JPH06275174A - Switching device - Google Patents
Switching deviceInfo
- Publication number
- JPH06275174A JPH06275174A JP6152293A JP6152293A JPH06275174A JP H06275174 A JPH06275174 A JP H06275174A JP 6152293 A JP6152293 A JP 6152293A JP 6152293 A JP6152293 A JP 6152293A JP H06275174 A JPH06275174 A JP H06275174A
- Authority
- JP
- Japan
- Prior art keywords
- tin layer
- sliding
- layer
- hard carbon
- coated
- 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.)
- Pending
Links
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、遮断器または断路器
等の開閉装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switchgear such as a circuit breaker or a disconnector.
【０００２】[0002]
【従来の技術】開閉装置の操作機構部を図４に示す。す
なわち、この開閉装置の操作機構部は、遮断部１７と、
中間部が補助軸１６に軸支されて一端部を遮断部１７に
連結し、他端部にローラ１５を設けたレバー１４と、操
作軸１１に結合されてレバー１４が回動するように回動
によりローラ１５を押動するとともに回動部にローラ１
２を有するカム９と、操作軸１１に連結されたばね受け
部材１９を回動付勢するばね１３と、中間部がフック軸
２０により軸支されてカム９の回動を規制するようにロ
ーラ１２に一端面が突き当たるフック８と、このフック
８の回動を規制するようにフック８の他端側部に摺動自
在に係止する断面半月状の鎖錠ピン１０と、この鎖錠ピ
ン１０のレバー部１０Ａを駆動するソレノイド１８とを
備えている。2. Description of the Related Art FIG. 4 shows an operating mechanism portion of a switchgear. That is, the operation mechanism section of the opening / closing device includes the blocking section 17,
The intermediate part is pivotally supported by the auxiliary shaft 16, one end of which is connected to the blocking part 17, and the other end of which is provided with the roller 15, and the lever 14 which is coupled to the operation shaft 11 so that the lever 14 rotates. The roller 15 is pushed by the movement and the roller 1 is attached to the rotating portion.
2, a spring 9 for urging the spring receiving member 19 connected to the operating shaft 11 to rotate, and a roller 12 so that the middle part is pivotally supported by the hook shaft 20 to restrict the rotation of the cam 9. A hook 8 whose one end surface abuts on the lock 8, a locking pin 10 having a half-moon-shaped cross section slidably locked to the other end of the hook 8 so as to restrict the rotation of the hook 8, and the locking pin 10 And a solenoid 18 for driving the lever portion 10A.
【０００３】この操作機構部の動作について説明する。
すなわち、ばね１３により発生する操作軸１１のまわり
のトルクは操作軸１１に剛結されたカム９に設けられた
ローラ１２がフック８に止められることにより保持され
る。これによりフック８に発生するトルクは半月状の断
面をもつ鎖錠ピン１０により保持される。操作時にはソ
レノイド１８によりレバー部１０Ａが突き上げられ、鎖
錠ピン１０が回動し、フック８が解放され、カム９が操
作軸１１を中心に時計方向に回転する。この際カム９の
側面によりローラ１５が押されレバー１４が補助軸１６
を中心に反時計方向に回転し、遮断部１７が駆動され
る。The operation of this operating mechanism will be described.
That is, the torque generated by the spring 13 around the operation shaft 11 is held by the roller 12 provided on the cam 9 rigidly connected to the operation shaft 11 being stopped by the hook 8. Due to this, the torque generated in the hook 8 is held by the locking pin 10 having a half-moon shaped cross section. At the time of operation, the lever portion 10A is pushed up by the solenoid 18, the locking pin 10 rotates, the hook 8 is released, and the cam 9 rotates clockwise around the operation shaft 11. At this time, the roller 15 is pushed by the side surface of the cam 9 and the lever 14 is moved to the auxiliary shaft 16
It rotates in the counterclockwise direction about the axis and drives the blocking unit 17.
【０００４】このように、ばね１３の強大な力を最終的
には鎖錠ピン１０により保持する構造となっている。と
ころが、操作時に鎖錠ピン１０に与えられる力は微弱な
ものであるので、長期間放置後には鎖錠ピン１０に潤滑
材として塗布されたグリスが固着して操作不能になるお
それがあった。Thus, the structure is such that the strong force of the spring 13 is finally held by the locking pin 10. However, since the force applied to the lock pin 10 during the operation is weak, there is a possibility that the grease applied as the lubricant to the lock pin 10 may adhere to the lock pin 10 after being left for a long period of time to make the operation impossible.
【０００５】一方、グリス補充等のメンテナンスの省力
化の意味もあり、同部分をグリスレス化することが考え
られた。このグリスレス化にあたり、図に示す鎖錠ピン
１０とフック８の表面に耐食性および強力な耐摩耗性能
をもつTiN 層をコーティングした。図５にTiN 層５の断
面を示す。６は鎖錠ピン１０等の母材である。On the other hand, there is also a meaning of labor saving in maintenance such as replenishment of grease, and it has been considered to make the same portion greaseless. In this greaseless process, the surface of the lock pin 10 and the hook 8 shown in the figure was coated with a TiN layer having corrosion resistance and strong abrasion resistance. FIG. 5 shows a cross section of the TiN layer 5. Reference numeral 6 is a base material such as a lock pin 10.
【０００６】[0006]
【発明が解決しようとする課題】しかし、この開閉装置
は、TiN 層の摩擦係数が大きく、このため鎖錠ピン１０
を回転させる操作力が大きくなるという不都合があっ
た。したがって、この発明の目的は、摺動部分の耐食性
および耐摩耗性に優れ、しかも摩擦係数が低い開閉装置
を提供することである。However, in this switchgear, the friction coefficient of the TiN layer is large, and therefore the locking pin 10 is used.
There is a disadvantage that the operating force for rotating the is increased. Therefore, an object of the present invention is to provide a switchgear having excellent corrosion resistance and wear resistance of a sliding portion and having a low friction coefficient.
【０００７】[0007]
【課題を解決するための手段】この発明の開閉装置は、
一対の相摺動する部材の摺動部分の表面に、TiN 層をコ
ーティングし、さらにこのTiN 層の表面に非晶質透明硬
質カーボン層をコーティングしていることを特徴とする
ものである。The opening / closing device of the present invention comprises:
The surface of the sliding portion of the pair of sliding members is coated with a TiN layer, and the surface of the TiN layer is further coated with an amorphous transparent hard carbon layer.
【０００８】[0008]
【作用】この発明の構成によれば、摺動部分の表面にTi
N 層をコーティングし、さらにTiN 層の表面に非晶質透
明硬質カーボン層をコーティングしたため、非晶質透明
硬質カーボン層はTiN 層に比較して摩擦係数が小さいの
で、摺動部分の摩擦係数をより一層低下することがで
き、このため摺動抵抗が小さくなるので操作力等を低減
することができる。さらに耐食性のほかTiN 層単独のコ
ーティングよりも耐摩耗性が向上する。According to the structure of the present invention, Ti is formed on the surface of the sliding portion.
Since the N layer was coated and the surface of the TiN layer was coated with the amorphous transparent hard carbon layer, the amorphous transparent hard carbon layer has a smaller friction coefficient than the TiN layer, so Since the sliding resistance can be further reduced and the sliding resistance can be reduced, the operating force and the like can be reduced. Furthermore, in addition to corrosion resistance, it also has better wear resistance than the coating of the TiN layer alone.
【０００９】[0009]
【実施例】この発明の一実施例を図１ないし図３により
説明する。すなわち、この開閉装置は、図１に示すよう
に一対の相摺動する部材６の摺動部分の表面に、TiN 層
５をコーティングし、さらにこのTiN 層５の表面に非晶
質透明硬質カーボン層４をコーティングしている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. That is, in this switchgear, as shown in FIG. 1, the surface of the sliding portion of the pair of sliding members 6 is coated with a TiN layer 5, and the surface of the TiN layer 5 is further coated with an amorphous transparent hard carbon. Layer 4 is coated.
【００１０】実施例では、図１の部材６として、図２に
示すように図４の機構部のうちの鎖錠ピン１０とフック
８を適用し、その摺動部分の表面に形成している。図３
は部材６として炭素工具鋼の表面にTiN 層５のみ（従来
例に相当）、またはこの実施例に相当するTiN 層５に非
晶質透明硬質カーボン層４を積層した例の摺動試験の結
果であり、摺動部分の摺動距離に対する摩擦係数の関係
図である。グラフ中、Ｑ1 はTiN 層５のみの従来例の場
合、Ｑ2 はTiN 層５に非晶質透明硬質カーボン層４を施
したこの実施例の場合である。この図から明らかなよう
に、従来例Ｑ1 は実施例Ｑ2 よりも摩擦係数が高く、し
かも従来例Ｑ1 では約１ｋｍ程度の摺動距離を越えると
摩擦係数が急激に高くなるのに対して、この実施例では
約３ｋｍ程度の摺動距離を越えても摩擦係数が変化しな
いことがわかる。したがって、TiN 層５の単独のコーテ
ィングよりもこの実施例のようにTiN 層５＋非晶質透明
硬質カーボン層４のコーティングの方が、摩擦係数が低
く、耐摩耗性が優れていることがわかる。これにより、
操作力が低減できるとともに摺動部分のグリスレスでの
性能を向上することができる。In the embodiment, as the member 6 of FIG. 1, the locking pin 10 and the hook 8 of the mechanism portion of FIG. 4 are applied as shown in FIG. 2 and are formed on the surface of the sliding portion. . Figure 3
Is the result of the sliding test of the TiN layer 5 alone (corresponding to the conventional example) on the surface of the carbon tool steel as the member 6 or the example in which the amorphous transparent hard carbon layer 4 is laminated on the TiN layer 5 corresponding to this example. FIG. 4 is a relationship diagram of a friction coefficient with respect to a sliding distance of a sliding portion. In the graph, Q 1 is the case of the conventional example having only the TiN layer 5, and Q 2 is the case of this example in which the TiN layer 5 is provided with the amorphous transparent hard carbon layer 4. As is apparent from this figure, the conventional example Q 1 Example Q 2 higher coefficient of friction than, yet while the friction coefficient exceeds the sliding distance of the conventional example Q about 1, about 1km is rapidly increased Thus, in this example, it is understood that the friction coefficient does not change even when the sliding distance exceeds about 3 km. Therefore, it can be seen that the coating of the TiN layer 5 + the amorphous transparent hard carbon layer 4 as in this example has a lower friction coefficient and excellent wear resistance than the coating of the TiN layer 5 alone. This allows
The operation force can be reduced, and the greaseless performance of the sliding portion can be improved.
【００１１】なお、前記実施例は、TiN 層５と非晶質透
明硬質カーボン層４とをコーティングした部分が、鎖錠
ピン１０とフック８との摺動部分であったが、開閉装置
のその他の摺動部分にも同様に適用することができる。In the above embodiment, the portion coated with the TiN layer 5 and the amorphous transparent hard carbon layer 4 is the sliding portion between the locking pin 10 and the hook 8. The same can be applied to the sliding portion of.
【００１２】[0012]
【発明の効果】この発明の開閉装置は、摺動部分の表面
にTiN 層をコーティングし、さらにTiN 層の表面に非晶
質透明硬質カーボン層をコーティングしたため、非晶質
透明硬質カーボン層はTiN 層に比較して摩擦係数が小さ
いので、摺動部分の摩擦係数をより一層低下することが
でき、このため摺動抵抗が小さくなるので操作力等を低
減することができる。さらに耐食性のほかTiN 層単独の
コーティングよりも耐摩耗性が向上するという効果があ
る。EFFECTS OF THE INVENTION Since the switchgear of the present invention coats the TiN layer on the surface of the sliding portion and the amorphous transparent hard carbon layer on the surface of the TiN layer, the amorphous transparent hard carbon layer is made of TiN. Since the coefficient of friction is smaller than that of the layer, the coefficient of friction of the sliding portion can be further reduced, and thus the sliding resistance is reduced, so that the operating force and the like can be reduced. In addition to corrosion resistance, it also has the effect of improving wear resistance as compared to coating with a TiN layer alone.
【図面の簡単な説明】[Brief description of drawings]
【図１】この発明の一実施例の拡大部分断面図である。FIG. 1 is an enlarged partial sectional view of an embodiment of the present invention.
【図２】開閉装置の操作部の摺動部分の部分斜視図であ
る。FIG. 2 is a partial perspective view of a sliding portion of an operation unit of the opening / closing device.
【図３】摺動部分の摺動距離に対する摩擦係数の関係図
である。FIG. 3 is a relationship diagram of a friction coefficient with respect to a sliding distance of a sliding portion.
【図４】開閉装置の操作機構部の概略図である。FIG. 4 is a schematic view of an operation mechanism section of the opening / closing device.
【図５】従来例の摺動部構造の拡大部分断面図である。FIG. 5 is an enlarged partial sectional view of a conventional sliding portion structure.
４ 非晶質透明硬質カーボン層 ５ TiN 層 ６ 部材 4 Amorphous transparent hard carbon layer 5 TiN layer 6 Member
Claims (1)
に、TiN 層をコーティングし、さらにこのTiN 層の表面
に非晶質透明硬質カーボン層をコーティングしているこ
とを特徴とする開閉装置。1. A TiN layer is coated on the surfaces of the sliding portions of a pair of sliding members, and the surface of the TiN layer is further coated with an amorphous transparent hard carbon layer. Switchgear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6152293A JPH06275174A (en) | 1993-03-22 | 1993-03-22 | Switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6152293A JPH06275174A (en) | 1993-03-22 | 1993-03-22 | Switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06275174A true JPH06275174A (en) | 1994-09-30 |
Family
ID=13173517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6152293A Pending JPH06275174A (en) | 1993-03-22 | 1993-03-22 | Switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06275174A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7344760B1 (en) * | 2003-09-12 | 2008-03-18 | The United States Of America As Represented By The Secretary Of The Navy | Wear-resistant electrically conductive body |
| JP2008277014A (en) * | 2007-04-26 | 2008-11-13 | Toshiba Corp | Gas-blast circuit breaker and its manufacturing method |
-
1993
- 1993-03-22 JP JP6152293A patent/JPH06275174A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7344760B1 (en) * | 2003-09-12 | 2008-03-18 | The United States Of America As Represented By The Secretary Of The Navy | Wear-resistant electrically conductive body |
| JP2008277014A (en) * | 2007-04-26 | 2008-11-13 | Toshiba Corp | Gas-blast circuit breaker and its manufacturing method |
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