JPH09136502A - Automobile wheel mounting structure body - Google Patents
Automobile wheel mounting structure bodyInfo
- Publication number
- JPH09136502A JPH09136502A JP31758295A JP31758295A JPH09136502A JP H09136502 A JPH09136502 A JP H09136502A JP 31758295 A JP31758295 A JP 31758295A JP 31758295 A JP31758295 A JP 31758295A JP H09136502 A JPH09136502 A JP H09136502A
- Authority
- JP
- Japan
- Prior art keywords
- iron
- cast
- mounting structure
- wheel mounting
- brake drum
- 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
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 12
- 239000010439 graphite Substances 0.000 claims abstract description 12
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 10
- 239000002184 metal Substances 0.000 abstract description 10
- 238000005266 casting Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 2
- 239000011777 magnesium Substances 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 229920006328 Styrofoam Polymers 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000008261 styrofoam Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鋳鉄製の自動車用
車輪の取付構造体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile wheel mounting structure made of cast iron.
【０００２】[0002]
【従来の技術】従来、例えば、図４に示されるような鋳
鉄製の自動車用車輪の取付構造体（以下、車輪取付構造
体という）ａは、駆動軸の取付けられるハブ部ｈと、ブ
レーキシューｂの当接するブレーキドラム部ｄとから構
成されている。そして、この取付構造体ａには、タイヤ
ｔを装着する鋼製のホイールｗがボルト・ナットにより
取付けられている。2. Description of the Related Art Conventionally, for example, as shown in FIG. 4, an automobile wheel mounting structure (hereinafter referred to as a wheel mounting structure) a made of cast iron has a hub portion h to which a drive shaft is mounted and a brake shoe. It is composed of a brake drum portion d with which b comes into contact. A steel wheel w on which the tire t is mounted is attached to the attachment structure a by bolts and nuts.
【０００３】取付構造体ａのうちのハブ部ｈは、球状黒
鉛鋳鉄（以下、ＦＣＤ鋳鉄という）から作られ、他方、
ブレーキドラム部ｄは、片状黒鉛鋳鉄（以下、ＦＣ鋳鉄
という）から作られ、両者はボルト・ナットにより組立
てられて一体化されている。The hub portion h of the mounting structure a is made of spheroidal graphite cast iron (hereinafter referred to as FCD cast iron), while
The brake drum part d is made of flake graphite cast iron (hereinafter referred to as FC cast iron), and both are assembled and integrated by bolts and nuts.
【０００４】したがって、取付構造体ａのうちのハブ部
ｈは、所定の強度を有することができ、また、ブレーキ
ドラム部ｄは、所定の熱伝導性及び耐摩耗性を有するこ
とができる。Therefore, the hub portion h of the mounting structure a can have a predetermined strength, and the brake drum portion d can have a predetermined thermal conductivity and wear resistance.
【０００５】[0005]
【発明が解決しようとする課題】ところで、従来の車輪
取付構造体において、ハブ部に球状黒鉛組成の性質を持
たせ、ブレーキドラム部に片状黒鉛組成の性質を持たせ
ようとするときは、それぞれ個別に鋳造しなければなら
ないという面倒があるとともに、組立工程を必要とする
欠点があった。By the way, in the conventional wheel mounting structure, when it is desired to give the hub portion the property of the spherical graphite composition and the brake drum portion the property of the flake graphite composition, Each of them has the disadvantage of having to be cast individually, and has the drawback of requiring an assembly process.
【０００６】そこで、本発明は、上記欠点を解決するた
めになされたものであって、その目的は、球状黒鉛組成
を有するハブ部と片状黒鉛組成を有するブレーキドラム
部とを一体化した鋳鉄製の車輪取付構造体を提供するこ
とにある。Therefore, the present invention has been made to solve the above-mentioned drawbacks, and an object thereof is cast iron in which a hub portion having a spherical graphite composition and a brake drum portion having a flake graphite composition are integrated. To provide a wheel mounting structure made of metal.
【０００７】[0007]
【課題を解決するための手段】本発明に係る車輪取付構
造体は、上記目的を達成するために、ハブ部が球状黒鉛
鋳鉄にブレーキドラム部が片状黒鉛鋳鉄に一体的に鋳造
されていることを特徴としている。In order to achieve the above object, in the wheel mounting structure according to the present invention, the hub portion is integrally cast on the spheroidal graphite cast iron and the brake drum portion is cast on the flake graphite cast iron. It is characterized by that.
【０００８】[0008]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図１は、一実施の形態に係る車輪
取付構造体Ａの断面図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of a wheel mounting structure A according to an embodiment.
【０００９】車輪取付構造体Ａは、駆動軸の取付けられ
るハブ部ＨとブレーキシューＢの当接するブレーキドラ
ム部Ｄとを有し、これらは一体的に構成されている。そ
して、この車輪取付構造体Ａには、鋼製のホイールＷが
ボルト・ナットを介して取付けられ、そのホイールＷに
タイヤＴが装着されるように構成されている。The wheel mounting structure A has a hub portion H on which a drive shaft is mounted and a brake drum portion D on which a brake shoe B abuts, which are integrally formed. Then, a steel wheel W is attached to the wheel attachment structure A via bolts and nuts, and a tire T is attached to the wheel W.
【００１０】車輪取付構造体Ａのうちハブ部Ｈに当たる
部分はＦＣＤ鋳鉄で形成され、他方、ブレーキドラムＤ
に当たる部分はＦＣ鋳鉄から形成されている。The portion of the wheel mounting structure A that contacts the hub H is made of FCD cast iron, while the brake drum D is used.
The part corresponding to is formed of FC cast iron.
【００１１】したがって、車輪取付構造体Ａのうちのハ
ブ部Ｈは所定の強度を有することができ、また、ブレー
キドラム部Ｄは所定の熱伝導性及び耐摩耗性を有するこ
とができる。Therefore, the hub portion H of the wheel mounting structure A can have a predetermined strength, and the brake drum portion D can have a predetermined heat conductivity and wear resistance.
【００１２】次に、図２及び図３を用いて、上述の車輪
取付構造体Ａの製造方法について説明する。Next, a method of manufacturing the above wheel mounting structure A will be described with reference to FIGS. 2 and 3.
【００１３】図２は、上述の車輪取付構造体Ａを鋳造す
る際に用いられる鋳型１の断面図であって、上枠２ａと
下枠２ｂとを積層して構成されている。FIG. 2 is a cross-sectional view of the mold 1 used when casting the above-mentioned wheel mounting structure A, which is constructed by stacking an upper frame 2a and a lower frame 2b.
【００１４】上枠２ａ及び下枠２ｂ内には、鋳物砂３が
それぞれ充填されているとともに、その中に、車輪取付
構造体Ａに対応したキャビティ４が形成されている。そ
して、このキャビティ４には、湯道３′が連なってい
て、この湯道５を介して、ＦＣ鋳鉄用の溶湯を注湯する
ことができるように構成されている。The upper frame 2a and the lower frame 2b are respectively filled with foundry sand 3, and a cavity 4 corresponding to the wheel mounting structure A is formed therein. A runner 3 ′ is connected to the cavity 4 so that molten metal for FC cast iron can be poured through the runner 5.
【００１５】キャビティ４のうち、ブレーキドラム部Ｄ
に対応する部分４ａは、空間に保たれているが、ハブ部
Ｈに対応する部分４ｂには、図３に示されるようなリン
グ状の球状化促進物５が挿入される。Of the cavity 4, the brake drum portion D
The portion 4a corresponding to is retained in the space, but the ring-shaped spheroidizing accelerator 5 as shown in FIG. 3 is inserted into the portion 4b corresponding to the hub portion H.
【００１６】球状化促進物５は、溶湯の温度で消失す
る、周知の消失模型で用いられる発泡スチロール５ａ
に、球状化促進物質として知られている粉末状のマグネ
シウム（Ｍｇ）（その合金も含む）５ｂが充填されてい
る。The spheroidizing accelerator 5 disappears at the temperature of the molten metal, and is a styrofoam 5a used in a known disappearance model.
Further, powdery magnesium (Mg) (including its alloy) 5b known as a spheroidization promoting substance is filled therein.
【００１７】マグネシウム５ｂは、ＦＣ鋳鉄の溶湯をＦ
ＣＤ鋳鉄に生成するに必要な周知の量、例えばその添加
量が０．０４％（容量比。以下、同じ）となるように、
予め発泡スチロール５ａ内に植設されている。また、Ｍ
ｇ以外に、黒鉛球状化物質として知られているセリウム
（Ｃｅ）を０．０２％、あるいはカルシウム（Ｃａ）を
０．０２％用いることもできる。Magnesium 5b is a molten FC cast iron F
A known amount necessary for producing CD cast iron, for example, the addition amount thereof is 0.04% (volume ratio, hereinafter the same),
It is planted in the styrofoam 5a in advance. Also, M
Other than g, 0.02% of cerium (Ce) or 0.02% of calcium (Ca), which is known as a graphite spheroidizing substance, can be used.
【００１８】上述の構成からなる鋳型１内に、ＦＣ鋳鉄
の溶湯を湯道３′から注湯すると、ブレーキドラム部Ｄ
に当たるキャビティ４の部分４ａは、その溶湯の性質の
ＦＣ鋳鉄に形成され、他方、ハブ部Ｈに当たるキャビィ
ティ４の部分４ｂは、球状化促進物５の作用によりＦＣ
Ｄ鋳鉄に形成される。When the molten metal of FC cast iron is poured into the mold 1 having the above-mentioned structure from the runner 3 ', the brake drum portion D is formed.
The portion 4a of the cavity 4 which hits is formed of FC cast iron having the property of the molten metal, while the portion 4b of the cavity 4 which hits the hub portion H is FC by the action of the spheroidizing accelerator 5.
Formed in D cast iron.
【００１９】したがって、上記鋳型１から得られる鋳鉄
製品を機械加工して得られる車輪取付構造体Ａは、ブレ
ーキドラム部Ｄに当る部分がＦＣ鋳鉄に形成され、ま
た、ハブ部Ｈに当る部分がＦＣＤ鋳鉄に形成される。Therefore, in the wheel mounting structure A obtained by machining the cast iron product obtained from the mold 1, the portion corresponding to the brake drum portion D is formed of FC cast iron, and the portion corresponding to the hub portion H is formed. Formed in FCD cast iron.
【００２０】なお、球状化促進物５は、溶湯の温度で消
失する発泡スチロール５ａを用いるようにしたが、これ
を周知のインモールド法のように、ハブ部Ｈに当るキャ
ビティ４の部分４ｂ内にマグネシウム５ｂを予め配置し
て注湯するようにしてもよい。As the spheroidizing accelerator 5, styrofoam 5a, which disappears at the temperature of the molten metal, is used. However, as in the well-known in-mold method, this is placed in the portion 4b of the cavity 4 that contacts the hub H. You may make it arrange | position the magnesium 5b beforehand and pour molten metal.
【００２１】しかし、発泡スチロール５ａのような消失
する材料を用いると、確実に、かつ均一にＦＣＤ鋳鉄化
することができる。However, when a disappearing material such as expanded polystyrene 5a is used, FCD cast iron can be reliably and uniformly formed.
【００２２】また、溶湯の温度で消失する材料として発
泡ースチロール５ａを用いたが、溶湯の温度で消失する
ものであれば、他の材質を選択することができる。Although the polystyrene foam 5a is used as the material that disappears at the temperature of the molten metal, other materials can be selected as long as they disappear at the temperature of the molten metal.
【００２３】[0023]
【発明の効果】本発明に係る車輪取付構造体は、ハブ部
がＦＣＤ鋳鉄に、ブレーキドラム部がＦＣ鋳鉄に一体的
に鋳造されるので、組立工程を経ることなく作ることが
できる。The wheel mounting structure according to the present invention can be manufactured without undergoing an assembling process because the hub portion is integrally cast with FCD cast iron and the brake drum portion is cast with FC cast iron.
【図１】本発明の一実施の形態に係る車輪取付構造体の
断面図である。FIG. 1 is a cross-sectional view of a wheel mounting structure according to an embodiment of the present invention.
【図２】鋳型の断面図である。FIG. 2 is a cross-sectional view of a mold.
【図３】球状化促進物の斜視図である。FIG. 3 is a perspective view of a spheroidizing accelerator.
【図４】従来の自動車の車輪取付構造体の断面図であ
る。FIG. 4 is a cross-sectional view of a conventional vehicle wheel mounting structure.
Ａ 車輪取付構造体 Ｈ ハブ部 Ｄ ブレーキドラム部 １ 鋳型 ４ キャビティ ５ 球状化促進物 ５ａ 発泡スチロール ５ｂ マグネシウム（球状化促進物質） A Wheel mounting structure H Hub part D Brake drum part 1 Mold 4 Cavity 5 Spheroidizing agent 5a Styrofoam 5b Magnesium (Spheroidizing agent)
Claims (1)
部が片状黒鉛鋳鉄に一体的に鋳造されていることを特徴
とする自動車用車輪の取付構造体。1. A mounting structure for an automobile wheel, wherein a hub portion is integrally cast on spheroidal graphite cast iron and a brake drum portion is cast integrally on flake graphite cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31758295A JPH09136502A (en) | 1995-11-10 | 1995-11-10 | Automobile wheel mounting structure body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31758295A JPH09136502A (en) | 1995-11-10 | 1995-11-10 | Automobile wheel mounting structure body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09136502A true JPH09136502A (en) | 1997-05-27 |
Family
ID=18089851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31758295A Pending JPH09136502A (en) | 1995-11-10 | 1995-11-10 | Automobile wheel mounting structure body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09136502A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009166536A (en) * | 2008-01-11 | 2009-07-30 | Ntn Corp | Wheel bearing device and method of casting housing for the same |
| CN103402787A (en) * | 2011-03-12 | 2013-11-20 | 通用电气公司 | Wheel rim assembly and method |
| US8726974B2 (en) | 2010-01-29 | 2014-05-20 | Caterpillar Inc. | In-situ graphite shape control for iron castings |
-
1995
- 1995-11-10 JP JP31758295A patent/JPH09136502A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009166536A (en) * | 2008-01-11 | 2009-07-30 | Ntn Corp | Wheel bearing device and method of casting housing for the same |
| US8726974B2 (en) | 2010-01-29 | 2014-05-20 | Caterpillar Inc. | In-situ graphite shape control for iron castings |
| CN103402787A (en) * | 2011-03-12 | 2013-11-20 | 通用电气公司 | Wheel rim assembly and method |
| CN103402787B (en) * | 2011-03-12 | 2016-01-20 | 通用电气公司 | Rim assemblies and method |
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