JPH057807B2 - - Google Patents
Info
- Publication number
- JPH057807B2 JPH057807B2 JP59090767A JP9076784A JPH057807B2 JP H057807 B2 JPH057807 B2 JP H057807B2 JP 59090767 A JP59090767 A JP 59090767A JP 9076784 A JP9076784 A JP 9076784A JP H057807 B2 JPH057807 B2 JP H057807B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- alloy material
- brush
- sliding
- sliding contact
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/023—Composite material having a noble metal as the basic material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Contacts (AREA)
Description
（産業上の利用分野）
本発明は、摺動接点材料に係り、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
の材料の改良に関する。
（従来技術）
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。
（発明が解決しようとする問題点）
ところで、この摺動接点装置のブラシは、前述
の如き合金材料より構成されているので、コンミ
テータ又はスリツプリングとの摺動時の耐摩耗性
が劣り、摩耗粉が生じ易くノイズ発生の原因とな
つていた。
一方、コンミテータはスリツプリングは、Ag
−Cd0.5〜15重量％の合金材料のより構成され、
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、ブラシの耐摩耗性を向上させ、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。
（問題点を解決するための手段）
本発明の摺動接点装置は、Au30〜50重量％、
Ag20〜40重量％、Pd20〜40重量％のAu−Ag−
Pdが95〜99.5重量％及び残部がNb、In、及びCd
の少なくとも一種を合計で0.5〜５重量％から成
る合金材料にて構成したブラシとを組み合わせて
成るものである。
（作用）
本発明の摺動接点材料に於いて、ブラシを
Au30〜50重量％、Ag20〜40重量％、Pd20〜40重
量％のAu−Ag−Pdが95〜99.5重量％及び残部が
Nb、In及びCdの少なくとも一種を合計で0.5〜５
重量％から成る合金材料にて構成した理由は、前
記Au−Ag−Pdの合金材料の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、５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。また、
Au、Ag、Pdの含有量は、前記従来の合金材料の
組成比に変更を加えない範囲とすることにより、
従来の合金材料の特性は損なわれることなく発揮
されることとなるものである。
コンミテータ又はスリツプリングを、Ag−
Cu3〜12重量％又はAg−Cu3〜12重量％−Cd5重
量％以下の合金材料にて構成した理由は、ブラシ
との摺動時の貼着性を迎えて耐摩耗性を向上させ
る為で、Cuの含有量が３重量％未満ではその効
果が得られず、12重量％を超えると摺動時に発生
する酸化物の量が多くなりすぎて接触抵抗が高く
不安定になり、Cdの含有量が５重量％を超える
とこれが酸化Cdとなつた際、接触抵抗が高くな
り、耐摩耗性が劣化するものである。従つて、
Cuの含有量は３〜12重量％、Cdの含有量は５重
量％を超えないようにしたものである。
次に本発明による摺動接点装置の具体的な実施
例と従来例について説明する。
（実施例）
下記の表−１の左欄に示す成分組成の実施例及
び従来例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−１の右欄に示す成分
組成の実施例及び従来定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−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 ：120〜130m／min
接触力 ：100g
試験時間：７時間
(Industrial Application Field) The present invention relates to sliding contact materials, and particularly to improvements in the materials of the brushes, commutators, or slip rings that constitute them. (Prior art) Conventional sliding contact devices contain Au30-50% 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. (Problems to be Solved by the Invention) By the way, since the brush of this sliding contact device is made of the above-mentioned alloy material, it has poor wear resistance when sliding with the commutator or slip ring, and is susceptible to wear. Powders were easily generated, which caused noise. On the other hand, the commutator is a slip ring that is Ag
- Composed of 0.5-15% by weight Cd alloy material;
When sliding with a brush, it was highly sticky and had poor abrasion resistance. (Object of the Invention) The present invention has been made in order to eliminate such drawbacks, and provides a sliding contact device that improves the wear resistance of the brush and the wear resistance of the commutator or slip ring. That is. (Means for solving the problem) The sliding contact device of the present invention includes Au30 to 50% by weight,
Au−Ag− with Ag20~40wt%, Pd20~40wt%
95-99.5% by weight of Pd and the balance is Nb, In, and Cd
and a brush made of an alloy material containing a total of 0.5 to 5% by weight of at least one of the above. (Function) In the sliding contact material of the present invention, the brush
Au-Ag-Pd is 95-99.5% by weight and the balance is 30-50% by weight of Au, 20-40% by weight of Ag, 20-40% by weight of Pd.
At least one of Nb, In and Cd in total of 0.5 to 5
The reason why it is made of an alloy material consisting of % by weight is to generate an appropriate amount of oxides that act as a lubricant in order to improve the wear resistance of the Au-Ag-Pd alloy material.
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 5% by weight, the amount of oxide generated will increase, resulting in high contact resistance and instability. It is something. Also,
By setting the content of Au, Ag, and Pd within a range that does not change the composition ratio of the conventional alloy material,
The properties of conventional alloy materials will be exhibited without being impaired. Commutator or slip spring, Ag-
The reason why it is made of an alloy material of 3 to 12% by weight of Cu or 3 to 12% of Ag-Cu to 5% by weight of Cd is to improve the wear resistance when sliding with the brush. If the Cu content is less than 3% by weight, this effect cannot be obtained, and if it exceeds 12% by weight, the amount of oxide generated during sliding will be too large, resulting in high contact resistance and instability. If it exceeds 5% by weight, when it becomes oxidized Cd, contact resistance increases and wear resistance deteriorates. Therefore,
The content of Cu is 3 to 12% by weight, and the content of Cd is not more than 5% by weight. Next, specific embodiments and conventional examples of the sliding contact device according to the present invention will be described. (Example) Brush wire rods with a wire diameter of 0.7 mm made of alloy materials of the example and conventional example shown in the left column of Table 1 below were each cut into lengths of 8 mm, and two wires were placed in parallel and one end was cut. A brush was made by welding it to a base material with a width of 10 mm, a length of 13 mm, and a thickness of 0.2 mm, and a 2R arc-shaped contact part was bent at the other end. On the other hand, a slip ring with a diameter of 50 mm was made by punching out a plate material with a thickness of 0.5 mm, which was made of an alloy material according to the embodiments and conventional standard compositions shown in the right column of Table 1 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 the amount of wear and contact resistance were measured, the results shown in the table below were obtained. Test conditions Current: 0.6A Voltage: 12V Load: Resistive load Rotation speed: 1000 revolutions/min Circumferential speed: 120-130m/min Contact force: 100g Test time: 7 hours
【表】【table】
【表】【table】
【表】
上記の表−２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の摺動接点のブラシとスリツプリン
グに比し摩耗量が著しく少なく、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の摺動接点装置のブラシを構成している合
金材料が、摺動時にNb，In，Cd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、ブラシの接触面は常に清浄
となつて接触抵抗が低く安定するからに他ならな
い。また実施例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のCuによつて摺
動時の粘着性が高くなるのが抑えられて耐摩耗性
が向上してい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による摺動接点装置
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耐摩耗性が著しく優れ
ていて、摩耗粉の発生量が極めて少なく、ノイズ
の発生が殆んどなく、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 Table 2 above, the brushes and slip rings of the sliding contact devices of Examples 1 to 12 have a greater amount of wear than 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 simply because the alloy material that makes up the brushes of the sliding contact devices of Examples 1 to 12 generates oxides such as Nb, In, and Cd when sliding, and these oxides act as lubricants, making them resistant to wear. Improved sex and also. This is because the oxide is soft, so it is easily removed by the sliding action, and the contact surface of the brush is always clean, resulting in low and stable contact resistance. In addition, the Cu alloy material constituting the slip ring of the sliding contact devices of Examples 1 to 12 suppresses the increase in stickiness during sliding and improves wear resistance. None other than that. (Effects of the Invention) As detailed above, the sliding contact device according to the present invention has significantly superior wear resistance of the brush and commutator or slip ring compared to conventional sliding contact devices, and generates extremely little wear powder. Since the contact resistance is low and stable, it can be said to be an innovative device that can replace conventional sliding contact devices.
Claims (1)
％、Pd20〜40重量％のAu−Ag−Pdが95〜99.5重
量％及び残部がNb，In及びCdの少なくとも一種
を合計で0.5〜５重量％から成る合金材料にて構
成したブラシと、Ag−Cu3〜12重量％又はAg−
Cu3〜12重量％−Cd5重量％以下の合金材料にて
構成したコンミテータ又はスリツプリングとを組
み合わせて成る摺動接点装置。1 Composition ratio of 30 to 50% by weight of Au, 20 to 40% by weight of Ag, 20 to 40% by weight of Pd, 95 to 99.5% by weight of Au-Ag-Pd, and the balance of at least one of Nb, In, and Cd, totaling 0.5 to 5%. A brush composed of an alloy material consisting of 3% to 12% by weight of Ag-Cu or Ag-
A sliding contact device consisting of a commutator or slip ring made of an alloy material containing 3 to 12% by weight of Cu and 5% by weight of Cd or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59090767A JPS60234939A (en) | 1984-05-07 | 1984-05-07 | Sliding contact device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59090767A JPS60234939A (en) | 1984-05-07 | 1984-05-07 | Sliding contact device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60234939A JPS60234939A (en) | 1985-11-21 |
| JPH057807B2 true JPH057807B2 (en) | 1993-01-29 |
Family
ID=14007755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59090767A Granted JPS60234939A (en) | 1984-05-07 | 1984-05-07 | Sliding contact device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60234939A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4467635B1 (en) * | 2009-05-28 | 2010-05-26 | Ｔａｎａｋａホールディングス株式会社 | Sliding contact material |
-
1984
- 1984-05-07 JP JP59090767A patent/JPS60234939A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60234939A (en) | 1985-11-21 |