JPS60220225A - Isochronous universal joint - Google Patents
Isochronous universal jointInfo
- Publication number
- JPS60220225A JPS60220225A JP7803384A JP7803384A JPS60220225A JP S60220225 A JPS60220225 A JP S60220225A JP 7803384 A JP7803384 A JP 7803384A JP 7803384 A JP7803384 A JP 7803384A JP S60220225 A JPS60220225 A JP S60220225A
- Authority
- JP
- Japan
- Prior art keywords
- joint member
- ball groove
- ball
- curvature
- outer joint
- 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
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
- F16D3/224—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 sphere
- F16D3/2245—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 sphere where the groove centres are offset from the joint centre
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
【発明の詳細な説明】
イ、産業上の利用分野
この発明は、自動車の駆動力伝達軸等に利用される等速
自在継手に関するものである。DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application This invention relates to a constant velocity universal joint used for a driving force transmission shaft of an automobile, etc.
口、従来技術
本出願人はボール溝を冷間鍛造でアンダーカッＩ・なし
に加工できる製造の容易な等速自在継手を実；朗昭５４
−１１２３４３号（実開昭５６−２９３１９号公報）に
於いて提案している。この等速自在継手は、第５図に示
すように、凹球面（１ａ）及びこの凹球面（１ａ）に設
けた複数のボール溝（１ｂ）を有する外側継手部材（１
）と、外側継手部材（１）の凹球面（１ａ）に滑動可能
に嵌合する凸（２）
球面（４ａ）を外面に有し、内面に凹球面（４ｂ）を備
え、外内面を貫通ずる外側継手部材（１）のボール溝（
１ｂ）と同数のボールボケｙ ｌ・（４ｃ）を有するケ
ージ（４）と、ケージ（４）の凹球面（４ｂ）に滑動可
能に嵌合する凸球面（２ａ）及びこの凸球面（２ａ）に
外側継手部材（１）のボール５（１ｂ）と同数のボール
溝（２ｂ）を有する内側継手部材（２）と、外内両袖：
に部材（１）（２）のボール溝（Ｉｂ） （２ｂ）及び
ケージ（４）のボールポケット（４ｃ）に嵌合したボー
ル（３）とを備え、外内両継手部材（１）（２）のボー
ル溝（ｌｂ） （２ｂ） ノ曲率中心ＯＲ点、ＯＲ’点
を継手の軸線Ｘ−Ｘに平行な線−！−で継手の中心面Ｙ
−Ｙに対し軸方向に等距離だ目相反する側に偏心さ・Ｉ
、かつ、この偏心鞭を継手の中心面Ｙ−Ｙから外側継手
部材（］）の端面（１°）までの距１１ｔａと少なくと
も等しくし、また、ケージ（４）の外円球面（４ａ）
（４ｂ）の球面中心ａ、ａ＋ を継手の中心Ｏに対し軸
方向に同じ寸法ｆだけ相反する側に偏心さ・Ｕ、この外
内球面（３）
（４ａ） （４ｂ）を外側継手部材（１）（２＞の内外
球面（Ｉａ） （２ａ）に係合して外内両継手部材（１
）（２）を互いに軸方向に固定してなり、これらにより
ボール（３）を常に外内両継手部材（１）（２）の軸線
の２等分面、即ち、継手の中心面Ｙ−Ｙに保持するよう
にしたものである。1. Prior Art The present applicant has developed an easy-to-manufacture constant velocity universal joint in which the ball groove can be formed by cold forging without undercutting.
This is proposed in No. 112343 (Japanese Utility Model Application Publication No. 56-29319). As shown in FIG. 5, this constant velocity universal joint has an outer joint member (1) having a concave spherical surface (1a) and a plurality of ball grooves (1b) provided on this concave spherical surface (1a).
) and a convex (2) that slidably fits into the concave spherical surface (1a) of the outer joint member (1).The outer joint member (1) has a spherical surface (4a) on the outer surface, a concave spherical surface (4b) on the inner surface, and penetrates the outer inner surface. Ball groove of sliding outer joint member (1) (
A cage (4) having the same number of ball obscurities y l (4c) as 1b), a convex spherical surface (2a) that slidably fits into the concave spherical surface (4b) of the cage (4), and a convex spherical surface (2a) that An inner joint member (2) having the same number of ball grooves (2b) as balls 5 (1b) of the outer joint member (1), and both outer and inner sleeves:
and a ball (3) fitted in the ball groove (Ib) (2b) of the member (1) (2) and the ball pocket (4c) of the cage (4), and both the outer and inner joint members (1) (2). )'s ball groove (lb) (2b) - A line parallel to the joint's axis XX by connecting the center of curvature OR point and OR' point to the axis XX of the joint. − is the center plane of the joint Y
- Eccentricity on the opposite side of the eye at an equal distance in the axial direction with respect to Y・I
, and this eccentric whip is at least equal to the distance 11ta from the center plane Y-Y of the joint to the end surface (1°) of the outer joint member (]), and the outer spherical surface (4a) of the cage (4)
The spherical centers a and a+ of (4b) are eccentric to the opposite side in the axial direction by the same dimension f with respect to the joint center O, and the outer and inner spherical surfaces (3) (4a) (4b) are connected to the outer joint member ( 1) Engage with the inner and outer spherical surfaces (Ia) (2a) of (2>) to form both outer and inner joint members (1
) and (2) are fixed to each other in the axial direction, so that the ball (3) is always aligned in the bisecting plane of the axes of both the outer and inner joint members (1) and (2), that is, the center plane of the joint Y-Y. It was designed to be kept at .
ところで、この種の等速自在継手に於いて、第６図に示
すように、外内両継手部材（１）（２）が大きな作動角
（α）をとった場合、外側継手部材（１）の開口側に位
置するボール（３）は、ＯＲ，点を曲率中心とする外側
継手部材（１）のボール溝（Ｉｂ） ト、ＯＲ、°点を
曲率中心とする内側継手部材（２）のボール溝（２ｈ）
で保持され、継手に捩りトルクが負荷されると、ボール
（３）に外側継手部材（１）のボール溝（１ｂ）と内側
継手部材（２）のボール溝（２ｂ）より夫々法線力が負
荷され、その合力Ｆ１がケージ（４）に作用する。一方
、外側継手部材（１）の奥底側に位置するボール（３）
（４）
は、ＯＲ２点を曲率中心とする外側継手部材（１）のボ
ール溝（１ｂ）と、ＯＲ２’点を曲率中心とする内側継
手部材（２）のボール１ （２ｂ）で保持され、継手に
瑛りトルクが負荷されると、ボール（３）に外側継手部
材（１）のボール溝（１ｂ）と内側継手部材（２）のボ
ール溝（２ｈ）より夫々法線力が負荷され、その合力Ｆ
２がケージ（４）に作用する。By the way, in this type of constant velocity universal joint, as shown in FIG. 6, when both the outer and inner joint members (1) and (2) take a large operating angle (α), the outer joint member (1) The ball (3) located on the opening side of the ball groove (Ib) of the outer joint member (1) whose center of curvature is the point OR, Ball groove (2h)
When the joint is held in place and torsional torque is applied to the joint, normal forces are applied to the ball (3) from the ball groove (1b) of the outer joint member (1) and the ball groove (2b) of the inner joint member (2), respectively. The resultant force F1 acts on the cage (4). On the other hand, the ball (3) located at the bottom of the outer joint member (1)
(4) is held by the ball groove (1b) of the outer joint member (1) with the center of curvature at the OR2 point and the ball 1 (2b) of the inner joint member (2) with the center of curvature at the OR2' point, When a torque is applied to the joint, a normal force is applied to the ball (3) from the ball groove (1b) of the outer joint member (1) and the ball groove (2h) of the inner joint member (2), respectively. The resultant force F
2 acts on the cage (4).
ところが、外側継手部材（１）の開口側に位置するボー
ル（３）に生じる合力１？、と外側継手部材（１）の奥
底側に位置するボール（３）に生じる合力Ｆ２との方向
が逆である為、ケージ（４）に回転モーメントが作用し
、そのケージ（４）に作用する回転モーメントが大きく
なるに伴い、ボール（３）が継手の中心面Ｙ−Ｙより逸
脱しないように、外側継手部材（１）の凹球面（１ａ）
とケージ（４）の凸球面（４ａ）との間や内側継手ｆｌ
ｌｌ材（２）の凸球面（２ａ） とケージ（４）の凹球
面（４６）との間で働く摩擦力が増大して発熱が生じる
と云う不都合がある。However, the resultant force 1? generated on the ball (3) located on the opening side of the outer joint member (1)? Since the directions of , and the resultant force F2 generated on the ball (3) located at the deep side of the outer joint member (1) are opposite, a rotational moment acts on the cage (4) and acts on the cage (4). As the rotational moment increases, the concave spherical surface (1a) of the outer joint member (1) is designed to prevent the ball (3) from deviating from the center plane Y-Y of the joint.
and the convex spherical surface (4a) of the cage (4) or the inner joint fl
There is a disadvantage that the frictional force acting between the convex spherical surface (2a) of the ll material (2) and the concave spherical surface (46) of the cage (4) increases and heat generation occurs.
（５）
また、ケージ（４）に作用する回転モーメントけ、他の
ボール（３）に負荷を加え、ボール（３）と外内両継手
部材（１）（２）のボール＃ （ｌｂ） （ｌｂ）との
接触力が増し、耐久性が低下すると云う不都合が生じる
。(5) Also, the rotational moment acting on the cage (4) applies a load to the other balls (3), and the balls # (lb) of the balls (3) and the outer and inner joint members (1) and (2) The contact force with lb) increases, resulting in a disadvantage of decreased durability.
ハ０発明の目的
この発明は、ボール溝の加工が容易で、運転中の発熱を
抑え、高寿命を得ることのできる等速自在継手を提供せ
んとするものである。OBJECT OF THE INVENTION The present invention aims to provide a constant velocity universal joint that allows easy machining of ball grooves, suppresses heat generation during operation, and provides a long service life.
二１発明の構成
この発明は、凹球面及びこの凹球面に設けた複数のボー
ル溝を有する外側継手部材と、外側継手部材の凹球面に
滑動可能に嵌合する凸球面を外面に有し、内面に凹球面
を備え、外内面を貫通ずる外１１１１継手部材のボール
溝と同数のボールポケットを有するケージと、ケージの
凹球面に滑動可能に嵌合する凸球面及びこの凸球面に外
側継手部材のボール溝と同数のボール溝を有する内側継
手部材と、外内両継手部材のボール溝及びケージのボー
ルポケットに嵌合したボー（６）
ルとからなり、外内内継手部材に設けられたボール溝の
曲率中心を継手の軸線に平行な線−にで継手の中心面に
対して軸方向に等距離だけ相反する側に偏心させ、かつ
、該偏心距離が継手の中心面から外側継手部材の端面ま
での距離に少なくとも等しい等速自在継手に於いて、前
記外側継手部材に設けられたボール溝の奥底側を、その
開口側ボール溝の曲率半径より小さい曲率半径で形成す
ると共に、内側継手部材に設けられたボール溝の開口側
を、継手の中心面に対して前記外側継手部材の奥底側ボ
ール溝の曲率中心と対称位置に曲率中心を持つように形
成さゼたものである。21 Structure of the Invention This invention has an outer joint member having a concave spherical surface and a plurality of ball grooves provided on the concave spherical surface, and a convex spherical surface on the outer surface that slidably fits into the concave spherical surface of the outer joint member, A cage having a concave spherical surface on its inner surface and having the same number of ball pockets as the ball grooves of the outer joint member passing through the outer surface, a convex spherical surface that slidably fits into the concave spherical surface of the cage, and an outer joint member on the convex spherical surface. It consists of an inner joint member having the same number of ball grooves as the ball grooves of the outer and inner joint members, and a ball (6) that fits into the ball grooves of both the outer and inner joint members and the ball pocket of the cage. The center of curvature of the ball groove is eccentric to the opposite side by an equal distance in the axial direction from the center plane of the joint along a line parallel to the axis of the joint, and the eccentric distance is from the center plane of the joint to the outer joint member. In a constant velocity universal joint that is at least equal to the distance to the end face of the outer joint member, the bottom side of the ball groove provided in the outer joint member is formed with a radius of curvature smaller than the radius of curvature of the opening side ball groove, and the inner joint member The opening side of the ball groove provided in the member is formed to have a center of curvature at a position symmetrical to the center of curvature of the ball groove on the deep side of the outer joint member with respect to the center plane of the joint.
ホ、実施例
第１図はこの発明に係る等速自在継手の実施例を示す要
部の縦断面図で、（ｌＯ）は外側継手部材、（２０）は
内側継手部材、（３０）はボール、（４０）はケージを
夫々示している。E. Embodiment FIG. 1 is a longitudinal sectional view of the main parts showing an embodiment of the constant velocity universal joint according to the present invention, (lO) is the outer joint member, (20) is the inner joint member, and (30) is the ball. , (40) indicate the cages, respectively.
外側継手部材（１０）と内ｆｆＪ 継手部材（２０）と
には、夫々複数個のボール溝（１１） （２１）が円（
７）
周等配位置に対向させて設けてあり、これらのボール溝
＜１１） （２１）は継手の軸線Ｘ−Ｘに沿って円弧状
に延びている。The outer joint member (10) and the inner ffJ joint member (20) each have a plurality of ball grooves (11) and (21) shaped like circles (
7) These ball grooves <11) (21) are provided to face each other at equidistant positions on the circumference, and extend in an arc shape along the axis XX of the joint.
即ち、外側継手部材（１０）のボールｍ （１１）は、
ＯＲ点に曲率中心を持つ円弧状の開口側ボール溝（ｌｌ
ａ ）と、Ａ点に曲率中心を持つ円弧状の奥底側ボール
溝（ｌｌｂ ）とを同一接線で結合して形成され、また
、内側継手部材（２０）のボール溝（２１）は、ＯＲ’
点に曲率中心を持つ円弧状の奥底側ボール溝（２１ａ
） と、Ａ°点に曲率中心を持つ円弧状の開口側ボール
溝（２１ｂ ）とを同一接線で結合して形成されている
。That is, the ball m (11) of the outer joint member (10) is
An arc-shaped opening-side ball groove with a center of curvature at the OR point (ll
a) and an arcuate inner ball groove (llb) having a center of curvature at point A, which are connected on the same tangent line, and the ball groove (21) of the inner joint member (20) is
An arcuate inner ball groove (21a) with a center of curvature at a point.
) and an arc-shaped opening-side ball groove (21b) having a center of curvature at point A° are connected by the same tangent.
外側継手部材（１０）の開口側ボール溝（ｌｌａ ）及
び内側継手部材（２０）の奥底側ボール溝（２１ａ ）
の曲率中心ＯＲ，ＯＲ’ は、継手の軸線Ｘ−Ｘに対し
て平行な線ｘｌ−ｘ、上で、継手の中心面Ｙ−Ｙに対し
て軸方向に同じ距離（ｅＲ）だけ相反する側に偏心させ
、かつ、該偏心距離（ｅＲ）が継手の中心Ｏから外側継
手部材（１０）の端面（１０″）までの距離と少なくと
も等しくしてあ（８）
また、外側継手Ｉｔｓ材（ｌＯ）の奥底側ボール溝（１
１ｂ）及び内側継手部材（２０）の開口側ボール溝（２
１ｂ ）の曲率中心Ａ、Ａ’ は、継手の軸線Ｘ−Ｘ上
で、継手の中心０に対して等距離だけ相反する側に偏心
させである。Opening side ball groove (lla) of the outer joint member (10) and bottom side ball groove (21a) of the inner joint member (20)
The centers of curvature OR and OR' are opposite sides of the same distance (eR) in the axial direction from the center plane Y-Y of the joint on the line and the eccentric distance (eR) is at least equal to the distance from the center O of the joint to the end surface (10'') of the outer joint member (10) (8). ) in the deep ball groove (1
1b) and the opening side ball groove (2) of the inner joint member (20).
The centers of curvature A and A' in 1b) are eccentric to opposite sides by an equal distance from the center 0 of the joint on the axis XX of the joint.
一万、ケージ（４０）は継手の軸線Ｘ−Ｘ上で、継手の
中心に対して等距離だけ相反する側に偏心する点ａ、ａ
’ に曲率中心を持つ凸球面（４１）及び凹球面（４２
）を有し、これと対応して同じく偏心して外側継手部材
（１０）及び内側継手部材（２０）に凹球面（１２）及
び凸球面（２２）が設けられており１、これらを球面接
触させて組合わせている。また、ケージ（４０）は外内
面を貫通するボールポケット（４３）を、外内内継手部
材（１０） （２０）のボール溝（１１） （２１）に
対応させて同数だけ設けている。10,000, the cage (40) is located on the joint axis X-X at points a, a, which are eccentric to opposite sides by an equal distance from the center of the joint.
A convex spherical surface (41) and a concave spherical surface (42
), and correspondingly, a concave spherical surface (12) and a convex spherical surface (22) are provided eccentrically on the outer joint member (10) and the inner joint member (20) 1, and these are brought into spherical contact. It's a combination. Further, the cage (40) is provided with the same number of ball pockets (43) passing through the outer and inner surfaces, corresponding to the ball grooves (11) and (21) of the outer and inner joint members (10) and (20).
そして、ボール（３０）は外内両継手部１１４’ （１
０）（２０）の夫々のボール溝（１１） （２０）及び
ケージ（４０）のボールポケット（４３）に夫々１１固
ず（９）
つ嵌合され、トルクを内側継手部材（１０）（２０）に
伝達する。The ball (30) is attached to both the outer and inner joint portions 114' (1
0) (20) and the ball pocket (43) of the cage (40), respectively, and the torque is applied to the inner joint members (10) (20). ).
以上の構造により、ボール（３０）は外内両継手部４ｔ
（１０） （２０）がどのような作動角をとる時でも
、外内内継手部材（１０） （２０）の軸線ｘ−ｘ、
ｘ’−ｘ’の２等分面、即ち、継手の中心面Ｙ−Ｙに保
持される。With the above structure, the ball (30) has both the outer and inner joint parts 4t.
(10) No matter what operating angle (20) takes, the axis x-x of the outer and inner joint members (10) (20),
It is held in the bisecting plane of x'-x', that is, the center plane Y-Y of the joint.
そして、第２図に示すように、外内内継手部材（１０）
（２Ｑ）が大きな作動角（α）をとった場合、外側継
手部材（１０）の開口側に位置するボール（３０）に負
荷される法線力の合力Ｆ１ば従来と同様である。一方、
外側継手部材（ｌＯ）の奥底側に位置するボール（３０
）は、Ａ点を曲率中心とする外側継手部材（１０）の奥
底側ボール溝（ｌｌｂ ）と、へ°点を曲率中心とする
内側継手部材（２０）の開口側ボール溝（２１ｂ ）と
で保持され、継手に捩りトルクが負荷されると、外側継
手部材（１０）の奥底側ボール溝（ｌｌｂ ）と内側継
手部材（２０）の開口側ボール１ （２１ｂ ）より夫
々法線力が負荷され、その合力Ｆ２がゲ（１０）
−ジ（４０）に作用する。この時、外側継手部材（ｌＯ
〉の奥底側に位置するボール（３０）に生じる合力Ｆ２
は、外側継手部材（１０）の奥底側ボール（ｌｌｂ ）
の曲率中心Ａ点が継手の中心ｉｈｉ Ｙ−Ｙより外側継
手部材（］０）の開口側に位置し、また、内側継手部材
（２０）の開口側ボール溝（２１ｂ ）の曲率中心Ａ°
点が継手の中心面Ｙ−Ｙより外側継手部材（１０）の奥
底側に位置する為、その方向は外側継手部材（１０）の
開口１１１１に位置するボール（３０）に生しる合力Ｆ
１の方向と同じとなる。これにより、合力Ｆ１と合力Ｆ
２は相殺され、ケージ（４０）に作用する回転モーメン
トは小さくなる。Then, as shown in FIG. 2, the outer and inner joint members (10)
When (2Q) takes a large operating angle (α), the resultant force F1 of the normal force applied to the ball (30) located on the opening side of the outer joint member (10) is the same as in the conventional case. on the other hand,
The ball (30
) is the inner ball groove (llb) of the outer joint member (10) whose center of curvature is at point A, and the open ball groove (21b) of the inner joint member (20) whose center of curvature is at point A. When the joint is held and a torsional torque is applied to the joint, a normal force is applied from the inner ball groove (llb) of the outer joint member (10) and the opening ball 1 (21b) of the inner joint member (20), respectively. , the resultant force F2 acts on Ge (10) - Ge (40). At this time, the outer joint member (lO
The resultant force F2 generated on the ball (30) located on the deep side of
is the inner ball (llb) of the outer joint member (10)
The center of curvature A point is located on the opening side of the outer joint member (]0) from the joint center ihi Y-Y, and the center of curvature A° of the opening side ball groove (21b) of the inner joint member (20)
Since the point is located on the deeper side of the outer joint member (10) than the center plane Y-Y of the joint, the direction is the resultant force F generated on the ball (30) located at the opening 1111 of the outer joint member (10).
The direction is the same as 1. As a result, the resultant force F1 and the resultant force F
2 cancel each other out, and the rotational moment acting on the cage (40) becomes smaller.
第３図はこの発明に係る等速自在継手の他の実施例を示
す要部縦断面図で、外側継手部材（１０）の奥底側ボー
ル溝（ｌｌｂ ）及び内側継手部材（２０）の開口側ボ
ール溝（２１ｂ ）の曲率中心Ａ、Ａ’ を、継手の軸
線Ｘ−Ｘより外側継手部材（１０）の開口側ボール溝（
ｌｌａ ）及び内側継手部材（２０）の奥底側ボール溝
（２１ａ ）の曲（１１）
率中心ＯＲ点、ＯＲ’点と同方向に離れて位置さ・ｕ、
継手の軸１１ ｘ −ｘに対して平行な線Ｘ２−ｘ２上
で、継手の中心面Ｙ−Ｙに対して軸方向に同じ距離（ｅ
＾）だけ相反する側に偏心さゼたものであり、第４図に
示すように、外側継手部材（１０） （２０）が大きな
作動角（α）をとった場合、第１の実施例と同様に外側
継手部材（１０）の奥底側に位置するボール（３０）に
生じる合力Ｆ２は、外側継手部材（１０）の開口側に位
置するボール（３０）に生じる合力Ｆ１と同方向に作用
するようになり、ケージ（４０）に作用する回転モーメ
ントは小さくなる。FIG. 3 is a vertical cross-sectional view of main parts showing another embodiment of the constant velocity universal joint according to the present invention, showing the deep ball groove (llb) of the outer joint member (10) and the opening side of the inner joint member (20). The centers of curvature A, A' of the ball groove (21b) are located on the opening side of the ball groove (10) on the outside of the joint member (10) from the joint axis
lla ) and the curve (11) of the bottom side ball groove (21a) of the inner joint member (20), which are located apart in the same direction as the ratio center OR point and OR' point.
The same distance (e
As shown in Fig. 4, when the outer joint members (10) and (20) take a large operating angle (α), Similarly, the resultant force F2 generated on the ball (30) located on the deep side of the outer joint member (10) acts in the same direction as the resultant force F1 generated on the ball (30) located on the opening side of the outer joint member (10). As a result, the rotational moment acting on the cage (40) becomes smaller.
以上この発明の各実施例について説明したが、この発明
はこれに限定されるものではなく、ＯＲ，ＯＲ”点に曲
率中心をもつ外側継手部材（１０）の開口側ボール溝（
ｌｌａ ）及び内側継手部材（２０）の奥底側ボールＩ
ｌｌ （２１ａ ）と、Ａ１Ａ′点に曲率中心を持つ外
側継手部材（１０）の奥底側ボール溝（ｌｌｂ ）及び
内側継手部材（２０）の開口側ボールｌ （２１ｂ ）
とを直線状或いは円（１２）
弧状等の中間ボール溝で結合させてボール溝（１１）
（２１）を形成させても良い。Although each embodiment of the present invention has been described above, the present invention is not limited thereto, and the opening side ball groove (
) and the inner ball I of the inner joint member (20)
ll (21a), the deep ball groove (llb) of the outer joint member (10) with the center of curvature at point A1A', and the opening side ball l (21b) of the inner joint member (20).
A ball groove (11) is formed by connecting them with a straight or circular intermediate ball groove (12) or an arcuate intermediate ball groove.
(21) may also be formed.
へ８発明の詳細
な説明したこの発明の等速自在継手は、外側継手部材の
奥底側ボール溝及び内側継手部材の開口側ボール溝の曲
率半径を外側継手部材の開口側ボール溝及び内側継手部
材の奥底側ボール溝の曲率半径より、小さくしたので、
ケージに作用する回転モーメントを小さくでき、外側継
手部材とケージとの間に働く摩擦力を減少させて発熱を
抑え、かつ、ボール等に負荷される余分な力を減少させ
て、耐久性を向上させる効果があると共に、冷間鍛造の
みでボール溝の加工が可能であると云う従来からの効果
を損なわない。In the constant velocity universal joint of the present invention described in detail in Section 8, the radius of curvature of the deep ball groove of the outer joint member and the opening ball groove of the inner joint member is the same as that of the opening ball groove of the outer joint member and the inner joint member. The radius of curvature was made smaller than the radius of curvature of the ball groove on the deep side of the
The rotational moment acting on the cage can be reduced, the frictional force acting between the outer joint member and the cage can be reduced, suppressing heat generation, and the extra force applied to balls etc. can be reduced, improving durability. In addition to this, the conventional effect of being able to form ball grooves only by cold forging is not impaired.
第１図はこの発明の等速自在継手の実施例の縦断面図、
第２図はその作動状態時の縦断面図、第３図はこの発明
の他の実施例の縦断面図、第４図はその作動状態時の縦
断面図、第５図は（１３）
従来の等速自在継手の縦断面図、第６図はその作動状態
時の縦断面図である。
（１０）−−・外側継手部材、（１１）−ボール溝、（
ｌｌａ ） −開口側ボール溝、（ｌｌｂ ）−奥底側
ボール溝、（１２）−外側継手部材凹球面、（２ｏ）−
・内側継手部材、（２１）−ボール溝、（２１ａ ）−
奥底側ボール溝、（２１ｂ ） −関口側ボール、（２
２）・−内側継手部材凸球面、（３０）−ボール、（４
０）−ケージ、（４１）・−ケージ凸球面、（４２）−
一ケージ凹球面、（４３） −ボールボヶソＩ・。
ｌ１図
１２図
第８図
第４図
第５図
１！１６ｆFIG. 1 is a longitudinal sectional view of an embodiment of the constant velocity universal joint of the present invention,
FIG. 2 is a longitudinal cross-sectional view of another embodiment of the present invention, FIG. 4 is a longitudinal cross-sectional view of another embodiment of the invention, and FIG. 5 is a vertical cross-sectional view of another embodiment of the invention. FIG. 6 is a longitudinal sectional view of the constant velocity universal joint in its operating state. (10)--Outer joint member, (11)-Ball groove, (
lla) - Opening side ball groove, (llb) - Bottom side ball groove, (12) - Outer joint member concave spherical surface, (2o) -
・Inner joint member, (21)-ball groove, (21a)-
Bottom side ball groove, (21b) - Sekiguchi side ball, (2
2)・-Inner joint member convex spherical surface, (30)-ball, (4
0)-cage, (41)・-cage convex spherical surface, (42)-
One-cage concave spherical surface, (43) - ball bogus I. l1 Figure 12 Figure 8 Figure 4 Figure 5 1!16f
Claims (1)
を有する外側継手部材と、外（１’Ｊ継手部材の凹球面
に滑動可能に嵌合する凸球面を外面に有し、内面に凹球
面を備え、列内面を貫通ずる外側継手部材のボール溝と
同数のポールポケットを有するケージと、ケージの凹球
面に滑動可能に嵌合する凸球面及びこの凸球面に外側継
手部材のボール溝と同数のボール溝を有する内側継手部
材と、外側継手部材のボール溝及びケージのポールポケ
ットに嵌合したボールとからなり、外側継手部材に設け
られたボール溝の曲率中心を継手の軸線に平行な線１−
で継手の中心面に対して軸方向に等距離だけ相反する側
に偏心させ、かつ、該偏心距離が継手の中心面から外側
継手部材の端面までの距離に少なくとも等しい等速自在
継手に於いて、前記外側継手部（１） 材に設けられたボール溝の奥底側を、その開口側ボール
溝の曲率半径より小さい曲率半径で形成すると共に、前
記内側継手部材に設けられたボール溝の開口側を、継手
の中心面に対して前記外側継手部材の奥底側ボール溝の
曲率中心と対称位置に曲率中心を持つように形成したこ
とを特徴とする等速自在継手。(1) An outer joint member having a concave spherical surface and a plurality of ball grooves provided on the concave spherical surface; A cage having a concave spherical surface and having the same number of pole pockets as the ball grooves of the outer joint member passing through the inner surface of the row, a convex spherical surface that slidably fits into the concave spherical surface of the cage, and a ball groove of the outer joint member in the convex spherical surface. The center of curvature of the ball groove provided in the outer joint member is parallel to the axis of the joint. Line 1-
In a constant velocity universal joint, the joint is eccentric to the opposite side by an equal distance in the axial direction with respect to the center plane of the joint, and the eccentric distance is at least equal to the distance from the center plane of the joint to the end surface of the outer joint member. , the inner side of the ball groove provided in the outer joint member (1) is formed with a radius of curvature smaller than the radius of curvature of the ball groove on the opening side thereof, and the opening side of the ball groove provided in the inner joint member A constant velocity universal joint, characterized in that the center of curvature is formed at a position symmetrical to the center of curvature of the deep ball groove of the outer joint member with respect to the center plane of the joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7803384A JPS60220225A (en) | 1984-04-17 | 1984-04-17 | Isochronous universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7803384A JPS60220225A (en) | 1984-04-17 | 1984-04-17 | Isochronous universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60220225A true JPS60220225A (en) | 1985-11-02 |
Family
ID=13650496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7803384A Pending JPS60220225A (en) | 1984-04-17 | 1984-04-17 | Isochronous universal joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60220225A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2592294A1 (en) * | 2011-11-08 | 2013-05-15 | Hyundai Wia Corporation | Angled offset ball type constant velocity joint for vehicle |
| US8852005B2 (en) | 2011-11-09 | 2014-10-07 | Hyundai Wia Corporation | Angled offset ball type constant velocity joint for vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5622026U (en) * | 1979-07-30 | 1981-02-27 | ||
| JPS5830030B2 (en) * | 1976-06-17 | 1983-06-27 | 旭化成株式会社 | Fermentation method and fermentation equipment |
-
1984
- 1984-04-17 JP JP7803384A patent/JPS60220225A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5830030B2 (en) * | 1976-06-17 | 1983-06-27 | 旭化成株式会社 | Fermentation method and fermentation equipment |
| JPS5622026U (en) * | 1979-07-30 | 1981-02-27 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2592294A1 (en) * | 2011-11-08 | 2013-05-15 | Hyundai Wia Corporation | Angled offset ball type constant velocity joint for vehicle |
| US8852005B2 (en) | 2011-11-09 | 2014-10-07 | Hyundai Wia Corporation | Angled offset ball type constant velocity joint for vehicle |
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