Sleeper assembly
By designing a sleeper assembly that includes a gauge baffle and a 59R2 grooved rail, the problem of unbearable rail stress in small-radius curved tracks is solved, and the track stability and line adjustment amount are optimized.
Patent Information
- Application Number
- CN202421170650.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-27
AI Technical Summary
In the design of urban tracks and tram tracks, the radius of the track curve is small, and existing sleepers and elastic fasteners are difficult to effectively withstand the stress of the rails, resulting in the easy deformation of the line curve, and the line line shape adjustment amount is large when the entire line is subsequently launched. .
A sleeper assembly is designed, including sleepers and spring fasteners. The slope of the gauge baffle and the rail is 1:10. It is fastened with matching spiral spikes and nuts. There is no slope at the rail bottom. The width of the rail bottom is 180mm. The width of the rail groove is 355mm, the length of the sleeper is 2500mm, the length of the rail bearing groove is increased, and the 59R2 grooved rail is used.
This device can effectively withstand the large stress of small-radius curved tracks, avoid line curve deformation, and reduce the amount of line alignment adjustment during subsequent ballast loading.
Smart Images
Figure CN222375098U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of track laying, and in particular relates to a sleeper assembly. Background Art
[0002] When designing urban rail and tram tracks, site constraints often lead to smaller track curve radii. According to the "Metro Design Specifications," a track curve radius less than 350 meters is considered a small-radius curve. Because the rails are less susceptible to bending at the joints, small-radius curves place significant stress on the sleepers. Currently, standard 60kg / m rails have a 150mm bottom width and a 1:40 bottom slope on the sleepers. Using existing sleepers and spring-clip fasteners to install rails can easily cause line curve deformation, requiring significant line shape adjustments during subsequent ballasting and track leveling. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a sleeper assembly.
[0004] The technical solution adopted by the utility model is a sleeper assembly, including a sleeper and a spring bar fastener, the spring bar fastener includes a spring bar and a gauge baffle arranged above the sleeper, the rear end of the gauge baffle abuts against the baffle seat, the front end is kept in close contact with the rail bottom, the baffle seat is close to the sleeper shoulder, the spring bar is installed on the gauge baffle and is fastened with matching spiral spikes and nuts, the sleeper has a length of 2500mm, a rail groove width of 355mm, a rail bottom width of 180mm, and no rail bottom slope is provided, and the buckling position of the spring bar gauge baffle and the rail slope are 1:10.
[0005] Preferably, the front end lower chin of the middle part of the elastic bar contacts the gauge baffle, and the nut torque is maintained at 100-140 N·m.
[0006] Compared with the existing technology, the beneficial effect of the present invention is that the present device improves the sleepers and spring clip fasteners in combination with the terrain, increases the length of the rail groove, adopts 59R2 groove rails with a rail bottom width of 180mm and no rail bottom slope. After the rails are placed stably on the pads above the rail groove, they are installed and fastened with corresponding spring clip fasteners. The gauge baffle buckling position and the rail slope are 1:10. For the installation of small radius curved tracks, it can withstand its greater stress, avoid deformation of the line curve, and avoid the problem of large line shape adjustments during subsequent ballasting and track leveling. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 This is a cross-sectional structural diagram of the sleeper;
[0008] Figure 2 This is a schematic diagram of the installation of spring clip fasteners. DETAILED DESCRIPTION
[0009] The present invention will be further explained below with reference to the accompanying drawings to facilitate better understanding by those skilled in the art.
[0010] Example 1
[0011] The technical solution adopted by the present invention is a sleeper assembly, including a sleeper 1 and a spring bar fastener, the spring bar fastener includes a spring bar 2 and a gauge baffle 3 arranged above the sleeper 1, the rear end of the gauge baffle 3 abuts on the baffle seat 4, and the front end remains in close contact with the rail bottom, the baffle seat 4 is close to the shoulder of the sleeper 1, the spring bar 2 is installed on the gauge baffle 3 and is connected and fastened with matching spiral spikes 5 and nuts 6.
[0012] In this embodiment, the tram line adopts 59R2 grooved rail, the sleeper 1 is 2500mm long, the rail groove 101 is 355mm wide, the rail bottom width is 180mm, and there is no rail bottom slope. The configuration of the spring clip accessories refers to the 60 rail configuration, but the buckling position of the gauge baffle 3 and the rail slope are 1:10.
[0013] Furthermore, the front end lower chin of the middle portion of the spring bar 2 contacts the gauge baffle 3, and the torque of the nut 6 is maintained at 100-140 N·m.
[0014] The above-described embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications and improvements made by those skilled in the art to the technical solution of the present invention without departing from the spirit and principles of the present invention shall fall within the scope of protection defined by the claims of the present invention.
Claims
1. A sleeper assembly, comprising a sleeper (1) and a spring clip fastener, the spring clip fastener comprising a spring clip (2) and a gauge baffle (3) arranged above the sleeper (1), the rear end of the gauge baffle (3) abutting against a baffle seat (4), the front end being kept in close contact with the rail bottom, the baffle seat (4) being in close contact with the shoulder of the sleeper (1), the spring clip (2) being installed on the gauge baffle (3) and being connected and fastened by matching spiral spikes (5) and nuts (6), characterized in that: The sleeper (1) is 2500 mm long, the rail groove (101) is 355 mm wide, the rail bottom width is 180 mm, and no rail bottom slope is provided. The slope between the buckling position of the gauge baffle (3) and the rail is 1:
10.
2. A sleeper assembly according to claim 1, characterized in that: The front end lower chin of the middle part of the spring bar (2) contacts the track gauge baffle (3), and the torque of the nut (6) is maintained at 100-140 N·m.