CN201425717Y - Discharge type electromagnetic deviation correcting system - Google Patents
Discharge type electromagnetic deviation correcting system Download PDFInfo
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- CN201425717Y CN201425717Y CN2009200761187U CN200920076118U CN201425717Y CN 201425717 Y CN201425717 Y CN 201425717Y CN 2009200761187 U CN2009200761187 U CN 2009200761187U CN 200920076118 U CN200920076118 U CN 200920076118U CN 201425717 Y CN201425717 Y CN 201425717Y
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Abstract
The utility model relates to the production field of metal strips, in particular to a deviation correcting system during the production of metal strips. The discharge type electromagnetic deviation correcting system comprises an outer cylinder rotor (1), an annular ferromagnet (2), a discharge bearing (3), electromagnets (4), a stator (5), a support frame (6), a displacement sensor (7), a computercontrol system (8) and a metal strip position detection device (9), wherein the discharge bearing (3) has the aligning function and is mounted on the stator (5) and positioned between the two electromagnets (4) so as to support the outer cylinder rotor (1). The deviation correcting system decouples the moment caused by static load force borne by a deviation correcting roll and misalignment; the static load force borne by the deviation correcting roll is undertaken by the discharge bearing during the deviation correction; the electromagnets are only used for deviation correction; and the corrective moment is generated to cause the deviation correcting roll to swing. Thereby, the utility model reduces the power and the heating value required by an electromagnetic component, gives full playto the advantage of quick response speed of electromagnetic drive, achieves quick deviation correction, and has wide application prospect in the field of continuous cold rolling, continuous annealingand galvanization.
Description
Technical field
The utility model relates to the sheet metal strip production field, relates in particular to a kind of sheet metal strip deviation-rectifying system when producing.
Background technology
In modernized continuous band is produced, owing to equipment is installed, the reason of the aspects such as plate shape of band, deviation phenomenon can appear in the band of high-speed cruising, make strip surface occur scratching, reduced product quality, also can cause production and equipment breakdowns such as broken belt when serious, reduce labour productivity, increase troubleshooting time and expense.Therefore, some deviation correcting devices need be installed on the band production line.On high speed band tinuous production, the still band position probing that the most generally adopts at present is in conjunction with the deviation-rectifying system of correction roller control.
The correction roller mainly contains following several type of drive:
The servo correction driving method of electricity-liquid.The use of this method is the most general, be that the correction roller is installed on the unsteady frame, electro-hydraulic seryo system is according to the detected band position signalling of photoelectric sensor that is installed on the band production line, control the unsteady frame deflection of Driven by Hydraulic Cylinder, thereby change the angle of correction roller and band traffic direction, reach the purpose of correction.This method for correcting error is the method for commonplace employing on the present high speed output strip line.But this method has the shortcoming of following several respects: (1) deviation correcting device inertia is big; (2) system complex; (3) hydraulic system leakage; (4) system responses is slow.Therefore, adopt the device of this method for correcting error itself to tend to cause quality of production accident and unnecessary shutdown.
The pneumatic actuation method.Jap.P. JP200298519 has introduced this method, and correction roll shaft one end is installed pivot, and the correction roller can rotate around this end; The other end is connected with cylinder, and control system is according to the detected band position signalling of position transducer that is installed on the band production line, and the stroke of control cylinder is realized correction to change the angle of correction roller and band traffic direction.Adopting a major defect of this method for correcting error is exactly that response speed is slow, can't solve the sideslip problem of high speed band.
Chinese patent CN02159175.X utilizes magnetic force and mill pressure mode that band is rectified a deviation.The shortcoming of the magnetic force correction in this patent is: (1) only is applicable to the magnetic band; (2) centering capacity is low.It is above main live-roller two ends two mill pinch rollers to be set that mill is pressed correction, and the both sides of band are sandwiched between live-roller and the mill pinch roller, and mill pinch roller by regulating a certain side and the pressure between the live-roller or elasticity realize correction.This method relatively is suitable for strip, and owing to grind compressing of pinch roller, band xsect Tension Distribution inequality, strip surface can produce the impression defective along traffic direction.
High precision band production line substantially all is to adopt monoblock type correction roller both at home and abroad at present, promptly adopts the deflection of Servo Drive correction roller to realize correction.This correction roller is big except structure inertia, response speed is slow, system maintenance complicated, also have one more important disadvantages be exactly band drives correction roller unitary rotation, increased the chance that band scratched and produced other strip surface defective.
The Electromagnetic Drive method.Number of patent application is that 200610147759.8 Chinese patent has been introduced a kind of unofficial biography minor method for correcting error, and this patent is to realize correction by the deflection angle of electromagnetic force adjustment correction roller outer rotor.Therefore the problem that engineering practicalities such as this method exists because of carrying rotor weight and strap tension component and causes the increase of electromagnetism winding power consumption, and thermal value is big can't overcome needs further improvement.
The utility model content
Technical problem to be solved in the utility model provides a kind of unload-type electromagnetic rectification system, the moment decoupling zero that causes by suffered static load power of the roller of will rectifying a deviation and sideslip, allow the power consumption of electromagnet only be responsible for producing correction moment realization deviation rectification of strip, the suffered static load power of correction roller is born by the unloading bearing, to solve electromagnetism winding power consumption height in the prior art, the defective that thermal value is big.
A kind of unload-type electromagnetic rectification system, comprise the urceolus rotor, the annular ferromagnet, electromagnet, stator, support, displacement transducer, computer control system and band position detecting device, described stator is rack-mount, along the circumferential direction uniform a plurality of electromagnet in its two ends and displacement transducer, two annular ferromagnets are installed in the position of the corresponding electromagnet of described urceolus rotor inboard, described computer control system connects the band position detecting device, displacement transducer and electromagnet, described deviation-rectifying system also comprises the unloading bearing, the unloading bearing has the aligning function, the unloading bearing inner race is installed on the stator, be positioned at the centre of two groups of electromagnet, the unloading bearing outer ring cooperates installation with the urceolus rotor.
Described unloading bearing is the gravity of urceolus rotor and the band radial component sum to correction roller acting force to the anchorage force of urceolus rotor.
Described unloading bearing is magnetic bearing or mechanical self-aligning bearing.
The ferromagnetic axial centre distance L of described two annulars is greater than 1/2 of urceolus rotor length.
The ferromagnetic inside diameter D of described urceolus rotor interior annular
nThe difference of the face of cylinder diameter d that constitutes with the outline that is installed in the electromagnet that the stator two ends are uniformly distributed along the circumference depends on two ends ferromagnetic axial distance L of annular and urceolus rotor maximum deflection angle α
Max
Each electromagnet is furnished with one or one group of displacement transducer.
The moment decoupling zero that the utility model causes by suffered static load power of the roller of will rectifying a deviation and sideslip, static load power is born by the unloading bearing, electromagnet only is responsible for correction, reduce the power demand and the thermal value of electromagnetic assembly, can give full play to the fast advantage of Electromagnetic Drive response speed, realized correction fast, and device context takes up room little, Installation and Debugging are convenient, simultaneously because the inorganic tool wearing and tearing of this body structure of correction roller can be saved Maintenance and Repair expense and time in a large number; And the native system cost is not higher than existing electro-hydraulic servo correcting device, can be used for the existing equipment transformation fully and substitute traditional electro-hydraulic servo deviation correcting technology in new production line construction; Can adapt to the rhythm of cold rolled sheet production serialization high-speed production and user to the product surface quality requirement, have broad application prospects at cold continuous rolling, continuous annealing and field such as zinc-plated.
Description of drawings
Fig. 1 is the utility model unload-type electromagnetic rectification system architecture synoptic diagram;
Fig. 2 be among Fig. 1 A-A to cross-sectional schematic;
Fig. 3 is the centering capacity analysis chart;
Fig. 4 is two kinds of correction mode synoptic diagram; Wherein: Fig. 4 (a) is vertical correction, and Fig. 4 (b) is the level correction;
Fig. 5 is the system architecture schematic diagram;
Fig. 6 is embodiment 2 structure diagrams.
Among the figure: 1 urceolus rotor, 2 annular ferromagnets, 3 unloading bearings, 4 electromagnet, 5 stators, 6 supports, 7 displacement transducers, 8 computer control systems, 9 band position detecting devices, 10 bands.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model statement, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in Figure 1, 2, a kind of unload-type electromagnetic rectification system, comprise urceolus rotor 1, annular ferromagnet 2, unloading bearing 3, electromagnet 4, stator 5, support 6, displacement transducer 7, computer control system 8 and band position detecting device 9, described stator 5 is installed on the support 6, along the circumferential direction uniform a plurality of electromagnet 4 in its two ends and displacement transducer 7, each electromagnet 4 is furnished with one or one group of displacement transducer 7; Two annular ferromagnets 2 are installed in the position of the corresponding electromagnet 4 of described urceolus rotor inboard, and the axial centre distance L of described two annular ferromagnets 2 is more preferably greater than 1/2 of urceolus rotor 1 length; Described computer control system 8 connects band position detecting device 9, displacement transducer 7 and electromagnet 4, described unloading bearing 3 has the aligning function for magnetic bearing, its inner ring is installed on the stator 5, be positioned at the centre of two groups of electromagnet 4, the outer ring cooperates installation with urceolus rotor 1, bear the gravity of urceolus rotor 1 and the radial component of 10 pairs of corrections of band roller acting force, guarantee that simultaneously the urceolus rotor 1 and the axis of stator 5 can freely rotate in the certain angle scope.
When rectifying a deviation work, band position detecting device 9 detects band 10 position signallings in real time, through computer control system 8 acquisition process, and with predefined band 10 positional values relatively, according to the correction controlling models, set the correction position; Displacement transducer 7 detects the gap between electromagnet 4 and the urceolus rotor 1 in real time and controls by computer control system 8, by changing the size of electromagnet 4 electric currents, change the gap of urceolus rotor 1 and stator 5, thereby make urceolus rotor 1 arrive preposition, reach the purpose that prevents band 10 sideslips in spatial deflection.
As shown in Figure 3, the axial distance L of urceolus rotor 1 two ends annular ferromagnet 2, the inside diameter D of annular ferromagnet 2
nAnd the size of the outline circle diameter d of electromagnet 4 has directly determined the maximum deflection angle α of urceolus rotor 1 on the stator 5
Max, i.e. the maximum centering capacity of native system.Its geometric relationship each other is:
In the formula, α
Max: correction roller rotor maximum deflection angle;
D
n: annular ferromagnetic internal diameter;
D: electromagnet outline circle diameter;
L: the ferromagnetic axial distance of two ends annular.
As shown in Figure 4, a kind of unload-type electromagnetic rectification system has controllability in the space, and the electromagnetic force that electromagnet 4 produces on the stator 5 only need produce correction moment and control the attitude of urceolus rotor 1 and prevent band 10 sideslips; The radial component of 10 pairs of urceolus rotor 1 acting forces of the gravity of urceolus rotor 1 and band is born by unloading bearing 3.We are decoupled into two kinds of situations of Fig. 4 (a) and (b) at the control of roller in the space of will rectifying a deviation, and electromagnetic force can be regarded the stack of these two kinds of situations as to the control of urceolus rotor 1.The travelling speed of band 10 is v among the figure, and solid line is urceolus rotor 1 deflection angle situation when being 0 °, and this moment, urceolus rotor 1 and stator 5 were on same axis; The position of urceolus rotor 1 after dotted line is represented to rectify a deviation.(a) be the situation of vertically rectifying a deviation, when band 10 sideslips, the axis of urceolus rotor 1 axially produces deflection with respect to stator 5 in vertical plane, and does not rotate in the horizontal direction, this situation rectifying effect is obvious, and the correction electromagnetic force and the moment that require electromagnet 4 to produce simultaneously are relatively big; (b) be level correction situation, the axis of urceolus rotor 1 produces deflection with respect to stator 5 axis in surface level, and do not rotate in vertical direction, this is a kind of correction mode that roller generally adopts of rectifying a deviation at present, the electromagnetic force that requires electromagnet 4 to produce is relative with moment less.
As shown in Figure 5, be computer control system 8 in the frame of broken lines.Unload-type electromagnetic rectification system makes urceolus rotor 1 that beat take place by the electromagnetic torque between control electromagnet 4 and the annular ferromagnet 2, thereby reaches the purpose that prevents band 10 sideslips fast under the effect of computer control system 8.Band position detecting device 9 detects the position signallings of bands 10 in real time, gathers through computer control system 8 and calculates, and compares with the set positions signal of band 10, obtains band 10 running deviation values.Computer control system 8 is determined the position setting value of correction roller by specific controlling models according to band 10 running deviation values, displacement transducer 7 detects the position signalling of urceolus rotor 1 in real time, and its collection is sent to computer control system 8 calculates, it and correction roll position setting value are compared, simultaneous computer control system 8 is translated into control command according to specific adjusting model, electric current by power amplifier regulating magnet 4, thereby change the driving moment of correction roller, make urceolus rotor 1 stable, realize correction at the deflection angle of setting.Big close loop negative feedback control system of whole electromagnetic rectification system's formation.
Corresponding width is 300mm, and thickness is the band steel of 0.2mm, and band steel mean tension is 2kg/mm
2, the urceolus rotor diameter of design is 350mm, the inboard and stator electromagnet circumference outline diameter difference D of annular ferromagnet
n-d=13mm, the ferromagnetic axial distance L=270mm of two ends annular, maximum centering capacity α
MaxFor:
The centering capacity that shows this correction roller is-2.76 °～+ 2.76 °, and this respect is suitable with existing electro-hydraulic servo centering capacity.But, native system can the implementation space correction and electromagnetic response speed fast than electrohydraulic servo system, this centering capacity should be stronger than electrohydraulic servo system centering capacity.
As shown in Figure 6, a kind of unload-type electromagnetic rectification system, the difference of embodiment 2 and embodiment 1 is that described unloading bearing 3 is mechanical self-aligning bearing, selects general self-aligning ball bearing for use, it is 3 ° that aligning allows angle excursion, satisfies the angle requirement in the electromagnetic rectification limit of power fully.Suppose that window of web velocities v is 1000m/min, correction roller rotor diameter is 500mm, and then the rotating speed of rotor is:
This rotating speed satisfies actual request for utilization fully far below the limit speed of self-aligning ball bearing.
Claims (6)
1. unload-type electromagnetic rectification system, comprise urceolus rotor (1), annular ferromagnet (2), electromagnet (4), stator (5), support (6), displacement transducer (7), computer control system (8) and band position detecting device (9), described stator (5) is installed on the support (6), along the circumferential direction uniform a plurality of electromagnet in its two ends (4) and displacement transducer (7), two annular ferromagnets (2) are installed in the position of the corresponding electromagnet (4) of described urceolus rotor inboard, described computer control system (8) connects band position detecting device (9), displacement transducer (7) and electromagnet (4), it is characterized in that: described deviation-rectifying system also comprises unloading bearing (3), unloading bearing (3) has the aligning function, unloading bearing (3) inner ring is installed on the stator (5), be positioned at the centre of two groups of electromagnet (4), unloading bearing (3) outer ring cooperates installation with urceolus rotor (1).
2. unload-type electromagnetic rectification as claimed in claim 1 system is characterized in that: described unloading bearing (3) is the gravity of urceolus rotor (1) and band (10) the radial component sum to correction roller acting force to the anchorage force of urceolus rotor (1).
3. unload-type electromagnetic rectification as claimed in claim 1 or 2 system, it is characterized in that: described unloading bearing (3) is magnetic bearing or mechanical self-aligning bearing.
4. unload-type electromagnetic rectification as claimed in claim 1 or 2 system, it is characterized in that: the axial centre distance L of described two annular ferromagnets (2) is greater than 1/2 of urceolus rotor (1) length.
5. unload-type electromagnetic rectification as claimed in claim 1 or 2 system is characterized in that: the inside diameter D of described urceolus rotor (1) interior annular ferromagnet (2)
nThe difference of the face of cylinder diameter d that constitutes with the outline that is installed in the electromagnet (4) that stator (5) two ends are uniformly distributed along the circumference depends on the axial distance L and urceolus rotor (1) the maximum deflection angle α of two ends annular ferromagnets (2)
Max
6. unload-type electromagnetic rectification as claimed in claim 1 or 2 system, it is characterized in that: each electromagnet (4) is furnished with one or one group of displacement transducer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200761187U CN201425717Y (en) | 2009-06-11 | 2009-06-11 | Discharge type electromagnetic deviation correcting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200761187U CN201425717Y (en) | 2009-06-11 | 2009-06-11 | Discharge type electromagnetic deviation correcting system |
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| Publication Number | Publication Date |
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| CN201425717Y true CN201425717Y (en) | 2010-03-17 |
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ID=42025172
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009200761187U Expired - Fee Related CN201425717Y (en) | 2009-06-11 | 2009-06-11 | Discharge type electromagnetic deviation correcting system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844705A (en) * | 2010-05-06 | 2010-09-29 | 哈尔滨博实自动化设备有限责任公司 | Spherical bracetype electromagnetic rectifying roller |
| CN107866448A (en) * | 2017-11-01 | 2018-04-03 | 中色科技股份有限公司 | A kind of centering control system |
| CN108438809A (en) * | 2018-05-30 | 2018-08-24 | 武汉理工大学 | Low energy consumption self-picketing bias tyre magnetic supporting ribbon conveyer |
| CN110962197A (en) * | 2019-12-03 | 2020-04-07 | 潘昭 | Board shaping device for strip-shaped board bending process flow in wood processing |
| CN111346993A (en) * | 2020-04-17 | 2020-06-30 | 杭州旗芳实业有限公司 | But equidistant and changeable for reinforcing bar feed arrangement of length |
-
2009
- 2009-06-11 CN CN2009200761187U patent/CN201425717Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844705A (en) * | 2010-05-06 | 2010-09-29 | 哈尔滨博实自动化设备有限责任公司 | Spherical bracetype electromagnetic rectifying roller |
| CN107866448A (en) * | 2017-11-01 | 2018-04-03 | 中色科技股份有限公司 | A kind of centering control system |
| CN107866448B (en) * | 2017-11-01 | 2023-08-18 | 中色科技股份有限公司 | Centering control system |
| CN108438809A (en) * | 2018-05-30 | 2018-08-24 | 武汉理工大学 | Low energy consumption self-picketing bias tyre magnetic supporting ribbon conveyer |
| CN108438809B (en) * | 2018-05-30 | 2019-11-26 | 武汉理工大学 | Low energy consumption self-picketing bias tyre magnetic supporting belt conveyor |
| CN110962197A (en) * | 2019-12-03 | 2020-04-07 | 潘昭 | Board shaping device for strip-shaped board bending process flow in wood processing |
| CN111346993A (en) * | 2020-04-17 | 2020-06-30 | 杭州旗芳实业有限公司 | But equidistant and changeable for reinforcing bar feed arrangement of length |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20100317 Termination date: 20160611 |