Rail milling system and railway engineering vehicle
A milling and track technology, which is applied in the field of track milling system and railway engineering vehicles, can solve the problems of poor processing quality and chattering knife, and achieve the effect of improving processing quality, improving stability and avoiding chattering
Pending Publication Date: 2022-01-28
CRCC HIGH TECH EQUIP CORP LTD
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Problems solved by technology
In practice, it has been found that only one set of on-line repairing device with positioning support mechanism will easily cause "chattering knife" when the damping fastener lines with small vertical static stiffness such as rail shock absorbers are operated alone, and the surface of the processed rail will be milled into "Wavy" shape, poor processing quality
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[0022] In order to make the technical solutions and advantages in the embodiments of the present application clearer, the exemplary embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the present application, and Not an exhaustive list of all embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0023] In practical application, it is found that only one set of on-line repair device with positioning support mechanism will easily cause "chatter" when working alone on the damping fastener line with small vertical static stiffness such as rail shock absorber, and the milling of the surface of the rail to be processed Into a "wavy" shape, the processing quality is poor. The main reason for "cutter chatter" is ...
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The embodiment of the invention provides a rail milling system and a railway engineering vehicle, and the rail milling system comprises a milling device used for milling the surface of a rail, a front positioning and supporting device arranged on the longitudinal front side of the milling device and used for downwards pressing a rail on the front side of the milling device, and a rear positioning and supporting device; the longitudinal direction is the same as the rail extension direction; the rear positioning and supporting device is arranged on the longitudinal rear side of the milling device; and the rear positioning and supporting device is used for downwards pressing a rail on the rear side of the milling device. According to the rail milling system and the railway engineering vehicle, double-point supporting is formed on the front side and the rear side of the milling device, the stability of the front point and the rear point of the rail is improved, the rail or the milling device is prevented from vibrating, and the rail machining quality is improved.
Description
technical field [0001] The present application relates to railway maintenance technology, in particular to a track milling system and a railway engineering vehicle. Background technique [0002] In recent years, my country's rail transit has developed rapidly. With the increase of traffic volume and operating speed, the problem of rail surface damage has become more and more prominent. The common damages include rail rolling contact fatigue cracks, corrugation and rail side grinding at the upper end of the curve. If the surface damage of the rail cannot be repaired in time and effectively, it will seriously affect the driving safety and the service life of the rail. [0003] At present, the on-line repairing and processing technologies of rails mainly include rail grinding and rail milling. The rail on-line repairing device that current milling car or rail milling car adopts only has a set of positioning support mechanism at the front part of the milling cutter head. In pr...
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IPC IPC(8): E01B31/13
CPCE01B31/13
Inventor 王磊蔡昌胜高鹏韩双平徐春涛吴鹏坤唐丙松任博强
Owner CRCC HIGH TECH EQUIP CORP LTD