Quantitative test device and method for wear resistance of material under heavy load pressure condition

Abstract

The invention discloses a quantitative test device and method for the wear resistance of a material under a heavy load pressure condition. The device comprises a rotating table body; a sample rotatingchuck fixedly provided with a plurality of test sample pins is engaged with the lower part of the rotating shaft of the rotating table body through a gear; the bottoms of the test sample pins contactwith a grinding rock disk; the grinding rock disk is arranged in a grinding rock chuck; a pressure sensor is installed between the grinding rock chuck and the grinding rock disk; the grinding rock chuck is fixed at the upper part of a 10-to-100kN hydraulic device which can move vertically; during a test, the 10-to-100kN hydraulic device moves upwards so as to provide pressure load to the test sample pins; a system automatic control device, with pressure values measured in real time adopted as input signals, controls the movement of the 10-to-100kN hydraulic device and the rotation speed of the rotating shaft of the rotating table body; and therefore, the wear resistance of materials such as the cutters of excavating equipment in shield, drilling and mining fields under heavy load conditions can be effectively evaluated.

Description

technical field [0001] The invention relates to a quantitative test device and method for wear resistance of cutting tool materials of excavation equipment in the field of shield tunneling, drilling and mining under heavy load and pressure conditions. technical background [0002] In the fields of shield tunneling, drilling and mining machinery, the cutting tools of tunneling equipment rub against hard rock under extremely high pressure loads. Severe wear caused by high stress friction is an important form of tool failure under such working conditions. At present, conventional cutting tools generally have a short service life due to severe wear when digging high-hardness rock (limestone, volcanic rock, etc.) formations, and the cutting tools need to be replaced frequently. Frequent tool replacement will not only increase the operating cost, but also significantly reduce the excavation efficiency and delay the construction period. Developing new tool materials to adapt to hi...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the current commercial friction and wear equipment has a low load and stress level, and it is difficult to effectively evaluate the wear resistance of cutting tools in shield tunneling, drilling, and mining fields, and to provide a material under heavy load and pressure conditions. Quantitative test device and method for abrasion resistance

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