CN215668761U

CN215668761U - Movable point rail frog

Info

Publication number: CN215668761U
Application number: CN202122244355.3U
Authority: CN
Inventors: 施庆峰; 闫宇青; 孙立彬; 李文博; 李春强; 雷洁
Original assignee: China Railway Baoji Bridge Group Co Ltd
Current assignee: China Railway Baoji Bridge Group Co Ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-01-28
Anticipated expiration: 2031-09-16

Abstract

The embodiment of the utility model relates to a movable point rail frog. The method comprises the following steps: the wing rail set, the mosaic block set, the long center rail, the short center rail and the fork and heel rail; the wing rail group comprises a first wing rail and a second wing rail which are arranged at intervals, the toe end of the first wing rail is connected with the first guide rail of the guide rail group, and the toe end of the second wing rail is connected with the second guide rail of the guide rail group; the mosaic block group comprises a first mosaic block and a second mosaic block, wherein the first mosaic block is arranged between the bending point of the wing rail group and a preset position, and is fixedly connected with the inner side of the first wing rail and the inner side of the second wing rail on the opposite inner side surfaces of the first wing rail and the second wing rail; the long center rail is positioned between the first wing rail and the second wing rail, and the end part of the long center rail is arranged at the throat part of the second wing rail; the short center rail is arranged between the first wing rail and the second wing rail and fixedly connected to the side wall of the long center rail close to the second wing rail; the fork and the heel rail are arranged between the first wing rail and the second wing rail and fixedly connected to the side wall of the short center rail close to the second wing rail.

Description

Movable point rail frog

Technical Field

The embodiment of the utility model relates to the technical field of rail transit, in particular to a movable point rail frog.

Background

The connection of a rolling stock from one track branch into or over another track and the crossing equipment branch is called a switch. The turnout is an important component of a railway track structure, and can be realized without the help of the turnout in railway transportation services such as train arrival, concession, overtaking, locomotive pick-up, vehicle shunting, compilation, locomotive vehicle preparation and repair, cargo loading and unloading operation and the like. The movable point rail frog is a frog type of a turnout, has the advantages of continuous tracks, good smoothness, high passing speed, high safety and the like, is widely applied, and adopts movable point rail frog technology for domestic speed-up turnouts, quasi-high-speed turnouts, high-speed turnouts and foreign high-speed turnouts. The movable point rail frog has no harmful space, and strong vibration and impact generated when a train passes through the frog are eliminated to a certain extent, so that the running smoothness and comfort of the train are greatly improved.

In the related art, the wing rail of the movable point rail frog adopts a special section, and the special section is small in size and small in market consumption, so that the movable point rail frog corresponding to a standard rail type, namely a symmetrical section rail, is high in manufacturing cost, or the movable point rail frog cannot be designed and manufactured due to the fact that the special section wing rail with the corresponding size cannot be found, and the rail head of the wing rail is easy to wear in the using process, so that the service life of the rail is shortened.

Accordingly, there is a need to ameliorate one or more of the problems with the related art solutions described above.

It is noted that this section is intended to provide a background or context to the embodiments of the utility model that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.

SUMMERY OF THE UTILITY MODEL

It is an object of embodiments of the present invention to provide a movable point frog that overcomes, at least to some extent, one or more of the problems associated with the limitations and disadvantages of the related art.

According to a first aspect of embodiments of the present invention there is provided a movable point frog comprising:

the wing rail set comprises a first wing rail and a second wing rail which are arranged at intervals, wherein the toe end of the first wing rail is connected with the first guide rail of the guide rail set, and the toe end of the second wing rail is connected with the second guide rail of the guide rail set;

the mosaic block group comprises a first mosaic block fixedly connected with the inner side of the first wing rail and a second mosaic block fixedly connected with the inner side of the second wing rail, wherein the first mosaic block and the second mosaic block are arranged between the bending point of the wing rail group and a preset position;

the long center rail is positioned between the first wing rail and the second wing rail, and the end part of the long center rail is arranged at the throat part of the second wing rail;

the short center rail is arranged between the first wing rail and the second wing rail and fixedly connected to the side wall, close to the second wing rail, of the long center rail;

the fork and heel rail is arranged between the first wing rail and the second wing rail and fixedly connected to the side wall of the short center rail close to the second wing rail;

wherein each of the first mosaic block and the second mosaic block comprises a main body segment with the same height as the wing rail set, a first extension segment arranged at one end of the main body segment from the throat part of the wing rail set to the bending point, and a second extension segment arranged at the other end of the main body segment from the end part to a preset position; the width of the first extension section is gradually changed to 0 from the throat part to the bending point, and the height of the first extension section is gradually reduced from the width of the first extension section of 30mm to the bending point; the length of the second extension section is 300mm-500mm, and the width of the second extension section gradually becomes 0 and the height gradually becomes shorter from the end part of the main body section to a preset position; the lowest height of the first and second extensions is 10mm from the height of the main body segment.

In an embodiment of the present invention, the first wing rail and the second wing rail are symmetric-section steel rails, and the first wing rail and the second wing rail include a rail head, a rail bottom, and a rail web connecting the rail head and the rail bottom.

In an embodiment of the utility model, the preset position of the wing rail set is 50mm-80mm of the rail head size of the section of the long center rail.

In an embodiment of the present invention, the first mosaic block and the second mosaic block are inverted L-shaped, and an inverted funnel-shaped cavity is formed between the inverted L-shaped first mosaic block and the second mosaic block; a sliding bed bedplate is arranged in the cavity, and the end part of the long center rail is connected with the sliding bed bedplate in a sliding way.

In an embodiment of the utility model, the shapes of the vertical parts of the inverted L-shaped first mosaic block and the inverted L-shaped second mosaic block and the contact surfaces of the first wing rail and the second wing rail are matched with the shapes of the first wing rail and the second wing rail.

In an embodiment of the utility model, the widths of the widest positions of the vertical parts of the inverted-L-shaped first mosaic block and the inverted-L-shaped second mosaic block are 30-55mm, and the widths of the widest positions of the transverse parts of the inverted-L-shaped first mosaic block and the inverted-L-shaped second mosaic block are 50-80 mm.

In an embodiment of the present invention, the first mosaic block and the second mosaic block are integrally formed with the slide bed plate.

In an embodiment of the utility model, the first insert and the second insert are fixedly connected to the first wing rail and the second wing rail respectively through bolts.

In an embodiment of the present invention, the first insert and the second insert are made of forged alloy steel or cast high manganese steel.

In one embodiment of the present invention, the forged alloy steel has a hardness of 360HBW or more, and the cast high manganese steel has a hardness of 229HBW or more.

The technical scheme provided by the embodiment of the utility model can have the following beneficial effects:

in the embodiment of the utility model, the movable point rail frog is provided with the mosaic blocks from the throats of the wing rail sets to the preset positions, the wing rails at the positions are seriously worn and consumed, the strength and the wear resistance of the rail head parts of the wing rail sets are enhanced through the mosaic blocks, the stress state of the wing rail sets is improved, the wear consumption of the wing rail sets is reduced, and the service life of the rail frog is prolonged; and the mosaic block has simple structure, is easy to process, manufacture and assemble and is convenient to replace.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

FIG. 1 shows a schematic diagram of a movable point frog construction in an exemplary embodiment of the utility model;

FIG. 2 illustrates a schematic cross-sectional view of a movable point frog A-A in an exemplary embodiment of the utility model;

FIG. 3 illustrates a schematic cross-sectional view of a movable point frog B-B in an exemplary embodiment of the utility model;

FIG. 4 illustrates a schematic cross-sectional view of a movable point frog C-C in an exemplary embodiment of the utility model;

fig. 5 shows a schematic cross-sectional view of a movable point frog D-D in an exemplary embodiment of the utility model.

Wherein: 101-first rail, 102-second rail, 201-first wing rail, 202-second wing rail, 203-toe end of first wing rail, 204-toe end of second wing rail, 205-inflection point, 206-preset position, 207-first mosaic, 208-second mosaic, 209-slide bed platen, 210-throat, 301-long center rail, 302-short center rail, 303-fork heel rail, 304-spacer iron, 305-top iron.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of embodiments of the utility model, which are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.

The exemplary embodiment first provides a movable point frog. Referring to fig. 1, the movable point frog may comprise: a wing rail group, a mosaic group, a long center rail 301, a short center rail 302 and a fork and heel rail 303; the wing rail set comprises a first wing rail 201 and a second wing rail 202 which are arranged at intervals, wherein the toe end 203 of the first wing rail is connected with the first guide rail 101 of the guide rail set, and the toe end 204 of the second wing rail is connected with the second guide rail 102 of the guide rail set; the mosaic block group comprises a first mosaic block 207 fixedly connected with the inner side of the first wing rail 201 and a second mosaic block 208 fixedly connected with the inner side of the second wing rail 202, wherein the first mosaic block is arranged between a bending point 205 of the wing rail group and a preset position 206, and the first mosaic block 207 and the second mosaic block are arranged on the opposite inner side surfaces of the first wing rail 201 and the second wing rail 202; the long center rail 301 is located between the first wing rail 201 and the second wing rail 202, and the end part of the long center rail is arranged at the throat part 210 of the second wing rail 202; the short core rail 302 is arranged between the first wing rail 201 and the second wing rail 202 and fixedly connected to the side wall of the long core rail 301 close to the second wing rail 202; the fork-heel rail 303 is disposed between the first wing rail 201 and the second wing rail 202, and is fixedly connected to the side wall of the stub rail 302 close to the second wing rail 202. Wherein each of the first mosaic piece 207 and the second mosaic piece 208 includes a main body segment having the same height as the wing rail set, a first extension segment disposed at one end of the main body segment from the throat 210 of the wing rail set to the inflection point 205, and a second extension segment disposed at the other end of the main body segment from the end to a predetermined position 206; the width of the first extension gradually changes to 0 from the throat 210 to the bending point 205, and the height of the first extension gradually decreases from the width of the first extension of 30mm to the bending point 205; the length of the second extension segment is 300mm-500mm, the width of the second extension segment gradually becomes 0 and the height gradually becomes short from the end of the main body segment to a preset position 206; the lowest height of the first and second extensions is 10mm from the height of the main body segment.

Specifically, a first mosaic block 207 fixedly connected with the inner side of the first wing rail 201 and a second mosaic block 208 fixedly connected with the inner side 202 of the second wing rail are arranged on the opposite sides of the first wing rail 201 and the second wing rail 202 from a bending point 205 to a preset position 206, the height of the main body sections of the first mosaic block 207 and the second mosaic block 208 is the same as that of the first wing rail 201 and the second wing rail 202, so that the pressure on a part of the first wing rail 201 and the second wing rail 202 can be shared during the use of the rail, the stress state of a wing rail set is improved, the abrasion of the rail heads of the first wing rail 201 and the second wing rail 202 is reduced, and the first extension section and the second extension section are designed to be gradually narrowed and gradually shortened, so that the first mosaic block and the second mosaic block are convenient to install on one hand, and the first extension section and the second extension section can be well engaged with the wing rail set on the other hand, and a transition process is provided, so that the section of the rail at the end part of the mosaic block group is not suddenly changed, and potential safety hazards to trains are avoided to a greater extent. Wing rail group, long heart rail 301 and short heart rail 302's cross section department, be provided with interval iron 304 between long heart rail 301 and the short heart rail 302, one side that first wing rail 201 is located long heart rail 301 is provided with top iron 305, one side that second wing rail 202 is located short heart rail 302 is provided with top iron 305, interval iron 304 with top iron 305 all sets up through the bolt fastening.

According to the movable point rail frog, the inlaying blocks are arranged from the bending point 205 of the wing rail set to the preset position 206, the wing rail at the position is seriously worn and consumed, the strength and the wear resistance of the rail head part of the wing rail set are enhanced through the inlaying blocks, the stress state of the wing rail set is improved, the wear consumption of the wing rail set is reduced, and the service life of the rail frog is prolonged; and the mosaic block has simple structure, is easy to process, manufacture and assemble and is convenient to replace.

Next, each part of the above-described movable point frog in the present exemplary embodiment will be described in more detail with reference to fig. 1 to 5.

In one embodiment, the first wing rail 201 and the second wing rail 202 may be symmetrical section rails, and the first wing rail 201 and the second wing rail 202 include a rail head, a rail bottom, and a rail web connecting the rail head and the rail bottom. Specifically, the symmetrical section steel rail is simple to design and manufacture and low in manufacturing cost, the first wing rail 201 and the second wing rail 202 can adopt 60kg/m symmetrical quasi-section steel rails, compared with a movable point rail frog structure adopting special section wing rails, the wing rails are easier to obtain materials, and because the guide rails are mostly used as the steel rails with standard sections, the toe ends of the wing rails are more convenient to connect with the guide rails.

In one embodiment, the predetermined position of the wing rail set may be 80mm of the head dimension of the cross section of the long center rail 301. Specifically, the preset position is a small section size of the long rail 301, specifically a section size of the rail head size of 80mm, and a first mosaic block 207 and a second mosaic block 208 are arranged between the small section size and the bending point 205, so that the stress dispersion capability of the wing rail set is optimal.

In one embodiment, first mosaic piece 207 and second mosaic piece 208 may be inverted L-shaped, and an inverted funnel-shaped cavity is formed between first mosaic piece 207 and second mosaic piece 208; a sliding bed bedplate 209 is arranged in the cavity, and the end part of the long center rail 301 is connected with the sliding bed bedplate 209 in a sliding way. Specifically, the first mosaic block 207 and the second mosaic block 208 are arranged in an inverted L shape, so that on one hand, the contact area between the first mosaic block 207 and the plane of the wing rail head and the horizontal plane of the wing rail head is larger, and the stress dispersion effect on the wing rail group is better; on the other hand, the first mosaic block 207 and the second mosaic block 208 are arranged on the slide bed plate 209 to form an inverted funnel-shaped cavity, and at the moment, the end part of the long center rail 301 can slide on the slide bed plate 209 freely without being influenced by the first mosaic block 207 and the second mosaic block 208 when sliding on the slide bed plate 209.

In one embodiment, the shapes of the vertical portions of the inverted-L-shaped first mosaic block 207 and the inverted-L-shaped second mosaic block 208 and the contact surfaces of the first wing rail 201 and the second wing rail 202 are matched with the shapes of the first wing rail 201 and the second wing rail 202. Specifically, first wing rail 201 and second wing rail 202 are the I shape, and the first mosaic block 207 of the type of falling L and the setting of the second mosaic block 208 of the type of falling L are on the relative side of first wing rail 201 and second wing rail 202, and this side is the spill side, consequently makes the face and first wing rail 201 and second wing rail 202 side shape matching that first mosaic block 207 and second mosaic block 208 and first wing rail 201 and second wing rail 202 contacted respectively, can make its interlock connect, connect more firm, and the wholeness can be better.

In one embodiment, the widths of the vertical portions of the first and second reverse-

L inlays

207 and 208 at the widest positions thereof may be 30-55mm, and the widths of the horizontal portions at the widest positions thereof may be 50-80 mm. Specifically, when the width of the widest position of the vertical portion and the width of the horizontal portion of each of inverted-L first mosaic block 207 and inverted-L second mosaic block 208 are within the above size ranges, the stress dispersion capability of first mosaic block 207 and second mosaic block 208 to the wing rail group is optimal, and the replacement cycle is shorter.

In one embodiment, the first mosaic piece 207 and the second mosaic piece 208 may be integrally formed with the slider bed plate 209. Specifically, the first mosaic piece 207, the second mosaic piece 208 and the slide bed platform 209 may be an integrally formed integral structure, and when the first mosaic piece 207, the second mosaic piece 208 and the slide bed platform 209 are integral structures, the integral structures are installed by penetrating from the preset position 206 of the wing rail set to the bending point 205 during installation.

In one embodiment, the first mosaic block 207 and the second mosaic block 208 are fixedly connected with the first wing rail 201 and the second wing rail 202 through bolts, respectively. Specifically, the first mosaic block 207 and the second mosaic block 208 may also be fixedly connected with the first wing rail 201 and the second wing rail 202 through other manners.

In one embodiment, first insert 207 and second insert 208 are both formed of a forged alloy steel or a cast high manganese steel. Specifically, the first insert 207 and the second insert 208 should be made of a wear-resistant material, and may be made of forged alloy steel or cast high manganese steel, or may be made of other materials, which is not limited herein.

In one embodiment, the forged alloy steel has a hardness of 360HBW or greater and the cast high manganese steel has a hardness of 229HBW or greater. Specifically, the first insert 207 and the second insert 208 made of forged alloy steel or cast high manganese steel having the above hardness parameter have a short replacement period and a long service life.

It is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like in the foregoing description are used for indicating or indicating the orientation or positional relationship illustrated in the drawings, and are used merely for convenience in describing embodiments of the present invention and for simplifying the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In embodiments of the utility model, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.

Claims

1. A movable point frog comprising:

2. The movable point rail frog in accordance with claim 1 wherein said first wing rail and said second wing rail are symmetrical section rails, said first wing rail and said second wing rail comprising a head, a foot, and a web connecting said head and said foot.

3. The movable point frog assembly of claim 2 wherein said predetermined set of wing rails is 80mm of the head width dimension of said long point rail.

4. The movable point frog of claim 3 wherein said first and second inserts are inverted L-shaped, said inverted L-shaped first and second inserts defining an inverted funnel-shaped cavity therebetween; a sliding bed bedplate is arranged in the cavity, and the end part of the long center rail is connected with the sliding bed bedplate in a sliding way.

5. The movable point rail frog of claim 4 wherein the vertical portions of said inverted L-shaped first and second inserts and said first and second wing rails have a shape matching the shape of said first and second wing rails.

6. The movable point frog of claim 5 wherein said first and second inserts have a width of 30-55mm at the widest point of the vertical portion and 50-80 mm at the widest point of the transverse portion.

7. The movable point frog in claim 5 wherein said first and second inserts are integrally formed with said slider bed plate.

8. The movable point rail frog in claim 7 wherein said first and second inserts are fixedly attached to said first and second wing rails by bolts, respectively.

9. The movable point frog assembly of any of claims 1-8 wherein said first insert and said second insert are each made of a forged alloy steel or a cast high manganese steel.

10. The movable point frog in claim 9 wherein said forged alloy steel has a hardness of 360HBW or greater and said cast high manganese steel has a hardness of 229HBW or greater.