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Rail combination frog

A technology of frogs and rails, applied in tracks, switches, roads, etc., can solve the problems of long manufacturing cycle and complex alloy steel core rail structure and process, and achieve short manufacturing cycle, solve small section eccentricity, and mature technology. Effect

Pending Publication Date: 2018-12-07
CHINA RAILWAY BAOJI BRIDGE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fixed high manganese steel cast frogs cannot meet the requirements of seamless lines. Although alloy steel composite frogs solve the problem of on-site welding of seamless lines, the structure of alloy steel core rails is complicated and the manufacturing cycle is long.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: with reference to attached Figure 1-6 . A combined rail frog is assembled by two symmetrical wing rails 3 and 4, long core rails 1, short core rails 2 and spacer rails 5 with the same bending angle through high-strength bolts 6. The bending angles of the long core rail 1 and the short core rail 2 are the same, both are α / 2; the bending angles of the first wing rail 3 and the second wing rail 4 are the same, both are α. The α is the frog angle. Label 8 is a bolt anti-loosening device, and 7 is a rail washer.

Embodiment 2

[0019] Embodiment 2: On the basis of Embodiment 1, a design method for a combined rail frog, including frogs, the bending angle of the long core rail and the short core rail is the same, both are α / 2, and the long core rail and the short core rail The core rail adopts a sticking tip structure, and spacer iron is set. The bending angle of wing rail 1 and wing rail 2 is the same, both are α, and the bending angle of the two wing rails is the same, both are α. The flange groove of the frog is assembled. Formed by processing to improve the manufacturing accuracy of the frog.

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PUM

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Abstract

The invention relates to a rail combination frog which improves the stress state of the position and improves the frog by adopting a cusp structure between long and short center rails and arranging aspacer iron. The rail combination frog is formed by assembling two symmetrical wing rails and a long center rail with the same bending angle, and the short center rail and the spacer iron are assembled by high-strength bolts. 1That rail combine frog is assembled by two symmetrical we rails and long and short central rails and spacers with the same angle through high-strength bolts, so that the eccentricity of the small cross section of the rail combined frog central rail is solved, the stress state of the central rail is improved, and the service life of the frog is prolonged; Second, the railcombination frog has simple structure, mature technology, short manufacturing cycle and meets the requirements of CWR.

Description

technical field [0001] The invention relates to a steel rail combination frog which improves the force state of the part and raises the frog by adopting a tipped structure between long and short core rails and setting spacer irons, and belongs to the field of frog manufacturing. Background technique [0002] 201010606116.1, titled "An Embedded Combination High Manganese Steel Frog", which has a fork center, fork heel rail and wing rail. The fork center is integrally cast with high-strength wear-resistant materials, and the fork center is embedded between two symmetrically arranged wing rails, and the two wing rails and the fork center are connected and fixed together by bolt connection pairs and rail washers ; The two forks and rails are symmetrically connected and fixed on both sides of the tail of the fork center, and are located between the two wing rails, and the two wing rails are connected to the tail of the fork center and the two wing rails through bolts, rail washer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B7/12
CPCE01B7/12
Inventor 孙立彬冯毅袁宝军李悦
Owner CHINA RAILWAY BAOJI BRIDGE GRP