A damper-type floating slab track

Abstract

The invention discloses a damper-type floating plate track, a shear hinge connecting the track plate with another track plate, and a spring for damping vibration arranged under the steel rail and inside the floating plate. Viscous Damper Assembly. The advantage of the present invention is that the traditional steel spring is replaced by a spring-viscous damper as the vibration isolation element, and the parameters of the elastic element are reasonably matched, which not only effectively suppresses the high-frequency vibration, but also absorbs the low-frequency resonance energy of the track plate. It makes up for the deficiency of the steel spring floating plate track in suppressing low-frequency vibration, and expands the vibration isolation frequency range of the floating plate track. The damper assembly is easy to install, disassemble, and for later maintenance. The damper converts kinetic energy into heat energy and dissipates it. Its structure is relatively simple, and the movement is stable when reciprocating.

Description

technical field [0001] The invention relates to the technical field of vibration reduction and noise reduction of rail transit, in particular to a damper-type floating plate track. Background technique [0002] The contradiction between urban land resources is becoming more and more prominent, and the selection of urban rail transit routes will inevitably pass through vibration-sensitive areas such as residential areas, ancient buildings and scientific research institutions with sophisticated instruments. The environmental vibration generated by the urban rail transit trains will endanger the physical and mental health of the residents along the line, cause damage to the ancient buildings, and affect the normal operation of the precision instruments. Effective vibration reduction measures are urgently needed to reduce the harm caused by the environmental vibration. [0003] The floating slab track can well meet the needs of vibration reduction in special areas and is widely ...

AI Technical Summary

Problems solved by technology

Among them, the integrally supported rubber floating slab track has the advantages of simple structure, small construction error, fast speed, uniform stress on the inverted arch and ballast bed, large supporting area, better resistance to the longitudinal and lateral forces of the track, and low cost, etc. Advantages, but there are also problems such as unstable performance and poor durability

CN2019113963522 discloses a shock-absorbing subway track device, which includes a steel rail, a support plate, a first base, a second base, an inner spring, an outer spring, and a liquid return channel, etc. Its structure is extremely complicated, its stability is poor, and its cost is high ;The track belongs to high-frequency reciprocating vibration, and the lengthy bending return channel leads to a long response time of the piston, which cannot achieve the expected damping effect; the rail is placed on the damping device through the support plate, lacking fasteners, sleepers or track plates, etc. A necessary part of the track, poor applicability

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