JPH0740742Y2 - Fitting member mounting structure to drive shaft - Google Patents
Fitting member mounting structure to drive shaftInfo
- Publication number
- JPH0740742Y2 JPH0740742Y2 JP1989006731U JP673189U JPH0740742Y2 JP H0740742 Y2 JPH0740742 Y2 JP H0740742Y2 JP 1989006731 U JP1989006731 U JP 1989006731U JP 673189 U JP673189 U JP 673189U JP H0740742 Y2 JPH0740742 Y2 JP H0740742Y2
- Authority
- JP
- Japan
- Prior art keywords
- drive shaft
- fitting member
- dynamic damper
- nut member
- mounting structure
- 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 - Lifetime
Links
Landscapes
- Motor Power Transmission Devices (AREA)
- Gears, Cams (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、車両搭載用変速機の出力軸の駆動軸にダイナ
ミックダンパ等の嵌合部材を取付けるための、駆動軸へ
の嵌合部材取付構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is to mount a fitting member such as a dynamic damper on a drive shaft of an output shaft of a transmission mounted on a vehicle for mounting a fitting member on the drive shaft. It is about structure.
（従来技術） 従来、車両搭載用の歯車変速機の出力軸には、出力軸回
転時に発生する共振周波数を低下させることにより振動
や騒音を低減させるため、ダイナミックダンパが取付け
られている（実開昭59−21166号公報参照）。ダイナミ
ックダンパは、駆動軸の周面に嵌合する筒状の内側部材
と、この内側部材の外周面に同心円状に取付けられた環
状の弾性部材と、この弾性部材の外周面に取付けられた
筒状のウエイト部材とからなる。そして、ダイナミック
ダンパは出力軸の回転時に出力軸と共に回転し、弾性部
材に支持されたウエイト部材の作用によって出力軸の共
振周波数を低下させる。(Prior Art) Conventionally, a dynamic damper is attached to the output shaft of a gear transmission mounted on a vehicle in order to reduce vibration and noise by reducing a resonance frequency generated when the output shaft rotates. (See Japanese Patent Publication No. Sho 59-21166). The dynamic damper includes a cylindrical inner member fitted to the peripheral surface of the drive shaft, an annular elastic member concentrically attached to the outer peripheral surface of the inner member, and a cylindrical member attached to the outer peripheral surface of the elastic member. Shaped weight member. Then, the dynamic damper rotates together with the output shaft when the output shaft rotates, and lowers the resonance frequency of the output shaft by the action of the weight member supported by the elastic member.
そして、従来、このような構成のダイナミックダンパを
車両搭載用歯車変速機の出力軸に取付けるには、出力軸
の周面にスプラインを形成し、このスプラインに噛合う
ようなスプラインをダイナミックダンパの内側部材に形
成し、両スプラインを噛合わせると共に、ダイナミック
ダンパが軸方向へ変位しないように出力軸にストッパを
取付ける等している。Conventionally, in order to mount a dynamic damper having such a configuration on the output shaft of a vehicle-mounted gear transmission, a spline is formed on the peripheral surface of the output shaft, and a spline that meshes with the spline is formed inside the dynamic damper. It is formed on a member, and both splines are meshed with each other, and a stopper is attached to the output shaft so that the dynamic damper is not displaced in the axial direction.
（考案が解決しようとする問題点） しかし、上述のダイナミックダンパの取付構造では、出
力軸等の駆動軸にスプラインを加工しなければならない
から、軸強度を確保するために軸径が規制されるという
問題点がある。また、ダイナミックダンパと駆動軸とを
スプライン結合するため、両者間のガタツキを完全に消
滅させることができないという問題点がある。(Problems to be solved by the invention) However, in the mounting structure of the dynamic damper described above, since the spline must be processed on the drive shaft such as the output shaft, the shaft diameter is regulated to secure the shaft strength. There is a problem. Further, since the dynamic damper and the drive shaft are spline-coupled to each other, there is a problem that rattling between them cannot be completely eliminated.
そこで、本考案の目的は、駆動軸の強度を低下させるこ
となく嵌合部材を駆動軸に対してガタツキなく取付けら
れることができるようにした駆動軸への嵌合部材取付構
造を提供することにある。Therefore, an object of the present invention is to provide a fitting member mounting structure for a drive shaft, which enables the fitting member to be mounted on the drive shaft without rattling without lowering the strength of the drive shaft. is there.
（問題点を解決するための手段、作用） 上述の目的を達成するために本考案にあっては、 駆動軸外周に嵌合部材を固定するための駆動軸への嵌合
部材取付構造において、 前記駆動軸外周にナット部材が回転自在に設けられ、 前記駆動軸に、該ナット部材の駆動軸に対する所定の一
方向への変位を規制する反力受部材が設けられ、 前記駆動軸外周に第１テーパ部が形成され、 前記嵌合部材は、駆動軸に対して摺動自在とされて、前
記第１テーパ部に対して当接される第２テーパ部が形成
されると共に前記ナット部材に螺合されるねじ部が形成
され、 前記ナット部材を前記嵌合部材のねじ部に螺合させて、
前記反力受部材により該ナット部材の軸方向変位を規制
しつつ当該ナット部材を回転させることにより、前記嵌
合部材の第２テーパ部が前記第１テーパ部に圧接され
る、 ような構成としてある。(Means and Actions for Solving Problems) In order to achieve the above-mentioned object, in the present invention, in a fitting member mounting structure to a drive shaft for fixing the fitting member to the outer periphery of the drive shaft, A nut member is rotatably provided on the outer circumference of the drive shaft, and a reaction force receiving member is provided on the drive shaft to restrict displacement of the nut member in a predetermined direction with respect to the drive shaft. A first taper portion is formed, the fitting member is slidable with respect to the drive shaft, and a second taper portion that abuts against the first taper portion is formed. A screw part to be screwed is formed, and the nut member is screwed to the screw part of the fitting member,
By rotating the nut member while restricting the axial displacement of the nut member by the reaction force receiving member, the second taper portion of the fitting member is brought into pressure contact with the first taper portion. is there.
上述のような構成とすることにより、ナット部材は、反
力受部材により所定以上の軸方向変位が規制されるの
で、ナット部材の回転によりこれと螺合する嵌合部材は
その第２テーパ部が第１テーパ部へ向けて圧接する方向
に強制的に変位され、最終的に両テーパ部同士が圧接さ
れることになる。With the above-described configuration, the reaction force receiving member restricts the displacement of the nut member in the axial direction more than a predetermined amount, so that the fitting member screwed with the nut member by the rotation of the nut member has the second tapered portion. Is forcibly displaced in the direction in which it is pressed against the first tapered portion, and eventually both tapered portions are pressed against each other.
また、第１テーパ部を駆動軸外周に形成することから、
コッタ等の中間部材を駆動軸と嵌合部材との間に介在さ
せなくても、該嵌合部材を駆動軸に取付けることがで
き、しかも、嵌合部材の取付けに際しては、駆動軸外周
にナット部材を回転自在且つ軸方向に変位動不能に設
け、そのナット部材と嵌合部材のねじ部との螺合関係を
利用する構成であることから、駆動軸に対する嵌合部材
の取付け位置が制限を受けるようなことはなくなる。こ
のため、部品点数を極力抑えつつ、駆動軸に対してどこ
の位置においても嵌合部材を取付けることができること
になる。Further, since the first tapered portion is formed on the outer circumference of the drive shaft,
The fitting member can be attached to the drive shaft without interposing an intermediate member such as a cotter between the drive shaft and the fitting member. Moreover, when attaching the fitting member, the nut is attached to the outer circumference of the drive shaft. Since the member is rotatably provided so as not to be displaceable in the axial direction and the threaded relationship between the nut member and the threaded portion of the fitting member is utilized, the mounting position of the fitting member on the drive shaft is restricted. You will not receive it. Therefore, the fitting member can be attached at any position with respect to the drive shaft while suppressing the number of parts as much as possible.
（実施例） 以下、本考案の実施例を図面を参照しながら説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
第１図は本考案の第１実施例を示し、同図中、１は車両
搭載用歯車変速機の駆動軸（出力軸）である。駆動軸１
のダイナミックダンパ取付部1aには、嵌合部材としての
ダイナミックダンパ２がその筒状の内側部材2aを嵌合さ
せて取付けられている。ダイナミックダンパ２は上記内
側部材2aと、この内側部材2aの外周面に同心円状に取付
けられた弾性部材2bと、弾性部材2bの周面に固定された
筒状のウエイト部材2cとからなる。部材2a、2b、2cはあ
らかじめ一体的に組み立てられ、駆動軸１の左右いずれ
か一方からダイナミックダンパ取付部1aに嵌装される。FIG. 1 shows a first embodiment of the present invention, in which 1 is a drive shaft (output shaft) of a vehicle-mounted gear transmission. Drive shaft 1
A dynamic damper 2 as a fitting member is attached to the dynamic damper attachment portion 1a of the above by fitting the tubular inner member 2a thereof. The dynamic damper 2 comprises the inner member 2a, an elastic member 2b concentrically attached to the outer peripheral surface of the inner member 2a, and a cylindrical weight member 2c fixed to the peripheral surface of the elastic member 2b. The members 2a, 2b and 2c are integrally assembled in advance and fitted to the dynamic damper mounting portion 1a from either the left or right side of the drive shaft 1.
ダイナミックダンパ２の内側部材2aの一端部には筒状突
出部2dが一体的に形成されている。筒状突出部2dの外周
面には軸方向に延びる雄ねじ部2eが、また、その内周面
にはコーン状の第２テーパ部2fが、それぞれ形成されて
いる。コーン状の第２テーパ部2fは、図中右方が大径と
なるように形成される。A cylindrical protrusion 2d is integrally formed at one end of the inner member 2a of the dynamic damper 2. A male screw portion 2e extending in the axial direction is formed on the outer peripheral surface of the cylindrical protruding portion 2d, and a cone-shaped second taper portion 2f is formed on the inner peripheral surface thereof. The cone-shaped second taper portion 2f is formed such that the right side in the drawing has a large diameter.
駆動軸１には、また、ダイナミックダンパ取付部1aに隣
接する位置に２つ割りのコッタ３が装着され、コッタ３
の端面にはダイナミックダンパ２のテーパ部2fと係合す
る形状の第１テーパ部3aが形成されている。このコッタ
３が中間部材となり、また実施例では反力受部材として
も機能するものである。なお、コッタ３は、駆動軸１に
対して相対回転不能とされるが、このためには、駆動軸
１の外周に部分的に凹部を形成する一方、コッタ３に当
該凹部に嵌合される凸部を形成してもよい。The drive shaft 1 is also provided with a cotter 3 divided in two at a position adjacent to the dynamic damper mounting portion 1a.
A first taper portion 3a having a shape that engages with the taper portion 2f of the dynamic damper 2 is formed on the end surface of the. The cotter 3 serves as an intermediate member, and also functions as a reaction force receiving member in the embodiment. The cotter 3 is not rotatable relative to the drive shaft 1. For this purpose, a recess is partially formed on the outer periphery of the drive shaft 1, while the cotter 3 is fitted into the recess. You may form a convex part.
駆動軸１の周面のコッタ３に隣接する位置にはナット部
材４が回転自在に嵌装され、その雌ねじ部4aはダイナミ
ックダンパ２の雄ねじ部2eと螺合する。ナット部材４の
背面部にはストッパリング５が配置され、コッタ３と協
働してナット部材４を所定位置に保持している。図中、
1bは駆動軸１の周面に形成された環状の溝であり、スト
ッパリング５はこの溝1b内に配置されている。A nut member 4 is rotatably fitted at a position adjacent to the cotter 3 on the peripheral surface of the drive shaft 1, and a female screw portion 4a thereof is screwed with a male screw portion 2e of the dynamic damper 2. A stopper ring 5 is arranged on the back surface of the nut member 4, and cooperates with the cotter 3 to hold the nut member 4 at a predetermined position. In the figure,
Reference numeral 1b is an annular groove formed on the peripheral surface of the drive shaft 1, and the stopper ring 5 is arranged in this groove 1b.
このような構成の嵌合部材取付構造でダイナミックダン
パ２を駆動軸１に固定するには、ナット部材４の雌ねじ
部4aをダイナミックダンパ２の雄ねじ部2eに螺合させ、
テーパ部2f、3aが係合する方向にナット部材４を回転さ
せる。これにより、ナット部材４が図中左方への変位が
規制されているので、ダイナミックダンパ２は図中右方
に移動し、テーパ部2fと3aとが圧接してダイナミックダ
ンパ２の固定は完了する。また、ダイナミックダンパ２
を駆動軸１から取り外すには、ナット部材４を逆方向に
回転させ、ダイナミックダンパ２とナット部材４との係
合を解除すればよい。このとき、ストッパリング５によ
りナット部材４の図中右方への変位が規制されているの
で、ナット部材４の解除方向への回転により両テーパ部
2fと3aが強制的に離間、すなわちダンパ２が図中左方へ
強制的に変位される。In order to fix the dynamic damper 2 to the drive shaft 1 with the fitting member mounting structure having such a configuration, the female screw portion 4a of the nut member 4 is screwed into the male screw portion 2e of the dynamic damper 2,
The nut member 4 is rotated in the direction in which the tapered portions 2f and 3a are engaged. As a result, the displacement of the nut member 4 to the left in the figure is restricted, so the dynamic damper 2 moves to the right in the figure, and the taper portions 2f and 3a are brought into pressure contact with each other to complete the fixing of the dynamic damper 2. To do. Also, the dynamic damper 2
In order to remove the nut from the drive shaft 1, the nut member 4 may be rotated in the reverse direction to release the engagement between the dynamic damper 2 and the nut member 4. At this time, since the stopper ring 5 restricts the displacement of the nut member 4 to the right in the drawing, the rotation of the nut member 4 in the releasing direction causes both tapered portions to rotate.
2f and 3a are forcibly separated, that is, the damper 2 is forcibly displaced leftward in the drawing.
第２図は、本考案の第二実施例を示す。第２図中、第１
図と共通の符号を付した部材は同一名称の構成要素であ
る。この実施例の特徴は、ダイナミックダンパ２のテー
パ部2f′を内側部材2aの中央孔に形成し、このテーパ部
2f′と係合するテーパ部1cを駆動軸１の周面に形成した
点にある。そして、ダイナミックダンパ２を駆動軸１に
固定するには、ナット部材４を回転させてダイナミック
ダンパ２を図中、左方へ移動させ、両テーパ部2f′、1c
を係合させる。第２図中、６は、駆動軸１の環状溝1dに
嵌着されたストッパリングであり、このストッパリング
６が反力受部材として機能する。FIG. 2 shows a second embodiment of the present invention. First in FIG.
Members designated by the same reference numerals as those in the figure are components having the same name. The feature of this embodiment is that the tapered portion 2f 'of the dynamic damper 2 is formed in the central hole of the inner member 2a.
The taper portion 1c engaging with 2f 'is formed on the peripheral surface of the drive shaft 1. Then, in order to fix the dynamic damper 2 to the drive shaft 1, the nut member 4 is rotated to move the dynamic damper 2 to the left in the drawing, and the two tapered portions 2f 'and 1c are moved.
Engage. In FIG. 2, 6 is a stopper ring fitted in the annular groove 1d of the drive shaft 1, and this stopper ring 6 functions as a reaction force receiving member.
なお、上記第一及び第二実施例は車両搭載用歯車変速機
の出力軸にダイナミックダンパを取付けるための取付構
造を例にとって説明したが、本考案の適用対象はこれに
限られるものではなく、駆動軸の周面に嵌合部材を取付
けるような構成のものであれば広く適用可能である。Although the first and second embodiments have been described by taking the mounting structure for mounting the dynamic damper on the output shaft of the vehicle-mounted gear transmission as an example, the application of the present invention is not limited to this. It can be widely applied as long as it has a structure in which the fitting member is attached to the peripheral surface of the drive shaft.
（考案の効果） 以上説明したように、本考案の嵌合部材取付構造によれ
ば、駆動軸にスプラインを形成する必要がないから、軸
の強度を低下させることはなく嵌合部材を取付けること
ができる。(Effect of the Invention) As described above, according to the fitting member mounting structure of the present invention, it is not necessary to form a spline on the drive shaft, so that the fitting member can be mounted without reducing the strength of the shaft. You can
また、嵌合部材は駆動軸にテーパ部を介して嵌合するか
ら、両部材間にガタツキは生じない。さらに、部品点数
を極力抑えつつ、駆動軸に対してどこの位置においても
嵌合部材を取付けることができる。Further, since the fitting member is fitted to the drive shaft via the tapered portion, rattling does not occur between both members. Further, the fitting member can be attached at any position with respect to the drive shaft while suppressing the number of parts as much as possible.
第１図は、本考案の第一実施例の取付構造の要部断面
図。 第２図は、本考案の第二実施例の取付構造の要部断面
図。 1:駆動軸 1c:第１テーパ部 2:ダイナミックダンパ（嵌合部材） 2e:雄ねじ部 2f、2f′：第２テーパ部 3:コッタ（中間部材・反力受部材） 1c、3a:第１テーパ部 4:ナット部材 6:ストッパリング（反力受部材）FIG. 1 is a sectional view of an essential part of a mounting structure according to a first embodiment of the present invention. FIG. 2 is a sectional view of a main part of a mounting structure according to a second embodiment of the present invention. 1: Drive shaft 1c: 1st taper part 2: Dynamic damper (fitting member) 2e: Male screw part 2f, 2f ': 2nd taper part 3: Cotter (intermediate member / reaction force receiving member) 1c, 3a: 1st Tapered part 4: Nut member 6: Stopper ring (reaction force receiving member)
Claims (1)
動軸への嵌合部材取付構造において、 前記駆動軸外周にナット部材が回転自在に設けられ、 前記駆動軸に、該ナット部材の駆動軸に対する所定の一
方向への変位を規制する反力受部材が設けられ、 前記駆動軸外周に第１テーパ部が形成され、 前記嵌合部材は、駆動軸に対して摺動自在とされて、前
記第１テーパ部に対して当接される第２テーパ部が形成
されると共に前記ナット部材に螺合されるねじ部が形成
され、 前記ナット部材を前記嵌合部材のねじ部に螺合させて、
前記反力受部材により該ナット部材の軸方向変位を規制
しつつ当該ナット部材を回転させることにより、前記嵌
合部材の第２テーパ部が前記第１テーパ部に圧接され
る、 ことを特徴とする駆動軸への嵌合部材取付構造。1. A fitting member mounting structure for fixing a fitting member to an outer periphery of a drive shaft, wherein a nut member is rotatably provided on the outer periphery of the drive shaft, and the nut member is provided on the drive shaft. A reaction force receiving member that restricts displacement of the drive shaft in a predetermined direction with respect to the drive shaft, a first taper portion is formed on the outer periphery of the drive shaft, and the fitting member is slidable with respect to the drive shaft. To form a second taper portion that abuts against the first taper portion and a screw portion that is screwed into the nut member. The nut member is formed on the screw portion of the fitting member. Screw it together,
The second taper portion of the fitting member is pressed against the first taper portion by rotating the nut member while restricting the axial displacement of the nut member by the reaction force receiving member. Fitting member mounting structure to drive shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989006731U JPH0740742Y2 (en) | 1989-01-24 | 1989-01-24 | Fitting member mounting structure to drive shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989006731U JPH0740742Y2 (en) | 1989-01-24 | 1989-01-24 | Fitting member mounting structure to drive shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0298216U JPH0298216U (en) | 1990-08-06 |
| JPH0740742Y2 true JPH0740742Y2 (en) | 1995-09-20 |
Family
ID=31211146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989006731U Expired - Lifetime JPH0740742Y2 (en) | 1989-01-24 | 1989-01-24 | Fitting member mounting structure to drive shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0740742Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5182593B2 (en) * | 2009-11-25 | 2013-04-17 | 日本精工株式会社 | Toroidal continuously variable transmission and continuously variable transmission |
| JP7334059B2 (en) * | 2019-05-10 | 2023-08-28 | ナブテスコ株式会社 | Rotary shaft member holding mechanism and reducer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3900270A (en) * | 1973-09-22 | 1975-08-19 | Rolls Royce 1971 Ltd | Shaft couplings |
| JPS59141257U (en) * | 1983-03-11 | 1984-09-20 | 日立工機株式会社 | Pulley fixing device |
| JPS60152835U (en) * | 1984-03-23 | 1985-10-11 | 株式会社椿本チエイン | Fastening device for shaft and rotating body |
-
1989
- 1989-01-24 JP JP1989006731U patent/JPH0740742Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0298216U (en) | 1990-08-06 |
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