Vibration isolator failure indication component and design method for floating slab track bed

Abstract

The vibration isolator failure indication assembly for the floating slab track bed includes an outer sleeve and a failure indication assembly arranged outside the vibration isolator. The top of the outer sleeve is provided with an observation port for observing the indication status of the failure indication assembly. It is characterized in that It includes a height-adjusting backing plate located in the outer sleeve and placed on the vibration isolator, the top surface of the height-adjusting backing plate is against the middle plate inside the outer sleeve, and the failure indication component is installed on the height-adjusting backing plate, And the indication state will be changed with the separation of the height-adjusting backing plate and the middle plate. The inspectors of the present invention observe that the failure indication component changes the indication state through the observation port, which indicates that the vibration isolator has failed, the indication function is obvious, easy to observe, and the structure is simple, no daily maintenance of the indication device itself is required, and the replacement is convenient and economical. , easy to popularize and apply.

Description

technical field [0001] The invention relates to a failure indication component of a vibration isolator for a floating slab track bed and a design method thereof, which are used for failure indication of a vibration isolator for a floating slab track bed. Background technique [0002] Steel spring floating slab track structure is a new type of special damping track structure, which is composed of floating slab, steel spring vibration isolator, shear hinge, sealing strip, horizontal limit device, steel rail and fasteners, etc. It places a concrete floating slab with a certain mass and stiffness on a steel spring vibration isolator to form a mass-spring vibration isolation system. While the steel spring floating plate reduces the vibration and noise of the rail transit, the actual working conditions and usage status of each vibration isolator cannot be intuitively understood, which brings certain troubles to the maintenance and repair of the subway line operating units. In the...

AI Technical Summary

Problems solved by technology

[0009] The engineering practice shows that the minimum displacement of the vibration isolator may be only about 2mm when the spring breaks or the foundation settles. The scale indication of the existing mechanical indicating device is not obvious, and the maintenance workers cannot directly and clearly judge whether the vibration isolator is invalid, and the maintenance efficiency is low.

The electronic indicating and monitoring devices are mostly composed of strain gauges, indicator lights, signal terminals, power supplies and other electronic components. In the harsh environment of track lines, their own reliability is low, and a power supply must be installed. The device itself also needs to be inspected and maintained. The use cost and later maintenance cost of this type of device are high, and it is difficult to promote practical engineering applications

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