JPS5644840A - Magnetic defect detecting device for rope - Google Patents
Magnetic defect detecting device for ropeInfo
- Publication number
- JPS5644840A JPS5644840A JP12074979A JP12074979A JPS5644840A JP S5644840 A JPS5644840 A JP S5644840A JP 12074979 A JP12074979 A JP 12074979A JP 12074979 A JP12074979 A JP 12074979A JP S5644840 A JPS5644840 A JP S5644840A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic pole
- pole shoes
- excitation
- running rope
- rope
- 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.)
- Pending
Links
Abstract
PURPOSE: To design small size and light weight of an exciter by specifying the constitution of magnetic pole shoes and the arrangement places of excitation materials.
CONSTITUTION: A pair of magnetic pole shoes 4, 5 (in the right and left side) of exciter 2 are structured with fixed side magnetic pole shoes 4a, 4b and mounting/ dismounting side magnetic pole shoes 5a, 5b which can be mounted and dismounted in accordance with the outer diameter of running rope 1 which is the object to be inspected, and under fixed side magnetic pole shoes 4a, 4b, excitation material 3a and 3b are arranged respectively. Thereby, if there is a damaged part in a strand and others in running rope 1, the leak mgnetic flux is generated at that part, and when the defect part interlinks with detecting coil 10, a micro electromotive voltage is generated in detecting coil 10 and this electromotive voltage is detected as the damage signal. And, excitation material 3a, 3b are arranged directly under excitation shoes 4, 5 and magnetic pole shoes 4, 5 can be mounted, dismounted or exchanged in accordance with the outer diameter of running rope 1, as a result, the magnetization efficiency of the running rope is improved, thus, the reduction of magnetic force of excitation material 3a, 3b is made feasible and the expected purpose is attained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12074979A JPS5644840A (en) | 1979-09-21 | 1979-09-21 | Magnetic defect detecting device for rope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12074979A JPS5644840A (en) | 1979-09-21 | 1979-09-21 | Magnetic defect detecting device for rope |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5644840A true JPS5644840A (en) | 1981-04-24 |
Family
ID=14794025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12074979A Pending JPS5644840A (en) | 1979-09-21 | 1979-09-21 | Magnetic defect detecting device for rope |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5644840A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0121084A2 (en) * | 1983-03-31 | 1984-10-10 | NDT Technologies, Inc. | Magnetic inspection device |
WO2008093410A1 (en) * | 2007-01-31 | 2008-08-07 | Mitsubishi Electric Corporation | Wire rope flaw detector |
JP2010169523A (en) * | 2009-01-22 | 2010-08-05 | Mitsubishi Electric Corp | Wire rope flaw detector |
CN105223267A (en) * | 2015-10-12 | 2016-01-06 | 清华大学 | Ferromagnetic component off-line leakage field imaging detection device and method |
-
1979
- 1979-09-21 JP JP12074979A patent/JPS5644840A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0121084A2 (en) * | 1983-03-31 | 1984-10-10 | NDT Technologies, Inc. | Magnetic inspection device |
WO2008093410A1 (en) * | 2007-01-31 | 2008-08-07 | Mitsubishi Electric Corporation | Wire rope flaw detector |
JPWO2008093410A1 (en) * | 2007-01-31 | 2010-05-20 | 三菱電機株式会社 | Wire rope flaw detector |
JP5026440B2 (en) * | 2007-01-31 | 2012-09-12 | 三菱電機株式会社 | Wire rope flaw detector |
US8536861B2 (en) | 2007-01-31 | 2013-09-17 | Mitsubishi Electric Corporation | Wire rope flaw detector |
DE112007003313B4 (en) | 2007-01-31 | 2019-06-27 | Mitsubishi Electric Corp. | wire rope flaw |
JP2010169523A (en) * | 2009-01-22 | 2010-08-05 | Mitsubishi Electric Corp | Wire rope flaw detector |
US7982458B2 (en) | 2009-01-22 | 2011-07-19 | Mitsubishi Electric Corporation | Wire-rope flaw detector |
CN105223267A (en) * | 2015-10-12 | 2016-01-06 | 清华大学 | Ferromagnetic component off-line leakage field imaging detection device and method |
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