CN105004785A - Steel pipe eddy-current inspector - Google Patents
Steel pipe eddy-current inspector Download PDFInfo
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- CN105004785A CN105004785A CN201410176029.5A CN201410176029A CN105004785A CN 105004785 A CN105004785 A CN 105004785A CN 201410176029 A CN201410176029 A CN 201410176029A CN 105004785 A CN105004785 A CN 105004785A
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- worm
- worm gear
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- steel pipe
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Abstract
A steel pipe eddy-current inspector comprises a feeding device, a feeding roller, an electric pinch roller device, a three-wheel centering device, a magnetic saturation device, a three-wheel centering device, an electric pinch roller device, a DC demagnetization device, an AC demagnetization device and a blanking device. The inspector is characterized in that the feeding device is successively connected with the feeding roller, the electric pinch roller device, the three-wheel centering device, the magnetic saturation device, the three-wheel centering device, the electric pinch roller device, the DC demagnetization device, the AC demagnetization device and the blanking device. The surface of each of three rollers is tangent to a same circle with a through hole as the center. The magnetic saturation device contains a coil, a guide sleeve, a probe and a medium steel jacket. When the coil is powered on, a magnetic field is formed, and a steel pipe undergoes saturation magnetization when passing through the magnetic field. The inspector meets inspection and magnetization requirements of steel pipes with different specifications. By the adoption of the through-type detection coil, internal and external surfaces or near surface defects of a steel pipe can be effectively detected.
Description
Technical field
The present invention relates to a kind of equipment utilizing eddy current to detect steel pipe manufacturing defect, especially relate to a kind of Eddy Current Equipment for Steel Tubes, for pipe mill's examination steel tube quality.
Background technology
In the manufacture process of steel pipe, due to problems such as the slag inclusion in raw material or material are loose, to crack after steel pipe forming, the defect such as trachoma, for guaranteeing the quality of tube product, reduce the potential safety hazard in using, need to detect steel pipe with eddy current inspection equipment.In order to ensure the accuracy detected, need accurately to feel relieved location to the steel pipe of straight ahead, simultaneously because same Eddy Current Equipment for Steel Tubes needs the steel tube flaw detection of applicable different tube diameters, therefore need a kind of can accurately can Fast transforms centering the centring means of diameter for steel pipe centering.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of Eddy Current Equipment for Steel Tubes is provided, for Steel Pipe Eddy Detection, equipment adopts through mode magnetic test coil, can effectively detect steel pipe surfaces externally and internally or near surface flaw (comprises aughty, pit, trachoma, the defects such as transverse crack), the adjustable three-wheel centring means provided, the steel pipe of straight ahead is accurately felt relieved location, effectively ensure that steel pipe enters detection main frame reposefully, ensure the accuracy of detection, simultaneously can Fast transforms centering diameter, increase work efficiency, eddy current main frame adopts Motorized lift device, replacing specification is very convenient.
Technical scheme of the present invention is: a kind of Eddy Current Equipment for Steel Tubes, comprises feeding device, charging roller, electronic pressing wheel device, three-wheel centring means, magnetic saturation device, three-wheel centring means, electronic pressing wheel device, direct current demagnetization device, AC demagnetization device, blanking device, is characterized in that: described feeding device is linked in sequence charging roller, electronic pressing wheel device, three-wheel centring means, magnetic saturation device, three-wheel centring means, electronic pressing wheel device, direct current demagnetization device, AC demagnetization device, blanking device, described three-wheel centring means, comprise substrate, described substrate is provided with girth sheets in worm gear, in substrate and worm gear, girth sheets is bolted to connection, in worm gear, the central authorities of girth sheets are provided with the through hole passed for tested steel pipe, in worm gear, girth sheets is provided with three roller mount rotary pin shafts, three roller mount rotary pin shafts to be evenly arranged in worm gear on girth sheets centered by described through hole, in worm gear, girth sheets outer ring is worm gear, worm gear is rotatable, worm gear is provided with three worm gear bearing pins, described worm gear bearing pin is evenly arranged on described worm gear centered by described through hole, three roller mount to be installed in rotation in described worm gear on girth sheets by three roller mount rotary pin shafts respectively, roller is arranged on the front end of described roller mount respectively by roller shaft, the rear end of roller mount is provided with chute, and the surface of three rollers is tangent with the same circle centered by through hole, the side of described worm gear is provided with regulating device, the worm and wheel of regulating device connects, three described rollers are made synchronously to depart from the center of described through hole by the rotation of worm and wheel, described regulating device comprises worm screw, worm seat, described worm seat is bolted to connection on the substrate, and described worm screw is through described worm seat, the upper end of worm screw is provided with handle, bearing sleeve is contained in described worm seat, and pair of bearings is arranged in described bearing seat, and described magnetic saturation device comprises coil, guide pin bushing, probe, middle steel bushing, when the coil is energized, forms magnetic field, is saturated magnetization, meets steel tube flaw detection magnetized requirement when steel pipe passes.
Further:
Described magnetic saturation device is provided with jacking gear, described jacking gear comprises the compositions such as inner sleeve, outer sleeve, worm and gear elevating mechanism, handwheel, reductor, when steel pipe specification difference of detecting a flaw causes center High variation, the lifting of magnetizing assembly is regulated by reductor, reach preset diameters height, the lifting of handwheel to magnetizing assembly plays fine setting effect, and jacking gear adopts worm gear structure.
The invention has the beneficial effects as follows: one disclosed by the invention is used for Eddy Current Equipment for Steel Tubes, adopt through mode magnetic test coil, can effectively detect steel pipe surfaces externally and internally or near surface flaw (comprises aughty, pit, trachoma, the defects such as transverse crack), the adjustable three-wheel centring means provided, the steel pipe of straight ahead is accurately felt relieved location, effectively ensure that steel pipe enters detection main frame reposefully, ensure the accuracy of detection, simultaneously can Fast transforms centering diameter, increase work efficiency, eddy current main frame adopts Motorized lift device, replacing specification is very convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the vertical view after Fig. 1 removes feeding device, charging roller, blanking device.
Fig. 3 is the structural representation of three-wheel centring means.
Fig. 4 is the B-B place cut-open view after Fig. 3 removes Worm adjusting regulating device.
Fig. 5 is the C-C place cut-open view of magnetic saturation device.
Fig. 6 is the D-D place cut-open view of magnetic saturation device.
Fig. 7 is the structural representation of jacking gear.
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, in Fig. 7, 1. feeding device, 2. charging roller, 3. electronic pressing wheel device, 4. magnetic saturation device, 5. direct current demagnetization assembly axis, 6. AC demagnetization device, 7. blanking device, 8. jacking gear, 9. three-wheel centring means, 10. steel pipe, 401. guide pin bushing, 402. coil, 403. probe, steel bushing in 404., 801. inner sleeve, 802. outer sleeve, 803. worm and gear elevating mechanisms, 804. handwheel, 805. reductor, 901. handle, 902. worm screw, 903. worm gear, 904. roller, 905. roller shaft, 906. roller mount, 907. substrate, 908. chute, 909. worm gear bearing pins, 910. bearing, 911. bearing seat, 912. worm seat, 913. bolt, 914. through hole, 915. roller mount rotary pin shafts, girth sheets in 916. worm gears.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Fig. 6, the present invention is a kind of Eddy Current Equipment for Steel Tubes, comprises feeding device 1, charging roller 2, electronic pressing wheel device 3, three-wheel centring means 9, magnetic saturation device 4, three-wheel centring means 9, electronic pressing wheel device 3, direct current demagnetization device 5, AC demagnetization device 6, blanking device 7, is characterized in that: described feeding device 1 is linked in sequence charging roller 2, electronic pressing wheel device 3, three-wheel centring means 9, magnetic saturation device 4, three-wheel centring means 9, electronic pressing wheel device 3, direct current demagnetization device 5, AC demagnetization device 6, blanking device 7, described three-wheel centring means 9, comprise substrate 907, described substrate 907 is provided with girth sheets 916 in worm gear, substrate 907 is bolted to connection with girth sheets 916 in worm gear, in worm gear, the central authorities of girth sheets 916 are provided with the through hole 914 passed for tested steel pipe, in worm gear, girth sheets 916 is provided with three roller mount rotary pin shafts 915, three roller mount rotary pin shafts 915 to be evenly arranged in worm gear on girth sheets 916 centered by described through hole 914, in worm gear, girth sheets 916 outer ring is worm gear 903, worm gear 903 is rotatable, worm gear 903 is provided with three worm gear bearing pins 909, described worm gear bearing pin 909 is evenly arranged on described worm gear 903 centered by described through hole 914, three roller mount 906 to be installed in rotation in described worm gear on girth sheets 916 by three roller mount rotary pin shafts 915 respectively, roller 904 is arranged on the front end of described roller mount 906 respectively by roller shaft 905, the rear end of roller mount 906 is provided with chute 908, and the surface of three rollers 904 is tangent with the same circle centered by through hole 914, the side of described worm gear 903 is provided with regulating device, the worm screw 902 of regulating device is connected with worm gear 903, three described rollers 904 are made synchronously to depart from the center of described through hole 914 by worm screw 902 and the rotation of worm gear 903, that is, no matter three rollers 904 are how many from the distance at the center of through hole 914, three rollers 904 are tangent with the same circle centered by through hole 914 all the time, regulating device comprises worm screw 902, worm seat 912, described worm seat 912 is fixedly connected on described substrate 907 by bolt 913, and described worm screw 902 is through described worm seat 912, and the upper end of worm screw 902 is provided with handle 901, bearing seat 911 is sleeved in described worm seat 912, and pair of bearings 910 is arranged in described bearing seat 911, described magnetic saturation device 4 comprises guide pin bushing 401, coil 402, probe 403, middle steel bushing 404, when coil 402 is energized, forms magnetic field, and be saturated magnetization when steel pipe 10 passes, can meet the magnetized requirement of flaw detection of different size steel pipe, long-play can not generate heat.
As shown in Figure 1, Figure 7 shows, described magnetic saturation device 4 is provided with jacking gear 8, described jacking gear 8 comprises the compositions such as inner sleeve 801, outer sleeve 802, worm and gear elevating mechanism 803, handwheel 804, reductor 805, when steel pipe specification difference of detecting a flaw causes center High variation, regulated the lifting of magnetic saturation device 4 by reductor 805, reach preset diameters height, the lifting of handwheel 804 pairs of magnetic saturation devices 4 plays fine setting effect, jacking gear 8 adopts worm and gear elevating mechanism 803, and self-locking performance is good.
Before beginning steel tube flaw detection, adjust magnetic saturation device 4 and three-wheel centring means 9, when carrying out steel tube flaw detection, tested steel pipe 10 is pushed by conveying mechanism, continuous linear advances, tested steel pipe 10 is through magnetic saturation device 4, now coil 402 is energized, form magnetic field, steel pipe is saturated magnetization when passing, effectively detect (comprising the defects such as aughty, pit, trachoma, transverse crack) steel pipe surfaces externally and internally or near surface flaw, the signal detected processs and displays by probe 403 to the eddy current flaw detec of control system.
As can be seen here, the present invention adopts through mode magnetic test coil, can effectively detect (comprising aughty, the defect such as pit, trachoma, transverse crack) steel pipe surfaces externally and internally or near surface flaw, the adjustable three-wheel centring means provided, the steel pipe of straight ahead is accurately felt relieved location, effectively ensure that steel pipe enters detection main frame reposefully, ensure the accuracy of detection, simultaneously can Fast transforms centering diameter, increase work efficiency, eddy current main frame adopts Motorized lift device, changes specification very convenient.
Claims (2)
1. an Eddy Current Equipment for Steel Tubes, comprises feeding device, charging roller, electronic pressing wheel device, three-wheel centring means, magnetic saturation device, three-wheel centring means, electronic pressing wheel device, direct current demagnetization device, AC demagnetization device, blanking device, is characterized in that: described feeding device is linked in sequence charging roller, electronic pressing wheel device, three-wheel centring means, magnetic saturation device, three-wheel centring means, electronic pressing wheel device, direct current demagnetization device, AC demagnetization device, blanking device, described three-wheel centring means, comprise substrate, described substrate is provided with girth sheets in worm gear, in substrate and worm gear, girth sheets is bolted to connection, in worm gear, the central authorities of girth sheets are provided with the through hole passed for tested steel pipe, in worm gear, girth sheets is provided with three roller mount rotary pin shafts, three roller mount rotary pin shafts to be evenly arranged in worm gear on girth sheets centered by described through hole, in worm gear, girth sheets outer ring is worm gear, worm gear is rotatable, worm gear is provided with three worm gear bearing pins, described worm gear bearing pin is evenly arranged on described worm gear centered by described through hole, three roller mount to be installed in rotation in described worm gear on girth sheets by three roller mount rotary pin shafts respectively, roller is arranged on the front end of described roller mount respectively by roller shaft, the rear end of roller mount is provided with chute, and the surface of three rollers is tangent with the same circle centered by through hole, the side of described worm gear is provided with regulating device, the worm and wheel of regulating device connects, three described rollers are made synchronously to depart from the center of described through hole by the rotation of worm and wheel, described regulating device comprises worm screw, worm seat, described worm seat is bolted to connection on the substrate, and described worm screw is through described worm seat, the upper end of worm screw is provided with handle, bearing sleeve is contained in described worm seat, and pair of bearings is arranged in described bearing seat, and described magnetic saturation device comprises coil, guide pin bushing, probe, middle steel bushing, when the coil is energized, forms magnetic field, is saturated magnetization, meets steel tube flaw detection magnetized requirement when steel pipe passes.
2. a kind of Eddy Current Equipment for Steel Tubes according to claim 1, it is characterized in that: described magnetic saturation device is provided with jacking gear, described jacking gear comprises the compositions such as inner sleeve, outer sleeve, worm and gear elevating mechanism, handwheel, reductor, when steel pipe specification difference of detecting a flaw causes center High variation, the lifting of magnetizing assembly is regulated by reductor, reach preset diameters height, the lifting of handwheel to magnetizing assembly plays fine setting effect, and jacking gear adopts worm gear structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410176029.5A CN105004785A (en) | 2014-04-23 | 2014-04-23 | Steel pipe eddy-current inspector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410176029.5A CN105004785A (en) | 2014-04-23 | 2014-04-23 | Steel pipe eddy-current inspector |
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| Publication Number | Publication Date |
|---|---|
| CN105004785A true CN105004785A (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410176029.5A Pending CN105004785A (en) | 2014-04-23 | 2014-04-23 | Steel pipe eddy-current inspector |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269559A (en) * | 2016-08-05 | 2017-01-04 | 中国矿业大学 | A kind of automobile air valve push rod comprehensive detection system |
| CN106501356A (en) * | 2016-12-29 | 2017-03-15 | 核动力运行研究所 | A kind of interior crossing type eddy current probe centering method of calibration |
| CN106770635A (en) * | 2017-01-05 | 2017-05-31 | 北京科技大学 | A kind of steel/blank surface defects vortex thermal imaging detecting system and method |
| CN109110371A (en) * | 2018-07-16 | 2019-01-01 | 重庆钢铁(集团)有限责任公司 | Steel tube flaw detection system discharging portion structure |
| CN109632946A (en) * | 2018-12-06 | 2019-04-16 | 沈阳宏远电磁线股份有限公司 | Electromagnetism line detector and electromagnetic wire production system |
| CN111812192A (en) * | 2020-07-27 | 2020-10-23 | 阳春新钢铁有限责任公司 | Device and method for detecting surface defects of deformed steel bar |
-
2014
- 2014-04-23 CN CN201410176029.5A patent/CN105004785A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269559A (en) * | 2016-08-05 | 2017-01-04 | 中国矿业大学 | A kind of automobile air valve push rod comprehensive detection system |
| CN106269559B (en) * | 2016-08-05 | 2018-06-26 | 中国矿业大学 | A kind of automobile air valve push rod comprehensive detection system |
| CN106501356A (en) * | 2016-12-29 | 2017-03-15 | 核动力运行研究所 | A kind of interior crossing type eddy current probe centering method of calibration |
| CN106501356B (en) * | 2016-12-29 | 2019-08-13 | 核动力运行研究所 | A kind of interior crossing type eddy current probe is to neutral method of calibration |
| CN106770635A (en) * | 2017-01-05 | 2017-05-31 | 北京科技大学 | A kind of steel/blank surface defects vortex thermal imaging detecting system and method |
| CN109110371A (en) * | 2018-07-16 | 2019-01-01 | 重庆钢铁(集团)有限责任公司 | Steel tube flaw detection system discharging portion structure |
| CN109632946A (en) * | 2018-12-06 | 2019-04-16 | 沈阳宏远电磁线股份有限公司 | Electromagnetism line detector and electromagnetic wire production system |
| CN111812192A (en) * | 2020-07-27 | 2020-10-23 | 阳春新钢铁有限责任公司 | Device and method for detecting surface defects of deformed steel bar |
| CN111812192B (en) * | 2020-07-27 | 2021-04-13 | 阳春新钢铁有限责任公司 | Device and method for detecting surface defects of deformed steel bar |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151028 |
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| WD01 | Invention patent application deemed withdrawn after publication |