Lightweight upper bracket for front suspension of heavy truck cab

Abstract

The application relates to the technical field of a commercial vehicle cab suspension system, and discloses a lightweight upper support of a front suspension of a heavy truck cab, which comprises a mounting bent plate, two supporting plates, a connecting fixed plate one and a connecting fixed plate two, the two supporting plates are fixedly installed at the bottom of the left side of the mounting bent plate, the connecting fixed plate one is fixedly installed on the left side wall of the mounting bent plate, the top of each of the two supporting plates is fixedly connected with the bottom of the connecting fixed plate one, the connecting fixed plate two is fixedly installed at the bottom of the mounting bent plate, the right side of each of the two supporting plates is fixedly connected with the left side wall of the connecting fixed plate two, the two supporting plates are arranged in an eight-character shape, the same sleeve is fixedly installed on the two supporting plates, and the two supporting plates are each provided with a weight-reducing hole. The application has the following advantages and effects: the overall rigidity and deformation resistance of the upper support can be greatly improved, the overall weight of the upper support is reduced, and the upper support has the advantages of strong load bearing stability and light weight.

Description

Technical Field

[0001] This application relates to the technical field of commercial vehicle cab suspension systems, and in particular to a lightweight upper bracket for the front suspension of a heavy-duty truck cab. Background Technology

[0002] Today, heavy trucks are the core equipment in the freight industry. Their cab front suspension system plays a crucial role in connecting the cab and the chassis, buffering driving bumps, and transmitting loads. The front suspension upper bracket, as the core load-bearing component of the system, directly affects the stability, safety, and overall vehicle driving performance of the cab. A search revealed a patent document with authorization announcement number CN221091012U, which discloses a lightweight upper bracket for the front suspension of a heavy-duty truck cab. The upper bracket assembly includes a mounting bend plate, the included angle between the two panels of the mounting bend plate being an obtuse angle, and each of the two panels having an opening groove and several mounting holes. A support plate is provided at the bottom of the support plate, which consists of two parallel plates symmetrically fixed to the bottom surface of one side of the outer corner of the mounting bend plate. Holes are symmetrically provided below the two support plates, and sleeves for connecting the two support plates are installed in the holes. This lightweight upper bracket for the front suspension of a heavy-duty truck cab is formed by stamping multiple stamped parts, realizing the function of connecting and supporting the cab. While ensuring the same strength, it reduces the weight compared to cast steel parts, and the price of stamped parts of the same weight is lower than that of cast steel. This makes the overall product structure simple, effectively reducing the overall weight, while also ensuring strength during use.

[0003] The above-mentioned solution still has at least the following shortcomings in actual use: Since the existing support plates mostly adopt a parallel arrangement design, they cannot effectively distribute the combined load in the vertical and horizontal directions, resulting in the load being concentrated in local areas (such as the welding point between the support plate and the mounting bend). Long-term use is prone to fatigue fracture of the weld layer, which in turn leads to insufficient overall rigidity and deformation resistance of the upper support. Moreover, the existing support plates and connecting fixing plates are made of solid sheet metal without targeted weight reduction design, which will increase the overall weight of the upper support.

[0004] Therefore, we propose a lightweight upper bracket for the front suspension of a heavy-duty truck cab to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a lightweight upper bracket for the front suspension of a heavy-duty truck cab, which has the effects of strong load-bearing stability and lightweight design.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a lightweight upper bracket for the front suspension of a heavy-duty truck cab, comprising a mounting bend plate, two support plates, a first connecting fixing plate, and a second connecting fixing plate. Both support plates are fixedly installed on the bottom left side of the mounting bend plate, the first connecting fixing plate is fixedly installed on the left side wall of the mounting bend plate, the tops of both support plates are fixedly connected to the bottom of the first connecting fixing plate, the second connecting fixing plate is fixedly installed on the bottom of the mounting bend plate, the right sides of both support plates are fixedly connected to the left side wall of the second connecting fixing plate, the two support plates are arranged in a V-shape, the same sleeve is fixedly installed on the two support plates, and weight reduction holes are provided on both support plates.

[0007] By adopting the above technical solution, two support plates arranged in a figure-eight shape are designed, which can effectively distribute the force and improve the load-bearing capacity of the overall structure of the upper support. The design of the weight-reducing holes can reduce the weight of the support plates.

[0008] A further feature of this application is that both support plates are provided with assembly holes, and the two ends of the sleeve pass through the corresponding assembly holes.

[0009] By adopting the above technical solution, it is convenient to assemble and fix the sleeve.

[0010] A further feature of this application is that a plurality of reinforcing rods are fixedly installed inside the weight-reducing hole, and the plurality of reinforcing rods are evenly distributed.

[0011] By adopting the above technical solution, the structural strength of the support plate has been enhanced.

[0012] A further feature of this application is that a second reinforcing rod is fixedly installed inside the weight-reducing hole, and the second reinforcing rod is arranged perpendicularly to the first reinforcing rod.

[0013] By adopting the above technical solutions, the structural strength of the support plate is further enhanced.

[0014] A further feature of this application is that a plurality of uniformly distributed reinforcing ribs are fixedly installed between the two support plates.

[0015] By adopting the above technical solution, the stability of the two support plates is enhanced, and the overall rigidity and deformation resistance of the upper support are further improved.

[0016] A further feature of this application is that the reinforcing rib has a hollow structure.

[0017] By adopting the above technical solution, the stability of the support plate is ensured while the weight of the reinforcing ribs is reduced.

[0018] A further feature of this application is that both the first connecting plate and the second connecting plate have multiple evenly distributed perforated holes.

[0019] By adopting the above technical solution, the weight of connecting fixing plate one and connecting fixing plate two has been reduced.

[0020] A further feature of this application is that the mounting plate has multiple mounting holes, and multiple projection weld nuts are fixedly installed on the bottom of the mounting plate, with the mounting holes communicating with the corresponding projection weld nuts.

[0021] By adopting the above technical solution, it is convenient to assemble and fix the bent plate.

[0022] A further feature of this application is that: a reinforcing block is fixedly installed on the side of each of the two support plates that is far apart from each other, and the right side of each of the two reinforcing blocks is fixedly connected to the left side wall of the connecting and fixing plate two.

[0023] By adopting the above technical solution, the connection strength between the support plate and the second connecting and fixing plate is strengthened, further enhancing the overall rigidity and deformation resistance of the upper bracket.

[0024] A further feature of this application is that the reinforcing block has a hollow structure.

[0025] By adopting the above technical solution, the stability of the connection between the support plate and the connecting fixing plate is ensured while the weight of the reinforcing block is reduced.

[0026] This application includes at least one of the following beneficial technical effects:

[0027] This application utilizes two support plates arranged in a V-shape to be fixed to the bottom left side of the mounting bend plate. This converts the concentrated load transmitted by the mounting bend plate into a distributed force on both sides, avoiding overload in one direction. At the same time, it expands the support area and improves the overall load-bearing capacity and deformation resistance. Through multiple lightweight designs, such as opening weight-reduction holes on the support plates, using hollow structures for the reinforcing ribs, setting hollow holes in the connecting fixing plates one and two, and designing the reinforcing blocks as hollow structures, the overall weight is significantly reduced while ensuring structural strength. This helps to improve the fuel economy of heavy trucks and has a positive impact on driving performance. Attached Figure Description

[0028] Figure 1 This is a front-view stereoscopic structural diagram of this embodiment.

[0029] Figure 2 This is a top-view three-dimensional structural diagram of this embodiment.

[0030] Figure 3 This is a schematic diagram of the left-side stereoscopic structure of this embodiment.

[0031] Figure 4 This is a bottom-view three-dimensional structural diagram of this embodiment.

[0032] In the diagram: 1. Mounting bend plate; 2. Support plate; 3. Connecting and fixing plate one; 4. Connecting and fixing plate two; 5. Sleeve; 6. Weight reduction hole; 7. Reinforcing rod one; 8. Reinforcing rod two; 9. Reinforcing rib; 10. Hollow hole; 11. Mounting hole; 12. Projection weld nut; 13. Reinforcing block. Detailed Implementation

[0033] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0034] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This application provides a lightweight upper bracket for the front suspension of a heavy-duty truck cab, including a mounting bend 1, two support plates 2, a first connecting fixing plate 3, and a second connecting fixing plate 4. Both support plates 2 are fixedly installed on the bottom left side of the mounting bend 1. The first connecting fixing plate 3 is fixedly installed on the left side wall of the mounting bend 1. The tops of both support plates 2 are fixedly connected to the bottom of the first connecting fixing plate 3. The second connecting fixing plate 4 is fixedly installed on the bottom of the mounting bend 1. The right sides of both support plates 2 are fixedly connected to the left side wall of the second connecting fixing plate 4. The two support plates 2 are arranged in a V-shape. The design of the two V-shaped supports... The support plates 2 arranged in a U-shape can effectively distribute the force and improve the overall load-bearing capacity of the upper support structure. The same sleeve 5 is fixedly installed on the two support plates 2. Weight reduction holes 6 are opened on both support plates 2. The design of weight reduction holes 6 can reduce the weight of the support plates 2. Multiple evenly distributed reinforcing ribs 9 are fixedly installed between the two support plates 2. The design of multiple reinforcing ribs 9 enhances the stability of the two support plates 2 and further improves the overall rigidity and deformation resistance of the upper support. The reinforcing ribs 9 have a hollow structure, which reduces the weight of the reinforcing ribs 9 while ensuring the stability of the support plates 2.

[0035] In this embodiment, both support plates 2 are provided with assembly holes, and the two ends of the sleeve 5 pass through the corresponding assembly holes, which facilitates the assembly and fixing of the sleeve 5.

[0036] In this embodiment, multiple reinforcing rods 7 are fixedly installed inside the weight reduction hole 6. The multiple reinforcing rods 7 are evenly distributed. The design of multiple reinforcing rods 7 enhances the structural strength of the support plate 2 and avoids reducing its load-bearing capacity due to the opening of the weight reduction hole 6. Reinforcing rods 8 are fixedly installed inside the weight reduction hole 6. The reinforcing rods 8 are arranged perpendicularly to the reinforcing rods 7. The design of the reinforcing rods 8 further enhances the structural strength of the support plate 2.

[0037] In this embodiment, both the first connecting plate 3 and the second connecting plate 4 are provided with a plurality of evenly distributed hollow holes 10. The design of the hollow holes 10 reduces the weight of the first connecting plate 3 and the second connecting plate 4.

[0038] In this embodiment, the mounting plate 1 has multiple mounting holes 11, and multiple projection weld nuts 12 are fixedly installed on the bottom of the mounting plate 1. The mounting holes 11 are connected to the corresponding projection weld nuts 12 to facilitate the assembly and fixing of the mounting plate 1.

[0039] In this embodiment, a reinforcing block 13 is fixedly installed on the side of each of the two support plates 2 that is far apart from each other. The right side of each of the two reinforcing blocks 13 is fixedly connected to the left side wall of the connecting fixing plate 2 4. The design of the reinforcing block 13 strengthens the connection strength between the support plate 2 and the connecting fixing plate 2 4, further enhancing the overall rigidity and deformation resistance of the upper bracket. The reinforcing block 13 has a hollow structure, which reduces the weight of the reinforcing block 13 while ensuring the connection stability between the support plate 2 and the connecting fixing plate 2 4.

[0040] In this embodiment, it should be noted that the mounting bend plate 1, support plate 2, connecting fixing plate one 3, and connecting fixing plate two 4 are all stamped parts. The stamped parts, sleeve 5, reinforcing rod one 7, reinforcing rod two 8, reinforcing rib 9, and reinforcing block 13 are fixedly connected by welding. The stamped parts, sleeve 5, reinforcing rod one 7, reinforcing rod two 8, reinforcing rib 9, and reinforcing block 13 are all made of DL510 steel. This steel material has good strength and toughness, which can meet the operating conditions of the front suspension bracket of the heavy truck cab, and ensure the service life and safety of the bracket.

[0041] With the above structure, the lightweight upper bracket for the front suspension of the heavy-duty truck cab provided in this application, when in use, serves as a key load-bearing component of the front suspension system of the heavy-duty truck cab. Its core function is to connect the cab and the front suspension structure of the frame, and to achieve two main functions: firstly, to bear the vertical loads (such as the cab's own weight and the impact load during bumpy driving) and horizontal loads (such as the lateral force during steering or braking) transmitted from the cab; secondly, to balance lightweight and high strength through structural design during load transmission, avoiding deformation or breakage and ensuring the stable operation of the cab suspension system. During the use of this upper bracket, the starting point for force transmission is the mounting bend plate 1. The cab or related suspension components directly transmit the load to the mounting bend plate 1 through the cooperation of the mounting hole 11 and the projection weld nut 12. Subsequently, the mounting bend plate 1, as the basic load-bearing component, distributes the load to the support plate 2, connecting fixing plate 1 3, and connecting fixing plate 2 4 welded to it. Finally, through the coordinated action of each component, the load is smoothly transmitted to the front suspension structure of the frame.

[0042] By using two support plates 2 arranged in a V-shape and fixed to the bottom left side of the mounting bend 1, the concentrated load transmitted by the mounting bend 1 (such as the weight of the cab vertically downward) can be converted into a component force distributed to both sides, avoiding overload in one direction. At the same time, the support area is increased, improving the overall load-bearing capacity and deformation resistance. By opening weight-reducing holes 6 on the support plates 2, the weight of the support plates 2 can be reduced. Combined with the design of reinforcing rod 1 7 and reinforcing rod 2 8, the mechanical strength of the support plates 2 can be enhanced, achieving the effect of weight reduction without reducing strength. By setting multiple evenly distributed reinforcing ribs 9, the stability between the support plates 2 can be enhanced, which can resist the bumps of heavy truck driving. The vertical impact load at that time prevents the middle area of ​​the support plate 2 from denting and deforming due to the large span. The reinforcing ribs 9 of the hollow structure of the lifting mechanism also achieve the effect of reducing weight without reducing force. By setting the reinforcing block 13, the connection stability between the support plate 2 and the connecting fixing plate 2 4 can be enhanced, effectively reducing the situation of stress concentration and cracking. The concentrated stress can be dispersed to a larger area of ​​the welding surface, avoiding the breakage at the node due to local overload. Furthermore, the design of the reinforcing block 13 as a hollow structure, as well as the multiple hollow holes 10 on the connecting fixing plate 1 3 and the connecting fixing plate 2 4, also achieve the effect of reducing weight without reducing force, thereby ensuring that the upper support has the advantages of strong load-bearing stability and lightweight.

Claims

1. A lightweight upper bracket for the front suspension of a heavy-duty truck cab, characterized in that, The assembly includes a mounting bend plate (1), two support plates (2), a first connecting fixing plate (3), and a second connecting fixing plate (4). The two support plates (2) are fixedly installed on the bottom left side of the mounting bend plate (1). The first connecting fixing plate (3) is fixedly installed on the left side wall of the mounting bend plate (1). The tops of the two support plates (2) are fixedly connected to the bottom of the first connecting fixing plate (3). The second connecting fixing plate (4) is fixedly installed on the bottom of the mounting bend plate (1). The right sides of the two support plates (2) are fixedly connected to the left side wall of the second connecting fixing plate (4). The two support plates (2) are arranged in a figure-eight shape. The same sleeve (5) is fixedly installed on the two support plates (2). The two support plates (2) are provided with weight reduction holes (6).

2. The lightweight upper bracket for the front suspension of a heavy-duty truck cab according to claim 1, characterized in that: Both of the support plates (2) are provided with assembly holes, and the two ends of the sleeve (5) pass through the corresponding assembly holes respectively.

3. The lightweight upper bracket for the front suspension of a heavy-duty truck cab according to claim 1, characterized in that: Multiple reinforcing rods (7) are fixedly installed inside the weight reduction hole (6), and the multiple reinforcing rods (7) are evenly distributed.

4. The lightweight upper bracket for the front suspension of a heavy-duty truck cab according to claim 3, characterized in that: A second reinforcing rod (8) is fixedly installed inside the weight reduction hole (6), and the second reinforcing rod (8) is arranged perpendicularly to the first reinforcing rod (7).

5. The lightweight upper bracket for the front suspension of a heavy-duty truck cab according to claim 1, characterized in that: Multiple evenly distributed reinforcing ribs (9) are fixedly installed between the two support plates (2).

6. The lightweight upper bracket for the front suspension of a heavy-duty truck cab according to claim 5, characterized in that: The reinforcing rib (9) has a hollow structure.

7. The lightweight upper bracket for the front suspension of a heavy-duty truck cab according to claim 1, characterized in that: Both the first connecting fixing plate (3) and the second connecting fixing plate (4) are provided with a plurality of evenly distributed hollow holes (10).

8. The lightweight upper bracket for the front suspension of a heavy-duty truck cab according to claim 1, characterized in that: The mounting bend (1) has multiple mounting holes (11), and multiple projection weld nuts (12) are fixedly installed on the bottom of the mounting bend (1). The mounting holes (11) are connected to the corresponding projection weld nuts (12).

9. The lightweight upper bracket for the front suspension of a heavy-duty truck cab according to claim 1, characterized in that: A reinforcing block (13) is fixedly installed on the side of each of the two support plates (2) that is far apart from each other, and the right side of each of the two reinforcing blocks (13) is fixedly connected to the left side wall of the connecting and fixing plate two (4).

10. The lightweight upper bracket for the front suspension of a heavy-duty truck cab according to claim 9, characterized in that: The reinforcing block (13) has a hollow structure.

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