JPH0370353B2 - - Google Patents
Info
- Publication number
- JPH0370353B2 JPH0370353B2 JP12856784A JP12856784A JPH0370353B2 JP H0370353 B2 JPH0370353 B2 JP H0370353B2 JP 12856784 A JP12856784 A JP 12856784A JP 12856784 A JP12856784 A JP 12856784A JP H0370353 B2 JPH0370353 B2 JP H0370353B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- sliding
- brush
- sliding contact
- slip ring
- 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
- 239000000956 alloy Substances 0.000 claims description 10
- 229910052787 antimony Inorganic materials 0.000 claims description 5
- 229910052745 lead Inorganic materials 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Contacts (AREA)
- Motor Or Generator Current Collectors (AREA)
- Massaging Devices (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Description
（産業上の利用分野）
本発明は、摺動接点装置に係り、特にそれを構
成するブラシとコンミテータ又はスリツプリング
の材料に関する。
（従来技術の問題点）
従来の摺動接点装置は、Au30〜50重量％、
Ag20〜40重量％、Pd20〜40重量％の合金材料に
て構成したブラシと、Ag−Cd0.5〜15重量％の合
金材料にて構成したコンミテータ又はスリツプリ
ングとを組み合わせて成るものである。
ところで、この摺動接点装置ではブラシが、コ
ンミテータ又はスリツプリングとの摺動時に摩耗
し易くノイズ発生の原因となつていた。
一方、コンミテータ又はスリツプリングは、ブ
ラシとの摺動時、粘着性が高く耐摩耗性に劣るも
のであつた。
（発明の目的）
本発明は斯かる欠点を解消すべくなされたもの
であり、ブラシの摩耗を抑え、コンミテータ又は
スリツプリングの耐摩耗性を向上させた摺動接点
装置を提供せんとするものである。
（発明の構成）
本発明の摺動接点装置は、Au30〜50重量％、
Ag20〜40重量％、Pd20〜40重量％の合金材料に
て構成したブラシと、Cdを0.5〜15重量％、Sb、
Pb及びZnの少なくとも一種を合計で0.5〜３重量
％及び残部Agより成る合金材料にて構成したコ
ンミテータ又はスリツプリングとを組み合わせて
成るものである。
本発明の摺動接点装置に於いて、ブラシを従来
のブラシと同じAu30〜50重量％、Ag20〜40重量
％、Pd20〜40重量％の合金材料にて構成した理
由は、優れた耐食性を活かすためである。
コンミテータ又はスリツプリングを、0.5〜15
重量％のCd以外にSb、Pb及びZnの少なくとも１
種を合計で0.5〜３重量％及び残部Agより成る合
金材料にて構成した理由は、ブラシとの摺動時の
粘着性を抑えて耐摩耗性を向上すべく潤滑剤とな
る酸化物を適量発生させる為で、0.5重量％未満
では酸化物の発生量が少なくて潤滑剤としての効
果を発揮できず、３重量％を超えると酸化物の発
生量が多くなり、接触抵抗が高くなり、その上不
安定となるものである。
（実施例及び従来例）
Au40重量％−Ag30重量％−Pd30重量％の合金
材料より成る線径0.7mmのブラシ線材を各々長さ
８mmに切断し、２本並列させて一端を幅10mm、長
さ13mm、厚さ0.2mmの台材に溶接し、他端に2Rの
円弧状の接触部を曲成してブラシを作つた。一方
下記の表の左欄に示す成分組成の実施例及び従来
例の合金材料により成る厚さ0.5mmの板材を打ち
抜いて直径50mmのスリツプリングを作つた。然し
てこれらブラシ及びスリツプリングを夫々組み合
わせて摺動接点装置を作り、夫々ブラシをスリツ
プリングに接触させ、スリツプリングを正逆回転
させて下記の試験条件にて摺動試験を行ない、ブ
ラシ及びスリツプリングの摩耗量と接触抵抗を測
定した処、下記の表の右欄に示すような結果を得
た。
試験条件
電流：0.6A
電圧：12V
負荷：抵抗負荷
回転速度：1000回転／分
周速度：120〜130ｍ／min
接触力：100ｇ
摺動時間：７時間
(Industrial Application Field) The present invention relates to a sliding contact device, and particularly to materials for a brush, a commutator, or a slip ring constituting the sliding contact device. (Problems with conventional technology) Conventional sliding contact devices contain 30 to 50% Au by weight.
It is a combination of a brush made of an alloy material containing 20-40% by weight of Ag and 20-40% by weight of Pd, and a commutator or slip ring made of an alloy material containing 0.5-15% by weight of Ag-Cd. By the way, in this sliding contact device, the brushes tend to wear out when sliding with the commutator or the slip ring, causing noise generation. On the other hand, commutators or slip rings have high stickiness and poor abrasion resistance when sliding with brushes. (Object of the Invention) The present invention has been made to eliminate such drawbacks, and aims to provide a sliding contact device that suppresses brush wear and improves the wear resistance of a commutator or slip ring. be. (Structure of the Invention) The sliding contact device of the present invention includes Au30 to 50% by weight,
A brush composed of an alloy material containing 20 to 40% by weight of Ag, 20 to 40% by weight of Pd, 0.5 to 15% by weight of Cd, Sb,
It is combined with a commutator or a slip ring made of an alloy material containing at least one of Pb and Zn in a total of 0.5 to 3% by weight and the balance being Ag. In the sliding contact device of the present invention, the reason why the brush is made of the same alloy material as conventional brushes, which is 30 to 50% by weight of Au, 20 to 40% by weight of Ag, and 20 to 40% by weight of Pd, is to take advantage of its excellent corrosion resistance. It's for a reason. Commutator or slip ring, 0.5~15
At least 1 of Sb, Pb and Zn in addition to Cd in weight%
The reason why the seeds are made of an alloy material consisting of a total of 0.5 to 3% by weight and the balance of Ag is that it contains an appropriate amount of oxide that acts as a lubricant to suppress stickiness when sliding with the brush and improve wear resistance. If it is less than 0.5% by weight, the amount of oxide generated will be small and it will not be effective as a lubricant, and if it exceeds 3% by weight, the amount of oxide generated will increase, resulting in high contact resistance and This will result in instability. (Example and Conventional Example) Brush wires made of an alloy material of 40% by weight of Au, 30% by weight of Ag, and 30% by weight of Pd, each having a wire diameter of 0.7 mm, are cut into lengths of 8 mm, and two wires are placed in parallel with one end being 10 mm wide and long. A brush was made by welding it to a base material with a length of 13 mm and a thickness of 0.2 mm, and a 2R arc-shaped contact part was curved at the other end. On the other hand, slip rings with a diameter of 50 mm were made by punching out 0.5 mm thick plates made of alloy materials having the compositions shown in the left column of the table below. A sliding contact device was made by combining these brushes and slip rings, and a sliding test was conducted under the following test conditions by bringing each brush into contact with the slip ring and rotating the slip ring in forward and reverse directions. When we measured the amount of wear and contact resistance, we obtained the results shown in the right column of the table below. Test conditions Current: 0.6A Voltage: 12V Load: Resistance load Rotation speed: 1000 rotations/Division speed: 120-130m/min Contact force: 100g Sliding time: 7 hours
【表】
上記の表で明らかなように実施例１〜12の摺動
接点装置のブラシとスリツプリングは、夫々従来
例１、２の摺動接点装置のブラシとスリツプリン
グに比し摩耗量が少なく、接触抵抗は低く安定し
ていることが判る。これはひとえに実施例１〜12
の摺動接点装置のスリツプリングを構成している
合金材料が、摺動時にSb、Pb、Zn等の酸化物が
発生し、この酸化物が潤滑剤となり、耐摩耗性が
向上し、また酸化物が軟らかいため、摺動作用に
より容易に除去され、スリツプリングの接触面は
常に清浄となつて接触抵抗が低くなるからに他な
らない。
（発明の効果）
以上詳記した通り本発明の摺動接点装置は、従
来の摺動接点装置に比べブラシとコンミテータ又
はスリツプリングの摩耗量が少なく、ノイズの発
生が殆どなく、また接触抵抗についても低く安定
しているので、従来の摺動接点装置にとつて代わ
ることのできる画期的なものと云える。[Table] As is clear from the table above, the brushes and slip rings of the sliding contact devices of Examples 1 to 12 have a greater amount of wear compared to the brushes and slip rings of the sliding contact devices of Conventional Examples 1 and 2, respectively. It can be seen that the contact resistance is low and stable. This is just Examples 1 to 12.
The alloy material that makes up the slip ring of the sliding contact device generates oxides such as Sb, Pb, and Zn when sliding, and these oxides act as a lubricant, improving wear resistance and preventing oxidation. This is because the material is soft and can be easily removed by the sliding action, and the contact surface of the slip ring is always clean, resulting in low contact resistance. (Effects of the Invention) As detailed above, the sliding contact device of the present invention has less wear on the brush, commutator, or slip ring than conventional sliding contact devices, generates almost no noise, and has low contact resistance. Since the contact point is low and stable, it can be said to be an epoch-making device that can replace conventional sliding contact devices.
Claims (1)
40重量％の合金材料にて構成したブラシと、Cd
を0.5〜15重量％、Sb、Pb及びZnの少なくとも一
種を合計で0.5〜３重量％及び残部Agより成る合
金材料にて構成したコンミテータ又はスリツプリ
ングとを組み合わせて成る摺動接点装置。1 Au30-50% by weight, Ag20-40% by weight, Pd20-
A brush made of 40% by weight alloy material and Cd
0.5 to 15% by weight of Sb, Pb, and Zn, a total of 0.5 to 3% by weight of at least one of Sb, Pb, and Zn, and the balance is Ag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12856784A JPS618868A (en) | 1984-06-22 | 1984-06-22 | Slide contact unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12856784A JPS618868A (en) | 1984-06-22 | 1984-06-22 | Slide contact unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS618868A JPS618868A (en) | 1986-01-16 |
| JPH0370353B2 true JPH0370353B2 (en) | 1991-11-07 |
Family
ID=14987947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12856784A Granted JPS618868A (en) | 1984-06-22 | 1984-06-22 | Slide contact unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS618868A (en) |
-
1984
- 1984-06-22 JP JP12856784A patent/JPS618868A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS618868A (en) | 1986-01-16 |