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Asymmetric high manganese steel integral cast fork core combined frog

A high-manganese steel, asymmetric technology, applied in the direction of point switches, roads, tracks, etc., can solve the problems of less maintenance, unable to meet the high service life of users, broken core rails, etc., to improve the quality of the fork center, simple structure, and improved The effect of stress

Pending Publication Date: 2018-03-23
CHINA RAILWAY BAOJI BRIDGE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although alloy steel composite frogs solve the problem of on-site welding of seamless lines, since the heel of the alloy steel core rail is a symmetrical necking structure, there is stress concentration, and the two-way impact of the wheels during use is prone to breakage of the core rail (see image 3 , 4 ), unable to meet the user's requirements of high life and less maintenance

Method used

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  • Asymmetric high manganese steel integral cast fork core combined frog
  • Asymmetric high manganese steel integral cast fork core combined frog
  • Asymmetric high manganese steel integral cast fork core combined frog

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Embodiment 1: with reference to attached Picture 1-1 to Figure 1-5 and Figure 2-1 to Figure 2-5 . An asymmetrical high-manganese steel whole-cast fork center combination frog is characterized in that: asymmetrical high-manganese steel whole-cast fork center 1, wing rails 4 and 5, and long and short fork follower rails 2 and 3 pass through intervals Iron 6 and high-strength bolt connection pair 7 are assembled; the asymmetrical high manganese steel integral casting fork center has one space between the iron 6 and the asymmetrical high manganese steel integral casting fork. The lower part of the spacer iron 6 is supported on the upper surface of the wing rail limb or the upper surface of the long and short fork heel rails 2 and 3, and the upper part of the spacer iron 6 is supported on the lower jaw of the wing rail rail head or the lower jaw of the long and short fork heel rails 2 and 3 rail heads , maintain the consistency of the transmission path of the vertical ...

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PUM

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Abstract

The invention relates to an asymmetric high manganese steel integral cast fork core combined frog. The combined frog is formed by assembling an asymmetric high manganese steel integral cast fork core,wing rails, long and short fork root rails and spacer blocks through high-strength bolts. The spacer block in the position of the fork core and the fork core are in a high manganese steel integral cast integrated mode, the overall stability of the structure is enhanced, and the impact toughness and abrasive resistance of high manganese steel are brought into full play. The fork core root end is attached to the fork root rails to form an asymmetric connecting structure, stress concentration is avoided, the stress state of the position is improved, and therefore the service life of the frog isprolonged; and the wing rails and the fork root rails are made from steel rails made of a material the same as that of a rail, and the welding demands of the continuous welded rail are met.

Description

technical field [0001] The utility model relates to a method that can not only solve the problem that the fixed high manganese steel entire cast frog cannot meet the requirements of seamless lines, but also can avoid the existing stress caused by the heel of the alloy steel core rail of the alloy steel combined frog with a symmetrical necking structure. Concentrated, the two-way impact of the wheels during use is prone to breakage of the center rail, short life, and multi-maintenance asymmetrical high manganese steel whole-cast fork core combination frog, which belongs to the field of high frog manufacturing. Background technique [0002] The seamless line eliminates the rail joints and provides a continuous and smooth running track surface for the train. It is a key technology to ensure the safety of the train, improve the comfort of the train and reduce the maintenance cost of the railway. The seamless track has become the main track structure form of the main railway line...

Claims

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Application Information

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IPC IPC(8): E01B7/12
CPCE01B7/12
Inventor 费维周雷洁孙立彬郑会锋袁宝军
Owner CHINA RAILWAY BAOJI BRIDGE GRP