CN1850560A - Intelligent coutroller for dual air-cushion belt conveyer - Google Patents
Intelligent coutroller for dual air-cushion belt conveyer Download PDFInfo
- Publication number
- CN1850560A CN1850560A CN 200610040194 CN200610040194A CN1850560A CN 1850560 A CN1850560 A CN 1850560A CN 200610040194 CN200610040194 CN 200610040194 CN 200610040194 A CN200610040194 A CN 200610040194A CN 1850560 A CN1850560 A CN 1850560A
- Authority
- CN
- China
- Prior art keywords
- plc
- pressure
- programmable logic
- air
- belt conveyer
- 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.)
- Granted
Links
Images
Landscapes
- Control Of Conveyors (AREA)
Abstract
The invention discloses a new intelligent controller. The pressure transmitter detects the air pressure in the pipe to reflect the loading condition of the air cushion conveyer and transfer the signal to the PLC to become the analog input feedback signal which is changed by the A/D and compared to the giving pressure of the PLC, then is changed to the analog output signal by the D/A to control the converter and adjust the AC power frequency to adjust the speed of the fan. The starting process can do curvilinear motion as the presetting different speed by pressure detecting and conversion controlling. The controller can reach not only the smooth starting but the smooth adjustment of the motor and the belt regulation.
Description
Technical field
The invention provides a kind of later-model intelligent controlling device.This controller can not only be realized the smooth starting of motor, and can realize the stepless speed control of motor, realizes the automatic deviation correction of load-transfer device, and working stability is reliable.Can be used for dual air-cushion belt conveyer and use, also can be applicable to other association areas.
Background technology
The idler stand that air cushion-belt conveyer becomes belt conveyer is the air film supporting, have operate steadily reliable, running resistance is little, energy consumption is low, loaded area increases, advantages of simple structure and simple, thereby be widely used.Mainly there is the problem of three aspects in the control that is used for dual air-cushion belt conveyer at present.First: because air cushion conveyer carries load-transfer device with air film in the cushion slot, air-film thickness affects the carrying elasticity of conveyer, air-film thickness need remain within the reasonable range, thickness causes the load-transfer device shakiness too greatly easily, too for a short time, make load-transfer device and Pan Caobianjiao friction easily and influence the life-span of load-transfer device and increase energy consumption, and under the different traffic loads, its air-film thickness is also different.The thickness of air film is subjected to the control of rotation speed of fan and air quantity, but the blower fan of air-cushion type belt conveyer is controlled by switch directly at present, during operation, the speed of blower fan can not be regulated, the wind speed of transmission during different loads is all the same, like this, both made load-transfer device underloading or when unloaded air film too thick and during in heavy duty air film too little, thereby make the work mal, also wasted a large amount of energy simultaneously.Second: driving the belt of air film conveyer and the motor of blower fan at present also all is to be subjected to switch directly actuated, can not adjust during starting, though taked certain method during the electric motor starting that has, has obtained certain effect, also has some problems.Press current required standard, the acceleration from rest of belt conveyer should be 0.1～0.3m/s
2But actual engineering shows, the belt conveyer of the incompatible long distance of this numerical value, complex circuit, and such acceleration/accel impacts bigger to complete machine, and will shorten the service life of load-transfer device, improved the strength grade requirement of load-transfer device, reduced economic benefit.The the 3rd: because the belt deflection problem that variation, load variations and the unequal various factors of transport tape inner tensions of material impact direction cause on the transport tape, usually become puzzlement people's a difficult problem, behind the transport tape sideslip, might make unrestrained, the transport tape edging of material, when serious, may cause major accident.The method of the pure machinery of main at present employing is corrected the transport tape sideslip, but effect is not very good.
Intelligent control technology is used very ripe in a lot of fields, but does not appear in the newspapers on air cushion conveyer, does not appear in the newspapers in the integrated application aspect the automatic deviation correction of the variable frequency soft start of the intelligent speed-regulating of air cushion conveyer blower fan, motor and transport tape especially.
Summary of the invention
The present invention seeks to overcome the shortcoming of dual air-cushion belt conveyer prior art, a kind of new type of intelligent controller is provided.
The technical scheme that realizes above-mentioned purpose is:
Intelligent controller comprises Programmable Logic Controller (PLC), frequency converter, pressure sensor, correction limit switch, motorized valve.Wherein Programmable Logic Controller is through the pressure sensor acquired signal on dual air-cushion belt conveyer; Programmable Logic Controller links to each other with frequency converter, through Frequency Converter Control motor B and motor A and blower fan, realizes the variable frequency soft start of motor and the intelligent speed-regulating of blower fan; Programmable Logic Controller with the control motorized valve, by the correction hole on the dish groove of motorized valve control conveyer, is realized the automatic deviation correction of transport tape according to correction limit switch transmission signals.Intelligent controller software adopts the modularized program design, is called by the main program unification, comprises that mainly initialization subroutine, A/D conversion routine, D/A conversion routine, air quantity detection and control subprogram, algorithm compare subprogram etc.
Its control method is:
Under different loads, utilize pressure sensor to detect the pressure of ducted gas, reflect the condition of loading of air cushion conveyer, pressure signal is transferred among the Programmable Logic Controller PLC, become the analog input feedback signal, setting pressure relatively becomes analog quantity output signals through the D/A conversion again after the A/D conversion and among the PLC, the control frequency converter, regulate ac power frequency, control motor A, thus rotation speed of fan regulated smoothly, reached good energy-saving effect.So just constituted with air cushion transmission system pressure is the close-loop feedback control system of control criterion.
During electrical motor B starting, unequally loaded starting speed curve is set in PLC in advance, during starting, at first come the reflected load state by detecting pressure, by different starting speed curves, change ac power frequency then, adjust acceleration from rest, and export constant torque, realize power balance.During the starting beginning, acceleration/accel is 0, and speed steadily increases; During to T/2, acceleration/accel reaches maxim, and speed reaches v/2; Then, acceleration/accel reduces gradually symmetrically, and speed continues to increase; When reaching the design belt speed, acceleration/accel drops to 0, finishes starting process.Except that starting point and terminal point, the first derivative of accelerating curve is continuous.
The realization of automatically correcting error of conveyer belt is that the correction limit switch is set on conveyer, and the correction hole of opening different sizes and shape on the dish groove of conveyer, under the normal circumstances, and the correction bore closure.The correction limit switch is used for detecting the drift condition of load-transfer device, when skew reaches certain scope, sends signal and gives PLC, PLC starts motorized valve after receiving signal, open the correction hole, the air-flow of correction hole output certain orientation and pressure makes load-transfer device return to the home position.
Programmable Logic Controller PLC of the present invention leaves the interface with host computer, can constitute dcs with host computer easily.
The invention has the advantages that the Comprehensive Control of the aspects such as automatic deviation correction of the variable frequency soft start of the intelligent speed-regulating of having realized the air cushion conveyer blower fan, motor and transport tape.And the running condition that can show conveyer in real time can realize the data handing of processing, relevant devices running state etc. of reporting to the police.
Description of drawings
Fig. 1 is the intelligent controller principle scheme drawing.
Fig. 2 is the intelligent controller main program flow chart
Specific implementation
Further intelligent controller is described below in conjunction with principle schematic and main program flow chart.
Intelligent controller comprises Programmable Logic Controller PLC, frequency converter, pressure sensor, correction limit switch, motorized valve etc.Programmable Logic Controller adopts the S7-300 series of Siemens Company, and frequency converter adopts the ACS600 series of ABB AB, and pressure sensor adopts SYB-10000,0～100Kpa/4～20mA.
Under different loads, by detecting the pressure of ducted gas, the condition of loading that reflects air cushion conveyer, pressure signal is become the analog input feedback signal, and setting pressure relatively becomes analog quantity output signals through the D/A conversion again after the A/D conversion and among the PLC, the control frequency converter, regulate ac power frequency, thereby regulate rotation speed of fan smoothly, reached good energy-saving effect.So just constituted with air cushion transmission system pressure is the close-loop feedback control system of control criterion.
System software adopts the modularized program design, is called by the main program unification, comprises that mainly initialization subroutine, A/D conversion routine, D/A conversion routine, air quantity detection and control subprogram, algorithm compare subprogram etc.
The present invention leaves the interface with host computer, utilize the communication protocol of PLC and host computer, can conveniently constitute dcs, can be on upper computer the running condition of conveyer intuitively, show in real time, can cooperate the Wincc monitoring, carry out data handing, mainly containing the data handing of report to the police processing, relevant devices running state etc.Can also set up the system synthesis data bank in addition, with the surf the Net real time information etc. of issue conveyer of B/S mode.
Under different loads, make starting process provide the ideal controllable starting ability by predefined different starting speed curve motion.Its starting coefficient can be controlled at 1.05～1.1, and acceleration from rest can be controlled at 0～0.05m/s
2, be applicable to the belt conveyer of growing distance, complex circuit, to satisfy the requirement of complete machine dynamic stability and reliability.
In transmission course, transport tape can automatically restore to virgin state if the above skew of 20mm takes place, and automatic recovery time was recovered deviation less than 2mm less than 3 seconds.The index of automatic deviation correction is far above the mechanical type method for correcting error.
Claims (4)
1. the intelligent controller of a dual air-cushion belt conveyer is characterized in that comprising Programmable Logic Controller, frequency converter, pressure sensor, correction limit switch, motorized valve; The pressure sensor that wherein is positioned on the dual air-cushion belt conveyer links to each other with Programmable Logic Controller; Programmable Logic Controller links to each other with frequency converter, links to each other with blower fan with motor successively through frequency converter; Programmable Logic Controller respectively be arranged on conveyer on correction limit switch, motorized valve link to each other, motorized valve links to each other with correction hole on the conveyer; Intelligent controller software adopts the modularized program design, is called by the main program unification, comprises relatively subprogram of initialization subroutine, A/D conversion routine, D/A conversion routine, air quantity detection and control subprogram, algorithm.
2. the intelligent controller of a kind of dual air-cushion belt conveyer according to claim 1 is characterized in that offering the correction hole of different sizes and shape on the dish groove of conveyer.
3. the intelligent controller of a kind of dual air-cushion belt conveyer according to claim 1 is characterized in that Programmable Logic Controller PLC leaves the interface with host computer.
4. the intelligent controller of a kind of dual air-cushion belt conveyer according to claim 1, it is characterized in that control method is: adopts pressure sensor detects the pressure of ducted gas, pressure signal is transferred among the Programmable Logic Controller PLC, become the analog input feedback signal, setting pressure relatively becomes analog quantity output signals through the D/A conversion again after the A/D conversion and among the PLC, the control frequency converter, regulate ac power frequency, regulate rotation speed of fan; Simultaneously during electric motor starting, by different starting speed curves, change ac power frequency, adjust acceleration from rest, export constant torque according to the signal of pressure sensor transmission;
And adopt the correction limit switch to detect the drift condition of load-transfer device, when skew reaches certain scope, send signal and give PLC, PLC starts motorized valve after receiving signal, open the correction hole, the air-flow of correction hole output certain orientation and pressure makes load-transfer device return to the home position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100401943A CN100567101C (en) | 2006-05-11 | 2006-05-11 | A kind of intelligent controller of dual air-cushion belt conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100401943A CN100567101C (en) | 2006-05-11 | 2006-05-11 | A kind of intelligent controller of dual air-cushion belt conveyer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1850560A true CN1850560A (en) | 2006-10-25 |
| CN100567101C CN100567101C (en) | 2009-12-09 |
Family
ID=37132062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100401943A Active CN100567101C (en) | 2006-05-11 | 2006-05-11 | A kind of intelligent controller of dual air-cushion belt conveyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100567101C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870434A (en) * | 2010-06-18 | 2010-10-27 | 天津港焦炭码头有限公司 | Twin-stage braking control technique of rotating mechanism of gantry crane |
| CN102494716A (en) * | 2011-11-22 | 2012-06-13 | 北京交通大学 | Comprehensive parameter testing system of suspension type material transmitting device |
| CN105626500A (en) * | 2014-10-27 | 2016-06-01 | 中联重科股份有限公司 | Material conveying control apparatus, system, method and engineering machine |
| CN105752595A (en) * | 2016-03-24 | 2016-07-13 | 柳州市中晶科技有限公司 | Air cushion-suspending conveyor leveling method |
| CN105775595A (en) * | 2016-03-24 | 2016-07-20 | 柳州市中晶科技有限公司 | Air cushion suspension conveyor |
| CN106241271A (en) * | 2016-08-23 | 2016-12-21 | 乌海市天惠矿山机械有限责任公司 | A kind of air cushion-belt conveyer automatic intelligent electric-control system |
| CN106743327A (en) * | 2017-04-11 | 2017-05-31 | 兖州煤业股份有限公司 | A kind of controller of mine belt conveyor |
| CN110834919A (en) * | 2019-11-18 | 2020-02-25 | 九江市粮油机械厂(有限公司) | Energy-saving and consumption-reducing air cushion machine conveying device and system |
-
2006
- 2006-05-11 CN CNB2006100401943A patent/CN100567101C/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870434A (en) * | 2010-06-18 | 2010-10-27 | 天津港焦炭码头有限公司 | Twin-stage braking control technique of rotating mechanism of gantry crane |
| CN102494716A (en) * | 2011-11-22 | 2012-06-13 | 北京交通大学 | Comprehensive parameter testing system of suspension type material transmitting device |
| CN102494716B (en) * | 2011-11-22 | 2014-09-03 | 北京交通大学 | Comprehensive parameter testing system of suspension type material transmitting device |
| CN105626500A (en) * | 2014-10-27 | 2016-06-01 | 中联重科股份有限公司 | Material conveying control apparatus, system, method and engineering machine |
| CN105626500B (en) * | 2014-10-27 | 2017-05-31 | 中联重科股份有限公司 | A kind of material conveying control device, system, method and engineering machinery |
| CN105752595A (en) * | 2016-03-24 | 2016-07-13 | 柳州市中晶科技有限公司 | Air cushion-suspending conveyor leveling method |
| CN105775595A (en) * | 2016-03-24 | 2016-07-20 | 柳州市中晶科技有限公司 | Air cushion suspension conveyor |
| CN106241271A (en) * | 2016-08-23 | 2016-12-21 | 乌海市天惠矿山机械有限责任公司 | A kind of air cushion-belt conveyer automatic intelligent electric-control system |
| CN106743327A (en) * | 2017-04-11 | 2017-05-31 | 兖州煤业股份有限公司 | A kind of controller of mine belt conveyor |
| CN110834919A (en) * | 2019-11-18 | 2020-02-25 | 九江市粮油机械厂(有限公司) | Energy-saving and consumption-reducing air cushion machine conveying device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100567101C (en) | 2009-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100567101C (en) | A kind of intelligent controller of dual air-cushion belt conveyer | |
| CN100590307C (en) | Power controller and method for hydraulic power system | |
| CN103670750B (en) | Power limit matching control system, method, device and engineering machinery | |
| CN100552587C (en) | Position control | |
| CN114045897B (en) | Load abrupt change speed-drop control method and system for positive flow system and excavator | |
| CN102142800A (en) | Stage synchronous lift control system and method | |
| CN203705030U (en) | Powder material automatic weighing system based on PLC and variable frequency motor | |
| CN103277871A (en) | Speed control device of outdoor draught fan of air conditioner | |
| CN102022312A (en) | Pump system and control method thereof | |
| CN1526970A (en) | Method and apparatus for clutch torque adaptation | |
| CN103946759A (en) | Coolant system for machine tools | |
| CN101604952A (en) | Slip motor automatic control device | |
| EP1477671A3 (en) | Control apparatus for variable displacement compressor | |
| CN201467068U (en) | Intelligent control device of AC linear induction motor | |
| CN100445654C (en) | Air-conditioning cold flow self-adaptive energy-saving control system | |
| CN205136018U (en) | Air compressor economizer system based on PID frequency conversion | |
| CN102235361A (en) | Method and device for constant pressure control of screw air compressor | |
| CN2766063Y (en) | Rotary speed controller for air compressor | |
| CN205207074U (en) | Special PMSM actuating system of air compressor machine | |
| EP2008961B1 (en) | Control unit, method and computer program product for controlling a lift mechanism | |
| CN101418800B (en) | Control system for intelligent frequency conversion screw air compressor | |
| CN201014676Y (en) | Air conditioner cooling volume self-adaptive energy-saving controller | |
| CN111943095B (en) | Method for controlling stability of boom of aerial work platform | |
| CN201136605Y (en) | Permanent magnet AC servo drive system for pre-loosing roller of guy barrel of cigarette packaging machine | |
| CN111856976A (en) | Control system and method for hydraulic motor of electric loader |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIYANG CHANGDA TECHNOLOGY TRANSFER CENTER CO., LTD Free format text: FORMER OWNER: JIANGSU POLYTECHNIC UNIVERSITY Effective date: 20141204 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 213016 CHANGZHOU, JIANGSU PROVINCE TO: 213311 CHANGZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141204 Address after: Daitou town of Liyang City Ferry Street 213311 Jiangsu city of Changzhou province 8-2 No. 7 Patentee after: Liyang Chang Technology Transfer Center Co., Ltd. Address before: 213016 Department of science and technology, Jiangsu Polytechnic University, Baiyun Road, Jiangsu, Changzhou Patentee before: Jiangsu Polytechnic University |