CN114183334B - Method for debugging and inhibiting zero drift of radial plunger pump amplification plate - Google Patents
Method for debugging and inhibiting zero drift of radial plunger pump amplification plate Download PDFInfo
- Publication number
- CN114183334B CN114183334B CN202111294755.3A CN202111294755A CN114183334B CN 114183334 B CN114183334 B CN 114183334B CN 202111294755 A CN202111294755 A CN 202111294755A CN 114183334 B CN114183334 B CN 114183334B
- Authority
- CN
- China
- Prior art keywords
- zero
- main pump
- data
- servo valve
- port
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 11
- 230000003321 amplification Effects 0.000 title abstract description 14
- 238000003199 nucleic acid amplification method Methods 0.000 title abstract description 14
- 238000012937 correction Methods 0.000 claims abstract description 25
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000012300 Sequence Analysis Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
Abstract
The invention discloses a method for debugging and inhibiting zero drift of a radial plunger pump amplification plate, which comprises the following steps: analyzing the display condition of a display lamp on a panel of an amplifying plate of the main pump, and determining the reason of the alarm fault; detecting a servo valve of a main pump and a mechanical zero position of the main pump through port communication of an amplifying plate; and comparing the measured data with the standard zero data, calculating the deviation value of the detected data and the standard zero data, and carrying out zero correction according to the deviation value. According to the invention, by correcting the mechanical zero position and the electrical zero position of the equipment, the zero drift of the mechanical zero position and the electrical zero position is solved, the accurate corresponding relation between the mechanical zero position and the electrical zero position is recovered and maintained, and the accurate control of the main pump is realized.
Description
Technical Field
The invention belongs to the technical field of electro-hydraulic accurate control of heavy industry forging equipment, and particularly relates to a method for debugging and inhibiting zero drift of a radial plunger pump amplification plate.
Background
In the actual production process, the accurate matching of the mechanical system and the electrical system of the equipment is an important factor for ensuring that the equipment produces high-quality products, and is also the basic guarantee that all the functions of the equipment reach the standard.
The 3000 ton oil press used in the special steel workshop is built and used in 2003 by the German PANK company, 8 main pumps (750 radial plunger pumps) are all the fundamental guarantee of the normal and quick operation of the oil press, but in the long-term use process, the fault that the oil press cannot be started due to the deviation of the alarm control of the main pump in the starting process of the 3000 ton oil press is caused due to the increasing of the compensating deviation of the mechanical structure abrasion and the electric control system, so that the shutdown and the production stop are caused.
Disclosure of Invention
The invention aims to provide a method for debugging and inhibiting zero drift of a radial plunger pump amplification plate, which solves the zero drift of a mechanical zero and an electrical zero of equipment by correcting the mechanical zero and the electrical zero of the equipment, restores and maintains the accurate corresponding relation of the mechanical zero and the electrical zero, and realizes the accurate control of a main pump.
In order to achieve the above purpose, the technical solution adopted by the invention is as follows:
the method for debugging and inhibiting zero drift of the amplification plate of the radial plunger pump comprises the following steps:
analyzing the display condition of a display lamp on a panel of an amplifying plate of the main pump, and determining the reason of the alarm fault;
detecting a servo valve of a main pump and a mechanical zero position of the main pump through port communication of an amplifying plate;
and comparing the measured data with the standard zero data, calculating the deviation value of the detected data and the standard zero data, and carrying out zero correction according to the deviation value.
Further, detecting and recording measurement data of a 1 port and a 2 port of the amplifying plate, wherein the 1 port is used for feeding back the position of the servo valve and is a voltage signal, and the voltage value represents the position of the servo valve of the main pump; the 2 port is used for feeding back the main pump rotation angle degree, and is a voltage signal, and the value of the voltage signal represents the magnitude of the main pump rotation angle degree feedback position.
Further, when the main pump is stopped, the servo valve is biased to one side, and if the mechanical zero position exceeds or is less than the position zero position data, the main pump is judged to have the offset of the mechanical zero position; and if the main pump rotation angle deviates to one side and the deviation value exceeds or is smaller than the angle zero signal, the deviation of the angle zero position is judged.
And further, adding the deviation value to the current main pump position parameter in the amplifying board, utilizing the amplifying board communication software REXROTH to communicate with the amplifying board, inputting the added data parameter into the amplifying board, measuring the 1 port, detecting a voltage feedback signal of the main pump position parameter, and finishing zero position parameter correction when the voltage feedback signal is classified as position zero position data.
And further, adding the deviation value to the current rotation angle degree in the amplifying board, communicating with the amplifying board by utilizing amplifying board communication software REXROTH, inputting the added data parameters into the amplifying board, detecting a voltage feedback signal of the rotation angle degree, and finishing zero parameter correction when the voltage feedback signal is classified as rotation angle zero data.
Further, if the position zero position of the main pump electric system shifts, the zero position parameter of the position zero position shift of the electric system is required to correct; and detecting and recording measurement data on an Ia port of the amplifying plate, wherein the Ia port is used for feeding back the coil current of the servo valve and is a voltage signal, and the value of the voltage signal represents the coil current of the proportional servo valve.
And further, adding the deviation value to the current of the servo valve coil in the amplifying plate, communicating with the amplifying plate by utilizing amplifying plate communication software REXROTH, inputting the added data parameters into the amplifying plate, measuring an Ia port by using a universal meter, detecting a voltage feedback signal of the current value of the servo valve coil, and finishing zero parameter correction of the current of the servo valve coil when the voltage feedback signal is classified as standard current zero data.
Further, fine adjustment is repeatedly performed on parameters of the amplifying board for a plurality of times until feedback signals of the mechanical zero position and the electrical zero position are all classified as standard zero position data, and at the moment, the mechanical zero position and the electrical zero position of the main pump are completely overlapped with the standard zero position data, so that zero position deviation correction is completed.
Further, after zero correction is completed, the main pump is started, and parameter detection and gradual fine adjustment are respectively carried out on the opening of 50% and the opening of 100% of the output opening.
The technical effects of the invention include:
1. the method for inhibiting zero drift in the main pump zero debugging has complete maintenance basis in the aspect of radial plunger pump debugging through the attack on the debugging technology.
Before the invention, if a main pump (750 radial plunger pump) of the 3000 ton oil press fails to start, technical maintenance personnel do not have complete theoretical support maintenance, only the servo valve and the sensor can be replaced randomly, and a main pump system cannot be repaired fundamentally.
2. According to the invention, by correcting the mechanical zero position and the electrical zero position of the equipment, the zero drift of the mechanical zero position and the electrical zero position is solved, the accurate corresponding relation between the mechanical zero position and the electrical zero position is recovered and maintained, and the accurate control of the main pump is realized.
The invention solves the problems of the old press that the deflection control error of the main pump is increased and the pressure of the main cylinder of the hydraulic press is reduced due to the accurate control drop caused by the use of the old press for many years, realizes the accurate control of the main pump, and indirectly ensures the accuracy and the production efficiency of the forged product.
3. When the main pump fails, the failure point can be quickly determined, so that the maintenance efficiency is improved, the failure rate is reduced, and the maintenance cost is saved.
After the invention is applied, a complete theoretical system for controlling the Lishile 750 plunger pump is established, the original passive maintenance of the main pump is changed into the current active maintenance, the fault repair time caused by the main pump is greatly reduced, the maintenance time is basically changed from the past 3 days to 1 day, meanwhile, the fault point can be rapidly determined when the main pump fails, the maintenance efficiency is improved, and the accuracy of mechanical action and electrical action of the 3000 ton main pump is improved through autonomous zero correction and debugging, the input pressure is constant, and the product quality and the production efficiency of the produced product are indirectly ensured.
Before the application of the present invention, the probability of failure recovery of the 3000 ton Lishile main pump was less than one fifth.
Detailed Description
The following description fully illustrates the specific embodiments of the invention to enable those skilled in the art to practice and reproduce it.
The invention carefully analyzes and debugs the failure which can not be started due to the deviation of the alarm control of the main pump, carries out actual tests on site and carries out statistical measurement on data, and successfully solves the technical problem. The accurate matching of the machinery and the electricity of the equipment is firstly that the accuracy and the synchronism of the feedback sampling point are high and low, when the mechanical position and the electric detection feedback position are synchronous in a complete linear proportion, the perfect matching of the mechanical action and the electric control at the moment can be determined, no deviation or delay phenomenon exists, and the accurate corresponding relation between the mechanical zero position and the electric zero position can be said to be the basis and the reference point of the synchronism. Because of the influence of on-site environmental factors and the mechanical loss of long-time use, the mechanical zero position and the electrical zero position gradually have zero position drift and cannot be correspondingly controlled to deviate, so that the correction of the mechanical zero position and the electrical zero position of the equipment is carried out by debugging, and the recovery of the corresponding relation is a key technology for the daily maintenance of the forging equipment.
1. And (3) corresponding starting detection conditions and theoretical analysis of alarm fault reasons when the main pump is started.
Taking a 750 radial plunger pump as a main pump as an example, when the work is started, the special VT12350 control amplification board can detect electric feedback signals (belonging to negative feedback signals) on the position of the main pump, the pressure and the position of the hydraulic servo valve one by one, the actual physical position and the pressure of the main pump and the hydraulic servo valve are judged by detecting the numerical value of the negative feedback signals, an analog signal is calculated and output through a PID algorithm to drive the coil action of the hydraulic servo valve to be started, the negative feedback closed-loop action is executed, the corresponding pressure is built for the deflection of the main pump, and the deflection degree of the main pump for starting 5% is ensured to operate in a self-circulation mode under the no-load condition.
In the actual production process, along with the extension of equipment service time, mechanical abrasion causes drift of a mechanical zero point position, meanwhile, the influence of temperature and environment causes corresponding drift of a zero point position detected by an electric sensor, when a drift deviation value between the mechanical position and the mechanical position is overlarge, an asynchronous phenomenon appears in the position fed back by the electric sensor and the mechanical position (instant actual action position), a control amplification board and a PLC upper system can not accurately predict and control time state points of pressure deflection and pressure relief backswing of a main pump, namely, a control deviation phenomenon appears, when the control deviation error is large, the control of the main pump by the PLC system and the main pump amplification board is out of control, and the main pump can not normally deflect to establish pressure operation fault error.
2. And analyzing the meaning of the numerical code of the alarm signal and solving the technical principle of the fault thought.
The amplification board of the main pump plays a role in controlling the operation of the main pump, the panel of the amplification board prompts alarm information in different modes of the on-off sequence of a group of four-bit LED indicator lamps according to different alarm contents, a conclusion is obtained through the on-off sequence analysis of the indicator lamps, the on-off sequence is a group of regular binary codes, namely 8421 codes in an electrical system, and the alarm prompt contents are that the mechanical zero point and the electrical zero point deviation of the main pump are serious through interpretation of fault error prompt information, namely 1, 2 and 4LED lamps are on-site in response, and 3 lamps are off.
After the alarm content is read, reasoning solving measures from the mechanical aspect and the electrical aspect respectively, firstly, mechanically surveying the mechanical structural state of the actual working condition of the main pump on site, and checking whether the stopped main pump is at a reset mechanical zero point or not, if the stopped main pump is correctly reset and has no obvious clamping mark in the mechanical action aspect, the main pump is proved to have no large mechanical fault; the main pump is caused by the zero drift of the position of the electric system, and the deviation of the electric zero is excessive, so that the control system deviates from the parking state. At this time, the repair thought is to correct the zero drift of the main pump by adjusting the electric system, the magnitude of the feedback signal of the electric system is represented by the linear proportion of the voltage or the current, if the feedback signal is to be corrected, the difference between the actual feedback voltage and the feedback voltage of the mechanical zero is calculated, and then the difference is eliminated by corresponding hardware and control quantity, so that the electric zero can be corrected.
3. The zero position correction implementation process principle.
The VT12350 amplifying plate end face provides voltage measurement data of ports, voltage data of a servo valve position, a main pump position and a main pump pressure can be detected and fed back in real time, and voltage values can be detected by using universal meter direct current voltage gears to the 1 port (servo valve position feedback), the 2 port (main pump position feedback) and the Ia port (servo valve coil current value). The actual feedback value should be 0-10V direct current voltage signal, and the standard overflow upper limit of the electrical system is 13V, if the feedback voltage exceeds 10V, the feedback overflow can be considered to occur, the main pump should stop and restore the zero position, and the zero position corresponds to the electrical zero position-10V signal.
The deviation of the actual electric sensor zero position signal and the actual zero position of the main pump mechanical zero position due signal value can be calculated by comparing the measured value with the standard value, the calculated result is estimated and filled into a parameter page in a percentage mode and is downloaded to an amplifying board (in amplifying board special software REXROTH, the deviation value is compensated in a mode of changing feedback proportion), the deviation value of the mechanical zero position of the main pump and the zero position of an electric appliance in site is tested, parameters are continuously modified according to the result until the 1 port (valve position feedback) and 2 port (pump position feedback) feedback signals of the amplifying board are classified as-10V, at the moment, the electric zero position of a valve bank, the electric zero position of the pump, the actual zero position of a main pump and a servo valve are correspondingly matched, at the moment, the valve bank is started, and at the output opening 50% and the opening 100% of the main pump is respectively subjected to gradual fine adjustment setting of the parameter detection method, so that the accurate control of the Lishile main pump can be completely realized.
The communication software REXROTH of the amplifying board special for Li Yongli Shile communicates with the corresponding main pump control amplifying board, a parameter setting page is opened, the original parameters are uploaded to the amplifying board, the zero compensation value of the pump is 0.x% and the zero compensation value of the proportional servo valve is 0.y%, the deviation percentage is roughly calculated according to the actual deviation (deviation percentage=deviation value/total value is 0.001), and the calculated deviation value result is superimposed on the zero compensation value and is downloaded to the amplifying board. After downloading, the electrical feedback signals of the servo valve and the main pump are corrected to be close to or equal to-10V, at the moment, the deviation amount of the mechanical zero position of the main pump and the zero position of an electrical appliance in the site is tested again, the parameters are finely adjusted until the feedback signals of the 1 port (valve position feedback) and the 2 port (pump position feedback) of the amplifying plate are classified to be-10V, at the moment, the electrical zero position of the valve group and the electrical zero position of the pump are correspondingly matched with the actual zero positions of the main pump and the servo valve, and the zero position adjustment is successful.
The method for debugging and inhibiting zero drift of the radial plunger pump amplifying plate comprises the following specific steps:
step 1: the method comprises the steps of performing mechanical and electrical inspection on a main pump (750 radial plunger pump) in a hydraulic station of an oil press, observing an amplifying plate (a VT12350 amplifying plate is selected) of the main pump, and determining an alarm fault reason through the display condition of a display lamp on a panel of the amplifying plate;
step 2: detecting a servo valve of a main pump and a mechanical zero position of the main pump through port communication of an amplifying plate;
and detecting the 1 port, the 2 port and the Ia port of the amplifying board by using a universal meter direct current voltage gear and recording measurement data, thereby judging whether zero offset occurs.
The 1 port is used for position feedback of the proportional servo valve and is a voltage signal, and the voltage value represents the position of the servo valve (proportional servo valve) of the main pump; when the main pump stops, the proportional servo valve is biased to one side, the corresponding zero signal is direct current-10V, and if the zero signal exceeds or is less than the value, the zero position is biased.
The 2 port is used for feeding back the rotation angle degree of the main pump, and is a voltage signal, the value of the voltage signal represents the magnitude of the feedback position of the rotation angle degree of the main pump, when the main pump stops, the rotation angle of the main pump deviates to one side, the corresponding zero signal is direct current-10V, and if the value exceeds or is smaller than the value, zero deviation is judged;
the Ia port is used for feeding back the coil current of the proportional servo valve and is a voltage signal, and the value of the Ia port represents the coil current of the proportional servo valve (1V represents 1A); when the main pump is stopped, the corresponding zero signal is direct current-0V, and if the value is exceeded or is less than the value, zero deviation is judged.
Step 3: and comparing the measured data with the standard zero data, calculating the deviation value of the detected data and the standard zero data, and carrying out zero correction according to the deviation value.
The main pump is deviated in mechanical zero position, and when the control system deviates from a stop state due to overlarge deviation, the deviation of the mechanical zero position is corrected.
And comparing the position zero position data (standard zero position electric signal) of the proportional servo valve of the main pump with the position parameter (detection data) of the main pump at a port 1, calculating the deviation value of the position parameter of the main pump and the standard position zero position data, if the actual measurement signal is-11V, indicating that the difference is-1V, namely the deviation value is-1%, and calculating the result to be used for modifying the amplifying board to correct the zero position parameter of the proportional servo valve.
Specific operation of VT12350 amplification board: and adding the deviation value to the current main pump position parameter in the amplifying board, utilizing the amplifying board communication software REXROTH to communicate with the amplifying board, inputting the added data parameter into the amplifying board, measuring a 1 port by using a universal meter, detecting a voltage feedback signal of the main pump position parameter, finishing zero position parameter correction when the voltage feedback signal is classified as position zero position data (-10V), adding the voltage feedback signal and the deviation value and inputting the added data parameter into the amplifying board if the voltage feedback signal is not classified as position zero position data, and continuing zero position parameter correction.
And (3) comparing the rotation angle degree (standard zero electric signal) of the rotation angle of the main pump with the rotation angle degree (detection data) of the 2 ports to calculate the deviation value of the rotation angle degree and the standard zero data, if the actual measurement signal is-9V, the deviation value is 1V, namely the deviation value is 1%, and the calculated result is used for correcting the zero parameter of the comparative example servo valve on the amplifying board.
Specific operation of VT12350 amplification board: adding the deviation value with the current angle of rotation in the amplifying board, communicating with the amplifying board by utilizing amplifying board communication software REXROTH, inputting the added data parameters into the amplifying board, measuring a 2 port by using a universal meter, detecting a voltage feedback signal of the angle of rotation, and finishing zero parameter correction when the voltage feedback signal is classified as angle zero data (-10V); if the zero position data is not classified as the angle zero position data, the voltage feedback signal is added with the deviation value and is input into the amplifying board, and zero position parameter deviation correction is continued.
The voltage corresponding to the rotation angle of the main pump and the proportional servo valve of the main pump is +10V when the rotation angle of the main pump is full, the deviation value can be measured to correct the full deviation, and the full deviation value actually corresponds to the feedback signal of 0V because the main pump of the 3000-ton hydraulic station only deflects on one side.
If the position zero position of the main pump shifts, the control system deviates from the parking state due to the fact that the deviation of the electric zero position is too large. Then the voltage data of the servo valve coil needs to be detected, and the zero parameter of the zero drift of the position of the electrical system is corrected.
And the standard zero position data of the coil current of the proportional servo valve is direct current-0V, the detection data of the Ia port are compared, the deviation value of the detection data and the standard zero position data is calculated, and zero position parameter deviation correction is carried out according to the deviation value. Specific operation of VT12350 amplification board: adding the deviation value with the current servo valve coil current in the amplifying board, communicating with the amplifying board by utilizing amplifying board communication software REXROTH, inputting the added data parameters into the amplifying board, measuring an Ia port by using a universal meter, detecting a voltage feedback signal of the servo valve coil current value, and finishing zero parameter correction of the servo valve coil current when the voltage feedback signal is classified as standard current zero data (-10V); if the zero data is not classified, the voltage feedback signal is added with the deviation value and is input into the amplifying board, and zero parameter deviation correction is continued.
And fine adjustment is repeatedly performed on parameters of the amplifying plate for many times until feedback signals of the mechanical zero position and the electrical zero position are all classified as standard zero position data (-10V), at the moment, the mechanical zero position and the electrical zero position of the main pump are completely overlapped with the standard zero position data, zero position correction and debugging are successful, the main pump can be recovered to be normally used, and repair is completed by starting the main pump from an industrial personal computer. And then the main pump can be started, and the parameter detection methods are respectively and gradually and finely adjusted at the output opening of 50% and the 100%, so that the accurate control of the Lishile main pump can be completely realized.
The terminology used herein is for the purpose of description and illustration only and is not intended to be limiting. As the present invention may be embodied in several forms without departing from the spirit or essential attributes thereof, it should be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalences of such metes and bounds are therefore intended to be embraced by the appended claims.
Claims (3)
1. A method for debugging and inhibiting zero drift of an amplifying plate of a radial plunger pump is characterized by comprising the following steps:
analyzing the display condition of a display lamp on a panel of an amplifying plate of the main pump, and determining the reason of the alarm fault;
detecting a servo valve of a main pump and a mechanical zero position of the main pump through port communication of an amplifying plate; detecting and recording measurement data of a 1 port, a 2 port and an Ia port of an amplifying plate by using a universal meter direct current voltage gear, wherein the 1 port is used for feeding back the position of a servo valve and is a voltage signal, and the voltage value represents the position of the servo valve of a main pump; the 2 port is used for feeding back the main pump rotation angle degree, and is a voltage signal, and the value of the voltage signal represents the magnitude of the main pump rotation angle degree feedback position; the Ia port is used for feeding back the coil current of the servo valve and is a voltage signal, and the value of the Ia port represents the coil current of the proportional servo valve; when the main pump stops, the servo valve is biased to one side, and if the mechanical zero position exceeds or is less than the position zero position data, the main pump is judged to have the offset of the mechanical zero position; if the main pump rotation angle deviates to one side and the deviation value exceeds or is smaller than an angle zero signal, the deviation of the angle zero position is judged; if the position zero position of the main pump electric system drifts, the zero position parameter of the position zero position drift of the electric system is required to correct; adding the deviation value to the current size of the servo valve coil in the amplifying board, communicating with the amplifying board by utilizing amplifying board communication software REXROTH, and inputting the added data parameters into the amplifying board; measuring the port 1 by using a universal meter, detecting a voltage feedback signal of the position parameter of the main pump, finishing zero parameter correction of the position of the servo valve when the voltage feedback signal is classified as position zero data, adding the voltage feedback signal and a deviation value and inputting the added value into an amplifying board if the voltage feedback signal is not classified as position zero data, and continuing to correct the zero parameter of the position of the servo valve; measuring a 2 port by using a universal meter, detecting a voltage feedback signal of the main pump rotation angle degree, finishing zero parameter correction of the main pump rotation angle degree when the voltage feedback signal is classified as rotation angle zero data, adding the voltage feedback signal and a deviation value and inputting the added value into an amplifying board if the voltage feedback signal is not classified as angle zero data, and continuing to correct the zero parameter of the main pump rotation angle degree; and measuring the Ia port by using a universal meter, detecting a voltage feedback signal of the coil current value of the servo valve, comparing the measured data with standard zero data, calculating a deviation value of the detected data and the standard zero data, carrying out zero correction according to the deviation value, and finishing zero parameter correction of the coil current of the proportional servo valve when the voltage feedback signal is classified as the standard current zero data.
2. The method for debugging and inhibiting zero drift of the amplifying plate of the radial plunger pump according to claim 1, wherein the parameter of the amplifying plate is repeatedly fine-tuned for a plurality of times until the feedback signals of the mechanical zero position and the electrical zero position are all classified as standard zero data, and the mechanical zero position and the electrical zero position of the main pump are completely overlapped with the standard zero data at the moment, so that zero deviation correction is completed.
3. The method for debugging and inhibiting zero drift of the amplifying plate of the radial plunger pump according to claim 1, wherein after zero deviation correction is completed, a main pump is started, and parameter detection and gradual fine adjustment are respectively carried out on 50% and 100% of output opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111294755.3A CN114183334B (en) | 2021-11-03 | 2021-11-03 | Method for debugging and inhibiting zero drift of radial plunger pump amplification plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111294755.3A CN114183334B (en) | 2021-11-03 | 2021-11-03 | Method for debugging and inhibiting zero drift of radial plunger pump amplification plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114183334A CN114183334A (en) | 2022-03-15 |
| CN114183334B true CN114183334B (en) | 2024-03-29 |
Family
ID=80601836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111294755.3A Active CN114183334B (en) | 2021-11-03 | 2021-11-03 | Method for debugging and inhibiting zero drift of radial plunger pump amplification plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114183334B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1559101A (en) * | 2001-12-18 | 2004-12-29 | ��ʽ����۹���������� | Axial abrasion detector of bearing in canned motor |
| JP2005010145A (en) * | 2003-05-26 | 2005-01-13 | Akashi Corp | Servo type oscillation detector and zero point correction method of servo type oscillation detector |
| CN200949579Y (en) * | 2006-08-16 | 2007-09-19 | 中铝西南铝板带有限公司 | Device for eliminating zero drift of proportional valve |
| CN102108992A (en) * | 2009-12-25 | 2011-06-29 | 鞍钢股份有限公司 | Method for determining and maintaining defect of servo valve |
| WO2011081569A1 (en) * | 2009-12-28 | 2011-07-07 | Asylkhan Narimanovich Kushbasov | Method of adjusting position of riding cutoff valve |
| CN102297282A (en) * | 2010-06-25 | 2011-12-28 | 鞍钢股份有限公司 | Online zeroing method for proportional valve |
| KR20170109744A (en) * | 2016-03-21 | 2017-10-10 | 한국남부발전 주식회사 | Test apparatus of servo valve and method thereof |
| CN107559266A (en) * | 2017-10-25 | 2018-01-09 | 北京富力通达科技有限公司 | A kind of servo-control mechanism device and synchronous control method in parallel |
| CN109944838A (en) * | 2019-04-09 | 2019-06-28 | 鞍钢股份有限公司 | A kind of online adjusting zero method of servo valve mechanical zero |
| CN112324749A (en) * | 2020-11-02 | 2021-02-05 | 北京科技大学 | Method for determining and compensating null shift of servo valve |
| CN212540441U (en) * | 2020-04-26 | 2021-02-12 | 珠海多创科技有限公司 | Automatic zero setting circuit of sensor |
| CN113251890A (en) * | 2021-05-17 | 2021-08-13 | 北京航天光华电子技术有限公司 | Zero setting device for position of linear actuator |
-
2021
- 2021-11-03 CN CN202111294755.3A patent/CN114183334B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1559101A (en) * | 2001-12-18 | 2004-12-29 | ��ʽ����۹���������� | Axial abrasion detector of bearing in canned motor |
| JP2005010145A (en) * | 2003-05-26 | 2005-01-13 | Akashi Corp | Servo type oscillation detector and zero point correction method of servo type oscillation detector |
| CN200949579Y (en) * | 2006-08-16 | 2007-09-19 | 中铝西南铝板带有限公司 | Device for eliminating zero drift of proportional valve |
| CN102108992A (en) * | 2009-12-25 | 2011-06-29 | 鞍钢股份有限公司 | Method for determining and maintaining defect of servo valve |
| UA104504C2 (en) * | 2009-12-28 | 2014-02-10 | Зао "Діаконт" | Method of adjusting position of riding cut-off valve |
| WO2011081569A1 (en) * | 2009-12-28 | 2011-07-07 | Asylkhan Narimanovich Kushbasov | Method of adjusting position of riding cutoff valve |
| CN102297282A (en) * | 2010-06-25 | 2011-12-28 | 鞍钢股份有限公司 | Online zeroing method for proportional valve |
| KR20170109744A (en) * | 2016-03-21 | 2017-10-10 | 한국남부발전 주식회사 | Test apparatus of servo valve and method thereof |
| CN107559266A (en) * | 2017-10-25 | 2018-01-09 | 北京富力通达科技有限公司 | A kind of servo-control mechanism device and synchronous control method in parallel |
| CN109944838A (en) * | 2019-04-09 | 2019-06-28 | 鞍钢股份有限公司 | A kind of online adjusting zero method of servo valve mechanical zero |
| CN212540441U (en) * | 2020-04-26 | 2021-02-12 | 珠海多创科技有限公司 | Automatic zero setting circuit of sensor |
| CN112324749A (en) * | 2020-11-02 | 2021-02-05 | 北京科技大学 | Method for determining and compensating null shift of servo valve |
| CN113251890A (en) * | 2021-05-17 | 2021-08-13 | 北京航天光华电子技术有限公司 | Zero setting device for position of linear actuator |
Non-Patent Citations (1)
| Title |
|---|
| 盾构主驱动泵零位偏移原因分析与处理;蔡辉;;建筑机械化;20171115(11);第50-52页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114183334A (en) | 2022-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101972779B (en) | Zero position calibrating and roll gap positioning method for four-roller reversible mill | |
| EP2988002A1 (en) | A method for early error detection in a drive system, a system for early error detection, wind generator comprising the system and use of the system | |
| CN114183334B (en) | Method for debugging and inhibiting zero drift of radial plunger pump amplification plate | |
| CN107662043A (en) | Change for servo rifle without cell pressure and detect | |
| CN103147082B (en) | Cathode protection device for controlling multiplexed output by utilizing polarization potential and operating method thereof | |
| CN102564361A (en) | Ray-type thickness gauge and calibration method thereof | |
| CN102879733A (en) | Gas compensation based full-temperature SF6 gas density relay checking device | |
| CN103557837A (en) | On-line tower inclination monitoring method capable of correcting installation error of sensor | |
| CN107543654A (en) | Obtain method and apparatus, compress control method and the system of the error amount of pressure rule | |
| CN110553152A (en) | Pressure maintaining detection method and system for gas conveying pipe network | |
| CN1851442A (en) | Actuator fault diagnosis method | |
| CN102108992B (en) | Method for determining and maintaining defect of servo valve | |
| CN115270407A (en) | Shear strength parameter calculation method and evaluation method thereof | |
| EP4098889B1 (en) | A failure detection apparatus for a hydraulic system | |
| KR100993267B1 (en) | The precise tuning method of electro-hydraulic converter for power plant and the precise tuning apparatus thereof | |
| CN111834024B (en) | On-line accurate measurement method and system for pressure in containment vessel | |
| CN103513648B (en) | The performance test methods of control system and system | |
| CN110541963A (en) | Double-valve-position detection system and control method for TRT hydraulic bypass valve | |
| KR20120133196A (en) | Control Method of Electro Servo Press | |
| CN207465088U (en) | Hydraulic spanner operation automatic inspection system | |
| CN103364287B (en) | A kind of anti-H 2 S stress corrosion test loading method | |
| CN115158722B (en) | Liquid chemical quantitative automatic filling method and system based on dynamic check control | |
| CN109932890B (en) | Sensor redundancy control system of movable equipment and control method thereof | |
| CN220120524U (en) | Intelligent card control system for casting machining hardness | |
| CN1411927A (en) | Float scraps detector and detecting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |