JP2724009B2 - Retaining ring insertion device - Google Patents
Retaining ring insertion deviceInfo
- Publication number
- JP2724009B2 JP2724009B2 JP31284089A JP31284089A JP2724009B2 JP 2724009 B2 JP2724009 B2 JP 2724009B2 JP 31284089 A JP31284089 A JP 31284089A JP 31284089 A JP31284089 A JP 31284089A JP 2724009 B2 JP2724009 B2 JP 2724009B2
- Authority
- JP
- Japan
- Prior art keywords
- retaining ring
- pusher
- shaft
- washer
- diameter
- 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
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は軸に止め輪類を挿入するための装置に関
し、さらに詳しくは、止め輪類を、横断面がＬ字形でフ
ランジないしはつばの内径と軸の外径との寸法差がその
止め輪の線径より小さいワッシャと同時に、軸の端部か
ら挿入して軸上の所定位置に装着するための装置に関す
る。ここに止め輪類とは、円周上の一カ所で分断された
環状体で、弾性的に拡径された状態で軸の端部から挿入
して軸に形成された環状溝にそれ自体の弾性復元力によ
ってはまり込むようにしたものをいい、止め輪、サーク
リップ、スナップリングその他種々の呼称のものが含ま
れるが、以下では単に止め輪と称する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for inserting a retaining ring into a shaft, and more particularly, to a retaining ring having an L-shaped cross section and an inner diameter of a flange or collar. The present invention relates to a device for inserting from the end of the shaft and mounting it at a predetermined position on the shaft at the same time as a washer whose dimensional difference between the shaft and the outer diameter of the shaft is smaller than the diameter of the retaining ring. Here, the retaining rings are annular bodies divided at one place on the circumference, and inserted into the shaft from an end of the shaft in an elastically expanded state, and inserted into an annular groove formed on the shaft. It refers to one that is fitted by the elastic restoring force, and includes a retaining ring, a circlip, a snap ring, and various other names, but is hereinafter simply referred to as a retaining ring.
第４図は自動車等における回転動力伝達に使用される
トリポード型の等速自在継手を示す。この継手は２つの
回転軸（１、２）を連結して等速度で回転トルクを伝達
する。一方の軸（１）の端部には放射状の３つのトラニ
オン軸（４）を有するトラニオン（３）が結合され、各
トラニオン軸（４）にはニードルベアリング（５）を介
して球面ローラ（６）が取り付けられている。他方の軸
（２）の端部には、前記球面ローラ（６）を軸方向に転
動可能に収容する溝（７）を持ったハウジング（８）が
結合されている。FIG. 4 shows a tripod type constant velocity universal joint used for transmitting rotational power in an automobile or the like. This joint connects two rotating shafts (1, 2) and transmits a rotating torque at a constant speed. A trunnion (3) having three radial trunnion shafts (4) is connected to the end of one shaft (1), and each of the trunnion shafts (4) is connected to a spherical roller (6) via a needle bearing (5). ) Is attached. A housing (8) having a groove (7) for accommodating the spherical roller (6) so as to be able to roll in the axial direction is connected to the end of the other shaft (2).
第５図に示されるように、ニードルベアリング（５）
はトラニオン軸（４）の端部に配置された環状のアウタ
ーワッシャ（９）で軸方向の動きを規制される。なお、
（９′）はインナーワッシャを示す。トラニオン軸
（４）に形成された溝（11）に填められた止め輪（10）
でアウターワッシャ（９）の抜け止めを図ってある。こ
の止め輪（10）を装着するにあたっては、第６図に示さ
れるように、アウターワッシャ（９）と止め輪（10）を
合わせた後止め輪（10）をプッシャ（13）で押すことに
より同時にアウターワッシャ（９）も押され、トラニオ
ン軸（４）と一直線に突き合わされた軸部材（12）を介
して軸方向に溝（11）まで押し進めて挿入される。As shown in FIG. 5, the needle bearing (5)
Is restricted in axial movement by an annular outer washer (9) arranged at the end of the trunnion shaft (4). In addition,
(9 ') indicates an inner washer. Retaining ring (10) fitted in groove (11) formed in trunnion shaft (4)
To prevent the outer washer (9) from coming off. In mounting the retaining ring (10), as shown in FIG. 6, the outer retaining washer (9) and the retaining ring (10) are combined, and then the retaining ring (10) is pushed with a pusher (13). At the same time, the outer washer (9) is also pushed, and is pushed forward and inserted into the groove (11) in the axial direction via the shaft member (12) that is aligned with the trunnion shaft (4).
アウターワッシャのつばの内径とトラニオン軸（４）
の外径との寸法差ΔＤが止め輪（10）の線径ｄより大き
いために止め輪（10）が抜けてアウターワッシャ（９）
が外れ、さらに球面ローラ（６）が外れてしまうおそれ
がある。アウターワッシャ（９）のつばの内径とトラニ
オン軸（４）の外径との寸法差ΔＤを止め輪（10）の線
径ｄより小さくしておけば止め輪（10）が抜ける心配は
ないが、止め輪（10）の挿入が困難となる。すなわち、
従来と同じようにして止め輪（10）でアウターワッシャ
（９）を押しながら挿入しようとすれば、途中でアウタ
ーワッシャ（９）のつばの内径と止め輪（10）の外径が
張り合って軸上に固着してしまう。Inner diameter of outer washer flange and trunnion shaft (4)
Since the dimensional difference ΔD from the outer diameter of the retaining ring (10) is larger than the wire diameter d of the retaining ring (10), the retaining ring (10) comes off and the outer washer (9).
And the spherical roller (6) may come off. If the dimensional difference ΔD between the inner diameter of the collar of the outer washer (9) and the outer diameter of the trunnion shaft (4) is made smaller than the wire diameter d of the retaining ring (10), there is no fear that the retaining ring (10) comes off. This makes it difficult to insert the retaining ring (10). That is,
If it is attempted to insert the outer washer (9) with the retaining ring (10) while pressing it in the same manner as before, the inner diameter of the collar of the outer washer (9) and the outer diameter of the retaining ring (10) will stick together on the shaft. It sticks on top.
そこで、この発明の目的は、ワッシャのつばの内径と
軸の外径との寸法差が止め輪の線径より小さいようなワ
ッシャと止め輪とを軸の所定位置に自動的に装着するこ
とのできる装置を提供することである。この目的を達成
するためには、したがって、挿入過程の途中でワッシャ
のつばの内径に止め輪が押し込められてかしめ状態にな
らないようにすることが課題となる。Therefore, an object of the present invention is to automatically mount a washer and a retaining ring at a predetermined position on a shaft such that the dimensional difference between the inner diameter of the collar of the washer and the outer diameter of the shaft is smaller than the diameter of the retaining ring. It is to provide a device that can. In order to achieve this object, it is therefore an issue to prevent the retaining ring from being pushed into the inner diameter of the collar of the washer during the insertion process so as not to be swaged.
この発明は、挿入過程では常にワッシャを止め輪より
も先行させることによって課題を解決した。すなわち、
挿入途中では止め輪とワッシャをそれぞれ別の部材で押
し、常に止め輪がワッシャのつばの内径に入り込まない
ようにした。そして、挿入の最終段階でワッシャを押し
ている部材がばねで逃げて、止め輪を軸の溝に挿入す
る。その際、ワッシャのつばが弾性的に変形して止め輪
の挿入を可能ならしめる。The present invention has solved the problem by always placing the washer ahead of the retaining ring during the insertion process. That is,
During the insertion, the retaining ring and the washer were pressed by different members, so that the retaining ring did not always enter the inner diameter of the washer flange. Then, at the final stage of insertion, the member pressing the washer escapes by the spring, and the retaining ring is inserted into the groove of the shaft. At that time, the collar of the washer is elastically deformed to enable insertion of the retaining ring.
この発明の挿入装置は、ワッシャを押すための第一の
プッシャと、止め輪を押すための第二のプッシャと、第
一のプッシャの端面を第二のプッシャの端面よりも止め
輪の線径以上に突出させる弾性部材とを有する。第二の
プッシャは軸の外径よりわずかに大きな内径を有し、第
一のプッシャは第二のプッシャの外側に同軸状に位置
し、その端面は止め輪のつばの外径より小さな内径を有
している。第一のプッシャと第二のプッシャは相対的に
軸方向に移動でき、通常は弾性部材の働きによって第一
のプッシャの端面が第二のプッシャの端面よりも突出し
ており、その突出量は少なくとも止め輪の線径に等し
い。The insertion device of the present invention includes a first pusher for pushing a washer, a second pusher for pushing a retaining ring, and a wire diameter of the retaining ring that is larger than the end face of the first pusher than the end face of the second pusher. And an elastic member that protrudes as described above. The second pusher has an inner diameter slightly larger than the outer diameter of the shaft, the first pusher is coaxially located outside the second pusher, and its end face has an inner diameter smaller than the outer diameter of the collar of the retaining ring. Have. The first pusher and the second pusher can relatively move in the axial direction, and the end face of the first pusher projects from the end face of the second pusher by the action of an elastic member, and the amount of projection is at least Equal to the diameter of the retaining ring.
軸の端部からワッシャと拡径させた止め輪とを挿入
し、それぞれ第一のプッシャと第二のプッシャで軸方向
に押し進める。第一のプッシャの方が第二のプッシャよ
りも端面が突出しているため、挿入過程では常にワッシ
ャが止め軸よりも先行する。所定位置に到達してワッシ
ャが止められると、第一のプッシャはそれ以上進めなく
なるが、第二のプッシャは弾性部材による弾圧力に抗し
てさらに前進して止め輪を押し進める。これにより、止
め輪は軸に形成された溝に達し、それ自体の弾性復元力
により縮径して溝に填まり込む。このとき、ワッシャの
つばは弾性的に変形して止め輪が溝に嵌まり込むのを助
ける。The washer and the enlarged retaining ring are inserted from the end of the shaft, and pushed in the axial direction by the first pusher and the second pusher, respectively. Since the first pusher has a more protruding end face than the second pusher, the washer always precedes the stop shaft during the insertion process. When the predetermined position is reached and the washer is stopped, the first pusher can no longer advance, but the second pusher advances further against the elastic force of the elastic member and pushes the retaining ring. As a result, the retaining ring reaches the groove formed in the shaft, and is reduced in diameter by the elastic restoring force of itself and fits into the groove. At this time, the collar of the washer is elastically deformed to help the snap ring to fit into the groove.
以下、図面に従ってこの発明の実施例を説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
この実施例は、トリポード型等速自在継手のトラニオ
ン軸に装着されるアウターワッシャと止め輪に適用した
ものである。This embodiment is applied to an outer washer and a retaining ring mounted on a trunnion shaft of a tripod type constant velocity universal joint.
第１図および第２図（Ｂ）において挿入装置は参照数
字20で包括的に指してあり、第一のプッシャ（21）、第
二のプッシャ（22）および弾性部材としてスプリング
（23）を主要な構成要素としている。第一のプッシャ
（21）と第二のプッシャ（22）は同軸状で、かつ、軸方
向に相対移動可能な関係にあり、スプリング（23）が両
者の間に介在して第一のプッシャ（21）の端面を第二の
プッシャ（22）の端面よりも突出させている。その突出
量は少なくとも止め輪の線径ｄと等しく、図面には止め
輪の線径ｄよりも大きい場合を示してある。第一のプッ
シャ（21）の内径はアウターワッシャ（９）の外径より
も小さく、その端面でアウターワッシャ（９）のつば
（9a）の端面と係合する。第二のプッシャ（22）はトラ
ニオン軸（４）の外径よりわずかに大きい内径の孔を有
し、端面で止め輪（10）と係合する。In FIGS. 1 and 2B, the insertion device is indicated generally by the reference numeral 20 and comprises a first pusher (21), a second pusher (22) and a spring (23) as an elastic member. Components. The first pusher (21) and the second pusher (22) are coaxial and relatively movable in the axial direction. A spring (23) is interposed between the first pusher (21) and the second pusher (22). The end face of 21) protrudes from the end face of the second pusher (22). The protrusion amount is at least equal to the wire diameter d of the retaining ring, and the drawing shows a case where it is larger than the wire diameter d of the retaining ring. The inner diameter of the first pusher (21) is smaller than the outer diameter of the outer washer (9), and the end face engages with the end face of the collar (9a) of the outer washer (9). The second pusher (22) has a bore with an inner diameter slightly larger than the outer diameter of the trunnion shaft (4) and engages with the retaining ring (10) at the end face.
挿入装置（20）は、第６図に示されるような従来の装
置におけるプッシャ（13）に代えてこれを取り突け、使
用することができるものである。そこで、第１〜３図お
よび第６図に従って、トラニオン軸（４）にアウターワ
ッシャ（９）と止め輪（10）を装着する方法を説明する
と次のとおりである。The insertion device (20) can be used instead of the pusher (13) in the conventional device as shown in FIG. The method of mounting the outer washer (9) and the retaining ring (10) on the trunnion shaft (4) will be described below with reference to FIGS. 1 to 3 and FIG.
まず、図示しない油圧シリンダ等の適当な駆動手段に
より軸部材（12）を搭載した装置（20）全体を図中左方
へ移動させて、軸部材（12）を待機しているトラニオン
（３）のトラニオン軸（４）と同軸状に付き合わせる。
なお、軸部材（12）の端面には、トラニオン軸（４）と
の芯合わせのため、バネで逃げるようにしたセンターピ
ン（12a）がある。そして、ロッド（14）を図中左方に
移動させると、このロッド（14）の先端には軸方向に分
割して弾性リング（16）で束ねた割軸（15）が連結され
ており、この割軸（15）が、移動経路の途中に仮保持さ
れたアウターワッシャ（９）と止め輪（10）を貫通す
る。割軸（15）は、その後その先端にて軸部材（12）に
当接し、弾性リング（16）の力に抗して拡径して軸部材
（12）とほぼ同径のストレートな外径を得る。First, the trunnion (3) which waits for the shaft member (12) by moving the entire device (20) equipped with the shaft member (12) to the left side in the figure by a suitable driving means such as a hydraulic cylinder (not shown). And coaxially with the trunnion shaft (4).
In addition, a center pin (12a) is provided on the end face of the shaft member (12) so as to escape by a spring for centering with the trunnion shaft (4). When the rod (14) is moved to the left in the figure, a split shaft (15), which is divided in the axial direction and bundled by an elastic ring (16), is connected to the tip of the rod (14). The split shaft (15) penetrates the outer washer (9) and the retaining ring (10) temporarily held in the middle of the movement path. The split shaft (15) then comes into contact with the shaft member (12) at its tip, and expands in diameter against the force of the elastic ring (16) to have a straight outer diameter substantially the same as the shaft member (12). Get.
上述のようにして割軸（15）、軸部材（12）およびト
ラニオン軸（14）が一直線につながった状態で、挿入装
置（20）が図中左方に移動することにより、第一のプッ
シャ（21）および第二のプッシャ（22）がそれぞれアウ
ターワッシャ（９）および止め輪（10）を軸方向に押し
進める。なお、第６図に示されているのはアウターワッ
シャ（９）と止め輪（10）が一対の保持部材（17）によ
って仮保持された状態であるが、これらの保持部材（1
7）は旋回可能に支持されていて、挿入装置（20）の通
過に伴い二点鎖線で示されるように外側に旋回し、アウ
ターワッシャ（９）と止め輪（10）の仮保持を解放する
ようになっている。同様に、軸部材（12）を保持する保
持部材（18）も、挿入装置（20）の通過の際には二点鎖
線で示されるように外側に旋回して道をあけるようにな
っている。With the split shaft (15), the shaft member (12) and the trunnion shaft (14) connected in a straight line as described above, the insertion device (20) is moved to the left in the drawing, whereby the first pusher is moved. (21) and the second pusher (22) push the outer washer (9) and the retaining ring (10) in the axial direction, respectively. FIG. 6 shows a state in which the outer washer (9) and the retaining ring (10) are temporarily held by a pair of holding members (17).
7) is supported so as to be pivotable, and pivots outward as indicated by a two-dot chain line as the insertion device (20) passes, thereby releasing the temporary holding of the outer washer (9) and the retaining ring (10). It has become. Similarly, the holding member (18) holding the shaft member (12) also turns outward as shown by a two-dot chain line to make a way when passing through the insertion device (20). .
第２図（Ｂ）はトラニオン軸（４）とほぼ同径の軸部
材（12）上をアウターワッシャ（９）と拡径させた止め
輪（10）とをそれぞれ第一のプッシャ（21）及び第二の
プッシャ（22）でトラニオン軸（４）の方へ押し進める
過程を示しているがその際、第一のプッシャ（21）の端
面が第二のプッシャ（22）の端面よりも突出しているた
め、常にアウターワッシャ（９）が止め輪（10）より先
行する。アウターワッシャ（９）はやがてニードルベア
リング（５）の端面に当たって止められ、その結果、第
一のプッシャ（21）はそれ以上の前進を阻止される。し
かし、第二のプッシャ（22）はスプリング（23）の弾圧
力に抗してさらに前進する。これにより止め輪（10）
は、第３図に二点鎖線で示すようにアウターワッシャ
（９）のつば（9a）を弾性的に押し広げながら溝（11）
の中へ達する。そして、止め輪（10）がそれ自体の弾性
復元力で縮径して溝（11）に填まり込むと、アウターワ
ッシャ（９）のつば（9a）も初期状態に復元して、装着
が完了する。このようにして一旦装着されると、アウタ
ーワッシャ（９）のつば（9a）の内径とトラニオン軸
（４）の外径との寸法差ΔＤ′が止め輪（10）の線径ｄ
より小さいので、止め輪（10）が抜け出す心配は皆無と
なる。FIG. 2 (B) shows an outer washer (9) and an enlarged retaining ring (10) on a shaft member (12) having substantially the same diameter as the trunnion shaft (4). The process of pushing with the second pusher (22) toward the trunnion shaft (4) is shown, with the end face of the first pusher (21) projecting beyond the end face of the second pusher (22). Therefore, the outer washer (9) always precedes the retaining ring (10). The outer washer (9) eventually stops against the end face of the needle bearing (5), so that the first pusher (21) is prevented from further advance. However, the second pusher (22) advances further against the elastic pressure of the spring (23). This makes the retaining ring (10)
As shown by the two-dot chain line in FIG. 3, the groove (11) is elastically expanded while the collar (9a) of the outer washer (9) is expanded.
Reach inside. When the retaining ring (10) is reduced in diameter by its own elastic restoring force and fits into the groove (11), the collar (9a) of the outer washer (9) is restored to the initial state, and the mounting is completed. I do. Once mounted in this manner, the dimensional difference ΔD 'between the inner diameter of the collar (9a) of the outer washer (9) and the outer diameter of the trunnion shaft (4) is equal to the wire diameter d of the retaining ring (10).
Since it is smaller, there is no need to worry about the retaining ring (10) coming out.
この発明は、ワッシャを常に止め輪より先行させるよ
うにしたので、ワッシャのつばの内径と軸の外径との寸
法差が止め輪の線径より小さいにもかかわらず、挿入過
程の途中で止め輪がワッシャのつばの内径に入り込んで
軸上でかしめ込まれた状態となることが全くない。した
がって、このようなワッシャと止め輪を軸上の所定位置
に装着する作業の自動化が可能となる。In the present invention, since the washer always precedes the retaining ring, the stopper is stopped in the middle of the insertion process even though the dimensional difference between the inner diameter of the collar of the washer and the outer diameter of the shaft is smaller than the diameter of the retaining ring. The ring never enters the inside diameter of the collar of the washer and is never swaged on the shaft. Therefore, it is possible to automate the work of mounting such washers and retaining rings at predetermined positions on the shaft.
また、装着作業の自動化が可能となったことにより、
等速自在継手のような量産品にワッシャのつばの内径と
軸の外径との寸法差が止め輪の線径より小さくした信頼
性の高い抜け止め構造を採用することができる。In addition, because the mounting work can be automated,
For mass-produced products such as constant velocity universal joints, a highly reliable retaining structure in which the dimensional difference between the inner diameter of the washer flange and the outer diameter of the shaft is smaller than the wire diameter of the retaining ring can be adopted.
第１図はこの発明の実施例を示す断面図、 第２図は挿入過程を示す断面図で、（Ａ）は従来例を示
し、（Ｂ）はこの発明による場合を示す、 第３図は要部拡大断面図、 第４図は等速自在継手の一部破断した斜視図、 第５図はトラニオンの一部を断面にした正面図、 第６図は従来例を示す断面図である。 4:トラニオン軸 9:アウターワッシャ 9a:つば 10:止め輪 11:溝 12:軸部材 21:第１のプッシャ 22:第２のプッシャ 23:スプリングFIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view showing an inserting process, (A) shows a conventional example, (B) shows a case according to the present invention, and FIG. FIG. 4 is a partially cutaway perspective view of a constant velocity universal joint, FIG. 5 is a front view in which a part of a trunnion is sectioned, and FIG. 6 is a sectional view showing a conventional example. 4: Trunnion shaft 9: Outer washer 9a: Collar 10: Retaining ring 11: Groove 12: Shaft member 21: First pusher 22: Second pusher 23: Spring
Claims (1)
の寸法差が止め輪の線径より小さいワッシャとともに止
め輪を軸上の所定位置に装着するための装置であって、
ワッシャを押すための第一のプッシャと、止め輪を押す
ための第二のプッシャと、第一のプッシャの端面を第二
のプッシャの端面よりも止め輪の線径以上突出させるた
めの弾性部材とを有する止め輪類の挿入装置。An apparatus for mounting a retaining ring at a predetermined position on a shaft together with a washer having an L-shaped cross section and a dimensional difference between an inner diameter of a collar and an outer diameter of the shaft being smaller than a wire diameter of the retaining ring. ,
A first pusher for pushing the washer, a second pusher for pushing the retaining ring, and an elastic member for projecting the end face of the first pusher beyond the end face of the second pusher by the wire diameter of the retaining ring or more. And a retaining ring insertion device having:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31284089A JP2724009B2 (en) | 1989-11-30 | 1989-11-30 | Retaining ring insertion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31284089A JP2724009B2 (en) | 1989-11-30 | 1989-11-30 | Retaining ring insertion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03170273A JPH03170273A (en) | 1991-07-23 |
| JP2724009B2 true JP2724009B2 (en) | 1998-03-09 |
Family
ID=18034060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31284089A Expired - Fee Related JP2724009B2 (en) | 1989-11-30 | 1989-11-30 | Retaining ring insertion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2724009B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151244A (en) * | 2015-04-27 | 2016-11-23 | 长城汽车股份有限公司 | Circlip and circlip erecting device |
-
1989
- 1989-11-30 JP JP31284089A patent/JP2724009B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03170273A (en) | 1991-07-23 |
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