Processing equipment for reshaping rail head profiles

Abstract

The invention provides processing equipment for a re-forming rail head contour. The processing equipment for the re-forming rail head contour comprises a supporting substrate, a first movable guide rail is installed on the supporting substrate, the first movable guide rail is connected with a Y-direction movable base, a Y-direction guide rail is installed on the Y-direction movable base, the Y-direction guide rail is connected with a lifting mechanism, a Z-direction movable base is installed on the outer side of the lifting mechanism, a Z-direction guide rail is installed on the outer side of the Z-direction movable base, the Z-direction guide rail is connected with a main milling unit, a milling component is installed at the lower portion of the main milling unit, a Y-direction guiding device is also installed at the lower portion of the main milling unit, and the processing equipment for the re-forming rail head contour is installed in a running device. A cutting pressure angle does not exist in the processing equipment for the re-forming rail head contour, two milling cutter discs transmit in a meshing mode to achieve rail head contour re-forming, stress is uniform in the forming process, and the forming precision is high.

Description

technical field [0001] The present invention relates to a milling cutter for reshaping the rail head profile of a rail by means of a milling cutter engaged in at least one operation and to a device for carrying out the method described above. Background technique [0002] As an infinitely long beam supported on a continuous elastic foundation, the rail mainly bears the concentrated vertical load from the locomotive and produces a certain bending moment on its section. The rail includes the rail head, rail waist and rail bottom. As the operation time increases, various diseases will occur at the contact point with the vehicle tread, such as corrugation, flash, uneven joints, etc., which will affect the comfort of the running train and accelerate the loss of the rail. Therefore, it is necessary to repair the rail The reshaping process of the rail profile achieves the purpose of prolonging the service life of the rail, improving the comfort of the running train, and reducing th...

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Problems solved by technology

[0003] The invention patent with the notification number CN 1296561C discloses a method and corresponding equipment for reshaping at least one wheel-rail contact surface of a rail. Longitudinal more than five, preferably nine milling paths, in order to produce the rail-wheel-rail contact surface, preferably the bulge of the rail head cross-section in one circumferential grinding step, has the disadvantage that the use of circumferential climb milling When machining the profile of the rail head, there is a problem of cutting pressure angle, which affects the accuracy of the longitudinal smoothness of the rail, and paradoxically, if the accuracy of the longitudinal smoothness of the rail needs to be improved, the diameter of the milling disc must be increased, which leads to complex milling power and the structure of the corresponding running equipment , increase the cutting cost, and the maintenance cost of complex equipment is also high; in addition, since there are more than five, preferably nine, milling tracks in the longitudinal direction of the rail, the milling tracks need to be polished after the circumferential milling of the rail head, especially for high-speed For railway lines, this kind of grinding is essential. Only the polished rails can reduce the running noise and meet the operation requirements of high-speed railway lines. However, due to the large number of tracks that need to be polished, the grinding cost is high

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