Portable rock mechanical experiment sample grinding machine

Abstract

The invention discloses a portable rock mechanical experiment sample grinding machine. The machine comprises a fixed frame, a sample fastening mechanism, a sample grinding mechanism and a sample waterspraying mechanism, wherein the fixed frame comprises a base, a fixed cylinder and a rocking handle supporting part; the base adopts a wedge structure with the inclined top surface; the bottom of thefixed cylinder is fixedly connected with the top of the base; the rocker handle supporting part is mounted at the top of the fixed cylinder; a water inlet is formed in one side of the upper part of the fixed cylinder; a water outlet is formed in the bottom of the fixed cylinder; a scale groove is formed in the fixed cylinder; the sample fastening mechanism comprises a clamp and clamp fasteners; the clamp is mounted in the lower part of the fixed cylinder; the clamp is composed of two semicircular clamping plates; the two clamp fasteners are arranged on the two clamping plates respectively; the sample grinding mechanism is mounted on the rocking handle supporting part; and the sample water spraying mechanism is mounted at the water inlet. A small-sized to-be-ground sample can be easily fixed; the sample grinding speed can be flexibly adjusted; the end part of the sample can be quickly ground flat; the size of the sample can be more conveniently controlled; and the machine is simple instructure, small in size and easy to operate.

Description

technical field [0001] The invention belongs to the technical field of rock mechanics experiments, and in particular relates to a portable sample grinding machine for rock mechanics experiments. Background technique [0002] The rock mechanics experiment is a basic experiment in geology and mining and related disciplines, and plays an important role in guiding the safety production of geology and mining projects. It is to obtain the compressive strength, tensile strength, shear strength, etc. The important way of mechanical performance parameters can provide theoretical reference for tunnel (slope) construction, mine shaft layout and support, mineral mining methods, etc. In rock mechanics experiments, in order to weaken the effect of size effect, samples are often processed according to certain specification requirements. Sample preparation needs to go through three major processes of drilling core, cutting and grinding samples. Different mechanical property test experiments...

AI Technical Summary

Problems solved by technology

The size of the current prototype grinding machine is large, and the abrasive on the grinding wheel is mainly concentrated on the edge of the grinding wheel. If the operation is improper, it is easy to cause the abrasive to fall off and damage the grinding wheel. The price of the grinding wheel is often high, which increases the cost of later use. , the length of the compression and shear test pieces is generally in the range of 50mm to 100mm, which can be fixed better, and the grinding sample is also relatively easy; the length of the tensile test piece is about 25mm, and the test piece is short and difficult to fix. The grinding wheel and the fixed test piece The small distance between the devices increases the restriction factors of the sample grinding process, and the sample grinding time is long

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