CN2334932Y - Hydraulic system real time fault diagnosis device - Google Patents
Hydraulic system real time fault diagnosis device Download PDFInfo
- Publication number
- CN2334932Y CN2334932Y CN 98205469 CN98205469U CN2334932Y CN 2334932 Y CN2334932 Y CN 2334932Y CN 98205469 CN98205469 CN 98205469 CN 98205469 U CN98205469 U CN 98205469U CN 2334932 Y CN2334932 Y CN 2334932Y
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- Prior art keywords
- hydraulic system
- real time
- hydraulic
- converter
- fault diagnosis
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- Expired - Fee Related
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000003750 conditioning effect Effects 0.000 claims description 14
- 239000003381 stabilizer Substances 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000013481 data capture Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a hydraulic system real time fault diagnosis device. A pressure sensor (2) is installed on the operating condition pressure measuring point of a hydraulic transmission system, the signal output end of the pressure sensor (2) is accessed to the input end of an analog to digital converter through a regulating circuit (7), and the output end of the analog to digital converter is connected with a computer (10) via a bus. The utility model can realize the real time monitoring and analysis of each operating parameter status of the hydraulic system to realize the real time status monitoring and fault diagnosis of the hydraulic system. The various occurred accidents and the economic loss caused by accidental shutdown of the hydraulic system can be effectively prevented, and the required time of faults detection can be shorten.
Description
The utility model relates to a kind of hydraulic system real time fail diagnosis apparatus, and hydraulic system is carried out real-time state monitoring and fault diagnosis.
Hydraulic system generally comprises by dynamical element, executive component, control unit, and the Hydraulic Power Transmission System that constitutes of auxiliary device and the hydraulic control system of transmission system being carried out logic control according to manufacturing process, be mechanical, electrical, liquid integrated combination system, its precise structure, principle complexity.But present many hydraulic systems are to move under the situation without any the monitoring of working condition means, and so-called fault diagnosis is just keeped in repair reserving operating mode pressure-measuring point pressure measurement and regular dismounting by artificial timing.Can not accomplish the potential faults of system and to check erroneous ideas at the outset, also just can't prevent the generation of catastrophic discontinuityfailure.Particularly for the hydraulic system that is widely used in the field devices such as iron and steel, chemical industry, because in-situ production environment is abominable, vibratory impulse, high temperature, strong-electromagnetic field interference etc. are all multifactorly may to work the mischief to hydraulic system at any time, and initiating failure.And in case break down, can make the device maintenance personnel feel to have no way of doing it, and to search with handling failure very time-consumingly, this will have a strong impact on production, and cause enormous economic loss to enterprise.
The purpose of this utility model provides a kind of hydraulic system real time fail diagnosis apparatus that can carry out real-time state monitoring and fault diagnosis to hydraulic system, the running state of real-time report system, realization provides foundation to failure prediction, the cause analysis of system for the maintainer searches fault.
The purpose of this utility model realizes by following measure.
A kind of hydraulic system real time fail diagnosis apparatus, on Hydraulic Power Transmission System operating mode pressure-measuring point, pressure transducer is installed, the signal output part of pressure transducer is through the input end of conditioning circuit access A/D converter, and the output terminal of A/D converter is connected with computer by bus.
The input end of A/D converter joins through the control signal output terminal of conditioning circuit and hydraulic control system.Pressure signal is combined with the actual process logical process control signal of hydraulic control system, judge measured force value, so that can identify the inoperative pressure signal that produces because of factors such as fluctuation, impacts, truly reflect the working state of hydraulic system, improve functional reliability.
Conditioning circuit is: voltage-stabiliser tube Tz401 that is in parallel and variable resistor R2 connect with current-limiting resistance R1, and 4 pin of digital to analog converter AD289J, 5 pin are connected on the two ends of variable resistor R2, are parallel with filter capacitor C1, C2 on resistance R 1, the R2 respectively.This circuit makes analog input realize point-to-point full simulation isolation and touches protection altogether; both can prevent from hydraulic control system is produced interference; itself has high anti-jamming capacity, high reliability and self-protection ability again, can bear less than the voltge surge of 2000V with less than the overload voltage of 2000V.
Introduce an embodiment of the present utility model below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the utility model hydraulic system real time fail diagnosis apparatus.
Fig. 2 is conditioning circuit 7 and 8 circuit theory diagrams among Fig. 1.
The utility model hydraulic system real time fail diagnosis apparatus as shown in Figure 1, mainly is made up of pressure transducer 2, conditioning circuit 7 and 8, A/D converter 9, computer 10, monitor unit 11, printer 12.Among the figure: executive component 1, valve class control unit 3, fuel tank 4, pump 5 are represented a Hydraulic Power Transmission System, and 6 pairs of Hydraulic Power Transmission Systems of hydraulic control system are controlled.Pressure transducer 2 is installed on the Hydraulic Power Transmission System operating mode pressure-measuring point, and the operating mode pressure-measuring point can be reserved in the former transmission system, also can reset as required.The signal output part of pressure transducer 2 is through the input end of conditioning circuit 7 access A/D converters 9, and the control signal output terminal of hydraulic control system 6 also inserts the input end of A/D converter through conditioning circuit 8.The output terminal of A/D converter 9 is connected with computer 10 by bus.
Conditioning circuit 7,8 is connected with resistance R 1 after voltage-stabiliser tube Tz401 and variable resistor R2 are in parallel as shown in Figure 2, and 1 metering function of resistance R is protected whole conditioning circuit, and voltage-stabiliser tube Tz401 plays protection and bypass effect.Have 4 pin of the digital to analog converter AD289J of the full analog functuion of three ends, the two ends that 5 pin are connected on variable resistor R2, OUT9, OUT10 are two output terminals of AD289J.Be parallel with filter capacitor C1, C2 on resistance R 1, the R2 respectively.Whole conditioning circuit is adjusted magnification factor by resistance R 2.
The control signal of the pressure signal of pressure transducer 2 outputs and hydraulic control system 6 outputs behind conditioning circuit 7,8, enters A/D converter 9 and carries out analog-to-digital conversion respectively, and analog signal conversion is become digital signal.Computer 10 control A/D converters 9 carry out the real time high-speed data capture, quantize and the pretreatment in early stage through data, are stored to the global data memory block.To the current collection result in the global data memory block carry out comprehensively, RT rael time, in conjunction with the current operation stage state of hydraulic system, accurately and in real time reflect the hydraulic system present behavior, the graphic form of understanding easily with the user is shown in display monitor central monitoring system 11, or, realize real-time state monitoring to hydraulic system by printer 12 outputs.Computer 10 is on the basis to data signal analysis and processing, the logistic diagnosis of combined process process and fault diagnosis expert system, the current hydraulic work system state of RT rael time, break down immediately as hydraulic system and to report to the police, and real-time diagnosis has contingent fault, failure cause and fault happening part etc., offers the user with report form.Simultaneously, fault data is stored in the Mishap Database, so that inquiry.
The utility model hydraulic system real time fail diagnosis apparatus; by hydraulic system respectively being moved real-time monitoring, the analysis of parameter state; realized real-time state monitoring and fault diagnosis, thereby can effectively prevent the generation of all kinds of accidents of hydraulic system and the economic loss that hang-up is brought hydraulic system.Information such as relevant failure cause, fault happening part are provided for the maintainer, have shortened greatly and found out the fault needed time.Improved Maintenance of Hydraulic System efficient, reduced maintenance cost, guaranteed to produce and can normally carry out, economic benefit is very remarkable.
Claims (3)
1. hydraulic system real time fail diagnosis apparatus, it is characterized in that: pressure transducer (2) is installed on Hydraulic Power Transmission System operating mode pressure-measuring point, the signal output part of pressure transducer (2) is through the input end of conditioning circuit (7) access A/D converter (9), and the output terminal of A/D converter (9) is connected with computer (10) by bus.
2. hydraulic system real time fail diagnosis apparatus according to claim 1 is characterized in that: the input end of described A/D converter (9) joins through conditioning circuit (8) each control signal output terminal with hydraulic control system (6).
3. hydraulic system real time fail diagnosis apparatus according to claim 1 and 2, it is characterized in that: described conditioning circuit (7) (8) is: voltage-stabiliser tube Tz401 that is in parallel and variable resistor R2 connect with current-limiting resistance R1,4 pin of digital to analog converter AD289J, 5 pin are connected on the two ends of variable resistor R2, are parallel with filter capacitor C1, C2 on resistance R 1, the R2 respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98205469 CN2334932Y (en) | 1998-05-29 | 1998-05-29 | Hydraulic system real time fault diagnosis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98205469 CN2334932Y (en) | 1998-05-29 | 1998-05-29 | Hydraulic system real time fault diagnosis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2334932Y true CN2334932Y (en) | 1999-08-25 |
Family
ID=33961848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98205469 Expired - Fee Related CN2334932Y (en) | 1998-05-29 | 1998-05-29 | Hydraulic system real time fault diagnosis device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2334932Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865181A (en) * | 2010-06-29 | 2010-10-20 | 中国传媒大学 | Automatic diagnostic system of hydraulic system applied to stage driving |
| CN102338137A (en) * | 2011-08-25 | 2012-02-01 | 中联重科股份有限公司 | Method for detecting hydraulic valve, controller and device, method and device for detecting fault of hydraulic circuit and fault processing system |
| CN105909614A (en) * | 2016-05-12 | 2016-08-31 | 张国云 | Abrasion particle online monitoring method through adsorption and adjacent capacitance |
| CN106644256A (en) * | 2016-11-24 | 2017-05-10 | 安徽皖拓自动化有限公司 | Pressure sensor fault diagnosis device and diagnosis method thereof |
-
1998
- 1998-05-29 CN CN 98205469 patent/CN2334932Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865181A (en) * | 2010-06-29 | 2010-10-20 | 中国传媒大学 | Automatic diagnostic system of hydraulic system applied to stage driving |
| CN101865181B (en) * | 2010-06-29 | 2012-09-26 | 中国传媒大学 | Automatic diagnostic system of hydraulic system applied to stage driving |
| CN102338137A (en) * | 2011-08-25 | 2012-02-01 | 中联重科股份有限公司 | Method for detecting hydraulic valve, controller and device, method and device for detecting fault of hydraulic circuit and fault processing system |
| CN105909614A (en) * | 2016-05-12 | 2016-08-31 | 张国云 | Abrasion particle online monitoring method through adsorption and adjacent capacitance |
| CN106644256A (en) * | 2016-11-24 | 2017-05-10 | 安徽皖拓自动化有限公司 | Pressure sensor fault diagnosis device and diagnosis method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BAOSHAN IRON & STEEL CO., LTD. Free format text: FORMER NAME OR ADDRESS: BAOSHAN STEEL GROUP IRON AND STEEL CO LTD |
|
| CP03 | Change of name, title or address |
Address after: 201900, Fujin Road, Shanghai, Baoshan District orchard Patentee after: Baoshan Iron & Steel Co., Ltd. Address before: 201900 No. 1, middle front road, Baoshan District Shanghai factory Patentee before: Baoshan Iron & Steel (Group) Co., Ltd. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |