Numerical control fine grinding machine for rail contours and rail lines

Abstract

The invention discloses a numerical control fine grinding machine for rail contours and rail lines. The numerical control fine grinding machine comprises walking and shape-keeping assemblies, a walking and shape-keeping device, a traversing device and a grinding device, wherein the plurality of walking and shape-keeping assemblies are separately arranged on the left and right sides of the walkingand shape-keeping device and used for moving along steel rails; the traversing device comprises a grinding support frame, driven connectors and driven wheels; and the grinding device comprises a sliding block assembly, a first motor, a first reducer, a first gear, a sliding groove assembly, a vertical rack, a second motor, a second reducer, a second gear, a main motor and a grinding wheel. The numerical control fine grinding machine for the rail contours and the rail lines allows the walking and shape-keeping assemblies and a self-powered walking and shape-keeping assembly to move along the steel rails by arranging connection support frames, the walking and shape-keeping assemblies and the self-powered walking and shape-keeping assembly at the walking and shape-keeping device, and drives the grinding wheel to move to the to-be-ground position of the steel rails for grinding by arranging the sliding block assembly and the driven wheels at the traversing device, so as to realize the finegrinding of any position of the rail contours of the steel rails and to facilitate the operation.

Description

technical field [0001] The invention relates to the field of fine grinding machines, in particular to a numerically controlled fine grinding machine for track profile. Background technique [0002] Due to the dynamic effect of the train, as well as the natural environment and the quality of the rail itself, the rail is often damaged, such as cross-section wear, wave wear (abbreviated as "wave wear"), etc., which further deteriorates the condition of the wheel-rail contact surface. Resulting in reduced rail life, increased maintenance workload, and increased maintenance costs. [0003] Rail corrugation is one of the main causes of noise and changes in wheel-rail interaction force. Especially in recent years, with the rapid development of high-speed and heavy-duty rail transit, rail corrugation and impact have become increasingly serious, which not only aggravates the damage of track structural components and the deterioration of track conditions, but also seriously affects t...

AI Technical Summary

Problems solved by technology

[0010] However, small profiling grinders have the following common disadvantages:

[0011] One is that the parts of the turnout cannot be polished; the other is that the experience requirements for the operator are relatively high

The reason is that during the grinding process, the grinding depth, angle, and direction are all controlled by the operator. In particular, it is difficult to maintain a straight line in the grinding direction, resulting in a wide and narrow light band after grinding, and the direction also turns left and right. The effect of grinding cannot eliminate the unevenness of train operation, resulting in futile

Images