JPH03172621A - Uniform velocity joint - Google Patents
Uniform velocity jointInfo
- Publication number
- JPH03172621A JPH03172621A JP31405189A JP31405189A JPH03172621A JP H03172621 A JPH03172621 A JP H03172621A JP 31405189 A JP31405189 A JP 31405189A JP 31405189 A JP31405189 A JP 31405189A JP H03172621 A JPH03172621 A JP H03172621A
- Authority
- JP
- Japan
- Prior art keywords
- tracks
- track
- joint
- preload
- outer ring
- 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
- 230000036316 preload Effects 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 230000002542 deteriorative effect Effects 0.000 description 1
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
-
- 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
-
- 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
- F16D2003/22309—Details of grooves
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、自動車のプロペラシャフト及びドライブシ
ャフト用の等速ジヨイントに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a constant velocity joint for a propeller shaft and a drive shaft of an automobile.
一般に、プロペラシャフト用の等速ジョイントは、回転
バランス性能、及び各種ＮＶＨ性能を向上させるため、
上記等速ジヨイントに予圧を付与し、シラインドすきま
の無い状態で使用されることが多い、また、ドライブシ
ャフト用等速ジョイントにおいても、各種ＮＶＨ性能を
向上のため、予圧状態とし、ジヨイントガタを無くして
使用される場合がある
上記プロペラシャフト及びドライブシャフト用の等速ジ
ヨイントとしてボールタイプのものが用いられる。In general, constant velocity joints for propeller shafts improve rotational balance performance and various NVH performances.
The constant velocity joint mentioned above is often used with a preload and no shield clearance.Also, in the constant velocity joint for drive shafts, in order to improve various NVH performances, the constant velocity joint is preloaded and used to eliminate joint play. Ball type constant velocity joints are sometimes used for the propeller shafts and drive shafts.
第２図乃至第４図は、各種のボールタイプ等速ジヨイン
トを示し、いずれの等速ジヨイントも、外輪１、内輪２
、保持器３および複数のボール４から成り、外輪１の内
面および内輪２の外面にボール４の移動を案内するトラ
ックＴ Ｉ−Ｔ ＊が設けられている。Figures 2 to 4 show various ball type constant velocity joints, and all constant velocity joints have an outer ring 1 and an inner ring 2.
, a retainer 3 and a plurality of balls 4, and tracks T I-T * for guiding the movement of the balls 4 are provided on the inner surface of the outer ring 1 and the outer surface of the inner ring 2.
ここで、第２図に示すジヨイントはクロスグループシラ
インド（Ｌ Ｊ）と称され、保持器３には外輪１の円筒
状内面５に接触案内される球形外面６と、内輪２０球形
外面７に接触案内される球形内面８とが設けられている
。Here, the joint shown in FIG. 2 is called a cross group shield (L J), and the cage 3 has a spherical outer surface 6 that is guided in contact with the cylindrical inner surface 5 of the outer ring 1, and an inner ring 20 that has a spherical outer surface 7. A contact-guided spherical inner surface 8 is provided.
また、第３図に示すジヨイントはダブルオフセットジヨ
イント（ＤＯＪ）と称され、保持器３には外輪１の円筒
状内面５′に接触案内される球形外面６′と内輪２の球
形外面７′に接触案内される球形内面８′とが設けられ
、保持器３の球形外面６′の中心Ａ１と球形内面８′の
中心Ｂ、がジヨイントの中心０．より左右に等距離オフ
セットされている。The joint shown in FIG. 3 is called a double offset joint (DOJ), and the cage 3 has a spherical outer surface 6' guided in contact with the cylindrical inner surface 5' of the outer ring 1, and a spherical outer surface 7' of the inner ring 2. A spherical inner surface 8' is provided which is guided in contact with the cage 3, and the center A1 of the spherical outer surface 6' of the retainer 3 and the center B of the spherical inner surface 8' are aligned with the center 0. of the joint. It is offset equidistantly to the left and right.
さらに、第４図に示すジヨイントはバーフィールドジヨ
イント（ＢＪ）と称され、外輪１の球形内面５“に形成
したトラックＴ、の中心Ａ８と内輪２の球形外面８″に
設けたトラックＴｔの中心Ｂ２がジヨイントの中心Ｏｆ
より左右に等距離オフセットされている。Furthermore, the joint shown in FIG. 4 is called a Barfield joint (BJ), and the center A8 of the track T formed on the spherical inner surface 5'' of the outer ring 1 and the track Tt formed on the spherical outer surface 8'' of the inner ring 2. Center B2 is the joint center Of
It is offset equidistantly to the left and right.
これらボールタイプ等速ジヨイントの外輪１、内輪２の
トラックＴ ＋ 、Ｔ 茸には、第５図（イ）に示すよ
うに、固定の接触角をもつアンギュラコンタクトトラッ
ク（ＡＣ）ラック）（ＡＣ）と、第６図Ｃ４）に示すよ
うに、接触角が一定でないサーキュラ−コンタクトトラ
ック（ＣＣ）とが存在し、従来のボールタイプ等速ジヨ
イントにおいては、（ＡＣ）トラック（Ａ Ｃ）とＣＣ
）ランク（ＣＣ）のいずれか一方を用いるようにしてい
る。The tracks T + and T of the outer ring 1 and inner ring 2 of these ball type constant velocity joints have angular contact tracks (AC racks) with a fixed contact angle, as shown in Figure 5 (a). As shown in Fig. 6 C4), there is a circular contact track (CC) where the contact angle is not constant.
) Rank (CC) is used.
ところで、いずれのトラック（ＡＣ）、（ＣＧ）もジヨ
イントすきまのある状態でトルクが伝達されると、第５
図（ロ）および第６図（ロ）で示すように、ＡＣトラッ
ク（Ａ Ｃ）及びＣＣｌ−ラック（ＣＣ）とも２点接触
状態となり、ボール４は正しく転がり運動する。By the way, if torque is transmitted with both tracks (AC) and (CG) having joint clearance, the fifth
As shown in FIG. 6(b) and FIG. 6(b), both the AC track (AC) and the CCl-rack (CC) are in two-point contact, and the ball 4 rolls correctly.
しかし、第７図及び第８図で示すように、予圧をかけて
ジヨイントすきまを無くし、その状態でトルクが伝達さ
れると、ＡＣ）ランク（ＡＣ）では４点接触状態となっ
て作動するため、すべりによる摩擦が増大して、温度上
昇性能、耐久性、許容回転数、ＮＶＨ性能を悪化させる
問題がある。However, as shown in Figures 7 and 8, if preload is applied to eliminate the joint clearance and torque is transmitted in that state, the AC) rank (AC) will operate in a four-point contact state. There is a problem in that friction due to slipping increases, deteriorating temperature rise performance, durability, permissible rotational speed, and NVH performance.
一方、ＣＣトラック（ＣＣ）では、２点接触状態で作動
するが、高負荷時にはＣＣトラック（ＣＣ）に対するボ
ール４の接触楕円（イ）がトラック（ＣＣ）に乗り上げ
、高面圧を発生させたり、トラック（ＣＣ）の肩（ロ）
が欠けたりし、耐久性を悪化させる問題があった。On the other hand, the CC track (CC) operates in a two-point contact state, but when the load is high, the contact ellipse (A) of the ball 4 against the CC track (CC) rides on the track (CC), generating high surface pressure. , shoulder of truck (CC) (b)
There was a problem in that the film was chipped and its durability deteriorated.
そこで、この発明は上記の問題点を解決し、予圧状態と
した等速ジヨイントのトルク伝達時における温度上昇性
能、耐久性、許容回転数、ＮＶＨ性能の向上を図ること
を技術的課題としている。Therefore, the technical object of this invention is to solve the above-mentioned problems and improve the temperature rise performance, durability, allowable rotation speed, and NVH performance during torque transmission of a constant velocity joint in a preloaded state.
上記の課題を解決するために、この発明においては、外
輪の内面および内輪の外面に形成されたボール案内用の
トラックがＡＣ）ラックとＣＣトラックの２種類を含み
、そのＣＣトラックに予圧を付与した構成を採用したの
である。In order to solve the above problems, in this invention, the ball guiding tracks formed on the inner surface of the outer ring and the outer surface of the inner ring include two types: an AC rack and a CC track, and a preload is applied to the CC track. We adopted this configuration.
上記のように構成すれば、ＣＣ）ラックに付与される予
圧によってジヨイントのガタが無（なり、全てのトラッ
クが２点接触状態で作動する。With the above configuration, the preload applied to the CC rack eliminates joint play, and all tracks operate in a two-point contact state.
゛以下、この発明の実施例を第１図に基づいて説明する
。゛Hereinafter, an embodiment of the present invention will be described based on FIG.
なお、第１図はこの発明に係る等速ジツイントの断面図
であり、全体的な構成は、第２図乃至第４図に示される
等速ジツイントと同じであるため、省略しである。Note that FIG. 1 is a cross-sectional view of the constant velocity jet int according to the present invention, and the overall configuration is the same as the constant velocity jet int shown in FIGS. 2 to 4, so the illustration is omitted.
図示のように、外輪１の内面と内輪２の外面の対向位置
には、ＡＣ）ラック（ＡＣ）とＣＣトラック（ＣＣ）が
周方向に交互に形成され、各トラック（ＡＣ）、（ＣＣ
）内にトルク伝達用のボール４が組込まれている。As shown in the figure, AC) racks (AC) and CC tracks (CC) are formed alternately in the circumferential direction at opposite positions of the inner surface of the outer ring 1 and the outer surface of the inner ring 2, and each track (AC), (CC
) is incorporated with a ball 4 for torque transmission.
ＡＣ）ラック（ＡＣ）とＣＣ）ラック（ＣＣ）のうち、
ＡＣ）ラック（Ａ Ｃ）には予圧は付与されず、ＣＣ）
ラック（ＣＣ）に第８図に示すように予圧が付与されて
いる。AC) rack (AC) and CC) rack (CC),
AC) No preload is applied to the rack (A C), CC)
A preload is applied to the rack (CC) as shown in FIG.
上記のように、ＣＣトラック（ＣＧ）のみに予圧を付与
することにより、ジヨイントのガタが無くなり、そのシ
ラインドにトルクが負荷されると、ＡＣ）ラック（ＡＣ
） 、ＣＣ）ラック（ＣＣ）とも２点の接触でトルクを
伝達する。As mentioned above, by applying preload only to the CC track (CG), the play in the joint is eliminated, and when torque is applied to that cylinder, the AC) rack (AC)
), CC) Rack (CC) both transmit torque through two points of contact.
このため、各トラック（ＡＣ）、（ＣＣ）内に組込まれ
たボール４はすべることな（正しく転がり運動して外輪
１と内輪２の相互間においてトルりを伝達することにな
り、温度上昇性能、耐久性、許容回転数、ＮＶＨ性能を
向上させることができる。Therefore, the balls 4 installed in each track (AC) and (CC) do not slip (roll correctly) and transfer torque between the outer ring 1 and the inner ring 2, resulting in improved temperature rise performance. , durability, allowable rotation speed, and NVH performance can be improved.
また、負荷が大きくなると、その負荷は固定の接触角を
もつ複数のＡＣ）ラック（ＡＣ）のそれぞれで分担して
受は持たれる。その結果、ＣＣトラック（ＣＣ）での接
触楕円の乗り上げは緩和され、高負荷時の耐久性も良好
である。Furthermore, when the load becomes large, the load is shared by each of the plurality of AC racks (ACs) each having a fixed contact angle. As a result, riding of the contact ellipse on the CC track (CC) is alleviated, and durability under high loads is also good.
実施例の場合は、外輪１と内輪２に６本のトラックを形
成し、その６本のトラックのうち、３本のトラックをＣ
Ｃトラック（ＣＣ） としたが、ＣＣトラック（ＣＧ
）は少なくとも２つ以上あればよい。In the case of the embodiment, six tracks are formed on the outer ring 1 and the inner ring 2, and three of the six tracks are C.
C track (CC), but CC track (CG
) should be at least two or more.
以上のように、この発明に係る等速ジヨイントによれば
、ＡＣ）ラック（Ａ Ｃ）とＣＧ）ラック（ＣＣ）を混
在させ、そのＣＣトラックに予圧を与えてジツイントの
ガタを無くすようにしたので、温度上昇性能、耐久性、
許容回転数、ＮＶＨ性能の向上を図ることができる。As described above, according to the constant velocity joint according to the present invention, the AC) rack (AC) and the CG) rack (CC) are mixed, and preload is applied to the CC track to eliminate looseness of the joint. So, temperature rise performance, durability,
It is possible to improve the allowable rotation speed and NVH performance.
第１図はこの発明に係る等速ジヨイントの一実施例を示
す断面図、第２図乃至第４図はボールタイプの等速ジヨ
イントの各側を示す断面図、第５図（イ）および第６図
（イ）はトラックの各側を示す断面図、第５図（ロ）お
よび第６図（ロ）は第５図（イ）、第６図（イ）の作動
状態を示す断面図、第７図はＡＣ）ラックに予圧をかけ
た状態の断面図、第８図はＣＣトラックに予圧をかけた
状態の断面図である。
１・・・・・・外輪、 ２・・・・・・内輪、
３・・・・・・保持器、 ４・・・・・・ボール
、ＡＣ・・・・・・アンギュラコンタクトトラック、Ｃ
Ｃ・・・・・・サーキュラ−コンタクトトラック。FIG. 1 is a sectional view showing one embodiment of a constant velocity joint according to the present invention, FIGS. 2 to 4 are sectional views showing each side of a ball type constant velocity joint, and FIGS. FIG. 6(a) is a sectional view showing each side of the truck, FIG. 5(b) and FIG. 6(b) are sectional views showing the operating state of FIG. 5(a) and FIG. 6(a), FIG. 7 is a cross-sectional view of the AC rack with preload applied to it, and FIG. 8 is a cross-sectional view of the CC track with preload applied to it. 1...Outer ring, 2...Inner ring,
3...Retainer, 4...Ball, AC...angular contact track, C
C...Circular contact track.
Claims (1)
に形成した複数のトラックの対向部間にボールを組込み
、そのボールを外輪と内輪間に組んだ保持器で保持した
等速ジョイントにおいて、前記トラックがアンギュラコ
ンタクトトラックとサーキュラーコンタクトトラックの
２種類を含み、そのサーキュラーコンタクトトラックに
予圧を付与したことを特徴とする等速ジョイント。(1) In a constant velocity joint in which balls are incorporated between opposing parts of multiple tracks provided on the inner surface of the outer ring and multiple tracks formed on the outer surface of the inner ring, and the balls are held by a retainer assembled between the outer ring and the inner ring. . A constant velocity joint, wherein the track includes two types, an angular contact track and a circular contact track, and a preload is applied to the circular contact track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31405189A JPH03172621A (en) | 1989-11-30 | 1989-11-30 | Uniform velocity joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31405189A JPH03172621A (en) | 1989-11-30 | 1989-11-30 | Uniform velocity joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03172621A true JPH03172621A (en) | 1991-07-26 |
Family
ID=18048631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31405189A Pending JPH03172621A (en) | 1989-11-30 | 1989-11-30 | Uniform velocity joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03172621A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5643091A (en) * | 1994-12-14 | 1997-07-01 | General Motors Corporation | Stroking constant velocity universal joint having low stroke load |
| DE19633216C1 (en) * | 1996-08-17 | 1998-01-02 | Gkn Automotive Ag | Constant velocity drive joint |
| JP2002188653A (en) * | 2000-12-20 | 2002-07-05 | Ntn Corp | Uniform motion universal joint |
| WO2008141907A1 (en) * | 2007-05-18 | 2008-11-27 | Gkn Driveline Deutschland Gmbh | Homokinetic plunging ball joint with low plunging forces |
| WO2014135343A1 (en) * | 2013-03-06 | 2014-09-12 | Volkswagen Aktiengesellschaft | Constant velocity joint |
-
1989
- 1989-11-30 JP JP31405189A patent/JPH03172621A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5643091A (en) * | 1994-12-14 | 1997-07-01 | General Motors Corporation | Stroking constant velocity universal joint having low stroke load |
| DE19633216C1 (en) * | 1996-08-17 | 1998-01-02 | Gkn Automotive Ag | Constant velocity drive joint |
| JP2002188653A (en) * | 2000-12-20 | 2002-07-05 | Ntn Corp | Uniform motion universal joint |
| WO2008141907A1 (en) * | 2007-05-18 | 2008-11-27 | Gkn Driveline Deutschland Gmbh | Homokinetic plunging ball joint with low plunging forces |
| US8277329B2 (en) | 2007-05-18 | 2012-10-02 | Gkn Driveline Deutschland Gmbh | Homokinetic plunging ball joint with low plunging forces |
| WO2014135343A1 (en) * | 2013-03-06 | 2014-09-12 | Volkswagen Aktiengesellschaft | Constant velocity joint |
| CN105121883A (en) * | 2013-03-06 | 2015-12-02 | 大众汽车有限公司 | Constant velocity joint |
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