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A non-destructive testing device and method for elevator traction steel belt

An elevator traction and non-destructive testing technology, applied in the direction of material magnetic variables, can solve the problems of poor anti-interference ability, low detection accuracy, poor accuracy, etc., to avoid missed detection, improve detection accuracy, and solve the effect of low detection accuracy

Active Publication Date: 2018-08-07
山西慧达澳星科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of low detection accuracy, easy missed detection, poor anti-interference ability and poor accuracy of the existing damage detection technology for elevator traction steel strips, the present invention provides a non-destructive detection device and method for elevator traction steel strips

Method used

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  • A non-destructive testing device and method for elevator traction steel belt
  • A non-destructive testing device and method for elevator traction steel belt
  • A non-destructive testing device and method for elevator traction steel belt

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Embodiment Construction

[0020] A non-destructive testing device for elevator traction steel strips, comprising a shielding case 1, a reference magnetic field source 2, a magnetic field sensor 4, a differential amplifier circuit 5, a filter circuit 6, a signal transmission module 7, and a computer 8;

[0021] Wherein, the left side and the right side of the shielding shell 1 are respectively provided with a detection hole through the inside and outside, and the two detection holes are opposite to each other; the number of reference magnetic field sources 2 is two; the two reference magnetic field sources 2 are respectively Installed in the left part of the inner cavity and the right part of the inner cavity of the shielding shell 1, and the magnetic field strengths and directions of the two reference magnetic field sources 2 are equal; the number of magnetic field sensors 4 is two groups; each group of magnetic field sensors 4 includes N magnetic field sensors arranged densely and equidistantly from fr...

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Abstract

The invention relates to a damage detection technology for an elevator dragging steel band, in particular relates to a nondestructive detection device and a nondestructive detection method for an elevator dragging steel band, and aims to solve the problems of low detection precision, easiness in detection omission, low interference resistance and low accuracy of the existing damage detection technology for the elevator dragging steel band. The nondestructive detection device for the elevator dragging steel band comprises a shielding shell, two reference magnetic field sources, a magnetic field sensor, a differential amplification circuit, a filtering circuit, a signal transmission module and a computer, wherein an inside to outside through detection hole is formed in each of the left side face and the right side face of the shielding shell, and the two detection holes are opposite; the two reference magnetic field sources are respectively mounted at the left part and the right part of an inner cavity of the shielding shell; magnetic fields generated by the two reference magnetic field sources are identical in field intensity and direction. The nondestructive detection device is applicable to damage detection of the elevator dragging steel band.

Description

technical field [0001] The invention relates to a damage detection technology for an elevator traction steel belt, in particular to a non-destructive detection device and method for an elevator traction steel belt. Background technique [0002] As the suspension carrier of elevator pod and various vertical lifting machinery, elevator traction steel belt is a key component that determines safety and productivity. Elevator traction steel belts usually consist of a multi-strand steel core (each steel core consists of dozens of extremely thin steel wires) and a polyurethane layer wrapped around the steel core. Once the steel core or the steel wire in the steel core is damaged, the tensile strength of the elevator traction steel belt will decrease, thereby affecting the safe use of the elevator traction steel belt. Therefore, in order to ensure the safe use of the elevator traction steel belt, it is necessary to carry out damage detection on the elevator traction steel belt. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/83
CPCG01N27/83
Inventor 李建平
Owner 山西慧达澳星科技有限公司
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