Energy-storing and shock-absorbing type power generation device for subway train rails

Abstract

The invention discloses an energy-storing and shock-absorbing type power generation device for subway train rails. The energy-storing and shock-absorbing type power generation device comprises an external upper bearing plate, a lower bearing plate and a vibration block, wherein four main shock-absorbing springs are supported between the external upper bearing plate and the lower bearing plate; multiple layers of cantilever beams are arranged in parallel between the external upper bearing plate and the lower bearing plate; piezoelectric ceramic pieces are glued on the upper surfaces and the lower surfaces of the cantilever beams; the multiple layers of cantilever beams are supported between support seats on the left side and the right side, the multiple layers of cantilever beams are connected to one vibration block, the top of the vibration block is supported on an internal upper bearing plate, and the bottom of the vibration block is supported on the lower bearing plate through an auxiliary shock-absorbing spring. Vibration energy is converted into electric energy through the butterfly type piezoelectric cantilever beams, a two-level shock-absorbing mechanism of a subway train is formed by the main shock-absorbing springs and the auxiliary shock-absorbing spring, recycling of vibration energy during running of the subway train is realized, a self-power-generation system of the subway train is formed through energy conversion, energy is saved, and the subway operation cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of energy recovery, and in particular relates to an energy storage shock absorption power generation device. Background technique [0002] Energy crisis is one of the most concerned issues in the world today. Scientists from all over the world have been working hard to find and develop new energy sources to solve the problems of energy shortage and the use of traditional energy sources. Potentially available energy sources in the environment include: solar energy, vibration or noise , temperature difference, etc., in which vibration or noise can be almost everywhere, and has a high energy density. Taking the subway system as an example, the subway generates a lot of vibration energy during operation and radiates to the outside through the wheel-rail noise, resulting in a large amount of energy loss. [0003] With the development of economy and society and the growth of population, the subway is gradually be...

AI Technical Summary

Problems solved by technology

However, there is no relatively mature device that can be applied to subway vibration energy recovery in the prior art.

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