Sample fixing device for high temperature tribometer

Abstract

The invention discloses a sample fixing device for a high temperature tribometer. The sample fixing device comprises a base and a plurality of fixing devices arranged on the base, wherein a plurality of fixing grooves and a plurality of fixing holes are symmetrically formed in the upper part of the base; a limiting groove is formed in each fixing groove; each fixing device is arranged on one fixing groove; each fixing device comprises a long nut, a V-shaped fixing part, a square fixing part and a large bolt; each V-shaped fixing part and the corresponding square fixing part are arranged on the corresponding long nut; each large bolt is arranged at the end part of the corresponding long nut; the plurality of V-shaped fixing parts are used for clamping circular samples; the fixing grooves and the limiting grooves are used for limiting the V-shaped fixing parts and the square fixing parts; each V-shaped fixing part consists of a fixing block, a connecting body and a limiting boss; each limiting boss is matched with the corresponding limiting groove; each connecting body is matched with the corresponding fixing groove. The sample fixing device disclosed by the invention is simple in operation and wide in application range; the experiment efficiency can be substantially improved.

Description

technical field [0001] The invention relates to a fixing device, in particular to a sample fixing device of a high-temperature friction and wear testing machine, and belongs to the technical field of high-temperature friction and wear testing. Background technique [0002] At present, the existing high-temperature friction and wear testing machine needs to process and locate the sample before the test. Generally, two small holes are drilled on the bottom surface of the sample and fixed by two positioning pins on the lower sub-disk of the testing machine. The size and size of the sample are limited, but the experimental materials are very complex, some materials are difficult to process, and some materials have uncertain properties. When drilling, problems such as cracking may occur. At the same time, the preparation of the sample The cumbersomeness also increases the difficulty of the experiment. Contents of the invention [0003] The main purpose of the present invention...

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Problems solved by technology

[0002] At present, the existing high-temperature friction and wear testing machine needs to process and locate the sample before the test. Generally, two small holes are drilled on the bottom surface of the sample and fixed by two positioning pins on the lower sub-disk of the testing machine. The size and size of the sample are limited, but the experimental materials are very complex, some materials are difficult to process, and some materials have uncertain properties. When drilling, problems such as cracking may occur. At the same time, the preparation of the sample The cumbersomeness also increases the difficulty of the experiment

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