WO2025015504A1 - 减振装置 - Google Patents

减振装置 Download PDF

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Publication number
WO2025015504A1
WO2025015504A1 PCT/CN2023/107764 CN2023107764W WO2025015504A1 WO 2025015504 A1 WO2025015504 A1 WO 2025015504A1 CN 2023107764 W CN2023107764 W CN 2023107764W WO 2025015504 A1 WO2025015504 A1 WO 2025015504A1
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WO
WIPO (PCT)
Prior art keywords
vibration damping
damping device
output hub
main body
external device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/107764
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English (en)
French (fr)
Inventor
洪杰
陈达
朱铭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to PCT/CN2023/107764 priority Critical patent/WO2025015504A1/zh
Priority to CN202380096689.XA priority patent/CN120981675A/zh
Publication of WO2025015504A1 publication Critical patent/WO2025015504A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings

Definitions

  • the present invention relates to the field of vehicle technology, and in particular to a vibration reduction device capable of reducing the risk of grease intrusion.
  • a vibration damping device In the transmission system of a motor vehicle, a vibration damping device is usually required to be arranged between the engine and the transmission to absorb and buffer torque vibration. There are many friction pairs in the vibration damping device to provide damping, and the contact surfaces of these friction pairs need to be kept clean to ensure friction performance. However, contaminants from the outside of the vibration damping device may invade the inside of the vibration damping device through the input end or the output end. In particular, in order to facilitate assembly, lubricating grease is applied to the input shaft of the transmission; at the same time, the transmission located at the rear end of the vibration damping device is connected to the output hub of the vibration damping device through the input shaft, and there is lubricating grease in the transmission.
  • the lubricating grease in the transmission may leak toward the vibration damping device through the input shaft.
  • these lubricating greases may invade the inside of the vibration damping device and spread in the vibration damping device under the action of centrifugal force.
  • the lubricating grease invading the inside of the vibration damping device may contaminate the friction surface of the friction pair, reduce the friction coefficient, and thus cause damping failure and torque transmission failure.
  • Patent document KR10-2004-0023067 discloses a vibration damping device that stores lubricating grease intruding along the input shaft of a transmission by forming a groove on the radial inner side of the output hub.
  • the size and volume of such a groove are limited, and not only can it not block the splashing grease, but it may also be filled with grease after a long period of operation, resulting in grease loss.
  • such a groove makes the structure of the output hub complicated and difficult to process.
  • Patent document KR10-1997-0027891 discloses a vibration damping device, which shields the lubricating grease intruding from the input shaft of the transmission by adding a funnel-shaped shielding member outside the end of the output hub.
  • this shielding member is also difficult to block the grease splashing radially outside the input shaft, and it requires a larger axial arrangement space, which increases the axial size of the vibration damping device.
  • the technical problem to be solved by the present invention is to provide a vibration reduction device capable of reducing the risk of grease intrusion.
  • the vibration damping device includes an output hub and one or more rotating parts, and the output hub is used to transmit torque between the one or more rotating parts in the vibration damping device and an external device.
  • the vibration damping device also includes an oil baffle, which surrounds the radial outer side of the output hub and is axially located on the side of the one or more rotating parts that is used to face the external device, so that when the vibration damping device is connected to the external device, the oil baffle is axially located between the one or more rotating parts and the external device.
  • the oil baffle thus separates the rotating parts inside the vibration damping device from the external device, and pollutants from the outside of the vibration damping device, especially from the external device, especially lubricating grease, are blocked by the oil baffle, and are therefore not easy to invade the interior of the vibration damping device.
  • the oil blocking member may include a main body portion, which may be fixed on the output hub and extend radially outward from the output hub.
  • the main body portion at least partially separates the space between the vibration damping device and the external device, and can not only block the grease intruding along the output hub, but also block the splashing grease.
  • the main body can extend in a plane perpendicular to the axial direction.
  • the main body is thus formed into a flat plate-like structure perpendicular to the axial direction, which is easy to process.
  • the main body can also be formed into a truncated cone around the output hub and have a radius that gradually increases in the axial direction away from one or more rotating parts.
  • the truncated cone-shaped main body can not only block the splashing grease, but also guide the grease to concentrate radially inward, thereby further reducing the risk of grease intrusion.
  • the oil retaining member may further include a retaining edge portion, which may be formed as an annular structure extending around the outer periphery of the main body portion and bent relative to the main body portion in a direction away from the one or more rotating components.
  • the extension length of the retaining edge portion may be designed according to the space between the vibration reduction device and the external device, which may further block the splashing grease.
  • the flange portion may extend axially from the outer periphery of the main body portion.
  • the flange portion is thus formed into a cylindrical structure, which is easy to produce.
  • the rib portion may also be formed in a truncated cone shape around the main body portion and have a radius that gradually increases in the axial direction away from the one or more rotating components.
  • the truncated cone-shaped rib portion can not only block the splashing grease, but also guide the grease to concentrate radially inward, thereby further reducing the risk of grease intrusion.
  • the main body can be fixed to the radially outer side of the axial end of the output hub facing the external device, which facilitates the installation of the oil retainer on the output hub.
  • the output hub may include a step portion, which may be formed on the radially outer side of the axial end of the output hub facing the external device, and the oil retainer may be fixed to the step portion by a press-fit process. This makes the oil retainer easy to install.
  • the oil retainer may also be fixed to the output hub by, for example, welding.
  • the external device may be a transmission
  • the output hub is used to connect with the input shaft of the transmission. Grease leaking from the transmission and grease applied when the input shaft and the output hub are installed together can be blocked by the oil blocking member.
  • FIG1 shows a schematic diagram of a vibration damping device according to an exemplary embodiment of the present invention
  • FIG2 is a schematic diagram showing an installation state of a vibration damping device according to an exemplary embodiment of the present invention.
  • FIG. 3 is a schematic diagram showing an installation state of an oil deflector of a vibration damping device according to an exemplary embodiment of the present invention.
  • a vibration reduction device for a motor vehicle is provided.
  • Such a vibration reduction device is usually installed between an engine and a transmission in a transmission system of a motor vehicle.
  • the engine and the transmission transmit torque and absorb and damp torque vibrations.
  • FIG. 1 shows an exemplary embodiment of a vibration damping device according to the present invention.
  • the vibration damping device 10 includes an output hub 13 and one or more rotating parts.
  • the rotating parts of the vibration damping device 10 and the output hub 13 are coaxially arranged around the same rotation axis, which is substantially coincident with the central axis of the vibration damping device 10.
  • the rotating parts and the output hub 13 can rotate relative to each other around the common rotation axis and can sequentially transmit torque.
  • the vibration damping device 10 can include, for example, a plurality of rotating parts 11a, 11b, 11c, wherein the rotating part 11a is, for example, a flange, and the rotating part 11b is, for example, a side plate assembly, and the damping spring 12 abuts between the rotating part 11a and the rotating part 11b in the rotation direction to transmit torque and buffer torque vibration by elastic deformation.
  • the flange and the side plate assembly can abut each other in the axial direction to provide rotation damping.
  • One of the rotating part 11a and the rotating part 11b can be used as the input end of the vibration damping device 10 (for example, for connecting the crankshaft of the engine, not shown), and the other is connected to the rotating part 11c in a torsion-proof manner.
  • the rotating component 11c can be, for example, a torque limiter coaxially arranged radially inside the flange and side plate assembly, which can transmit limited torque through friction.
  • the output hub 13 is coaxially arranged radially inside the rotating component 11c and is torsionally connected to the rotating component 11c.
  • the output hub 13 is connected to an external device in a torsion-proof manner as the output end of the vibration damping device, and the external device here is, for example, a transmission 20.
  • the input shaft 21 of the transmission 20 can be connected to the output hub 13 in a torsion-proof manner on the radial inner side of the output hub 13.
  • These rotating components 11a, 11b, and 11c together constitute the transmission components inside the vibration damping device 10, and the output hub 13 can transmit torque between these rotating components and the external device.
  • the vibration damping device 10 further includes an oil retainer 14.
  • the oil retainer 14 is a component that surrounds the radially outer side of the output hub 13, and the oil retainer 14 is axially located on the side of the above-mentioned rotating components of the vibration damping device 10 that faces the external device (e.g., the transmission 20 in FIG2 ). Therefore, when the vibration damping device 10 is connected to the external device, the oil retainer 14 is axially located between these rotating components and the external device.
  • the oil retainer 14 can thereby prevent lubricating grease from the external device or from the connection between the input shaft 21 of the external device and the output hub 13 from invading the interior of the vibration damping device 10, and in particular prevent the grease from contaminating the friction pair inside the vibration damping device 10.
  • the oil retainer 14 includes a main body portion 14 a.
  • the main body portion 14 a is fixed to the radially outer side of the output hub 13 and extends radially outward from the output hub 13.
  • it can be fixed to the output hub 13 by interference fit, welding, etc., so as to form a sealed fit, so that grease cannot penetrate into the interior of the vibration damping device from between the oil retaining member 14 and the output hub 13 .
  • the main body 14a may extend in a plane substantially perpendicular to the axial direction, thereby forming a substantially disc-shaped structure.
  • the radius size of the disc-shaped main body 14a may be designed according to the internal space of the vibration damping device 10 and the structure of the rotating parts.
  • the main body 14a separates the components inside the vibration damping device 10 from the transmission 20, and the grease intruding through the input shaft 21 of the transmission 20 may be blocked by the main body 14a.
  • the main body 14a may also be formed in a substantially truncated cone shape around the output hub 13, the radius of which gradually increases in the axial direction away from the rotating component (i.e., toward the external device).
  • the internal space of the truncated cone is open toward the external device (transmission 20), which can better block the grease splashed out as the input shaft 21 rotates, and can guide the grease to converge toward the radial center along the main body 14a.
  • the truncated cone-shaped main body 14a also forms a space for storing the grease, which can effectively prevent the accumulated grease from overflowing.
  • the oil retaining member 14 may further include a flange portion 14b.
  • the flange portion 14b is formed as an annular structure extending around the outer periphery of the main body 14a and is bent relative to the main body 14a in a direction away from the rotating parts inside the vibration damping device 10.
  • the flange portion 14b may be a component attached to the main body 14a or a portion formed integrally with the main body 14a.
  • the extension length of the flange portion 14b may be designed according to the space between the vibration damping device 10 and the external device.
  • the flange portion 14b can further block the splashing grease, and in particular can effectively prevent the grease from splashing radially outward of the oil retaining member 14 under the action of centrifugal force.
  • the flange portion 14b may extend approximately in the axial direction from the outer periphery of the main body portion 14a, thereby forming a substantially cylindrical structure.
  • the flange portion 14b may also extend obliquely about the axial direction from the outer periphery of the main body portion 14a, so that the flange portion 14b is formed into a truncated cone around the main body portion 14a, and the radius of the truncated cone gradually increases in the axial direction away from the rotating component inside the vibration damping device 10.
  • FIG3 shows a schematic diagram of the installation state of the oil retaining member 14 of the vibration damping device 10.
  • the main body 14a can preferably be fixed to the radial outer side of the axial end of the output hub 13 facing the external device.
  • the fixing method of the main body 14a and the output hub 13 can be, for example, interference fit. Fitting, welding, etc.
  • the output hub 13 may preferably include a step portion 13a, which is formed on the radially outer side of the axial end of the output hub 13 facing the external device.
  • the step portion 13a faces the external device.
  • the oil retaining member 14 can be fixed at the step portion 13a by a press-fitting process.
  • the step portion 13a thus forms an axial positioning for the oil retaining member 14.
  • the vibration damping device can prevent external grease from invading the interior of the vibration damping device through the oil blocking member, thereby protecting the friction surface of the friction pair inside the vibration damping device and preventing the damping and torque limiting functions provided by the friction force from failing.
  • the oil blocking member has a simple structure, is easy to install, and has low production and assembly costs. At the same time, the shape and size of the oil blocking member can be flexibly designed according to actual needs, so it has high adaptability.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Abstract

一种减振装置（10），包括输出毂（13）以及一个或多个转动部件，输出毂（13）用于在减振装置（10）内的一个或多个转动部件与外部装置之间传递扭矩。该减振装置（10）还包括挡油件（14），挡油件（14）环绕在输出毂（13）的径向外侧并且在轴向上位于该一个或多个转动部件的用于朝向外部装置的一侧，使得当减振装置（10）与外部装置连接时，挡油件（14）在轴向上位于该一个或多个转动部件与外部装置之间。该减振装置（10）能够降低油脂侵入的风险。

Description

减振装置 技术领域
本发明涉及车辆技术领域。具体地，本发明涉及一种能够降低油脂侵入风险的减振装置。
背景技术
在机动车辆的传动系中，通常需要在发动机与变速器之间设置减振装置来吸收和缓冲扭矩振动。在减振装置中存在许多摩擦副来提供阻尼，这些摩擦副的接触表面需要保持清洁以确保摩擦性能。然而，来自减振装置外部的污染物可能通过输入端或输出端侵入减振装置内部。尤其是，为了便于装配，在变速器的输入轴上会涂抹润滑油脂；同时位于减振装置后端的变速器通过输入轴与减振装置的输出毂连接，变速箱中存在润滑油脂，在变速器的密封失效时，变速器内的润滑油脂可能通过输入轴朝向减振装置泄漏。当减振装置和变速器运转时，这些润滑油脂可能侵入减振装置内部，并且在离心力作用下在减振装置内扩散。侵入减振装置内部的润滑油脂可能污染摩擦副的摩擦表面，减小摩擦系数，从而造成阻尼失效和传扭失效。
专利文献KR10-2004-0023067公开了一种减振装置，其通过在输出毂的径向内侧形成凹槽来存储沿着变速器的输入轴侵入的润滑油脂。然而，这种凹槽的尺寸和容积有限，不仅无法阻挡飞溅的油脂，而且可能在长时间运行后充满油脂，从而导致油脂益处。此外，这种凹槽导致输出毂的结构复杂，难以加工。
专利文献KR10-1997-0027891公开了一种减振装置，其通过在输出毂的端部外侧增加漏斗状的遮挡件来遮挡变速器的输入轴侵入的润滑油脂。然而，这种遮挡件同样难以阻挡在输入轴径向外侧飞溅的油脂，并且其需要较大的轴向布置空间，增加了减振装置的轴向尺寸。
发明内容
因此，本发明需要解决的技术问题是，提供一种能够降低油脂侵入风险的减振装置。
上述技术问题通过根据本发明的一种减振装置而得到解决。该减振装置包括输出毂以及一个或多个转动部件，输出毂用于在减振装置内的该一个或多个转动部件与外部装置之间传递扭矩。其中，该减振装置还包括挡油件，挡油件环绕在输出毂的径向外侧并且在轴向上位于该一个或多个转动部件的用于朝向外部装置的一侧，使得当减振装置与外部装置连接时，挡油件在轴向上位于该一个或多个转动部件与外部装置之间。挡油件由此将减振装置内部的转动部件与外部装置分隔开，来自减振装置外部、特别是来自外部装置的污染物、特别是润滑油脂受到挡油件阻挡，因此不易于侵入减振装置内部。
根据本发明的一个优选实施例，挡油件可以包括主体部，主体部可以固定在输出毂上并且从输出毂朝向径向外侧延伸。主体部至少部分地分隔减振装置与外部装置之间的空间，不仅可以阻挡沿着输出毂侵入的油脂，还可以阻挡飞溅的油脂。
根据本发明的另一优选实施例，主体部可以在垂直于轴向的平面中延伸。主体部由此形成为垂直于轴向的平板状结构，这种结构易于加工。替代地，主体部也可以形成为围绕输出毂的截圆锥形，并且具有在远离一个或多个转动部件的轴向方向上逐渐增大的半径。截圆锥形的主体部不仅可以阻挡飞溅的油脂，而且可以引导油脂向着径向内侧集中，从而进一步降低油脂侵入的风险。
根据本发明的另一优选实施例，挡油件还可以包括挡边部，挡边部可以形成为围绕主体部的外周缘延伸的环形结构并且相对于主体部朝向远离该一个或多个转动部件的方向弯折。挡边部的延伸长度可以根据减振装置与外部装置之间的空间来设计，其可以进一步阻挡飞溅的油脂。
根据本发明的另一优选实施例，挡边部可以从主体部的外周缘开始沿轴向延伸。挡边部由此形成为圆筒状结构，这种结构易于生产。替代地， 挡边部也可以形成为围绕主体部的截圆锥形，并且具有在远离该一个或多个转动部件的轴向方向上逐渐增大的半径。截圆锥形的挡边部不仅可以阻挡飞溅的油脂，而且可以引导油脂向着径向内侧集中，从而进一步降低油脂侵入的风险。
根据本发明的另一优选实施例，主体部可以固定在输出毂的用于朝向外部装置的轴向端部的径向外侧。这便于将挡油件安装到输出毂上。
根据本发明的另一优选实施例，输出毂可以包括台阶部，台阶部可以形成在输出毂的用于朝向外部装置的轴向端部的径向外侧，挡油件可以通过压合工艺固定在台阶部处。这使得挡油件易于安装。挡油件也可以通过例如焊接等方式固定到输出毂上。
根据本发明的另一优选实施例，外部装置可以是变速器，输出毂用于与变速器的输入轴连接。变速器内部泄漏的油脂以及将输入轴与输出毂安装在一起时涂抹的油脂都可以通过挡油件来阻挡。
附图说明
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代表功能相同的元件。其中：
图1示出根据本发明的示例性实施例的减振装置的示意图；
图2示出根据本发明的示例性实施例的减振装置的安装状态示意图；和
图3示出根据本发明的示例性实施例的减振装置的挡油件的安装状态示意图。
具体实施方式
以下将结合附图描述根据本发明的减振装置的具体实施方式。下面的详细描述和附图用于示例性地说明本发明的原理，本发明不限于所描述的优选实施例，本发明的保护范围由权利要求书限定。
根据本发明的实施例，提供了一种用于机动车辆的减振装置。这种减振装置通常在机动车辆的传动系中安装在发动机与变速器之间，其可以在 发动机与变速器之间传递扭矩并且吸收和缓冲扭矩振动。
图1示出了根据本发明的减振装置的一个示例性实施例。如图1所示，减振装置10包括输出毂13以及一个或多个转动部件。减振装置10的这些转动部件以及输出毂13围绕相同的转动轴线同轴地布置，该转动轴线基本与减振装置10的中心轴线重合。这些转动部件和输出毂13能够围绕共同的转动轴线相对转动并且能够依次传递扭矩。在本实施例中，减振装置10例如可以包括若干转动部件11a、11b、11c，其中转动部件11a例如为法兰，而转动部件11b例如为侧板组件，减振弹簧12沿转动方向抵接在转动部件11a与转动部件11b之间，以便传递扭矩并且通过弹性变形来缓冲扭矩振动。法兰和侧板组件可以沿轴向相互抵接以提供转动阻尼。转动部件11a和转动部件11b中的一者可以作为减振装置10的输入端(例如用于连接发动机的曲轴，未示出)，而另一者与转动部件11c抗扭连接。转动部件11c例如可以为同轴地布置在法兰和侧板组件的径向内侧的扭矩限制器，其可以通过摩擦力来传递有限的扭矩。输出毂13同轴地布置在转动部件11c的径向内侧，并且与转动部件11c抗扭连接。
如图2所示，输出毂13作为减振装置的输出端与外部装置抗扭连接，这里的外部装置例如为变速器20。变速器20的输入轴21可以在输出毂13的径向内侧与输出毂13抗扭连接。这些转动部件11a、11b、11c共同构成减振装置10内部的传动部件，输出毂13能够在这些转动部件与外部装置之间传递扭矩。
如图1所示，减振装置10还包括挡油件14。挡油件14是环绕在输出毂13的径向外侧的部件，并且挡油件14在轴向上位于减振装置10的上述转动部件的朝向外部装置(例如图2中的变速器20)的一侧。因此，当减振装置10与外部装置连接时，挡油件14在轴向上位于这些转动部件与外部装置之间。挡油件14由此可以阻挡来自外部装置或者来自外部装置的输入轴21与输出毂13的连接处的润滑油脂侵入减振装置10的内部，特别是防止油脂污染减振装置10内部的摩擦副。
如图1和图2所示，挡油件14包括主体部14a。主体部14a固定在输出毂13的径向外侧上并且从输出毂13开始朝向径向外侧延伸。主体部14a 例如可以通过过盈配合、焊接等方式与输出毂13固定在一起，从而形成密封配合，使得油脂无法从挡油件14与输出毂13之间侵入减振装置内部。
优选地，如图1和图2所示，主体部14a可以在基本垂直于轴向的平面中延伸，从而形成大致圆盘状的结构。圆盘状的主体部14a的半径尺寸可以根据减振装置10的内部空间以及转动部件的结构等来设计。主体部14a将减振装置10内部的部件与变速器20分隔开，通过变速器20的输入轴21侵入的油脂可以由主体部14a阻挡。
替代地，主体部14a也可以形成为围绕输出毂13的大致截圆锥形，该截圆锥形的半径在远离转动部件的轴向方向上(即朝向外部装置)逐渐增大。截圆锥形的内部空间朝向外部装置(变速器20)开放，能够更好地阻挡随着输入轴21转动而飞溅出来的油脂，并且能够引导这些油脂朝向沿着主体部14a朝向径向中心汇聚。截圆锥形的主体部14a也形成了用于存储这些油脂的空间，可以有效地防止积聚的油脂溢出。
优选地，如图1和图2所示，不论主体部14a的形状为圆盘状还是截圆锥形，挡油件14还可以另外包括挡边部14b。挡边部14b形成为围绕主体部14a的外周缘延伸的环形结构并且相对于主体部14a朝向远离减振装置10内部的转动部件的方向弯折。挡边部14b可以是附接在主体部14a上的部件或与主体部14a一体形成的部分。挡边部14b的延伸长度可以根据减振装置10与外部装置之间的空间来设计。挡边部14b可以进一步阻挡飞溅的油脂，特别是可以有效地防止油脂在离心力的作用下向挡油件14的径向外侧飞溅。
优选地，如图1和图2所示，挡边部14b可以从主体部14a的外周缘开始大致沿轴向延伸，从而形成大致圆筒状的结构。替代地，挡边部14b也可以从主体部14a的外周缘开始关于轴向倾斜延伸，使得挡边部14b形成为围绕主体部14a的截圆锥形，该截圆锥形的半径在远离减振装置10内部的转动部件的轴向方向上逐渐增大。
图3示出了减振装置10的挡油件14的安装状态示意图。如图3所示，为了便于安装，主体部14a优选地可以固定在输出毂13的朝向外部装置的轴向端部的径向外侧。主体部14a与输出毂13的固定方式例如可以是过盈 配合、焊接等。例如，输出毂13优选地可以包括台阶部13a，台阶部13a形成在输出毂13的朝向外部装置的轴向端部的径向外侧。当减振装置10与外部装置安装在一起时，台阶部13a面向外部装置。挡油件14可以通过压合工艺固定在台阶部13a处。台阶部13a由此形成对挡油件14的轴向定位。
根据本发明的减振装置可以通过挡油件来阻挡外部的油脂侵入减振装置内部，从而保护减振装置内部的摩擦副摩擦表面，防止由摩擦力提供的阻尼和限扭功能失效。挡油件结构简单，安装方便，生产和组装成本低廉。同时挡油件的形状和尺寸可以根据实际需要灵活设计，因此具有较高的适应性。
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。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。
附图标记表
10   减振装置
11a  转动部件
11b  转动部件
11c  转动部件
12   减振弹簧
13   输出毂
13a  台阶部
14   挡油件
14a  主体部
14b  挡边部
20   变速器
21   输入轴

Claims (10)

  1. 一种减振装置(10)，包括输出毂(13)以及一个或多个转动部件，所述输出毂(13)用于在所述减振装置(10)内的所述一个或多个转动部件与外部装置之间传递扭矩，
    其特征在于，
    所述减振装置(10)还包括挡油件(14)，所述挡油件(14)环绕在所述输出毂(13)的径向外侧并且在轴向上位于所述一个或多个转动部件的用于朝向所述外部装置的一侧，使得当所述减振装置(10)与所述外部装置连接时，所述挡油件(14)在轴向上位于所述一个或多个转动部件与所述外部装置之间。
  2. 根据权利要求1所述的减振装置(10)，其特征在于，所述挡油件(14)包括主体部(14a)，所述主体部(14a)固定在所述输出毂(13)上并且从所述输出毂(13)朝向径向外侧延伸。
  3. 根据权利要求2所述的减振装置(10)，其特征在于，所述主体部(14a)在垂直于轴向的平面中延伸。
  4. 根据权利要求2所述的减振装置(10)，其特征在于，所述主体部(14a)形成为围绕所述输出毂(13)的截圆锥形，并且具有在远离所述一个或多个转动部件的轴向方向上逐渐增大的半径。
  5. 根据权利要求2所述的减振装置(10)，其特征在于，所述挡油件(14)还包括挡边部(14b)，所述挡边部(14b)形成为围绕所述主体部(14a)的外周缘延伸的环形结构并且相对于所述主体部(14a)朝向远离所述一个或多个转动部件的方向弯折。
  6. 根据权利要求5所述的减振装置(10)，其特征在于，所述挡边部(14b)从所述主体部(14a)的外周缘开始沿轴向延伸。
  7. 根据权利要求5所述的减振装置(10)，其特征在于，所述挡边部(14b)形成为围绕所述主体部(14a)的截圆锥形，并且具有在远离所述一个或多个转动部件的轴向方向上逐渐增大的半径。
  8. 根据权利要求2所述的减振装置(10)，其特征在于，所述主体部 (14a)固定在所述输出毂(13)的用于朝向所述外部装置的轴向端部的径向外侧。
  9. 根据权利要求8所述的减振装置(10)，其特征在于，所述输出毂(13)包括台阶部(13a)，所述台阶部(13a)形成在所述输出毂(13)的用于朝向所述外部装置的轴向端部的径向外侧，所述挡油件(14)通过压合工艺固定在所述台阶部(13a)处。
  10. 根据权利要求1至9中任一项所述的减振装置(10)，其特征在于，所述外部装置是变速器(20)，所述输出毂(13)用于与所述变速器(20)的输入轴(21)连接。
PCT/CN2023/107764 2023-07-17 2023-07-17 减振装置 Ceased WO2025015504A1 (zh)

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