A fast and fine-tuning track inspection instrument for measuring track geometric parameters

Abstract

The invention discloses a rapid fine adjustment rail checking device for rail geometrical parameter measurement. The rapid fine adjustment rail checking device comprises a rapid fine adjustment trolley, wherein a sleeper identifying device, a short beam gauge compensation device, a distance measurement device, a long beam positioning mechanism, an inertia sensor box and a short beam tilt angle sensor are mounted on the rapid fine adjustment trolley; a data acquisition system is connected with a computer; a total station is also connected with the computer; the computer collects the data of the data acquisition system and the total station for analysis and process; the data acquisition system triggers the inertia sensor box, short beam gauge compensation device, distance measurement device, short beam tilt angle sensor, a long beam tilt angle sensor and a long beam gauge sensor through the sleeper identifying device to collect inertia navigation data, title angle and gauge of a sleeper, and high-low compensation data information at each sleeper and send the information to the data acquisition system. The rapid fine adjustment rail checking device greatly reduces the establishment times of the total station, does not require the total station to measure the sleepers one by one, realizes the purpose of long-distance and dynamic measurement, and greatly improves the operation efficiency.

Description

technical field [0001] The invention relates to a fast and fine-tuning track inspection instrument for measuring track geometric parameters. Background technique [0002] With the rapid development of high-speed rail, there are higher requirements for the safe operation of trains and the travel comfort of passengers. The factors that affect safety and comfort mainly include the geometric parameters of the track such as gauge, level, direction and triangular pit. . According to the "Temporary Technical Conditions of Track Geometric State Measuring Instruments for Passenger Dedicated Lines Science and Technology Base [2008] No. 86" (hereinafter referred to as "Interim Technical Conditions"), refer to TB / 3147-2012 and the Ministry of Railways project "Research on Precision Measurement and Control Technology for High-speed Railway Maintenance and Maintenance" ", the main technical indicators of the track geometric state measuring instrument for passenger dedicated lines: (1) th...

AI Technical Summary

Problems solved by technology

According to the "Temporary Technical Conditions of Track Geometric State Measuring Instruments for Passenger Dedicated Lines Science and Technology Base [2008] No. 86" (hereinafter referred to as "Interim Technical Conditions"), refer to TB / 3147-2012 and the Ministry of Railways project "Research on Precision Measurement and Control Technology for High-speed Railway Maintenance and Maintenance" ", the main technical indicators of the track geometric state measuring instrument for passenger dedicated lines: (1) the absolute value of the indication error of the gauge is not greater than 0.3mm; (2) the absolute value of the indication error of the gauge change rate is not greater than 0.02%; (3 ) The absolute value of the indication error of the horizontal is not greater than 0.3mm; (4) The absolute value of the indication error of the triangular pit is not greater than 0.5mm; (5) The absolute value of the indication error of the height and rail direction is not greater than 0.7mm (10m String, 30m string), 3mm (300m string); (6) The absolute value of the indication error of the positive vector is not greater than 1.0mm (20m string); (7) The absolute value of the indication error of the lateral deviation of the line is not greater than 3.0mm ;(8) The absolute value of the indication error of the vertical deviation of the line is not greater than 2.5mm; (9) The absolute value of the indication error of the limit measurement is not greater than 5mm; (10) The absolute value of the indication error of the tunnel section measurement No more than 5mm, the current traditional inspection instrument can no longer meet the measurement requirements of high-speed rail lines and existing lines

[0003] The traditional track constraint measurement method generally uses the total station and the track fast fine-tuning car to measure the absolute coordinates of the line and the track gauge, level, and direction. The measurement accuracy can basically meet the requirements, but the accuracy needs to be improved. The mode is that the total station automatically tracks the prism on the track inspection trolley, and measures the absolute coordinates of the corresponding sleeper every time it arrives at a sleeper. The main disadvantage of this measurement mode is to ensure the accuracy of the total station measurement and the effective distance of one station setup. It is about 70m, which greatly reduces the working efficiency of the measurement

In particular, due to the short time of the skylight, the railway has high requirements for detection efficiency, requiring an operating efficiency of 200m / h, which cannot be achieved by existing equipment

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