JPH0354806B2 - - Google Patents
Info
- Publication number
- JPH0354806B2 JPH0354806B2 JP22789483A JP22789483A JPH0354806B2 JP H0354806 B2 JPH0354806 B2 JP H0354806B2 JP 22789483 A JP22789483 A JP 22789483A JP 22789483 A JP22789483 A JP 22789483A JP H0354806 B2 JPH0354806 B2 JP H0354806B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- brush
- sliding
- alloy material
- 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
Links
- 239000000956 alloy Substances 0.000 claims description 16
- 229910017944 Ag—Cu Inorganic materials 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 5
- 229910052716 thallium Inorganic materials 0.000 claims description 4
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Contacts (AREA)
Description
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
の材料の改良に関する。
従来の摺動接点装置は、Au60.5〜64.5重量％、
Ag27〜31重量％、Cu6.5〜10.5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
リングとを組合せて成るものである。
ところで、この摺動接点装置のブラシは、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、コンミテータ又はスリツプリングは、
Ag−Cu0.5〜15重量％の合金材料により構成さ
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。
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。
本発明の摺動接点装置は、組成比でAu60.5〜
64.5重量％、Ag27〜31重量％、Cu6.5〜10.5重量
％のAu−Ag−Cuが95〜99.5重量％及び残部が
Ｂ、Si、Ge及びTlの少なくとも１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、ブラシを組成
比でAu60.5〜64.5重量％、Ag27〜31重量％、
Cu6.5〜10重量％のAu−Ag−Cuが95〜99.5重量
％及び残部がＢ、Si、Ge及びTlの少なくとも１
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−Cu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、Cuの含有量は、前記従
来の合金材料の組成比の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
との摺動時の粘着性を抑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、耐摩耗性が劣下するものである。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。
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例の合金材料により成る厚
さ0.5mmの板材を打抜いて直径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−２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
回転数： 1000回転／分
周速度： 120〜130m／min
接触力： 100ｇ
摺動時間： ７時間
The present invention relates to a sliding contact device, and particularly to improvements in the materials of the brush, commutator, or slip ring constituting the sliding contact device. Conventional sliding contact devices are made of Au60.5~64.5% by weight,
It is a combination of a brush made of an alloy material containing 27-31% Ag and 6.5-10.5% Cu, and a commutator or slip ring made of an alloy material containing 0.5-15% Ag-Cd. be. By the way, the brush of this sliding contact device has poor abrasion resistance when sliding with a commutator or a slip ring, and tends to generate abrasion powder, causing noise. On the other hand, a commutator or slip ring is
It was composed of an alloy material containing 0.5 to 15% by weight of Ag-Cu, and had high stickiness and poor abrasion resistance when sliding with a brush. The present invention has been made to eliminate such drawbacks, and aims to provide a sliding contact device in which the wear resistance of the brush is improved and the wear resistance of the commutator or slip ring is improved. . The sliding contact device of the present invention has a composition ratio of Au60.5~
64.5% by weight, 27-31% by weight of Ag, 6.5-10.5% by weight of Au-Ag-Cu, 95-99.5% by weight, and the balance is at least one of B, Si, Ge, and Tl, totaling 0.5%.
A combination of a brush made of an alloy material containing up to 5% by weight and a commutator or slip ring made of an alloy material of 3 to 12% by weight of Ag-Cu or 3 to 12% by weight of Ag-Cu-5% by weight of Cd. It consists of In the sliding contact device of the present invention, the composition ratio of the brush is 60.5 to 64.5% by weight of Au, 27 to 31% by weight of Ag,
6.5 to 10% by weight of Cu, 95 to 99.5% by weight of Au-Ag-Cu, and the balance being at least one of B, Si, Ge, and Tl.
The reason why the seeds were made of an alloy material consisting of a total of 0.5 to 5% by weight was to generate an appropriate amount of oxides that act as a lubricant in order to improve the wear resistance of the Au-Ag-Cu 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. Furthermore, by setting the content of Au, Ag, and Cu within a range that does not change the composition ratio of the conventional alloy material, the characteristics of the conventional alloy material can be exhibited without being impaired. . Commutator or slip spring, Ag-
The reason why it is made of an alloy material containing less than 3 to 12 weight % Cu or 3 to 12 weight % Ag-Cu and 5 weight % Cd is to suppress the stickiness when sliding with the brush and improve wear resistance. If the Cd content is less than 3% by weight, the effect cannot be obtained, and if it exceeds 12% by weight, the amount of oxide generated during sliding becomes too large, resulting in high contact resistance and instability. If it exceeds 5% by weight, when it becomes oxidized Cd, the 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. 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 to a length of 8 mm, and two wires were placed in parallel, with one end having a width of 10 mm and a length of 8 mm. 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 right column of Table 1 below. Therefore, a sliding contact device was made by combining these brushes and slip rings, respectively.
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.The wear amount and contact resistance of the brush and slip ring were measured, and the results are shown in Table 2 below. We obtained the results shown below. Test conditions Current: 0.6A Voltage: 12V Load: Resistance load Rotation speed: 1000 rotations/Divide speed: 120-130m/min Contact force: 100g Sliding time: 7 hours
【表】【table】
【表】【table】
【表】
上記の表−２で明らかなように実施例１〜16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
１〜16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Ｂ、Si、Ge、Tl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１〜16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。
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
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 16 have a greater amount of wear than the brushes and slip rings of the sliding contacts 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 constituting the brushes of the sliding contact devices of Examples 1 to 16 generates oxides such as B, Si, Ge, Tl, etc. when sliding, and these oxides act as lubricants. This is because the wear resistance is improved, and since the oxide is soft, it is easily removed by 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 rings of the sliding contact devices of Examples 1 to 16 suppresses the increase in stickiness during sliding and improves wear resistance. None other than that. As detailed above, the sliding contact device of the present invention has significantly superior wear resistance of the brush, commutator, and slip ring compared to conventional sliding contact devices.
It is said to be an epoch-making product that can replace conventional sliding contact devices because it generates extremely little wear powder, almost no noise, and has low and stable contact resistance. I can do it.
Claims (1)
量％、Cu6.5〜10.5重量％のAu−Ag−Cuが95〜
99.5重量％及び残部がＢ、Si、Ge及びTlの少な
くとも１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
ングとを組合わせて成る摺動接点装置。1 Au-Ag-Cu with a composition ratio of 60.5 to 64.5% by weight, 27 to 31% by weight of Ag, and 6.5 to 10.5% by weight of Cu is 95 to 95% by weight.
A brush made of an alloy material consisting of 99.5% by weight and the balance of at least one of B, Si, Ge, and Tl in a total of 0.5 to 5% by weight, and 3 to 12% by weight of Ag-Cu or 3 to 12% by weight of Ag-Cu. %-Cd A sliding contact device combined with a commutator or slip ring made of an alloy material containing 5% by weight or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22789483A JPS60121622A (en) | 1983-12-02 | 1983-12-02 | Slide contact device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22789483A JPS60121622A (en) | 1983-12-02 | 1983-12-02 | Slide contact device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60121622A JPS60121622A (en) | 1985-06-29 |
| JPH0354806B2 true JPH0354806B2 (en) | 1991-08-21 |
Family
ID=16867979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22789483A Granted JPS60121622A (en) | 1983-12-02 | 1983-12-02 | Slide contact device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60121622A (en) |
-
1983
- 1983-12-02 JP JP22789483A patent/JPS60121622A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60121622A (en) | 1985-06-29 |