CN110319070B - Hydraulic operating mechanism, energy storage cylinder module and circuit breaker - Google Patents
Hydraulic operating mechanism, energy storage cylinder module and circuit breaker Download PDFInfo
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- CN110319070B CN110319070B CN201810267173.8A CN201810267173A CN110319070B CN 110319070 B CN110319070 B CN 110319070B CN 201810267173 A CN201810267173 A CN 201810267173A CN 110319070 B CN110319070 B CN 110319070B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 90
- 239000003921 oil Substances 0.000 description 15
- 238000007906 compression Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
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Classifications
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- 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
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- 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
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- 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention relates to a hydraulic operating mechanism, an energy storage cylinder module and a circuit breaker. The hydraulic operating mechanism comprises a working cylinder, a disc spring group and an energy storage cylinder, wherein the disc spring group and the energy storage cylinder are used for providing oil pressure for the working cylinder, a fixed seat and a movable seat are respectively arranged at the upper end and the lower end of the disc spring group, a pressure spring is also arranged between the fixed seat and the movable seat, the movable seat comprises a main movable seat positioned above the disc spring group and an auxiliary movable seat positioned above the pressure spring, the auxiliary movable seat can be pressed on the main movable seat in a separable manner, the energy storage cylinder comprises a main piston cylinder and an auxiliary piston cylinder, a main piston rod and an auxiliary piston rod which are used for jacking the main movable seat and the auxiliary movable seat are respectively arranged in the main piston cylinder and the auxiliary piston cylinder, a rod cavity of the main piston cylinder is communicated with a rodless cavity, a communicating channel is, the channel port of the communicating channel communicated with the rod cavity of the main piston cylinder is arranged on the stroke of the piston in the main piston cylinder, so that the pressure of secondary brake opening is increased on the premise of not improving the rated oil pressure.
Description
Technical Field
The invention relates to a hydraulic operating mechanism, an energy storage cylinder module and a circuit breaker.
Background
The circuit breaker of the high-voltage switch equipment requires that an operating mechanism of the circuit breaker can drive an arc extinguishing unit to perform switching-off and switching-on switching-off operations so as to cut off fault current and protect a high-voltage line. The primary opening brake is operated at a rated oil pressure, and the secondary opening brake is operated at an oil pressure not lower than the opening brake locking.
The Chinese patent with the publication number of CN201655571U and the publication date of 2010.11.24 discloses a hydraulic operating mechanism of a high-voltage circuit breaker, the hydraulic operating mechanism comprises an operating cylinder module, an energy storage cylinder module, a control module, a monitoring module, a pressurizing pump module, an auxiliary switch, an oil tank and a disc spring group, two ends of the disc spring group are respectively provided with a fixed seat and a movable seat, the energy storage cylinder module comprises an energy storage cylinder, the hydraulic operating mechanism pressurizes the energy storage cylinder through a stamping pump of the pressurizing pump module, and a piston rod of the energy storage cylinder compresses the disc spring group through the movable seat to store energy. Due to the characteristics of the disc spring, the force value-compression amount curve of the disc spring group of the hydraulic operating mechanism is a parabola, and as shown in figure 1, the average pressure of primary brake opening is approximate to (P)1+P2) (P2) the average pressure of the secondary opening is approximately3+P4) And 2, the average pressure of the secondary opening is low, so that the speed of the secondary opening is low, and the high-voltage switch can be disconnected unsuccessfully, thereby causing a safety accident.
In order to increase the output force value of the combined disc spring to increase the average pressure of the secondary opening, it is a common practice to select a larger size of the combined disc spring or increase the compression amount of the combined disc spring. However, the output force of the disc spring group is too high, so that potential safety hazards exist, the speed during one-time brake opening is higher than a required value, the supply and demand are exceeded, and energy loss is caused.
Disclosure of Invention
The invention aims to provide a hydraulic operating mechanism for compensating secondary brake-separating pressure on the premise of not improving rated oil pressure; the invention also aims to provide an energy storage cylinder module; the invention also aims to provide a circuit breaker.
In order to achieve the purpose, the technical scheme of the hydraulic operating mechanism is as follows:
scheme 1: the hydraulic operating mechanism comprises a working cylinder, a disc spring group and an energy storage cylinder, wherein the disc spring group is used for providing oil pressure for the working cylinder, the upper end and the lower end of the disc spring group are respectively provided with a fixed seat and a movable seat, a pressure spring is arranged between the fixed seat and the movable seat, the movable seat comprises a main movable seat positioned above the disc spring group and an auxiliary movable seat positioned above the pressure spring, the auxiliary movable seat is detachably pressed on the main movable seat, the energy storage cylinder comprises a main piston cylinder and an auxiliary piston cylinder, a main piston rod and an auxiliary piston rod which are used for jacking and pressing the main movable seat and the auxiliary movable seat are respectively arranged in the main piston cylinder and the auxiliary piston cylinder, a rod cavity and a rodless cavity of the main piston cylinder are communicated, a communicating channel is arranged between the rod cavity of the main piston cylinder and the rodless cavity of the auxiliary piston cylinder, and a channel port of the communication channel, which is communicated with the rod cavity of the main piston cylinder, is arranged on the stroke of the piston in the main piston cylinder.
The beneficial effects are as follows: the hydraulic operating mechanism is additionally provided with the auxiliary piston cylinder and the pressure spring, and the pressure spring and the disc spring set simultaneously compress and store energy, so that the average pressure of secondary opening is increased on the premise of not increasing the rated oil pressure, the speed of secondary opening and the success rate of secondary opening are increased, and the safety of a power grid is ensured; the auxiliary movable seat is detachably pressed on the main movable seat, the rod cavity and the rodless cavity of the main piston cylinder are communicated, a communicating channel is arranged between the rod cavity of the main piston cylinder and the rodless cavity of the auxiliary piston cylinder, the communicating channel and a channel port of the rod cavity of the main piston cylinder are arranged on the stroke of the piston of the main piston cylinder, the communicating channel can be plugged by the piston of the main piston cylinder in the stroke, the problem that the potential safety hazard is caused due to overlarge energy storage pressure is avoided, and meanwhile, the problem of energy loss caused by excessive energy storage is also avoided.
Scheme 2: on the basis of the scheme 1, a main energy storage piston is arranged in the main piston cylinder, and a rod cavity and a rodless cavity of the main piston cylinder are communicated through a through hole formed in the main energy storage piston.
Scheme 3: on the basis of the scheme 1 or 2, the auxiliary movable seat is detachably pressed on the main movable seat through the ring platform.
Scheme 4: on the basis of the scheme 1 or 2, a rod cavity and a rodless cavity of the auxiliary piston cylinder are communicated.
Scheme 5: on the basis of the scheme 4, an auxiliary energy storage piston is arranged in the auxiliary piston cylinder, and a rod cavity and a rodless cavity of the auxiliary piston cylinder are communicated through a through hole formed in the auxiliary energy storage piston.
Scheme 6: on the basis of the scheme 1 or 2, the pressure spring is a spiral spring.
Scheme 7: on the basis of scheme 6, the auxiliary movable seat and the fixed seat are respectively provided with a guide post for guiding two ends of the spiral spring.
Scheme 8: on the basis of the scheme 6, the spiral springs are arranged at intervals along the circumferential direction of the disc spring.
The technical scheme of the energy storage cylinder module is as follows:
scheme 1: the energy storage cylinder module comprises an energy storage cylinder, the energy storage cylinder comprises a main piston cylinder and an auxiliary piston cylinder, the main piston cylinder and the auxiliary piston cylinder are respectively provided with a main piston rod and an auxiliary piston rod which are used for jacking and pressing a main movable seat and an auxiliary movable seat, a rod cavity of the main piston cylinder is communicated with a rodless cavity, a communicating channel is arranged between the rod cavity of the main piston cylinder and the rodless cavity of the auxiliary piston cylinder, and a channel port of the communicating channel, which is communicated with the rod cavity of the main piston cylinder, is arranged on the stroke of a piston in the main piston cylinder.
Scheme 2: on the basis of the scheme 1, a main energy storage piston is arranged in the main piston cylinder, and a rod cavity and a rodless cavity of the main piston cylinder are communicated through a through hole formed in the main energy storage piston.
Scheme 3: on the basis of the scheme 1 or 2, a rod cavity and a rodless cavity of the auxiliary piston cylinder are communicated.
Scheme 4: on the basis of the scheme 3, an auxiliary energy storage piston is arranged in the auxiliary piston cylinder, and a rod cavity and a rodless cavity of the auxiliary piston cylinder are communicated through a through hole formed in the auxiliary energy storage piston.
The technical scheme of the circuit breaker is as follows:
scheme 1: the circuit breaker comprises a hydraulic operating mechanism, the hydraulic operating mechanism comprises a working cylinder, a disc spring group and an energy storage cylinder, the disc spring group is used for providing oil pressure for the working cylinder, the upper end and the lower end of the disc spring group are respectively provided with a fixed seat and a movable seat, a pressure spring is arranged between the fixed seat and the movable seat, the movable seat comprises a main movable seat positioned above the disc spring group and an auxiliary movable seat positioned above the pressure spring, the auxiliary movable seat is detachably pressed on the main movable seat, the energy storage cylinder comprises a main piston cylinder and an auxiliary piston cylinder, a main piston rod and an auxiliary piston rod which are used for jacking and pressing the main movable seat and the auxiliary movable seat are respectively arranged in the main piston cylinder and the auxiliary piston cylinder, a rod cavity and a rodless cavity of the main piston cylinder are communicated, a communicating channel is arranged between the rod cavity of the main piston cylinder and the rodless cavity of the auxiliary piston cylinder, and a channel port of the communication channel, which is communicated with the rod cavity of the main piston cylinder, is arranged on the stroke of the piston in the main piston cylinder.
Scheme 2: on the basis of the scheme 1, a main energy storage piston is arranged in the main piston cylinder, and a rod cavity and a rodless cavity of the main piston cylinder are communicated through a through hole formed in the main energy storage piston.
Scheme 3: on the basis of the scheme 1 or 2, the auxiliary movable seat is detachably pressed on the main movable seat through the ring platform.
Scheme 4: on the basis of the scheme 1 or 2, a rod cavity and a rodless cavity of the auxiliary piston cylinder are communicated.
Scheme 5: on the basis of the scheme 4, an auxiliary energy storage piston is arranged in the auxiliary piston cylinder, and a rod cavity and a rodless cavity of the auxiliary piston cylinder are communicated through a through hole formed in the auxiliary energy storage piston.
Scheme 6: on the basis of the scheme 1 or 2, the pressure spring is a spiral spring.
Scheme 7: on the basis of scheme 6, the auxiliary movable seat and the fixed seat are respectively provided with a guide post for guiding the upper end and the lower end of the spiral spring.
Scheme 8: on the basis of the scheme 6, the spiral springs are arranged at intervals along the circumferential direction of the disc spring.
Drawings
FIG. 1 is a graph of stored energy pressure versus compression of a disc spring for a prior art hydraulic actuator;
fig. 2 is a partial structural schematic view of the hydraulic operating mechanism of embodiment 1 of the present invention;
fig. 3 is a graph comparing the stored energy pressure versus the compression of the disc spring of the spring actuator of fig. 2 with fig. 1.
Description of reference numerals: 1. a working cylinder; 2. a disc spring set; 3. a disc spring pressing plate; 4. an energy storage cylinder; 5. a main piston cylinder; 6. an auxiliary piston cylinder; 7. a through hole; 8. an auxiliary energy storage piston; 9. a communication channel; 10. a main energy storage piston; 11. sealing the end cap; 12. a helical spring platen; 13. a coil spring; 14. a coil spring guide block; 15. a fixing plate; 16. a snap ring.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
The clamp plate includes dish spring clamp plate 3 and coil spring clamp plate 12, and coil spring clamp plate 12 presses on dish spring clamp plate 3 through annular step, and coil spring 13 sets up along the circumference interval of dish spring on fixed plate 15, is equipped with the coil spring guide block 14 that is used for leading the both ends of coil spring 13 on coil spring clamp plate 12 and the fixed plate 15 respectively.
The energy storage cylinder 4 comprises a main piston cylinder 5 and an auxiliary piston cylinder 6, a main energy storage piston 10 is arranged in the main piston cylinder 5, an auxiliary energy storage piston 8 is arranged in the auxiliary piston cylinder 6, the main piston cylinder and the auxiliary piston cylinder are respectively provided with a main piston rod and an auxiliary piston rod which are used for jacking a disc spring pressing plate 3 and a spiral spring pressing plate 12, a through hole 7 which is communicated with a rod cavity and a rodless cavity of the main piston cylinder 5 is formed in the main energy storage piston 10, a through hole 7 which is communicated with the rod cavity and the rodless cavity of the auxiliary piston cylinder 6 is formed in the auxiliary energy storage piston 8, a communication channel 9 is formed between the rod cavity of the main piston cylinder 5 and the rodless cavity of the auxiliary piston cylinder 6, and a channel port communicated with the main piston cylinder 5. The main energy storage piston 10 is provided with a columnar bulge facing the rodless cavity of the main piston cylinder 5, and the auxiliary energy storage piston 8 is provided with a columnar bulge facing the rodless cavity of the auxiliary piston cylinder 6. The energy storage cylinder 4 further comprises a sealing end cap 11 for sealing the main piston cylinder 5 and the auxiliary piston cylinder 6.
The working cylinder 1 is provided with a snap ring 16 for limiting the fixing plate 15, and the working cylinder 1 is also provided with an annular step for limiting the disc spring pressing plate 3.
When the hydraulic operating mechanism of the invention stores energy, hydraulic pressure enters a rodless cavity of the main piston cylinder 5 and enters a rod cavity of the main piston cylinder 5 through the through hole 7 on the main energy storage piston 10, oil in the rod cavity of the main piston cylinder 5 enters a rodless cavity of the auxiliary piston cylinder 6 through the communicating channel 9, a piston rod of the main energy storage piston 10 presses the disc spring pressing plate 3 to move downwards, and the total moving stroke of the main energy storage piston 10 is S1，S1Not less than the compression amount corresponding to the rated oil pressure, meanwhile, the piston rod of the auxiliary energy storage piston 8 presses the spiral spring pressing plate 12 to move downwards, and the total movement stroke of the auxiliary energy storage piston 8 is S2，S2Not less than the compression amount corresponding to the opening and closing oil pressure, and S1>S2. When the motion stroke of the main energy storage piston 10 and the auxiliary energy storage piston 8 exceeds S2During the process, the main energy storage piston 10 blocks the communicating channel 9, and as the spiral spring pressing plate 12 is pressed on the disc spring pressing plate 3 through the annular step, the auxiliary energy storage piston 8 does not continue to compress the spiral spring 13 downwards, and the main energy storage piston 10 continues to press the disc spring group 2 downwards along with the continuously supplemented oil.
The hydraulic operating mechanism of the invention adds the auxiliary piston cylinder 6 and the spiral spring 13, the spiral spring 13 and the disc spring group 2 compress and store energy simultaneously within the stroke of 0-S2, and the average pressure of the stroke is approximate to (P)， 3+P， 4) /2, greater than the prior art approximation (P)3+P4) And 2, the system oil pressure of the stroke section is improved, the average pressure of secondary brake opening is compensated, the average speed of the secondary brake opening is improved, the on-off success rate of the secondary brake opening is increased, and the safety of a power grid is guaranteed. In the stroke S2-S1, the auxiliary energy storage piston 8 and the spiral spring 13 are not acted, and the average pressure of the stroke is approximate to (P)， 1+P， 2) /2, equal to (P) approximated in the prior art1+P2) And 2, potential safety hazards caused by overlarge energy storage pressure are avoided, and energy loss caused by excessively increasing system energy is also avoided.
Compared with the embodiment 1, the embodiment 2 of the hydraulic operating mechanism is different in that a through hole is not formed in the main energy storage piston 10, two oil passages communicated with oil inlets are formed in the energy storage cylinder, and the two oil passages are respectively communicated with a rod cavity and a rodless cavity of the main piston cylinder, so that the communication between the rod cavity and the rodless cavity of the main piston cylinder is realized.
In other embodiments, the pressure spring is a disc spring group, the auxiliary movable seat is provided with a guide hole, the guide hole is staggered with the auxiliary piston cylinder, the fixed seat is provided with a stand column for mounting the disc spring group, and the stand column penetrates through the guide hole.
In the embodiment of the circuit breaker of the present invention, the circuit breaker includes a hydraulic operating mechanism, and the hydraulic operating mechanism has the same structure as any one of the above embodiments of the hydraulic operating mechanism of the present invention, and a description thereof is not repeated.
In the embodiment of the energy storage cylinder module, the energy storage cylinder module comprises the energy storage cylinder, and the energy storage cylinder has the same structure as that of the energy storage cylinder in any embodiment of the hydraulic operating mechanism, and the description is not repeated.
Claims (20)
1. Hydraulic pressure operating mechanism, including the working cylinder, be used for providing the dish spring group and the energy storage jar of oil pressure to the working cylinder, the upper and lower both ends of dish spring group are equipped with fixing base and sliding seat, its characterized in that respectively: still be equipped with the pressure spring between fixing base and the sliding seat, the sliding seat is including the main sliding seat that is located dish spring group top and the supplementary sliding seat that is located the pressure spring top, the separable pressure of supplementary sliding seat is on main sliding seat, the energy storage jar includes main piston cylinder and supplementary piston cylinder, has main piston rod and the supplementary piston rod that is used for roof pressure main sliding seat and supplementary sliding seat in the main piston cylinder respectively with the supplementary piston cylinder, and there is the pole chamber and the no pole chamber intercommunication of main piston cylinder, is equipped with the intercommunication passageway between the no pole chamber of the pole chamber of main piston cylinder and supplementary piston cylinder, the access hole that the intercommunication passageway and the main piston cylinder have the pole chamber to communicate sets up on the stroke of main piston cylinder internal piston.
2. The hydraulic operating mechanism of claim 1, wherein: a main energy storage piston is arranged in the main piston cylinder, and a rod cavity and a rodless cavity of the main piston cylinder are communicated through a through hole formed in the main energy storage piston.
3. The hydraulic operating mechanism according to claim 1 or 2, wherein: the auxiliary movable seat is detachably pressed on the main movable seat through the annular table.
4. The hydraulic operating mechanism according to claim 1 or 2, wherein: and a rod cavity and a rodless cavity of the auxiliary piston cylinder are communicated.
5. The hydraulic operating mechanism of claim 4, wherein: and an auxiliary energy storage piston is arranged in the auxiliary piston cylinder, and a rod cavity and a rodless cavity of the auxiliary piston cylinder are communicated through a through hole formed in the auxiliary energy storage piston.
6. The hydraulic operating mechanism according to claim 1 or 2, wherein: the pressure spring is a spiral spring.
7. The hydraulic operating mechanism of claim 6, wherein: and guide posts for guiding the upper end and the lower end of the spiral spring are respectively arranged on the auxiliary movable seat and the fixed seat.
8. The hydraulic operating mechanism of claim 6, wherein: the spiral springs are arranged at intervals along the circumferential direction of the disc spring.
9. Energy storage cylinder module, including energy storage cylinder, this energy storage cylinder module is used for hydraulic operating mechanism, hydraulic operating mechanism includes working cylinder and dish spring group, and dish spring group and energy storage cylinder are used for providing the oil pressure to the working cylinder, and the upper and lower both ends of dish spring group are equipped with fixing base and sliding seat, its characterized in that respectively: a pressure spring is also arranged between the fixed seat and the movable seat of the hydraulic operating mechanism, the movable seat comprises a main movable seat positioned above the disc spring group and an auxiliary movable seat positioned above the pressure spring, and the auxiliary movable seat can be pressed on the main movable seat in a separable way; the energy storage cylinder comprises a main piston cylinder and an auxiliary piston cylinder, the main piston cylinder and the auxiliary piston cylinder are respectively provided with a main piston rod and an auxiliary piston rod which are used for jacking the main movable seat and the auxiliary movable seat, a rod cavity of the main piston cylinder is communicated with a rodless cavity, a communicating channel is arranged between the rod cavity of the main piston cylinder and the rodless cavity of the auxiliary piston cylinder, and a channel opening of the communicating channel, which is communicated with the rod cavity of the main piston cylinder, is arranged on the stroke of the piston in the main piston cylinder.
10. The accumulator module of claim 9, wherein: a main energy storage piston is arranged in the main piston cylinder, and a rod cavity and a rodless cavity of the main piston cylinder are communicated through a through hole formed in the main energy storage piston.
11. An energy storage cylinder module according to claim 9 or 10, characterized in that: and a rod cavity and a rodless cavity of the auxiliary piston cylinder are communicated.
12. The accumulator module of claim 11, wherein: and an auxiliary energy storage piston is arranged in the auxiliary piston cylinder, and a rod cavity and a rodless cavity of the auxiliary piston cylinder are communicated through a through hole formed in the auxiliary energy storage piston.
13. The circuit breaker, including hydraulic pressure operating mechanism, hydraulic pressure operating mechanism includes the working cylinder, is used for providing the dish spring group and the energy storage jar of oil pressure to the working cylinder, and the upper and lower both ends of dish spring group are equipped with fixing base and sliding seat, its characterized in that respectively: still be equipped with the pressure spring between fixing base and the sliding seat, the sliding seat is including the main sliding seat that is located dish spring group top and the supplementary sliding seat that is located the pressure spring top, the separable pressure of supplementary sliding seat is on main sliding seat, the energy storage jar includes main piston cylinder and supplementary piston cylinder, has main piston rod and the supplementary piston rod that is used for roof pressure main sliding seat and supplementary sliding seat in the main piston cylinder respectively with the supplementary piston cylinder, and there is the pole chamber and the no pole chamber intercommunication of main piston cylinder, is equipped with the intercommunication passageway between the no pole chamber of the pole chamber of main piston cylinder and supplementary piston cylinder, the access hole that the intercommunication passageway and the main piston cylinder have the pole chamber to communicate sets up on the stroke of main piston cylinder internal piston.
14. The circuit breaker of claim 13, wherein: a main energy storage piston is arranged in the main piston cylinder, and a rod cavity and a rodless cavity of the main piston cylinder are communicated through a through hole formed in the main energy storage piston.
15. The circuit breaker according to claim 13 or 14, characterized in that: the auxiliary movable seat is detachably pressed on the main movable seat through the annular table.
16. The circuit breaker according to claim 13 or 14, characterized in that: and a rod cavity and a rodless cavity of the auxiliary piston cylinder are communicated.
17. The circuit breaker of claim 16, wherein: and an auxiliary energy storage piston is arranged in the auxiliary piston cylinder, and a rod cavity and a rodless cavity of the auxiliary piston cylinder are communicated through a through hole formed in the auxiliary energy storage piston.
18. The circuit breaker according to claim 13 or 14, characterized in that: the pressure spring is a spiral spring.
19. The circuit breaker of claim 18, wherein: and guide posts for guiding the upper end and the lower end of the spiral spring are respectively arranged on the auxiliary movable seat and the fixed seat.
20. The circuit breaker of claim 18, wherein: the spiral springs are arranged at intervals along the circumferential direction of the disc spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810267173.8A CN110319070B (en) | 2018-03-28 | 2018-03-28 | Hydraulic operating mechanism, energy storage cylinder module and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810267173.8A CN110319070B (en) | 2018-03-28 | 2018-03-28 | Hydraulic operating mechanism, energy storage cylinder module and circuit breaker |
Publications (2)
| Publication Number | Publication Date |
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| CN110319070A CN110319070A (en) | 2019-10-11 |
| CN110319070B true CN110319070B (en) | 2020-10-30 |
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| CN201810267173.8A Active CN110319070B (en) | 2018-03-28 | 2018-03-28 | Hydraulic operating mechanism, energy storage cylinder module and circuit breaker |
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| CN (1) | CN110319070B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2457555B1 (en) * | 1979-05-25 | 1985-05-31 | Alsthom Cgee | DEVICE FOR STABILIZING THE GAS PRESSURE OF A PNEUMATIC CIRCUIT BREAKER |
| DE19637050A1 (en) * | 1996-09-12 | 1998-03-19 | Abb Patent Gmbh | Hydraulic drive |
| CN201004412Y (en) * | 2006-12-19 | 2008-01-09 | 沈阳液压件制造有限公司 | Spring liquid pressure operation machine |
| CN101799024A (en) * | 2010-03-30 | 2010-08-11 | 中国船舶重工集团公司第七〇二研究所 | Synchronous hydraulic transmission system |
| CN207033881U (en) * | 2017-07-22 | 2018-02-23 | 广州市欧美嘉卫浴科技有限公司 | A kind of controllable cushion cylinder of hydraulic pressure |
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2018
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