Sleeper with vibration reduction and energy collection characteristics

Abstract

The invention discloses a sleeper with vibration reduction and energy collection characteristics, and the sleeper comprises a sleeper main body and a vibration reduction and energy collection assemblyarranged in the sleeper main body; the vibration reduction and energy collection assembly comprises a steel box chamber, and a steel pipe, a mass block, a spring, a damper and a piezoelectric unit which are arranged in the steel box chamber; the upper end and the lower end of the steel pipe are respectively and rigidly connected with a top plate and a bottom plate of the steel box chamber; the mass block is slidably connected with the steel pipe, the upper end of the spring is rigidly connected with the lower surface of the mass block, and the lower end of the spring is rigidly connected witha bottom plate of the steel chamber; the two dampers are symmetrically arranged, the upper ends of the dampers are rigidly connected with the lower surface of the mass block, and the lower ends of the dampers are rigidly connected with a bottom plate of the steel box chamber; and the piezoelectric unit is arranged on the upper surface of the mass block and is electrically connected with a rectifier outside the sleeper. By the adoption of the vibration energy recycling device, control over vibration transmitted to the sleeper can be achieved, vibration transmitted to a ballast bed is well attenuated, and vibration energy recycling can be achieved.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and more specifically relates to a sleeper with the characteristics of vibration reduction and energy collection. Background technique [0002] With the rapid development of my country's rail transit, the vibration and noise problems induced by trains are becoming more and more prominent. When the train runs at a high speed, it will induce a lot of vibration and noise on the track. At the same time, the track vibration will react on the vehicle, causing the vehicle to vibrate. Vibration is the source of noise, reducing structural vibration can achieve the purpose of reducing noise. [0003] The current rail structure vibration reduction technology includes sleepers, vibration reduction fasteners and vibration reduction ballast pads, etc. Their working mechanism mainly revolves around changing the stiffness of the track structure to achieve the effect of vibration reduction, but these device...

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Problems solved by technology

[0003] The current rail structure vibration reduction technology includes sleepers, vibration reduction fasteners and vibration reduction ballast pads, etc. Their working mechanism mainly revolves around changing the stiffness of the track structure to achieve the effect of vibration reduction, but these devices are expensive or aggravate the vehicle body vibration problem, so a new type of track damping structure needs to be proposed

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