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Test bench for fretting abrasion of double-strand aluminum lead

A technology of fretting wear and aluminum wires, applied in the direction of applying repetitive force/pulsation force to test material strength, test wear resistance, etc., can solve problems such as not seen, and achieve the effect of reducing the impact of friction

Inactive Publication Date: 2011-09-07
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no relevant information on the device used for fretting test

Method used

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  • Test bench for fretting abrasion of double-strand aluminum lead
  • Test bench for fretting abrasion of double-strand aluminum lead
  • Test bench for fretting abrasion of double-strand aluminum lead

Examples

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Embodiment Construction

[0035] A double-strand aluminum wire fretting wear test bench, including a seat plate 5, a plurality of slots are arranged on the seat plate 5, a first lead frame 1, a second lead frame 2, a third lead frame 6 and a fourth lead frame 7 is installed on the seat plate 5 through slot holes, and the distance between the first wire 11 and the second wire 12 can be changed by changing the positions of the first wire frame 1, the second wire frame 2, the third wire frame 6 and the fourth wire frame 7. angle of wrapping. The first lead frame 1 and the second lead frame 2 are mounted on the seat plate 5 in pairs, and in order to obtain an inclination angle, the heights of the two are usually different. The first lead frame 1 and the second lead frame 2 are provided with a swivel joint 4, and one end of the swivel joint 4 is provided with a threaded joint 17, and one end of the swivel joint 4 is cylindrical, and is connected with the lead frame by threads, so that it can be adapted to ...

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Abstract

The invention relates to a test bench for fretting abrasion of a double-strand aluminum lead, and the test bench comprises a base plate, wherein a first lead frame and a second lead frame are arranged on the base plate in pair; a third lead frame and a fourth lead frame are arranged on the base plate in pair; a sliding slot is arranged at one sides of the third and fourth lead frames; one end of a sliding block in the sliding slot is connected to a holding device while the other end is connected to a connecting rod; and the connecting rod is connected to an eccentric block. The test bench canbe used for truly simulating the fretting abrasion between external aluminum leads of an overhead transmission line under various working conditions (such as fretting amplitude, frequency, load, leadincluded angle, wrap angle, and the like), thereby analyzing the fretting characteristics of the lead under the conditions, supplying a method for improving the fretting abrasion, reducing the abrasion between the leads and prolonging the service life of the overhead transmission line. The test bench provided by the invention plays an important role in researching the fretting abrasion between the leads.

Description

technical field [0001] The invention relates to a test device, in particular to a fretting wear test bench for a double-strand aluminum wire. Background technique [0002] Fretting (Fretting) is a very small relative motion between two contact surfaces, which usually exists in the " In mechanical fittings that are "approximately fastened", the displacement amplitude is generally on the order of microns. Fretting tribology is a discipline that studies the operating mechanism, damage, testing, monitoring, and prevention under fretting state, involving materials, mechanics, surface physics, chemistry and other fields. [0003] The wire is the carrier of the transmission line and an important part to ensure the safe operation of the power system. Aerial conductors are made of aluminum wires or aluminum and steel wires that are layered and coaxially stranded. They have been exposed to the open air for a long time, and are affected by natural conditions such as wind, rain, ice, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/38G01N3/56
Inventor 赵新泽周权
Owner CHINA THREE GORGES UNIV
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