CN107448429A - Flow rate regulating valve and valve tectosome - Google Patents
Flow rate regulating valve and valve tectosome Download PDFInfo
- Publication number
- CN107448429A CN107448429A CN201710368381.2A CN201710368381A CN107448429A CN 107448429 A CN107448429 A CN 107448429A CN 201710368381 A CN201710368381 A CN 201710368381A CN 107448429 A CN107448429 A CN 107448429A
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- China
- Prior art keywords
- stream
- working oil
- pressure
- valve
- connection stream
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/029—Counterbalance valves
-
- 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
- F15B13/023—Excess flow valves, e.g. for locking cylinders in case of hose burst
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2267—Valves or distributors
-
- 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
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
-
- 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
- F15B13/027—Check valves
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/42—Flow control characterised by the type of actuation
- F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
Abstract
The present invention provides flow rate regulating valve and valve tectosome.The flow rate regulating valve is the flow rate regulating valve being integrally formed for the function that can rightly play flow control valve and load holding both check-valves.Flow rate regulating valve possesses：Movable valve body, it changes allocation position according to the pressure of the 1st connection stream and the working oil of the 2nd connection stream；1st cylindrical portion, it changes the aperture area for the 2nd opening portion that working oil can pass through according to the allocation position of movable valve body；Movable sealing, it changes allocation position according to the pressure of the 1st connection stream and the working oil of the 2nd connection stream, is blocked the guiding stream formed in movable valve body according to the allocation position.Pressure in the working oil that the pressure ratio the 2nd of the working oil of the 1st connection stream connects stream is big and in the case that the pressure of the working oil of the 1st connection stream is more than the 1st pressure differential with the difference of the pressure of the 2nd working oil for being connected stream, makes the aperture area diminution of the 2nd opening portion of the 1st cylindrical portion.
Description
Technical field
The present invention relates to flow rate regulating valve and the valve tectosome for possessing flow rate regulating valve.
Background technology
Hydraulic means is that fluid pressure generation device, fluid pressure drive device and hydraulic control device are combined and formed according to purpose
, use is in extensive field from mini-plant to large scale equipment, and suitable for the excavating machinery such as hydraulic crawler excavator, other build
Build machinery.
As the hydraulic control device being controlled to supply of the working oil to fluid pressure drive device, typically pressure control is utilized
Valve, flow control valve and directional control valve processed.Typically, as pressure-control valve, it is known to overflow valve, pressure-reducing valve and unloading
Valve etc., as flow control valve, it is known to choke valve, as directional control valve, is known to check-valves, reversal valve.By by solely
These control valves on the spot set are appropriately combined, and can form can rightly be carried out to supply of the working oil to fluid pressure drive device
The hydraulic control device of control.
Such as patent document 1 disclose it is a kind of to prevent that actuator from working when vibration and actuator is kept into stopping
Hydraulic control device for the purpose of state.The hydraulic control device possesses：Variable jet pump, it is controlled to flow, with into
For the load pressure of actuator pressure is sprayed plus the pump that constant pressure forms；Switching valve, it is to from the variable jet pump
Flow be controlled；Pressure-compensated valve, it is arranged between the switching valve and actuator；Backflow-proof valve, it is arranged at this
Between pressure-compensated valve and actuator.Pressure-compensated valve and backflow-proof valve are provided independently from, and are gushed out from variable jet pump
Pressure oil (working oil) is directed to supply mouth, in the presence of the pressure oil in supply mouth, opens pressure-compensated valve.If pressure
Recuperation valve is opened, then pressure oil via connecting path, backflow-proof valve, bridge-type path, the 1st endless groove and actuator port to actuating
Device supplies.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2004-204923 publications
The content of the invention
Problems to be solved by the invention
As described above in conventional hydraulic control device, the flow control valve that is controlled to the flow of working oil
(with reference to " pressure-compensated valve " of patent document 1), for prevent working oil flow backwards and keep to actuator supply work
The load of the pressure of oil keeps check-valves separately to be set (with reference to " backflow-proof valve " of patent document 1).
It is then desired to the main body in the valve tectosome for forming hydraulic control device ensures to be used to set flow control valve respectively
The space of check-valves is kept with load and forms the stream for making flow control valve and load keep check-valves rightly to associate
Road.
Therefore, the valve tectosome of conventional hydraulic control device main body maximization, it is necessary to valve tectosome main body shape
Into the stream for making flow control valve and load keep check-valves rightly to associate, for the miniaturization of promotion valve tectosome and letter
, may not be preferable from the viewpoint of change.
The present invention be exactly in view of above-mentioned situation and make, and it is an object of the present invention to provide one kind can rightly play flow control
Valve and load processed keep the flow rate regulating valve being integrally formed of the function of both check-valves and possess such flow rate regulating valve
Valve tectosome.
The solution used to solve the problem
The form of the present invention is related to a kind of flow rate regulating valve, and it possesses：Movable valve body, it has guiding stream, should
Guiding stream include with the 1st be connected stream connection the 1st opening portion and with the 2nd be connected stream connect the 2nd opening portion, wherein,
The allocation position of the movable valve body connects the pressure of the working oil of stream according to the pressure of the working oil of the 1st connection stream and the 2nd
Power and change；Aperture area adjusting body, it changes the 2nd that working oil can pass through according to the allocation position of movable valve body and opened
The aperture area of oral area；Movable sealing, its allocation position according to the 1st connection stream working oil pressure and the 2nd connection flow
The pressure of the working oil on road and change, the 1st connection stream working oil pressure ratio the 2nd connect stream working oil pressure
The pressure of big and the 1st connection stream working oil and the 2nd be connected stream working oil pressure difference feelings bigger than the 1st pressure differential
Under condition, the difference compared to the pressure for the working oil that the pressure of the working oil of the 1st connection stream and the 2nd are connected stream is the 1st pressure
Situation below difference, aperture area adjusting body enable the aperture area for the 2nd opening portion that working oil passes through to reduce, can dynamic sealing
The pressure configuration for the working oil that portion can connect stream according to the pressure of the working oil of the 1st connection stream and the 2nd flows in by guiding
The disconnected position of roadlock, and the position that will not guide stream to block can be configured at.
Can also be that aperture area adjusting body is made up of the 1st cylindrical portion, movable valve body, which has, is configured at the 1st cylindrical portion
Inner side the 2nd cylindrical portion, in the 2nd cylindrical portion formed with the 2nd opening portion, the 1st cylindrical portion is according to the configuration bit of movable valve body
Put and change the scope of the 2nd opening portion of covering, change the aperture area for the 2nd opening portion that working oil can pass through.
Can also be that flow rate regulating valve is also equipped with elastic force assigning unit, the elastic force assigning unit to by being connected stream from the 1st
The relative direction in direction of the working oil power that puts on movable valve body assign elastic force to movable valve body.
Can also be that movable valve body determines allocation position based on such as exerting oneself：From the working oil of the 1st connection stream to the
The power that 1 direction applies；From from the working oil that the 1st connection flow road direction the 2nd connection stream flows into 2nd side relative with the 1st direction
To the power of application；The power applied by elastic force assigning unit.
Can also be, in the big feelings of the pressure for the working oil that the pressure ratio the 1st of the working oil of the 2nd connection stream connects stream
Under condition, movable seal portion configurations are in the 1st position that abuts of opening forming portion with forming the 1st opening portion, the 1st opening portion of blocking,
In the case where the pressure for the working oil that the pressure ratio the 1st of the working oil of the 2nd connection stream connects stream is small, movable sealing is matched somebody with somebody
It is placed in the position opened with the 1st port forming portion.
Can also be that valve element resettlement section is provided with movable valve body, the valve element resettlement section is by bigger than movable sealing
Space formed, can movably be configured for movable sealing, guiding stream includes the 1st opening portion, valve element resettlement section and the 2nd and opened
Oral area, movable sealing have spherical shape, and the 1st opening portion has the diameter circular cross-section smaller than the diameter of movable sealing.
Another form of the present invention is related to valve tectosome, and it possesses：Main part, it has the 1st connection stream and the 2nd connection
Stream；Above-mentioned flow rate regulating valve.
Can also be that main part has and the 1st insertion hole portions for being connected stream and the 2nd connection fluid communication, flow adjustment
Valve is configured at insertion hole portions.
Can also be that flow rate regulating valve can dismount relative to insertion hole portions.
Can also be, insertion hole portions have：1st insertion section, it is configured between the 1st connection stream and the 2nd connection stream；
2nd insertion section, it is connected fluid communication with the 2nd, and the top ends of movable valve body, which are retreated, is freely configured at 1st insertion section, main
Sealed between the part of formation 1st insertion section in body portion and the top ends of movable valve body.
Can also be that the part between 1st insertion section and 2nd insertion section in insertion hole portions is by the one of the 2nd connection stream
Part is formed.
Can also be that the 1st connection stream connects with hydraulic power source, the 2nd connection stream connects with actuator.
The effect of invention
According to the present invention, the aperture area of the 2nd opening portion possessed by movable valve body by aperture area adjusting body according to
The pressure of the working oil of the pressure of the working oil of 1st connection stream and the 2nd connection stream is adjusted.In addition, guiding stream
The presence or absence of blocking is connected the pressure of the working oil of stream by movable sealing according to the pressure of the working oil of the 1st connection stream and the 2nd
Power is adjusted.In such manner, it is possible to providing a kind of flow control valve and load of can rightly playing keeps both check-valves
The flow rate regulating valve being integrally formed of function and the valve tectosome for possessing such flow rate regulating valve.
Brief description of the drawings
Fig. 1 is the sectional view of the flow rate regulating valve of one embodiment of the present invention.
Fig. 2 is the loop diagram for the function of roughly representing the flow rate regulating valve shown in Fig. 1.
Fig. 3 is the figure for illustrating the function as flow control unit of flow rate regulating valve.
Fig. 4 is the figure for illustrating the function as flow control unit of flow rate regulating valve.
Fig. 5 is the figure for illustrating the function as flow control unit of flow rate regulating valve.
Fig. 6 is that the pressure differential (X-axis) for representing the working oil between the 1st connection stream and the 2nd connection stream adjusts with flow
The figure of relation example between the flow (Y-axis) of valve (guiding stream).
Fig. 7 is the sectional view of an example of the valve tectosome for representing to possess flow rate regulating valve.
Description of reference numerals
10th, flow rate regulating valve；12nd, movable valve body；13rd, O-ring seals；14th, movable sealing；15th, elastic force assigning unit；
16th, spring base；16a, spring base through hole；17th, connector；18th, stream is guided；19th, elastomer resettlement section；21st, the 1st opening portion；
22nd, the 2nd opening portion；24th, valve element resettlement section；25th, restriction；26th, top ends；27th, plug base；28th, the 1st cylindrical portion；29th,
2 cylindrical portions；30th, flow control unit, 31, load keep non-return valve portion；41st, the 1st connection stream；42nd, the 2nd connection stream；51st, it is main
Body portion；53rd, insertion hole portions；54th, 1st insertion section；55th, 2nd insertion section；60th, valve tectosome；61st, electromagnetic proportional valve；62nd, tank leads to
Road；63rd, valve element；64th, valve element accepting hole；65th, overflow valve；66th, actuator path；67th, actuator；68th, balancing gate pit；69th, hydraulic pressure
Source；D1, the 1st direction；D2, the 2nd direction.
Embodiment
Hereinafter, one embodiment of the present invention is illustrated referring to the drawings.In addition, for the convenient appearance for illustrating and understanding
Yi Xing, in the accompanying drawing appended by this part specification, including size by contraction scale and in length and breadth than etc. relative to material object contracting
Small scale and the appropriate change of size ratio in length and breadth and the position exaggerated, but as long as being those skilled in the art, can be based on saying
Bright book, claims, the narration content of summary and accompanying drawing are clearly understood that present disclosure.
Fig. 1 is the sectional view of the flow rate regulating valve 10 of one embodiment of the present invention.Shown in Fig. 1 as then narration
Movable sealing 14 is moved and abutted with restriction 25, the state that the 1st opening portion 21 is plugged by movable sealing 14.
Flow rate regulating valve 10 possesses movable valve body 12, movable sealing 14 and connector 17.
Movable valve body 12 has the shape of tubular on the whole, has the negotiable guiding stream 18 of working oil.Movable
The center section of valve body 12 is provided with the restriction 25 for making stream throttle and making flow path area partly reduce.By " by saving
The stream that stream portion 25 is formed " and " it is arranged at the position by tip side (the 1st then described connects stream 41 side) than restriction 25
The stream put " forms the 1st opening portion 21, part hair of the restriction 25 as the 1st opening forming portion for forming the 1st opening portion 21
Wave function.(then chatted than part of the restriction 25 by the position of the side of connector 17 in being arranged at for main part of movable valve body 12
The 2nd cylindrical portion 29 stated) formed with the 2nd opening portion 22, the main part (the 2nd cylindrical portion 29) of movable valve body 12 is as forming the
2nd opening forming portion of 2 opening portions 22 plays function.Between the 1st opening portion 21 and the 2nd opening portion 22 in movable valve body 12
Space (the valve element resettlement section 24 then described) formed guiding stream 18 intermediate flow passage.
In this way, the guiding stream 18 of working oil includes：1st opening portion 21, its with valve tectosome (in present embodiment,
Reversal valve) main part 51 formed the 1st connection stream 41 connect；2nd opening portion 22, its with formed in main part 51
2 connection streams 42 connect；And intermediate flow passage (valve element resettlement section 24).The working oil come from the 1st connection conveying of stream 41 can
Flowed into via guiding stream 18 to the 2nd connection stream 42.In addition, the 1st connection stream 41 and the hydraulic power source (figure that reference then describes
7 reference " 69 ") connection, the 2nd connection stream 42 and actuator (with reference to the Fig. 7 then described reference " 67 ") are even
It is logical.
(being in the 2nd cylindrical portion 29 in present embodiment) is provided with by than movable sealing 14 in movable valve body 12
The valve element resettlement section 24 that big space is formed, is movably configured with movable sealing 14 in the valve element resettlement section 24.Valve element
Resettlement section 24 is divided and formed by restriction 25, the 2nd cylindrical portion 29 and spring base 16, and the 2nd cylindrical portion 29 is played to movable sealing
What the movement that the effect that 14 movement guides, restriction 25 and spring base 16 form to movable sealing 14 was limited falls
Portions.In addition, the internal diameter of the 2nd cylindrical portion 29 is bigger than the diameter of movable sealing 14, working oil can the 2nd cylindrical portion 29 with can
Flowed between dynamic sealing portion 14.In addition, in the example in the figures, it is configured without between movable sealing 14 and spring base 16 pair
The component that the motion towards spring base 16 of movable sealing 14 is limited, but the arbitrary limiting member such as spring (such as bullet
Property component) can also be arranged in valve element resettlement section 24 between spring base 16 and movable sealing 14.
Movable valve body 12 connects the working oil of stream 42 according to the pressure of the working oil of the 1st connection stream 41 and the 2nd
Pressure slides movement, and the allocation position in main part 51 changes.I.e. the main part 51 of valve tectosome has is connected stream with the 1st
41 insertion hole portions 53 connected with the 2nd connection stream 42, flow rate regulating valve 10 are removably configured at insertion hole portions 53.Flow is adjusted
The slidable movement of movable valve body 12 of whole valve 10 it is configured in the insertion hole portions 53 set in main part 51, can be to from the
1 connection stream 41 connects stream towards the direction (the 1st direction D1) of the 2nd connection stream 42 and from the 2nd connection stream 42 towards the 1st
41 direction (the 2nd direction D2) is mobile.
Insertion hole portions 53 have be configured at the 1st connection stream 41 and the 2nd connect it is between stream 42, with the 1st be connected stream
41 and the 2nd connection stream 42 connect 1st insertion section 54 and with the 2nd be connected stream 42 connect 2nd insertion section 55.Movable valve
The top ends 26 of main body 12 are retreated and are freely configured at 1st insertion section 54, the part of the formation 1st insertion section 54 in main part 51
Sealed between the top ends 26 of movable valve body 12.Being arranged at for peripheral part of i.e. movable valve body 12 is leaned on than restriction 25
The slidable very small gap of movable valve body 12, working oil are provided between the part of the position of tip side and main part 51
Not movable valve body 12 peripheral part be arranged at than restriction 25 by tip side position part and main part 51 between
Flowing.On the other hand, a part for the 2nd cylindrical portion 29 of movable valve body 12, which is retreated, is freely configured at 2nd insertion section 55.
In example illustrated, 1st insertion section 54 and 2nd insertion section 55 are connected stream 42 with the 2nd respectively and connected, and in insertion hole portions 53
Part between 1 insertion section 54 and 2nd insertion section 55 is formed by a part for the 2nd connection stream 42, by 1st insertion section the 54, the 2nd
The part that insertion section 55 and the 2nd connects stream 42 constitutes insertion hole portions 53.The pluggable 1st insertion section of movable valve body 12
54 top ends 26 are by a part for restriction 25 and the position being arranged at than restriction 25 by tip side of movable valve body 12
Part form.
Restriction 25 has being arranged at than restriction 25 by the straight of the part of the position of tip side than movable valve body 12
The big external diameter in footpath, including the tapered protuberance of stream 41 is connected towards the 1st, the protuberance is relative to the outer of movable valve body 12
Being arranged at for week protrudes than part of the restriction 25 by the position of tip side.The protuberance of the restriction 25 is used as to movable valve master
The stop part limited to the movement of the 1st connection side of stream 41 (the 2nd direction D2) of body 12 plays function, in restriction 25
Protuberance is abutted with main part 51 in the case of taking a seat, and movable valve body 12 is configured at closest to the position of the 1st connection stream 41
Put.In addition, being abutted by the protuberance of restriction 25 with main part 51 to take a seat, movable valve body 12 can be reliably blocked
The flowing of working oil between peripheral part and main part 51.
Connector 17 has the cylindrical portion 28 of plug base 27 and the 1st being integrally formed, and the 1st cylindrical portion 28 has cylinder on the whole
The shape of shape.In the periphery of the 1st cylindrical portion 28 formed with external screw thread, pass through the external screw thread and the 2nd insertion section in main part 51
The internal thread that 55 inner circumferential is formed is screwed, and connector 17 is fixed on main part 51.In addition, by the external screw thread and internal thread structure
Into screw thread connection unit and plug base 27 between be configured with O-ring seals 13, it is close by the O shapes between connector 17 and main part 51
Seal 13 is sealed and the circulation of working oil is blocked.In the present embodiment, the 1st cylindrical portion 28 is as " according to movable valve body
12 allocation position changes the aperture area adjusting body of the aperture area for the 2nd opening portion 22 that working oil can pass through " play a role.
I.e., movable valve body 12 is configured to nested shape with connector 17, and the 2nd cylindrical portion 29 possessed by movable valve body 12 is matched somebody with somebody
It is placed in the inner side of the 1st cylindrical portion 28 on the top for forming connector 17.In the 2nd cylindrical portion 29 formed with the 2nd opening portion 22, movable
When valve body 12 relatively moves relative to connector 17 (particularly the 1st cylindrical portion 28), the outer peripheral face of the 2nd cylindrical portion 29 is the
Slided on the inner peripheral surface of 1 cylindrical portion 28.Thus, the 1st cylindrical portion 28 of connector 17 changes according to the allocation position of movable valve body 12
Become the scope of the 2nd opening portion 22 of covering, change the aperture area for the 2nd opening portion 22 that working oil can pass through.In such as movable valve
Main body 12 be configured near the 1st connection stream 41 position in the case of, the 1st cylindrical portion 28 does not cover the 2nd opening portion 22.Separately
On the one hand, in the case where movable valve body 12 is configured at away from the farthest position of the 1st connection stream 41, the 1st cylindrical portion 28 is complete
Ground covers and blocks the 2nd opening portion 22.
It is provided with the elastomer resettlement section 19 for the inner side for being formed at the cylindrical portion 28 of plug base 27 and the 1st：Spring base 16；
Elastic force assigning unit 15, it is configured at the side opposite with the 2nd cylindrical portion 29 of movable valve body 12 across spring base 16.Elastic force is assigned
Give portion 15 to be configured at the elastomer receipts for being divided and being formed by spring base 16, the 1st cylindrical portion 28 and plug base 27 elastic telescopic
In appearance portion 19.The elastic force assigning unit 15 of present embodiment is configured to spring, and end side is configured at the interior of the 1st cylindrical portion 28
Side, the other end side are coated by plug base 27.In addition, the O shapes for being arranged at the local ambient of the 1st cylindrical portion 28 of connector 17 are close
Seal 13 is pressed into close with main part 51 in the insertion hole portions 53 (2nd insertion section 55) in the formation of main part 51 of valve tectosome
Close, working oil is not spilt between connector 17 and main part 51.Connector 17 is fixedly arranged at main part 51 in the manner described above, because
This, the position of spring base 16 and the shift in position of movable valve body 12 are made according to the expanding-contracting action of elastic force assigning unit 15.
Elastic force assigning unit 15 is compressed in connector 17 (particularly plug base 27) between spring base 16, spring base 16 from
The stress of elastic force assigning unit 15 and exerted a force, abutted with the top of the 2nd cylindrical portion 29.Thus, elastic force assigning unit 15 is across spring base
16 is relative to the direction (the 1st direction D1) with the power by putting on movable valve body 12 from the 1st working oil for being connected stream 41
Direction (the 2nd direction D2) to movable valve body 12 assign elastic force, play following effect：According to movable valve body 12 from the 1st
The power that is subject to of working oil in connection stream 41 determines the position of movable valve body 12 (particularly the 2nd opening portion 22).
Dynamic valve body 12 determines allocation position based on such as exerting oneself：From the working oil of the 1st connection stream 41 to " as movable valve body 12
Slidable movement direction in a direction the 1st direction D1 " apply power；By connecting stream 41 via restriction from the 1st
25 to the working oil that the 2nd connection stream 42 flows into " the power that the 2nd direction D2 " relative with the 1st direction D1 applies；Assigned by elastic force
The power for giving portion 15 to apply.
Movable sealing 14 is arranged to mainly to move towards identical direction to the 1st opening portion 21, shown in Fig. 1
Example in, to the 1st direction D1 and 2nd direction D2 freedom of movement consistent with the slidable movement direction of movable valve body 12
It is configured in valve element resettlement section 24.
Movable sealing 14 has spherical shape, and has diameter closeer than movable in the 1st opening portion 21 that restriction 25 is formed
The small circular cross-section of the diameter in envelope portion 14.Therefore, if movable sealing 14 abuts with restriction 25, movable sealing 14 and section
The edge in stream portion 25 is closely sealed and blocks the 1st opening portion 21, and guiding stream 18 is blocked by movable sealing 14, and working oil can not be can
Flowed between dynamic sealing portion 14 and restriction 25.
Pressure and 2nd connection of the allocation position of such movable sealing 14 according to the working oil of the 1st connection stream 41
The pressure of the working oil of stream 42 and change.The spherical movable sealing 14 for being configured at valve element resettlement section 24 is connected from the 1st
Connect stream 41 and/or the 2nd and connect the working oil applying power that stream 42 flows into valve element resettlement section 24, the flowing with working oil is presented
Corresponding characteristic and configuration.
In the work that the pressure ratio of the working oil for example flowed in the 1st connection stream 41 flows in the 2nd connection stream 42
Making the big situation of the pressure of oil, (pressure ratio the 1st of the working oil of the i.e. the 2nd connection stream 42 connects the pressure of the working oil of stream 41
Small situation) under, working oil flows into from the 1st connection stream 41 via the 1st opening portion 21 to valve element resettlement section 24, is housed from valve element
Flowed out via the 2nd opening portion 22 to the 2nd connection stream 42 in portion 24.In this case, by the working oil from the 1st connection stream 41
It is bigger than the power applied by the working oil from the 2nd connection stream 42 to movable sealing 14 to the power that movable sealing 14 applies.
Therefore, movable sealing 14 under the influence of the working oil flowed into via the 1st opening portion 21 to valve element resettlement section 24 from working oil
Stress and it is mobile to the direction (the 1st direction D1) away from restriction 25, be configured at the position separated with restriction 25.Thus, exist
Movable valve body 12 is formed with the guiding stream 18 for connecting the 1st connection stream 41 with the 2nd connection stream 42, it is ensured that working oil from
Stream of the 1st connection stream 41 to the 2nd connection stream 42.
On the other hand, flowed in the pressure ratio of the working oil flowed in the 2nd connection stream 42 in the 1st connection stream 41
The big situation of pressure of working oil (pressure ratio the 2nd of the working oil of the i.e. the 1st connection stream 41 connects the working oil of stream 42
The small situation of pressure) under, working oil flows into from the 2nd connection stream 42 via the 2nd opening portion 22 to valve element resettlement section 24, by can
Between the cylindrical portion 29 of dynamic sealing portion 14 and the 2nd, also to the Space sprawls that the side of spring base 16 is leaned on than movable sealing 14.In the situation
Under, the working oil from the 2nd connection stream 42 is to the power that movable sealing 14 applies than by the work from the 1st connection stream 41
The power that oil applies to movable sealing 14 is big.Therefore, movable sealing 14 is from the 2nd opening portion 22 towards the 1st opening portion 21
From working oil stress and to close to the movement of the direction (the 2nd direction D2) of restriction 25 under the influence of working oil, it is configured at and throttles
The position that portion 25 abuts.Thus, movable sealing 14 will be guided being blocked in the 1st opening portion 21 that restriction 25 is formed
Stream 18 blocks and the 1st connection stream 41 and the 2nd is connected stream 42 and be in non-interconnected state.
Fig. 2 is the loop diagram for the function of roughly representing the flow rate regulating valve 10 shown in Fig. 1.In addition, the loop shown in Fig. 2
Figure may not fully represent the function of the flow rate regulating valve 10 shown in Fig. 1, be to understanding that the function of flow rate regulating valve 10 is useful
Figure.
The flow rate regulating valve 10 of present embodiment has as the function of flow control unit 30 and kept as load simultaneously
The function of non-return valve portion 31.I.e. flow rate regulating valve 10 connects stream 41 to the stream of the 2nd connection stream 42 as to working oil from the 1st
Measuring the performance function of flow control unit 30 being controlled and being used as prevents working oil from the 2nd connection stream 42 to the 1st connection stream
41 loads flowed into keep non-return valve portion 31 to play function.
If as described above to the 1st direction D1 put on flow rate regulating valve 10 advocate by from the 1st connection stream
The power that 41 working oil is brought (especially by the working oil before restriction 25).On the other hand, to relative with the 1st direction D1
If the 2nd direction D2 put on the advocating by flowing out from the 1st connection stream 41 and having passed through restriction 25 of flow rate regulating valve 10
Power that working oil (working oil flowed into the 2nd connection stream 42) afterwards applies and the power that is applied by elastic force assigning unit 15
With joint efforts.Thus, according to " by the power to the 1st direction D1 of the working oil from the 1st connection stream 41 before restriction 25 "
With " passed through power from the 1st working oil for being connected stream 41 after restriction 25 and elastic force assigning unit 15 to the 2nd direction
D2 power make a concerted effort " between relation, flow rate regulating valve 10 determine guiding stream 18 state.
Such as " working oil from the 1st connection stream 41 comes to movable sealing 14 to the 1st direction D1 power ratios applied
The power that the working oil of 2nd connection stream 42 applies to movable sealing 14 to the 2nd direction D2 is big " and " before restriction 25
The working oil from the 1st connection stream 41 the power to the 1st direction D1 " than " having passed through connecting from the 1st after restriction 25
Connect making a concerted effort for the power of the working oil of stream 41 and the power to the 2nd direction D2 of elastic force assigning unit 15 " it is small in the case of, flow adjustment
Valve 10 allow working oil from the 1st connection stream 41 towards the 2nd connection stream 42 flowing (reference " 30 " of reference picture 2
Lower lateral mass).On the other hand, " the power that the working oil from the 1st connection stream 41 applies to movable sealing 14 to the 1st direction D1
It is bigger than the power that the working oil from the 2nd connection stream 42 applies to movable sealing 14 to the 2nd direction D2 " and " pass through restriction
The power to the 1st direction D1 of the working oil from the 1st connection stream 41 before 25 " than " passed through after restriction 25 come
From making a concerted effort for the power to the 2nd direction D2 of the power of the working oil of the 1st connection stream 41 and elastic force assigning unit 15 " it is big in the case of,
Flow rate regulating valve 10 limited guiding stream 18 (final block) and to the 1st connection stream 41 with the 2nd be connected stream 42 it
Between the flowing of working oil limited (upper block of the reference " 30 " of reference picture 2).
In addition, movable sealing 14 is come to the power ratio that the 1st direction D1 applies in the working oil from the 1st connection stream 41
In the case that the power from movable sealing 14 to the 2nd direction D2 that applies to of working oil of the 2nd connection stream 42 is small, it is as described above that
Sample guiding stream 18 is blocked (reference " 31 " of reference picture 2) by movable sealing 14, and working oil does not connect stream 41 the 1st
It is connected between stream 42 and flows with the 2nd.
Flow rate regulating valve 10 according to such Fig. 1, serve not only as load and keep the function of non-return valve portion 31, Er Qiezuo
It can also be realized for the function of flow control unit 30 by single valve element.
In addition, " work from the 1st connection stream 41 after restriction 25 is passed through in above-mentioned Fig. 2 explanation
Oil " connects the working oil that stream 42 flows into successively equivalent to the valve element resettlement section 24 shown in Fig. 1, the 2nd opening portion the 22 and the 2nd,
Its pressure dependence is between the working oil flowed in the 1st connection stream 41 and the working oil flowed in the 2nd connection stream 42
Pressure difference.Thus, the allocation position of movable valve body 12 is according to the pressure and the 2nd connection flow of the working oil of the 1st connection stream 41
The pressure of the working oil on road 42 and change.
Fig. 3~Fig. 5 is for the figure illustrated as the function of flow control unit 30 to flow rate regulating valve 10, is represented
The pressure ratio the 2nd of the working oil of 1st connection stream 41 connects the big state of pressure of the working oil of stream 42.Fig. 3 represents that the 1st connects
Connect the smaller situations of pressure differential Δ P1 between the working oil of stream 41 and the working oil of the 2nd connection stream 42, Fig. 4 represents the
The pressure differential of situations of the pressure differential Δ P2 than Fig. 3 between the working oil of the working oil of 1 connection stream 41 and the 2nd connection stream 42
Situation big Δ P1.Fig. 5 is to represent that the 1st connection stream 41 and the 2nd connects the figure for the state being blocked between stream 42.
Fig. 6 is to represent that the 1st connection stream 41 and the 2nd connects pressure differential (X-axis) same flow of the working oil between stream 42
Adjust the figure of the relation example between the flow (Y-axis) of valve 10 (guiding stream 18).
In the state of the pressure for the working oil that the pressure ratio the 2nd of the working oil of the 1st connection stream 41 connects stream 42 is big,
And it is being " to have passed through section " by the power to the 1st direction D1 of the working oil from the 1st connection stream 41 before restriction 25 "
The power and bullet of the working oil (working oil flowed into the 2nd connection stream 42) from the 1st connection stream 41 after stream portion 25
The power to the 2nd direction D2 of power assigning unit 15 is made a concerted effort " below in the case of, as shown in figure 3, movable sealing 14 and restriction
25 separate and are configured at the position abutted with spring base 16, and the protuberance of restriction 25 abuts and movable valve master with main part 51
Body 12 is configured at closest to the position of the 1st connection stream 41.In this case, the of function is played as aperture area adjusting body
1 cylindrical portion 28 is configured at the position for not covering the 2nd opening portion 22, guides flow path area (particularly the 2nd opening portion 22 of stream 18
Flow path area) it is maximum.
Typically, represented with " C " in discharge coefficient (Coefficient of discharge), the section of throttle orifice (stream)
Product is represented with " A ", the pressure difference of the front and rear working oil of throttle orifice with " in the case that Δ P " is represented, the stream that is flowed in throttle orifice
Measure (flow velocity) " Q " byRepresent.During the state shown in Fig. 3, the sectional area of stream 18 is guided
(the particularly sectional area of the 2nd opening portion 22) is constant, therefore, as the working oil of the 1st connection stream 41 is connected stream 42 with the 2nd
Working oil between pressure difference become big, the flow of the working oil flowed into from the 1st connection stream 41 to the 2nd connection stream 42 is proportional
Ground increase (reference picture 6 with " scope shown in Δ P1 ").
On the other hand, the pressure for the working oil for connecting stream 42 in the pressure ratio the 2nd of the working oil of the 1st connection stream 41 is big
In the state of, and in " by the power to the 1st direction D1 of the working oil from the 1st connection stream 41 before restriction 25 " ratio
" working oil (working oil flowed into the 2nd connection stream 42) from the 1st connection stream 41 after restriction 25 is passed through
With elastic force assigning unit 15 making a concerted effort to the 2nd direction D2 " it is big in the case of, as shown in figure 4, movable sealing 14 is configured at and bullet
Spring abutment 16 abut position, and the protuberance of restriction 25 and main part 51 separate and movably valve body 12 to the 1st connection flow
The separated direction in road 41 (the 1st direction D1) is mobile.With the movement to the 1st direction D1 of movable valve body 12, in the 2nd cylindrical portion
29 the 2nd opening portions 22 formed are gradually covered by the 1st cylindrical portion 28 (aperture area adjusting body), guide the flow path area of stream 18
(the particularly flow path area of the 2nd opening portion 22) gradually decreases.Therefore, flowed into from the 1st connection stream 41 to the 2nd connection stream 42
Working oil flow increment rate it is gradually slow (reference picture 6 with " scope shown in Δ P2 ").
In this case, movable valve body 12 is configured at " (comes to movable valve body 12 to the 1st direction D1 power applied
1st connection stream 41 working oil power) " with " power applied to movable valve body 12 to the 2nd direction D2 is (come since the 1st is connected
The power for the working oil that stream 41 flows into via valve element resettlement section 24 to the 2nd connection stream 42 and the power from elastic force assigning unit 15) "
The position of balance.If also, movable valve body 12 to the 1st be connected the direction (the 1st direction D1) that stream 41 separates move and
(reference picture 5) is completely covered by the 1st cylindrical portion 28 (aperture area adjusting body) in the 2nd opening portion 22 that 2nd cylindrical portion 29 is formed, then
Guiding stream 18 is blocked by the 1st cylindrical portion 28 (aperture area adjusting body), is flowed from the 1st connection stream 41 to the 2nd connection stream 42
The flow of the working oil entered turns into zero (0).
In this way, the pressure in the working oil that connects stream 42 of pressure ratio the 2nd of the working oil of the 1st connection stream 41 is big and the
The pressure of the working oil of 1 connection stream 41 and the 2nd be connected stream 42 working oil pressure the difference situation bigger than the 1st pressure differential
Under, the difference compared to the pressure for the working oil that the pressure of the working oil of the 1st connection stream 41 and the 2nd are connected stream 42 is the 1st pressure
Situation below power difference, the 1st cylindrical portion 28 (aperture area adjusting body) make the opening surface for the 2nd opening portion 22 that working oil can pass through
Product reduces.Therefore, with the pressure difference between the working oil of the 1st connection stream 41 and the working oil of the 2nd connection stream 42 become it is big and
" by before restriction 25 the 1st connection stream 41 working oil the power to the 1st direction D1 " than " and passed through restriction 25 it
Afterwards from the 1st connection stream 41 working oil and elastic force assigning unit 15 to the 2nd direction D2 make a concerted effort " greatly, flow rate regulating valve
Flow in 10 (guiding streams 18) also increases, the Magnification of the flow gradually reduce (reference picture 6 with " Δ P1 "~" Δ P2 "
Shown scope).In addition, the flow set maximum Rmax in the flow rate regulating valve 10 (guiding stream 18) of present embodiment.
Thus, the flow rate regulating valve 10 of present embodiment rightly can be applied to require that the flow set of working oil is maximum
Value Rmax valve tectosome.
In addition, as described above " by the working oil from the 1st connection stream 41 before restriction 25 to the
1 direction D1 power " is " to have passed through the working oil and elastic force assigning unit 15 from the 1st connection stream 41 after restriction 25
To the 2nd direction D2 make a concerted effort " below in the case of, movable valve body 12 is motionless.Movable valve is represented in above-mentioned " the 1st pressure differential "
The pressure of the working oil of the 1st connection stream 41 in the state of main body 12 is motionless and the pressure of the 2nd working oil for being connected stream 42
Difference higher limit in the case of, should " the 1st pressure differential " determined based on the power to the 2nd direction D2 of elastic force assigning unit 15.I.e.,
The power ratio relatively applied to the 1st direction D1 to movable valve body 12 based on above-mentioned " the 1st pressure differential " is by elastic force assigning unit 15
It is big to the size of the 2nd direction D2 power applied to movable valve body 12.In addition, movable valve body 12 is applied by elastic force assigning unit 15
The power added determines that therefore, above-mentioned " the 1st pressure differential " is based on elastic force assigning unit 15 based on the modulus of elasticity of elastic force assigning unit 15
Modulus of elasticity determine.In addition, after being completely covered in the 2nd opening portion 22 by the 1st cylindrical portion 28, the 2nd opening portion 22 is opened
Open area does not change.Therefore, above-mentioned " the 1st pressure differential " is set to fully is covered than the 2nd opening portion 22 by the 1st cylindrical portion 28
When " pressure of the working oil of the 1st connection stream 41 and the 2nd be connected stream 42 working oil pressure difference " small value.
On the other hand, movable sealing 14 connects stream 42 according to the pressure and the 2nd of the working oil of the 1st connection stream 41
The pressure of working oil is configured in the position for blocking guiding stream 18 and is configured in the position that will not guide stream 18 to block
Put.The movable sealing 14 of the diagram of this example connects the work of stream 41 in the pressure ratio the 1st of the working oil of the 2nd connection stream 42
The position that stream 18 will be guided to block is configured in the case that oily pressure is big, in the pressure of the working oil of the 2nd connection stream 42
The position that will not guide stream 18 to block is configured in the case of smaller than the pressure of the working oil of the 1st connection stream 41.In addition,
, can dynamic sealing in the case that the pressure of the working oil of 2nd connection stream 42 is equal with the pressure of the working oil of the 1st connection stream 41
Portion 14 does not move and stopped.
Then, an example of the valve tectosome of applicable above-mentioned flow rate regulating valve 10 is illustrated.Such valve
Tectosome is not particularly limited, such as in possessing the reversal valve of guiding valve, can rightly use above-mentioned flow rate regulating valve
10。
Fig. 7 is the sectional view of an example of the valve tectosome 60 for representing to possess flow rate regulating valve 10.
Valve tectosome 60 shown in Fig. 7 is configured to what supply of the working oil from hydraulic power source 69 to actuator 67 was controlled
Reversal valve.The valve tectosome 60 possesses the main part 51 formed with the valve element accepting hole 64 configured for valve element 63.In the shape of valve element 63
Into there are multiple notch parts, the shoulder with the diameter roughly the same with the diameter of valve element accepting hole 64 is provided between notch part
Face.1st connection stream 41 is connected by the 2nd connection stream 42 with valve element accepting hole 64, in addition, actuator 67 leads to by actuator
Road 66 is connected with valve element accepting hole 64.
The valve tectosome 60 of this example supplies working oil from hydraulic power source 69 to two the 1st connection streams 41, in valve tectosome 60
Main part 51 in, each 1st connection stream 41 is connected stream 42 with the 2nd and connected.
Electromagnetic proportional valve 61, overflow valve 65 and balancing gate pit 68, and shape are additionally provided with the main part 51 of valve tectosome 60
Into there is tank path 62.Balancing gate pit 68 is provided with two, is configured for the both ends of valve element 63.Electromagnetic proportional valve 61 with balancing gate pit 68
Corresponding mode is provided with two, the supply and discharge of oily (pressure oil) relative to balancing gate pit 68 is controlled, to valve element 63
Movement and configuration in valve element accepting hole 64 are controlled.Be provided with two overflow valves 65, respectively with actuator path 66 and
Tank path 62 connects.In the case where the working oil of actuator path 66 is in more than predetermined pressure, each overflow valve 65 will activate
Device path 66 connects with tank path 62, working oil is discharged from actuator path 66 to tank path 62, the work of actuator path 66
Making the pressure of oil reduces.
The supply to actuator 67 of the working oil supplied from the 1st connection stream 41 to the 2nd connection stream 42 is by valve element 63
Allocation position control in valve element accepting hole 64.In the case where supplying working oil to actuator 67, formed in valve element 63
Notch part is configured between the 2nd connection stream 42 and actuator path 66, and the 2nd connection stream 42 and actuator path 66 are via this
Notch part connects, and is operated supply and discharge of the oil phase for actuator 67.On the other hand, work is not being supplied to actuator 67
In the case of making oil, the circular bead surface between the notch part of valve element 63 is configured between the 2nd connection stream 42 and actuator path 66, the
Connection between 2 connection streams 42 and actuator path 66 is blocked by the circular bead surface, without working oil relative to actuator 67
Supply and discharge.
In the valve tectosome 60 with above-mentioned construction, with the guiding stream 18 (reference picture 1 etc.) of flow rate regulating valve 10
The mode flow rate regulating valve 10 that each 1st connection stream 41 and the 2nd is connected between stream 42 is configured to be mounted to relative in valve structure
The insertion hole portions 53 for making the formation of main part 51 of body 60 are dismantled and assembled.Thus, between the 1st connection connection stream 42 of stream 41 and the 2nd
The flowing of working oil be adjusted by flow rate regulating valve 10, can utilize each flow rate regulating valve 10 to from the 1st connection stream 41 to
The flow (particularly maximum stream flow) for the working oil that 2nd connection stream 42 supplies definitely is controlled and reliably prevents work
Inflow (refluence) of the oil from the 2nd connection stream 42 to the 1st connection stream 41.
Being illustrated as more than, according to present embodiment, the single valve element with integral construction can be utilized
(flow rate regulating valve 10) realizes that the load of the load pressure for keeping supplying to actuator 67 keeps check-valves and possesses throttling
Hole and the flow control valve of constant flow rate is flowed according to the pressure difference between the inlet pressure and outlet pressure of the throttle orifice.By
This, can prevent the maximization of valve tectosome 60 and complication while make its high performance, can prevent working oil expectation it
Outer refluence and the flow to flowing into working oil to actuator 67 is controlled.Flow so can be rightly played by providing
Control valve and load keep the flow rate regulating valve 10 being integrally formed of the function of both check-valves and possess such flow tune
The valve tectosome 60 of whole valve 10, miniaturization and simplification while the work to being flowed into actuator 67 of valve tectosome 60 can be sought
The maximum stream flow for making oil is limited.
In addition, flow rate regulating valve 10 is arranged to like that by valve tectosome (reversal valve) 60 described above it is dismantled and assembled, no
It only can simply carry out the maintenance of flow rate regulating valve 10, repair, the valve for playing other functions can also be installed and fixed to substitute
Flow rate regulating valve 10.
Being known to only load since in the past keeps any one in check-valves and flow control valve to be mounted on such as one
The reversal valve (valve tectosome) of mounting part (i.e. an insertion hole portions 53), it is provided only with load and keeps check-valves and flow control
The reversal valve of the low price specification of one of valve processed is also more.In the reversal valve of such low price specification, only pass through by
Existing installation standing valve is altered to have simultaneously load to keep the above-mentioned of check-valves and the function both flow control valve
Flow rate regulating valve 10, so that it may realize the high performance reversal valve of functional promotion.In addition, preparing in advance can construct relative to valve
The mounting part (insertion hole portions 53) of body is detachably arranged fixed load and keeps check-valves, flow control valve and above-mentioned
Flow rate regulating valve 10, by the way that the appropriate valve for meeting needs is mounted on into mounting part from these valves, so that it may by one
Individual valve tectosome 60 plays various functions.
The present invention is not limited to above-mentioned embodiment and variation, may also comprise what those skilled in the art were contemplated that
The various forms that various modifications form are applied with, the effect played by the present invention is also not limited to above-mentioned item.Thus,
In the range of the thought and purport that do not depart from the technology of the present invention, each key element described in claims and specification can be entered
The various additions of row, change and part are deleted.
For example, in the above-described embodiment, aperture area adjusting body is by the integratedly structure of the plug base 27 with connector 17
Into the 1st cylindrical portion 28 form, but aperture area adjusting body both can be by the structure of the 1st cylindrical portion 28 that is separated with plug base 27
Into aperture area adjusting body can also be made up of the component independent with connector 17.
Claims (12)
1. a kind of flow rate regulating valve, it possesses：
Movable valve body, its have guiding stream, the guiding stream include with the 1st be connected stream connect the 1st opening portion and with
2nd opening portion of the 2nd connection stream connection, the allocation position of the movable valve body is according to the described 1st working oil for connecting stream
Pressure and it is described 2nd connection stream working oil pressure and change；
Aperture area adjusting body, its change that working oil can pass through according to the allocation position of the movable valve body the described 2nd
The aperture area of opening portion；
Movable sealing, its allocation position connect stream according to the pressure and the described 2nd of the working oil of the described 1st connection stream
The pressure of working oil and change,
The pressure of the working oil of the 2nd connection stream is big and the described 1st described in pressure ratio in the working oil of the described 1st connection stream
Connect the pressure of the working oil of stream and the described 2nd be connected stream working oil pressure the difference situation bigger than the 1st pressure differential
Under, the difference compared to the pressure for the working oil that the pressure of the working oil of the described 1st connection stream and the described 2nd are connected stream is institute
State the situation below the 1st pressure differential, the aperture area adjusting body enables the opening for the 2nd opening portion that working oil passes through
Area reduces,
The movable sealing can be according to the pressure of the working oil of the described 1st connection stream and the work of the 2nd connection stream
Make the pressure configuration of oil in the position for blocking the guiding stream, and can be configured at what is do not blocked the guiding stream
Position.
2. flow rate regulating valve according to claim 1, wherein,
The aperture area adjusting body is made up of the 1st cylindrical portion,
The movable valve body has the 2nd cylindrical portion of the inner side for being configured at the 1st cylindrical portion,
In the 2nd cylindrical portion formed with the 2nd opening portion,
1st cylindrical portion changes the scope for covering the 2nd opening portion according to the allocation position of the movable valve body, changes
Become the aperture area for the 2nd opening portion that working oil can pass through.
3. flow rate regulating valve according to claim 1 or 2, wherein,
The flow rate regulating valve is also equipped with elastic force assigning unit, the elastic force assigning unit to the work by being connected stream from the described 1st
The relative direction in direction that oil puts on the power of the movable valve body assigns elastic force to the movable valve body.
4. flow rate regulating valve according to claim 3, wherein,
The movable valve body determines allocation position based on following power：From the working oil of the described 1st connection stream to the 1st direction
The power of application；From the working oil flowed into from the 2nd connection stream described in the 1st connection flow road direction to the relative with the 1st direction the 2nd
The power that direction applies；The power applied by the elastic force assigning unit.
5. according to flow rate regulating valve according to any one of claims 1 to 4, wherein,
In the case that the pressure of the working oil of the 1st connection stream is big described in pressure ratio in the working oil of the described 2nd connection stream,
The movable seal portion configurations block the described 1st in the position abutted with forming the 1st opening forming portion of the 1st opening portion
Opening portion,
In the case that the pressure of the working oil of the 1st connection stream is small described in pressure ratio in the working oil of the described 2nd connection stream,
The movable seal portion configurations are in the position opened with the 1st port forming portion.
6. according to flow rate regulating valve according to any one of claims 1 to 5, wherein,
Valve element resettlement section is provided with the movable valve body, the valve element resettlement section is by than the movable big space of sealing
Formed, can movably be configured for the movable sealing,
The guiding stream includes the 1st opening portion, the valve element resettlement section and the 2nd opening portion,
The movable sealing has spherical shape,
1st opening portion has the diameter circular cross-section smaller than the diameter of the movable sealing.
7. a kind of valve tectosome, it possesses：
Main part, it has the 1st connection stream and the 2nd connection stream；
Flow rate regulating valve according to any one of claims 1 to 6.
8. valve tectosome according to claim 7, wherein,
The main part have with the described 1st be connected stream and it is described 2nd connect fluid communication insertion hole portions,
The flow rate regulating valve is configured at the insertion hole portions.
9. valve tectosome according to claim 8, wherein,
The flow rate regulating valve is configured to dismount relative to the insertion hole portions.
10. valve tectosome according to claim 8 or claim 9, wherein,
The insertion hole portions have：1st insertion section, it is configured between the 1st connection stream and the 2nd connection stream；
2nd insertion section, it is connected fluid communication with the described 2nd,
The top ends of the movable valve body, which are retreated, is freely configured at the 1st insertion section, the formation institute in the main part
State and sealed between the part of 1st insertion section and the top ends of the movable valve body.
11. valve tectosome according to claim 10, wherein,
The part between the 1st insertion section and the 2nd insertion section in the insertion hole portions is by the described 2nd connection stream
A part is formed.
12. the valve tectosome according to any one of claim 7~11, wherein,
The 1st connection stream connects with hydraulic power source,
The 2nd connection stream connects with actuator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016110325A JP6773455B2 (en) | 2016-06-01 | 2016-06-01 | Flow control valve and valve structure |
| JP2016-110325 | 2016-06-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107448429A true CN107448429A (en) | 2017-12-08 |
| CN107448429B CN107448429B (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710368381.2A Active CN107448429B (en) | 2016-06-01 | 2017-05-22 | Flow rate adjustment valve and valve structure |
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| Country | Link |
|---|---|
| JP (1) | JP6773455B2 (en) |
| KR (1) | KR102342222B1 (en) |
| CN (1) | CN107448429B (en) |
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| JP7360858B2 (en) * | 2019-09-10 | 2023-10-13 | ナブテスコ株式会社 | Fluid control equipment and construction machinery |
| CN112879634B (en) * | 2021-02-09 | 2022-12-27 | 国家石油天然气管网集团有限公司华南分公司 | Blade motor direct-drive and manual double-control electromagnetic pilot type Y-shaped water hammer relief valve |
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| CN202991686U (en) * | 2012-12-14 | 2013-06-12 | 阜新阜太泵业制造有限公司 | Constant flow overflow valve with spring base |
| DE102013103685A1 (en) * | 2013-04-12 | 2014-10-16 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Changeover valve and internal combustion engine with such a changeover valve |
| CN104314899A (en) * | 2013-09-11 | 2015-01-28 | 昆山新金福精密电子有限公司 | Reversing oil path system |
| CN203516093U (en) * | 2013-09-16 | 2014-04-02 | 合肥力威汽车油泵有限公司 | Pressure and flow control valve of steering oil pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017215004A (en) | 2017-12-07 |
| CN107448429B (en) | 2020-05-01 |
| KR102342222B1 (en) | 2021-12-21 |
| JP6773455B2 (en) | 2020-10-21 |
| KR20170136427A (en) | 2017-12-11 |
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