JPH0631122Y2 - Camsyaft - Google Patents
CamsyaftInfo
- Publication number
- JPH0631122Y2 JPH0631122Y2 JP1986116728U JP11672886U JPH0631122Y2 JP H0631122 Y2 JPH0631122 Y2 JP H0631122Y2 JP 1986116728 U JP1986116728 U JP 1986116728U JP 11672886 U JP11672886 U JP 11672886U JP H0631122 Y2 JPH0631122 Y2 JP H0631122Y2
- Authority
- JP
- Japan
- Prior art keywords
- cam piece
- shaft
- cam
- camshaft
- inner diameter
- 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
- Valve-Gear Or Valve Arrangements (AREA)
Description
【考案の詳細な説明】 ＜産業上の利用分野＞ 本考案は、組立型のカムシャフトに関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an assembled camshaft.
＜従来の技術＞ エンジンの動弁機構のカムシャフトにおいて、シャフト
とカムピースとを別個に製造して両部品を組立てる組立
型カムシャフトが採用されている。従来の組立型カムシ
ャフトは、シャフトとカムピースの結合を溶接，焼結，
バルジ加工，鋳ぐるみ及びロー付キー等であった。<Prior Art> In a camshaft of a valve operating mechanism of an engine, an assembly type camshaft in which a shaft and a cam piece are separately manufactured and both parts are assembled is adopted. The conventional assembly type camshaft is welding, sintering,
It was bulge processing, cast dolls and keys with brazing.
＜考案が解決しようとする問題点＞ 上記従来の組付結合によるカムシャフトには、その組付
工程あるいは強度，耐久性の点で一長一短があり、殊に
溶接結合の場合、シャフトとカムピースは相互に溶接可
能な金属に特定される。従って、耐摩耗性等が要求され
るカムピースは高級材を用いる必要があり、これに伴っ
てシャフトも同質の高級材を使用しなければならず、コ
スト高となっている。<Problems to be Solved by the Invention> The above-described conventional camshaft by assembling and coupling has advantages and disadvantages in terms of the assembling process, strength, and durability. Specific to weldable metal. Therefore, it is necessary to use a high-quality material for the cam piece that is required to have wear resistance and the like, and accordingly, the shaft must also use a high-quality material of the same quality, resulting in high cost.
＜問題点を解決するための手段＞ 本考案は、上記従来の問題点を解決した組立型のカムシ
ャフトを提供するものであり、その構成は、溶接可能な
金属材のカムシャフトと、このカムシャフトの外周に嵌
合する内径穴を持った硬質合金，セラミックス等のカム
ピースとからなり、前記カムピースの内径穴側に係合凹
部を設け、前記カムシャフトに嵌合したカムピースの定
位置において、前記係合凹部と対応するカムシャフトの
外周面に前記係合凹部と係合してカムピースを相対回転
並びに軸方向の移動を規制する溶接肉盛り隆起部を形成
したものである。<Means for Solving the Problems> The present invention provides an assembly type camshaft that solves the above-mentioned conventional problems, and has a structure of a weldable metal camshaft and the cam. The cam piece is made of a hard alloy, ceramics, or the like having an inner diameter hole that fits on the outer periphery of the shaft, an engaging recess is provided on the inner diameter hole side of the cam piece, and at a fixed position of the cam piece fitted to the cam shaft, A weld build-up ridge is formed on the outer peripheral surface of the cam shaft corresponding to the engaging recess to engage with the engaging recess to restrict relative rotation and axial movement of the cam piece.
＜作用＞ 本考案は、カムシャフトの嵌合したカムピースを内径穴
の設けた係合凹部に係合するカムシャフトの外周面の溶
接肉盛り隆起部によりカムシャフトとカムピースとの相
対回転並びに軸方向の移動を規制して一体化される。従
って、カムシャフトは溶接可能な一般材料を用い、カム
ピースのみ硬質，高級材で、しかも非溶接性材料の適用
を可能とする。<Effect> The present invention is designed to allow the cam piece fitted with the cam shaft to be engaged with the engaging recess provided with the inner diameter hole by the weld build-up ridge on the outer peripheral surface of the cam shaft so that the cam shaft and the cam piece rotate relative to each other and in the axial direction. Is regulated and integrated. Therefore, the camshaft uses a general material that can be welded, and only the cam piece is a hard and high-grade material, and a non-weldable material can be applied.
＜実施例＞ 以下本考案の実施例を図面に基づいて説明する。第１図
において、１は溶接可能な金属材のシャフトである。２
は前記シャフトの外周面に回転方向並びに軸線方向の移
動を規制して嵌合組付けされたカムピースである。この
カムピース２はシャフト１の外径Ｄに嵌合する内径穴３
と、この内径穴３の両端縁６（第２図参照）に設けた切
欠凹部４（係合凹部）又は外周部に設けた内径穴まで貫
通する穴部７（係合凹部）を有し、この切欠凹部４又は
穴部７に係合する肉盛り隆起部５がシャフト１の外周面
に形成されている。<Embodiment> An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a weldable metal shaft. Two
Is a cam piece fitted and assembled on the outer peripheral surface of the shaft while restricting movement in the rotational direction and the axial direction. This cam piece 2 has an inner diameter hole 3 that fits into the outer diameter D of the shaft 1.
And a notch concave portion 4 (engaging concave portion) provided at both end edges 6 (see FIG. 2) of the inner diameter hole 3 or a hole portion 7 (engaging concave portion) penetrating to the inner diameter hole provided at the outer peripheral portion, A built-up ridge 5 that engages with the cutout recess 4 or the hole 7 is formed on the outer peripheral surface of the shaft 1.
前記カムピース２の内径穴３の両端縁６に設けられる切
欠凹部４は第２図(A)で示すように数ケ所に形成する
か、あるいは第２図(B)で示すように連続した歯形状に
形成される。また、前記カムピース２の外周部に設けた
内径穴迄貫通する穴は第２図(C)に示すようにカム部を
除く任意の外周部に形成される。図には穴１個の場合を
示すが複数個設けてもよいのはもちろんである。なお、
カムピース２の材料は、耐摩耗性の合金やセラミックス
等の高級材が用いられ、シャフト１は溶接が可能な一般
金属材が用いられる。The notch recesses 4 provided at both end edges 6 of the inner diameter hole 3 of the cam piece 2 are formed at several places as shown in FIG. 2 (A), or have continuous tooth shapes as shown in FIG. 2 (B). Is formed. Further, a hole penetrating to the inner diameter hole provided on the outer peripheral portion of the cam piece 2 is formed on an arbitrary outer peripheral portion excluding the cam portion as shown in FIG. 2 (C). The drawing shows the case of one hole, but it is needless to say that a plurality of holes may be provided. In addition,
The cam piece 2 is made of a high-grade material such as wear-resistant alloy or ceramics, and the shaft 1 is made of a weldable general metal material.
本考案は上記の通りの構造であるから、第３図で示すよ
うに肉盛り隆起部５が形成されていない状態のシャフト
１の外周面にカムピース２の内径穴３を嵌合し、カムの
設定位置において、切欠凹部４又は貫通穴７に係合する
肉盛り隆起部５をシャフト１の外周面に形成する。この
肉盛り隆起部５は、切欠凹部４又は貫通穴７の近傍のシ
ャフト１の一部をアーク，レーザ，プラズマ，電子ビー
ム等により溶かして切欠凹部４又は貫通穴７に溶けた金
属を流し込む。その他の方法としては溶接棒をアークで
溶かしてシャフト１に溶接し、切欠凹部４又は貫通穴７
に流し込んでもよい。Since the present invention has the above-described structure, as shown in FIG. 3, the inner diameter hole 3 of the cam piece 2 is fitted to the outer peripheral surface of the shaft 1 in which the build-up ridge 5 is not formed, and At the set position, a build-up ridge 5 that engages with the cutout recess 4 or the through hole 7 is formed on the outer peripheral surface of the shaft 1. The build-up ridge 5 is formed by melting a part of the shaft 1 near the cutout recess 4 or the through hole 7 with an arc, a laser, a plasma, an electron beam or the like, and pouring the melted metal into the cutout recess 4 or the through hole 7. As another method, the welding rod is melted by an arc and welded to the shaft 1, and the notch recess 4 or the through hole 7 is formed.
May be poured into.
この切欠凹部４又は貫通穴７に係合するシャフト１側の
肉盛り隆起部５によってシャフト１の外周面に嵌合され
たカムピース２は定位置で回転方向並びに軸線方向の何
れも移動が拘束され別個のシャフト１とカムピース２は
確実に一体化したカムシャフトが得られる。The cam piece 2 fitted to the outer peripheral surface of the shaft 1 is restrained from moving in both the rotational direction and the axial direction at a fixed position by the build-up ridge 5 on the shaft 1 side that engages with the cutout recess 4 or the through hole 7. The separate shaft 1 and cam piece 2 are reliably integrated into a camshaft.
＜考案の効果＞ 以上のように本考案によると、カムピースの内径穴の両
端縁に設けた切欠凹部又は外周部に設けた貫通穴に、シ
ャフトに溶接等によって形成した肉盛り隆起部を係合さ
せた組立結合構成によるものであるから、カムピースは
非溶接材あるいは難溶接材を適用することができ、シャ
フトはカムピースの材質に左右されることがなく、溶接
可能な一般材を用いることができる。従って、カムピー
スのみ耐久性の高い高級材を用いることによりコストの
低減が得られる。<Advantages of the Invention> As described above, according to the present invention, the build-up ridge formed by welding or the like is engaged with the cutout recess provided in both end edges of the inner diameter hole of the cam piece or the through hole provided in the outer peripheral portion. Due to the assembled and assembled structure, the cam piece can be made of non-welding material or hard-to-weld material, and the shaft can be made of weldable general material without being influenced by the material of the cam piece. . Therefore, the cost can be reduced by using only the cam piece made of high-grade material having high durability.
第１図は本考案の要部断面図、第２図はカムピースの斜
視図、第３図は組付け方法を説明する断面図である。 １……シャフト、２……カムピース、３……内径穴、４
……切欠凹部、５……肉盛り隆起部、６……両端縁、７
……貫通穴。FIG. 1 is a sectional view of an essential part of the present invention, FIG. 2 is a perspective view of a cam piece, and FIG. 3 is a sectional view for explaining an assembling method. 1 ... Shaft, 2 ... Cam piece, 3 ... Inner diameter hole, 4
...... Notched recesses, 5 ...... Rising ridges, 6 ...... End edges, 7
…… Through hole.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実願 昭46−51146号（実開 昭48− 9804号）の願書に添付した明細書及び図面 の内容を撮影したマイクロフィルム（Ｊ Ｐ，Ｕ) 実願 昭55−123387号（実開 昭57− 44909号）の願書に添付した明細書及び図 面の内容を撮影したマイクロフィルム（Ｊ Ｐ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Microfilm (JP, U) of the contents of the specifications and drawings attached to the application for Japanese Patent Application No. Sho 46-51146 (No. Sho 48-9804). A microfilm (JP, U) of the detailed description and drawings attached to the application of Japanese Utility Model Application No. 55-123387 (Japanese Utility Model Application No. 57-44909)
Claims (1)
カムシャフトの外周に嵌合する内径穴を持った硬質合
金，セラミックス等のカムピースとからなり、前記カム
ピースの内径穴側に係合凹部を設け、前記カムシャフト
に嵌合したカムピースの定位置において、前記係合凹部
と対応するカムシャフトの外周面に前記係合凹部と係合
してカムピースを相対回転並びに軸方向の移動を規制す
る溶接肉盛り隆起部を形成したことを特徴とするカムシ
ャフト。1. A camshaft made of a weldable metal material, and a campiece made of hard alloy, ceramics or the like having an inner diameter hole that fits on the outer circumference of the camshaft. Is provided, and at a fixed position of the cam piece fitted to the cam shaft, the cam piece is engaged with the engaging recess on the outer peripheral surface of the cam shaft corresponding to the engaging recess to restrict relative rotation and axial movement of the cam piece. A camshaft having a welded bump formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986116728U JPH0631122Y2 (en) | 1986-07-31 | 1986-07-31 | Camsyaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986116728U JPH0631122Y2 (en) | 1986-07-31 | 1986-07-31 | Camsyaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6324304U JPS6324304U (en) | 1988-02-17 |
| JPH0631122Y2 true JPH0631122Y2 (en) | 1994-08-22 |
Family
ID=31001591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986116728U Expired - Lifetime JPH0631122Y2 (en) | 1986-07-31 | 1986-07-31 | Camsyaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0631122Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0727062Y2 (en) * | 1988-11-10 | 1995-06-21 | 新キャタピラー三菱株式会社 | Workpiece fixture fluid supply structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS489804U (en) * | 1971-06-17 | 1973-02-03 | ||
| JPS5941281Y2 (en) * | 1980-08-29 | 1984-11-28 | いすゞ自動車株式会社 | camshaft |
-
1986
- 1986-07-31 JP JP1986116728U patent/JPH0631122Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6324304U (en) | 1988-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3117907B2 (en) | Bicycle crank and manufacturing method thereof | |
| JP2000088099A (en) | Stationary sleeve and control shaft fitted with it | |
| JPH0631122Y2 (en) | Camsyaft | |
| JP2000213551A (en) | End piece pressure contact type hollow camshaft | |
| JPS6213284A (en) | Friction welding method, manufacture of axle assembly and metallic part | |
| CA1227672A (en) | Method of welding aluminum driveshaft components | |
| JP3059374B2 (en) | Manufacturing method of ball joint | |
| JPH11141398A (en) | Piston for internal combustion engine and its manufacture | |
| JP2965879B2 (en) | Cast steel cross joint hardware | |
| DE602004011854T2 (en) | bicycle rim | |
| JPS6229606Y2 (en) | ||
| JPS62255267A (en) | Steering wheel | |
| JP2661365B2 (en) | Connection structure using spacers | |
| JPS6229609Y2 (en) | ||
| JPS62254988A (en) | Turbine diaphragm welding method | |
| JPH0749072Y2 (en) | Slip spline | |
| JPH08226475A (en) | Manufacture of ventilation type brake rotor disk | |
| JP2001132414A (en) | Rocker arm made of sheet metal | |
| JPS6366706B2 (en) | ||
| JPH0613907Y2 (en) | Cutter bit | |
| JPH0454059Y2 (en) | ||
| JPS6287603A (en) | Tappet valve mechanism with roller | |
| JPS63109981A (en) | Pivotal attaching and incorporating method of tool | |
| JPH0335866Y2 (en) | ||
| JP2586494Y2 (en) | Plain bearing |