JP3302868B2 - Universal joint - Google Patents
Universal jointInfo
- Publication number
- JP3302868B2 JP3302868B2 JP31409595A JP31409595A JP3302868B2 JP 3302868 B2 JP3302868 B2 JP 3302868B2 JP 31409595 A JP31409595 A JP 31409595A JP 31409595 A JP31409595 A JP 31409595A JP 3302868 B2 JP3302868 B2 JP 3302868B2
- Authority
- JP
- Japan
- Prior art keywords
- universal joint
- needle roller
- journal
- seal ring
- shaft
- 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 - Fee Related
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
- F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
- F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
- F16D3/40—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes
- F16D3/41—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes with ball or roller bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、十字軸の４個の各
ジャーナル軸部と軸受ケーシングとの間にニードルロー
ラを配置し、前記軸受ケーシングの端部と前記ジャーナ
ル軸部の基部との間にシール環を設けたユニバーサルジ
ョイントに関するものである。The present invention relates to a needle roller disposed between four journal shafts of a cross shaft and a bearing casing, and a needle roller is provided between an end of the bearing casing and a base of the journal shaft. And a universal joint provided with a seal ring.
【０００２】[0002]
【従来の技術】図１の（ａ）に示す従来のユニバーサル
ジョイント１にあっては、図１（ｂ）に示すように、十
字軸２のジャーナル軸部３におけるニードルローラの支
持面は、軸受ケーシング４の端部とジャーナル軸部３の
基部との間に設けるシール環５側からジャーナル軸部３
の端面に至るまでストレートに延ばし、ニードルローラ
６の端部は、ジャーナル軸部３の端面とほぼ同一平面上
に整列する構成となっていた。2. Description of the Related Art In a conventional universal joint 1 shown in FIG. 1A, as shown in FIG. 1B, a support surface of a needle roller in a journal shaft portion 3 of a cross shaft 2 is a bearing. From the side of the seal ring 5 provided between the end of the casing 4 and the base of the journal shaft 3, the journal shaft 3
And the end of the needle roller 6 is arranged substantially flush with the end of the journal shaft 3.
【０００３】[0003]
【発明が解決しようとする課題】しかし、従来のユニバ
ーサルジョイントにおいては、ユニバーサルジョイント
が回転運動すると、ジャーナル軸部３の端面の面取り部
の角部及び軸受ケーシングの底面隅部の面取り部の角部
（図１の（ｃ）参照）が、ニードルローラ６の端部の近
傍にエッジロードが発生して環状の傷を生じ、フレッテ
ィング、フレーキング等の起点となるという欠点があっ
た。However, in the conventional universal joint, when the universal joint rotates, the corner of the chamfer on the end face of the journal shaft 3 and the corner of the chamfer at the bottom corner of the bearing casing 3 are rotated. (See FIG. 1 (c).) However, there is a disadvantage that an edge load is generated near the end of the needle roller 6 and an annular flaw is generated, which becomes a starting point of fretting, flaking and the like.
【０００４】更に、十字軸の軸線と軸受ケーシングの軸
線とが角度をなしてユニバーサルジョイントが回転する
とき、ニードルローラ６は自転、公転をしながら、回転
中心方向（シール環の方向）にせり上がるスキュー現象
を生ずる。この結果、シール環５の破損を生じたり、場
合によってはニードルローラ６の転動不良を引き起こ
し、寿命の低下を招く原因ともなっていた。Further, when the axis of the cross shaft and the axis of the bearing casing make an angle with each other to rotate the universal joint, the needle roller 6 rotates and revolves and rises in the direction of the rotation center (the direction of the seal ring). A skew phenomenon occurs. As a result, the seal ring 5 may be damaged, or in some cases, the rolling of the needle roller 6 may be poor, leading to a reduction in life.
【０００５】従って、本発明の目的は、このような欠点
のないユニバーサルジョイントを得るにある。Accordingly, it is an object of the present invention to provide a universal joint free of such disadvantages.
【０００６】[0006]
【課題を解決するための手段】この目的を達成するた
め、本発明ユニバーサルジョイントは、前記ジャーナル
軸部の端部とシール環との間の中間位置で、前記ジャー
ナル軸部の各々の周囲にニードルローラを収容する段差
窪みを設けたことを特徴とする。In order to achieve this object, the universal joint of the present invention comprises a needle around each of the journal shafts at an intermediate position between an end of the journal shaft and a seal ring. A step recess for accommodating the roller is provided.
【０００７】[0007]
【発明の実施の形態】本発明ユニバーサルジョイントの
好適な実施の形態としては、前記段差窪みの深さを、ｄ
をニードルローラの直径としたとき、０．４〜０．９５
ｄとなるように形成する。BEST MODE FOR CARRYING OUT THE INVENTION As a preferred embodiment of the universal joint of the present invention, the depth of the step recess is represented by d.
Is the diameter of the needle roller, 0.4 to 0.95
It is formed so as to be d.
【０００８】本発明のこの構成によれば、各ジャーナル
軸部の周囲に設けた段差窪みにニードルローラが確実に
嵌合して抜けを確実に防止し、ニードルローラの上下方
向の動きを抑えかつニードルローラの軸線を十字軸の各
軸線に平行に維持してニードルローラの倒れ（ねじれ方
向の傾き）を防止する。According to this configuration of the present invention, the needle roller is securely fitted into the stepped recess provided around each journal shaft portion, thereby securely preventing the needle roller from coming off, suppressing the vertical movement of the needle roller, and The axis of the needle roller is maintained parallel to each axis of the cross shaft to prevent the needle roller from falling (tilting in the twisting direction).
【０００９】[0009]
【実施例】次に、図面につき本発明の好適な実施例を説
明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.
【００１０】図２に本発明ユニバーサルジョイントの好
適な実施例を示す。この図面において、図１の従来のユ
ニバーサルジョイントと同一部分に対して同一の参照符
号を使用して説明する。FIG. 2 shows a preferred embodiment of the universal joint of the present invention. In this drawing, the same portions as those of the conventional universal joint of FIG. 1 will be described using the same reference numerals.
【００１１】本発明によれば、ユニバーサルジョイント
の十字軸２のジャーナル軸部３の端部とシール環５との
間の中間位置で、ジャーナル軸部３の各々の周囲にニー
ドルローラ６を収容する環状の段差窪み７を設ける。According to the present invention, the needle roller 6 is accommodated around each of the journal shafts 3 at an intermediate position between the end of the journal shaft 3 of the cross shaft 2 of the universal joint and the seal ring 5. An annular step recess 7 is provided.
【００１２】この段差窪み７の深さは、ニードルローラ
６の直径をｄとした場合、０．４〜０．９５ｄとなるよ
うに形成すると好適である。The depth of the step recess 7 is preferably formed to be 0.4 to 0.95 d when the diameter of the needle roller 6 is d.
【００１３】[0013]
【発明の効果】本発明によれば、ニードルローラを支持
するジャーナル軸部の周面に段差窪みを設け、この段差
窪みを設ける位置をジャーナル軸部の端部とシール環と
の間の中間位置としたため、段差窪みの軸線方向の各端
部はそれぞれジャーナル軸部の端面およびシール環から
離れた位置で終端し、ニードルローラには図１の（ｃ）
に示すようなエッジロードが発生せず、従って、フレッ
ティングやフレーキング等を回避することができ、ま
た、上述のスキュー現象や倒れ（ねじれ方向の傾き）現
象も確実に防止することができ、従って、シール環の破
損や転動不良も回避することができる。According to the present invention, a step recess is provided on the peripheral surface of the journal shaft supporting the needle roller, and the position where the step recess is provided is defined as an intermediate position between the end of the journal shaft and the seal ring. Therefore, each end in the axial direction of the step recess terminates at a position away from the end face of the journal shaft and the seal ring, respectively, and the needle roller is provided in FIG.
Does not occur, and therefore fretting and flaking can be avoided, and the above-mentioned skew phenomenon and falling (inclination in the twisting direction) can be reliably prevented. Therefore, breakage of the seal ring and poor rolling can be avoided.
【図１】従来のユニバーサルジョイントの説明図であ
り、（ａ）はユニバーサルジョイントの側面図、（ｂ）
は十字軸のジャーナル軸部の部分の部分縦断面図、
（ｃ）はこの（ｂ）のサークル部分Ｃの拡大部分断面図
である。FIG. 1 is an explanatory view of a conventional universal joint, where (a) is a side view of the universal joint and (b)
Is a partial vertical sectional view of the journal shaft part of the cross shaft,
(C) is an enlarged partial sectional view of the circle portion C of (b).
【図２】（ａ）は本発明によるユニバーサルジョイント
の十字軸のジャーナル軸部の部分の部分縦断面図、
（ｂ）は十字軸のジャーナル軸部の一部のみの部分断面
図である。FIG. 2A is a partial longitudinal sectional view of a journal shaft portion of a cross shaft of a universal joint according to the present invention,
(B) is a partial sectional view of only a part of the journal shaft portion of the cross shaft.
１ ユニバーサルジョイント ２ 十字軸 ３ ジャーナル軸部 ４ 軸受ケーシング ５ シール環 ６ ニードルローラ ７ 段差窪み DESCRIPTION OF SYMBOLS 1 Universal joint 2 Cross shaft 3 Journal shaft part 4 Bearing casing 5 Seal ring 6 Needle roller 7 Step recess
Claims (2)
ケーシングとの間にニードルローラを配置し、前記軸受
ケーシングの端部と前記ジャーナル軸部の基部との間に
シール環を設けたユニバーサルジョイントにおいて、前
記ジャーナル軸部の端部とシール環との間の中間位置
で、前記ジャーナル軸部の各々の周囲にニードルローラ
を収容する段差窪みを設けたことを特徴とするユニバー
サルジョイント。1. A needle roller is disposed between each of four journal shafts of a cross shaft and a bearing casing, and a seal ring is provided between an end of the bearing casing and a base of the journal shaft. A universal joint, wherein a stepped recess for accommodating a needle roller is provided around each of the journal shaft portions at an intermediate position between an end of the journal shaft portion and a seal ring.
ーラの直径としたとき、０．４〜０．９５ｄとなるよう
に形成した請求項１記載のユニバーサルジョイント。2. The universal joint according to claim 1, wherein the depth of the step recess is formed to be 0.4 to 0.95 d when d is the diameter of the needle roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31409595A JP3302868B2 (en) | 1995-12-01 | 1995-12-01 | Universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31409595A JP3302868B2 (en) | 1995-12-01 | 1995-12-01 | Universal joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09151958A JPH09151958A (en) | 1997-06-10 |
| JP3302868B2 true JP3302868B2 (en) | 2002-07-15 |
Family
ID=18049188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31409595A Expired - Fee Related JP3302868B2 (en) | 1995-12-01 | 1995-12-01 | Universal joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3302868B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322934A (en) * | 2018-11-16 | 2019-02-12 | 万向钱潮股份有限公司 | A kind of high-mechanic long-life Hooke's joint |
| CN110094430A (en) * | 2019-05-05 | 2019-08-06 | 万向钱潮股份有限公司 | A kind of part needle-type heavy-duty universal section |
| CN111766202B (en) * | 2020-08-17 | 2021-10-01 | 吉林大学 | Multi-test-piece bonding joint tension-compression fatigue test device considering temperature influence |
| CN114934956B (en) * | 2022-06-07 | 2024-07-23 | 西安新三鸣汽车零部件有限责任公司 | Universal joint structure |
-
1995
- 1995-12-01 JP JP31409595A patent/JP3302868B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09151958A (en) | 1997-06-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |