A railway ballastless track walking type drop shaft test bench

Abstract

The invention relates to a railway ballastless track walking type doffing testbed. The railway ballastless track walking type doffing testbed comprises a bearing walking device, a wheel pair supporting and moving device, a wheel pair lifting device, vehicle wheel pairs and a control device, wherein the bearing walking device is characterized in that two pairs of walking wheel pairs matched with steel rails of a railway are installed on a chassis, and one pair of walking wheel pairs have power; the wheel pair supporting and moving device is characterized in that the lower portions of supporting blocks are connected with the chassis through two longitudinal sliding rails, and the front portions of the supporting blocks are connected with electric pushing rods. The vehicle wheel pairs are arranged on the two supporting blocks; the wheel pair lifting device is characterized in that a vertical support is arranged in the middle of the chassis, a steel wire rope is wound on a fixed pulley at the top of the vertical support to be connected with a winch and a hoisting positioning block, the back side of the hoisting positioning block is connected with the vertical support through a vertical sliding rail, and an electromagnet is fixed to the lower end of the hoisting positioning block. Four lifting devices are installed on the bottom face of the chassis. When the railway ballastless track walking type doffing testbed is used for performing a ballastless track doffing impact test, obtained test results are more accurate and more reliable, so that the more reliable basis can be provided for designing, construction and maintenance of a ballastless track.

Description

technical field [0001] The invention relates to a railway track experiment equipment, in particular to a railway ballastless track walking type drop shaft test bench. Background technique [0002] The "Medium and Long-term Railway Network Planning" approved by the State Council in 2004 established the blueprint for my country's railway construction. According to the goal of the "Medium and Long-Term Railway Network Planning", the national railway operating mileage will reach 100,000 kilometers in 2020, of which high-speed railways will reach more than 12,000 kilometers, forming a "four vertical and four horizontal" high-speed railway skeleton and three intercity passenger transport systems , the passenger car speed target value reaches 250 kilometers per hour and above. Since the ballastless track cancels the gravel track bed, the ability of the track to maintain the geometric state is improved, the track stability is correspondingly enhanced, and the maintenance workload i...

AI Technical Summary

Problems solved by technology

The existing problems are: fixed equipment cannot transfer the test point of the falling shaft, and cannot go to the running line for testing; it is also impossible to test the long unit track slab, and it cannot simulate the influence of the lateral rigidity of the double rail track of the long rail in the actual structure. Large experimental error

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