CN106855070B - 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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- CN106855070B CN106855070B CN201611180003.3A CN201611180003A CN106855070B CN 106855070 B CN106855070 B CN 106855070B CN 201611180003 A CN201611180003 A CN 201611180003A CN 106855070 B CN106855070 B CN 106855070B
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- proportional flow
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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 methods, belong to technical field of hydraulic pressure.The inserted valve includes main valve, main valve includes valve body and spool, spool is coaxially inserted into valve body, and the outer wall of spool and the inner wall of valve body are slidably matched, one end of valve body is sealing structure, cavity is equipped between one end of spool and one end of valve body, inserted valve further includes repairing module, repairing module includes control valve, valve body is equipped with first passage and second channel, first passage is connected to the first actuator port of cavity and control valve respectively, second channel is connected to the second actuator port of the oil inlet of hydraulic manifold block and control valve respectively, when spool is moved towards flowing hole, first actuator port of control valve is connected to the second actuator port of control valve.The invention avoids 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, is used to adjust the flow of hydraulic oil.
Common proportional flow inserted valve includes mainly main valve, and main valve includes valve body and spool.Wherein, one end of valve body is
The other end of closed structure, valve body is equipped with opening, and the side wall close to the opening of valve body is equipped with the overcurrent with open communication
Hole.Spool is plugged in valve body, and the outer wall of spool and the inner wall of valve body are slidably matched.It is equipped in spool and prolongs from one end of spool
The channel of the other end is reached, the channel and the open communication on valve body.When one end for being equipped with opening of valve body is inserted into hydraulic collection
When blocking upper, flowing hole is connected to the oil inlet of hydraulic manifold block, and opening is connected to the oil outlet of hydraulic manifold block.
When main valve is gradually converted into closing by being connected, spool is moved towards opening, gradually blocks opening and flowing hole, into
And separate the oil inlet and oil outlet of hydraulic manifold block.During spool moves, between spool and the closed one end of valve body
The volume of cavity gradually increase.Since the flow direction of hydraulic oil is to pass sequentially through flowing hole by the oil inlet of hydraulic manifold block
The oil outlet of hydraulic manifold block is flowed to the opening of valve body, so under the inertia of running of hydraulic power oil, hydraulic oil will not change stream
It can be flowed to, i.e., few fluid by flowing hole in the cavity between spool and the closed one end of valve body, lead to cavity inner fluid
Deficiency forms negative pressure, so that the hydraulic oil in cavity isolates bubble, and then generates cavitation, causes to damage to main valve.
Invention content
In order to solve the problems, such as that the main valve of inserted valve generates cavitation phenomenons, an embodiment of the present invention provides a kind of proportional flows
Inserted valve and its control method.The technical solution is as follows：
On the one hand, an embodiment of the present invention provides a kind of proportional flow inserted valves, suitable for being inserted on hydraulic manifold block,
The proportional flow inserted valve includes main valve, and the main valve includes valve body and spool, one end closing of the valve body, the valve body
The other end be equipped with the opening that be connected to for the oil outlet with hydraulic manifold block, and the side wall of the close opening of the valve body
It is equipped with the flowing hole for being connected to the oil inlet of the hydraulic manifold block, the flowing hole and the open communication；It is described
Spool is inserted into the valve body, and the outer wall of the spool and the inner wall of the valve body are slidably matched, and are equipped in the spool
The channel of the other end, the channel and the open communication on the valve body are extended to from one end of the spool,
The proportional flow inserted valve further includes repairing module, and the repairing module includes control valve, the spool and institute
It states and is equipped with cavity between closed one end of valve body, the valve body is equipped with first passage and second channel, the first passage
Be connected to respectively with the first actuator port of the cavity and the control valve, the second channel respectively with the hydraulic manifold block
Oil inlet be connected to the second actuator port of the control valve, the control valve is configured as when the spool is towards the mistake
When discharge orifice moves, the first actuator port of the control valve is connected to the second actuator port of the control valve.
In a kind of realization method of the present invention, the valve body includes valve seat, be arranged one end of valve seat valve pocket and set
The valve deck in the other end of the valve seat is set, the flowing hole is arranged on the valve pocket.
In another realization method of the present invention, the proportional flow inserted valve further 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 spool and the valve body
Between be equipped with the first working chamber and the second working chamber, the length of first working chamber and second working chamber along the valve body
Direction sealed spacer setting, the first actuator port of the pilot control module are connected to first working chamber, the guide
Second actuator port of control module is connected to second working chamber, and the pilot control module is configured as selectively leading to
The first actuator port of the pilot control module is crossed to the first working chamber oiling or by the pilot control module
The second actuator port to the second working chamber oiling.
In another realization method of the present 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 to first working chamber, the 3-position 4-way guide proportional valve
The second actuator port be connected to second working chamber.
In another realization method of the present invention, the spool of the 3-position 4-way guide proportional valve and the control valve
Response time is identical.
In another realization method of the present invention, the proportional flow inserted valve further includes control unit and first position
Sensor, the first position sensor are used to detect the spool position of the main valve, and described control unit is for receiving position
The position indicative signal is compared, root by indication signal with the first position signal that the first position sensor is sent out
The break-make of the control valve is controlled according to comparison result.
In another realization method of the present invention, the proportional flow inserted valve further includes second position sensor, institute
Control unit is stated to be electrically connected with the control terminal of the second position sensor and the 3-position 4-way guide proportional valve respectively, it is described
Second position sensor is used to send the to described control unit according to the position of the spool of the 3-position 4-way guide proportional valve
Two position signals, described control unit are used to be believed according to the second position signal, first position signal and the position instruction
Number, control the spool position of the 3-position 4-way guide proportional valve.
In another realization method of the present invention, one end of the spool is equipped with fixed plate, and the fixed plate is equipped with
The through-hole of multiple the connection cavitys and the spool, the first position sensor are connected by the fixed plate and the spool
It connects.
On the other hand, an embodiment of the present invention provides a kind of control methods of proportional flow inserted valve, are suitable for above-mentioned
Proportional flow inserted valve, the control method include：
Determine the moving direction of the spool of the main valve；
When the moving direction is the direction movement turned off to the main valve, by the repairing module to the main valve
Repairing.
Further, the moving direction of the spool of the determination main valve, including：
Receive position indicative signal；
Detect the position of the spool of the main valve；
The movement of the spool of the main valve is controlled according to the position of the spool of the main valve and the position indicative signal.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
When the present invention implements provided proportional flow inserted valve work, when the spool of main valve is towards the direction of flowing hole
(direction turned off towards main valve) is mobile, and the first actuator port of control valve is connected to 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, so as to which hydraulic oil is replenished in time when cavity volume increases, avoids the generation of cavitation phenomenons.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural schematic diagram 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 symbolic indication meaning is as follows in figure：
1- main valves, 11- valve bodies, 111- first passages, 112- second channels, 12- spools, 13- cavitys, 141- valve seats,
142- valve pockets, 143- valve decks, the first working chambers of 15-, the second working chambers of 16-, 17- fixed plates, 18- through-holes, 2- repairing modules,
21- control valves, the first control units of 22-, the first positions 3- sensor, 31- armature levers, 32- protective covers, 4- pilot control moulds
Block, 41- 3-position 4-way guide proportional valves, the second control units of 42-, 43- third control units, the second positions 44- sensor, A-
Hydraulic manifold block, B- flowing holes, C- oil inlets, D- oil outlets, E- openings.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
An embodiment of the present invention provides a kind of proportional flow inserted valves, suitable for being inserted on hydraulic manifold block A, such as Fig. 1
Shown, which includes main valve 1, and main valve 1 includes valve body 11 and spool 12, and one end of valve body 11 is closed, valve body
11 other end is equipped with the opening E being connected to for the oil outlet D with hydraulic manifold block A, and the side wall of the close opening E of valve body 11
It is equipped with the flowing hole B being connected to for the oil inlet C with hydraulic manifold block A, flowing hole B is connected to opening E；Spool 12 is coaxially inserted
In valve body 11, and the outer wall of spool 12 and the inner wall of valve body 11 are slidably matched, and are equipped with from one end of spool 12 in spool 12
The channel of the other end is extended to, channel is connected to the opening E on valve body 11.
In the present embodiment, proportional flow inserted valve further 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 equipped between spool 12 and closed one end of valve body 11, is set on valve body 11
There are a first passage 111 and second channel 112, the first actuator port A1 with cavity 13 and control valve 21 respectively of first passage 111
Connection, second channel 112 are connected to the second actuator port B1 of the oil inlet C of hydraulic manifold block A and control valve 21 respectively, are controlled
Valve 21 is configured as when spool 12 is moved towards flowing hole B, the first actuator port A1 of control valve 21 and the of control valve 21
Two actuator port B1 connections.
When the present invention implements provided proportional flow inserted valve work, when the spool 12 of main valve 1 is towards flowing hole B's
Direction (direction turned off towards main valve 1) mobile, the first actuator port A1 of control valve 21 and 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, so as to be replenished in time when 13 volume of cavity increases
Hydraulic oil avoids and cavitation phenomenons occurs because generating negative pressure in cavity 13.
In the present embodiment, valve body 11 includes valve seat 141, is arranged in the valve pocket 142 of one end of valve seat 141 and setting in valve
The valve deck 143 of the other end of seat 141, flowing hole B are 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
It states in realization method, valve pocket 142 can be an integral structure with valve seat 141, i.e. valve pocket 142 and valve seat 141 passes through integrally casting
Moulding process makes so that main valve 1 has better globality, it should be noted that in other embodiments, valve pocket 142 is also
It can be inserted 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 further includes pilot control module 4, and pilot control module 4 has first
Actuator port and the second actuator port are equipped with the first working chamber 15 and the between the lateral wall and the madial wall of valve body 11 of spool 12
Two working chambers 16, the first working chamber 15 and the second working chamber 16 are arranged along the length direction sealed spacer of valve body 11, pilot control
First actuator port of module 4 is connected to the first working chamber 15, the second actuator port and the second working chamber of pilot control module 4
16 connections, 4 module of pilot control module are configured as the first actuator port optionally through pilot control module 4 to first
15 oiling of working chamber or by the second actuator port of pilot control module 4 to 16 oiling of the second working chamber, to pass through guide
Control module 4, which is realized, controls the position of the spool 12 of main valve 1.
Specifically, pilot control module 4 includes 3-position 4-way guide proportional valve 41, and the of 3-position 4-way guide proportional valve 41
One actuator port A2 is connected to 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 is connected to, so as to carry out pilot control to main valve 1 by 3-position 4-way guide proportional valve 41.
Specifically, when the oil inlet P of 3-position 4-way guide proportional valve 41, the first work of 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 16,3-position 4-way guide proportional valve 41 the second actuator port
When the oil return inlet T of B2 and 3-position 4-way guide proportional valve 41 is sequentially communicated, spool 12 is connected backwards to flowing hole B movements, main valve 1,
So that the oil inlet C and oil outlet D of hydraulic manifold block A are connected to by the flowing hole B on spool 12；
As the oil inlet P of 3-position 4-way guide proportional valve 41, the second actuator port B2 of 3-position 4-way guide proportional valve 41
It is connected to 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 connection of logical guide proportional valve 41, spool 12 is moved towards flowing hole B, and main valve 1 is closed, so that hydraulic collection
The oil inlet C and oil outlet D of blocking A is blocked by spool 12.
Preferably, the response time of the spool of 3-position 4-way guide proportional valve 41 and control valve 21, (spool started to set out
The time of work) it is identical.In above-mentioned realization method, since main valve 1 is by 41 pilot control of 3-position 4-way guide proportional valve, so
When the spool generation of 3-position 4-way guide proportional valve 41 action, the spool 12 of main valve 1 also generates corresponding action therewith, i.e., empty
It is possible to will produce negative pressure in chamber 13, so ensureing the response time of the spool of 3-position 4-way guide proportional valve 41 and control valve 21
It is identical, that is, it ensure that control valve 21 can be before cavity 13 generates negative pressure, the just repairing into cavity 13, so as to avoid cavity
13 generate negative pressure.
In the present embodiment, proportional flow inserted valve further includes control unit and first position sensor 3, and first position passes
Sensor 3 is used to detect 12 position of spool of main valve 1, and control unit is for receiving position indicative signal a, by position indicative signal a
It is compared with the first position signal b that first position sensor 3 is sent out, the break-make of control valve 21 is controlled according to comparison result.
Specifically, control unit includes the first control unit 22 and the second control unit 42, first position sensor 3 include
Armature lever 31, armature lever 31 pass through valve body 11 and are fixedly connected with one end of the spool of main valve 12, the second control unit 42 difference
It being electrically connected with the first control unit 22 and first position sensor 3, the second control unit 42 is used to receive position indicative signal a,
And position indicative signal a is compared with the first position signal b that first position sensor 3 is sent out, the second control unit 42
According to the result of the comparison first control signal c is sent out to the first control unit 22.
In above-mentioned realization method, position indicative signal a can be the electric signal sent out by operating personnel, position instruction letter
Number a can be used to indicate that the position that operating personnel it is expected that the valve core movement of main valve 1 arrives, for example, the head office that spool can be moved
Journey is divided into multiple regions, and each region corresponds to the different voltages value of electric signal, when operating personnel it is expected valve core movement to a certain
When region, you can to send out 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 is sent out, first position signal b can be used to indicate that the current location of the spool of main valve 1.
Specifically, proportional flow inserted valve further includes second position sensor 44, and control unit is passed with the second position respectively
The control terminal of sensor 44 and 3-position 4-way guide proportional valve 41 is electrically connected, and second position sensor 44 is used for according to 3-position 4-way elder generation
The position for leading the spool of proportioning valve 41 sends second position signal d to control unit, and control unit according to position instruction for believing
Number a, first control signal c and second position signal d, the spool position of control 3-position 4-way guide proportional valve 41.
More specifically, control unit further includes third control unit 43, third control unit 43 is single with the first control respectively
The control terminal electrical connection of member 22, second position sensor 44 and 3-position 4-way guide proportional valve 41, second position sensor 44 are used
Second position signal d is sent in the position of the spool of detection 3-position 4-way guide proportional valve 41 and to the second control unit 42, the
Three control units 43 are for receiving and comparing first control signal c and second position signal d, and third control unit 43 is according to comparing
Result send out second control signal e to the control terminal of 3-position 4-way guide proportional valve 41.
In above-mentioned realization method, first control signal c can be electric signal, it is expected 3-position 4-way pilot ratio for indicating
The position that the valve core movement of example valve 41 arrives, for example, the total kilometres that spool can move are divided into multiple regions, each region pair
The different voltages value for answering electric signal, after third control unit 43 receives first control signal c, you can to know 3-position 4-way elder generation
The desired motion position of the spool of proportioning valve 41 is led, second position signal d can be the electricity sent out by second position sensor 44
Signal, second position signal d can be used to indicate that the current location of the spool of 3-position 4-way guide proportional valve 41, for example, by valve
The total kilometres that core can move are divided into multiple regions, and each region corresponds to the different voltages value of electric signal, when spool is located at certain
When one region, i.e., second position sensor 44 sends out the electric signal of corresponding voltage value to third control unit 43.
In the present embodiment, it is covered with protective cover 32 outside first position sensor 3, protective cover 32 is fixedly mounted on valve body 11
On, to play the role of protecting first position sensor 3.
In the present embodiment, one end of spool 12 is equipped with fixed plate 17, and fixed plate 17 is equipped with multiple 13 Hes of connection cavity
The armature lever 31 of the through-hole 18 of spool 12, first position sensor 3 is connect by fixed plate 17 with spool 12, so that first
The armature lever 31 of position sensor 3 can be more firm with spool connection.
An embodiment of the present invention provides a kind of control methods of proportional flow inserted valve, are suitable for ratio stream shown in FIG. 1
Inserted valve is measured, as shown in Fig. 2, the control method includes：
Step 101：Determine the moving direction of the spool of main valve.
Step 102：When moving direction is the direction movement turned off to main valve, by repairing module to main valve repairing.
When implementing provided control method control proportional flow inserted valve work through the invention, when the spool of main valve
When the direction turned off to main valve is moved, control repairing module is to main valve repairing, so as to when the cavity volume of main valve increases
Hydraulic oil is supplemented into cavity in time, avoids the generation of cavitation phenomenons.
An embodiment of the present invention provides a kind of control methods of proportional flow inserted valve, are suitable for ratio stream shown in FIG. 1
Inserted valve is measured, as shown in figure 3, the control method includes：
Step 201：Determine the moving direction of the spool of main valve.
When specific implementation, step 201 can be realized by mode shown in Fig. 4：
Step 2011：Receive position indicative signal.
Step 2012：The position of the spool of main valve is detected, first position letter corresponding with the position of the spool of main valve is obtained
Number.
Step 2013：According to the movement of the position of the spool of main valve and the spool of position indicative signal control bound, with true
Determine the moving direction of the spool of main valve.
Step 2013 can be realized in the following way：
First, the moving direction needed for the spool of main valve is judged according to position indicative signal and first position signal, and raw
At first control signal, first control signal is used to indicate the moving direction needed for spool, for example, when position indicative signal is to refer to
Show that main valve opens 40%, first position signal indicates that the spool of main valve is located at the position that main valve opens 50%, then main valve at this time
Spool needed for the direction moved be the direction closed towards main valve.
It is then detected that the position of the spool of 3-position 4-way guide proportional valve, obtains the valve with 3-position 4-way guide proportional valve
The corresponding second position signal in position of core.
Finally, needed for the spool that 3-position 4-way guide proportional valve is judged according to second position signal and first control signal
Moving direction, and second control signal is generated, the second control direction is for indicating needed for the spool of 3-position 4-way guide proportional valve
Moving direction, for example, when first control signal be the direction movement for indicating the spool of main valve and closing towards main valve, the second position
Signal indicates that the spool of 3-position 4-way guide proportional valve is off position, then second control signal controls 3-position 4-way at this time
The spool of guide proportional valve moves, and mobile position makes the first working chamber oiling of main valve, to push the spool energy of main valve
It moves in enough directions closed towards main valve.
Step 202：When moving direction is the direction movement turned off to main valve, by repairing module to main valve repairing.
In above-mentioned realization method, on the one hand, if the moving direction of the spool of proportional flow inserted valve is to be turned off to main valve
Direction movement when, repairing module also obtains first control signal, repairing module connection, so that obtaining repairing in cavity.
On the other hand, if the moving direction of the spool of proportional flow inserted valve is not the direction movement turned off to main valve,
May be 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 receives refers to
Show that signal makes the moving direction of the spool of proportional flow inserted valve be moved backwards to the direction that main valve turns off, repairing module is not at this time
Conducting, to the not repairing into cavity.
When implementing provided control method control proportional flow inserted valve work through the invention, when the spool of main valve
When the direction turned off to main valve is moved, control repairing module is to main valve repairing, so as to when the cavity volume of main valve increases
Hydraulic oil is supplemented into cavity in time, avoids the generation of cavitation phenomenons.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of proportional flow inserted valve, suitable for being inserted on hydraulic manifold block, the proportional flow inserted valve includes main valve,
The main valve includes valve body and spool, one end closing of the valve body, and the other end of the valve body, which is equipped with, to be used for and Hydraulic integration
Block oil outlet connection opening, and the valve body close to the opening side wall be equipped with for the hydraulic manifold block
Oil inlet connection flowing hole, the flowing hole and the open communication；The spool is inserted into the valve body, and described
The outer wall of spool and the inner wall of the valve body are slidably matched, and are equipped with from one end of the spool in the spool and extend to the other end
Channel, the open communication on the channel and the valve body, which is characterized in that
The proportional flow inserted valve further includes repairing module, and the repairing module includes control valve, the spool and the valve
Cavity is equipped between closed one end of body, the valve body is equipped with first passage and second channel, the first passage difference
Be connected to the first actuator port of the cavity and the control valve, the second channel respectively with the hydraulic manifold block into
Hydraulic fluid port is connected to the second actuator port of the control valve, and the control valve is configured as working as the spool towards the flowing hole
When mobile, the first actuator port of the control valve is connected to the second actuator port of the control valve.
2. proportional flow inserted valve according to claim 1, which is characterized in that the valve body includes valve seat, is arranged in valve
The valve pocket of one end of seat is arranged with the valve deck in the other end of the valve seat, the flowing hole is arranged on the valve pocket.
3. proportional flow inserted valve according to claim 2, which is characterized in that the proportional flow inserted valve further includes elder generation
Lead control module, the pilot control module has the first actuator port and the second actuator port, the lateral wall of the spool with
The first working chamber and the second working chamber, first working chamber and second working chamber are equipped between the madial wall of the valve body
Length direction sealed spacer along the valve body is arranged, and the first actuator port of the pilot control module works with described first
Chamber is connected to, and the second actuator port of the pilot control module is connected to second working chamber, the pilot control module quilt
It is configured to optionally through the first actuator port of the pilot control module to the 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, which is characterized 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 are connected to first working chamber, and described three
Second actuator port of position four-way guide proportional valve is connected to second working chamber.
5. proportional flow inserted valve according to claim 4, which is characterized in that the 3-position 4-way guide proportional valve and institute
The response time for stating the spool of control valve is identical.
6. proportional flow inserted valve according to claim 4, which is characterized in that the proportional flow inserted valve further 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 to receive position indicative signal, the first position that the position indicative signal and the first position sensor are sent out
Signal is compared, and the break-make of the control valve is controlled according to comparison result.
7. proportional flow inserted valve according to claim 6, which is characterized in that the proportional flow inserted valve further includes
Two position sensors, the described control unit control with the second position sensor and the 3-position 4-way guide proportional valve respectively
End processed electrical connection, the second position sensor are used for according to the position of the spool of the 3-position 4-way guide proportional valve to described
Control unit send second position signal, described control unit be used for according to the second position 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, which is characterized in that one end of the spool is equipped with fixed plate,
The fixed plate is equipped with the through-hole of multiple the connection cavitys and the spool, and the first position sensor passes through described solid
Fixed board is connect with the spool.
9. a kind of control method of proportional flow inserted valve, which is characterized in that be suitable for proportional flow described in claim 1 and insert
Valve is filled, the control method includes：
Determine the moving direction of the spool of the main valve；
When the moving direction is the direction movement turned off to the main valve, mended to the main valve by the repairing module
Oil.
10. control method according to claim 9, which is characterized in that the mobile side of the spool of the determination main valve
To, including：
Receive position indicative signal；
Detect the position of the spool of the main valve；
The movement of the spool of the main valve is controlled according to the position of the spool of the main valve and the position indicative signal.
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)
| Publication Number | Publication Date |
|---|---|
| CN106855070A CN106855070A (en) | 2017-06-16 |
| CN106855070B true CN106855070B (en) | 2018-07-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102018211866A1 (en) * | 2018-06-20 | 2019-12-24 | Robert Bosch Gmbh | Pilot operated hydraulic directional cartridge valve |
| 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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| CN102927074A (en) * | 2012-11-22 | 2013-02-13 | 兰州理工大学 | Anti-cavitation high frequency response and high flow proportional cartridge valve |
| 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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| US5730174A (en) * | 1996-07-01 | 1998-03-24 | Lubriquip, Inc. | Solenoid valve cartridge for lubrication divider valves |
| FR2805492B1 (en) * | 2000-02-28 | 2002-06-28 | Peugeot Citroen Automobiles Sa | REGULATION SYSTEM FOR A MOTOR VEHICLE SUSPENSION |
| EP1344945A2 (en) * | 2002-03-14 | 2003-09-17 | Howaldtswerke-Deutsche Werft Ag | Valve combination |
| DE102008042731A1 (en) * | 2008-10-10 | 2010-04-15 | Robert Bosch Gmbh | magnetic valve |
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| CN102418721A (en) * | 2011-12-07 | 2012-04-18 | 燕山大学 | Proportional cartridge valve with variable flow gain |
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| CN106855070A (en) | 2017-06-16 |
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