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Heavy duty movable-point frog

A core rail and frog technology, which is applied in the field of heavy-duty movable core rail frogs, can solve the problems of poor bending resistance of the core rail section, large traffic interference, and insufficient service life.

Inactive Publication Date: 2009-07-29
顾经文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the low-profile special cross-section rail is lower than the same-sized rail, the bending resistance of the core rail section is poor, which cannot meet the needs of heavy-duty transportation; the existing movable core rail frog is made of ordinary steel rail materials, which has low strength and is not wear-resistant; The rail and the tread of the railway wheel do not match well, and the service life is not long enough; the existing movable frog is long and heavy, and a large crane needs to be used to replace it, and the catenary power is turned off, which greatly interferes with the traffic

Method used

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  • Heavy duty movable-point frog
  • Heavy duty movable-point frog

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Embodiment Construction

[0019] One of the embodiments of the present invention is shown in Fig. 1, Fig. 2, Fig. 3, and Fig. 4. Its structural technical characteristics are: the plane of the tip portion 1 of the heart rail is triangular so that the straight side strands of the heart rail can be driven; The upper part of the side is respectively processed into a convex curve 2 that matches the wheel tread and the shape of the rim, so that the wheel can pass through the center rail smoothly; there is a backing plate 6 under the center rail to support the center rail, and the center rail can slide on the backing plate; the wing rail The relative position of the wing rail can be maintained by connecting at least one limit rail support 7 with the backing plate 6 through fasteners: the hook lock 8 of the core rail has a groove-shaped cross-sectional structure 9 or a hook-groove type matching with the core rail bottom 14 The section structure 10 can pull the core rail through the movement of the hook lock; th...

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Abstract

The invention discloses a movable-point crossing with long service life which is made of bainitic steel and in which the point is inosculated favorably with the tyre tread of railway. The movable-point crossing wing rail is made of AT rail and the long-short point is made of ordinary steel rail and matched with a groove-shaped coupler lock; the point of the movable-point crossing is formed by combining long points and short points; elastic bendable section and crossing root rail of the point are cancelled, the root thereof having a movable joint so as to form shortened form. Being light in weight, the shortened-form movable-point crossing can be replaced without large cranes.

Description

Technical field: [0001] The present invention is a component in a railway turnout, a movable frog which can be rolled, welded and machined to guide vehicles into different tracks. Background technique: [0002] Existing movable core rail frogs are cast with ordinary steel rails or high manganese steel, and the core rails are manufactured with low-profile special-section steel rails. Because the low-profile special cross-section rail is lower than the same-sized rail, the bending resistance of the core rail section is poor, which cannot meet the needs of heavy-duty transportation; the existing movable core rail frog is made of ordinary steel rail materials, which has low strength and is not wear-resistant; The rails do not fit well with the treads of the railway wheels, and the service life is not long enough; the existing movable frogs are long and heavy, and a large crane is needed to replace them, and the catenary power is turned off, which greatly interferes with the traf...

Claims

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Application Information

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IPC IPC(8): E01B7/10E01B13/02
Inventor 顾经文
Owner 顾经文
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