Optimization method for topography of soldering diamond-impregnated grinding wheel of high-speed railway track plate

Abstract

The invention belongs to the field of manufacturing a high-speed railway track plate grinding wheel, in particular to an optimization method for topography of a soldering diamond-impregnated grinding wheel of a high-speed railway track plate. The optimization method comprises the steps: according to the mechanism of removing materials by the diamond of the revolving grinding wheel, carrying out mathematical analysis on the grinding process of single-layer diamond-soldered grinding wheel by combining grinding parameters so as to determine the optimal abrasive topography on the surface of the grinding wheel; adopting segmental distribution to the abrasive on the surface of the grinding wheel, wherein the optimal number of segments is larger than or equal to 65, the width of a chip groove of each segment is larger than 7.2mm, and the optimal area of the included angle between the each segment material distribution area and the vertical plane ranges from 55 degrees to 65 degrees. The optimization method determines the optimal topography of the soldering diamond-impregnated grinding wheel of the high-speed railway track plate, thereby playing optimal grinding performance of the soldering diamond-impregnated grinding wheel.

Description

technical field [0001] The invention belongs to the field of high-speed rail track plate grinding wheel manufacturing, and relates to a topography optimization method for high-speed rail track plate brazing diamond grinding wheels, which is suitable for abrasive arrangement and optimization of single-layer brazing superhard abrasive rotary tools. Background technique [0002] my country is currently vigorously developing high-speed railways, and the current speed has reached 350 kilometers per hour. In order to ensure the smoothness, stability and safety of the track lines, the steel rails of my country's high-speed railways are not laid on ordinary sleepers, but on track slabs that have been precisely polished by machine tools - Borg slabs. The Bourg board was invented by the German Bourg company, and all high-speed railway technology in my country adopts this ballastless track structure type Bourg board. It is a high-strength, high-density concrete rail platform with a le...

AI Technical Summary

Problems solved by technology

Most of the Bourg plate grinding wheels produced by the existing manufacturers in the market are segmented, but the number of segments, the width of the flute, and the inclination and inclination direction of each cloth area are different, which also causes the Bourg plate Grinding wheels have different grinding performance even with the same manufacturing process. Most manufacturers make limited improvements based on production experience and feedback from use information, without systematic theoretical guidance, so the performance improvement of grinding wheels is quite limited.

Images