CN201237962Y - Magnetizing assembly for stay cable - Google Patents
Magnetizing assembly for stay cable Download PDFInfo
- Publication number
- CN201237962Y CN201237962Y CNU2008200684311U CN200820068431U CN201237962Y CN 201237962 Y CN201237962 Y CN 201237962Y CN U2008200684311 U CNU2008200684311 U CN U2008200684311U CN 200820068431 U CN200820068431 U CN 200820068431U CN 201237962 Y CN201237962 Y CN 201237962Y
- Authority
- CN
- China
- Prior art keywords
- support unit
- supporting
- unit
- magnetization
- suspension cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a stay cable-dedicated magnetizer, which belongs to a magnetostrictive guided wave detection device and is cooperated with a magnetostrictive guided wave detection instrument to resolve the problem of the attraction reduction and easy separation of permanent magnets on a stay cable. The magnetizer comprises a supporting unit and magnetizing units; wherein, the supporting unit comprises an upper supporting unit and a lower supporting unit which have the same structure; each supporting unit comprises a first supporting plate, a second supporting plate and links, which are connected together; one edge of each supporting plate is provided with a semicircular concave arc; the inner surface of each supporting plate is provided with guide slots; each magnetizing unit comprises an armature and magnets attracted to both ends of the armature; and each magnet is wrapped by an iron box and fixed on the armature by bolts. When the magnetizer is used, the upper and the lower supporting units surround the stay cable and are integrally connected together by hasps, and the magnetizing units are assembled in the guide slots on the inner sides of the first and the second supporting plates of the upper and the lower supporting units and fixed by locking bolts arranged on the supporting plates. The magnetizer, which has the advantages of simple structure and stable and reliable assembly, is applicable to the magnetization of inclined or vertical components such as stay cables and hanger rods.
Description
Technical field
The utility model belongs to the magnetic striction wave guide checkout gear, is specifically related to a kind of suspension cable magnetizing assembly, is used with the magnetic striction wave guide detector.
Background technology
The magnetic striction wave guide technology is owing to have the noncontact excitation and the advantage of reception guided wave signals, obtain application more and more widely in recent years, as number of patent application 200710053208.X " a kind of magnetostrictive guide wave damage-free detection method ", number of patent applications 200710119319.6 " a kind of magneto strictive sensor that is used for the steel stranded wire supersonic guided wave detection " etc. are done concrete research but the suspension cable magnetic striction wave guide is detected with magnetizing assembly as yet.Existing magnetic striction wave guide detector generally adopts permanent magnet that bias magnetic field is provided, and member is magnetized.Permanent magnet directly is adsorbed on the tested member, provides suitable bias magnetization intensity for magnetic striction wave guide detects.For pipe detection, because anticorrosive coat is thinner, magnetizing assembly is easy to adsorb on it; And because pipeline is generally the level installation, thereby the repulsive force between the magnetization unit same polarity is very little, is easy to guarantee that the stable of magnetizing assembly is adsorbed on the pipeline.But detect for suspension cable, the installation of magnetization unit has certain gradient, and some is local even reach 90 degree, and suspension cable tyre coating layer is thicker, and the absorption affinity of permanent magnet on suspension cable obviously descended.On the other hand, be subjected to the influence of bridge extraneous factor, suspension cable is in vibrational state.Therefore, detect for suspension cable, be subjected to the influence of decline of permanent magnet absorption affinity and Inclined Cable Vibration, permanent magnet is easy to come off from suspension cable.
Summary of the invention
The utility model provides a kind of suspension cable magnetizing assembly, is used with the magnetic striction wave guide detector, solves permanent magnet absorption affinity on suspension cable and descends the problem that comes off easily.
A kind of suspension cable magnetizing assembly of the present utility model is made of support unit and magnetization unit, it is characterized in that:
Described support unit comprises upper support unit and the lower support unit that structure is identical, and each is formed by connecting by first supporting bracket, second supporting bracket and connecting rod, one side first, second supporting bracket has a semicircle concave arc, inner surface has gathering sill;
Described magnetization unit comprises armature and is adsorbed in the magnet at its two ends, and magnet is encased by magnetic box, by screw on armature;
During use, described upper and lower support unit surrounds suspension cable, is connected as one by hasp, and magnetization unit is installed in the gathering sill of first and second supporting bracket inboard of described upper and lower support unit, fixes by the lock-screw on the supporting bracket.
Described suspension cable magnetizing assembly is characterized in that:
Described magnetization unit dimensions is identical, and number is 4～12, and when described upper and lower support unit was connected as one by hasp, magnetization unit circumferentially was evenly distributed in the gathering sill of upper and lower support unit supports plate inboard.
The utility model in use at first is installed in upper and lower support unit on the suspension cable, begins to install magnetization unit then.When magnetization unit is in place, it is locked by lock-screw.All magnetization units are fixed in the support unit, the deficiency that magnetization unit in the time of can avoiding detecting comes off from suspension cable because suction adsorption is repelled together or mutually, and the practicability that detects for the suspension cable magnetic striction wave guide provides the foundation.
The utility model is simple in structure, installs reliable and stablely, can be applicable to the magnetization of inclinations such as suspension cable, suspension rod or stay.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is A-A cutaway view of Fig. 1;
Fig. 3 is a magnetization unit structural representation among Fig. 1;
Fig. 4 is a upper and lower support unit hasp connection diagram among Fig. 1;
Another embodiment of Fig. 5 the utility model contains the structural representation of eight magnetization units.
Embodiment
As shown in Figure 1, 2, the utility model embodiment is made of support unit and magnetization unit 5, wherein, support unit comprises upper support unit and the lower support unit that structure is identical, and each is formed by connecting by first supporting bracket 1, second supporting bracket 2 and first connecting rod 3, second connecting rod 10; First connecting rod 3, second connecting rod 10 tip designs have screw thread, are connected with pad 9 by nut 8 with first and second supporting bracket.One side of first, second supporting bracket has semicircle concave arc, and inner surface has gathering sill 4.Supporting bracket and connecting rod are all made with aluminium, have alleviated the quality of support unit, and magnetization unit can not adsorbed on it.
During use, described upper and lower support unit surrounds suspension cable 7, is connected as one by hasp, and magnetization unit 5 is installed in the gathering sill 4 of first and second supporting bracket inboard of described upper and lower support unit, and is fixing by the lock-screw on the supporting bracket 6.
Gathering sill 4 has all been designed in first and second supporting bracket inboard, arranges a magnetization unit 5 in each gathering sill 4.The number of required magnetization unit 5 equated also along the circumferential direction uniform when the number of gathering sill 4 detected with suspension cable, and in the present embodiment, 6 magnetization units are arranged on the suspension cable along gathering sill.Gathering sill and magnetization unit are along suspension cable circumferential arrangement situation as shown in Figure 2.The installation route of magnetization unit on support unit determined in the design of gathering sill, and each magnetization unit is spaced from each other, and avoided in installation and the testing process each magnetization unit to attract each other or repels and come off from suspension cable.Each gathering sill place design has screwed hole on each supporting bracket, and lock-screw 6 is installed in the screwed hole, and lock-screw 6 compresses armature 13 ends, and magnetization unit 5 is pressed on the supporting bracket, as shown in Figure 1.
As shown in Figure 3, magnetization unit 5 comprises armature 13 and is adsorbed in first magnet 11, second magnet 12 at its two ends that first, second magnet is encased by the magnetic box 14 of rolled stainless steel, and is fixed on the armature 13 by screw 15 and spring washer 16.When suspension cable detects, magnetization unit 5 is adsorbed on the suspension cable 7, first magnet 11, armature 13, second magnet 12 and suspension cable 7 constitute a magnetic loop, and suspension cable is magnetized.During actual detected, according to the requirement of the magnetization along a plurality of magnetization units 5 of suspension cable 7 circumferential arrangement.
As shown in Figure 4, in upper support unit 18 and the lower support unit 19, on corresponding each the supporting bracket outside end face hasp 17 is installed, when the utility model magnetizing assembly is installed, upper and lower support unit is symmetrically arranged on the suspension cable, utilizes two hasps 17 that upper and lower support unit is connected into an integrated support unit rapidly simultaneously.During the online detection of suspension cable, the suspension cable two ends are all the non-contactable region territory, and support unit can't pass and be arranged on the cable body from two ends.The use of hasp 17 has realized the open-close type design of support unit, and it is more rapid reliable that the utility model magnetizing assembly is installed.
Detect for the major diameter suspension cable, the magnetization is not enough, when needing to increase magnetization unit, only needs to increase the supporting bracket size, increases circumferentially uniform gathering sill number of supporting bracket upper edge, presses the said apparatus design and gets final product.During eight magnetization units of circumferential arrangement, the utility model magnetizing assembly structure such as Fig. 5 show.
The utility model magnetizing assembly at first is installed in upper and lower support unit on the suspension cable when concrete the installation, by hasp upper and lower support unit is connected into an integrated support unit.Along gathering sill magnetization unit is installed then, when magnetization unit is in place, it is locked on the supporting bracket by lock-screw.
Claims (2)
1. a suspension cable magnetizing assembly is made of support unit and magnetization unit, it is characterized in that:
Described support unit comprises upper support unit and the lower support unit that structure is identical, and each is formed by connecting by first supporting bracket, second supporting bracket and connecting rod, one side first, second supporting bracket has a semicircle concave arc, inner surface has gathering sill;
Described magnetization unit comprises armature and is adsorbed in the magnet at its two ends, and magnet is encased by magnetic box, by screw on armature;
During use, described upper and lower support unit surrounds suspension cable, is connected as one by hasp, and magnetization unit is installed in the gathering sill of first and second supporting bracket inboard of described upper and lower support unit, fixes by the lock-screw on the supporting bracket.
2. suspension cable magnetizing assembly as claimed in claim 1 is characterized in that:
Described magnetization unit dimensions is identical, and number is 4～12, and when described upper and lower support unit was connected as one by hasp, magnetization unit circumferentially was evenly distributed in the gathering sill of upper and lower support unit supports plate inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200684311U CN201237962Y (en) | 2008-07-11 | 2008-07-11 | Magnetizing assembly for stay cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200684311U CN201237962Y (en) | 2008-07-11 | 2008-07-11 | Magnetizing assembly for stay cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201237962Y true CN201237962Y (en) | 2009-05-13 |
Family
ID=40650697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200684311U Expired - Fee Related CN201237962Y (en) | 2008-07-11 | 2008-07-11 | Magnetizing assembly for stay cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201237962Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721751A (en) * | 2012-05-28 | 2012-10-10 | 华中科技大学 | Magnetostrictive guided wave receiving sensor |
| CN104062043A (en) * | 2014-06-11 | 2014-09-24 | 南昌航空大学 | Magnetoelastic cable force sensor capable of measuring in sliding mode in circumferential direction and measuring system thereof |
| CN105547805A (en) * | 2015-12-07 | 2016-05-04 | 北京工业大学 | Stay cable active control breaking device and making method thereof |
-
2008
- 2008-07-11 CN CNU2008200684311U patent/CN201237962Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721751A (en) * | 2012-05-28 | 2012-10-10 | 华中科技大学 | Magnetostrictive guided wave receiving sensor |
| CN104062043A (en) * | 2014-06-11 | 2014-09-24 | 南昌航空大学 | Magnetoelastic cable force sensor capable of measuring in sliding mode in circumferential direction and measuring system thereof |
| CN104062043B (en) * | 2014-06-11 | 2016-05-18 | 南昌航空大学 | Magnetic bullet cable tension sensor and measuring system thereof that a kind of circumferential slip is measured |
| CN105547805A (en) * | 2015-12-07 | 2016-05-04 | 北京工业大学 | Stay cable active control breaking device and making method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102016528B (en) | Device for measuring tension | |
| US8098065B2 (en) | Magnetostrictive sensor probe for guided-wave inspection and monitoring of wire ropes/cables and anchor rods | |
| CN104122330B (en) | Defect inspection method and apparatus based on electromagnetic acoustic longitudinal wave guide | |
| WO2017080133A1 (en) | Open magnetic circuit-based method and device for detecting magnetostrictive guided-wave | |
| CN201237962Y (en) | Magnetizing assembly for stay cable | |
| CN201852944U (en) | Magnetic suspension electromagnetic induction detector | |
| CN102023309A (en) | Maglev electromagnetic induction cymoscope | |
| CN103460574A (en) | Vibration power generator | |
| CN108776178A (en) | A kind of electromagnet ultrasonic changer and its working method for exciting pipeline torsion guided wave | |
| CN106768503A (en) | A kind of magnetic-elastic stress sensor and cable cable force measurement system | |
| CN103048379A (en) | Device and method for recognizing damage to bridge stay cable | |
| CN205210021U (en) | Magnetic induced shrinkage or elongation guided wave detects sensor and detecting system based on open magnetic circuit | |
| CN201965247U (en) | Low-frequency vibration generator with magnetic suspension structure | |
| CN108037186B (en) | Magnetostrictive film type passive rail flaw detection device | |
| CN102494827B (en) | Horizontal inductive tension detecting device for steel wire rope and horizontal inductive tension detecting method for same | |
| CN104874538B (en) | Bending-mode magnetostriction sensor | |
| CN109668956A (en) | Marine riser weld defect ac magnetic field array detection probe | |
| US10073066B2 (en) | Non-contact magnetostrictive sensor for guided wave monitoring of wire ropes or other solid ferrous objects without ferromagnetic coupling | |
| CN109100071B (en) | Parallel steel wire inhaul cable force detection device | |
| CN105823689A (en) | Novel cable test device | |
| CN109580766A (en) | A kind of torsion mode guided wave sensor | |
| CN205533935U (en) | A electric eddy current damping structure for gravity appearance | |
| CN205301606U (en) | Electromagnetic damper and gravity appearance | |
| CN102445295B (en) | Three-edged sleeve type detection apparatus for tension force of steel wire rope and method thereof | |
| CN210167944U (en) | Magnetic liquid plane composite multi-frequency vibration energy collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20120711 |