CN104483146A - Intelligent detection system for constant force hanger computer, and test method of constant force hanger computer - Google Patents
Intelligent detection system for constant force hanger computer, and test method of constant force hanger computer Download PDFInfo
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- CN104483146A CN104483146A CN201410616380.1A CN201410616380A CN104483146A CN 104483146 A CN104483146 A CN 104483146A CN 201410616380 A CN201410616380 A CN 201410616380A CN 104483146 A CN104483146 A CN 104483146A
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Abstract
The invention discloses an intelligent detection system for a constant force hanger computer, and a test method of the constant force hanger computer. The intelligent detection system comprises an industrial control computer, a frame, an oil cylinder, a pumping station and a proportion reversing valve and is characterized in that the frame is provided with the oil cylinder, the lower end of the oil cylinder is connected with a to-be-tested hanger, a displacement sensor and a data acquisition control system are connected through a data line, a pressure sensor and the data acquisition control system are connected through a data line, the industrial control computer and the data acquisition control system are connected, the pumping station is connected with the oil cylinder through the proportion reversing valve, the data acquisition control system controls motion reversing of the proportion reversing valve, and a pull pin button box and the data acquisition control system are connected. The intelligent detection system can automatically carry out force-displacement signal measurement and curve drafting, automatic force steadiness calculation, pull pin control, pause control, walking control, overload test, data storage and report printing and further has advantages of high integration degree, intelligent performance, concise structure and reliable performance.
Description
Technical field
The present invention relates to properties of product detection system, particularly relate to a kind of constant hanger computer intelligence detection system and method for testing thereof.
Background technology
Constant hanger (hanging hereinafter referred to as perseverance) is according to principle of moment balance design, and under the load displacement of license, loading moment and spring torque remain balance.To the pipeline and the equipment that hang supporting by perseverance, when being subjected to displacement, it can provide constant supporting power, thus can not bring extra-stress to pipe-line equipment.That is, the requirement of hanging perseverance is in its impulse stroke, and along with the change of displacement, its bearing reaction is constant, namely demonstrates zero stiffness characteristic.But it is non-existent that desirable perseverance is hung.Design, processing and assembling that perseverance is hung all can impact its constant force characteristic.Before each perseverance is hung in and dispatches from the factory, all to detect its power-displacement relation, guarantee that its key index-invariance degree and the degree of deviation meet the demands.The semi-hand detection method complex operation based on dynamometer and ruler that current most producers adopt, precision are not high, and can not the power of automatically drawing-displacement curve, can not automatically calculation deviation degree and invariance degree, overload test time load control inaccurate, test data cannot be preserved for inquiring about and automatically generating printed report.
Summary of the invention
The object of this invention is to provide a kind of constant hanger computer intelligence detection system and method for testing thereof, automatically to be measured by this design and drafting power-displacement curve, automatically calculation deviation degree and invariance degree, overload test, travelling control, load control, automatically preserve test data for inquiry with automatically generate printed report.
In order to solve the problem, the technical solution used in the present invention is:
A kind of constant hanger computer intelligence detection system, comprise industrial computer, frame, oil cylinder, pumping plant and proportional reversing valve, it is characterized in that: also comprise data acquisition control system, displacement transducer, pressure transducer and button box of pulling pin, frame is provided with oil cylinder, described oil cylinder lower end is connected with perseverance to be measured and hangs, institute's displacement sensors is connected with data acquisition control system the shift value hung for gathering perseverance by data line, described pressure transducer is connected with data acquisition control system the load value hung for gathering perseverance by data line, described industrial computer is connected with data acquisition control system, described pumping plant passing ratio reversal valve is connected with oil cylinder, described data acquisition control system control ratio reversal valve action commutation, the time-out to system when described button box of pulling pin is connected for pulling pin with data acquisition control system and continuation.
Aforesaid a kind of constant hanger computer intelligence detection system, it is characterized in that: described data acquisition control system is by measurement and control card and can the connecting terminal box of additional filterings circuit form, and described measurement and control card is integrated with 8 difference analogue input channels, 2 analog output channels and 24 digital channels.
Aforesaid a kind of constant hanger computer intelligence detection system, is characterized in that: institute's displacement sensors is connected by the analog input channel of data line with measurement and control card with pressure transducer.
Aforesaid a kind of constant hanger computer intelligence detection system, it is characterized in that: described in button box of pulling pin comprise a red button and a green button, two pushbutton switch one end of described button box of pulling pin are connected to the power end of measurement and control card, and the other end is connected to two digital input channels of measurement and control card.
Aforesaid a kind of constant hanger computer intelligence detection system, is characterized in that: described measurement and control card adopts NI PCI-6221 measurement and control card.
Aforesaid a kind of constant hanger computer intelligence detection system, is characterized in that: institute's displacement sensors adopts LVDT linear displacement transducer, and described pressure transducer adopts radial pull pressure sensor.
A kind of constant hanger computer intelligence method of testing, is characterized in that: comprise the following steps:
(1), start pumping plant, press the corresponding button at the main interface of industrial computer program, corresponding handling procedure performs oil cylinder travelling control by data acquisition control system, and perseverance to be detected lifting is assigned to measurement initial position;
(2) start under, controlling in the master routine of industrial computer to measure, start slow pull-up perseverance by data acquisition control system order oil cylinder to hang, industrial computer starts to measure in real time and display force-displacement curve by data acquisition control system simultaneously, and industrial computer constantly inquires about whether there is the pulse that in button box of pulling pin, red button produces by data acquisition control system simultaneously;
(3), in button box is pulled pin in discovery, red button produces pulse, pressing the red button of pulling pin on button box at once makes oil cylinder stop rising, and pull up the latch that perseverance is hung, industrial computer is write down the load value that now pressure transducer is reflected by data acquisition control system and is load value of pulling pin, industrial computer trace routine is used it for and is judged that whether product is qualified, and simultaneously the positional value that reflected by data acquisition control system of industrial computer recorded bit displacement sensor is as impulse stroke starting point;
(4), operator confirms that industrial computer obtains pulling pin after load value and positional value, and press the green button of pulling pin on button box, data acquisition control system controls oil cylinder to be continued to rise;
(5), the measurement and control program of industrial computer is according to the impulse stroke of pulling pin in position and product information, determine the domain of walk to oil cylinder during Product checking, control oil cylinder to rise and reach position that pull pin position and impulse stroke sum represent and complete journey and test, industrial computer starts measurement in real time by data acquisition control system and shows force-displacement curve simultaneously;
(6) after, going journey to terminate, industrial computer sends oil cylinder dropping signal by data acquisition control system, proportional reversing valve action is commutated, perseverance is made to hang slow unloading, until get back to position of pulling pin to complete backhaul test, industrial computer starts to measure in real time and display force-displacement curve by data acquisition control system simultaneously, and measure and automatically terminate, industrial computer calculates invariance degree and whether is up to the standards.
Aforesaid a kind of constant hanger computer intelligence method of testing, it is characterized in that: further comprising the steps of before step (1): start industrial computer measurement and control program and comprise main interface and optimum configurations interface, at the main interface of program by the essential information typing product database of product to be measured;
Aforesaid a kind of constant hanger computer intelligence method of testing, it is characterized in that: further comprising the steps of between step (1) and step (2): the reading display of industrial computer checking the current sensor of main interface display, if current load value is not near null value, enter optimum configurations interface, click " removing load initial point " button, return main interface;
Aforesaid a kind of constant hanger computer intelligence method of testing, it is characterized in that: in step (3), if perseverance is hung as the type of pulling pin, the latch that perseverance hangs should be observed whether loosen simultaneously, once loosen, pressing the red button of pulling pin on button box at once makes oil cylinder stop rising, and pull up the latch that perseverance is hung, industrial computer is write down the load value that now pressure transducer is reflected by data acquisition control system and is load value of pulling pin, industrial computer trace routine is used it for and is judged that whether product is qualified, simultaneously the positional value that reflected by data acquisition control system of industrial computer recorded bit displacement sensor is as impulse stroke starting point.
The beneficial effect that the present invention reaches: present system takes full advantage of virtual instrument principle, and structure is simplified, reliable.System adopts high-precision data acquisition control system, perseverance is hung the measurement in characterization processes and controls organically to integrate.In same system, possess simultaneously force-displacement relationship plotting curves, automatically the assumed (specified) load degree of deviation and invariance degree, load and overload control, continuously and chopping mode, adaptation pull pin and the non-abilities such as test specimen of pulling pin.There is high integration, intellectuality, structure simplified, the advantage such as reliable.
Accompanying drawing explanation
Fig. 1 is constant hanger computer intelligence detection system structured flowchart of the present invention.
Fig. 2 is constant hanger computer intelligence method of testing observing and controlling process flow diagram of the present invention.
Fig. 3 is load feedback control principle figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of specific embodiment of constant hanger computer intelligence detection system, comprising industrial computer 1, data acquisition control system 2, fluid pressure drive device, sensor, button box 5 of pulling pin.Data acquisition control system 2 is made up of the NI PCI-6221 measurement and control card of integrated 8 difference analogue input channels, two analog output channels and 24 digital channels and the connecting terminal box that can connect low-pass filter, has 16 bit data precision.Fluid pressure drive device is formed primarily of frame 3-1, oil cylinder 3-2, pumping plant 3-3, proportional reversing valve 3-4, frame 3-1 is provided with oil cylinder 3-2, described oil cylinder 3-2 lower end is connected with perseverance to be measured and hangs 6, described industrial computer 1 is connected with data acquisition control system 2, pumping plant 3-3 passing ratio reversal valve 3-4 is connected 3-2 with oil cylinder, described data acquisition control system 2 control ratio reversal valve 3-4 action commutation, proportional reversing valve 3-4 can adopt solenoid-operated proportional reversal valve.Sensor comprises displacement transducer 4-1 and pressure transducer 4-2.Pull pin in button box 5 and comprise a red button and a green button.
Industrial computer 1 and data acquisition control system 2 carry out communication by PCI interface.Displacement transducer 4-1 and pressure transducer 4-2 is direct current 24V and powers, and the voltage (-10V ~+10V) exported as being proportional to tested value receives the analog input channel of the NI PCI-6221 measurement and control card in data acquisition control system 2 by wire.Displacement transducer 4-1 can adopt LVDT linear displacement transducer, and for gathering the shift value that perseverance hangs 6, pressure transducer 4-2 can adopt radial pull pressure sensor, for gathering the load value that perseverance hangs 6.Pull pin two pushbutton switch one end of button box 5 are connected to the+5V power supply of NI PCI-6221 measurement and control card, and the other end links two digital input channels of NI PCI-6221 measurement and control card.
Constant hanger computer intelligence method of testing of the present invention, comprises the following steps:
(1), first industrial computer measurement and control program (comprising main interface and optimum configurations interface) is started, at the main interface of program by the essential information of the product to be measured typing product database such as (comprise produce numbering, suspension centre code name, model, operating load, impulse stroke, whether pull pin, total kilometres).
(2), start pumping plant 3-3, press the corresponding button at the main interface of industrial computer 1 program, perform travelling control (pull-up or down pressing oil cylinder 3-2), perseverance to be detected is hung 6 and is assembled in fluid pressure drive device 3.When operator presses walking button, corresponding handling procedure exports analog voltage (the corresponding different oil cylinder speed of travel by the D/A passage in data acquisition control system 2, program is adjustable, scope :-10V ~+10V) in fluid pressure drive device 3, make oil cylinder 3-2 increase or decline.
(3), operator detect industrial computer 1 display on the reading of current sensor of main interface display, if current load value is not near null value, enter optimum configurations interface, click " removing load initial point " button, return main interface.
(4), operator presses " starting to measure " button, the automatic measuring and controlling flow process of beginning shown in Fig. 2 in the master routine of industrial computer 1.Start slow pull-up perseverance by data acquisition control system 2 order fluid pressure drive device 3 and hang 6.Industrial computer 1 starts to measure in real time and display force-displacement curve by data acquisition control system 2 simultaneously.Whether industrial computer 1 has by the continuous inquiry of data acquisition control system 2 pulse that in button box 5 of pulling pin, red button produces simultaneously.
(5), in button box 5 is pulled pin in discovery, red button produces pulse, pressing the red button of pulling pin on button box 5 at once makes oil cylinder stop rising, and pull up the latch that perseverance hangs 6, industrial computer 1 is write down the load value that now pressure transducer 4-2 is reflected by data acquisition control system 2 and is load value of pulling pin, industrial computer 1 trace routine is used it for and is judged that whether product is qualified, and simultaneously the positional value that reflected by data acquisition control system 2 of industrial computer 1 recorded bit displacement sensor 4-1 is as impulse stroke starting point;
If in addition when perseverance hangs 6 for the type of pulling pin, whether the latch that operator should observe workpiece 6 loosens simultaneously.Once loosen, press the red button of pulling pin on button box 5 at once and make oil cylinder 3-2 stop rising, and pull up latch.Now industrial computer 1 is write down the load value that now force snesor 4-2 is reflected by data acquisition control system 2 and is load of pulling pin, trace routine is used it for and is judged that whether product is qualified, and simultaneously the positional value that reflected by data acquisition control system 2 of recorded bit displacement sensor 4-1 is as impulse stroke starting point.
(6), operator confirms that industrial computer 1 obtains pulling pin after load value and positional value, and press the green button of pulling pin on button box 5, data acquisition control system 2 controls oil cylinder 3-2 to be continued to rise;
(7), the measurement and control program of industrial computer 1 according to the impulse stroke of pulling pin in position and product information, determine the domain of walk to oil cylinder 3-2 during Product checking.Wait for that oil cylinder 3-2 rises to reach behind position that pull pin position and impulse stroke sum represent (going journey test to terminate), industrial computer 1 starts real-time measurement by data acquisition control system 2 and shows force-displacement curve simultaneously;
(8), go journey to terminate after, industrial computer 1 sends oil cylinder dropping signal by data acquisition control system 2, proportional reversing valve 3-4 action is commutated, makes perseverance hang 6 and slowly unload, until get back to position of pulling pin (backhaul test terminate).Measure and automatically terminate, whether system-computed invariance degree is also up to the standards; Measure and automatically terminate, industrial computer calculates invariance degree and whether is up to the standards.
It is non-type of pulling pin that the present invention hangs 6 when perseverance, and measuring process is basically identical with type of pulling pin.Difference is only not need manually to pull pin, and position of only pulling pin is recorded as impulse stroke starting point and backhaul test terminal.
As shown in Fig. 3, when equipment carries out overload test or the control of walking load: as long as first established load and load time at the main interface of program, real-time PID load feedback control function will be started during data acquisition control system 2 passing ratio reversal valve stretching oil cylinder 3-2, thus realize load automatic, accurately realize, PID control three parameters can change at optimum configurations interface.After completing test, system autostore test data, can generate test report automatically.
More than show and describe ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. a constant hanger computer intelligence detection system, comprise industrial computer, frame, oil cylinder, pumping plant and proportional reversing valve, it is characterized in that: also comprise data acquisition control system, displacement transducer, pressure transducer and button box of pulling pin, frame is provided with oil cylinder, described oil cylinder lower end is connected with perseverance to be measured and hangs, institute's displacement sensors is connected with data acquisition control system the shift value hung for gathering perseverance by data line, described pressure transducer is connected with data acquisition control system the load value hung for gathering perseverance by data line, described industrial computer is connected with data acquisition control system, described pumping plant passing ratio reversal valve is connected with oil cylinder, described data acquisition control system control ratio reversal valve action commutation, the time-out to system when described button box of pulling pin is connected for pulling pin with data acquisition control system and continuation.
2. a kind of constant hanger computer intelligence detection system according to claim 1, it is characterized in that: described data acquisition control system is by measurement and control card and can the connecting terminal box of additional filterings circuit form, and described measurement and control card is integrated with 8 difference analogue input channels, 2 analog output channels and 24 digital channels.
3. a kind of constant hanger computer intelligence detection system according to claim 2, is characterized in that: institute's displacement sensors is connected by the analog input channel of data line with measurement and control card with pressure transducer.
4. a kind of constant hanger computer intelligence detection system according to claim 3, it is characterized in that: described in button box of pulling pin comprise a red button and a green button, two pushbutton switch one end of described button box of pulling pin are connected to the power end of measurement and control card, and the other end is connected to two digital input channels of measurement and control card.
5. a kind of constant hanger computer intelligence detection system according to claim 4, is characterized in that: described measurement and control card adopts NI PCI-6221 measurement and control card.
6. a kind of constant hanger computer intelligence detection system according to claim 5, is characterized in that: institute's displacement sensors adopts LVDT linear displacement transducer, and described pressure transducer adopts radial pull pressure sensor.
7. a constant hanger computer intelligence method of testing, is characterized in that: comprise the following steps:
(1), start pumping plant, press the corresponding button at the main interface of industrial computer program, corresponding handling procedure performs oil cylinder travelling control by data acquisition control system, and perseverance to be detected lifting is assigned to measurement initial position;
(2) start under, controlling in the master routine of industrial computer to measure, start slow pull-up perseverance by data acquisition control system order oil cylinder to hang, industrial computer starts to measure in real time and display force-displacement curve by data acquisition control system simultaneously, and industrial computer constantly inquires about whether there is the pulse that in button box of pulling pin, red button produces by data acquisition control system simultaneously;
(3), in button box is pulled pin in discovery, red button produces pulse, pressing the red button of pulling pin on button box at once makes oil cylinder stop rising, and pull up the latch that perseverance is hung, industrial computer is write down the load value that now pressure transducer is reflected by data acquisition control system and is load value of pulling pin, industrial computer trace routine is used it for and is judged that whether product is qualified, and simultaneously the positional value that reflected by data acquisition control system of industrial computer recorded bit displacement sensor is as impulse stroke starting point;
(4), operator confirms that industrial computer obtains pulling pin after load value and positional value, and press the green button of pulling pin on button box, data acquisition control system controls oil cylinder to be continued to rise;
(5), the measurement and control program of industrial computer is according to the impulse stroke of pulling pin in position and product information, determine the domain of walk to oil cylinder during Product checking, control oil cylinder to rise and reach position that pull pin position and impulse stroke sum represent and complete journey and test, industrial computer starts measurement in real time by data acquisition control system and shows force-displacement curve simultaneously;
(6) after, going journey to terminate, industrial computer sends oil cylinder dropping signal by data acquisition control system, proportional reversing valve action is commutated, perseverance is made to hang slow unloading, until get back to position of pulling pin to complete backhaul test, industrial computer starts to measure in real time and display force-displacement curve by data acquisition control system simultaneously, and measure and automatically terminate, industrial computer calculates invariance degree and whether is up to the standards.
8. a kind of constant hanger computer intelligence method of testing according to claim 7, it is characterized in that: further comprising the steps of before step (1): start industrial computer measurement and control program and comprise main interface and optimum configurations interface, at the main interface of program by the essential information typing product database of product to be measured.
9. a kind of constant hanger computer intelligence method of testing according to claim 8, it is characterized in that: further comprising the steps of between step (1) and step (2): the reading display of industrial computer checking the current sensor of main interface display, if current load value is not near null value, enter optimum configurations interface, click " removing load initial point " button, return main interface.
10. a kind of constant hanger computer intelligence method of testing according to claim 9, it is characterized in that: in step (3), if perseverance is hung as the type of pulling pin, the latch that perseverance hangs should be observed whether loosen simultaneously, once loosen, pressing the red button of pulling pin on button box at once makes oil cylinder stop rising, and pull up the latch that perseverance is hung, industrial computer is write down the load value that now pressure transducer is reflected by data acquisition control system and is load value of pulling pin, industrial computer trace routine is used it for and is judged that whether product is qualified, simultaneously the positional value that reflected by data acquisition control system of industrial computer recorded bit displacement sensor is as impulse stroke starting point.
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| CN201410616380.1A CN104483146A (en) | 2014-11-05 | 2014-11-05 | Intelligent detection system for constant force hanger computer, and test method of constant force hanger computer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111174889A (en) * | 2020-02-04 | 2020-05-19 | 中冶南方连铸技术工程有限责任公司 | Automatic casting blank weighing system and method |
| CN111855177A (en) * | 2020-07-22 | 2020-10-30 | 广州珠江天然气发电有限公司 | Method and system for testing performance of waste heat boiler constant force spring support and hanger and storage medium |
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