Rail car bottom plate bracket

Abstract

The utility model provides a rail car bottom plate bracket which comprises a chassis assembly, a buffering assembly is arranged on the chassis assembly, and a bracket assembly is arranged on the upper side of the chassis assembly through the buffering assembly. Compared with the prior art, the chassis assembly and the bracket assembly which are made of aluminum alloy materials are arranged, the self weight of the vehicle can be effectively reduced, the carrying efficiency and the energy-saving performance are improved, meanwhile, wheel track abrasion is reduced, the rigidity and the bending resistance and torsion resistance of the bracket are remarkably improved through the cross-shaped reinforcing rib structure, and the service life of the vehicle is prolonged. The car body structure is not prone to deformation when bearing dynamic loads, the overall stability and safety are enhanced, impact force generated in the cargo loading and unloading process can be effectively absorbed and dispersed in the cargo loading and unloading process by arranging the buffering assembly, vibration damage to the car body structure and cargoes is reduced, and the transportation safety is improved; and meanwhile, hard collision between the goods and the bracket and between the goods and the external bearing surface is reduced, and displacement or damage of the goods due to sudden stress is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of rail vehicles, and specifically relates to a rail vehicle floor bracket. Background Technology

[0002] The railcar floor bracket is a key structural component at the bottom of a rail vehicle used to support and fix the car body. Its main functions are to bear the weight of the car body, transfer loads, and ensure the stable connection of the car body. This bracket is usually made of metal and fixed to the bottom of the car body by bolts or welding. It has sufficient strength, rigidity, and durability. Non-lightweight railcar floor brackets mainly refer to brackets that use traditional heavy metal structures without material or design optimization. Their main disadvantage is excessive weight. Excessive weight will significantly increase the overall vehicle mass, leading to increased traction energy consumption. Moreover, the increased weight will directly aggravate the dynamic interaction between the wheels and rails, increasing the contact stress between the wheelset and the rail. This not only increases the power demand of the traction motor but also accelerates wheel and rail wear. Therefore, we hope to design a railcar floor bracket to solve this problem. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a railcar floor bracket to solve the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution: a railcar base plate bracket, comprising: a chassis assembly, a buffer assembly provided on the chassis assembly, and a bracket assembly provided on the upper side of the chassis assembly through the buffer assembly;

[0005] The chassis assembly includes two vertical base frames, and a horizontal base frame is fixedly connected to the left and right ends of the inner sides of the two vertical base frames.

[0006] The bracket assembly includes two vertical brackets and two horizontal brackets. The two horizontal brackets are fixedly connected to the inner side of the two vertical brackets. Fixing blocks are fixedly connected to the lower sides of the left and right ends of the vertical brackets. By setting the chassis assembly and bracket assembly made of aluminum alloy, the vehicle's weight can be effectively reduced, and the carrying efficiency and energy saving can be improved. Secondly, the cross-shaped reinforcing rib structure significantly improves the rigidity and bending and torsional resistance of the bracket, making it less prone to deformation when subjected to dynamic loads, thus enhancing the overall stability and safety.

[0007] In a preferred embodiment, the interior of the vertical base frame, the horizontal base frame, the vertical bracket, and the horizontal bracket are all fixedly connected with cross-shaped reinforcing ribs to improve their bending and torsional resistance.

[0008] In a preferred embodiment, the vertical base frame, the horizontal base frame, the vertical bracket, and the horizontal bracket are all made of an aluminum alloy with a lightweight structure.

[0009] In a preferred embodiment, the buffer assembly includes two buffer blocks, each made of spring steel with high elasticity and yield strength. Both buffer blocks are fixedly connected to the upper side of the vertical base frame via mounting blocks, which are then fixedly connected to the vertical base frame with screws. By setting up the buffer assembly, the impact force generated during loading and unloading can be effectively absorbed and dispersed, reducing vibration damage to the vehicle structure and cargo, improving transportation safety, and reducing hard collisions between cargo and the pallet and external bearing surface, thus preventing cargo from shifting or being damaged due to bumps or sudden forces.

[0010] In a preferred embodiment, both the mounting block and the buffer block have movably inserted limit screws inside, and the lower end of the limit screws is screwed into the interior of the vertical base frame via threads.

[0011] In a preferred embodiment, the buffer assembly further includes a connecting block, the two ends of which are respectively hinged to one end of the two buffer blocks.

[0012] In a preferred embodiment, the buffer assembly further includes a damping shock absorber, the lower end of which is hinged to the inner side of the vertical base frame, and the upper end of which is hinged to the inner side of the vertical bracket.

[0013] In a preferred embodiment, the number of buffer components is two sets, which are symmetrically distributed front and back.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] 1. By setting up chassis and bracket components made of aluminum alloy, the vehicle's weight can be effectively reduced, improving carrying efficiency and energy saving while reducing wheel and rail wear. Secondly, the cross-shaped reinforcing rib structure significantly improves the rigidity and bending and torsional resistance of the bracket, making it less prone to deformation when subjected to dynamic loads, thus enhancing overall stability and safety.

[0016] 2. By setting up buffer components, the impact force generated during loading and unloading can be effectively absorbed and dispersed, reducing vibration damage to the vehicle structure and cargo, improving transportation safety, and reducing hard collisions between cargo and pallets and external bearing surfaces, preventing cargo from shifting or being damaged due to sudden force. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional view of the overall structure of a track vehicle base plate bracket according to the present invention.

[0019] Figure 2 This is an exploded view of a railcar floor bracket according to the present invention.

[0020] Figure 3 This is an exploded view of the chassis assembly of a railcar floor bracket according to this utility model.

[0021] Figure 4 This is an exploded view of the bracket assembly of a railcar floor bracket according to the present invention.

[0022] In the diagram, 1-chassis assembly, 2-buffer assembly, 3-bracket assembly;

[0023] 11-Vertical base frame, 12-Horizontal base frame, 13-Cross-shaped reinforcing rib;

[0024] 21-Buffer block, 22-Mounting block, 23-Fixing screw, 24-Limit screw, 25-Connecting block, 26-Damping shock absorber;

[0025] 31-Vertical bracket, 32-Fixing block, 33-Horizontal bracket. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0027] Please see Figures 1-4 As the first embodiment of this utility model:

[0028] A railcar base plate bracket includes: a chassis assembly 1, a buffer assembly 2 disposed on the chassis assembly 1, and a bracket assembly 3 disposed on the upper side of the chassis assembly 1 through the buffer assembly 2.

[0029] The chassis assembly 1 includes two vertical base frames 11, and a horizontal base frame 12 is fixedly connected to the left and right ends of the inner side of the two vertical base frames 11.

[0030] The bracket assembly 3 includes two vertical brackets 31 and two horizontal brackets 33. The two horizontal brackets 33 are fixedly connected to the inner side of the two vertical brackets 31. Fixing blocks 32 are fixedly connected to the lower side of the left and right ends of the vertical brackets 31. By setting the chassis assembly 1 and the bracket assembly 3 with aluminum alloy material, the vehicle weight can be effectively reduced, and the carrying efficiency and energy saving can be improved. Secondly, the cross-shaped reinforcing rib 13 structure significantly improves the rigidity and bending and torsional resistance of the bracket, making it less prone to deformation when subjected to dynamic loads, thus enhancing the overall stability and safety.

[0031] The vertical base frame 11 and the horizontal base frame 12, as well as the vertical bracket 31 and the horizontal bracket 33, are all internally fixedly connected with cross-shaped reinforcing ribs 13 to improve their bending and torsional resistance.

[0032] The vertical base frame 11, the horizontal base frame 12, the vertical bracket 31, and the horizontal bracket 33 are all made of aluminum alloy with a lightweight structure.

[0033] Specifically, by setting up vertical base frames 11 and horizontal base frames 12, as well as vertical brackets 31 and horizontal brackets 33 made of aluminum alloy, the density of aluminum alloy is about 2.7 g / cm³, which is significantly lower than the 7.8 g / cm³ of traditional steel. Under the same volume, the structural mass can be reduced by about 65%. At the same time, the internal cross-shaped reinforcing ribs 13 divide it into multiple closed small units. When subjected to bending moment, the cross ribs and the outer wall together form a composite force system, which transmits multi-directional loads and disperses stress concentration, thereby improving the overall bending stiffness. This allows the structure to still achieve high bending load-bearing efficiency under the premise of weight reduction.

[0034] Please see Figure 1 as well as Figure 2 As a second embodiment of this utility model:

[0035] The buffer assembly 2 includes two buffer blocks 21, which are made of spring steel with high elasticity and yield strength. Both buffer blocks 21 are fixedly connected to the upper side of the vertical base frame 11 by mounting blocks 22. The mounting blocks 22 are fixedly connected to the vertical base frame 11 by screws. By setting the buffer assembly 2, the impact force generated during loading and unloading can be effectively absorbed and dispersed, reducing vibration damage to the vehicle structure and cargo, improving transportation safety, and reducing hard collisions between cargo and the pallet and external bearing surface, preventing cargo from shifting or being damaged due to bumps or sudden forces.

[0036] Both the mounting block 22 and the buffer block 21 have a movable limit screw 24 inside, and the lower end of the limit screw 24 is screwed into the interior of the vertical base frame 11 by thread.

[0037] The buffer assembly 2 also includes a connecting block 25, the two ends of which are respectively hinged to one end of the two buffer blocks 21.

[0038] The buffer assembly 2 also includes a damping shock absorber 26, the lower end of which is hinged to the inside of the vertical base frame 11, and the upper end of which is hinged to the inside of the vertical bracket 31.

[0039] The number of buffer components 2 is two sets, which are symmetrically distributed front and back.

[0040] Based on the above embodiments, further, during loading, when the impact load of the cargo acts on the external bearing surface of the vehicle body, the external bearing surface transmits the impact force to the buffer block 21 and the damping shock absorber 26 through the vertical bracket 31 and the horizontal bracket 33. The buffer block 21, as the first buffer layer, plays a supporting and buffering role, and deforms when subjected to force. The damping shock absorber 26 converts kinetic energy into heat energy for dissipation, achieving a smooth descent and protecting the vehicle body structure, and preventing the cargo from shifting or being damaged due to sudden force.

[0041] 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, improvements, etc., 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 railcar floor bracket, comprising: A chassis assembly (1) is characterized in that a buffer assembly (2) is provided on the chassis assembly (1), and a bracket assembly (3) is provided on the upper side of the chassis assembly (1) through the buffer assembly (2). The chassis assembly (1) includes two vertical base frames (11), and a horizontal base frame (12) is fixedly connected to the left and right ends of the inner sides of the two vertical base frames (11). The bracket assembly (3) includes two vertical brackets (31) and two horizontal brackets (33). The two horizontal brackets (33) are fixedly connected to the inner side of the two vertical brackets (31). Fixing blocks (32) are fixedly connected to the lower side of the left and right ends of the vertical brackets (31).

2. The railcar floor bracket as described in claim 1, characterized in that: The vertical base frame (11) and the horizontal base frame (12), as well as the vertical bracket (31) and the horizontal bracket (33), are all fixedly connected with cross-shaped reinforcing ribs (13) to improve their bending and torsional resistance.

3. A railcar floor bracket as described in claim 2, characterized in that: The vertical base frame (11), the horizontal base frame (12), the vertical bracket (31), and the horizontal bracket (33) are all made of aluminum alloy with a lightweight structure.

4. A railcar floor bracket as described in claim 1, characterized in that: The buffer assembly (2) includes two buffer blocks (21), which are spring steel with high elasticity and yield strength. Both buffer blocks (21) are fixedly connected to the upper side of the vertical base frame (11) by mounting blocks (22), which are fixedly connected to the vertical base frame (11) by screws.

5. A railcar floor bracket as described in claim 4, characterized in that: The mounting block (22) and the buffer block (21) both have a limit screw (24) that moves through them. The lower end of the limit screw (24) is screwed into the interior of the vertical base frame (11) by a thread.

6. A railcar floor bracket as described in claim 4, characterized in that: The buffer assembly (2) further includes a connecting block (25), the two ends of which are respectively hinged to one end of the two buffer blocks (21).

7. A railcar floor bracket as described in claim 4, characterized in that: The buffer assembly (2) also includes a damping shock absorber (26), the lower end of which is hinged to the inside of the vertical base frame (11), and the upper end of which is hinged to the inside of the vertical bracket (31).

8. A railcar floor bracket as described in claim 4, characterized in that: The number of buffer components (2) is two sets, and they are symmetrically distributed front and back.

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