A traction beam cover with equal strength suitable for two track gauges

Abstract

The present invention discloses a traction beam cover plate structure that adapts to two track gauges. The traction beam cover plate is a folded and pressed symmetrical span structure, including a traction beam main plate located in the middle of the longitudinal direction and traction beam wing plates integrated on both sides of the traction beam main plate; the two wing plate surfaces of the main plate gradually widen and transitionally connect with the wing plates of equal width, the thickness of the main plate is greater than the thickness of the wing plate, and the thickness of the main plate on both wings gradually thins to both sides, and transitions to the same thickness as the wing plates; the middle part of the main plate is hollowed out to reduce the dead weight; side bearing assembly holes are arranged on the main plate and the wing plates, which are respectively used for narrow track or standard track change structures. The traction beam cover plate of the present invention follows the equal strength design, adopts a span structure, is hollowed out in the middle, and gradually widens in width to ensure the bearing strength; the thickness of the main plate is greater than the thickness of the wing plate, and the thickness of the main plate gradually changes, and transitions to the same thickness as the wing plate to reduce the dead weight; side bearing assembly holes are arranged on the main plate and the wing plates, which meet the needs of narrow track and standard track at the same time, and are convenient for track change assembly.

Description

Technical Field

[0001] The invention belongs to the technical field of railway vehicle equipment component design, and relates to railway vehicle traction beam design technology, in particular to an equal-strength traction beam cover plate adapting to two track gauges. Background Art

[0002] There are two main types of existing traction beam bearing structures for railway freight cars in my country. One is a double-layer plate structure, which overlaps the traction beam and the lower cover plate of the bolster. Due to the operation method, rust is easily trapped between the double-layer plates, resulting in welding defects and reducing the bearing strength; the other form is that the traction beam is connected to the lower cover plate of the bolster, and the upper center plate is directly riveted to the traction beam. This structure easily causes the traction beam to be too heavy and increases the difficulty of manufacturing. Both existing bearing structure forms can only meet the use of one track gauge. When changing tracks, they need to be replaced again, and the interchangeability is poor. Summary of the invention

[0003] The invention discloses a traction beam cover plate structure adapted to two track gauges. The invention aims to provide a traction beam cover plate of equal strength adapted to two track gauges, which does not need to be replaced when changing tracks, has good interchangeability and is adapted to two track gauges.

[0004] The present invention is achieved through the following technical solutions:

[0005] The traction beam cover plate with equal strength suitable for two track gauges is a cover plate used for welding arrangement on the upper surface of the traction beam of railway vehicles. It is characterized in that the traction beam cover plate is a folded and pressed symmetrical wingspan structure, including a traction beam main board located in the middle of the longitudinal direction and traction beam wing plates integrated on both sides of the traction beam main board.

[0006] The plate surfaces of the two wings of the traction beam main board gradually widen and transition to the traction beam wing plates of equal width. The thickness of the traction beam main board is greater than that of the traction beam wing plates. The thickness of the two wings of the traction beam main board gradually becomes thinner toward both sides and transition to the traction beam wing plates of equal thickness.

[0007] The middle part of the main board of the traction beam is hollowed out to reduce its own weight.

[0008] The traction beam main plate and the traction beam wing plate are both provided with side bearing assembly holes, which are respectively used for narrow rail or standard rail track changing structures.

[0009] In the design of railway freight cars, the center plate and side bearings are used to jointly bear the vertical load, which accounts for approximately 85% and 15% of the load respectively. The center plate and the center plate seat are formed above the main plate of the traction beam, and the side bearings are installed below the wing plate of the traction beam.

[0010] In the design of the traction beam main plate and wing plate, the traction beam main plate bears the vertical load and the longitudinal impact load of the train, while the traction beam wing plate only bears the vertical load. The design thickness of the traction beam main plate of the present invention is greater than the thickness of the traction beam wing plate, which not only reduces the weight of the entire cover plate, but also does not lose the strength of the cover plate, avoiding the design strength redundancy of the traction beam wing plate; and realizing the concept of equal strength of the design thickness of each part.

[0011] The advantages of the present invention over the prior art are: the traction beam cover plate follows the equal strength design, adopts a wing-span structure, is hollowed out in the middle, and gradually widens in width to ensure the bearing strength. The thickness of the traction beam main plate is greater than that of the traction beam wing plate, and the thickness of the main plate gradually changes, transitioning to the same thickness as the wing plate, thereby reducing the deadweight. Side bearing assembly holes are provided on both the traction beam main plate and the traction beam wing plate, which meet the needs of narrow rails and standard rails at the same time, and are convenient for rail replacement assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic plan view of the traction beam cover plate of the present invention;

[0013] Figure 2 yes Figure 1 AA cross section diagram

[0014] Figure 3 It is a schematic diagram of the main board of the traction beam cover plate of the present invention;

[0015] Figure 4 It is a schematic diagram of the wing plate of the traction beam cap plate of the present invention;

[0016] Figure 5 yes Figure 2 The enlarged schematic diagram of the middle B part;

[0017] Figure 6 It is a schematic diagram of the traction beam and pillow beam structure.

[0018] In the figure, 1 is the main board, 2 is the wing board, 3 is the middle hollow, 4 is the first side bearing hole, 5 is the second side bearing hole, 6 is the traction beam, and 7 is the pillow beam. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with specific implementation methods. The specific implementation methods are further descriptions of the principles of the present invention and do not limit the present invention in any way. Technologies that are the same or similar to the present invention do not exceed the scope of protection of the present invention.

[0020] Combined with the attached pictures.

[0021] As shown in the figure, the traction beam cover plate includes a traction beam main plate 1 and a traction beam wing plate 2. The traction beam wing plates 2 are placed on both sides of the traction beam main plate 1 and are fixedly connected to the traction beam main plate 1 to form an integral structure, forming a wing span structure.

[0022] The traction beam main plate 1 adopts an equal strength design structure, with a central hollow 3, gradually widened on both sides, and gradually thinned in thickness, so that the structural strength of each part of the cover plate is basically equal, reducing the deadweight. The first side bearing hole is set on the traction beam main plate 1, which is suitable for narrow track gauge.

[0023] Railway freight cars generally use a center plate and side bearings to jointly bear the vertical load, accounting for 85% and 15% respectively. The center plate and the center plate seat are formed above the traction beam main plate 1, and the side bearings are installed below the traction beam wing plate 2.

[0024] The traction beam main plate 1 bears the vertical load and the longitudinal impact load of the train, while the traction beam wing plate 2 only bears the vertical load. Therefore, the design thickness of the traction beam main plate 1 should be higher than that of the traction beam wing plate 2. If the design is uniformly based on the thickness of the traction beam main plate 1, the traction beam wing plate 2 has design strength redundancy; if the thickness of each part is designed separately according to different forces, it is the equal strength design concept.

[0025] The traction beam flange 2 is provided with a second side bearing hole, which is suitable for standard track gauge. The thickness of the connection between the traction beam main plate 1 and the traction beam flange 2 is smoothly transitioned.

Claims

1. A traction beam cover plate of equal strength adapted to two track gauges, the traction beam cover plate is a cover plate for welding arrangement on the upper surface of the traction beam of a railway vehicle, characterized in that: The traction beam cover plate is a folded and pressed symmetrical wing span structure, including a traction beam main plate located in the middle of the longitudinal direction and traction beam wing plates integrated on both sides of the traction beam main plate; the plate surface on both wings of the traction beam main plate gradually widens and transitions to the traction beam wing plates with the same width, the thickness of the traction beam main plate is greater than the thickness of the traction beam wing plates, and the thickness of the two wings of the traction beam main plate gradually becomes thinner toward both sides and transitions to the same thickness as the traction beam wing plates; side bearing assembly holes are arranged on the traction beam main plate and the traction beam wing plates, which are respectively used for narrow rail or standard rail track changing structures.

2. The equal-strength traction beam cover plate adapted to two track gauges according to claim 1 is characterized in that: The middle part of the main board of the traction beam is provided with a middle hollow part for reducing its own weight.

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