CN114570777A - Sectional magnetic suspension type plate shape measuring roller - Google Patents
Sectional magnetic suspension type plate shape measuring roller Download PDFInfo
- Publication number
- CN114570777A CN114570777A CN202210205415.7A CN202210205415A CN114570777A CN 114570777 A CN114570777 A CN 114570777A CN 202210205415 A CN202210205415 A CN 202210205415A CN 114570777 A CN114570777 A CN 114570777A
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- Prior art keywords
- roller
- measuring
- core
- ring
- plate shape
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- 239000000725 suspension Substances 0.000 title claims abstract description 22
- 238000012545 processing Methods 0.000 claims description 15
- 230000005284 excitation Effects 0.000 claims description 14
- 238000005339 levitation Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 230000011218 segmentation Effects 0.000 claims 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention belongs to the technical field of automatic measuring and testing instruments, and particularly relates to a sectional magnetic suspension type plate shape measuring roller. The provided sectional magnetic suspension type plate shape measuring roller is provided with a hollow mandrel which is fixedly arranged; two ends of the hollow core shaft are respectively supported on the supporting seat; the sectional magnetic suspension type plate shape measuring roller is also provided with a measuring ring which is arranged in a sectional manner; a roller core sleeved on the hollow mandrel is arranged in each measuring ring; a plurality of electromagnets sleeved with magnet exciting coils are arranged in the roller core; the plurality of electromagnets support the corresponding measuring ring outside the roller core in a magnetic suspension manner; gaps are reserved between the roller cores and the corresponding measuring rings; the measuring ring rotates along with the strip, and the gap between the measuring ring and the roller core is measured in real time through a position sensor arranged in the gap between the roller core and the measuring ring. The surface of the measuring roller is a sectional type measuring roller ring, so that the measuring roller is small in rotational inertia and friction force, can flexibly move along with a strip, and avoids the strip from being scratched by the roller ring.
Description
Technical Field
The invention belongs to the technical field of automatic measuring and testing instruments, and particularly relates to a sectional magnetic suspension type plate shape measuring roller which is used for measuring the plate shape flatness of metal or non-metal strip-shaped materials and is suitable for on-line measuring and controlling the plate shape flatness of the rolling industry production of extremely-thin metal strips.
Background
The shape of the strip is an important index for measuring the quality of the metal strip, so that an online shape control system is an important means for improving the quality of the strip, the strip needs to be subjected to closed-loop control in order to achieve an ideal strip shape index, the strip shape measuring roll is a key device for online measurement of the strip shape, and related companies and research and development mechanisms in various countries have invested a lot of efforts for research and development and production application for improving the strip shape measurement and control level, wherein representative strip shape measuring rolls comprise a piezomagnetic measuring roll invented by ABB in 60 s, a solid seamless measuring roll invented by BFI in 2005 and an air bearing type strip measuring roll invented by DAVY in 60 s; the plate shape measuring rollers can meet the plate shape measuring precision requirement under specific working conditions, and the production quality of metal strips is improved.
The invention discloses a sectional type piezomagnetic plate shape measuring roller (patent number US 3841194) developed by ABB company, two plate shape measuring rollers (patent numbers EP1048370A2 and CN 1308095C) developed by BFI company, patents CN103302112B and CN101694368B and the like, which are solid rollers, have large rotational inertia and need to be driven by a motor, the machining difficulty of the plate shape measuring rollers is large, and the sensors cannot be in direct contact with a strip material, so that the measuring sensitivity is low, and the effect is not ideal when the rollers are used for measuring the extremely thin strip material.
Patent CN 101264485B proposes a non-contact magnetic suspension measuring system, which has a completely different principle from the present invention, and is greatly affected by the magnetic permeability of the strip, and can not measure non-magnetic conductive materials such as aluminum, copper, stainless steel, etc.
The invention relates to an air bearing plate shape measuring roller invented by DAVY company, which adopts compressed air to suspend a segmented air bearing on a mandrel and determines the distribution of transverse force by measuring pressure difference.
Disclosure of Invention
The invention aims to provide a sectional magnetic suspension type plate shape measuring roller which has the characteristics of low requirements on processing and manufacturing precision, easiness in installation and low cost.
The invention adopts the following technical scheme for achieving the purpose:
a sectional magnetic suspension type plate shape measuring roller is provided with a hollow core shaft which is fixedly arranged; two ends of the hollow core shaft are respectively supported on the supporting seat; the sectional magnetic suspension type plate shape measuring roller is also provided with a measuring ring which is arranged in a sectional manner; each section of the measuring ring is internally provided with a roller core sleeved on the hollow mandrel; the roller core is tightly matched with the hollow core shaft; a plurality of electromagnets sleeved with magnet exciting coils are arranged in the roller core; the roll core provided with a plurality of electromagnets forms an electromagnet roll core; each electromagnet is electrically connected with an excitation driving device and a signal processing device; the plurality of electromagnets support the corresponding measuring ring outside the roller core in a magnetic suspension manner; gaps are reserved between the roll cores and the corresponding measuring rings; the measuring ring rotates along with the strip, the gap between the measuring ring and the roll core is measured in real time through a position sensor arranged in the gap between the roll core and the measuring ring, the exciting current of the magnet is dynamically adjusted to enable the gap between the measuring ring and the roll core to be kept uniform and constant, and the pressure of the strip on the measuring ring is transmitted to the force sensor to accurately measure the stress distribution of the strip.
The number of the electromagnets in each roller core is even and at least four electromagnets are uniformly distributed along the circumference.
A force sensor is arranged in the center of each roll core; the force sensor is electrically connected with the excitation driving device and the signal processing device.
The central cavity of the hollow mandrel forms an accommodating cavity for a drive lead of the excitation coil and a lead of the position sensor.
The excitation driving device and the signal processing device are arranged on the outer side of the hollow mandrel.
The sectional magnetic suspension type plate shape measuring roller provided by the invention is placed by adopting the technology, the magnetic suspension roller core and the measuring ring can be manufactured without special processing equipment, the processing precision requirement is low, the processing technology is simple, and the manufacturing cost is low; the magnetic suspension measuring ring has the advantages of small rotational inertia, small friction force, flexible movement along with a strip, avoidance of scratches caused by relative movement of the measuring ring and the strip, flexible adjustment of magnetic suspension force through adjustment of exciting current of an electromagnet, suitability for measuring the plate shape in a large tension range, low requirement on processing and manufacturing precision, easiness in installation and low cost.
The core shaft is hollow, so that the electromagnet driving cable and the sensor cable are conveniently connected to an external driving and signal conditioning device.
Drawings
FIG. 1 is a schematic diagram of a plate shape measurement.
Fig. 2 is a front view of the structure of the present invention.
FIG. 3 is a cross-sectional view of a roll core of the present invention.
In the figure: 1. the device comprises a measuring ring, 2, a roller core, 3, an excitation coil, 4, a force sensor, 5, a position sensor, 6, a gap, 7, a lead, 8 and a hollow core shaft; 9. a measurement signal processing device; 10. an excitation drive device; 11. a supporting base; 12. Electromagnet, 13, strip shape measuring roll, 14, strip.
Detailed Description
The invention is described in detail in connection with the accompanying drawings and the detailed description of the invention, which are prior art.
As shown in fig. 2 and referring to fig. 3, a sectional magnetic levitation type sheet shape measuring roller has a hollow mandrel 8 fixedly disposed; two ends of the hollow core shaft 8 are respectively supported on the supporting seat 11; the sectional magnetic suspension type plate shape measuring roller is also provided with a measuring ring 1 which is arranged in a sectional manner; the measuring ring is a soft magnetic alloy ring, and the outer layer of the measuring ring is plated with a high-hardness wear-resistant material; the measuring ring 1 is a plurality of sections which are arranged in a sectional manner; the embodiment is five sections; each section of the measuring ring is internally provided with a roller core 2 sleeved on the hollow mandrel 8; the roller core 2 is in clearance fit with the hollow mandrel 8; a plurality of electromagnets 12 sleeved with magnet exciting coils are arranged in the roller core 2; in the embodiment, four electromagnets are uniformly distributed in each roller core along the circumference; the roll core provided with a plurality of electromagnets 12 forms an electromagnet roll core; each electromagnet 12 is electrically connected with an excitation driving device 10 and a signal processing device 9 which are arranged outside the hollow mandrel; the excitation driving device 10 and the signal processing device 9 both adopt the well-known technology in the prior art, and are not described herein too much; a plurality of electromagnets 12 support the corresponding measuring ring outside the roller core in a magnetic suspension manner; a gap 6 is arranged between the roller core 2 and the corresponding measuring ring 1; the measuring ring rotates along with the strip, the gap between the measuring ring and the roller core is measured in real time through a position sensor 5 arranged in the gap between the roller core 2 and the measuring ring 1, the exciting current of the magnet is dynamically adjusted to keep the gap between the measuring ring and the roller core uniform and constant, and the pressure of the strip on the measuring ring is transmitted to the force sensor to accurately measure the stress distribution of the strip.
A force sensor 4 is arranged in the center of each roll core; the force sensor is electrically connected with the excitation driving device and the signal processing device.
The central cavity of the hollow mandrel forms an accommodating cavity for a drive lead of the excitation coil and a lead of the position sensor.
Claims (5)
1. The utility model provides a segmentation magnetic suspension type plate shape measuring roller which characterized in that: the sectional magnetic suspension type plate shape measuring roller is provided with a hollow mandrel which is fixedly arranged; two ends of the hollow core shaft are respectively supported on the supporting seat; the sectional magnetic suspension type plate shape measuring roller is also provided with a measuring ring which is arranged in a sectional manner; each section of the measuring ring is internally provided with a roller core sleeved on the hollow mandrel; the roller core is tightly matched with the hollow core shaft; a plurality of electromagnets sleeved with magnet exciting coils are arranged in the roller core; the roll core provided with a plurality of electromagnets forms an electromagnet roll core; each electromagnet is electrically connected with an excitation driving device and a signal processing device; the plurality of electromagnets support the corresponding measuring ring outside the roller core in a magnetic suspension manner; gaps are reserved between the roll cores and the corresponding measuring rings; the measuring ring rotates along with the strip, the gap between the measuring ring and the roll core is measured in real time through a position sensor arranged in the gap between the roll core and the measuring ring, the exciting current of the magnet is dynamically adjusted to enable the gap between the measuring ring and the roll core to be kept uniform and constant, and the pressure of the strip on the measuring ring is transmitted to the force sensor to accurately measure the stress distribution of the strip.
2. The sectional magnetic levitation type sheet shape measuring roller according to claim 1, wherein: the number of the electromagnets in each roller core is even and at least four electromagnets are uniformly distributed along the circumference.
3. The sectional magnetic levitation type sheet shape measuring roller according to claim 1, wherein: a force sensor is arranged in the center of each roll core; the force sensor is electrically connected with the excitation driving device and the signal processing device.
4. The sectional magnetic levitation type sheet shape measuring roller according to claim 1, wherein: the central cavity of the hollow mandrel forms an accommodating cavity for a drive lead of the excitation coil and a lead of the position sensor.
5. The utility model provides a segmentation magnetic levitation formula plate shape measuring roller which characterized in that: the excitation driving device and the signal processing device are arranged on the outer side of the hollow mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210205415.7A CN114570777A (en) | 2022-03-04 | 2022-03-04 | Sectional magnetic suspension type plate shape measuring roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210205415.7A CN114570777A (en) | 2022-03-04 | 2022-03-04 | Sectional magnetic suspension type plate shape measuring roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114570777A true CN114570777A (en) | 2022-06-03 |
Family
ID=81776440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210205415.7A Pending CN114570777A (en) | 2022-03-04 | 2022-03-04 | Sectional magnetic suspension type plate shape measuring roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114570777A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4478062A (en) * | 1982-09-01 | 1984-10-23 | E. W. Bliss Company, Inc. | Strip shape measuring roll |
| US4561313A (en) * | 1983-11-18 | 1985-12-31 | Societe Europeenne De Propulsion | Device for measuring the longitudinal tension in a strip of material |
| US4774424A (en) * | 1985-02-15 | 1988-09-27 | Societe Europeenne De Propulsion | Device for measuring the induction in the air gap of a magnetic bearing |
| JPH07306004A (en) * | 1994-05-11 | 1995-11-21 | Ntn Corp | Shape measurement roller |
| CN2284109Y (en) * | 1995-06-14 | 1998-06-17 | 东北重型机械学院 | Magnetic bullet transformer type cold-rolled strip material measuring meter |
| EP1048370A2 (en) * | 1999-04-26 | 2000-11-02 | BFI VDEh- Institut für angewandte Forschung GmbH | Measuring roll for determining flatness deviations |
| KR20040088779A (en) * | 2003-04-11 | 2004-10-20 | 주식회사 포스코 | Device for detecting the roll gap for quick open control of strip end |
| CN1931460A (en) * | 2006-09-29 | 2007-03-21 | 燕山大学 | Split plate profile instrument with piezomagnetic internal pores |
| CN1308095C (en) * | 2002-01-22 | 2007-04-04 | Bfivdeh-应用研究院有限公司 | Roller for determining variations in flatness |
| CN100402168C (en) * | 2005-09-13 | 2008-07-16 | 王宇 | Tension plate shape testing instrument |
| CN101264485B (en) * | 2007-03-16 | 2010-06-23 | 宝山钢铁股份有限公司 | Magnetic suspension type dynamic sheet shape testing method |
| CN101497084B (en) * | 2009-02-13 | 2011-05-04 | 燕山大学 | Piezoelectric shape meter for detecting flatness of cold and thermal state strip material |
| CN103230946A (en) * | 2013-04-28 | 2013-08-07 | 北京北科麦思科自动化工程技术有限公司 | Detecting roller, contact type shape meter and detection system |
| CN203245190U (en) * | 2013-05-15 | 2013-10-23 | 北京北科麦思科自动化工程技术有限公司 | Direct-piezoresistance non-slip-ring segmented contact-type plate shape gauge |
| CN101985134B (en) * | 2010-11-04 | 2014-01-01 | 中色科技股份有限公司 | Contact-type plate-shaped measuring apparatus |
-
2022
- 2022-03-04 CN CN202210205415.7A patent/CN114570777A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4478062A (en) * | 1982-09-01 | 1984-10-23 | E. W. Bliss Company, Inc. | Strip shape measuring roll |
| US4561313A (en) * | 1983-11-18 | 1985-12-31 | Societe Europeenne De Propulsion | Device for measuring the longitudinal tension in a strip of material |
| US4774424A (en) * | 1985-02-15 | 1988-09-27 | Societe Europeenne De Propulsion | Device for measuring the induction in the air gap of a magnetic bearing |
| JPH07306004A (en) * | 1994-05-11 | 1995-11-21 | Ntn Corp | Shape measurement roller |
| CN2284109Y (en) * | 1995-06-14 | 1998-06-17 | 东北重型机械学院 | Magnetic bullet transformer type cold-rolled strip material measuring meter |
| EP1048370A2 (en) * | 1999-04-26 | 2000-11-02 | BFI VDEh- Institut für angewandte Forschung GmbH | Measuring roll for determining flatness deviations |
| CN1308095C (en) * | 2002-01-22 | 2007-04-04 | Bfivdeh-应用研究院有限公司 | Roller for determining variations in flatness |
| KR20040088779A (en) * | 2003-04-11 | 2004-10-20 | 주식회사 포스코 | Device for detecting the roll gap for quick open control of strip end |
| CN100402168C (en) * | 2005-09-13 | 2008-07-16 | 王宇 | Tension plate shape testing instrument |
| CN1931460A (en) * | 2006-09-29 | 2007-03-21 | 燕山大学 | Split plate profile instrument with piezomagnetic internal pores |
| CN100421826C (en) * | 2006-09-29 | 2008-10-01 | 燕山大学 | Split plate profile instrument with piezomagnetic internal pores |
| CN101264485B (en) * | 2007-03-16 | 2010-06-23 | 宝山钢铁股份有限公司 | Magnetic suspension type dynamic sheet shape testing method |
| CN101497084B (en) * | 2009-02-13 | 2011-05-04 | 燕山大学 | Piezoelectric shape meter for detecting flatness of cold and thermal state strip material |
| CN101985134B (en) * | 2010-11-04 | 2014-01-01 | 中色科技股份有限公司 | Contact-type plate-shaped measuring apparatus |
| CN103230946A (en) * | 2013-04-28 | 2013-08-07 | 北京北科麦思科自动化工程技术有限公司 | Detecting roller, contact type shape meter and detection system |
| CN103230946B (en) * | 2013-04-28 | 2015-12-16 | 北京北科麦思科自动化工程技术有限公司 | Measuring roll, contact plate profile instrument and detection system |
| CN203245190U (en) * | 2013-05-15 | 2013-10-23 | 北京北科麦思科自动化工程技术有限公司 | Direct-piezoresistance non-slip-ring segmented contact-type plate shape gauge |
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Application publication date: 20220603 |
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| WD01 | Invention patent application deemed withdrawn after publication |