Built-in type floating track bed and method and device for lifting same

A technology of floating ballast bed and jacking device, which is applied in the field of rail transit, can solve the problems of poor adaptability and large installation space, and achieve the effects of reduced vibration isolation efficiency, high work efficiency and cost reduction

Active Publication Date: 2010-09-29
尹学军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, the existing jacking method using jacking blocks as the supporting structure requires a large installation space above the vibration isolator, which has poor adaptability. The market urgently requires a more flexible and space-requiring Low new jacking method and jacking tools, as well as the corresponding ballast bed

Method used

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  • Built-in type floating track bed and method and device for lifting same
  • Built-in type floating track bed and method and device for lifting same
  • Built-in type floating track bed and method and device for lifting same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Such as figure 1 , figure 2 The jacking device shown in the present invention includes a load-bearing beam 1 made of I-shaped steel profiles. A locking fixture that can be reliably connected to the rail is provided on the load-bearing beam 1. The locking fixture includes a pair of ear plates 2 that cooperate with each other. and fixed pin 3. In order to better realize the cooperation between the jacking device of the present invention and the rail, limit blocks 70 are provided on both sides of the bearing beam 1 and the ear plate 2 corresponding to the position of the rail head.

[0071] Such as image 3 As shown, when it is applied to jacking up the floating ballast bed, the rail 4 is generally fixed on the floating plate by the rail fastener 6, firstly, the elastic vibration isolator 12 and the spacer 10 are put into the reserved passage of the floating plate 7 in turn. In the hole, the elastic vibration isolator 12 is located under the support block 9, the gasket...

Embodiment 2

[0075] Such as Figure 4 , Figure 5 The jacking device of the present invention shown differs from Embodiment 1 in that the load beam 1 is formed by butt welding of two channel steels, and the load beam 1 is provided with a locking fixture that can be reliably connected to the rail. The locking fixture includes Two pairs of chain rings 14 and threaded connectors 35 and nuts 15 provided at both ends thereof, the chain rings 14 are connected to the load beam 1 through the threaded connectors 35 and nuts 15 . Limiting blocks 71 are fixedly arranged on both sides of the position corresponding to the rail head on the load beam 1 . In application, only the jacking device of the present invention is fixedly connected with the rail by using the locking fixture, and the rest of the jacking process is the same as that of the first embodiment.

[0076] In addition to the structure shown in this example, based on this connection principle, there are many forms of chain links that can a...

Embodiment 3

[0078] Such as Figure 6 , Figure 7 The jacking device of the present invention shown differs from the first embodiment in that a steel plate 16 is welded at one end of the load-bearing beam 1 made of I-shaped steel to support the jack. A locking fixture that can be reliably connected to the rail is provided on the load beam 1 . The lock fixture includes a lock 17 and a nut 15 , and the lock 17 is connected to the load beam 1 through the nut 15 . In order to improve the stress on the rails, two sets of locking fixtures are provided, and the distance between the two sets of locking fixtures is adapted to the distance between the rails, wherein each set of locking fixtures includes two locking buckles 17 and four nuts 15 . In application, only the jacking device of the present invention and the two rails are fixed together by using the locking fixture, and the rest of the jacking operation steps are the same as those in Embodiment 1.

[0079] Since the steel plate 16 is arra...

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PUM

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Abstract

The invention relates to a track bed and a method and a device for lifting the same. The floating track bed is lifted by using a carrying beam which can be connected with a steel rail or floating plate through a locking clamp or hanging clamp as the support of the force of the working jack, thus the defect existing in the prior art that the floating track bed is lifted by using a lifting baffle block as the support of the force of the working jack is overcome. The device and the method have a lower requirement for the lifting space in and above a vibration isolating device and are more applicable. In addition, the device has simple structure, convenient operation, reliable performance and high work efficiency and can be widely used for lifting the built-in type floating structure, particularly the built-in type floating track bed and maintaining and replacing the vibration isolating device thereof in the later period.

Description

technical field [0001] The invention relates to the field of rail transportation, in particular to a jacking method and a jacking tool for a track bed, and a built-in floating track bed for jacking by using the method and the tool. Background technique [0002] With social development and scientific and technological progress, large and medium-sized cities pay more and more attention to the development of urban rail transit, and urban rail construction, especially underground railway construction, has also been launched one after another. In order to reduce the disturbance to the upper part of the track or surrounding properties and residents, setting up floating slab track beds in special sections is an important vibration isolation measure in subway design. In order to save space and facilitate maintenance and replacement, most of the vibration isolation devices in the existing floating slab track bed system adopt a built-in structure. For example, the Chinese patent appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B19/00
Inventor 尹学军孔祥斐
Owner 尹学军
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