Movable wing rail frog structure

Abstract

The utility model provides a movable wing rail frog structure, which relates to the technical field of railway tracks and comprises a point rail. The fixed wing rail is arranged on one side of the point rail; the movable wing rail is arranged on the other side of the point rail; and the conversion equipment is connected with the movable wing rail and is used for pulling the movable wing rail to rotate around the toe end of the frog. The design that the point rail is fixed and the wing rails are movable is adopted, the size of an existing frog can be kept unchanged, harmful space is eliminated, vibration and noise are reduced, the blank of frog types is filled, and the requirement for turnout transformation is met. Compared with a traditional movable point rail frog scheme, the movable wing rail frog structure is good in adaptability, does not affect existing station yard arrangement, facilitates engineering implementation, solves the problems that the number of restraining factors is large, and the manufacturing cost is high in movable point rail frog transformation implementation, and remarkably saves engineering investment.

Description

Technical Field

[0001] This utility model relates to the field of railway track technology, and more specifically, to a movable wing rail frog structure. Background Technology

[0002] Currently, most existing turnouts in my country's urban rail transit systems are fixed frog turnouts, which create hazardous spaces and generate significant wheel-rail impact, vibration, and noise. With the deterioration of turnout performance and increasing environmental protection requirements from nearby residents, there is an urgent need to upgrade fixed frogs to movable frogs to eliminate hazardous spaces and achieve vibration and noise reduction.

[0003] All existing movable frogs are movable point frogs, employing a structure where the frog rail moves while the wing rails are fixed. The frog rail rotates and engages with the wing rails, eliminating harmful space and reducing the impact of wheels on the wing rails and frog rails. This design is suitable for turnouts operating at higher speeds. To reduce the frog rail turning force and maintain its alignment, the movable frog rail is generally quite long. Compared to fixed frogs, movable point frogs are significantly longer and have a larger overall size, making on-site modifications inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a movable wing rail frog structure to improve the aforementioned problems. To achieve this purpose, the technical solution adopted by this invention is as follows:

[0005] A movable wing track frog structure, comprising:

[0006] Heart track;

[0007] A fixed wing rail is disposed on one side of the center rail;

[0008] A movable wing rail is provided on the other side of the center rail;

[0009] A conversion device, which is connected to the movable wing rail, is used to traction the movable wing rail to rotate around the toe end of the frog.

[0010] Optionally, the movable wing rail frog structure further includes a first spacer, which is located at the frog toe end and disposed between the movable wing rail and the fixed wing rail.

[0011] Optionally, the first spacer is disposed at the joint between the movable wing rail and the front rail.

[0012] Optionally, the fixed wing rail is connected to the core rail by a second spacer and bolts.

[0013] Optionally, a first anti-jump mechanism is provided on the side of one end of the movable wing rail located at the toe end of the turnout.

[0014] Optionally, a second anti-jump mechanism is provided on the side of one end of the movable wing rail located at the frog heel end.

[0015] Optionally, the movable wing rail includes a first bend point located at the frog throat; the fixed wing rail includes a second bend point located at the frog throat; the first bend point is closer to the tip of the center rail than the second bend point.

[0016] Optionally, the connection point between the conversion device and the movable wing rail is located on one side of the tip of the center rail.

[0017] Optionally, the second anti-jump mechanism includes an iron clip and a roller disposed on the slide plate, the iron clip including a limiting groove, and the bottom of one side of the movable wing rail located in the limiting groove;

[0018] The roller is mounted on the iron clamp and located above the bottom of the movable wing rail.

[0019] Optionally, a 2-4mm anti-jump gap is provided between the bottom of the movable wing rail and the roller.

[0020] Beneficial effects:

[0021] This application adopts a design with a fixed frog rail and movable wing rails, which can maintain the existing frog dimensions, eliminate harmful spaces, achieve vibration and noise reduction, fill the gap in frog types, and meet the needs of turnout modification. When the movable wing rail is close to the frog rail, it can eliminate harmful spaces and reduce the impact vibration when the train passes at high speed; when the movable wing rail is pulled away from the frog rail by the switching equipment, it can form a wheel flange groove, which facilitates the low-speed passage of the train in another direction. Compared with the traditional movable frog rail scheme, the movable wing rail frog structure of this application has good adaptability, does not affect the existing station layout, facilitates engineering implementation, and solves the problems of many constraints and high costs in the implementation of movable frog rail modification, significantly saving engineering investment.

[0022] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of this invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the movable wing rail frog structure in an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the second anti-jump mechanism in the embodiments of this application.

[0026] Symbol explanation: 1. Piston rail; 2. Fixed wing rail; 3. Movable wing rail; 4. First spacer; 5. Conversion device; 6. First anti-jump mechanism; 7. Second anti-jump mechanism; 701. Iron clamp; 702. Roller; 8. Slide plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0028] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] To achieve vibration and noise reduction, many urban rail systems require upgrading fixed frogs to movable frogs. Compared to fixed frogs, movable frogs are significantly longer and larger in overall size, making on-site modifications inconvenient. For example, for a 60kg / m rail No. 9 turnout, the total length of a fixed frog turnout is 28.3m, while the total length of a movable frog turnout is 30.95m, an increase of 2.65m. For a 60kg / m rail No. 12 turnout, the total length of a fixed frog turnout is 37.8m, while the total length of a movable frog turnout is 43.2m, an increase of 5.4m. Therefore, it is necessary to study a movable wing rail frog structure, where the frog rail is fixed and the wing rail is movable, eliminating harmful space without increasing the frog size, achieving vibration and noise reduction in the turnout area, and facilitating engineering implementation.

[0030] To address the existing technical problems, this embodiment provides a movable wing rail frog structure, comprising:

[0031] Heart Track 1;

[0032] Fixed wing rail 2, which is disposed on one side of the center rail 1;

[0033] Movable wing rail 3, which is disposed on the other side of the center rail 1;

[0034] The conversion device 5 is connected to the movable wing rail 3 and is used to pull the movable wing rail 3 to rotate around the frog toe end.

[0035] In this application, the center rail 1 of the movable wing rail frog structure is fixed, while the wing rail is movable. When the movable wing rail 3 is close to the center rail 1, it can eliminate harmful space and reduce the impact vibration when the train passes at high speed. When the movable wing rail 3 leaves the center rail 1 under the traction of the conversion device 5, it can form a wheel flange groove, which facilitates the low-speed passage of the train in another direction.

[0036] As an optional implementation, the movable wing rail frog structure further includes a first spacer 4, which is located at the frog toe end and positioned between the movable wing rail 3 and the fixed wing rail 2. The first spacer 4 facilitates the contact of the movable wing rail 3 with the center rail 1; simultaneously, one end of the movable wing rail 3 is also in contact with the first spacer 4 at its toe end, maintaining the distance between the movable wing rail 3 and the fixed wing rail 2. More preferably, the first spacer 4 is located at the joint between the movable wing rail 3 and the front rail, i.e., the distance between the movable wing rail 3 and the fixed wing rail 2 at the toe end is controlled by the first spacer 4, and the shape of the first spacer 4 matches the included angle at the toe end.

[0037] As an optional implementation, the fixed wing rail 2 is fixed to the pad by a fastener system and connected to the core rail 1 by a second spacer and bolts, keeping it fixed and maintaining a constant distance between it and the core rail 1.

[0038] As an optional implementation, the movable wing rail 3 is provided with a first anti-jump mechanism 6 on the side of one end located at the frog toe. Specifically, one end of the movable wing rail 3 located at the frog toe is fixed to the pad by a fastener system, and the other end can be moved so that the movable wing rail 3 can rotate around its fixed point. The first anti-jump mechanism 6 is located near the fixed point of the movable wing rail 3 to prevent the movable wing rail 3 from jumping or crawling and to maintain the stability of the movable wing rail 3.

[0039] The movable wing rail 3 is provided with a second anti-jump mechanism 7 on the side of one end located at the frog heel. The other end of the movable wing rail 3 is located on one side of the center rail 1, and this end also needs to be stabilized by the second anti-jump mechanism 7; while the middle part of the movable wing rail 3 is connected to the conversion device 5, which can be used to achieve anti-jump.

[0040] As an optional implementation, the movable wing rail 3 includes a first bend point located at the frog throat; the fixed wing rail 2 includes a second bend point located at the frog throat; the first bend point is closer to the tip of the frog rail 1 than the second bend point. That is, the frog throat design in this application differs from the prior art. In existing frog throats, the bend points of the two wing rails are symmetrically designed; however, in this application, to allow the movable wing rail 3 to better align with the frog rail 1, the bend point of the movable wing rail 3 is moved towards the frog rail 1. With this design, the movable wing rail 3 can effectively eliminate harmful space when in contact with the frog, and can form a flange groove when moving away, facilitating train passage.

[0041] Optionally, the connection point between the conversion device 5 and the movable wing rail 3 is located on one side of the tip of the core rail 1, that is, the traction stroke of the conversion device 5 is aligned with the tip of the core rail 1, thereby ensuring that the movable wing rail 3 can be well connected to the core rail 1. If the conversion device 5 is located in other positions, the connection effect between the movable wing rail 3 and the core rail 1 may be poor, and the harmful space cannot be completely eliminated. Specifically, the conversion device 5 can be a sliding plate device.

[0042] As an optional implementation, the second anti-jump mechanism 7 includes an iron clip 701 and a roller 702 disposed on the slide plate 8. The iron clip 701 includes a limiting groove, and the bottom of one side of the movable wing rail 3 is located in the limiting groove. The roller 702 is disposed on the iron clip 701 and is located above the bottom of the movable wing rail 3.

[0043] Specifically, the bottom of the iron card 701 is embedded in the slide plate 8, and the part exposed on the slide plate 8 is in the shape of "L". A limiting groove is formed between the iron card 701 and the slide plate 8. The movable wing rail 3 can slide on the slide plate 8, and its bottom can move into the limiting groove. The roller 702 can rotate and guide the bottom of the rail, making it easy for the bottom of the rail to slide into the limiting groove.

[0044] Preferably, considering factors such as safety, component error and track deformation, a 2-4mm anti-jump gap is provided between the bottom of the movable wing rail 3 and the roller 702 to ensure driving safety.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A movable wing rail frog structure, characterized in that, include: Heart track (1); A fixed wing rail (2) is provided on one side of the center rail (1); Movable wing rail (3), which is located on the other side of the center rail (1); A conversion device (5) is connected to the movable wing rail (3) and is used to pull the movable wing rail (3) to rotate around the frog toe end.

2. The movable wing rail frog structure according to claim 1, characterized in that, The movable wing rail frog structure also includes a first spacer (4), which is located at the frog toe end and is disposed between the movable wing rail (3) and the fixed wing rail (2).

3. The movable wing rail frog structure according to claim 2, characterized in that, The first spacer (4) is located at the joint between the movable wing rail and the front rail.

4. The movable wing rail frog structure according to claim 1, characterized in that, The fixed wing rail (2) is connected to the core rail (1) by a second spacer and bolts.

5. The movable wing rail frog structure according to claim 1, characterized in that, The movable wing rail (3) is provided with a first anti-jump mechanism (6) on the side of one end of the turnout toe.

6. The movable wing rail frog structure according to claim 1, characterized in that, The movable wing rail (3) is provided with a second anti-jump mechanism (7) on the side of one end of the turnout.

7. The movable wing rail frog structure according to claim 1, characterized in that, The movable wing rail (3) includes a first bend point located at the frog throat; the fixed wing rail (2) includes a second bend point located at the frog throat; the first bend point is closer to the tip of the center rail (1) than the second bend point.

8. The movable wing rail frog structure according to claim 1, characterized in that, The connection point between the conversion device (5) and the movable wing rail (3) is located on one side of the tip of the center rail (1).

9. A movable wing rail frog structure according to claim 6, characterized in that, The second anti-jump mechanism (7) includes an iron clip (701) and a roller (702) disposed on the slide plate (8). The iron clip (701) includes a limiting groove, and the bottom of one side of the movable wing rail (3) is located in the limiting groove. The roller (702) is mounted on the iron clip (701) and located above the bottom of the movable wing rail (3).

10. A movable wing rail frog structure according to claim 9, characterized in that, The movable wing rail (3) has a 2-4mm anti-jump gap between the bottom of the rail and the roller (702).

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