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Variable stiffness support device and method for floating slab track

A supporting device and variable stiffness technology, applied in the field of rail transit, can solve problems such as unadjustable stiffness

Active Publication Date: 2022-05-13
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stiffness of the existing floating slab support device cannot be adjusted after the line construction is completed. Even if the support stiffness is adjusted by replacing the support device, it is difficult to complete the construction within a short skylight time

Method used

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  • Variable stiffness support device and method for floating slab track
  • Variable stiffness support device and method for floating slab track
  • Variable stiffness support device and method for floating slab track

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 As shown, the variable stiffness support device 7 for the floating plate track of this embodiment is installed in the reserved hole of the support device of the floating plate 8 .

[0043] Such as figure 2 , 3 , 4, the variable stiffness support device for the floating plate track in this embodiment includes 6 annular basic support units 1, base 2, inner sleeve 3, DC motor 4, top cover 5 and transmission structure 6.

[0044] Each annular basic support unit 1 is composed of an annular fixed upper disc spring 10 , an annular movable lower disc spring 11 and 12 stiffness adjustment blocks 12 . The annular fixed upper disc spring 10 includes an upper disc spring notch 101 , an upper disc spring inner diameter support surface 102 , an upper disc spring outer diameter support surface 103 and an upper disc spring limit protrusion 104 . The upper disc spring notch 101 opens on the inner side of the upper disc spring 10 with an inclination of 45°. The top s...

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PUM

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Abstract

The invention discloses a variable stiffness support device and method for a floating plate track. The device comprises an annular basic support unit, a base, an inner sleeve, a top cover and a rotary drive unit. Each annular basic support unit is composed of an annular fixed upper disc spring, an annular movable lower disc spring and a plurality of stiffness adjustment blocks. By adjusting the matching angle of the two disc springs, the stiffness adjustment block slides in the notch inside the disc spring, thereby changing the effective lever arm length of the disc spring, and achieving the purpose of infinitely adjusting the stiffness of the support device. The invention adjusts the stiffness of the support device by an electronically controlled motor, and can quickly complete the stepless adjustment of the stiffness of the support device within a limited skylight time, ensuring that the invention can meet the requirements for vibration reduction of floating slabs under different rail transit line conditions.

Description

technical field [0001] The invention belongs to equipment in the technical field of rail transportation, and more specifically relates to a variable stiffness support device for a floating slab track. Background technique [0002] With the massive construction of urban rail transit, more and more rail transit lines are adjacent to or even pass through buildings that require vibration control. The slab floating slab track is the highest level of vibration and noise reduction measures for the track. The traditional steel spring floating slab has a good vibration isolation effect and can adapt to the requirements of different vibration reduction levels and construction progress. However, after the long-term operation of the rail transit line, the operating conditions of the line will change, and the load characteristics of the train and the vibration and noise reduction requirements around the line will change in real time. The stiffness of the existing floating slab support d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B1/00E01B19/00
CPCE01B1/00E01B19/003
Inventor 金浩
Owner SOUTHEAST UNIV
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