CN109799764A - Hydraulic servo execution system test analysis device and method - Google Patents
Hydraulic servo execution system test analysis device and method Download PDFInfo
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- CN109799764A CN109799764A CN201910105685.9A CN201910105685A CN109799764A CN 109799764 A CN109799764 A CN 109799764A CN 201910105685 A CN201910105685 A CN 201910105685A CN 109799764 A CN109799764 A CN 109799764A
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- 238000012360 testing method Methods 0.000 title claims abstract description 151
- 238000004458 analytical method Methods 0.000 title claims abstract description 25
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- 238000006073 displacement reaction Methods 0.000 claims description 21
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- 238000012545 processing Methods 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
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- 239000008358 core component Substances 0.000 description 1
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Abstract
The invention discloses a test analysis device and a test analysis method for a hydraulic servo execution system, which comprise a mainboard, a touch screen and a shell, wherein the mainboard and the touch screen are arranged in the shell; the shell comprises an upper cover and a bottom cover, the touch screen is arranged on the back face of the upper cover through the screen pressing plate, and the mainboard is arranged on the back face of the screen pressing plate. The invention realizes the integration and the portability of the test of the servo system, the test can be carried out on site, the automatic program control test is realized, and the professional requirement of the test is reduced; the automatic data analysis function is realized, and the problem solving time is shortened; the battery power supply is realized, and the test can be rapidly carried out under various conditions.
Description
Technical field
The present invention relates to a kind of device for testing and analyzing and methods more particularly to a kind of hydraulic servo to execute system testing analysis
Device and method.
Background technique
Hydrauservo System needs periodically to be overhauled and safeguarded as equipment safety, the core component of stable operation.And
At present due to lacking detection instrument easily and effectively, generallys use to remove servo-system after periodically shutting down and send back to manufacturer and tie up
Shield and detection, having quite a few servo-system among these, operation conditions is still good in fact, does not need excessively to overhaul, therefore
The plenty of time is wasted, economic benefit is influenced.Manufacturer without it is a set of can cover complete function test equipment,
It is all to judge by the way of manually being checked after multiple discrete test equipments acquisition data, generally existing test macro is huge,
Inaccurate problem that with high costs, larger using difficulty, test item is omitted and data are dissociated.And due to the difference of operating condition
It is different, do not ensure that system does not break down in advance in maintenance interval.Since system altitude is integrated, so that troubleshooting is difficult
Spend larger, once problem occurs, this needs to expend a large amount of man power and material and is arranging back and forth between equipment and control system on the spot
It looks into, is difficult to realize the quick positioning of failure.Therefore, a kind of simple, fast method progress servo system is found in engineer application
The detection of system and troubleshooting are particularly important.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of hydraulic servos to execute system testing analytical equipment and method, real
It now automatically analyzes and replaces artificial data processing, system and instrument integration huge at present is minimized, is realized hand-held and portable.
The present invention is to solve above-mentioned technical problem and the technical solution adopted is that provide a kind of hydraulic servo execution system survey
Analytical equipment, including mainboard, touch screen and shell are tried, in the shell, the mainboard includes place for the mainboard and touch screen setting
Device, FPGA, Acquisition Circuit and driving circuit are managed, the Acquisition Circuit includes that displacement sensor conditioning circuit and flow/pressure become
Device is sent, the driving circuit includes driving circuit of servo valve；The shell includes upper cover and bottom cover, and the touch screen passes through screen
Pressing plate is arranged in the back side of upper cover, and the contact position of the touch screen and upper cover is equipped with gasket, and the mainboard is arranged in screen pressing plate
The back side.
Further, battery is equipped in the shell, the battery is arranged by battery plate at the mainboard back side, the bottom
Housing is located on battery and is fixedly connected with upper cover, and the battery is electrically connected with mainboard.
Further, the outer casing bottom is equipped with connector, and the connector is electrically connected with mainboard；The front of the upper cover
Equipped with film key, the film key is electrically connected with touch screen, and the touch screen is electrically connected with mainboard；The outer casing bottom is set
There is handle.
Another technical solution that the present invention uses to solve above-mentioned technical problem is to provide a kind of hydraulic servo and executes system
System method for testing and analyzing, includes the following steps:
S1: it carries out sensor and is connected with the hardware of Hydrauservo System valve, and sensor is initialized；
S2: starting to test, and sets test item, load test parameter, and control valve completes test stroke；
S3: summarizing test data, and handle test data, obtains test knot by calculating analysis test data
Fruit；
S4: test is completed, and control valve playback shows test result by touch screen.
Further, the step S1 is specifically included: S11: hardware connection, by the valve sensor of Hydrauservo System and
Valve controling circuit is connected to FPGA；The valve sensor includes valve displacement sensor, valve flow sensor and valve
Pressure sensor, the valve displacement sensor access FPGA, the valve flow sensing by displacement sensor conditioning circuit
By flow/pressure transmitter input FPGA, the valve controling circuit passes through servo valve and drives for device and valve pressure sensor
Circuit connection is to FPGA；S12: the sensor accessed in step S11 is initialized.
Further, the step S2 is specifically included: S21: setting test item by touch screen, and according to test item
Load test parameter；Test item and test parameter information are transferred to processor by S22:FPGA, and processor is according to test item
It is executed instruction with test parameter information setting valve；S23: processor controls FPGA and carries out the acquisition of valve displacement data, by valve
To processor, processor executes instruction to calculate after corresponding driving exports electric current according to feedback and valve to be passed through position feedback
FPGA carries out the control of valve location via driving circuit of servo valve, forms the valve location for executing instruction, feeding back and exporting and closes
Ring output；S24: while step S23 carries out valve location control, FPGA carries out sensor data acquisition, and FPGA control is adopted
Collector is stored in RAM after carrying out sample conversion to multiple signals, and processor reads the data of RAM storage and passes through touching in real time
Touch screen display waveform；The sample rate that FPGA carries out data acquisition is that 250k is per second.
Further, test item includes displacement sensor test, servo valve coil measurement, valve in the step S21
Calibration, the test of valve response test, valve quick closing valve, the test of valve dead-band, the test of valve bias current, valve friction testing
It is controlled with valve location.
Further, the processor includes primary processor and coprocessor, and the primary processor carries out test data
Summarize, calculate and analyzes；The coprocessor handles valve location closed-loop control, the coprocessor with highest priority in real time
It is managed using low-power consumption kernel, while to system power supply；The primary processor and coprocessor are connect with FPGA, described
Primary processor and coprocessor can be accessed by FPGA all outputs and inputs data.
It further, include frictional force calculating, valve quick closing's time to the analytical calculation of test data in the step S3
Calculating, valve response time calculate, valve movement speed calculates, valve dead-band calculates and valve bias current calculates, and
Servo-system defective valves badge is puckery, valve leak and displacement sensor jitter analysis.
Further, valve quick closing valve test includes the following steps: S51: the enabling of processor output valve maximum refers to
It enables, FPGA is opened by driving circuit of servo valve control valve, while FPGA acquires valve location with the sample rate of 1ms in real time
With valve translational speed information；S52: judge that current valve reaches fully open position and steady according to the valve position information acquired in real time
After fixed, processor exports the instruction of quick closing valve electromagnetism valve breakdown；S53: quick closing valve solenoid valve control valve is closed, until valve location reaches
Shutdown position, test are completed；Show the valve location and valve movement speed curve of whole process on the touchscreen simultaneously；S54:
The time of shutdown position is reached by valve location and quick closing valve electromagnetism valve breakdown instructs the time of sending to calculate the quick closing valve of valve
Time.
The present invention, which compares the prior art, to be had following the utility model has the advantages that hydraulic servo provided by the invention executes system testing point
Analysis apparatus and method realize integration and portability that servo executes system testing, are that test can be carried out at the scene, and nothing
Manufacturer is transported back after need to removing；The testing time is greatly saved, is reduced to the testing time of single device from several hours
30 minutes or so；The function of automatic programme control test is realized, so that the profession of test requires to substantially reduce, front-line workers can be complete
At test, the processing of problem can be accelerated；Automated data analysis function is realized, survey can be obtained at the first time in test site
Test result substantially reduces the time of Resolving probiems, and to avoid error in data and can play tricks；Battery power supply is realized, it can
Quickly to carry out test under various conditions.
Detailed description of the invention
Fig. 1 is that hydraulic servo executes system testing analytical equipment structural schematic diagram in the embodiment of the present invention；
Fig. 2 is that hydraulic servo executes system testing analytical equipment block diagram in the embodiment of the present invention；
Fig. 3 is that hydraulic servo executes system testing analysis method flow chart in the embodiment of the present invention.
In figure:
1 bottom cover, 2 battery, 3 battery plate
4 mainboard, 5 screen pressing plate, 6 touch screen
7 gasket, 8 upper cover, 9 connector
10 handle, 11 film key
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is that hydraulic servo executes system testing analytical equipment block diagram in the embodiment of the present invention；Fig. 2 is the embodiment of the present invention
Middle hydraulic servo executes system testing analytical equipment structural schematic diagram.
Referring to Figure 1 and Fig. 2, the hydraulic servo of the embodiment of the present invention executes system testing analytical equipment, including mainboard 4,
In the shell, the mainboard 4 includes processor, FPGA, acquisition electricity for touch screen 6 and shell, the mainboard 4 and the setting of touch screen 6
Road and driving circuit, the Acquisition Circuit include displacement sensor conditioning circuit and flow/pressure transmitter, the driving circuit
Including driving circuit of servo valve；The shell includes upper cover 8 and bottom cover 1, and the touch screen 6 is arranged by screen pressing plate 5 upper
The contact position of the back side of lid 8, the touch screen 6 and upper cover 8 is equipped with gasket 7, and the mainboard 4 is arranged at 5 back side of screen pressing plate.
Specifically, the hydraulic servo of the embodiment of the present invention executes system testing analytical equipment, battery 2, electricity are equipped in shell
Pond 2 is arranged by battery plate 3 at 4 back side of mainboard, and the bottom cover 1 is located on battery 2 and is fixedly connected with upper cover 8, described
Battery 3 is electrically connected with mainboard 4.Outer casing bottom is equipped with connector 9, and connector 9 is electrically connected with mainboard 4；The outer casing bottom is equipped with
Handle 10；The front of upper cover 8 is equipped with film key 11, and the film key 11 is electrically connected with touch screen 6, the touch screen and master
Plate 4 is electrically connected.
Fig. 3 is referred to, the hydraulic servo of the embodiment of the present invention executes system testing analysis method, includes the following steps: S1:
It carries out sensor to connect with the hardware of Hydrauservo System valve, and sensor is initialized；S2: starting to test, setting
Test item, load test parameter, control valve complete test stroke；S3: summarizing test data, and to test data at
Reason obtains test result by calculating analysis test data；S4: test is completed, and test result is passed through touching by control valve playback
Touch screen display.
Please referring also to Fig. 2, hydraulic servo provided by the invention execute system testing analysis method, and step S1 is specifically wrapped
Include: S11: the valve sensor of Hydrauservo System and valve controling circuit are connected to FPGA by hardware connection；The valve passes
Sensor includes valve displacement sensor, valve flow sensor and valve pressure sensor, and the valve displacement sensor passes through
Displacement sensor conditioning circuit accesses FPGA, the valve flow sensor and valve pressure sensor and is become by flow/pressure
Device is sent to input FPGA, the valve controling circuit is connected to FPGA by driving circuit of servo valve；S12: to being accessed in step S11
Sensor initialized.
The hydraulic servo of please referring also to Fig. 2, the embodiment of the present invention execute system testing analysis method, and step S2 is specifically wrapped
It includes: S21: test item being set by touch screen, and according to test item load test parameter；S22:FPGA by test item and
Test parameter information is transferred to processor, and processor is executed instruction according to test item and test parameter information setting valve；
S23: processor controls FPGA and carries out the acquisition of valve displacement data, and by valve position feedback to processor, processor is according to feedback
It is executed instruction with valve and valve position is carried out via driving circuit of servo valve by FPGA after calculating corresponding driving output electric current
The control set forms the valve location closed loop output for executing instruction, feeding back and exporting；S24: valve location is carried out in step S23
While control, FPGA carries out sensor data acquisition, and FPGA is controlled after Acquisition Circuit carries out sample conversion to multiple signals and deposited
In RAM, processor reads the data of RAM storage and passes through touch screen display waveform in real time for storage；FPGA carries out data acquisition
Sample rate is that 250k is per second.
Specifically, the hydraulic servo of the embodiment of the present invention executes system testing analysis method, the processor includes main place
Reason device and coprocessor, the primary processor summarize test data, calculated and are analyzed；The coprocessor is excellent with highest
First grade handles valve location closed-loop control in real time, and the coprocessor uses low-power consumption kernel, while carrying out pipe to system power supply
Reason；The primary processor and coprocessor are connect with FPGA, and the primary processor and coprocessor can be accessed by FPGA
It is all to output and input data.
Specifically, the hydraulic servo of the embodiment of the present invention executes system testing analysis method, test item packet in step S21
Include displacement sensor test, the test of servo valve coil measurement, valve calibration, valve response test, valve quick closing valve, valve dead-band
Test, the test of valve bias current, valve friction testing and valve location control.To the analysis meter of test data in step S3
Calculate includes that frictional force calculates, valve quick closing's time calculates, the valve response time calculates, valve movement speed calculates, valve is slow
Rate calculates and valve bias current calculates and servo-system defective valves badge is puckery, valve leak and displacement sensor shake divide
Analysis.
By taking the test of valve quick closing valve as an example, the test of valve quick closing valve includes the following steps: S51: processor output valve maximum is opened
Door instruction, FPGA is opened by driving circuit of servo valve control valve, while FPGA acquires valve with the sample rate of 1ms in real time
Position and valve movement speed；S52: judge that current valve reaches fully open position and steady according to the valve position information acquired in real time
After fixed, processor exports the instruction of quick closing valve electromagnetism valve breakdown；S53: quick closing valve solenoid valve control valve is closed, until valve location reaches
Shutdown position, test are completed；Show the valve location and valve movement speed curve of whole process on the touchscreen simultaneously；S54:
The time of shutdown position is reached by valve location and quick closing valve electromagnetism valve breakdown instructs the time of sending to calculate the quick closing valve of valve
Time.
When being controlled with introducing quick closing valve solenoid valve in quick closing valve test, therefore can in further detail and accurately calculate quick closing valve
Between, including quick closing valve solenoid valve ground delayed test and valve body ground quick closing's time.Due to introducing the survey of valve movement speed
Amount, can change according to valve movement speed to terminate with judging door closing procedure, to calculate quick closing's time.And valve moves
Introduce to dynamic speed can judge well valve whether have suitably buffer area avoid to valve the mechanical punching of quick closing valve process
It hits, to protect valve.Can be assumed that when valve velocity slows down suddenly terminates for quick closing valve process, it can be assumed that being this moment quick closing valve
End time.When valve velocity slows down suddenly valve physical location may determine that whether valve has suitably buffer area.It should
The quick closing valve test of device has the advantage that 1. entire test process have procedure auto-control completion compared to the test of traditionally quick closing valve
And directly show final testing result, without third party device or artificial participation control or calculate；2. joined quick closing valve solenoid valve
Ground control instruction, with can more all-sidedly and accurately grasping quick closing valve process various pieces performance；3. introducing valve movement speed
Ground measurement provides foundation well to the automatic quick closing's time that calculates, and can be used to well with judging valve buffer area
Whether be arranged reasonable.
In conclusion hydraulic servo provided by the invention executes system testing analytical equipment and method, realizes servo and hold
The integration and portability of row system testing carry out test can at the scene, without transporting manufacturer back after removing；Significantly
The testing time has been saved, has been reduced to the testing time of single device from several hours 30 minutes or so；Realize automatic programme control
The function of test, so that the profession of test requires to substantially reduce, test is can be completed in front-line workers, can accelerate the place of problem
Reason；Automated data analysis function is realized, test result can be obtained at the first time in test site, substantially reduce solution
Time certainly, and to avoid error in data and can play tricks；Battery power supply is realized, can quickly carry out survey under various conditions
Examination.
Although the present invention is disclosed as above with preferred embodiment, however, it is not to limit the invention, any this field skill
Art personnel, without departing from the spirit and scope of the present invention, when can make a little modification and perfect therefore of the invention protection model
It encloses to work as and subject to the definition of the claims.
Claims (10)
1. a kind of hydraulic servo executes system testing analytical equipment, which is characterized in that including mainboard (4), touch screen (6) and outside
In the shell, the mainboard (4) includes processor, FPGA, Acquisition Circuit and drive for shell, the mainboard (4) and touch screen (6) setting
Dynamic circuit, the Acquisition Circuit include displacement sensor conditioning circuit and flow/pressure transmitter, and the driving circuit includes watching
Take valve-driving circuit；The shell includes upper cover (8) and bottom cover (1), and the touch screen (6) is arranged by screen pressing plate (5)
The back side of upper cover (8), the touch screen (6) and the contact position of upper cover (8) are equipped with gasket (7), and the mainboard (4) is arranged in screen
Pressing plate (5) back side.
2. the hydraulic servo stated such as claim 1 executes system testing analytical equipment, which is characterized in that be equipped with electricity in the shell
Pond (2), the battery (2) are arranged by battery plate (3) at mainboard (4) back side, and the bottom cover (1) is located on battery (2)
And be fixedly connected with upper cover (8), the battery (3) is electrically connected with mainboard (4).
3. the hydraulic servo stated such as claim 1 executes system testing analytical equipment, which is characterized in that the outer casing bottom is equipped with
Connector (9), the connector (9) are electrically connected with mainboard (4)；The front of the upper cover (8) is equipped with film key (11), described
Film key (11) is electrically connected with touch screen (6), and the touch screen is electrically connected with mainboard (4)；The outer casing bottom is equipped with handle
(10)。
4. a kind of hydraulic servo executes system testing analysis method, which is characterized in that using as described in claim any one of 1-3
Hydraulic servo execute system testing analytical equipment, include the following steps:
S1: it carries out sensor and is connected with the hardware of Hydrauservo System valve, and sensor is initialized；
S2: starting to test, and sets test item, load test parameter, and control valve completes test stroke；
S3: summarizing test data, and handle test data, obtains test result by calculating analysis test data；
S4: test is completed, and control valve playback shows test result by touch screen.
5. hydraulic servo as claimed in claim 4 executes system testing analysis method, which is characterized in that the step S1 is specific
Include:
S11: the valve sensor of Hydrauservo System and valve controling circuit are connected to FPGA by hardware connection；The valve
Sensor includes valve displacement sensor, valve flow sensor and valve pressure sensor, and the valve displacement sensor is logical
Displacement sensor conditioning circuit access FPGA is crossed, the valve flow sensor and valve pressure sensor pass through flow/pressure
Transmitter inputs FPGA, and the valve controling circuit is connected to FPGA by driving circuit of servo valve；
S12: the sensor accessed in step S11 is initialized.
6. hydraulic servo as claimed in claim 5 executes system testing analysis method, which is characterized in that the step S2 is specific
Include:
S21: test item is set by touch screen, and according to test item load test parameter；
Test item and test parameter information are transferred to processor by S22:FPGA, and processor is according to test item and test parameter
Information setting valve executes instruction；
S23: processor controls FPGA and carries out the acquisition of valve displacement data, by valve position feedback to processor, processor according to
It feeds back to execute instruction to calculate after corresponding driving exports electric current with valve and passes through FPGA via driving circuit of servo valve progress valve
The control of door position forms the valve location closed loop output for executing instruction, feeding back and exporting；
S24: while step S23 carries out valve location control, FPGA carries out sensor data acquisition, FPGA control acquisition electricity
Road is stored in RAM after carrying out sample conversion to multiple signals, and processor reads the data of RAM storage and passes through touch screen in real time
Display waveform；The sample rate that FPGA carries out data acquisition is that 250k is per second.
7. hydraulic servo as claimed in claim 6 executes system testing analysis method, which is characterized in that in the step S21
Test item include displacement sensor test, servo valve coil measurement, valve calibration, valve response test, valve quick closing valve test,
The test of valve dead-band, the test of valve bias current, valve friction testing and valve location control.
8. hydraulic servo as claimed in claim 6 executes system testing analysis method, which is characterized in that the processor includes
Primary processor and coprocessor, the primary processor summarize test data, calculated and are analyzed；The coprocessor is with most
High priority handles valve location closed-loop control in real time, and the coprocessor uses low-power consumption kernel, at the same to system power supply into
Row management；The primary processor and coprocessor are connect with FPGA, and the primary processor and coprocessor can pass through FPGA
It accesses and all outputs and inputs data.
9. hydraulic servo as claimed in claim 6 executes system testing analysis method, which is characterized in that right in the step S3
The analytical calculation of test data includes that frictional force calculates, valve quick closing's time calculates, the valve response time calculates, the mobile speed of valve
Degree calculates, valve dead-band calculates and valve bias current calculates and servo-system defective valves badge is puckery, valve leak and position
Displacement sensor jitter analysis.
10. hydraulic servo as claimed in claim 7 executes system testing analysis method, which is characterized in that the valve is fast
Test is closed to include the following steps:
S51: processor output valve maximum door open command, FPGA are opened by driving circuit of servo valve control valve, simultaneously
FPGA acquires valve location and valve movement speed with the sample rate of 1ms in real time；
S52: after judging that current valve reaches fully open position and stablizes according to the valve position information acquired in real time, processor output
The instruction of quick closing valve electromagnetism valve breakdown；
S53: quick closing valve solenoid valve control valve is closed, and until valve location reaches shutdown position, test is completed；Simultaneously in touch screen
The valve location and valve movement speed curve of upper display whole process；
The time that S54: reaching the time of shutdown position by valve location and the instruction of quick closing valve electromagnetism valve breakdown issues calculates valve
The quick closing's time of door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910105685.9A CN109799764A (en) | 2019-02-01 | 2019-02-01 | Hydraulic servo execution system test analysis device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910105685.9A CN109799764A (en) | 2019-02-01 | 2019-02-01 | Hydraulic servo execution system test analysis device and method |
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| CN109799764A true CN109799764A (en) | 2019-05-24 |
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| CN201910105685.9A Pending CN109799764A (en) | 2019-02-01 | 2019-02-01 | Hydraulic servo execution system test analysis device and method |
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|---|---|---|---|---|
| CN102230646A (en) * | 2011-04-15 | 2011-11-02 | 中国科学院长春光学精密机械与物理研究所 | Multifunctional heating stove controller using solar energy, gas and power |
| CN102673419A (en) * | 2012-05-15 | 2012-09-19 | 深圳市陆地方舟电动车有限公司 | Intelligent management system of lithium battery of electric automobile |
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| CN104359668A (en) * | 2014-11-24 | 2015-02-18 | 贵州电力试验研究院 | Testing device for detecting key characteristics of valve executing mechanism of steam turbine on site and operating method |
| CN205592225U (en) * | 2016-04-18 | 2016-09-21 | 天津奥兰特液压设备维修有限公司 | Portable hydraulic servo valve failure diagnosis tester |
| CN107327443A (en) * | 2016-04-28 | 2017-11-07 | 天津奥兰特液压设备维修有限公司 | Hydraulic servo valve tester |
-
2019
- 2019-02-01 CN CN201910105685.9A patent/CN109799764A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230646A (en) * | 2011-04-15 | 2011-11-02 | 中国科学院长春光学精密机械与物理研究所 | Multifunctional heating stove controller using solar energy, gas and power |
| CN102673419A (en) * | 2012-05-15 | 2012-09-19 | 深圳市陆地方舟电动车有限公司 | Intelligent management system of lithium battery of electric automobile |
| CN204009892U (en) * | 2014-08-07 | 2014-12-10 | 成都傅立叶电子科技有限公司 | Embedded overall treatment platform based on X86 and the general-purpose operating system |
| CN104359668A (en) * | 2014-11-24 | 2015-02-18 | 贵州电力试验研究院 | Testing device for detecting key characteristics of valve executing mechanism of steam turbine on site and operating method |
| CN205592225U (en) * | 2016-04-18 | 2016-09-21 | 天津奥兰特液压设备维修有限公司 | Portable hydraulic servo valve failure diagnosis tester |
| CN107327443A (en) * | 2016-04-28 | 2017-11-07 | 天津奥兰特液压设备维修有限公司 | Hydraulic servo valve tester |
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Application publication date: 20190524 |