CN108679026B - A kind of multiple-sensor integration formula intelligent control proportional reversing valve and its control method - Google Patents
A kind of multiple-sensor integration formula intelligent control proportional reversing valve and its control method Download PDFInfo
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- CN108679026B CN108679026B CN201810786743.4A CN201810786743A CN108679026B CN 108679026 B CN108679026 B CN 108679026B CN 201810786743 A CN201810786743 A CN 201810786743A CN 108679026 B CN108679026 B CN 108679026B
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- pressure
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- 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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/061—Sliding valves
- F16K31/0613—Sliding valves with cylindrical slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
Abstract
The invention discloses a kind of multiple-sensor integration formula intelligent control proportional reversing valve and its control methods.The valve includes valve body, left proportion electro-magnet, right proportion electro-magnet, left centralizing spring, right centralizing spring, spool, left catch, right catch, left block, right block, left push rod, right push rod, left sliding panel, right sliding panel, left mounting blocks, right mounting blocks, left fastening spring, right fastening spring, left front fixed plate, left back fixed plate, right front shoe, right rear fixed plate, left light-duty linear guide, right light-duty linear guide etc..Proportional reversing valve of the invention is integrated with power, displacement, pressure and temperature sensor, and the detection of the spool axial force, spool displacement, hydraulic fluid port pressure and hydraulic fluid port temperature under reversal valve normal operating conditions may be implemented, and has stronger condition monitoring capabilities；The measurement of spool hydraulic power and static friction may be implemented；By the integrated application to heat transfer agent, pressure may be implemented and control flow control function unrelated with pressure.
Description
Technical field
The present invention relates to proportioning valve technical field more particularly to a kind of multiple-sensor integration formula intelligent control proportional reversing valves
And its control method.
Background technique
Electric hydraulic control valve is pressure and flow control element important in hydraulic system, be electrohydraulic control technology core and
Major power amplifier element.Proportional control valve has preferable linear scale control function and contamination resistance, can effectively letter
Change hydraulic system and enhance the controllability of system, is widely used in the fields such as automation equipment and mechanically moving.Wherein ratio is changed
To valve by commutation and scaling-based shift control to spool, realizes to the control of oil liquid flow direction and flow, be provided simultaneously with to system
The function that pressure is adjusted is a kind of multifunction hydraulic control element, achieves and be widely applied in various fields.
Current small flow proportional reversal valve mostly uses greatly the form of two solenoid actuateds to carry out ratio control, does not install biography
Sensor only installs pressure or displacement sensor, and simple state aware and coarse control function may be implemented.
But current proportional reversing valve is insufficient to the detection function of spool state, to spool stress and fluid state of a control
Sensing capability is inadequate, and control function is single, cannot achieve the measurement to hydraulic power and frictional force, it is difficult to realize the event based on detection
Hinder diagnostic function.
Summary of the invention
Present invention aims at the deficiencies for being directed to existing proportional reversing valve, and multimode measurement can be carried out by providing one kind
Multiple-sensor integration formula intelligent control proportional reversing valve and its control method.The valve may be implemented to spool stress, spool displacement
And the measurement of load hydraulic fluid port pressure, it realizes the grasp of comparative example reversal valve operating status, improves proportional reversing valve itself perception
Ability.
The present invention is achieved through the following technical solutions: a kind of multiple-sensor integration formula intelligent control proportional reversing valve, should
Valve includes valve body, left proportion electro-magnet, right proportion electro-magnet, left centralizing spring, right centralizing spring, spool, left catch, right gear
Piece, left block, right block, left push rod, right push rod, left seal O-ring, right seal O-ring, left sliding panel, right sliding panel, Zuo An
It is fixed after filling block, right mounting blocks, left fastening spring, right fastening spring, left front fixed plate, left back fixed plate, right front shoe, the right side
Plate, left light-duty linear guide, right light-duty linear guide and installation valve block；
The valve body is bilateral symmetry, and inner hollow is equipped with 5 annular chambers, outermost two rings from left to right
Shape chamber is connected to outside the valve body by No. 2 runners and No. 3 runners respectively by internal No. 1 runner connection, two intermediate annular chambers；
Two annular chambers of valve body outermost and No. 1 runner form T chamber, are used for oil return；Left side annular chamber is formed with No. 2 runners among valve body
A chamber, for providing control oil liquid to side oil circuit；Valve body right middle annular chamber and No. 3 runners form B chamber, for another
Side oil circuit provides control oil liquid；Valve body central annular chamber forms P chamber, for receiving system fuel feeding；
The spool is mounted on valve inner；Left catch is consistent with right catch's structure, and centre is provided with round hole, connects respectively
It connects at left and right sides of spool；Left centralizing spring and right centralizing spring are separately mounted to left catch and the outside of right catch；Left block
With right block respectively by being threadably mounted in installation valve block, and it is located at the outside of left centralizing spring and right centralizing spring,
The function of axial restraint is played to spool, left catch, right catch, left centralizing spring and right centralizing spring；In left block and right block
Between be provided with aperture, have an annular O-ring mounting groove in aperture, left seal O-ring and right seal O-ring are separately mounted to left gear
In the O-ring mounting groove of block and right block；
The left push rod and right push rod are separately mounted in the aperture of left block and right block, and left push rod one end passes through left gear
Piece centre bore is in contact with spool, and the other end is in contact with left sliding panel, and right push rod one end passes through right catch's centre bore and spool
It is in contact, the other end is in contact with right sliding panel；Left sliding panel is bolted on the sliding block of left light-duty linear guide
On, right sliding panel is bolted on the sliding block of right light-duty linear guide；Left light-duty linear guide and the right side are light
The guide rail of type linear guide is fixed in installation valve block, and installation valve block is bolted on valve body bottom surface；It is left front solid
Fixed board, left back fixed plate, right front shoe, right rear fixed plate are mounted in installation valve block；Left mounting blocks are mounted on by bolt
In left front fixed plate and left back fixed plate；Left proportion electro-magnet is threadedly secured on left mounting blocks, left fastening spring installation
On left proportion electro-magnet；Right mounting blocks are mounted on right front shoe and right rear fixed plate by bolt；Right proportion electro-magnet
By being threadably mounted on right mounting blocks, right fastening spring is mounted on right proportion electro-magnet.
Further, which further includes left thrust pickup, right thrust pickup, and left thrust pickup is installed by bolt
On left sliding panel, left thrust pickup is placed in the circular hole of left mounting blocks；Right thrust pickup is mounted on right cunning by bolt
On movable plate, right thrust pickup is placed in the circular hole of right mounting blocks.
Further, which further includes laser displacement sensor, and laser displacement sensor is mounted on left front solid by bolt
On fixed board and left back fixed plate, laser outgoing plane is towards left sliding panel.
Further, which further includes left pressure sensor, right pressure sensor, rear pressure sensor, left temperature sensing
Device and right temperature sensor, left pressure sensor and left temperature sensor pass through inside by being threadably mounted in installation valve block
Aperture is connected with No. 2 runners of valve body；Right pressure sensor and right temperature sensor are led to by being threadably mounted in installation valve block
Internal openings are crossed to be connected with No. 3 runners of valve body；Pressure sensor is connected by being threadably mounted in installation valve block with P chamber afterwards.
A kind of control method of multiple-sensor integration formula intelligent control proportional reversing valve, this method comprises:
When selecting pressure control mode, when selecting No. 2 runners as load oil outlet, left pressure sensor detection channel
Load pressure；When pressure is higher than desired pressure, left proportion electro-magnet operating current is reduced, and spool moves to the left, is reduced logical
Inflow-rate of water turbine, to reduce load pressure；When pressure is lower than desired pressure, left proportion electro-magnet operating current is increased, spool to
Right side is mobile, increases by flow, to improve load pressure；When selecting No. 3 runners as load oil outlet, right pressure is passed
Sensor detection channel load pressure；When pressure is higher than desired pressure, right proportion electro-magnet operating current is reduced, and spool is to the right
It is mobile, it reduces by flow, to reduce load pressure；When pressure is lower than desired pressure, right proportion electro-magnet operating current
It increases, spool moves to the left, increases by flow, to improve load pressure；
When selecting flow control mode, left fastening spring is kept in contact left sliding panel and left push rod with spool；It is elected
When selecting No. 2 runners as load oil outlet, left pressure sensor detection channel load pressure, rear pressure sensor detection is for oil pressure
Power, spool displacement are transmitted to left sliding panel by left push rod, and laser displacement sensor measures left sliding panel and is displaced to obtain spool position
It moves, by two pressure signals of feedback, left temperature sensor signal and displacement signal, the flow of control is calculated；When flow is big
When desired flow rate of, left proportion electro-magnet operating current is reduced, and spool moves to the left, and reduction passes through flow；When flow is less than
When desired flow rate of, left proportion electro-magnet operating current is increased, and spool moves to the right, and increase passes through flow；When No. 3 runners of selection
When as load oil outlet, right pressure sensor detection channel load pressure, rear pressure sensor detects charge oil pressure, spool position
The excessively left push rod of Mobile Communication is transmitted to left sliding panel, and laser displacement sensor measures left sliding panel and is displaced to obtain spool displacement, by anti-
Two pressure signals, right temperature sensor signal and displacement signal are presented, the flow of control is calculated；When flow is greater than desired pressure
When, right proportion electro-magnet operating current reduces, and spool moves to the right, and reduction passes through flow；When flow is less than desired flow rate of,
Right proportion electro-magnet operating current increases, and spool moves to the left, and increase passes through flow.
Beneficial outcomes of the invention are:
(1) valve may be implemented to improve valve to the spool axially loaded and spool axial direction displacement detecting under working condition
The detectability of wick-like state；
(2) valve may be implemented to detect the oil liquid pressure and temperature of two actuator ports, improve valve flow field shape
The perception and detectability of state and hydraulic load situation；
(3) two thrust pickup information and displacement sensor information are combined, hydraulic power suffered by spool, valve can be calculated
Stiction suffered by core can be used for fault detection, realize Autonomous fault perceptional function.
(4) by the feedback to pressure, accurate pressure control function may be implemented；By to valve port pressure, spool displacement
With the feedback of oil liquid temperature, spool displacement can be automatically adjusted, realizes the flow control function unrelated with load and charge oil pressure.
Detailed description of the invention
Fig. 1 is the front view of multiple-sensor integration formula intelligent control proportional reversing valve；
Fig. 2 is the top view of multiple-sensor integration formula intelligent control proportional reversing valve；
Fig. 3 is the cross-sectional view of multiple-sensor integration formula intelligent control proportional reversing valve；
In figure: valve body 1, left proportion electro-magnet 2.1, right proportion electro-magnet 2.2, left centralizing spring 3.1, right centralizing spring
3.2, spool 4, left catch 5.1, right catch 5.2, left block 6.1, right block 6.2, left push rod 7.1, right push rod 7.2, left sealing O
Type circle 8.1, right seal O-ring 8.2, left sliding panel 9.1, right sliding panel 9.2, left thrust pickup 10.1, right thrust pickup
10.2, left mounting blocks 11.1, right mounting blocks 11.2, left fastening spring 12.1, right fastening spring 12.2, left front fixed plate 13.1,
Left back fixed plate 13.2, right front shoe 13.3, right rear fixed plate 13.4, laser displacement sensor 14, left light-duty straight-line guidance
Device 15.1, right light-duty linear guide 15.2, installation valve block 16, left pressure sensor 17.1, right pressure sensor 17.2,
Pressure sensor 17.3, left temperature sensor 18.1 and right temperature sensor 18.2 afterwards.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1-3, a kind of multiple-sensor integration formula intelligent control proportional reversing valve provided in this embodiment, including valve
Body 1, left proportion electro-magnet 2.1, right proportion electro-magnet 2.2, left centralizing spring 3.1, right centralizing spring 3.2, spool 4, left catch
5.1, right catch 5.2, left block 6.1, right block 6.2, left push rod 7.1, right push rod 7.2, left seal O-ring 8.1, right sealing O
Type circle 8.2, left sliding panel 9.1, right sliding panel 9.2, left thrust pickup 10.1, right thrust pickup 10.2, left mounting blocks
11.1, right mounting blocks 11.2, left fastening spring 12.1, right fastening spring 12.2, left front fixed plate 13.1, left back fixed plate
13.2, right front shoe 13.3, right rear fixed plate 13.4, laser displacement sensor 14, left light-duty linear guide 15.1, the right side
Light-duty linear guide 15.2, installation valve block 16, left pressure sensor 17.1, right pressure sensor 17.2, rear pressure sensing
Device 17.3, left temperature sensor 18.1 and right temperature sensor 18.2.
The valve body 1 is bilateral symmetry, and inner hollow is equipped with 5 annular chambers, outermost two rings from left to right
Shape chamber is connected to the valve body 1 by No. 2 runners and No. 3 runners respectively by internal No. 1 runner connection, two intermediate annular chambers
Outside；1 outermost of valve body, two annular chambers and No. 1 runner form T chamber, are used for oil return；Left side annular chamber and No. 2 streams among valve body 1
Road forms A chamber, for providing control oil liquid to side oil circuit；1 right middle annular chamber of valve body and No. 3 runners form B chamber, are used for
Control oil liquid is provided to other side oil circuit；1 central annular chamber of valve body forms P chamber, for receiving system fuel feeding.
The spool 4 is mounted on inside valve body 1；Left catch 5.1 is consistent with 5.2 structure of right catch, and centre is provided with circle
Hole is connected to 4 left and right sides of spool；Left centralizing spring 3.1 and right centralizing spring 3.2 are separately mounted to 5.1 He of left catch
The outside of right catch 5.2；Left block 6.1 and right block 6.2 are located at respectively by being threadably mounted in installation valve block 16
The outside of left centralizing spring 3.1 and right centralizing spring 3.2, to spool 4, left catch 5.1, right catch 5.2, left centralizing spring 3.1
The function of axial restraint is played with right centralizing spring 3.2；It is provided with aperture among left block 6.1 and right block 6.2, has one in aperture
Annular O-ring mounting groove, left seal O-ring 8.1 and right seal O-ring 8.2 are separately mounted to left block 6.1 and right block 6.2
O-ring mounting groove in.
The left push rod 7.1 and right push rod 7.2 are separately mounted in the aperture of left block 6.1 and right block 6.2, left push rod
7.1 one end are in contact by 5.1 centre bore of left catch with spool 4, and the other end is in contact with left sliding panel 9.1, right push rod 7.2 1
End is in contact by 5.2 centre bore of right catch with spool 4, and the other end is in contact with right sliding panel 9.2；Left thrust pickup 10.1
It is mounted on left sliding panel 9.1 by bolt, right thrust pickup 10.2 is mounted on right sliding panel 9.2 by bolt；Left cunning
Movable plate 9.1 is bolted on the sliding block of left light-duty linear guide 15.1, and right sliding panel 9.2 is bolted on
On the sliding block of right light-duty linear guide 15.2；Left light-duty linear guide 15.1 and right light-duty linear guide 15.2
Guide rail be fixed in installation valve block 16, installation valve block 16 is bolted on 1 bottom surface of valve body；Left front fixed plate 13.1,
Left back fixed plate 13.2, right front shoe 13.3, right rear fixed plate 13.4 are mounted in installation valve block 16；Laser displacement sensor
14 are mounted in left front fixed plate 13.1 and left back fixed plate 13.2 by bolt, and laser outgoing plane is towards left sliding panel 9.1；It is left
Mounting blocks 11.1 are mounted in left front fixed plate 13.1 and left back fixed plate 13.2 by bolt, and left thrust pickup 10.1 is wrapped
It is contained in the circular hole in it；Left proportion electro-magnet 2.1 is threadedly secured on left mounting blocks 11.1, and left fastening spring 12.1 is pacified
Between left proportion electro-magnet 2.1 and left thrust pickup 10.1；Right mounting blocks 11.2 are fixed before being mounted on the right side by bolt
On plate 13.3 and right rear fixed plate 13.4, in circular hole that right thrust pickup 10.2 is contained within；Right proportion electro-magnet 2.2
By being threadably mounted on right mounting blocks 11.2, right fastening spring 12.2 is mounted on right proportion electro-magnet 2.2 and right thrust sensing
Between device 10.2；Left pressure sensor 17.1 and left temperature sensor 18.1 are passed through by being threadably mounted in installation valve block 16
Internal openings are connected with No. 2 runners of valve body 1；Right pressure sensor 17.2 and right temperature sensor 18.2 are by being threadably mounted at
In installation valve block 16, it is connected by internal openings with No. 3 runners of valve body 1；Pressure sensor 17.3 is by being threadably mounted at afterwards
In installation valve block, it is connected with P chamber.
Workflow of the invention:
(1) in the case where left fastening spring 12.1 and right fastening spring 12.2 act on, spring force passes through left thrust pickup 10.1
It is acted on left sliding panel 9.1 and right sliding panel 9.2 with right thrust pickup 10.2, so that left push rod 7.1 and right push rod 7.2 paste
Tight spool 4.
(2) proportion electro-magnet must not electricity when, no driving force effect is on spool 4, in left centralizing spring 3.1 and right to being hit by a bullet
Under spring 3.2 acts on, spool 4 is maintained at middle position, and A chamber, B chamber are connected with T chamber in valve body 1；
(3) left proportion electro-magnet 2.1 electric and right proportion electro-magnet 2.2 must not electricity when, armature in left proportion electro-magnet 2.1
Overcome the spring force of right centralizing spring 3.2 and right fastening spring 12.2 that spool 4 is pushed to run to the right, the B chamber and T on 1 right side of valve body
Chamber connection disconnects first, and then the P chamber among valve body 1 is connected to the A chamber in 1 left side of valve body, and oil liquid is from P chamber via A chamber, No. 2 streams
Flow out this valve in road, and system oil liquid flows into T chamber by No. 3 runners, B chamber, then flows out this valve.In the course of work, left thrust
Sensor 10.1 and right thrust pickup 10.2 carry out thrust measurement respectively, by the way that data are made the difference and can effectively be acted on
Stiction and hydraulic power on spool 4, by left sliding panel 9.1, measurement spool 4 is displaced laser displacement sensor 14 indirectly, left
Pressure sensor 17.1 and left temperature sensor 18.1 measure A chamber and No. 2 runner inner fluid pressure and temperatures, right pressure
Sensor 17.2 and right temperature sensor 18.2 measure B chamber and No. 3 runner inner fluid pressure and temperatures.
(4) right proportion electro-magnet 2.2 electric and left proportion electro-magnet 2.1 must not electricity when, armature in right proportion electro-magnet 2.2
Overcome the spring force of left centralizing spring 3.1 and left fastening spring 12.1 that spool 4 is pushed to run to the left, the A chamber and T in 1 left side of valve body
Chamber connection disconnects first, and then the P chamber among valve body 1 is connected to the B chamber on 1 right side of valve body, and oil liquid is from P chamber via B chamber, No. 3 streams
Flow out this valve in road, and system oil liquid flows into T chamber by No. 2 runners, A chamber, then flows out this valve.In the course of work, left thrust
Sensor 10.1 and right thrust pickup 10.2 carry out thrust measurement respectively, by the way that data are made the difference and can effectively be acted on
Stiction and hydraulic power on spool 4, by left sliding panel 9.1, measurement spool 4 is displaced laser displacement sensor 14 indirectly, left
Pressure sensor 17.1 and left temperature sensor 18.1 measure A chamber and No. 2 runner inner fluid pressure and temperatures, right pressure
Sensor 17.2 and right temperature sensor 18.2 measure B chamber and No. 3 runner inner fluid pressure and temperatures.
(5) when selecting pressure control mode, when selecting No. 2 runners as load oil outlet, left pressure sensor 17.1
Detection channel load pressure；When pressure is higher than desired pressure, left 2.1 operating current of proportion electro-magnet is reduced, and spool 4 is to the left
It is mobile, it reduces by flow, to reduce load pressure；When pressure is lower than desired pressure, left proportion electro-magnet 2.1 works electricity
Stream increases, and spool 4 moves to the right, increases by flow, to improve load pressure；When select No. 3 runners as loading out
When hydraulic fluid port, right 17.2 detection channel load pressure of pressure sensor；When pressure is higher than desired pressure, right proportion electro-magnet 2.2
Operating current reduces, and spool 4 moves to the right, reduces by flow, to reduce load pressure；When pressure is lower than desired pressure
When, right 2.2 operating current of proportion electro-magnet increases, and spool 4 moves to the left, increases by flow, to improve load pressure；
When selecting flow control mode, left fastening spring 12.1 protects left sliding panel 9.1 and left push rod 7.1 and spool 4
Hold contact.When selecting No. 2 runners as load oil outlet, left 17.1 detection channel load pressure of pressure sensor, rear pressure
Sensor 17.3 detects charge oil pressure, and the displacement of spool 4 is transmitted to left sliding panel 9.1, laser displacement sensor by left push rod 7.1
The left displacement of sliding panel 9.1 of 14 measurements obtains spool displacement, passes through two pressure signals of feedback, 18.1 signal of left temperature sensor and position
The flow of control is calculated in shifting signal.When flow is greater than desired flow rate of, left 2.1 operating current of proportion electro-magnet is reduced, valve
Core 4 moves to the left, and reduction passes through flow；When flow is less than desired flow rate of, left 2.1 operating current of proportion electro-magnet is increased,
Spool 4 moves to the right, and increase passes through flow；When selecting No. 3 runners as load oil outlet, right pressure sensor 17.2 is examined
Measurement flow channel load pressure, rear pressure sensor 17.3 detect charge oil pressure, and the displacement of spool 4 is transmitted to left cunning by left push rod 7.1
Movable plate 9.1, laser displacement sensor 14 measures the left displacement of sliding panel 9.1 and obtains spool displacement, by feeding back two pressure signals, the right side
18.2 signal of temperature sensor and displacement signal, are calculated the flow of control.When flow is greater than desired pressure, right ratio electricity
2.2 operating current of magnet reduces, and spool 4 moves to the right, and reduction passes through flow；When flow is less than desired flow rate of, right ratio
2.2 operating current of electromagnet increases, and spool 4 moves to the left, and increase passes through flow；
It is finally noted that above description is a kind of specific application example of the invention, can according to need, into
The a variety of proportional reversing valve controls of row and correlation data calculation and processing, it is clear that other application identical with general principles is real
Example also should belong to protection scope of the present invention.
Claims (3)
1. a kind of multiple-sensor integration formula intelligent control proportional reversing valve, it is characterised in that: the valve includes valve body (1), left ratio
Electromagnet (2.1), right proportion electro-magnet (2.2), left centralizing spring (3.1), right centralizing spring (3.2), spool (4), left catch
(5.1), right catch (5.2), left block (6.1), right block (6.2), left push rod (7.1), right push rod (7.2), left sliding panel
(9.1), right sliding panel (9.2), left mounting blocks (11.1), right mounting blocks (11.2), left fastening spring (12.1), right fastening spring
(12.2), left front fixed plate (13.1), left back fixed plate (13.2), right front shoe (13.3), right rear fixed plate (13.4), a left side
Light-duty linear guide (15.1), right light-duty linear guide (15.2) and installation valve block (16)；
The valve body (1) is bilateral symmetry, and inner hollow is equipped with 5 annular chambers, outermost two annulars from left to right
Chamber is connected to the valve body (1) by No. 2 runners and No. 3 runners respectively by internal No. 1 runner connection, two intermediate annular chambers
Outside；Two annular chambers of valve body (1) outermost and No. 1 runner form T chamber, are used for oil return；The intermediate left side annular chamber and 2 of valve body (1)
Number runner forms A chamber, for providing control oil liquid to side oil circuit；Valve body (1) right middle annular chamber and No. 3 runners form B
Chamber, for providing control oil liquid to other side oil circuit；Valve body (1) central annular chamber forms P chamber, for receiving system fuel feeding；
It is internal that the spool (4) is mounted on valve body (1)；Left catch (5.1) is consistent with right catch's (5.2) structure, and centre is provided with
Round hole is connected at left and right sides of spool (4)；Left centralizing spring (3.1) and right centralizing spring (3.2) are separately mounted to a left side
The outside of baffle (5.1) and right catch (5.2)；Left block (6.1) and right block (6.2) are separately mounted to installation valve block (16)
On, and it is located at the outside of left centralizing spring (3.1) and right centralizing spring (3.2), to spool (4), left catch (5.1), the right side
Baffle (5.2), left centralizing spring (3.1) and right centralizing spring (3.2) play the function of axial restraint；Left block (6.1) and right gear
It is provided with aperture among block (6.2), left push rod (7.1) and right push rod (7.2) are separately mounted to left block (6.1) and right block
(6.2) in aperture, left push rod (7.1) one end is in contact by left catch (5.1) centre bore with spool (4), the other end and a left side
Sliding panel (9.1) is in contact, and right push rod (7.2) one end is in contact by right catch's (5.2) centre bore with spool (4), the other end
It is in contact with right sliding panel (9.2)；Left sliding panel (9.1) is fixed on the sliding block of left light-duty linear guide (15.1), right
Sliding panel (9.2) is fixed on the sliding block of right light-duty linear guide (15.2)；Left light-duty linear guide (15.1) and
The guide rail of right light-duty linear guide (15.2) is fixed on installation valve block (16), and installation valve block (16) is fixed on valve body (1)
On bottom surface；Left front fixed plate (13.1), left back fixed plate (13.2), right front shoe (13.3), right rear fixed plate (13.4) peace
On installation valve block (16)；Left mounting blocks (11.1) are mounted in left front fixed plate (13.1) and left back fixed plate (13.2)；
Left proportion electro-magnet (2.1) is fixed on left mounting blocks (11.1), and left fastening spring (12.1) is mounted on left proportion electro-magnet
(2.1) on；Right mounting blocks (11.2) are mounted on right front shoe (13.3) and right rear fixed plate (13.4)；Right proportion electro-magnet
(2.2) it is mounted on right mounting blocks (11.2), right fastening spring (12.2) is mounted on right proportion electro-magnet (2.2)；
The valve further includes left thrust pickup (10.1), right thrust pickup (10.2), and left thrust pickup (10.1) is mounted on
On left sliding panel (9.1), left thrust pickup (10.1) is placed in the circular hole of left mounting blocks (11.1)；Right thrust pickup
(10.2) it is mounted on right sliding panel (9.2), right thrust pickup (10.2) is placed in the circular hole of right mounting blocks (11.2)；The valve
It further include laser displacement sensor (14), laser displacement sensor (14) is mounted on left front fixed plate (13.1) and left back fixed plate
(13.2) on, laser outgoing plane is towards left sliding panel (9.1)；
The valve further includes left pressure sensor (17.1), right pressure sensor (17.2), rear pressure sensor (17.3), Zuo Wendu
Sensor (18.1) and right temperature sensor (18.2), left pressure sensor (17.1) and left temperature sensor (18.1) are mounted on
In installation valve block (16), it is connected by internal openings with No. 2 runners of valve body (1)；Right pressure sensor (17.2) and right temperature
Sensor (18.2) is mounted on installation valve block (16), is connected by internal openings with No. 3 runners of valve body (1)；Pressure passes afterwards
Sensor (17.3) is mounted on installation valve block (16), is connected with P chamber.
2. a kind of multiple-sensor integration formula intelligent control proportional reversing valve according to claim 1, it is characterised in that: the valve
Further include left seal O-ring (8.1), right seal O-ring (8.2), has one in the aperture of left block (6.1) and right block (6.2)
Annular O-ring mounting groove, left seal O-ring (8.1) and right seal O-ring (8.2) are separately mounted to left block (6.1) and right gear
In the O-ring mounting groove of block (6.2).
3. a kind of control method of multiple-sensor integration formula intelligent control proportional reversing valve described in claim 1, feature exist
In: when selection pressure control mode, when selecting No. 2 runners as load oil outlet, left pressure sensor (17.1) detection stream
Road load pressure；When pressure is higher than desired pressure, left proportion electro-magnet (2.1) operating current is reduced, spool (4) sidesway to the left
It is dynamic, it reduces by flow, to reduce load pressure；When pressure is lower than desired pressure, left proportion electro-magnet (2.1) work electricity
Stream increases, and spool (4) moves to the right, increases by flow, to improve load pressure；When select No. 3 runners as load
When oil outlet, right pressure sensor (17.2) detection channel load pressure；When pressure is higher than desired pressure, right proportion electro-magnet
(2.2) operating current reduces, and spool (4) moves to the right, reduces by flow, to reduce load pressure；When pressure is lower than
When desired pressure, right proportion electro-magnet (2.2) operating current is increased, and spool (4) moves to the left, is increased through flow, thus
Improve load pressure；
When selecting flow control mode, left fastening spring (12.1) makes left sliding panel (9.1) and left push rod (7.1) and spool
(4) it is kept in contact；When selecting No. 2 runners as load oil outlet, left pressure sensor (17.1) detection channel load pressure,
Pressure sensor (17.3) detects charge oil pressure afterwards, and spool (4) displacement is transmitted to left sliding panel (9.1) by left push rod (7.1),
Laser displacement sensor (14) measures left sliding panel (9.1) displacement and obtains spool displacement, by feeding back two pressure signals, Zuo Wendu
Sensor (18.1) signal and displacement signal, are calculated the flow of control；When flow is greater than desired flow rate of, left ratio electromagnetism
Iron (2.1) operating current reduces, and spool (4) moves to the left, and reduction passes through flow；When flow is less than desired flow rate of, left ratio
Example electromagnet (2.1) operating current increases, and spool (4) moves to the right, and increase passes through flow；When select No. 3 runners as negative
When setting out hydraulic fluid port, right pressure sensor (17.2) detection channel load pressure, rear pressure sensor (17.3) detects charge oil pressure,
Spool (4) displacement is transmitted to left sliding panel (9.1) by left push rod (7.1), and laser displacement sensor (14) measures left sliding panel
(9.1) displacement obtains spool displacement, passes through two pressure signals of feedback, right temperature sensor (18.2) signal and displacement signal, meter
Calculate the flow controlled；When flow is greater than desired pressure, right proportion electro-magnet (2.2) operating current is reduced, spool (4) to
Right side is mobile, and reduction passes through flow；When flow is less than desired flow rate of, right proportion electro-magnet (2.2) operating current is increased, spool
(4) it moves to the left, increase passes through flow.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810786743.4A CN108679026B (en) | 2018-07-17 | 2018-07-17 | A kind of multiple-sensor integration formula intelligent control proportional reversing valve and its control method |
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| CN201810786743.4A CN108679026B (en) | 2018-07-17 | 2018-07-17 | A kind of multiple-sensor integration formula intelligent control proportional reversing valve and its control method |
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| CN108679026B true CN108679026B (en) | 2019-05-17 |
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| CN111306143B (en) * | 2020-04-08 | 2022-01-18 | 上海诺玛液压系统有限公司 | Intelligent calibration device and method for steady-state hydraulic power of proportional valve spool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2271625B (en) * | 1992-10-19 | 1996-07-03 | Dana Corp | A fluid control valve having a pressure compensator assembly |
| JP4003218B2 (en) * | 1998-05-29 | 2007-11-07 | Ｓｍｃ株式会社 | Electro-pneumatic proportional differential pressure control valve |
| JP2002106508A (en) * | 2000-09-29 | 2002-04-10 | Komatsu Ltd | Flow directional control valve |
| CN2511817Y (en) * | 2001-12-29 | 2002-09-18 | 四川三洲液压驱动技术有限公司 | High-speed digital control and digital feedback valve |
| CN104454747B (en) * | 2014-12-05 | 2017-01-04 | 浙江大学 | A kind of novel high-frequency using double 3-position-3-way proportioning valve structure rings pilot valve |
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