Inspection and evaluation system for track geometric irregularity
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A technology for evaluating systems and tracks, applied in railway vehicle shape measuring instruments, railway car body parts, railway auxiliary equipment, etc. The effect of improving efficiency and improving detection accuracy
Active Publication Date: 2015-10-28
HARBIN INST OF TECH
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[0004] The purpose of the present invention is to provide a detection and evaluation system for track geometric irregularities, to solve the problem that in the field of rail transit, the rail inspection vehicle needs manpower to carry out the detection, the detection efficiency is low, and the detection results are affected by human beings and are inaccurate; comprehensively The detection vehicle is expensive and often requires closed lines during detection, which affects the normal traffic operation. At the same time, the change of the detection result caused by the looseness of the detection beam of the rail inspection vehicle or the comprehensive detection vehicle itself is often not easy to be detected, resulting in distortion of the detection results. question
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specific Embodiment approach 1
[0024] Specific implementation mode one: combine figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 with Image 6 Describe this embodiment, this embodiment comprises the locomotive 1 that moves independently on the track to be tested, the excitation system 2 that is arranged in locomotive 1, control system 3, signal acquisition system 4, navigation system 5 and signal processing system 6;
[0025] The vibration excitation system 2 is used to apply continuous vibration excitation to the running locomotive 1, and transmit the vibration excitation to the track to be detected through the locomotive 1;
[0026] The control system 3 is used to control the coordinated work of the entire detection system. By controlling the running speed of the locomotive 1, the excitation frequency and the excitation amplitude of the vibration excitation system 2, the wheel rails of the locomotive 1 and the track to be detected are stay in contact at all times;
[0027] The signal acquisit...
specific Embodiment approach 2
[0033] Specific implementation mode two: combination figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 This embodiment is described. In this embodiment, the locomotive 1 runs at a predetermined speed on the track to be tested or the locomotive 1 is driven by a tractor. The wheel-rail distance of the locomotive 1 can be adjusted according to the type of track to be tested. Other structures and connections are the same as those in the first embodiment.
specific Embodiment approach 3
[0034] Specific implementation mode three: combination figure 1 with figure 2 This embodiment is described. In this embodiment, the vibration excitation system 2 is arranged on the chassis of the locomotive 1 and is located on the central axis of the chassis. The excitation end of the vibration excitation system 2 is connected to the chassis of the locomotive 1 . Other structures and connections are the same as those in the second embodiment.
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Abstract
The invention discloses an inspection and evaluation system for the track geometric irregularity, relates to an inspection and evaluation system, and solves the problems that the inspection efficiency is low and inspection results are inaccurate due to manual influence as a track inspection car is required to be pushed by manpower for inspection in the field of track traffic. A comprehensive inspection vehicle has the problems that the construction cost is expensive, and lines are required to be closed frequently to influence the normal traffic operation; in addition, the inspection result variation caused by looseness of an inspection beam of the track inspection car or the comprehensive inspection vehicle is not easy to find out frequently, and as a result, the problem of inspection result distortion is caused. The inspection and evaluation system comprises a locomotive independently running on a track, as well as an excitation system, a control system, signal acquisition systems, a navigation system, a signal processing system and an energy supply system all placed inside the locomotive. According to the invention, the static irregularity can be obtained without manual measurement, so that plenty of manpower and material resources are saved, and the inspection efficiency and inspection precision are effectively improved. The inspection and evaluation system is used for inspection of the track geometric irregularity.
Description
technical field [0001] The invention specifically relates to a detection and evaluation system for geometric irregularity of a track, which belongs to the field of basic detection equipment and detection technology of rail transit. Background technique [0002] As a mode of transportation, rail transit is the lifeblood of economic and social development of countries and regions. At present, my country has become the country with the longest operating mileage, the fastest operating speed and the largest construction scale of high-speed railway in the world. In recent years, with the vigorous promotion of the Chinese government, high-speed railway has become a business card of Chinese manufacturing. At the same time, the global demand for high-speed railways and intercity rail transit is also increasing, and the strategic concept of "One Belt, One Road" is also slowly unfolding through international rail transit. The continuous expansion of the rail transit market has accele...
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