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Four-wheel small platform lorry for pre-assembled turnout slippage and construction method

A construction method and pre-assembled technology, which are applied in the field of four-wheeled flatbed trucks and construction, can solve the problems of potential safety hazards, rising maintenance costs, and poor track smoothness, and achieve a simple and feasible combined structure, easy installation and disassembly, and reduced construction. cost effect

Pending Publication Date: 2020-06-09
CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing cross-over turnouts behind the subway operation line station are used as the upper and lower lines for operation, and the frequency of use is high. Due to the long service life, obsolete equipment, rail wear, and aging of rail materials, it is easy to cause safety problems, especially due to The subway has been in operation for a long time, and the fatigue period of the rail has reached the service life. The wear of the working edge of the rail leads to poor smoothness of the track, and there are safety hazards when the train turns back.
The type of the existing crossover turnout is wooden sleeper, the service life of wooden sleeper is short, and the maintenance cost is increasing year by year. The wooden sleeper and turnout rail parts are prone to repeated failure and damage. Therefore, in order to ensure operation safety and improve safety redundancy, regular Replacing the entire set of crossover switches and wooden sleepers

Method used

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  • Four-wheel small platform lorry for pre-assembled turnout slippage and construction method
  • Four-wheel small platform lorry for pre-assembled turnout slippage and construction method
  • Four-wheel small platform lorry for pre-assembled turnout slippage and construction method

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Embodiment 1

[0046] In this embodiment, the frame body size is 2000mm×300mm, and it is welded by three 8# channel steels (80×45×5mm) with a length of 2000mm and a width of 300mm, and three 8# channel steels with a length of 2000mm The steel is arranged in parallel along the front and back directions, and 5 8# channel steels with a width of 300mm are arranged in parallel along the left and right directions to form a rectangular frame body, which can not only ensure the overall strength, but also facilitate manufacturing. The vehicle frame body can be obtained by welding, and can be applied to the gap between two sleepers under the pre-assembled turnout rail, which solves the problem that the existing equipment cannot be applied to this scene. The wheel mounting plate is processed by 4 iron plates with a thickness of 10mm into a trapezoidal shape with an upper width of 80mm, a lower width of 60m, and a height of 140mm. A slot with a width of 30mm and a height of 50mm is cut in the middle of t...

Embodiment 2

[0050] combine Figure 13-Figure 16 , the present embodiment provides a construction method for applying the four-wheeled small flatbed vehicle to the transformation of the cross-over line turnout after the station of the subway operation line, and the construction method is as follows:

[0051] Set up a pre-assembled platform on both sides of the operating line, pre-assemble in blocks according to the composition of the cross-crossing turnout, set the four-wheeled flatbed under the pre-assembled turnout, and slide to the design position through the temporary guide rail and the existing line rail. Install 6 pairs of hydraulic high-leg track lifters on the pre-assembled turnout. During the sliding process, the direction is changed. Ascending, withdrawing from the temporary guide rail, and descending at the same time to carry out the work of starting and shifting the cross-crossing line. Reasonably arrange the connection of various disciplines, quickly complete the coordination...

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Abstract

The invention relates to the technical field of rail construction, in particular to a four-wheel small platform lorry for pre-assembled turnout slippage and a construction method. The four-wheel smallplatform lorry comprises a frame body and a pre-assembled turnout clamp, wherein the frame body is provided with oppositely arranged long edge sides and oppositely arranged short edge sides, at leasttwo pairs of wheel mounting plates are arranged downwards on each short edge side, a wheel shaft is connected between each pair of wheel mounting plates, the wheel shafts are connected to rail-mounted wheels, trapezoidal sections are arranged at the lower ends of the wheel mounting plates, the upper bottoms of the trapezoidal sections are positioned at the bottommost ends, clamping grooves are upwards formed in the middle of the bottom ends of the trapezoidal sections, and an arc-shaped end part is arranged at the upper end of each clamping groove. Compared with the prior art, the combined structure is simple, feasible and easy to assemble and disassemble, the size of the four-wheel small platform lorry can be small enough due to the structure so that the combined structure can be arranged at a gap between two sleepers under a pre-assembled turnout steel rail, the pre-assembled turnout can integrally slip to a designed position without adjusting the sleepers, and the sleeper spacing does not need to be adjusted.

Description

technical field [0001] The invention relates to the technical field of track construction, in particular to a small four-wheel flatbed vehicle used for pre-assembled switch slippage and a construction method. Background technique [0002] The existing cross-over turnouts behind the subway operation line station are used as the upper and lower lines for operation, and the frequency of use is high. Due to the long service life, obsolete equipment, rail wear, and aging of rail materials, it is easy to cause safety problems, especially due to The subway has been in operation for a long time, and the fatigue period of the rail has reached the service life. The wear of the working edge of the rail leads to poor track comfort, and there are safety hazards when the train turns back. The type of the existing crossover turnout is wooden sleeper, the service life of wooden sleeper is short, and the maintenance cost is increasing year by year. The wooden sleeper and turnout rail parts a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B29/02
CPCE01B29/02E01B2203/143E01B2203/14
Inventor 徐明发段德荣郑康海刘习生赵文君吴超王立川杨鹏钱琨
Owner CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD
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