CN2854793Y - Hydraulic operation mechanism for high tension circuit breaker - Google Patents
Hydraulic operation mechanism for high tension circuit breaker Download PDFInfo
- Publication number
- CN2854793Y CN2854793Y CN 200520093827 CN200520093827U CN2854793Y CN 2854793 Y CN2854793 Y CN 2854793Y CN 200520093827 CN200520093827 CN 200520093827 CN 200520093827 U CN200520093827 U CN 200520093827U CN 2854793 Y CN2854793 Y CN 2854793Y
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- valve
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- oil pump
- pressure
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Abstract
A hydraulic operating mechanism for high-voltage circuit breaker comprises casing, cutoff valve, closing holder, bracket, relay, inflating joint, working cylinder, oil tank, high-pressure oil discharge valve, motor and oil pump. The hydraulic operating mechanism is characterized in that: an energy conversion device is constituted by the motor, the high-pressure oil discharge valve and the oil pump; an energy storage is constituted by inflating valve, energy-storing cylinder and piston; a working cylinder assembly is constituted by the working cylinder, working cylinder piston, closing buffer sleeve and opening buffer sleeve; a controller is constituted by closing coil, primary opening valve, secondary opening valve, primary closing valve and secondary closing valve; a monitoring device is constituted by pressure switch and switch pressure meter for controlling oil pressure and locking; inlet of the oil pump is connected with oil filter disposed in the oil tank; outlet of the oil pump is connected with the energy-storing cylinder; and oil outlet of the energy-storing cylinder is connected with opening side of the working cylinder and normally-pressurizing oil path of secondary valve via pipelines. The utility model has the advantages of good tightness, no pipeline joint, reduced oil leakage, small size, simple structure, and low manufacture cost.
Description
Technical field
The utility model relates to electrical equipment technical field, particularly a kind of primary cut-out hydraulic actuating mechanism.
Background technology
Continuous development along with power industry, the primary cut-out technology is also in constantly progressive and renewal, self extinguishing type particularly, the hybrid arc control device The Application of Technology that waits, make primary cut-out more be tending towards miniaturization, and most widely used in the operating mechanism be spring operating mechanism and hydraulic actuating mechanism, spring operating mechanism is to utilize compressed air as the energy, the sub-switching operation pneumatically is as power, the switching-in spring energy storage was as combined floodgate power when closing operation leaned on, the switching-in spring energy storage was as switching force when closing operation leaned on sub-switching operation, noise was big when its shortcoming was sub-switching operation, operating mechanism is relatively heavier, compressed-air actuated moisture can make piston and cylinder surface, the inner and control valve system corrosion of air accumulator.The bits that the air accumulator internal corrosion comes off can fill up valve port and cause pressure release to cause " divide, closing position locking " when separating brake because pneumatic operator is intrinsic, thereby the cone valve of its electromagnetically operated valve can occur that tripping causes circuit breaker refuse the branch phenomenon; And the shortcoming of hydraulic actuating mechanism is the machining accuracy to parts such as energy storage device, working cylinder assembling, valve system and oil pumps, the requirement of fineness and axiality is very high, its sealing part is many, the specification requirement height that the assembling skill is repaiied, along with the raising of power department instructions for use, this structure more and more shows its deficiency.
Summary of the invention
The purpose of this utility model provides a kind of good seal performance, reduces the leakage of oil link, the primary cut-out hydraulic actuating mechanism that volume is little and simple in structure.
The utility model is to realize like this, it comprises casing, break valve, the combined floodgate retainer, support, relay, gas-charging connection, working cylinder, fuel tank, the high pressure fuel outlet valve, motor and oil pump, it is characterized in that by motor, the energy conversion device that high pressure fuel outlet valve and oil pump are formed, by charge valve, the accumulator that energy storage tube and piston are formed, by working cylinder, working cylinder piston, the working cylinder assembling that combined floodgate cushion collar and splitting lock cushioning cover are formed, divide gate valve and secondary to divide gate valve by closing coil and one-level, the controller that one-level combined floodgate valve and secondary combined floodgate valve are formed, the height of the control oil pressure of forming by pressure switch and switch Pressure gauge and the monitoring arrangement of locking, the import of the oil pump oil strainer interior with being arranged on fuel tank is connected, the outlet of oil pump is connected with the energy storage tube, and the oil-out of energy storage tube is connected with the normal pressurising oil circuit of working cylinder separating brake side and secondary valve by pipeline.
The utlity model has good seal performance, elements such as working cylinder, electromagnetically operated valve, fuel outlet valve all are sealed in the fuel tank, and no pipeline connects, and reduce the leakage of oil link, little, the simple in structure and advantage of low manufacturing cost of volume.
Table 1 is the key property index of primary cut-out with hydraulic actuating mechanism
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described;
Fig. 1 is the structural representation of primary cut-out with hydraulic actuating mechanism,
Fig. 2 is the cutaway view along B-B of Fig. 1,
Fig. 3 is the cutaway view along C-C of Fig. 1,
The local enlarged diagram of Fig. 4 Fig. 1.
Embodiment
Shown in Fig. 1-4, this primary cut-out comprises working cylinder piston joint 1 with hydraulic actuating mechanism, top board 2, decompression back-moving spring 3, combined floodgate cushion collar 4, working cylinder piston 5, air filter 6, fuel tank 7, high pressure fuel outlet valve 8, oil ga(u)ge 9, combined floodgate maintaining valve 10, safety valve 11, splitting lock cushioning cover 12, working cylinder 13, separating brake speed regulator 14, oil pump 15, charge valve 16, energy storage tube 17, oil strainer 18, secondary combined floodgate valve 19, secondary divides gate valve 20, automatically the anti-device 21 that divides slowly, one-level combined floodgate valve 22, one-level is divided gate valve 23, separating brake one-level valve rod 24, combined floodgate one-level valve rod 25, switching winding 26, closing coil 27, combined floodgate speed control rod 28, switch Pressure gauge 29, pressure switch 30, auxiliary switch 31, motor 32, pull bar 33, casing 34, break valve 35, combined floodgate retainer 36, support 37, relay 38, gas-charging connection 39, high pressure fuel outlet valve 40 and piston 41, by motor 32, the energy conversion device that high pressure fuel outlet valve 8 and oil pump 15 are formed, by charge valve 16, the accumulator that energy storage tube 17 and piston 41 are formed, by working cylinder 13, working cylinder piston 5, the working cylinder assembling that combined floodgate cushion collar 4 and splitting lock cushioning cover 12 are formed, divide gate valve 23 and secondary to divide gate valve 20 by closing coil 27 and one-level, the controller that one-level combined floodgate valve 22 and secondary combined floodgate valve 19 are formed, the height of the control oil pressure of forming by pressure switch 30 and switch Pressure gauge 29 and the monitoring arrangement of locking, the import of oil pump 15 is connected with oil strainer 18 in being arranged on fuel tank 7, the outlet of oil pump 15 is connected with energy storage tube 17, the oil-out of energy storage tube 17 is connected by the normal pressurising oil circuit of pipeline with working cylinder 13 separating brake sides and secondary valve, starter motor 32 drives oil pump 15 work, low pressure oil in the fuel tank 7 is inhaled in the oil pump 15 by pipeline A through oil strainer 18, simultaneously oil is entered into accumulator 17 by pipeline A, piston 42 moves downward the compression high pressure nitrogen in the promotion accumulator 17, when oil enters energy storage tube 17, also enter in the normal pressurising oil circuit of working cylinder separating brake side and secondary valve along pipeline A, when hydraulic oil reaches the force value of regulation, the pressure switch contact weak point is opened, oil pump 15 quits work, energy storage finishes, closing operation, closing coil 27 is accepted the order of closing a floodgate, make that combined floodgate one-level valve rod 25 is moving to be opened one-level and divide gate valve 23 downwards, hydraulic oil enters in the right chamber that secondary divides gate valve 20 by the combined floodgate oil supply gallery, because secondary divides gate valve 20 right side bearing areas greater than the left side bearing area, make secondary divide gate valve 20 to left movement, open secondary combined floodgate valve 19, chamber, secondary combined floodgate valve 19 left side mesohigh oil enters, working cylinder piston 5 lower ends, because, working cylinder piston 5 lower end areas are greater than the upper end area, working cylinder piston 5 moves upward and drives circuit breaker realization combined floodgate by pull bar 33, sub-switching operation, switching winding 26 is accepted the separating brake order, separating brake one-level valve rod 24 is moved downward open separating brake one-level valve port, divide the hydraulic oil in gate valve 20 right-side cavity to release secondary, secondary divides gate valve 20 to be moved right by 19 drives of secondary combined floodgate valve, the hydraulic oil of the high pressure of working cylinder piston 5 lower ends is put back in the fuel tank 7, working cylinder piston 5 moves downward under the effect of upper end hydraulic oil, drives circuit breaker by pull bar 33 and realizes separating brake.
Claims (1)
1, a kind of primary cut-out hydraulic actuating mechanism, it comprises casing, break valve, the combined floodgate retainer, support, relay, gas-charging connection, working cylinder, fuel tank, the high pressure fuel outlet valve, motor and oil pump, it is characterized in that by motor, the energy conversion device that high pressure fuel outlet valve and oil pump are formed, by charge valve, the accumulator that energy storage tube and piston are formed, by working cylinder, working cylinder piston, the working cylinder assembling that combined floodgate cushion collar and splitting lock cushioning cover are formed, divide gate valve and secondary to divide gate valve by closing coil and one-level, the controller that one-level combined floodgate valve and secondary combined floodgate valve are formed, the height of the control oil pressure of forming by pressure switch and switch Pressure gauge and the monitoring arrangement of locking, the import of the oil pump oil strainer interior with being arranged on fuel tank is connected, the outlet of oil pump is connected with the energy storage tube, and the oil-out of energy storage tube is connected with the normal pressurising oil circuit of working cylinder separating brake side and secondary valve by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520093827 CN2854793Y (en) | 2005-11-25 | 2005-11-25 | Hydraulic operation mechanism for high tension circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520093827 CN2854793Y (en) | 2005-11-25 | 2005-11-25 | Hydraulic operation mechanism for high tension circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854793Y true CN2854793Y (en) | 2007-01-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520093827 Expired - Fee Related CN2854793Y (en) | 2005-11-25 | 2005-11-25 | Hydraulic operation mechanism for high tension circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854793Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136389A (en) * | 2011-03-11 | 2011-07-27 | 平高集团有限公司 | Compact hydraulic operating mechanism |
| CN104966641A (en) * | 2015-06-15 | 2015-10-07 | 深圳供电局有限公司 | Hydraulic spring operating mechanism and high-voltage breaker |
| CN106128813A (en) * | 2016-06-24 | 2016-11-16 | 平高集团有限公司 | Portable hydraulic operating mechanism and use the high-tension switch gear of this operating mechanism |
| CN110425197A (en) * | 2019-08-20 | 2019-11-08 | 中国南方电网有限责任公司超高压输电公司昆明局 | Hydraulic Mechanism of Circuit-breaker energy-storage module detection device |
| CN110726510A (en) * | 2019-09-04 | 2020-01-24 | 贵州电网有限责任公司 | Hydraulic mechanism capable of checking pressure gauge without power outage and checking method thereof |
| CN112324720A (en) * | 2020-03-18 | 2021-02-05 | 平高集团有限公司 | Hydraulic operating mechanism and control valve thereof |
-
2005
- 2005-11-25 CN CN 200520093827 patent/CN2854793Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136389A (en) * | 2011-03-11 | 2011-07-27 | 平高集团有限公司 | Compact hydraulic operating mechanism |
| CN104966641A (en) * | 2015-06-15 | 2015-10-07 | 深圳供电局有限公司 | Hydraulic spring operating mechanism and high-voltage breaker |
| CN106128813A (en) * | 2016-06-24 | 2016-11-16 | 平高集团有限公司 | Portable hydraulic operating mechanism and use the high-tension switch gear of this operating mechanism |
| CN106128813B (en) * | 2016-06-24 | 2018-11-06 | 平高集团有限公司 | Portable hydraulic operating mechanism and the high-tension switch gear for using the operating mechanism |
| CN110425197A (en) * | 2019-08-20 | 2019-11-08 | 中国南方电网有限责任公司超高压输电公司昆明局 | Hydraulic Mechanism of Circuit-breaker energy-storage module detection device |
| CN110726510A (en) * | 2019-09-04 | 2020-01-24 | 贵州电网有限责任公司 | Hydraulic mechanism capable of checking pressure gauge without power outage and checking method thereof |
| CN112324720A (en) * | 2020-03-18 | 2021-02-05 | 平高集团有限公司 | Hydraulic operating mechanism and control valve thereof |
| WO2021184848A1 (en) * | 2020-03-18 | 2021-09-23 | 平高集团有限公司 | Hydraulic operating mechanism and control valve thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070103 Termination date: 20091225 |