JPH0143850B2 - - Google Patents
Info
- Publication number
- JPH0143850B2 JPH0143850B2 JP10997182A JP10997182A JPH0143850B2 JP H0143850 B2 JPH0143850 B2 JP H0143850B2 JP 10997182 A JP10997182 A JP 10997182A JP 10997182 A JP10997182 A JP 10997182A JP H0143850 B2 JPH0143850 B2 JP H0143850B2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- ventilation hole
- air intake
- reduced
- air
- 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
Links
- 238000009423 ventilation Methods 0.000 claims description 20
- 230000000694 effects Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D65/84—Features relating to cooling for disc brakes
- F16D65/847—Features relating to cooling for disc brakes with open cooling system, e.g. cooled by air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
【発明の詳細な説明】
本発明は、熱放散性能の昂上を計つたベンチレ
ーテツドロータに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ventilated rotor with improved heat dissipation performance.
デイスクブレーキに使用されている従来のベン
チレーテツドロータは、車両制動時の摩擦熱によ
る温度上昇に起因して、パツドの耐摩耗性が劣化
したり、車軸の軸受温度が異常に高温となるのを
避けるために、ロータ内部に放射状の通気孔を設
けたものであり、特に大型車用のデイスクブレー
キに採用されている。而して、デイスクブレーキ
は車両への取付状態において開放性に欠けるため
に、通気孔への空気の取り入れ量は必ずしも充分
ではなく、車両の大型化、高速化に伴つて更に熱
放散性能の昂上が望まれている。 Conventional ventilated rotors used in disc brakes suffer from deterioration of pad wear resistance and abnormally high axle bearing temperatures due to temperature rise due to frictional heat during vehicle braking. In order to avoid this, radial ventilation holes are provided inside the rotor, and it is especially used in disc brakes for large vehicles. However, since disc brakes lack openness when installed on a vehicle, the amount of air taken into the ventilation holes is not necessarily sufficient, and as vehicles become larger and faster, heat dissipation performance is further improved. The top is desired.
本発明は上記の如き事情に鑑みてなされたもの
であり、ベンチレーテツドロータにおいて、通気
孔へ、空気を積極的に取り入れ、かつ熱発生部に
おいて乱流による熱伝達を併起させて熱放散性能
の昂上を計ることを目的としている。 The present invention has been made in view of the above-mentioned circumstances, and it is a ventilated rotor that actively takes in air into the ventilation holes and simultaneously causes heat transfer by turbulence in the heat generating part to dissipate heat. The purpose is to measure performance enhancement.
本発明に係るベンチレーテツドロータを図面に
基いて説明する。 A ventilated rotor according to the present invention will be explained based on the drawings.
第１図は、ロータ上半部の断面端面を示す。１
はロータ本体であり、２はロータのフランジ部で
あり、車両の回転部たる車軸等への取付孔２ａを
設けてある。ロータの摺動摩擦部３の内部には横
断面形状が円形をなす複数個の通気孔４を放射状
に設けてある。通気孔４にはベンチユリー効果を
与えるために中間部に縮径部４ａを設けてある。
通気孔４は、その下端に第１空気取入口４ｂ、そ
の上方位置に第２空気取入口４ｃを設け、かつロ
ータ本体１の正回転により空気を効果的に第２空
気取入口４ｃに導入するためにその後縁にフイン
３ａを設けてある。第３空気取入口４ｄは通気孔
の縮径部４ａの両側に対向して設けられ、ベンチ
ユリー効果により通気孔４に積極的に外部空気を
吸引するようにしてある。通気孔４の先端寄りに
はタービユレンスプロモータ（乱流促進体）５を
固定してある。なお縮径部４ａから先方への拡大
角度は５〜６度が好ましく、かつこの面は粗い方
が乱流形成上よい。タービユレンスプロモータ
は、第２図イ，ロに、その一例の構造を示すよう
に、通気孔４内壁に当接して固定作用をなす４個
の係止片部５ａ，５a′，５a″，５ａと、通気孔
４の軸線に対して斜行して通気孔４先端方向に延
在して乱流を発生させる４個の羽根５ｂ，５b′，
５b″，５ｂとで形成されている。更にその形成
過程を詳述する。第３図イに示すように係止片部
５ａを形成するための突片５0aと突片５0aの根元
より通気孔４の内壁に添う曲線部を有する羽根部
５0bとよりなる薄金属板５0を点線で示す個所に
てそれぞれ反対方向に折り曲げて第３図ロに示す
如く円弧状の係止片部５ａと通気孔４の軸線に斜
行する羽根５ｂとを形成する。同様にして係止片
部５a′と羽根５b′、係止片部５a″と羽根５b″、係
止片部５ａと羽根５ｂを形成して、それぞれ
の係止片部５ａ，５a′，５a″，５ａの反対側の
端面を突き合せて溶接して一体としてタービユレ
ンスプロモータ５を形成する。又第４図イに示す
如く、両側に係止片部５ａ，５a′を形成する突片
５′0a，５′0a′と、突片５′0a，５′0a′の根元より
通気孔４の内壁に添う曲線部を有する羽根部５′
0b，５′0b′とよりなる薄金属板５′0を中央の一点
鎖線個所にて直角に折り曲げ、而る後に円弧状の
係止片部５ａと係止片部５a′とを互に反対方向に
折り曲げ、更に通気孔４の軸線に斜行する羽根５
ｂ，５b′を形成し、同様にして係止片部５a″，５
ａと羽根５b″，５ｂとを形成した他の部材と
を一点鎖線折り曲げ部を突合せて溶接して一体と
してもよい。 FIG. 1 shows a cross-sectional end face of the upper half of the rotor. 1
2 is a rotor body, and 2 is a flange portion of the rotor, which is provided with a mounting hole 2a for attaching to an axle or the like, which is a rotating part of a vehicle. Inside the sliding friction part 3 of the rotor, a plurality of ventilation holes 4 having a circular cross-sectional shape are radially provided. The ventilation hole 4 is provided with a reduced diameter portion 4a in the middle to provide a ventilate effect.
The ventilation hole 4 has a first air intake port 4b at its lower end and a second air intake port 4c at an upper position, and effectively introduces air into the second air intake port 4c by forward rotation of the rotor body 1. For this purpose, a fin 3a is provided on the rear edge. The third air intake port 4d is provided on both sides of the reduced diameter portion 4a of the vent hole, and is configured to actively draw outside air into the vent hole 4 due to the ventilate effect. A turbulence promoter (turbulence promoter) 5 is fixed near the tip of the ventilation hole 4. Note that the expansion angle from the diameter-reduced portion 4a toward the front is preferably 5 to 6 degrees, and the rougher this surface is, the better in terms of turbulent flow formation. As shown in FIGS. 2A and 2B, an example of the structure of the turbulence promoter is shown in FIG. 5a, and four blades 5b, 5b', which extend toward the tip of the ventilation hole 4 obliquely to the axis of the ventilation hole 4 and generate turbulent flow.
5b ' ', 5b.The formation process will be explained in detail.As shown in FIG. A thin metal plate 50 consisting of a blade portion 50b having a curved portion that follows the inner wall of the ventilation hole 4 from its root is bent in opposite directions at the points indicated by dotted lines to form an arc-shaped engagement as shown in FIG. 3B. A locking piece 5a and a blade 5b oblique to the axis of the ventilation hole 4 are formed. Similarly, a locking piece 5a' and a blade 5b', a locking piece 5a'' and a blade 5b'', and a locking piece 5b are formed. 5a and blades 5b are formed, and the opposite end surfaces of the locking pieces 5a, 5a', 5a'', 5a are brought together and welded to form the turbulence promoter 5 as one body. Further, as shown in FIG. 4A, the protrusions 5' 0 a, 5' 0 a' forming the locking pieces 5 a, 5 a' on both sides, and the roots of the protrusions 5' 0 a, 5' 0 a' The blade portion 5' has a curved portion that follows the inner wall of the ventilation hole 4.
The thin metal plate 5' 0 consisting of 0 b, 5' 0 b ' is bent at right angles at the dot-dash line in the center, and then the arc-shaped locking piece 5a and the locking piece 5a' are aligned. The blade 5 is bent in the opposite direction to the direction shown in FIG.
Similarly, locking pieces 5a'' and 5b are formed.
a and another member forming the blades 5b'', 5b may be integrated by welding the dotted line bent portions against each other.
なお、係止片部５ａ，５a′，５a″５ａの通気
孔４内壁への固定は、接着剤にて固着させてもよ
く、又通気孔４内壁に突起を設けて、タービユレ
ンスプロモータ５を挿入後に若干回動させて係止
片部５ａ，５a′，５a″５ａの端面を該突起に係
合させて脱出止めとしてもよい。第５図には、タ
ービユレンスプロモータとして別の構造例を示
す。このタービユレンスプロモータ５′は、比較
的厚板よりなり十字形断面をなす係止片部５a′と
その先端につる巻形の羽根５′ｂを固定してある。
かかる比較的厚板にて係止片部５′ａを形成した
場合には通気孔４内壁への固定は圧入にてなされ
得る。 The locking pieces 5a, 5a', 5a'' 5a may be fixed to the inner wall of the vent hole 4 with adhesive, or protrusions may be provided on the inner wall of the vent hole 4 to secure the turbulence promoter 5. After insertion, the end surfaces of the locking pieces 5a, 5a', 5a'' 5a may be engaged with the protrusions to prevent them from coming out by rotating them slightly. FIG. 5 shows another structural example of a turbulence promoter. This turbulence promoter 5' is made of a relatively thick plate and has a locking piece 5a' having a cross-shaped cross section, and a spiral blade 5'b fixed to the tip of the locking piece 5a'.
When the locking piece 5'a is formed of such a relatively thick plate, it can be fixed to the inner wall of the vent hole 4 by press fitting.
いずれにせよ、タービユレンスプロモータは下
流側に乱流を生じる羽根状体であればよい。 In any case, the turbulence promoter may be any blade-like body that generates turbulent flow on the downstream side.
本発明に係るベンチレーテツドロータは、上記
の如くに構成されているので、ロータ本体１が回
転すると、通気孔４には、第１空気取入口4bよ
りの空気、フイン３ａに案内されてその前方に設
けられた第２空気取入口４ｃよりの空気、及び前
記の空気が縮径部４ａを通過する際に生じるベン
チユリー効果によつて第３空気取入口４ｄよりの
補給空気が通気孔４に導入され、タービユレンス
プロモータ５を通過して乱流を生じる。制動時に
図外のパツドが摺接してロータの摺動摩擦部３，
３に生じた熱は、空気の流れが層流の際に取り去
る熱量よりもうず温度伝導率に相当する分だけ余
分に熱を取り去り、かつ縮径部４ａのベンチユリ
ー効果による増加空気量と相俟つて熱放散性能が
昂上する。 Since the ventilated rotor according to the present invention is constructed as described above, when the rotor main body 1 rotates, air from the first air intake port 4b is introduced into the ventilation hole 4 and is guided to the fin 3a. Air from the second air intake port 4c provided at the front and supplementary air from the third air intake port 4d enter the vent hole 4 due to the ventilating effect that occurs when the air passes through the reduced diameter portion 4a. is introduced, passes through the turbulence promoter 5, and generates turbulence. During braking, a pad (not shown) comes into sliding contact with the rotor's sliding friction portion 3,
The heat generated in step 3 removes more heat than the amount of heat removed when the air flow is a laminar flow by an amount corresponding to the temperature conductivity of the condensation, and together with the increased amount of air due to the Ventury effect of the reduced diameter portion 4a. This improves heat dissipation performance.
本発明に係るベンチレーテツドロータは、ロー
タの内部に放射状の通気孔を設け、該通気孔の側
壁に空気取入口を具備した縮径部を形成し、縮径
部の先端側に該通気孔の軸線方向に斜行して延在
する翼を備えたタービユレンスプロモータを固定
した。従つて、従来のベンチレーテツドロータに
比し、多量の空気を通気孔に取入れることがで
き、かつ乱流効果による熱伝導率の増加によつて
熱放散性能の勝れたベンチレーテツドロータを提
供できた。 The ventilated rotor according to the present invention has a radial ventilation hole provided inside the rotor, a reduced diameter part provided with an air intake port on the side wall of the ventilation hole, and the ventilation hole at the tip side of the reduced diameter part. A turbulence promoter with wings extending obliquely in the axial direction of the motor was fixed. Therefore, compared to conventional ventilated rotors, a ventilated rotor that can take in a large amount of air into the ventilation holes and has superior heat dissipation performance due to increased thermal conductivity due to the turbulent flow effect. We were able to provide
第１図は、本発明に係るベンチレーテツドロー
タの上半部の断面端面図、第２図イは本発明に係
るタービユレンスプロモータの一例を示す正面
図、第２図ロは同側面図、第３図イ、ロ及び第４
図イ，ロはそれぞれタービユレンスプロモータの
形成過程の説明図、第５図はタービユレンスプロ
モータの他の例を示す側面図である。
１：ロータ本体、３：（ロータの）摺動摩擦部、
３ａ：フイン、４：通気孔、４ａ：縮径部、４
ｂ：第１空気取入口、４ｃ：第２空気取入口、４
ｄ：第３空気取入口、５，５′：タービユレンス
プロモータ、５ａ，５a′，５a″５ａ：係止片
部、５ｂ，５b′，５b″５ｂ：羽根、５0：薄金
属板、５0a：突片、５0b：羽根部。
FIG. 1 is a cross-sectional end view of the upper half of the ventilated rotor according to the present invention, FIG. 2A is a front view showing an example of the turbulence promoter according to the present invention, and FIG. 2B is a side view of the same. , Figure 3 A, B and 4
Figures A and B are explanatory diagrams of the formation process of a turbulence promoter, respectively, and FIG. 5 is a side view showing another example of a turbulence promoter. 1: Rotor body, 3: Sliding friction part (of the rotor),
3a: Fin, 4: Vent hole, 4a: Reduced diameter part, 4
b: first air intake, 4c: second air intake, 4
d: Third air intake port, 5, 5': Turbulence promoter, 5a, 5a', 5a''5a: Locking piece, 5b, 5b', 5b''5b: Blade, 5 0 : Thin metal plate, 5 0 a: Projection piece, 5 0 b: Wing part.
Claims (1)
気孔の側壁に空気取入口を具備した縮径部を形成
し、縮径部の先端側に該通気孔の軸線方向に斜行
して延在する翼を備えたタービユレンスプロモー
タを固定したことを特徴とするベンチレーテツド
ロータ。1 A radial ventilation hole is provided inside the rotor, a reduced diameter part with an air intake is formed on the side wall of the ventilation hole, and a diameter-reduced part with an air intake port is formed on the side wall of the reduced-diameter part, and a diameter-reduced part is provided extending diagonally in the axial direction of the ventilation hole on the tip side of the reduced-diameter part. A ventilated rotor characterized in that a turbulence promoter with existing wings is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10997182A JPS591825A (en) | 1982-06-28 | 1982-06-28 | Ventilated rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10997182A JPS591825A (en) | 1982-06-28 | 1982-06-28 | Ventilated rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS591825A JPS591825A (en) | 1984-01-07 |
| JPH0143850B2 true JPH0143850B2 (en) | 1989-09-22 |
Family
ID=14523793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10997182A Granted JPS591825A (en) | 1982-06-28 | 1982-06-28 | Ventilated rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS591825A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3539640C1 (en) | 1985-11-08 | 1986-10-09 | Bayerische Motoren Werke AG, 8000 München | Brake disc for a disc brake of a motor vehicle |
| DE3908655C2 (en) * | 1989-03-16 | 1995-09-28 | Bayerische Motoren Werke Ag | Vehicle brake with a brake disc |
| GB2307959B (en) * | 1995-12-05 | 1999-11-10 | T & N Technology Ltd | Disc brake rotors |
| DE19546732A1 (en) * | 1995-12-14 | 1996-11-28 | Daimler Benz Ag | Disc brake ventilated disc with radially inner hub part |
| GB2314387B (en) * | 1996-06-19 | 2000-02-09 | T & N Technology Ltd | Disc brake rotor |
| CZ305948B6 (en) * | 2007-08-03 | 2016-05-18 | Ĺ koda Auto a. s. | Device to cool brake disk |
| CN105114496A (en) * | 2015-09-02 | 2015-12-02 | 启东市宏威针织有限公司 | Ventilated disc |
-
1982
- 1982-06-28 JP JP10997182A patent/JPS591825A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS591825A (en) | 1984-01-07 |
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