CN106783422A - Hydraulic control valve and hydraulic actuating mechanism, breaker - Google Patents
Hydraulic control valve and hydraulic actuating mechanism, breaker Download PDFInfo
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- CN106783422A CN106783422A CN201611228733.6A CN201611228733A CN106783422A CN 106783422 A CN106783422 A CN 106783422A CN 201611228733 A CN201611228733 A CN 201611228733A CN 106783422 A CN106783422 A CN 106783422A
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- Prior art keywords
- valve
- combined floodgate
- main
- secondary valve
- chamber
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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
-
- 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, breaker；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 provided with low pressure chamber, high pressure chest, main valve signal chamber and main valve control chamber；Point, combined floodgate secondary valve control chamber respectively with point, combined floodgate pilot valve oil inlet communicate and point, combined floodgate secondary valve control chamber connects by being provided with the communicating passage of throttle structure with the high pressure chest of main valve；The oil inlet of combined floodgate secondary valve is connected with the high pressure chest on valve body of main valve, and main valve control chamber is connected with the oil-out of combined floodgate secondary valve and the oil inlet of separating brake secondary valve, and the oil-out of separating brake secondary valve is connected with the low pressure chamber of main valve；Big with main valve nominal flow rate compared to existing hydraulic control valve, the advantage of valve core of main valve driving force foot can be good at being applied to the operating mechanism of relatively high power.
Description
Technical field
Grasped the present invention relates to a kind of hydraulic control valve on primary cut-out 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, for separating brake or combined floodgate order electricity that control room is sent
Signal is converted to hydraulic pressure signal, and control operating mechanism carries out separating brake, closes a floodgate and automatic reclosing action, drives breaker body reality
Existing separating brake, combined floodgate and automatic reclosing operation.
Such as notification number is CN101916676B, the applying date 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, making electromagnet, tripping electromagnet I, it is nested in valve body of main valve
Left and right valve pocket is provided with, low pressure volumes, signal cavity, high-pressure chamber are provided with main valve valve pocket, wherein low pressure volumes connect with fuel tank
Logical, high-voltage oil cavity keeps logical hydraulic oil, the fluid in signal cavity to change with main valve events；It is respectively equipped with left and right valve pocket
Left and right valve rod, left and right valve rod forms valve core of main valve, and the is provided with one end near electromagnet of valve core of main valve in main valve valve pocket
Binary signal chamber, the oil pressure state control bound valve element in secondary signal chamber acts to form main valve control chamber；Carrying out closing operation
When, making electromagnet obtains electric, and the hydraulic oil in high-pressure chamber enters main valve control chamber, and hydraulic oil promotes 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 is connected with main valve signal chamber, hydraulic oil
Enter in operating mechanism control loop via main valve signal chamber, complete feed motion；When sub-switching operation is carried out, tripping electromagnet
I obtains electric, and the hydraulic 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 and main valve low pressure chamber are turned on, operating mechanism control loop
In hydraulic oil enter fuel tank via main valve signal chamber, realize sub-switching operation.
In the operating mechanism for controlling some power larger, main valve needs larger stream to above-mentioned existing hydraulic control valve
Amount, it is therefore desirable to which hydraulic pressure and larger valve core of main valve higher, this action for allowing for valve core of main valve needs 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 the operating mechanism that power is larger.
The content of the invention
It is an object of the invention to provide a kind of hydraulic control valve, be used to solve existing hydraulic control valve be difficult to be applied to compared with
The problem of powerful operating mechanism；The present invention also aims to provide a kind of hydraulic operating for having used the hydraulic control valve
Mechanism and breaker.
To achieve the above object, the first technical scheme of hydraulic control valve of the invention is：Hydraulic control valve includes master
Valve, main valve includes the main valve control chamber of low pressure chamber, high pressure chest, main valve signal chamber and the valve element action for control bound, hydraulic pressure
Control valve also 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 connecting fuel tank；Combined floodgate secondary valve and separating brake secondary valve include valve pocket and slide close
Envelope is arranged on secondary valve valve element in valve pocket, valve pocket include the secondary valve control chamber at the axial two ends for being arranged on secondary valve valve element and
Oil suction chamber, the side wall of oil suction chamber is provided with oil inlet and dorsad one end of secondary valve control chamber is provided with oil-out, secondary valve valve element
There is pressure-bearing end face by the one end of spring compression on oil-out and in oil suction chamber；Point, the secondary valve of combined floodgate secondary valve
Control chamber is communicated and divided with the oil inlet of corresponding point, combined floodgate pilot valve respectively, the secondary valve control chamber of combined floodgate secondary valve is led to
Cross and be provided with the communicating passage of throttle structure and connected with the high pressure chest of main valve；Height on the oil inlet and valve body of main valve of combined floodgate secondary valve
Pressure chamber connection, main valve control chamber is connected with the oil-out of combined floodgate secondary valve and the oil inlet of separating brake secondary valve, separating brake secondary valve
Oil-out is connected with the low pressure chamber of main valve.
Second technical scheme of hydraulic control valve of the invention be：The first skill of hydraulic control valve of the invention
Hydraulic control valve described in art scheme, the valve pocket of the secondary valve is arranged on the valve body of main valve of main valve.
The third technical scheme of hydraulic control valve of the invention is：The first of hydraulic control valve of the invention or
Hydraulic control valve described in two kinds of technical schemes, described pilot valve includes guide's valve base, and guide's valve base docking ground is set
On valve body of main valve, described throttle structure is arranged on the interface of guide's valve base and valve body of main valve.
4th kind of technical scheme of hydraulic control valve of the invention be：The third skill of hydraulic control valve of the invention
Hydraulic control valve described in art scheme, described secondary valve includes secondary valve adjustment seat, secondary valve adjustment seat and secondary valve valve element
Near secondary valve control chamber one end correspondence and by the first pilot valve seat of helicitic texture spinning, the spring on the secondary valve
It is arranged between secondary valve valve element and secondary valve adjustment seat.
The first technical scheme of hydraulic actuating mechanism of the invention is：Hydraulic actuating mechanism includes hydraulic control valve, liquid
Pressure control valve includes main valve, and main valve includes the master of low pressure chamber, high pressure chest, main valve signal chamber and the valve element action for control bound
Valve control chamber, hydraulic control valve also includes 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 connecting fuel tank with separating brake pilot valve；Combined floodgate secondary valve and separating brake secondary valve include
Valve pocket includes being arranged on the two of the axial two ends of secondary valve valve element with the secondary valve valve element being arranged in valve pocket, valve pocket is slidingly sealed
Step valve control chamber and oil suction chamber, the side wall of oil suction chamber is provided with oil inlet and dorsad one end of secondary valve control chamber is provided with fuel-displaced
Mouthful, the one end of secondary valve valve element by spring compression on oil-out and in oil suction chamber has pressure-bearing end face；Point, close a floodgate two
The secondary valve control chamber of step valve communicated with the oil inlet of corresponding point, combined floodgate pilot valve respectively and point, two grades of combined floodgate secondary valve
Valve control chamber is connected by being provided with the communicating passage of 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 is connected with the oil-out of combined floodgate secondary valve and the oil inlet of separating brake secondary valve,
The oil-out of separating brake secondary valve is connected with the low pressure chamber of main valve.
Second technical scheme of hydraulic actuating mechanism of the invention be：The first of hydraulic actuating mechanism of the invention
The hydraulic actuating mechanism described in technical scheme is planted, the valve pocket of the secondary valve is arranged on the valve body of main valve of main valve.
The third technical scheme of hydraulic actuating mechanism of the invention is：The first of hydraulic actuating mechanism of the invention
Or the hydraulic actuating mechanism described in second technical scheme, described pilot valve includes guide's valve base, the docking of guide's valve base
Be arranged on valve body of main valve, described throttle structure is arranged on the interface of guide's valve base and valve body of main valve.
4th kind of technical scheme of hydraulic actuating mechanism of the invention be：The 3rd of hydraulic actuating mechanism of the invention
Hydraulic actuating mechanism described in kind of technical scheme, described secondary valve includes secondary valve adjustment seat, secondary valve adjustment seat with two grades
Valve core near secondary valve control chamber one end correspondence and by the first pilot valve seat of helicitic texture spinning, on the secondary valve
Spring be arranged between secondary valve valve element and secondary valve adjustment seat.
The first technical scheme of breaker of the 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 valve element action main valve control chamber, hydraulic control valve also 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 connecting fuel tank with separating brake pilot valve；Close a floodgate two grades
Valve and separating brake secondary valve include valve pocket and are slidingly sealed the secondary valve valve element being arranged in valve pocket, and valve pocket includes being arranged on two grades
The secondary valve control chamber and oil suction chamber at the axial two ends of valve core, the side wall of oil suction chamber are provided with oil inlet and dorsad secondary valve control
The one end in chamber processed is provided with oil-out, and the one end of secondary valve valve element by spring compression on oil-out and in oil suction chamber has
Pressure-bearing end face；Point, the secondary valve control chamber of combined floodgate secondary valve communicated with the oil inlet of corresponding point, combined floodgate pilot valve respectively and
Divide, the secondary valve control chamber of combined floodgate secondary valve is connected by being provided with the communicating passage of throttle structure with the high pressure chest of main valve；Close
The oil inlet of lock secondary valve is connected with the high pressure chest on valve body of main valve, the oil-out and separating brake of main valve control chamber and combined floodgate secondary valve
The oil inlet connection of secondary valve, the oil-out of separating brake secondary valve is connected with the low pressure chamber of main valve.
Second technical scheme of breaker of the invention be：The first technical scheme institute of breaker of the invention
The breaker stated, the valve pocket of the secondary valve is arranged on the valve body of main valve of main valve.
The third technical scheme of breaker of the invention is：First or second technology of breaker of the invention
Breaker described in scheme, described pilot valve includes guide's valve base, is arranged on valve body of main valve to the docking of guide's valve base,
Described throttle structure is arranged on the interface of guide's valve base and valve body of main valve.
4th kind of technical scheme of breaker of the invention be：The third technical scheme institute of breaker of the invention
The breaker stated, described secondary valve includes secondary valve adjustment seat, and secondary valve adjustment seat is with secondary valve valve element near secondary valve control
The one end in 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 on secondary valve
Between valve element and secondary valve adjustment seat.
The beneficial effects of the invention are as follows：Using the three-level valve arrangement amplified into series connection by main valve, secondary valve and pilot valves,
The nominal flow rate of hydraulic control valve is improved, the action of secondary valve valve element is adjusted with throttling arrangement, by the action control of secondary valve core
Oil pressure in main valve control chamber processed, so control bound valve element action, realize main valve signal chamber in main valve high pressure chest and main valve
Switching between low pressure chamber, realization point, closing operation；Compared to existing hydraulic control valve, hydraulic control valve energy of the invention
Enough operating mechanisms for being applied to relatively high power well.
Further, the valve pocket 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
Level valve core near secondary valve control chamber one end correspondence and by the first pilot valve seat of helicitic texture spinning, secondary valve spring
It is arranged between secondary valve valve element 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.
Brief description of the drawings
Fig. 1 be hydraulic control valve of the present invention specific embodiment be in gate-dividing state when schematic diagram；
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- making electromagnets, 2- combined floodgates pilot valve, 3- combined floodgate guides valve base, 4- combined floodgates secondary valve, 5- valve body of main valve,
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 pilot valves
II, 12- separating brake guide valve base, 13- tripping electromagnet I, 14- tripping electromagnet II, 15- locking nut, 16- adjustment seats, 17-
Secondary valve spring, 18- secondary valves valve element, 19- secondary valves valve pocket, 31- restrictor rings, 201- combined floodgate pilot valves valve port, 202- close a floodgate
Pilot valve outlet, the import of 203- combined floodgate pilot valves, 401 combined floodgate secondary valve valve ports, 402- combined floodgate secondary valve signals chamber, 403- close a floodgate
Secondary valve import, the outlet of 404- combined floodgates secondary valve, 101- separating brake pilot valve I valve ports, 102- separating brake pilot valves I outlet, 103- divide
Lock pilot valve I imports, 111- separating brake pilot valve II valve ports, 112- separating brake pilot valves II outlets, 113- separating brake pilot valve II imports,
901- separating brake secondary valves valve port, 902- separating brake secondary valve signals chamber, the import of 903- separating brake secondary valves, 904- separating brake secondary valves go out
Mouth, 501- high-voltage oil cavities, 502- low pressure oil pocket, 503- main valve signals chamber, 504- main valve control chambers.
Specific embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment of hydraulic control valve of the invention, as shown in Figures 1 to 4, including main valve and is arranged on main valve
Point, closing 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 valve core of main valve 7 is oriented to and is installed on two main valve valve pockets simultaneously
Formed with corresponding main valve valve pocket contact position by sealing ring and be slidingly sealed；Valve body of main valve 5 is provided 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 provided with main valve control chamber 504.
Described closing control device includes making 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 3 pairs of ground connection of combined floodgate guide valve base are arranged on the left side at the top of valve body of main valve 5；Close
Lock electromagnet 1 is arranged on the left side side wall of combined floodgate guide valve base 3, the valve element of combined floodgate pilot valve 2 and the rank of making electromagnet 1
Iron is corresponded to up and down；Combined floodgate Pilot valve outlet 202 is connected with fuel tank.
Such as Fig. 3, combined floodgate secondary valve 4 is nested on valve body of main valve 5, and in the lower section of combined floodgate guide valve base 3；Combined floodgate two
Step valve 4 includes secondary valve valve element 18, secondary valve valve pocket 19 and secondary valve spring 17, the lower end of secondary valve valve element 18 and secondary valve valve pocket
Combined floodgate secondary valve valve port 401 is formed at 19 top pressures, is spaced to be formed between secondary valve valve element 18 and secondary valve valve pocket 19 and is closed a floodgate two grades
Valve import 403, one end of the close combined floodgate secondary valve import 403 of secondary valve valve element 18 has pressure-bearing end face 405；Secondary valve valve pocket
Cavity in 19 in the top of secondary valve valve element 4 forms combined floodgate secondary valve signal chamber 402, in secondary valve valve element in secondary valve valve pocket 19
The cavity of 4 lower sections forms combined floodgate secondary valve outlet 404.
On combined floodgate guide valve base 3 adjustment seat 16, secondary valve valve are provided with secondary valve valve element in corresponding position about 18
The shrinkage pool installed for secondary valve spring 17 is respectively equipped with core 18 and adjustment seat 16, secondary valve spring 17 is arranged on the He of adjustment seat 16
Between secondary valve valve element 18；Adjustment seat 16 is fixed beyond the one end of combined floodgate guide valve base 3 by locking nut 15.
Combined floodgate secondary valve signal chamber 402 connects with combined floodgate pilot valve import 201, combined floodgate secondary valve signal chamber 402 and close a floodgate
Secondary valve import 403 is connected with the low pressure oil pocket 502 of main valve respectively, the low pressure oil pocket of combined floodgate secondary valve signal chamber 402 and main valve
Oil passage between 502 is provided with restrictor ring 31, and it is right with valve body of main valve 5 that restrictor ring 31 is arranged on combined floodgate guide valve base 3
At junction, restrictor ring 31 is provided with throttle orifice, and combined floodgate secondary valve outlet 404 is connected with main valve control chamber 504.
Described 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 with separating brake pilot valve II11 structures, tripping electromagnet II14
With separating brake pilot valve II11 as standby；Separating brake pilot valve I10 and separating brake pilot valve II11 shares separating brake guide valve base 12, point
12 pairs of ground connection of lock guide valve base are arranged on the right side at the top of valve body of main valve 5, such as Fig. 2, tripping electromagnet I13 and tripping electromagnet
II14 sets up separately on the left and right side wall of separating brake guide valve base 12.
The valve element of separating brake pilot valve I10 and the valve element of separating brake pilot valve II11 are electric with tripping electromagnet I13 and separating brake respectively
Magnet II14 correspondences；The outlet 102 of separating brake pilot valve I10 and the outlet 112 of separating brake pilot valve II11 are connected with 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 with the structure of combined floodgate secondary valve 4, separating brake secondary valve signal chamber 902 respectively with separating brake pilot valve
The import 103 of I10 is connected with the import 113 of separating brake pilot valve II11；Separating brake secondary valve import 903 is exported with combined floodgate secondary valve
404 connections, separating brake secondary valve outlet 904 is connected with main valve low pressure oil pocket 502, separating brake secondary valve signal chamber 902 and main valve high pressure
Restrictor ring 31 also is provided with oil passage between oil pocket 501, restrictor ring 31 is arranged on separating brake guide valve base 12 and main valve valve
At the interface of body 5, restrictor ring 31 is provided with restriction.
When carrying out closing operation, making electromagnet 1 obtains electric, and making electromagnet 1 pushes down on the valve element of combined floodgate pilot valve 2,
Combined floodgate pilot valve valve port 201 is opened, and the hydraulic oil in combined floodgate secondary valve signal chamber 402 flows out via combined floodgate pilot valve valve port 201,
Oil pressure compensation is limited by restrictor ring 31 in combined floodgate secondary valve signal chamber 402, and oil pressure gos up in combined floodgate secondary valve signal chamber 402
Relatively slow, less than the oil pressure in combined floodgate secondary valve import 403, secondary valve valve element 18 exists the oil pressure in combined floodgate secondary valve signal chamber 402
Overcome in the presence of hydraulic oil and moved on the active force of secondary valve spring 17, combined floodgate secondary valve valve port 401 is opened, main valve high-voltage oil cavity
Hydraulic oil in 501 enters in main valve control chamber 504 via combined floodgate secondary valve import 401, and hydraulic oil promotes valve core of main valve 7 to the right
Mobile, the boss in the middle of valve core of main valve 7 separates main valve signal chamber 503 and low pressure oil pocket 502, at the same by high-voltage oil cavity 501 and
Main valve signal chamber 503 connects, and hydraulic oil enters operating mechanism control loop via main valve signal chamber 503, realizes closing a floodgate.
After the completion of combined floodgate, the dead electricity of making electromagnet 1, combined floodgate pilot valve core resets under the action of the spring, combined floodgate guide
Valve valve port 201 is closed, and high pressure is gradually recovered in combined floodgate secondary valve signal chamber 402, the oil pressure balance of the upper and lower side of secondary valve valve element 18,
In the presence of secondary valve spring 17, secondary valve valve element 18 is moved down, and is re-closing off combined floodgate secondary valve valve port 401, and control valve is protected
Hold in "on" position.
When carrying out sub-switching operation, tripping electromagnet I13 obtains electric, and the valve port 101 of separating brake pilot valve I10 is opened, two grades of separating brake
Oil pressure reduction in valve signal chamber 902, the valve element of separating brake secondary valve 9 in the presence of the hydraulic oil on move, separating brake secondary valve valve port
901 open, and the hydraulic oil in main valve control chamber 504 enters in main valve low pressure oil pocket 502 via separating brake secondary valve valve port 901, main
Valve control chamber 504 loses high pressure, and valve core of main valve 7 moves right rapidly, and the boss in the middle of 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 is connected with main valve signal chamber 503, in operating mechanism control loop
Hydraulic 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 are closed, and the pressure of the upper and lower oil pocket of the valve element of separating brake secondary valve 9 is gradually balanced, and separating brake secondary valve valve element is in separating brake secondary valve spring
In the presence 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 by turn adjustment seat 16, can be adjusted, secondary valve is adjusted
The time that valve element is opened, and then the time of the action of valve core of main valve 7 is adjusted, realize the tune to operating mechanism point, feed motion time
Section.
In the specific embodiment of hydraulic actuating mechanism of the invention, hydraulic actuating mechanism includes hydraulic control valve, in this reality
Apply in example, in addition to hydraulic control valve, other components of operating mechanism are identical with corresponding component in existing operating mechanism；This
The structure of the hydraulic control valve in embodiment is identical with the structure of any embodiment of the hydraulic control valve of the invention described above, no longer
Repeat specification.
The specific embodiment of breaker of the 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 with corresponding component in existing breaker；
The structure of the hydraulic control valve in the present embodiment is identical with the structure of any embodiment of the hydraulic control valve of the invention described above, 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 also 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 connecting fuel tank with separating brake pilot valve；Combined floodgate two
Step valve and separating brake secondary valve include valve pocket and are slidingly sealed the secondary valve valve element being arranged in valve pocket, and valve pocket includes being arranged on two
The secondary valve control chamber and oil suction chamber at the axial two ends of level valve core, the side wall of oil suction chamber are provided with oil inlet and dorsad secondary valve
One end of control chamber is provided with oil-out, and the one end of secondary valve valve element by spring compression on oil-out and in oil suction chamber has
There is pressure-bearing end face；Point, the secondary valve control chamber of combined floodgate secondary valve communicated with the oil inlet of corresponding point, combined floodgate pilot valve respectively and
Divide, the secondary valve control chamber of combined floodgate secondary valve is connected by being provided with the communicating passage of throttle structure with the high pressure chest of main valve；Close
The oil inlet of lock secondary valve is connected with the high pressure chest on valve body of main valve, the oil-out and separating brake of main valve control chamber and combined floodgate secondary valve
The oil inlet connection of secondary valve, the oil-out of separating brake secondary valve is connected with the low pressure chamber of main valve.
2. hydraulic control valve according to claim 1, it is characterised in that：The valve pocket of the secondary valve is arranged on the master of main valve
On valve body.
3. hydraulic control valve according to claim 1 and 2, it is characterised in that：Described pilot valve includes guide's valve base,
It is arranged on valve body of main valve to the docking of guide's valve base, it is right with valve body of main valve that described throttle structure is arranged on guide's valve base
In junction.
4. hydraulic control valve according to claim 3, it is characterised in that：Described secondary valve includes secondary valve adjustment seat,
Secondary valve adjustment seat and secondary valve valve element near one end of secondary valve control chamber it is corresponding and by helicitic texture spinning in pilot valve
On valve seat, the spring on the secondary valve is arranged between secondary valve valve element 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 the main valve control chamber of the valve element action for control bound, it is characterised in that：Hydraulic control valve also 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 connecting fuel tank；Combined floodgate secondary valve and separating brake secondary valve include valve pocket and are slidingly sealed to be arranged in valve pocket
Secondary valve valve element, valve pocket includes the secondary valve control chamber and oil suction chamber at the axial two ends for being arranged on secondary valve valve element, oil suction chamber
Side wall is provided with oil inlet and dorsad one end of secondary valve control chamber is provided with oil-out, and secondary valve valve element is being gone out by spring compression
One end on hydraulic fluid port and in oil suction chamber has pressure-bearing end face；Point, the secondary valve control chamber of combined floodgate secondary valve respectively with it is corresponding
Point, the oil inlet of combined floodgate pilot valve communicate and point, the secondary valve control chamber of combined floodgate secondary valve is by being provided with throttle structure
Communicating passage is connected with the high pressure chest of main valve；The oil inlet of combined floodgate secondary valve is connected with the high pressure chest on valve body of main valve, main valve control
Chamber processed connects with the oil-out of combined floodgate secondary valve and the oil inlet of separating brake secondary valve, and the oil-out of separating brake secondary valve is low with main valve
The connection of pressure chamber.
6. hydraulic actuating mechanism according to claim 5, it is characterised in that：The valve pocket of the secondary valve is arranged on main valve
On valve body of main valve.
7. the hydraulic actuating mechanism according to claim 5 or 6, it is characterised in that：Described pilot valve includes pilot valve valve
Seat, is arranged on valve body of main valve to the docking of guide's valve base, and described throttle structure is arranged on guide's valve base and valve body of main valve
Interface on.
8. hydraulic actuating mechanism according to claim 7, it is characterised in that：Described secondary valve is adjusted including secondary valve
Seat, one end of the close secondary valve control chamber of secondary valve adjustment seat and secondary valve valve element it is corresponding and by helicitic texture spinning in guide
On valve base, the spring on the secondary valve is arranged between secondary valve valve element 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 of low pressure chamber, high pressure chest, main valve signal chamber and the valve element action for control bound, and its feature exists
In：Hydraulic control valve also 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 connecting fuel tank；Combined floodgate secondary valve and separating brake secondary valve include valve pocket and
The secondary valve valve element being arranged in valve pocket is slidingly sealed, valve pocket includes the secondary valve control at the axial two ends for being arranged on secondary valve valve element
Chamber processed and oil suction chamber, the side wall of oil suction chamber is provided with oil inlet and dorsad one end of secondary valve control chamber is provided with oil-out, two grades
The one end of valve core by spring compression on oil-out and in oil suction chamber has pressure-bearing end face；Point, combined floodgate secondary valve
Secondary valve control chamber is communicated and divided with the oil inlet of corresponding point, combined floodgate pilot valve respectively, the secondary valve control of combined floodgate secondary valve
Chamber is connected by being provided with the communicating passage of 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 connects with the oil-out of combined floodgate secondary valve and the oil inlet of separating brake secondary valve, separating brake two
The oil-out of step valve is connected with the low pressure chamber of main valve.
10. breaker according to claim 9, it is characterised in that：The valve pocket of the secondary valve is arranged on the main valve of main valve
On valve body.
11. breaker according to claim 9 or 10, it is characterised in that：Described pilot valve includes guide's valve base, first
Pilot valve seat is arranged on valve body of main valve to ground connection, and described throttle structure is arranged on docking for guide's valve base and valve body of main valve
On face.
12. breakers according to claim 11, it is characterised in that：Described secondary valve includes secondary valve adjustment seat, two
Step valve adjustment seat and secondary valve valve element near one end of secondary valve control chamber it is corresponding and by helicitic texture spinning in pilot valve valve
On seat, the spring on the secondary valve is arranged between secondary valve valve element and secondary valve adjustment seat.
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| CN201611228733.6A CN106783422B (en) | 2016-12-27 | 2016-12-27 | Hydraulic control valve and hydraulic actuating mechanism, breaker |
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| CN201611228733.6A CN106783422B (en) | 2016-12-27 | 2016-12-27 | Hydraulic control valve and hydraulic actuating mechanism, breaker |
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Cited By (5)
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| 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 |
| CN110552924A (en) * | 2018-06-04 | 2019-12-10 | 平高集团有限公司 | Hydraulic operating mechanism, control valve and main valve of control valve |
| CN112392789A (en) * | 2020-10-26 | 2021-02-23 | 平高集团有限公司 | Hydraulic control valve, hydraulic operating mechanism using same and circuit breaker |
| CN112443526A (en) * | 2020-10-26 | 2021-03-05 | 国网上海市电力公司 | Circuit breaker, hydraulic control valve and hydraulic operating mechanism |
| CN112648251A (en) * | 2020-12-22 | 2021-04-13 | 天水锻压机床(集团)有限公司 | Automatic liquid supplementing hydraulic valve of energy accumulator for large-scale bending machine |
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| CN112648251A (en) * | 2020-12-22 | 2021-04-13 | 天水锻压机床(集团)有限公司 | Automatic liquid supplementing hydraulic valve of energy accumulator for large-scale bending machine |
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|---|---|
| CN106783422B (en) | 2018-09-21 |
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