JPH0672618B2 - Wet multi-plate clutch member - Google Patents
Wet multi-plate clutch memberInfo
- Publication number
- JPH0672618B2 JPH0672618B2 JP1080729A JP8072989A JPH0672618B2 JP H0672618 B2 JPH0672618 B2 JP H0672618B2 JP 1080729 A JP1080729 A JP 1080729A JP 8072989 A JP8072989 A JP 8072989A JP H0672618 B2 JPH0672618 B2 JP H0672618B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- annular
- clutch member
- wet multi
- plate clutch
- 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 - Fee Related
Links
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 10
- 239000010962 carbon steel Substances 0.000 claims description 9
- 239000002783 friction material Substances 0.000 claims description 9
- 238000005261 decarburization Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000005461 lubrication Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 244000226021 Anacardium occidentale Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000020226 cashew nut Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Mechanical Operated Clutches (AREA)
Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は油中で使用される湿式多板クラッチ部材に関す
るものである。特に高温時での摩擦特性を安定化する湿
式多板クラッチ部材に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a wet multi-plate clutch member used in oil. In particular, the present invention relates to a wet multi-plate clutch member that stabilizes friction characteristics at high temperatures.
〈従来の技術〉 従来、この種の湿式多板クラッチ部材は、通常金属製の
基板の表面に摩擦材を接着した複数の環状ディスクプレ
ートと金属板などの１枚板からなる環状セパレートプレ
ートを交互に配し、環状セパレートプレートを駆動軸側
にスプライン歯を介して取り付け、かつ環状ディスクプ
レートを被動軸側にスプライン歯を介して取り付け、こ
れらを潤滑油で圧接させ環状ディスクプレートと環状セ
パレートプレートとの間に生じる摩擦力により係合させ
る機構であり、例えば自動車におけるオートマチックト
ランスミッションなどに多用されている。<Prior Art> Conventionally, a wet multi-plate clutch member of this type has a plurality of annular disc plates each having a friction material bonded to the surface of a metal substrate and an annular separate plate made of a single plate such as a metal plate alternately. , The annular separate plate is attached to the drive shaft side through the spline teeth, and the annular disc plate is attached to the driven shaft side through the spline teeth, and these are pressed against each other with lubricating oil to form the annular disc plate and the annular separate plate. It is a mechanism that is engaged by a frictional force generated between the two, and is often used in, for example, an automatic transmission in an automobile.
近年、自動車はエンジンの高出力・高回転化にともなっ
てオートマチックトランスミッションに使用されている
湿式多板クラッチ部材の高温条件下の摩擦特性の安定化
の要求が高まっている。2. Description of the Related Art In recent years, with the increase in engine output and rotation speed of automobiles, there is an increasing demand for stabilization of friction characteristics of wet multi-plate clutch members used in automatic transmissions under high temperature conditions.
これらの要求を満足させるために、一般的に、環状ディ
スクプレートについては摩擦材に耐熱性にすぐれた材料
を使用したり、気孔率の調整により回転中の潤滑油の保
持力を向上させたり、また油溝により冷却効果を向上さ
せるたりすることが提案されている。一方、環状セパレ
ートプレートについては、油溝（実開昭63-68532号公
報）、油孔（特開昭59-54825号公報、実願昭62-129424
号）や板厚を厚くするなど冷却効果を向上させることが
提案されている。In order to satisfy these requirements, generally, for the annular disc plate, a material having excellent heat resistance is used for the friction material, or the holding power of the lubricating oil during rotation is improved by adjusting the porosity, It has also been proposed to improve the cooling effect by using oil grooves. On the other hand, regarding the annular separate plate, an oil groove (Japanese Utility Model Laid-Open No. 63-68532), an oil hole (Japanese Patent Laid-Open No. 59-54825, Japanese Patent Application No. 62-129424).
No.) and increasing the plate thickness to improve the cooling effect.
〈発明が解決しようとする問題点〉 しかし上記従来の環状セパレートプレートに油溝や油孔
を設ける方法は、相手材である環状ディスクプレートの
摩擦材表面に対して攻撃性があり、摩擦材の異常摩耗や
表面ハクリという問題点がある。また加工工数がかかる
ことおよび、環状セパレートプレート自体の強度の低下
という問題点がある。板厚を厚くする方法はオートマチ
ックトランスミッションの容量や重量の点から制限があ
り、既存のトランスミッションへの適用は困難である。<Problems to be Solved by the Invention> However, the above-mentioned conventional method of providing an oil groove or oil hole in the annular separate plate is aggressive against the surface of the friction material of the annular disk plate which is the mating material, There are problems such as abnormal wear and surface peeling. Further, there are problems that it takes a lot of processing steps and that the strength of the annular separate plate itself is lowered. The method of increasing the plate thickness is limited in terms of capacity and weight of the automatic transmission, and it is difficult to apply it to existing transmissions.
〈問題点を解決するための手段〉 本発明の目的は、上記の問題点を解決し、既存の寸法、
形状のままで強度的に優れ、かつ高温時での摩擦特性を
安定化させる湿式多板クラッチ部材を提供するものであ
る。<Means for Solving Problems> An object of the present invention is to solve the above problems and to improve the existing dimensions,
Provided is a wet multi-plate clutch member which is excellent in strength while maintaining its shape and stabilizes frictional characteristics at high temperatures.
すなわち、本発明は、摩擦材を表面に持つ複数の環状デ
ィスクプレートとそれらの間に配される環状セパレート
プレートからなる湿式多板クラッチ部材において、該環
状セパレートプレートが脱炭率30〜60％の脱炭層をもつ
炭素鋼からなることを特徴とするものである。That is, the present invention is a wet multi-plate clutch member comprising a plurality of annular disc plates having a friction material on the surface and annular separate plates arranged between them, the annular separate plates having a decarburization rate of 30 to 60%. It is characterized by being made of carbon steel having a decarburized layer.
本発明で用いる炭素鋼としては、S30CM〜S85CMが使用さ
れるが、好ましくはS30CM〜S60CMである。As the carbon steel used in the present invention, S30CM to S85CM are used, and preferably S30CM to S60CM.
脱炭層を形成するための脱炭法は従来行われている方法
が用いられ、たとえば鋼を高温中で酸素を反応させ炭素
を減少させる方法などがある。脱炭層の厚さは100μｍ
以上が好ましい。As a decarburizing method for forming the decarburized layer, a conventionally used method is used, for example, a method of reacting oxygen at high temperature with steel to reduce carbon. Thickness of decarburized layer is 100 μm
The above is preferable.
環状セパレートプレートの製造方法は、炭素鋼平板から
プレートカッターにより環状に打ち抜いたり、円弧状に
打ち抜いたのち複数枚組合わせ環状にしてもよく、また
帯状の炭素鋼板を帯巾方向に周回湾曲させて環状とする
こともできる。The method of manufacturing the annular separate plate may be punched in an annular shape from a carbon steel flat plate by a plate cutter, or may be punched in an arc shape and then combined into a plurality of annular shapes, or by bending a carbon steel sheet in a band shape in a band direction. It can also be annular.
〈発明の作用および効果〉 本発明の環状セパレートプレートは、炭素鋼を使用する
ので、機械的強度が強い。また摩擦材と摺動するプレー
ト表面は元の炭素鋼から30〜60％脱炭されているので、
表面硬度は柔らかくなっており、高回転時（高温時）の
摩擦係数の低下が少なく摩擦特性が安定している。脱炭
率が30％に満たない場合は、安定化する効果が少なく、
60％を越える場合は、硬度が低くなりすぎ摩耗、キズ等
の問題がある。<Operation and Effect of the Invention> Since the annular separate plate of the present invention uses carbon steel, it has high mechanical strength. Also, the plate surface that slides on the friction material is decarburized from the original carbon steel by 30-60%,
The surface hardness is soft, and the friction coefficient is stable at high rotation speed (high temperature) and the friction characteristics are stable. If the decarburization rate is less than 30%, there is little stabilizing effect,
If it exceeds 60%, the hardness becomes too low and there are problems such as wear and scratches.
〈実施例〉 以下、本発明の実施例を示すが、本発明は、これに限定
されるものではない。<Examples> Examples of the present invention will be shown below, but the present invention is not limited thereto.
（実施例） 脱炭率50％の脱炭深さが180〜200μｍの炭素鋼S55CMの
平板をプレスカッティングで外径126mm、内径106mm、厚
さ1.8mmの環状セパレートプレートを作製した。(Example) A flat plate of carbon steel S55CM having a decarburization rate of 50% and a decarburization depth of 180 to 200 µm was press-cut to produce an annular separate plate having an outer diameter of 126 mm, an inner diameter of 106 mm and a thickness of 1.8 mm.
このときのプレート表面の硬さは126HVであった。実施
例の環状セパレートプレートと従来より一般に使用され
ている環状ディスクプレートとを用いて摩擦特性の試験
をし、その結果を図１、図２に示した。The hardness of the plate surface at this time was 126 HV. Friction characteristics were tested using the annular separate plate of the example and an annular disc plate that has been generally used conventionally, and the results are shown in FIGS. 1 and 2.
（比較例１） 脱炭処理していない炭素鋼S55CMを用いた以外は実施例
と同様の方法にて環状セパレートプレートを作製した。(Comparative Example 1) An annular separate plate was produced in the same manner as in Example except that carbon steel S55CM which was not decarburized was used.
このプレートの表面の硬さは、180HVであった。The hardness of the surface of this plate was 180 HV.
比較例の環状セパレートプレートと実施例で用いたのと
同様の環状ディスクプレートとを用いて摩擦特性の試験
をし、その結果を図１、図２に示した。Friction characteristics were tested using the annular separate plate of the comparative example and the same annular disk plate as used in the examples, and the results are shown in FIGS. 1 and 2.
実施例、比較例で用いた環状ディスクプレートは、環状
の金属基板の両面に摩擦材を接着したものである。この
摩擦材はリンターパルプ、パルプ状芳香族ポリアミドな
どの繊維類とカシューダスト、硫酸バリウムなどの充填
材を湿式抄造した紙質基材にフェノール樹脂などの熱硬
化性樹脂を含浸させたのち、加熱加工成形して得られ
た。このときの摩擦材の組成構成は繊維類40重量部、充
填材30重量部、熱硬化性樹脂30重量部であった。The annular disc plates used in Examples and Comparative Examples are formed by attaching friction materials to both surfaces of an annular metal substrate. This friction material is made by wet-paper-making a paper-like base material on which fibers such as linter pulp and pulp-like aromatic polyamide and fillers such as cashew dust and barium sulfate are impregnated with a thermosetting resin such as phenol resin, and then heat-treated. Obtained by molding. The composition of the friction material at this time was 40 parts by weight of fibers, 30 parts by weight of filler, and 30 parts by weight of thermosetting resin.
（比較例２） 普通鋼SPCC材を用いた以外は実施例、比較例１と同様の
方法にて環状セパレートプレートを作製した。(Comparative Example 2) An annular separate plate was produced in the same manner as in Example and Comparative Example 1 except that a plain steel SPCC material was used.
このプレートの表面の硬さは、135HVであった。The hardness of the surface of this plate was 135 HV.
この環状セパレートプレートと実施例、比較例１で用い
たのと同様の環状ディスクプレートを用いて摩擦特性の
試験をし、その結果を図１、図２に示した。Using this annular separate plate and the annular disk plate similar to that used in Example and Comparative Example 1, the friction characteristics were tested, and the results are shown in FIGS. 1 and 2.
（試験方法） 〈高回転時の動摩擦試験〉 試験機 ：高回転式のSAE＃２ 試験条件：回転数;5600rpm 面圧;9.6kg/cm2 給油量;1.2cc/min・cm2（軸心給油） 給油温度;80℃ 供試品の組み方;PDPDPDPDP （P:環状セパレートプレート D:環状ディスクプレート） 〈通常回転時の動摩擦試験〉 試験機 :SAE＃２ 試験条件：回転数;3600rpm 面圧;8.0kg/cm2 給油量;1（ディッピング）（軸心給油） 給油温度;100℃ 供試品の組み方;PDPDPDPDP （P:環状セパレートプレート D:環状ディスクプレート） 図示した試験結果から、特に高速回転（5600rpm）にお
いて、実施例の脱炭層を持つ環状セパレートプレートを
用いることにより3000サイクル以上で比較例に比べ動摩
擦係数の低下が少なく、摩擦特性は安定していることが
わかる。(Test method) <Dynamic friction test at high speed> Tester: High speed SAE # 2 Test condition: Rotation speed; 5600 rpm Surface pressure; 9.6 kg / cm 2 Lubrication amount; 1.2 cc / min · cm 2 (axis center Lubrication) Lubrication temperature; 80 ° C How to assemble test sample; PDPDPDPDP (P: Annular separate plate D: Annular disk plate) <Dynamic friction test at normal rotation> Testing machine: SAE # 2 Test condition: Rotation speed: 3600 rpm Surface pressure; 8.0kg / cm 2 Lubrication rate; 1 (dipping) (shaft center lubrication) Lubrication temperature; 100 ° C How to assemble the sample; PDPDPDPDP (P: Annular separate plate D: Annular disk plate) From the test results shown, especially high speed rotation It can be seen that at (5600 rpm), by using the annular separate plate having the decarburized layer of the example, the dynamic friction coefficient is less decreased and the friction characteristics are stable as compared with the comparative example after 3000 cycles or more.
図−１、図−２はそれぞれ高回転時、通常回転時の動摩
擦係数の試験結果をサイクル数との関係で表した図であ
る。FIG. 1 and FIG. 2 are views showing the test results of the dynamic friction coefficient at high speed and at normal speed, respectively, in relation to the number of cycles.
フロントページの続き (56)参考文献 特開 昭63−277704（ＪＰ，Ａ) 特開 昭57−110615（ＪＰ，Ａ) 特公 昭61−11287（ＪＰ，Ｂ２)Continuation of front page (56) Reference JP-A-63-277704 (JP, A) JP-A-57-110615 (JP, A) JP-B-61-11287 (JP, B2)
Claims (1)
レートと、それらの間に配される環状セパレートプレー
トからなる湿式多板クラッチ部材において、該環状セパ
レートプレートが脱炭率30〜60％の脱炭層をもつ炭素鋼
からなることを特徴とする湿式多板クラッチ部材。1. A wet multi-plate clutch member comprising a plurality of annular disc plates having a friction material on the surface and annular separate plates arranged between the annular disc plates, wherein the annular separate plates have a decarburization rate of 30 to 60%. A wet multi-plate clutch member comprising a carbon steel having a decarburized layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1080729A JPH0672618B2 (en) | 1989-03-30 | 1989-03-30 | Wet multi-plate clutch member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1080729A JPH0672618B2 (en) | 1989-03-30 | 1989-03-30 | Wet multi-plate clutch member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02261927A JPH02261927A (en) | 1990-10-24 |
| JPH0672618B2 true JPH0672618B2 (en) | 1994-09-14 |
Family
ID=13726464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1080729A Expired - Fee Related JPH0672618B2 (en) | 1989-03-30 | 1989-03-30 | Wet multi-plate clutch member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0672618B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018105088A1 (en) * | 2016-12-08 | 2018-06-14 | 日新製鋼株式会社 | Cold rolled steel sheet for separator plate |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57110615A (en) * | 1980-12-26 | 1982-07-09 | Kawasaki Steel Corp | Production of refined steel having superior ammonia cracking resistance |
| JPS6111287A (en) * | 1984-06-28 | 1986-01-18 | Ricoh Co Ltd | Multicolor image thermal recording medium |
| JPS63277704A (en) * | 1987-05-11 | 1988-11-15 | Mitsubishi Metal Corp | Flattening treatment for multi-plate type clutch plate |
-
1989
- 1989-03-30 JP JP1080729A patent/JPH0672618B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02261927A (en) | 1990-10-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |