Longitudinal grinding machine for welding rail welding seam

Abstract

The invention discloses a longitudinal grinding machine for welding a rail welding seam. The machine comprises a grinding machine main body, a running and driving device and a frame, wherein the grinding machine main body is divided into an upper grinding wheel head area and a lower grinding wheel head; the upper grinding wheel head area comprises an oscillation motor A, a grinding wheel head motor A, a transverse motion mechanism A, a transverse fine tuning mechanism A, a lift fine tuning motion mechanism A, a longitudinal motion mechanism A, a longitudinal fine tuning mechanism A and a grinding wheel head component A; and the lower grinding wheel head area comprises an oscillation motor B, a grinding wheel head motor B, a transverse motion mechanism B, a transverse fine tuning mechanism B, a lift fine tuning motion mechanism B, a longitudinal motion mechanism B, a longitudinal fine tuning mechanism B and a grinding wheel head component B. The longitudinal grinding machine has the advantages that the mobile grinding machine performs one-time longitudinal grinding on the welded rail head and the welding seam at the bottom of the rail by adopting a machine tool, so the problems of grinding quality and accuracy of the railway welded rail can be effectively solved, the moving route can be determined according to a variation range of the welding rail seams on the welding rail production line, and longitudinal fine tuning can be carried out so as to meet the requirement of application in production lines.

Description

technical field [0001] The invention relates to a rail welding seam grinding machine tool, in particular to a welding rail welding seam longitudinal grinding machine tool for high-speed railway seamless rail welding and ordinary seamless rail welding seam welding. Background technique [0002] At present, the welding seams of welded rails are mostly polished by manual hand grinding wheels on the top surface and side of the rail head, and the weld seams on the bottom surface of the rail. It is very easy to wear the rails, the grinding quality is not high, and the work efficiency is extremely low. It cannot meet the grinding requirements of railway rails, especially the high-speed railway (350 km / h and above) rail grinding quality requirements. At the same time, it cannot effectively adjust the grinding process and control the grinding accuracy, and the labor intensity of workers is extremely high. , can not meet the requirements of production efficiency. And now to the weld ...

AI Technical Summary

Problems solved by technology

[0002] At present, the welding seams of welded rails are mostly polished by manual hand grinding wheels on the top surface and side of the rail head, and the weld seams on the bottom surface of the rail. It is very easy to wear the rails, the grinding quality is not high, and the work efficiency is extremely low. It cannot meet the grinding requirements of railway rails, especially the high-speed railway (350 km / h and above) rail grinding quality requirements. At the same time, it cannot effectively adjust the grinding process and control the grinding accuracy, and the labor intensity of workers is extremely high. , can not meet the requirements of production efficiency

And now to the weld seam of welded rail head, what have adopts manual hand grinding wheel to carry out rough grinding to the rail top surface and rail side of welded rail head weld seam, very easy to wear base metal, easily cause welding rail breakage, sometimes In this way, the grinding accuracy and quality of the welded rail head welds cannot be effectively controlled, which brings safety hazards to railway transportation, especially high-speed railway transportation.

Now, some of the grinding of the bottom of the rail uses manual hand grinding wheels to grind the rail welds, and some use a grinding wheel frame, and use a bowl-shaped grinding wheel for horizontal rough grinding, so that the welded rail welds that are ground will naturally produce horizontal grinding. The wear marks can easily cause transverse fracture cracks, cause welded rails to break, and also easily wear down the rails. The worn-out welded rails will also cause fractures, which will bring serious transportation safety hazards. Running vertically, it is extremely inconvenient to use on the production line

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