JPH04309427A - Cylindrical body and production thereof - Google Patents
Cylindrical body and production thereofInfo
- Publication number
- JPH04309427A JPH04309427A JP10197991A JP10197991A JPH04309427A JP H04309427 A JPH04309427 A JP H04309427A JP 10197991 A JP10197991 A JP 10197991A JP 10197991 A JP10197991 A JP 10197991A JP H04309427 A JPH04309427 A JP H04309427A
- Authority
- JP
- Japan
- Prior art keywords
- axial direction
- cylindrical body
- thickness
- blank material
- cylindrical
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims abstract description 28
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 239000007769 metal material Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000005242 forging Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
Landscapes
- Forging (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、板状の金属製素材から
製造される筒体とその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylindrical body manufactured from a plate-shaped metal material and a method for manufacturing the same.
【０００２】0002
【従来の技術】板状の金属製素材から筒体を製造する場
合は一般に絞り加工が行なわれる。しかし、絞り加工に
よって製造された筒体の周壁の肉厚は素材の肉厚よりも
小さなものとなる。そのため、一定以上の強度を必要と
するような筒体は鋳造や鍛造により製造されている。2. Description of the Related Art When manufacturing a cylindrical body from a plate-shaped metal material, drawing is generally performed. However, the thickness of the peripheral wall of the cylinder manufactured by drawing is smaller than the thickness of the material. Therefore, cylinders that require a certain level of strength are manufactured by casting or forging.
【０００３】例えば図９に示すプーリ１０１は、鋼板を
加工することで得られたリム部１０２と、鍛造により得
られたボス部１０３とをリングプロジェクション溶接に
より接合することで製造されている。For example, a pulley 101 shown in FIG. 9 is manufactured by joining a rim portion 102 obtained by processing a steel plate and a boss portion 103 obtained by forging by ring projection welding.
【０００４】0004
【発明が解決しようとする課題】上記プーリ１０１のボ
ス部１０３のように筒体を鍛造品とすると、切削加工や
溶接が必要なため製造コストが高く、重量も大きくなる
という問題がある。Problems to be Solved by the Invention If the cylindrical body is made of a forged product like the boss portion 103 of the pulley 101, there are problems in that cutting and welding are required, resulting in high manufacturing costs and increased weight.
【０００５】また、ボス部をリム部と一体の鋼板から絞
り加工により成形すると、切削加工や溶接が不要なため
製造コストは低く重量も小さくなるが、回転を伝達する
のに充分な強度の厚さとすることはできない。[0005] Furthermore, if the boss part is formed by drawing from a steel plate that is integrated with the rim part, the manufacturing cost is low and the weight is small because no cutting or welding is required, but it is also possible to form the boss part by drawing from a steel plate that is integrated with the rim part. It cannot be said.
【０００６】本発明は、上記従来技術の問題を解決する
ことのできる筒体とその製造方法を提供することを目的
とする。[0006] An object of the present invention is to provide a cylindrical body and a method for manufacturing the same which can solve the problems of the prior art described above.
【０００７】[0007]
【課題を解決するための手段】本発明による筒体の特徴
とするところは、金属製素材により形成されている筒体
であって、周壁の径方向厚さが素材の肉厚よりも大きく
、その周壁は軸方向に並列する複数の周溝を有し、各周
溝の軸方向に関し相対向する内面は密着している点にあ
る。[Means for Solving the Problems] The cylindrical body according to the present invention is characterized by being a cylindrical body formed of a metal material, in which the radial thickness of the peripheral wall is greater than the thickness of the material; The peripheral wall has a plurality of circumferential grooves arranged in parallel in the axial direction, and the inner surfaces of the circumferential grooves that face each other in the axial direction are in close contact with each other.
【０００８】本発明による筒体の製造方法の特徴とする
ところは、板状の金属製素材を筒形状とし、この筒形状
素材の外周に軸方向に並列する複数の周溝を設け、各周
溝の軸方向に関し相対向する内面が密着するように筒形
状素材を軸方向から圧縮し、これにより周壁の径方向厚
さが素材の肉厚よりも大きな筒体を得る点にある。The method for manufacturing a cylindrical body according to the present invention is characterized by forming a plate-shaped metal material into a cylindrical shape, and providing a plurality of circumferential grooves parallel to each other in the axial direction on the outer periphery of the cylindrical material. The cylindrical material is compressed in the axial direction so that the inner surfaces facing each other in the axial direction of the groove are in close contact with each other, thereby obtaining a cylindrical body in which the radial thickness of the peripheral wall is greater than the thickness of the material.
【０００９】[0009]
【実施例】以下、図面を参照して本発明の実施例を説明
する。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.
【００１０】図１に示すプーリ１はリム部２とボス部（
筒体）３とを備え、そのリム部２の外周に軸方向に並列
する複数の周溝４が形成され、そのボス部３の内周にス
プライン５が形成されている。そのリム部２の周溝４に
ベルトが巻き掛けられ、そのボス部３のスプライン５を
介して伝動軸が嵌合される。The pulley 1 shown in FIG. 1 has a rim portion 2 and a boss portion (
A plurality of circumferential grooves 4 are formed in parallel in the axial direction on the outer periphery of the rim portion 2, and a spline 5 is formed on the inner periphery of the boss portion 3. A belt is wound around the circumferential groove 4 of the rim portion 2, and a transmission shaft is fitted through the spline 5 of the boss portion 3.
【００１１】このプーリ１は図２に示すような１枚の円
板状の鋼板素材６から製造されている。その製造工程は
、まず絞り加工によって素材６を、図３に示すように大
径部６ａと小径部６ｂとを有する筒状とする。This pulley 1 is manufactured from a single disk-shaped steel plate material 6 as shown in FIG. In the manufacturing process, first, the material 6 is drawn into a cylindrical shape having a large diameter part 6a and a small diameter part 6b, as shown in FIG.
【００１２】次に、転造加工によって大径部６ａと小径
部６ｂとに、図４に示すように軸方向に並列する複数の
周溝４、８を設ける。この周溝４、８の転造加工は従来
公知の方法を用いることができる（例えば特公昭５６‐
５３４５３号公報参照）。また、小径部６ｂの図中右方
側の端面部はプレス加工等により除去する。Next, a plurality of circumferential grooves 4 and 8 arranged in parallel in the axial direction are provided in the large diameter portion 6a and the small diameter portion 6b by rolling, as shown in FIG. The rolling process of the circumferential grooves 4 and 8 can be performed using a conventionally known method (for example,
(See Publication No. 53453). Further, the end face portion of the small diameter portion 6b on the right side in the figure is removed by press working or the like.
【００１３】次に、小径部６ｂを軸方向から圧縮するこ
とで、小径部６ｂの各周溝８の軸方向に関し相対向する
内面を、図５に示すように近接した状態を経て、図６に
示すように密着させる。なお、互いに密着された周溝８
の内面が離反しないようにろう付けしてもよい。Next, by compressing the small diameter portion 6b from the axial direction, the inner surfaces of the circumferential grooves 8 of the small diameter portion 6b, which face each other in the axial direction, are brought into close proximity as shown in FIG. Place it in close contact as shown. Note that the circumferential grooves 8 are in close contact with each other.
It may be brazed to prevent the inner surfaces of the parts from separating.
【００１４】しかる後にボス部３の内周に前記スプライ
ン５が機械加工により形成され、ブローチ仕上げされる
。これにより、周壁９の径方向厚さＴが板状素材１の肉
厚よりも大きなボス部３が形成される。Thereafter, the spline 5 is formed on the inner periphery of the boss portion 3 by machining and broached. Thereby, a boss portion 3 is formed in which the radial thickness T of the peripheral wall 9 is larger than the wall thickness of the plate-shaped material 1.
【００１５】上記プーリ１は、１枚の鋼板素材６から得
られるものであるため、従来のように鋼板製のリム部と
鍛造製のボス部とを溶接することで得られるものに比べ
、機械加工が少なく、溶接も不要であるため製造コスト
が低く、軽量なものである。また、ボス部３の周壁９の
径方向厚さＴは板状素材１の肉厚よりも大きくなること
から、回転動力を伝達するのに充分な強度を有するもの
となる。Since the above-mentioned pulley 1 is obtained from a single steel plate material 6, it requires less mechanical processing than a pulley obtained by welding a steel plate rim portion and a forged boss portion as in the past. Since there is little machining and no welding is required, the manufacturing cost is low and it is lightweight. Further, since the radial thickness T of the peripheral wall 9 of the boss portion 3 is larger than the wall thickness of the plate-shaped material 1, it has sufficient strength to transmit rotational power.
【００１６】なお、本発明は上記実施例に限定されるも
のではない。Note that the present invention is not limited to the above embodiments.
【００１７】例えば図７に示すように、小径部６ｂに周
溝８を形成後に、その小径部６ｂの径方向外方を折り曲
げ部１０により覆い、各周溝８の軸方向に関し相対向す
る内面を密着させた後に、図８に示すように、その折り
曲げ部１０を周壁９の外周に密着させることでボス部３
を補強してもよい。For example, as shown in FIG. 7, after forming the circumferential grooves 8 in the small diameter portion 6b, the outside of the small diameter portion 6b in the radial direction is covered with a bent portion 10, and the inner surfaces of the circumferential grooves 8 facing each other in the axial direction are 8, the bent portion 10 is brought into close contact with the outer periphery of the peripheral wall 9, thereby forming the boss portion 3.
may be reinforced.
【００１８】また、上記実施例では筒体としてプーリ１
のボス部３を示したが、これに限定されず、金属製の筒
体であれば本発明を適用することができる。Further, in the above embodiment, the pulley 1 is used as the cylindrical body.
Although the boss portion 3 is shown, the present invention is not limited thereto, and the present invention can be applied to any metal cylindrical body.
【００１９】また、素材の材質は鋼に限定されず金属で
あればよい。Further, the material of the material is not limited to steel, but may be any metal.
【００２０】[0020]
【発明の効果】本発明による筒体は、板状の金属製素材
から製造され、かつ、その周壁の径方向厚さが素材の肉
厚よりも大きなものであるため、鋳造品や鍛造品に比べ
製造コストが低く軽量で、強度も劣ることのないもので
ある。[Effects of the Invention] The cylindrical body according to the present invention is manufactured from a plate-shaped metal material, and the radial thickness of the peripheral wall is larger than the wall thickness of the material, so it is suitable for casting or forging. In comparison, it is cheaper to manufacture, lighter in weight, and has no inferiority in strength.
【００２１】本発明による筒体の製造方法によれば、そ
の優れた特質を有する筒体を製造することができる。According to the method for manufacturing a cylinder according to the present invention, a cylinder having such excellent characteristics can be manufactured.
【図１】本発明の実施例に係るプーリの断面図FIG. 1 is a sectional view of a pulley according to an embodiment of the present invention.
【図２】
本発明の実施例に係る素材の正面図[Figure 2]
Front view of the material according to the embodiment of the present invention
【図３】本発明の実
施例に係る筒状素材の断面図FIG. 3 is a cross-sectional view of a cylindrical material according to an embodiment of the present invention.
【図４】本発明の実施例に
係る周溝を形成した筒状素材の断面図FIG. 4 is a cross-sectional view of a cylindrical material in which a circumferential groove is formed according to an embodiment of the present invention.
【図５】本発明の実施例に係る筒状素材の圧縮過程の説
明用断面図FIG. 5 is a sectional view for explaining the compression process of the cylindrical material according to the embodiment of the present invention.
【図６】本発明の実施例に係る筒体の断面図FIG. 6 is a sectional view of a cylinder according to an embodiment of the present invention.
【図７】本
発明の異なった実施例に係る周溝を形成した筒状素材の
断面図FIG. 7 is a cross-sectional view of a cylindrical material in which a circumferential groove is formed according to a different embodiment of the present invention.
【図８】本発明の異なった実施例に係る筒体の断面図FIG. 8 is a sectional view of a cylinder according to different embodiments of the present invention.
【
図９】従来例に係るプーリの断面図[
Fig. 9: Cross-sectional view of a pulley according to a conventional example
３ ボス部（筒体） ６ 金属製素材 ８ 周溝 3 Boss part (cylindrical body) 6 Metal material 8 Circumferential groove
Claims (2)
であって、周壁の径方向厚さが素材の肉厚よりも大きく
、その周壁は軸方向に並列する複数の周溝を有し、各周
溝の軸方向に関し相対向する内面は密着していることを
特徴とする筒体。1. A cylindrical body made of a metal material, the circumferential wall having a radial thickness greater than the thickness of the material, the circumferential wall having a plurality of circumferential grooves arranged in parallel in the axial direction, A cylindrical body characterized in that inner surfaces of each circumferential groove that face each other in the axial direction are in close contact with each other.
筒形状素材の外周に軸方向に並列する複数の周溝を設け
、各周溝の軸方向に関し相対向する内面が密着するよう
に筒形状素材を軸方向から圧縮し、これにより周壁の径
方向厚さが素材の肉厚よりも大きな筒体を得ることを特
徴とする筒体の製造方法。[Claim 2] A plate-shaped metal material is formed into a cylinder, and a plurality of circumferential grooves are provided in parallel in the axial direction on the outer periphery of the cylinder-shaped material, so that the inner surfaces of the circumferential grooves that face each other in the axial direction are in close contact with each other. A method for producing a cylindrical body, characterized in that a cylindrical material is compressed in the axial direction, thereby obtaining a cylindrical body in which the radial thickness of the peripheral wall is greater than the wall thickness of the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10197991A JPH04309427A (en) | 1991-04-06 | 1991-04-06 | Cylindrical body and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10197991A JPH04309427A (en) | 1991-04-06 | 1991-04-06 | Cylindrical body and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04309427A true JPH04309427A (en) | 1992-11-02 |
Family
ID=14314979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10197991A Pending JPH04309427A (en) | 1991-04-06 | 1991-04-06 | Cylindrical body and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04309427A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0824049A1 (en) * | 1996-08-15 | 1998-02-18 | The Gates Corporation | Spun-rolled pulley with thick hub and method of manufacturing thereof |
-
1991
- 1991-04-06 JP JP10197991A patent/JPH04309427A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0824049A1 (en) * | 1996-08-15 | 1998-02-18 | The Gates Corporation | Spun-rolled pulley with thick hub and method of manufacturing thereof |
| EP1424515A1 (en) * | 1996-08-15 | 2004-06-02 | The Gates Corporation | Spun pulley with thick hub |
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