JPS60109661A - Disc for belt-drive type continuously variable transmission - Google Patents
Disc for belt-drive type continuously variable transmissionInfo
- Publication number
- JPS60109661A JPS60109661A JP21459283A JP21459283A JPS60109661A JP S60109661 A JPS60109661 A JP S60109661A JP 21459283 A JP21459283 A JP 21459283A JP 21459283 A JP21459283 A JP 21459283A JP S60109661 A JPS60109661 A JP S60109661A
- Authority
- JP
- Japan
- Prior art keywords
- disc
- hoop
- belt
- continuously variable
- variable transmission
- 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
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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H55/38—Means or measures for increasing adhesion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
Abstract
Description
【発明の詳細な説明】
イ、産業上の利用分野
本発明は、ヘルド駆動式無段変速機用ディスクに関し、
詳しくは、ベルト駆動式無段変速機において、対向した
円錐板状ディスクの駆動面表面に、凹凸を設けることに
より、ヘルドのスリップ防止、伝達効率の向上をはかっ
た、ベルト駆動式無段変速機用ディスクにかかる。DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a disc for a heald-driven continuously variable transmission;
In detail, the belt-driven continuously variable transmission is designed to prevent slippage of the heald and improve transmission efficiency by providing unevenness on the drive surfaces of the opposing conical disks. It takes a long time to use the disc.
口、従来技術
無段変速機は、変速機の変速比を連続的にルＩＩ御でき
るものであり、エンジンの特性を十分にいかし、排気ガ
スや燃費を改善することができる。The conventional continuously variable transmission is capable of continuously controlling the gear ratio of the transmission, making full use of the characteristics of the engine and improving exhaust gas and fuel efficiency.
一般に、無段変速機は、流体式、機械式、および、電気
式に分類されるが、車両用としては、はとんど流体式と
機械式であり、この中でも、油圧駆動、ヘルド駆動、お
よび流体トルクコンバータ等が主要なものである。In general, continuously variable transmissions are classified into fluid type, mechanical type, and electric type, but for vehicles, most of them are fluid type and mechanical type, and among these, hydraulic drive, held drive, and fluid torque converters are the main ones.
そして、ベルト駆動式無段変速機は、第１図および第２
図に示すように、対向する円εＩＬ板状のディスクｌは
、この２組のディスク１間にヘルド状に掛装された、複
数の無端金属帯を積層状に重ねて形成したフープ２と、
フープ溝を有し、この５−ブ溝を介してフープ２の幅方
向に摺動移動可能であり、かつ、連続して配列された多
数のブロック３から構成されている。The belt-driven continuously variable transmission is shown in Figures 1 and 2.
As shown in the figure, the opposing circles εIL plate-shaped disks 1 are suspended between the two sets of disks 1 in a heald shape, and are formed by stacking a plurality of endless metal bands in a hoop 2,
It has a hoop groove, is slidable in the width direction of the hoop 2 through the five-groove groove, and is composed of a large number of blocks 3 arranged in succession.
そして、ベルトに用いられているブロック３のディスク
１との当接面４にはブロック３とディスク１の摩擦係数
を調整するために２０〜３０μのランダムな表面凹凸が
形成されている。Random surface irregularities of 20 to 30 microns are formed on the contact surface 4 of the block 3 used in the belt with the disk 1 in order to adjust the coefficient of friction between the block 3 and the disk 1.
そして、上記２組のディスク１のうち一方は、可動側と
固定側とからなっており、固定側に対し可動側を、図示
されないクラッチにより対向方向に移動させて、変速比
を変化させるものである。One of the two sets of disks 1 has a movable side and a fixed side, and the movable side is moved in the opposite direction with respect to the fixed side by a clutch (not shown) to change the gear ratio. be.
ところで、ベルト式無段変速機において、ヘルドとして
用いられるブロック３は、対向する円錐板上のディスク
ｌに圧接されトルクを伝達するが、ブロック３とディス
ク１の相対的摩擦係数が低いと、ベルトのスリップを生
ずる欠点がある。By the way, in a belt-type continuously variable transmission, the block 3 used as a heald is pressed against the disk l on the opposing conical plate and transmits torque. However, if the relative coefficient of friction between the block 3 and the disk 1 is low, the belt It has the disadvantage of causing slippage.
ベルトのスリップは、伝達効率を低下させるばかりでな
く、ベルトおよびディスクＩに、スカッフィング等の損
傷を引き起こすという欠点もある。Belt slip not only reduces transmission efficiency but also has the disadvantage of causing damage to the belt and disk I, such as scuffing.
一方、ブロック３とディスク１の相対的摩擦係数が高す
き゛ると、円滑な変速ができず、車両の振動または界音
を発生したりする欠点がある。On the other hand, if the relative coefficient of friction between the block 3 and the disk 1 is too high, smooth gear changes may not be possible, resulting in the generation of vehicle vibrations or field noise.
また、ベルトおよびディスク１の寿命が低下する欠点が
ある。Further, there is a drawback that the life of the belt and the disk 1 is shortened.
上記のことから、ブロック３とディスクＩの相対的摩擦
係数を適切な範囲とする必要があり、このための対策と
して、従来、ブロック端面３ａにジョンドブラストする
ことにより、面粗度を粗くして、相対的な摩擦係数を調
整することが試みられている。From the above, it is necessary to set the relative coefficient of friction between the block 3 and the disk I within an appropriate range, and as a countermeasure for this, conventionally, the block end face 3a is roughened by blasting the end face 3a. , attempts have been made to adjust the relative friction coefficients.
ハ、発明の目的
本発明は、対向する円錐板状をした駆動面に、表面凹凸
を形成することにより、ベルトのスリップ防止、伝達効
率の向上、ベルトおよびディスクの長寿命化を可能にす
るとともに、ブロック端面に表面凹凸を形成する場合に
比較して、ベルト駆動式無段変速機の、寸法精度および
生産性を向上することのできる、ヘルド駆動式無段変速
機用ディスクを提供することを目的としている。C. Purpose of the Invention The present invention prevents belt slippage, improves transmission efficiency, and extends the life of belts and disks by forming surface irregularities on opposing drive surfaces in the shape of conical plates. It is an object of the present invention to provide a disc for a heald-driven continuously variable transmission that can improve the dimensional accuracy and productivity of a belt-driven continuously variable transmission compared to a case where surface irregularities are formed on the end face of the block. The purpose is
二、発明の構成
このような目的は、本発明によれば、対向する円錐板状
の２組のディスクと、この２組のディスク間にベルト状
に掛装された、複数の無端金属帯を積層状に重ねて形成
したフープと、断面Ｔの字状をなし、その薄肉突出部と
厚肉突出部の間にはフープを挿通するフープ溝が形成さ
れ、該フープ溝にフープを挿通することにより、フープ
の幅方向に摺動移動可能であり、前記厚肉突出部が、前
記ディスクの駆動面に当接するテーパ状の側面をナスト
トモに、連続的に配列された複数のブロックとからなる
、無段変速機における、ベルト駆動式無段変速機用ディ
スクであって、
前述の対向する円錐板状のディスク駆動面に、２０μ以
上の表面凹凸を形成するとともに、表面凸部先端の平坦
部面積率を、２０〜７０％としたことを特徴とする、ベ
ルト駆動式無段変速機用ディスクによって達成される。2. Structure of the Invention According to the present invention, two sets of conical plate-shaped disks facing each other and a plurality of endless metal bands hung like a belt between the two sets of disks are provided. The hoops formed in a laminated manner have a T-shaped cross section, and a hoop groove for inserting the hoop is formed between the thin protrusion part and the thick protrusion part, and the hoop is inserted into the hoop groove. The thick-walled protruding portion is configured of a plurality of blocks that are continuously arranged so as to be slidably movable in the width direction of the hoop, and the tapered side surface that contacts the drive surface of the disk is arranged in a straight line. A disc for a belt-driven continuously variable transmission in a continuously variable transmission, in which surface irregularities of 20μ or more are formed on the aforementioned opposing conical plate-shaped disc drive surfaces, and a flat part area at the tip of the surface convexity is formed. This is achieved by a disc for a belt-driven continuously variable transmission characterized in that the ratio is 20 to 70%.
ホ、実施例 以下、添付図面に基づいて、本発明の詳細な説明する。E, Example Hereinafter, the present invention will be described in detail based on the accompanying drawings.
なお、下記実施例の説明において、前記第１図および第
２図の従来例と、同一または相当部分については、第１
図および第２図と同一の符号を付すことにより説明を省
略する。In the description of the embodiments below, parts that are the same as or equivalent to those of the conventional example shown in FIGS.
Explanation will be omitted by assigning the same reference numerals as those in the figure and FIG. 2.
第３図および第４図に、本発明によりディスク１駆動面
に、表面凹凸を形成した実施例を示す。FIGS. 3 and 4 show an embodiment in which surface irregularities are formed on the drive surface of the disk 1 according to the present invention.
第３図は、ディスクｌの駆動面の断面形状であり、ディ
スク１の駆動面には、２０μｍ以上の表面凹凸が形成さ
れている。FIG. 3 shows a cross-sectional shape of the drive surface of the disk 1, and the drive surface of the disk 1 has surface irregularities of 20 μm or more.
また、ブロック３とディスク１の間には、高負荷が負荷
される場合には、第４図のように、表面凸部先端に面積
率にして２０〜７０％の平坦部を成形することにより、
ブロック３およびディスク１の耐久性を、さらに向上す
ることができるものである。In addition, when a high load is applied between the block 3 and the disk 1, as shown in Fig. 4, a flat part with an area ratio of 20 to 70% is formed at the tip of the surface convex part. ,
The durability of the block 3 and the disk 1 can be further improved.
第５図に、表面凸部先端に平坦部を形成した場合におけ
る、ディスクの駆動面の表面外観写真を示している。FIG. 5 shows a photograph of the surface appearance of the drive surface of the disk in the case where a flat portion is formed at the tip of the surface convex portion.
この写真において、色白部が表面凸部先端の平坦部であ
り、黒色部が表面四部（谷部）である。In this photograph, the fair-skinned part is the flat part at the tip of the surface convex part, and the black part is the four parts (troughs) of the surface.
この例においては、平坦部面積率が３５％となっている
。In this example, the flat portion area ratio is 35%.
なお、第３図の表面凹凸形状とするには、ショツトブラ
スト、リキッドホーニング、エツチング等の手段があり
、また、第４図の表面凸部先端の平坦部は、軽い機械加
工、またはならし運転等により形成させることができる
。The uneven surface shape shown in Figure 3 can be achieved by means such as shot blasting, liquid honing, and etching, and the flat portion at the tip of the surface convexity shown in Figure 4 can be achieved by light machining or breaking-in. It can be formed by et al.
上述のようにして、駆動面の表面凸部先端の、平坦部面
積率を種々に変化させたディスクを製作し、それぞれ自
動車用ベルト駆動式無段変速機に組込み、一定変速比の
耐久試験を行った。As described above, disks with various flat area ratios at the tip of the convex portion of the drive surface were manufactured, each was incorporated into an automobile belt-driven continuously variable transmission, and an endurance test was conducted at a constant gear ratio. went.
評価は、ディスク１材として、ＪＩＳ規格ＳＣＭ３０の
浸炭焼入後ショツトブラストしたもの、ブロック３の材
料として、ＪＩＳ規格ＳＵＪ ２の焼入・焼もどし後端
面研磨したものを用いて、試験条件は、入力回転数；３
５００ｒｐｍ、変速比；２、出力トリクＨ１５ｋｇ−ｍ
、試験時間；１５０時間、とした。For the evaluation, the disk 1 material was carburized and quenched to JIS standard SCM30 and then shot blasted, and the block 3 material was quenched and tempered to JIS standard SUJ 2 and the end surface polished.The test conditions were as follows. Input rotation speed: 3
500rpm, gear ratio: 2, output torque H15kg-m
, test time: 150 hours.
この試験結果を第６図に示す。The test results are shown in FIG.
この結果から、ディスク１の駆動面の表面凸部先端平坦
部面積率が、２０〜７０％のものでは、ブロック３の摩
耗が少なく耐久性に優れているが、２０％未満ではブロ
ック端面３ａに疲労による過大摩耗が生じ、７０％を越
えるとディスク１とブロック３の間にスリップが発生す
るため、焼付きにより過大摩耗を生じることが明らかと
なった。From this result, when the area ratio of the flat part at the tip of the surface convex part of the drive surface of the disk 1 is 20 to 70%, the block 3 has less wear and has excellent durability, but when it is less than 20%, the block end face 3a It has become clear that excessive wear occurs due to fatigue, and when it exceeds 70%, slip occurs between the disk 1 and the block 3, resulting in excessive wear due to seizure.
へ、発明の作用効果
以上により明らかなように、本発明にがかるヘルド駆動
式無段変速機用ディスクによれば、対向する円錐板状を
した駆動面に、表面凹凸を形成することにより、ベルト
のスリップ防止、伝達効率の向上、ベルトおよびディス
クの長寿命化を可能にするとともに、ブロック端面に表
面凹凸を形成する場合に比較して、ベルト駆動式無段変
速機の、寸法精度および生産性を向上することができる
利点がある。F. Effects of the Invention As is clear from the above, according to the disc for a heald drive type continuously variable transmission according to the present invention, by forming surface irregularities on the opposing conical drive surfaces, the belt In addition to preventing slippage, improving transmission efficiency, and extending the life of the belt and disk, it also improves the dimensional accuracy and productivity of belt-driven continuously variable transmissions compared to the case where surface irregularities are formed on the block end face. It has the advantage of being able to improve
第１図は、従来のベルト駆動式無段変速機の主要部概略
斜視図、
第２図は、フープとブロックの組付は状態を示す斜視図
、
第３図は、表面凹凸を形成したディスク駆動面の断面形
状を示す図、
第４図は、本発明のディスク駆動面の断面形状を示す図
、
第５図は、本発明のディスク駆動面の表面状態を示す模
式図である。
第６図は、ディスクの駆動面の表面凸部先端平坦部面積
率によるブロックの摩耗量変化を示すグラフ、
１−−−−−−ディスク
２−一一−−フープ
３−−−−−−ブロック
３ａ−−−−−−ブロック端面
出願人 トヨタ自動車杯式冷ギ
第１図
第２図
図面の浄瘉：（内容に変更なし）
Ｘ１００
第５図
第６１１１
手続補正書 （方式）
昭和ダク年３月）２日
２、発明の名称
ヘルド駆動式無段変速機用ディスク
３、補正をする者
事件との関係 特許出願人
住所 愛知県豊田市トヨタ町１番地 〒４７１昭和５９
年 ２月２８日
５、補正の対象
（１）明細書全文 （２）図面
６、補正の内容Figure 1 is a schematic perspective view of the main parts of a conventional belt-driven continuously variable transmission. Figure 2 is a perspective view showing how the hoop and block are assembled. Figure 3 is a disc with an uneven surface. FIG. 4 is a diagram showing the cross-sectional shape of the disk drive surface of the present invention. FIG. 5 is a schematic diagram showing the surface state of the disk drive surface of the present invention. FIG. 6 is a graph showing changes in the wear amount of the block depending on the area ratio of the flat part at the tip of the convex part of the driving surface of the disc. Block 3a -------Block end applicant Toyota Motor Cup type cold gear 1, 2, and 2 drawings: (no change in content) March) 2nd, 2nd, Title of the invention: Disk 3 for Held Drive Continuously Variable Transmission, Relationship with the case of the person making the amendment Patent Applicant Address: 1 Toyota-cho, Toyota City, Aichi Prefecture Address: 1971, Toyota City, Aichi Prefecture
February 28, 2015 5. Subject of amendment (1) Full text of specification (2) Drawing 6. Contents of amendment
Claims (1)
ディスク間にベルト状に掛装された、複数の無端金属帯
を積層状に重ねて形成したフープと、断面Ｔの字状をな
し、その薄肉突出部と厚肉突出部の間には、フープを挿
通するフープ溝が形成され、該フープ溝にフープを挿通
することにより、フープの幅方向に摺動移動可能であり
、前記厚肉突出部が、前記ディスクの駆動面に当接する
テーパ状の側面をなすとともに、連続的に配列された複
数のブロックとからなる、無段変速機における、ベルト
駆動式無段変速機用ディスクであって、 前述の対向する円錐板状のディスク駆動面に、２０μ以
上の表面凹凸を形成するとともに、表面凸部先端の平坦
部面積率を、２０〜７０％としたことを特徴とする、ヘ
ルド駆動式無段変速機用ディスク。[Scope of Claims] (1) Two sets of opposing conical plate-shaped discs, and a hoop formed by stacking a plurality of endless metal bands suspended like a belt between the two sets of discs; , has a T-shaped cross section, and a hoop groove into which the hoop is inserted is formed between the thin protrusion and the thick protrusion.By inserting the hoop into the hoop groove, the hoop can slide in the width direction of the hoop. The belt drive in a continuously variable transmission is movable, and the thick-walled protrusion has a tapered side surface that contacts the drive surface of the disk, and is composed of a plurality of continuously arranged blocks. A disc for a continuously variable transmission, in which surface irregularities of 20μ or more are formed on the above-mentioned opposing conical plate-shaped disc drive surfaces, and the area ratio of the flat part at the tip of the surface convexity is 20 to 70%. A disc for a heald-driven continuously variable transmission, which is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21459283A JPS60109661A (en) | 1983-11-14 | 1983-11-14 | Disc for belt-drive type continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21459283A JPS60109661A (en) | 1983-11-14 | 1983-11-14 | Disc for belt-drive type continuously variable transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60109661A true JPS60109661A (en) | 1985-06-15 |
Family
ID=16658265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21459283A Pending JPS60109661A (en) | 1983-11-14 | 1983-11-14 | Disc for belt-drive type continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60109661A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS631958U (en) * | 1986-06-23 | 1988-01-08 | ||
| JPH0230437A (en) * | 1988-07-14 | 1990-01-31 | Suzuki Motor Co Ltd | Manufacture of disk for belt-driven non-stage transmission |
| JP2006118535A (en) * | 2004-10-19 | 2006-05-11 | Honda Motor Co Ltd | Belt type continuously variable transmission |
| JP2006242361A (en) * | 2005-03-07 | 2006-09-14 | Bando Chem Ind Ltd | Belt transmission device |
| WO2008116961A1 (en) * | 2007-03-26 | 2008-10-02 | Sheng Yong | Variable diameter pulley of high-power continuously variable transmission and continuously variable transmission system |
| CN102003675A (en) * | 2009-08-27 | 2011-04-06 | 株式会社小糸制作所 | Lamp design surface member and method of manufacturing lamp design surface member |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536670A (en) * | 1978-09-06 | 1980-03-14 | Junpei Onaka | Transmission mechanism |
-
1983
- 1983-11-14 JP JP21459283A patent/JPS60109661A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536670A (en) * | 1978-09-06 | 1980-03-14 | Junpei Onaka | Transmission mechanism |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS631958U (en) * | 1986-06-23 | 1988-01-08 | ||
| JPH0230437A (en) * | 1988-07-14 | 1990-01-31 | Suzuki Motor Co Ltd | Manufacture of disk for belt-driven non-stage transmission |
| US4947533A (en) * | 1988-07-14 | 1990-08-14 | Suzuki Jidosha Kogyo Kabushiki Kaisha | Manufacturing method of disk for belt-driven continuously-variable-speed drive |
| JP2006118535A (en) * | 2004-10-19 | 2006-05-11 | Honda Motor Co Ltd | Belt type continuously variable transmission |
| JP2006242361A (en) * | 2005-03-07 | 2006-09-14 | Bando Chem Ind Ltd | Belt transmission device |
| WO2008116961A1 (en) * | 2007-03-26 | 2008-10-02 | Sheng Yong | Variable diameter pulley of high-power continuously variable transmission and continuously variable transmission system |
| CN102003675A (en) * | 2009-08-27 | 2011-04-06 | 株式会社小糸制作所 | Lamp design surface member and method of manufacturing lamp design surface member |
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