High-iron cross rail

Abstract

The utility model relates to high -speed rail cross rail, including left rail, left rail includes integral forming vertical arm one and horizontal arm one, vertical arm one is equipped with arc guiding groove no.

Description

Technical Field

[0001] This utility model relates to the field of high-speed rail track connection and guidance technology, and in particular to high-speed rail cross guide rail. Background Technology

[0002] In high-speed rail track systems, the cross rail is a key component at the intersection, and its performance directly affects the operational stability, safety, and service life of the high-speed rail.

[0003] Existing high-speed rail cross rails have some shortcomings: for example, unreasonable guide structure design can cause high-speed trains to jam and increase friction when crossing and turning, which not only increases energy consumption but also accelerates the wear of the guide rails. Furthermore, the connection structure has poor stability and is prone to loosening and displacement under the longitudinal and lateral loads generated by the high-speed operation of the high-speed train, affecting the overall accuracy of the track. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a high-speed rail cross guide rail, the specific technical solution of which is as follows: A high-speed rail cross guide rail includes a left guide rail, which comprises an integrally formed vertical arm and a horizontal arm. The vertical arm has an arc-shaped guide groove along its longitudinal end. The horizontal arm has a spacer groove. Both ends of the horizontal arm have mounting holes. Threaded holes are located on both sides of the spacer groove. A right guide rail includes an integrally formed vertical arm and a horizontal arm. The vertical arm has an arc-shaped guide groove along its longitudinal end. The horizontal arm has a spacer groove. Both ends of the horizontal arm have mounting holes. Threaded holes are located on both sides of the spacer groove. The horizontal arm and the horizontal arm can be interlocked through the spacer groove and the spacer groove, and are fixedly connected by the threaded holes and fasteners.

[0005] Preferably, the first vertical arm has multiple mounting holes 1, and the second vertical arm has multiple mounting holes 3. The mounting holes 1 and 3 are through holes and are evenly distributed along the length of the first and second vertical arms.

[0006] Preferably, the arc-shaped guide groove one and the arc-shaped guide groove two are matched in curvature, both are smooth curved surface structures, and the surface roughness is ≤Ra0.8μm.

[0007] Preferably, the width of the first interval groove matches the thickness of the second transverse arm, and the width of the second interval groove matches the thickness of the first transverse arm, with a fit tolerance of ±0.05mm. Both the first and second interval grooves have rounded corners at their edges.

[0008] Preferably, the number of threaded holes one and threaded holes two are the same and their positions correspond one-to-one. They are all internal threaded holes with specifications of M16-M20.

[0009] Preferably, both the left and right guide rails are made of high-strength alloy steel and have undergone tempering heat treatment to achieve a hardness of HRC30-35.

[0010] The beneficial effects of this utility model are: 1. The design of arc-shaped guide groove one and arc-shaped guide groove two ensures a smooth transition when the high-speed train crosses and turns, reduces impact and vibration, and effectively reduces frictional resistance compared with traditional guide rails.

[0011] 2. The cross-connection of the left and right guide rails adopts a combination of slotted fitting and bolt fastening, combined with high-strength materials and reasonable heat treatment process, so that the guide rails can withstand large longitudinal loads and large lateral loads, and are not prone to loosening or deformation during long-term use.

[0012] 3. Convenient and efficient installation: The multiple mounting holes facilitate the positioning and fixing of the guide rail. No complicated adjustment tools are required during installation, which can improve installation efficiency and greatly shorten the construction cycle.

[0013] 4. It is not only applicable to standard gauge high-speed rail lines, but can also be applied to rail transit systems with different gauges by appropriately adjusting the size parameters, thus having strong versatility. Attached Figure Description

[0014] Figure 1 This is a top view of the overall structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the entire utility model; Figure 3 This is a front view of the overall structure of this utility model.

[0015] Reference numerals: 1. Left guide rail; 11. Vertical arm one; 111. Arc-shaped guide groove one; 10. Mounting hole one; 12. Horizontal arm one; 120. Spacing groove one; 121. Mounting hole two; 122. Threaded hole one; 2. Right guide rail; 21. Vertical arm two; 211. Arc-shaped guide groove two; 20. Mounting hole three; 22. Horizontal arm two; 220. Spacing groove two; 221. Mounting hole four; 222. Threaded hole two. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Example

[0017] Please refer to Figures 1-3 We provide high-speed rail cross rails; the specific technical solution is as follows: The high-speed rail cross guide rail includes a left guide rail 1 and a right guide rail 2, wherein the left guide rail 1 and the right guide rail 2 are perpendicular to each other and are distributed in a cross shape.

[0018] The left guide rail 1 is composed of an integrally formed vertical arm 11 and a horizontal arm 12. The vertical arm 11 has an arc-shaped guide groove 111 along its longitudinal end in the axial direction. The curvature of this arc-shaped guide groove 111 is precisely calculated to match the movement trajectory of the high-speed rail wheelset or guide components. The surface of the groove is finely polished, with a roughness controlled below Ra0.8μm to reduce frictional resistance during the guiding process. The vertical arm 11 also has multiple evenly distributed mounting holes 10. These mounting holes 10 are through holes, with the diameter set according to the specifications of the mounting bolts, used to fix the vertical arm 11 to the track foundation.

[0019] A spacer groove 120 is provided in the middle of the transverse arm 12, extending through the width of the transverse arm 12. Its width matches the thickness of the transverse arm 22 of the right guide rail 2, with a tolerance controlled within ±0.05mm to ensure a tight fit. Mounting holes 121 are symmetrically provided at both ends of the transverse arm 12. The structure of mounting holes 121 is similar to that of mounting holes 10, used for auxiliary fixing of the transverse arm 12. Threaded holes 122 are symmetrically distributed on both sides of the spacer groove 120 on the transverse arm 12. The number of threaded holes 122 is determined according to actual force requirements, generally 4-6, and their inner diameter and pitch are compatible with the matching fastening bolts.

[0020] The right guide rail 2 is composed of an integrally formed vertical arm 21 and a horizontal arm 22. The vertical arm 21 has an arc-shaped guide groove 211 along its longitudinal end in the axial direction. The arc-shaped guide groove 211 has the same curvature as the arc-shaped guide groove 111, and the two form a continuous guide path at their intersection. Multiple mounting holes 20 are evenly distributed on the vertical arm 21. The specifications and distribution of the mounting holes 20 are consistent with those of the mounting holes 10, and they are used to fix the vertical arm 21 to the track foundation.

[0021] A second interval groove 220 is provided in the middle of the second transverse arm 22, extending through the width of the second transverse arm 22. The width of the second interval groove 220 matches the thickness of the first transverse arm 12 of the left guide rail 1, with the tolerance also controlled within ±0.05mm. Mounting holes 221 are provided at both ends of the second transverse arm 22, corresponding to mounting holes 121. On the second transverse arm 22, located on both sides of the second interval groove 220, there are threaded holes 222, the same number and position as the threaded holes 122, with the same specifications as the threaded holes 122.

[0022] Specifically, the left guide rail 1 and the right guide rail 2 are interlocked by the spacer slot 120 of the transverse arm 12 and the spacer slot 220 of the transverse arm 22, forming a stable cross structure. After the interlocking is completed, the threaded hole 122 and the threaded hole 222 are precisely aligned, and a high-strength bolt with a strength grade of not less than 8.8 is passed through and tightened to achieve a rigid connection between the left guide rail 1 and the right guide rail 2.

[0023] In an optional embodiment, to enhance the overall strength and wear resistance of the guide rails, both the left guide rail 1 and the right guide rail 2 are made of high-strength alloy steel such as 40CrNiMoA, and after quenching and tempering heat treatment, the hardness reaches HRC30-35 and the yield strength is not less than 800MPa.

[0024] The edges of both the first slot 120 and the second slot 220 are rounded with a radius of 2-3 mm to avoid stress concentration.

[0025] Working principle When the high-speed train reaches the cross-shaped guide rails, the train's wheelsets or guiding components enter the arc-shaped guide groove 111 or the arc-shaped guide groove 211. Under the constraint and guidance of the guide grooves, the train smoothly turns or passes through the intersection area along the predetermined trajectory. The left guide rail 1 and the right guide rail 2 are rigidly connected to form an integral load-bearing structure, which evenly distributes the load transmitted by the train to the track foundation, ensuring the stability and safety of the track.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-speed rail cross guide rail, characterized in that, include: The left guide rail (1) includes an integrally formed vertical arm (11) and a horizontal arm (12). The vertical arm (11) has an arc-shaped guide groove (111) along its longitudinal arm end. The horizontal arm (12) has a spacer groove (120). The two ends of the horizontal arm (12) have mounting holes (121). The horizontal arm (12) has threaded holes (122) on both sides of the spacer groove (120). The right guide rail (2) includes an integrally formed vertical arm two (21) and a horizontal arm two (22). The vertical arm two (21) has an arc-shaped guide groove two (211) along its longitudinal arm end. The horizontal arm two (22) has a spacer groove two (220). The two ends of the horizontal arm two (22) have mounting holes four (221). The horizontal arm two (22) has threaded holes two (222) on both sides of the spacer groove two (220). The horizontal arm one (12) and the horizontal arm two (22) can be interlocked by the spacer groove one (120) and the spacer groove two (220), and are fixedly connected by the threaded hole one (122), the threaded hole two (222) and the fastener.

2. The high-speed rail cross guide rail according to claim 1, characterized in that: The vertical arm 1 (11) is provided with a plurality of mounting holes 1 (10), and the vertical arm 2 (21) is provided with a plurality of mounting holes 3 (20). The mounting holes 1 (10) and 3 (20) are both through holes and are evenly distributed along the length of the vertical arm 1 (11) and the vertical arm 2 (21).

3. The high-speed rail cross guide rail according to claim 2, characterized in that: The arc-shaped guide groove one (111) and the arc-shaped guide groove two (211) are matched in arc and are both smooth curved surface structures with a surface roughness ≤ Ra0.8μm.

4. The high-speed rail cross guide rail according to claim 3, characterized in that: The width of the first interval groove (120) matches the thickness of the second transverse arm (22), and the width of the second interval groove (220) matches the thickness of the first transverse arm (12), with a fit tolerance of ±0.05mm. Both the first interval groove (120) and the second interval groove (220) have rounded corners at their edges.

5. The high-speed rail cross guide rail according to claim 1, characterized in that: The number of threaded holes one (122) and threaded holes two (222) are the same and their positions correspond one-to-one. They are both internal threaded holes with specifications of M16-M20.

6. The high-speed rail cross guide rail according to claim 5, characterized in that: The left guide rail (1) and the right guide rail (2) are both made of high-strength alloy steel with a hardness of HRC30-35.

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