WO2023097619A1 - 具有锁紧功能的花键连接结构及轮内驱动装置 - Google Patents

具有锁紧功能的花键连接结构及轮内驱动装置 Download PDF

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Publication number
WO2023097619A1
WO2023097619A1 PCT/CN2021/135139 CN2021135139W WO2023097619A1 WO 2023097619 A1 WO2023097619 A1 WO 2023097619A1 CN 2021135139 W CN2021135139 W CN 2021135139W WO 2023097619 A1 WO2023097619 A1 WO 2023097619A1
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Prior art keywords
spline
connection structure
locking
abutting
parts
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PCT/CN2021/135139
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English (en)
French (fr)
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郭淮伟
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舍弗勒技术股份两合公司
郭淮伟
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Application filed by 舍弗勒技术股份两合公司, 郭淮伟 filed Critical 舍弗勒技术股份两合公司
Priority to PCT/CN2021/135139 priority Critical patent/WO2023097619A1/zh
Publication of WO2023097619A1 publication Critical patent/WO2023097619A1/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
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • 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
    • F16F15/129—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 characterised by friction-damping means

Definitions

  • the present application relates to a vehicle drive device, and in particular to a spline connection structure with a locking function and an in-wheel drive device.
  • the brake drum and the sun gear shaft are splined, and the tooth flanks of the splines have clearances, that is, the splines of the brake drum and the splines of the sun gear shaft are loosely fitted instead of interference fit.
  • the brake drum rotates almost freely with the sun gear shaft.
  • the splined contact surfaces of the brake drum and the sun gear shaft are repeatedly switched, which causes noise.
  • This application has been made in view of the above-mentioned state of the prior art.
  • the purpose of the present application is to provide a spline connection structure with a locking function and an in-wheel drive device that can eliminate or reduce the noise of the spline connection structure.
  • a spline connection structure with a locking function which includes:
  • first spline member having a plurality of first teeth
  • a second spline member having a second plurality of teeth that are in clearance fit with the first plurality of teeth
  • the second spline part includes one or more receiving parts recessed away from the locking part along the axial direction of the second spline part
  • the locking part includes one or more A part of one or more of the abutting parts extends into the accommodating part along the axial direction and abuts against the side wall of the accommodating part.
  • the locking member includes an internally threaded ring and a plurality of abutting portions protruding radially outward from the internally threaded ring, and a plurality of notches distributed along the circumferential direction are separated There are a plurality of abutting portions, the axial thickness of at least the outer peripheral portion of the abutting portion is smaller than the axial thickness of the internally threaded ring,
  • the receiving portion is located on one end surface of the second spline component, the radial height of the receiving portion is greater than the radial height of the abutting portion, and the outer peripheral portion of the accommodating portion is located on the abutting portion radially outside of
  • One or more of said abutment parts are punched to make a part thereof protrude into said receiving part.
  • a plurality of the accommodating portions and a plurality of the abutting portions are evenly arranged in the circumferential direction, the number of the accommodating portions is not equal to the number of the abutting portions, and the abutting portions
  • the number of sections is not an integer multiple of the number of the accommodation sections.
  • the accommodating portion extends along the radial direction of the second spline component, and the accommodating portion is open at an end close to the radially outer side of the second spline component.
  • the width of the abutting portion in the circumferential direction is greater than the width of the receiving portion in the circumferential direction.
  • a retaining ring is further included, the retaining ring is sleeved on the first spline part and abuts against the other side end surface of the second spline part, so as to stop the second spline axially.
  • Spline parts are further included, the retaining ring is sleeved on the first spline part and abuts against the other side end surface of the second spline part, so as to stop the second spline axially.
  • An in-wheel driving device which includes the spline connection structure with locking function of the present application.
  • the first spline component is a sun gear shaft
  • the second spline component is a brake drum
  • the brake drum is integrally installed in the radial direction of the plurality of first spline teeth. outside.
  • the second splined part comprises:
  • An annular portion protrudes from the outer peripheral edge of the axial end wall toward one side in the axial direction.
  • the second splined part cannot rotate relative to the locking part, and the locking part is screwed to the first splined part, therefore, the second splined part cannot rotate relative to the first splined part, and the first spline and the second key
  • the contact surface of the tooth will not switch repeatedly, which can eliminate or reduce the noise of the spline connection structure.
  • Fig. 1 shows a perspective view of a spline connection structure according to an embodiment of the present application.
  • Fig. 2 shows an exploded view of the spline connection structure in Fig. 1 .
  • FIG. 3 shows a cross-sectional view of the splined connection structure in FIG. 1 .
  • FIG. 4 shows a front view of the spline connection structure in FIG. 1 .
  • axial refers to the axial direction of the sun gear shaft, which is consistent with the axial direction of the brake drum, locking member and retaining ring.
  • One side in the axial direction refers to the left side in FIGS. 1 to 3
  • the other side in the axial direction refers to the right side in FIGS. 1 to 3 .
  • Cyrcumferential direction refers to the circumferential direction of the sun gear shaft, and the circumferential direction of the sun gear shaft is consistent with the circumferential direction of the brake drum, locking piece and retaining ring.
  • Ring refers to the radial direction of the sun gear shaft, and the radial direction of the sun gear shaft is consistent with the radial direction of the brake drum, locking member and retaining ring.
  • an embodiment of the present application provides a splined connection structure with a locking function, and the splined connection structure can be especially, but not limited to, applied to an in-wheel drive device. It should be emphasized that what is shown in Fig. 1 to Fig. 4 is the state when the locking member 3 is not stamped.
  • the in-wheel drive device includes a sun gear shaft 1 (an example of a first spline member), a brake drum 2 (an example of a second spline member), and a lock member 3 .
  • the sun gear shaft 1 has a cylindrical structure with both ends open, and a plurality of first splines 11 are arranged at one end thereof.
  • a plurality of first key teeth 11 are evenly arranged along the circumferential direction C on the outer peripheral surface of the sun gear shaft 1 and form a spline structure.
  • the brake drum 2 comprises an axial end wall 21 and an annular portion 22 .
  • the axial end wall 21 has an annular structure, and a plurality of second splines 211 are arranged on the inner peripheral surface of the axial end wall 21 .
  • the plurality of second teeth 211 are evenly arranged along the circumferential direction C and form a spline structure.
  • the annular portion 22 protrudes toward one side in the axial direction from the outer peripheral edge of the axial end wall 21 .
  • the brake drum 2 is sleeved on the radially outer side of the sun gear shaft 1 , and a plurality of first splines 11 meshes with a plurality of second splines 211 to form a spline connection.
  • the plurality of first splines 11 are in clearance fit with the plurality of second splines 211 , so that there is a gap between the sides of the first splines 11 and the second splines 211 opposite to each other in the circumferential direction C.
  • the locking member 3 includes an internally threaded ring 31 and an abutting portion 32 , and the sheet-shaped abutting portion 32 protrudes radially outward from the internally threaded ring 31 .
  • the abutting portion 32 may be perpendicular to the axial direction A to save the space of the locking member 3 in the axial direction A.
  • the locking member 3 is sleeved on the sun gear shaft 1 and threadedly connected with the sun gear shaft 1 , and the other axial end of the locking member 3 abuts against the axial one end of the axial end wall 21 .
  • the part corresponding to the abutment part 32 on one axial end of the axial end wall 21 is provided with a receiving part 21a, and the receiving part 21a is recessed along the axial direction A away from the locking member 3 to form a groove-like structure.
  • the abutting portion 32 can be punched to deform the abutting portion 32 , and the portion of the abutting portion 32 corresponding to the accommodating portion 21 a protrudes into the accommodating portion 21 a and abuts against the side wall of the accommodating portion 21 a.
  • the brake drum 2 cannot rotate relative to the locking member 3, and the locking member 3 cannot rotate relative to the sun gear shaft 1 either. In this way, the brake drum 2 cannot rotate relative to the sun gear shaft 1, the contact surfaces of the first spline 11 and the second spline 211 will not switch repeatedly, and the noise of the spline connection structure can be eliminated or reduced.
  • the locking member 3 may further include a plurality of notches 3 a, and the plurality of notches 3 a may be arranged along the circumferential direction C to separate a plurality of abutting portions 32 .
  • the number of accommodating portions 21a may be multiple.
  • the plurality of abutting portions 32 can extend into the plurality of accommodating portions 21a, so as to improve the reliability of locking.
  • the plurality of gaps 3a separate the plurality of abutment portions 32, so that when one of the plurality of abutment portions 32 is punched, the remaining abutment portions 32 will not or are not easily affected by the punched abutment portion 32. Then deformed.
  • the locking member 3 can have high reliability.
  • the tool can extend into the notch 3 a and abut against the side wall of the notch 3 a to rotate the locking member 3 . In this way, the assembly difficulty of the connection structure is reduced, and the usability of the connection structure is improved.
  • the user may only make some abutting portions 32 of the plurality of abutting portions 32 extend into the accommodating portion 21a as required.
  • a plurality of accommodating portions 21a and a plurality of abutting portions 32 may be evenly arranged in the circumferential direction C, the number of accommodating portions 21a may be different from the number of abutting portions 32, and the number of abutting portions 32 may not be equal to the number of accommodating portions 21a. Integer multiples. In one example, the number of receiving parts 21 a may be five, and the number of abutting parts 32 may be six. With such an arrangement, no matter how the locking member 3 rotates in the circumferential direction C, there is always at least one accommodating portion 21 a corresponding to at least one abutting portion 32 in the circumferential direction C. The assembly difficulty of the connection structure is reduced, and the usability of the connection structure is improved.
  • the number of accommodating portions 21 a may also be greater than the number of abutting portions 32 .
  • the axial thickness of the abutting portion 32 may be smaller than the axial thickness of the internally threaded ring 31 , and the thickness of the transition portion between the abutting portion 32 and the internally threaded ring 31 may be gradually changed. In this way, when the abutment portion 32 is stamped, the internal thread ring 31 will not or is not easily deformed by the impact of the abutment portion 32 being stamped.
  • the locking member 3 can have high reliability.
  • the radial height of the accommodating portion 21 a may be greater than that of the abutting portion 32 , and the outer peripheral portion of the accommodating portion 21 a may be located radially outside of the abutting portion 32 . In this way, when the locking member 3 abuts against the brake drum 2 , the accommodating portion 21 a will not be completely covered by the abutting portion 32 . The user can easily observe the corresponding relationship between the accommodating portion 21 a and the abutting portion 32 , which is convenient for stamping the abutting portion 32 .
  • the receiving portion 21 a may extend in the radial direction, and one end of the receiving portion 21 a close to the radially outer side of the brake drum 2 is open. In this way, when the locking member 3 needs to be disassembled, the user can easily insert a tool between the abutting portion 32 and the accommodating portion 21a from the radially outer side, so that the abutting portion 32 is separated from the accommodating portion 21a.
  • the disassembly difficulty of the spline connection structure is reduced, and the usability of the connection structure is improved.
  • the width of the abutting portion 32 in the circumferential direction C may be greater than the width of the accommodating portion 21 a in the circumferential direction C. In this way, when the locking member 3 rotates, the abutting portion 32 can cover the accommodating portion 21a with a greater probability. The user can easily rotate the locking member 3 to a proper position, which improves the usability of the spline connection structure.
  • the in-wheel driving device may further include a retaining ring 4 , which is fitted on the sun gear shaft 1 and abuts against the other end in the axial direction of the axial end wall 21 . In this way, the stop ring 4 can limit the brake drum 2 in the axial direction A.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

提供了一种具有锁紧功能的花键连接结构及轮内驱动装置，其包括：第一花键部件，其具有多个第一键齿(11)；第二花键部件，其具有多个第二键齿(211)，多个第二键齿(211)与多个第一键齿(11)间隙配合；以及锁紧件(3)，其螺纹连接到第一花键部件，锁紧件(3)在第二花键部件的周向(C)上抵靠第二花键部件，从而防止第二花键部件相对于锁紧件(3)转动。第二花键部件不能相对第一花键部件转动，第一键齿(11)和第二键齿(211)的接触面不会重复地切换，可以消除或减小花键连接结构的噪音。

Description

具有锁紧功能的花键连接结构及轮内驱动装置 技术领域
本申请涉及车辆驱动装置，且特别涉及具有锁紧功能的花键连接结构及轮内驱动装置。
背景技术
已知具有间隙的花键连接结构。
例如，在轮内驱动装置中，制动鼓和太阳轮轴花键连接，花键的齿侧面具有间隙，即制动鼓的花键和太阳轮轴的花键松配合而非过盈配合。
在非制动状态下，制动鼓随着太阳轮轴几乎自由地转动。在太阳轮的速度发生波动时，制动鼓和太阳轮轴的花键接触面重复地切换，这会引起噪音。
发明内容
鉴于上述现有技术的状态而做出本申请。本申请的目的在于提供一种可以消除或减小花键连接结构的噪音的具有锁紧功能的花键连接结构及轮内驱动装置。
提供一种具有锁紧功能的花键连接结构，其包括：
第一花键部件，其具有多个第一键齿；
第二花键部件，其具有多个第二键齿，所述多个第二键齿与所述多个第一键齿间隙配合；以及
锁紧件，其螺纹连接到所述第一花键部件，所述锁紧件在所述第二花键部件的周向上抵靠所述第二花键部件，从而防止所述第二花键部件相对于所述锁紧件转动。
在至少一个实施方式中，所述第二花键部件包括一个或多个沿所述第二 花键部件的轴向远离所述锁紧件凹陷的容纳部，所述锁紧件包括一个或多个抵靠部，一个或多个所述抵靠部的一部分沿所述轴向伸入所述容纳部并且抵靠所述容纳部的侧壁部。
在至少一个实施方式中，所述锁紧件包括内螺纹环和从所述内螺纹环朝向径向外侧伸出的多个所述抵靠部，多个沿着所述周向分布的缺口分隔出多个所述抵靠部，所述抵靠部的至少外周部的轴向厚度小于所述内螺纹环的轴向厚度，
所述容纳部位于所述第二花键部件的一侧端面，所述容纳部的径向高度大于所述抵靠部的径向高度，并且所述容纳部的外周部位于所述抵靠部的径向外侧，
通过冲压一个或多个所述抵靠部使其一部分伸入所述容纳部。
在至少一个实施方式中，多个所述容纳部和多个所述抵靠部在所述周向均匀布置，所述容纳部的数量与所述抵靠部的数量不等，所述抵靠部的数量不是所述容纳部的数量的整数倍。
在至少一个实施方式中，所述容纳部沿所述第二花键部件的径向延伸，所述容纳部靠所述第二花键部件的径向外侧的一端开放。
在至少一个实施方式中，所述抵靠部在所述周向上的宽度大于所述容纳部在所述周向上的宽度。
在至少一个实施方式中，还包括挡圈，所述挡圈套装于所述第一花键部件并且抵靠所述第二花键部件的另一侧端面，以轴向止挡所述第二花键部件。
提供一种轮内驱动装置，其包括本申请的具有锁紧功能的花键连接结构。
在至少一个实施方式中，所述第一花键部件为太阳轮轴，所述第二花键 部件为制动鼓，所述制动鼓整体上安装在所述多个第一键齿的径向外侧。
在至少一个实施方式中，所述第二花键部件包括：
轴向端壁，其内周缘具有所述多个第二键齿，所述容纳部形成于所述轴向端壁的轴向一侧端面；以及
环状部，其从所述轴向端壁的外周缘朝向轴向一侧伸出。
第二花键部件不能相对于锁紧件转动，锁紧件螺纹连接到第一花键部件，因而，第二花键部件不能相对于第一花键部件转动，第一键齿和第二键齿的接触面不会重复地切换，可以消除或减小花键连接结构的噪音。
附图说明
图1示出了根据本申请的一个实施方式的花键连接结构的立体图。
图2示出了图1中的花键连接结构的爆炸图。
图3示出了图1中的花键连接结构的一个剖视图。
图4示出了图1中的花键连接结构的前视图。
具体实施方式
下面参照附图描述本申请的示例性实施方式。
在本申请中，如无特殊说明，“轴向”是指太阳轮轴的轴向，太阳轮轴的轴向与制动鼓、锁紧件和挡圈的轴向一致。“轴向一侧”是指图1至图3中的左侧，“轴向另一侧”是指图1至图3中的右侧。“周向”是指太阳轮轴的周向，太阳轮轴的周向与制动鼓、锁紧件和挡圈的周向一致。“径向”是指太阳轮轴的径向，太阳轮轴的径向与制动鼓、锁紧件和挡圈的径向一致。
参照图1至图4，本申请的实施方式提供一种具有锁紧功能的花键连接结构，该花键连接结构尤其可以、但不限于适用于轮内驱动装置。需要强调的是，图1至图4示出的是锁紧件3未被冲压时的状态。
轮内驱动装置包括太阳轮轴1(第一花键部件的示例)、制动鼓2(第二花键部件的示例)、锁紧件3。太阳轮轴1具有两端开放的筒状结构，其一侧端部设置有多个第一键齿11。多个第一键齿11在太阳轮轴1的外周面沿周向C均匀地布置并形成花键结构。制动鼓2包括轴向端壁21和环状部22。轴向端壁21呈环状结构，轴向端壁21的内周面设置有多个第二键齿211。多个第二键齿211沿周向C均匀地布置并形成花键结构。环状部22从轴向端壁21的外周缘朝向轴向一侧伸出。制动鼓2套装于太阳轮轴1的径向外侧，多个第一键齿11与多个第二键齿211啮合形成花键连接。多个第一键齿11与多个第二键齿211间隙配合，使得第一键齿11与第二键齿211彼此周向C相对的侧面之间存在间隙。
锁紧件3包括内螺纹环31和抵靠部32，薄片状的抵靠部32从内螺纹环31朝向径向外侧伸出。抵靠部32可以与轴向A垂直以节省锁紧件3在轴向A上的空间。锁紧件3套装于太阳轮轴1并且与太阳轮轴1螺纹连接，锁紧件3的轴向另一侧端部抵靠轴向端壁21的轴向一侧端部。轴向端壁21的轴向一侧端部上与抵靠部32对应的部分设置有容纳部21a，容纳部21a沿轴向A向远离锁紧件3的方向凹陷形成槽状结构。
可以冲压抵靠部32使抵靠部32变形，抵靠部32与容纳部21a对应的部分伸入容纳部21a并且抵靠容纳部21a的侧壁部。制动鼓2不能相对于锁紧件3转动，锁紧件3也不能相对太阳轮轴1转动。这样，制动鼓2不能相对太阳轮轴1转动，第一键齿11和第二键齿211的接触面不会重复地切换，可以消除或减小花键连接结构的噪音。
锁紧件3还可以包括多个缺口3a，多个缺口3a可以沿周向C布置，以分隔出多个抵靠部32。相应地，容纳部21a的数量可以为多个。这样，多个抵靠部32能够伸入多个容纳部21a，以提高锁紧的可靠性。此外，多个缺口3a隔 开多个抵靠部32，使得当冲压多个抵靠部32中的一个时，其余的抵靠部32不会或不易受到被冲压的抵靠部32的影响而随之变形。锁紧件3能够具有较高的可靠性。当需要将锁紧件3拧紧在太阳轮轴1上时，工具能够伸入缺口3a并抵靠缺口3a的侧壁部以转动锁紧件3。这样，降低了连接结构的装配难度，提升了连接结构的易用性。
应当理解，当多个抵靠部32均能够伸入容纳部21a时，使用者可以根据需要仅使多个抵靠部32中的部分抵靠部32伸入容纳部21a。
多个容纳部21a和多个抵靠部32可以在周向C均匀布置，容纳部21a的数量可以与抵靠部32的数量不等，抵靠部32的数量可以不是容纳部21a的数量的整数倍。在一个示例中，容纳部21a的数量可以为5个，抵靠部32的数量可以为6个。采用这样的布置方式，无论锁紧件3在周向C如何转动，总存在至少一个容纳部21a与至少一个抵靠部32在周向C上对应。降低了连接结构的装配难度，提升了连接结构的易用性。
应当理解，容纳部21a的数量也可以大于抵靠部32的数量。
抵靠部32的轴向厚度可以小于内螺纹环31的轴向厚度，并且抵靠部32与内螺纹环31之间的过渡部分的厚度可以是渐变的。这样，当冲压抵靠部32时，内螺纹环31不会或不易受到被冲压的抵靠部32的影响而随之变形。锁紧件3能够具有较高的可靠性。
容纳部21a的径向高度可以大于抵靠部32的径向高度，并且容纳部21a的外周部可以位于抵靠部32的径向外侧。这样，当锁紧件3抵靠制动鼓2时，容纳部21a不会被抵靠部32完全遮挡。使用者容易观察到容纳部21a与抵靠部32之间对应关系，便于对抵靠部32进行冲压处理。
容纳部21a可以沿径向延伸，并且容纳部21a靠近制动鼓2的径向外侧的一端开放。这样，当需要对锁紧件3进行拆卸时，使用者容易将工具从径向 外侧插入抵靠部32与容纳部21a之间，以使抵靠部32离开容纳部21a。降低了花键连接结构的拆卸难度，提升了连接结构的易用性。
抵靠部32在周向C上的宽度可以大于容纳部21a在周向C上的宽度。这样，当锁紧件3转动时，抵靠部32能够有更大的概率遮盖容纳部21a。使用者容易使锁紧件3转动至合适的位置，提升了花键连接结构的易用性。
轮内驱动装置还可以包括挡圈4，挡圈4套装于太阳轮轴1并且抵靠轴向端壁21的轴向另一侧端部。这样，挡圈4能够在轴向A上对制动鼓2进行限位。
应当理解，上述实施方式仅是示例性的，不用于限制本申请。本领域技术人员可以在本申请的教导下对上述实施方式做出各种变型和改变，而不脱离本申请的范围。
附图标记列表
1太阳轮轴
11第一键齿
2制动鼓
21轴向端壁
211第二键齿
21a容纳部
22环状部
3锁紧件
31内螺纹环
32抵靠部
3a缺口
4挡圈
A轴向
C周向

Claims (10)

  1. 一种具有锁紧功能的花键连接结构，其特征在于，包括：
    第一花键部件，其具有多个第一键齿(11)；
    第二花键部件，其具有多个第二键齿(211)，所述多个第二键齿(211)与所述多个第一键齿(11)间隙配合；以及
    锁紧件(3)，其螺纹连接到所述第一花键部件，所述锁紧件(3)在所述第二花键部件的周向(C)上抵靠所述第二花键部件，从而防止所述第二花键部件相对于所述锁紧件(3)转动。
  2. 根据权利要求1所述的具有锁紧功能的花键连接结构，其特征在于，所述第二花键部件包括一个或多个沿所述第二花键部件的轴向(A)远离所述锁紧件(3)凹陷的容纳部(21a)，所述锁紧件(3)包括一个或多个抵靠部(32)，一个或多个所述抵靠部(32)的一部分沿所述轴向(A)伸入所述容纳部(21a)并且抵靠所述容纳部(21a)的侧壁部。
  3. 根据权利要求2所述的具有锁紧功能的花键连接结构，其特征在于，所述锁紧件(3)包括内螺纹环(31)和从所述内螺纹环(31)朝向径向外侧伸出的多个所述抵靠部(32)，多个沿着所述周向(C)分布的缺口(3a)分隔出多个所述抵靠部(32)，所述抵靠部(32)的至少外周部的轴向厚度小于所述内螺纹环(31)的轴向厚度，
    所述容纳部(21a)位于所述第二花键部件的一侧端面，所述容纳部(21a)的径向高度大于所述抵靠部(32)的径向高度，并且所述容纳部(21a)的外周部位于所述抵靠部(32)的径向外侧，
    通过冲压一个或多个所述抵靠部(32)使其一部分伸入所述容纳部(21a)。
  4. 根据权利要求2所述的具有锁紧功能的花键连接结构，其特征在于，多个所述容纳部(21a)和多个所述抵靠部(32)在所述周向(C)均匀布置， 所述容纳部(21a)的数量与所述抵靠部(32)的数量不等，所述抵靠部(32)的数量不是所述容纳部(21a)的数量的整数倍。
  5. 根据权利要求2所述的具有锁紧功能的花键连接结构，其特征在于，所述容纳部(21a)沿所述第二花键部件的径向延伸，所述容纳部(21a)靠所述第二花键部件的径向外侧的一端开放。
  6. 根据权利要求2所述的具有锁紧功能的花键连接结构，其特征在于，所述抵靠部(32)在所述周向(C)上的宽度大于所述容纳部(21a)在所述周向(C)上的宽度。
  7. 根据权利要求1所述的具有锁紧功能的花键连接结构，其特征在于，还包括挡圈(4)，所述挡圈(4)套装于所述第一花键部件并且抵靠所述第二花键部件的另一侧端面，以轴向止挡所述第二花键部件。
  8. 一种轮内驱动装置，其特征在于，包括权利要求1至7中任一项所述的具有锁紧功能的花键连接结构。
  9. 根据权利要求8所述的轮内驱动装置，其特征在于，所述第一花键部件为太阳轮轴(1)，所述第二花键部件为制动鼓(2)，所述制动鼓(2)整体上安装在所述多个第一键齿(11)的径向外侧。
  10. 根据权利要求8所述的轮内驱动装置，其特征在于，所述第二花键部件包括：
    轴向端壁(21)，其内周缘具有所述多个第二键齿(211)，所述容纳部(21a)形成于所述轴向端壁(21)的轴向一侧端面；以及
    环状部(22)，其从所述轴向端壁(21)的外周缘朝向轴向一侧伸出。
PCT/CN2021/135139 2021-12-02 2021-12-02 具有锁紧功能的花键连接结构及轮内驱动装置 WO2023097619A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1545416A (en) * 1977-06-02 1979-05-10 Horton Ind Torque transmitting assemblies
CN105697563A (zh) * 2014-12-11 2016-06-22 保时捷股份公司 用于机动车辆传动系的扭矩传递的连接布置
CN108458047A (zh) * 2017-02-21 2018-08-28 丰田自动车株式会社 摩擦阻尼器
CN112253639A (zh) * 2020-10-23 2021-01-22 舍弗勒技术股份两合公司 传动轴组件
CN214661765U (zh) * 2020-11-10 2021-11-09 舍弗勒技术股份两合公司 连接毂组件

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1545416A (en) * 1977-06-02 1979-05-10 Horton Ind Torque transmitting assemblies
CN105697563A (zh) * 2014-12-11 2016-06-22 保时捷股份公司 用于机动车辆传动系的扭矩传递的连接布置
CN108458047A (zh) * 2017-02-21 2018-08-28 丰田自动车株式会社 摩擦阻尼器
CN112253639A (zh) * 2020-10-23 2021-01-22 舍弗勒技术股份两合公司 传动轴组件
CN214661765U (zh) * 2020-11-10 2021-11-09 舍弗勒技术股份两合公司 连接毂组件

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