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Elastic sleeper type ballastless bed

A sleeper and elastic technology, applied in the field of railway track structure, can solve the problems of reducing the comfort of train operation, inconvenient equipment and tools, and hidden dangers of driving safety, so as to achieve good vibration isolation effect and stability, reduce maintenance workload, and ensure Smooth and safe effect

Active Publication Date: 2008-12-31
QINGDAO CREATE ENVIRONMENT CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this construction method facilitates the construction and maintenance of railway tracks in special sections such as tunnels to a certain extent, it is necessary to remove the rail or lift a certain height to take out the elastic support block when repairing and replacing sleepers or elastic rubber pads. It is very inconvenient, especially a considerable part of the workplace is in the field, and it is extremely inconvenient to transport and carry related equipment and tools for raising the rail, which brings great difficulties to the construction of the maintenance and replacement of the elastic support block. After the replacement, re-align the position of the rail and adjust the rail Operations such as height will also consume a lot of man-hours
In addition, this kind of groove structure where sleepers are installed from top to bottom often has the phenomenon that rainwater cannot be discharged. Seriously reduce the elasticity of the rubber pad under the sleeper, increase the rigidity of the system, weaken the vibration damping effect, reduce the comfort of train operation, and accelerate the aging of the rubber pad under the sleeper, reducing its service life
Moreover, for the local subsidence of the ballast bed body caused by construction or geological changes, because the sleepers are connected together by the rails, they cannot move together with the ballast bed, so it is easy to form a phenomenon that the local sleepers are suspended in the air, and the sleepers will suddenly sink when the train passes by. , not only easily cause damage to sleepers and rails, but also bring great hidden dangers to driving safety

Method used

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  • Elastic sleeper type ballastless bed
  • Elastic sleeper type ballastless bed
  • Elastic sleeper type ballastless bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 , figure 2 , image 3The shown elastic sleeper ballastless ballast bed of the present invention includes a ballast bed body 1, a sleeper 2 and a rail 4, wherein the sleeper 2 is a short sleeper, the sleeper 2 is placed on the ballast bed body 1, and the rail 4 is fixed by fasteners 5 and bolts 6. Set on sleeper 2. The rubber pad 11 is set below the sleeper 2 as an elastic supporting element, and a height-adjusting gasket 25 made of engineering plastics is also provided as a height-adjusting device, and the height-adjusting gasket 25 is placed on the rubber pad 11 top. The side of the sleeper 2 is also provided with a guide device, including a fixed stopper 10 integrated on the ballast bed body 1 and a detachable movable stopper 7, and the movable stopper 7 is fixedly arranged on the ballast bed through the fastening bolt 8 and the connecting sleeve 20. On the main body, the sleeper 2 is defined in the groove that is surrounded by the fixed block 10 ...

Embodiment 2

[0034] Such as Figure 4 As shown, compared with Embodiment 1, in order to prevent the rubber elastic guide backing plate 3 from being directly set between the fixed block 10 and the sleeper 2, the rubber elastic guide backing plate 3 and the stopper are not easy to stick firmly, which may occur after disengagement. To move, a connecting plate 13 can be set, the rubber elastic guide backing plate 3 and the connecting plate 13 are vulcanized into one, and then the fastener 14 is used to fix it on the fixed block. In the same way, it is also possible to arrange a coupling plate on the movable stopper 7 (not shown in the figure, generally using metal material) or directly vulcanize the rubber elastic guide backing plate 3 and the movable stopper 7 into one. In addition, since the rubber pad 11 as an elastic supporting element is prone to fatigue and aging, it can be vulcanized and used in parallel with the disc spring 12 to improve the service life of the elastic supporting eleme...

Embodiment 3

[0037] Such as Figure 5 , Figure 6 The difference between the elastic sleeper type ballastless ballast bed of the present invention compared with the first embodiment is that the fixed block 10 is formed by the side wall of the groove arranged on the ballast bed body, and the groove is opened and set on the outer side of the ballast bed body 1 , Utilize fixed bolt 8 to be fixedly arranged on movable block 7 on the ballast bed body 1 of this side, the outer space of movable block can be used as maintenance replacement space. In order to facilitate the positioning and loading and unloading of the sleeper 2, the contour shape surrounded by the groove and the movable stopper 7 is set as a trapezoid, and the corresponding sleeper 2 is also set as a trapezoid. The advantage of using a trapezoidal sleeper is that when the sleeper is taken out, once the sleeper side is When the metal elastic piece is loosened, the friction force on both sides disappears, and it is easy to take out....

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PUM

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Abstract

The invention relates to a railroad track structure, which comprises a ballast bed body, sleepers and elastic supporting elements, rails are fixedly arranged on the sleepers by track fasteners, the sleepers are positioned on the ballast bed body, the elastic supporting elements and an adjustment height device are disposed under the sleepers, guiding devices are arranged inside or on side faces of the sleepers, and the guiding devices can correspondingly adjust or reserve the guiding stroke following the height change of the adjustment height device. The railroad track structure greatly facilitates the overhauling, maintenance repairs and replacements of the sleepers, and effectively reduces the construction cost, and can better ensure the stable and safe vehicle running while guaranteeing the original advantages of vibration reduction, noise reduction and anti-attrition of the traditional elastic supporting block type ballastless track, thereby being favorable for further extending the service life of equipment, reducing the workload of track maintenance, saving the maintenance cost, and reducing the cost of transportation, and the railroad track structure can be widely used for the modification of the original sleeper type ballastless track beds or the construction of new sleeper type ballastless track beds.

Description

technical field [0001] The invention belongs to a railway track bed, and in particular relates to a railway track structure, which can be specifically railways, subways, urban railways, elevated light rails, high-speed railways and the like. Background technique [0002] The traditional railway track adopts the construction method of laying sleepers on the roadbed, fixing rails on the sleepers, and covering the surface of the roadbed and around the sleepers with a certain thickness of road stones. During use, regular maintenance is required, such as replacing sleepers, adding road stones, etc. . Since the railway line often passes through the tunnel, if the railway track with the above structure is used in the tunnel, it is not only inconvenient to construct, but the more prominent problem is that it is extremely inconvenient to maintain. In order to deal with this situation, a kind of elastic support block (including reinforced concrete sleeper and elastic rubber cover pad...

Claims

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Application Information

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IPC IPC(8): E01B9/68
Inventor 尹柏杨李恒义
Owner QINGDAO CREATE ENVIRONMENT CONTROL TECH
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