CN106762910A - A kind of modified logical valve - Google Patents
A kind of modified logical valve Download PDFInfo
- Publication number
- CN106762910A CN106762910A CN201611252364.4A CN201611252364A CN106762910A CN 106762910 A CN106762910 A CN 106762910A CN 201611252364 A CN201611252364 A CN 201611252364A CN 106762910 A CN106762910 A CN 106762910A
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- Prior art keywords
- valve
- oil
- accommodating chamber
- cover plate
- valve element
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- F15B13/12—Special measures for increasing the sensitivity of the system
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Driven Valves (AREA)
- Multiple-Way Valves (AREA)
- Valve Housings (AREA)
Abstract
The invention provides a kind of modified logical valve, belong to control valve technology field.It solves the problems, such as that existing logical valve response speed is slow.This modified logical valve includes：Valve body；Cover plate, it is arranged on valve body and the outer surface of cover plate is provided with pilot valve, is provided with is connected with pilot valve and for the oil circuit control of hydraulic oil circulation on the cover board；Valve pocket, it is inserted on cover plate, and the main oil inlet and main oil-out for communicating are offered on valve pocket；Valve element, it is arranged on valve pocket and accommodating chamber is formed between valve element and valve pocket；Can be directed into hydraulic oil in accommodating chamber by pilot valve and promote valve element to be moved axially on valve pocket by the oil circuit control so that valve element can make main oil inlet and the conducting of main oil-out or block.This modified logical valve has the advantages that fast response time, good airproof performance.
Description
Technical field
The invention belongs to control valve technology field, it is related to a kind of modified logical valve.
Background technology
Logical valve is inserted into inserting valve body, is controlled by the size of the unlatching of logical valve, closing action and open amount
The liquid flow path direction of working connection, pressure and flow.Logical valve is used in the hydraulic system of high pressure, big flow or especially big flow,
Actual applicable mechanical range：Heavy duty machine tools, bending machine, die casting machine, plastic injection molding machine, brass mill machine and various heavy industrial machines
And vehicle and ship etc..
Including being made up of etc. cover plate, valve element, valve pocket and spring, cover plate and valve pocket are inserted on valve body existing logical valve,
Valve element and spring be may be contained within valve pocket, and two main hydraulic fluid ports and a control port are offered on valve pocket, and control port can be controlled
Valve element processed is moved axially in valve pocket and two main oil inlets is communicated or is closed, but the logical valve has following technology and asks
Topic：1st, valve pocket is arranged on cover plate outer surface and both valve pocket and cover plate are connected by screw in the technical scheme so that
There is gap between valve pocket and cover plate so that the sealing of both valve pocket and cover plate is poor；2nd, in the technical scheme, control port is worked as
Communicated with fuel tank, the pressure that valve element is only produced by hydraulic oil in main hydraulic fluid port promotes valve element to move axially, and causes the response of valve element
Speed is slow.
In sum, it is not enough, it is necessary to design a kind of fast response time, good airproof performance on existing logic valve arrangement to solve
Modified logical valve.
The content of the invention
The purpose of the present invention is directed to existing technology and there is above mentioned problem, it is proposed that a kind of fast response time, sealing
Good modified logical valve.
The purpose of the present invention can be realized by following technical proposal：A kind of modified logical valve, including：
Valve body；
Cover plate, it is arranged on valve body and the outer surface of cover plate is provided with pilot valve, is provided with the cover board and guide
Valve is connected and for the oil circuit control of hydraulic oil circulation；
Valve pocket, it is inserted on cover plate, and the main oil inlet and main oil-out for communicating are offered on valve pocket；
Valve element, it is arranged on valve pocket and accommodating chamber is formed between valve element and valve pocket；
Can be directed into hydraulic oil in accommodating chamber by pilot valve and promote valve element axial direction on valve pocket by the oil circuit control
It is mobile so that valve element can make main oil inlet and the conducting of main oil-out or block.
In a kind of above-mentioned modified logical valve, the oil circuit control includes being arranged on cover plate and being communicated with pilot valve
Control oil inlet pipe, control flowline and control oil pipe, control oil inlet pipe, control flowline and control oil pipe oil inlet
It is respectively positioned on the same end face of cover plate, the oil guide pipe that two ends communicate with pilot valve and accommodating chamber respectively is additionally provided with the cover board.
In a kind of above-mentioned modified logical valve, the accommodating chamber includes the first accommodating chamber and the second accommodating chamber, described
The rear end face and valve pocket of valve element form first accommodating chamber, and first accommodating chamber is communicated by oil guide pipe with pilot valve,
The middle part of valve element and valve pocket are surrounded and form second accommodating chamber, and second accommodating chamber is communicated with control oil inlet pipe.
In a kind of above-mentioned modified logical valve, annular step surface is offered on valve element, offered on valve pocket with
The corresponding ring-shaped step groove of annular step surface, the annular step surface and ring-shaped step groove form second accommodating chamber.
In a kind of above-mentioned modified logical valve, the two ends point of multiple oil guiding holes and each oil guiding hole are offered on valve element
Do not communicated with the second accommodating chamber and control oil inlet pipe.
In a kind of above-mentioned modified logical valve, annular accommodating chamber is formed between valve pocket and cover plate, on the cover board
It is provided with the connecting tube that two ends communicate with control oil inlet pipe and annular accommodating chamber respectively.
In a kind of above-mentioned modified logical valve, multiple connecting holes through cover plate, each connection are offered on the cover board
One end of screw and screw is provided with hole through connecting hole and is threadedly connected on valve body.
In a kind of above-mentioned modified logical valve, the upper surface of valve element offers mounting groove, is provided with mounting groove
The upper end of elastic component and the elastic component is resisted against on cover plate.
In a kind of above-mentioned modified logical valve, the outer surface of valve pocket is provided with multiple first sealing rings, described
The both sides of one sealing ring contact with valve pocket and cover plate respectively.
In a kind of above-mentioned modified logical valve, the outer surface of valve element is provided with multiple second sealing rings, described
The both sides of two sealing rings contact with valve element and valve pocket respectively.
Compared with prior art, the present invention at least has the advantages that：
1st, the present invention includes cover plate, valve pocket and valve element, and the upper end of wherein valve pocket is inserted on cover plate, it is ensured that cover plate and
The steadiness of both valve pockets connection, and ensure that the sealing of both cover plate and valve pocket；
2nd, the oil circuit control for hydraulic oil circulation is offered on the cover board, and appearance is formed between the two in valve element and valve pocket
Receive chamber, the hydraulic oil in oil circuit control can be directed into accommodating chamber and can produce control pressure of the promotion valve element along valve pocket axially upwards
Power, meanwhile, hydraulic oil can also produce main input pressure axially upwards, both control pressure and main input pressure in main oil inlet
It is common to promote valve element movement, improve the response speed of valve element.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is sectional view of the invention.
Fig. 3 is the sectional view at another visual angle of the invention.
Fig. 4 is the sectional view at another visual angle of the invention.
In figure, 100, cover plate；110th, pilot valve；120th, connecting hole；200th, valve pocket；210th, main oil inlet；220th, master is fuel-displaced
Mouthful；240th, annular accommodating chamber；250th, connecting tube；300th, valve element；320th, oil guiding hole；400th, oil inlet pipe is controlled；410th, control fuel-displaced
Pipe；420th, control oil pipe；430th, oil guide pipe；600th, spring；700th, the first sealing ring；710th, the second sealing ring.
Specific embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in Figures 1 to 4, this modified logical valve includes cover plate 100, valve pocket and valve element 300, wherein, cover plate 100
It is installed on valve body (not marked in figure) and is fixed with pilot valve 110 in the outer surface of cover plate 100, use is also equipped with cover plate 100
In the oil circuit control of hydraulic oil circulation, valve pocket is inserted on cover plate 100, main oil inlet 210 is offered on bonnet and master is fuel-displaced
Mouth 220, valve element 300 is arranged on valve pocket, and accommodating chamber is formed between valve element 300 and valve pocket, in the course of the work, control oil
Can be directed into hydraulic oil in accommodating chamber by pilot valve 110 by road, and hydraulic oil can promote valve element 300 to be moved axially along valve pocket,
Make winner's oil inlet 210 and both conductings of main oil-out 220 or block.
The connecting hole 120 through cover plate 100 is offered in the upper surface of cover plate 100, and connecting hole 120 includes being in ladder
The first connecting hole and the second connecting hole that type is set, the first connecting hole and the second connecting hole be coaxially disposed and the first connecting hole it is straight
Footpath during installation, is provided with screw more than the diameter of the second connecting hole on the first connecting hole, and one end of screw passes through
Second connecting hole is simultaneously threadedly connected on valve body so that steadiness that both cover plate 100 and valve body are connected simultaneously ensure that cover plate 100
With the sealing of valve body.
Above-mentioned oil circuit control includes the control oil inlet pipe 400, the control that are arranged on cover plate 100 and are communicated with pilot valve 110
Flowline 410 and control oil pipe 420, wherein, control entering for oil inlet pipe 400, control flowline 410 and control oil pipe 420
Hydraulic fluid port is opened on the same end face of cover plate 100, convenient control oil inlet pipe 400, control flowline 410 and control oil pipe
The installation of 420 three's oil circuits, and control oil inlet pipe 400, control flowline 410 and the three of control oil pipe 420 to surround respectively
Valve pocket is set, and specifically, control oil inlet pipe 400 is arranged at the left side of valve pocket, and control flowline 410 is arranged at the top of valve pocket,
Control oil pipe 420 is arranged at the right side of valve pocket.
Preferably, the oil guide pipe 430 that two ends communicate with pilot valve 110 and accommodating chamber respectively is additionally provided with cover plate 100,
Control valve can control oil guide pipe 430 to be turned on or off by pilot valve 110.
Fixing groove is offered at the middle part of cover plate 100, above-mentioned valve pocket is withheld and is arranged in fixing groove, and above-mentioned valve element 300 is worn
On valve pocket, wherein, both are connected and remains stationary state for valve pocket and cover plate 100, and valve element 300 can axially be moved along valve pocket
It is dynamic.
The through hole through valve pocket is offered in the middle part of valve pocket, when valve pocket is threadedly connected on valve body, through hole and main oil
Road communicates and valve element 300 is equipped with through hole, so that the lower end of through hole is to be main oil inlet 210, is opened on the side wall of valve pocket
It is provided with multiple main oil-outs 220 through sleeve side wall, multiple main oil-outs 220 and the outside for being uniformly distributed in valve pocket annular in shape
On wall, and main oil-out 220 is communicated with main oil inlet 210, annular abutment portion is provided with the inwall of valve pocket and annular is supported
Relying part is located between main oil inlet 210 and main oil-out 220.
When the lower end of valve element 300 is resisted against in annular abutment portion, valve element 300 can block main oil inlet 210 and block master
Oil inlet 210 and main oil-out 220 are turned on；When valve element 300 is along through hole axial slip and away from annular abutment portion, and work as
When the lower surface of valve element 300 is tangent with main oil-out 220, the hydraulic oil in main oil inlet 210 can be outside by main oil-out 220
Derive, the spacing that valve element 300 is moved in the axial direction can control the open amount of main oil-out 220 and realize the water conservancy diversion of hydraulic oil
Speed.
Above-mentioned accommodating chamber can be divided into the first accommodating chamber 310 and the second accommodating chamber, wherein, in the end face of valve element 300 and valve pocket two
The first accommodating chamber 310 is formed between person, one end of above-mentioned oil guide pipe 430 communicates with the first accommodating chamber 310, oil guide pipe 430
The other end is communicated with pilot valve 110；Second accommodating chamber be arranged at the middle part of valve element 300 and valve pocket and the second accommodating chamber with control into
Oil pipe 400 is communicated.
Annular step surface is offered on valve element 300, ring-shaped step corresponding with annular step surface is offered on valve pocket
Groove, second accommodating chamber is formed in annular step surface and ring-shaped step groove between the two, and the second accommodating chamber with control into
Oil pipe 400 is communicated.
Preferably, offer multiple oil guiding holes 320 on valve element 300, the two ends of oil guiding hole 320 respectively with the second accommodating chamber
Communicated with control oil inlet pipe 400 so that the hydraulic oil in control oil inlet pipe 400 can be directed into the second receiving by oil guiding hole 320
In chamber, while improve the speed that hydraulic oil is directed into the second accommodating chamber, response speed of the invention is improve.
Further, annular accommodating chamber 240 is formed between valve pocket and cover plate 100, each oil guiding hole 320 holds with annular
Receiving chamber 240 is communicated, and the connection that two ends communicate with control oil inlet pipe 400 and annular accommodating chamber 240 respectively is offered on cover plate 100
Pipe 250, the hydraulic pressure in control oil inlet pipe 400 is had and can be directed into annular accommodating chamber 240 by connecting tube 250, and annular is held
The hydraulic oil in chamber 240 of receiving can be directed into the second accommodating chamber by oil guiding hole 320.
Further, the axis parallel of the axial line of above-mentioned oil guiding hole 320 and connecting tube 250 and difference of height is formed with,
The axial line of connecting tube 250 is located at the straight of the top of axial line of oil guiding hole 320 and the diameter of connecting tube 250 and oil guiding hole 320
Footpath is equal, it is to avoid the hydraulic oil in annular accommodating chamber 240 is back to the product of phenomenon in control oil inlet pipe 400 by connecting tube 250
It is raw.
Mounting groove is offered in the upper surface of valve element 300, the two ends point of elastic component and elastic component are provided with mounting groove
It is not resisted against between valve element 300 and cover plate 100, elastic component deformation energy can improve valve to the generation elastic force of valve element 300, elastic force
The reset efficiency of core 300.
Preferably, above-mentioned elastic component is spring 600.
Operation principle of the invention is as follows：
In an initial condition, control oil pipe 420 is opened with pilot valve 110, and the hydraulic oil in control oil pipe 420 is directed into
Produce in one accommodating chamber 310 and to valve element 300 control pressure straight down；Hydraulic oil in control oil inlet pipe 400 can pass through
Connecting tube 250 is directed into annular accommodating chamber 240 and is directed into the second accommodating chamber and valve element 300 is produced by oil guiding hole 320
Raw input pressure straight up；Spring 600 deforms and elastic force straight down is produced to valve element 300 simultaneously；Main oil inlet
Hydraulic oil in 210 can produce main input pressure straight up to valve element 300；
It is hereby understood that direction active force straight down is control pressure and elastic force sum, valve element 300 on valve element 300
Upper direction active force straight up is input pressure and main input pressure sum, and control pressure is more than with elastic force sum
Input pressure and main input pressure sum so that the lower end of valve element 300 is resisted against in annular abutment portion, main oil inlet 210 and master
The blocking of both oil-outs 220；
When control oil pipe 420 and pilot valve 110 are closed, the hydraulic oil in the first accommodating chamber 310 is led by oil guide pipe 430
Go out to control flowline 410, the hydraulic oil in control oil inlet pipe 400 can be directed into the second accommodating chamber and produce straight up
Input pressure, while spring 600 deforms and elastic force straight down is produced to valve element 300；Hydraulic pressure in main oil inlet 210
Oil can produce main input pressure straight up to valve element 300；
It is hereby understood that direction active force straight down is elastic force on valve element 300, direction is straight up on valve element 300
Active force be input pressure and main input pressure sum, and input pressure and main input pressure sum are more than elastic force, make
Obtain valve element 300 to be moved axially upwards along through hole, the conducting of both main oil inlet 210 and main oil-out 220.
Preferably, the outer surface of valve pocket is provided with multiple first sealing rings 700, the both sides difference of the first sealing ring 700
Contacted with valve pocket and cover plate 100, it is ensured that the sealing of both valve pocket and cover plate 100, it is to avoid the product of hydraulic fluid leak phenomenon occur
It is raw.
Further, the outer surface of valve element 300 is provided with multiple second sealing rings 710, the both sides of the second sealing ring 710
Contacted with valve element 300 and valve pocket respectively, it is ensured that the sealing of both valve element 300 and valve pocket, it is to avoid hydraulic fluid leak phenomenon occur
Generation.
Specific embodiment described herein is only to the spiritual explanation for example of the present invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from spirit of the invention or surmount scope defined in appended claims.
Claims (10)
1. a kind of modified logical valve, it is characterised in that including：
Valve body；
Cover plate, it is arranged on valve body and the outer surface of cover plate is provided with pilot valve, is provided with the cover board and pilot valve phase
Even and for the oil circuit control of hydraulic oil circulation；
Valve pocket, it is inserted on cover plate, and the main oil inlet and main oil-out for communicating are offered on valve pocket；
Valve element, it is arranged on valve pocket and accommodating chamber is formed between valve element and valve pocket；
Can be directed into hydraulic oil in accommodating chamber by pilot valve and promote valve element to be moved axially on valve pocket by the oil circuit control,
Enable that valve element makes main oil inlet and the conducting of main oil-out or blocks.
2. a kind of modified logical valve according to claim 1, it is characterised in that the oil circuit control includes being arranged at lid
The control oil inlet pipe that is communicated on plate and with pilot valve, control flowline and control oil pipe, control oil inlet pipe, control flowline with
And the oil inlet of control oil pipe is respectively positioned on the same end face of cover plate, be additionally provided with the cover board two ends respectively with pilot valve and appearance
Receive the oil guide pipe that chamber communicates.
3. a kind of modified logical valve according to claim 2, the accommodating chamber includes that the first accommodating chamber and second is accommodated
Chamber, the rear end face and valve pocket of the valve element form first accommodating chamber, and first accommodating chamber passes through oil guide pipe and pilot valve
Communicate, surrounded at the middle part of valve element and valve pocket and form second accommodating chamber, second accommodating chamber is communicated with control oil inlet pipe.
4. a kind of modified logical valve according to claim 3, it is characterised in that ring-shaped step is offered on valve element
Face, offers ring-shaped step groove corresponding with annular step surface on valve pocket, and the annular step surface and ring-shaped step groove are formed
Second accommodating chamber.
5. a kind of modified logical valve according to claim 3 or 4, offers multiple oil guiding holes and each Oil Guide on valve element
The two ends in hole communicate with the second accommodating chamber and control oil inlet pipe respectively.
6. a kind of modified logical valve according to claim 5, is formed with annular accommodating chamber between valve pocket and cover plate,
The connecting tube that two ends communicate with control oil inlet pipe and annular accommodating chamber respectively is provided with cover plate.
7. a kind of modified logical valve according to claim 6, offers multiple connecting holes through cover plate on the cover board,
One end of screw and screw is provided with each connecting hole through connecting hole and is threadedly connected on valve body.
8. a kind of modified logical valve according to claim 7, the upper surface of valve element offers mounting groove, in mounting groove
The upper end for being provided with elastic component and the elastic component is resisted against on cover plate.
9. a kind of modified logical valve according to claim 8, multiple first sealing rings are provided with the outer surface of valve pocket,
The both sides of first sealing ring contact with valve pocket and cover plate respectively.
10. a kind of modified logical valve according to claim 9, is provided with multiple second and seals in the outer surface of valve element
Circle, the both sides of second sealing ring contact with valve element and valve pocket respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611252364.4A CN106762910B (en) | 2016-12-30 | 2016-12-30 | A kind of modified logical valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611252364.4A CN106762910B (en) | 2016-12-30 | 2016-12-30 | A kind of modified logical valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762910A true CN106762910A (en) | 2017-05-31 |
| CN106762910B CN106762910B (en) | 2018-11-13 |
Family
ID=58927686
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611252364.4A Active CN106762910B (en) | 2016-12-30 | 2016-12-30 | A kind of modified logical valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN106762910B (en) |
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| CN205779982U (en) * | 2016-07-12 | 2016-12-07 | 芜湖繁星教育咨询有限公司 | Pilot controller |
| CN206346979U (en) * | 2016-12-30 | 2017-07-21 | 宁波华液机器制造有限公司 | A kind of modified logical valve |
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203476869U (en) * | 2013-07-31 | 2014-03-12 | 韶关比亚迪实业有限公司 | Multiway valve, hydraulic system and fork |
| CN105114382A (en) * | 2015-07-28 | 2015-12-02 | 华中科技大学 | Pilot operated type overflow valve |
| CN205047559U (en) * | 2015-09-29 | 2016-02-24 | 浙江华益精密机械股份有限公司 | Hydraulic control valve |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106762910B (en) | 2018-11-13 |
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