JP3702019B2 - Fixed constant velocity joint - Google Patents

Fixed constant velocity joint Download PDF

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Publication number
JP3702019B2
JP3702019B2 JP33934595A JP33934595A JP3702019B2 JP 3702019 B2 JP3702019 B2 JP 3702019B2 JP 33934595 A JP33934595 A JP 33934595A JP 33934595 A JP33934595 A JP 33934595A JP 3702019 B2 JP3702019 B2 JP 3702019B2
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JP
Japan
Prior art keywords
pocket
ball
cage
outer ring
pockets
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.)
Expired - Lifetime
Application number
JP33934595A
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Japanese (ja)
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JPH09177814A (en
Inventor
啓助 曽根
和彦 穂積
佳久 兼子
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NTN Corp
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NTN Corp
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Filing date
Publication date
Priority to JP33934595A priority Critical patent/JP3702019B2/en
Application filed by NTN Corp filed Critical NTN Corp
Priority to EP02003007A priority patent/EP1209373B1/en
Priority to US08/860,719 priority patent/US6120382A/en
Priority to CN 200510078655 priority patent/CN1755154A/en
Priority to DE69623439T priority patent/DE69623439T3/en
Priority to PCT/JP1996/003702 priority patent/WO1997024538A1/en
Priority to AU11711/97A priority patent/AU714553B2/en
Priority to DE69636727T priority patent/DE69636727T2/en
Priority to EP96942575A priority patent/EP0802341B2/en
Priority to EP02003004A priority patent/EP1209372B1/en
Priority to KR1019970705290A priority patent/KR100472985B1/en
Priority to CN96192137A priority patent/CN1087817C/en
Priority to DE69636726T priority patent/DE69636726T2/en
Publication of JPH09177814A publication Critical patent/JPH09177814A/en
Priority to US09/500,649 priority patent/US6267682B1/en
Priority to US09/500,532 priority patent/US6386983B1/en
Priority to CNB021015333A priority patent/CN1260487C/en
Application granted granted Critical
Publication of JP3702019B2 publication Critical patent/JP3702019B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • F16D2003/22303—Details of ball cages
    • 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
    • F16D2300/12—Mounting or assembling

Description

【０００１】
【発明の属する技術分野】
この発明は、固定式の等速ジョイントに関するものである。
【０００２】
【従来の技術】
図５に示すように、外輪１の球形内面２に曲線状のボール溝３を形成し、内輪４の球形外面５に曲線状のボール溝６を設け、外輪ボール溝３と内輪ボール溝６間にボール７を組込み、外輪１と内輪４との間に組込まれたケージ８に上記ボール７を収容するポケット９を設けた固定式の等速ジョイントには、ボール７の数を複数個とする数種のものがある。
【０００３】
ここで、ボール数が、例えば８つの等速ジョイントにおいては、ボール数がそれ未満の等速ジョイントに比較して、各ボール７に作用する負荷が小さいため、許容負荷トルクが大きく、許容負荷トルクを同じにすれば、等速ジョイントを小型化できるという特徴を有する。
【０００４】
ところで、上記固定式の等速ジョイントにおいては、外輪１の開口端における内径Ｄ1 がケージ８の外径Ｄ2 より小さいため、外輪１内に内輪４およびケージ８を組込んだのち、図５に示すように、内輪４およびケージ８を傾け、ケージ８のポケット９の１つを外輪１の開口端から外側に臨ませた状態で、そのポケット８内にボール７を組み込む必要がある。
【０００５】
なお、外輪１に対する内輪４およびケージ８の組込みは、図５に示すように、内輪４とケージ８とを９０°傾け、その状態でケージ８内に内輪４を挿入したのち、ケージ８の軸心と内輪４の軸心とが一致する方向に両部品を相対的に９０°回転させてケージ８内に内輪４を組込む。
【０００６】
次に、図７に示すように、ケージ付き内輪４と外輪１とを相対的に９０°に傾け、外輪１内にケージ付き内輪４を挿入したのち、外輪１と内輪４の軸心が一致する方向に両部品を９０°傾けて外輪１内にケージ付き内輪４を組込む。
【０００７】
ここで、固定式等速ジョイントにおいては、作動角をとって外輪１と内輪４の相互間でトルクを伝達するとき、ボール７はポケット９内において周方向に移動する。そのボール７の移動量は作動角に比例して大きくなる。
【０００８】
上記作動角は、図５に示すようなボール７の組込み時に最大となり、このときのボール７の移動量を基準としてポケット９の周方向の長さを決定する必要がある。
【０００９】
【発明が解決しようとする課題】
ところで、例えば、ボール数が８つの固定式等速ジョイントにおいては、ケージ８に設けられた８つのポケット９のそれぞれをボール組込み時のボール７の移動量を基準にして周方向の長さを決定しているため、ポケット９間に形成された柱９ａ（図６参照）の断面積が小さく、また、ケージ８の内・外の球面８ａの面積が小さく、ケージ８の強度や耐久性に問題があった。
【００１０】
この発明の課題は、ボール数を８つ以上の偶数個とした等速ジョイントのケージの強度および耐久性の向上を図ることを技術的課題としている。
【００１１】
【課題を解決するための手段】
上記の課題を解決するために、この発明においては、外輪の球形内面と内輪の球形外面とにそれぞれ８つの曲線状トラック溝を等配に設け、外輪トラック溝と内輪トラック溝間にボールを組込み、上記外輪と内輪間に組込まれたケージに上記ボールが収容される８つのポケットを設けた固定式等速ジョイントにおいて、前記８つのポケットを周方向長さが異なる第１ポケットと第２ポケットの２種類とし、その２種類の第１ポケットと第２ポケットを各ポケット中心間に４５°の間隔をおいてケージ周方向に交互に設け、前記長さの短い第１ポケットの周方向長さは、ジョイントが最大に角度をとってトルクを伝達するトルク伝達時にボールが第１ポケットの周方向両端と干渉しない程度の長さとし、長さの長い第２ポケットの周方向長さは、外輪と内輪とを相対的に傾けて外輪の開口端から外部に第１ポケットを臨ませるボール組込み時にボールが第２ポケットの周方向両端と干渉しない長さとした構成を採用している。
【００１２】
【作用】
上記の構成から成る等速ジョイントのボールの組込みは、外輪とケージとを相対的に傾け、ポケットの１つを外輪の開口端から外部に臨ませてる操作と、そのポケット内にボールを組込む操作とを繰り返し行なって、全てのポケットにボールを組込む。この場合、周方向長さの長い第２ポケットのそれぞれにボールを先に組込んだのち、周方向長さの短い第１ポケットにボールを組込む。
【００１３】
【発明の実施の形態】
以下、この発明の実施の形態を図１乃至図４に基づいて説明する。
【００１４】
図１に示すように、等速ジョイントは、先に述べた従来の等速ジョイントと同様に、外輪１０、内輪２０、ボール３０およびケージ４０から成る。
【００１５】
外輪１０の球形内面１１には８つの曲線状のトラック溝１２が４５°の間隔をおいて設けられている。一方、内輪２０の球形外面２１には、同じく８つの曲線状のトラック溝２２が４５°の間隔をおいて形成され、その内輪トラック溝２２の曲率中心Ａと、外輪トラック溝１２の曲率中心Ｂとは、ジョイントの角度中心Ｏに対して左右に等距離オフセットされている。
【００１６】
ボール３０は外輪トラック溝１２と内輪トラック溝２２間に組込まれ、一方、ケージ４０は外輪１０と内輪２０間に組込まれている。
【００１７】
ケージ４０は、外輪１０の球形内面１１と内輪２０の球形外面２１に接触案内される球面４１を内外に有する。また、ケージ４０には、図３に示すように、ボール３０を収容する４つの第１ポケット４２と４つの第２ポケット４３が周方向に交互に形成されている。４４は第１ポケット４２と第２ポケット４３間に形成された柱を示す。
【００１８】
第１ポケット４２と第２ポケット４３とは周方向長さが異なり、第１ポケット４２の周方向長さは、等速ジョイントが最大に角度をとって外輪１０と内輪２０の相互間でトルクを伝達するときのボール３０の周方向の移動量を考慮してボール３０が干渉しない程度の長さとされている。
【００１９】
一方、第２ポケット４３は、図４に示すように、外輪１０とケージ４０とを相対的に傾斜させ、第１ポケット４２を外輪１０の開口端から外部に臨ませるボール組込み時のボールの周方向の移動量を考慮してそのボール３０が干渉しない程度の長さとされている。
【００２０】
上記の構成から成る等速ジョイントの組立ては、外輪１０内に内輪２０およびケージ４０を組込んだのち、外輪１０とケージ４０とを相対的に傾斜させる操作の繰り返しにより、第１ポケット４２および第２ポケット４３を１つずつ外輪１０の開口端から外部に臨ませて各ポケット４２、４３にボール３０を組込む。
【００２１】
外輪１０に対する内輪２０およびケージ３０の組込みは、図６および図７に示す場合と同様であるため、説明を省略する。
【００２２】
ボール３０の組込みは、周方向長さの長い第２ポケット４３内に先に組込み、第２ポケット４３内のそれぞれにボール３０を組込んだのち、第１ポケット４２内にボール３０を組込む。
【００２３】
第１ポケット４２に対するボール３０の組込みにおいて、外輪１０とケージ４０とを相対的に傾けて第１ポケット４２の１つを外輪１０の開口端から外部に臨ませるとき、ボール組込み位置の第１ポケット４２に対して９０°および１８０°位相がずれる第１ポケット４２内のボール３０はケージ４０の周方向に移動せず、ボール３０は第１ポケット４２の周方向両端と干渉しない。
【００２４】
また、ボール組込み位置の第１ポケット４２に対して４５°および１３５°位相がずれる第２ポケット４３内のボール３０は、図３の鎖線で示すように、ケージ４０の周方向に移動する。
【００２５】
このとき、第２ポケット４３の周方向長さは、第１ポケット４２に対するボール３０の組込み時のボール３０の周方向の移動量を考慮して、その移動量より大きい値に設定されているため、ボール３０は第２ポケットの周方向両端に干渉することがない。
【００２６】
なお、実施の形態ではボール数を８つとした等速ジョイントを示したが、ボール数は８つ以上の偶数個、例えば、１０個あるいは１２個としてもよい。この場合、長さの短い第１ポケット４２は９０°又は１８０°の間隔をおいた配置とする。
【００２７】
【発明の効果】
以上のように、この発明においては、周方向の長さが異なる第１ポケットと第２ポケットとをケージの周方向に等配に設け、第１ポケットの周方向長さは等速ジョイントが最大に作動角をとってトルクを伝達するときのボールの周方向の移動量を規準に決定し、第２ポケットの周方向長さは、第１ポケットに対するボールの組込み時のボールの周方向の移動量を規準として決定したので、全てのポケットの周方向長さをボール組込み時のボールの移動量を規準として決定したものに比較して、第１ポケットと第２ポケット間に形成された柱の断面積およびケージの内外の球面面積を大きくとることができ、ケージの強度および耐久性の向上を図ることができる。
【図面の簡単な説明】
【図１】この発明に係る等速ジョイントの縦断正面図
【図２】図１のII−II線に沿った断面図
【図３】同上のケージの断面図
【図４】同上の等速ジョイントにおけるボールの組込み状態を示す断面図
【図５】従来の等速ジョイントを示す断面図
【図６】同上の内輪とケージの組立てを示す断面図
【図７】同上のケージ付き内輪と外輪の組立てを示す断面図
【符号の説明】
１０ 外輪
１１ 球形外面
１２ トラック溝
２０ 内輪
２１ 球形外面
２２ トラック溝
３０ ボール
４０ ケージ
４２ 第１ポケット
４３ 第２ポケット[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fixed type constant velocity joint.
[0002]
[Prior art]
As shown in FIG. 5, a curved ball groove 3 is formed on the spherical inner surface 2 of the outer ring 1, and a curved ball groove 6 is provided on the spherical outer surface 5 of the inner ring 4, and between the outer ring ball groove 3 and the inner ring ball groove 6. A fixed constant velocity joint having a pocket 9 for accommodating the ball 7 in a cage 8 assembled between the outer ring 1 and the inner ring 4 and having a plurality of balls 7. There are several types.
[0003]
Here, for example, in a constant velocity joint having eight balls, the load acting on each ball 7 is smaller than that of a constant velocity joint having a smaller number of balls, so that the allowable load torque is large. Is the same, the constant velocity joint can be reduced in size.
[0004]
By the way, in the fixed type constant velocity joint, since the inner diameter D 1 at the open end of the outer ring 1 is smaller than the outer diameter D 2 of the cage 8, the inner ring 4 and the cage 8 are assembled in the outer ring 1, and FIG. As shown in FIG. 3, the inner ring 4 and the cage 8 are inclined, and the ball 7 needs to be incorporated into the pocket 8 with one of the pockets 9 of the cage 8 facing outward from the open end of the outer ring 1.
[0005]
As shown in FIG. 5, the inner ring 4 and the cage 8 are assembled into the outer ring 1 by tilting the inner ring 4 and the cage 8 by 90 ° and inserting the inner ring 4 into the cage 8 in this state. The inner ring 4 is assembled in the cage 8 by rotating both parts relatively 90 ° in the direction in which the center and the axis of the inner ring 4 coincide.
[0006]
Next, as shown in FIG. 7, the inner ring 4 with cage and the outer ring 1 are inclined relative to each other by 90 °, and after inserting the inner ring 4 with cage into the outer ring 1, the axial centers of the outer ring 1 and the inner ring 4 coincide. The inner ring 4 with a cage is assembled in the outer ring 1 by tilting both parts by 90 ° in the direction to be moved.
[0007]
Here, in the fixed type constant velocity joint, when the torque is transmitted between the outer ring 1 and the inner ring 4 at an operating angle, the ball 7 moves in the circumferential direction in the pocket 9. The movement amount of the ball 7 increases in proportion to the operating angle.
[0008]
The operating angle is maximized when the ball 7 as shown in FIG. 5 is assembled, and the length of the pocket 9 in the circumferential direction needs to be determined based on the amount of movement of the ball 7 at this time.
[0009]
[Problems to be solved by the invention]
By the way, for example, in a fixed type constant velocity joint with eight balls, the length in the circumferential direction is determined based on the movement amount of the ball 7 when the ball is incorporated in each of the eight pockets 9 provided in the cage 8. Therefore, the cross-sectional area of the pillar 9a (see FIG. 6) formed between the pockets 9 is small, and the area of the spherical surface 8a inside and outside of the cage 8 is small, which causes problems in the strength and durability of the cage 8. was there.
[0010]
An object of the present invention is to improve the strength and durability of a constant velocity joint cage in which the number of balls is an even number of eight or more.
[0011]
[Means for Solving the Problems]
In order to solve the above-described problems, in the present invention, eight curved track grooves are provided equally on the spherical inner surface of the outer ring and the spherical outer surface of the inner ring, and balls are incorporated between the outer ring track groove and the inner ring track groove. In the fixed type constant velocity joint provided with eight pockets in which the balls are accommodated in a cage assembled between the outer ring and the inner ring, the eight pockets are formed by the first pocket and the second pocket having different circumferential lengths. Two types of first pockets and second pockets are alternately provided in the cage circumferential direction with a 45 ° interval between the pocket centers , and the circumferential length of the short first pocket is The length of the long second pocket in the circumferential direction is such that the ball does not interfere with the circumferential ends of the first pocket during torque transmission when the joint transmits torque at the maximum angle. Tilt relatively the outer ring and the inner ring adopts a configuration in which the ball during the ball incorporation for exposing the first pocket to the outside from the open end of the outer ring has a length which does not interfere with the circumferential opposite ends of the second pocket.
[0012]
[Action]
Assembling the ball of the constant velocity joint constructed as described above is an operation of tilting the outer ring and the cage relative to each other so that one of the pockets faces the outside from the opening end of the outer ring, and an operation of incorporating the ball into the pocket. Repeat the above to incorporate balls into all pockets. In this case, after the ball is first assembled in each of the second pockets having a long circumferential length, the ball is assembled in the first pocket having a short circumferential length.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
[0014]
As shown in FIG. 1, the constant velocity joint includes an outer ring 10, an inner ring 20, a ball 30, and a cage 40 in the same manner as the conventional constant velocity joint described above.
[0015]
Eight curved track grooves 12 are provided on the spherical inner surface 11 of the outer ring 10 at an interval of 45 °. On the other hand, eight curved track grooves 22 are similarly formed on the spherical outer surface 21 of the inner ring 20 at an interval of 45 °. The curvature center A of the inner ring track groove 22 and the curvature center B of the outer ring track groove 12 are formed. Is offset equidistant from side to side with respect to the angular center O of the joint.
[0016]
The ball 30 is incorporated between the outer ring track groove 12 and the inner ring track groove 22, while the cage 40 is incorporated between the outer ring 10 and the inner ring 20.
[0017]
The cage 40 has a spherical surface 41 that is in contact with the spherical inner surface 11 of the outer ring 10 and the spherical outer surface 21 of the inner ring 20 inside and outside. As shown in FIG. 3, the cage 40 is formed with four first pockets 42 and four second pockets 43 for accommodating the balls 30 alternately in the circumferential direction. Reference numeral 44 denotes a pillar formed between the first pocket 42 and the second pocket 43.
[0018]
The first pocket 42 and the second pocket 43 have different circumferential lengths, and the circumferential length of the first pocket 42 is such that the constant velocity joint takes a maximum angle to cause torque between the outer ring 10 and the inner ring 20. Considering the amount of movement of the ball 30 in the circumferential direction during transmission, the length is such that the ball 30 does not interfere.
[0019]
On the other hand, as shown in FIG. 4, the second pocket 43 is configured so that the outer ring 10 and the cage 40 are relatively inclined and the first pocket 42 is exposed to the outside from the opening end of the outer ring 10. Considering the amount of movement in the direction, the length of the ball 30 does not interfere.
[0020]
The assembly of the constant velocity joint having the above-described configuration is performed by repeatedly inserting the inner ring 20 and the cage 40 into the outer ring 10 and then relatively inclining the outer ring 10 and the cage 40. The balls 30 are assembled in the pockets 42 and 43 with the two pockets 43 facing each other from the open end of the outer ring 10 one by one.
[0021]
Since the inner ring 20 and the cage 30 are assembled into the outer ring 10 in the same manner as shown in FIGS. 6 and 7, the description thereof is omitted.
[0022]
The ball 30 is assembled in the second pocket 43 having a long circumferential length first, the ball 30 is assembled in each of the second pockets 43, and then the ball 30 is assembled in the first pocket 42.
[0023]
In assembling the ball 30 into the first pocket 42, when the outer ring 10 and the cage 40 are inclined relatively so that one of the first pockets 42 faces the outside from the open end of the outer ring 10, the first pocket in the ball assembling position is used. The balls 30 in the first pockets 42 that are 90 ° and 180 ° out of phase with respect to 42 do not move in the circumferential direction of the cage 40, and the balls 30 do not interfere with both circumferential ends of the first pocket 42.
[0024]
Further, the ball 30 in the second pocket 43 whose phase is shifted by 45 ° and 135 ° with respect to the first pocket 42 at the ball incorporation position moves in the circumferential direction of the cage 40 as indicated by a chain line in FIG.
[0025]
At this time, the circumferential length of the second pocket 43 is set to a value larger than the movement amount in consideration of the movement amount of the ball 30 in the circumferential direction when the ball 30 is assembled with the first pocket 42. The ball 30 does not interfere with both circumferential ends of the second pocket.
[0026]
In the embodiment, the constant velocity joint with eight balls is shown, but the number of balls may be an even number of eight or more, for example, ten or twelve. In this case, the short first pockets 42 are arranged at intervals of 90 ° or 180 °.
[0027]
【The invention's effect】
As described above, in the present invention, the first pockets and the second pockets having different circumferential lengths are provided equally in the circumferential direction of the cage, and the circumferential length of the first pocket is the maximum at the constant velocity joint. The amount of movement in the circumferential direction of the ball when the torque is transmitted to the first pocket is determined as a criterion, and the circumferential length of the second pocket is determined by the movement of the ball in the circumferential direction when the ball is incorporated into the first pocket. Since the amount was determined as a criterion, the circumferential lengths of all pockets were compared with those determined based on the amount of movement of the ball when the ball was assembled as a criterion, and the columns formed between the first pocket and the second pocket The cross-sectional area and the spherical area inside and outside the cage can be increased, and the strength and durability of the cage can be improved.
[Brief description of the drawings]
FIG. 1 is a longitudinal front view of a constant velocity joint according to the present invention. FIG. 2 is a sectional view taken along line II-II in FIG. 1. FIG. 3 is a sectional view of a cage. FIG. 5 is a cross-sectional view showing a conventional constant velocity joint. FIG. 6 is a cross-sectional view showing an assembly of an inner ring and a cage. FIG. 7 is an assembly of an inner ring with a cage and an outer ring. Sectional view showing [signs]
10 outer ring 11 spherical outer surface 12 track groove 20 inner ring 21 spherical outer surface 22 track groove 30 ball 40 cage 42 first pocket 43 second pocket

Claims (1)

外輪の球形内面と内輪の球形外面とにそれぞれ８つの曲線状トラック溝を等配に設け、外輪トラック溝と内輪トラック溝間にボールを組込み、上記外輪と内輪間に組込まれたケージに上記ボールが収容される８つのポケットを設けた固定式等速ジョイントにおいて、前記８つのポケットを周方向長さが異なる第１ポケットと第２ポケットの２種類とし、その２種類の第１ポケットと第２ポケットを各ポケット中心間に４５°の間隔をおいてケージ周方向に交互に設け、前記長さの短い第１ポケットの周方向長さは、ジョイントが最大に角度をとってトルクを伝達するトルク伝達時にボールが第１ポケットの周方向両端と干渉しない程度の長さとし、長さの長い第２ポケットの周方向長さは、外輪と内輪とを相対的に傾けて外輪の開口端から外部に第１ポケットを臨ませるボール組込み時にボールが第２ポケットの周方向両端と干渉しない長さとしたことを特徴とする固定式等速ジョイント。Eight curved track grooves are provided equally on the spherical inner surface of the outer ring and the spherical outer surface of the inner ring, balls are assembled between the outer ring track grooves and the inner ring track grooves, and the balls are mounted on the cage assembled between the outer ring and the inner ring. In the fixed-type constant velocity joint provided with eight pockets for accommodating the two pockets, the eight pockets are divided into two types of first pocket and second pocket having different circumferential lengths, and the two types of first pocket and second pocket The pockets are alternately provided in the circumferential direction of the cage at 45 ° intervals between the pocket centers , and the circumferential length of the short first pocket is the torque at which the joint transmits torque at the maximum angle. The length of the second pocket is long enough to prevent the ball from interfering with both circumferential ends of the first pocket during transmission. Fixed type constant velocity joint, wherein the ball when the ball embedded for exposing the first pocket has a length that does not interfere with the circumferential opposite ends of the second pocket.
JP33934595A 1995-12-26 1995-12-26 Fixed constant velocity joint Expired - Lifetime JP3702019B2 (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
JP33934595A JP3702019B2 (en) 1995-12-26 1995-12-26 Fixed constant velocity joint
KR1019970705290A KR100472985B1 (en) 1995-12-26 1996-12-19 Constant velocity joint
CN 200510078655 CN1755154A (en) 1995-12-26 1996-12-19 Constant speed universal coupling assembly
DE69623439T DE69623439T3 (en) 1995-12-26 1996-12-19 HOMOKINETIC CRUSH
PCT/JP1996/003702 WO1997024538A1 (en) 1995-12-26 1996-12-19 Constant velocity universal coupling
AU11711/97A AU714553B2 (en) 1995-12-26 1996-12-19 Constant velocity joint
DE69636727T DE69636727T2 (en) 1995-12-26 1996-12-19 CV joints
EP96942575A EP0802341B2 (en) 1995-12-26 1996-12-19 Constant velocity universal coupling
EP02003007A EP1209373B1 (en) 1995-12-26 1996-12-19 Constant velocity joint
US08/860,719 US6120382A (en) 1995-12-26 1996-12-19 Constant velocity joint
CN96192137A CN1087817C (en) 1995-12-26 1996-12-19 Constant velocity universal coupling
DE69636726T DE69636726T2 (en) 1995-12-26 1996-12-19 CV joints
EP02003004A EP1209372B1 (en) 1995-12-26 1996-12-19 Constant velocity joint
US09/500,649 US6267682B1 (en) 1995-12-26 2000-02-09 Constant velocity joint
US09/500,532 US6386983B1 (en) 1995-12-26 2000-02-09 Constant velocity joint having eight torque transmitting balls
CNB021015333A CN1260487C (en) 1995-12-26 2002-01-04 Constant speed universal coupling assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33934595A JP3702019B2 (en) 1995-12-26 1995-12-26 Fixed constant velocity joint

Publications (2)

Publication Number Publication Date
JPH09177814A JPH09177814A (en) 1997-07-11
JP3702019B2 true JP3702019B2 (en) 2005-10-05

Family

ID=18326576

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33934595A Expired - Lifetime JP3702019B2 (en) 1995-12-26 1995-12-26 Fixed constant velocity joint

Country Status (2)

Country Link
JP (1) JP3702019B2 (en)
CN (1) CN1755154A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69833340T2 (en) 1997-07-16 2006-10-12 Nsk Ltd. Rolling bearing unit and constant velocity joint for wheels
DE10304156B4 (en) * 2003-02-03 2011-10-20 Gkn Driveline International Gmbh Anti-ball joint with improved cage
DE10337919B4 (en) * 2003-08-18 2008-01-24 Gkn Driveline International Gmbh Counter track joint with improved ball cage
DE10337918B4 (en) * 2003-08-18 2010-01-07 Gkn Driveline Deutschland Gmbh Twin ball joint with improved ball cage
JP2006258170A (en) 2005-03-16 2006-09-28 Ntn Corp Fixed type constant velocity universal joint
JP2006283830A (en) * 2005-03-31 2006-10-19 Ntn Corp Constant velocity universal joint
JP5241078B2 (en) 2006-03-31 2013-07-17 Ｎｔｎ株式会社 Fixed constant velocity universal joint
JP4850154B2 (en) * 2007-09-07 2012-01-11 Ｎｔｎ株式会社 Working angle sensor for constant velocity universal joint
JP5355876B2 (en) 2007-10-24 2013-11-27 Ｎｔｎ株式会社 Constant velocity universal joint
JP5734742B2 (en) * 2011-05-25 2015-06-17 Ntn株式会社 Constant velocity universal joint
CN106741780B (en) * 2017-01-15 2019-05-03 兴化市天东软件科技有限公司 A kind of mechanical agriculture driving mechanism peculiar to vessel

Also Published As

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CN1755154A (en) 2006-04-05
JPH09177814A (en) 1997-07-11

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