Floating slab limiting device and floating track bed

Abstract

The invention relates to the technical field of rail transit and discloses a floating slab limiting device and a floating track bed. The floating slab limiting device comprises a concrete limiting stopping block arranged in a gap of a floating slab; a buffering pad component connected with the concrete limiting stopping block in an anchored manner is arranged between the concrete limiting stoppingblock and the floating slab; the buffering pad component comprises a buffering pad main body and a rigid plate which is arranged between the buffering pad main body and the floating slab; and the rigid plate is in smooth contact with the floating slab. According to the floating slab limiting device and the floating track bed, as the buffering pad component connected with the concrete limiting stopping block in an anchored manner is arranged between the concrete limiting stopping block and the floating slab, the buffering pad component comprises the buffering pad main body and the rigid platewhich is arranged between the buffering pad main body and the floating slab, and the rigid plate is in smooth contact with the floating slab, irreversible upward pull-out phenomenon of the buffering pad component is avoided.

Description

technical field [0001] The present disclosure relates to the technical field of rail transit, and in particular to a floating slab limiting device and a floating ballast bed including the floating slab limiting device. Background technique [0002] In the ballast bed, the floating plate limit device is usually used to realize the limit requirement of the ballast bed. For example, the traditional steel spring floating plate usually uses a horizontal limiter at the base of the vibration isolator or a side (middle) limit stop to achieve the limit function. In other types of floating plates (such as rubber pad floating plates, etc.) Concrete limit stops have also been used in ordinary track beds. However, for the steel spring floating slab, the simple horizontal limiter of the base of the vibration isolator can meet the working conditions such as underground lines, but it cannot meet the requirements for the steel spring floating slab on the bridge, especially in the curved sec...

AI Technical Summary

Problems solved by technology

However, for the steel spring floating slab, the simple horizontal limiter of the base of the vibration isolator can meet the working conditions such as underground lines, but it cannot meet the requirements for the steel spring floating slab on the bridge, especially in the curved section. Setting concrete limit stops will greatly increase driving safety

In addition, when the concrete limit stop is installed, it often causes a hard collision between the floating slab and the concrete limit stop, thus reducing the vibration reduction effect and increasing safety hazards. The ups and downs of the floating plate will cause the cushion pad to be driven upward, which may cause irreversible upward pull-out after long-term use; again, the current floating plate limit device has a short service life and is not easy to replace

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