[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS5673344A - Detecting device for breakage of strand of wire rope - Google Patents

Detecting device for breakage of strand of wire rope

Info

Publication number
JPS5673344A
JPS5673344A JP15005879A JP15005879A JPS5673344A JP S5673344 A JPS5673344 A JP S5673344A JP 15005879 A JP15005879 A JP 15005879A JP 15005879 A JP15005879 A JP 15005879A JP S5673344 A JPS5673344 A JP S5673344A
Authority
JP
Japan
Prior art keywords
rope
strand
detection
breakage
damage part
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
Application number
JP15005879A
Other languages
Japanese (ja)
Inventor
Yutaka Hirama
Kenzo Takahashi
Sadayuki Hori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Elevator Engineering and Service Co Ltd
Original Assignee
Hitachi Elevator Engineering and Service Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Elevator Engineering and Service Co Ltd filed Critical Hitachi Elevator Engineering and Service Co Ltd
Priority to JP15005879A priority Critical patent/JPS5673344A/en
Publication of JPS5673344A publication Critical patent/JPS5673344A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

PURPOSE: To surely enable to detect a damage part of the rope by a method wherein a leakage flux from the damage part of a magnetized rope is detected.
CONSTITUTION: An exciting unit 11 composed of a pair of yokes 10 and a permanent magnet 9 for magnitizing the rope 1 is installed near the rope 1 travelling to an arrow mark direction. Making a separation P more than the width of the strand of the rope, a detection part 12 composed of a U letter type iron core 13 and a detection coil 14 wound round the iron core 13 is installed. When a breakage part 15 of the strand exists for example, a leakage flux ϕb is detected through a detection coil 14. With this, a detection signal corresponding only to the damage part of the rope is obtained, as a result, detection of the damage part of the rope can be surely performed.
COPYRIGHT: (C)1981,JPO&Japio
JP15005879A 1979-11-21 1979-11-21 Detecting device for breakage of strand of wire rope Pending JPS5673344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15005879A JPS5673344A (en) 1979-11-21 1979-11-21 Detecting device for breakage of strand of wire rope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15005879A JPS5673344A (en) 1979-11-21 1979-11-21 Detecting device for breakage of strand of wire rope

Publications (1)

Publication Number Publication Date
JPS5673344A true JPS5673344A (en) 1981-06-18

Family

ID=15488580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15005879A Pending JPS5673344A (en) 1979-11-21 1979-11-21 Detecting device for breakage of strand of wire rope

Country Status (1)

Country Link
JP (1) JPS5673344A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0376116A2 (en) * 1988-12-29 1990-07-04 Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann Method for identifying the position of a crack in reinforcing steel
CN112326781A (en) * 2021-01-04 2021-02-05 四川大学 Bearing needle magnetic leakage detection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0376116A2 (en) * 1988-12-29 1990-07-04 Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann Method for identifying the position of a crack in reinforcing steel
CN112326781A (en) * 2021-01-04 2021-02-05 四川大学 Bearing needle magnetic leakage detection device

Similar Documents

Publication Publication Date Title
CN106290553B (en) Novel electromagnetic sensor system for detecting defects of steel wire rope
WO2002010737A3 (en) Method and system for detecting stator core faults
ES2026525T3 (en) DETECTION OF MAGNETIC DISCONTINUITIES.
KR840002524A (en) Device for detecting metal body
EP0816797A3 (en) Apparatus for and method of measuring corrosion degree of cable
JPS5673344A (en) Detecting device for breakage of strand of wire rope
JPS57180517A (en) Breaking detecting method for steel code conveyer belt
JPS5639458A (en) Detector for damage of wire rope strand
JPS55101044A (en) Flaw detector
JPS5633541A (en) Detecting device for flaw of magnetic material
ES295689U (en) Eddy current probes for detecting faults in structures and methods of detecting such faults.
SU1532806A1 (en) Device for monitoring the sectional area of steel ropes
JPS5460487A (en) Method of detecting steel material position at compressed connection sections
JPS55138602A (en) Detection of wire rope position
JPS5571943A (en) Magnetic flaw detector for rope
JPS551533A (en) Magnetic flaw detection apparatus of rope
JPS57200822A (en) Electromagnetic flow meter
JPS5783150A (en) Commutatorless motor
JPS5550181A (en) Device for inspecting arrangement of reinforcing iron bars in building
JPS55129747A (en) Damage detection and measuring method for terminal part of steel wire
JPS5644840A (en) Magnetic defect detecting device for rope
JPH0338692Y2 (en)
CA1270502A (en) Steel cable activated magnetic switch
KR840002360B1 (en) Electro magnetic damage detecting instrument of long magnetic substance
JPS55114947A (en) Magnetic flaw detector of rope