CN108468670A - Pressure regulator valve - Google Patents
Pressure regulator valve Download PDFInfo
- Publication number
- CN108468670A CN108468670A CN201810689424.1A CN201810689424A CN108468670A CN 108468670 A CN108468670 A CN 108468670A CN 201810689424 A CN201810689424 A CN 201810689424A CN 108468670 A CN108468670 A CN 108468670A
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- China
- Prior art keywords
- spool
- pressure regulator
- valve
- regulator valve
- elastic component
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims abstract description 64
- 230000033001 locomotion Effects 0.000 claims abstract description 16
- 230000003276 anti-hypertensive effect Effects 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 24
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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
- F15B13/022—Flow-dividers; Priority valves
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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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
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/363—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a piston
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Fluid Pressure (AREA)
- Safety Valves (AREA)
Abstract
The present invention provides a kind of pressure regulator valve, and to control the pressure of fluid, the pressure regulator valve includes fixed seat, valve pocket and the spool being arranged in valve pocket, limit base, elastic component and positioning seat, and the fixed seat is connected to one end of the valve pocket；One end of the elastic component supports the positioning seat, and the other end acts on one end of the spool；The limit base is set to the valve pocket and the other end close to spool；Oil inlet is offered in the fixed seat, actuator port is offered on the valve pocket, the runner to connect with the oil inlet is formed between the spool and valve pocket, the break-make of runner described in motion control of the spool in the valve pocket, fluid enters the pressure regulator valve by the oil inlet, flows out the pressure regulator valve by actuator port after the antihypertensive effect of the runner.The pressure regulator valve provided by the invention, can substitute the oil pressure that hydraulic integrated valve block undertakes oil inlet, and the Stability and dependability of whole system improves.
Description
Technical field
The present invention relates to fluid control technology field more particularly to a kind of pressure regulator valves for fluid control.
Background technology
It is frequently necessary to setting pressure regulator valve in hydraulic system with the pressure of fluid in regulating system, is made by the way that multistage oil circuit is arranged
The pressure for obtaining fluid disclosure satisfy that the job requirements of different executing agencies.With the hydraulic pressure used in large scale equipment or engineering machinery
For system, the executing agency directly done work to load in large scale equipment or engineering machinery needs to be in relatively high work
Under oil pressure, and the executing agency of the auxiliary systems such as cooling system, pilot control system, braking system often requires that in relatively
Under low operating oil pressure.At this moment pressure regulator valve is arranged in hydraulic system needs in hydraulic integrated valve block, to form operating oil pressure difference
Multi-stage pressure regulating circuit, with match different types of executing agency to operating oil pressure difference require.
But current pressure regulator valve still without changing needs that the hydraulic integrated valve block being correspondingly connected with is allowed to directly take on oil inlet
The setting of the higher input pressure of mouth, along with the requirement of the integraty of hydraulic integrated valve block, the oil inlet high pressure of local location forces
The entirety of hydraulic integrated valve block is required for being made of high-strength material.This increases not only the manufacture of hydraulic integrated valve block hardly possiblies
Degree, the cost of the hydraulic integrated valve block and hydraulic system that also improve limit the application of hydraulic system.
Invention content
In view of this, it is necessary to provide a kind of improved pressure regulator valve, working oil of the pressure regulator valve by oil inlet and after depressurizing
Mouth separation, and hydraulic integrated valve block is replaced to bear the input pressure of oil inlet, use the stability of the hydraulic system of the pressure regulator valve
It is improved with reliability, overall cost declines.
The present invention provides a kind of pressure regulator valve, to control the pressure of fluid, the pressure regulator valve include fixed seat, valve pocket and
Spool, limit base, elastic component and the positioning seat being arranged in valve pocket, the fixed seat are connected to one end of the valve pocket；It is described
One end of elastic component supports the positioning seat, and the other end acts on one end of the spool；The limit base is set to the valve
The other end of set and close spool；Oil inlet is offered in the fixed seat, and actuator port, the valve are offered on the valve pocket
The runner to connect with the oil inlet is formed between core and valve pocket, is flowed described in motion control of the spool in the valve pocket
The break-make in road, fluid enter the pressure regulator valve by the oil inlet, pass through working oil after the antihypertensive effect of the runner
Mouth flows out the pressure regulator valve.
Further, the runner includes being opened at least one throttling channel of the spool side and being opened in described
Recirculation hole on valve pocket, the throttling channel extend along the central axial direction of the spool and are interconnected with the recirculation hole.
Further, feedback channel, one end of the feedback channel and the throttling channel phase are further opened on the spool
Connection, the other end of the feedback channel close on the end face of the limit base through the spool.
Further, the feedback channel includes along the first hole that the spool radially opens up and along spool axial direction
The second hole opened up, the aperture in first hole are less than the aperture in second hole.
Further, be further opened with overflow port on the valve pocket, the overflow port be located at the actuator port close on it is described
The side of elastic component, when the throttling channel is at the maximum position that the spool is located remotely from the elastic component with the overflow port
Mutually disconnect.
Further, connecting seat is provided between the elastic component and the spool, the elastic component passes through the connection
Seat acts on the spool.
Further, one end that the spool is in contact with the connecting seat is set as spherical, is opened on the connecting seat
Equipped with the first groove to match with the spherical.
Further, the spool closes on one end of the elastic component and is further opened with second to connect with the throttling channel
Groove.
Further, second groove is gradually tapered up along the direction for being directed toward the elastic component, the cross of second groove
Section is V-shaped or U-shaped.
Further, the spool is equipped with the first sealing and the second sealing, and the first sealing is sealing the stream
Gap between through-hole and the spool, between second sealing is to seal between the overflow port and appended spool
Gap.
The pressure regulator valve provided by the invention, can substitute the oil pressure that hydraulic integrated valve block undertakes oil inlet, and use is above-mentioned
The Stability and dependability of the cost reduction of the hydraulic system of pressure regulator valve, whole system improves.
Description of the drawings
Fig. 1 is the structural schematic diagram of pressure regulator valve 100 in one embodiment of the present invention.
Fig. 2 is structural schematic diagram when pressure regulator valve 100 shown in Fig. 1 is in another working condition.
Fig. 3 is the enlarged diagram of 100 part-structure of pressure regulator valve shown in Fig. 1.
Fig. 4 is the enlarged diagram of part-structure when pressure regulator valve 100 shown in Fig. 2 is in another working condition.
Main element symbol description
| Pressure regulator valve | 100 |
| Spool | 10 |
| Runner | 11 |
| Throttling channel | 12 |
| Feedback channel | 13 |
| First hole | 131 |
| Second hole | 132 |
| Third groove | 14 |
| Second groove | 15 |
| First sealing | 16 |
| Second sealing | 17 |
| Valve pocket | 20 |
| Actuator port | 21 |
| Recirculation hole | 22 |
| Overflow port | 23 |
| Sealing element | 24、32 |
| Fixed seat | 30 |
| Oil inlet | 31 |
| Limit base | 40 |
| Elastic component | 50 |
| Connecting seat | 51 |
| First groove | 52 |
| Positioning seat | 60 |
Following specific implementation mode will be further illustrated the present invention in conjunction with above-mentioned attached drawing.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should be noted that when component is referred to as " being installed in " another component, it can be installed directly in another group
On part or there may also be components placed in the middle.When a component is considered as " being set to " another component, it can be straight
It connects and is arranged on another component or may be simultaneously present component placed in the middle.When a component be considered as " being fixed on " another
Component, it can be directly anchored on another component or may be simultaneously present component placed in the middle.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases
Any and all combinations of the Listed Items of pass.
It please refers to Fig.1 and Fig. 2, Fig. 1 is the structural schematic diagram of pressure regulator valve 100 in one embodiment of the present invention, Fig. 2 is figure
Pressure regulator valve 100 shown in 1 is in structural schematic diagram when another working condition.Pressure regulator valve 100 is adjusting fluid in hydraulic system
Pressure, pressure regulator valve 100 can reduce the oil pressure of the current branch of hydraulic system after being packed into hydraulic system, to by hydraulic pressure system
The oil pressure of system is classified, and is required the difference of operating oil pressure with matching different executing agencies.
Pressure regulator valve 100 includes spool 10, valve pocket 20, fixed seat 30, limit base 40, elastic component 50 and positioning seat 60, valve
Core 10 is placed in valve pocket 20 and sliding, fixed seat 30 can be fixedly connected with valve pocket 20 in valve pocket 20, the one of elastic component 50
End is held in positioning seat 60, and the other end acts on spool 10, and the limit base 40 to limit 10 movement travel of spool is set to valve
20 one end far from elastic component 50 are covered, oil inlet 31 is offered in fixed seat 30, formation and oil inlet between spool 10 and valve pocket 20
The runners 11 that mouth 31 is mutually communicated, the size of sliding control runner 11 of the spool 10 in valve pocket 20, flow into from oil inlet 31 is interior
Relatively high pressure fluid pass through runner 11 pressure release after the actuator port 21 that is opened up from valve pocket 20 flow out, to complete pressure regulation
The fluid decompression of relatively high pressure is the adjustment process of the fluid of relatively low pressure by valve 100.
Spool 10 controls the size of 11 sectional area of runner by the sliding of itself, to control pressure regulator valve 100 in pressure regulation
Working condition, valve pocket 20 is to accommodating spool 10, limit base 40, elastic component 50 and positioning seat 60, and fixed seat 30 is to fixation
Pressure regulator valve 100 is simultaneously fixedly installed on the position of outside need installation by valve pocket 20, and limit base 40 is limiting the fortune of spool 10
Dynamic stroke, elastic component 50 is to provide the pressure regulation desired value of pressure regulator valve 100, and the fluid pressure value after 100 pressure regulation of pressure regulator valve is by bullet
Property part 50 the elastic force of offer determine that positioning seat 60 is to fixed elastic component 50.Valve pocket 20 is oriented under the fixation of fixed seat 30
The movement of spool 10, elastic component 50 act on spool 10 under the supporting of positioning seat 60.The sliding control runner 11 of spool 10 is cut
The size of area, fluid is by having lost the Fluid pressure of part after runner 11, to realize 100 fluid pressure of pressure regulator valve
It adjusts, hydraulic system realizes that oil circuit is classified by pressure regulator valve 100, to match the different operating of different executing agencies in hydraulic system
The requirement of oil pressure.
Spool 10 is placed in the hollow cavity that valve pocket 20 opens up, and is further opened on valve pocket 20 and is mutually communicated with oil inlet 31
Recirculation hole 22, the side of spool 10 offers the throttling channel 12 of annular distribution along the circumferential direction of own axes, and throttling channel 12 is along valve
The central axial direction of core 10 extends and is mutually communicated with recirculation hole 22.Throttling channel 12 constitutes channel 11 with recirculation hole 22, flows into
The runner 11 that fluid in oil inlet 31 is formed by throttling channel 12 and recirculation hole 22, into actuator port 21.Due to runner
11 sectional area is relatively small, and the pressure loss, the pressure reduction of fluid, under fluid flows into has occurred in fluid when by runner 11
In level-one hydraulic circuit, to match the operating oil pressure of executing agency in next stage hydraulic circuit.
In present embodiment, throttling channel 12 is annularly opened up with actuator port 21 and overflow port 23, the section that ring-type opens up
Chute 12, actuator port 21 and overflow port 23 have symmetry, and can offset each other fluid injection in fluid circulation and overflow
To the reaction force of pressure regulator valve 100, to improve stability when pressure regulator valve 100 works.Certainly, throttling channel 12, actuator port
21 and overflow port 23 can also be opened up according to duty requirements as other shapes.
The approximate center of valve pocket 20 offers to house the cavity (not labeled) of spool 10, exists to Pilot poppet 10
Movement in valve pocket 20.The one end of valve pocket 20 far from limit base 40 offers to house the cavity of elastic component 50 and positioning seat 60
23, the side that valve pocket 20 closes on limit base 40 is fixedly connected with fixed seat 30.
Overflow port 23 is further opened on valve pocket 20, overflow port 23 is located at the side that actuator port 21 closes on elastic component 50.Valve
Core 10 is most more than impulse stroke when supporting limit base 40 namely at spool 10 when, throttling channel 12 is not passed through with 23 phase of overflow port
Logical, extra fluid flow is discharged when Fluid pressure is excessively high with for pressure regulator valve 100 for overflow port 23, to reduce the pressure of fluid
Power protects hydraulic system.
Certainly, if pressure regulator valve 100 protects the overflow of hydraulic system without considering, be arranged on pressure regulator valve 100 in order to
The structure (such as overflow port 23) for realizing flood protection feature, can also omit.
In present embodiment, the lateral surface of valve pocket 20 is equipped with screw thread, valve pocket 20 and fixation with the medial surface of fixed seat 30
Seat 30 is fixed to each other by way of being spirally connected.It is appreciated that in other implementations, valve pocket 20 and fixed seat 30 can be with
It is fixed to each other using other connection types.
It is additionally provided with sealing element 24 on the side that valve pocket 20 and fixed seat 30 contact with each other, sealing element 24 is sealing valve pocket
Gap between 20 and fixed seat 30 avoids fluid from being flowed out except pressure regulator valve 100 by the gap, causes the leakage of fluid.
In order to improve spool 10 to the recirculation hole 22 opened up on valve pocket 20 and the sealing function of overflow port 23, spool 10 is also
Including the first sealing 16 and the second sealing 17, the first sealing 16 and the second sealing 17 are relatively arranged on the two of spool 10
End, the first sealing 16 is to seal the gap between recirculation hole 22 and spool 10, and the second sealing 17 is sealing overflow port
Gap between 23 and spool 10, to avoid fluid media (medium) from passing through the gap between recirculation hole 22 and overflow port 23 and spool 10
It flows outwardly.
The medial surface of fixed seat 30 is spirally connected with valve pocket 20 and fixes the relative position of valve pocket 20, the lateral surface of fixed seat 30 with
External stability element is fixed to each other, to which pressure regulator valve 100 to be plugged on the predeterminated position of hydraulic system.
In present embodiment, the lateral surface of fixed seat 30 is equipped with screw thread, and fixed seat 30 will be adjusted by the connection type being spirally connected
Pressure valve 100 is installed on the predeterminated position of hydraulic system.It is appreciated that in other implementations, fixed seat 30 can be with
It is installed on the predeterminated position of hydraulic system using other inserting modes such as clamping.
In present embodiment, external stability element is the hydraulic integrated valve block (not shown) in hydraulic system, pressure regulator valve 100
It is integrated in hydraulic system by the hydraulic integrated valve block.
Valve pocket 20 is also installed with multiple sealing elements 32 on the lateral surface of fixed seat 30, to seal pressure regulator valve 100 and liquid
The installation gap between integrated valve block is pressed, avoids fluid from being flowed outwardly by the gap, causes to leak.
Limit base 40 is set to the one end of valve pocket 20 far from elastic component 50, and limit base 40 is embedded in the hollow cavity that valve pocket 20 opens up
In vivo, limiting the movement travel of spool 10 in the cavity.In present embodiment, 40 permitted spool 10 of limit base is most
Big movement travel is that spool 10 moves to the position concordant with recirculation hole 22 of throttling channel 12, and fluid can smoothly pass over stream at this time
Road 11 flows into actuator port 31.
The maximum stroke movement for the spool 10 that limit base 40 allows is more than above range namely throttling channel 12 is more than recirculation hole
22 open up position, and fluid can be made by generating turbulent flow when runner 11, be unfavorable for fluid and be shown in a fully open operation in pressure regulator valve 100
When circulation.The maximum stroke movement for the spool 10 that limit base 40 allows is too low namely spool 10 is in maximum stroke movement, section
The also less than recirculation hole 22 of chute 12 opens up position, and velocity of liquid assets when can reduce fluid by runner 11 reduces pressure regulator valve 100
Adjusting efficiency.
One end of elastic component 50 is held in positioning seat 60, and the other end acts on spool 10, and elastic component 50 is providing pressure regulation
The pressure regulation desired value of valve 100, the fluid pressure value after pressure regulator valve 100 reduces are determined by the elastic force of the offer of elastic component 50.Work as tune
After the completion of 100 pressure regulation of pressure valve, the elastic force that Fluid pressure is provided with elastic component 50 mutually balances.
In present embodiment, elastic component 50 is spring.It is appreciated that in other implementations, elastic component 50 may be used also
With using the other kinds of elastic element such as rubber column, if the elastic component 50 can elastic reaction in spool 10.
Positioning seat 60 is fixed on the one end of valve pocket 20 far from limit base 40, and one end of positioning seat 60 is along center axis side
To extending and being formed protrusion 61, positioning seat 60 is sheathed on elastic component 50 by protrusion 61, is moved to limit the radial of elastic component 50
Dynamic and axial movement.
In present embodiment, positioning seat 60 is fixedly installed on by way of being spirally connected in valve pocket 20.It is appreciated that at other
Embodiment in, positioning seat 60 can also be set to valve pocket 20 by other connection types such as riveting, the solid, electromagnetic adsorption of glue
It is interior.
Positioning seat 60 is screwed in and is screwed out into valve pocket 20,50 preset decrement of elastic component can be adjusted, to adjust
The pressure regulation desired value of pressure valve 100.
In present embodiment, elastic component 50 is simultaneously not directly placed on spool 10, is provided between elastic component 50 and spool 10
Connecting seat 51, elastic component 50 act on spool 10 by connecting seat 51.Connecting seat 51 is set between elastic component 50 and spool 10,
It enables to the diameter of elastic component 50 to select larger numerical value, breaks through in order to which elastic component 50 to be sheathed on spool 10, and it is necessary
Select the limitation of the smaller elastic component 50 of diameter.
In present embodiment, the end face that spool 10 is in contact with connecting seat 51 is set as Surface of Sphere, is opened up on connecting seat 51
There are the first groove 52 to match with 10 Surface of Sphere of spool, such connecting seat 51 can mostly freely when contacting with each other with spool 10
Degree floats, and increases the reliability that spool 10 is connect with connecting seat 51, improves the reliability and stability of pressure regulator valve 100.
Certainly, in other implementations, if not considering the diameter On The Choice and elastic component 50 of elastic component 50
The problem that is connected firmly between spool 10, connecting seat 51 can also omit, at this time one end of 50 remotely located seat 60 of elastic component
It is arranged and is held on the tip of spool 10.
It is the enlarged diagram of 100 part-structure of pressure regulator valve shown in Fig. 1, Fig. 4 Fig. 2 also referring to Fig. 3 and Fig. 4, Fig. 3
The enlarged diagram of part-structure when shown pressure regulator valve 100 is in another working condition.The approximate center of spool 10 is provided with
Feedback channel 13, the feedback channel 13 is to the pressure of 10 fed-back fluid of spool so that spool 10 can be according to different stream
Body pressure adjusts the operating position of itself.The throttling channel 12 and spool 10 that feedback channel 13 is opened up through 10 side of spool close on limit
The end face of position seat 40, fluid can flow to the endface that spool 10 closes on limit base 40 by feedback channel 13 from throttling channel 12,
And collect at spool 10 and limit base 40.
In present embodiment, feedback channel 13 includes along the first hole 131 that spool 10 radially opens up and along 10 axis of spool
To the second hole 132 opened up, the first hole 131 is mutually communicated with the second hole 132.Radial direction along spool 10 opens up the respectively with axial
One hole 131 and the second hole 132 can be convenient for the processing in the first hole 131 and the second hole 132 and ensure the first hole 131 and the second hole
132 machining accuracy.The interior fluid for flowing through runner 11 first passes through the first hole 131, then reaches spool 10 by the second hole 132 and close on
On the end face of limit base 40.
In present embodiment, the aperture in the first hole 131 is less than the aperture in the second hole 132, and the aperture in the first hole 131 is relatively
It is small, damping hole can be played the role of, alleviate pressure oscillation of the fluid media (medium) by feedback channel 13 when, spool 10 is improved and move
Stability.
It is appreciated that feedback channel 13 be not limited to only use in the above embodiment it is radial with axially through open
If mode, in other implementations, feedback channel 13 can be in such a way that the others such as curve perforation open up, as long as the feedback
Fluid conduction can be closed on the endface of limit base 40 by channel 13 to spool 10.
Spool 10 is collected to for the ease of fluid by the second hole 132 to close on the end face of limit base 40, spool 10 closes on
The end face of limit base 40 has opened up the third groove 14 of cyclic annular setting, and third groove 14 reduces 10 end face of fluid flow through valve core and exists
The circulation stroke collected between limit base 40 and spool 10 reduces 10 end face of spool to the obstruction of fluid, improves pressure regulator valve
100 reliability and stability.
In present embodiment, one end that spool 10 closes on elastic component 50 is further opened with second be mutually communicated with throttling channel 11
Groove 15, second groove 15 are gradually tapered up along the direction for being directed toward elastic component 50, and due to opening up for the second groove 15, fluid is logical
When crossing the second groove 15 and the exclusion pressure regulator valve 100 of overflow port 23, sectional area when fluid initially circulates is smaller, subsequently when circulation
Sectional area is larger.This makes pressure regulator valve 100 in overflow, and the circulation of overflow is slowly increased, high speed when avoiding fluid overflow
The generation of expulsion events improves the stability of pressure regulator valve 100.
In present embodiment, the second groove 15 is V-shaped groove, i.e. the cross section of the second groove 15 is V-shaped.It is appreciated that
In other embodiments, the second groove 15 can also use the groove of other cross-sectional shapes such as U-lag, as long as the second groove
15 edges are gradually tapered up towards the direction of elastic component 50.
The course of work of lower pressure regulator valve 100 is illustrated below：
Fluid is flowed by oil inlet 31 in pressure regulator valve 100, and the fluid flowed into pressure regulator valve 100 passes through recirculation hole 22 and section
Chute 12 is formed by runner 11 and enters in actuator port 31, since the sectional area of runner 11 is relatively small, fluid flows road
The pressure loss is produced when 11, therefore enters the pressure reduction of the fluid at actuator port 31, it is right to realize pressure regulator valve 100
The adjusting of Fluid pressure；
Due to the presence of feedback channel 13, fluid is collected to institute's shape between spool 10 and limit base 40 by feedback channel 13
At cavity in, with fluid constantly pouring in this cavity, the trend of cavity volume extension pushes spool 10 towards elasticity
Part 50 moves, and the movement of spool 10 towards elastic component 50 makes recirculation hole 22 is formed with throttling channel 12 to misplace, recirculation hole 22 and section
Effective actual internal area that chute 12 is formed by runner 11 reduces, to realize throttling function of the pressure regulator valve 100 in pressure regulation；
As spool 10 is towards the movement of elastic component 50, the decrement of elastic component 50 increases, therefore elastic component 50 is provided
Elastic force be just continuously improved, fluid constantly pours between spool 10 and limit base 40 and the thrust for pushing spool 10 to move that is formed
Overcome by the continuous increased elastic force that elastic component 50 provides.Under the interference for not considering the other factors such as friction, when spool 10
When the elastic dynamic balance that the fluid thrust that is subject to is provided with elastic component 50,10 stop motion of spool, at this time by runner 11 after
Fluid pressure is 100 preset pressure regulation desired value of pressure regulator valve, and default decrement or the selection for adjusting elastic component 50 are different
Elastic component 50 can adjust the pressure regulation desired value of pressure regulator valve 100, to complete the quantitative adjusting of 100 fluid pressure of pressure regulator valve；
When the pressure of fluid by being flowed into pressure regulator valve 100 at oil inlet 21 constantly increases, spool 10 is towards elasticity
The stroke that part 50 moves will increase, and when the hypertonia of fluid, the movement formation that spool 10 deepens continuously can make spool
Throttling channel 12 on 10 is mutually communicated with overflow port 23, and pressure regulator valve 100 is by overflow port 23 by excessive fluid flow discharge liquor
Except pressure system；Extra fluid flow discharge, the pressure reduction of fluid, elastic component 50 push spool 10 along far from 50 elastic
Direction move and throttling channel 12 be separated from each other with overflow port 23, overflow port 23 seal, to realize pressure regulator valve 100 overflow
Flow function.
Pressure regulator valve 100 provided by the invention detaches oil inlet 21 with the actuator port 31 after decompression, and oil inlet 21 opens up
In fixed seat 30, actuator port 31 is opened on valve pocket 20, and setting in this way can only to need fixed seat in hydraulic system
30 are made of high-strength materials, external stability element, if hydraulic press city valve block is without high-strength material, hydraulic system
Overall cost declines.
Those skilled in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as in the spirit of the present invention, made by embodiment of above
Appropriate change and variation is all intended to fall within the scope of the claimed invention.
Claims (10)
1. a kind of pressure regulator valve, to control the pressure of fluid, which is characterized in that the pressure regulator valve include fixed seat, valve pocket and
Spool, limit base, elastic component and the positioning seat being arranged in valve pocket, the fixed seat are connected to one end of the valve pocket；It is described
One end of elastic component supports the positioning seat, and the other end acts on one end of the spool；The limit base is set to the valve
The other end of set and close spool；Oil inlet is offered in the fixed seat, and actuator port, the valve are offered on the valve pocket
The runner to connect with the oil inlet is formed between core and valve pocket, is flowed described in motion control of the spool in the valve pocket
The break-make in road, fluid enter the pressure regulator valve by the oil inlet, pass through working oil after the antihypertensive effect of the runner
Mouth flows out the pressure regulator valve.
2. pressure regulator valve as described in claim 1, which is characterized in that the runner includes being opened in the spool side at least
One throttling channel and the recirculation hole being opened on the valve pocket, the throttling channel extend along the central axial direction of the spool
And it is interconnected with the recirculation hole.
3. pressure regulator valve as claimed in claim 2, which is characterized in that be further opened with feedback channel, the feedback on the spool
The one end in channel is connected with the throttling channel, and the other end of the feedback channel closes on the limit base through the spool
End face.
4. pressure regulator valve as claimed in claim 3, which is characterized in that the feedback channel includes radially being opened up along the spool
First hole and along the second hole that the spool axially opens up, the aperture in first hole is less than the aperture in second hole.
5. pressure regulator valve as claimed in claim 2, which is characterized in that be further opened with overflow port, the overflow port on the valve pocket
The side of the elastic component is closed on positioned at the actuator port, the throttling channel is located remotely from the elastic component in the spool
It is mutually disconnected with the overflow port when at maximum position.
6. pressure regulator valve as described in claim 1, which is characterized in that be provided with connection between the elastic component and the spool
Seat, the elastic component act on the spool by the connecting seat.
7. pressure regulator valve as claimed in claim 6, which is characterized in that one end setting that the spool is in contact with the connecting seat
For spherical, the first groove to match with the spherical is offered on the connecting seat.
8. pressure regulator valve as claimed in claim 2, which is characterized in that one end that the spool closes on the elastic component is further opened with
The second groove to connect with the throttling channel.
9. pressure regulator valve as claimed in claim 8, which is characterized in that second groove along be directed toward the direction of the elastic component by
Taper contracting, the cross section of second groove is V-shaped or U-shaped.
10. pressure regulator valve as claimed in claim 5, which is characterized in that the spool is equipped with the first sealing and the second sealing,
For first sealing to seal the gap between the recirculation hole and the spool, second sealing is described excessive to seal
Gap between head piece and appended spool.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810689424.1A CN108468670B (en) | 2018-06-28 | 2018-06-28 | Pressure regulating valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810689424.1A CN108468670B (en) | 2018-06-28 | 2018-06-28 | Pressure regulating valve |
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| CN108468670A true CN108468670A (en) | 2018-08-31 |
| CN108468670B CN108468670B (en) | 2024-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810689424.1A Active CN108468670B (en) | 2018-06-28 | 2018-06-28 | Pressure regulating valve |
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| JPH0632218A (en) * | 1992-07-16 | 1994-02-08 | Toyota Motor Corp | Liquid pressure control device |
| RU2011105571A (en) * | 2011-02-14 | 2012-08-20 | Открытое акционерное общество "Павловский машиностроительный завод ВОСХОД" - ОАО "ПМЗ ВОСХОД" (RU) | HYDRAULIC REDUCTION VALVE |
| CN102865395A (en) * | 2011-07-04 | 2013-01-09 | 贵州红林机械有限公司 | Inserted pressure regulating valve |
| CN103423492A (en) * | 2012-04-26 | 2013-12-04 | 哈米尔顿森德斯特兰德公司 | Pressure regulating valve |
| CN203836279U (en) * | 2014-03-19 | 2014-09-17 | 徐工集团工程机械股份有限公司 | Built-in pressure reducing valve |
| CN203880163U (en) * | 2014-05-16 | 2014-10-15 | 浙江华益机械有限公司 | Leak-free pressure reducing valve |
| CN105065741A (en) * | 2015-08-24 | 2015-11-18 | 中国科学院武汉岩土力学研究所 | Self-operated segmented pressure control valve |
| CN208565114U (en) * | 2018-06-28 | 2019-03-01 | 浙江华益精密机械股份有限公司 | Pressure regulator valve |
-
2018
- 2018-06-28 CN CN201810689424.1A patent/CN108468670B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0632218A (en) * | 1992-07-16 | 1994-02-08 | Toyota Motor Corp | Liquid pressure control device |
| RU2011105571A (en) * | 2011-02-14 | 2012-08-20 | Открытое акционерное общество "Павловский машиностроительный завод ВОСХОД" - ОАО "ПМЗ ВОСХОД" (RU) | HYDRAULIC REDUCTION VALVE |
| CN102865395A (en) * | 2011-07-04 | 2013-01-09 | 贵州红林机械有限公司 | Inserted pressure regulating valve |
| CN103423492A (en) * | 2012-04-26 | 2013-12-04 | 哈米尔顿森德斯特兰德公司 | Pressure regulating valve |
| CN203836279U (en) * | 2014-03-19 | 2014-09-17 | 徐工集团工程机械股份有限公司 | Built-in pressure reducing valve |
| CN203880163U (en) * | 2014-05-16 | 2014-10-15 | 浙江华益机械有限公司 | Leak-free pressure reducing valve |
| CN105065741A (en) * | 2015-08-24 | 2015-11-18 | 中国科学院武汉岩土力学研究所 | Self-operated segmented pressure control valve |
| CN208565114U (en) * | 2018-06-28 | 2019-03-01 | 浙江华益精密机械股份有限公司 | Pressure regulator valve |
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|---|---|
| CN108468670B (en) | 2024-06-25 |
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