Steel rail impact test device and method

Abstract

The invention relates to a steel rail impact test device and method. According to the steel rail impact test device and method, continuous impact function of an electric impact rammer is utilized, spherical holding and stabilizing impact heat accessories are designed, and a controller is arranged, so that steel rails are impacted at regular time. The device comprises a portal frame, an upper pressing plate, a lower pressing pate, a fixing bolt, a vibration plate, a floating spring, a limiting bolt, a rotary shaft, a joint grasp plate, a pin roll, an impact hammer handle holder, the electric impact hammer, an impact head special for the steel rails, a buffer cushion, a knuckle bearing, a limiting connecting rod and a control cabinet. The steel rail impact test device has the advantages of being large in impact force, simple in structure, convenient to use and the like, can simulate impact of a train on the steel rails on the high-speed railway site, and enables tests to be close to the real working conditions.

Description

technical field [0001] The invention relates to a rail impact test device and method, especially for simulating the dynamic impact of a high-speed train on a seamless rail, so as to test the working stability and correctness of wireless sensor nodes and their installation fixtures. Background technique [0002] With the rapid development of seamless high-speed railway, my country has become the country with the longest operating mileage, the highest operating speed and the largest scale under construction in the world. The maintenance and monitoring of high-speed railway has become an issue that must be faced. The safety of seamless lines is one of the most concerned issues of the railway department. The long-term high-speed operation of the train has caused great impact on the rails, and the rails are prone to damage such as peeling, corrugated surfaces, and cracks. When the rail temperature changes, a longitudinal temperature force will be generated in the constrained long...

AI Technical Summary

Problems solved by technology

The wireless sensor node and the installation fixture with the acceleration sensor must pass the stability and correctness test before the actual seamless line installation. At present, the commonly used method is the manual hammering method or testing on a shaking table. The vibration obtained by the hammering method Large randomness and huge manpower and time consumption, the vibration intensity of the test on the shaking table is weak, and it is impossible to simulate the impact of the harsh natural environment on the spot of the seamless line

Images