A fretting corrosion auxiliary friction device and test method for a high frequency fatigue testing machine

By designing a micro-moving corrosion-assisted friction device for high-frequency fatigue testing machines, the problem that existing tests cannot be adapted to different environments is solved, and more accurate bridge wire fatigue testing is achieved, which enhances safety.

CN115326610BActive Publication Date: 2025-04-01THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD
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Patent Information

Application Number
CN202211106839.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-09-13
Publication Date
2025-04-01
Estimated Expiration
2042-09-13

AI Technical Summary

Technical Problem

The existing micro-moving fatigue tests cannot perform adaptability tests based on the use scenarios and environmental changes of the bridge wire, resulting in inaccurate test results, posing safety hazards to the use of bridges.

Method used

A high-frequency fatigue tester micro-corrosion auxiliary friction device is designed, including a test machine bench plate, an environmental simulation box, loading wire, pressure assembly and contact assembly. Different environmental conditions are simulated through the environmental simulation box, and the test wire and the loaded wire are tested using pressure components and contact components, and the contact position is adjusted to simulate the vibration bending and cross angle conditions in actual use.

Benefits of technology

It improves the test accuracy and can more accurately simulate the use of bridge wires in different environments, reduces the inaccuracy of test results, and enhances the safety of bridge use.

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Abstract

The invention discloses a technical field of steel wire fatigue testing, specifically a micro-motion corrosion auxiliary friction device and a testing method for a high-frequency fatigue testing machine, comprising a testing machine table, an environmental simulation box, a loading steel wire, two pressure components and a contact component. A support frame is horizontally arranged at the upper end of the testing machine table. By arranging a support frame at the upper end of a traditional micro-motion fatigue testing device, and then arranging an environmental simulation box for sleeved loading steel wire at the upper end of the support frame, an environmental simulation test is performed on the loading steel wire for bridge testing, and then a contact test is performed on the test steel wire and the loading steel wire under the cooperation of the pressure component and the contact component. The invention has high adjustment accuracy and is easy to use. In addition, under the action of the adjustment component, the contact position of the test steel wire and the loading steel wire can be conveniently changed, thereby simulating the vibration bending and crossing angle of the loading steel wire that may exist in actual use. The test accuracy is high and the structure is safe and reliable.
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