Grinding machine for steel rail welding seam of high-speed railway

Abstract

The invention discloses a grinding machine for a steel rail welding seam of a high-speed railway, which comprises a machine body (1), a longitudinal moving carriage (2), a transverse feeding carriage (3), a clamping device (4), trimming devices (5) and grinding heads, wherein the machine body (1) is arranged on the foundation of a travelling rail (6); the longitudinal moving carriage (2) is arranged on a V-flat guide rail of the machine body (1); the longitudinal moving carriage (2) is provided with the transverse feeding carriage (3) and the three groups of grinding heads; the three groups of grinding heads are respectively rail waist curve grinding heads (7) arranged at the two sides of a steel rail, rail foot 1: 9 inclined plane grinding heads (8) and rail foot side grinding heads (9); and the trimming devices (5) are respectively arranged on stand columns of the 1: 9 inclined plane grinding heads (8). After being ground by the grinding machine, the steel rail welding seam of the high-speed railway is flat and smooth in surface and has a shape being coincided with that of a base body; and the corresponding grinding heads which are arranged at the two sides of the steel rail are used for grinding at the same time, so that the grinding efficiency is improved.

Description

technical field [0001] The invention relates to a grinder, in particular to a special grinder for high-speed railway rail weld seam numerical control automatic forming grinding. Background technique [0002] With the rapid development of the national economy, all provinces in the country have accelerated the construction of high-speed railways. The track of the high-speed railway is made up of seamless steel rails. The length of the steel rails produced by the steel factory is 100 meters, so it is necessary to weld multiple pieces of steel rails into a long steel rail of 500-600 meters. The rails are welded by high-frequency butt welding on the welding production line. After welding, a weld seam about 2mm in height and 20mm in width will be left. For the purpose of smooth train operation, reducing welding stress, positioning, and flaw detection, the weld seam must be ground. At present, the grinding of the weld seam of the rail waist in China is done manually with a hand-he...

AI Technical Summary

Problems solved by technology

At present, the grinding of the weld seam of the rail waist in China is done manually with a hand-held grinder. This traditional grinding method is inefficient, and the weld seam is uneven and uneven in height after grinding.

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