CN206257111U - The pressure sensitive device of hydraulic electric control system - Google Patents
The pressure sensitive device of hydraulic electric control system Download PDFInfo
- Publication number
- CN206257111U CN206257111U CN201621155145.XU CN201621155145U CN206257111U CN 206257111 U CN206257111 U CN 206257111U CN 201621155145 U CN201621155145 U CN 201621155145U CN 206257111 U CN206257111 U CN 206257111U
- Authority
- CN
- China
- Prior art keywords
- pressure
- pressure sensor
- control system
- electric control
- pressure sensitive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of pressure sensitive device of hydraulic electric control system, hydraulic electric control system is provided with pressure sensitive unit on fluid pressure line, the pressure sensitive unit output pressure signal is to pressure closed loop control loop, the pressure sensitive unit includes primary pressure sensor and standby pressure sensor, the primary pressure sensor and standby pressure sensor are input into the switching for exporting all the way by two-way and switch output pressure signal to pressure closed loop control loop, the primary pressure sensor and standby pressure sensor output signal to PLC, the PLC output switchings signal is to switching switch.The utility model is pressure sensor automatic switchover system, using double pressure detecting points control model standby each other, and utilizes automatic switchover system, is always ensured that and uses fault-free online, and is always ensured that the high accuracy of Stress control, responds fast and good stability.
Description
Technical field
The utility model is related to electrichydraulic control field, more particularly in electrohydraulic control system pressure sensor automatic switchover
System.
Background technology
At present, the control system of domestic and international Hot Strip Rolling milling equipment is essentially all electrohydraulic control system, all of
Accurate control section（Such as kink, HGC roll gap, template roller）Deng the double servo closed controls for being all position and pressure feedback, with
Modern Rolling Mill to rolling kind and the continuous improvement of final product quality requirement, precision and response speed to key equipment control will
Ask and also improve constantly.Wherein, the precision of pressure detecting is most important to the stability and precision of whole control system.
But in actual production process, the electrical equipment catastrophic discontinuityfailure of pressure sensor often occurs, or violent
There is the fluctuation of pressure detecting signal when vibration, hydraulic system fluctuation, electromagnetic interference, build-up of pressure value of feedback precision
Decline, or even mistake, cause control accuracy to reduce, or even triggering Wrong control action, cause piling of steel stopping accident during rolling,
And equipment damage accident, the steady production to producing line causes strong influence.
The content of the invention
Because the catastrophic discontinuityfailure of pressure sensor, or accuracy of detection error cause in the utility model solution production process
Wrong control action, caused piling of steel shuts down and equipment damage accident, be always ensured that the high accuracy of Stress control, response high and
High stability.
To achieve these goals, the technical solution adopted in the utility model is：The pressure sensitive dress of hydraulic electric control system
Put, hydraulic electric control system is provided with pressure sensitive unit, the pressure sensitive unit output pressure signal to liquid on fluid pressure line
The pressure closed loop control loop of voltage control system, the pressure sensitive unit includes that primary pressure sensor and standby pressure are sensed
Device, the primary pressure sensor and standby pressure sensor are input into the switching for exporting all the way by two-way and switch output pressure signal
To pressure closed loop control loop, the primary pressure sensor and standby pressure sensor output signal to PLC, and the PLC is defeated
Go out switching signal to switching switch.
The PLC is connected with warning device.
The PLC is provided with wireless communication unit, and the wireless communication unit is logical with far-end server and/or mobile device
Letter.
The pressure sensitive unit is provided with multiple, is separately mounted on hydraulic valve platform, cylinder, pipeline.
The primary pressure sensor and standby pressure sensor by threeway or adapter be arranged on hydraulic valve platform, cylinder,
On pipeline.
The utility model is pressure sensor automatic switchover system, uses double pressure detecting points control mould standby each other
Formula, and automatic switchover system is utilized, it is always ensured that and uses fault-free online, and is always ensured that the high accuracy of Stress control, response
Fast and good stability.
By taking the hot finisher kink of hot rolling 2250 as an example, using this system after, can make loop tension control accuracy keep it is good
It is good, within positive and negative 3mpa, reduce because of piling of steel accident caused by kink pressure sensor failure or fluctuation problem.And this is
The use of system can also be greatly shortened the process time of pressure sensor failure, every fault time（Treatment piling of steel, changes pressure
Sensor etc.）Average about 60 minutes, after this system, pressure sensor can realize that failure automatically switches and alarms, Awaiting Overhaul
Time changes failure part again, can be every year that producing line reduces considerable fault time.Similar other electrichydraulic control equipment of producing line are all
There are such potential faults, this system can be promoted in accordance with the law, to steady production, failure is greatly decreased can obtain good effect.
Brief description of the drawings
The content to every width accompanying drawing expression in the utility model specification is briefly described below：
Fig. 1 is the pressure sensitive device block diagram of hydraulic electric control system.
Specific embodiment
Hydraulic electric control system is provided with pressure sensitive unit on fluid pressure line, and pressure sensitive unit is typically mounted at hydraulic valve
On the relevant devices such as platform, cylinder, pipeline, as shown in figure 1, original single pressure sensor test point is transformed double pressure by the utility model
Sensor test point, two sensor the using and the reserved, primary pressure sensor and standby pressure sensor pass through threeway or switching
Head is arranged on hydraulic valve platform, cylinder, pipeline.
Primary pressure sensor and standby pressure sensor are input into the switching for exporting all the way by two-way and switch output pressure letter
Number PLC, PLC output switchings are outputed signal to pressure closed loop control loop, primary pressure sensor and standby pressure sensor
Signal is connected with warning device to switch, PLC is switched, and can be alarmed in abnormal signal, and PLC is provided with radio communication list
Unit, wireless communication unit and far-end server and/or mobile device communication, it is also possible to send to distal end quotation signal, it is convenient
Staff safeguards in time.
Based on the pressure sensitive device of above-mentioned hydraulic electric control system, double pressure are designed in PLC control system and program
The automatic switchover system of sensor：Online real-time judge is advocated peace for two states of pressure sensors, and judgment mode is by pressure
The technical parameters such as the feedback current of force snesor, voltage change situation, the rate of change of feedback pressure are on-line automatic to judge its yuan
Whether part breaks down, and whether the speed of response and feedback accuracy are in normal range (NR), if it is determined that master reference state has exception, and
Standby pressure sensor state is normal, then quickly switch to standby pressure sensor and use, and send alarm to host computer
Information.
The utility model is exemplarily described above in conjunction with accompanying drawing, it is clear that the utility model is implemented not to be received
The limitation of aforesaid way, as long as employing changing for the various unsubstantialities that method design of the present utility model and technical scheme are carried out
Enter, or it is not improved by it is of the present utility model design and technical scheme directly apply to other occasions, in the utility model
Protection domain within.
Claims (5)
1. the pressure sensitive device of hydraulic electric control system, hydraulic electric control system is provided with pressure sensitive unit, institute on fluid pressure line
State the pressure closed loop control loop of pressure sensitive unit output pressure signal to hydraulic electric control system, it is characterised in that：The pressure
Power sensing unit includes primary pressure sensor and standby pressure sensor, and the primary pressure sensor and standby pressure sensor are logical
Cross the two-way switching that exports all the way of input and switch output pressure signal to pressure closed loop control loop, the primary pressure sensor and
Standby pressure sensor outputs signal to PLC, and the PLC output switchings signal is to switching switch.
2. the pressure sensitive device of hydraulic electric control system according to claim 1, it is characterised in that：The PLC is connected with
Warning device.
3. the pressure sensitive device of hydraulic electric control system according to claim 1 and 2, it is characterised in that：The PLC is provided with
Wireless communication unit, the wireless communication unit and far-end server and/or mobile device communication.
4. the pressure sensitive device of hydraulic electric control system according to claim 3, it is characterised in that：The pressure sensitive list
Unit is provided with multiple, is separately mounted on hydraulic valve platform, cylinder, pipeline.
5. the pressure sensitive device of the hydraulic electric control system according to claim 1,2 or 4, it is characterised in that：The main pressure
Force snesor and standby pressure sensor are arranged on hydraulic valve platform, cylinder, pipeline by threeway or adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621155145.XU CN206257111U (en) | 2016-10-31 | 2016-10-31 | The pressure sensitive device of hydraulic electric control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621155145.XU CN206257111U (en) | 2016-10-31 | 2016-10-31 | The pressure sensitive device of hydraulic electric control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206257111U true CN206257111U (en) | 2017-06-16 |
Family
ID=59024630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621155145.XU Expired - Fee Related CN206257111U (en) | 2016-10-31 | 2016-10-31 | The pressure sensitive device of hydraulic electric control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206257111U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402090A (en) * | 2016-10-31 | 2017-02-15 | 马鞍山钢铁股份有限公司 | Pressure induction device of hydraulic electric control system and control method of pressure induction device |
| WO2020237825A1 (en) * | 2019-05-28 | 2020-12-03 | 深圳市华星光电半导体显示技术有限公司 | Sensor arrangement method and arrangement structure |
| CN112666899A (en) * | 2019-10-16 | 2021-04-16 | 新特能源股份有限公司 | Control method and system of regulating valve group, electronic equipment and storage medium |
-
2016
- 2016-10-31 CN CN201621155145.XU patent/CN206257111U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402090A (en) * | 2016-10-31 | 2017-02-15 | 马鞍山钢铁股份有限公司 | Pressure induction device of hydraulic electric control system and control method of pressure induction device |
| WO2020237825A1 (en) * | 2019-05-28 | 2020-12-03 | 深圳市华星光电半导体显示技术有限公司 | Sensor arrangement method and arrangement structure |
| CN112666899A (en) * | 2019-10-16 | 2021-04-16 | 新特能源股份有限公司 | Control method and system of regulating valve group, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106402090B (en) | The pressure sensitive device and its control method of hydraulic electric control system | |
| CN206257111U (en) | The pressure sensitive device of hydraulic electric control system | |
| CN102343426B (en) | On-line fault judgment and early-warning method for displacement sensor based on dynamic soft reduction | |
| CN108233823B (en) | Fault-tolerant proportional coordination control method of multi-motor servo drive system under coupled control structure | |
| CN107939577A (en) | A kind of hydrogovernor proportional servo valve on-line fault diagnosis method | |
| CN102928709A (en) | Three-phase harmonic wave-based method and system for detecting reactive compensation capacitor faults | |
| CN203786252U (en) | Electric automobile electrical insulation detection system | |
| CN206311669U (en) | load resistance detection circuit | |
| CN107631828A (en) | Double pressure transmitter breakdown judges and switching method | |
| CN108114990B (en) | A kind of control method preventing milling train stall overload protection | |
| CN105182137B (en) | Method and apparatus for the failure for diagnosing the anti-icing heating unit of electricity | |
| CN108023332A (en) | A kind of under-voltage/over-voltage protection apparatus and method of high response servo-drive | |
| CN103309274B (en) | Forging hydraulic press control method based on dual monitoring systems | |
| CN215931927U (en) | Speed measuring device for coal feeder | |
| CN205057679U (en) | Digit control machine tool early warning system | |
| CN206848793U (en) | Oversized thin-wall part five-shaft numerical control system of processing | |
| CN105021942B (en) | A kind of zero line docking looped network fault detection method and system | |
| CN105033760A (en) | Pre-warning system of numerical control machine tool | |
| CN104324950B (en) | A kind of rolling system and its method | |
| CN201266837Y (en) | Automatic tracking compensation arc-extinguishing device for embedded work control model with touch screen | |
| CN207249096U (en) | A kind of electric energy meter monitoring system | |
| CN208655394U (en) | Voltage transformer harmonic elimination apparatus | |
| CN208059795U (en) | Banding machine breadth on-line real-time measuremen device | |
| CN207248094U (en) | A kind of measuring device of coil car position | |
| CN207503014U (en) | A kind of equipment of parallel control tensometer excitation signal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 243003 Department of intellectual property right of Hunan West Road No. 8 technology center, Ma'anshan City, Anhui Province Patentee after: Ma'anshan Iron and Steel Co., Ltd. Address before: 243003 Hunan Anhui West Road, No. 8 technology center, Intellectual Property Department Patentee before: Ma'anshan Iron and Steel Co., Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 243003 8 Jiuhua Road, Yushan, Ma'anshan, Anhui Patentee after: Ma'anshan Iron and Steel Co., Ltd. Address before: 243003 intellectual property department, technology center, No. 8 Hunan West Road, Yushan, Ma'anshan, Anhui Patentee before: Ma'anshan Iron and Steel Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20201031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |