JPH0410423Y2 - - Google Patents
Info
- Publication number
- JPH0410423Y2 JPH0410423Y2 JP1984040494U JP4049484U JPH0410423Y2 JP H0410423 Y2 JPH0410423 Y2 JP H0410423Y2 JP 1984040494 U JP1984040494 U JP 1984040494U JP 4049484 U JP4049484 U JP 4049484U JP H0410423 Y2 JPH0410423 Y2 JP H0410423Y2
- Authority
- JP
- Japan
- Prior art keywords
- outer ring
- ring
- slit
- shaft
- rotating body
- 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
Links
- 238000000465 moulding Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 102100025490 Slit homolog 1 protein Human genes 0.000 description 1
- 101710123186 Slit homolog 1 protein Proteins 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Landscapes
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Clamps And Clips (AREA)
Description
【考案の詳細な説明】
本考案は軸と回転体との締結装置に関し、特に
締結された回転体の動的バランスを良好にした締
結装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fastening device for connecting a shaft and a rotating body, and more particularly to a fastening device that improves the dynamic balance of the fastened rotating body.
本出願人の出願にかかる実願昭58−81235号
（実公平３−15858号公報）の考案においては、回
転体中心孔に内嵌する外輪の内面と軸に外嵌した
内輪の外面とをテーパー面で接せしめ、内輪のね
じ部に螺入したナツトの締め付けにより内輪を外
輪に対し軸方向に摺動させて外輪を拡径させるに
際し、拡径を容易にするべく外輪を円周方向に分
割した割形外輪としている。しかしながら、前記
割形外輪はナツトの締め付けに従い円周方向に不
均等に分散拡径することがあり、そのため動的バ
ランスが崩れて高速回転時に振動を生ずるなどの
欠点があつた。 In the invention of Utility Model Application No. 58-81235 (publication of Utility Model Publication No. 3-15858) filed by the present applicant, the inner surface of the outer ring fitted into the center hole of the rotating body and the outer surface of the inner ring fitted onto the shaft are When expanding the diameter of the outer ring by sliding the inner ring in the axial direction relative to the outer ring by tightening the nut screwed into the threaded part of the inner ring, the outer ring is moved in the circumferential direction to facilitate diameter expansion. It has a split outer ring. However, the diameter of the split outer ring may expand unevenly in the circumferential direction as the nut is tightened, resulting in loss of dynamic balance and vibrations during high-speed rotation.
本案の目的は、従来の上記欠点を除去した軸と
回転体の締結装置を提案するにある。 The purpose of the present invention is to propose a shaft-rotating body fastening device that eliminates the above-mentioned conventional drawbacks.
本案は上記目的達成のため、軸方向のスリツト
を具えて軸に外嵌合し外周のテーパー面とその直
径小なる側に続くねじ部とを有する内輪と、回転
体中心孔に内嵌し内輪のテーパー面と接するテー
パー内面とその直径小なる側の内面に形成した環
状溝とを有し軸方向のスリツトにより円周方向に
分割された割形外輪と、内輪のねじ部に螺合し外
輪の環状溝に係入する環状突起を一側に具えた締
結用ナツトと、割形外輪をほぼ均一なスリツト巾
を存して一体的に保持する弾性部材とを具えて、
締付けナツトにより内輪を外輪に対し摺動させた
とき外輪をほぼ均等なスリツト巾を保つて拡径す
ることを可能ならしめ、もつて高速回転時の振動
発生を防止したものである。 In order to achieve the above-mentioned purpose, the present invention includes an inner ring that is provided with an axial slit and externally fits onto the shaft, and has a tapered surface on the outer periphery and a threaded portion that continues on the side with a smaller diameter; The split outer ring is divided into circumferential directions by axial slits and has a tapered inner surface in contact with the tapered surface of the inner ring and an annular groove formed on the smaller diameter inner surface of the tapered surface. a fastening nut having an annular protrusion on one side that engages in an annular groove; and an elastic member that integrally holds the split outer ring with a substantially uniform slit width,
When the inner ring is slid against the outer ring using a tightening nut, the diameter of the outer ring can be expanded while maintaining a substantially uniform slit width, thereby preventing vibrations during high-speed rotation.
以下本案の図示実施例について説明する。第１
図ないし第４図において、軸１に締結される回転
体２はボス部３に大径の中心孔４を有し、該孔４
内に、軸１に外嵌する内輪と中心孔４に内嵌する
外輪６とを互にテーパー面７，８を接せしめて挿
嵌する。 An illustrated embodiment of the present invention will be described below. 1st
In the figures or FIG. 4, a rotating body 2 fastened to a shaft 1 has a large diameter center hole 4 in a boss portion 3.
Inside, an inner ring that fits onto the shaft 1 and an outer ring 6 that fits into the center hole 4 are inserted with their tapered surfaces 7 and 8 in contact with each other.
内輪５はテーパー面７の直径小なる側にボス部
３から突出するねじ部９を有し、軸１との密着を
良好にするため、内輪５にねじ部９の一部を残し
て円周上等間隔にスリツト１０を設ける。また外
輪６には内径小なる端に近くテーパー面８から凹
入する環状溝１１とその外側の一部を覆う環状突
起１２とを設ける。外輪６を４個のスリツト１３
により等分割し、外側に設けた外周溝１４に、切
れ目１５及び等間隔の三角状突起１６を有する輪
ばね１７を、突起１６がスリツト１３に係入する
ように入れて外輪６を中心方向に加圧するととも
に、スリツト１３が突起１６の斜面に沿つて拡縮
するように構成する。その結果、輪ばね１７は弾
性部材として分割外輪６を内輪５に対して一体的
に集結し、また外輪の中心孔４への挿脱を容易に
すほか、締結時に外輪６が突起１３の根元におい
て等間隔に保持されて動的バランスが良好に保持
される。 The inner ring 5 has a threaded part 9 protruding from the boss part 3 on the smaller diameter side of the tapered surface 7, and in order to make good contact with the shaft 1, a part of the threaded part 9 is left on the inner ring 5 and the circumference is Slits 10 are provided at equal intervals on the top. Further, the outer ring 6 is provided with an annular groove 11 recessed from the tapered surface 8 near the end with the smaller inner diameter, and an annular protrusion 12 covering a part of the outer side of the annular groove 11. Outer ring 6 with four slits 13
A ring spring 17 having cuts 15 and equally spaced triangular protrusions 16 is inserted into the outer peripheral groove 14 provided on the outside so that the protrusions 16 fit into the slits 13, and the outer ring 6 is moved toward the center. The slit 13 is configured to expand and contract along the slope of the protrusion 16 as pressure is applied. As a result, the ring spring 17 serves as an elastic member that integrally gathers the divided outer ring 6 with respect to the inner ring 5, and also facilitates the insertion and removal of the outer ring into the center hole 4. They are maintained at equal intervals to maintain good dynamic balance.
ねじ部９に螺合するナツト１８は、一側に半径
方向外方に突出した環状突起１９とその内側に形
成した環状溝２０とを有し、該突起１９と溝２０
とが夫々外輪６の溝１１及び突起１２と係合して
外輪６と軸方向に一体的に結合することができ
る。 The nut 18 that is screwed into the threaded portion 9 has an annular projection 19 projecting radially outward on one side and an annular groove 20 formed inside the annular projection 19.
and can be integrally coupled to the outer ring 6 in the axial direction by engaging with the groove 11 and the protrusion 12 of the outer ring 6, respectively.
上記実施例において軸１に回転体２を締結する
には、輪ばね１７の弾力に抗して外輪６を外方に
拡げ、上記の如く突起１９を溝１１内に嵌入させ
たのち軸１に外嵌した内輪５上に外輪６を嵌合
し、ナツト１８をねじ部９に螺合させる。螺合初
期においてはテーパー面７，８の重なりが少なく
外輪６の外径は小であり、これを回転体中心孔４
に挿入する。第１図のように、ナツト１８が中心
孔４より大ならば、ボス３をナツト１８に当接さ
せてナツト１８を締め付ける。しかるとき、外輪
６はテーパー面７，８の滑動によつて拡径され、
外輪６の相互間隔は突起１６の根元によつて均等
に保たれる。 In the above embodiment, in order to fasten the rotating body 2 to the shaft 1, the outer ring 6 is expanded outward against the elasticity of the ring spring 17, and the protrusion 19 is fitted into the groove 11 as described above. The outer ring 6 is fitted onto the fitted inner ring 5, and the nut 18 is screwed into the threaded portion 9. At the initial stage of screwing, there is little overlap between the tapered surfaces 7 and 8, and the outer diameter of the outer ring 6 is small.
Insert into. As shown in FIG. 1, if the nut 18 is larger than the center hole 4, the boss 3 is brought into contact with the nut 18 and the nut 18 is tightened. At this time, the diameter of the outer ring 6 is expanded by sliding of the tapered surfaces 7 and 8,
The mutual spacing between the outer rings 6 is maintained evenly by the bases of the protrusions 16.
締結を解くにはナツト１８を逆回転すればよ
く、この場合環状突起１９はナツト１８の後退を
許さないため、内輪５が軸方向に移動して内外輪
５，６の圧接を解き、ボス６を軸１から解放させ
ることができる。 To release the fastening, the nut 18 only needs to be rotated in the opposite direction. In this case, the annular protrusion 19 does not allow the nut 18 to move back, so the inner ring 5 moves in the axial direction to release the pressure between the inner and outer rings 5 and 6, and the boss 6 can be released from shaft 1.
第５図ないし第８図は輪ばね１７の代わりに、
切れ目２４を有する円形ばね２５に、スリツト１
３に嵌入する間隔保持片２６を摺動可能に取付け
た輪ばね２７を外輪６の外周溝１４内に入れた実
施例を示し、外輪６の拡径に際し、間隔保持片２
６がスリツト１３の巾をほぼ一定に保持する。 5 to 8, instead of the ring spring 17,
A circular spring 25 having a cut 24 has a slit 1
3 is shown in which a ring spring 27 to which a spacing retaining piece 26 is slidably attached is inserted into the outer peripheral groove 14 of the outer ring 6. When the diameter of the outer ring 6 is expanded, the spacing retaining piece 2
6 keeps the width of the slit 13 almost constant.
第９図、第１０図は分割外輪６のスリツト１３
の部分に弾性ゴム（又は弾性プラスチツク）２８
をモールドして外輪６を一体に結合した実施例を
示し、モールド時に外輪６に塗布した接着剤によ
り弾性ゴム２８を外輪６に固着させる。本実施例
では、外輪６を精度よく均等配置することがで
き、組立も容易であり、弾性ゴム２８が容易に変
形しうるので締付けロスがなく締結が容易とな
る。 Figures 9 and 10 show the slit 13 of the split outer ring 6.
Elastic rubber (or elastic plastic) 28
An embodiment is shown in which the outer ring 6 is integrally joined by molding, and the elastic rubber 28 is fixed to the outer ring 6 using an adhesive applied to the outer ring 6 during molding. In this embodiment, the outer rings 6 can be arranged evenly with high precision, assembly is easy, and since the elastic rubber 28 can be easily deformed, there is no tightening loss and it is easy to fasten.
本案は、上記のようにスリツトを有する割形外
輪を用いて締結ロスを最小にすると同時に、締結
時において前記スリツトをほぼ均等ならしめて、
回転バランスを良好になしうる効果があり、更に
強制的緩め機構を有するので、内外輪の接触テー
パー角を小にして締結力を大ならしめ得ると共
に、締結時のセンタリング精度を向上することが
でき、また締結用ナツトは外輪と環状係合をなす
ので振動等によりゆるむことがなく、しかもナツ
トの回転力を内、外輪のスリツトによつて充分に
締結力に活かすことができる等、実用上の効果大
なるものがある。 The present invention minimizes fastening loss by using a split outer ring having slits as described above, and at the same time, makes the slits almost uniform during fastening.
It has the effect of achieving good rotational balance, and since it has a forced loosening mechanism, it is possible to reduce the contact taper angle between the inner and outer rings, increase the fastening force, and improve centering accuracy during fastening. In addition, since the fastening nut forms an annular engagement with the outer ring, it will not loosen due to vibrations, etc., and the rotational force of the nut can be fully utilized as fastening force through the slits in the inner and outer rings. There are some things that are very effective.
第１図ないし第４図は本案の一実施例を示し、
第１図は縦断面図、第２図は側面図、第３図は分
解縦断面図、第４図は輪ばねの立面図、第５図な
いし第８図は他の実施例を示し、第５図は縦断面
図、第６図は側面図、第７図は輪ばねの斜視図、
第８図は輪ばねの断面図、第９図、第１０図は更
に別の実施例を示し、第９図は側面図、第１０図
は組立状態における外輪の斜視図である。
４……回転体中心孔、５……内輪、６……外
輪、７……テーパー内面、８……テーパー内面、
９……ねじ部、１０……スリツト、１１……環状
溝、１３……スリツト、１４……外周溝、１５…
…切れ目、１６……突起、１７……輪ばね、１８
……締結用ナツト、１９……環状突起、２４……
切れ目、２５……円形ばね、２６……間隔保持
片、２８……弾性ゴム。
Figures 1 to 4 show an embodiment of the present invention,
FIG. 1 is a longitudinal sectional view, FIG. 2 is a side view, FIG. 3 is an exploded longitudinal sectional view, FIG. 4 is an elevational view of the ring spring, and FIGS. 5 to 8 show other embodiments. Fig. 5 is a longitudinal sectional view, Fig. 6 is a side view, Fig. 7 is a perspective view of the ring spring,
FIG. 8 is a sectional view of the ring spring, FIGS. 9 and 10 show further embodiments, FIG. 9 is a side view, and FIG. 10 is a perspective view of the outer ring in an assembled state. 4...Rotating body center hole, 5...Inner ring, 6...Outer ring, 7...Tapered inner surface, 8...Tapered inner surface,
9... Threaded portion, 10... Slit, 11... Annular groove, 13... Slit, 14... Outer circumferential groove, 15...
...Slit, 16...Protrusion, 17...Ring spring, 18
... Fastening nut, 19 ... Annular projection, 24 ...
Cut, 25... Circular spring, 26... Spacing piece, 28... Elastic rubber.
Claims (1)
テーパー面とその直径小なる側に続くねじ部と
を有する内輪と、回転体中心孔に内嵌し内輪の
テーパー面と接するテーパー内面とその直径小
なる側の内面に形成した環状溝とを有し軸方向
のスリツトにより円周方向に分割された割形外
輪と、内輪のねじ部に螺合し前記環状溝に係入
する環状突起を一側に具えた締結用ナツトと、
割形外輪をほぼ均一なスリツト巾を存して一体
的に保持する弾性部材とを有する軸と回転体の
締結装置。 (2) 弾性部材が、割形外輪の外周溝に入る切れ目
付き輪ばねに割形外輪のスリツトに係入する突
起を設けてなる実用新案登録請求の範囲第１項
記載の軸と回転体の締結装置。 (3) 弾性部材が、割形外輪の外周溝に入る切れ目
付き円形ばねに割形外輪のスリツトに嵌入する
間隔保持片を取り付けてなる実用新案登録請求
の範囲第１項記載の軸と回転体の締結装置。 (4) 弾性部材が、割形外輪のスリツトに弾性ゴム
をモールドして割形外輪を一体結合するもので
ある実用新案登録請求の範囲第１項記載の軸と
回転体の締結装置。[Claims for Utility Model Registration] (1) An inner ring that is provided with an axial slit and is fitted onto the shaft, and has a tapered surface on the outer periphery and a threaded portion that continues on the side with a smaller diameter; and an inner ring that is fitted into the center hole of the rotating body. A split outer ring, which has a tapered inner surface in contact with the inner ring's tapered surface and an annular groove formed on the inner surface of the smaller diameter side, is divided in the circumferential direction by an axial slit, and is screwed into the threaded part of the inner ring. a fastening nut having an annular protrusion on one side that engages the annular groove;
A fastening device for a shaft and a rotating body, comprising an elastic member that integrally holds a split outer ring with a substantially uniform slit width. (2) The shaft and rotating body according to claim 1, wherein the elastic member is a notched ring spring that fits into the outer circumferential groove of the split outer ring and is provided with a protrusion that fits into the slit of the split outer ring. Fastening device. (3) The shaft and rotating body according to claim 1, in which the elastic member is a notched circular spring that fits into the outer circumferential groove of the split outer ring, and a spacing retaining piece that fits into the slit of the split outer ring. fastening device. (4) The shaft and rotating body fastening device according to claim 1, wherein the elastic member integrally connects the split outer ring by molding elastic rubber into the slit of the split outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4049484U JPS60152835U (en) | 1984-03-23 | 1984-03-23 | Fastening device for shaft and rotating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4049484U JPS60152835U (en) | 1984-03-23 | 1984-03-23 | Fastening device for shaft and rotating body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60152835U JPS60152835U (en) | 1985-10-11 |
| JPH0410423Y2 true JPH0410423Y2 (en) | 1992-03-16 |
Family
ID=30549429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4049484U Granted JPS60152835U (en) | 1984-03-23 | 1984-03-23 | Fastening device for shaft and rotating body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60152835U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0740742Y2 (en) * | 1989-01-24 | 1995-09-20 | マツダ株式会社 | Fitting member mounting structure to drive shaft |
-
1984
- 1984-03-23 JP JP4049484U patent/JPS60152835U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60152835U (en) | 1985-10-11 |
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