NL2025654A - Hydraulic cylinder test bed measurement and control system - Google Patents
Hydraulic cylinder test bed measurement and control system Download PDFInfo
- Publication number
- NL2025654A NL2025654A NL2025654A NL2025654A NL2025654A NL 2025654 A NL2025654 A NL 2025654A NL 2025654 A NL2025654 A NL 2025654A NL 2025654 A NL2025654 A NL 2025654A NL 2025654 A NL2025654 A NL 2025654A
- Authority
- NL
- Netherlands
- Prior art keywords
- measurement
- test
- hydraulic cylinder
- control
- control system
- Prior art date
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- 238000012360 testing method Methods 0.000 title claims abstract description 71
- 238000005259 measurement Methods 0.000 title claims abstract description 39
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 16
- 238000002955 isolation Methods 0.000 claims description 15
- 239000003921 oil Substances 0.000 claims 7
- 239000010720 hydraulic oil Substances 0.000 claims 4
- 239000003129 oil well Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000011056 performance test Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
- F15C1/00—Circuit elements having no moving parts
- F15C1/02—Details, e.g. special constructional devices for circuits with fluid elements, such as resistances, capacitive circuit elements; devices preventing reaction coupling in composite elements ; Switch boards; Programme devices
- F15C1/04—Means for controlling fluid streams to fluid devices, e.g. by electric signals or other signals, no mixing taking place between the signal and the flow to be controlled
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/13—Plc programming
- G05B2219/13141—Derive sequence program from design, cad data of machine
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A hydraulic cylinder test bed measurement and control system comprises console, electrical control cabinet, measurement and control cabinet, three test beds and main oil source components. Test data is acquired, analyzed and processed, a predetermined measurement and control program is automatically selected and started in automatic test mode according to test items selected by a user, instruction signals are sent to an analog output card and a PLC according to a predetermined action sequence, and output to actuating elements eg. proportional overflow valves, proportional reversing valves, solenoid valves and contactors, realizing real-time control and acquisition of test data eg. pressure, flow and displacement, full-automatic flow monitoring and control of performance test processes e.g. frequency response and step response of hydraulic cylinders, real-time data acquisition with high speed and precision, efficient and accurate real-time issuance of control commands, ensuring timeliness, accuracy, high efficiency and safety of the test measurements and control.
Description
SYSTEM Field of the Invention The present invention relates to the technical field of hydraulic cylinder test bed measurement and control, in particular to a hydraulic cylinder test bed measurement and control system. Background of the Invention A hydraulic cylinder is a hydraulic actuating element that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). The hydraulic cylinder is simple in structure and reliable in operation. When the hydraulic cylinder is used to realize reciprocating motion, a deceleration device can be omitted, no transmission gap occurs, and the motion is stable, so the hydraulic cylinder has been widely used in hydraulic systems of various machines. In the delivery, upgrade optimization, maintenance and manufacturing of hydraulic cylinders, relevant performances of the hydraulic cylinders are required to be tested, in order to better improve the technical performance and quality of products and enhance the market competitiveness of the products.
Alaboratory hydraulic cylinder measurement and control system provides, according to the working characteristics of an engineering machine, a large-scale comprehensive test platform with high precision for its hydraulic elements and hydraulic systems. The laboratory hydraulic cylinder measurement and control system can simulate various actual process conditions of the engineering machine under the control of a computer and load the tested elements and systems, so as to test the static and dynamic characteristics of the hydraulic elements and hydraulic systems under the simulated process conditions. However, the existing hydraulic cylinder test bed measurement and control system cannot perform high-speed, real-time and accurate acquisition and control on relevant performance parameters of a hydraulic cylinder on the test bed, requires human aid for manual measurement and control, and cannot realize high-speed, real-time and full-automatic measurement and control.
Summary of the Invention An objective of the present invention is to propose a hydraulic cylinder test bed measurement and control system in order to solve the problems in the prior art.
In order to achieve the above objective, the following technical solution is adopted in the present invention.
A hydraulic cylinder test bed measurement and control system comprises a console, an electrical control cabinet, a measurement and control cabinet, three test beds and main oil source components, wherein the console comprises a display screen, an industrial control computer and secondary display instruments, and the industrial control computer is electrically connected with the display screen; the measurement and control cabinet comprises an analog data output card, a signal isolation module, an analog data acquisition card, and level conversion and hardware filtering components; the analog data output card is connected with the signal isolation module, and the analog data acquisition card is connected with the level conversion and hardware filtering components; the electrical control cabinet comprises a PLC module, a control power supply, buttons and switches, an intermediate relay, an indicator light and a sound-light alarm device; the control power supply, the buttons and switches, the intermediate relay, the indicator light and the sound-light alarm device are all electrically connected with the PLC module; each of the three test beds comprises a proportional overflow valve, a proportional reversing valve, a hydraulic branch oil line and branch oil line sensors; the proportional overflow valve and the proportional reversing valve are mechanically connected with the hydraulic branch oil line; the main oil source components comprise a solenoid valve, an oil pump, a hydraulic main oil line and main oil line sensors; and the solenoid valve is mechanically connected with the hydraulic main oil line.
Preferably, the main oil line sensors comprise a pressure sensor, a flow sensor and a temperature sensor.
Preferably, the branch oil line sensors comprise a pressure sensor, a flow sensor, a displacement sensor and an electronic balance sensor.
Preferably, the proportional overflow valve and the proportional reversing valve are electrically connected with the signal isolation module. Preferably, the analog data acquisition card 1s a multifunctional data acquisition card. Preferably, the solenoid valve is electrically connected with the intermediate relay.
Preferably, the branch oil line sensors are electrically connected with the level conversion and hardware filtering components. Beneficial effects of the present invention: test data is acquired, analyzed and processed, a predetermined measurement and control program is automatically selected and started in an automatic test mode according to the test items selected by a user, and instruction signals are sent to the analog output card and a PLC according to the predetermined action sequence, and finally output to actuating elements such as proportional overflow valves, proportional reversing valves, solenoid valves and contactors, thereby realizing real-time control and acquisition of various test data such as pressure, flow and displacement, full-automatic flow monitoring and control of more than ten specific performance test processes such as frequency response and step response of hydraulic cylinders, real-time data acquisition with high speed and high precision, and efficient and accurate real-time issuance of control commands, and ensuring the timeliness, accuracy, high efficiency and safety of the test measurement and control process.
Brief Description of the Drawings Fig. 1 is a schematic structural diagram of a console of a hydraulic cylinder test bed measurement and control system according to the present invention; Fig. 2 1s a schematic structural diagram of an electrical control cabinet of the hydraulic cylinder test bed measurement and control system according to the present invention; Fig. 3 is a schematic structural diagram of main oil source components of the hydraulic cylinder test bed measurement and control system according to the present invention; Fig. 4 is a schematic structural diagram of a measurement and control cabinet of the hydraulic cylinder test bed measurement and control system according to the present invention; and Fig. 5 is a schematic structural diagram of a test bed of the hydraulic cylinder test bed measurement and control system according to the present invention.
Detailed Description of the Embodiments A clear and complete description will be made to the technical solutions in the embodiments of the present invention below with reference to the accompanying drawings in the embodiments of the present invention.
Apparently, the embodiments described are only part of the embodiments of the present invention, not all of them.
Referring to Figs. 1-5, a hydraulic cylinder test bed measurement and control system comprises a console, an electrical control cabinet, a measurement and control cabinet, three test beds and main oil source components, wherein the console comprises a display screen, an industrial control computer and secondary display instruments; the secondary display instruments display the data of sensors, which is convenient for a worker to inquire and understand.
The industrial control computer is electrically connected with the display screen, and a labVIEW-based full-automatic measurement and control software system is installed on the industrial control computer, which can perform various tests such as trial operation test, starting pressure characteristic test, pressure resistance test, durability test, stroke test, frequency response test and step test on a hydraulic cylinder.
For each test, a variety of test processes and test parameters can be manually selected and set in advance, and specific test parameters can be set for a specific hydraulic cylinder.
Real-time communication between DAQNavi Polymorphic VI and an analog data acquisition card and labVIEW application software are used to set various test parameters and test processes of the hydraulic cylinder, flow control of each test process, real-time acquisition and low-pass and smooth filtering of various test data such as pressure, flow and displacement, linear engineering quantity conversion, real-time dynamic data and curve display and storage, and generation and printing of various test reports, and the display screen displays the data on the industrial control computer, which is convenient for the worker to operate and understand.
The measurement and control cabinet comprises an analog data output card, a signal isolation module, an analog data acquisition card, and level conversion and hardware filtering components.
The analog data acquisition card is a multifunctional data acquisition card.
The analog output card and the analog data output card are connected with the signal isolation module, and the analog data acquisition card is connected with the level conversion and hardware filtering components.
The analog input realizes high-precision reading of data by means of differential access, the level conversion realizes the conversion 5 of 4-20 ma analog current signals of pressure, flow or the like to 1-5VDC voltage signals, and the input and output signal isolation and the hardware filtering realize the reliability and accuracy of analog data transmission.
The electrical control cabinet comprises a PLC module, a control power supply, buttons and switches, an intermediate relay, an indicator light and a sound-light alarm device.
The control power supply, the buttons and switches, the intermediate relay, the indicator light and the sound-light alarm device are all electrically connected with the PLC module.
The PLC module controls and operates the connected devices.
Each of the three test beds comprises a proportional overflow valve, a proportional reversing valve, a hydraulic branch oil line and branch oil line sensors.
The branch oil line sensors detect and record the data on the three test beds, the branch oil line sensors are electrically connected with the level conversion and hardware filtering components, and the level conversion and hardware filtering components make the measured data of the branch oil line sensors more accurate and prevent the interference of external factors.
The proportional overflow valve and the proportional reversing valve are electrically connected with the signal isolation module.
The signal isolation can isolate external interference factors.
The branch oil line sensors comprise a pressure sensor, a flow sensor, a displacement sensor and an electronic balance sensor.
The proportional overflow valve and the proportional reversing valve are mechanically connected with the hydraulic branch oil line.
The proportional overflow valve and the proportional reversing valve control the hydraulic branch oil line and quickly detect the hydraulic cylinder.
The main oil source components comprise a solenoid valve, an oil pump, a hydraulic main oil line and main oil line sensors.
The solenoid valve is electrically connected with the intermediate relay.
The main oil line sensors comprise a pressure sensor, a flow sensor and a temperature sensor.
Through these sensors, the data in a main oil source can be known in time.
The solenoid valve is mechanically connected with the hydraulic main oil line.
The hydraulic cylinder test bed measurement and control system comprises a console, a measurement and control cabinet, an electrical control cabinet, three test beds, and instruments for secondary display of pressure, displacement, speed and temperature, wherein the three test beds can simultaneously test three different hydraulic cylinders; the console comprises a display screen and an industrial control computer, and the industrial control computer is electrically connected with the display screen; the display screen displays the data on the industrial control computer; labVIEW application software is installed on the industrial control computer; the real-time communication between DAQNavi Polymorphic VI and an analog data acquisition card and the labVIEW application software realize configuration of various test parameters and test processes of the hydraulic cylinders, flow control of each test process, real-time acquisition and low-pass and smooth filtering of various test data such as pressure, flow and displacement, linear engineering quantity conversion, real-time dynamic data and curve display and storage, and generation and printing of various test reports; the measurement and control cabinet comprises an analog data output card, a signal isolation module, a data acquisition card and level conversion and hardware filtering components, wherein the signal isolation module and the level conversion and hardware filtering components ensure the reliability and accuracy of data transmission; the analog data output card is connected with the signal isolation module, and the signal isolation module ensures accurate output of the analog data; the data acquisition card is connected with the level conversion and hardware filtering components; each of the three test beds is provided with branch oil line sensors, a proportional reversing valve, a proportional overflow valve and a hydraulic branch oil line; the branch oil line sensors comprise pressure, flow and displacement sensors, which can detect the data of the hydraulic cylinders and acquire the test data of the hydraulic cylinders in real time; the electrical control cabinet comprises a PLC module, a control power supply, buttons and switches, an intermediate relay, an indicator light and a sound-light alarm device; the control power supply, the buttons and switches, the intermediate relay, the indicator light and the sound-light alarm device are all electrically connected with the PLC module, and the PLC module operates the connected devices; the main oil source components comprise a solenoid valve, an oil pump, a hydraulic main oil line and main oil line sensors, the solenoid valve is mechanically connected with the hydraulic main oil line, the solenoid valve directly controls the opening of the hydraulic main oil line and performs segmented main oil control, and the main oil line sensors detect various data in the main oil line, so as to acquire and detect the data in time.
Described above are specific preferred embodiments of the present invention only, but the protection scope of the present invention is not limited thereto. Any skilled person who is familiar with this art could make equivalent substitutions or variations within the disclosed technical scope of the present invention according to the technical solutions of the present invention and the inventive concepts thereof, and these substitutions or variations shall fall within the protection scope of the present invention.
Claims (7)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910466068.1A CN110161954A (en) | 2019-05-30 | 2019-05-30 | A kind of hydraulic cylinder test platform TT&C system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NL2025654A true NL2025654A (en) | 2020-12-03 |
| NL2025654B1 NL2025654B1 (en) | 2022-01-20 |
Family
ID=67630186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL2025654A NL2025654B1 (en) | 2019-05-30 | 2020-05-22 | Hydraulic cylinder test bed measurement and control system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110161954A (en) |
| NL (1) | NL2025654B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115390543B (en) * | 2022-08-01 | 2024-06-25 | 合众新能源汽车股份有限公司 | Wire control system debugging method and device, terminal equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204512069U (en) * | 2014-12-31 | 2015-07-29 | 燕山大学 | The test bed hydraulic control system of energy saving excavator oil hydraulic cylinder |
| CN204572631U (en) * | 2014-10-15 | 2015-08-19 | 上海徽封机电设备有限公司 | A kind of proportional servo valve test system |
| CN106338969A (en) * | 2016-10-21 | 2017-01-18 | 吉林大学 | Reliability test apparatus and test method for electro-hydraulic servo feeding system |
| CN107991026A (en) * | 2017-12-20 | 2018-05-04 | 马鞍山市恒永利机械科技有限公司 | A kind of hydraulic cylinder spillage test device |
| CN108087388A (en) * | 2016-11-21 | 2018-05-29 | 赵江涛 | A kind of electric control system of Hydraulic Experimental Platform |
| CN108961697A (en) * | 2018-07-05 | 2018-12-07 | 吴翔 | Phonetic warning system based on WinCC database |
-
2019
- 2019-05-30 CN CN201910466068.1A patent/CN110161954A/en not_active Withdrawn
-
2020
- 2020-05-22 NL NL2025654A patent/NL2025654B1/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204572631U (en) * | 2014-10-15 | 2015-08-19 | 上海徽封机电设备有限公司 | A kind of proportional servo valve test system |
| CN204512069U (en) * | 2014-12-31 | 2015-07-29 | 燕山大学 | The test bed hydraulic control system of energy saving excavator oil hydraulic cylinder |
| CN106338969A (en) * | 2016-10-21 | 2017-01-18 | 吉林大学 | Reliability test apparatus and test method for electro-hydraulic servo feeding system |
| CN108087388A (en) * | 2016-11-21 | 2018-05-29 | 赵江涛 | A kind of electric control system of Hydraulic Experimental Platform |
| CN107991026A (en) * | 2017-12-20 | 2018-05-04 | 马鞍山市恒永利机械科技有限公司 | A kind of hydraulic cylinder spillage test device |
| CN108961697A (en) * | 2018-07-05 | 2018-12-07 | 吴翔 | Phonetic warning system based on WinCC database |
Also Published As
| Publication number | Publication date |
|---|---|
| NL2025654B1 (en) | 2022-01-20 |
| CN110161954A (en) | 2019-08-23 |
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| Date | Code | Title | Description |
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| MM | Lapsed because of non-payment of the annual fee |
Effective date: 20230601 |