CN106783422B - Hydraulic control valve and hydraulic actuating mechanism, breaker - Google Patents
Hydraulic control valve and hydraulic actuating mechanism, breaker Download PDFInfo
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- CN106783422B CN106783422B CN201611228733.6A CN201611228733A CN106783422B CN 106783422 B CN106783422 B CN 106783422B CN 201611228733 A CN201611228733 A CN 201611228733A CN 106783422 B CN106783422 B CN 106783422B
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- separating brake
- main
- combined floodgate
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- 230000007246 mechanism Effects 0.000 title claims abstract description 42
- 206010008469 Chest discomfort Diseases 0.000 claims abstract description 25
- 239000002828 fuel tank Substances 0.000 claims description 11
- 238000003032 molecular docking Methods 0.000 claims description 9
- 238000009987 spinning Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 2
- CUZMQPZYCDIHQL-VCTVXEGHSA-L calcium;(2s)-1-[(2s)-3-[(2r)-2-(cyclohexanecarbonylamino)propanoyl]sulfanyl-2-methylpropanoyl]pyrrolidine-2-carboxylate Chemical group [Ca+2].N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1.N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1 CUZMQPZYCDIHQL-VCTVXEGHSA-L 0.000 claims 1
- 230000008676 import Effects 0.000 description 14
- 239000000306 component Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to hydraulic control valve and hydraulic actuating mechanism, breakers；Hydraulic control valve includes main valve, combined floodgate pilot valve, combined floodgate secondary valve, separating brake pilot valve, separating brake secondary valve, and main valve is equipped with low pressure chamber, high pressure chest, main valve signal chamber and main valve control chamber；Switching on and off secondary valve control chamber is communicated respectively with switching on and off pilot valve oil inlet and switching on and off secondary valve control chamber is connected to by the communicating passage equipped with throttle structure with the high pressure chest of main valve；The oil inlet of combined floodgate secondary valve is connected to the high pressure chest on valve body of main valve, and main valve control chamber is connected to the oil inlet of the oil outlet of combined floodgate secondary valve and separating brake secondary valve, and the oil outlet of separating brake secondary valve is connected to the low pressure chamber of main valve；Compared to existing hydraulic control valve, have main valve nominal flow rate big, the advantage of valve core of main valve driving force foot can be good at the operating mechanism suitable for relatively high power.
Description
Technical field
It is grasped the present invention relates to a kind of hydraulic control valve on high-voltage circuitbreaker and using the hydraulic pressure of the hydraulic control valve
Motivation structure and breaker.
Background technology
Hydraulic control valve is the core component of hydraulic actuating mechanism, the separating brake for control room to be sent out or the order electricity that closes a floodgate
Signal is converted to hydraulic pressure signal, and control operating mechanism carries out separating brake, combined floodgate and automatic reclosing action, drives breaker body real
Existing separating brake, combined floodgate and automatic reclosing operation.
Such as notification number is CN101916676B, the applying date is a kind of bullet disclosed in the Chinese invention patent of 2012.07.04
Spring hydraulic actuating mechanism electromagnetic hydraulic valve, including valve body of main valve, switching electromagnet, tripping electromagnet I, it is nested in valve body of main valve
Equipped with left and right valve pocket, low pressure volumes, signal cavity, high-pressure chamber are equipped in main valve valve chamber, wherein low pressure volumes connect with fuel tank
Logical, high-voltage oil cavity keeps leading to high pressure oil, and the fluid in signal cavity changes with main valve events；It is respectively equipped in left and right valve pocket
Left and right valve rod, left and right valve rod form valve core of main valve, in one end of close the electromagnet of valve core of main valve equipped with the in main valve valve pocket
Binary signal chamber, the oil pressure state control bound spool in second signal chamber act to form main valve control chamber；Carrying out closing operation
When, switching electromagnet obtains electric, and the high pressure oil in high-pressure chamber enters main valve control chamber, and high pressure oil pushes valve core of main valve to moving to left
Dynamic, valve core of main valve separates main valve signal cavity and main valve low pressure chamber, while high pressure chest being connected to main valve signal chamber, high pressure oil
Enter in operating mechanism control loop via main valve signal chamber, completes feed motion；When carrying out sub-switching operation, tripping electromagnet
I obtains electric, and the high pressure oil in main valve control chamber enters fuel tank, and control chamber loses high pressure, and valve core of main valve quickly moves right, main valve valve
Core separates main valve signal chamber and high pressure chest, while main valve signal chamber being connected with main valve low pressure chamber, operating mechanism control loop
In high pressure oil enter fuel tank via main valve signal chamber, realize sub-switching operation.
For above-mentioned existing hydraulic control valve when controlling the larger operating mechanism of some power, main valve needs larger stream
Amount, it is therefore desirable to which higher hydraulic pressure and larger valve core of main valve, this action for allowing for valve core of main valve need larger drive
Power realizes that the driving force of existing electromagnet coil is difficult to meet demand, therefore existing hydraulic control valve is difficult to be applicable in
In the operating mechanism that power is larger.
Invention content
The purpose of the present invention is to provide a kind of hydraulic control valve, to solve existing hydraulic control valve be difficult to be suitable for compared with
The problem of powerful operating mechanism；The present invention also aims to provide a kind of hydraulic operating having used the hydraulic control valve
Mechanism and breaker.
To achieve the above object, the first technical solution of hydraulic control valve of the invention is：Hydraulic control valve includes master
Valve, main valve include the main valve control chamber that low pressure chamber, high pressure chest, main valve signal chamber and the spool for control bound act, hydraulic pressure
Control valve further includes combined floodgate pilot valve, combined floodgate secondary valve, separating brake pilot valve, separating brake secondary valve；Combined floodgate pilot valve and separating brake guide
Valve includes oil inlet and the drain tap for being connected to fuel tank；Combined floodgate secondary valve and separating brake secondary valve include valve chamber and slide close
Seal the two level valve core that is arranged in valve chamber, valve chamber include be arranged the axial both ends of two level valve core secondary valve control chamber and
The side wall of oil suction chamber, oil suction chamber is equipped with oil inlet and is equipped with oil outlet, two level valve core backwards to one end of secondary valve control chamber
One end by spring compression on oil outlet and in oil suction chamber has pressure-bearing end face；The secondary valve of switching on and off secondary valve
Control chamber is communicated with the oil inlet of corresponding switching on and off pilot valve respectively and the secondary valve control chamber of switching on and off secondary valve is logical
The communicating passage equipped with throttle structure is crossed to be connected to the high pressure chest of main valve；Height on the oil inlet and valve body of main valve of combined floodgate secondary valve
Chamber connection, main valve control chamber is pressed to be connected to the oil inlet of the oil outlet of combined floodgate secondary valve and separating brake secondary valve, separating brake secondary valve
Oil outlet is connected to the low pressure chamber of main valve.
Second of technical solution of hydraulic control valve of the present invention be：The first skill of hydraulic control valve according to the present invention
The valve chamber of hydraulic control valve described in art scheme, the secondary valve is arranged on the valve body of main valve of main valve.
The third technical solution of hydraulic control valve of the present invention is：The first of hydraulic control valve according to the present invention or
Hydraulic control valve described in two kinds of technical solutions, the pilot valve include guide's valve base, guide's valve base docking ground setting
On valve body of main valve, the throttle structure is arranged on the interface of first pilot valve seat and valve body of main valve.
The 4th kind of technical solution of hydraulic control valve of the present invention be：The third skill of hydraulic control valve according to the present invention
Hydraulic control valve described in art scheme, the secondary valve include secondary valve adjustment seat, secondary valve adjustment seat and two level valve core
It is corresponding close to one end of secondary valve control chamber and by the first pilot valve seat of helicitic texture spinning, the spring on the secondary valve
It is arranged between two level valve core and secondary valve adjustment seat.
The first technical solution of hydraulic actuating mechanism of the present invention is：Hydraulic actuating mechanism includes hydraulic control valve, liquid
Pressure control valve includes main valve, and main valve includes the master that low pressure chamber, high pressure chest, main valve signal chamber and the spool for control bound act
Valve control chamber, hydraulic control valve further include combined floodgate pilot valve, combined floodgate secondary valve, separating brake pilot valve, separating brake secondary valve；Combined floodgate guide
Valve includes oil inlet and the drain tap for being connected to fuel tank with separating brake pilot valve；Combined floodgate secondary valve and separating brake secondary valve include
Valve chamber and it is slidingly sealed the two level valve core being arranged in valve chamber, valve chamber includes being arranged the two of the axial both ends of two level valve core
The side wall of step valve control chamber and oil suction chamber, oil suction chamber is equipped with oil inlet and is equipped with backwards to one end of secondary valve control chamber fuel-displaced
Mouthful, the one end of two level valve core by spring compression on oil outlet and in oil suction chamber has pressure-bearing end face；Switching on and off two
The secondary valve control chamber of step valve is communicated respectively with the oil inlet of corresponding switching on and off pilot valve and the two level of switching on and off secondary valve
Valve control chamber is connected to by the communicating passage equipped with throttle structure with the high pressure chest of main valve；The oil inlet of combined floodgate secondary valve and master
High pressure chest connection on valve body, main valve control chamber are connected to the oil inlet of the oil outlet of combined floodgate secondary valve and separating brake secondary valve,
The oil outlet of separating brake secondary valve is connected to the low pressure chamber of main valve.
Second of technical solution of hydraulic actuating mechanism of the present invention be：The first of hydraulic actuating mechanism according to the present invention
Hydraulic actuating mechanism described in kind technical solution, the valve chamber of the secondary valve are arranged on the valve body of main valve of main valve.
The third technical solution of hydraulic actuating mechanism of the present invention is：The first of hydraulic actuating mechanism according to the present invention
Or the hydraulic actuating mechanism described in second of technical solution, the pilot valve include guide's valve base, the docking of guide's valve base
Ground is arranged on valve body of main valve, and the throttle structure is arranged on the interface of first pilot valve seat and valve body of main valve.
The 4th kind of technical solution of hydraulic actuating mechanism of the present invention be：The third of hydraulic actuating mechanism according to the present invention
Hydraulic actuating mechanism described in kind technical solution, the secondary valve includes secondary valve adjustment seat, secondary valve adjustment seat and two level
Valve core is corresponding close to one end of secondary valve control chamber and by the first pilot valve seat of helicitic texture spinning, on the secondary valve
Spring be arranged between two level valve core and secondary valve adjustment seat.
The first technical solution of breaker of the present invention is：Breaker includes hydraulic actuating mechanism, hydraulic actuating mechanism
Including hydraulic control valve, hydraulic control valve includes main valve, and main valve includes low pressure chamber, high pressure chest, main valve signal chamber and for controlling
Main valve spool action main valve control chamber, hydraulic control valve further include combined floodgate pilot valve, combined floodgate secondary valve, separating brake pilot valve,
Separating brake secondary valve；Combined floodgate pilot valve includes oil inlet and the drain tap for being connected to fuel tank with separating brake pilot valve；Combined floodgate two level
Valve and separating brake secondary valve include valve chamber and are slidingly sealed the two level valve core being arranged in valve chamber, and valve chamber includes being arranged in two level
The side wall of the secondary valve control chamber and oil suction chamber at the axial both ends of valve core, oil suction chamber is equipped with oil inlet and backwards to secondary valve control
One end of chamber processed is equipped with oil outlet, and the one end of two level valve core by spring compression on oil outlet and in oil suction chamber has
Pressure-bearing end face；The secondary valve control chamber of switching on and off secondary valve communicated respectively with the oil inlet of corresponding switching on and off pilot valve and
The secondary valve control chamber of switching on and off secondary valve is connected to by the communicating passage equipped with throttle structure with the high pressure chest of main valve；It closes
The oil inlet of lock secondary valve is connected to the high pressure chest on valve body of main valve, the oil outlet and separating brake of main valve control chamber and combined floodgate secondary valve
The oil inlet of secondary valve is connected to, and the oil outlet of separating brake secondary valve is connected to the low pressure chamber of main valve.
Second of technical solution of breaker of the present invention be：The first technical solution institute of breaker according to the present invention
The valve chamber of the breaker stated, the secondary valve is arranged on the valve body of main valve of main valve.
The third technical solution of breaker of the present invention is：The first or second kind technology of breaker according to the present invention
Breaker described in scheme, the pilot valve include guide's valve base, and guide's valve base docking ground is arranged on valve body of main valve,
The throttle structure is arranged on the interface of first pilot valve seat and valve body of main valve.
The 4th kind of technical solution of breaker of the present invention be：The third technical solution institute of breaker according to the present invention
The breaker stated, the secondary valve include secondary valve adjustment seat, and secondary valve adjustment seat is with two level valve core close to secondary valve control
One end of chamber processed is corresponding and by the way that in the first pilot valve seat of helicitic texture spinning, the spring on the secondary valve is arranged in secondary valve
Between spool and secondary valve adjustment seat.
The beneficial effects of the invention are as follows：Using by main valve, secondary valve and pilot valves at series connection amplification three-level valve arrangement,
The nominal flow rate for improving hydraulic control valve is adjusted the action of two level valve core with throttling set, passes through the action control of two level spool
Oil pressure in main valve control chamber processed, and then the action of control bound spool realize main valve signal chamber in main valve high pressure chest and main valve
Switching on and off operation is realized in switching between low pressure chamber；Compared to existing hydraulic control valve, hydraulic control valve energy of the invention
Enough operating mechanisms for being suitable for relatively high power well.
Further, the valve chamber of the secondary valve is arranged on the valve body of main valve of main valve；Valve body of main valve forms secondary valve valve
Body simplifies the structure of hydraulic control valve, reduces the volume of hydraulic control valve.
Further, pilot valve includes guide's valve base, and secondary valve includes secondary valve adjustment seat, secondary valve adjustment seat and two
Grade valve core is corresponding close to one end of secondary valve control chamber and by the first pilot valve seat of helicitic texture spinning, two level valve spring
It is arranged between two level valve core and secondary valve adjustment seat；In use, by turn adjustment seat, secondary valve valve port is adjusted
Aperture, and then realize adjustment to valve core of main valve actuation time.
Description of the drawings
Fig. 1 is in schematic diagram when gate-dividing state for the specific embodiment of hydraulic control valve of the present invention；
Fig. 2 is the structural plan of the specific embodiment of hydraulic control valve of the present invention；
Fig. 3 is that the hair at the A in Fig. 1 is schemed greatly；
Fig. 4 is the enlarged drawing at the B in Fig. 1；
In figure：1- switching electromagnets, 2- combined floodgates pilot valve, 3- combined floodgate guides valve base, 4- combined floodgates secondary valve, 5- main valve valves
Body, 6- main valve valve pocket I, 7- valve core of main valve, 8- main valve valve pocket II, 9- separating brakes secondary valve, 10- separating brake pilot valve I, 11- separating brake are first
Pilot valve II, 12- separating brake guide valve base, 13- tripping electromagnet I, 14- tripping electromagnet II, 15- locking nut, 16- are adjusted
Seat, 17- two levels valve spring, 18- two levels valve core, 19- secondary valves valve pocket, 31- restrictor rings, 201- combined floodgate pilot valves valve port,
202- combined floodgates Pilot valve outlet, the import of 203- combined floodgate pilot valves, 401 combined floodgate secondary valve valve ports, 402- combined floodgate two level valve signals chamber,
The import of 403- combined floodgate secondary valves, 404- combined floodgate two levels valve outlet, 101- separating brake pilot valve I valve ports, 102- separating brake pilot valves I go out
Mouth, 103- separating brake pilot valve I imports, 111- separating brake pilot valve II valve ports, the outlets 112- separating brake pilot valves II, 113- separating brake guides
Valve II imports, 901- separating brake secondary valves valve port, 902- separating brake two level valve signals chamber, the import of 903- separating brake secondary valves, 904- separating brakes
Two level valve outlet, 501- high-voltage oil cavities, 502- low pressure oil pocket, 503- main valve signals chamber, 504- main valve control chambers.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment of the hydraulic control valve of the present invention, as shown in Figures 1 to 4, including main valve and setting are on main valve
Switching on and off control device；Main valve includes valve body of main valve 5, main valve valve pocket I6, main valve valve pocket II8 and valve core of main valve 7, main valve valve
Set I6 and main valve valve pocket II8 sets up the left and right side in valve body of main valve 5 separately, and the guiding of valve core of main valve 7 is installed on two main valve valve pockets simultaneously
It is formed and is slidingly sealed with corresponding main valve valve pocket contact position by sealing ring；Valve body of main valve 5 is equipped with low pressure oil pocket 502, high pressure chest
501 and main valve signal chamber 503, the left end on valve body of main valve 5 in valve core of main valve 7 is equipped with main valve control chamber 504.
The closing control device includes switching electromagnet 1, combined floodgate pilot valve 2 and combined floodgate secondary valve 4；Such as Fig. 4, close a floodgate
Pilot valve 2 includes combined floodgate guide valve base 3, and ground connection is arranged in the left side at 5 top of valve body of main valve in combined floodgate guide valve base 3；It closes
Lock electromagnet 1 is arranged on the left side side wall of combined floodgate guide valve base 3, the rank of the spool and switching electromagnet 1 of combined floodgate pilot valve 2
Iron is corresponding up and down；Combined floodgate Pilot valve outlet 202 is connected to fuel tank.
Such as Fig. 3, combined floodgate secondary valve 4 is nested on valve body of main valve 5, and the lower section in combined floodgate guide valve base 3；Combined floodgate two
Step valve 4 includes two level valve core 18, secondary valve valve pocket 19 and two level valve spring 17,18 lower end of two level valve core and secondary valve valve pocket
Combined floodgate secondary valve valve port 401 is formed at 19 top pressures, interval forms combined floodgate two level between two level valve core 18 and secondary valve valve pocket 19
One end of valve import 403, the close combined floodgate secondary valve import 403 of two level valve core 18 has pressure-bearing end face 405；Secondary valve valve pocket
Cavity above two level valve core 4 forms combined floodgate two level valve signal chamber 402 in 19, in two level valve core in secondary valve valve pocket 19
The cavity of 4 lower sections forms combined floodgate two level valve outlet 404.
Position corresponding with about 18 two level valve core is equipped with adjustment seat 16, secondary valve valve on combined floodgate guide valve base 3
The shrinkage pool installed for two level valve spring 17 is respectively equipped on core 18 and adjustment seat 16, two level valve spring 17 is mounted on 16 He of adjustment seat
Between two level valve core 18；Adjustment seat 16 is fixed beyond 3 one end of combined floodgate guide valve base by locking nut 15.
Combined floodgate two level valve signal chamber 402 is connected to combined floodgate pilot valve import 201, combined floodgate two level valve signal chamber 402 and combined floodgate
Secondary valve import 403 is connected to the low pressure oil pocket 502 of main valve respectively, the low pressure oil pocket of combined floodgate two level valve signal chamber 402 and main valve
Oil passage between 502 is equipped with restrictor ring 31, and pair in combined floodgate guide valve base 3 and valve body of main valve 5 is arranged in restrictor ring 31
At junction, restrictor ring 31 is equipped with throttle orifice, and combined floodgate two level valve outlet 404 is connected to main valve control chamber 504.
The separating brake control device includes tripping electromagnet I13, tripping electromagnet II14, separating brake pilot valve I10, separating brake
Pilot valve II11 and separating brake secondary valve 9；Separating brake pilot valve I10 is identical as separating brake pilot valve II11 structures, tripping electromagnet II14
With separating brake pilot valve II11 as spare；Separating brake pilot valve I10 and separating brake pilot valve II11 shares separating brake guide valve base 12, point
Ground connection is arranged in the right side at 5 top of valve body of main valve, such as Fig. 2, tripping electromagnet I13 and tripping electromagnet in lock guide valve base 12
II14 sets up separately in the left and right side walls of separating brake guide valve base 12.
The spool of separating brake pilot valve I10 and the spool of separating brake pilot valve II11 are electric with tripping electromagnet I13 and separating brake respectively
Magnet II14 is corresponded to；The outlet 102 of separating brake pilot valve I10 and the outlet 112 of separating brake pilot valve II11 are connected to fuel tank respectively.Point
Lock secondary valve 9 is nested on valve body of main valve 5, and between separating brake pilot valve I10 and separating brake pilot valve II11.
Separating brake secondary valve 9 is identical as 4 structure of combined floodgate secondary valve, separating brake two level valve signal chamber 902 respectively with separating brake pilot valve
The import 103 of I10 is connected to the import 113 of separating brake pilot valve II11；Separating brake secondary valve import 903 and combined floodgate two level valve outlet
404 connections, separating brake two level valve outlet 904 are connected to main valve low pressure oil pocket 502, separating brake two level valve signal chamber 902 and main valve high pressure
Restrictor ring 31 also is provided in oil passage between oil pocket 501, restrictor ring 31 is arranged in separating brake guide valve base 12 and main valve valve
At the interface of body 5, restrictor ring 31 is equipped with restriction.
When carrying out closing operation, switching electromagnet 1 must be electric, and switching electromagnet 1 pushes down on the spool of combined floodgate pilot valve 2,
Combined floodgate pilot valve valve port 201 is opened, and the high pressure oil in combined floodgate two level valve signal chamber 402 is flowed out via combined floodgate pilot valve valve port 201,
Oil pressure compensation is limited by restrictor ring 31 in combined floodgate two level valve signal chamber 402, and oil pressure gos up in combined floodgate two level valve signal chamber 402
Relatively slow, less than the oil pressure in combined floodgate secondary valve import 403, two level valve core 18 exists the oil pressure in combined floodgate two level valve signal chamber 402
The active force of two level valve spring 17 is overcome to move up under the action of high pressure oil, combined floodgate secondary valve valve port 401 is opened, main valve high-voltage oil cavity
High pressure oil in 501 enters via combined floodgate secondary valve import 401 in main valve control chamber 504, and high pressure oil pushes valve core of main valve 7 to the right
Mobile, the boss among valve core of main valve 7 separates main valve signal chamber 503 with low pressure oil pocket 502, at the same by high-voltage oil cavity 501 and
Main valve signal chamber 503 is connected to, and high pressure oil enters operating mechanism control loop via main valve signal chamber 503, is realized and is closed a floodgate.
After the completion of combined floodgate, 1 dead electricity of switching electromagnet, combined floodgate pilot valve core resets under the action of the spring, combined floodgate guide
Valve valve port 201 is closed, the gradual recovery high pressure of combined floodgate two level valve signal chamber 402, the oil pressure balance of 18 upper and lower side of two level valve core,
Under the action of two level valve spring 17, two level valve core 18 moves down, and combined floodgate secondary valve valve port 401 is made to be re-closing off, and control valve is protected
It holds in "on" position.
When carrying out sub-switching operation, tripping electromagnet I13 obtains electric, the opening of valve port 101 of separating brake pilot valve I10, separating brake two level
Oil pressure in valve signal chamber 902 reduces, and the spool of separating brake secondary valve 9 moves up under the action of high pressure oil, separating brake secondary valve valve port
901 open, and the high pressure oil in main valve control chamber 504 enters via separating brake secondary valve valve port 901 in main valve low pressure oil pocket 502, main
Valve control chamber 504 loses high pressure, and valve core of main valve 7 moves right rapidly, and the boss among valve core of main valve 7 is by high pressure chest 501 and leads
Valve signal chamber 503 separates, while main valve low pressure oil pocket 502 being connected to main valve signal chamber 503, in operating mechanism control loop
High pressure oil enters main valve low pressure oil pocket 502 via main valve signal chamber 503, realizes separating brake.
After the completion of separating brake, tripping electromagnet I13 dead electricity, the valve core reset of separating brake pilot valve I, the valve port of separating brake pilot valve I
101 close, and the pressure of the upper and lower oil pocket of 9 spool of separating brake secondary valve gradually balances, and separating brake two level valve core is in separating brake two level valve spring
Under the action of reset, separating brake secondary valve valve port 901 is re-closing off, and control valve is maintained at gate-dividing state.
In use, the aperture of secondary valve valve port 401 can be adjusted by turn adjustment seat 16, adjusts secondary valve
The time that spool is opened, and then the time that valve core of main valve 7 acts is adjusted, realize the tune to operating mechanism switching on and off actuation time
Section.
In the specific embodiment of the hydraulic actuating mechanism of the present invention, hydraulic actuating mechanism includes hydraulic control valve, in this reality
It applies in example, in addition to hydraulic control valve, other components of operating mechanism are identical as corresponding component in existing operating mechanism；This
The structure of hydraulic control valve in embodiment is identical as the structure of any embodiment of the hydraulic control valve of aforementioned present invention, no longer
Repeated explanation.
The specific embodiment of the breaker of the present invention, breaker includes operating mechanism, and operating mechanism includes hydraulic control valve,
In the present embodiment in addition to hydraulic control valve, other components of breaker are identical as corresponding component in existing breaker；
The structure of hydraulic control valve in the present embodiment is identical as the structure of any embodiment of the hydraulic control valve of aforementioned present invention, no
Repeat explanation.
Claims (12)
1. hydraulic control valve, including main valve, main valve includes low pressure chamber, high pressure chest, main valve signal chamber and the valve for control bound
The main valve control chamber of core action, it is characterised in that：Hydraulic control valve further includes combined floodgate pilot valve, combined floodgate secondary valve, separating brake guide
Valve, separating brake secondary valve；Combined floodgate pilot valve includes oil inlet and the drain tap for being connected to fuel tank with separating brake pilot valve；Combined floodgate two
Step valve and separating brake secondary valve include valve chamber and are slidingly sealed the two level valve core being arranged in valve chamber, and valve chamber includes being arranged two
The side wall of the secondary valve control chamber and oil suction chamber at the axial both ends of grade valve core, oil suction chamber is equipped with oil inlet and backwards to secondary valve
One end of control chamber is equipped with oil outlet, one end tool of the two level valve core by spring compression on oil outlet and in oil suction chamber
There is pressure-bearing end face；The secondary valve control chamber of switching on and off secondary valve communicated respectively with the oil inlet of corresponding switching on and off pilot valve and
The secondary valve control chamber of switching on and off secondary valve is connected to by the communicating passage equipped with throttle structure with the high pressure chest of main valve；It closes
The oil inlet of lock secondary valve is connected to the high pressure chest on valve body of main valve, the oil outlet and separating brake of main valve control chamber and combined floodgate secondary valve
The oil inlet of secondary valve is connected to, and the oil outlet of separating brake secondary valve is connected to the low pressure chamber of main valve.
2. hydraulic control valve according to claim 1, it is characterised in that：The master in main valve is arranged in the valve chamber of the secondary valve
On valve body.
3. hydraulic control valve according to claim 1 or 2, it is characterised in that：The combined floodgate pilot valve includes combined floodgate guide
Valve base, combined floodgate guide's valve base docking ground are arranged on valve body of main valve, and the throttle structure is arranged in combined floodgate pilot valve valve
Seat on the interface of valve body of main valve；The separating brake pilot valve includes separating brake guide's valve base, separating brake guide's valve base docking ground
It is arranged on valve body of main valve, the throttle structure is arranged on the interface of separating brake guide valve base and valve body of main valve.
4. hydraulic control valve according to claim 3, it is characterised in that：The secondary valve includes secondary valve adjustment seat,
Secondary valve adjustment seat it is corresponding close to one end of secondary valve control chamber with two level valve core and by helicitic texture spinning in pilot valve
On valve seat, the spring on the secondary valve is arranged between two level valve core and secondary valve adjustment seat.
5. hydraulic actuating mechanism, including hydraulic control valve, hydraulic control valve includes main valve, and main valve includes low pressure chamber, high pressure chest, master
Valve signal chamber and for control bound spool act main valve control chamber, it is characterised in that：Hydraulic control valve further includes closing a floodgate
Pilot valve, combined floodgate secondary valve, separating brake pilot valve, separating brake secondary valve；Combined floodgate pilot valve and separating brake pilot valve include oil inlet and
Drain tap for being connected to fuel tank；Combined floodgate secondary valve and separating brake secondary valve include that valve chamber and being slidingly sealed is arranged in valve chamber
Two level valve core, valve chamber include the secondary valve control chamber and oil suction chamber being arranged at the axial both ends of two level valve core, oil suction chamber
Side wall is equipped with oil inlet and is equipped with oil outlet backwards to one end of secondary valve control chamber, and two level valve core is being gone out by spring compression
One end on hydraulic fluid port and in oil suction chamber has pressure-bearing end face；The secondary valve control chamber of switching on and off secondary valve respectively with it is corresponding
The oil inlet of switching on and off pilot valve communicate and the secondary valve control chamber of switching on and off secondary valve is by equipped with throttle structure
Communicating passage is connected to the high pressure chest of main valve；The oil inlet of combined floodgate secondary valve is connected to the high pressure chest on valve body of main valve, main valve control
Chamber processed is connected to the oil inlet of the oil outlet of combined floodgate secondary valve and separating brake secondary valve, the oil outlet of separating brake secondary valve and main valve it is low
Press chamber connection.
6. hydraulic actuating mechanism according to claim 5, it is characterised in that：The valve chamber of the secondary valve is arranged in main valve
On valve body of main valve.
7. hydraulic actuating mechanism according to claim 5 or 6, it is characterised in that：The combined floodgate pilot valve includes closing a floodgate first
Pilot valve seat, combined floodgate guide's valve base docking ground are arranged on valve body of main valve, and the throttle structure is arranged in combined floodgate pilot valve
On the interface of valve seat and valve body of main valve；The separating brake pilot valve includes separating brake guide's valve base, the docking of separating brake guide's valve base
Ground is arranged on valve body of main valve, and the throttle structure is arranged on the interface of separating brake guide valve base and valve body of main valve.
8. hydraulic actuating mechanism according to claim 7, it is characterised in that：The secondary valve includes two level valve regulation
Seat, secondary valve adjustment seat it is corresponding close to one end of secondary valve control chamber with two level valve core and by helicitic texture spinning in guide
On valve base, the spring on the secondary valve is arranged between two level valve core and secondary valve adjustment seat.
9. breaker, including hydraulic actuating mechanism, hydraulic actuating mechanism includes hydraulic control valve, and hydraulic control valve includes main valve,
Main valve includes the main valve control chamber that low pressure chamber, high pressure chest, main valve signal chamber and the spool for control bound act, and feature exists
In：Hydraulic control valve further includes combined floodgate pilot valve, combined floodgate secondary valve, separating brake pilot valve, separating brake secondary valve；Combined floodgate pilot valve and point
Lock pilot valve includes oil inlet and the drain tap for being connected to fuel tank；Combined floodgate secondary valve and separating brake secondary valve include valve chamber and
It is slidingly sealed the two level valve core being arranged in valve chamber, valve chamber includes the secondary valve control being arranged at the axial both ends of two level valve core
The side wall of chamber and oil suction chamber processed, oil suction chamber is equipped with oil inlet and is equipped with oil outlet, two level backwards to one end of secondary valve control chamber
The one end of valve core by spring compression on oil outlet and in oil suction chamber has pressure-bearing end face；Switching on and off secondary valve
Secondary valve control chamber is communicated with the oil inlet of corresponding switching on and off pilot valve respectively and the secondary valve of switching on and off secondary valve controls
Chamber is connected to by the communicating passage equipped with throttle structure with the high pressure chest of main valve；The oil inlet and valve body of main valve of combined floodgate secondary valve
On high pressure chest connection, main valve control chamber is connected to the oil inlet of the oil outlet of combined floodgate secondary valve and separating brake secondary valve, separating brake two
The oil outlet of step valve is connected to the low pressure chamber of main valve.
10. breaker according to claim 9, it is characterised in that：The main valve in main valve is arranged in the valve chamber of the secondary valve
On valve body.
11. breaker according to claim 9 or 10, it is characterised in that：The combined floodgate pilot valve includes combined floodgate pilot valve
Valve seat, combined floodgate guide's valve base docking ground are arranged on valve body of main valve, and the throttle structure is arranged in combined floodgate guide's valve base
With on the interface of valve body of main valve；The separating brake pilot valve includes separating brake guide's valve base, is set to the docking of separating brake guide's valve base
It sets on valve body of main valve, the throttle structure is arranged on the interface of separating brake guide valve base and valve body of main valve.
12. breaker according to claim 11, it is characterised in that：The secondary valve includes secondary valve adjustment seat, and two
Step valve adjustment seat it is corresponding close to one end of secondary valve control chamber with two level valve core and by helicitic texture spinning in pilot valve valve
On seat, the spring on the secondary valve is arranged between two level valve core and secondary valve adjustment seat.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611228733.6A CN106783422B (en) | 2016-12-27 | 2016-12-27 | Hydraulic control valve and hydraulic actuating mechanism, breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611228733.6A CN106783422B (en) | 2016-12-27 | 2016-12-27 | Hydraulic control valve and hydraulic actuating mechanism, breaker |
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| Publication Number | Publication Date |
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| CN106783422A CN106783422A (en) | 2017-05-31 |
| CN106783422B true CN106783422B (en) | 2018-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611228733.6A Active CN106783422B (en) | 2016-12-27 | 2016-12-27 | Hydraulic control valve and hydraulic actuating mechanism, breaker |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552924B (en) * | 2018-06-04 | 2021-07-02 | 平高集团有限公司 | Hydraulic operating mechanism, control valve and main valve of control valve |
| CN109764152A (en) * | 2018-12-19 | 2019-05-17 | 河南平高电气股份有限公司 | A kind of hydraulic actuating mechanism and its hydraulic control valve |
| CN112443526B (en) * | 2020-10-26 | 2023-09-29 | 国网上海市电力公司 | Circuit breaker, hydraulic control valve and hydraulic operating mechanism |
| CN112392789B (en) * | 2020-10-26 | 2022-01-28 | 平高集团有限公司 | Hydraulic control valve, hydraulic operating mechanism using same and circuit breaker |
| CN112648251B (en) * | 2020-12-22 | 2023-04-28 | 天水锻压机床(集团)有限公司 | Automatic fluid infusion hydraulic valve of accumulator for large bending machine |
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| CN104358728A (en) * | 2014-11-04 | 2015-02-18 | 浙江大学 | Secondary load control valve integrating overflow function on pilot valve core |
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| CN2391295Y (en) * | 1999-09-01 | 2000-08-09 | 北京开关厂 | Double split switch device for combined electric appliance operating mechanism |
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| CN104896141B (en) * | 2014-03-08 | 2018-01-09 | 温州益坤电气有限公司 | A kind of high oil pressure big orifice combined directional valve of power high voltage switch hydraulic mechanism |
| CN204851819U (en) * | 2015-06-30 | 2015-12-09 | 河南平高电气股份有限公司 | Control valve and use circuit breaker hydraulic pressure operating mechanism of this control valve |
| CN205371133U (en) * | 2015-11-06 | 2016-07-06 | 河南平芝高压开关有限公司 | Pile -up valve and use circuit breaker hydraulic actuating mechanism of this pile -up valve |
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| CN2306355Y (en) * | 1997-05-04 | 1999-02-03 | 刘中亚 | Spring energy-storage hydraulic operating mechanism for medium-high voltage circuit breaker |
| CN104358728A (en) * | 2014-11-04 | 2015-02-18 | 浙江大学 | Secondary load control valve integrating overflow function on pilot valve core |
| CN205715794U (en) * | 2016-05-05 | 2016-11-23 | 黎明液压科技有限公司 | Hydraulic actuating mechanism two grades of reversing arrangements of band complex function |
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| CN106783422A (en) | 2017-05-31 |
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