High speed train modular floor and mounting method of modular floor

Abstract

The invention provides a high speed train modular floor and a mounting method of the modular floor. The high speed train modular floor comprises a supporting part, a shock absorbing part and a floor body, wherein the supporting part is arranged at the bottom of a train body, the shock absorbing part is positioned on the supporting part; the floor body is positioned on the shock absorbing part; thesupporting part extends in the length direction of the train body; the supporting part comprises multiple supporting units end to end; the shock absorbing part comprises a base and a support; the base is arranged on the supporting part; the support is arranged on the base; the support and the base are both provided with hollow cavity bodies; and when the support is arranged on the base, the hollow cavity body of the base communicates with the hollow cavity body of the support so as to form a shock absorbing area used for buffering shocks. According to the high speed train modular floor, the shock transmitted from a wheel pair to a compartment can be effectively buffered to inhibit medium and low frequency band noises in the compartment; and moreover, the heat insulation performance is excellent so that the comfortable taking environment in the compartment is guaranteed.

Description

technical field [0001] The invention relates to the technical field of rail vehicle equipment, in particular to a modular floor for high-speed EMUs and a method for installing the modular floor. Background technique [0002] With the successful operation of CRH3 high-speed EMUs on the Beijing-Tianjin Passenger Dedicated Line, it opened the prelude to the operation of high-speed railways in my country, marking that China's high-speed railways have come to the forefront of the world. At the same time, as passengers have higher and higher requirements for train comfort, the requirements for vibration and noise of the environmental interface in the vehicle are also increasing. For this reason, effective measures to reduce vibration and noise and improve passenger comfort and safety are an important issue in the development of high-speed trains. [0003] The noise sources of trains mainly include three categories: direct sound, transmitted sound and vibration radiated sound. Ac...

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Problems solved by technology

[0004] However, in the existing structure, because it is connected by bolts, this structure has functional defects, and has no significant effect on suppressing and blocking noise in the middle and low frequency bands (500Hz-1000Hz)

Moreover, a large amount of wood is used in the preparation of the floor system, which does not meet the requirements of today's green and environmental protection era; at the same time, the use of damping asphalt slurry will inevitably volatilize harmful substances such as phenyls, soluble lead, and soluble cadmium. Have a certain impact on the travel environment and the health of passengers

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