CN111622024A

CN111622024A - Improved alloy steel point rail combined frog for groove rail

Info

Publication number: CN111622024A
Application number: CN201911224011.7A
Authority: CN
Inventors: 张立军; 方津; 谢伟华; 樊小平; 李永茂; 刘翠华; 周芝芬; 费维周
Original assignee: Zhejiang Bell Railway Equipment Co ltd; Tieke Beijing Track Equipment Technology Co ltd
Current assignee: Zhejiang Bell Railway Equipment Co ltd; Tieke Beijing Track Equipment Technology Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-09-04

Abstract

The invention relates to the field of railway tracks, in particular to an improved alloy steel point rail combined frog of a groove rail. Comprises a combined point rail and a wing rail; the combined point rail comprises two point rails and two fork and heel rails, wherein the point rails are alloy steel point rails, and the two fork and heel rails are symmetrically arranged at the tail ends of the point rails; two wing rails are symmetrically arranged on two sides of the combined center rail; the wing rail and the fork and heel rail are respectively composed of a rail head, a rail groove and a rail lip at the top, a rail waist at the middle part and a rail bottom at the bottom; the point rail, the wing rail and the fork and heel rail are connected into a whole through a connecting bolt pair. The wing rail and the fork and the heel rail of the invention adopt groove structures, are connected with the line steel rail in a same-rail type, can meet the welding requirement of a seamless line, solve the problem that the high manganese steel frog is difficult to be connected with the existing line steel rail, provide frog products with high performance, long service life and high safety performance for railway departments, reduce the use, maintenance and curing cost of the railway line and improve the transportation benefit.

Description

Improved alloy steel point rail combined frog for groove rail

Technical Field

The invention relates to the field of railway tracks, in particular to an improved alloy steel point rail combined frog of a groove rail.

Background

At present, railway rails, particularly urban rails, light rails and trams frog are fixed frog, the frog is made of high manganese steel block cast frog, and due to the limitation of materials and structures, the problems of low strength and short service life generally exist, the frog can not be connected with the existing steel rails of the line in the same rail type, the welding requirement of a seamless line can not be met, and great trouble is brought to the maintenance of the engineering.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides an improved channel rail alloy steel point rail combined frog.

In order to solve the above problems, the present invention is implemented by the following technical solutions.

The improved channel rail alloy steel point rail combined frog comprises a combined point rail and a wing rail; the combined point rail comprises two point rails and two fork and heel rails, wherein the point rails are alloy steel point rails, and the two fork and heel rails are symmetrically arranged at the tail ends of the point rails; two wing rails are symmetrically arranged on two sides of the combined center rail; the wing rail and the fork and heel rail are respectively composed of a rail head, a rail groove and a rail lip at the top, a rail waist at the middle part and a rail bottom at the bottom;

the point rail, the wing rail and the fork and heel rail are connected into a whole through a connecting bolt pair.

As an improvement, a spacing iron is arranged between the two wing rails.

As an improvement, the wing rail is embedded and connected with the splicing part of the fork and the heel rail by an arc.

As an improvement, a frog base plate is paved below the combined point rail and the wing rail.

As an improvement, the fork-heel rail and the wing rail can directly adopt the groove-shaped rail with the shape or can process steel into the shape, so that the same-rail connection with the line steel rail is realized, and the driving safety is improved.

As an improvement, the groove-shaped rail is adopted to realize the same-rail type connection with the line steel rail, thereby improving the driving safety.

The point rail is made of high-strength wear-resistant alloy steel materials, so that the high-strength and good wear-resistant performance of the easy-to-wear part of the point rail tip of the frog is guaranteed.

Compared with the prior art, the beneficial effect of this modified structure is:

the wing rail and the fork and the heel rail of the invention adopt groove structures, are connected with the line steel rail in a same-rail type, can meet the welding requirement of a seamless line, solve the problem that the high manganese steel frog is difficult to be connected with the existing line steel rail, provide frog products with high performance, long service life and high safety performance for railway departments, reduce the use, maintenance and curing cost of the railway line and improve the transportation benefit.

Drawings

Figure 1 is a side view of a wing rail and a fork and heel rail of the present invention.

Fig. 2 is a schematic view of a prior art grooved rail.

FIG. 3 is a schematic view of the structure of the combined rail of the present invention.

Fig. 4 is a schematic view of the overall structure of the present invention.

FIG. 5 is a schematic view showing the assembly relationship of the wing rail, the combined center rail, the spacer iron, the bolt connection pair and the like in the present invention.

The reference signs are: the steel rail comprises 1-alloy steel point rail, 2-wing rail, 3-connecting bolt pair, 4-fork heel rail, 5-spacer iron, 6-backing plate and 7-combined point rail.

Detailed Description

The present invention will be described in detail below with reference to the accompanying fig. 1 to 5.

An improved combination frog of a steel point rail of a channel rail alloy as shown in an embodiment of fig. 4 comprises a combination point rail 7 and a wing rail 2;

as shown in fig. 3, the combined point rail 7 comprises a point rail and a fork and heel rail, the point rail is an alloy steel point rail 1, and the fork and heel rail 4 has two and is symmetrically arranged at the tail end of the point rail. The wing rails 2 are symmetrically arranged on two sides of the combined center rail 7, and the splicing parts of the wing rails and the fork and heel rails are connected by adopting arc embedding, so that the whole section of wheel works under the groove rail with the guard rail edge, and the requirement of train running safety is greatly improved.

As shown in fig. 1 and 2, the wing rail 2 and the fork and heel rail 4 are both in a groove shape, and are composed of a rail head, a rail groove and a rail lip at the top, a rail web at the middle part, and a rail bottom at the bottom, and the wing rail 2 and the fork and heel rail 4 can be processed by the existing groove-shaped rail shown in fig. 2, and can also be rolled into similar shapes by steel.

As shown in fig. 4 and 5, a spacer iron 5 is provided between the two wing rails 2. The wing rails 2, the combined point rails 7 and the spacing irons 5 are connected through the bolt connecting pairs 3 and are integrally paved on the frog base plate 6 to meet the passing requirement of a train, and the parts, which are easy to wear, of the harmful space of the frog are made of high-strength wear-resistant alloy steel materials, so that the service life of the frog is greatly prolonged, and the driving safety is guaranteed, as shown in fig. 3.

When the combined center rail 7 is manufactured, the alloy steel center rail 1 and the fork heel rail 4 are processed in advance according to requirements, then are connected into a whole through bolts, and are integrally processed according to technical requirements to serve as the combined center rail 7. The wing rail 2 body is bent and machined as required and then is connected into a whole through bolts. The rest spacing irons 5, the backing plates 6 and the like are processed into parts according to the technical requirements, and the parts are connected and assembled with the combined point rail 7 and the wing rail 2 through bolts to form a frog finished product.

Finally, it is noted that the above lists specific embodiments of the invention. It is obvious that the present invention is not limited to the above embodiments, but many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.

Claims

1. An improved channel rail alloy steel point rail combined frog comprises a combined point rail and a wing rail; the combined point rail is characterized by comprising two point rails and two fork and heel rails, wherein the point rails are alloy steel point rails, and the two fork and heel rails are symmetrically arranged at the tail ends of the point rails; two wing rails are symmetrically arranged on two sides of the combined center rail; the wing rail and the fork and heel rail are respectively composed of a rail head, a rail groove and a rail lip at the top, a rail waist at the middle part and a rail bottom at the bottom;

2. The improved combination frog assembly of channel rail alloy steel point rail according to claim 1, characterized in that a spacer iron is arranged between the two wing rails.

3. The improved combination frog assembly of channel rail alloy steel according to claim 1, wherein said wing rail is connected with said fork and rail joint by arc embedding.

4. The improved combination frog assembly of channel rail alloy steel according to claim 1, wherein frog tie plates are laid under the combination point rail and wing rail.