JPS636219A - Constant velocity universal joint - Google Patents
Constant velocity universal jointInfo
- Publication number
- JPS636219A JPS636219A JP14741486A JP14741486A JPS636219A JP S636219 A JPS636219 A JP S636219A JP 14741486 A JP14741486 A JP 14741486A JP 14741486 A JP14741486 A JP 14741486A JP S636219 A JPS636219 A JP S636219A
- Authority
- JP
- Japan
- Prior art keywords
- rolling elements
- leg shaft
- shaft
- outer ring
- washer
- 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
- 238000005096 rolling process Methods 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects 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
- F16D3/202—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 one coupling part having radially projecting pins, e.g. tripod joints
- F16D3/205—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 one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
- F16D3/2055—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 one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part having three pins, i.e. true tripod joints
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
この発明は、主として前輪駆動式の自動車に適用される
等速自在継手に関し、特にトリボード形等速自在継手に
関するものである。The present invention relates to a constant velocity universal joint mainly applied to front-wheel drive vehicles, and particularly to a tri-board type constant velocity universal joint.
この種、従来の等速自在継手として、例えば第６図に示
すように、外輪（１）の内面に軸方向の三本のトラック
溝（２）を形成し、その外輪（１）の内側に配置したト
リボード部材（３）に半径方向の脚軸（４）を突設し、
各脚軸（４）の外側に多数の転動体（５）を介して球面
ローラ（６）を回転可能に、かつ軸方向にスライド可能
に嵌合し、その球面ローラ （６）を上記トラック溝（
２）の両側のローラ案内面（７）に係合させたものが知
られている。尚、（８）は止め輪（９）によって転動体
（５）と球面ローラ（６）の抜けを防止するための保持
環である。
上記トリボード形等速自在継手において、外輪（１）と
トリボード部材（３）とが作動角をとる状態で動力を伝
達する場合を考えると、第７図に示すように、脚軸（４
）の軸芯Ｙの交点は０から０に移動して外輪（１）の軸
芯Ｘから距離ｄだけ変位し、その変化量を半径として軸
芯Ｘのまわりを振れ回わろうとする。したがって、ロー
ラ案内面との係合によって外輪（１）の半径方向に移動
するのを防止された球面ローラ（６）と脚軸（４）とは
、距離ｄの二倍の寸法を移動量として相対的に移動する
ことになる。このとき、第６図の矢印方向に正しくころ
がり移動しようとする球面ローラ（６）は、ころがり方
向を変えながら脚軸（４）に対して相対的に移動するた
め、両者間にこじれが生じ、そのこじれによって脚軸（
４）と球面ローラ（６）との間に整然と並んで配置した
多数の転動体（５）にスキニーが発生する。このスキニ
ー発生で、ラジアルスキマが減少しトルクが大きくなっ
たり転動体（５）の軸方向すべり抵抗が太き（なること
によって球面ローラ（６）の回転を阻害し、転動体（５
）の寿命を低下させるという不都合がある。As a conventional constant velocity universal joint of this kind, for example, as shown in Fig. 6, three track grooves (2) in the axial direction are formed on the inner surface of the outer ring (1), and A radial leg shaft (4) is provided to protrude from the arranged tri-board member (3),
A spherical roller (6) is rotatably and axially slidably fitted to the outside of each leg shaft (4) via a large number of rolling elements (5), and the spherical roller (6) is inserted into the track groove. (
2), which engages the roller guide surfaces (7) on both sides, is known. Note that (8) is a retaining ring for preventing the rolling element (5) and the spherical roller (6) from coming off by means of a retaining ring (9). In the tri-board type constant velocity universal joint described above, if we consider the case where power is transmitted in a state where the outer ring (1) and the tri-board member (3) take an operating angle, as shown in FIG.
) moves from 0 to 0 and is displaced by a distance d from the axis X of the outer ring (1), and attempts to swing around the axis X using the amount of change as a radius. Therefore, the spherical roller (6) and the leg shaft (4), which are prevented from moving in the radial direction of the outer ring (1) by engagement with the roller guide surface, have a movement amount that is twice the distance d. It will move relatively. At this time, the spherical roller (6), which is trying to roll and move correctly in the direction of the arrow in FIG. 6, moves relative to the leg shaft (4) while changing its rolling direction, causing distortion between the two. Due to the twist, the leg axis (
4) and the spherical roller (6), a large number of rolling elements (5) are arranged in an orderly manner and skinny occurs. As a result of this skinny occurrence, the radial clearance decreases, the torque increases, and the axial sliding resistance of the rolling element (5) increases (thus, the rotation of the spherical roller (6) is inhibited, and the rolling element (5)
) has the disadvantage of reducing the lifespan of the
そこで、この発明は上記の不都合を解消し、脚軸とロー
ラとの間に組込んだ転動体のスキニー発生を抑制してロ
ーラの回転を円滑に行わせ、転動体の寿命向上を図るこ
とを技術的課題としている。Therefore, the present invention solves the above-mentioned disadvantages, suppresses the occurrence of skinny in the rolling elements incorporated between the leg shaft and the rollers, allows the rollers to rotate smoothly, and improves the life of the rolling elements. This is considered a technical issue.
上記の課題を解決するために、この発明は、外輪の内面
に軸方向の三本のトラック溝を形成し、外輪の内側に配
置したトリボード部材には三本の円柱形脚軸を突設し、
各脚軸とそのまわりに嵌合したローラとの間に転動体を
介在し、上記ローラをトラック溝に係合して外輪とトリ
ボード部材間の回転運動を伝達するようにした等速自在
継手において、上記転動体の端面と接する面に、円周方
向に波形状の凹凸を設けたワッシャを上記各
脚軸に装着したことを特徴とするものである。In order to solve the above problems, the present invention forms three track grooves in the axial direction on the inner surface of the outer ring, and protrudes from three cylindrical leg shafts on the tri-board member disposed inside the outer ring. ,
In a constant velocity universal joint in which a rolling element is interposed between each leg shaft and a roller fitted around the leg shaft, and the roller is engaged with a track groove to transmit rotational motion between an outer ring and a tri-board member. The present invention is characterized in that a washer having wave-shaped irregularities in the circumferential direction is attached to each of the leg shafts on a surface in contact with an end surface of the rolling element.
以下、この発明の実施例を添付図面に基づいて説明する
。
第１図および第２図に示すように、外輪（１０）は従来
の場合と同様に閉塞端に第１軸（１１）が−体に設けら
れ、また内周面に軸方向の三本のトラック溝（１２）が
中心軸のまわりに１２０度の間隔をおいて形成されてい
る。
上記外輪（１０）の内部に挿入されるトリボード部材（
１３）は、第２軸（１４）の−端に形成したセレーショ
ン（１５）に係合されると共に、段部（１６）とクリッ
プ（１７）との間で抜は止め状態に保持される。このト
リボード部材（１３）は、三本の円柱形脚軸（１８）を
有し、各脚軸（１８）のまわりには球面ローラ（１９）
を回転可能に、かつ軸方向にスライド可能に嵌合してい
る。
上記脚軸（１８）と球面ローラ（１９）との間の空間に
は多数の転動体（２０）が配置され、これにより球面ロ
ーラ（１９）は脚軸（１８）の軸線の周りに滑らかに回
転できるようになっている。
上記球面ローラ（１９）及び転動体（２０）は、脚軸（
１８）の先端近傍部の外周に形成された環状溝（２１）
と、該環状溝（２１）に係合した止め輪（２２）と、脚
軸（１８）の外周に嵌合する保持環（２３）とで構成さ
れる保持構造によって抜は止めされている。
脚軸（１８）の根元部の外周には転動体（２０）の端面
と接する側に円周方向に波形状の凹凸を設けたワッシャ
（２４）が装着されている。上記ワッシャ（２４）は、
第３図に示すように、径方向の寸法ｔが転動体（２０）
の径に略等しく、θは１／１０ｒａｄ以下である。尚、
この実施例では、転動体（２０）端面と接しない側は、
フラットな面であるが、第４図に示すように全体が波形
状に形成されたものであってもよい。
上記実施例に係る等速自在継手によれば、第１軸（１１
）と第２軸（１４）間に作動角が発生すると、脚軸（１
８）と球面ローラ（１９）との間にこじれが生じ、両者
間に介在した多数の転動体（２０）がスキューしようと
する。しかし、第５図に示すように、各転動体（２０）
は、脚軸（１８）の根元部に装着したワッシャ（２４）
の凹凸部との接触によってあらかじめ異なった角度で配
列されているため、−部スキニーの方向または角度に相
反する転動体があり、この転動体の影響を受けてスキニ
ーの発生を抑制するようになる。
従ってスキニー発生に起因する球面ローラ（１９）の回
転を阻害し、転動体の寿命低下を防止することができる
。
尚、上記実施例ではワッシャ（２４）を脚軸（１８））
根元部に装着する場合について説明したが、脚軸（１８
）の先端部又は根元部と先端部の両方に装着ζてもよい
。
球面ローラを回転させ、転動体がスキューしている状態
において、球面ローラの回転に要するトルクと、軸方向
に移動させるに必要な力を、従来のものと比較した結果
、本発明に係るワッシャを用いたものについては、回転
トルクで従来の３０〜５０％、又すべり抵抗力で４０〜
５０％と減少した０以上のことから、本発明のものはス
キニーの影響が少なく、球面ローラの回転を円滑に行わ
せ、転動体の寿命を向上するのに適していることが分か
る。Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the outer ring (10) has a first shaft (11) at the closed end as in the conventional case, and three axial shafts on the inner circumferential surface. Track grooves (12) are formed around the central axis at intervals of 120 degrees. The tri-board member (
13) is engaged with the serrations (15) formed at the negative end of the second shaft (14), and is held between the stepped portion (16) and the clip (17) to prevent removal. This tri-board member (13) has three cylindrical leg shafts (18), and a spherical roller (19) is arranged around each leg shaft (18).
are fitted to be rotatable and slidable in the axial direction. A large number of rolling elements (20) are arranged in the space between the leg shaft (18) and the spherical roller (19), so that the spherical roller (19) moves smoothly around the axis of the leg shaft (18). It can be rotated. The spherical roller (19) and the rolling element (20) have a leg shaft (
An annular groove (21) formed on the outer periphery near the tip of 18)
The retaining structure includes a retaining ring (22) that engages with the annular groove (21), and a retaining ring (23) that fits around the outer periphery of the leg shaft (18). A washer (24) provided with wave-shaped irregularities in the circumferential direction is attached to the outer periphery of the base of the leg shaft (18) on the side in contact with the end surface of the rolling element (20). The washer (24) is
As shown in Fig. 3, the radial dimension t is the rolling element (20).
is approximately equal to the diameter of , and θ is 1/10 rad or less. still,
In this embodiment, the side not in contact with the end face of the rolling element (20) is
Although it is a flat surface, the entire surface may be formed into a wave shape as shown in FIG. According to the constant velocity universal joint according to the above embodiment, the first shaft (11
) and the second shaft (14), the leg shaft (1
8) and the spherical roller (19), and the many rolling elements (20) interposed between them tend to skew. However, as shown in Fig. 5, each rolling element (20)
is a washer (24) attached to the base of the leg shaft (18).
Because they are arranged at different angles in advance due to contact with the uneven parts, there are rolling elements that are opposite to the direction or angle of the - part skinny, and the occurrence of skinny is suppressed by the influence of these rolling elements. . Therefore, the rotation of the spherical roller (19) due to the occurrence of skinny can be inhibited, and a decrease in the life of the rolling element can be prevented. In the above embodiment, the washer (24) is used as the leg shaft (18).
We have explained the case where it is attached to the base, but the leg shaft (18
) may be attached to the tip or both the root and tip. As a result of comparing the torque required to rotate the spherical roller and the force required to move it in the axial direction when the spherical roller is rotated and the rolling elements are skewed, it was found that the washer according to the present invention The used one has a rotational torque of 30 to 50% of the conventional one, and a sliding resistance of 40 to 50%.
From the fact that the value of 0 or more decreased to 50%, it can be seen that the product of the present invention has little influence of skinny, is suitable for smoothly rotating a spherical roller, and improving the life of the rolling element.
以上説明したように、この発明によれば、脚軸とローラ
との間に介在した多数の転動体の端面を円周方向に波形
状の凹凸を設けたワッシャに接触させたので、継手が作
動角をとる動力の伝達時に生じていた転動体のスキュー
を抑制することができ、ラジアルスキマの減少（負スキ
マの発生）を軽減し、その時の軸方向すべり抵抗を小さ
くでき、ローラの回転を円滑に行わせ、転動体の寿命を
向上できる。As explained above, according to the present invention, the end surfaces of the many rolling elements interposed between the leg shaft and the roller are brought into contact with the washer having corrugated irregularities in the circumferential direction, so that the joint is activated. It is possible to suppress the skew of the rolling elements that occurs when transmitting power that takes an angle, reduce the decrease in radial clearance (occurrence of negative clearance), reduce the axial sliding resistance at that time, and smooth the rotation of the roller. This can improve the life of the rolling elements.
第１図はこの発明に係る等速自在継手の実施例を示す縦
断側面図、第２図は球面ローラ、転動体及びワッシャの
取付部分を取出しそれを拡大して示す断面図、第３図は
この発明のワッシャで（イ）は平面図、（ロ）はその側
面図、第４図はこの発明のワッシャの他の実施例を示す
側面図、第５図は転動体端面がワッシャの凹凸に接触し
ている状態を示す拡大図、第６図は従来の等速自在継手
を示す縦断側面図、第７図は同上継手の問題点説明のた
めの模式図である。Fig. 1 is a vertical sectional side view showing an embodiment of the constant velocity universal joint according to the present invention, Fig. 2 is a sectional view showing an enlarged view of the mounting portions of the spherical roller, rolling element and washer, and Fig. 3 is an enlarged cross-sectional view. In the washer of this invention, (A) is a plan view, (B) is a side view thereof, FIG. 4 is a side view showing another embodiment of the washer of this invention, and FIG. FIG. 6 is an enlarged view showing a state in which they are in contact, FIG. 6 is a longitudinal cross-sectional side view showing a conventional constant velocity universal joint, and FIG. 7 is a schematic diagram for explaining problems with the same joint.
Claims (1)
の内側に配置したトリボード部材には三本の円柱形脚軸
を突設し、各脚軸とそのまわりに嵌合したローラとの間
に転動体を介在し、上記ローラをトラッツ溝に係合して
外輪とトリボード部材間の回転運動を伝達するようにし
た等速自在継手において、上記転動体の端面と接する面
に、円周方向に波形状の凹凸を設けたワッシャを上記各
脚軸に装着したことを特徴とする等速自在継手。Three track grooves in the axial direction are formed on the inner surface of the outer ring, and three cylindrical leg shafts are protruded from the tri-board member placed inside the outer ring. In a constant velocity universal joint in which a rolling element is interposed between the rollers and the rollers are engaged with the truts grooves to transmit rotational motion between the outer ring and the tri-board member, a circular A constant velocity universal joint characterized in that a washer having wave-shaped unevenness in the circumferential direction is attached to each of the leg shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14741486A JPS636219A (en) | 1986-06-23 | 1986-06-23 | Constant velocity universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14741486A JPS636219A (en) | 1986-06-23 | 1986-06-23 | Constant velocity universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS636219A true JPS636219A (en) | 1988-01-12 |
Family
ID=15429762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14741486A Pending JPS636219A (en) | 1986-06-23 | 1986-06-23 | Constant velocity universal joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS636219A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5844051A (en) * | 1981-06-11 | 1983-03-14 | アンゲロ・ドツタ | Sealed pack for bandage adhering tape of wound |
-
1986
- 1986-06-23 JP JP14741486A patent/JPS636219A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5844051A (en) * | 1981-06-11 | 1983-03-14 | アンゲロ・ドツタ | Sealed pack for bandage adhering tape of wound |
| JPH0224538B2 (en) * | 1981-06-11 | 1990-05-29 | Dotsuta Angero |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0322577Y2 (en) | ||
| JPS61201925A (en) | Universal-joint | |
| JPS645164B2 (en) | ||
| JP6497077B2 (en) | Sliding constant velocity joint | |
| JPH0747971B2 (en) | Tripot type constant velocity joint | |
| JPH0232492B2 (en) | ||
| JPS636219A (en) | Constant velocity universal joint | |
| JP3060381B2 (en) | Constant velocity tripod joint | |
| JPH031529B2 (en) | ||
| JPH05321942A (en) | Slide type constant speed universal joint | |
| JP2813365B2 (en) | Constant velocity joint | |
| JPH0814289B2 (en) | Telescopic report universal joint | |
| JP2000039028A (en) | Slide type constant velocity joint | |
| JPH10246241A (en) | Tripod type constant velocity universal | |
| JP2004144240A (en) | Tripod type constant velocity universal joint | |
| JPS63318318A (en) | Tripod type isochronous joint using cylindrical roller | |
| JP2000291677A (en) | Tripod constant velocity universal joint | |
| KR102011896B1 (en) | Constant velocity joint of tripod type | |
| JPH0212326Y2 (en) | ||
| JPH03255226A (en) | Constant velocity joint | |
| JP2000027880A (en) | Constant velocity universal joint | |
| JPH0331856Y2 (en) | ||
| JP3976358B2 (en) | Tripod type constant velocity joint | |
| JPH04254019A (en) | Slide type constant velocity joint | |
| JP2000291678A (en) | Tripod constant velocity universal joint |