CN104896141B - A kind of high oil pressure big orifice combined directional valve of power high voltage switch hydraulic mechanism - Google Patents
A kind of high oil pressure big orifice combined directional valve of power high voltage switch hydraulic mechanism Download PDFInfo
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- CN104896141B CN104896141B CN201410089747.9A CN201410089747A CN104896141B CN 104896141 B CN104896141 B CN 104896141B CN 201410089747 A CN201410089747 A CN 201410089747A CN 104896141 B CN104896141 B CN 104896141B
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- valve
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- valve body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Magnetically Actuated Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The present invention relates to reversal valve, the high oil pressure big orifice combined directional valve of particularly a kind of power high voltage switch hydraulic mechanism.Including valve body (10), end cap (11), valve element (6), valve body asphalt channel and valve body auxiliary body, valve body auxiliary body is electromagnetic priority valve, on valve body (10), it is connected respectively with 0 mouthful on valve body (10), P mouths and M chambers by oil circuit, (4) is blocked up by ball with the oil circuit on valve body (10) and externally ended；Valve body (10) inner chamber is provided with short valve pocket (5), valve element (6) and long valve pocket (7), and it is sealingly mounted at by end cap (11) in valve body (10) inner chamber, the cooperation of each valve pocket and valve body (10) is to inlay cooperation and sealed by seal (9), and valve element (6) moves left and right between length valve pocket (5,7) inner chamber.It is an advantage of the invention that being the innovative design of valve inner structure, reversal valve is adapted to high oil pressure as one and reach 60Mpa, conversion mouth turns into big orifice, and conversion speed reaches the combined directional valve of Millisecond.
Description
Technical field
The present invention relates to hydraulic directio to control valve element, the high oil pressure of particularly a kind of power high voltage switch hydraulic mechanism
Big orifice combination commutation.
Background technology
In the prior art, engineering is usually 31.5Mpa with hydraulic pressure reversing control valve highest operating oil pressure, and oil stream latus rectum exists
Below 10mm, the conversion time of commutation control are not applied for power system high pressure or extra-high voltage switch with high-power more than 15ms
Requirement of the hydraulic actuating mechanism to the high oil pressure big orifice of hydraulic control.Through retrieving, combined directional valve application national patent
There are 5, a patent of invention, 4 utility models, all structure without reference to high oil pressure big orifice.Such as Patent No.
201220089368.6 combined directional valves, it is intended merely to solve the problems such as oil circuit existing for prior art is complicated, loosely organized.
The content of the invention
The purpose of the present invention is to be directed to drawbacks described above, there is provided a kind of high oil pressure big orifice of power high voltage switch hydraulic mechanism
Combined directional valve.Extra-high voltage switch hydraulic mechanism use is also suitable, up to 40-60Mpa, latus rectum changes in more than 13mm operating oil pressure
It is less than 10ms to control conversion time.
The technical scheme is that a kind of high oil pressure big orifice combined directional valve of power high voltage switch hydraulic mechanism, bag
Include valve body 10, end cap 11, valve element 6, valve body asphalt channel and the auxiliary body for electromagnetic pilot control, it is characterised in that：
A, described valve body auxiliary body is electromagnetic priority valve, on valve body 10, by oil circuit respectively with valve body 10
On O mouths, P mouths be connected with M chambers, with the oil circuit on valve body 10 by ball block up 4 externally cut-off；
B, the described inner chamber of valve body 10 is provided with short valve pocket 5, valve element 6 and long valve pocket 7, and is sealingly mounted at by end cap 11
In the inner chamber of valve body 10, the cooperation of each valve pocket and valve body 10 is to inlay cooperation and sealed by seal 9, and the right-hand member of valve element 6 is
Piston-type structure, soft sealer sealing structure thereon are slidingly sealed with the long inwall of valve pocket 7 composition；Valve element 6 is in length valve pocket
It can be moved left and right between (5,7) inner chamber, form system and close a floodgate and separating brake two states；
C, on combined floodgate pilot valve after electricity, M chamber oilings, valve element 6 is quickly moved to the left, by being arranged on the left end of valve element 6
Soft sealer closes O mouths asphalt channel, the annular oil flow channel and A mouth streams that P mouths hydraulic oil passes through the long left side of valve pocket 7
Logical, system is "on" position；When described valve element 6 is moved to the left terminated site, long valve pocket 7 and the right-hand member piston seal of valve element 6
It is axially arranged on the inwall local location of cooperation to have at least one trickle oil flow channel, make between the N chambers and M chambers that are communicated with P mouths
With trickle insertion "on" position can be maintained stable；
D, on separating brake pilot valve after electricity, the quick draining of M chambers, valve element 6 quickly moves right, above-mentioned trickle breakthrough status with
Valve element 6 moves right and ended, and N chambers and M chambers are completely isolated, and M chambers are in low-pressure state, the spherical surface body that the middle part of valve element 6 is set with
The long left side valve port of valve pocket 7 is in contact P mouths and the closing of N chambers, and A mouths oil stream is connected by short 5 annular oil flow channel of valve pocket and O mouths
Logical, system is gate-dividing state；
E, the right end of described valve element 6 is provided with buffering projection and is arranged on the structure of cushion collar 8 of the long right-hand member inner chamber of valve pocket 7
Coordinate into gap, projection is buffered when valve element 6 moves right close to stop bit and is disclosed in the centre bore of cushion collar 8, forms throttling
Buffer structure.
Described soft sealer, it is one end that valve element 6 is engaged with short valve pocket 5, is special-shaped Glais ring soft sealer；
When valve element 6 is moved left and right to stop bit, the annular oil flow channel that is penetrated on long valve pocket 7 or short valve pocket 5, its latus rectum reaches Φ 13mm
More than, it is 40-60MPa that system, which bears operating oil pressure,.
The described middle part of valve element 6 and the long end face sealing valve port of valve pocket 7 are spherical structure.
The gap that projection and the centre bore of cushion collar 8 are buffered in described throttle buffering structure is 10-20 μm.
It is arranged to cylindrical structure at the valve port position for closing short valve pocket 5 or long valve pocket 7 on described valve element 6.
The Glais ring sealing device of the described left end of valve element 6 can be replaced with spheroid or cone seals structure.
The piston-type structure of the described right-hand member of valve element 6 and the combination of its insert body, which can use, is threadedly coupled or welds company
Binding structure or riveting structure.
Described Glais ring sealing device is that annular groove is provided with the left end of valve element 6, and groove, which is embedded in, sees that oil just expands
Its outer ring alloy ring is pressed to the Glais ring of the inwall tight fit of short valve pocket 5；Simultaneously on valve element 6 at the surface at Glais ring position
Small Inclined Holes are drilled with, Glais ring is connected with asphalt channel.
It is an advantage of the invention that because the novelty of valve inner structure is improved, reversal valve is set to adapt to high oil as one
Pressure reaches 60Mpa, and conversion mouth turns into big orifice, and conversion speed reaches the combined directional valve of Millisecond, presses off power system height
Hydraulicdirectional control valve used in closing hydraulic actuating mechanism brings up to a new height.
Brief description of the drawings
Fig. 1 is the structural representation when present invention closes a floodgate.
Structural representation when Fig. 2 is separating brake of the present invention.
In figure：1- separating brakes electromagnetic priority valve, 2- separating brakes electromagnetic priority valve, 3- combined floodgates electromagnetic priority valve, 4- balls are stifled, the short valves of 5-
Set, 6- valve elements, the long valve pockets of 7-, 8- cushion collars, 9- seals, 10- valve bodies, 11- end caps.
Embodiment
Embodiment is further illustrated below in conjunction with accompanying drawing.
Reference picture 1, Fig. 2, the present invention include valve body 10, end cap 11, valve element 6, valve body asphalt channel and for electromagnetic pilot
The auxiliary body of control, its main innovation point are：
1. valve body auxiliary body is electromagnetic priority valve, on valve body 10, by oil circuit respectively with the O on valve body 10
Mouth, P mouths are connected with M chambers, and 4 externally cut-offs are blocked up by ball with the oil circuit on valve body 10.
2. the inner chamber of valve body 10 is provided with short valve pocket 5, valve element 6 and long valve pocket 7, and is sealingly mounted at valve body 10 by end cap 11
In inner chamber, the cooperation of each valve pocket and valve body 10 be inlay cooperation and sealed by seal 9, valve element 6 length valve pocket (5,
7) moved left and right between inner chamber, form system and close a floodgate and separating brake two states；When being moved to the left, by being arranged on the left end of valve element 6
Soft sealer O mouths asphalt channel is closed, P mouths hydraulic oil passes through the annular oil flow channel of the long left side of valve pocket 7 and A mouth streams
It is logical, it is "on" position；The right-hand member of valve element 6 is piston-type structure, and soft sealer sealing structure thereon is formed with the long inwall of valve pocket 7
It is slidingly sealed.
3. on combined floodgate pilot valve after electricity, M chamber oilings, valve element 6 is quickly moved to the left, by being arranged on the left end of valve element 6
Soft sealer closes O mouths asphalt channel, the annular oil flow channel and A mouth streams that P mouths hydraulic oil passes through the long left side of valve pocket 7
Logical, system is "on" position；When described valve element 6 is moved to the left terminated site, long valve pocket 7 and the right-hand member piston seal of valve element 6
It is axially arranged on the inwall local location of cooperation to have at least one trickle oil flow channel, make between the N chambers and M chambers that are communicated with P mouths
With trickle insertion "on" position can be maintained stable；
4. on separating brake pilot valve after electricity, the quick draining of M chambers, valve element 6 quickly moves right, above-mentioned trickle breakthrough status with
Valve element 6 moves right and ended, and N chambers and M chambers are completely isolated, and M chambers are in low-pressure state, the spherical surface body that the middle part of valve element 6 is set with
The long left side valve port of valve pocket 7 is in contact P mouths and the closing of N chambers, and A mouths oil stream is connected by short 5 annular oil flow channel of valve pocket and O mouths
Logical, system is gate-dividing state；
5. the right end of valve element 6 is provided with buffering projection and is arranged on the composition of cushion collar 8 gap of the long right-hand member inner chamber of valve pocket 7
Coordinate, in the centre bore that projection insertion cushion collar 8 is buffered when valve element 6 moves right close to stop bit, form throttling buffering knot
Structure.
The course of work of the present invention：When power system is closed a floodgate, as shown in figure 1, start combined floodgate electromagnetic priority valve 3, at this moment,
The high speed of valve element 6 is moved to the left, and is first closed the passage for removing reservoir port, hydraulic oil is entered high-pressure mouth, i.e., P mouths in figure, at this moment change
Mouth is that A mouths are also filled with hydraulic oil.Electric namely on combined floodgate pilot valve, M chamber oilings, Motor execution closes a floodgate valve element 6 to the left, and O mouths are first
Dam, P mouths penetrate with A mouths immediately, because valve element 6 moves to left, to the right-hand member sealing position of stop bit valve element 6, reach the long inwall of valve pocket 7
Thread passage, N chambers and M chambers is had extremely trickle insertion, it is ensured that after pilot valve dead electricity, M chambers will not because of leakage decompression,
High pressure conditions are maintained at, and then maintain the thrust of valve element 6 to the left, combined floodgate is in stable state, in the effect of the left end soft seal of valve element 6
Under, P mouths are penetrated with A mouths and blocked with O mouths.Valve element 6 is arranged to cylinder at the valve port position for closing short valve pocket 5 or long valve pocket 7
Structure, it is the valve port for first entering length valve pocket (5,7) by cylinder before the shutoff valve valve port of valve element 6, is first turned off big flow liquid
Stream, then by seal close port.
It is reliable in order to ensure separating brake action as shown in Fig. 2 when separating brake, there is provided two separating brake electromagnetic priority valves, open
Dynamic separating brake 1 or separating brake 2 can.At this moment, the high speed of valve element 6 moves right, when the center of the projection insertion cushion collar 8 on valve element 6
When in hole, because both gaps are only 20 μm, the translational speed of valve element 6 is slowed down, be effectively protected the end of valve element 6
Portion's valve port.Namely when electric on separating brake pilot valve, M chamber drainings, valve element 6 moves right execution separating brake, and P mouths first dam, immediately A mouths
Penetrated with O mouths, because of the effect of the right-hand member sealing part of valve element 6, N chambers and M chambers are completely isolated, by the effect of the high oil pressure of N chambers, make valve
The sealing valve port of the left end sphere of core 6 and long valve pocket 7 is reliably closed, it is ensured that gate-dividing state is stable.Valve element 6 is moved to right close to stop bit
When, coordinated by the gap of valve element right-hand member and cushion collar 8, throttling buffering is formed, to avoid the left end sphere of valve element 6 and long valve pocket 7
Impact and damage valve port.
It is axially arranged at the inwall of long valve pocket 7 to there is region billet microgroove passage at least one to be to ensure that to close in figure
Gate position, to make valve element 6 be in the stable state of left end, because of the trickle insertion of N chambers and M chambers, M chambers are in high pressure conditions, and
Fine channel is just avoided during 6 rightmost terminal position of valve element；When valve element 6 is run, because the innovation in structure ensure that work
Program is no matter separating brake is with closing a floodgate, and first closing passage ends mouth, then opens openings；Moving left and right for valve element 6 is by M chambers
Oiling and draining, in the presence of differential force, Millisecond quick wink is moved；The left end of valve element 6 is soft sealing structure, and right-hand member is sphere
Hard sealing valve port mode；To avoid impact injury of the valve port when valve element 6 is run, there is provided throttle buffering structure, that is, it is slow
Punching set 8 and the projection gap fit structure of the right part of valve element 6；Oil flow channel is designed as ring section, so having when valve port is opened
Help that the movement travel of valve element 6 is short and oil stream latus rectum is big, reach the purpose of high oil pressure big orifice.
Shown in figure 1 above, Fig. 2 is the embodiment of the present invention in a preferred way, shows the substantive distinguishing features of the present invention
And marked improvement, under the technical inspiration of the present invention, shape, structure etc. can be carried out to it according to the needs of actual use
Equivalent modifications, but within the protection domain of the technical program.
Claims (5)
1. a kind of high oil pressure big orifice combined directional valve of power high voltage switch hydraulic mechanism, including valve body (10), end cap (11),
Valve element (6), valve body asphalt channel and the auxiliary body for electromagnetic pilot control, it is characterised in that：
Described valve body auxiliary body is electromagnetic priority valve, installed in valve body（10）On, by oil circuit respectively with valve body（10）On
O mouths, P mouths be connected with M chambers, with valve body（10）On oil circuit pass through ball block up (4) externally end；
Described valve body（10）Inner chamber is provided with short valve pocket（5）, valve element（6）With long valve pocket（7）, and pass through end cap（11）Sealing peace
Mounted in valve body（10）In inner chamber, each valve pocket and valve body（10）Cooperation be to inlay cooperation and pass through seal（9）Sealed, valve
Core（6）Right-hand member is piston-type structure, soft sealer sealing structure thereon and long valve pocket（7）Inwall is formed and is slidingly sealed；Valve
Core（6）It can be moved left and right between length valve pocket (5,7) inner chamber, form system and close a floodgate and separating brake two states；
On combined floodgate pilot valve after electricity, M chamber oilings, valve element（6）Quickly it is moved to the left, by being arranged on valve element（6）Left end it is soft
Sealing device closes O mouths asphalt channel, and P mouths hydraulic oil passes through long valve pocket（7）The annular oil flow channel of left side and A mouth streams
Logical, system is "on" position；Described valve element（6）When being moved to the left terminated site, long valve pocket（7）With valve element（6）Right-hand member is lived
It is axially arranged on the inwall local location that plug sealing coordinates to have at least one trickle oil flow channel, make the N chambers and M communicated with P mouths
With trickle insertion "on" position can be maintained stable between chamber；
On separating brake pilot valve after electricity, the quick draining of M chambers, valve element（6）Quickly move right, above-mentioned trickle breakthrough status is with valve element
（6）Move right and end, N chambers and M chambers are completely isolated, and M chambers are in low-pressure state, valve element（6）Middle part set spherical surface body with
Long valve pocket（7）Left side valve port is in contact P mouths and the closing of N chambers, and A mouths oil stream passes through short valve pocket（5）Annular oil flow channel and O
Mouth connection, system is gate-dividing state；
Described valve element（6）Right end be provided with buffering and projection and be arranged on long valve pocket（7）The cushion collar of right-hand member inner chamber（8）Structure
Coordinate into gap, work as valve element（6）Move right close to buffering projection insertion cushion collar during stop bit（8）Centre bore in, form
Throttle buffering structure.
2. a kind of high oil pressure big orifice combined directional valve of power high voltage switch hydraulic mechanism as described in claim 1, it is special
It is spherical structure that sign, which is in the middle part of described valve element (6) with long valve pocket (7) end face sealing valve port,.
3. a kind of high oil pressure big orifice combined directional valve of power high voltage switch hydraulic mechanism as described in claim 1, it is special
It is 10-20 μm to levy in the gap of buffering projection and cushion collar (8) centre bore in described throttle buffering structure.
4. a kind of high oil pressure big orifice combined directional valve of power high voltage switch hydraulic mechanism as described in claim 1, it is special
Sign is to be arranged to cylindrical structure at the valve port position for closing short valve pocket (5) or long valve pocket (7) on described valve element (6).
5. a kind of high oil pressure big orifice combined directional valve of power high voltage switch hydraulic mechanism as described in claim 1, it is special
Sign is that the piston-type structure of described valve element (6) right-hand member and the combination of its insert body can use and be threadedly coupled or weld company
Binding structure or riveting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410089747.9A CN104896141B (en) | 2014-03-08 | 2014-03-08 | A kind of high oil pressure big orifice combined directional valve of power high voltage switch hydraulic mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410089747.9A CN104896141B (en) | 2014-03-08 | 2014-03-08 | A kind of high oil pressure big orifice combined directional valve of power high voltage switch hydraulic mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN104896141A CN104896141A (en) | 2015-09-09 |
| CN104896141B true CN104896141B (en) | 2018-01-09 |
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| CN201410089747.9A Active CN104896141B (en) | 2014-03-08 | 2014-03-08 | A kind of high oil pressure big orifice combined directional valve of power high voltage switch hydraulic mechanism |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6154874B2 (en) * | 2015-10-27 | 2017-06-28 | Ｋｙｂ株式会社 | valve |
| CN105822795B (en) * | 2016-05-23 | 2018-11-13 | 浙江工业大学 | The electro-hydraulic high-speed switch valves of chute type 2D with variable ratio transmission mechanism |
| CN106783422B (en) * | 2016-12-27 | 2018-09-21 | 河南平高电气股份有限公司 | Hydraulic control valve and hydraulic actuating mechanism, breaker |
| CN110319247A (en) * | 2019-04-29 | 2019-10-11 | 杭州电子科技大学 | A kind of two-dimensions primary and secondary compensation spray rotation jet chimney fast-switching arrangement |
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324180B (en) * | 2008-07-31 | 2011-12-28 | 河北华北石油荣盛机械制造有限公司 | Underwater hydraulic reversing valve |
| CN101839354A (en) * | 2010-06-10 | 2010-09-22 | 中国西电电气股份有限公司 | Valve core of hydraulic reversing valve |
| CN202468512U (en) * | 2012-03-12 | 2012-10-03 | 黄培华 | Combined reversing valve |
| CN202834247U (en) * | 2012-09-05 | 2013-03-27 | 北京工业大学 | Pure water hydraulic electromagnetism unloading overflow valve |
| CN203770723U (en) * | 2014-03-08 | 2014-08-13 | 温州益坤电气有限公司 | High-oil-pressure large-diameter reversing valve for electric power high-voltage switch hydraulic mechanism |
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Address after: 325401 Yikun Electric Company, Hexiang Road, Aojiang Town, Pingyang County, Wenzhou City, Zhejiang Province Patentee after: Wenzhou Yikun Electric Co., Ltd. Address before: 325401 Yikun Electric Company, Hexiang Road, Aojiang Town, Pingyang County, Zhejiang Province Patentee before: Wenzhou Yikun Electric Co., Ltd. |
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