CN106855070A - A kind of proportional flow inserted valve and its control method - Google Patents
A kind of proportional flow inserted valve and its control method Download PDFInfo
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- CN106855070A CN106855070A CN201611180003.3A CN201611180003A CN106855070A CN 106855070 A CN106855070 A CN 106855070A CN 201611180003 A CN201611180003 A CN 201611180003A CN 106855070 A CN106855070 A CN 106855070A
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- valve element
- actuator port
- proportional flow
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
- F15B2013/004—Cartridge valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a kind of proportional flow inserted valve and its control method, belong to technical field of hydraulic pressure.The inserted valve includes main valve, main valve includes valve body and valve element, valve element is coaxially inserted into valve body, and the outer wall of valve element is slidably matched with the inwall of valve body, one end of valve body is sealing structure, cavity is provided between one end of valve element and one end of valve body, inserted valve also includes repairing module, repairing module includes control valve, valve body is provided with first passage and second channel, first actuator port of the first passage respectively with cavity and control valve is connected, second channel is connected with the oil inlet of hydraulic manifold block and the second actuator port of control valve respectively, when valve element is moved towards flowing hole, the first actuator port of valve is controlled to be connected with the second actuator port of control valve.Present invention, avoiding cavitation phenomenons.
Description
Technical field
The invention belongs to technical field of hydraulic pressure, more particularly to a kind of proportional flow inserted valve and its control method.
Background technology
Proportional flow inserted valve is a kind of common Hydraulic Elements, its flow for being used to adjust hydraulic oil.
Common proportional flow inserted valve mainly includes main valve, and main valve includes valve body and valve element.Wherein, one end of valve body is
Closed structure, the other end of valve body is provided with opening, and the side wall near the opening of valve body is provided with excessively stream with open communication
Hole.Valve element is plugged in valve body, and the outer wall of valve element is slidably matched with the inwall of valve body.It is provided with valve element from one end of valve element and is prolonged
The passage of the other end is reached, the open communication on the passage and valve body.When one end for being provided with opening of valve body is inserted into hydraulic collection
When blocking upper, flowing hole is connected with the oil inlet of hydraulic manifold block, and opening connects with the oil-out of hydraulic manifold block.
When main valve is gradually converted into closing by turning on, valve element is moved towards opening, and gradually blocking opening and flowing hole, enter
And separate the oil inlet and oil-out of hydraulic manifold block.During valve element is moved, between valve element and the closed one end of valve body
The volume of cavity gradually increase.Because the flow direction of hydraulic oil is to pass sequentially through flowing hole by the oil inlet of hydraulic manifold block
Opening with valve body flows to the oil-out of hydraulic manifold block, so under the inertia of running of hydraulic power oil, hydraulic oil will not change stream
To that is, few fluid can be flowed in the cavity between valve element and the closed one end of valve body by flowing hole, cause cavity inner fluid
Deficiency, forms negative pressure, so that the hydraulic oil in cavity isolates bubble, and then produces cavitation, and main valve is caused to damage.
The content of the invention
In order to the main valve for solving the problems, such as inserted valve produces cavitation phenomenons, a kind of proportional flow is the embodiment of the invention provides
Inserted valve and its control method.The technical scheme is as follows：
On the one hand, the embodiment of the invention provides a kind of proportional flow inserted valve, it is adaptable to be inserted on hydraulic manifold block,
The proportional flow inserted valve includes main valve, and the main valve includes valve body and valve element, and one end of the valve body is closed, the valve body
The other end be provided with the opening connected for the oil-out with hydraulic manifold block, and the close described opening of the valve body side wall
It is provided with the flowing hole connected for the oil inlet with the hydraulic manifold block, the flowing hole and the open communication；It is described
Valve element is inserted into the valve body, and the outer wall of the valve element is slidably matched with the inwall of the valve body, is provided with the valve element
Extend to the passage of the other end from one end of the valve element, the open communication on the passage and the valve body,
The proportional flow inserted valve also includes repairing module, and the repairing module includes control valve, the valve element and institute
Cavity is provided between the one end for the closing for stating valve body, the valve body is provided with first passage and second channel, the first passage
The first actuator port with the cavity and the control valve is connected respectively, the second channel respectively with the hydraulic manifold block
Oil inlet connected with the second actuator port of the control valve, it is described control valve be configured as the valve element towards the mistake
When discharge orifice is moved, the first actuator port of the control valve is connected with the second actuator port of the control valve.
In a kind of implementation of the invention, the valve body is including valve seat, the valve pocket of the one end for being arranged on valve seat and sets
The bonnet of the other end in the valve seat is put, the flowing hole is arranged on the valve pocket.
In another implementation of the invention, the proportional flow inserted valve also includes pilot control module, described
Pilot control module has the first actuator port and the second actuator port, the madial wall of the lateral wall of the valve element and the valve body
Between be provided with the first working chamber and the second working chamber, first working chamber and second working chamber along the valve body length
Direction sealed spacer is set, and the first actuator port of the pilot control module is connected with first working chamber, the guide
Second actuator port of control module is connected with second working chamber, and the pilot control module is configured as optionally leading to
The first actuator port of the pilot control module is crossed to first working chamber oiling or by the pilot control module
The second actuator port to the second working chamber oiling.
In another implementation of the invention, the pilot control module includes 3-position 4-way guide proportional valve, institute
The first actuator port for stating 3-position 4-way guide proportional valve is connected with first working chamber, the 3-position 4-way guide proportional valve
The second actuator port connected with second working chamber.
In another implementation of the invention, the valve element of the 3-position 4-way guide proportional valve and the control valve
Response time is identical.
In another implementation of the invention, the proportional flow inserted valve also includes control unit and first position
Sensor, the first position sensor is used to detect the spool position of the main valve, and described control unit is used for receiving position
Indication signal, the first position signal that the position indicative signal sends with the first position sensor is compared, root
According to the break-make of the comparative result control control valve.
In another implementation of the invention, the proportional flow inserted valve also includes second place sensor, institute
Control end of the control unit respectively with the second place sensor and the 3-position 4-way guide proportional valve is stated to electrically connect, it is described
Second place sensor is used to send the to described control unit according to the position of the valve element of the 3-position 4-way guide proportional valve
Two position signallings, described control unit is used to be believed according to the second place signal, first position signal and the position instruction
Number, control the spool position of the 3-position 4-way guide proportional valve.
In another implementation of the invention, one end of the valve element is provided with fixed plate, and the fixed plate is provided with
Multiple connects the through hole of the cavity and the valve element, and the first position sensor is connected by the fixed plate with the valve element
Connect.
On the other hand, the embodiment of the invention provides a kind of control method of proportional flow inserted valve, it is adaptable to above-mentioned
Proportional flow inserted valve, the control method includes：
Determine the moving direction of the valve element of the main valve；
When the moving direction is that the direction turned off to the main valve is moved, by the repairing module to the main valve
Repairing.
Further, the moving direction of the valve element for determining the main valve, including：
Receiving position indication signal；
Detect the position of the valve element of the main valve；
The position of the valve element according to the main valve and the position indicative signal control the movement of the valve element of the main valve.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
When the present invention implements provided proportional flow inserted valve and works, when the valve element of main valve is towards the direction of flowing hole
(towards the direction of main valve shut-off) is mobile, controls the first actuator port of valve to be connected with the second actuator port of control valve so that
Hydraulic oil enters second channel from the oil inlet of hydraulic manifold block, then pass sequentially through the second actuator port, the first actuator port and
First passage enters cavity such that it is able to supplement hydraulic oil in time when cavity volume increases, it is to avoid the generation of cavitation phenomenons.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description
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 structural representation of proportional flow inserted valve provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the control method of proportional flow inserted valve provided in an embodiment of the present invention；
Fig. 3 is the flow chart of the control method of proportional flow inserted valve provided in an embodiment of the present invention；
Fig. 4 is the flow chart of the control method of proportional flow inserted valve provided in an embodiment of the present invention；
Each symbol represents that implication is as follows in figure：
1- main valves, 11- valve bodies, 111- first passages, 112- second channels, 12- valve elements, 13- cavitys, 141- valve seats,
142- valve pockets, 143- bonnets, the working chambers of 15- first, the working chambers of 16- second, 17- fixed plates, 18- through holes, 2- repairing modules,
21- controls valve, the control units of 22- first, 3- first positions sensor, 31- armature levers, 32- protective covers, 4- pilot control moulds
Block, 41- 3-position 4-way guide proportional valves, the control units of 42- second, the control units of 43- the 3rd, 44- second place sensors, A-
Hydraulic manifold block, B- flowing holes, C- oil inlets, D- oil-outs, E- openings.
Specific 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 embodiment of the invention provides a kind of proportional flow inserted valve, it is adaptable to be inserted on hydraulic manifold block A, such as Fig. 1
Shown, the proportional flow inserted valve includes main valve 1, and main valve 1 includes valve body 11 and valve element 12, and one end of valve body 11 is closed, valve body
11 other end is provided with the opening E connected for the oil-out C with hydraulic manifold block A, and the close opening E of valve body 11 side wall
The flowing hole B connected for the oil inlet C with hydraulic manifold block A is provided with, flowing hole B is connected with opening E；Valve element 12 is coaxially inserted
In valve body 11, and the outer wall of valve element 12 is slidably matched with the inwall of valve body 11, and the one end from valve element 12 is provided with valve element 12
The passage of the other end is extended to, passage is connected with the opening E on valve body 11.
In the present embodiment, proportional flow inserted valve also includes repairing module 2, and repairing module 2 includes control valve 21, control
Valve 21 can be bi-bit bi-pass proportioning valve, and cavity 13 is provided between one end of the closing of valve element 12 and valve body 11, be set on valve body 11
Have first passage 111 and a second channel 112, first passage 111 respectively with cavity 13 and the first actuator port A1 of control valve 21
Connection, second channel 112 is connected with the oil inlet C of hydraulic manifold block A and the second actuator port B1 of control valve 21 respectively, is controlled
Valve 21 be configured as valve element 12 towards flowing hole B move when, control valve 21 the first actuator port A1 and control valve 21 the
Two actuator port B1 are connected.
When the present invention implements provided proportional flow inserted valve work, when the valve element 12 of main valve 1 is towards flowing hole B's
Direction (towards the direction of the shut-off of main valve 1) is mobile, controls the first actuator port A1 of valve 21 and the second working oil of control valve 21
Mouth B1 connections so that hydraulic oil enters second channel 112 from the oil inlet C of hydraulic manifold block A, then passes sequentially through the second working oil
Mouth B1, the first actuator port A1 and first passage 111 enter cavity 13 such that it is able to supplemented in time when the volume of cavity 13 increases
Hydraulic oil, it is to avoid cavitation phenomenons occur because producing negative pressure in cavity 13.
In the present embodiment, valve body 11 is including valve seat 141, the valve pocket 142 of the one end for being arranged on valve seat 141 and is arranged on valve
The bonnet 143 of the other end of seat 141, flowing hole B is arranged on valve pocket 142.
Specifically, valve pocket 142 extends along the length direction of valve body 11, and valve pocket 142 is inserted on hydraulic manifold block A.Upper
State in implementation, valve pocket 142 can be that integral type structure, i.e. valve pocket 142 and valve seat 141 pass through integrally casting with valve seat 141
Moulding process makes so that main valve 1 has more preferable globality, it is necessary to explanation, in other embodiments, valve pocket 142 is also
Can be inserted into by way of interference fit on valve seat 141, so that valve pocket 142 and valve seat 141 can be fabricated separately, drop
The low manufacture difficulty of main valve 1.
In the present embodiment, proportional flow inserted valve also includes pilot control module 4, and pilot control module 4 has first
Actuator port and the second actuator port, are provided with the first working chamber 15 and between the lateral wall of valve element 12 and the madial wall of valve body 11
Two working chambers 16, the first working chamber 15 and the second working chamber 16 are set along the length direction sealed spacer of valve body 11, pilot control
First actuator port of module 4 is connected with the first working chamber 15, second actuator port and the second working chamber of pilot control module 4
16 connections, the module of pilot control module 4 is configured as the first actuator port optionally through pilot control module 4 to first
The oiling of working chamber 15 or by the second actuator port of pilot control module 4 to the oiling of the second working chamber 16, with by guide
Control module 4 realizes the position control to the valve element 12 of main valve 1.
Specifically, pilot control module 4 includes 3-position 4-way guide proportional valve 41, the of 3-position 4-way guide proportional valve 41
One actuator port A2 is connected with the first working chamber 15, the work of the second actuator port B2 of 3-position 4-way guide proportional valve 41 and second
Chamber 16 connects such that it is able to carry out pilot control to main valve 1 by 3-position 4-way guide proportional valve 41.
First work of oil inlet P, 3-position 4-way guide proportional valve 41 specifically, when 3-position 4-way guide proportional valve 41
Hydraulic fluid port A2 and the first working chamber 15 are sequentially communicated, the second working chamber 16, the second actuator port of 3-position 4-way guide proportional valve 41
When the oil return inlet T of B2 and 3-position 4-way guide proportional valve 41 is sequentially communicated, the dorsad flowing hole B movements of valve element 12, main valve 1 is turned on,
So that the oil inlet C and oil-out D of hydraulic manifold block A are connected by the flowing hole B on valve element 12；
Second actuator port B2 of oil inlet P, 3-position 4-way guide proportional valve 41 when 3-position 4-way guide proportional valve 41
Connected with the second working chamber 16, the first working chamber 15, the first actuator port A2 of 3-position 4-way guide proportional valve 41 and three four
When the oil return inlet T of logical guide proportional valve 41 is connected, valve element 12 is moved towards flowing hole B, and main valve 1 is closed, so that hydraulic collection
The oil inlet C and oil-out D of blocking A are blocked by valve element 12.
Preferably, (valve element starts to set out response time of valve element of 3-position 4-way guide proportional valve 41 and control valve 21
The time of work) it is identical.In above-mentioned implementation, because main valve 1 is by the pilot control of 3-position 4-way guide proportional valve 41, so
When the valve element generation of 3-position 4-way guide proportional valve 41 is acted, the valve element 12 of main valve 1 also produces corresponding action therewith, i.e., empty
In chamber 13 it is possible to that negative pressure can be produced, so ensureing the response time of the valve element of 3-position 4-way guide proportional valve 41 and control valve 21
It is identical, that is, ensure that control valve 21 can be before cavity 13 produces negative pressure, just to repairing in cavity 13, so as to avoid cavity
13 produce negative pressure.
In the present embodiment, proportional flow inserted valve also includes control unit and first position sensor 3, and first position passes
Sensor 3 is used to detect the position of valve element 12 of main valve 1, and control unit is used for receiving position indication signal a, by position indicative signal a
The first position signal b sent with first position sensor 3 is compared, according to the break-make of comparative result control control valve 21.
Specifically, control unit includes the first control unit 22 and the second control unit 42, and first position sensor 3 includes
Armature lever 31, armature lever 31 is fixedly connected through valve body 11 and with one end of the valve element 12 of main valve, and the second control unit 42 is distinguished
Electrically connected with the first control unit 22 and first position sensor 3, the second control unit 42 is used for receiving position indication signal a,
And the first position signal b that position indicative signal a is sent with first position sensor 3 is compared, the second control unit 42
First control signal c is sent to the first control unit 22 according to result of the comparison.
In above-mentioned implementation, position indicative signal a can be the electric signal sent by operating personnel, position instruction letter
Number a can be used to indicate that operating personnel expect the position that the valve core movement of main valve 1 is arrived, for example, the head office that valve element can be moved
Journey is divided into multiple regions, the different magnitudes of voltage of each region correspondence electric signal, when operating personnel expect valve core movement to a certain
During region, you can to send the electric signal of corresponding voltage value to the second control unit 42, first position signal b can be by first
The electric signal that position sensor 3 sends, first position signal b can be used to indicate that the current location of the valve element of main valve 1.
Specifically, proportional flow inserted valve also includes second place sensor 44, and control unit is passed with the second place respectively
The control end electrical connection of sensor 44 and 3-position 4-way guide proportional valve 41, second place sensor 44 is used for according to 3-position 4-way elder generation
The position for leading the valve element of proportioning valve 41 sends second place signal d to control unit, and control unit is used to be believed according to position instruction
Number a, the first control signal c and second place signal d, the spool position of control 3-position 4-way guide proportional valve 41.
More specifically, control unit also includes the 3rd control unit 43, the 3rd control unit 43 is single with the first control respectively
The control end electrical connection of unit 22, second place sensor 44 and 3-position 4-way guide proportional valve 41, second place sensor 44 is used
Second place signal d is sent in the position of the valve element of detection 3-position 4-way guide proportional valve 41 and to the second control unit 42, the
Three control units 43 are used to receive and compare the first control signal c and second place signal d, and the 3rd control unit 43 is according to comparing
Result send the second control signal e to the control end of 3-position 4-way guide proportional valve 41.
In above-mentioned implementation, the first control signal c can be electric signal, and 3-position 4-way pilot ratio is expected for representing
The position that the valve core movement of example valve 41 is arrived, for example, the total kilometres that valve element can be moved are divided into multiple regions, each region pair
The different magnitudes of voltage of electric signal are answered, after the 3rd control unit 43 receives the first control signal c, you can to know 3-position 4-way elder generation
The desired motion position of the valve element of proportioning valve 41 is led, second place signal d can be the electricity sent by second place sensor 44
Signal, second place signal d can be used to indicate that the current location of the valve element of 3-position 4-way guide proportional valve 41, for example, by valve
The total kilometres that core can be moved are divided into multiple regions, the different magnitudes of voltage of each region correspondence electric signal, when valve element is located at certain
During one region, i.e., second place sensor 44 sends the electric signal of corresponding voltage value to the 3rd control unit 43.
In the present embodiment, protective cover 32 is covered with outside first position sensor 3, protective cover 32 is fixedly mounted on valve body 11
On, so as to serve the effect of protection first position sensor 3.
In the present embodiment, one end of valve element 12 is provided with fixed plate 17, and fixed plate 17 is provided with multiple connection Hes of cavity 13
The through hole 18 of valve element 12, the armature lever 31 of first position sensor 3 is connected by fixed plate 17 with valve element 12, so that first
The armature lever 31 of position sensor 3 can be more firm with valve element connection.
The embodiment of the invention provides a kind of control method of proportional flow inserted valve, it is adaptable to the ratio stream shown in Fig. 1
Amount inserted valve, as shown in Fig. 2 the control method includes：
Step 101：Determine the moving direction of the valve element of main valve.
Step 102：When moving direction is that the direction turned off to main valve is moved, by repairing module to main valve repairing.
When provided control method control proportional flow inserted valve work is implemented by the present invention, when the valve element of main valve
When the direction turned off to main valve is moved, control repairing module is to main valve repairing such that it is able to when the cavity volume of main valve increases
In time to supplementing hydraulic oil in cavity, it is to avoid the generation of cavitation phenomenons.
The embodiment of the invention provides a kind of control method of proportional flow inserted valve, it is adaptable to the ratio stream shown in Fig. 1
Amount inserted valve, as shown in figure 3, the control method includes：
Step 201：Determine the moving direction of the valve element of main valve.
When implementing, step 201 can be realized by way of shown in Fig. 4：
Step 2011：Receiving position indication signal.
Step 2012：The position of the valve element of main valve is detected, first position letter corresponding with the position of the valve element of main valve is obtained
Number.
Step 2013：The position of the valve element according to main valve and the movement of the valve element of position indicative signal control bound, with true
Determine the moving direction of the valve element of main valve.
Step 2013 can be realized in the following way：
First, the moving direction according to needed for position indicative signal and first position signal judge the valve element of main valve, and it is raw
Into the first control signal, the moving direction that the first control signal is used for needed for representing valve element, for example, when position indicative signal is finger
Show that main valve opens 40%, first position signal represents that the valve element of main valve is located at the position that main valve opens 50%, then now main valve
Valve element needed for the direction moved be the direction closed towards main valve.
It is then detected that the position of the valve element of 3-position 4-way guide proportional valve, obtains the valve with 3-position 4-way guide proportional valve
The corresponding second place signal in position of core.
Finally, according to needed for second place signal and the first control signal judge the valve element of 3-position 4-way guide proportional valve
Moving direction, and the second control signal is generated, the second control direction is for needed for the valve element for representing 3-position 4-way guide proportional valve
Moving direction, for example, when the first control signal is that the direction for indicating the valve element of main valve to close towards main valve is moved, the second place
Signal represents that the valve element of 3-position 4-way guide proportional valve is off position, then now the second control signal control 3-position 4-way
The valve element movement of guide proportional valve, mobile position causes the first working chamber oiling of main valve, so as to promote the valve element energy of main valve
Enough direction movements closed towards main valve.
Step 202：When moving direction is that the direction turned off to main valve is moved, by repairing module to main valve repairing.
In above-mentioned implementation, on the one hand, if the moving direction of the valve element of proportional flow inserted valve is to be turned off to main valve
Direction when moving, repairing module also obtains the first control signal, repairing module connection, so that obtaining repairing in cavity.
On the other hand, if the moving direction of the valve element of proportional flow inserted valve is not when being moved to the direction of main valve shut-off,
It is probably that proportional flow inserted valve does not receive any position indicative signal, it is also possible to which the position that proportional flow inserted valve is received refers to
Show signal so that the direction movement of the moving direction dorsad main valve shut-off of the valve element of proportional flow inserted valve, now repairing module is not
Conducting, from without to repairing in cavity.
When provided control method control proportional flow inserted valve work is implemented by the present invention, when the valve element of main valve
When the direction turned off to main valve is moved, control repairing module is to main valve repairing such that it is able to when the cavity volume of main valve increases
In time to supplementing hydraulic oil in cavity, it is to avoid the generation of cavitation phenomenons.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of proportional flow inserted valve, it is adaptable to be inserted on hydraulic manifold block, the proportional flow inserted valve includes main valve,
The main valve includes valve body and valve element, and one end of the valve body is closed, the other end of the valve body be provided with for Hydraulic integration
Block oil-out connection opening, and the close described opening of the valve body side wall be provided with for the hydraulic manifold block
Oil inlet connection flowing hole, the flowing hole and the open communication；The valve element is inserted into the valve body, and described
The outer wall of valve element is slidably matched with the inwall of the valve body, is provided with the valve element from one end of the valve element and extends to the other end
Passage, the open communication on the passage and the valve body, it is characterised in that
The proportional flow inserted valve also includes repairing module, and the repairing module includes control valve, the valve element and the valve
Cavity is provided between one end of the closing of body, the valve body is provided with first passage and second channel, the first passage difference
The first actuator port with the cavity and the control valve connects, and the second channel enters with the hydraulic manifold block respectively
Hydraulic fluid port is connected with the second actuator port of the control valve, and the control valve is configured as the valve element towards the flowing hole
When mobile, the first actuator port of the control valve is connected with the second actuator port of the control valve.
2. proportional flow inserted valve according to claim 1, it is characterised in that the valve body includes valve seat, is arranged on valve
The valve pocket of one end of seat and be arranged on the valve seat the other end bonnet, the flowing hole is arranged on the valve pocket.
3. proportional flow inserted valve according to claim 2, it is characterised in that the proportional flow inserted valve is also included first
Lead control module, the pilot control module has the first actuator port and the second actuator port, the lateral wall of the valve element with
The first working chamber and the second working chamber, first working chamber and second working chamber are provided between the madial wall of the valve body
Set along the length direction sealed spacer of the valve body, the first actuator port of the pilot control module and described first works
Chamber is connected, and the second actuator port of the pilot control module is connected with second working chamber, the pilot control module quilt
It is configured to optionally through the first actuator port of the pilot control module to first working chamber oiling or passes through
Second actuator port of the pilot control module is to the second working chamber oiling.
4. proportional flow inserted valve according to claim 3, it is characterised in that the pilot control module includes three four
Logical guide proportional valve, the first actuator port of the 3-position 4-way guide proportional valve is connected with first working chamber, and described three
Second actuator port of position four-way guide proportional valve is connected with second working chamber.
5. proportional flow inserted valve according to claim 4, it is characterised in that the 3-position 4-way guide proportional valve and institute
The response time for stating the valve element of control valve is identical.
6. proportional flow inserted valve according to claim 4, it is characterised in that the proportional flow inserted valve also includes control
Unit processed and first position sensor, the first position sensor are used to detect the spool position of the main valve, the control
Unit is used for receiving position indication signal, the first position that the position indicative signal is sent with the first position sensor
Signal is compared, according to the break-make of the comparative result control control valve.
7. proportional flow inserted valve according to claim 6, it is characterised in that the proportional flow inserted valve also includes the
Two position sensors, described control unit respectively with the control of the second place sensor and the 3-position 4-way guide proportional valve
End electrical connection processed, the second place sensor is used for the position of the valve element according to the 3-position 4-way guide proportional valve to described
Control unit send second place signal, described control unit be used for according to the second place signal, first position signal and
The position indicative signal, controls the spool position of the 3-position 4-way guide proportional valve.
8. proportional flow inserted valve according to claim 6, it is characterised in that one end of the valve element is provided with fixed plate,
The fixed plate is provided with multiple through holes for connecting the cavity and the valve element, and the first position sensor is by described solid
Fixed board is connected with the valve element.
9. a kind of control method of proportional flow inserted valve, it is characterised in that inserted suitable for the proportional flow described in claim 1
Dress valve, the control method includes：
Determine the moving direction of the valve element of the main valve；
When the moving direction is that the direction turned off to the main valve is moved, mended to the main valve by the repairing module
Oil.
10. control method according to claim 9, it is characterised in that the mobile side of the valve element of the determination main valve
To, including：
Receiving position indication signal；
Detect the position of the valve element of the main valve；
The position of the valve element according to the main valve and the position indicative signal control the movement of the valve element of the main valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180003.3A CN106855070B (en) | 2016-12-19 | 2016-12-19 | A kind of proportional flow inserted valve and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180003.3A CN106855070B (en) | 2016-12-19 | 2016-12-19 | A kind of proportional flow inserted valve and its control method |
Publications (2)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617243A (en) * | 2018-06-20 | 2019-12-27 | 罗伯特·博世有限公司 | Pre-controlled hydraulic directional plug-in valve |
| CN112303053A (en) * | 2020-09-21 | 2021-02-02 | 南京威孚金宁有限公司 | Control system and control method for electric proportional threaded cartridge valve group |
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| CN202789805U (en) * | 2012-08-21 | 2013-03-13 | 山东泰丰液压股份有限公司 | Hydraulic control device of electro-hydraulic feedback proportional throttling cartridge valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110617243A (en) * | 2018-06-20 | 2019-12-27 | 罗伯特·博世有限公司 | Pre-controlled hydraulic directional plug-in valve |
| CN112303053A (en) * | 2020-09-21 | 2021-02-02 | 南京威孚金宁有限公司 | Control system and control method for electric proportional threaded cartridge valve group |
| CN112303053B (en) * | 2020-09-21 | 2022-08-09 | 南京威孚金宁有限公司 | Control system and control method for electric proportional threaded cartridge valve group |
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| CN106855070B (en) | 2018-07-31 |
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