Milling device for repairing rails

Abstract

The invention relates to the technical field of rail repair, in particular to a milling device for repairing rails. The milling device comprises a milling system, a positioning system, a longitudinal feeding system, a machine frame and a transverse feeding system connected with the machine frame, wherein the milling system comprises milling cutter components; milling cutter surfaces of the milling cutter components are contacted with the upper surfaces of the rails; the positioning system comprises positioning shoes; the lower surfaces of the positioning shoes are contacted with the upper surfaces of the rails; the longitudinal feeding system comprises oil cylinders and longitudinal servo feeding devices; the longitudinal servo feeding devices are longitudinally arranged on the milling system; the lower end surfaces of the longitudinal servo feeding devices are contacted with the upper surfaces of the positioning shoes to regulate the pressure exerted on the upper surfaces of the rails by the lower surfaces of the positioning shoes; and the oil cylinders are arranged on the transverse feeding system, and are connected with the milling system to drive the milling system to longitudinally move to regulate the pressure exerted on the upper surfaces of the rails by the milling cutter surfaces of the milling cutter components according to the pressure exerted on the upper surfaces of the rails by the lower surfaces of the positioning shoes to change the feeding depth of the milling cutter components on the rails.

Description

technical field [0001] The invention relates to the technical field of rail repairing, in particular to a milling device for rail repairing. Background technique [0002] At present, high-speed railways, subways and intercity trains are developing at a high speed in my country. The general speed is more than 250km per hour, and the maximum speed even exceeds 350km per hour. Steel rails are the main basis for carrying trains. Such a high train speed will affect the surface of the rails. Strict requirements are put forward for indicators such as smoothness and smoothness, but the wear and disease of the rail are easy to aggravate under the high-speed running state. This double problem makes the repair of the rail defect an important content. Composition forming for grinding, this method can only be used for grinding the less damaged rails, when encountering larger damages, it must be manually ground and then repaired, and the wear of the multi-head grinding wheel is difficult to...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to solve the problem that the existing rail surface repair device has low working efficiency and it is difficult to ensure the grinding accuracy

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