Spraying system and abrasion test bench

Abstract

The invention relates to a spraying system and an abrasion test bench, the spraying system comprises a spraying protective cover and a water tank, the top and the bottom of the spraying protective cover are respectively provided with a water inlet and a water outlet, and the water tank provides spraying water for the spraying protective cover; the abrasion test bed comprises a frame, a linear reciprocating motion mechanism, a guide seat, a guide rod, an abrasion rock sample seat, an abrasion rod, an abrasion rotation power system, a force sensor and the spraying system, and the guide seat is driven by the linear reciprocating motion mechanism to slide back and forth under the guide of the guide rod. The abrasion rod is driven by the abrasion rotating power system to keep a friction sliding state with the abrasion rock sample, and the front end and the rear end of the spraying protective cover are connected with the abrasion rock sample seat and the abrasion rotating power system and are sealed with the abrasion rock sample seat and the abrasion rotating power system. According to the test bed, the wear life of the cutting pick can be simulated, reference can be provided for optimization of motion parameters in actual cutting, and the test bed is compact in structure and low in investment.

Description

Technical field [0001] The invention relates to a test bed for abrasion test, which aims at studying the abrasion problem in the process of rock cutting, and a spraying system suitable for the test bed. technical background [0002] Abrasion is a prominent problem when cutting hard materials such as rocks. Under the action of large cutting force, cutting picks will wear out quickly. The existing standard abrasion test-bed uses a needle-shaped thin rod to rub and slide relative to the rock sample under a small positive pressure. The parameters such as positive pressure and relative sliding speed are customized according to a unified standard. The abrasion degree of the needle tip is used to judge the rock's abrasion, and then the abrasion grade of the rock is obtained artificially. It doesn't involve the wear life simulation of the pick, and it doesn't have the function of spray cooling simulation. Inventive content [0003] The invention aims to provide a spray system and an abr...

AI Technical Summary

Problems solved by technology

[0002] A prominent problem when cutting hard materials such as rocks is abrasiveness. Under the action of large cutting force, the pick will wear out quickly

The existing standard abrasion test bench uses a needle-shaped thin rod to rub and slide against the rock sample under a small positive pressure. The parameters such as normal pressure and relative sliding speed are customized according to the unified standard. Abrasiveness is artificially graded and evaluated, and then the abrasive grade of the rock is obtained, which does not involve the wear life simulation of the pick, and there is no spray cooling simulation function

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