CN205806134U - The spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D - Google Patents
The spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D Download PDFInfo
- Publication number
- CN205806134U CN205806134U CN201620660394.8U CN201620660394U CN205806134U CN 205806134 U CN205806134 U CN 205806134U CN 201620660394 U CN201620660394 U CN 201620660394U CN 205806134 U CN205806134 U CN 205806134U
- Authority
- CN
- China
- Prior art keywords
- spool
- valve body
- trough
- shoulder
- valve
- Prior art date
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Mechanically-Actuated Valves (AREA)
- Servomotors (AREA)
Abstract
The spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D, including valve body, drive valve body open or the drive mechanism of opening and closing and drive valve body reset Zero maintaining mechanism；Valve body includes the servo screw mechanism being made up of valve body and spool, and oil suction chamber connects with the oil-in on valve body, and the arrival end of high-pressure channel connects with oil suction chamber；The arrival end of low-pressure channel connects with trough, the port of export of low-pressure channel connects with going out oil pocket, spiral fluted one end connects with sensitive cavity, the spiral fluted other end is positioned on the movement locus of high-pressure trough and the movement locus of trough, the rotary shaft of rotating machinery is fixing with upper driving lever to be connected, and upper driving lever is vertically pushed against in lower shift fork by upper driving lever back-moving spring；The left end of spool runs through valve body, and the left side of valve body is provided with the Zero maintaining mechanism forcing valve body to keep zero-bit.
Description
Technical field
This utility model relates to a kind of switch valve, particularly relates to a kind of spool outer shroud electro-hydraulic speed-sensitive switch of spiral flute type 2D
Valve.
Background technology
High-speed switch valve is the eighties of last century development eighties and then a kind of electrohydraulic control element grown up, and has switching
The advantages such as ability is fast, contamination resistance is strong, are widely used in the fields such as hydraulic locking, Aero-Space, engineering machinery and military affairs.
In recent years, high-speed switch valve is as one of the critical component of Electro hydraulic Digital Control technology, for realizing computer technology
With the combination of hydraulic control technology, its performance requirement becomes more and more higher, it is necessary to also can while realizing its function
Meet the feature such as big flow, high pressure resistant, fast response time, control accuracy height, good seal performance.
As the control element of hydraulic system, valve body structure form is varied, high-speed switch valve by regulation valve port open/
The pass time changes by valve port flow, and its version typically uses ball-valve type, side valve type or cone valve type three kinds.At present, 2D is big
Flow electrohydraulic switch valve is the two-stage high-speed switch valve using and having double freedom of motion spool, and it is flexible, smart that this valve has control
Degree is high, frequency response is fast, low-hysteresis, leakage rate are little, advantages of simple structure and simple, is mainly used in Aero-Space, military affairs etc. exceedingly odious
Under environment.But, relatively big to the spool difficulty of processing of this type of valve, the through hole that spool is provided with under high pressure, high vibration to spool
Impact relatively big, reduce the rigidity of spool, easily fracture in through hole；And the plug of spool afterbody is easy in the case of hypertonia
It is rushed out, causes destruction integrally-built to valve body.And under high pressure, " clamping " phenomenon of spool is easily caused flow and cannot go up
Rise.
The Chinese patent application of Application No. 2016103397553 describes the skewed slot of a kind of band variable ratio drive mechanism
The electro-hydraulic high-speed switch valve of type 2D, the high-pressure trough of this switch valve, trough are all opened on spool, due to the small volume of spool,
Causing the limited size of high-pressure trough, trough, therefore response speed is the most just restricted；Valve pocket separately need to be set, cause structure multiple
Miscellaneous；And skewed slot is arranged on valve body, difficulty of processing is relatively big, relatively costly.
Summary of the invention
In order to overcome the electro-hydraulic high-speed switch valve of existing 2D easily weak strong by frictional force, hydraulic power, greasy dirt, spool and processing
Hydraulic pressure " clamping stagnation " phenomenon that spool is produced by precision problem etc., and increase the area ladder that servo screw groove intersects with height indent
Spending thus improve frequency response, this utility model provides a kind of under high pressure, big flow, it is possible to achieve servo screw mechanism quickly rings
Should, the spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D that contamination resistance is strong.
The technical solution of the utility model is:
The spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D, including valve body, drives valve body to open or the biography of opening and closing
The Zero maintaining mechanism that motivation structure and driving valve body reset；
Valve body includes the servo screw mechanism being made up of valve body and spool, and spool is rotatably arranged in valve body, valve
Core is sequentially provided with first shoulder, the second shoulder and the 3rd shoulder from right to left, and the right end cap of valve body and first shoulder are by valve body
The airtight enclosure in chamber becomes sensitive cavity, first shoulder and the second shoulder that airtight for body cavity enclosure cyclization is fuel-displaced around the annular of spool
Chamber, the second shoulder and the 3rd shoulder by airtight for body cavity enclosure cyclization around the annular oil suction chamber of spool；
Oil suction chamber connects with the oil-in on valve body, is provided with high-pressure channel along central shaft, the entrance of high-pressure channel in spool
End connects with oil suction chamber；A pair axisymmetric high-pressure trough and an a pair axisymmetric trough is had on valve body, and high-pressure trough and low
Indent is arranged alternately, and high-pressure trough connects with the port of export of high-pressure channel；Being provided with low-pressure channel on described valve body vertically, low pressure is led to
The arrival end in road connects with trough, and the port of export of low-pressure channel connects with going out oil pocket,
The outer wall of spool is provided with a pair axisymmetric helicla flute, and helicla flute from the right side of spool on spool along axle
To spiral extension, spiral fluted one end connects with sensitive cavity, and the spiral fluted other end is positioned at movement locus and the low pressure of high-pressure trough
On the movement locus of groove, and the distance between trough with high-pressure trough is equal with spiral fluted groove width, and sensitive cavity is led to by high pressure
Road connects with oil suction chamber with helicla flute；
Sensitive cavity is connected with going out oil pocket with low-pressure channel by helicla flute, trough, and goes out fuel-displaced with on valve body of oil pocket
Mouth connection；Second shoulder length vertically is more than the diameter of oil-out, so that the second shoulder is when spool is positioned at closed mode
Fully seal oil-out, and oil-out is positioned on the movement locus of the second shoulder；
It is arranged on the drive mechanism on the left of valve body and includes directly on top upper driving lever and lower shift fork located directly below,
The lower half of upper driving lever is circular shifting block, and the first half of lower shift fork is the U-shaped fork of opening upwards, and the external diameter of shifting block and U-shaped are pitched
A/F equal, shifting block is plugged in U-shaped fork, and the rotary shaft of rotating machinery and upper driving lever are fixing to be connected, to drive above group
Bar drives lower shift fork to rotate, and the bottom of lower shift fork is fixed with the left end of spool and is connected, with band movable valve plug synchronous axial system；Upper driving lever
Top be slidably disposed on horizon bar, and the both sides of horizon bar are all arranged with the upper driving lever that upper driving lever is pushed against zero-bit
Back-moving spring, upper driving lever is vertically pushed against in lower shift fork by upper driving lever back-moving spring；
The left end of spool runs through valve body, and the left side of valve body is provided with the Zero maintaining mechanism forcing valve body to keep zero-bit, institute
Stating the valve core reseting spring that Zero maintaining mechanism includes being set on spool, one end of valve core reseting spring is pushed against the 3rd shoulder
Left surface on, force the second shoulder to be positioned at above oil-out and seal hydraulic fluid port, the other end is pushed against and is solidly set on spool
On jump ring.
Further, described rotating machinery is motor.
Further, described trough and the equal semicircular in shape of high-pressure trough.
Further, the left side of valve body is provided with connection seat, and Zero maintaining mechanism is arranged in connection seat, and drive mechanism is arranged on
Connect above seat, connected by connecting seat between connecting plate and valve body, connect the two ends of seat respectively by the first sealing ring and company
Fishplate bar is airtight with valve body to be connected.
Further, the right-hand member of valve core reseting spring is pushed against on the right flank of the 3rd shoulder by spring base, and spool is multiple
The right-hand member end of position spring is pushed against on jump ring by spring pad, and spring base and the equal fixed cover of spring pad are located on spool.
Further, described connection seat and connecting plate are furnished with lid.
Further, described motor is arranged on the top of valve body, and is furnished with protective cover.
Further, described upper driving lever is by the first screws clamp on the output shaft of motor, and described lower shift fork passes through
Second screws clamp is on spool.
Technology of the present utility model is contemplated that: in order to make the electro-hydraulic high-speed switch valve of 2D have big flow, high frequency sound characteristic, remove
Motor to be ensured has fast response characteristic and drive mechanism meets the relatively large driving force square provided needed for spool operating
Outward；More it is important that, the axial displacement of spool of servo screw mechanism is to having quickly response between rotational angle displacement
Characteristic.Therefore, helicla flute should do greatly as far as possible with height indent overlapping area gradient.Helicla flute is opened in valve by this utility model
On outer core, height indent is opened on valve interior wall, both can effectively increase the overlapping area ladder of helicla flute and height indent
Degree, reduces again spiral fluted difficulty of processing.
Servo screw mechanism be realize switch valve spool corner and axial straight-line displacement conversion lead control structure.Valve interior wall
Left end has helicla flute, and helicla flute communicates with sensitive cavity, and the gap between high-pressure trough and trough is equal with helicla flute groove width,
To increase area gradient, meet the 2D big flow of electro-hydraulic high-speed switch valve, the requirement of high frequency sound.Spool is rotatably mounted to valve body
In, spiral fluted one end communicates with sensitive cavity, and the other end constitutes resistance half-bridge with high-pressure trough and trough, and resistance half-bridge passes through spiral shell
Spin slot controls the pressure in sensitive cavity.
In order to ensure that the electro-hydraulic high-speed switch valve of 2D has the characteristic of big flow, high frequency sound, it is necessary to assure hydraulic servo spiral
Rotational angle displacement can be made quickly response by the axial displacement of spool of mechanism, and hydraulic servo screw mechanism natural frequency depends on
Spool end sensitive cavity volume and spool quality, the construction features of the electro-hydraulic high-speed switch valve of 2D determines its sensitive cavity and can design
The least, thus its hydraulic natural frequency is the highest, about 104～105Hz.The highest hydraulic natural frequency makes order Oscillating
Not interfering with the dynamic response of spool, the axially-movable of spool does not results in impact to the response of the angular signal of input, and two
Rank vibration can be simplified to inertial element.
Because the natural frequency of hydraulic servo screw mechanism is the highest, the high-pressure trough of design, trough use with helicla flute and just hide
Lid mode, covering amount 0.003～0.007mm, it is ensured that lead control level zero leakage amount the least, improve spool corner displacement and axle
Conversion accuracy between displacement, and poppet shaft can be made very big to rigidity, it is effectively improved the work of 2D electro-hydraulic high-speed switch valve
Time reliability and stability.
This utility model has the highest automatically cleaning ability, if high-pressure trough, trough constitute with helicla flute parallel four
The one side in shape region, limit is blocked, then the dynamic balance of spool will be destroyed, and spool just carries out axially-movable, in motor process
Middle blocking area increases, can effective removing obstacles thing, contamination resistance is strong.
The beneficial effects of the utility model are:
1, high-pressure trough, trough are all opened on valve body, with existing by opening that high-pressure trough, trough are opened on spool
Pass valve is compared, and its shape size is not limited by valve core structure and intensity thereof, can do big accordingly, thus add helicla flute with
The area gradient that high and low indent intersects, improves response speed；
2, helicla flute is opened on spool and eliminates housing configuration (such as Application No.), therefore can increase spool accordingly straight
Footpath, thus increase control flow of the present utility model；
3, helicla flute is opened in annulus endoporus difficulty of processing very greatly, so typically using straight trough to replace helicla flute, so makes
The control precision of leading of spiral servo mechanism reduces, and can process helicla flute easily and solve problem above on spool outer shroud,
The angle displacement and the straight-line displacement that make spool are linear；
4, helicla flute is opened in the outer chain rate of spool and is opened in valve pocket inner chamber simply, reduces difficulty of processing, reduces cost；
5, the effective size reducing spool pressure hole aperture, strengthens the structural strength of spool, improves speed-sensitive switch
The reliability of valve；
6, frequency response is fast, and dynamic property is good；
7, low to oil filtrating required precision, contamination resistance is strong.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model.
Fig. 2 is drive mechanism structural representation.
Fig. 3 is the structural representation of spool.
Fig. 4 is the structural representation of valve body.
Fig. 5 is spool partial structurtes schematic diagram.
Fig. 6 is spool, valve body cooperation schematic diagram.
Fig. 7 be in Fig. 6 A-A to sectional view
Detailed description of the invention
As it can be seen, the spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D, including valve body, drive valve body to open or
The Zero maintaining mechanism that the drive mechanism of opening and closing and driving valve body reset；
Valve body includes the servo screw mechanism being made up of valve body 5 and spool 6, and spool 6 is rotatably arranged in valve body 5
In, spool 6 is sequentially provided with first shoulder the 61, second shoulder 62 and the 3rd shoulder 63 from right to left, the right end cap 7 of valve body 6 and the
The valve body 5 airtight enclosure of inner chamber is become sensitive cavity i, first shoulder 61 and the second shoulder 62 to enclose airtight for valve body 5 inner chamber by one shoulder 61
Be divided into the annular around spool 6 and go out oil pocket, the second shoulder 62 and the 3rd shoulder 63 by valve body 5 inner chamber airtight enclosure cyclization around spool
The annular oil suction chamber of 6；
Oil suction chamber connects with the oil inlet P on valve body 6, is provided with high-pressure channel d along central shaft in spool 6, high-pressure channel d's
Arrival end connects (arrival end of high-pressure channel d extends radially through spool 6) with oil suction chamber；Have on valve body 5 a pair axisymmetric
High-pressure trough h and a pair axisymmetric trough g, and high-pressure trough h and trough g is arranged alternately, high-pressure trough h and high-pressure channel d's
The port of export connects；Being provided with low-pressure channel f on described valve body 5 vertically, the arrival end of low-pressure channel f connects with trough g, low pressure
The port of export of passage f connects with going out oil pocket,
The outer wall of spool 6 is provided with a pair axisymmetric helicla flute e, and helicla flute e from the right side of spool 6 at spool 6
On spiral extension vertically, one end of helicla flute e connects with sensitive cavity i, and the other end of helicla flute e is positioned at the motion of high-pressure trough h
On the movement locus of track and trough g, and the distance between trough g with high-pressure trough h is equal with the groove width of helicla flute e, quick
Sense chamber i is connected with oil suction chamber with helicla flute e by high-pressure channel d；
Sensitive cavity i is connected with going out oil pocket with low-pressure channel f by helicla flute e, trough g, and goes out on oil pocket and valve body 5
Oil-out A connects；The second shoulder 62 length vertically diameter more than oil-out A, so that the second shoulder 62 is positioned at spool 6
Fully seal oil-out A during closed mode, and oil-out A is positioned on the movement locus of the second shoulder 62；
It is arranged on the drive mechanism on the left of valve body and includes directly on top upper driving lever 10 and located directly below setting aside
Fork 14, the lower half of upper driving lever 10 is circular shifting block, and the first half of lower shift fork 10 is the U-shaped fork of opening upwards, and outside shifting block
The A/F of footpath and U-shaped fork is equal, and shifting block is plugged in U-shaped fork, and the rotary shaft 9 of rotating machinery is fixing even with upper driving lever 10
Connecing, to drive upper driving lever 10 to drive lower shift fork to rotate, and the bottom of lower shift fork 14 is fixed with the left end of spool 6 and is connected, to drive
Spool 6 synchronous axial system；The top of upper driving lever 10 is slidably disposed on horizon bar, and the both sides on horizon bar be all arranged with by
Upper driving lever 10 is pushed against the upper driving lever back-moving spring 12 of zero-bit, and upper driving lever 10 is vertically pushed against and sets aside by upper driving lever back-moving spring 12
In fork 14；
The left end of spool 6 runs through valve body 5, and the left side of valve body 5 is provided with and forces valve body 5 to keep the zero-bit of zero-bit to keep machine
Structure, described Zero maintaining mechanism includes the valve core reseting spring 3 being set on spool 6, and one end of valve core reseting spring 3 is pushed against
On the left surface of the 3rd shoulder 63, forcing the second shoulder 62 be positioned at above oil-out A and seal hydraulic fluid port A, the other end is pushed against
It is solidly set on the jump ring on spool 6.
Described rotating machinery is motor a.
Described trough g and the equal semicircular in shape of high-pressure trough h.
The left side of valve body 5 is provided with connection seat 2, and Zero maintaining mechanism is arranged in connection seat 2, and connecting plate 1 is positioned at left side, valve
Body 5 is positioned at right side, connected by connecting seat 2 between connecting plate 1 and valve body 5, connects the two ends of seat 2 respectively by the first sealing ring
17 with connecting plate 1 and valve body 5 is airtight is connected.
Spool 6 left end sequentially passes through valve body 5, connects seat 2 and penetrate in connecting plate 1, and spool 6 is by the second sealing ring 4
It is tightly connected with valve body, is tightly connected with connecting plate 1 by the 3rd sealing ring 18.
Right end cap 7 is tightly connected with valve body 5 by the 4th sealing ring 19.
The right-hand member of valve core reseting spring 3 is pushed against on the right flank of the 3rd shoulder 63 by spring base, and valve core reset bullet
The left end of spring 3 is pushed against on jump ring by spring pad, and spring base and the equal fixed cover of spring pad are located on spool 6.
Described connection seat 2 and connecting plate 1 are furnished with lid.
Described motor a is arranged on the top of valve body 5, and is furnished with protective cover.
Described upper driving lever 10 is clamped on the output shaft 9 of motor by the first screw 13, and described lower shift fork 14 passes through
Second screw 15 is clamped on spool 6.
Motor a is connected with controller.
In Fig. 6, T represents oil return opening.
Spool is provided with concentric ring 4 and ensures the axiality with valve body.
The present embodiment is with the 32 spool outer shroud big streams of spiral flute type that latus rectum valve core diameter is as 32mm, flow is as 1000L/min
As a example by the amount electro-hydraulic high-speed switch valve of two-position three way 2D, in conjunction with accompanying drawing, the utility model is described in further detail.
(1) servo screw mechanism:
Servo screw mechanism is the Dao Kong mechanism realizing switch valve spool corner with axial straight-line displacement conversion.
High-pressure trough h is connected all the time with high-pressure channel d, and high-pressure trough h and trough g is positioned at the both sides of helicla flute e, and high pressure
Groove h is equal with the groove width of helicla flute e with the distance of trough g.One end of helicla flute e connects with sensitive cavity i, the other end and high pressure
Groove h and trough g constitutes resistance half-bridge, and resistance half-bridge controls the pressure in sensitive cavity i by helicla flute e.Helicla flute e covers phase
The adjacent region between high-pressure trough h and trough g, to increase area gradient, reduces processing technique difficulty, it is achieved meet 2D electro-hydraulic
The big flow of high-speed switch valve, the requirement that frequency response is fast.
When spool 6 is positioned at zero-bit (when this utility model is positioned at closed mode), the side of the second shoulder 62 is the closeest
Seal oil-out A, and the opening of helicla flute e is staggered with high-pressure trough h.
Fluid is in oil inlet P enters oil suction chamber, and the pressure in oil suction chamber is p1, the fluid in oil suction chamber leads to through high pressure
Road d enters in high-pressure trough h, and the fluid in high-pressure trough h is in helicla flute e enters sensitive cavity i, and the fluid in sensitive cavity i is through spiral shell
Spin slot e enters in trough f, and enters out oil pocket from trough g through low-pressure channel f, and owing to oil-out A seals, fluid will not
Outflow, if do not consider frictional force and the impact of valve port hydraulic power when static state, high-pressure trough h, trough g respectively with helicla flute e phase
The area equation handed over, the pressure in sensitive cavity i only has the half of the pressure (system pressure) in oil suction chamber, but sets sensitive cavity i
Cross section be 2 times of cross section of oil suction chamber, then the pressure at the two in spool 6 lays respectively at sensitive cavity i and in oil suction chamber
Equal, spool 6 axially retains static balance, and this utility model is in zero-bit state.
If spool 6 rotates, then on spool 6, the area that intersects of high-pressure trough h and trough g and helicla flute e changes, thus
The pressure causing sensitive cavity i changes, and the stress balance of spool 6 is destroyed, and spool 6 produces axially-movable therewith, then cause fuel-displaced
Mouth A closes or opens.
When this utility model is in open mode, (from switch valve right-hand member when drive mechanism drives spool 6 to rotate clockwise
See), the area that high-pressure trough h and helicla flute i intersects reduces, and the area that low pressure hole slot g and helicla flute e intersects increases, and causes sensitivity
The pressure of chamber i reduces, and promotes spool 6 to move right simultaneously, and oil-out A closes.Continue to rotate clockwise, high-pressure trough h and spiral
The crossing area of groove e is gradually increased, and the area that intersects of low pressure hole slot g and helicla flute e is gradually reduced, until high-pressure trough h and spiral
The crossing area of groove e, low pressure hole slot g and helicla flute e intersect area the most equal time, axial force balance, spool 6 stop fortune
Dynamic, enter new poised state；Otherwise, when spool 6 counterclockwise rotates, above change procedure is just the opposite.
Therefore, the electro-hydraulic high-speed switch valve of 2D is the two-stage high-speed switch valve that spool has double freedom of motion, position, spool angle
Moving between axial displacement is linear relationship, and this utility model utilizes rotary magnet and shift fork lever body to drive spool to revolve
Transhipment is dynamic, it is achieved pilot valve function, promotes spool to move axially, it is achieved the high-speed opening and closing of valve port is special under the effect of oil liquid pressure difference
Property.
(2) drive mechanism
Drive mechanism is positioned at valve body 5 and the left side of motor a, and on it, driving lever 10 is connected in stepping by the first screw 13
On motor a output shaft 9, lower shift fork 14 is connected on spool 6 by the first screw 15, is line between upper driving lever 10 and lower shift fork 14
Contact coordinates, and its simple in construction can reduce the frictional force between driving lever and shift fork and the power output to motor effectively
Square requirement, improves the Frequency Response of switch valve.
Described motor a, as the electromechanical converter of switch valve, is positioned at valve body 5 upper end, the company of being fixed by screws in
On fishplate bar 1, protective cover is fixed by screws on connecting plate 1.Lid is connected on protective cover by screw 3, propping up of horizon bar
Frame 8 is fixed by screws on connecting plate 1.
In motor a drive, driving lever 10 rotates clockwise, then go up driving lever 10 and drive lower shift fork 14 and spool 6 to turn counterclockwise
Dynamic, the area that high-pressure trough h and helicla flute e intersects increases, and the area that trough g and helicla flute e intersects reduces, and causes sensitive cavity i
Pressure increase, spool 6 is to left movement, then the second shoulder 62 is removed from oil-out A, and oil-out A is unimpeded, fluid flow out, from
And this utility model is in open mode.
For ensureing to make spool 13 remain to be in zero-bit, at water in the case of the controller of switch valve is not powered on or lost efficacy
Installing shift fork back-moving spring 12 on flat bar, back-moving spring 12, horizon bar constitute the position-limit mechanism of upper shift fork.Upper shift fork is upon actuation
Can rotate, back-moving spring 12 can drive upper shift fork to reset when controller power-off.
(2) Zero maintaining mechanism
Equipped with jump ring, spring pad, valve core reseting spring 3 and spring base on spool 6, to prevent switch valve in transportation
Spool 6 is at the internal play of valve body 5, it is ensured that during zeroing, spool 6 does stable axially-movable, prevents from colliding with valve body 5, and with
Time ensure that spool is in absolute zero position in the case of controller is not powered on.
The moment that valve body is opened, spool 6 is moved to the left, and oppresses valve core reseting spring 3, when controller power-off, and valve
Core back-moving spring 3 drives spool 13 to move right and recovers zero-bit, and this utility model is closed.
Content described in this specification embodiment is only enumerating of the way of realization to utility model design, and this practicality is new
The protection domain of type is not construed as being only limitted to the concrete form that embodiment is stated, protection domain of the present utility model also wraps
Include those skilled in the art according to this utility model design it is conceivable that equivalent technologies means.
Claims (8)
1. the electro-hydraulic high-speed switch valve of spool outer shroud spiral flute type 2D, it is characterised in that: include valve body, drive valve body open or
The Zero maintaining mechanism that the drive mechanism of opening and closing and driving valve body reset；
Valve body includes the servo screw mechanism being made up of valve body and spool, and spool is rotatably arranged in valve body, spool from
A dextrad left side is sequentially provided with first shoulder, the second shoulder and the 3rd shoulder, and the right end cap of valve body and first shoulder are by body cavity gas
Close enclosure becomes sensitive cavity, first shoulder and the second shoulder that around the annular of spool, airtight for body cavity enclosure cyclization is gone out oil pocket, the
Two shoulders and the 3rd shoulder by airtight for body cavity enclosure cyclization around the annular oil suction chamber of spool；
Oil suction chamber connects with the oil-in on valve body, is provided with high-pressure channel along central shaft in spool, the arrival end of high-pressure channel with
Oil suction chamber connects；A pair axisymmetric high-pressure trough and an a pair axisymmetric trough is had on valve body, and high-pressure trough and trough
Being arranged alternately, high-pressure trough connects with the port of export of high-pressure channel；Low-pressure channel it is provided with vertically on described valve body, low-pressure channel
Arrival end connects with trough, and the port of export of low-pressure channel connects with going out oil pocket,
The outer wall of spool is provided with a pair axisymmetric helicla flute, and helicla flute from the right side of spool on spool spiral shell vertically
Rotation extends, and spiral fluted one end connects with sensitive cavity, and the spiral fluted other end is positioned at the movement locus of high-pressure trough and trough
On movement locus, and the distance between trough with high-pressure trough is equal with spiral fluted groove width, sensitive cavity by high-pressure channel and
Helicla flute connects with oil suction chamber；
Sensitive cavity is connected with going out oil pocket with low-pressure channel by helicla flute, trough, and goes out oil pocket with the oil-out on valve body even
Logical；Second shoulder length vertically is more than the diameter of oil-out, so that the second shoulder is complete when spool is positioned at closed mode
Seal hydraulic fluid port, and oil-out is positioned on the movement locus of the second shoulder；
It is arranged on the drive mechanism on the left of valve body and includes directly on top upper driving lever and lower shift fork located directly below, upper group
The lower half of bar is circular shifting block, and the first half of lower shift fork is the U-shaped fork of opening upwards, and the opening of the external diameter of shifting block and U-shaped fork
Mouth width is equal, and shifting block is plugged in U-shaped fork, and the rotary shaft of rotating machinery is fixing with upper driving lever to be connected, to drive above driving lever band
Dynamic lower shift fork rotates, and the bottom of lower shift fork is fixed with the left end of spool and is connected, with band movable valve plug synchronous axial system；The top of upper driving lever
Portion is slidably disposed on horizon bar, and the both sides of horizon bar are all arranged with the upper driving lever reset that upper driving lever is pushed against zero-bit
Spring, upper driving lever is vertically pushed against in lower shift fork by upper driving lever back-moving spring；
The left end of spool runs through valve body, and the left side of valve body is provided with the Zero maintaining mechanism forcing valve body to keep zero-bit, and described zero
Position maintaining body includes the valve core reseting spring being set on spool, and one end of valve core reseting spring is pushed against a left side for the 3rd shoulder
On side, forcing the second shoulder to be positioned at above oil-out and seal hydraulic fluid port, the other end is pushed against the jump ring being solidly set on spool
On.
2. the spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D as claimed in claim 1, it is characterised in that: described rotation sets
Standby for motor.
3. the spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D as claimed in claim 2, it is characterised in that: described trough
Semicircular in shape equal with high-pressure trough.
4. the spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D as claimed in claim 3, it is characterised in that: the left side of valve body
Being provided with connection seat, Zero maintaining mechanism is arranged in connection seat, and drive mechanism is arranged on above connection seat, connecting plate and valve body it
Between be connected by connecting seat, the two ends connecting seat are connected by the first sealing ring is airtight with connecting plate and valve body respectively.
5. the spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D as claimed in claim 4, it is characterised in that: valve core reset bullet
The right-hand member of spring is pushed against on the right flank of the 3rd shoulder by spring base, and the right-hand member end of valve core reseting spring is supported by spring pad
Tight on jump ring, spring base and the equal fixed cover of spring pad are located on spool.
6. the spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D as claimed in claim 5, it is characterised in that: described connection seat
It is furnished with lid with connecting plate.
7. the spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D as claimed in claim 6, it is characterised in that: described stepping electricity
Machine is arranged on the top of valve body, and is furnished with protective cover.
8. the spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D as claimed in claim 7, it is characterised in that: described upper driving lever
By the first screws clamp on the output shaft of motor, described lower shift fork passes through the second screws clamp on spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620660394.8U CN205806134U (en) | 2016-06-27 | 2016-06-27 | The spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620660394.8U CN205806134U (en) | 2016-06-27 | 2016-06-27 | The spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205806134U true CN205806134U (en) | 2016-12-14 |
Family
ID=57511772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620660394.8U Withdrawn - After Issue CN205806134U (en) | 2016-06-27 | 2016-06-27 | The spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205806134U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438625A (en) * | 2016-06-27 | 2017-02-22 | 浙江工业大学 | Two-dimensional electro-hydraulic high-speed switch valve with outer ring of valve element provided with spiral grooves |
| CN106545538A (en) * | 2016-12-23 | 2017-03-29 | 武汉市航天汉诺优科技有限公司 | A kind of novel numerical control revolves core type direct acting proportioning valve |
| CN111059321A (en) * | 2019-12-24 | 2020-04-24 | 中航工业南京伺服控制系统有限公司 | Double-circuit electro-hydraulic servo valve service life test and testing device |
| CN115360884A (en) * | 2022-10-24 | 2022-11-18 | 深圳伺峰科技有限公司 | Linear electric motor longmen is two drives's driver |
-
2016
- 2016-06-27 CN CN201620660394.8U patent/CN205806134U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438625A (en) * | 2016-06-27 | 2017-02-22 | 浙江工业大学 | Two-dimensional electro-hydraulic high-speed switch valve with outer ring of valve element provided with spiral grooves |
| CN106438625B (en) * | 2016-06-27 | 2018-11-13 | 浙江工业大学 | The electro-hydraulic high-speed switch valves of spool outer shroud spiral flute type 2D |
| CN106545538A (en) * | 2016-12-23 | 2017-03-29 | 武汉市航天汉诺优科技有限公司 | A kind of novel numerical control revolves core type direct acting proportioning valve |
| CN106545538B (en) * | 2016-12-23 | 2018-04-27 | 武汉市航天汉诺优科技有限公司 | A kind of valveless set numerical control rotation core type direct acting proportioning valve |
| CN111059321A (en) * | 2019-12-24 | 2020-04-24 | 中航工业南京伺服控制系统有限公司 | Double-circuit electro-hydraulic servo valve service life test and testing device |
| CN115360884A (en) * | 2022-10-24 | 2022-11-18 | 深圳伺峰科技有限公司 | Linear electric motor longmen is two drives's driver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205806134U (en) | The spool outer shroud electro-hydraulic high-speed switch valve of spiral flute type 2D | |
| CN106438625A (en) | Two-dimensional electro-hydraulic high-speed switch valve with outer ring of valve element provided with spiral grooves | |
| JP2014503059A (en) | Hard seal plug valve | |
| CN105822795A (en) | Inclined trough type 2D electro-hydraulic high-speed switching valve with variable transmission ratio transmission mechanism | |
| CN102587775B (en) | A kind of damping structure | |
| CN101666341A (en) | High frequency large flow 2D digital servo valve | |
| CN105545856B (en) | Core type proportional servo valve is revolved in a kind of numerical control | |
| CN103438243B (en) | Incremental electro-hydraulic digital flow control valve with double valve cores rotating oppositely | |
| CN106499837B (en) | A kind of convertible Blowoff ball valve and method for discharging pollution for pressure flush toilet | |
| CN203309160U (en) | Worm wheel valve | |
| CN102878135A (en) | Direct acting 2D electric-hydraulic proportional digital valve | |
| CN107605844A (en) | A kind of rotating hydraulic cylinder | |
| CN201513406U (en) | High-frequency high-flow 2D digital servo valve | |
| CN202468502U (en) | Dual-cylinder synchronous control hydraulic system and engineering machinery | |
| CN103016435B (en) | Valve for preventing hydraulic motor from reversing | |
| CN106382276B (en) | A kind of hydraulic lock assembly of conical surface soft seal | |
| CN103104569A (en) | Three-position four-way water pressure magnetic exchange valve used in deep sea | |
| CN208885678U (en) | The dedicated blade swing type hydraulic cylinder in robot motion joint | |
| CN103498942A (en) | Valve | |
| CN103591314A (en) | Angle valve and water outlet method thereof | |
| CN202883528U (en) | Direct-acting type 2 dimensional (2D) electric-hydraulic proportional digital valve | |
| CN203404149U (en) | Valve for preventing inverted rotation of hydraulic motor | |
| CN206036280U (en) | Embedded stop gear's ball valve | |
| CN206092556U (en) | Spring homing's microminiature 2D electromagnetic switch valve | |
| CN101865170B (en) | Follow-up reversing mechanism and follow-up reserving method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161214 Effective date of abandoning: 20181113 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20161214 Effective date of abandoning: 20181113 |