JPH056769B2 - - Google Patents
Info
- Publication number
- JPH056769B2 JPH056769B2 JP16432583A JP16432583A JPH056769B2 JP H056769 B2 JPH056769 B2 JP H056769B2 JP 16432583 A JP16432583 A JP 16432583A JP 16432583 A JP16432583 A JP 16432583A JP H056769 B2 JPH056769 B2 JP H056769B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- alloy material
- resistance
- brush
- 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
- 239000000956 alloy Substances 0.000 claims description 16
- 229910017944 Ag—Cu Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910017518 Cu Zn Inorganic materials 0.000 description 3
- 229910017752 Cu-Zn Inorganic materials 0.000 description 3
- 229910017943 Cu—Zn Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Contacts (AREA)
Description
本発明は摺動接点装置に係り、特にそれを構成
するブラシとコミユテーター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、Au8〜12重量%、Pt8
〜12重量%、Pd33〜37重量%、Ag28〜32重量
%、Cu12〜16重量%、Zn0.1〜2重量%の合金材
料にて構成したブラシと、Ag−Cd0.5〜15重量%
の合金材料にて構したコミユテーター又はスリツ
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、コミユ
テーター又はスリツプリングとの摺動時、摩耗粉
が生じ易く接触抵抗が不安定となつていた。
一方、コミユテーター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性を向
上させ、コミユテーター又はスプリングの耐摩耗
性を向上させた摺動接点を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Au8〜12重
量%、Pt8〜12重量%、Pd33〜37重量%、Ag28
〜32重量%、Cu12〜16重量%、Zn0.1〜2重量%
のAu−Pt−Pd−Ag−Cu−Znが95〜99.5重量%
及び残部がW、V及びTaの少なくとも一種を合
計で、0.5〜5.0重量%の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
コミユテーター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、組成比でAu8
〜12重量%、Pt8〜12重量%、Pd33〜37重量%、
Ag28〜32重量%、Cu12〜16重量%、Zn0.1〜2
重量%のAu−Pt−Pd−Ag−Cu−Znが95〜99.5
重量%及び残部がW、V及びTaの少なくとも一
種を合計で0.5〜5.0重量%の合金材料にて構成し
た理由は、前記Au−Pt−Pd−Ag−Cu−Znの合
金材料の接触抵抗特性及び耐摩耗性を向上すべく
耐凝着性を向上させる為で、W、V及びTaの少
なくとも一種合計で0.5重量%未満ではその効果
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。
コミユテーター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るて接触抵抗が高く
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。
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る成る厚
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 that constitute the sliding contact device. Conventional sliding contact device is made of Au8~12wt%, Pt8
A brush composed of an alloy material of ~12% by weight, Pd33-37% by weight, Ag28-32% by weight, Cu12-16% by weight, Zn0.1-2% by weight, and Ag-Cd0.5-15% by weight.
It is composed of a commutator or a slip ring made of an alloy material. By the way, since the brush of this sliding contact device is made of the above-mentioned alloy material, when it slides with the commutator or the slip ring, abrasion powder is likely to be generated, resulting in unstable contact resistance. On the other hand, the commutator or slip spring 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 aims to provide a sliding contact device in which the wear resistance and contact resistance of the brush are improved, and the wear resistance of the commutator or spring is improved. It is something to do. The sliding contact device of the present invention has a composition ratio of Au8 to 12% by weight, Pt8 to 12% by weight, Pd33 to 37% by weight, Ag28
~32wt%, Cu12~16wt%, Zn0.1~2wt%
Au-Pt-Pd-Ag-Cu-Zn is 95-99.5% by weight
and the balance is composed of an alloy material containing at least one of W, V and Ta in a total amount of 0.5 to 5.0% by weight, and Ag-Cu3 to 12% by weight or Ag-Cu3 to 12
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 is Au8
~12wt%, Pt8~12wt%, Pd33~37wt%,
Ag28~32wt%, Cu12~16wt%, Zn0.1~2
Weight% Au-Pt-Pd-Ag-Cu-Zn is 95~99.5
The reason why the alloy material is composed of an alloy material in which the weight percent and the balance is at least one of W, V, and Ta in a total of 0.5 to 5.0 weight percent is because of the contact resistance characteristics of the Au-Pt-Pd-Ag-Cu-Zn alloy material. This is to improve adhesion resistance in order to improve abrasion resistance. If the total amount of at least one of W, V and Ta is less than 0.5% by weight, the effect cannot be achieved, and if it exceeds 5% by weight, oxides will be generated. The amount of contact increases, the contact resistance increases, and furthermore, it becomes unstable. 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 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 will be too large, resulting in high contact resistance and instability. If it exceeds % 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. 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 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: 130-120m/min Contact pressure: 100g Contact time: 7 hours
【表】【table】
【表】
上記の表−2で明らかなように実施例1〜10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1〜10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W、V、Ta等により
摺動時の軟化を抑制され耐凝着性が向上し、その
結果、耐摩耗性が向上するからに他ならない。ま
た実施例1〜10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ミユテーター
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 10 have a higher 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 significantly lower and the contact resistance is even lower and more stable. This is because the alloy material constituting the brush of the sliding contact devices of Examples 1 to 10 is prevented from softening during sliding by W, V, Ta, etc., and its adhesion resistance is improved. This is because the wear resistance is improved as a result. In addition, the Cu alloy material constituting the slip ring of the sliding contact devices of Examples 1 to 10 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 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)
Pd33〜37重量%、Ag28〜32重量%、Cu12〜16重
量%、Zn0.1〜2重量%のAu−Pt−Pd−Ag−Cu
−Znが95〜99.5重量%及び残部がW、V及びTa
の少なくとも一種を合計で0.5〜5.0重量%の合金
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ミユテーター又はスリツプ
リングとを組合わせて成る摺動接点装置。1 Composition ratio: Au8-12% by weight, Pt8-12% by weight,
Au-Pt-Pd-Ag-Cu with Pd33~37wt%, Ag28~32wt%, Cu12~16wt%, Zn0.1~2wt%
-Zn is 95-99.5% by weight and the balance is W, V and Ta
A brush made of an alloy material containing at least one of the following in a total amount of 0.5 to 5.0% by weight, and a commutator 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 or less. A sliding contact device consisting of a slip ring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16432583A JPS6056044A (en) | 1983-09-07 | 1983-09-07 | Sliding contact device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16432583A JPS6056044A (en) | 1983-09-07 | 1983-09-07 | Sliding contact device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6056044A JPS6056044A (en) | 1985-04-01 |
JPH056769B2 true JPH056769B2 (en) | 1993-01-27 |
Family
ID=15791013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16432583A Granted JPS6056044A (en) | 1983-09-07 | 1983-09-07 | Sliding contact device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6056044A (en) |
-
1983
- 1983-09-07 JP JP16432583A patent/JPS6056044A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6056044A (en) | 1985-04-01 |