CN107505493A - A kind of controllable superconduction belt material critical current measuring device of tension force - Google Patents
A kind of controllable superconduction belt material critical current measuring device of tension force Download PDFInfo
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- CN107505493A CN107505493A CN201610960810.0A CN201610960810A CN107505493A CN 107505493 A CN107505493 A CN 107505493A CN 201610960810 A CN201610960810 A CN 201610960810A CN 107505493 A CN107505493 A CN 107505493A
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- chute
- sliding block
- superconducting tape
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
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Abstract
A kind of controllable superconduction belt material critical current measuring device of tension force, it is related to superconduction belt material critical current measuring device field, including liquid nitrogen tank, monitoring system, four lead measuring systems and superconducting tape advance system, tension-adjusting gear is provided with superconducting tape advance system, tension-adjusting gear includes elastic wheel assembly, sliding block, fixed seat and push rod, elastic wheel assembly connects as one with sliding block, sliding block is slidably arranged in the chute of fixed seat and elastic wheel assembly can be driven to move, push rod one end stretch into chute and by a spring top on sliding block so that the superconducting tape being stretched on elastic wheel assembly has an initial tension, fixed seat, which is provided with, to be used to detect moving direction of the sliding block in superconducting tape traveling process and feeds back the superconducting tape induction installation of pine or tension signal excessively to monitoring system.The present invention can make the Tensity size of superconducting tape stable within the specific limits in measurement process, and measurement data accuracy is high and will not be damaged superconductivity.
Description
Technical field
The present invention relates to superconduction belt material critical current measuring device technical field, and in particular to a kind of with tension force
Superconduction belt material critical current measuring device.
Background technology
Critical current is the Important Parameters for characterizing superconductor current capacity, and weighs the major technique of superconductor quality
Index, the self-characteristic of material can not only be explored by studying its measurement means, moreover it is possible to be the applicating and exploitation service of material.Mostly
The acquisition of number critical current uses magnetic strength method, is computed obtaining indirectly, avoid or reduces hair of the galvanic electrode under high current
Heat problem, but such method may only rough measure critical current, and use range is limited.Most intuitively, most can truly reflect
The measuring method of material practical current capacity in itself should be steady-state DC transmission method, i.e. four leads methods.Four lead measuring methods
It is exactly to provide electric current to sample by current source by two leads, voltage drop is measured using nanovoltmeter by other two leads,
And then the resistance value of sample is conversed, measure v-l curves, then determine critical current.
At present, using four leads methods in the measurement of superconductive long strip, first, using the method for welding, solder joint is placed on into band
Both ends, measure the critical current of whole root long band, it can not learn the uniformity of band and defect etc. for information about, and weld
Band afterwards can not be continuing with；Second, measuring the critical current of long band using magnetic strength method, this measuring method can only be surveyed indirectly
Critical current is measured, measured value inaccuracy is not directly perceived.In addition, also there is the tetrode method using crimping measurement form, it is profit
Make long with traveling, certain length of often advancing with band transmission device, the critical current of this section measured using electric current and voltage probe,
Until survey complete long band.Existing such a measurement apparatus in the traveling process of long band, the tension force of long band easily change from
And the problem of producing pine or tension, this superconductivity that may result in superconducting tape is damaged or measurement result is inaccurate
The problem of.
The content of the invention
It is an object of the invention to provide a kind of controllable superconduction belt material critical current measuring device of tension force, this measurement apparatus profit
With the critical current of four leads methods measurement superconductive long strip, its is simple to operate, easy to use, can quickly and accurately measure superconductive tape
The critical current of material, and obtain the information such as uniformity and the defect of the long band of high-temperature superconductor.
To achieve the above object, the technical scheme is that：A kind of controllable superconduction belt material critical current measurement of tension force
Device, including liquid nitrogen tank, monitoring system, four lead measuring systems and superconducting tape advance system, in superconducting tape advance system
Superconducting tape is wrapped on discharge plate and is accommodated in after its other end pile warp tension sensor, encoder assembly and some guide wheels
On rewinding disk, tension-adjusting gear is additionally provided with superconducting tape advance system, tension-adjusting gear includes elastic wheel assembly, cunning
Block, fixed seat and push rod, elastic wheel assembly connect as one with sliding block, are provided with chute inside fixed seat, sliding block is slidably arranged in
In chute and elastic wheel assembly can be driven to move, spring is placed with the side of sliding block in chute, chute is stretched into push rod one end
It is interior and by the Roof that its end connects in one end of spring, after spring is compressed its other end be resisted against on sliding block so that
Tightly the superconducting tape on elastic wheel assembly has an initial tension, and the length of chute is stretched into adjust cunning by adjusting push rod
Initial position of the block in chute and then to adjust the initial tension size of superconducting tape, the side of the outer fixed seat of the chute is set
There is induction installation, to detect the moving direction of sliding block in superconducting tape traveling process and feed back the excessively loose of superconducting tape accordingly
Or tension signal is controlled to monitoring system, monitoring system according to the signal and tension data of induction installation and tension sensor feedback
Discharge plate processed and the respective running speed of rewinding disk.
Further, the induction installation includes the magnetic switch I set respectively close to chute end positions and magnetic is opened
Close II, sliding block is provided with magnet ring, in superconducting tape traveling process sliding block to chute one end slide when, the magnetic of chute respective end
Property switch perceive magnet ring it is close so that send superconducting tape excessively pine or tension signal to monitoring system.
The chute is set through the both ends of the surface of fixed seat, chute end cap is fixed with fixed seat end face, with fixed seat
Other end is relatively set with a push rod bearing, push rod one end through after the screwed hole set on push rod bearing from fixed seat one end
Stretch into chute, the shaft of push rod coordinates with the screwed hole screw thread.
The four leads measuring system includes two current bars, two voltage rods, four cylinders, four magnetic valves and one
Gas pressure reducer, four cylinders drive two current bars and two voltage rod motions and lifted and drop action with realizing respectively, gas
Body pressure-reducing valve is connected by tracheae with four magnetic valves, and four magnetic valves are connected by tracheae with respective cylinder, and monitoring system is led to
Cross the motion that four magnetic valves control four cylinders respectively.
The cylinder axis of four cylinders are connected by insulating bar with one end of corresponding current bar or voltage rod, on each cylinder
It is equipped with positioning runner, a fixed slide on insulating bar, slide is provided with a positioning sliding block, and cylinder axis are fixed in telescopic process
Position sliding block slides with insulating bar in positioning runner.
Beneficial effect：Tension-adjusting gear and tension sensor are provided with superconducting tape advance system, can be in time to prison
Tension data and elastic signal of the system feedback superconducting tape during traveling are controlled, so as to adjust discharge plate and receipts in time
The running speed of charging tray, and then make the Tensity size of superconducting tape stable within the specific limits, improve the accurate of measurement data
Property, and can avoid because superconductivity is damaged caused by overtension the problem of.Tension-adjusting gear can also be to superconductive tape
The initial tension size of material is adjusted, and makes up to initial preset tension value when superconducting tape starts to advance, and make superconduction
Band is close on the guide wheel of encoder assembly, makes encoder count accurate.Four lead measuring systems use cylinder driving current
Lift and fall with voltage probe, be engaged, superconducting tape can be faced paragraph by paragraph with the superconducting tape advance system of the present invention
Boundary's electric current measures, and measurement is convenient, and measurement result is accurate.
Brief description of the drawings
Fig. 1 is the overall structure figure of the present invention；
Fig. 2 is the four lead measuring systems of the present invention and the layout of superconducting tape advance system；
Fig. 3 is the four lead measuring systems of the present invention and the structure chart of superconducting tape advance system；
Fig. 4 is Fig. 3 left view；
Fig. 5 is the partial enlarged drawing at I in Fig. 3；
Fig. 6 is the partial enlarged drawing at II in Fig. 3；
Fig. 7 is the partial enlarged drawing at III in Fig. 4；
Fig. 8 is the partial enlarged drawing at IV in Fig. 4；
Fig. 9 is the overall structure figure of tension-adjusting gear；
Figure 10 is the explosive view of tension-adjusting gear；
Figure 11 is another explosive view of tension-adjusting gear；
Figure 12 is the installation diagram of tension-adjusting gear；
Figure 13 is the explosive view of elastic wheel assembly；
Reference is：1st, liquid nitrogen tank, 2, liquid nitrogen tank car, 3, ball valve, 4, tension sensor, 5, encoder assembly, 6, cylinder I,
7th, cylinder II, 8, cylinder mount frame, 9, current bar I, 10, voltage rod I, 11, lower tumbler I, 12, indium I, 13, indium II, 14, under lead
Wheel II, 15, voltage rod II, 16, current bar II, 17, G10 epoxy plate panels, 18, steelframe, 19, upper block, 20, cylinder IV, 21,
Tension-adjusting gear, 22, infrared drying device, 23, rewinding disk, 24, cylinder III, 25, magnetic valve IV, 26, magnetic valve III, 27, gas
Body pressure-reducing valve, 28, magnetic valve II, 29, magnetic valve I, 30, discharge plate, 31, superconduction detection band, 32, stepper motor I, 33, stepping
Motor II, 34, bridge plate, 35, Pneumatic speed regulating valve, 36, Cylinder mount bracket, 37, slide, 38, insulating bar, 39, trough of belt backing plate,
40th, trough of belt II, 41, trough of belt I, 42, electrode fixation clamp, 43, electrode clamp pad, 44, electrode tip holder, 45, encoder, 46, compile
Code device guide wheel, 47, bearing block I, 48, shaft coupling I, 49, encoder power transmission shaft, 50, encoder mounting rack, 51, encoder support,
52nd, encoder support clamping plate, 53, motor mounting rack, 54, bearing block II, 55, power output shaft, 56, shaft coupling II, 57, braking
Device, 58, motor cabinet, 59, chute end cap, 60, sliding block, 61, elastic wheel assembly, 62, anti-drop cover, 63, shaft block ring, 64, magnet ring,
65th, spring, 66, jump ring, 67, top plate, 68, magnetic switch I, 69, magnetic switch II, 70, chute, 71, push rod, 72, fixed seat,
73rd, push rod bearing, 74, loosening and tightening wheel, 75, sealed bearings, 76, elastic wheel shaft, 77, hole back-up ring, 78, screw, 79, loosening and tightening wheel wheel
Groove.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, the controllable superconduction belt material critical current measuring device of a kind of tension force, including liquid nitrogen tank
Car 2, monitoring system, four lead measuring systems and superconducting tape advance system, liquid nitrogen tank car 2 have the liquid nitrogen for being used for containing liquid nitrogen
Groove 1, the liner of liquid nitrogen tank 1 use high density polyurethane foam, and high density polyurethane foam has in light weight, low temperature resistant and heat-insulation and heat-preservation
Good characteristic, it can farthest play a part of security protection and reduce liquid nitrogen vaporization speed.Four lead measuring systems are used
In the critical current of measurement superconduction detection band paragraph by paragraph.A G10 epoxy plates panel 17, G10 epoxies are provided with liquid nitrogen tank car 2 vertically
Plate face plate 17 is fixed on steelframe 18, and steelframe 18 is erected on liquid nitrogen tank car 2, and four lead measuring systems and superconducting tape are advanced and be
System is fixed on G10 epoxy plates panel 17.
Superconducting tape advance system includes discharge plate 30, tension sensor 4, encoder assembly 5, lower tumbler I 11, lower tumbler
II 14, upper block 19, tension-adjusting gear 21 and rewinding disk 23.Superconduction detection band is wrapped on discharge plate, through tension sensor
4th, encoder assembly 5, lower tumbler I 11, lower tumbler II 14, upper block 19, tension-adjusting gear 21 are accommodated in rewinding disk after being tensioned
On 23.Discharge plate 30 and rewinding disk 23 are located at the top of G10 epoxy plates panel 17, and encoder assembly 5 and upper block 19 are solid respectively
Two side positions of G10 epoxy plate upper panels are scheduled on, lower tumbler I 11 and lower tumbler II 14 are separately fixed at G10 epoxy plate panels
Two side positions of bottom, and it is consistent lower tumbler I 11 and the height of lower tumbler II 14.In tension-adjusting gear 21 and rewinding disk
Infrared drying device 22 is additionally provided between 23, for being dried to the superconduction detection band after detection.Wherein, lower tumbler I 11, under lead
The material for taking turns II 14, upper block 19 and encoder guide wheel 46 uses polytetrafluoroethylmaterial material.
As shown in Fig. 3, Fig. 4, Fig. 8, discharge plate 30 and rewinding disk 23 are driven by stepper motor I 32 and stepper motor II 33 respectively
Dynamic rotation, illustrates its assembling structure by taking stepper motor I 32 as an example.Motor mounting rack 53 is arranged on motor cabinet 58, motor cabinet 58
It is fixed on steelframe 18, stepper motor I 32 is by brake 57 in the side of motor mounting rack 53, motor mounting rack 53
Between shaft coupling II 56 is installed, the one end of shaft coupling II 56 access brake drive shaft is connected with brake 57, and the other end then accesses
Power output shaft 55 is connected with bearing block II 54, and the other end of power output shaft 55 installation discharge plate 30, bearing block II 54 is arranged on
On motor mounting rack 53, power output shaft 55 is arranged in bearing block II 54.Two stepper motors are equipped with brake 57, braking
Device 57 controlled motor can stop walking and eliminate system inertia in time at any time, therefore accurate positioning.Double Motor Control, therefore can distinguish as needed
Flexible operating, it can ensure that detection band operates steadily in work and speed is adjustable.
As shown in Fig. 3, Fig. 4, Fig. 6, Fig. 7, encoder assembly 5 include encoder 45, encoder guide wheel 46, bearing block I 47,
Shaft coupling I 48, encoder power transmission shaft 49, encoder mounting rack 50, encoder support 51 and encoder support clamping plate 52 etc., its
In, encoder mounting rack 50 is arranged on steelframe 18 by encoder support 51 and encoder support clamping plate 52, encoder installation
The side of frame 50 is provided with encoder 45, and shaft coupling I 48, the one end of shaft coupling I 48 and coding are provided among encoder mounting rack 50
Device axle is connected, and the other end is connected by encoder power transmission shaft 49 with bearing block I 47, and bearing block I 47 is arranged on encoder and installed
On frame 50, encoder power transmission shaft 49 passes through bearing block I 47, and its other end is then used to install encoder guide wheel 46.Superconduction detection band
It is stretched in pile warp encoder assembly 5 on encoder guide wheel 46.
The effect of the tension sensor 4 is：The tension force value signal of Real-time Feedback superconduction detection band 31, make monitoring system and
When adjust superconducting tape advance system in superconduction detection band 31 Tensity size, be allowed to be attributed to safety value.Due to superconductive tape plated film
Layer, if superconductive tape overtension, will damage the superconducting characteristic of superconductive tape, if superconductive tape is excessively loose to the sensitiveness of superconduction belt tension
The accuracy of the feedback information of encoder 45 will be influenceed, so the tension force of superconductive tape must control the safe range in superconductive tape
It is interior.Superconductive tape detect start when, on the one hand using tension-adjusting gear 21 by the tension adjustment of superconduction detection band 31 to preset
Value, on the other hand, in the detection process of superconduction detection band 31, because the coiling radius of superconduction detection band 31 in rewinding disk 23 is more next
Bigger, its linear velocity is more and more faster, and the coiling radius of superconduction detection band 31 is less and less in discharge plate 30, and its linear velocity is more next
It is smaller, it certainly will so cause the tension variation of superconduction detection band 31（In the situation of the rotating speed of the signal of encoder 45 control rewinding disk 23
Under）, then monitoring system can provide in real time according to superconducting tape tension sensor 4 superconductive tape tension signal passes through stepper motor I
The rotating speed of 32 adjustment discharge plates 30, is allowed to increase or decrease.
The effect of the encoder 45 is：During superconduction detection band 31 travels at the uniform speed, the feedback signal of encoder 45
On the one hand it is used for the range ability for measuring superconduction detection band 31, is on the other hand used for the speed of service for controlling superconduction detection band 31.
In supercurrent detection process, due to the coiling of superconduction detection band 31 in rewinding disk 23, its radius is increasing over time,
If if the running speed of stepper motor II 33 is constant, then its angular speed is constant and its linear velocity will be more and more faster, that is to say, that
The speed of service of superconduction detection band 31 will be increasingly faster, therefore, when encoder 45 detects the operation speed of superconduction detection band 31
During degree change, monitoring system will be fed back in real time, is allowed to adjust the rotating speed of stepper motor II 33, make it be attributed to setting and turn
Speed, if conversely, the speed of service of superconduction detection band 31 slows down, make its speedup.
As shown in Fig. 2, Fig. 9, Figure 10, Figure 11, Figure 12 and Figure 13, the tension-adjusting gear include elastic wheel assembly 61,
Sliding block 60, fixed seat 72 and push rod 71, elastic wheel assembly 61 include loosening and tightening wheel 74, the seal shaft being arranged in the endoporus of loosening and tightening wheel 74
Hold 75 and the elastic wheel shaft 76 being installed in sealed bearings 75, the step that the one end of sealed bearings 75 passes through setting at loosening and tightening wheel endoporus
Positioning, the other end are positioned by the hole back-up ring 77 being arranged in loosening and tightening wheel endoporus, the shaft shoulder that elastic wheel shaft 76 passes through its own
The shaft block ring 63 of structure and the one end of sealed bearings 75 positions.One end of elastic wheel shaft 76 is connected with sliding block 60, and the other end passes through
Screw 78 connects an anti-drop cover 62, and superconduction detection band 31 is stretched in the loosening and tightening wheel race 79 of loosening and tightening wheel 74, and anti-drop cover 62 rises
To the effect for preventing that superconduction detection band from departing from out of loosening and tightening wheel race 79.The rectangular cross-section structure of fixed seat 72, pass through inside it
Wear its left and right ends face and offer chute 70, sliding block 60 is slideably positioned in the chute 70 of fixed seat 72 and can drive loosening and tightening wheel
Assembly 61 moves left and right outside fixed seat 72, so as to adjust the tension force of superconduction detection band 31.The end face of fixed seat 72
Chute end cap 59 is provided with, sliding block 60 is blocked in chute 70, one is relatively set with the other end of fixed seat 72
Push rod bearing 73, the bottom of push rod bearing 73 are fixed on G10 epoxy plates panel 17, and its underpart can be connected as one with fixed seat 72
Body.The one end of push rod 71 is stretched into chute 70 after passing through the screwed hole on push rod bearing 73 from the end face of fixed seat 72, stretches into cunning
One end of push rod 71 in groove 70 is fixed with a top plate 67 by jump ring 66, and chute 70 is interior between sliding block 60 and the top plate 67 of push rod
A spring 65 is placed with, cooperation is threadedly coupled between the shaft and the screwed hole on push rod bearing 73 of push rod 71.Screw push rod 71
Compressed spring 65 and promote sliding block 60 to slide, screwed push rod 71 to correct position, make to be stretched in the superconduction on loosening and tightening wheel
The initial tension of detection band 31 is adjusted to the setting value of tension sensor 4.When superconduction detects beginning, superconduction detection band 31 has
Initial tension can be close on the guide wheel 46 of encoder assembly 5, make the accuracy of reading of encoder 45.Superconduction detection band is advanced
During the position of push rod 71 it is motionless, the side of the outer fixed seat 72 of chute 70 is provided with induction installation, in superconduction detection band
The moving direction of sliding block 60 is detected in traveling process and the pine excessively of feedback superconduction detection band 31 or tension signal are to monitoring accordingly
System, monitoring system control discharge plate 30 and rewinding according to the signal and tension data of induction installation and the feedback of tension sensor 4
23 respective running speed of disk.The induction installation includes the He of magnetic switch I 68 set respectively close to the end positions of chute 70
Magnetic switch II 69, magnetic switch I 68 and magnetic switch II 69 are installed in the groove opened up in the side wall of fixed seat 72, sliding block 60
Be provided with magnet ring 64, in the traveling process of superconduction detection band 31 sliding block 60 to certain one end of chute 70 slide when, the respective end of chute 70
Magnetic switch perceive magnet ring 64 it is close so that send superconducting tape excessively pine or tension signal to monitoring system.
As shown in Fig. 2, Fig. 3, Fig. 5, the four leads measuring system includes two current bars, two voltage rods, four gas
Cylinder, four magnetic valves and a gas pressure reducer 27, four cylinders drive respectively two current bars and two voltage rod motions with
Realization is lifted and drop action, and gas pressure reducer 27 is connected by tracheae with four magnetic valves, four magnetic valves by tracheae with
Respective cylinder connects, and monitoring system controls the motion of four cylinders by four magnetic valves respectively.Two current bars and two electricity
The respective driving structure of pressure bar is identical with motion principle, illustrates below by taking current bar I 9 as an example, and current bar I 9 is driven by cylinder I 6,
Gas pressure reducer 27 is connected by tracheae with magnetic valve I 29, and magnetic valve I 29 is adjusted by two on two-way tracheae and cylinder I 6 are pneumatic
Fast valve 35 is connected, and magnetic valve I 29 is also separately connected to power line and is connected with control circuit, receives the electric signal of control circuit, to adjust
Section commutates by the compressed air of itself, to reach the purpose that control cylinder I 6 acts.Cylinder I 6 is arranged on cylinder installation branch
On frame 36, Cylinder mount bracket 36 is arranged on G10 epoxy plates panel 17, and cylinder I 6 passes through cylinder axis and the upper end phase of insulating bar 38
Even, it is screwed, the lower end of insulating bar 38 is connected with the upper end of current bar I 9, is screwed, and current bar I 9 is located at by G10 rings
In the passage of two arrays of electrodes fixation clamp component composition on oxygen plate face plate 17, current bar I 9 can only transport straight line in the passage
It is dynamic.The material of insulating bar 38 is polytetrafluoroethylene (PTFE), and it plays a part of insulation, every cold and fixed current rod I 9, it every cold
Effect, which can be played, avoids cylinder component（Including sealing ring）By nitrogen ultra low temperature（-196℃）Damage.Electrode fixation clamp
Component includes：Electrode fixation clamp 42, electrode clamp pad 43 and electrode tip holder 44 etc..Current bar I 9 is provided with overlap joint flat copper band
（For connecing current source, material：Red copper T1）Ear, the access of flat copper band is screwed during work, the lower end of current bar I 9 is then
It is working face, with trough of belt I 41 and the cooperating of trough of belt backing plate 39.Trough of belt I 41 and trough of belt backing plate 39 are arranged on G10 epoxy plate panels
On 17.The bridge plate 34 of polytetrafluoroethylene (PTFE) material is provided between two troughs of belt being engaged with two voltage rods 10,15, is also mounted at G10
On epoxy plate panel 17.Both current bar I 9 and current bar II 16 lower end working faces are provided with indium metal I 12, and two current bars exist
Superconduction detection band is pressed on corresponding two troughs of belt I 41 by lower backwardness, allows the electric current of current source to pass through superconduction detection band.Voltage rod
I 10 and voltage rod II 15 both lower end working faces be provided with indium metal II 13, two voltage rods are in lower backwardness by superconduction detection band
It is pressed on corresponding two troughs of belt II 40, to measure the voltage drop of the superconduction detection band between two voltage rods probe.Indium metal has
Conductive good, soft performance, therefore can play a part of protecting superconduction calibration tape.The motion principle of current bar I 9 is：Open
Gas pressure reducer 27, delivery air pressure is adjusted to 0.5MPa or so, cylinder I 6 is under the control of magnetic valve I 29, driving current rod I
9 complete the action lifting and fall, and Pneumatic speed regulating valve 35 then plays a part of regulation and lifted and speed of fall.
Radial rotating, which may occur, for cylinder axis during due to cylinder moving can rotate current bar or voltage rod, to prevent
The occurrence of such a, it is equipped with positioning runner on four cylinders, a fixed slide 37 on insulating bar 38, slide 37 is provided with one
Individual positioning sliding block, cylinder axis positioning sliding block in telescopic process slide with insulating bar 38 in positioning runner, so serve limit
The effect that cylinder axis processed rotate in motion, ensures that position shape does not occur for current bar and voltage rod lower end working face
The change of state, and then avoid superconductive tape film plating layer to greatest extent and do not destroyed by spin friction.
This measurement apparatus is as follows using the detecting step of the tetrode method of crimping measurement form：
1st, current bar in device I 9 and current bar II 16 are used into flat copper band connection to current source, by voltage rod I 10 and voltage rod II
15 are connected to nanovoltmeter with fine copper wire, by two stepper motors 32 and 33, two brakes 57, encoder 45, tension sensor 4, red
The power supply and data wire of outer baker 22 and tension-adjusting gear 21 are connected to relevant device, and source of the gas tracheae is communicated to and pneumatically subtracted
The input of pressure valve 27, pneumatic pressure-release valve 27 is opened, operating pressure is adjusted to 0.5MPa or so, now, two current bars and two voltages
Rod will lift（Lift as system initial state）.
2nd, the discharge plate 30 with superconduction detection band 31 and rewinding disk 23 are installed in place, by superconduction detection band 31 by blowing
Disk 30 is drawn, through under the trough of belt I 41 below tension sensor 4, encoder assembly 5, lower tumbler I 11, two current bars, two voltage rods
Trough of belt II 40, bridge plate 34, lower tumbler II 14, upper block 19, tension-adjusting gear 21 and the infrared drying device 22 of side are installed to receipts
Charging tray 23.Pay attention to：It is certain when must ensure coated surface by trough of belt I 41, trough of belt II 40 and bridge plate 34 when detection band is installed
Will be upward.
3rd, the stepper motor 33 of rewinding disk 23 is started, gives superconduction detection band 31 1 tension force, is then filled by tension adjustment
Put 21 setting values by the tension adjustment of superconduction detection band 31 to tension sensor 4.
4th, liquid nitrogen is inputted into liquid nitrogen tank car 2, liquid level reaches in the middle part of tank car.
5th, computer is opened, opens supercurrent test software（Whole software is divided into two parts：" control section " and " detection
Part "）, the diameter that detection band winds contact position by encoder guide wheel 46, system call interception are inputted in " control software " interface
After good, input test point spacing（The distance between voltage rod I 10 and voltage rod II 15）And the full length tested with needs；If it is
If unified test try test point spacing is 1000mm, then " control software " will provide according to encoder 45 during system operation data
Signal sends instruction, the unit detection stroke of control superconduction detection band 31 in time（Such as：1000mm）, when superconduction detection band 31 is run
When reaching setting length, " control software " shows signal, and show travel distance and accumulative travel distance in place.At this point it is possible to
Magnetic valve is manipulated by " control software "（Sequence number 25,26,28,29）Drive cylinder（Sequence number 6,7,20,24）By current bar（Sequence number
9、16）With voltage rod（Sequence number 10,15）Fall, confirm after detection band is compacted on trough of belt, turn-on current source and nanovoltmeter,
" test software " control is lower to carry out supercurrent detection.After the completion of supercurrent detection, current source is closed, closes nanovoltmeter,
Under " control software " operation, it is driven by the cylinder and lifts current bar and voltage rod, then repeatedly said process.
6th, after the completion of superconduction detection band 31 all detection, " control software " can send cue, wait and grasping in next step
Make.If detection terminates, liquid nitrogen is reclaimed by Tank Lorry Ball Valves 3, rewinding disk 23 is received and kept.
Claims (5)
1. a kind of controllable superconduction belt material critical current measuring device of tension force, including liquid nitrogen tank, monitoring system, four leads measurement system
Unite and superconducting tape advance system, superconducting tape is wrapped on discharge plate in superconducting tape advance system and its other end pile warp is opened
It is accommodated in after force snesor, encoder assembly and some guide wheels on rewinding disk, it is characterised in that：In superconducting tape advance system
Be additionally provided with tension-adjusting gear, tension-adjusting gear includes elastic wheel assembly, sliding block, fixed seat and push rod, elastic wheel assembly with
Sliding block is connected as one, and chute is provided with inside fixed seat, and sliding block is slidably arranged in chute and elastic wheel assembly can be driven to move
It is dynamic, spring is placed with chute in the side of sliding block, push rod one end is stretched into the Roof connected in chute and by its end and existed
One end of spring, its other end is resisted against on sliding block the superconducting tape tool so as to be stretched on elastic wheel assembly after spring is compressed
There is an initial tension, stretch into the length of chute by adjusting push rod and adjusted come initial position of the adjusting slider in chute
The initial tension size of superconducting tape is saved, the side of the outer fixed seat of the chute is provided with induction installation, in superconducting tape row
The moving direction of sliding block is detected during entering and feeds back the excessively loose or tension signal of superconducting tape accordingly to monitoring system, monitoring system
System controls discharge plate and the respective operating of rewinding disk according to the signal and tension data of induction installation and tension sensor feedback
Speed.
A kind of 2. controllable superconduction belt material critical current measuring device of tension force as claimed in claim 1, it is characterised in that：It is described
Induction installation includes the magnetic switch I and magnetic switch II set respectively close to chute end positions, and sliding block is provided with magnet ring,
In superconducting tape traveling process sliding block to chute one end slide when, the magnetic switch of chute respective end perceives magnet ring close to entering
And the superconducting tape signal of pine or tension excessively is sent to monitoring system.
A kind of 3. controllable superconduction belt material critical current measuring device of tension force as claimed in claim 1, it is characterised in that：It is described
Chute is set through the both ends of the surface of fixed seat, and chute end cap is fixed with fixed seat end face, relative with fixed seat other end
A push rod bearing is provided with, push rod one end is stretched into chute after passing through the screwed hole set on push rod bearing from fixed seat one end,
The shaft of push rod coordinates with the screwed hole screw thread.
A kind of 4. controllable superconduction belt material critical current measuring device of tension force as claimed in claim 1, it is characterised in that：It is described
Four lead measuring systems include two current bars, two voltage rods, four cylinders, four magnetic valves and a gas pressure reducer,
Four cylinders drive two current bars and two voltage rod motions and lifted and drop action, gas pressure reducer pass through with realizing respectively
Tracheae is connected with four magnetic valves, and four magnetic valves are connected by tracheae with respective cylinder, and monitoring system passes through four magnetic valves
The motion of four cylinders is controlled respectively.
A kind of 5. controllable superconduction belt material critical current measuring device of tension force as claimed in claim 4, it is characterised in that：Four
The cylinder axis of cylinder are connected by insulating bar with one end of corresponding current bar or voltage rod, and positioning is equipped with each cylinder and is slided
Groove, a fixed slide on insulating bar, slide are provided with a positioning sliding block, cylinder axis in telescopic process positioning sliding block with insulation
Rod slides in positioning runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN112327229A (en) * | 2020-12-02 | 2021-02-05 | 东部超导科技（苏州）有限公司 | Twisting device and method for detecting twisting performance of high-temperature superconducting tape |
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