JPH0354835B2 - - Google Patents
Info
- Publication number
- JPH0354835B2 JPH0354835B2 JP58133672A JP13367283A JPH0354835B2 JP H0354835 B2 JPH0354835 B2 JP H0354835B2 JP 58133672 A JP58133672 A JP 58133672A JP 13367283 A JP13367283 A JP 13367283A JP H0354835 B2 JPH0354835 B2 JP H0354835B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- brush
- alloy material
- sliding contact
- 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 - Lifetime
Links
- 239000000956 alloy Substances 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 5
- 229910052787 antimony Inorganic materials 0.000 claims description 4
- 229910052745 lead Inorganic materials 0.000 claims description 4
- 229910052711 selenium Inorganic materials 0.000 claims description 4
- 229910017944 Ag—Cu Inorganic materials 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 description 5
- 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
- 239000000314 lubricant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910018879 Pt—Pd Inorganic materials 0.000 description 1
- 229910052802 copper 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
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 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
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Contacts (AREA)
- 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
成するブラシとコミユテーター又はデイスクの材
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％
の合金材料にて構成したコミユテーター又はデイ
スク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
テーター又はデイスクとの摺動時、機械的、電気
的腐食により酸化物が発生する為、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デイスクは、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を
向上させ、コミユテーター又はデイスクの耐摩耗
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Sb、Te、Mo、Pb及びSeの少なくと
も一種を合計で0.5〜５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デイスクとを組み合
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Sb、Te、Mo、Pb及
びSeの少なくとも一種を合計で0.5〜５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
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、Pt、Pd、Ag、Cu、Zn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。
コミユテーター又はデイスクを、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のデイスクを
作つた。然してこれらブラシ及びデイスクを夫々
組み合わせて摺動接点装置を作り、夫々ブラシを
デイスクに接触させ、デイスクを正逆回転させて
下記の試験条件にて摺動試験を行い、ブラシ及び
デイスク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 more particularly to improvements in the materials of the brush and commutator or disk constituting 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 consists of a commutator or disk made of an alloy material. By the way, since the brush of this sliding contact device is made of the alloy material mentioned above, when it slides with the commutator or disk, oxides are generated due to mechanical and electrical corrosion, resulting in abrasion particles. The contact resistance was easily unstable. On the other hand, the commutator or disk
It was composed of an alloy material containing 0.5 to 15% by weight of 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 of the brush and improves the abrasion resistance of the commutator or disk. 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 Sb, Te, Mo, Pb and Se in a total of 0.5 to 5% by weight, and 3 to 12% by weight of Ag-Cu or Ag-
It is composed of a commutator or a disk made of an alloy material containing 3 to 12% by weight of Cu and 5% by weight of Cd. In the sliding contact device of the present invention, the composition ratio of the brush is 8 to 12% by weight of Au, 8 to 12% by weight of Pt, and 33 to 37% by weight of Pd.
Weight%, Ag28~32wt%, Cu12~16wt%,
Au-Pt-Pd-Ag-Cu-Zn with Zn0.1~2wt%
The reason why the alloy material is composed of 95 to 99.5% by weight and the balance of at least one of Sb, Te, Mo, Pb and Se in a total of 0.5 to 5% by weight is that the Au-Pt-Pd
- This is to generate an appropriate amount of oxides that act as a lubricant in order to improve the contact resistance and wear resistance of the Ag-Cu-Zn alloy material. If it is less than 0.5% by weight, the amount of oxides generated is small and it cannot be used as a lubricant. 5.
If it exceeds % by weight, the amount of oxides generated will increase, contact resistance will increase, and furthermore, it will become unstable. In addition, the content of Au, Pt, Pd, Ag, Cu, and Zn is
By keeping the composition ratio of the conventional alloy material within a range where no change is made, the characteristics of the conventional alloy material can be exhibited without being impaired. Commutator or disk, Ag-Cu3~
The reason why it is made of an alloy material of 12% by weight or less than 12% by weight of Ag-Cu and 12% by weight and 5% by weight of Cd is to suppress the stickiness when sliding with the brush and improve wear resistance. If the amount 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. %, when this becomes oxidized Cd, the contact resistance increases,
Abrasion resistance deteriorates. Therefore, the content of Cu is 3 to 12% by weight, and the content of Cd is 5% by weight.
It was designed not to exceed. Next, specific embodiments and conventional sliding contact devices 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, disks 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 disks, each brush was brought into contact with the disk, and a sliding test was conducted under the following test conditions by rotating the disks in forward and reverse directions to determine the amount of wear on the brushes and disks. When the contact resistance was measured, the results shown in Table 2 below were obtained. Test conditions Current: DC 0.6A Voltage: 12V Load: Resistance load Rotation speed: 1000 rotations/Division 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デイスクは、夫々従来例
１、２の摺動接点のブラシとデイスクに比し摩耗
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Sb、Te、Mo、Pb、Se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為、摺動作用に
より容易に除去される為、ブラシの接触面は常に
清浄となつて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の摺動接点装置のデ
イスク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
又はデイスク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 disks of the sliding contact devices of Examples 1 to 15 have a significantly greater amount of wear than the brushes and disks of the sliding contact devices of Conventional Examples 1 and 2, respectively. It can be seen that the contact resistance is lower and more stable. This is just Examples 1 to 15.
The alloy material that makes up the brush of the sliding contact device generates oxides such as Sb, Te, Mo, Pb, and Se when sliding, and these oxides act as a lubricant, improving wear resistance. Moreover, since the oxide is soft, it is easily removed by the sliding action, so the contact surface of the brush is always clean and the contact resistance is further reduced. In addition, the Cu alloy material constituting the disks of the sliding contact devices of Examples 1 to 15 suppresses the increase in stickiness during sliding and improves wear resistance. No. As detailed above, the sliding contact device of the present invention has significantly superior wear resistance of the brush and commutator or disk compared to conventional sliding contact devices, generates extremely little wear powder, and has low contact resistance. Since the pressure is lower and more stable, 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Sb、Te、Mo、
Pb及びSeの少なくとも一種を合計で0.5〜５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
デイスクとを組み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 to 99.5% by weight and the balance is Sb, Te, Mo,
A brush composed of an alloy material containing at least one of Pb and Se in a total of 0.5 to 5% by weight, and Ag-Cu3
~12 wt% or Ag-Cu3~12 wt%-Cd5 wt%
A sliding contact device consisting of a commutator or disk made of the following alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58133672A JPS6025173A (en) | 1983-07-22 | 1983-07-22 | Slide contact unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58133672A JPS6025173A (en) | 1983-07-22 | 1983-07-22 | Slide contact unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6025173A JPS6025173A (en) | 1985-02-07 |
| JPH0354835B2 true JPH0354835B2 (en) | 1991-08-21 |
Family
ID=15110198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58133672A Granted JPS6025173A (en) | 1983-07-22 | 1983-07-22 | Slide contact unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6025173A (en) |
-
1983
- 1983-07-22 JP JP58133672A patent/JPS6025173A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6025173A (en) | 1985-02-07 |