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Online monitoring method and system for tearing fault of shear spring

A shear spring and fault detection technology, applied in the testing of mechanical parts, the testing of machine/structural parts, measuring devices, etc., can solve the problems of few shear springs, inability to detect shear spring rubber cracks and crack lengths, etc.

Pending Publication Date: 2021-03-30
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are few technologies for fault detection of shear springs, and the existing technologies cannot detect whether the shear spring rubber is cracked and the length of the gap

Method used

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  • Online monitoring method and system for tearing fault of shear spring
  • Online monitoring method and system for tearing fault of shear spring
  • Online monitoring method and system for tearing fault of shear spring

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] According to one aspect of the present invention, a shear spring tear fault online monitoring method and system are provided, wherein the shear spring fault detection method and system include: a displacement sensor 1, a film tension and pressure sensor 2, a shear spring Spring rubber 3, cut spring steel plate 4, data acquisition instrument 5, electronic computer 6, wireless signal transceiver module 7, data conversion module 8.

[0023] D...

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Abstract

The invention discloses an online monitoring method and system for a tearing fault of a shear spring. The online monitoring system comprises a displacement sensor, a thin film tension and pressure sensor, shear spring rubber, shear spring steel plates, a data acquisition instrument, an electronic computer, a wireless signal transceiving module and a data conversion module. The thin film tension and pressure sensor monitors the tension and pressure of the shear spring during working, and when the shear spring rubber is torn, the thin film tension and pressure sensor can measure that the tensionand pressure below a tearing opening of the shear spring rubber are reduced to different degrees, so that whether the shear spring rubber is torn or not and the length of a crack can be judged according to the pressure value measured by the thin film tension and pressure sensor, and fault diagnosis and residual life prediction of the shear spring are achieved. Displacement sensors are respectively mounted at the end parts of the two shear spring steel plates, so that the displacement of the two rigid parts connected with the shear spring is detected, and misjudgment of a detection system caused by pressure reduction due to displacement reduction is prevented.

Description

technical field [0001] The invention relates to the field of vibration machinery and fault detection, in particular to an online monitoring method and system for tearing faults of shear springs. Background technique [0002] As an elastic component, shear springs are widely used in various construction machinery. In the field of vibration machinery, shear springs are often used as two-mass vibrating feeders, vibrating relaxation screens and vibrating centrifuges to connect two vibrating masses. The elastic parts of the body, whose elastic material is rubber, will age after long-term use, and work under high-intensity alternating loads for a long time, so the shear spring is prone to tear damage during work, causing equipment failure, affecting production, and vibration Equipment usually contains several shear springs, and damage to one of the shear springs will change the stiffness distribution of the equipment, causing equipment vibration instability and increased amplitude...

Claims

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Application Information

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IPC IPC(8): G01M13/00G01L5/00
CPCG01L5/00G01M13/00
Inventor 王新文徐宁宁林冬冬于驰
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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