Device and method for damage detection of ferromagnetic material
A ferromagnetic material and damage detection technology, applied in the direction of material magnetic variables, can solve the problems of safety hazards, less detection of ropes, easy occurrence of broken wires, warped wires and overturning, etc., to improve stability and reliability, Extended service life and good detection effect
Active Publication Date: 2016-11-16
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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Problems solved by technology
However, it is prone to defects such as broken wires, warped wires and overturning during production and long-term use, which will affect the production process and normal use. deal with
[0004] In the current field of non-destructive testing, most of the detection objects are damage detection for in-service steel wire ropes and steel pipes with large diameters. The multi-sensor arrangement is adopted, the system design and signal extraction are relatively complicated, and the detection of ropes in the production process is less , causing some ropes to be defective when they leave the factory, which brings safety hazards to the first use
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[0027] The preferred embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0028] Such as figure 1 As shown, this example provides a damage detection device for ferromagnetic materials, including: a spring 1, a micro switch panel 2, a first permanent magnet 4, a magnetic shielding device 10, a second permanent magnet 5 and a non-magnetic guide sleeve 6 , the spring 1 is arranged on one side of the micro switch panel 2, and the first permanent magnet 4 is arranged on the other side of the micro switch panel 2 away from the spring 1; the first permanent magnet 4 is arranged Between the micro switch panel 2 and the magnetic shielding device 10, the magnetic shielding device 10 is arranged between the first permanent magnet 4 and the second permanent magnet 5, and the non-magnetic permeable guide sleeve 6 passes through in turn Through the spring 1, the micro switch panel 2, the first permanent magnet 4, th...
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The invention provides a device and a method for damage detection of ferromagnetic materials, the damage detection device includes: a spring, micro switch panel, the first permanent magnet, the magnetic shielding device, second permanent magnet and the non-magnetic guide sleeve, one side of the spring is arranged on the micro switch panel, the first permanent magnet the other side is set to the micro switch panel away from the spring; the first permanent magnet is arranged between the switch panel and the magnetic shielding device, the magnetic shielding device is arranged on the first permanent magnet and second permanent magnets, the magnetic sequentially passes through the spring, the micro switch panel, the first permanent magnet the magnetic shielding device, and second of the non permanent magnet guide sleeve; a magnetic detection device is arranged in the magnetic shielding device. The invention can effectively reduce the number of magnetic components, reducing in ferromagnetic material arranged on the magnetic sensor's difficulties, ensure that the damage detection device is not damaged, prolong the service life, and improve the stability and reliability of detection.
Description
technical field [0001] The invention relates to a damage detection device, in particular to a damage detection device of a ferromagnetic material, and to a damage detection method of the damage detection device including the ferromagnetic material. Background technique [0002] The application of ferromagnetic materials has become more and more extensive. For example, the micro-special ropes used for special door operators such as garage doors and elevator doors are small-diameter slender magnetic ropes made of ferromagnetic materials; in fitness equipment, Small diameter wire ropes of various ferromagnetic materials are also widely used in the automobile, motorcycle and bicycle industries. [0003] Micro-special ropes and small-diameter steel wire ropes have high tensile strength, fatigue resistance and impact toughness. Under high-speed working conditions, they have the characteristics of wear resistance, shock resistance and corrosion resistance, and can transmit long-dis...
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IPC IPC(8): G01N27/83
Inventor 张东来晏小兰潘世旻张恩超高伟
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL