Novel combined frog

Abstract

The utility model discloses a novel combined frog which comprises a pair of wing rails and a point rail assembly, and the pair of wing rails are distributed on the two sides of the point rail assembly. The point rail assembly comprises a point rail in the middle, and fork heel rails are detachably installed on the two sides of the point rail through high-strength bolts. The point rail has the advantages that the structure is reasonable, the utilization rate of point rail blanks can be effectively improved, the production cost is reduced, and the use requirements can be better met.

Description

Technical Field

[0001] This utility model relates to the field of turnout equipment technology, specifically a novel combined turnout. Background Technology

[0002] The traditional design of combined frog inserts and frog rail blanks is usually based on experience and engineering standards, and their shape is mainly influenced by railway industry standards and requirements. These designs can meet the needs of railway transportation to a certain extent, but they may have some limitations, such as susceptibility to damage, large processing volume, and serious material waste.

[0003] For example, the utility model patent with authorization announcement number CN206219898U discloses a wing rail head pressing and heightening type combined frog. This frog increases the height of the wing rail top by squeezing a part of the standard rail head, eliminating the need for a bending process, reducing dimensional errors caused by the bending process, and reducing the damage to the frog wing rail caused by the bending process. This reduces the processing difficulty and improves the quality of the frog wing rail.

[0004] However, the utilization rate of the combined fork inserts and the rail blanks is low, and the processing cost is high (e.g., Figure 4 As shown, the blank areas represent the parts that need to be ground, and the shaded areas represent the shape of the mandrel. Utility Model Content

[0005] The purpose of this invention is to provide a novel combined turnout to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A novel combined turnout includes: a pair of wing rails and a center rail assembly, wherein the pair of wing rails are distributed on both sides of the center rail assembly; the center rail assembly includes a center rail in the middle position, and fork follow rails are detachably installed on both sides of the center rail by high-strength bolts; the cross-section of the center rail is "I" shaped.

[0008] As a preferred embodiment, a spacer is also provided between the center rail and the fork rails on both sides, with the two ends of the spacer respectively abutting the corresponding side of the center rail and the fork rail.

[0009] As a preferred embodiment, each of the forks and rails is further provided with a rail washer on the outer side.

[0010] As a preferred embodiment, the high-strength bolt passes sequentially through the rail washer, fork rail, spacer, core rail, spacer, fork rail, and rail washer, and a nut is screwed onto the end of the high-strength bolt.

[0011] As a preferred embodiment, an elastic pin sleeve is also fitted at the middle position of the high-strength bolt.

[0012] As a preferred embodiment, the opposite sides of the pair of wing rails are also fixed with inserts by bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by setting a mandrel with an "I"-shaped cross-section, the billet is relatively... Figure 4 The central guide rail effectively reduces grinding volume, minimizes blank waste, and improves blank utilization, thereby shortening processing time, reducing production costs, and better meeting user needs. This utility model has a reasonable structure, effectively improving the utilization rate of the central guide rail blank, reducing production costs, and thus better meeting user needs. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall three-dimensional structure of a novel combined turnout;

[0015] Figure 2 A three-dimensional cross-sectional view of the contact area between the center rail and the fork rail of a novel combined turnout;

[0016] Figure 3 A schematic cross-sectional view of the contact position between the center rail and the fork follower rail of a novel combined turnout;

[0017] Figure 4 A schematic diagram showing the grinding required for machining the existing mandrel;

[0018] Figure 5 This is a schematic diagram of the part that needs to be ground during the machining of the mandrel in this application.

[0019] In the diagram: 1. Piston rail; 2. Insert block; 3. Fork follow rail; 4. Wing rail; 5. Spacer; 6. Elastic pin sleeve; 7. High-strength bolt; 8. Rail washer. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Please refer to Figures 1 to 3 A novel combined frog includes: a pair of wing rails 4 and a center rail assembly, wherein the pair of wing rails 4 are distributed on both sides of the center rail assembly; the center rail assembly includes a center rail 1 in the middle position, and fork follow rails 3 are detachably installed on both sides of the center rail 1 by high-strength bolts 7; the center rail 1 has an "I" shaped cross-section (e.g., ...). Figure 5(The shaded area is shown; the blank area is the part that needs to be ground.) By setting a mandrel with an "I"-shaped cross-section, the blank is relatively... Figure 4 The center rail 1 in the middle can effectively reduce the grinding volume, reduce the waste of blanks, improve the utilization rate of blanks, thereby shorten the processing time, reduce the production cost, and better meet the needs of use.

[0022] As a further solution, a spacer 5 is provided between the center rail 1 and the two side fork rails 3. The two ends of the spacer 5 are respectively attached to the corresponding side of the center rail 1 and the fork rail 3. A rail washer 8 is also provided on the outer side of each fork rail 3. A high-strength bolt 7 sequentially passes through the rail washer 8, the fork rail 3, the spacer 5, the center rail 1, the spacer 5, the fork rail 3, and the rail washer 8. A nut is screwed onto the end of the high-strength bolt 7, and an elastic pin sleeve 6 is fitted in the middle of the high-strength bolt 7. The bolt preload compresses the elastic pin sleeve 6, increasing friction and improving the fixing effect. When subjected to wheel impact or thermal expansion and contraction due to temperature changes, the elastic pin sleeve 6 can absorb the energy from external vibrations or impacts, reducing the impact on the center rail 1, extending its service life, and reducing maintenance and repair costs.

[0023] The working principle of this utility model is as follows: During specific installation, the core rail 1, a pair of fork follower rails 3, a pair of spacer irons 5, and a pair of rail washers 8 are assembled together. Then, elastic pin sleeves 6 are fitted onto the high-strength bolts 7. The high-strength bolts 7 are then passed through the rail washers 8, fork follower rails 3, spacer irons 5, core rail 1, spacer irons 5, fork follower rails 3, and rail washers 8 in sequence. Finally, nuts are screwed onto the ends of the high-strength bolts 7 to complete the assembly of the core rail assembly. The operation is simple, disassembly and assembly are convenient, and parts can be easily replaced, which can better meet the needs of use.

[0024] As a further embodiment, insert blocks 2 are also bolted to the opposite sides of the pair of wing rails 4. In this embodiment, the insert blocks 2 are installed near the center rail 1 and are bolted on for easy disassembly and replacement.

[0025] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

Claims

1. A new type of combined frog, characterized in that, The utility model relates to a kind of steel rail structure, including: A pair of wing rails (4), heart rail assembly, a pair of the wing rails (4) are distributed on the two sides of heart rail assembly; The heart rail assembly includes the heart rail (1) in intermediate position, and the fork tail rail (3) is detachably installed on the two sides of the heart rail (1) by high-strength bolt (7); The heart rail (1) section is "H" shape.

2. A novel combination frog as claimed in claim 1, wherein: Spacing iron (5) is further provided between the heart rail (1) and the fork tail rail (3) on the two sides, and the two ends of the spacing iron (5) are respectively attached to the corresponding side of the heart rail (1) and the fork tail rail (3).

3. A novel combination frog as claimed in claim 2, wherein: Each of the fork tail rail (3) outside is further provided with a rail washer (8).

4. A novel combination frog as claimed in claim 3, wherein: The high-strength bolt (7) penetrates the rail washer (8), the fork tail rail (3), the spacing iron (5), the heart rail (1), the spacing iron (5), the fork tail rail (3) and the rail washer (8) in sequence, and the end of the high-strength bolt (7) is screwed with a nut.

5. A novel combination frog as claimed in claim 4, wherein: The high-strength bolt (7) is further sleeved with an elastic pin sleeve (6) in the middle position.

6. A novel combination frog as claimed in claim 5, wherein: The opposite sides of a pair of the wing rails (4) are further fixed with inlay blocks (2) by bolts.

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