JPH05296213A - Hydraulic driving apparatus - Google Patents
Hydraulic driving apparatusInfo
- Publication number
- JPH05296213A JPH05296213A JP27599092A JP27599092A JPH05296213A JP H05296213 A JPH05296213 A JP H05296213A JP 27599092 A JP27599092 A JP 27599092A JP 27599092 A JP27599092 A JP 27599092A JP H05296213 A JPH05296213 A JP H05296213A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- cushion
- cushion ring
- piston
- hydraulic drive
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/222—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston with a piston extension or piston recess which throttles the main fluid outlet as the piston approaches its end position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
- H01H3/605—Mechanical arrangements for preventing or damping vibration or shock making use of a fluid damper
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、中央圧力ハウジングの
シリンダの中で摺動し、片側に常に高圧が働き、他方の
側に選択により高圧を働かせることができる差動ピスト
ンとして構成された作動ピストンを備え、シリンダの両
側が閉鎖部材の穴に接続し、閉鎖部材の穴がシリンダよ
り大きな直径に形成されてクッションリングが挿着され
ており、作動ピストンが夫々の末端位置で当該のクッシ
ョンピンをクッションリングに挿入させる、特に高電圧
遮断器のための液圧駆動装置に関する。BACKGROUND OF THE INVENTION The present invention is an actuating piston constructed as a differential piston which slides in a cylinder of a central pressure housing and is always capable of exerting high pressure on one side and optionally on the other side. A piston is provided, and both sides of the cylinder are connected to the holes of the closing member, the holes of the closing member are formed to have a diameter larger than that of the cylinder, and the cushion ring is inserted, and the working pistons have the corresponding cushion pins at their respective end positions. To a cushion ring, in particular for a hydraulic drive for high voltage circuit breakers.
【０００２】[0002]
【従来の技術】シリンダ穴と、これに続く直径がシリン
ダ穴より大きく且つ軸方向に直列の閉鎖部材の穴を製造
する際に、被加工部材の反転加工が必要で、この場合、
製造公差は必ずしも配慮されない。この製造公差は、夫
々のクッションリングと対応するクッションピンとの間
の滑合の妨げとなる。2. Description of the Related Art In manufacturing a cylinder hole and a hole of a closing member which has a diameter larger than that of the cylinder hole and which is axially in series with the cylinder hole, it is necessary to reverse the work piece.
Manufacturing tolerances are not always taken into account. This manufacturing tolerance hinders the sliding fit between each cushion ring and the corresponding cushion pin.
【０００３】[0003]
【発明が解決しようとする課題】本発明の課題は、圧力
ハウジングの反転加工によって生じる製造公差が何ら影
響しないように構造を改善することにある。SUMMARY OF THE INVENTION An object of the present invention is to improve the structure so that the manufacturing tolerance caused by the reversal processing of the pressure housing has no influence.
【０００４】[0004]
【課題を解決するための手段】この課題は、少なくとも
「オフ」位置のためのクッションリングがカラー片を有
し、このカラー片によってクッションリングが中心に位
置決めされてシリンダに係合することによって解決され
る。This problem is solved by the fact that the cushion ring for at least the "off" position has a collar piece by means of which the cushion ring is centrally located and engages the cylinder. To be done.
【０００５】当該のクッションリングのガイド保持と中
心の位置決めが、シリンダの中で行えるので、シリンダ
と隣接する閉鎖部材の穴を正確にシリンダ穴の中心に合
わせる必要がなく、シリンダの製造を簡単に行うことが
できる。Since the guide ring and the center of the cushion ring can be held in the cylinder, it is not necessary to accurately align the hole of the closing member adjacent to the cylinder with the center of the cylinder hole, which simplifies the manufacture of the cylinder. It can be carried out.
【０００６】[0006]
【作用】この発明による構成の特徴は、シリンダに通さ
れたクッションリングも可動ピストンとして組入れら
れ、外面にあふれ流路を有し、シリンダがこのあふれ流
路によって隣接の閉鎖部材の穴と連通されることにあ
る。The feature of the construction according to the present invention is that the cushion ring passed through the cylinder is also incorporated as a movable piston, and has an overflow channel on the outer surface, and the cylinder communicates with the hole of the adjacent closing member by this overflow channel. There is something to do.
【０００７】[0007]
【実施例】この発明の一実施例について詳細に説明す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail.
【０００８】圧力ハウジング１のシリンダ２の中で作動
ピストン３が摺動する。作動ピストン３はピストンロッ
ド４を介して遮断器５を操作する。作動ピストン３は底
部側のクッションピン６とピストンロッド４側のクッシ
ョンピン６ａを備えている。直径が段状に拡張する閉鎖
部材の穴７，７ａがシリンダ２の両端に夫々接続する。
閉鎖部材の穴７，７ａは圧力ハウジング１の外側に通じ
る。シリンダ２の両側はクッションリング８，８ｂで閉
鎖され、その中心空欠部は作動ピストン３の夫々のクッ
ションピン６，６ａと相互作用し、クッションピン６，
６ａと共に夫々滑合を形成する。クッションリング８，
８ｂは、軸方向に移動可能であって、一方の異なる穴が
作る段部と他方の固定ストッパ９，９ａとの間で移動す
ることができる。The working piston 3 slides in the cylinder 2 of the pressure housing 1. The working piston 3 operates the circuit breaker 5 via the piston rod 4. The working piston 3 includes a cushion pin 6 on the bottom side and a cushion pin 6a on the piston rod 4 side. Holes 7 and 7a of a closing member whose diameter expands stepwise are connected to both ends of the cylinder 2, respectively.
The holes 7, 7 a of the closure member lead to the outside of the pressure housing 1. Both sides of the cylinder 2 are closed by cushion rings 8 and 8b, the central voids of which interact with the respective cushion pins 6 and 6a of the working piston 3,
6a and the sliding contact are formed respectively. Cushion ring 8,
8b is movable in the axial direction, and can be moved between the stepped portion formed by the different holes on one side and the fixed stoppers 9, 9a on the other side.
【０００９】シリンダ２の中に突出するカラー片８ａに
よってクッションリング８は，シリンダの中で中心に位
置決めされて保持される。導路１０，１０ａは、常に高
圧蓄圧器と連通し、一方、導路１０ｂは低圧容器と連通
する。The cushion ring 8 is centrally positioned and held in the cylinder by the collar piece 8a protruding into the cylinder 2. The conduits 10 and 10a always communicate with the high pressure accumulator, while the conduit 10b communicates with the low pressure container.
【００１０】導路１０又は１０ｂはシリンダ２のピスト
ン底部端面と連通し、その通路は夫々弁１１又は１１ｂ
によって解放され又は遮断される。これらの弁は交互に
しか操作されない。すなわち、一方の弁が遮断すれば他
方の弁は通路が解放され、また、その逆である。駆動装
置は次のように動作する。The conduit 10 or 10b communicates with the bottom end surface of the piston of the cylinder 2, and the passage thereof is a valve 11 or 11b, respectively.
Released or blocked by. These valves are operated only alternately. That is, if one valve shuts off, the other valve opens the passageway, and vice versa. The drive device operates as follows.
【００１１】弁１１ｂが導路１０を遮断すれば、同時に
解放された弁１１と導路１０ｂとを経て、シリンダ２の
ピストン底部面側が低圧室と連通して圧力が緩和され
る。すなわち、作動ピストン３は、クッションピン６ａ
がクッションリング８ｂに挿入されている「オン」位置
から、クッションリング８の方向へ移動する。図示の位
置で弁１１は開放しており、作動ピストン３は末端位置
の直前で「オフ」にある。作動ピストン３のクッション
ピン６は、クッションリング８のカラー片８ａの軸方向
空欠部に進入する。When the valve 11b shuts off the conduit 10, the piston bottom surface side of the cylinder 2 communicates with the low pressure chamber via the valve 11 and the conduit 10b which are simultaneously released, and the pressure is relieved. That is, the working piston 3 has the cushion pin 6a.
Moves in the direction of the cushion ring 8 from the "on" position where the is inserted into the cushion ring 8b. In the position shown, the valve 11 is open and the working piston 3 is "off" just before the end position. The cushion pin 6 of the working piston 3 enters into the axial void portion of the collar piece 8a of the cushion ring 8.
【００１２】滑らかで整然としたクッション行程を得る
ために、クッションリング８又はそのカラー片８ａと穴
壁との間にあふれ流路８ｃを有し、あふれ流路８ｃは作
動ピストン３が押しのける流体を一定の割合で流出させ
る。In order to obtain a smooth and orderly cushion stroke, an overflow passage 8c is provided between the cushion ring 8 or its collar piece 8a and the hole wall, and the overflow passage 8c keeps the fluid displaced by the working piston 3 constant. Spill at a rate of.
【００１３】スイッチオンの場合は弁１１が遮断し、開
放された弁１１ｂを経て作動ピストン３の底部面側に高
圧が導かれる。まず、作動ピストン３は、ピストンより
大きな作用面で高圧流体に対抗するクッションリング８
によって幾らか持ち上げられ、一方、あふれ流路８ｃを
介して全ピストン底部に高圧が形成される。ピストン底
部面はピストンロッド４側の面と比較して大きいので、
作動ピストン３はシリンダ２の他端側へ、すなわちクッ
ションリング８ｂの方向に移動し、遮断器５が接続され
る。クッションリング８ｂにも同じく図示しないあふれ
流路があり、遮断のときと同様に適切なクッション行程
が実現される。When the switch is turned on, the valve 11 is closed, and high pressure is introduced to the bottom surface side of the working piston 3 through the opened valve 11b. First, the working piston 3 has a cushion ring 8 that acts against the high-pressure fluid with a larger working surface than the piston.
To some extent, while a high pressure is created at the bottom of the entire piston via the overflow channel 8c. Since the bottom surface of the piston is larger than the surface on the piston rod 4 side,
The working piston 3 moves to the other end side of the cylinder 2, that is, in the direction of the cushion ring 8b, and the circuit breaker 5 is connected. The cushion ring 8b also has an overflow channel (not shown), so that an appropriate cushion stroke can be realized as in the case of blocking.
【００１４】クッションリング８ｂは、閉鎖部材の穴７
ａでガイド保持されている。この閉鎖部材の穴７ａは、
同一の側から加工されていてシリンダ２の穴と正確に穴
の中心が合っているので、クッションリング８ｂをガイ
ド保持するのは簡単である。ところが閉鎖部材の穴７を
作製するためには反転加工が必要であったので、閉鎖部
材の穴７はシリンダ２の穴の中心と正確に一致していな
いということを考慮しなければならない。そこでクッシ
ョンリング８のガイド保持を閉鎖部材の穴７でなく、シ
リンダ２の中でカラー片８ａを用いて行うのである。The cushion ring 8b has a hole 7 in the closing member.
The guide is held by a. The hole 7a of this closing member is
Since it is machined from the same side and the center of the hole is exactly aligned with the hole of the cylinder 2, it is easy to hold the cushion ring 8b as a guide. However, it was necessary to consider that the hole 7 of the closing member does not exactly coincide with the center of the hole of the cylinder 2 because the reversing process was required to make the hole 7 of the closing member. Therefore, the guide holding of the cushion ring 8 is performed not by the hole 7 of the closing member but by using the collar piece 8a in the cylinder 2.
【００１５】[0015]
【発明の効果】以上詳述したように本発明によれば、圧
力ハウジングの反転加工によって生じる製造公差が何ら
影響しないように構造を改善した液圧駆動装置を提供す
ることができる。As described above in detail, according to the present invention, it is possible to provide a hydraulic drive device having an improved structure so that the manufacturing tolerance caused by the inversion processing of the pressure housing does not affect the manufacturing process.
【図１】オフ位置にある駆動装置の機能概略図。FIG. 1 is a functional schematic diagram of a drive device in an off position.
１…圧力ハウジング、２…シリンダ、３…作動ピスト
ン、４…ピストンロッド、５…遮断器、６，６ａ…クッ
ションピン、７，７ａ…閉鎖部材の穴、８，８ｂ…クッ
ションリング、８ａ…カラー片、９，９ａ…固定ストッ
パ、１０，１０ｂ，１０ｂ…導路、１１，１１ｂ…弁。DESCRIPTION OF SYMBOLS 1 ... Pressure housing, 2 ... Cylinder, 3 ... Working piston, 4 ... Piston rod, 5 ... Circuit breaker, 6,6a ... Cushion pin, 7,7a ... Closure member hole, 8,8b ... Cushion ring, 8a ... Collar Pieces, 9, 9a ... Fixed stoppers, 10, 10b, 10b ... Conductors, 11, 11b ... Valves.
フロントページの続き (72)発明者 ホルスト・プレットナ− ドイツ連邦共和国、6450 ハナウ 11、ボ ーゲンシュトラーセ 44Front Page Continuation (72) Inventor Horst Pretna-Germany, 6450 Hanau 11, Bogenstraße 44
Claims (2)
（２）の中で摺動し、片側に常に高圧が働き、他方の側
に選択により高圧を働かせることができる差動ピストン
として構成された作動ピストン（３）を備え、シリンダ
（２）の両側が閉鎖部材の穴（７、７ａ）に接続され、
閉鎖部材の穴（７、７ａ）はシリンダより大きな直径に
形成されてクッションリング（８、８ｂ）が挿着されて
おり、作動ピストン（３）が夫々の末端位置で当該のク
ッションピン（６、６ａ）をクッションリング（８、８
ｂ）に挿入させる、特に高電圧遮断器のための液圧駆動
装置において、少なくとも「オフ」位置のためのクッシ
ョンリング（８）がカラー片（８ａ）を有し、このカラ
ー片（８ａ）によってクッションリング（８）が中心に
位置決めされてシリンダ（２）に係合することを特徴と
する液圧駆動装置。1. An actuation arranged as a differential piston which slides in a cylinder (2) of a central pressure housing (1) and is always capable of exerting high pressure on one side and optionally on the other side. Equipped with a piston (3), both sides of the cylinder (2) being connected to holes (7, 7a) of the closure member,
The holes (7, 7a) of the closing member are formed to have a diameter larger than that of the cylinder, and the cushion rings (8, 8b) are inserted therein, and the actuating pistons (3) at the respective distal positions of the corresponding cushion pins (6, 7b). 6a) cushion ring (8, 8
In a hydraulic drive for inserting into b), in particular for high-voltage circuit breakers, the cushion ring (8) for at least the "off" position has a collar piece (8a), by means of which this collar piece (8a) Hydraulic drive characterized in that the cushion ring (8) is centrally positioned and engages the cylinder (2).
れてあふれ流路（８ｃ）を有し、シリンダ（２）がこの
あふれ流路（８ｃ）によって隣接の閉鎖部材の穴（７）
と連通し得ることを特徴とする請求項１に記載の液圧駆
動装置。2. The cushion ring (8) is movably formed and has an overflow channel (8c), by which the cylinder (2) is provided with a hole (7) in an adjacent closing member by this overflow channel (8c).
The hydraulic drive device according to claim 1, which is capable of communicating with the hydraulic drive device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9113366U DE9113366U1 (en) | 1991-10-28 | 1991-10-28 | Hydraulic drive |
| DE9113366:1 | 1991-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05296213A true JPH05296213A (en) | 1993-11-09 |
Family
ID=6872668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27599092A Pending JPH05296213A (en) | 1991-10-28 | 1992-10-14 | Hydraulic driving apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH05296213A (en) |
| DE (1) | DE9113366U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008025843A (en) * | 2006-07-22 | 2008-02-07 | Zahnradfab Friedrichshafen Ag | Differential piston |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008050674A1 (en) * | 2008-10-07 | 2010-04-08 | Abb Technology Ag | Hydromechanical spring-loaded drive |
| DE102010049137A1 (en) * | 2010-10-22 | 2012-04-26 | Abb Technology Ag | Spring-loaded drive and high-voltage circuit-breaker |
| DE102011109227B3 (en) * | 2011-08-03 | 2012-11-29 | Abb Technology Ag | Differential cylinder for a hydro-mechanical drive for electric circuit breakers |
| DE102011109210B3 (en) * | 2011-08-03 | 2012-10-11 | Abb Technology Ag | Differential cylinder for a hydro-mechanical drive for electric circuit breakers |
| DE102012011130A1 (en) | 2012-06-05 | 2013-12-05 | Abb Technology Ag | Working cylinder for driving an electric circuit breaker |
-
1991
- 1991-10-28 DE DE9113366U patent/DE9113366U1/en not_active Expired - Lifetime
-
1992
- 1992-10-14 JP JP27599092A patent/JPH05296213A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008025843A (en) * | 2006-07-22 | 2008-02-07 | Zahnradfab Friedrichshafen Ag | Differential piston |
Also Published As
| Publication number | Publication date |
|---|---|
| DE9113366U1 (en) | 1991-12-12 |
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