Sliding-rolling combined type soft friction test apparatus

Abstract

The invention relates to a sliding-rolling combined type soft friction test apparatus, which comprises a test bed and a loading mechanism which can rotatably support on the test bed, an upper sample mounting rack is arranged on the test bed, and enables linear movement on a plane, an upper sample is fixed on the upper sample mounting rack; a lower sample is arranged at the lower part of the uppersample, and is rotatably butted with the upper sample through the loading mechanism; a frictional force detection mechanism is arranged on the test bed, and is connected with the loading mechanism; the lower sample is an elastic sample, the hardness of the upper sample is stronger than that of the lower sample; the lower sample is butted with the upper sample through the loading mechanism, when the operation is carried out, the lower sample enables rotary movement, the upper sample enables sliding movement, thereby a sliding-rolling combined type soft friction contact couple is formed. The apparatus of the present invention can be used for simulating a residue distribution rule of a petroleum natural gas pipeline inner wall wax deposition after pipe cleaning operation, and provides basis for raising pipeline cleaning efficiency and soft friction research in the petroleum natural gas industry.

Description

technical field [0001] The invention relates to a test device, in particular to a slip-roll composite soft friction test device for detecting the soft friction behavior, friction coefficient and contact area image of high molecular polymers such as rubber and polyurethane and composite materials. Background technique [0002] Oil and gas pipelines are the main arteries of the national economy. Ensuring the safe operation of oil and gas pipelines and preventing accidents is a major issue related to the national economy and people's livelihood. By the end of 2010, my country had built more than 85,000 kilometers of large-diameter long-distance oil and gas pipelines, including 22,000 kilometers, 45,000 kilometers, and 18,000 kilometers of crude oil, natural gas, and refined oil pipelines, and nearly 4 kilometers of submarine pipelines. [0003] When land pipelines are in low-temperature environments such as swamps, rivers, permafrost regions, and cold weather, especially when ...

AI Technical Summary

Problems solved by technology

At present, although there are many types of tribological testing machines, because most of the pipelines belong to spiral welds, the pigs will spiral forward with the helix of the weld seam, so the known tribological testing machines cannot effectively simulate online, Measuring the friction force when removing wax deposits on the inner wall of the pipeline in oil and gas transmission pipelines and collecting images of the flow and residual distribution of wax deposits in the contact area

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