CN202839133U - System for automatically controlling tension of stranded cables of superconducting conductors - Google Patents
System for automatically controlling tension of stranded cables of superconducting conductors Download PDFInfo
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- CN202839133U CN202839133U CN 201220229842 CN201220229842U CN202839133U CN 202839133 U CN202839133 U CN 202839133U CN 201220229842 CN201220229842 CN 201220229842 CN 201220229842 U CN201220229842 U CN 201220229842U CN 202839133 U CN202839133 U CN 202839133U
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- unwrapping wire
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Abstract
The utility model discloses a system for automatically controlling the tension of stranded cables of superconducting cable conductors. The system comprises a stranded wire frame, wherein a pay-off disk is arranged in the stranded wire frame through a rotating shaft; wire guiding wheels are arranged behind the stranded wire frame; a take-up disk is arranged behind the wire guiding wheels; and the take-up disk is connected with a take-up motor. The system also comprises a pay-off motor connected with the pay-off disk; a tension sensor is connected with the wire guiding wheels; signals of the tension sensor are switched into a control circuit in a control cabinet; and a frequency converter of the take-up motor and a frequency converter of the pay-off motor are respectively connected with the control circuit. By adoption of the system, the tension can be accurately controlled, so that wires can be paid off stably, the problem that a tension value cannot be accurately controlled during stranding of superconductive wires is solved, and the problems that the superconductive wires are loosen and nonuniform, are easily snapped and the like during stranding are solved.
Description
Technical field
The utility model relates to a kind of strand tension control system processed of cage stranding machine draw drum, relates in particular to a kind of superconducting conductor strand tension automatic control system processed.
Background technology
Development along with science and technology, the superconducting magnet technology has obtained increasing application, the core of superconducting magnet is CICC(Cable-In-Conduit-Conductors) superconducting conductor, it has, and good self-supporting, lower A.C.power loss, required low-temperature cooling media are few, safe and reliable to operation, the performance high, are the first-selected conductors of the devices such as large scale superconducting magnet in the controlled thermonuclear fusion device of generally acknowledging in the world at present.
The CICC superconducting conductor is a kind of multiple valve dress cable, be divided into that Pyatyi is stranded to be formed, the sub-cable of the first order of conductor is made of according to certain twisting pitch is stranded some copper cash and some superconducting wires, then with some root cables unit again according to the sub-cable of the stranded formation secondary of certain twisting pitch, in like manner reconstruct three grades, the sub-cable of level Four, finally be stranding into Pyatyi utmost point cable.The CICC superconducting conductor is comprised of many superfine superconducting filaments, and the Superconducting Strand after stranded reaches 1154, and every Superconducting Strand diameter only is 0.73 ± 0.003mm.
Require the laying tension size to want suitable and consistent in the CICC superconducting conductor strand process processed, because Superconducting Strand is superfine, if laying tension is too large in the strand process processed, Superconducting Strand is very easily broken; If laying tension is too little, the stranded cable rapid wear of strand system is loose, not tight.If laying tension is inconsistent, stranded cable can produce the phenomenons such as snakelike, crooked.For preventing above-mentioned bad phenomenon, in the stranded cable process, must carry out strict control to the laying tension value of stranded cables at different levels.
The stranded cable of common cable is not strict to the requirement of laying tension, and the payoff tensioner of stranded equipment is very simple, and the size of tension force is by regulating manually.Traditional unwrapping wire process generally adopts the unwrapping wire mode of passive type, and actinobacillus wheel is not applied laying tension, drives actinobacillus wheel by the rotation of take-up pulley, thereby realizes the unwrapping wire process of actinobacillus wheel.Traditional take-up process then is to adopt passive type tension force take-up mode, and take-up pulley relies on the size of regulator potentiometer to control frequency converter, thereby frequency converter is realized the take-up of take-up pulley by the rotating speed of control motor.Like this, the size of tension value can not detect and automatically control.The stranded equipment of use common cable carries out the stranded cable of CICC superconducting conductor, does not satisfy stranded requirement.
The utility model content
The purpose of the utility model technology is to provide a kind of superconducting cable conductor stranded cable tension automatic control system that can automatically control stranded cable tension force.
For achieving the above object, the technical scheme taked of the utility model is:
A kind of superconducting cable conductor stranded cable tension automatic control system, comprise the twisted wire framework, by rotating shaft draw drum is installed in the described twisted wire framework, the rear of described twisted wire framework is equipped with guide roller, the rear of described guide roller is equipped with take-up reel, described take-up reel is connected with the take-up motor, also comprises the unwrapping wire motor that is connected with draw drum, and tension pick-up is connected with described guide roller; In the control circuit in the signal access control cabinet of described tension pick-up, the take-up motor frequency conversion device of described take-up motor and the unwrapping wire motor frequency conversion device of unwrapping wire motor are connected with described control circuit respectively.
Described control circuit comprises the PLC Programmable Logic Controller, and described PLC Programmable Logic Controller receives the digital signal of A/D module, and described A/D module receives the analog signal of described tension pick-up; Described PLC Programmable Logic Controller carries out data with the digital signal transfers that receives to host computer to be processed, and the signal output after described host computer will be processed feeds back to described PLC Programmable Logic Controller; Described PLC Programmable Logic Controller passes to respectively unwrapping wire motor D/A module and take-up motor D/A module with the digital signal of feedback after inner PID processes; Described unwrapping wire motor D/A module is converted to analog signal with the digital signal that receives and passes to described unwrapping wire motor frequency conversion device, and described unwrapping wire motor frequency conversion device is controlled the payingoff speed of described unwrapping wire motor according to the size of analog signal; Described take-up motor D/A module is converted to analog signal with the digital signal that receives and passes to described take-up motor frequency conversion device, and described take-up motor frequency conversion device is controlled the take-up speed of described take-up motor according to the size of analog signal.
The central shaft of described draw drum parallels with the central shaft of described unwrapping wire motor, is installed on the same body frame by belt.
The guide roller of described tension pick-up is between two described guide rollers.
The analog signal of the described tension pick-up that described A/D module receives is 4～20mA current signal, and current signal is converted to digital signal.
Described PLC Programmable Logic Controller is Siemens PLC C-S7-300 Programmable Logic Controller.
Described host computer is upper industrial computer.
The superconducting cable conductor stranded cable tension automatic control system that adopts the utility model to provide, because tension pick-up can detect the variation of tension data, and then tension force accurately controlled, the unwrapping wire motor is effectively controlled payingoff speed, make unwrapping wire steady, effectively solved the accurate control problem that can not satisfy during superconducting wire is stranded tension value, realized the stranded tension value of superconducting wire according to the size of set point to every, the real detection and automatically control when strand superconducting line carries out, solved that superconducting wire is easily broken in stranded, the difficult problem such as loose, inhomogeneous.The PF5 superconductive cable of strand system has passed through the detection of iter international body, and the properties of stranded cable satisfies the requirement of technical specification fully.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is control circuit schematic diagram of the present utility model.
Among the figure, 1-twisted wire framework, 2-draw drum, the 3-guide roller, 4-take-up reel, 5-take-up motor, 6-unwrapping wire motor, 7-tension pick-up, 8-A/D module, the 9-PLC Programmable Logic Controller, the 10-host computer, 11-unwrapping wire motor D/A module, 12-unwrapping wire motor frequency conversion device, 13-take-up motor D/A module, 14-take-up motor frequency conversion device.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing thereof, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
As shown in Figure 1, a kind of superconducting cable conductor stranded cable tension automatic control system that the utility model provides, comprise twisted wire framework 1, by rotating shaft draw drum 2 is installed in the twisted wire framework 1, the rear of twisted wire framework 1 is equipped with guide roller 3, and the rear of guide roller 3 is equipped with take-up reel 4, take-up reel 4 is connected with take-up motor 5, also comprise the unwrapping wire motor 6 that is connected with draw drum 2, the central shaft of draw drum 2 parallels with the central shaft of unwrapping wire motor 6, and they are installed on the same body frame by belt; Tension pick-up 7 is connected with guide roller 3, and the guide roller of tension pick-up 7 receives the tension variation of tension pick-up 7 between two guide rollers 3.In the control circuit in the signal access control cabinet of tension pick-up 7, take-up motor frequency conversion device 14 and unwrapping wire motor frequency conversion device 12 are installed in respectively in the control circuit of control cubicle, and take-up motor 5 is connected with unwrapping wire motor frequency conversion device 12 with take-up motor frequency conversion device 14 by cable respectively with unwrapping wire motor 6.
As shown in Figure 2, control circuit comprises Siemens PLC C-S7-300 Programmable Logic Controller 9, PLC Programmable Logic Controller 9 receives the digital signal of A/D module 8, A/D module 8 receives the analog current signal of 4～20mA of tension pick-up 7, and A/D module 8 is that digital signal is exported to PLC Programmable Logic Controller 9 with this analog signal conversion.The digital signal transfers that PLC Programmable Logic Controller 9 will receive from A/D module 8 is to host computer 10, and host computer 10 is upper industrial computers, carries out behind the numeral letter that host computer 10 will receive output signal being fed back to PLC Programmable Logic Controller 9 after data process.PLC Programmable Logic Controller 9 will pass to respectively unwrapping wire motor D/A module 11 and take-up motor D/A module 13 from the digital signal of host computer 10 feedbacks after inner PID processes.Unwrapping wire motor D/A module 11 is converted to analog signal with the digital signal that receives and passes to unwrapping wire motor frequency conversion device 12, and unwrapping wire motor frequency conversion device 12 is controlled the payingoff speed of unwrapping wire motor 6 according to the size of analog signal.Take-up motor D/A module 13 is converted to analog signal with the digital signal that receives and passes to take-up motor frequency conversion device 14, and take-up motor frequency conversion device 14 is according to the take-up speed of the size control take-up motor 5 of analog signal.
As shown in Figure 1, stranding machine comprises three body frames, twisted wire framework 1, draw drum 2 and unwrapping wire motor 6 are contained on the same body frame, and two guide rollers 3 and tension pick-up 7 are installed on the same body frame, and take-up reel 4 and take-up motor 5 are installed on the same body frame.The central shaft of the central shaft of draw drum 2 and unwrapping wire motor 6 is parallel to each other, and is installed on the same body frame by belt, and two central shafts are in transmission connection by belt, realizes the initiatively purpose of unwrapping wire.The guide roller of tension pick-up 7 receives the tension variation of tension pick-up 7 between two guide rollers 3.
Adopt Siemens PLC C-S7-300 Programmable Logic Controller and host computer as stranded cable, permanent tension force, logical data acquisition process control core, control unwrapping wire and take-up in the stranded cable production process, realize the permanent tension force control of several superconducting lines and strand in the stranded process by the control to unwrapping wire motor and take-up motor.
The input and output of PLC Programmable Logic Controller 9 and host computer 10 all are digital quantities, adopt expansion 2 * 8 road input modules output mould to carry out the A/D conversion, adopt 2 * 8 tunnel output simulation expansion output modules to carry out the D/A conversion.
Unwrapping wire motor frequency conversion device 12 and take-up motor frequency conversion device 14 carry out frequency converter with the regulated quantity of PLC Programmable Logic Controller 9 inputs respectively to be processed, the AC signal that is converted into 0～50HZ is exported to unwrapping wire motor 6 and take-up motor 5, realizes the automatic control of laying tension value size by the rotating speed of control unwrapping wire motor 6 and take-up motor 5.
The unwrapping wire process: the unwrapping wire process adopts active permanent tension stringing, the given tension signal of twisted wire is set output by host computer 10, given signal is sent into PLC Programmable Logic Controller 9, PLC Programmable Logic Controller 9 compares the linear velocity value of given tension value and measurement, obtain side-play amount, adopt pid control law to calculate required regulated quantity, be converted to 0～5 volt analog signal through unwrapping wire motor D/A module 11, control unwrapping wire motor frequency conversion device 12 and unwrapping wire motor 6 make it to reach best constant tension lines speed.
The take-up process: the take-up process adopts active permanent tension force take-up, the given tension signal of twisted wire is set output by host computer 10, given signal is sent into PLC Programmable Logic Controller 9, PLC Programmable Logic Controller 9 compares the linear velocity value of given tension value and measurement, obtain side-play amount, adopt pid control algorithm to calculate required regulated quantity, be converted to 0～5 volt analog signal through take-up motor D/A module 13, control take-up motor frequency conversion device 14 and take-up motor 5 make it to reach best constant tension lines speed.
Above-described only is preferred embodiment of the present utility model, does not limit to the utility model.Should be understood that for the person of ordinary skill of the art, under technology enlightenment provided by the utility model, can also make other equivalent modifications and improvement, all can realize the purpose of this utility model, all should be considered as protection range of the present utility model.
Claims (7)
1. superconducting cable conductor stranded cable tension automatic control system, comprise twisted wire framework (1), by rotating shaft draw drum (2) is installed in the described twisted wire framework (1), the rear of described twisted wire framework (1) is equipped with guide roller (3), the rear of described guide roller (3) is equipped with take-up reel (4), described take-up reel (4) is connected with take-up motor (5), it is characterized in that, also comprise the unwrapping wire motor (6) that is connected with draw drum (2), tension pick-up (7) is connected with described guide roller (3); In the control circuit in the signal access control cabinet of described tension pick-up (7), the take-up motor frequency conversion device (14) of described take-up motor (5) is connected with described control circuit respectively with the unwrapping wire motor frequency conversion device (12) of unwrapping wire motor (6).
2. a kind of superconducting cable conductor stranded cable tension automatic control system according to claim 1, it is characterized in that, described control circuit comprises PLC Programmable Logic Controller (9), described PLC Programmable Logic Controller (9) receives the digital signal of A/D module (8), and described A/D module (8) receives the analog signal of described tension pick-up (7); Described PLC Programmable Logic Controller (9) carries out data with the digital signal transfers that receives to host computer (10) to be processed, and the signal output after described host computer (10) will be processed feeds back to described PLC Programmable Logic Controller (9); Described PLC Programmable Logic Controller (9) passes to respectively unwrapping wire motor D/A module (11) and take-up motor D/A module (13) with the digital signal of feedback after inner PID processes; Described unwrapping wire motor D/A module (11) is converted to analog signal with the digital signal that receives and passes to described unwrapping wire motor frequency conversion device (12), described unwrapping wire motor frequency conversion device (12) is controlled the payingoff speed of described unwrapping wire motor (6) according to the size of analog signal; Described take-up motor D/A module (13) is converted to analog signal with the digital signal that receives and passes to described take-up motor frequency conversion device (14), and described take-up motor frequency conversion device (14) is controlled the take-up speed of described take-up motor (5) according to the size of analog signal.
3. a kind of superconducting cable conductor stranded cable tension automatic control system according to claim 1 is characterized in that, the central shaft of described draw drum (2) parallels with the central shaft of described unwrapping wire motor (6), is installed on the same body frame by belt.
4. a kind of superconducting cable conductor stranded cable tension automatic control system according to claim 1 is characterized in that, the guide roller of described tension pick-up (7) is positioned between two described guide rollers (3).
5. a kind of superconducting cable conductor stranded cable tension automatic control system according to claim 2, it is characterized in that, the analog signal of the described tension pick-up (7) that described A/D module (8) receives is 4～20mA current signal, and current signal is converted to digital signal.
6. a kind of superconducting cable conductor stranded cable tension automatic control system according to claim 2 is characterized in that, described PLC Programmable Logic Controller (9) is Siemens PLC C-S7-300 Programmable Logic Controller.
7. a kind of superconducting cable conductor stranded cable tension automatic control system according to claim 2 is characterized in that, described host computer (10) is upper industrial computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220229842 CN202839133U (en) | 2012-05-22 | 2012-05-22 | System for automatically controlling tension of stranded cables of superconducting conductors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220229842 CN202839133U (en) | 2012-05-22 | 2012-05-22 | System for automatically controlling tension of stranded cables of superconducting conductors |
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| Publication Number | Publication Date |
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| CN202839133U true CN202839133U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220229842 Expired - Fee Related CN202839133U (en) | 2012-05-22 | 2012-05-22 | System for automatically controlling tension of stranded cables of superconducting conductors |
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| CN (1) | CN202839133U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664078A (en) * | 2012-05-22 | 2012-09-12 | 白银有色集团股份有限公司 | System for automatically controlling tension of stranded cables of superconducting conductor |
| CN103274175A (en) * | 2013-04-12 | 2013-09-04 | 大连交通大学 | Belt conveyor hydraulic tensioning force intelligent control instrument |
| CN107505493A (en) * | 2016-11-04 | 2017-12-22 | 洛阳理工学院 | A kind of controllable superconduction belt material critical current measuring device of tension force |
-
2012
- 2012-05-22 CN CN 201220229842 patent/CN202839133U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664078A (en) * | 2012-05-22 | 2012-09-12 | 白银有色集团股份有限公司 | System for automatically controlling tension of stranded cables of superconducting conductor |
| CN103274175A (en) * | 2013-04-12 | 2013-09-04 | 大连交通大学 | Belt conveyor hydraulic tensioning force intelligent control instrument |
| CN107505493A (en) * | 2016-11-04 | 2017-12-22 | 洛阳理工学院 | A kind of controllable superconduction belt material critical current measuring device of tension force |
| CN107505493B (en) * | 2016-11-04 | 2023-09-26 | 洛阳理工学院 | Tension-controllable superconducting strip critical current measuring device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20210522 |