JPH0332874B2 - - Google Patents
Info
- Publication number
- JPH0332874B2 JPH0332874B2 JP20046083A JP20046083A JPH0332874B2 JP H0332874 B2 JPH0332874 B2 JP H0332874B2 JP 20046083 A JP20046083 A JP 20046083A JP 20046083 A JP20046083 A JP 20046083A JP H0332874 B2 JPH0332874 B2 JP H0332874B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- alloy material
- brush
- sliding
- resistance
- 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 17
- 229910017944 Ag—Cu Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 229910052716 thallium Inorganic materials 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910052793 cadmium 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
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Motor Or Generator Current Collectors (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％、
Ag5.5〜9.5重量％、Cu28〜32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
リングとを組合わ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、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、摩耗粉が生じ易く接触抵抗が不安定とな
つていた。
一方、コンミテータ又はスリツプリングは、
Ag−Cd0.5〜15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、ブラシの耐摩耗性及び接触抵抗特性を
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％、Ag5.5〜9.5重量％、Cu28〜32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％、Ag5.5〜9.5重量％、
Cu28〜32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
接触抵抗特性及び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、5.0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：直流0.6A
電 圧：12V
負 荷：抵抗負荷
回転数：1000回転／分
周 速：130〜120ｍ／min
接触圧：100ｇ
接触時間：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,
A brush made of an alloy material containing 5.5 to 9.5% by weight of Ag and 28 to 32% by weight of Cu, and a commutator or slip ring made of an alloy material containing 0.5 to 15% by weight of Ag-Cd. It is. 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, easily generates wear particles, and the contact resistance becomes unstable. I was getting used to it. 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-Cd, and had high stickiness and poor abrasion resistance when sliding with a brush. The present invention has been made in order to eliminate such drawbacks, and it is an object of the present invention to provide a sliding contact device that improves the abrasion resistance and contact resistance characteristics of the brush and improves the abrasion resistance of the commutator or slip ring. It is something to do. The sliding contact device of the present invention has a composition ratio of Au60.5~
64.5% by weight, Ag5.5~9.5% by weight, Cu28~32% by weight
95 to 99.5% by weight of Au-Ag-Cu and the balance is B,
At least one of Si, Ge and Tl in total of 0.5 to 5
A brush made of an alloy material consisting of % by weight;
Ag-Cu3~12wt% or Ag-Cu3~12wt%-
It is combined with a commutator or slip ring made of an alloy material containing 5% by weight of Cd or less. 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, 5.5 to 9.5% by weight of Ag,
Cu28-32wt% Au-Ag-Cu95-99.5wt%
The reason why the remaining part is composed of an alloy material containing a total of 0.5 to 5% by weight of at least one of B, Si, Ge, and Tl is because of the contact resistance characteristics and wear resistance of the Au-Ag-Cu alloy material. This is to generate an appropriate amount of oxides that act as lubricants to improve properties.If the amount is less than 0.5% by weight, the amount of oxides generated is too small to be effective as a lubricant, and if it exceeds 5.0% by weight, the oxides will The amount of contact increases, the contact resistance increases, and it becomes unstable. 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 content of Cd 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 into lengths of 8 mm, and two wire rods 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: DC 0.6A Voltage: 12V Load: Resistance load Rotation speed: 1000 rotations/divided speed: 130 to 120m/min Contact pressure: 100g Contact time: 7 hours
【表】【table】
【表】【table】
【表】
上記の表−２で明らかなように実施例１〜15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、接触抵抗は一段
と低く安定していることが判る。これはひとえに
実施例１〜15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、接触抵抗が一段と低くなるから
に他ならない。また実施例１〜15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
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、また接触抵
抗についても一段と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 15 have a higher 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 significantly lower and the contact resistance is even lower and more stable. This is simply because the alloy material constituting the brushes of the sliding contact devices of Examples 1 to 15 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 the contact resistance is further reduced. In addition, the Cu alloy material constituting the slip ring of the sliding contact devices of Examples 1 to 15
This is because the adhesiveness during sliding is suppressed and the abrasion resistance is improved. As detailed above, the sliding contact device of the present invention has significantly superior wear resistance of the brush and commutator or slip ring compared to conventional sliding contact devices, generates extremely little wear powder, and has contact resistance. It is also much lower and more stable, so it can be said to be an epoch-making device that can replace conventional sliding contact devices.
Claims (1)
量％、Cu28〜32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, 5.5 to 9.5% by weight of Ag, and 28 to 32% by weight of Cu is 95 to 99.5%.
A brush made of an alloy material in which the balance is a total of 0.5 to 5% by weight of at least one of B, Si, Ge, and Tl, and 3 to 12% by weight of Ag-Cu or 3 to 12% by weight of Ag-Cu. - A sliding contact device consisting of a commutator or slip ring made of an alloy material containing 5% by weight or less of Cd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20046083A JPS6093788A (en) | 1983-10-26 | 1983-10-26 | Slide contact unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20046083A JPS6093788A (en) | 1983-10-26 | 1983-10-26 | Slide contact unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6093788A JPS6093788A (en) | 1985-05-25 |
| JPH0332874B2 true JPH0332874B2 (en) | 1991-05-15 |
Family
ID=16424669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20046083A Granted JPS6093788A (en) | 1983-10-26 | 1983-10-26 | Slide contact unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6093788A (en) |
-
1983
- 1983-10-26 JP JP20046083A patent/JPS6093788A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6093788A (en) | 1985-05-25 |