A movable heart rail frog

Abstract

The embodiment of the present invention is about a movable heart rail frog. It includes: a wing rail group, an inlay block group, a long heart rail, a short heart rail and a fork heel rail; the wing rail group includes a first wing rail and a second wing rail arranged at intervals, the toe end of the first wing rail is connected to the first rail of the guide rail group, and the toe end of the second wing rail is connected to the second rail of the guide rail group; the inlay block group includes a first inlay block fixedly connected to the inner side of the first wing rail and a second inlay block fixedly connected to the inner side of the second wing rail, which are arranged between the bending point of the wing rail group and the preset position, on the relative inner side surfaces of the first wing rail and the second wing rail; the long heart rail is located between the first wing rail and the second wing rail, and its end is arranged at the throat of the second wing rail; the short heart rail is arranged between the first wing rail and the second wing rail, and is fixedly connected to the side wall of the long heart rail close to the second wing rail; the fork heel rail is arranged between the first wing rail and the second wing rail, and is fixedly connected to the side wall of the short heart rail close to the second wing rail.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of rail transportation technology, and in particular to a movable frog. Background Art

[0002] The connecting and crossing equipment branch where locomotives and vehicles enter or cross from one line is called a turnout. Turnouts are an important part of the railway track structure. The arrival and departure of trains, passing, overtaking, locomotive uncoupling, vehicle shunting, marshaling, locomotive and vehicle maintenance and repair, cargo loading and unloading operations in railway transportation business can only be achieved with the help of turnouts. The movable heart rail frog is a type of turnout. The frog has the advantages of continuous track, good smoothness, high passing speed and high safety, and is widely used. Domestic speed-up turnouts, quasi-high-speed turnouts, high-speed turnouts, and foreign high-speed turnouts all use movable heart rail frog technology. The movable heart rail frog does not have "harmful space", which eliminates the strong vibration and impact generated when the train passes through the frog to a certain extent, greatly improving the smoothness and comfort of train operation.

[0003] In the related art, the movable heart rail frog wing rails adopt special sections. Due to their special size and small market demand, they are not easy to obtain, resulting in high manufacturing costs for movable heart rail frogs corresponding to some standard rail types, i.e., symmetrical section rails, or they cannot be designed and manufactured because special section wing rails of corresponding sizes cannot be found. In addition, the wing rail heads are more likely to wear during use, resulting in a reduced service life of the rails.

[0004] Therefore, it is necessary to improve one or more problems existing in the above-mentioned related technical solutions.

[0005] It should be noted that this section is intended to provide a background or context to embodiments of the invention recited in the claims. No admission is made that the description herein is prior art by inclusion in this section. Summary of the invention

[0006] The purpose of the embodiments of the present invention is to provide a movable frog, thereby overcoming one or more problems caused by the limitations and defects of the related art at least to a certain extent.

[0007] According to a first aspect of an embodiment of the present invention, there is provided a movable frog, comprising:

[0008] A wing rail group, comprising a first wing rail and a second wing rail arranged at an interval, wherein a toe end of the first wing rail is connected to a first rail of the rail group, and a toe end of the second wing rail is connected to a second rail of the rail group;

[0009] The mosaic block group includes a first mosaic block fixedly connected to the inner side of the first wing rail and a second mosaic block fixedly connected to the inner side of the second wing rail, which are arranged between the bending point of the wing rail group and the preset position, on the inner side opposite to the first wing rail and the second wing rail;

[0010] a long center rail, located between the first wing rail and the second wing rail, with an end portion disposed at the throat of the second wing rail;

[0011] A short center rail, disposed between the first wing rail and the second wing rail, and fixedly connected to a side wall of the long center rail close to the second wing rail;

[0012] A fork rail, disposed between the first wing rail and the second wing rail, and fixedly connected to a side wall of the short center rail close to the second wing rail;

[0013] Wherein, the first mosaic block and the second mosaic block both include a main body section with the same height as the wing rail group, a first extension section arranged at one end of the main body section from the throat of the wing rail group to the bending point, and a second extension section arranged at the other end of the main body section from the end to a preset position; the width of the first extension section gradually becomes 0 from the throat to the bending point, and the height of the first extension section gradually becomes shorter from 30mm of the first extension section width 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 of the main body section to the preset position; the lowest height of the first extension section and the second extension section differs by 10mm from the height of the main body section.

[0014] In one embodiment of the present invention, the first wing rail and the second wing rail are steel rails with symmetrical cross-sections, and the first wing rail and the second wing rail include a rail head, a rail bottom, and a rail waist connecting the rail head and the rail bottom.

[0015] In one embodiment of the present invention, the preset position of the wing rail assembly is where the rail head size of the long center rail section is 50 mm-80 mm.

[0016] In one 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 slide bed plate is arranged in the cavity, and the end of the long center rail is slidably connected to the slide bed plate.

[0017] In one embodiment of the present invention, the contact surface shapes of the vertical portions of the inverted L-shaped first mosaic block and the inverted L-shaped second mosaic block with the first wing rail and the second wing rail match the shapes of the first wing rail and the second wing rail.

[0018] In one embodiment of the present invention, the width of the widest position of the vertical portion of the inverted L-shaped first mosaic block and the inverted L-shaped second mosaic block is 30-55 mm, and the width of the widest position of the horizontal portion is 50 mm-80 mm.

[0019] In one embodiment of the present invention, the first mosaic block and the second mosaic block are integrally formed with the slide bed platen.

[0020] In one embodiment of the present invention, the first mosaic block and the second mosaic block are fixedly connected to the first wing rail and the second wing rail respectively by bolts.

[0021] In one embodiment of the present invention, the first mosaic block and the second mosaic block are both made of forged alloy steel or cast high manganese steel.

[0022] In one embodiment of the present invention, the hardness of the forged alloy steel is greater than or equal to 360 HBW, and the hardness of the cast high manganese steel is greater than or equal to 229 HBW.

[0023] The technical solution provided by the embodiments of the present invention may have the following beneficial effects:

[0024] In the embodiment of the present invention, the movable heart rail frog is provided with an inlay block from the throat of the wing rail group to the preset position. The wing rail at this position is severely worn and consumed. The inlay block is provided to enhance the strength and wear resistance of the head of the wing rail group, improve the stress state of the wing rail group, reduce the wear and consumption of the wing rail group, and increase the service life of the frog. In addition, the inlay block has a simple structure, is easy to manufacture and assemble, and is convenient to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0026] Figure 1 A schematic diagram of a movable frog structure in an exemplary embodiment of the present invention is shown;

[0027] Figure 2 A schematic diagram of the cross-sectional structure of a movable frog AA in an exemplary embodiment of the present invention is shown;

[0028] Figure 3 A schematic diagram showing a cross-sectional structure of a movable heart rail frog BB in an exemplary embodiment of the present invention is shown;

[0029] Figure 4A schematic diagram showing a cross-sectional structure of a movable heart rail frog CC in an exemplary embodiment of the present invention is shown;

[0030] Figure 5 A schematic diagram of the cross-sectional structure of a movable frog DD in an exemplary embodiment of the present invention is shown.

[0031] Among them: 101-first guide rail, 102-second guide rail, 201-first wing rail, 202-second wing rail, 203-toe end of the first wing rail, 204-toe end of the second wing rail, 205-bending point, 206-preset position, 207-first inlay block, 208-second inlay block, 209-slide bed plate, 210-throat, 301-long center rail, 302-short center rail, 303-fork heel rail, 304-spacer iron, 305-top iron. DETAILED DESCRIPTION

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the present invention will be more comprehensive and complete and fully convey the concepts of the 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.

[0033] In addition, the accompanying drawings are only schematic illustrations of embodiments of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings represent the same or similar parts, and their repeated descriptions will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0034] In this exemplary embodiment, a movable frog is first provided. Figure 1As shown in, the movable heart rail frog may include: a wing rail group, an inlay block group, a long heart rail 301, a short heart rail 302 and a fork heel rail 303; the wing rail group includes a first wing rail 201 and a second wing rail 202 arranged at intervals, the toe end 203 of the first wing rail is connected to the first guide rail 101 of the guide rail group, and the toe end 204 of the second wing rail is connected to the second guide rail 102 of the guide rail group; the inlay block group includes a first inlay block 201 and a first inlay block 202, which are arranged between the bending point 205 of the wing rail group and the preset position 206, and are fixedly connected to the inner side of the first wing rail 201 and the second wing rail 202. The inlaid block 207 and the second inlaid block 208 fixedly connected to the inner side of 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 its end is arranged at the throat 210 of the second wing rail 202; the short center rail 302 is arranged between the first wing rail 201 and the second wing rail 202, and is fixedly connected to the side wall of the long center rail 301 close to the second wing rail 202; the fork heel rail 303 is arranged between the first wing rail 201 and the second wing rail 202, and is fixedly connected to the side wall of the short center rail 302 close to the second wing rail 202. Wherein, the first mosaic block 207 and the second mosaic block 208 both include a main body section with the same height as the wing rail group, a first extension section arranged at one end of the main body section from the throat 210 of the wing rail group to the bending point 205, and a second extension section arranged at the other end of the main body section from the end to the preset position 206; the width of the first extension section gradually changes to 0 from the throat 210 to the bending point 205, and the height of the first extension section gradually decreases from 30mm of the first extension section width to the bending point 205; the length of the second extension section is 300mm-500mm, and the width of the second extension section gradually changes to 0 and the height gradually decreases from the end of the main body section to the preset position 206; the lowest height of the first extension section and the second extension section differs by 10mm from the height of the main body section.

[0035] Specifically, a first mosaic block 207 fixedly connected to the inner side of the first wing rail 201 and a second mosaic block 208 fixedly connected to the inner side of the second wing rail 202 are arranged between the bending point 205 and the preset position 206 on the opposite sides of the first wing rail 201 and the second mosaic block 208 fixedly connected to the inner side of the second wing rail 202. The height of the main sections of the first mosaic block 207 and the second mosaic block 208 are the same as those of the first wing rail 201 and the second wing rail 202, so that a part of the pressure on the first wing rail 201 and the second wing rail 202 can be shared during the use of the track, thereby improving the stress state of the wing rail group and reducing the wear of the rail heads of the first wing rail 201 and the second wing rail 202. The first extension section and the second extension section are designed to be gradually narrowed and shortened, which, on the one hand, facilitates the installation of the first mosaic block and the second mosaic block, and on the other hand, can be well embedded with the wing rail group through the first extension section and the second extension section, and there is a transition process, so that the cross-section of the track at the end of the mosaic block group is not abrupt, and will not cause unsafe hidden dangers to the train to a large extent. At the cross section of the wing rail group, the long center rail 301 and the short center rail 302, a spacer iron 304 is arranged between the long center rail 301 and the short center rail 302, a top iron 305 is arranged on the side of the first wing rail 201 located at the long center rail 301, and a top iron 305 is arranged on the side of the second wing rail 202 located at the short center rail 302, and the spacer iron 304 and the top iron 305 are both fixed by bolts.

[0036] The movable heart rail frog is provided with an inlay block at the bending point 205 to the preset position 206 of the wing rail group. The wing rail at this position is seriously worn and consumed. The inlay block is provided to enhance the strength and wear resistance of the head of the wing rail group, improve the stress state of the wing rail group, reduce the wear and consumption of the wing rail group, and increase the service life of the frog. In addition, the inlay block has a simple structure, is easy to manufacture and assemble, and is convenient to replace.

[0037] Next, we will refer to Figures 1 to 5 The respective parts of the movable frog in the present exemplary embodiment will be described in more detail.

[0038] In one embodiment, the first wing rail 201 and the second wing rail 202 may be symmetrical cross-section steel rails, and the first wing rail 201 and the second wing rail 202 include a rail head, a rail bottom, and a rail waist connecting the rail head and the rail bottom. Specifically, the symmetrical cross-section steel rail is simple to design and manufacture, and has a low manufacturing cost. The first wing rail 201 and the second wing rail 202 may adopt a 60kg / m symmetrical quasi-section steel rail. Compared with the movable heart rail frog structure using a special cross-section wing rail, it is easier to obtain materials for the wing rails, and since most guide rails use standard cross-section steel rails, it is more convenient to connect the toe end of the wing rail to the guide rail.

[0039] In one embodiment, the preset position of the wing rail assembly may be at a section head dimension of 80 mm of the long center rail 301. Specifically, the preset position is at a small section dimension of the long center rail 301, specifically at a section dimension of 80 mm of the rail head. The first mosaic block 207 and the second mosaic block 208 are arranged between this dimension and the bending point 205, which optimizes the force dispersion capability of the wing rail assembly.

[0040] In one embodiment, the first mosaic block 207 and the second mosaic block 208 may be in an inverted L-shape, and an inverted funnel-shaped cavity is formed between the inverted L-shaped first mosaic block 207 and the second mosaic block 208; a slide bed plate 209 is arranged in the cavity, and the end of the long center rail 301 is slidably connected to the slide bed plate 209. Specifically, the first mosaic block 207 and the second mosaic block 208 are arranged in an inverted L-shape, on the one hand, the contact area of ​​the first mosaic block 207 and the second mosaic block 208 with the plane of the wing rail head is larger, so as to better disperse the force of the wing rail group; on the other hand, the slide bed plate 209 is arranged in the inverted funnel-shaped cavity formed between the first mosaic block 207 and the second mosaic block 208, at this time, when the end of the long center rail 301 slides on the slide bed plate 209, it will not be affected by the first mosaic block 207 and the second mosaic block 208, and can slide freely on the slide bed plate 209.

[0041] In one embodiment, the shapes of the contact surfaces of the vertical parts of the inverted L-shaped first mosaic block 207 and the inverted L-shaped second mosaic block 208 with the first wing rail 201 and the second wing rail 202 match the shapes of the first wing rail 201 and the second wing rail 202. Specifically, the first wing rail 201 and the second wing rail 202 are I-shaped, and the inverted L-shaped first mosaic block 207 and the inverted L-shaped second mosaic block 208 are arranged on the side opposite to the first wing rail 201 and the second wing rail 202, which is a concave side. Therefore, the surfaces of the first mosaic block 207 and the second mosaic block 208 contacting the first wing rail 201 and the second wing rail 202 respectively match the shapes of the side surfaces of the first wing rail 201 and the second wing rail 202, so that they can be engaged and connected, the connection is more stable, and the overall performance is better.

[0042] In one embodiment, the width of the widest position of the vertical part of the inverted L-shaped first mosaic block 207 and the inverted L-shaped second mosaic block 208 can be 30-55mm, and the width of the widest position of the horizontal part can be 50mm-80mm. Specifically, when the width of the widest position of the vertical part and the width of the horizontal part of the inverted L-shaped first mosaic block 207 and the inverted L-shaped second mosaic block 208 are within the above size range, the first mosaic block 207 and the second mosaic block 208 have the best force dispersion capacity for the wing rail group and the replacement cycle is shorter.

[0043] In one embodiment, the first mosaic block 207 and the second mosaic block 208 may be integrally formed with the slide bed platen 209. Specifically, the first mosaic block 207 and the second mosaic block 208 may be an integral structure integrally formed with the slide bed platen 209. When the first mosaic block 207 and the second mosaic block 208 are an integral structure with the slide bed platen 209, the integral structure is inserted from the preset position 206 of the wing rail assembly to the bending point 205 for installation.

[0044] In one embodiment, the first mosaic block 207 and the second mosaic block 208 are respectively fixedly connected to the first wing rail 201 and the second wing rail 202 by bolts. Specifically, the first mosaic block 207 and the second mosaic block 208 can also be fixedly connected to the first wing rail 201 and the second wing rail 202 by other means.

[0045] In one embodiment, the first mosaic block 207 and the second mosaic block 208 are both made of forged alloy steel or cast high manganese steel. Specifically, the first mosaic block 207 and the second mosaic block 208 should be made of wear-resistant materials for better effect, and can be made of forged alloy steel or cast high manganese steel, or other materials, which are not specifically limited here.

[0046] In one embodiment, the hardness of the forged alloy steel is greater than or equal to 360 HBW, and the hardness of the cast high manganese steel is greater than or equal to 229 HBW. Specifically, the first mosaic block 207 and the second mosaic block 208 made of forged alloy steel or cast high manganese steel materials with hardness parameters above the above have a shorter replacement cycle and a longer service life.

[0047] The movable heart rail frog is provided with an inlay block at the bending point 205 to the preset position 206 of the wing rail group. The wing rail at this position is seriously worn and consumed. The inlay block is provided to enhance the strength and wear resistance of the head of the wing rail group, improve the stress state of the wing rail group, reduce the wear and consumption of the wing rail group, and increase the service life of the frog. In addition, the inlay block has a simple structure, is easy to manufacture and assemble, and is convenient to replace.

[0048] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like in the above description indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0050] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the embodiments of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0053] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present invention are indicated by the appended claims.

Claims

1. A movable frog, characterized in that: include: A wing rail group, comprising a first wing rail and a second wing rail arranged at an interval, wherein a toe end of the first wing rail is connected to a first rail of the rail group, and a toe end of the second wing rail is connected to a second rail of the rail group; The mosaic block group includes a first mosaic block fixedly connected to the inner side of the first wing rail and a second mosaic block fixedly connected to the inner side of the second wing rail, which are arranged between the bending point of the wing rail group and the preset position, on the inner side opposite to the first wing rail and the second wing rail; a long center rail, located between the first wing rail and the second wing rail, with an end portion disposed at the throat of the second wing rail; A short center rail, disposed between the first wing rail and the second wing rail, and fixedly connected to a side wall of the long center rail close to the second wing rail; A fork rail, disposed between the first wing rail and the second wing rail, and fixedly connected to a side wall of the short center rail close to the second wing rail; Wherein, the first mosaic block and the second mosaic block each include a main body section of the same height as the wing rail group, a first extension section arranged at one end of the main body section from the throat of the wing rail group to the bending point, and a second extension section arranged at the other end of the main body section from the end to the preset position; the width of the first extension section gradually changes to 0 from the throat to the bending point, and the height of the first extension section gradually decreases from 30mm of the first extension section width to the bending point; the length of the second extension section is 300mm-500mm, and the width of the second extension section gradually changes to 0 and the height gradually decreases from the end of the main body section to the preset position; the lowest height of the first extension section and the second extension section differs by 10mm from the height of the main body section; The first wing rail and the second wing rail are steel rails with symmetrical sections, and the first wing rail and the second wing rail include a rail head, a rail bottom, and a rail waist connecting the rail head and the rail bottom; The preset position of the wing rail assembly is 80 mm of the width of the rail head of the long center rail section; The first mosaic block and the second mosaic block are in an inverted L-shape, and an inverted funnel-shaped cavity is formed between the inverted L-shaped first mosaic block and the second mosaic block; a slide bed plate is arranged in the cavity, and the end of the long center rail is slidably connected to the slide bed plate; The shapes of the contact surfaces between the vertical parts of the first inverted L-shaped mosaic block and the second inverted L-shaped mosaic block and the first wing rail and the second wing rail match the shapes of the first wing rail and the second wing rail; the first wing rail and the second wing rail are I-shaped, and the first inverted L-shaped mosaic block and the second inverted L-shaped mosaic block are arranged on the side opposite to the first wing rail and the second wing rail, and the side is a concave side; The width of the widest position of the vertical part of the inverted L-shaped first mosaic block and the inverted L-shaped second mosaic block is 30-55 mm, and the width of the widest position of the horizontal part is 50 mm-80 mm.

2. The movable frog according to claim 1, characterized in that: The first mosaic block and the second mosaic block are integrally formed with the slide bed plate.

3. The movable frog according to claim 2, characterized in that: The first mosaic block and the second mosaic block are fixedly connected to the first wing rail and the second wing rail respectively through bolts.

4. The movable frog according to any one of claims 1 to 3, characterized in that: The first mosaic block and the second mosaic block are both made of forged alloy steel or cast high manganese steel.

5. The movable frog according to claim 4, characterized in that: The hardness of the forged alloy steel is greater than or equal to 360 HBW, and the hardness of the cast high manganese steel is greater than or equal to 229 HBW.

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