End face grinding device for rock testing specimen

Abstract

The invention relates to a device for grinding the end surface of a rock detection test piece, which effectively solves the problem of easy hand injury and relatively large dust during grinding; the technical solution is to include a casing, a turntable is installed in the casing, and a vertical bar is installed on the turntable, and the vertical bar runs through the There is a horizontal push rod, and the inner end of the push rod is fixed with an arc-shaped plate, and the position of the push rod can be fixed; the upper end of the shell is equipped with a sleeve that is reversed in the same direction as the turntable, and the inside of the sleeve is equipped with a The moving guide rod, the rotation of the sleeve drives the guide rod to rotate; the lower end of the guide rod is installed with a grinding assembly; the grinding assembly includes a bottom plate, the front and rear sides of the bottom plate have side plates, and the driving roller and the roller shaft are installed between the front and rear side plates , the gear shaft is connected between the two side plates, and there is a gear rack on the side of the sleeve that engages with the gear on the gear shaft; the upward movement of the guide rod can drive the driving roller to rotate through the gear shaft, so that the sandpaper is wound on the driving roller; The invention can achieve grinding and replacement of sandpaper by pressing, and can collect generated dust.

Description

technical field [0001] The invention relates to the field of rock detection, in particular to a grinding device for the end face of a rock detection test piece. Background technique [0002] The uniaxial compressive strength of the stone is the determination of the uniaxial compressive strength of the stone in the saturated state, which is used for the strength classification and lithology description of the rock. Generally, the rock specimen is a 50mm cube or a cylinder with a diameter and a height of 50mm; in order to make the rock force stable, the upper and lower end surfaces of the specimen should be parallel and smooth, and the flatness tolerance of the end surface of the specimen should be less than 0.05mm. After the test piece is cut with a stone cutter, it needs to be polished due to insufficient flatness. The traditional grinding assembly 8 is usually directly polished after fixing the test piece, and there are mainly the following problems: 1. The parallelism of ...

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Problems solved by technology

[0003] In view of the above situation, in order to solve the problems existing in the prior art, the purpose of the present invention is to provide a rock detection test piece end face grinding device, which can effectively solve the problems of easy hand injury and relatively large dust when grinding.

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