CN210766200U

CN210766200U - Groove rail with surfacing structure for rhombic crossed turnout

Info

Publication number: CN210766200U
Application number: CN201920930628.XU
Authority: CN
Inventors: 王力红; 吴健康; 疏文龙; 肖波; 鲁子超
Original assignee: Wuhu China Railway Cogifer Track Co Ltd
Current assignee: Wuhu China Railway Cogifer Track Co Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-06-16
Anticipated expiration: 2029-06-20

Abstract

The utility model discloses a groove-shaped rail with a build-up welding structure for rhombic crossed turnouts, relating to the technical field of rails; the groove-shaped rail is welded with a surfacing layer on the inner wall of a rail groove of the groove-shaped rail, and the inner wall is the inner side surface of a rail lip of the groove-shaped rail; the lower side of the surfacing layer covers the bottom of the rail groove, and the upper side of the surfacing layer overflows the rail groove and covers the top end of the rail lip; the utility model discloses a method that surfacing welding goes out the surfacing layer on the groove rail replaces the guardrail, easy operation, the maintenance of being convenient for, save time.

Description

Groove rail with surfacing structure for rhombic crossed turnout

Technical Field

The utility model relates to the technical field of tracks, specifically be a rhombus is cell type rail for crossing switch with build-up welding structure.

Background

With the vigorous construction of modern trams in various cities across the country, at present, a plurality of tram lines are built in cities such as third generation, Suzhou, Guangzhou, Huaian, Beijing, Shanghai and the like in China. The rail is used as an important component of a tramcar system, and due to the design of the wheel rim groove on the non-working edge of the 60R2/59R2 groove type rail, the function of protecting wheels can be achieved, and the derailment of a vehicle can be prevented; at the fork center of the turnout, in order to ensure that vehicles can safely pass through, most basic rails are milled and added with additional guard rails, so that the width of the rail groove of the basic rail is reduced; however, the process is complex in processing, and is not beneficial to later maintenance after installation, and is inconvenient to disassemble and assemble.

SUMMERY OF THE UTILITY MODEL

For solving in switch frog department, the harmful space in rail groove is unfavorable for the vehicle to travel, and the guard rail processing is complicated, maintains inconveniently, the troublesome scheduling problem of dismouting, the utility model designs a rhombus is cell type rail for cross switch with build-up welding structure.

A groove-shaped rail with a build-up welding structure for rhombic crossed turnouts is characterized in that a build-up welding layer is welded on the inner wall of a rail groove of the groove-shaped rail, and the inner wall is the inner side face of a rail lip of the groove-shaped rail; the lower side of the surfacing layer is piled on the groove bottom of the rail groove, and the upper side of the surfacing layer overflows the rail groove and is piled on the top end of the rail lip.

Preferably, the build-up layer includes first build-up layer and second build-up layer, the second build-up layer covers on the first build-up layer, the weld bead of second build-up layer is shorter than the weld bead of first build-up layer, the tip of second build-up layer weld bead with the distance between the tip that first build-up layer corresponds is 20 ~ 50mm, the weld bead of second build-up layer with the even transition of weld bead of first build-up layer.

Preferably, the first overlaying layer and the second overlaying layer are both composed of a plurality of welding beads, and the plurality of welding beads on each layer are overlaid from the bottom of the rail groove to the top of the rail lip in sequence.

Preferably, the last weld bead of the second weld overlay overlies the last weld bead of the first weld overlay and does not contact the top end of the rail lip.

Preferably, the thickness of the surfacing layer is 8mm, wherein the thickness of the first surfacing layer is 4-5 mm, and the thickness of the second surfacing layer is 3-4 mm.

Preferably, both ends of the weld overlay smoothly transition with the grooved rail.

Compared with the prior art, the utility model has the advantages of:

1. the utility model reduces the space of the rail groove by welding the surfacing layer on the groove rail, and the vehicle can safely pass through without milling and adding additional guard rails on the stock rail, the process is simple, the processing is convenient, and the time is saved;

2. if the surfacing layer is worn, only repair welding is needed, and the maintenance is convenient.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a weld overlay of the present invention;

fig. 3 is a schematic view of a weld overlay of the present invention.

Wherein, 1-groove rail, 2-overlaying layer, 3-rail groove, 4-rail lip, 5-first overlaying layer and 6-second overlaying layer.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further explained with reference to the accompanying drawings and the detailed description.

Examples

As shown in fig. 1 to 3, a grooved rail for rhombic crossing turnouts with a bead weld structure is characterized in that a bead weld layer 2 is welded on the inner wall of a rail groove 3 of the grooved rail 1, and the inner wall is the inner side surface of a rail lip 4 of the grooved rail 1; the lower side of the surfacing layer 2 covers the groove bottom of the rail groove 3, and the upper side of the surfacing layer overflows the rail groove 3 and covers the top end of the rail lip 4.

The surfacing layer 2 includes first surfacing layer 5 and second surfacing layer 6, second surfacing layer 6 covers on the first surfacing layer 5, the welding bead of second surfacing layer 6 is shorter than the welding bead of first surfacing layer 5, the tip of the 6 welding beads of second surfacing layer with the distance between the tip that first surfacing layer 5 corresponds is 20 ~ 50mm, the welding bead of second surfacing layer 6 with the welding bead of first surfacing layer 5 evenly passes through.

The first overlaying layer 5 and the second overlaying layer 6 are both composed of a plurality of welding beads, and the plurality of welding beads on each layer are overlaid from the bottom of the rail groove 3 to the top of the rail lip 4 in sequence.

The last bead of the second weld overlay 6 overlies the last bead of the first weld overlay 5 and does not contact the top of the rail lip 4.

The thickness of the surfacing layer 2 is 8mm, wherein the thickness of the first surfacing layer 5 is 4-5 mm, and the thickness of the second surfacing layer 6 is 3-4 mm.

And two ends of the overlaying layer 2 are in smooth transition with the groove-shaped rail 1.

In this embodiment, the overlay layer 2 is a smooth overlay layer 2 obtained by welding and then polishing; a welding rod with high wear resistance is adopted during surfacing; the width of the rail groove 3 of the groove-shaped rail 1 is 36mm before surfacing, and the width of the rail groove 3 of the groove-shaped rail 1 is 28mm after surfacing; the groove bottom of the rail groove 3 is not completely covered by the overlay layer 2; the weld beads of the second weld overlay 6 are each piled up on two adjacent weld beads of the first weld overlay 5, as the second weld bead of the second weld overlay 6 is piled up on the first weld bead and the second weld bead of the first weld overlay 1; the first pass of the second weld overlay 6 is deposited on the groove bottom of the rail groove and the first pass of the first weld layer 5.

The working process and principle are as follows: at the center of a turnout, harmful space can be formed due to the convergence of the rails, and in order to ensure that vehicles can safely pass through the turnout, the utility model discloses a surfacing layer 2 is welded on a stock rail to reduce the space of a rail groove 3, thereby guiding the vehicles and ensuring that the vehicles can safely pass through the turnout; the preheated groove rail 1 is subjected to surfacing welding by adopting a surfacing welding process, and the groove bottom of the rail groove 3 is sequentially subjected to surfacing welding to the top end of the rail lip 4, so that the space of the rail groove 3 is reduced; and polishing the surfacing layer 2 obtained by welding to obtain the finished product.

Based on the above, with the vigorous construction of modern trams in various cities in China, a plurality of tram lines are established in the cities of san, su, guangzhou, huai' an, beijing, shanghai and the like in China at present. The rail is used as an important component of a tramcar system, and due to the design of the wheel rim groove on the non-working edge of the 60R2/59R2 groove type rail 1, the function of protecting wheels can be achieved, and the derailment of a vehicle can be prevented; and in the switch center department of switch, in order to make the vehicle can pass through safely, mill and add extra guardrail on the stock rail mostly, however this kind of technology processing is complicated, and is unfavorable for the later stage maintenance after the installation, and the dismouting is inconvenient.

The utility model reduces the space of the rail groove by welding the surfacing layer on the groove rail, and the vehicle can safely pass through without milling and adding additional guard rails on the stock rail, the process is simple, the processing is convenient, and the time is saved; if the overlaying layer 2 is abraded, only repair welding is needed, and maintenance is convenient.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The groove-shaped rail with the surfacing structure for the rhombic crossed turnout is characterized in that a surfacing layer (2) is welded on the inner wall of a rail groove (3) of the groove-shaped rail (1), and the inner wall is the inner side face of a rail lip (4) of the groove-shaped rail (1); the lower side of the surfacing layer (2) covers the bottom of the rail groove (3), and the upper side of the surfacing layer overflows the rail groove (3) and covers the top end of the rail lip (4).

2. A rhombic cross switch grooved rail with overlay structure according to claim 1, characterized in that the overlay (2) comprises a first overlay (5) and a second overlay (6), the second overlay (6) covers the first overlay (5), the bead of the second overlay (6) is shorter than that of the first overlay (5), the distance between the end of the bead of the second overlay (6) and the end corresponding to the first overlay (5) is 20-50 mm, and the bead of the second overlay (6) and the bead of the first overlay (5) are in uniform transition.

3. The grooved rail with a build-up welding structure for rhombic cross turnouts according to claim 2, characterized in that the first build-up welding layer (5) and the second build-up welding layer (6) are both composed of a plurality of welding beads, and the plurality of welding beads of each layer are built up sequentially from the bottom of the rail groove (3) to the top of the rail lip (4).

4. A rhombic cross turnout channel rail with weld overlay configuration according to claim 3, wherein the last bead of the second weld overlay (6) overlaps the last bead of the first weld overlay (5) and does not contact the top end of the rail lip (4).

5. The grooved rail with the surfacing structure for the rhombic crossed turnout in the claim 2 is characterized in that the thickness of the surfacing layer (2) is 8mm, wherein the thickness of the first surfacing layer (5) is 4-5 mm, and the thickness of the second surfacing layer (6) is 3-4 mm.

6. A grooved rail with a build-up welding structure for rhombic cross turnout according to claim 1, characterized in that both ends of the build-up welding layer (2) are in smooth transition with the grooved rail (1).