JPH0610216Y2 - Structure of shaft hole for press-fitting spline shaft - Google Patents
Structure of shaft hole for press-fitting spline shaftInfo
- Publication number
- JPH0610216Y2 JPH0610216Y2 JP1988159811U JP15981188U JPH0610216Y2 JP H0610216 Y2 JPH0610216 Y2 JP H0610216Y2 JP 1988159811 U JP1988159811 U JP 1988159811U JP 15981188 U JP15981188 U JP 15981188U JP H0610216 Y2 JPH0610216 Y2 JP H0610216Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- shaft hole
- spline shaft
- press
- hole
- 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
- Automatic Assembly (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、スプライン軸が圧入される軸孔の構造に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a structure of a shaft hole into which a spline shaft is press fitted.
（従来の技術） 従来の技術として、第３図および第４図に示す構造のも
のがあった。(Prior Art) As a conventional technology, there is a structure shown in FIG. 3 and FIG.
第３図および第４図において、１はトルクコンバータ式
自動変速機のオイルポンプカバーであり、軸心部に軸孔
２を有する。また、３は上記軸孔２に圧入される円筒状
のステータシャフトである。In FIGS. 3 and 4, reference numeral 1 denotes an oil pump cover of a torque converter type automatic transmission, which has a shaft hole 2 in its shaft center portion. Reference numeral 3 is a cylindrical stator shaft that is press-fitted into the shaft hole 2.
上記オイルポンプカバー１はアルミニューム合金材から
なり、上記ステータシャフト３はオイルポンプカバー１
よりも硬質のステンレス鋼材からなる。The oil pump cover 1 is made of an aluminum alloy material, and the stator shaft 3 is the oil pump cover 1
Made of harder stainless steel.
上記ステータシャフト３は、その左端部に主体３ａの外
径よりも小径のスプライン軸３ｂが形成されてなる。The stator shaft 3 is formed with a spline shaft 3b having a diameter smaller than the outer diameter of the main body 3a at the left end thereof.
上記オイルポンプカバー１の軸孔２は、その左部軸孔２
ａの内径Ｄ１が上記ステータシャフト３のスプライン軸
３ｂの大径寸法Ｄ３よりも若干小寸に、その右部軸孔２
ｂの内径Ｄ２が上記ステータシャフト３の主体３ａの外
径Ｄ４よりも若干小寸に形成されてなる。The shaft hole 2 of the oil pump cover 1 is the left shaft hole 2 thereof.
The inner diameter D1 of a is slightly smaller than the large diameter dimension D3 of the spline shaft 3b of the stator shaft 3, and the right portion axial hole 2
The inner diameter D2 of b is slightly smaller than the outer diameter D4 of the main body 3a of the stator shaft 3.
なお、４は左部軸孔２ａと右部軸孔２ｂとの境界部に形
成した環状の凹溝であり、応力集中の発生を防止するた
めのものである。Reference numeral 4 denotes an annular groove formed at the boundary between the left shaft hole 2a and the right shaft hole 2b to prevent stress concentration from occurring.
そして、ステータシャフト３をオイルポンプカバー１に
対してその右方から移動させて、ステータシャフト３の
スプライン軸３ｂおよびその主体３ａ左部を、オイルポ
ンプカバー１の左部軸孔２ａおよび右部軸孔２ｂに圧入
させる。Then, the stator shaft 3 is moved from the right side with respect to the oil pump cover 1 so that the spline shaft 3b of the stator shaft 3 and the left part of the main body 3a are connected to the left shaft hole 2a and the right shaft of the oil pump cover 1. Press it into the hole 2b.
（考案が解決しようとする課題） 左部軸孔２ａとスプライン軸３ｂとの圧入時には、第５
図に示すように、左部軸孔２ａの内壁がスプライン軸３
ｂに削られて切り屑５が発生することになる。(Problems to be solved by the invention) When press-fitting the left shaft hole 2a and the spline shaft 3b,
As shown in the figure, the inner wall of the left shaft hole 2a is the spline shaft 3
Chips 5 are generated by being cut by b.
この場合、従来は左部軸孔２ａが左右方向（軸方向）に
連続していたので、上記切り屑５が連続した長いものと
なり、この切り屑５が左部軸孔２ａとスプライン軸３ｂ
との嵌合部に巻き込まれて圧入時の抵抗が増大する欠点
があった。In this case, since the left shaft hole 2a has been continuous in the left-right direction (axial direction) in the related art, the chips 5 are long and continuous, and the chips 5 are left parts of the left shaft hole 2a and the spline shaft 3b.
There was a drawback that the resistance during press-fitting was increased due to being caught in the fitting part of.
本考案は上記切り屑の巻き込みを防止できるスプライン
軸圧入用軸孔の構造を得ることを目的とする。An object of the present invention is to obtain a structure of a spline shaft press-fitting shaft hole capable of preventing the above chips from being caught.
（課題を解決するための手段） 本考案は、上記目的を達成するために、スプライン軸が
嵌合する軸孔の径をスプライン軸の大径寸法よりも若干
小寸に形成し、前記スプライン軸の先端が通過する前記
軸孔の軸方向の途中にスプライン軸の大径寸法よりも若
干大寸の環状溝を形成する構成にしたものである。(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention forms a shaft hole into which a spline shaft is fitted to have a diameter slightly smaller than the large diameter size of the spline shaft. Is formed in the axial direction of the shaft hole through which the tip of the shaft passes. An annular groove slightly larger than the large diameter size of the spline shaft is formed.
（作用） 本考案は上記構成にしたものであるから、軸孔とスプラ
イン軸との圧入時に、スプライン軸の先端により削られ
て発生した軸孔の切り屑は、環状溝部で分断されること
になる。(Operation) Since the present invention is configured as described above, when the shaft hole and the spline shaft are press-fitted, the chips of the shaft hole generated by being scraped by the tip of the spline shaft are divided by the annular groove portion. Become.
（実施例） 以下本考案の実施例を図面に基いて説明する。(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.
図面において、第１図は本考案の実施例を示す断面図、
第２図は軸孔とスプライン軸との圧入状態を示す断面図
である。In the drawings, FIG. 1 is a sectional view showing an embodiment of the present invention,
FIG. 2 is a sectional view showing a press-fitted state of the shaft hole and the spline shaft.
なお、第１図〜第２図において、第３図〜第５図と同構
造の部分は、第１図〜第２図に第３図〜第５図と同符号
を附してその説明を省略する。In FIGS. 1 and 2, parts having the same structure as in FIGS. 3 to 5 are given the same reference numerals in FIGS. 1 and 2 as in FIGS. Omit it.
第１図において、６は環状溝であり、この環状溝６は、
スプライン軸３ｂが圧入する左部軸孔２ａの左右方向
（軸方向）中心部、即ちスプライン軸３ｂの左端（先
端）が通過する右部内壁２ａ−１と左部内壁２ａ−２と
の間に形成する。In FIG. 1, 6 is an annular groove, and this annular groove 6 is
The left and right (axial direction) center of the left shaft hole 2a into which the spline shaft 3b is press-fitted, that is, between the right inner wall 2a-1 and the left inner wall 2a-2 through which the left end (tip) of the spline shaft 3b passes. Form.
上記環状溝６は、その溝幅を小さくかつその内径Ｄ５を
第４図に示すスプライン軸３ｂの大径寸法Ｄ３よりも若
干大寸に形成してなる。The annular groove 6 has a small groove width and an inner diameter D5 slightly larger than the large diameter dimension D3 of the spline shaft 3b shown in FIG.
次ぎに上記実施例の作用・効果について説明する。Next, the operation and effect of the above embodiment will be described.
第２図に示すように、ステータシャフト３をオイルポン
プカバー１に対してその右方から移動させて、ステータ
シャフト３のスプライン軸３ｂおよびその主体３ａの左
部を、オイルポンプカバー１の左部軸孔２ａおよび右部
軸孔２ｂに圧入させると、この圧入時において、左部軸
孔２ａの内壁がスプライン軸３ｂの左端（先端）に削ら
れて切り屑７が発生することになる。As shown in FIG. 2, the stator shaft 3 is moved from the right side with respect to the oil pump cover 1 so that the left portion of the spline shaft 3b of the stator shaft 3 and the main body 3a of the stator shaft 3 become the left portion of the oil pump cover 1. When press-fitting into the shaft hole 2a and the right shaft hole 2b, the inner wall of the left shaft hole 2a is scraped at the left end (tip) of the spline shaft 3b during this press-fitting, and chips 7 are generated.
この場合、上記切り屑７は、スプライン軸３ｂの左端
（先端）が環状溝６部に到来すると、第２図に示すよう
に、左部軸孔２ａの右部内壁２ａ−１で発生した切り屑
７が環状溝６部にて分断され、スプライン軸３ｂの左端
が環状溝６部を通過して左部軸孔２ａの左部内壁２ａ−
２に進行する際には、この左部内壁２ａ−２で新たな切
り屑７が発生することになる。In this case, when the left end (tip) of the spline shaft 3b arrives at the annular groove 6 in this case, as shown in FIG. 2, the chips 7 are generated in the right inner wall 2a-1 of the left shaft hole 2a. The scrap 7 is divided by the annular groove 6 part, the left end of the spline shaft 3b passes through the annular groove 6 part, and the left inner wall 2a- of the left axial hole 2a-
When advancing to 2, new chips 7 will be generated on the left inner wall 2a-2.
このため、スプライン軸３ｂの嵌合によって左部軸孔２
ａ部で発生する切り屑７は、短寸に分断されて左部軸孔
２ａとスプライン軸３ｂとの嵌合部に巻き込まれなくな
り、圧入時の抵抗が低減することになる。Therefore, by fitting the spline shaft 3b, the left shaft hole 2
The chips 7 generated in the portion a are divided into short pieces and are not caught in the fitting portion between the left shaft hole 2a and the spline shaft 3b, and the resistance during press fitting is reduced.
なお、本考案は、環状溝６を軸方向に間隔をおいて複数
個形成するようにしてもよい。In the present invention, a plurality of annular grooves 6 may be formed at intervals in the axial direction.
（考案の効果） 以上の説明から明らかな如く、本考案は、軸孔の径をス
プライン軸の大径寸法よりも若干小寸に形成し、スプラ
イン軸の先端が通過する上記軸孔の軸方向の途中に、ス
プライン軸の大径寸法よりも若干大寸の環状溝を形成
し、これによりスプライン軸の嵌合時に軸孔に発生する
切り屑を短寸に分断するようにしたので、上記切り屑が
軸孔とスプライン軸との嵌合部に巻き込まれなくなり、
軸孔とスプライン軸との圧入抵抗を低減することができ
る効果を奏する。(Effect of the Invention) As is apparent from the above description, in the present invention, the diameter of the shaft hole is formed slightly smaller than the large diameter dimension of the spline shaft, and the axial direction of the shaft hole through which the tip of the spline shaft passes. In the middle of the process, an annular groove slightly larger than the large diameter dimension of the spline shaft was formed, so that the chips generated in the shaft hole at the time of fitting the spline shaft were divided into short pieces. Scrap will not get caught in the fitting part between the shaft hole and the spline shaft,
It is possible to reduce the press-fitting resistance between the shaft hole and the spline shaft.
第１図は本考案の実施例を示す断面図、第２図は軸孔と
スプライン軸との圧入状態を示す断面図、第３図は従来
例を示す断面図、第４図はスプライン軸の断面図、第５
図は従来例による軸孔とスプライン軸との圧入状態を示
す断面図である。 １：オイルポンプカバー、２：軸孔、２ａ：左部軸孔、
２ａ−１：右部内壁、２ａ−２：左部内壁、２ｂ：右部
軸孔、３：ステータシャフト、３ａ：主体、３ｂ：スプ
ライン軸、６：環状溝、７：切り屑。FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view showing a press-fitted state of a shaft hole and a spline shaft, FIG. 3 is a sectional view showing a conventional example, and FIG. 4 is a spline shaft. Sectional view, fifth
The figure is a sectional view showing a press-fitted state of a shaft hole and a spline shaft according to a conventional example. 1: Oil pump cover, 2: Shaft hole, 2a: Left shaft hole,
2a-1: right inner wall, 2a-2: left inner wall, 2b: right shaft hole, 3: stator shaft, 3a: main body, 3b: spline shaft, 6: annular groove, 7: chips.
Claims (1)
イン軸の大径寸法よりも若干小寸に形成し、前記スプラ
イン軸の先端が通過する前記軸孔の軸方向の途中にスプ
ライン軸の大径寸法よりも若干大寸の環状溝を形成した
ことを特徴とするスプライン軸圧入用軸孔の構造。1. A spline shaft is formed such that the diameter of the shaft hole is slightly smaller than the large diameter of the spline shaft, and the tip of the spline shaft passes midway in the axial direction of the shaft hole. The structure of the spline shaft press-fitting shaft hole is characterized by forming an annular groove slightly larger than the large diameter size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988159811U JPH0610216Y2 (en) | 1988-12-08 | 1988-12-08 | Structure of shaft hole for press-fitting spline shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988159811U JPH0610216Y2 (en) | 1988-12-08 | 1988-12-08 | Structure of shaft hole for press-fitting spline shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0280225U JPH0280225U (en) | 1990-06-20 |
| JPH0610216Y2 true JPH0610216Y2 (en) | 1994-03-16 |
Family
ID=31441341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988159811U Expired - Lifetime JPH0610216Y2 (en) | 1988-12-08 | 1988-12-08 | Structure of shaft hole for press-fitting spline shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0610216Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009248788A (en) * | 2008-04-08 | 2009-10-29 | Jtekt Corp | Bearing device for wheel |
| JP2009248594A (en) * | 2008-04-01 | 2009-10-29 | Ntn Corp | Bearing device for wheel |
| JP2009255659A (en) * | 2008-04-15 | 2009-11-05 | Ntn Corp | Bearing device for wheel |
| JP2010047043A (en) * | 2008-08-19 | 2010-03-04 | Ntn Corp | Bearing device for driving wheel, and axle unit equipped with the bearing device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53122056A (en) * | 1977-03-31 | 1978-10-25 | Skf Nova Ab | Fixing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5398269U (en) * | 1977-01-12 | 1978-08-09 |
-
1988
- 1988-12-08 JP JP1988159811U patent/JPH0610216Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53122056A (en) * | 1977-03-31 | 1978-10-25 | Skf Nova Ab | Fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0280225U (en) | 1990-06-20 |
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