CN107288953A - The servo-cylinder performance test methods and its test system of a kind of adaptive damping - Google Patents
The servo-cylinder performance test methods and its test system of a kind of adaptive damping Download PDFInfo
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- CN107288953A CN107288953A CN201610196467.7A CN201610196467A CN107288953A CN 107288953 A CN107288953 A CN 107288953A CN 201610196467 A CN201610196467 A CN 201610196467A CN 107288953 A CN107288953 A CN 107288953A
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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
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Abstract
The servo-cylinder performance test methods and system of adaptive damping, including step：1) damping ratio of AGC (Automatic Gage Control) servo-cylinder rolling machine system is collected：ξh；2) middle spacer is set, the Coulomb friction damped coefficient between hydraulic pressure side stay plate and middle spacer in Load test framework is collected：C0, collect loading damping hydraulic cylinder parameter：D1/d1‑l1；3) pressure value of initial electromagnetic proportional pressure-reducing valve is set：P0；4) the Coulomb friction damping force between middle spacer and side stay plate is calculated：Ff0；5) damping ratio of identification and test system：ξ0；6) pressure of solenoid-operated proportional pressure-reducing valve is changed：P1, then identification and test system damping ratio：ξ1；7) repeat step 6), the damping ratio of identification and test system is：ξi；8) the damping ratio ξ of test system is comparediWith the damping ratio ξ of rolling machine systemh；9) pressure value P of now solenoid-operated proportional pressure valve is calculatedi：10) solenoid-operated proportional pressure-reducing valve pressure value is adjusted：Ph, i.e. so that the damping ratio ξ of test systemiWith the damping ratio ξ of rolling machine systemhIt is equal, then quiet, dynamic performance testing is carried out to AGC servo-cylinders.The present invention is easy to operate, and measuring accuracy is high.
Description
Technical field
The present invention relates to hydraulic servo oil cylinder testing field, especially, it is applied to the present invention relates to one kind to strip-mill strip hydraulic pressure pressure
Method of testing and its test system that static state and dynamic property lower or that push to servo-cylinder are tested.
Background technology
The present invention relates to online static, the dynamic testing method, the strip-mill strip thickness for the metallurgy industry that is particularly suitable for use in of hydraulic test
Automatically control AGC (Automatic Gage Control) system hydraulic pressings or push to the dynamic and static test of servo-cylinder.Inspection
Rope word includes hydraulic cylinder (Hydraulic cylinder), test (Test).
In modern steel rolling equipment, the regulation of the roll gap of milling train is completed using Hydrauservo System.Hydraulic efficiency servo-valve oil cylinder
It is one of key element of rolling mill screwdown Hydrauservo System, the quality of its performance directly affects the normal work of Hydrauservo System,
So as to finally influence the quality of Strip.The existing test for rolling mill AGC being depressed or being pushed to servo-cylinder mainly includes static survey
Examination and dynamic two aspects of test, static test mainly including the internal leakage of servo-cylinder, external leakage, band loading friction force, open
The indexs such as dynamic pressure, the main test of frequency range including servo-cylinder of dynamic test etc..
In the test process of servo-cylinder, during such as test of band loading friction force and dynamic test, often by AGC
Servo-cylinder is placed in the Load test framework of a closing, is loaded by Load test framework to AGC servo-cylinders.Generally, exist
During AGC servo-cylinders are tested, in order to ensure tip contact that the extension bar of servo-cylinder can be with Load test framework, generally
A middle spacer is put between servo-cylinder and loading price markup to ensure the close contact between them, the height of middle spacer
Changed according to the specification of servo-cylinder difference.However, in the test process of AGC servo-cylinders, the damping of test system
Accuracy when size is to performance and the test of system has a great impact, and is a very important parameter.And existing right
In the test of AGC servo-cylinders, the damping of test system is substantially an invariant, can not be according to servo hydraulic cylinder specification
Difference and changes, and the damping of the servo-cylinder of different milling train operationally is different, so operating mode and servo when testing
Operating mode during cylinder efficient is different, and this just causes very big influence to the test result of servo-cylinder.
Therefore, the problem of existing for the above to the method for testing of AGC servo-cylinders, in combination with rolling mill AGC servo-cylinder
The test process of working site, this neighborhood needs a kind of AGC servo-cylinder method of testings of variable-metric system damping.It is described to survey
Method for testing can be according to the damping ratio size of the rolling machine system of tested AGC oil cylinders real work, to set the damping ratio of test system
It is equal with the damping ratio of real work rolling machine system, so as to ensure the operating mode that operating mode during test works with actual oil cylinder in milling train
With uniformity, that is, ensure the damping ratio of test system and the damping ratio of rolling machine system with it is equal.This ensures that test result
Accuracy and practicality, save very big equipment investment to enterprise, bring huge economic benefit.
The content of the invention
For problem present in the existing test process to AGC servo-cylinders, reality of the present invention in combination with working site
A kind of test process, it is proposed that AGC servo-cylinder test process for different size, can change test system as needed
A kind of AGC servo-cylinders method of testing of damping, it is ensured that the damping ratio of test system and the damping ratio of rolling machine system with it is equal, both
The accuracy and practicality of test result are can guarantee that, and very big oil cylinder test equipment investment can be saved, significant economy can be brought
Benefit.
A kind of easy to operate, automaticity of present invention offer is high, the high and as needed dynamic debugging system friction resistance of measuring accuracy
The equal test philosophy of damping ratio when Buddhist nun is to make damping ratio during test with real work and method of testing.
In order to realize foregoing invention purpose, the servo-cylinder performance test methods of adaptive damping of the invention use following technical scheme：
The servo-cylinder performance test methods of a kind of adaptive damping, it is adaptable to which AGC servo-cylinders dynamic and static characteristic test system
System can dynamically change the test of test system damping, and using such a test system, the test system mainly includes：AGC
Servo-cylinder loading system, Hydrauservo System, signal acquisition and processing system, it is characterised in that the method for testing includes
Step is as follows：
Step 1) collect AGC servo-cylinder real work rolling machine systems damping ratio：ξh(0<ξh<1.0)；
Step 2) set be connected between oil cylinder and test chassis, the middle spacer for transmitting loading force, collect loading
Coulomb friction damped coefficient in frame between hydraulic pressure side stay plate and middle spacer：C0(0<C0<1.0) loading damping force hydraulic, is collected
The specifications parameter of cylinder：D1/d1-l1；(D1, d1, l1Represent respectively the loading piston diameter of damping hydraulic cylinder, diameter of piston rod,
Piston range, unit：m)
Step 3) by industrial computer, signal processing system according to operating mode set the pressure value of initial electromagnetic proportional pressure-reducing valve as：
P0(P0<Test system maximum working pressure)；
Step 4) calculate the area for loading damping hydraulic cylinder rodless cavity：
Calculate the Coulomb friction damping force (unit between middle spacer and side stay plate：Newton N)：
Ff0=P0×A0×C0(2)；
(A0Represent the area of loading damping hydraulic cylinder rodless cavity, unit：m2)
Step 5) corresponding signal is sent to servo valve using testing signal process system, the servo-cylinder of acquisition system is lived
Displacement, pressure signal are filled in, according to the experimental data of collection, the method that System Discrimination is used to test system, identification is now (electric
Magnetic proportional pressure-reducing valve pressure is P0) test system damping ratio：ξ0；
Step 6) further, the pressure for changing solenoid-operated proportional pressure-reducing valve is：P1(unit：Pa), in calculating now
Between Coulomb friction damping force suffered by cushion block：Ff1(unit：N), the reality of test system is picked out again with the method for System Discrimination
Border damping ratio：ξ1；
Step 7) repeat step 6), test out a series of pressure of solenoid-operated proportional pressure-reducing valves：Pi, and its corresponding coulomb
Friction damping force Ffi, identification actual test system damping ratio be：ξi；
Step 8) compare the damping ratio ξ of test systemiWith the damping ratio ξ of actual rolling machine systemh, until ξhWith ξiUntil ξhWith ξi
Relative deviation in the range of the setting untill, i.e.,(it can use here)；
Step 9) pass through the test system damping ratio ξ that has measurediWith Coulomb friction damping force FfiRelation extrapolate test system
System damping ratio is ξhWhen, the size of corresponding Coulomb friction damping force is：Ffh, Extrapolation goes out now solenoid-operated proportional pressure valve
Pressure value：
Step 10) adjustment solenoid-operated proportional pressure-reducing valve pressure value be：Ph(Ph<Test system maximum working pressure), even if surveying
The damping ratio of test system is equal with the damping ratio of real work rolling machine system, then carries out static and dynamic to AGC servo-cylinders again
Performance test.
According to a kind of servo-cylinder performance test methods of adaptive damping of the present invention, it is characterised in that
In step 1), because the damping ratio theoretical calculation of real work rolling machine system often has very big error with actual value, to obtain
The damping ratio of real work rolling machine system is taken, the damping of actual rolling machine system is determined using the method for System Discrimination here
Than：ξh。
3. in step 8), if the damping ratio ξ of actual rolling machine systemhWith the damping ratio ξ of test systemiRelative deviation is in the smaller of setting
In the range of, then stop identification and test system damping ratio ξi；If ξhWith ξiRelative deviation then continues to repeat to walk not in the range of setting
It is rapid 7), until ξhWith ξiUntill relative deviation is in the range of the setting.
According to a kind of servo-cylinder performance test methods of adaptive damping of the present invention, it is characterised in that
In step 10) after, the test to different AGC servo-cylinders can then realize the damping ratio and reality of test system
The damping ratio of work rolling machine system is equal, so makes test system realization for the AGC servo-cylinder adaptive dampings of different size
Effect.
The servo-cylinder Performance Test System of a kind of adaptive damping, it is adaptable to which AGC servo-cylinders dynamic and static characteristic test system
System can dynamically change the test of test system damping, and the test system includes：AGC servo-cylinders loading system, hydraulic servo
System, signal acquisition and processing system, it is characterised in that
Described loading system includes：Loading damping hydraulic cylinder 7, the middle spacer be arranged in Load test framework 11, sequentially set
10th, side stay plate 13, and AGC servo-cylinders 12 positioned at the bottom of middle spacer 10 etc.,
The Hydrauservo System provides power source for AGC servo-cylinders, servo-cylinder extension bar is stretched out or is retracted, by adding
The frictional resistance suffered by test system can be changed by carrying damping hydraulic cylinder and middle spacer load.
According to a kind of servo-cylinder Performance Test System of adaptive damping of the present invention, it is characterised in that
The Load test framework is the Load test framework of enclosed, provides loading force for AGC servo-cylinders, makes servo-cylinder with load
Operating mode under tested,
The Hydrauservo System provides power source for servo-cylinder, and the automatically controlled signal of test system is transformed into by Hydrauservo System
The hydraulic pressure signal of Hydrauservo System, to control the adjustment of each pressure of the action and system of servo-cylinder,
The Hydrauservo System includes：Hydraulic pump 1, overflow valve 2, electrohydraulic servo valve 6, solenoid-operated proportional overflow pressure-reducing valve 5,
Solenoid-operated proportional pressure-reducing valve 3, three-position four-way electromagnetic directional valve 4,
The electric signal that signal processing system is sent is transformed into hydraulic pressure signal to control the position of servo-cylinder by described electrohydraulic servo valve 6
Move and pressure size, be allowed to form closed-loop control system.
According to a kind of servo-cylinder Performance Test System of adaptive damping of the present invention, it is characterised in that
Described AGC servo-cylinders rod chamber inputs the hydraulic pressure value of a fixation pressure, and the pressure of servo-cylinder rod chamber is big
It is small to be set, adjusted by solenoid proportional pressure reducing and relief valve 5,
The pressure of described hydraulic damping loading hydraulic cylinder enters Mobile state setting, adjustment by solenoid-operated proportional pressure-reducing valve 3, so resistance
The change of Buddhist nun's power size is also to be controlled by solenoid-operated proportional pressure-reducing valve,
The loading and unloading process of the loading damping hydraulic cylinder is controlled by three-position four-way electromagnetic directional valve 4, and its control signal is led to
Signal processing system is crossed to give,
The system pressure value of whole Hydrauservo System is adjusted by overflow valve 2, and hydraulic pump 1 is for needed for system offer system
Pressure and flow.
According to a kind of servo-cylinder Performance Test System of adaptive damping of the present invention, it is characterised in that
The signal acquisition and processing system include：Pressure sensor 8, magnetic scale 9, signal acquisition and processing system, industrial computer
Deng.Further, it is characterized in that the pressure of acquisition system, displacement signal, signal processing system amplifies signal, computing, so
The command signal of correlation is sent to hydraulic control valve afterwards.
Described loading system is it is characterized in that it mainly includes：Load test frameworkLoad damping hydraulic cylinder 7., middle spacer 10.,
Side stay plateAGC servo-cylindersDeng further, it is characterised in that Hydrauservo System provides for AGC servo-cylinders
Power source, makes servo-cylinder extension bar stretch out or retract, the Load test framework of enclosed provides loading force for AGC servo-cylinders, made
Servo-cylinder is tested under the operating mode with load.Damping hydraulic cylinder is loaded it is characterized in that by being loaded to middle spacer
So as to provide variable damping force during test for test system, finally make the damping ratio of test system and the damping of real work milling train
Than equal.
Described Hydrauservo System it is characterized in that it include hydraulic pump 1., overflow valve 2., electrohydraulic servo valve 6., solenoid-operated proportional overflows
Flow pressure-reducing valve 5., solenoid-operated proportional pressure-reducing valve 3., three-position four-way electromagnetic directional valve 4. etc., further, be further characterized in that hydraulic pressure
Servo-drive system provides power source for servo-cylinder, and the automatically controlled signal of test system is transformed into Hydrauservo System by Hydrauservo System
Hydraulic pressure signal, to control the adjustment of each pressure of the action and system of servo-cylinder.Described electrohydraulic servo valve is 6. by signal
The electric signal that reason system is sent is transformed into hydraulic pressure signal to control displacement and the pressure size of servo-cylinder, is allowed to form closed-loop control
System.Described AGC servo-cylinders rod chamber inputs the hydraulic pressure value of a fixation pressure, the pressure of servo-cylinder rod chamber
5. size is set by solenoid proportional pressure reducing and relief valve, is adjusted.
3. the pressure of described hydraulic damping loading hydraulic cylinder enter Mobile state setting, adjustment by solenoid-operated proportional pressure-reducing valve, so resistance
The change of Buddhist nun's power size is also to be controlled by solenoid-operated proportional pressure-reducing valve.The loading and unloading process of hydraulic damping loading hydraulic cylinder is led to
Cross three-position four-way electromagnetic directional valve 4. to control, its control signal is given by signal processing system.Entirely Hydrauservo System is
2. system pressure value is adjusted by overflow valve, and hydraulic pump is 1. for the pressure and flow needed for system offer system.
Described signal acquisition and processing system is it is characterized in that it includes：Pressure sensor 8., magnetic scale 9., signal acquisition and processing
System, industrial computer etc..Further, it is characterized in that the pressure of acquisition system, displacement signal, signal processing system put signal
Greatly, computing, then sends the command signal of correlation to hydraulic control valve.
For AGC servo-cylinders dynamic, in static test the problem of, the present invention can according to the difference of test servo-cylinder come
Change the damping ratio size of test system, so that AGC servo-cylinders can be according to measurement condition and work milling train in test process
The different sizes for changing damping, so as to can more show out the real performance characteristic of AGC servo-cylinders, make AGC servo-cylinders
Static state and dynamic property test result it is more accurate.The achievement of the present invention, can improve the accuracy of test result, for enterprise
Industry saves more testing costs, and huge economic benefit is also brought for enterprise.
Brief description of the drawings
Fig. 1 is a kind of servo-cylinder Performance Test System schematic diagram of adaptive damping of the present invention.
Fig. 2 is hydraulic damping loading hydraulic cylinder, the side stay plate of a kind of servo-cylinder Performance Test System of adaptive damping of the present invention
With the type of attachment schematic diagram of Load test framework.
In figure, 1 is hydraulic pump, and 2 be overflow valve, and 3 be solenoid-operated proportional pressure-reducing valve, and 4 be three-position four-way electromagnetic directional valve, and 5 are
Solenoid-operated proportional overflow pressure-reducing valve, 6 be electrohydraulic servo valve, and 7 is are arranged at the hydraulic damping loading hydraulic cylinder in Load test framework 11,
8 be pressure sensor, and 9 be magnetic scale, and 10 be middle spacer, and 11 be Load test framework, and 12 be positioned at the bottom of middle spacer 10
AGC servo-cylinders, 13 be side stay plate.
Embodiment
Embodiment
In order to further illustrate the application process of the technology of the present invention, by taking the test of the AGC servo-cylinders of a certain specification as an example, in detail
The thin method of testing for introducing AGC servo-cylinder adaptive dampings：
A) in mutative damp loading system, side stay plate is provided with a kind of type of attachment of hydraulic damping loading hydraulic cylinder and test chassis as schemed
(this form is not limited to shown in 2)：
B) the hydraulic damping ratio of AGC servo-cylinders work rolling machine system is collected：ξh；
B1) often there is very big error in the damping ratio theoretical calculation of real work rolling machine system with actual value, so, in order to obtain
The damping ratio of real work system, determines the damping ratio of actual rolling machine system using the method for System Discrimination here：
ξh=0.52；
C) the frictional damping coefficient in Load test framework between hydraulic pressure side stay plate and middle spacer is collected：C0=0.3, collect hydraulic damping and add
The specifications parameter piston diameter D of carrier fluid cylinder pressure1, diameter of piston rod d1, piston range l1：
B1 the area of loading damping hydraulic cylinder rodless cavity) is calculated：
D) by industrial computer, signal processing system according to operating mode set the pressure value of initial proportion pressure-reducing valve 3. as：P0=3.0 ' 106Pa；
E) the Coulomb friction damping force between middle spacer and side stay plate is calculated：
Ff0=P0×A0×C0=3 × 106× 0.00785 × 0.3=7.065 × 103N (5)
F) signal, the displacement of acquisition system, force signal, according to the experiment number of collection are sent to servo valve using testing signal process system
According to by the method for System Discrimination, picking out test system now (pressure P0=3.0 ' 106Pa damping ratio)：ξ0=0.3；
G) further, the pressure of scaling up pressure-reducing valve 3. is：P1=4.0 ' 106Pa, calculates coulomb now suffered by middle spacer
Friction damping force is：Ff1=9.420 × 103N, the actual damping of test system is picked out with the method for System Discrimination again
Than for：ξ1=0.45；
H) f) step is repeated, a series of pressure of proportional pressure-reducing valves 3. is measured：P2=5.0 ' 106Pa, and its corresponding Coulomb friction resistance
Buddhist nun's power Ff2=11.775 × 103, identification actual test system damping ratio：ξi=0.55；
I) the damping ratio ξ of test system is comparediWith the damping ratio ξ of actual rolling machine systemh=0.52, the damping ratio ξ of actual rolling machine systemhWith
The damping ratio ξ of test systemi=0.55 difference then stops identification and test system damping ratio ξ in the range of the 5.0% of settingi；
J) the test system damping ratio ξ by having measurediWith Coulomb friction damping force FfiRelation extrapolate test system damping ratio for ξh
When, the size of corresponding Coulomb friction damping force is：Ffh≈11.3×103N, Extrapolation goes out now that proportional pressure valve is 3.
Pressure value be：
K) 3. pressure value is adjustment proportional pressure-reducing valve：Ph=4.8 ' 106Pa, even if the damping ratio of test system and real work rolling machine system
Damping ratio it is equal.
L) to the test of different AGC servo-cylinders, then it can realize that test system damping ratio is equal with the damping ratio of real work milling train,
So test system realizes the effect of adaptive damping, is that the test result of servo-cylinder is consistent with real work operating mode.
AGC servo-cylinders are tested according to scene, technical scheme is practical, and achieve significant effect,
Can further genralrlization into the test of AGC servo-cylinder performances, popularizing application prospect is than broader.
Claims (8)
1. a kind of servo-cylinder performance test methods of adaptive damping, it is adaptable to AGC (Automatic Gage Control)
Servo-cylinder dynamic and static characteristic test system can dynamically change the test of test system damping, using such a test
System, the test system mainly includes：AGC servo-cylinders loading system, Hydrauservo System, signal acquisition and place
Reason system, it is characterised in that it is as follows that the method for testing includes step：
Step 1) collect AGC servo-cylinders and work the damping ratio of rolling machine system：ξh(0<ξh<1.0)；
Step 2) set be connected between oil cylinder and test chassis, the middle spacer for transmitting loading force, collect
Coulomb friction damped coefficient in Load test framework between hydraulic pressure side stay plate and middle spacer
：C0(0<C0<1.0) specifications parameter of loading damping hydraulic cylinder, is collected：D1/d1/l1；(D1, d1, l1Respectively
Represent the piston diameter, diameter of piston rod, piston range, unit of loading damping hydraulic cylinder：m)
Step 3) by industrial computer, signal processing system according to operating mode set initial electromagnetic proportional pressure-reducing valve pressure
It is worth and is：P0(P0<Test system maximum working pressure)；
Step 4) calculate the area for loading damping hydraulic cylinder rodless cavity：
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Calculate the Coulomb friction damping force F between middle spacer and side stay platef0(unit：Newton N)：
Ff0=P0×A0×C0(2)；
(A0Represent the area of loading damping hydraulic cylinder rodless cavity, unit m2)
Step 5) corresponding signal is sent to servo valve using testing signal process system, the servo-cylinder of acquisition system is lived
Displacement, pressure signal are filled in, according to the experimental data of collection, the method that System Discrimination is used to test system, identification is now
(solenoid-operated proportional pressure-reducing valve pressure is P0) test system damping ratio：ξ0；
Step 6) further, change the pressure (unit of solenoid-operated proportional pressure-reducing valve：Pa) it is：P1, in calculating now
Between Coulomb friction damping force suffered by cushion block, unit：N)：Ff1, pick out test system again with the method for System Discrimination
The actual damping ratio of system：ξ1；
Step 7) repeat step 6), test out a series of pressure of solenoid-operated proportional pressure-reducing valves：Pi, and its corresponding coulomb
Friction damping force Ffi, identification and test system damping ratio be：ξi；
Step 8) compare the damping ratio ξ of test systemiWith the damping ratio ξ of actual rolling machine systemh, until ξhWith ξiPhase
To deviation in the range of the setting untill, i.e.,(it can use here)；
Step 9) pass through the test system damping ratio ξ that has measurediWith Coulomb friction damping force FfiRelation extrapolate survey
Test system damping ratio is ξhWhen, the size of corresponding Coulomb friction damping force is：Ffh, Extrapolation goes out now solenoid-operated proportional
The pressure value of pressure valve：
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Step 10) solenoid-operated proportional pressure-reducing valve pressure value is adjusted for (Ph<Test system maximum working pressure)：Ph, i.e.,
Make the damping ratio of test system equal with the damping ratio of real work rolling machine system, then AGC servo-cylinders are carried out again
Static and dynamic performance test.
2. a kind of servo-cylinder performance test methods of adaptive damping as claimed in claim 1, it is characterised in that
In step 1), because often there is very big error with actual value in the damping ratio theoretical calculation of real work rolling machine system,
To obtain the damping ratio of real work rolling machine system, actual rolling machine system is determined using the method for System Discrimination here
Damping ratio：ξh。
3. in step 8), if the damping ratio ξ of actual rolling machine systemhWith the damping ratio ξ of test systemiRelative deviation setting
In fixed smaller range, then stop identification and test system damping ratio ξi；If ξhWith ξiRelative deviation not in the scope of setting
It is interior, then continue repeat step 7), until ξhWith ξiRelative deviation in the range of the setting untill.
4. a kind of servo-cylinder performance test methods of adaptive damping as claimed in claim 1, it is characterised in that
In step 10) after, the test to different AGC servo-cylinders can then realize the damping of test system
It is more equal than with the damping ratio of real work rolling machine system, test system is realized the AGC servos for different size
The effect of oil cylinder adaptive damping.
5. the servo-cylinder Performance Test System of a kind of adaptive damping, it is adaptable to which AGC servo-cylinders dynamic and static characteristic are surveyed
Test system can dynamically change the test of test system damping, and the test system includes：AGC servo-cylinders loading system,
Hydrauservo System, signal acquisition and processing system, it is characterised in that
Described loading system includes：It is arranged at interior Load test framework 11, the loading damping hydraulic cylinder 7 of order setting, centre
Cushion block 10, side stay plate 13, and AGC servo-cylinders 12 positioned at the bottom of middle spacer 10 etc.,
The Hydrauservo System provides power source for AGC servo-cylinders, servo-cylinder extension bar is stretched out or is retracted,
Middle spacer is carried out as loading damping hydraulic cylinder to load the frictional resistance suffered by can changing test system.
6. a kind of servo-cylinder Performance Test System of adaptive damping as claimed in claim 5, it is characterised in that
The Load test framework is the Load test framework of enclosed, provides loading force for AGC servo-cylinders, makes servo-cylinder in band
Tested under the operating mode for having load,
The Hydrauservo System provides power source for servo-cylinder, and Hydrauservo System turns the automatically controlled signal of test system
Become the hydraulic pressure signal of Hydrauservo System, to control the adjustment of each pressure of the action and system of servo-cylinder,
The Hydrauservo System includes：Hydraulic pump 1, overflow valve 2, electrohydraulic servo valve 6, solenoid-operated proportional overflow pressure-reducing valve
5th, solenoid-operated proportional pressure-reducing valve 3, three-position four-way electromagnetic directional valve 4,
The electric signal that signal processing system is sent is transformed into hydraulic pressure signal to control servo-cylinder by described electrohydraulic servo valve 6
Displacement and pressure size, be allowed to form closed-loop control system.
7. a kind of servo-cylinder Performance Test System of adaptive damping as claimed in claim 5, it is characterised in that
Described AGC servo-cylinders rod chamber inputs the hydraulic pressure value of a fixation pressure, servo-cylinder rod chamber
Pressure size is set by solenoid proportional pressure reducing and relief valve 5, adjusted,
The pressure of described hydraulic damping loading hydraulic cylinder enters Mobile state setting, adjustment, institute by solenoid-operated proportional pressure-reducing valve 3
Change with damping force size is also to be controlled by solenoid-operated proportional pressure-reducing valve,
The loading and unloading process of the loading damping hydraulic cylinder is controlled by three-position four-way electromagnetic directional valve 4, and it controls letter
It is number given by signal processing system,
The system pressure value of whole Hydrauservo System is adjusted by overflow valve 2, and hydraulic pump 1 provides system for system
Required pressure and flow.
8. a kind of servo-cylinder Performance Test System of adaptive damping as claimed in claim 5, it is characterised in that
The signal acquisition and processing system include：Pressure sensor 8, magnetic scale 9, signal acquisition and processing system, industry control
Machine etc..Further, it is characterized in that signal is amplified, transported by the pressure of acquisition system, displacement signal, signal processing system
Calculate, the command signal of correlation is then sent to hydraulic control valve.
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