JP2527588Y2 - Drive shaft - Google Patents
Drive shaftInfo
- Publication number
- JP2527588Y2 JP2527588Y2 JP3955991U JP3955991U JP2527588Y2 JP 2527588 Y2 JP2527588 Y2 JP 2527588Y2 JP 3955991 U JP3955991 U JP 3955991U JP 3955991 U JP3955991 U JP 3955991U JP 2527588 Y2 JP2527588 Y2 JP 2527588Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft member
- ball
- head
- retainer 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
Landscapes
- Pivots And Pivotal Connections (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、駆動側から被駆動側へ
角度が付いた状態でも動力を伝達することができる駆動
軸に関するものである。例えば、農業用トラクタの原動
機側と作業機側との間の動力伝達機構として使用する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive shaft capable of transmitting power even when an angle is formed from a driving side to a driven side. For example, it is used as a power transmission mechanism between a prime mover side and a working machine side of an agricultural tractor.
【０００２】[0002]
【従来の技術】従来は、このように角度が付いた状態で
駆動側から被駆動側に動力を伝達するには、ユニバーサ
ルジョイントが使用されていた。2. Description of the Related Art Conventionally, a universal joint has been used to transmit power from a driving side to a driven side in such an angled state.
【０００３】[0003]
【考案が解決しようとする課題】しかし、従来のユニバ
ーサルジョイントは、十字軸を用いているため、(1) 駆
動側から被駆動側への角度を大きくとれない、(2) 回転
径および軸線方向の長さが大きく、従って、占有スペー
スが大きくなる、(3) 十字軸とヨークとの組み付け作業
が面倒であるという欠点があった。従って、本考案の目
的は、十字軸を使用するユニバーサルジョイントの欠点
を解決する駆動軸を得るにある。[Problems to be solved by the present invention] However, since the conventional universal joint uses a cross shaft, (1) the angle from the driving side to the driven side cannot be made large, (2) the rotating diameter and the axial direction (3) The assembling work of the cross shaft and the yoke is troublesome. Accordingly, an object of the present invention is to provide a drive shaft that solves the disadvantages of a universal joint using a cross shaft.
【０００４】[0004]
【課題を解決するための手段】上述の目的を達成するた
め、本考案による駆動軸においては、一方の端部にほぼ
球形のヘッドを有する第１軸部材と、一方の端部に前記
第１軸部材のヘッドを収容するヘッド収容部を有する第
２軸部材とを具え、前記第１軸部材のヘッドの周縁に
は、互いに等角度間隔離して第１軸部材の軸線と平行な
方向にに所要の長さの円弧にわたり形成した少なくとも
２個のボール収容溝を設け、前記第２軸部材のヘッド収
容部には、前記ヘッド収容部の縮小外径部に螺合するね
じ部および前記第１軸部材のヘッドの直径よりも小さい
直径の端縁開口を有しかつ前記ヘッドの一部の球面輪郭
に対応する内面を有するボール掛合部よりなるリテーナ
リングと、前記ボール収容溝に対応する角度間隔で設
け、前記リテーナリングのねじ部および前記ヘッド収容
部の縮小外径部を貫通する少なくとも２個のボール押さ
えねじ孔と、前記ボール押さえねじ孔に螺合するボール
押さえねじと、前記ヘッド収容部の内面に潤滑油を供給
する潤滑油供給手段と、前記リテーナリングの開口の端
縁に設けたオイルシールとを設け、前記ボール押さえね
じと前記ボール収容溝との間にボール収容溝の深さより
も大きい直径のボールを配置したことを特徴とする。In order to achieve the above object, a drive shaft according to the present invention has a first shaft member having a substantially spherical head at one end and the first shaft member at one end. A second shaft member having a head accommodating portion for accommodating the head of the shaft member, wherein a peripheral edge of the head of the first shaft member is spaced apart by an equal angle from each other in a direction parallel to the axis of the first shaft member. At least two ball receiving grooves formed over an arc of a required length are provided. The head receiving portion of the second shaft member has a threaded portion screwed to a reduced outer diameter portion of the head receiving portion and the first A retainer ring comprising a ball engaging portion having an edge opening having a diameter smaller than the diameter of the head of the shaft member and having an inner surface corresponding to a spherical contour of a part of the head; and an angular interval corresponding to the ball receiving groove. Provided by the retainer At least two ball holding screw holes penetrating the screw portion and the reduced outer diameter portion of the head housing portion, a ball holding screw screwed into the ball holding screw hole, and lubricating oil on the inner surface of the head housing portion. A lubricating oil supply means for supplying and an oil seal provided at an edge of the opening of the retainer ring are provided, and a ball having a diameter larger than the depth of the ball receiving groove is provided between the ball holding screw and the ball receiving groove. It is characterized by being arranged.
【０００５】[0005]
【作用】本考案のこの構成によれば、第２軸部材のリテ
ーナリングを外した状態で、第１軸部材の球形ヘッドを
第２軸部材のヘッド収容部に嵌合させる。次に、リテー
ナリングを第２軸部材のねじ部にボール押さえねじ孔が
整列するようねじ付けることによって第１軸部材が第２
軸部材から抜けないようにする。リテーナリングのボー
ル押さえねじ孔、第２軸部材のねじ部、および第１軸部
材のボール収容溝とが整列した状態でボール押さえねじ
孔からボールを入れた後ボール押さえねじをボールに接
触するまでボール押さえねじ孔にねじ込むことによって
簡単にこの駆動軸を組み立てることができる。According to this configuration of the present invention, the spherical head of the first shaft member is fitted into the head accommodating portion of the second shaft member with the retainer ring of the second shaft member removed. Next, the first shaft member is fixed to the second shaft member by screwing the retainer ring to the threaded portion of the second shaft member so that the ball holding screw holes are aligned.
Make sure it does not come off the shaft member. After inserting the ball from the ball holding screw hole with the ball holding screw hole of the retainer ring, the screw portion of the second shaft member, and the ball receiving groove of the first shaft member aligned, contact the ball holding screw with the ball. This drive shaft can be easily assembled by screwing it into the ball holding screw hole.
【０００６】第１軸部材の球形ヘッドのボール収容溝、
および第２軸部材のヘッド収容部のボール押さえねじに
より限定される空間の双方に嵌合するボールにより一方
の軸から他方の軸に動力を伝達する。A ball receiving groove of the spherical head of the first shaft member,
Power is transmitted from one shaft to the other shaft by a ball that fits into both the space defined by the ball holding screw of the head housing portion of the second shaft member and the second shaft member.
【０００７】また、第１軸部材の円弧状のボール収容溝
の長さにわたり２軸間の角度を付けることを可能にす
る。Further, it is possible to make an angle between the two axes over the length of the arc-shaped ball receiving groove of the first shaft member.
【０００８】更に、第２軸部材に設けた潤滑油供給手段
によりヘッド収容部の内面に供給された潤滑油により、
第１軸部材の球形ヘッド、第２軸部材のヘッド収容部の
内面、および両軸間のボールの潤滑が行われ、焼け付き
および摩耗が防止される。更にまた、リテーナリングの
開口の端縁に設けたオイルシールにより、潤滑油の漏れ
を防止し、また外部へ飛び散って周囲を汚すのを防止す
る。Further, the lubricating oil supplied to the inner surface of the head accommodating portion by the lubricating oil supplying means provided on the second shaft member,
Lubrication of the spherical head of the first shaft member, the inner surface of the head accommodating portion of the second shaft member, and the ball between both shafts is performed, and seizure and wear are prevented. Further, the oil seal provided at the edge of the opening of the retainer ring prevents the leakage of the lubricating oil and prevents the oil from scattering to the outside and contaminating the surroundings.
【０００９】[0009]
【実施例】次に、図面につき本考案の好適な実施例を説
明する。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a preferred embodiment of the present invention.
【００１０】図１および図２に本考案の好適な第１の実
施例を示す。第１軸部材１の一方の端部には球形ヘッド
２を設ける。第１軸部材１のヘッド２の周縁には、互い
に等角度間隔離して第１軸部材の軸線と平行な方向にに
所要の長さの円弧にわたり形成した少なくとも２個のボ
ール収容溝３を設ける。図１および図２に示す第１の実
施例においては、４個のボール収容溝３を設ける。FIGS. 1 and 2 show a first preferred embodiment of the present invention. A spherical head 2 is provided at one end of the first shaft member 1. At least two ball receiving grooves 3 are formed in the peripheral edge of the head 2 of the first shaft member 1 and formed at equal intervals from each other and formed in a direction parallel to the axis of the first shaft member and over a circular arc of a required length. . In the first embodiment shown in FIGS. 1 and 2, four ball receiving grooves 3 are provided.
【００１１】第２軸部材４には、第１軸部材のヘッド２
を僅かなクリアランスを持って収容するヘッド収容部５
を設ける。ヘッド収容部５の第１軸部材１に対向する端
部をねじ山付きの縮小外径部６とする。更に、第２軸部
材４には、縮小外径部６に螺合するねじ部７および第１
軸部材のヘッド２の直径よりも小さい直径の開口端縁10
ａ、10ｂを有しかつヘッド２の一部の球面輪郭に対応す
る内面８を有するボール掛合部９よりなるリテーナリン
グ10を設ける。The second shaft member 4 includes the head 2 of the first shaft member.
Housing part 5 that accommodates with a slight clearance
Is provided. The end of the head housing 5 facing the first shaft member 1 is a reduced outer diameter portion 6 with a thread. Further, the second shaft member 4 has a screw portion 7 screwed to the reduced outer diameter portion 6 and a first
The opening edge 10 having a diameter smaller than the diameter of the head 2 of the shaft member
A retainer ring 10 comprising a ball engaging portion 9 having a, 10b and an inner surface 8 corresponding to the spherical contour of a part of the head 2 is provided.
【００１２】更に、第２軸部材４の縮小外径部６および
リテーナリング10のねじ部７には、それぞれ第１軸部材
１のボール収容溝３に対応する角度間隔でボール収容溝
３と同じ数のボール押さえねじ孔11ａ、11ｂを設ける。
リテーナリングのねじ部７のボール押さえねじ孔11ｂと
第２軸部材４の縮小外径部６のボール押さえねじ孔11ａ
とが整列するようリテーナリング10を第２軸部材４の縮
小外径部６にねじ付ける。ボール押さえねじ孔11ａ、11
ｂが整列した状態でこのボール押さえねじ孔にボール押
さえねじ12を螺合することができる。Further, the reduced outer diameter portion 6 of the second shaft member 4 and the threaded portion 7 of the retainer ring 10 are the same as the ball housing grooves 3 at angular intervals corresponding to the ball housing grooves 3 of the first shaft member 1, respectively. A number of ball holding screw holes 11a and 11b are provided.
A ball holding screw hole 11b of the screw portion 7 of the retainer ring and a ball holding screw hole 11a of the reduced outer diameter portion 6 of the second shaft member 4.
The retainer ring 10 is screwed to the reduced outer diameter portion 6 of the second shaft member 4 so that is aligned. Ball holding screw holes 11a, 11
The ball holding screw 12 can be screwed into the ball holding screw hole in a state where b is aligned.
【００１３】更にまた、第２軸部材４には、ヘッド収容
部の内面に潤滑油を供給する潤滑油供給手段としてのニ
ップル13および給油導管14を設け、リテーナリング10の
開口端縁10ａに設けたオイルシール15を設ける。第１軸
部材１の球形のヘッド２の第１軸部材の軸線と交差する
ヘッド頂点に窪み16を設け、この頂点の窪み16から各ボ
ール収容溝６まで達する油路チャンネル17を設けるとよ
い（図３のa,b 参照）。給油導管14は、ヘッド収容部５
の内面の第２軸部材４の軸線に交差する部分に開口させ
るとよい。Further, the second shaft member 4 is provided with a nipple 13 and a lubricating conduit 14 as lubricating oil supply means for supplying lubricating oil to the inner surface of the head accommodating portion, and is provided on an opening edge 10a of the retainer ring 10. An oil seal 15 is provided. A depression 16 is provided at the head apex of the spherical head 2 of the first shaft member 1 that intersects with the axis of the first shaft member, and an oil passage channel 17 is provided from the depression 16 at the apex to each of the ball receiving grooves 6 ( (See FIG. 3, a and b). The refueling conduit 14 is provided in the head housing 5
It is preferable to make an opening at a portion of the inner surface that intersects the axis of the second shaft member 4.
【００１４】ボール押さえねじ12とボール収容溝３との
間にボール収容溝３の深さよりも大きい直径のボール18
を配置する。A ball 18 having a diameter larger than the depth of the ball receiving groove 3 is provided between the ball holding screw 12 and the ball receiving groove 3.
Place.
【００１５】第１軸部材１と第２軸部材４との組み付け
は、リテーナリング10を第２軸部材４にねじ付けない状
態で、第１軸部材１を第２軸部材４に嵌合させる。次
に、リテーナリング10を第２軸部材の縮小外径部６にボ
ール押さえねじ孔11ａ、11ｂが整列するようねじ付け、
リテーナリング10のヘッド掛合部９により、第１軸部材
１が第２軸部材４から抜けないようにする。リテーナリ
ングのねじ部７のボール押さえねじ孔11ｂ、第２軸部材
の縮小外径部のボール押さえねじ孔11ａ、および第１軸
部材１のボール収容溝３とが整列した状態で、ボール押
さえねじ孔からボール18を入れ、ボール収容溝３の底部
に着床させた後、ボール押さえねじ12をボール18に接触
するまでボール押さえねじ孔11ａおよび11ｂにねじ込む
ことによって簡単にこの駆動軸を組み立てることができ
る。このボール押さえねじ12は、ボール18の押さえの作
用と、リテーナリング10を第２軸部材４に固定する止め
ねじとしても作用する。When assembling the first shaft member 1 and the second shaft member 4, the first shaft member 1 is fitted to the second shaft member 4 while the retainer ring 10 is not screwed to the second shaft member 4. . Next, the retainer ring 10 is screwed onto the reduced outer diameter portion 6 of the second shaft member so that the ball holding screw holes 11a and 11b are aligned.
The head engaging portion 9 of the retainer ring 10 prevents the first shaft member 1 from coming off the second shaft member 4. With the ball holding screw hole 11b of the screw portion 7 of the retainer ring, the ball holding screw hole 11a of the reduced outer diameter portion of the second shaft member, and the ball receiving groove 3 of the first shaft member 1 aligned, the ball holding screw is The drive shaft is easily assembled by inserting the ball 18 through the hole, landing on the bottom of the ball receiving groove 3, and then screwing the ball holding screw 12 into the ball holding screw holes 11 a and 11 b until the ball holding screw 12 contacts the ball 18. Can be. The ball pressing screw 12 functions to hold the ball 18 and also functions as a set screw for fixing the retainer ring 10 to the second shaft member 4.
【００１６】ボール押さえねじ12には、図４に示すよう
に、四角形または六角形断面のねじ回し孔12ａを設け、
ボールとの接触面は、図４の（ａ）に示すように平面に
したり、図４の（ｂ）に示すように球状凹面にしたり、
図４の（ｃ）に示すように球状凹面を有する押さえ部材
19を介在させることもできる。更に、ボール押さえねじ
12と押さえ部材19との間に弾性部材例えば、コイルばね
を介在させることもできる。ボール収容溝およびボール
押さえねじ孔は適当な数だけ設けておき、すべてのボー
ル収容溝−ボール押さえねじ孔対にボールを収容せず
に、伝達すべきトルクの大きさに応じた数のボールを収
容することもできる。As shown in FIG. 4, the ball holding screw 12 is provided with a screwdriver hole 12a having a square or hexagonal cross section.
The contact surface with the ball may be a flat surface as shown in FIG. 4A, a spherical concave surface as shown in FIG.
A holding member having a spherical concave surface as shown in FIG.
19 can also be interposed. In addition, ball holding screw
An elastic member, for example, a coil spring can be interposed between the pressing member 12 and the pressing member 19. An appropriate number of ball receiving grooves and ball holding screw holes are provided, and the number of balls corresponding to the magnitude of the torque to be transmitted is not accommodated in all the ball receiving groove-ball holding screw hole pairs. Can be accommodated.
【００１７】第１軸部材１および第２軸部材４は、それ
ぞれ種々の連結方法で駆動トレインにおける他の軸に連
結することができる。例えば、軸端部の形状を丸形、四
角形状、レモン形状、またはセレーション形状にして対
応形状の抜差嵌合自在の他の軸とピン連結したり、ねじ
連結したり、またはスプライン連結したりすることがで
きる。The first shaft member 1 and the second shaft member 4 can be respectively connected to other shafts in the drive train by various connection methods. For example, the shape of the shaft end is round, square, lemon, or serrated, and is pin-connected, screw-connected, or spline-connected to another shaft of the corresponding shape that can be slip-fitted. can do.
【００１８】更に、第２軸部材４相互を連結し、この第
２軸部材組立体の両端にそれぞれ第１軸部材１を本考案
により連結することもできる。例えば、図５の（ａ）に
示すように、第２軸部材４相互を抜差嵌合する矩形形状
（図５の(b) ）、レモン形状（図５の(c) ）またはスプ
ライン形状（図５の(d) ）の雄部材20および雌部材21を
介して連結する。この第２軸部材相互の組立体22を可撓
性の安全カバー23でカバーし、組立体22の両側には、上
述したようにして第１軸部材１をそれぞれ組み付け、一
方の駆動源側に連結した第１軸部材１から第２軸部材組
立体22を介して他方の被駆動側に連結した第１軸部材１
に角度が付いた状態でも、また伸縮自在に駆動力を伝達
することができる。Further, the second shaft members 4 may be connected to each other, and the first shaft members 1 may be connected to both ends of the second shaft member assembly according to the present invention. For example, as shown in FIG. 5A, a rectangular shape (FIG. 5B), a lemon shape (FIG. 5C), or a spline shape (FIG. 5C) in which the second shaft members 4 are inserted and fitted with each other. The connection is made via the male member 20 and the female member 21 shown in FIG. The assembly 22 of the second shaft members is covered with a flexible safety cover 23, and the first shaft member 1 is assembled on both sides of the assembly 22 as described above, and the other drive source side is The first shaft member 1 connected to the other driven side from the connected first shaft member 1 via the second shaft member assembly 22
The driving force can be transmitted in a telescopic manner even when the vehicle is at an angle.
【００１９】[0019]
【考案の効果】本考案によれば、球形ヘッドを有する第
１軸部材と、この球形ヘッドを収容するヘッド収容部を
有する第２軸部材との掛合させ、第１軸部材と第２軸部
材との境界部に両者に掛合するトルク伝達用ボールを設
け、ボールを第１軸部材に設けたボール収容溝に沿って
転動できる構成としたため、従来のユニバーサルジョイ
ントよりも大きな角度を付けて一方の軸から他方の軸に
駆動力を伝達することができるとともに、従来のユニバ
ーサルジョイントよりも大きなトルクをしかも等速で伝
達することができる。第１軸部材と第２軸部材のなす最
大角度は、ボール収容溝の長さに従って、０〜９０°の
任意の角度にすることができる。更に、ボールを介して
の点接触による駆動連結のため伝達効率がよい。According to the present invention, the first shaft member having the spherical head and the second shaft member having the head accommodating portion for accommodating the spherical head are engaged with each other, and the first shaft member and the second shaft member are engaged. A torque transmission ball is provided at the boundary between the two, and the ball can be rolled along a ball receiving groove provided in the first shaft member. The driving force can be transmitted from one shaft to the other shaft, and a larger torque than that of the conventional universal joint can be transmitted at a constant speed. The maximum angle between the first shaft member and the second shaft member can be set to an arbitrary angle of 0 to 90 ° according to the length of the ball housing groove. Furthermore, the transmission efficiency is good because of the drive connection by point contact via the ball.
【００２０】また、第２軸部材には、第１軸部材の球形
ヘッドを保持するリテーナリングを着脱自在に取付ける
構成としたため、ボール数をトルクに応じて任意に選択
可能にし、またいつでも組み立ておよび取り外しが簡単
に行えるとともに、リテーナリングのボール掛合部は十
分な機械的強度のある設計にすることが自由にできるた
め、大きなスラスト力にも耐えられる構成とすることが
できる。Also, since the retainer ring for holding the spherical head of the first shaft member is detachably attached to the second shaft member, the number of balls can be arbitrarily selected according to the torque. The retainer ring can be easily detached, and the retainer ring can be freely designed to have sufficient mechanical strength, so that it can be configured to withstand a large thrust force.
【００２１】更に、ボール押さえねじは、ボールを押さ
える作用の他にリテーナリングと第２軸部材との螺合の
緩みを防止する作用も行い、信頼性の高い構造となる。
またボールが摩耗したとき、ボール押さえねじを摩耗分
だけ増し締めすることにより軸部材間のがたを打ち消す
ことができ、摩耗時の異音および振動の発生を防止する
ことができる。Further, the ball holding screw also has a function of preventing loosening of the screw engagement between the retainer ring and the second shaft member, in addition to a function of holding the ball, thereby providing a highly reliable structure.
Further, when the ball is worn, the backlash between the shaft members can be canceled by tightening the ball holding screw by the amount of wear, thereby preventing generation of abnormal noise and vibration at the time of wear.
【００２２】更に、本考案の駆動軸によれば、従来のユ
ニバーサルジョイントよりも回転径および軸線方向の長
さを小さくでき、装置を小形にすることができ、製造コ
ストも低減することができる。Further, according to the drive shaft of the present invention, the rotation diameter and the length in the axial direction can be made smaller than those of the conventional universal joint, so that the apparatus can be downsized and the manufacturing cost can be reduced.
【図１】本考案による駆動軸の第１の実施例の図２にお
けるＩ−Ｉ線上の縦断面図である。FIG. 1 is a longitudinal sectional view of a first embodiment of a drive shaft according to the present invention, taken along the line II in FIG. 2;
【図２】本考案による駆動軸の図１におけるII−II線上
の縦断面図である。FIG. 2 is a longitudinal sectional view of the drive shaft according to the present invention taken along line II-II in FIG. 1;
【図３】（ａ）は第１軸部材の側面図であり、（ｂ）は
第１軸部材の端面図である。FIG. 3A is a side view of a first shaft member, and FIG. 3B is an end view of the first shaft member.
【図４】（ａ）はボール押さえねじの第１実施例の線図
的側面図であり、（ｂ）はボール押さえねじの第２実施
例とボールを示す線図的側面図であり、（ｃ）はボール
押さえねじの第３実施例とボールを示す線図的側面図で
ある。4A is a diagrammatic side view of a first embodiment of a ball press screw, FIG. 4B is a diagrammatic side view of a second embodiment of the ball press screw and a ball, and FIG. c) is a diagrammatic side view showing a third embodiment of the ball holding screw and the ball.
【図５】本考案による駆動軸の応用例の線図的縦断面図
である。FIG. 5 is a schematic longitudinal sectional view of an application example of the drive shaft according to the present invention.
１ 第１軸部材 ２ 球形ヘッド ３ ボール収容溝 ４ 第２軸部材 ５ ヘッド収容部 ６ 縮小外径部 ７ ねじ部 ８ 内面 ９ ボール掛合部 10 リテーナリング 10a,10b 開口端縁 11a,11b ボール押さえねじ孔 12 ボール押さえねじ 13 ニップル 14 給油導管 15 オイルシール 16 窪み 17 油路チャンネル 18 ボール 19 押さえ部材 20 雄部材 21 雌部材 22 第２軸組立体 23 安全カバー REFERENCE SIGNS LIST 1 first shaft member 2 spherical head 3 ball receiving groove 4 second shaft member 5 head receiving portion 6 reduced outer diameter portion 7 screw portion 8 inner surface 9 ball engaging portion 10 retainer ring 10a, 10b opening edge 11a, 11b ball holding screw Hole 12 Ball holding screw 13 Nipple 14 Oil supply conduit 15 Oil seal 16 Depression 17 Oil passage channel 18 Ball 19 Holding member 20 Male member 21 Female member 22 Second shaft assembly 23 Safety cover
Claims (1)
１軸部材と、一方の端部に前記第１軸部材のヘッドを収
容するヘッド収容部を有する第２軸部材とを具え、前記
第１軸部材のヘッドの周縁には、互いに等角度間隔離し
て第１軸部材の軸線と平行な方向にに所要の長さの円弧
にわたり形成した少なくとも２個のボール収容溝を設
け、前記第２軸部材のヘッド収容部には、前記ヘッド収
容部の縮小外径部に螺合するねじ部および前記第１軸部
材のヘッドの直径よりも小さい直径の端縁開口を有しか
つ前記ヘッドの一部の球面輪郭に対応する内面を有する
ボール掛合部よりなるリテーナリングと、前記ボール収
容溝に対応する角度間隔で設け、前記リテーナリングの
ねじ部および前記ヘッド収容部の縮小外径部を貫通する
少なくとも２個のボール押さえねじ孔と、前記ボール押
さえねじ孔に螺合するボール押さえねじと、前記ヘッド
収容部の内面に潤滑油を供給する潤滑油供給手段と、前
記リテーナリングの開口の端縁に設けたオイルシールと
を設け、前記ボール押さえねじと前記ボール収容溝との
間にボール収容溝の深さよりも大きい直径のボールを配
置したことを特徴とする駆動軸。A first shaft member having a substantially spherical head at one end; and a second shaft member having a head housing portion for housing the head of the first shaft member at one end. The peripheral edge of the head of the first shaft member is provided with at least two ball accommodating grooves formed over a circular arc of a required length in a direction parallel to the axis of the first shaft member and separated by an equal angle from each other, The head accommodating portion of the second shaft member has a screw portion screwed to a reduced outer diameter portion of the head accommodating portion and an edge opening having a diameter smaller than the diameter of the head of the first shaft member, and A retainer ring composed of a ball engaging portion having an inner surface corresponding to a part of the spherical contour, and provided at an angular interval corresponding to the ball accommodating groove, a screw portion of the retainer ring and a reduced outer diameter portion of the head accommodating portion. At least two holes Screw holes, ball press screws screwed into the ball press screw holes, lubricating oil supply means for supplying lubricating oil to the inner surface of the head accommodating portion, and oil provided at an edge of an opening of the retainer ring. A drive shaft provided with a seal, and a ball having a diameter larger than a depth of the ball receiving groove is arranged between the ball holding screw and the ball receiving groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3955991U JP2527588Y2 (en) | 1991-05-01 | 1991-05-01 | Drive shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3955991U JP2527588Y2 (en) | 1991-05-01 | 1991-05-01 | Drive shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04126026U JPH04126026U (en) | 1992-11-17 |
| JP2527588Y2 true JP2527588Y2 (en) | 1997-03-05 |
Family
ID=31920822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3955991U Expired - Fee Related JP2527588Y2 (en) | 1991-05-01 | 1991-05-01 | Drive shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2527588Y2 (en) |
-
1991
- 1991-05-01 JP JP3955991U patent/JP2527588Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04126026U (en) | 1992-11-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |