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Sleeper for track skeleton and method for manufacturing sleeper

A sleeper and rail row technology, which is applied in the field of sleepers for medium and low-speed maglev train rail rows, can solve the problems of complex processing and manufacturing, low production efficiency, and high manufacturing cost, and achieve the effects of low manufacturing cost, simple structure, and simple manufacturing

Inactive Publication Date: 2012-07-25
莱芜美澳冶金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can effectively solve the problem of thermal expansion and contraction between the circular arc segment rail row and the connected cast-in-place bridge, but its processing and manufacturing are still relatively complicated, with low production efficiency, high manufacturing cost and difficult installation

Method used

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  • Sleeper for track skeleton and method for manufacturing sleeper
  • Sleeper for track skeleton and method for manufacturing sleeper
  • Sleeper for track skeleton and method for manufacturing sleeper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] like figure 1 , figure 2 and image 3 As shown, a sleeper for the track row of a medium-low speed maglev train is welded by two H-shaped steels at the front and rear and a pair of H-shaped steels in the middle, and is characterized in that: the two H-shaped steels at the front and rear are respectively processed into the front H-shaped steel sleeper 1 and The rear H-shaped steel sleeper 2 has two short H-shaped steel 3 welded at the middle position of the front H-shaped steel sleeper 1 and the rear H-shaped steel sleeper 2; The length is 1 / 6 of the length of the lower flange, and two oval or circular anchor bolt holes 4 are processed on both sides of the H-shaped steel web 8, which are fixed on the foundation by bolts, such as figure 1 , figure 2 and image 3 shown. Four circular F-rail bolt holes 5 are symmetrically processed on both sides of the upper flange 6 of the front H-shaped steel sleeper 1 and the rear H-shaped steel sleeper 2. track connection. The d...

Embodiment 2

[0049] like Figure 4 , Figure 5 and Figure 6 As shown, a sleeper for the rail row of a medium-low speed maglev train consists of a front steel pipe sleeper 1A and a rear steel pipe sleeper 2A, and two square steel pipes 3A are welded at the middle position of the front steel pipe sleeper 1A and the rear steel pipe sleeper 2A ; An oval or circular anchor bolt hole 4 is respectively processed at the center of the bottom surface 7A of the front steel pipe sleeper 1A and the rear steel pipe sleeper 2A. bolted to the foundation, such as Figure 4 , Figure 5 and Figure 6 shown. On the top 6A of the front type steel pipe sleeper 1A and the rear type steel pipe sleeper 2A, 4 circular F-rail bolt holes 5 are respectively symmetrically processed with a distance of 100mm from the end to connect with the left and right F-shaped steel rails. The specific positions are determined by the professional technicians. Design OK. The foundation is a track beam, a support structure of c...

Embodiment 3

[0058] The difference from Example 2 is that the two short square steel pipes 3A are replaced by two short H-shaped steels 3 .

[0059] The sleeper material of the present invention is made of Q345 carbon structural steel.

[0060] Others are with embodiment 2.

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Abstract

The invention relates to a sleeper for a track skeleton and a method for manufacturing the sleeper, in particular to a sleeper for medium-low speed magnetic-levitation train rails, and in particular to a sleeper for supporting a track skeleton joint on a magnetic-levitation rail, wherein the track skeleton joint has large heat-expansion and cold-contraction quantity. The sleeper comprises a front H-shaped steel sleeper, a rear H-shaped steel sleeper or a square steel tube sleeper and 1-4 middle H-shaped or square steel tubes by means of welding. The sleeper has the advantages of simple structure, simple manufacturing process, convenience in installation and low manufacturing cost, and effectively solves the problem that connection between track skeletons in a special section or an arc section needs the track skeleton joint with the larger heat-expansion and cold-contraction quantity.

Description

technical field [0001] The invention relates to a sleeper for a rail row of a medium-low speed maglev train, in particular to a sleeper supporting a rail row joint on a maglev rail having a relatively large amount of thermal expansion and contraction. Background technique [0002] The sleepers used in the track row of medium and low speed maglev trains are mainly square tubes, welded I-beams, hot-rolled H-beams, #-shaped sleepers, and rectangular sleepers. Square tubes are welded into round tubes by hot-rolled coils, and then processed into square tubes, or directly cold-bent into square tubes, and then welded and straightened. The energy consumption is high, the yield is low, and the processing cost is high. Welding the I-beam also needs to cut the hot-rolled steel plate, then weld it into an I-beam and straighten it. The existing national and international standard H-beams are difficult to meet the technical requirements of sleepers. [0003] CN2584643 discloses a kind o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B25/30E01B3/20
Inventor 董涛
Owner 莱芜美澳冶金科技有限公司
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