Grinding device and method for profiled full-section of rail weld with five grinding heads

Abstract

The invention relates to a rail welding seam five-grinding-head profiling full-section grinding device and a grinding method, which are characterized in that two sets of rail head grinding mechanisms, two sets of rail waist grinding mechanisms, and one set of rail bottom grinding mechanisms respectively pass The fixed frame of the power slide table is integrated and fixed on the basic sliding table device, so that the grinding head assembly of the rail head grinding mechanism is offset against the part of the rail head to be polished, the grinding head assembly of the rail waist grinding mechanism is offset against the part of the rail waist to be polished, and the rail bottom The grinding head assembly of the grinding mechanism is offset against the part of the rail bottom to be polished. The basic sliding table device is controlled and connected by the basic sliding table feeding mechanism and installed on the basic plate assembly. Laser positioning and detection devices are also installed at the front and rear of each grinding head. The positioning detection device is connected to the control device through the signal line, and the control device controls the feeding mechanism of the slide table connected to the foundation. The invention has the advantages of long service life, high degree of automation, strong operability, less labor required, light environmental pollution, and little possibility of personal injury to workers.

Description

[technical field]

[0001] The invention relates to the technical field of construction and maintenance of railway track engineering, in particular to a five-grinding head profiling full-section grinding device and grinding method for rail rail welds of light rails, subways and other rail transits. [Background technique]

[0002] Rail welding is a major key technology to achieve high-speed railway and seamless track, and the quality of welded joints directly affects the service life of the line and the safety of train operation. The quality of welded joints not only includes the intrinsic welding quality of the weld (such as whether there are welding defects inside), but more importantly, it also includes the surface quality of the weld in the joint area, such as the grinding quality of the rail head, rail waist, rail bottom, etc. The local stress concentration caused by the uneven surface will greatly shorten the fatigue life of the rail and directly affect the running speed ...

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