CN107143543A - A kind of hydraulic control valve group and control valve - Google Patents
A kind of hydraulic control valve group and control valve Download PDFInfo
- Publication number
- CN107143543A CN107143543A CN201710289731.6A CN201710289731A CN107143543A CN 107143543 A CN107143543 A CN 107143543A CN 201710289731 A CN201710289731 A CN 201710289731A CN 107143543 A CN107143543 A CN 107143543A
- Authority
- CN
- China
- Prior art keywords
- valve
- oil
- relief pressure
- seal
- bonnet
- 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
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of hydraulic control valve, belong to hydraulic component field.Hydraulic control valve group includes control valve and overflow valve, and control valve includes：Valve body and bonnet, control valve also includes Venturi tube and relief pressure valve cartridge, Venturi tube is fixed and is inserted into valve body, Venturi tube includes entrance and contraction section, one end of entrance is connected with valve bonnet seal, relief pressure valve cartridge is slidably mounted in entrance, relief pressure valve cartridge is provided with vent, entrance is provided with into oil hole, one end of relief pressure valve cartridge seals and arranged towards bonnet, passage is provided with relief pressure valve cartridge, the internal diameter of contraction section is gradually reduced from the one end connected with relief pressure valve cartridge to the other end, contraction section is communicated with the first extraction channel, first extraction channel is connected with the first control port of overflow valve, contraction section is communicated with the second extraction channel, second control port and oil-out of second extraction channel with overflow valve are connected.The present invention solves the problem of valve group takes a large amount of installing spaces.
Description
Technical field
The invention belongs to hydraulic component field, more particularly to a kind of hydraulic control valve group and control valve.
Background technology
In hydraulic system, it will usually executive component is controlled by the hydraulic control valve group of difference in functionality, with reality
The various actions of existing executive component.For example, when needing to control the rotating speed of executive component, can be by pressure-reducing valve, controllable throttle valve
By oil pipe connection being combined into a hydraulic control valve group with the hydraulic component such as pressure compensator, (each hydraulic component has
Have independent valve body), to realize that hydraulic control valve group is controlled the rotating speed of executive component.
During the present invention is realized, inventor has found that prior art at least has problems with：
Because the hydraulic components such as pressure-reducing valve, controllable throttle valve and pressure compensator have independent valve body respectively, so
Bulky, the substantial amounts of installing space of occupancy of hydraulic control valve group.
The content of the invention
In order to solve the problem of hydraulic control valve group takes a large amount of installing spaces, the embodiments of the invention provide a kind of hydraulic pressure
Control valve group and control valve.The technical scheme is as follows：
On the one hand, the embodiments of the invention provide a kind of hydraulic control valve group, the hydraulic control valve group includes control valve
And overflow valve, the control valve includes：Valve body and the bonnet installed in described valve body one end, the valve body provided with oil inlet and
Oil-out, the bonnet is provided with control port, and the control valve also includes Venturi tube and relief pressure valve cartridge, the Venturi tube
Fixation is inserted into the valve body, and the Venturi tube includes the entrance and contraction section that dorsad the bonnet extends successively, institute
The one end for stating entrance is connected with the valve bonnet seal and connected with the control port, and the relief pressure valve cartridge is slidably mounted
In the entrance, the relief pressure valve cartridge be provided with vent, the entrance be provided be used for connect the vent and
The oil inlet enters oil hole, one end sealing of the relief pressure valve cartridge and towards bonnet arrangement, in the relief pressure valve cartridge
Provided with the passage for connecting the vent and the contraction section, the internal diameter of the contraction section with the relief pressure valve cartridge by connecting
One end be gradually reduced to the other end, the other end of the contraction section is connected with the oil-out, the close institute of the contraction section
The position for stating relief pressure valve cartridge is communicated with the first extraction channel, the first control port of first extraction channel and the overflow valve
Connection, position of the contraction section away from the relief pressure valve cartridge is communicated with the second extraction channel, second extraction channel and institute
The second control port for stating overflow valve is connected with oil-out, the oil inlet of the overflow valve and the control oil on the bonnet
Mouth connection.
In a kind of implementation of the present invention, it is described enter oil hole be mounting hole, the waist-shaped hole is along the pressure-reducing valve
The moving direction extension of core.
In another implementation of the present invention, first seal and the are interval with the outer wall of the relief pressure valve cartridge
Two seals, the first seal and the second seal are folded between the relief pressure valve cartridge and the entrance,
The vent and it is described enter oil hole be respectively positioned between the first seal and the second seal.
In another implementation of the present invention, the inwall of the valve body is provided with support rim, the Venturi tube
Outer wall provided with contraposition boss, the contraposition boss is shelved on the support rim.
In another implementation of the present invention, it is provided with end cap, the one side of the end cap and sets on the valve body
There is installation groove, the bonnet is installed in the installation groove, and the one side of the end cap is fixed on the valve body.
In another implementation of the present invention, the bonnet is provided with the 3rd seal, the 3rd seal folder
It is located between the bonnet and the installation groove.
In another implementation of the present invention, the outer wall of the entrance is provided with the 4th seal and the 5th sealing
Part, the 4th seal and the 5th seal are folded between the valve body and the entrance, the oil inlet and
It is described enter oil hole be respectively positioned between the 4th seal and the 5th seal.
The present invention another implementation in, the Venturi tube also include diffuser, the diffuser with it is described
Contraction section is connected, and the internal diameter of the diffuser is gradually increased from the one end connected with the contraction section to the other end.
In another implementation of the present invention, valve bottom is additionally provided with the valve body, the valve bottom is arranged on the valve
The body other end, the diffuser offsets with the valve bottom, and the valve bottom is provided with oil-out, the oil-out and the diffuser
Connection.
On the other hand, the embodiments of the invention provide a kind of control valve, the control valve includes：Valve body and installed in described
The bonnet of valve body one end, the valve body is provided with oil inlet and oil-out, and the bonnet is provided with control port, the control valve
Also include Venturi tube and relief pressure valve cartridge, the Venturi tube is fixed and is inserted into the valve body, and the Venturi tube includes the back of the body
The entrance and contraction section extended successively to the bonnet, one end of the entrance be connected with the valve bonnet seal and with it is described
Control port is connected, and the relief pressure valve cartridge is slidably mounted in the entrance, and the relief pressure valve cartridge is provided with vent,
The entrance be provided be used to connecting the vent and the oil inlet enter oil hole, one end of the relief pressure valve cartridge is close
Seal and towards bonnet arrangement, the relief pressure valve cartridge is interior to be provided with the passage for being used for connecting the vent and the contraction section,
The internal diameter of the contraction section is gradually reduced from the one end connected with the relief pressure valve cartridge to the other end, the other end of the contraction section
Connected with the oil-out, the position of the close relief pressure valve cartridge of the contraction section is communicated with the first extraction channel, described
One extraction channel is used to connect with the first control port of overflow valve, position connection of the contraction section away from the relief pressure valve cartridge
There is the second extraction channel, second extraction channel is connected for the second control port with the overflow valve and oil-out.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
After hydraulic control valve group is connected in hydraulic system, when control port does not have oil pressure, due to hydraulic system sheet
Body is with load oil pressure, so the valve element of relief pressure valve cartridge is pushed into the top of entrance by the load oil pressure from oil-out, now
Vent can not be imported with entering oil hole disconnection, the hydraulic oil of oil inlet；Oil pressure rises and is more than load oil at control port
During pressure, relief pressure valve cartridge is moved downward, until vent is with entering the conducting of oil hole beginning so that the hydraulic oil of oil inlet is successively
Relief pressure valve cartridge, entrance and contraction section are imported, and is finally exported by oil-out, is partly led due to entering between oil hole and vent
It is logical, so decompression (effect for realizing pressure-reducing valve) can be played a part of, as the pressure at control port increases, pressure-reducing valve
Core is constantly moved downward so that the aperture entered between oil hole and vent is opened bigger and bigger, because the internal diameter of contraction section is by with subtracting
One end of pressure valve core connection is gradually reduced to the other end, so the pressure at entrance constantly rises, so that relief pressure valve cartridge
Overcome the pressure at control port to move upwards, and then to enter the aperture between oil hole and vent to diminish, it is dynamic to be formed
State balances (effect for realizing pressure compensator)；When pressure at control port further increases, contraction section is away from decompression
The also constantly increase therewith of difference of the oil pressure and contraction section of the position of valve element between the oil pressure of the position of relief pressure valve cartridge so that
Oil inlet and the oil-out conducting of overflow valve, into the section hydraulic oil at control port by contraction section overflow to oil-out,
So as to reduce the oil pressure at control port, the higher limit equivalent to the flow for limiting the output of hydraulic control valve group (is realized
The effect of controllable throttle valve).Because all parts in control valve are all integrated in valve body, so as to solve hydraulic control valve group
The problem of taking a large amount of installing spaces.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the profile of control valve provided in an embodiment of the present invention；
Fig. 2 is the hydraulic schematic diagram of hydraulic control valve group provided in an embodiment of the present invention；
Each symbol represents that implication is as follows in figure：
1- valve bodies, 11- support rims, 12- end caps, 13- valves bottom, 14- support frames, 2- bonnets, 21- control ports, 3- enters
Hydraulic fluid port, 4- oil-outs, 5- Venturi tubes, 51- entrances, 52- contraction sections, 53- enters oil hole, the extraction channels of 54- first, 55-
Second extraction channel, 56- oil feed grooves, 57- contraposition boss, 58- diffusers, 6- relief pressure valve cartridges, 61- vents, 62- passages,
7- overflow valves, 81- first seals, 82- second seals, the seals of 83- the 3rd, the seals of 84- the 4th, 85- the 5th is sealed
Part.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiments of the invention provide a kind of hydraulic control valve group, as shown in figure 1, the hydraulic control valve group includes control valve
With overflow valve 7 (referring to Fig. 2), control valve includes valve body 1 and the bonnet 2 installed in the one end of valve body 1, and valve body is provided with oil inlet 3
With oil-out 4, bonnet 2 is provided with control port 21, and control valve also includes Venturi tube 5 and relief pressure valve cartridge 6, and Venturi tube 5 is consolidated
Surely it is inserted into valve body 1, Venturi tube 5 includes the entrance 51 and contraction section 52 that dorsad bonnet 2 extends successively, entrance 51
One end is tightly connected with bonnet 2 and connected with control port 21, and relief pressure valve cartridge 6 is slidably mounted in entrance 51, decompression
Valve element 6 is provided with vent 61, entrance 51 be provided be used to connecting vent 61 and oil inlet 3 enter oil hole 53, decompression
One end sealing of valve element 6 and arranged towards bonnet 2, being provided with relief pressure valve cartridge 6 is used to connecting the logical of vent 61 and contraction section 52
Road 62, the internal diameter of contraction section 52 is gradually reduced from the one end connected with relief pressure valve cartridge 6 to the other end, the other end of contraction section 52 with
Oil-out 4 is connected, and the position of the close relief pressure valve cartridge 6 of contraction section 52 is communicated with the first extraction channel 54, the first extraction channel 54
Connected (referring to Fig. 2) with the first control port of overflow valve 7, position of the contraction section 52 away from relief pressure valve cartridge 6 is communicated with second and drawn
Go out passage 55, second control port and oil-out of second extraction channel 55 with overflow valve 7 are connected, the oil inlet of overflow valve 7 with
Control port 21 on bonnet 2 is connected.
After hydraulic control valve is connected in hydraulic system, when control port 21 does not have oil pressure, due to hydraulic system sheet
Body is with load oil pressure, so the valve element of relief pressure valve cartridge 6 is pushed into the top of entrance 51 by the load oil pressure from oil-out 4,
Now vent 61 is disconnected with entering oil hole 53, and the hydraulic oil of oil inlet 3 can not be imported；Oil pressure rises simultaneously at control port 21
During more than load oil pressure, relief pressure valve cartridge 6 is moved downward, until vent 61 is with entering the conducting of the beginning of oil hole 53 so that enter
The hydraulic oil of hydraulic fluid port 3 imports relief pressure valve cartridge 6, entrance 51 and contraction section 52 successively, and is finally exported by oil-out 4, due to entering
It is partially ON between oil hole 53 and vent 61, so decompression (effect for realizing pressure-reducing valve) can be played a part of, with
The pressure increase at control port 21, relief pressure valve cartridge 6 is constantly moved downward so that entered between oil hole 53 and vent 61
Aperture is opened bigger and bigger, because the internal diameter of contraction section 52 is gradually reduced from the one end connected with relief pressure valve cartridge 6 to the other end, so entering
Pressure at mouth section 51 constantly rises, so that relief pressure valve cartridge 6 overcomes the pressure at control port 21 to move upwards, and then makes
The aperture that must enter between oil hole 53 and vent 61 diminishes, to form dynamic equilibrium (effect for realizing pressure compensator)；
When pressure at control port 21 further increases, oil pressure and the contraction section 52 of position of the contraction section 52 away from relief pressure valve cartridge 6
Difference also constantly increase therewith between the oil pressure of the position of relief pressure valve cartridge 6 so that the oil inlet and oil-out of overflow valve 7
Conducting, into the section hydraulic oil at control port 21 by the overflow of contraction section 52 to oil-out 4, so as to reduce control port
Oil pressure at 21, the higher limit equivalent to the flow for limiting the output of hydraulic control valve group (realizes the work of controllable throttle valve
With).Because all parts in control valve are all integrated in valve body 1, so that solving hydraulic control valve group takes a large amount of install
The problem of space.
In the present embodiment, control valve and overflow valve can be two independent Hydraulic Elements (having independent valve body),
Now control valve and overflow valve can be connected by hydraulic oil pipe；Control valve and overflow valve can also be integral type structure, that is, control
Valve and overflow valve processed are integrated, so that being not required to the connection of hydraulic oil pipe between control valve and overflow valve.
The oil pressure of position of the contraction section 52 away from relief pressure valve cartridge 6 and contraction section 52 be following is a brief introduction of close to pressure-reducing valve
The principle of the higher limit of the flow of difference limitation hydraulic control valve group output between the oil pressure of the position of core 6：
Assuming that the flow of hydraulic system is Q, the restriction coefficient of Venturi tube 5 is Cd2, the orifice size of Venturi tube 5 is
A, the oil pressure of position of the contraction section 52 away from relief pressure valve cartridge 6 is PA, oil pressure of the contraction section 52 close to the position of valve element is P1, hydraulic pressure
The density of oil is ρ, and below equation can be drawn by throttling theory：
Due to Cd2, A and ρ be definite value, so the oil pressure of position of the contraction section 52 away from relief pressure valve cartridge 6 and contraction section 52
Therefore difference between the oil pressure of the position of relief pressure valve cartridge 6, limits and shrinks as the flow of hydraulic system increases and increases
Difference of the oil pressure and contraction section 52 of 52 positions away from relief pressure valve cartridge 6 of section between the oil pressure of the position of relief pressure valve cartridge 6 was both
The flow rate upper limit value of hydraulic system can be limited, that is, defines the higher limit of the flow of hydraulic control valve group output.
Referring again to Fig. 1, in the present embodiment, enter oil hole 53 for mounting hole, move side of the waist-shaped hole along relief pressure valve cartridge 6
To extension.
Vent 61 can be diameter and enter the identical circular hole of oil hole 53 in above-mentioned implementation, with relief pressure valve cartridge
6 motion, enters oil hole 53 and vent 61 and relative motion occurs therewith, thus change into oil hole 53 and vent 61 it
Between aperture size, due to entering oil hole 53 for mounting hole, what can more be stablized realizes oil-feed.
Specifically, two oil inlets 3 can be provided with valve body 1, entrance 51 and relief pressure valve cartridge 6 are cylinder knot
Can be provided with oil feed groove 56 on structure, the internal perisporium of entrance 51, it is multiple enter oil hole 53 can be around the center of entrance 51
Axle is arranged on the bottom surface of oil feed groove 56, and multiple vents 61 can be arranged around the central shaft of relief pressure valve cartridge 6, each vent
61 are connected by oil feed groove 56 with entering oil hole 53, so that each vent 61 can pass through the He of oil feed groove 56
Enter the realization of oil hole 53 to connect with two oil inlets 3.
In the present embodiment, first seal 81 and second seal 82, first are interval with the outer wall of relief pressure valve cartridge 6
Seal 81 and second seal 82 are folded between relief pressure valve cartridge 6 and entrance 51, vent 61 and to enter oil hole 53 equal
Between first seal 81 and second seal 82.First seal 81 and second seal 82 can be sealing ring, will
First seal 81 and second seal 82 are separately positioned on vent 61 and enter the both sides of oil hole 53, can avoid vent
61 leak with the hydraulic oil entered at oil hole 53 during relief pressure valve cartridge 6 is moved.
In the present embodiment, the inwall of valve body 1 is provided with support rim 11, and the outer wall of Venturi tube 5 is convex provided with aligning
Platform 57, contraposition boss 57 is shelved on support rim 11, so that by the cooperation between support rim 11 and contraposition boss 57, it is real
Support of the valve body 1 to Venturi tube 5 is showed.
In above-mentioned implementation, because control valve is placed vertically, so can be not required between Venturi tube 5 and valve body 1
It is fixedly connected, Venturi tube 5 can be directly rested on support rim 11, so as to coordinate with bonnet 2, by Venturi tube 5
Geometrical clamp is mounted between bonnet 2 and support rim 11.
In the present embodiment, end cap 12 is provided with valve body 1, the one side of end cap 12 blocks provided with groove, bonnet 2 is installed
Mounted in installing in groove, the one side of end cap 12 is fixed on valve body 1.
Specifically, end cap 12 can be bolted on valve body 1, installed groove and matched with bonnet 2, on bonnet 2
The mounting flange plate matched with entrance 51 can be provided with, in assembling, first can be put bonnet 2 by mounting flange plate
Put in entrance 51, then end cap 12 is located on bonnet 2 so that groove is installed and matched with bonnet 2, finally by bolt
End cap 12 is fixed on valve body 1, it is achieved thereby that the installation of end cap 12 and bonnet 2.
Specifically, bonnet 2 is provided with the 3rd seal 83, and the 3rd seal 83 is folded between bonnet 2 and installation groove,
So as to avoid the hydraulic fluid leak of control port 21.
In the present embodiment, the outer wall of entrance 51 is provided with the 4th seal 84 and the 5th seal 85, the 4th sealing
The seal 85 of part 84 and the 5th is folded between valve body 1 and entrance 51, oil inlet 3 and is entered oil hole 53 and is respectively positioned on the 4th sealing
Between the seal 85 of part 84 and the 5th.4th seal 84 and the 5th seal 85 can be sealing ring, by the 4th seal 84
Oil inlet 3 is separately positioned on the 5th seal 85 and enters the both sides of oil hole 53, can be avoided oil inlet 3 and be entered oil hole 53
The hydraulic oil at place is leaked.
In the present embodiment, Venturi tube 5 also includes diffuser, and diffuser 58 is connected with contraction section 52, diffuser 58
Internal diameter is gradually increased from the one end connected with contraction section 52 to the other end.
In above-mentioned implementation, diffuser 58 can reduce the flow velocity of the hydraulic oil ramped up in contraction section 52, subtract
Small turbulivity, controls loss in head.
In the present embodiment, it is additionally provided with valve body 1 on valve bottom 13, valve body 1 and is additionally provided with valve bottom 13, valve bottom 13 is arranged on valve body
1 other end, diffuser 58 is offseted with valve bottom 13, and oil-out 4 is arranged on valve bottom 13, and oil-out 4 is connected with diffuser 58, valve bottom
13 play a part of supporting Venturi tube 5.
Specifically, valve bottom 13 is provided with support frame 14, and diffuser 58 is installed together by support frame 14 with valve bottom 13.
More specifically, support frame 14 can include the first mounting cylinder, the second mounting cylinder and installing plate, the first mounting cylinder and the
Two mounting cylinders are coaxially fixed on the two opposite sides of installing plate respectively, and diffuser 58 is inserted into the first mounting cylinder, and first installs
Collet chuck is located between diffuser 58 and valve body 1, and the position of correspondence oil-out 4 can be provided with positioning convex, convex on valve bottom 13
Rise and be inserted into the second mounting cylinder.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of hydraulic control valve group, the hydraulic control valve group includes control valve and overflow valve, the control valve includes：Valve body
With the bonnet installed in described valve body one end, the valve body is provided with oil inlet and oil-out, and the bonnet is provided with control oil
Mouthful, it is characterised in that the control valve also includes Venturi tube and relief pressure valve cartridge, and the Venturi tube is fixed and is inserted into the valve
In vivo, the Venturi tube includes entrance and contraction section that dorsad the bonnet extends successively, one end of the entrance with
The valve bonnet seal is connected and connected with the control port, and the relief pressure valve cartridge is slidably mounted in the entrance,
The relief pressure valve cartridge is provided with vent, and the entrance is provided with the oil-feed for being used for connecting the vent and the oil inlet
Through hole, one end sealing of the relief pressure valve cartridge and is provided with towards bonnet arrangement, in the relief pressure valve cartridge and is used to connect described
The passage of vent and the contraction section, the internal diameter of the contraction section from one end for being connected with the relief pressure valve cartridge to the other end by
Decrescence small, the other end of the contraction section is connected with the oil-out, the position of the close relief pressure valve cartridge of the contraction section
The first extraction channel is communicated with, first extraction channel is connected with the first control port of the overflow valve, the contraction section
Position away from the relief pressure valve cartridge is communicated with the second extraction channel, the second control of second extraction channel and the overflow valve
Liquefaction mouthful is connected with oil-out, and the oil inlet of the overflow valve is connected with the control port on the bonnet.
2. hydraulic control valve group according to claim 1, it is characterised in that it is described enter oil hole be mounting hole, the waist
Moving direction extension of the type hole along the relief pressure valve cartridge.
3. hydraulic control valve group according to claim 1, it is characterised in that be interval with the outer wall of the relief pressure valve cartridge
First seal and second seal, the first seal and the second seal are folded in the relief pressure valve cartridge and institute
State between entrance, the vent and it is described enter oil hole be respectively positioned on the first seal and the second seal it
Between.
4. hydraulic control valve group according to claim 1, it is characterised in that the inwall of the valve body is convex provided with supporting
Platform, the outer wall of the Venturi tube is provided with contraposition boss, and the contraposition boss is shelved on the support rim.
5. hydraulic control valve group according to claim 1, it is characterised in that end cap, the end are provided with the valve body
The one side of lid is installed in the installation groove provided with groove, the bonnet is installed, and the one side of the end cap is fixed on
On the valve body.
6. hydraulic control valve group according to claim 5, it is characterised in that the bonnet is provided with the 3rd seal, institute
The 3rd seal is stated to be folded between the bonnet and the installation groove.
7. the hydraulic control valve group according to claim any one of 1-6, it is characterised in that set on the outer wall of the entrance
Have the 4th seal and the 5th seal, the 4th seal and the 5th seal be folded in the valve body and it is described enter
Between mouthful section, the oil inlet and it is described enter oil hole be respectively positioned between the 4th seal and the 5th seal.
8. the hydraulic control valve group according to claim any one of 1-6, it is characterised in that the Venturi tube also includes expanding
Section is dissipated, the diffuser connects with the contraction section, the internal diameter of the diffuser is from one end for being connected with the contraction section to another
One end gradually increases.
9. the hydraulic control valve group according to claim any one of 1-6, it is characterised in that be additionally provided with valve on the valve body
Bottom, the valve bottom is arranged on the valve body other end, and the diffuser offsets with the valve bottom, and the oil-out is arranged on described
On valve bottom, the oil-out is connected with the diffuser.
10. a kind of control valve, the control valve includes：Set on valve body and the bonnet installed in described valve body one end, the valve body
Have an oil inlet and oil-out, the bonnet is provided with control port, it is characterised in that the control valve also include Venturi tube and
Relief pressure valve cartridge, the Venturi tube is fixed and is inserted into the valve body, and the Venturi tube includes the dorsad bonnet and prolonged successively
The entrance and contraction section stretched, one end of the entrance are connected with the valve bonnet seal and connected with the control port, institute
State relief pressure valve cartridge to be slidably mounted in the entrance, the relief pressure valve cartridge is provided with vent, the entrance and set
There is an oil hole that enters for connecting the vent and the oil inlet, one end sealing of the relief pressure valve cartridge and towards the valve
Drop cloth is put, and is provided with the passage for being used for connecting the vent and the contraction section in the relief pressure valve cartridge, the contraction section it is interior
Footpath is gradually reduced from the one end connected with the relief pressure valve cartridge to the other end, and the other end of the contraction section connects with the oil-out
Logical, the position of the close relief pressure valve cartridge of the contraction section is communicated with the first extraction channel, and first extraction channel is used for
Connected with the first control port of overflow valve, position of the contraction section away from the relief pressure valve cartridge is communicated with the second extraction and led to
Road, second extraction channel is connected for the second control port with the overflow valve and oil-out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710289731.6A CN107143543B (en) | 2017-04-27 | 2017-04-27 | A kind of hydraulic control valve group and control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710289731.6A CN107143543B (en) | 2017-04-27 | 2017-04-27 | A kind of hydraulic control valve group and control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107143543A true CN107143543A (en) | 2017-09-08 |
| CN107143543B CN107143543B (en) | 2018-11-09 |
Family
ID=59775193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710289731.6A Active CN107143543B (en) | 2017-04-27 | 2017-04-27 | A kind of hydraulic control valve group and control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107143543B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194440A (en) * | 2017-11-14 | 2018-06-22 | 武汉船用机械有限责任公司 | A kind of Hydraulic Adjustable Speed valve and hydraulic system |
| CN108223867A (en) * | 2017-12-27 | 2018-06-29 | 杭州春江阀门有限公司 | A kind of Depressure valve |
| CN109779998A (en) * | 2017-11-14 | 2019-05-21 | 浙江华益精密机械股份有限公司 | Torque distributing valve and wheel walking hydraulic control system |
| CN111577690A (en) * | 2020-04-01 | 2020-08-25 | 武汉船用机械有限责任公司 | Hydraulic control valve group |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1151291B (en) * | 1982-06-07 | 1986-12-17 | Univer Srl | VALVE DEVICE FOR GRADUAL PRESSURE OF PNEUMATIC SYSTEMS |
| US5447174A (en) * | 1993-08-02 | 1995-09-05 | Hydrolux S.A.R.L. | Pilot stage for pressure control valves |
| RU2068139C1 (en) * | 1994-05-31 | 1996-10-20 | Акционерное общество "ЭНТЭК" | Control valve |
| CN103244725A (en) * | 2013-05-25 | 2013-08-14 | 铜陵市三圆特种铸造有限责任公司 | Pressure reduction cavity structure for high-flow balanced pressure regulating valve |
| CN103671321A (en) * | 2013-11-25 | 2014-03-26 | 武汉船用机械有限责任公司 | Hydraulic control valve |
| CN204226668U (en) * | 2014-11-06 | 2015-03-25 | 艾坦姆流体控制技术（北京）有限公司 | Modulating valve |
| CN104595268A (en) * | 2014-12-02 | 2015-05-06 | 武汉船用机械有限责任公司 | Pilot type integrated hydraulic governor control valve |
-
2017
- 2017-04-27 CN CN201710289731.6A patent/CN107143543B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1151291B (en) * | 1982-06-07 | 1986-12-17 | Univer Srl | VALVE DEVICE FOR GRADUAL PRESSURE OF PNEUMATIC SYSTEMS |
| US5447174A (en) * | 1993-08-02 | 1995-09-05 | Hydrolux S.A.R.L. | Pilot stage for pressure control valves |
| RU2068139C1 (en) * | 1994-05-31 | 1996-10-20 | Акционерное общество "ЭНТЭК" | Control valve |
| CN103244725A (en) * | 2013-05-25 | 2013-08-14 | 铜陵市三圆特种铸造有限责任公司 | Pressure reduction cavity structure for high-flow balanced pressure regulating valve |
| CN103671321A (en) * | 2013-11-25 | 2014-03-26 | 武汉船用机械有限责任公司 | Hydraulic control valve |
| CN204226668U (en) * | 2014-11-06 | 2015-03-25 | 艾坦姆流体控制技术（北京）有限公司 | Modulating valve |
| CN104595268A (en) * | 2014-12-02 | 2015-05-06 | 武汉船用机械有限责任公司 | Pilot type integrated hydraulic governor control valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194440A (en) * | 2017-11-14 | 2018-06-22 | 武汉船用机械有限责任公司 | A kind of Hydraulic Adjustable Speed valve and hydraulic system |
| CN109779998A (en) * | 2017-11-14 | 2019-05-21 | 浙江华益精密机械股份有限公司 | Torque distributing valve and wheel walking hydraulic control system |
| CN108194440B (en) * | 2017-11-14 | 2020-03-31 | 武汉船用机械有限责任公司 | Hydraulic speed regulating valve and hydraulic system |
| CN109779998B (en) * | 2017-11-14 | 2023-11-24 | 浙江三尚智迪科技有限公司 | Torque distribution valve and wheel traveling hydraulic control system |
| CN108223867A (en) * | 2017-12-27 | 2018-06-29 | 杭州春江阀门有限公司 | A kind of Depressure valve |
| CN111577690A (en) * | 2020-04-01 | 2020-08-25 | 武汉船用机械有限责任公司 | Hydraulic control valve group |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107143543B (en) | 2018-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107143543A (en) | A kind of hydraulic control valve group and control valve | |
| CN204592270U (en) | A kind of secondary box of gearbox synchronizer protective system with power take-off | |
| CN205859274U (en) | Adjustable dynamic balance valve | |
| CN202812354U (en) | Thread plug-in type pressure-reducing valve | |
| CN201486958U (en) | Combined screw plug | |
| CN115929915A (en) | Novel pneumatic double-station throttle valve | |
| CN206268573U (en) | A kind of valve arrangement with cavitation-preventive cover | |
| CN205446828U (en) | One -way valve | |
| CN109140003B (en) | Miniature pressure regulating valve | |
| CN202560682U (en) | Thin hydraulic cylinder with plug-in type pressure retaining valve | |
| CN208651750U (en) | Butterfly valve with retaining connector | |
| CN208919397U (en) | Direct-insertion three-channel plug valve | |
| CN202768836U (en) | Sealing structure between two junction surfaces in hydraulic device | |
| CN205977892U (en) | Oil pump hydraulic motor assembly | |
| CN108167459A (en) | A kind of voltage stabilizing pin structure for being used to compensate in-flow inserted valve closing direction hydraulic power | |
| CN217872953U (en) | Water seal assembly | |
| CN205064993U (en) | In -line solenoid valve | |
| CN102937121B (en) | Pressure setting valve and engineering device | |
| CN103456585A (en) | Gas exhauster head of automobile lamp | |
| CN206206305U (en) | Gearbox main oil pressure pressure limiting device | |
| CN204878096U (en) | Radially reel shaft is to rotatory hydraulic system | |
| CN203783529U (en) | Integrated tree body structure of underwater Christmas three | |
| CN213776184U (en) | Piston multi-stage throttling hole structure | |
| CN215059109U (en) | Damping adjusting device | |
| CN203223600U (en) | Automatic-control emptying safety valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |