向离合器，与相关技术相比较，本公开实施例所提供的单向离合器具有以下优点：第一、弹性垫圈有效防止单向离合器曲面型腔中的油脂飞出，避免了单向离合器在使用过程中因油脂过早渗漏而出现的失效问题，从而提高了产品的使用寿命；第二、弹性垫圈有效防止外部灰尘杂质进入曲面型腔中，从而提高了产品的使用寿命；第三、弹性垫圈对产品的机构基本没有影响，便于广泛应用。

Claims (6)

  1. 一种单向离合器，包括：
    一起动齿轮(11)，
    套设于所述起动齿轮(11)的一端的一传动件(13)，
    包罩于所述传动件(13)的一侧的一罩壳(12)，
    设置在所述起动齿轮(11)的一轴肩(21)与所述罩壳(12)之间的一垫圈(18)，以及设置在所述轴肩与所述垫圈(18)之间的一弹性垫圈(20)；其中，
    所述垫圈(18)用于限制所述起动齿轮(11)的轴向运动，所述传动件(13)具有一曲面型腔(17)，所述曲面型腔(17)中具有润滑油脂，所述弹性垫圈(20)用于防止润滑油脂从所述曲面型腔(17)中流出。
  2. 如权利要求1所述的单向离合器，其中，传动件(13)的曲面型腔(17)分为多个曲面型腔室，每个曲面型腔室中设置有一滚柱(14)、一弹簧(15)和一推杆(16)，每个滚柱(14)与相应的曲面型腔室滚动接触，每个弹簧(15)套设于每个推杆16的凸台上。
  3. 如权利要求1或2所述的单向离合器，其中，所述弹性垫圈(20)具有一第一平面(22)和一第二平面(23)，所述第一平面(22)和所述第二平面(23)之间的夹角为163度到167度。
  4. 如权利要求3所述的单向离合器，其中，所述第一平面(22)和所述第二平面(23)之间具有一圆弧过渡。
  5. 如权利要求1或2所述的单向离合器，其中，所述弹性垫圈(20)由65Mn制成。
  6. 如权利要求1或2所述的单向离合器，还包括：一密封圈(19)，所述密封圈(19)设置在罩壳(12)与所述垫圈(18)之间，所述密封圈(19)用 于防止润滑油脂从所述曲面型腔(17)中流出。
PCT/CN2016/113529 2016-01-04 2016-12-30 单向离合器 WO2017118346A1 (zh)

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