JPS5639458A - Detector for damage of wire rope strand - Google Patents

Detector for damage of wire rope strand

Info

Publication number
JPS5639458A
JPS5639458A JP11350779A JP11350779A JPS5639458A JP S5639458 A JPS5639458 A JP S5639458A JP 11350779 A JP11350779 A JP 11350779A JP 11350779 A JP11350779 A JP 11350779A JP S5639458 A JPS5639458 A JP S5639458A
Authority
JP
Japan
Prior art keywords
damage
rope
detector
wire rope
strand
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.)
Granted
Application number
JP11350779A
Other languages
Japanese (ja)
Other versions
JPS5840700B2 (en
Inventor
Kenzo Takahashi
Yutaka Hirama
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 JP11350779A priority Critical patent/JPS5840700B2/en
Publication of JPS5639458A publication Critical patent/JPS5639458A/en
Publication of JPS5840700B2 publication Critical patent/JPS5840700B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To provide simple-structured and easy-to-handle detector for damage of rope wire strand by detecting elctromagnetically the leak magnetic flux of wire rope which varies according to damage by use of the detector with the wire rope guide groove of a given shape.
CONSTITUTION: The detector 13 is provided with the guide groove 17 whose width is a little larger than the diameter of the wire rope 4 and whose depth is 1.2 times larger than the diameter of the rope 4, and it detects electromagetically the leak magnetic flux which varies according to the damage of rope 4 magnetized by the coil 15 of coiled section 18. In this system, when ampere turn is increased by increasing the number of coils in the coil 15, it is possible to detect the damage of strand of rope 4 without the use of amplifier, etc., Thereby ensuring simple-structured and space-saving rope strand damage detector.
COPYRIGHT: (C)1981,JPO&Japio
JP11350779A 1979-09-06 1979-09-06 Wire rope damage detection device Expired JPS5840700B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11350779A JPS5840700B2 (en) 1979-09-06 1979-09-06 Wire rope damage detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11350779A JPS5840700B2 (en) 1979-09-06 1979-09-06 Wire rope damage detection device

Publications (2)

Publication Number Publication Date
JPS5639458A true JPS5639458A (en) 1981-04-15
JPS5840700B2 JPS5840700B2 (en) 1983-09-07

Family

ID=14614072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11350779A Expired JPS5840700B2 (en) 1979-09-06 1979-09-06 Wire rope damage detection device

Country Status (1)

Country Link
JP (1) JPS5840700B2 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5895339A (en) * 1981-11-26 1983-06-06 Konishiroku Photo Ind Co Ltd Silver halide photosensitive material
JPS6011064U (en) * 1983-07-04 1985-01-25 新日本製鐵株式会社 Local magnetizer combined detection end
US5695909A (en) * 1995-10-26 1997-12-09 Fuji Photo Film Co., Ltd. Silver halide photographic material
JP2002181792A (en) * 2000-12-15 2002-06-26 Hitachi Building Systems Co Ltd Damage detection apparatus for wire rope
KR100767743B1 (en) 2007-03-07 2007-10-17 김성삼 Damage detecting apparatus of wire rope
WO2019171667A1 (en) * 2018-03-08 2019-09-12 株式会社島津製作所 Magnetic body inspection device
CN112326781A (en) * 2021-01-04 2021-02-05 四川大学 Bearing needle magnetic leakage detection device
CN113237946A (en) * 2021-05-12 2021-08-10 四川大学 Bearing roller pin array type magnetic leakage detection device
JP2021173605A (en) * 2020-04-23 2021-11-01 株式会社島津製作所 Wire rope inspection device and wire rope inspection system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5895339A (en) * 1981-11-26 1983-06-06 Konishiroku Photo Ind Co Ltd Silver halide photosensitive material
JPS6011064U (en) * 1983-07-04 1985-01-25 新日本製鐵株式会社 Local magnetizer combined detection end
US5695909A (en) * 1995-10-26 1997-12-09 Fuji Photo Film Co., Ltd. Silver halide photographic material
JP2002181792A (en) * 2000-12-15 2002-06-26 Hitachi Building Systems Co Ltd Damage detection apparatus for wire rope
JP4500437B2 (en) * 2000-12-15 2010-07-14 株式会社日立ビルシステム Wire rope damage detection device
KR100767743B1 (en) 2007-03-07 2007-10-17 김성삼 Damage detecting apparatus of wire rope
WO2019171667A1 (en) * 2018-03-08 2019-09-12 株式会社島津製作所 Magnetic body inspection device
JPWO2019171667A1 (en) * 2018-03-08 2020-12-03 株式会社島津製作所 Magnetic material inspection device
JP2021173605A (en) * 2020-04-23 2021-11-01 株式会社島津製作所 Wire rope inspection device and wire rope inspection system
CN112326781A (en) * 2021-01-04 2021-02-05 四川大学 Bearing needle magnetic leakage detection device
CN113237946A (en) * 2021-05-12 2021-08-10 四川大学 Bearing roller pin array type magnetic leakage detection device
CN113237946B (en) * 2021-05-12 2022-02-08 四川大学 Bearing roller pin array type magnetic leakage detection device

Also Published As

Publication number Publication date
JPS5840700B2 (en) 1983-09-07

Similar Documents

Publication Publication Date Title
JPS56148052A (en) Electromagnetic flaw detector for continuous magnetic material
JPS5639458A (en) Detector for damage of wire rope strand
JPS5421889A (en) Angle sensor
JPS5349498A (en) Coin discriminating apparatus
JPS5460487A (en) Method of detecting steel material position at compressed connection sections
JPS5563756A (en) Magnetic flaw detector for rope
JPS51126165A (en) Direct-acting type position detector
JPS5673344A (en) Detecting device for breakage of strand of wire rope
JPS51136440A (en) A detecting device of the extreme point of a coiled metal strip
JPS52117263A (en) Device for detecting diameter of coil
JPS5366757A (en) Diameter measuring system for band-shaped coils
JPS5341971A (en) Fault detector of electromagnetic device
JPS53135379A (en) Electromagnetical non-destructive detection method and apparatus for the same
JPS54151785A (en) System for detecting abnormal speed of moving body
JPS5571943A (en) Magnetic flaw detector for rope
JPS5590864A (en) Method of testing contact of multicore cable
JPS5422874A (en) Angle sensor
JPS5238294A (en) Metal detector
JPS53135378A (en) Electromagnetical non-destructive flaw detection method and apparatus for the same
JPS5267786A (en) Steel sleeve position detector at junction of aluminum cable steel reinforce d
JPS5643155A (en) Tension controller for winder
JPS5244695A (en) Iron piece detector
JPS51126166A (en) Direct-acting type position detector
JPS5252618A (en) Tape winding state detecting device
JPS5295263A (en) Leakage flux detector for rate measurement