JPH02129408A - Constant velocity joint - Google Patents

Constant velocity joint

Info

Publication number
JPH02129408A
JPH02129408A JP28286888A JP28286888A JPH02129408A JP H02129408 A JPH02129408 A JP H02129408A JP 28286888 A JP28286888 A JP 28286888A JP 28286888 A JP28286888 A JP 28286888A JP H02129408 A JPH02129408 A JP H02129408A
Authority
JP
Japan
Prior art keywords
ball
cage
outer joint
ball holding
connecting member
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.)
Pending
Application number
JP28286888A
Other languages
Japanese (ja)
Inventor
Makoto Okada
誠 岡田
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.)
Toyoda Koki KK
Original Assignee
Toyoda Koki KK
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 Toyoda Koki KK filed Critical Toyoda Koki KK
Priority to JP28286888A priority Critical patent/JPH02129408A/en
Publication of JPH02129408A publication Critical patent/JPH02129408A/en
Pending legal-status Critical Current

Links

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • F16D3/226—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a cylinder co-axial with the respective coupling part
    • F16D3/227—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a cylinder co-axial with the respective coupling part the joints being telescopic
    • 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
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/10—Surface characteristics; Details related to material surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

PURPOSE:To prevent an occurrence of vibration and noise by forming a chamfer part on a surface, which is situated on both sides in the circumferential direction of a ball groove of an outer connecting member and which faces the corresponding ball holding windows. CONSTITUTION:A plurality of ball holding windows 21 are formed on a cage 18 at an equal angular interval on the circumference, so that a ball 22 for torque transmission is held by the ball holding window 21. The ball 22 is engaged with ball grooves 13 and 17 of inner and outer connecting members 11 and 15, respectively. A straight-line-shaped chamfer part 23, which links ball grooves 17 neighbring with each other, is formed on both sides in the circumferential direction of the outer connecting member 15, so that the cage 18 is supported through a point contact at a position where the ball holding window 21 does not face the outer connecting member 15. With this constitution, even when the inner connecting member 11 slides, the ball holding window 21 does not touch the edge parts on both sides of the ball groove 17. Therefore, sliding resistance of the joint can be reduced, and at the same time an occurrence of both vibration and noise can be prevented.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、等速ジヨイントに関するものである。[Detailed description of the invention] <Industrial application field> The present invention relates to a constant velocity joint.

〈従来の技術〉 従来この種の等速ジヨイントにおいては、内外両継手部
材間にケージを嵌合し、このケージのボール保持窓にト
ルク伝達ボールを保持する構造となっている。<Prior Art> Conventionally, this type of constant velocity joint has a structure in which a cage is fitted between the inner and outer joint members, and a torque transmission ball is held in a ball holding window of the cage.

〈発明が解決しよ・うとする課題〉 このものにおいては、第４図および第５図に示すように
、ケージ１のケージ窓２の幅が広いため、内外両継手部
材３がスライドした場合には、トルク伝達ボール７を保
持するケージ窓２と外方継手部材４のボール溝５のエツ
ジ部６が当接してしまい、このエツジ部６の当接が大き
な抵抗となり、この等速ジヨイントを動力伝達系に使用
した場合には、振動、騒音が生じたりする恐れがあった
。<Problems to be Solved by the Invention> In this device, as shown in FIGS. 4 and 5, since the cage window 2 of the cage 1 is wide, when both the inner and outer joint members 3 slide, In this case, the edge portion 6 of the ball groove 5 of the outer joint member 4 comes into contact with the cage window 2 that holds the torque transmission ball 7, and this contact of the edge portion 6 creates a large resistance, causing the constant velocity joint to become unpowered. When used in a transmission system, there is a risk of vibration and noise being generated.

く課題を解決するだめの手段〉 本発明は、」二連した問題点を解決するためになされた
もので、外方継手部材のボール溝の円周方向両側部の前
記ボール保持窓と対向する面に面取部を形成したもので
ある。Means for Solving the Problems> The present invention has been made in order to solve two consecutive problems. A chamfered portion is formed on the surface.

く作用〉 面取部により、外方継手部材とボール保持窓との当接を
防止し、スライド抵抗を低減させる。Effect> The chamfer prevents contact between the outer joint member and the ball holding window, reducing sliding resistance.

〈実施例〉 以下本発明の実施例を図面に基づいて説明する。<Example> Embodiments of the present invention will be described below based on the drawings.

第２図において、１０は被動輪を示し、この被動軸ＩＯ
の一端には内外両継手部材１１がスプライン係合されて
いる。この内外両継手部材１１の外周は被動軸１０の軸
心上の点０１を曲率中心とする突球面１２に形成され、
この突球面１２の円周上には複数（６つ）のボール溝１
３が軸方向に沿って形成されている。In FIG. 2, 10 indicates a driven wheel, and this driven shaft IO
Both inner and outer joint members 11 are spline engaged with one end. The outer periphery of both the inner and outer joint members 11 is formed into a convex spherical surface 12 whose center of curvature is a point 01 on the axis of the driven shaft 10,
A plurality (six) ball grooves 1 are provided on the circumference of this convex spherical surface 12.
3 is formed along the axial direction.

１４は駆動軸を示し、この駆動軸１４の一端には円筒状
の外方継手部材１５が形成され、この外方継手部材１５
の内周面１６には前記内外両継手部材１１の各ボール溝
１３にそれぞれ対応する複数のボール溝１７が軸方向に
沿って形成されている。Reference numeral 14 indicates a drive shaft, and a cylindrical outer joint member 15 is formed at one end of this drive shaft 14.
A plurality of ball grooves 17 corresponding to the respective ball grooves 13 of the inner and outer joint members 11 are formed along the axial direction on the inner circumferential surface 16 of the inner and outer joint members 11 .

１８は内方および外方継手部材１１．１５の間に介在さ
れたケージで、このケージ１８の外周は外方継手部材１
５の内周面１６にスライド可能に嵌合する部分突球面１
９を備えた截頭円錐状をなし、その突球面１９の曲率中
心は前記被動軸１０の軸心上に位置し、かつ前記点０１
から一定距離隔てられた点０２となっている。またケー
ジ１Ｂの内周は内外両継手部材１１の突球面１２に合致
嵌合する凹球面２０に形成されており、両者の嵌め合い
は隙間嵌合となっている。18 is a cage interposed between the inner and outer joint members 11.15, and the outer periphery of this cage 18 is the outer joint member 1.
Partially convex spherical surface 1 that slidably fits into the inner circumferential surface 16 of 5.
9, the center of curvature of the convex spherical surface 19 is located on the axis of the driven shaft 10, and the point 01
Point 02 is located a certain distance away from the point 02. Further, the inner periphery of the cage 1B is formed into a concave spherical surface 20 that fits into the convex spherical surface 12 of both the inner and outer joint members 11, and the fit between the two is a clearance fit.

前記ケージ１８には、第１図に示すように、円周上等角
度間隔に複数（６つ）のボール保持窓２１が形成され、
これらボール保持窓２１にトルク伝達用のボール２２が
保持され、これらボール２２は前記内方および外方継手
部材１１．１５の両ボール溝１３．１７に係合されてい
る。As shown in FIG. 1, the cage 18 has a plurality (six) ball holding windows 21 formed at equal angular intervals on the circumference.
Torque transmitting balls 22 are held in these ball holding windows 21, and these balls 22 are engaged in both ball grooves 13.17 of the inner and outer joint members 11.15.

前記外方継手部材１５のボール溝１７の円周方向両側に
は、第１図に示すように、隣接するボール溝１７間を結
ぶ直線状の面取部２３が形成され、ケージ１８はボール
保持窓２１と外方継手部材１５が対向しない位置で点接
触により支持されるようになっている。As shown in FIG. 1, linear chamfered portions 23 connecting adjacent ball grooves 17 are formed on both circumferential sides of the ball grooves 17 of the outer joint member 15, and the cage 18 holds the balls. The window 21 and the outer joint member 15 are supported by point contact at positions where they do not face each other.

以上の構成により、内外両継手部材１１がスライドして
も、ボール保持窓２１とボール溝１７の両側のエツジ部
が当接しないので、継手のスライド抵抗は大きくならな
い。With the above configuration, even if both the inner and outer joint members 11 slide, the edge portions on both sides of the ball holding window 21 and the ball groove 17 do not come into contact with each other, so that the sliding resistance of the joint does not increase.

なお、この実施例では、面取部の形状が直線状のものに
ついて述べたが、この面取部の断面形状は、第３図（ａ
）〜（Ｃ）に示すように、隣接するボール溝間に外方継
手部材の内径ｒよりも大きい円弧Ｒ１、あるいは外方継
手部材の内周の接線りよりも所定角度αのテーパ、ボー
ル溝の両側面に外方継手部材の内径Ｒ１よりも径の小さ
い円弧Ｒ２にしても良い。In this embodiment, the chamfered portion has a linear shape, but the cross-sectional shape of this chamfered portion is shown in Fig. 3 (a).
) to (C), there is a circular arc R1 larger than the inner diameter r of the outer joint member between the adjacent ball grooves, or a taper or ball groove of a predetermined angle α than the tangent to the inner circumference of the outer joint member. An arc R2 having a smaller diameter than the inner diameter R1 of the outer joint member may be formed on both sides of the outer joint member.

〈発明の効果〉 上記詳述したように本発明は、外方継手部材のボール溝
の円周方向両側部の前記ボール保持窓と対向する面に面
取部を形成したので、内外両継手部材のスライド時にお
けるスライド抵抗を低減できる利点がある。<Effects of the Invention> As detailed above, in the present invention, chamfered portions are formed on the surfaces facing the ball holding windows on both circumferential sides of the ball groove of the outer joint member. This has the advantage of reducing sliding resistance during sliding.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の実施例を示す第２図のＩ−Ｉ線に沿っ
た等速ジヨイントの断面図、第２図は等速ジヨイントの
縦断面図、第３図は他の面取部の形状例を説明するため
の図、第４図は従来の等速ジョインを示す断面図、第５
図は第４図のＶ−■である。 １１・・・内外両継手部材、１５・・・外方継手部材、
１７・・・ボール溝、１８・・・ケージ、２１・・・ボ
ール保持窓、２２・・・ボール、２３・・・面取部。Fig. 1 is a sectional view of a constant velocity joint taken along line I-I in Fig. 2 showing an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of the constant velocity joint, and Fig. 3 is a cross-sectional view of another chamfered portion. Figure 4 is a cross-sectional view showing a conventional constant velocity join, Figure 5 is a diagram for explaining an example of the shape of
The figure is V-■ in FIG. 4. 11...Both inner and outer joint members, 15...Outer joint members,
17... Ball groove, 18... Cage, 21... Ball holding window, 22... Ball, 23... Chamfered portion.

Claims (1)

【特許請求の範囲】[Claims] （１）相交わる２軸の一方に内方継手部材を設け、他方
に外方継手部材を設け、これら内外両継手部材に形成さ
れたボール溝間にケージを嵌合し、このケージのボール
保持窓にトルク伝達ボールを保持した等速ジョイントに
おいて、前記外方継手部材のボール溝の円周方向両側部
の前記ボール保持窓と対向する面に面取部を形成したこ
とを特徴とする等速ジョイント。(1) An inner joint member is provided on one side of the two intersecting shafts, an outer joint member is provided on the other side, a cage is fitted between the ball grooves formed in both the inner and outer joint members, and the cage holds the balls. A constant velocity joint in which a torque transmission ball is held in a window, characterized in that a chamfered portion is formed on a surface facing the ball holding window on both circumferential sides of the ball groove of the outer joint member. Joint.
JP28286888A 1988-11-09 1988-11-09 Constant velocity joint Pending JPH02129408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28286888A JPH02129408A (en) 1988-11-09 1988-11-09 Constant velocity joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28286888A JPH02129408A (en) 1988-11-09 1988-11-09 Constant velocity joint

Publications (1)

Publication Number Publication Date
JPH02129408A true JPH02129408A (en) 1990-05-17

Family

ID=17658128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28286888A Pending JPH02129408A (en) 1988-11-09 1988-11-09 Constant velocity joint

Country Status (1)

Country Link
JP (1) JPH02129408A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011142375A1 (en) * 2010-05-13 2011-11-17 Ntn株式会社 Sliding-type constant-velocity universal joint

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011142375A1 (en) * 2010-05-13 2011-11-17 Ntn株式会社 Sliding-type constant-velocity universal joint

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