• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The universal joint includes a yoke with legs having holes extending therethrough. The hole includes an annular groove. The universal joint also includes a retaining member comprising a cruciform with a trunnion, a bearing cup positioned in the hole and mounted to the trunnion, and an outer ring having a first surface and a second surface. The retaining member includes a spring tab extending axially beyond the first surface and disposed in the hole for biasing engagement with the bearing cup. The second surface of the retaining member is at least partially disposed in the groove.
    公开号:KR20010078231A
    申请号:KR1020010004786
    申请日:2001-02-01
    公开日:2001-08-20
    发明作者:로버트에이. 웨너；토마스제이. 올덴버그；도날드제이. 쿠레카；살바토르엔. 그루피도
    申请人:추후보정；아메리칸 액슬 앤드 매뉴팩쳐링 인코포레이티드；
    IPC主号:
    专利说明:

    Universal Joint {UNIVERSAL JOINT}
    [12] The present invention relates to a universal joint for use in a drive line of a motor vehicle. More specifically, the invention relates to a universal joint equipped with a retention member for securing a bearing cup to a yoke.
    [13] As is known, universal joints are used in the field of automotive drivelines for interconnecting a pair of axes of rotation and allowing for angular changes between them. Many conventional universal joints include a pair of branched yokes secured to the axis of rotation. Branched yokes are interconnected by spiders or cruciforms for rotation around independent axes. The spider includes four orthogonal trunnions with a pair of axially aligned trunnions facing each other mounted on a pair of aligned bores formed in the branched yoke. Typically, a bearing cup is secured to each bore and a bearing assembly is held in the bearing cup such that each yoke is suitably supported for pivoting on a pair of trunnions.
    [14] Various retention methods have been developed for securing the bearing cup to the yoke in such a way that the rotary axis of each yoke is centered with respect to the spider's rotary mandrel. Conventional bearing cup holding methods include the use of grooves, belleville washers and snap rings. However, this method has one or more disadvantages such as, for example, excessive processing requirements, limited repair capacity, and expensive manufacturing costs. In particular, one type of conventional universal joint uses a planar snap ring seated in a bored circumferential groove formed in the yoke to hold the bearing cup axially. However, due to the dimensional variation of each component, excessive gaps between the bearing cup and the snap ring accumulate to ensure assembly. Thus, a dishwasher is disposed between the bearing cup and the snap ring to preload the bearing and to center the cross in the yoke.
    [15] Other universal joint retainers have attempted to compensate for dimensional variations in parts but at the expense of repairability. Various examples of bearing cup retention arrangements and methods associated with conventional universal joints are disclosed in US Pat. Nos. 3,062,026, 3,178,907, and 4,000,628.
    [16] Accordingly, the present invention is directed to overcoming the disadvantages associated with the fabrication and subsequent repair of conventional universal joints. Therefore, it is an object of the present invention to reduce the number of parts and the cost required to fabricate easily repairable universal joint assemblies.
    [17] The present invention relates to a universal joint for interconnecting a pair of rotational axes. The universal joint includes a yoke with a leg having a hole extending therethrough. The hole includes an annular groove. The universal joint includes a retaining member comprising a cruciform with a trunnion, a bearing cup positioned in the hole and mounted on the trunnion, and an outer ring having a first surface and a second surface. The retaining member further includes a spring tab extending axially beyond the first surface and disposed in the hole, the spring tab engaging the bearing cup. The second surface of the retaining member is at least partially disposed in the groove.
    [18] Other areas of applicability of the present invention will become apparent from the detailed description provided hereinafter. However, it is understood that the detailed description and specific examples representing the preferred embodiments of the present invention are intended for purposes of illustration only, as various changes and modifications within the spirit and spirit of the present invention will become apparent to those skilled in the art from the detailed description. shall.
    [19] The invention will be fully understood from the description and the accompanying drawings.
    [1] 1 is a perspective view of a universal joint in accordance with the principles of the invention;
    [2] 2 is an exploded perspective view of the universal joint shown in FIG.
    [3] 3 is a perspective view of a retaining member in accordance with the principles of the present invention;
    [4] 4 is a cross-sectional view of the holding member shown in FIG.
    [5] 5 is a partial cross-sectional view of one yoke associated with the universal joint shown in FIGS. 1 and 2.
    [6] Explanation of symbols on the main parts of the drawings
    [7] 10: universal joint 12, 14: shaft
    [8] 16, 18: York 20: cruciform
    [9] 30, 40: annular groove 44, 46: trunnion
    [10] 48, 50: bearing cup 60: holding member
    [11] 72: spring tab
    [20] In general, the present invention relates to a universal joint of the type used in the field of automotive drivelines for interconnecting rotational axes in a manner that allows for a change in angle therebetween.
    [21] 1 and 2, the universal joint 10 connects the first shaft 12 and the second shaft 14. Generally, the universal joint 10 includes a first yoke 16 attached to the end of the first shaft 12, a second yoke 18 attached to the end of the second shaft 14, and a first yoke. Crosshairs 20 interconnecting 16 to the second yoke 18. The first yoke 16 includes a pair of laterally spaced legs 22 which are branched and are preferably symmetrical with respect to the rotation mandrel of the first axis 12, as indicated by line “A”. Leg 22 includes an inner side 24 and an outer side 26 and a hole 28 extends between them. The hole 28 is aligned with the first trunnion mandrel, penetrating and orthogonal to the axis of rotation A of the first axis 12, as indicated by line “B”. Each hole 28 is a through bore and includes an annular ring groove 30 positioned between the inner side 24 and the outer side 26.
    [22] The second yoke 18 includes a pair of laterally spaced legs 32 which are branched and are preferably symmetrical with respect to the rotation mandrel of the second axis 14, as indicated by line “B”. Leg 32 includes an inner side 34 and an outer side 36 with holes 38 extending therebetween. The hole 38 is aligned with a second trunnion mandrel penetrating and orthogonal to the axis of rotation B of the second axis 14, as indicated by line “Z”. The hole 38 is a through bore and includes an annular groove 40 formed between the inner side 34 and the outer side 36. It should be appreciated that the shape and dimensions of the holes 28, 38 may be the same or different depending on the specific dimensions of the derailleur 20 used between them. It should also be appreciated that the annular ring grooves 30, 40 may be formed by machining, casting or similar techniques.
    [23] As shown in FIG. 2, the crosshair 20 includes a central hub 42 extending from a pair of first trunnions 44 and a pair of second trunnions 46. The first trunnion 44 is orthogonal to the second trunnion 46. The first trunnion 44 is adapted for insertion into the hole 28 in the leg 22 of the first yoke 16 to be axially aligned with the first trunnion mandrel Y. Similarly, the second trunnion 46 is adapted for insertion into the hole 38 in the leg 32 of the second yoke 18 to be axially aligned with the second trunnion mandrel Z. With the first trunnion 44 and the second trunnion 46 mounted to the first yoke and the second yoke 16, 18, respectively, the trunnion mandrel Y, Z is in the plane "C". As shown in FIG. 1, it passes through a common plane that crosses the rotation mandrel of the cruciform 20. The universal joint 10 also includes a pair of first bearing cups 48 adapted to be mounted in the bore 28 and a pair of second bearing cups 50 adapted to be mounted in the bore 38. . The first bearing cup 48 is provided to receive and rotatably support the first trunnion 44 in the hole 28. Similarly, a second bearing cup 50 is provided for receiving and rotatably supporting the second trunnion 46 in the hole 38. As shown, each bearing cup 48, 50 includes a tubular sleeve segment 49 closed by an end segment 51. A roller bearing assembly 52 is mounted to the sleeve segment to rotatably support the trunnions 44 and 46 therein. In addition, an annular elastic seal 54 is mounted on each trunnion 44, 46 to provide a seal against the open end of the sleeve segment 49 of each bearing cup 48, 50. do.
    [24] In order to assemble the universal joint 10, one bearing cup 48 is mounted in one first trunnion 44 prior to insertion into the corresponding hole 28 so that the longitudinal section of the trunnion corresponds to the corresponding bearing cup. It is arranged in a state of being coupled adjacent to the end segment 51 of the. In general, the trunnions 44, 46 are mounted in the corresponding holes 28, 38 and the bearing cups 48, 50 are mounted in the holes 28, 38. To illustrate the cross alignment and retaining device used in connection with the yoke 16, 18, reference is now made to FIGS. 3, 4 and 5. However, although the following description is particularly relevant to the retention of the cruciform 20 relative to the first yoke 16, it can be appreciated that a similar procedure is taken to use the second yoke 18.
    [25] Once the rotation mandrel A of the first axis 12 is coaxially aligned with the rotation mandrel B of the second axis 14, the retaining member 60 is adapted to retain the above-described parts relative to each other. Cooperate with bearing cup 48. Referring to FIG. 3, the retaining member 60 includes a "C" shaped outer ring 62 which is a general plane having an upper surface 64 and a lower surface 66. The outer ring terminates at the first and second ends 68 and 70 and includes a hole 71 extending therethrough to facilitate mounting of the retaining member 60 as described in more detail below. .
    [26] As shown in FIGS. 4 and 5, the retaining member 60 has a plurality of radially oriented receiving spring tabs extending a distance 74 above the plane defined by the bottom surface 66 of the outer ring 62. (72) further. In order to provide resistance to permanent deformation during operation, the retaining member 60 is preferably made of an elastic material such as spring steel. Moreover, those skilled in the art will understand that a single spring tab 72 may be used in place of many illustrated in the figures without departing from the spirit of the invention. Further, while the preferred embodiment has illustrated the spring tab 72 as a general rectangular planar part, it will be appreciated that other geometric designs are gaze within the gist of the present invention.
    [27] 5, the universal joint 10 of the present invention is provided in an assembled state. Preferably, the retaining member 60 reduces the outer diameter of the outer ring 62 using a tool (not shown) that cooperates with the hole 71 and positions the retaining member 60 within the hole 28. By mounting. The retaining member 60 is inserted into the hole 28 until the spring tab 72 is axially compressed and biasedly engaged with the end segment 51 of the bearing cup 48. After the retaining member 60 is positioned adjacent the ring groove 40, the tool is removed and the outer ring 62 extends into the ring groove 40. Those skilled in the art will appreciate that the spring tab is illustrated in dotted line representation as element 72A and in an inclined mounting position to illustrate the spring tab orientation before engaging the end segment 51 of the bearing cup 48. It will be understood that 72 is illustrated in solid form. Those skilled in the art will further understand that, prior to mounting, the spring tab 72A extends the distance 74 to compensate for the "stack-up" or summation of the component gap described previously. will be. Thus, care must be taken to ensure that the distance 74 is not only taken into account to compensate for the variance but also large enough to impart a beneficial preload on the bearing cup.
    [28] Therefore, it should be understood that the shape and operation of the universal joint 10 provides manufacturing and functional advantages over the prior art. In particular, the universal joint 10 of the present invention uses a retaining member to reduce the number of parts, thereby facilitating assembly and reducing manufacturing costs.
    [29] Although the invention has been described in the specification and illustrated in the drawings with reference to the preferred embodiments, various changes may be made and equivalent elements may be substituted for them without departing from the spirit of the invention as defined in the claims. Will be understood by those skilled in the art. In addition, many modifications may be made to adapt a particular situation and material to the teachings of the invention without departing from the substantial spirit thereof. Therefore, the present invention is not limited to the specific embodiments illustrated by the drawings and illustrated by the drawings as the best mode stared for carrying out the invention, but the invention includes embodiments consistent with the description of the appended claims. It is intended to be.
    [30] According to the universal joint according to the present invention can overcome the disadvantages associated with the fabrication and subsequent maintenance of the conventional universal joint, it is possible to reduce the number of parts and the cost required to produce a easily repairable universal joint assembly.
    权利要求:
    Claims (7)
    [1" claim-type="Currently amended] A yoke extending through the leg and including a hole including an annular groove,
    A cross with trunnions,
    A bearing cup mounted on the trunnion and positioned in the hole;
    A universal joint comprising a retaining member comprising an outer ring having a first surface and a second surface, the universal joint comprising:
    The retaining member further comprises a spring tab disposed in the groove and extending axially beyond the first surface to biasably engage the bearing cup,
    And said first surface of said retaining member is at least partially disposed in said groove.
    [2" claim-type="Currently amended] The universal joint of claim 1 wherein said retaining member comprises a plurality of converging spring tabs extending radially from said outer ring.
    [3" claim-type="Currently amended] 2. The universal joint of claim 1 wherein said bearing cup comprises a sleeve segment and an end segment, and said spring tab is biasedly engaged with said end segment of said bearing cup.
    [4" claim-type="Currently amended] A first yoke rotating about the first rotating mandrel and including a pair of first legs each having a first through bore including a first annular groove,
    A second yoke rotating about a second rotating mandrel, the second yoke including a pair of second legs each having a second through bore including a second annular groove,
    A cruciform having a pair of first trunnions and a pair of second trunnions,
    A pair of first bearing cups mounted to said first trunnion and positioned in said first through bore;
    A pair of second bearing cups mounted to said second trunnion and positioned in said second through bore;
    A universal joint comprising a retaining member located in the first annular groove and the second annular groove,
    Each of the retaining members includes a radially extending spring tab that biases the first bearing cup and the second bearing cup;
    The universal mandrel of the first yoke is aligned with the rotary mandrel of the second yoke.
    [5" claim-type="Currently amended] The universal joint of claim 4 wherein said spring tab biasesly engages end segments of said first and second bearing cups.
    [6" claim-type="Currently amended] 6. The universal joint of claim 5 wherein said retaining member includes a plurality of spring tabs extending radially converging from said outer ring.
    [7" claim-type="Currently amended] 7. The universal joint of claim 6 wherein said spring tab extends a predetermined distance beyond a plane defined by said first surface in view of the dimensional variation of the part.
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    同族专利:
    公开号 | 公开日
    DE60127008T2|2007-06-21|
    EP1122452A1|2001-08-08|
    EP1122452B1|2007-03-07|
    JP2001234943A|2001-08-31|
    US6280335B1|2001-08-28|
    KR100673672B1|2007-01-23|
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    BR0100820B1|2009-04-07|
    BR0100820A|2001-09-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2000-02-01|Priority to US09/496,255
    2000-02-01|Priority to US09/496,255
    2001-02-01|Application filed by 추후보정, 아메리칸 액슬 앤드 매뉴팩쳐링 인코포레이티드
    2001-08-20|Publication of KR20010078231A
    2007-01-23|Application granted
    2007-01-23|Publication of KR100673672B1
    优先权:
    申请号 | 申请日 | 专利标题
    US09/496,255|2000-02-01|
    US09/496,255|US6280335B1|2000-02-01|2000-02-01|Universal joint|
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