Rail grinding machine

Abstract

The invention relates to the field of mechanical equipment for use in rail maintenance, in particular to a rail grinding machine. The rail grinding machine comprises a fixed base, a grinding motor, a grinding head, a horizontal driving unit, a grinding head swinging driving unit, a frame and a feeding driving unit, wherein the feeding driving unit can be used for driving the grinding motor to move along the axis of the motor; the feeding driving unit is arranged on the frame through a shaft; the grinding head swinging driving unit can be used for driving the feeding driving unit to swing axially on the frame; the frame is connected to the horizontal driving unit; the horizontal driving unit is connected with the fixed base; the horizontal driving unit can be used for driving the frame to move horizontally. By adopting the rail grinding machine disclosed by the invention, multi-degree-of-freedom motion of the grinding head is realized, profile grinding can be realized on a steel rail during grinding, and the grinding effect is enhanced; a linear guide rail on which the motor is arranged is fixed on a driving box, and meanwhile the linear guide rail is arranged on the side face of a feeding servo motor to form an eccentric structure, so that the problems of mechane failure and poor grinding effect caused by vibration are solved.

Description

technical field [0001] The invention relates to the field of mechanical equipment for track maintenance, in particular to a track surface grinding equipment. Background technique [0002] With the development of high-speed and heavy-duty railways, rails will have defects such as fatigue cracks, fat edges and wave wear, which will affect the stability and safety of railway vehicles. At the same time, the above defects will accelerate rail failure and bring greater economic loss. Preventive and remedial maintenance of rails is a necessary measure to prolong rail life, improve comfort, economy and safety. At present, rail repair methods mainly include grinding, planing, milling, and manual grinding. Among them, the use of efficient grinding machines to repair rails is the most common. [0003] At present, there are various kinds of small grinding machines in China, most of which are manually controlled. The grinding head is driven by gasoline internal combustion engine or ele...

AI Technical Summary

Problems solved by technology

[0003] At present, there are various kinds of small grinding machines in China, most of which are manually controlled, and the grinding head is driven by gasoline internal combustion engine or electric drive, which is extremely efficient It is low and can only be used for small-scale and small-scale track repair work. In terms of profiling technology, mechanical rollers and rail surfaces are used on the original track (this rail surface is not a standard rail surface, but a defective rail surface) ) contact profiling, plus manual adjustment of the grinding amount, the grinding surface cannot be standardized, standard, and there are many human factors

[0004] The country has also introduced foreign hydraulically driven grinding locomotives, which have greatly improved the grinding efficiency, but the profiling technology on the rail surface has certain defects. It is Hydraulic pressure is used to press the grinding head to the track to maintain a certain pressure between the grinding wheel and the track to ensure the grinding force, but the wear homogenization effect on the guide rail to the wave is weak, that is, there is still cutting at the trough, and secondly, the rail surface The profiling is also achieved through hydraulic pressure, so the grinding surface cannot be standardized and standard

For example, in Chinese patent application 201410163683.2, a rail grinding vehicle is disclosed. The rail grinding machine is hoisted on the grinding vehicle, and the lifting hydraulic cylinder is used to realize the compression of the grinding head, which does not have the function of profiling grinding

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