CN2369344Y - Spring hydraulic mechanism for high voltage breaker - Google Patents
Spring hydraulic mechanism for high voltage breaker Download PDFInfo
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- CN2369344Y CN2369344Y CN 99222869 CN99222869U CN2369344Y CN 2369344 Y CN2369344 Y CN 2369344Y CN 99222869 CN99222869 CN 99222869 CN 99222869 U CN99222869 U CN 99222869U CN 2369344 Y CN2369344 Y CN 2369344Y
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Abstract
The utility model relates to a spring hydraulic mechanism for a high voltage breaker. The utility model is characterized in that the inner part of the upper end of a cylinder body is provided with an energy storing cylinder piston which is formed into a movable fit with the cylinder body and a working cylinder piston, and the energy storing cylinder piston can be move from top to bottom. The upper end of the outer part of the cylinder body is provided with a pressure release valve, and a pressure release valve rod is fixed by a screw bolt. The lower end of the outer part of the cylinder body is provided with an oil pump. The lateral surface of the outer part of the cylinder body is provided with an electromagnetic valve which is connected by a screw bolt. An energy storing plate and a spring piece are penetrated on a connecting rod, and the energy storing plate and the spring piece can be moved from top to bottom using the connecting rod as the guide rail. Hydraulic elements are all arranged in a closed oil tank. The utility model is a novel mechanism which is developed on the basis of a hydraulic mechanism. The utility model uses the spring piece to replace nitrogen to store energy. The utility model has the advantages of small size, and big operation power. The utility model solves the technological problems of oil leakage, nitrogen leakage, small size, and temperature influence by the environment.
Description
The utility model relates to a kind of power transmission and transformation field mesohigh circuit breaker hydraulic spring operating mechanism.
In the prior art, the operating mechanism of primary cut-out generally adopts three kinds of forms, that is: spring mechanism, pneumatic mechanism, hydraulic mechanism.The spring mechanism operating work is little, the circuit breaker that the incompatibility electric pressure is high.The pneumatic mechanism branch wire time is longer, instability, and volume is big, and has air feed equipment, and development prospect is little.It is short that hydraulic mechanism has branch, closing time, stable performance, and advantage such as operating work is big, that uses in height electric pressure circuit breaker is commonplace, but shortcoming such as the hidden danger that exists leakage of oil, leaks nitrogen also has pipeline more, and volume is bigger.
The purpose of this utility model is to provide a kind of advantage with hydraulic mechanism to people, and can guarantee long-term stability and reliability and the primary cut-out hydraulic spring operating mechanism that is not subjected to influence of temperature change, it is a kind of novel mechanism that develops on the hydraulic mechanism basis, replaced the nitrogen energy storage with the spring leaf energy storage, be not subjected to the influence of ambient temperature, solved leakage of oil preferably, leak nitrogen, volume is big, the technical barrier of unstable properties.
For achieving the above object, the utility model has adopted following technical scheme: primary cut-out mainly is made up of casing, cylinder body, disc spring film, energy storage plate, energy storage piston, fuel tank, motor, oil pump, working cylinder piston, electromagnetically operated valve (comprising the I and II valve), safety valve, relief valve etc. with hydraulic spring operating mechanism.Its concrete structure is such: working cylinder piston is housed in the cylinder body, and working cylinder piston is the breaking-closing operating movable body, and its upper end connects with connecting rod by joint; End flanges is equipped with in the lower end, adorns sealing ring on the cylinder body, seals, and the combined floodgate buffering ring is fixed on the cylinder body by screw thread, restraint of labour cylinder piston stroke and play the combined floodgate cushioning effect.In the cylinder body upper end energy storage tube piston is housed, with cylinder body, working cylinder piston be movingly, can move up and down.On the energy storage tube piston safety valve valve rod, spring, swivel nut are housed, by screw thread that spring, safety valve valve rod is spacing, plug screw is fixed by the thread seal circle, and sealing ring seals.Outer upper ends at cylinder body is equipped with relief valve, the pressure release valve rod passes through bolt.Oil pump is equipped with in the lower end of cylinder body outside, adorns motor on the oil pump, passes through Bolt Connection.The opposite side dress electromagnetically operated valve of the outside lower end of cylinder body passes through Bolt Connection.Cylinder body is by being bolted on the flange, and energy storage piston and flange are movingly.Flange is by being bolted on the square flange, and fuel tank is by being bolted on the square flange, and fuel tank seals above-mentioned parts.The hydraulic pressure aero oil is housed in the fuel tank.Cylinder body is by the bolt support, and support is by axle dress supporting plate, branch, closing operation bar.Supporting plate and branch, closing operation bar can rotate up and down by axle.On branch, the closing operation bar branch, closing operation button, spring are housed.The link rod lower end is fixed on the flange by screw thread, and energy storage plate, disc spring film are through on the link rod, is guide rail and can moves up and down with it.Upper flange is equipped with in the upper end of link rod, fixes by nut.The energy storage plate is fixed with the pressure switch power set, and pressure switch is fixed on the square flange.The lower end of bar 1 is fixed on the upper flange by screw thread, and the upper end is fixed on the case lid flange by screw thread case lid is clipped in wherein.Connecting rod moves up and down and drives the rotation of auxiliary switch connecting plate, and the auxiliary switch that is fixed on upper flange is rotated.The casing lower end is by being bolted on the square flange, and the upper end contacts with case lid.The energy storage casing wall on the cylinder body and the piston external diameter of energy storage piston are for movingly.Communicate with the energy storage cylinder on the high-pressure oil passage; Communicate with the high-pressure outlet of oil pump down.Work casing wall on the cylinder body and working cylinder piston are for movingly.The top of cylinder body is square, and the bottom is a rectangle.Drain oil communicates with relief valve, and the hole is a safety valve pressure release oilhole on the cylinder body, and valve port seals mutually with safety lever on the energy storage piston.
Its operation principle is: suppress, after the Oil pump electrical machinery energising, hydraulic pressure aero oil in the fuel tank is beaten to the A chamber (the A chamber is normal high pressure) by the cylinder interior oil duct, and hydraulic oil rises the energy storage piston, promote energy storage plate compression spring leaf and make mechanism's energy storage, when reaching the pressure of regulation, the pressure switch power set of installing on the energy storage plate rise thereupon, open the travel switch in the pressure switch apparatus, disconnect motor power, suppress and stop.When being above standard as pressure, the valve rod of the safety valve on the energy storage piston withstands on the flange lower end, and A chamber hydraulic oil is released to the B chamber, oil is got back to fuel tank again, and oil pressure discharges back energy storage piston under the spring leaf effect and descend, safety valve valve rod on it returns, and valve port is shut, and safety valve returns.Pressure release and venting are bought oil and are opened the relief valve air that the A chamber is remaining when pressing and bleed off, and during the mechanism pressure release relief valve valve rod are opened, and A chamber high pressure is released to fuel tank.Branch, closing operation.1, closing operation, the making electromagnet energising of electromagnetically operated valve is closed a floodgate.The motion of one step valve, secondary valve, hydraulic oil enters the C chamber, because the working cylinder piston area is poor, and stressed difference, working cylinder piston moves upward, and promptly closes a floodgate.2, sub-switching operation, the tripping electromagnet energising of electromagnetically operated valve, by separating brake one-level valve rod, secondary valve rod, the oil of C chamber high-voltage oil cavity is emitted fuel tank, working cylinder piston moves downward, be mechanism's separating brake, working cylinder piston branch, combined floodgate move through pull bar and connecting lever drives the auxiliary switch motion, connects or close secondary circuit.Branch, switch knob are pressed in manual operation respectively, and supporting plate is opened the branch of electromagnetically operated valve, the step valve that closes a floodgate by breaking-closing operating bar, axle, can carry out branch, closing operation.
Characteristics of the present utility model are: 1, the disk spring energy storage replaces the nitrogen energy storage, has solved the shortcoming of leaking nitrogen, and stable for extended periods of time and reliability are not subjected to Temperature Influence, and operating work is big.2, adopt integrated morphology, no hydraulic tube road, the project organization compactness is compared volume-diminished 50% with the hydraulic mechanism of equal operand power.3, in hydraulic systems such as electromagnetically operated valve, working cylinder, energy storage device, oil pump, relief valve are all packed the fuel tank that seals into, thoroughly solve the shortcoming of the outer oil impregnate of hydraulic system, and can accomplish never oil impregnate.4, high-low pressure oil loop structure, operate as normal oil extraction and little oil that exosmoses that oozes all drop in the fuel tank, squeeze into high-pressure system again by oil pump, and hydraulic system is for a long time without oiling.5, multiple functional, highly sensitive, long service life, safe and reliable, easy to maintenance.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model hydraulic part.
Fig. 3 is the main cutaway view of the utility model cylinder body.
Fig. 4 is that the A of Fig. 3 is to view.
Fig. 5 is that the B of Fig. 3 is to view.
Fig. 6 is the main cutaway view of the utility model energy storage piston.
Fig. 7 is the vertical view of the utility model energy storage piston.
Fig. 8 is the front view of the utility model energy storage plate.
Fig. 9 is the vertical view of the utility model energy storage plate.
Accompanying drawing 1-9 is a specific embodiment of the utility model.
With reference to accompanying drawing 1-9, primary cut-out comprises casing, cylinder body, disc spring film, energy storage plate, energy storage piston, fuel tank, motor, oil pump, working cylinder piston, electromagnetically operated valve, safety valve, relief valve, pressure switch, auxiliary switch etc. with hydraulic spring operating mechanism.Its concrete structure is such: working cylinder piston 14 is housed in the cylinder body 12, and working cylinder piston is the breaking-closing operating movable body, and its upper end connects with connecting rod 17 by joint 5.Dress sealing ring 38 seals on the cylinder body 12, and end flanges 16 is equipped with in its lower end.Combined floodgate buffering ring 27 is fixed on the cylinder body 12 by screw thread, restraint of labour cylinder piston 14 strokes and play the combined floodgate cushioning effect.Energy storage tube piston 24 is housed in cylinder body 12 upper ends, with cylinder body 12, working cylinder piston 14 be movingly, can move up and down.Safety valve valve rod 9, spring 36, swivel nut 37 are housed on the energy storage tube piston 24, and swivel nut 37 is spacing with spring 36, safety valve valve rod 9 by screw thread, and plug screw 25 is fixing with sealing ring 35 by screw thread, and sealing ring 35 seals.Outer upper ends at cylinder body 12 is equipped with relief valve 11, pressure release valve rod 10 by being bolted on the cylinder port.Oil pump 15 is equipped with in the lower end of cylinder body 12 outsides, and dress motor 13 on the oil pump connects by bolt 44.The opposite side dress electromagnetically operated valve 30 of cylinder body 12 outside lower ends connects by bolt 43.Cylinder body 12 is to be fixed on the flange 8 by bolt 40, and energy storage piston 24 is movingly with flange 8.Flange 8 is fixed on the square flange 45 by bolt 34, and fuel tank 29 is fixed on the square flange 45 by bolt 34, and fuel tank 29 seals above-mentioned parts.Hydraulic pressure aero oil 31 is housed in the fuel tank 29.Cylinder body 12 is by bolt 41 fixed supports 46, and support 46 is by axle 42 dress supporting plates 28, branch, closing operation bar 26.Supporting plate 28 and branch, closing operation bar 26 can rotate up and down by axle 42.On branch, the closing operation bar branch, closing operation button 23, spring 39 are housed.Link rod 6 lower ends are fixed on the flange 8 by screw thread, and energy storage plate 22, disc spring film 21 are through on the link rod 6, are guide rail and can move up and down with it.Upper flange 3 is equipped with in the upper end of link rod 6, and is fixing by nut 2.Energy storage plate 22 is fixed with pressure switch power set 20, and pressure switch 7 is fixed on the square flange 45.The lower end of bar 1 is fixed on the upper flange 3 by screw thread, and the upper end is fixed on the case lid flange 32 by screw thread case lid 19 is clipped in wherein.Connecting rod 17 moves up and down and drives 33 rotations of auxiliary switch connecting plate, and the auxiliary switch 18 that is fixed on upper flange 3 is rotated.Casing 4 lower ends are by being bolted on the square flange 45, and the upper end contacts with case lid 19.The energy storage casing wall 47 on the cylinder body 12 and the piston external diameter 52 of energy storage piston 24 are for movingly.Communicate with the energy storage cylinder on the high-pressure oil passage 51; Communicate with the high-pressure outlet of oil pump down.Work casing wall 48 on the cylinder body 12 and working cylinder piston 14 are for movingly.The top of cylinder body 12 is square, and the bottom is a rectangle.Drain oil 49 communicates with relief valve 11, and hole 50 is a safety valve pressure release oilhole on the cylinder body 12, and valve port 53 seals mutually with safety lever 9 on the energy storage piston 24.
Claims (3)
1, a kind of primary cut-out hydraulic spring operating mechanism, comprise casing (4), fuel tank (29), motor (13), oil pump (15), it is characterized in that: working cylinder piston (14) is housed in the cylinder body (12), working cylinder piston (14) is the breaking-closing operating movable body, its upper end connects with connecting rod (17) by joint (5), cylinder body (12) is gone up dress sealing ring (38), seal, end flanges (16) is equipped with in its lower end, combined floodgate buffering ring (27) is fixed on the cylinder body (12) by screw thread, cylinder body (12) is equipped with energy storage tube piston (24) in the upper end, with cylinder body (12), working cylinder piston (14) is movingly, can move up and down, safety valve valve rod (9) is housed on the energy storage tube piston (24), spring (36), swivel nut (37), by screw thread with spring (36), safety valve valve rod (9) is spacing, plug screw (25) is fixing with sealing ring (35) by screw thread, sealing ring (35) seals, outer upper ends at cylinder body (12) is equipped with relief valve (11), pressure release valve rod (10) passes through bolt, oil pump (15) is equipped with in the outside lower end of cylinder body (12), adorn motor (13) on the oil pump, connect by bolt (44), the opposite side dress electromagnetically operated valve (30) of the outside lower end of cylinder body (12) connects by bolt (43), cylinder body (12) is to be fixed on the flange (8) by bolt (40), energy storage piston (24) is movingly with flange (8), flange (8) is fixed on the square flange (45) by bolt (34), fuel tank (29) is fixed on the square flange (45) by bolt (34), fuel tank (29) seals above-mentioned parts, hydraulic pressure aero oil (31) is housed in the fuel tank (29), cylinder body (12) is by bolt (41) fixed support (46), support (46) is by axle (42) dress supporting plate (28), divide, closing operation bar (26), supporting plate (28) and branch, closing operation bar (26) can rotate up and down by axle (42), divide, on the closing operation bar branch is housed, closing operation button (23), spring (39), link rod (6) lower end is fixed on the flange (8) by screw thread, energy storage plate (22), disc spring film (21) is through on the link rod (6), be guide rail and can move up and down that with it upper flange (3) is equipped with in upper end of link rod (6).Fixing by nut (2), energy storage plate (22) is fixed with pressure switch power set (20), pressure switch (7) is fixed on the square flange (45), the lower end of bar (1) is fixed on the upper flange (3) by screw thread, the upper end is fixed on case lid flange (32) by screw thread and upward case lid (19) is clipped in wherein, connecting rod (17) moves up and down and drives auxiliary switch connecting plate (33) rotation, the auxiliary switch (18) that is fixed on upper flange (3) is rotated, casing (4) lower end is by being bolted on the square flange (45), and the upper end contacts with case lid (19).
2, primary cut-out hydraulic spring operating mechanism according to claim 1 is characterized in that: the energy storage casing wall (47) on the cylinder body (12) and the piston external diameter (52) of energy storage piston (24) are for movingly, and high-pressure oil passage (51) is gone up and communicated with the energy storage cylinder; Communicate with the high-pressure outlet of oil pump down.Work casing wall (48) on the cylinder body (12) and working cylinder piston (14) are for movingly, drain oil (49) communicates with relief valve (11), it is safety valve pressure release oilhole that cylinder body (12) is gone up hole (50), and energy storage piston (24) is gone up valve port (53) and sealed mutually with safety lever (9).
3, according to claim 1,2 described primary cut-out hydraulic spring operating mechanisms, it is characterized in that: the top of cylinder body (12) is square, and the bottom is a rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99222869 CN2369344Y (en) | 1999-02-15 | 1999-02-15 | Spring hydraulic mechanism for high voltage breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99222869 CN2369344Y (en) | 1999-02-15 | 1999-02-15 | Spring hydraulic mechanism for high voltage breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2369344Y true CN2369344Y (en) | 2000-03-15 |
Family
ID=34013179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99222869 Expired - Fee Related CN2369344Y (en) | 1999-02-15 | 1999-02-15 | Spring hydraulic mechanism for high voltage breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2369344Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437869C (en) * | 2006-05-25 | 2008-11-26 | 沈阳东华工大高压电器设备有限公司 | Spring hydraulic operating mechanism for high voltage circuit breaker |
| CN100583341C (en) * | 2007-02-09 | 2010-01-20 | 沈阳东华工大高压电器设备有限公司 | Casing-integrated spring hydraulic operation mechanism for primary cut-out |
| CN101447361B (en) * | 2008-08-15 | 2011-07-27 | 中国电力科学研究院 | Remaining hydraulic spring mechanism |
| CN101393816B (en) * | 2008-10-31 | 2012-04-25 | 沈阳东华工大高压电器设备有限公司 | Electromagnetic hydraulic valve type spring hydraulic operating mechanism having self-defense capability |
| CN105513841A (en) * | 2015-12-15 | 2016-04-20 | 中国西电电气股份有限公司 | Circuit breaker power-off maintenance and live operation pressure relief method and system and energy storage method thereof |
| CN112700985A (en) * | 2020-12-14 | 2021-04-23 | 河南平高电气股份有限公司 | Connecting seat and disc spring hydraulic mechanism using same |
-
1999
- 1999-02-15 CN CN 99222869 patent/CN2369344Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437869C (en) * | 2006-05-25 | 2008-11-26 | 沈阳东华工大高压电器设备有限公司 | Spring hydraulic operating mechanism for high voltage circuit breaker |
| CN100583341C (en) * | 2007-02-09 | 2010-01-20 | 沈阳东华工大高压电器设备有限公司 | Casing-integrated spring hydraulic operation mechanism for primary cut-out |
| CN101447361B (en) * | 2008-08-15 | 2011-07-27 | 中国电力科学研究院 | Remaining hydraulic spring mechanism |
| CN101393816B (en) * | 2008-10-31 | 2012-04-25 | 沈阳东华工大高压电器设备有限公司 | Electromagnetic hydraulic valve type spring hydraulic operating mechanism having self-defense capability |
| CN105513841A (en) * | 2015-12-15 | 2016-04-20 | 中国西电电气股份有限公司 | Circuit breaker power-off maintenance and live operation pressure relief method and system and energy storage method thereof |
| CN105513841B (en) * | 2015-12-15 | 2018-09-28 | 中国西电电气股份有限公司 | The pressure releasing method and system and energy storage method that power failure of breaker overhauls and electrification puts into operation |
| CN112700985A (en) * | 2020-12-14 | 2021-04-23 | 河南平高电气股份有限公司 | Connecting seat and disc spring hydraulic mechanism using same |
| CN112700985B (en) * | 2020-12-14 | 2024-05-14 | 河南平高电气股份有限公司 | Connecting seat and disc spring hydraulic mechanism using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |