CN202989654U - Frequency conversion control device of screw press master - Google Patents
Frequency conversion control device of screw press master Download PDFInfo
- Publication number
- CN202989654U CN202989654U CN 201220653142 CN201220653142U CN202989654U CN 202989654 U CN202989654 U CN 202989654U CN 201220653142 CN201220653142 CN 201220653142 CN 201220653142 U CN201220653142 U CN 201220653142U CN 202989654 U CN202989654 U CN 202989654U
- Authority
- CN
- China
- Prior art keywords
- motor
- control device
- screw press
- press master
- frequency converter
- 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
Images
Landscapes
- Control Of Multiple Motors (AREA)
Abstract
A frequency conversion control device of a screw press master is formed by the screw press master, a motor, a current transducer, a frequency converter and a controller. The frequency conversion control device of the screw press master is characterized in that the front end of the motor is connected with the screw press master, the rear end of the motor is connected with the current transducer, the rear end of the current transducer is connected with the frequency converter, the rear end of the frequency converter is connected with the controller, and the front end of the controller is connected with the motor. The frequency conversion control device of the screw press master has the advantages of being capable of adjusting rotating speed of the motor, enabling load current of the screw press master to keep in a balanced state, ensuring continuous running of production, ensuring normal operational production, and being free from stoppage due to changes of load.
Description
Technical field
The utility model relates to the frequency conversion control technique field, says more specifically a kind of acroll press washer frequency-converting control device.
Background technology
at present, what the acroll press washer of China's paper industry generally adopted is the threephase asynchronous machine transmission, control system through the reduction box drive, because motor operates in the power frequency state, and the size of inlet amount is unfixed, like this, when inlet amount is little, can cause the waste of the energy, and inlet amount is large the time, can cause the obstruction of acroll press washer again, cause the equipment gross distortion, impact is normal produces, increased production cost, the problem that needs at present to solve is how can be in the moment that the grout absorption fluctuation changes, allow the acroll press washer can be according to the variation of load, suitably increase or reduce rotating speed, so that the slurry of press master inside can in time be discharged, thereby the load current that makes acroll press washer maintains the state of a balance, make the production can be continuous, not because the variation of load produces fault, impact is normal produces.
Summary of the invention
For addressing the above problem, the utility model has designed a kind of adjustable engine speed, make the acroll press washer frequency-converting control device of acroll press washer stable operation, its principle is: adopt variable-frequency governor to drive threephase asynchronous, when inlet amount changes, the load of equipment changes thereupon, the electric current of motor changes thereupon, variable-frequency governor is according to the increase of current of electric or reduce to make the rotating speed of acroll press washer raise or reduce, make load substantially maintain a poised state, change thereby solve motor load the fault in production that causes.
Concrete scheme of the present utility model is: described acroll press washer frequency-converting control device is comprised of acroll press washer, motor, current transducer, frequency converter, controller, the front end that it is characterized in that motor is connected with acroll press washer, the rear end of motor is connected with current transducer, the rear end of current transducer is connected with frequency converter, the rear end of frequency converter is connected with controller, and the front end of controller is connected with motor.
Current transducer described in the utility model is characterized in that it is 4～20mA direct current signal that current transducer is exported to electric current of frequency converter.
Frequency converter described in the utility model is characterized in that frequency converter can revise the dc current signal that current transducer transports.
The beneficial effects of the utility model are acroll press washer frequency-converting control device adjustable engine speeds, make the load current of acroll press washer maintain the state of a balance, keep producing and carry out continuously, because the variation of load produces fault, do not ensured normal work production.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation; In accompanying drawing:
1. acroll press washer, 2. motor, 3. current transducer, 4. frequency converter, 5. controller.
The specific embodiment
by reference to the accompanying drawings the utility model is described in further detail, so that the public grasps implementation method of the present utility model better, the concrete scheme that the utility model is implemented is: described acroll press washer frequency-converting control device is by acroll press washer 1, motor 2, current transducer 3, frequency converter 4, controller 5 forms, the front end that it is characterized in that motor 2 is connected with acroll press washer 1, the rear end of motor 2 is connected with current transducer 3, the rear end of current transducer 3 is connected with frequency converter 4, the rear end of frequency converter 4 is connected with controller 5, the front end of controller 5 is connected with motor 2.
Frequency converter 4 described in the utility model is characterized in that frequency converter 4 can revise the dc current signal that current transducer 3 transports.
The beneficial effects of the utility model are acroll press washer frequency-converting control device adjustable motivation 2 rotating speeds, make the load current of acroll press washer 1 maintain the state of a balance, keep producing and carry out continuously, because the variation of load produces fault, do not ensured normal work production.
Claims (3)
1. acroll press washer frequency-converting control device, formed by acroll press washer (1), motor (2), current transducer (3), frequency converter (4), controller (5), the front end that it is characterized in that motor (2) is connected with acroll press washer (1), the rear end of motor (2) is connected with current transducer (3), the rear end of current transducer (3) is connected with frequency converter (4), the rear end of frequency converter (4) is connected with controller (5), and the front end of controller (5) is connected with motor (2).
2. acroll press washer frequency-converting control device according to claim 1, is characterized in that it is 4～20mA direct current signal that current transducer (3) is exported to (4) electric currents of frequency converter.
3. acroll press washer frequency-converting control device according to claim 1 is characterized in that frequency converter (4) can revise the dc current signal that current transducer (3) transport.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220653142 CN202989654U (en) | 2012-12-03 | 2012-12-03 | Frequency conversion control device of screw press master |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220653142 CN202989654U (en) | 2012-12-03 | 2012-12-03 | Frequency conversion control device of screw press master |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202989654U true CN202989654U (en) | 2013-06-12 |
Family
ID=48560849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220653142 Expired - Fee Related CN202989654U (en) | 2012-12-03 | 2012-12-03 | Frequency conversion control device of screw press master |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202989654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103744364A (en) * | 2013-12-13 | 2014-04-23 | 云南中烟昆船瑞升科技有限公司 | Automatic control system and control method for double-spiral pulp extruder |
-
2012
- 2012-12-03 CN CN 201220653142 patent/CN202989654U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103744364A (en) * | 2013-12-13 | 2014-04-23 | 云南中烟昆船瑞升科技有限公司 | Automatic control system and control method for double-spiral pulp extruder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102340270B (en) | Programmable logic controller (PLC)-and-frequency-converter-based energy saving control system and method for doubly-fed motor | |
| CN201648671U (en) | Main driving mechanism of air-jet loom | |
| CN203697235U (en) | Gypsum board turning control system | |
| CN202989654U (en) | Frequency conversion control device of screw press master | |
| CN203617941U (en) | Asynchronous motor with two motors in series connection driven by inverter | |
| CN202889286U (en) | Modularized high-voltage rotor frequency converter | |
| CN203711099U (en) | Ceramic ball mill drive system | |
| CN203682921U (en) | Overhead traveling crane control system | |
| CN203027170U (en) | Low voltage frequency converter with rotating speed tracing start function | |
| CN203896234U (en) | Multi-motor synchronization controlling apparatus based on embedded system | |
| CN103023392A (en) | Low-voltage frequency converter with rotate speed tracking start | |
| CN201994895U (en) | Multi-motor driving device | |
| CN102926339B (en) | A kind of variable frequency torque floodgate | |
| CN202111658U (en) | Rotating speed control type frequency converter | |
| CN203233357U (en) | Low-voltage frequency converter with braking function | |
| CN101844725B (en) | Line voltage drop automatic detection control method for hoisting machinery | |
| CN202679308U (en) | Winnower energy saving apparatus | |
| CN202094842U (en) | Micromotor energy-saving device | |
| CN202076977U (en) | FFC (flexible flat cable) stamping machine traction tension constant speed controlling device | |
| CN202997982U (en) | A frequency conversion control device of a belt conveyor in a mine | |
| CN203368397U (en) | Efficiency optimization control apparatus used for frequency converter of motor of air blower | |
| CN202153719U (en) | Double-fed motor energy saving control system based on PLC and frequency converter | |
| CN203513039U (en) | Elevator energy feedback device | |
| CN201495339U (en) | Power control device for rotor spinning machine | |
| CN207546619U (en) | High pressure roller mill permanent magnet direct-drive system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |