JPH033806B2 - - Google Patents
Info
- Publication number
- JPH033806B2 JPH033806B2 JP61095679A JP9567986A JPH033806B2 JP H033806 B2 JPH033806 B2 JP H033806B2 JP 61095679 A JP61095679 A JP 61095679A JP 9567986 A JP9567986 A JP 9567986A JP H033806 B2 JPH033806 B2 JP H033806B2
- Authority
- JP
- Japan
- Prior art keywords
- spline
- tooth
- shaft
- spline shaft
- teeth
- 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
- 238000005096 rolling process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Gears, Cams (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はスプライン軸に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a spline shaft.
（従来技術）
歯車等の軸孔に内歯を形成して、この部分を軸
端に設けたスプラインに嵌合させるスプライン継
手は、嵌め合わせに大きな力を必要とするほか、
嵌め合わせた後にガタが生じかねない問題を有し
ている。(Prior art) Spline joints, in which internal teeth are formed in the shaft hole of a gear, etc., and this part is fitted to a spline provided at the shaft end, require a large amount of force for fitting.
There is a problem that looseness may occur after fitting.
特開昭59−107738号公報に開示されたものは、
かかる問題を解消すべく、スプライン軸の開放側
端部の歯形を正規の歯厚より肉薄となして歯車等
の挿入を容易になしたものであるが、この種のも
のでも、挿入した後の嵌め合せの段階においては
かなりの押圧力が必要になるほか、転造用平ダイ
スの歯形形成がきわめて困難で、その成形に多大
のコストを要するといつた問題を有している。 What was disclosed in Japanese Patent Application Laid-Open No. 59-107738 is
In order to solve this problem, the tooth profile at the open end of the spline shaft is made thinner than the normal tooth thickness to make it easier to insert gears, etc., but even with this type of shaft, In addition to requiring a considerable pressing force at the fitting stage, it is extremely difficult to form the tooth profile of the flat rolling die, and the forming process requires a large amount of cost.
（目的）
本発明は、一般的にスプライン軸またはスプラ
イン軸に嵌め合わされる歯車等には回転駆動力が
一定の向きで作用することに着目してなされたも
ので、その目的とするところは、歯車等をわずか
な力で嵌め合わせることができ、しかも簡単な転
造用工具によつて容易に成形することのできる新
たなスプライン軸を提供することにある。(Objective) The present invention has been made by focusing on the fact that rotational driving force generally acts in a fixed direction on a spline shaft or a gear fitted to a spline shaft, and its purpose is to: To provide a new spline shaft which can fit gears etc. with a slight force and can be easily formed with a simple rolling tool.
（目的を達成するための手段）
すなわち本発明はかかる目的を達成するため
に、軸端に、嵌め合わすべき部材の内歯と容易に
嵌合する程度の歯厚となしたスプライン歯を形成
するとともに、上記内歯との間にバツクラツシユ
が形成される側の該スプライン軸上の歯の軸方向
内奥端に位置する側面部分に、歯底に向けて拡が
る略三角形状のバツクラツシユ吸収用の台状凸部
を形成したことを特徴とするスプライン軸にあ
る。(Means for Achieving the Object) That is, in order to achieve the object, the present invention forms spline teeth at the end of the shaft with a thickness such that they can easily fit with the internal teeth of the member to be fitted. In addition, a substantially triangular backlash absorbing table extending toward the bottom of the tooth is provided on the side surface portion located at the axially inner rear end of the tooth on the spline shaft on the side where the backlash is formed between the inner tooth and the inner tooth. The spline shaft is characterized by having a convex portion formed therein.
（実施例）
そこで以下に本発明の詳細を図示した実施例に
基づいて説明する。(Example) The details of the present invention will be described below based on illustrated examples.
第１図はクランクシヤフト等に適用した本発明
の一実施例を示すものであつて、図中符号１は軸
端周面にインボリユート歯形のセレーシヨンもし
くはスプライン歯２……を形成したスプライン軸
で、この軸端の歯２……は、一対の転造用平ダイ
ス７，７（第３図）の間にスプライン軸１を介挿
させた上、これら平ダイス７，７を互いに逆方向
に相対的に平行移動させることによつて、これら
の各対向面に設けた正規の歯厚より若干厚いイン
ボリユートスプライン歯形８……により正規の歯
厚より若干薄く形成される。 Fig. 1 shows an embodiment of the present invention applied to a crankshaft, etc., and the reference numeral 1 in the figure is a spline shaft in which involute tooth profile serrations or spline teeth 2 are formed on the peripheral surface of the shaft end. The teeth 2 at the end of this shaft are formed by inserting the spline shaft 1 between a pair of flat rolling dies 7, 7 (Fig. 3), and then moving these flat dies 7, 7 relative to each other in opposite directions. By moving parallel to each other, the involute spline tooth profile 8 provided on each of these opposing surfaces is formed to be slightly thinner than the normal tooth thickness.
また、このスプライン軸１には、歯車５の内歯
６との間にバツクラツシユが形成される側の各ス
プライン歯２……の軸方向内端部一側面３……、
つまり、嵌め合わされる歯車５側に回転駆動力が
作用するものにおいてはスプライン軸１上の歯２
……の回転方向前側面、また、スプライン軸１側
に駆動力が作用するものにおいてはスプライン軸
１上の歯２の回転方向後側面に、10乃至100μｍ
程度の範囲のもとで設定されるある厚みを持つた
バツクラツシユ吸収用の台状凸部３……が、歯底
側に向けて徐々に広くなるような略三角形状に形
成されている。 The spline shaft 1 also includes one side surface 3 of the axially inner end of each spline tooth 2 on the side where the backlash is formed between the spline shaft 1 and the inner tooth 6 of the gear 5.
In other words, in the case where the rotational driving force acts on the gear 5 side to be fitted, the teeth 2 on the spline shaft 1
10 to 100 μm on the front side in the rotational direction of ..., or on the rear side in the rotational direction of the tooth 2 on the spline shaft 1 in the case where the driving force acts on the spline shaft 1 side.
A trapezoidal convex portion 3 for absorbing bumps having a certain thickness set under a certain range of thickness is formed in a substantially triangular shape that gradually becomes wider toward the tooth bottom side.
これらの台状凸部３……もスプライン歯２……
の成形と同時に転造により形成されるが、これに
は、転造用平ダイス７，７の各歯形８……（第４
図）の端部一側面に円形の研削砥石等を当ててそ
の部分の歯厚を若干薄く研削し、このようにして
形成された研削部９……により台状凸部３……が
形成される。 These trapezoidal convex portions 3... also have spline teeth 2...
It is formed by rolling at the same time as the forming of the flat rolling dies 7, 7.
A circular grinding wheel or the like is applied to one side of the end of the figure) to grind the tooth thickness of that part to be slightly thinner, and the thus formed grinding part 9 forms the trapezoidal convex part 3... Ru.
したがつて、このようにして形成されたスプラ
イン軸１の軸端に嵌め合わすべき歯車５を嵌め込
むと、スプライン軸１上には各スプライン歯２…
…が正規の歯厚より若干薄く形成されているた
め、歯車５はわずかな力をもつて嵌め込むことが
できる。そして、嵌め込みの終端において歯車５
の内歯６がスプライン歯２……一側面の凸部３…
…に当接した段階で、ハンマー等をもつて歯車５
に衝撃力を加えるか、もしくは螺着用工具により
螺着方向の押圧力を加えると、歯車５はスプライ
ン軸１上に強固に嵌合わされる。 Therefore, when the gear 5 to be fitted is fitted to the shaft end of the spline shaft 1 formed in this way, each spline tooth 2...
Since the teeth are formed to be slightly thinner than the regular tooth thickness, the gear 5 can be fitted with a slight force. Then, at the end of the fitting, the gear 5
The inner teeth 6 of the spline teeth 2...the convex portions 3 on one side...
When it comes into contact with gear 5, use a hammer etc. to
The gear 5 is firmly fitted onto the spline shaft 1 by applying an impact force to the spline shaft 1 or by applying a pressing force in the screwing direction using a screwing tool.
そしてこのように嵌め合わされると、歯車５の
内歯６……は、それぞれ台状凸部３……によりス
プライン軸１の歯２……の一方に偏奇し、駆動力
が作用する側の面同士が互いに隙間なく密着し
て、広い面に駆動力が作用するように嵌合し合
う。 When fitted together in this manner, the internal teeth 6 of the gear 5 are biased toward one side of the teeth 2 of the spline shaft 1 by the trapezoidal convex portions 3, and the surface on the side on which the driving force acts They fit into each other so that they fit closely together without any gaps and the driving force acts on a wide surface.
なお、以上は重負荷用のスプライン継手とし
て、軸端にインボリユートスプライン歯型を形成
したスプライン軸の例をもつて本発明を説明した
が、軽負荷用の小さい歯型スプラインを有するも
の、あるいは傾斜底スプラインを有する軸にも本
発明を適用することができる。 The present invention has been explained above using an example of a spline shaft with involute spline teeth formed at the shaft end as a spline joint for heavy loads, but it is also applicable to spline joints with small tooth type splines for light loads. Alternatively, the present invention can also be applied to a shaft having an inclined bottom spline.
（効果）
以上述べたように本発明によれば、軸端に嵌め
合わすべき部材の内歯と容易に嵌合する程度の歯
厚となしたスプライン歯を形成するとともに、そ
の歯の軸方向内奥端におけるバツクラツシユがで
きる側の一面に台状の凸部を設けたので、嵌め合
わすべき部材をスプライン軸に容易に嵌め合わす
ことができると同時に、回転駆動力が作用する側
の面同士を、台状凸部によりすきまなく密接させ
ることができる。(Effects) As described above, according to the present invention, spline teeth are formed with a thickness such that they can easily fit with the internal teeth of a member to be fitted to the shaft end, and Since a table-shaped convex portion is provided on one surface of the rear end on the side where the buckle is generated, the parts to be fitted can be easily fitted onto the spline shaft, and at the same time, the surfaces on the side on which the rotational driving force acts, The trapezoidal convex portion allows for close contact without any gaps.
しかも、台状の凸部を歯形の軸方向内奥端に設
けるようにしたので、この種のスプライン歯形を
形成するにあたつては、転造用平ダイスの歯形の
端部一側面を円形の研削砥石等を用いて単に研削
すれば足りるなど、その転造用工具をも簡単に成
形することができる。 Moreover, since the trapezoidal convex portion is provided at the innermost end in the axial direction of the tooth profile, when forming this type of spline tooth profile, one side of the end of the tooth profile of the flat rolling die is circular. The rolling tool can also be easily formed by simply grinding using a grinding wheel or the like.
第１図は本発明の一実施例を示すスプライン軸
の要部の斜視図、第２図はスプライン歯形と内歯
との嵌合状態を示す図、第３図はこのスプライン
軸の成形に用いられる転造装置の模式図、第４図
はその平ダイスの歯型を拡大して示した斜視図で
ある。
１……スプライン軸、２……スプライン歯形、
３……台状凸部、７……転造用平ダイス、８……
歯形、９……研削部。
Fig. 1 is a perspective view of the main parts of a spline shaft showing an embodiment of the present invention, Fig. 2 is a view showing the fitted state of the spline tooth profile and the internal teeth, and Fig. 3 is a diagram showing the state in which the spline shaft is used for forming the spline shaft. FIG. 4 is a perspective view showing an enlarged tooth pattern of the flat die. 1...Spline shaft, 2...Spline tooth profile,
3... Trapezoidal convex portion, 7... Flat die for rolling, 8...
Tooth profile, 9...Grinding part.
Claims (1)
嵌合する程度の歯厚となしたスプライン歯を形成
するとともに、上記内歯との間にバツクラツシユ
が形成される側の該スプライン軸上の歯の軸方向
内奥端に位置する側面部分に、歯底に向けて拡が
る略三角形状のバツクラツシユ吸収用の台状凸部
を形成したことを特徴とするスプライン軸。1. On the shaft end, spline teeth are formed with a tooth thickness such that they can easily fit with the internal teeth of the member to be fitted, and on the spline shaft on the side where a backlash is formed between the internal teeth and the internal teeth. A spline shaft characterized in that a substantially triangular backlash-absorbing trapezoidal protrusion that expands toward the tooth bottom is formed on a side surface portion located at the axially inner rear end of the tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61095679A JPS62251524A (en) | 1986-04-23 | 1986-04-23 | Spline shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61095679A JPS62251524A (en) | 1986-04-23 | 1986-04-23 | Spline shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62251524A JPS62251524A (en) | 1987-11-02 |
| JPH033806B2 true JPH033806B2 (en) | 1991-01-21 |
Family
ID=14144186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61095679A Granted JPS62251524A (en) | 1986-04-23 | 1986-04-23 | Spline shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62251524A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0723615Y2 (en) * | 1989-04-19 | 1995-05-31 | 株式会社富士鉄工所 | Shaft spline tooth structure |
| DE102020111679A1 (en) | 2020-04-29 | 2021-11-04 | Valeo Siemens Eautomotive Germany Gmbh | Shaft, forming tool, manufacturing process and rotor for an electrical machine |
-
1986
- 1986-04-23 JP JP61095679A patent/JPS62251524A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62251524A (en) | 1987-11-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |