JP2001065587A - Spline coupling - Google Patents
Spline couplingInfo
- Publication number
- JP2001065587A JP2001065587A JP24285299A JP24285299A JP2001065587A JP 2001065587 A JP2001065587 A JP 2001065587A JP 24285299 A JP24285299 A JP 24285299A JP 24285299 A JP24285299 A JP 24285299A JP 2001065587 A JP2001065587 A JP 2001065587A
- Authority
- JP
- Japan
- Prior art keywords
- spline
- female
- male
- gap
- female spline
- 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
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はスプライン継手に関
し、特に圧延機における圧延ロールの駆動用等に用いら
れる大径の軸を結合するのに適した大型のスプライン継
手に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spline joint, and more particularly to a large spline joint suitable for connecting a large-diameter shaft used for driving a rolling roll in a rolling mill.
【０００２】[0002]
【従来の技術】軸方向への相対的な変位を許容しつつ軸
回りの動力を伝達する場合、スプライン継手が多用され
ている。スプライン継手においては、外周面に軸方向に
伸びるスプライン歯形が形成された雄スプラインを、内
周面にその歯形が嵌まり込むスプライン歯溝が形成され
た雌スプライン内に嵌め込んだ構造を採るが、例えば圧
延機の圧延ロールの駆動機構に用いられるような大型の
スプライン継手では、図３にモデルを示すように、個々
の自重により雌スプラインの両端部に大きな力が作用す
る。2. Description of the Related Art Spline joints are often used to transmit power around an axis while allowing relative displacement in the axial direction. The spline joint employs a structure in which a male spline having a spline tooth profile extending in the axial direction on an outer peripheral surface is fitted into a female spline having a spline tooth groove into which the tooth profile is fitted on an inner peripheral surface. For example, in a large spline joint used for a drive mechanism of a rolling roll of a rolling mill, as shown in a model in FIG. 3, a large force acts on both ends of a female spline due to its own weight.
【０００３】すなわち、図３のモデルにおいて、雌スプ
ライン３１１が先端部に形成された第１の軸３１は、そ
の基端部がユニバーサルジョイント等の支持部３１２に
おいて片持ち支持され、また、雄スプライン３２１が先
端部に形成された第２の軸３２は、その基端部が同じく
ユニバーサルジョイント等の支持部３２２において片持
ち支持されている。このモデルにおいては、第１の軸３
１および第２の軸３２には個々の重心においてそれぞれ
の自重Ｇ１およびＧ２が作用する。この自重Ｇ１，Ｇ２
により、雌スプライン３１１の両端部には、各部の軸方
向への寸法を図示のようにとると、下記のＦ１，Ｆ２で
示す力が作用する。That is, in the model shown in FIG. 3, a first shaft 31 having a female spline 311 formed at the distal end is cantilevered at a base 312 at a support 312 such as a universal joint. The base end of the second shaft 32 having the front end 321 is also cantilevered by a support 322 such as a universal joint. In this model, the first axis 3
The respective weights G1 and G2 act on the first and second shafts 32 at the respective centers of gravity. This own weight G1, G2
As a result, when the dimensions of each part in the axial direction are as shown in the drawing, forces indicated by F1 and F2 below are applied to both ends of the female spline 311.
【０００４】[0004]
【数１】 (Equation 1)
【０００５】自重の大きなスプラインとなると、この雌
スプライン３１１の両端部に作用する力Ｆ１，Ｆ２が大
きくなり、同種金属である雌スプライン３１１と雄スプ
ライン３２１との共擦り作用によって雌スプライン３１
１の両端部もしくはそこに接触する雄スプライン３２１
の表面にかじりや焼き付きが生じ、雄スプライン３１１
と雌スプライン３２１とが軸方向に相互に摺動すること
ができなくなる場合がある。When the spline has a large weight, the forces F1 and F2 acting on both ends of the female spline 311 increase, and the female spline 31 and the male spline 321 made of the same kind of metal co-rub against each other.
Male splines 321 in contact with both ends or at one end
Of the male spline 311
And the female spline 321 may not be able to slide mutually in the axial direction.
【０００６】このようなかじりや焼き付きを防止するた
めに有効な手段として、従来、雌スプライン３１１の両
端部に例えば銅合金等の軟金属製のブッシュを取付け、
そのブッシュの内径面と雄スプライン３２１の大径外面
とを接触させる手段が採用される場合がある。このよう
な構成の採用により、各軸の自重に起因して発生する力
Ｆ１，Ｆ２をブッシュを介して雌スプライン３１１に作
用させ、共擦り効果によるかじりや焼き付き防止するこ
とが可能となる。[0006] As an effective means for preventing such galling and seizure, conventionally, a soft metal bush such as a copper alloy is attached to both ends of the female spline 311.
Means for bringing the inner diameter surface of the bush into contact with the large-diameter outer surface of the male spline 321 may be employed. By employing such a configuration, the forces F1 and F2 generated due to the own weight of each shaft can be applied to the female spline 311 via the bush, thereby preventing galling and seizure due to the co-rubbing effect.
【０００７】[0007]
【発明が解決しようとする課題】ところで、以上のよう
な従来の軟金属製のブッシュを設けても、雌スプライン
と雄スプラインとの隙間との関係において、かじりや焼
き付きを有効に防止することができない場合がある。By the way, even when the conventional soft metal bush as described above is provided, it is possible to effectively prevent galling and seizure in relation to the gap between the female spline and the male spline. It may not be possible.
【０００８】本発明の目的は、雌スプラインが形成され
た軸および雄スプラインが形成された軸の自重が大きく
ても、かじりや焼き付きを確実に防止することのできる
スプライン継手を提供することにある。An object of the present invention is to provide a spline joint which can reliably prevent galling and seizure even if the shaft on which a female spline is formed and the shaft on which a male spline is formed have a large own weight. .
【０００９】[0009]
【課題を解決するための手段】上記の目的を達成するた
め、本発明のスプライン継手は、雌スプラインの両端部
のそれぞれに、雄スプラインの大径外面が嵌まり込む軟
金属製のブッシュが取り付けられたスプライン継手にお
いて、上記ブッシュの内径面と雄スプラインの大径外面
との隙間（片側）をＳ、雌スプラインの大径内面と雄ス
プラインの大径外面との隙間（片側）をＳ１、雌スプラ
インの小径内面と雄スプラインの小径外面との隙間（片
側）をＳ２、および、雌スプラインの歯溝側面と雄スプ
ラインの歯側面との隙間（片側）をＳ３としたとき、 Ｓ＜Ｓ１、かつ、Ｓ＜Ｓ２、かつ、Ｓ＜Ｓ３ としたことによって特徴づけられる。In order to achieve the above object, a spline joint according to the present invention is provided with a bush made of a soft metal into which a large-diameter outer surface of a male spline is fitted at each of both ends of a female spline. In the spline joint, the gap (one side) between the inner surface of the bush and the large-diameter outer surface of the male spline is S, the gap (one side) between the large-diameter inner surface of the female spline and the large-diameter outer surface of the male spline is S1, When the gap (one side) between the small-diameter inner surface of the spline and the small-diameter outer surface of the male spline is S2 and the gap (one side) between the tooth groove side surface of the female spline and the male spline is S3, S <S1, and , S <S2, and S <S3.
【００１０】本発明は、雌スプラインの両端部に軟金属
製のブッシュを取り付けて自重によるかじりや焼き付き
を防止する構成を採用する場合、そのブッシュによる効
果を有効にするための構造を鋭意研究した結果としてな
されたものである。In the present invention, when adopting a configuration in which soft metal bushes are attached to both ends of a female spline to prevent galling and seizure by its own weight, a structure for making the effect of the bush effective is studied. It is the result.
【００１１】すなわち、雌スプラインの両端部に各軸の
自重によるかじりや焼き付きが生じることを防止すべ
く、その両端部にブッシュを配置する場合、そのブッシ
ュによるかじり並びに焼き付き防止効果を有効で確実な
ものとするためには、ブッシュと雄スプライン間の隙間
と、雌スプラインと雄スプライン間の各部の隙間との関
係が所要の関係となるように管理することが最も重要で
あることが判った。その各隙間どうしの所要の関係と
は、雄スプラインの大径外面（歯先外周面）とブッシュ
の内径面との隙間（片側）Ｓを、雌スプラインの大径内
面（歯溝底面）と雄スプラインの大径外面との隙間（片
側）Ｓ１、雌スプラインの小径内面（内歯先端内周面）
と雄スプラインの小径外面（歯元外周面）との隙間Ｓ
２、および、雌スプラインの歯溝側面と雄スプラインの
歯側面との隙間（片側）Ｓ３のいずれよりも小さくす
る、という関係である。That is, in order to prevent galling and seizure from occurring at both ends of the female spline due to the own weight of each shaft, bushes are arranged at both ends of the female spline. In order to achieve this, it was found that it was most important to manage the relationship between the gap between the bush and the male spline and the gap between each part between the female spline and the male spline so that the required relationship was obtained. The required relationship between the gaps is that the gap (one side) S between the large-diameter outer surface (tooth outer peripheral surface) of the male spline and the inner diameter surface of the bush is defined as the large-diameter inner surface (tooth groove bottom surface) of the female spline and the male spline. Gap (one side) between spline and large diameter outer surface (one side), small diameter inner surface of female spline (inner tooth tip inner peripheral surface)
S between the outer surface of the male spline and the small diameter outer surface (tooth root outer surface)
2, and a gap (one side) S3 between the tooth groove side surface of the female spline and the tooth side surface of the male spline.
【００１２】各隙間相互の関係を以上の関係とすること
によって、雌スプラインと雄スプラインとがその端部ど
うしで接触することを防止することができ、これら両者
が大きな力の作用下で接触することによるかじりや焼き
付きの発生を確実に防止することが可能となる。ここ
で、雄スプラインの大径外面とブッシュの内径面との隙
間Ｓを雌スプラインの歯溝側面と雄スプラインの歯側面
との隙間Ｓ３よりも小さくすることは、回転動力の非伝
達時、つまり各軸が回転していない状態において各軸の
自重が雌スプラインの歯溝側面と雄スプラインの歯側面
に作用することを防止することができ、例えば圧延機の
圧延ロールの駆動のように、回転動力の伝達と軸方向へ
の摺動とが同時に生じないスプライン継手においては、
雌スプラインと雄スプラインとの軸方向への摺動時に、
歯溝側面と歯側面に各軸の自重による力が加わることを
防止することが可能となり、特に有効である。[0012] By setting the mutual relationship of the gaps as described above, it is possible to prevent the female spline and the male spline from coming into contact with each other at their ends, and these two come into contact under the action of a large force. Therefore, it is possible to reliably prevent the occurrence of galling and image sticking. Here, making the gap S between the large-diameter outer surface of the male spline and the inner-diameter surface of the bush smaller than the gap S3 between the tooth groove side surface of the female spline and the tooth side surface of the male spline means that the rotational power is not transmitted, that is, It is possible to prevent the weight of each shaft from acting on the tooth groove side surface of the female spline and the tooth side surface of the male spline in a state where each shaft is not rotating. In spline joints where power transmission and sliding in the axial direction do not occur simultaneously,
When the female spline and the male spline slide in the axial direction,
This is particularly effective because it is possible to prevent a force due to the weight of each shaft from being applied to the tooth groove side surface and the tooth side surface.
【００１３】[0013]
【発明の実施の形態】以下、図面を参照しつつ本発明の
実施の形態について説明する。図１は本発明の実質の形
態の軸平行断面図であり、図２はそのＡ−Ａ断面図であ
る。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an axially parallel sectional view of a substantial embodiment of the present invention, and FIG. 2 is an AA sectional view thereof.
【００１４】第１の軸１はその基端部が例えばユニバー
サルジョイント（図示せず）等によって支持されている
ともとに、先端部の内周面には雌スプライン１１が形成
されている。また、第２の軸２は同じくその基端部が例
えばユニバーサルジョイント（図示せず）等によって支
持されているとともに、先端部の外周面には雄スプライ
ン２１が形成されており、雄スプライン２１が雌スプラ
イン１１内に軸方向に摺動自在に嵌まり込むことによっ
て、第１および第２の軸１および２は軸方向に相互に摺
動自在で、かつ、いずれか一方の軸の回転が他方の軸に
伝達される。The first shaft 1 has a base end supported by, for example, a universal joint (not shown) or the like, and a female spline 11 is formed on the inner peripheral surface of the front end. Similarly, the second shaft 2 has a base end portion supported by, for example, a universal joint (not shown) or the like, and a male spline 21 formed on an outer peripheral surface of a distal end portion. The first and second shafts 1 and 2 are slidable in the axial direction mutually by slidably fitting in the female spline 11 in the axial direction, and the rotation of one of the shafts is the other. Transmitted to the shaft.
【００１５】第１の軸１の内周面には、雌スプライン１
１の形成領域の両端部において周方向に一様な溝１０
ａ，１０ｂが形成されており、その各溝１０ａ，１０ｂ
にはそれぞれ銅合金製のブッシュ３ａ，３ｂが固着され
ている。第２の軸２の雄スプライン２１は、第１の軸１
の雌スプライン２１に嵌まり込むと同時に、その大径外
面２１ａが各ブッシュ３ａ，３ｂの内径面に隙間（片
側）Ｓを以て挿入されている。そして、この隙間Ｓは、
雌スプライン１１と雄スプライン２１との各部の隙間、
つまり雌スプライン１１の大径内面１１ａと雄スプライ
ン２１の大径外面２１ａとの隙間（片側）Ｓ１、雌スプ
ライン１１の小径内面１１ｂと雄スプライン２１の小径
外面２１ｂとの隙間（片側）Ｓ２、および、雌スプライ
ン１１の歯溝側面１１ｃと雄スプライン２１の歯側面２
１ｃとの隙間（片側）Ｓ３のいずれよりも小さく設定さ
れている。On the inner peripheral surface of the first shaft 1, a female spline 1 is provided.
1 is a circumferentially uniform groove 10 at both ends of the formation region 1
a, 10b are formed, and the respective grooves 10a, 10b
Are fixed to bushings 3a and 3b made of copper alloy, respectively. The male spline 21 of the second shaft 2 is
At the same time, the large-diameter outer surface 21a is inserted into the inner-diameter surfaces of the bushes 3a and 3b with a gap (one side) S therebetween. And this gap S is
Gaps between the female spline 11 and the male spline 21,
That is, a gap (one side) S1 between the large-diameter inner surface 11a of the female spline 11 and the large-diameter outer surface 21a of the male spline 21, a gap (one side) S2 between the small-diameter inner surface 11b of the female spline 11 and the small-diameter outer surface 21b of the male spline 21, and , The tooth groove side surface 11c of the female spline 11 and the tooth surface 2 of the male spline 21
It is set smaller than any of the gaps (one side) S3 with respect to 1c.
【００１６】以上の各隙間Ｓ，Ｓ１，Ｓ２，Ｓ３の設定
により、前記した図３のモデルと同様にして第１および
第２の軸１および２の自重がそれぞれの重心位置に作用
し、雌スプライン１１と雄スプライン２１との径方向へ
の隙間Ｓ１，Ｓ２によって各軸１，２が非平行となった
状態においても、雌スプライン１１と雄スプライン２１
はその各端面部において直接的に接触せずにブッシュ３
ａ，３ｂが介在した状態となり、各軸１，２の自重はブ
ッシュ３ａ，３ｂを介して雌スプライン１１および雄ス
プライン２１に作用する。また、第１および第２の軸１
および２が回転していない状態で軸方向に相互に摺動し
たときにおいて、Ｓ＜Ｓ３としているため、同じく各軸
１，２の自重は雌スプライン１１の歯溝側面と雄スプラ
イン２１の歯側面とに直接作用せず、ブッシュ３ａ，３
ｂに作用する。従って、雌スプライン１１と雄スプライ
ン２１は、そのいずれの箇所にも各軸１，２の自重に起
因するかじりや焼き付きが生じることがない。By setting the gaps S, S1, S2, and S3, the own weights of the first and second shafts 1 and 2 act on the respective centers of gravity in the same manner as in the model of FIG. Even when the shafts 1 and 2 are not parallel due to the radial gaps S1 and S2 between the spline 11 and the male spline 21, the female spline 11 and the male spline 21
Is a bush 3 without direct contact at each of its end faces.
Thus, the weights of the shafts 1 and 2 act on the female spline 11 and the male spline 21 via the bushes 3a and 3b. Also, the first and second shafts 1
When S and S 2 slide in the axial direction with each other in a non-rotating state, S <S3, so that the own weight of each of the shafts 1 and 2 is the tooth surface of the female spline 11 and the tooth surface of the male spline 21. Do not act directly on the bushes 3a, 3
Acts on b. Therefore, the female spline 11 and the male spline 21 do not seize or seize due to the weight of each of the shafts 1 and 2 anywhere.
【００１７】なお、以上の実施の形態では、ブッシュ３
ａ，３ｂとして銅合金を用いたが、本発明はこれに限定
されることなく、比較的軟質で潤滑性の良好な金属であ
れば任意の金属を用い得ることは勿論である。In the above embodiment, the bush 3
Although copper alloys were used as a and 3b, the present invention is not limited to this, but any metal can be used as long as it is relatively soft and has good lubricity.
【００１８】[0018]
【発明の効果】以上のように、本発明によれば、雌スプ
ラインおよび雄スプラインがそれぞれ形成された軸の自
重が、雌スプラインの両端部に設けられた軟金属製のブ
ッシュを設けた構造のスプライン継手において、各ブッ
シュの雄スプラインの大径外面との隙間を、雌スプライ
ンと雄スプラインの大径部の隙間並びに小径部の隙間、
および歯溝側面と歯側面との隙間のいずれよりも小さく
設定しているから、大型のスプライン継手であっても、
その自重によって雌スプラインの両端部において大きな
接触圧力のもとに直接的に雄スプラインと接触すること
がなく、かじりや焼き付きの発生を確実に防止すること
ができる。As described above, according to the present invention, the weight of the shaft on which the female spline and the male spline are formed is reduced by the soft metal bush provided at both ends of the female spline. In the spline joint, the gap between the large diameter outer surface of the male spline of each bush, the gap between the large diameter portion and the small diameter portion of the female spline and the male spline,
And because it is set smaller than any of the gap between the tooth space side and the tooth side, even a large spline joint,
Due to its own weight, both ends of the female spline do not come into direct contact with the male spline under a large contact pressure, so that the occurrence of galling or seizure can be reliably prevented.
【図１】本発明の実施の形態の軸平行断面図である。FIG. 1 is an axially parallel sectional view of an embodiment of the present invention.
【図２】図１のＡ−Ａ断面図である。FIG. 2 is a sectional view taken along line AA of FIG.
【図３】軸の自重に起因してスプライン継手の雌スプラ
イン両端部に作用する力を説明するためのモデル図であ
る。FIG. 3 is a model diagram for describing a force acting on both ends of a female spline of a spline joint due to the weight of the shaft.
１ 第１の軸 １０ａ，１０ｂ 溝 １１ 雌スプライン １１ａ 雌スプラインの大径内面 １１ｂ 雌スプラインの小径内面 １１ｃ 雌スプラインの歯溝側面 ２ 第２の軸 ２１ 雄スプライン ２１ａ 雄スプラインの大径外面 ２１ｂ 雄スプラインの小径外面 ２１ｃ 雄スプラインの歯側面 Reference Signs List 1 1st shaft 10a, 10b groove 11 female spline 11a large-diameter inner surface of female spline 11b small-diameter inner surface of female spline 11c tooth groove side surface of female spline 2 second shaft 21 male spline 21a large-diameter outer surface of male spline 21b male spline Small diameter outer surface 21c Male spline tooth side
Claims (1)
プラインの大径外面が嵌まり込む軟金属製のブッシュが
取り付けられたスプライン継手において、 上記ブッシュの内径面と雄スプラインの大径外面との隙
間（片側）をＳ、雌スプラインの大径内面と雄スプライ
ンの大径外面との隙間（片側）をＳ１、雌スプラインの
小径内面と雄スプラインの小径外面との隙間（片側）を
Ｓ２、および、雌スプラインの歯溝側面と雄スプライン
の歯側面との隙間（片側）をＳ３としたとき、 Ｓ＜Ｓ１、かつ、Ｓ＜Ｓ２、かつ、Ｓ＜Ｓ３ であることを特徴とするスプライン継手1. A spline joint in which a soft metal bush in which a large-diameter outer surface of a male spline is fitted at both ends of a female spline, wherein an inner surface of the bush and a large-diameter outer surface of the male spline are connected. The gap (one side) is S, the gap between the large-diameter inner surface of the female spline and the large-diameter outer surface of the male spline (one side) is S1, the gap between the small-diameter inner surface of the female spline and the small-diameter outer surface of the male spline (one side) is S2, and A gap (one side) between the tooth groove side surface of the female spline and the tooth side surface of the male spline, where S <S1, S <S2, and S <S3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24285299A JP2001065587A (en) | 1999-08-30 | 1999-08-30 | Spline coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24285299A JP2001065587A (en) | 1999-08-30 | 1999-08-30 | Spline coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001065587A true JP2001065587A (en) | 2001-03-16 |
Family
ID=17095243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24285299A Pending JP2001065587A (en) | 1999-08-30 | 1999-08-30 | Spline coupling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001065587A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7712388B2 (en) | 2004-12-20 | 2010-05-11 | Denso Corporation | Starter with overrunning clutch |
| JP2010221885A (en) * | 2009-03-24 | 2010-10-07 | Honda Motor Co Ltd | Motorcycle |
| KR101257475B1 (en) | 2011-04-27 | 2013-04-23 | 현대제철 주식회사 | Power supply for rolling apparatus |
| JP2013083180A (en) * | 2011-10-07 | 2013-05-09 | Denso Corp | Starter |
-
1999
- 1999-08-30 JP JP24285299A patent/JP2001065587A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7712388B2 (en) | 2004-12-20 | 2010-05-11 | Denso Corporation | Starter with overrunning clutch |
| JP2010221885A (en) * | 2009-03-24 | 2010-10-07 | Honda Motor Co Ltd | Motorcycle |
| KR101257475B1 (en) | 2011-04-27 | 2013-04-23 | 현대제철 주식회사 | Power supply for rolling apparatus |
| JP2013083180A (en) * | 2011-10-07 | 2013-05-09 | Denso Corp | Starter |
| US9062646B2 (en) | 2011-10-07 | 2015-06-23 | Denso Corporation | Starter |
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