Suspension assembly and vehicle

Abstract

The invention provides a suspension assembly and a vehicle, the suspension assembly comprises two longitudinal beams, an axle assembly, a cross beam assembly and a thrust rod assembly, the number of the longitudinal beams is two, and the two longitudinal beams are arranged at an interval along a first direction; the axle assembly comprises a front axle and a rear axle, and the front axle and the rear axle are arranged in a spaced mode and connected with the longitudinal beams. The cross beam assembly comprises a cross beam, a first support and a second support, the first support and the second support extend in the second direction, the second direction is perpendicular to the first direction, the two ends of the cross beam in the first direction are fixedly connected with the top of the first support and the top of the second support respectively, the cross beam, the first support and the second support are integrally formed, and a cavity is formed in the cross beam assembly; the thrust rod assembly is used for connecting the cross beam assembly and the axle assembly. The suspension assembly provided by the embodiment of the invention has the advantages of high structural strength, light weight and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of suspension, and in particular to a suspension assembly and a vehicle. Background Art

[0002] The suspension system is an important part of the vehicle chassis. Its main function is to connect the frame and the axle, transmit and buffer the impact from the road, and ensure the vehicle's driving stability, controllability and ride comfort. The performance of the suspension system directly affects the vehicle's carrying capacity, safety and service life, especially in the field of heavy-duty commercial vehicles. Since vehicles often operate under complex working conditions and high load conditions, the structural strength and reliability of the suspension system are particularly important.

[0003] At present, the existing suspension systems of heavy trucks mostly adopt a split structure design, for example, the balance shaft brackets on the left and right sides are connected to the frame crossbeams by bolts. Although this design meets the basic needs of the vehicle to a certain extent, it also has obvious disadvantages: first, the connection points of the split structure are prone to stress concentration, resulting in low structural strength, and prone to cracking or deformation under long-term high-load operation or complex road conditions; second, the assembly process of the split structure is complicated and requires multiple adjustments and tightening, which not only increases the assembly time, but may also cause assembly errors and affect the overall performance; in addition, the traditional suspension system is heavy, which is not conducive to the lightweight design of the vehicle, thereby affecting fuel economy and power performance. Summary of the invention

[0004] The present invention provides a suspension assembly, which is used to solve the defects of low structural strength, low assembly efficiency and heavy weight of the suspension in the prior art, and provides a suspension assembly with high structural strength, simple assembly and light weight.

[0005] The present invention also provides a vehicle with the suspension assembly.

[0006] The present invention provides a suspension assembly, comprising: A longitudinal beam, wherein two longitudinal beams are provided and the two longitudinal beams are spaced apart along a first direction; An axle assembly, the axle assembly comprising a front axle and a rear axle, the front axle and the rear axle are arranged at intervals and are both connected to the longitudinal beam; A crossbeam assembly, the crossbeam assembly comprising a crossbeam, a first bracket and a second bracket, the first bracket and the second bracket extending along a second direction, the second direction being perpendicular to the first direction, the two ends of the crossbeam in the first direction being fixedly connected to the top of the first bracket and the top of the second bracket respectively, the crossbeam, the first bracket and the second bracket being integrally formed, and a cavity being provided in the crossbeam assembly; A thrust rod assembly is used to connect the cross beam assembly and the axle assembly.

[0007] In some embodiments, the thrust rod assembly comprises: An upper thrust rod, the upper thrust rod being used to connect the axle assembly and the crossbeam; A lower thrust rod, one end of which is connected to the axle assembly, and the other end of which is connected to the bottom of the first bracket or the bottom of the second bracket.

[0008] In some embodiments, the beam comprises: A main body, wherein a first cavity is provided inside the main body; Connectors, there are four of the connectors, and two of the connectors are disposed at both ends of the main body in the first direction; A reinforcement member is provided between the main body and the longitudinal beam, and the connecting member is fixedly connected to the longitudinal beam through the reinforcement member.

[0009] In some embodiments, the body comprises: An upper avoidance hole, wherein the upper avoidance hole penetrates the main body along the extension direction of the longitudinal beam; A first connection portion, wherein two first connection portions are arranged on both sides of the upper avoidance hole in the first direction; The upper thrust rod includes an upper rod body and an upper rotating part. One end of the upper rod body is rotatably mounted on the upper rotating part. Both ends of the upper rotating part in the first direction are fixedly connected to the first connecting part. One end of the upper rod body can extend into the upper avoidance hole.

[0010] In some embodiments, the first bracket and the second bracket both include: A frame, wherein a second cavity is provided in the frame; A lower avoidance hole, which is arranged at the bottom of the frame and penetrates the frame along the extension direction of the longitudinal beam; A second connection portion, wherein two second connection portions are arranged on both sides of the lower avoidance hole in the first direction; The lower thrust rod includes a lower rod body and a lower rotating part. One end of the lower rod body is rotatably mounted on the lower rotating part. Both ends of the lower rotating part in the first direction are fixedly connected to the second connecting part. One end of the lower rod body can extend into the lower avoidance hole.

[0011] In some embodiments, the crossbar assembly comprises: a first side plate, the first side plate being arranged on a side of the first bracket adjacent to the second bracket; a second side plate, the second side plate being arranged on a side of the second bracket adjacent to the first bracket; A curved beam, wherein two ends of the curved beam are respectively fixedly connected to the first side plate and the second side plate.

[0012] In some embodiments, the crossbar assembly comprises: a first weight-reducing hole, wherein the first weight-reducing hole is provided on the crossbeam; A second weight-reducing hole, wherein the second weight-reducing hole is arranged on the first bracket and / or the second bracket.

[0013] In some embodiments, the suspension assembly includes a leaf spring assembly, which is arranged on a side of the longitudinal beam away from the cross beam, and two ends of the leaf spring assembly are respectively connected to the front axle and the rear axle.

[0014] In some embodiments, the crossbar assembly comprises: a third side plate, the third side plate being arranged on a side of the first bracket facing away from the second bracket; a fourth side plate, the fourth side plate being arranged on a side of the second bracket facing away from the first bracket; The two support parts are respectively arranged on the third side plate and the fourth side plate, and the two leaf spring assemblies are connected to the two support parts in a one-to-one correspondence.

[0015] The present invention provides a vehicle, comprising a suspension assembly, wherein the suspension assembly is the suspension assembly described in any one of the above embodiments.

[0016] The suspension assembly of the embodiment of the present invention improves the rigidity and strength of the overall structure of the suspension assembly by adopting an integrated design of the crossbeam, the first bracket and the second bracket, effectively avoiding the stress concentration problem caused by the weak connection points of the traditional split structure, thereby enhancing the torsion and deformation resistance of the suspension assembly under complex working conditions. At the same time, the integrated design simplifies the assembly process, and the crossbeam assembly can be directly installed as a whole, reducing the steps and time of on-site assembly, greatly improving assembly efficiency, and reducing labor costs and assembly errors.

[0017] In addition, a cavity structure is provided inside the crossbeam assembly, which achieves a lightweight design while ensuring the overall structural strength. This not only reduces the weight of the suspension assembly, but also optimizes the vehicle's fuel economy and power performance.

[0018] Therefore, the suspension assembly of the embodiment of the present invention has the advantages of high structural strength and light weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the suspension assembly provided by the present invention.

[0021] Figure 2 It is a structural schematic diagram of the suspension assembly provided by the present invention from another perspective.

[0022] Figure 3 It is a structural schematic diagram of the crossbeam component of the suspension assembly provided by the present invention.

[0023] Figure 4 It is a schematic structural diagram of the crossbeam component of the suspension assembly provided by the present invention from another perspective.

[0024] Figure 5 It is a schematic structural diagram of a curved beam of a suspension assembly provided by the present invention.

[0025] Figure 6 It is a schematic structural diagram of a reinforcement member of a suspension assembly provided by the present invention.

[0026] Reference numerals: 1. Longitudinal beam; 2. Axle assembly; 21. Front axle; 22. Rear axle; 3. Crossbeam assembly; 31. First bracket; 32. Second bracket; 311. First side panel; 321. Second side panel; 312. Third side panel; 322. Fourth side panel; 313. Frame; 314. Lower avoidance hole; 315. Second connecting part; 316. Support part; 33. Crossbeam; 331. Main body; 332. Connector; 333. Reinforcement member; 334. Upper avoidance hole; 335. First connecting part; 34. Bending beam; 35. First weight-reducing hole; 36. Second weight-reducing hole; 4. Thrust rod assembly; 41. Upper thrust rod; 411. Upper rod body; 42. Lower thrust rod; 421. Lower rod body; 5. Leaf spring assembly. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figures 1 to 6As shown, a suspension assembly according to an embodiment of the present invention includes a longitudinal beam 1, an axle assembly 2, a cross beam assembly 3 and a thrust rod assembly 4.

[0029] There are two longitudinal beams 1, and the two longitudinal beams 1 are arranged at intervals along the first direction; The axle assembly 2 includes a front axle 21 and a rear axle 22, which are arranged at intervals and are both connected to the longitudinal beam 1; The crossbeam assembly 3 includes a crossbeam 33, a first bracket 31 and a second bracket 32. The first bracket 31 and the second bracket 32 ​​extend along a second direction, and the second direction is perpendicular to the first direction. The two ends of the crossbeam 33 in the first direction are respectively fixedly connected to the top of the first bracket 31 and the top of the second bracket 32. The crossbeam 33, the first bracket 31 and the second bracket 32 ​​are integrally formed, and a cavity is provided in the crossbeam assembly 3. The thrust rod assembly 4 is used to connect the cross beam assembly 3 and the axle assembly 2 .

[0030] For ease of description, Figure 1 As shown, the technical solution of the present application is described by taking the first direction being consistent with the left-right direction, the second direction being consistent with the up-down direction, and the extending direction of the longitudinal beam 1 being consistent with the front-back direction as an example.

[0031] The longitudinal beam 1 extends in the front-rear direction, and two longitudinal beams 1 are arranged at intervals in the left-right direction.

[0032] The axle assemblies 2 are arranged at intervals along the front-rear direction, and the crossbeam assembly 3 is disposed between the front axle 21 and the rear axle 22 .

[0033] The crossbeam 33 extends in the left-right direction, the first bracket 31 and the second bracket 32 ​​both extend in the up-down direction, the left end of the crossbeam 33 is fixedly connected to the top of the first bracket 31, and the right end of the crossbeam 33 is fixedly connected to the top of the second bracket 32. The crossbeam 33, the first bracket 31 and the second bracket 32 ​​are integrally formed by casting. The crossbeam assembly 3 is a hollow structure, thereby reducing the mass of the crossbeam assembly 3.

[0034] The thrust rod assembly 4 connects the cross beam assembly 3 and the axle assembly 2 to ensure that various forces from the road surface can be effectively transmitted and dispersed during the driving of the vehicle, thereby improving the stability and reliability of the vehicle.

[0035] The suspension assembly of the embodiment of the present invention improves the rigidity and strength of the overall structure of the suspension assembly by adopting an integrated design of the crossbeam 33, the first bracket 31 and the second bracket 32, effectively avoiding the stress concentration problem caused by the weak connection points of the traditional split structure, thereby enhancing the anti-torsion and anti-deformation capabilities of the suspension assembly under complex working conditions. At the same time, the integrated design simplifies the assembly process, and the crossbeam assembly 3 can be directly installed as a whole, reducing the steps and time of on-site assembly, greatly improving assembly efficiency, and reducing labor costs and assembly errors.

[0036] In addition, a cavity structure is provided inside the crossbeam assembly 3, which realizes a lightweight design while ensuring the overall structural strength. It not only reduces the weight of the suspension assembly, but also optimizes the fuel economy and power performance of the vehicle.

[0037] Therefore, the suspension assembly of the embodiment of the present invention has the advantages of high structural strength and light weight.

[0038] In some embodiments, the thrust rod assembly 4 includes an upper thrust rod 41 and a lower thrust rod 42, the upper thrust rod 41 is used to connect the axle assembly 2 and the cross beam 33; one end of the lower thrust rod 42 is connected to the axle assembly 2, and the other end of the lower thrust rod 42 is connected to the bottom of the first bracket 31 or the bottom of the second bracket 32.

[0039] For example, the upper thrust rod 41 is used to connect the axle assembly 2 and the cross beam 33, ensuring that the axle assembly 2 can transmit the force to the cross beam 33 through the upper thrust rod 41 when bouncing, thereby maintaining the relative stability between the axle assembly 2 and the frame.

[0040] One end of the lower thrust rod 42 is connected to the axle assembly 2, and the other end is connected to the bottom of the first bracket 31 or the bottom of the second bracket 32. Through the connection of the lower thrust rod 42, the force of the axle assembly 2 can be transmitted to the first bracket 31 or the second bracket 32, thereby dispersing the force of the axle assembly 2.

[0041] The suspension assembly of the embodiment of the present invention can enhance the torsional resistance and driving stability of the overall structure of the suspension assembly through the upper thrust rod 41 and the lower thrust rod 42 .

[0042] Optionally, the upper thrust rod 41 is a V-shaped rod.

[0043] In some embodiments, the cross beam 33 includes a main body 331, a connecting piece 332 and a reinforcing piece 333. A first cavity is provided inside the main body 331. There are four connecting pieces 332, and two connecting pieces 332 are provided at both ends of the main body 331 in the first direction. The reinforcing piece 333 is provided between the main body 331 and the longitudinal beam 1, and the connecting piece 332 is fixedly connected to the longitudinal beam 1 through the reinforcing piece 333.

[0044] For example, a first cavity is provided inside the main body 331, and the hollow design achieves lightweight while ensuring structural strength. There are four connecting parts 332, two connecting parts 332 are provided at the left end and the right end of the main body 331, and the two connecting parts 332 arranged at the same end of the main body 331 are arranged at intervals in the front-to-back direction.

[0045] The reinforcement 333 is arranged between the main body 331 and the longitudinal beam 1, and plays a role in enhancing the overall structural rigidity and torsional resistance. The connecting member 332 is fixedly connected to the longitudinal beam 1 through the reinforcement 333, ensuring that the connection between the cross beam 33 and the longitudinal beam 1 is more firm, and can effectively disperse and transmit various forces from the axle and the road surface, thereby improving the overall structural stability of the suspension assembly.

[0046] Optionally, the connecting member 332 , the reinforcing member 333 and the longitudinal beam 1 are connected by bolts.

[0047] In some embodiments, the main body 331 includes an upper avoidance hole 334 and a first connection portion 335 , and the upper avoidance hole 334 penetrates the main body 331 along the extension direction of the longitudinal beam 1 ; Two first connection parts 335 are provided on both sides of the upper avoidance hole 334 in the first direction; The upper thrust rod 41 includes an upper rod body 411 and an upper rotating part. One end of the upper rod body 411 is rotatably mounted on the upper rotating part. Both ends of the upper rotating part in the first direction are fixedly connected to the first connecting part 335. One end of the upper rod body 411 can extend into the upper avoidance hole 334.

[0048] For example, the upper avoidance hole 334 penetrates the main body 331 along the front-to-back direction, providing space for the installation and movement of the upper rod body 411 , and the two first connection parts 335 are arranged at intervals on both sides of the upper avoidance hole 334 along the left-to-right direction.

[0049] The upper thrust rod 41 includes an upper rod body 411 and an upper rotating part. One end of the upper rod body 411 close to the cross beam 33 is sleeved on the upper rotating part, and the upper rod body 411 can rotate relative to the upper rotating part. Therefore, the upper rod body 411 can rotate flexibly when subjected to force, thereby adapting to the up and down bouncing of the axle.

[0050] The left and right ends of the upper rotating part are connected to the two first connecting parts 335 one by one, for example, by bolts, thereby ensuring that the connection between the upper thrust rod 41 and the main body 331 is firm and reliable. At the same time, one end of the upper rod body 411 can be extended into the upper avoidance hole 334, which not only ensures the freedom of movement of the upper thrust rod 41, but also avoids interference between the upper rod body 411 and the crossbeam 33.

[0051] Optionally, an upper avoidance hole 334 is provided at the left end and the right end of the cross beam 33, and two first connecting parts 335 are provided on the front and rear sides of each upper avoidance hole 334. Two upper rod bodies 411 are provided, one of which is used to connect the front axle 21 and the cross beam 33, and the other upper rod body 411 is used to connect the rear axle 22 and the cross beam 33.

[0052] The upper rod body 411 is a V-shaped rod, the angle of the V-shaped rod is rotatably connected to the front axle 21 or the rear axle 22, and one end of the V-shaped rod connected to the cross beam 33 has two ends, which are arranged one by one with the two upper avoidance holes 334.

[0053] In some embodiments, the first bracket 31 and the second bracket 32 ​​each include a bracket body 313, a lower avoidance hole 314 and a second connection portion 315, the bracket body 313 is provided with a second cavity, the lower avoidance hole 314 is provided at the bottom of the bracket body 313, and the lower avoidance hole 314 passes through the bracket body 313 along the extension direction of the longitudinal beam 1, and the two second connection portions 315 are provided on both sides of the lower avoidance hole 314 in the first direction; The lower thrust rod 42 includes a lower rod body 421 and a lower rotating part. One end of the lower rod body 421 is rotatably mounted on the lower rotating part. Both ends of the lower rotating part in the first direction are fixedly connected to the second connecting part 315. One end of the lower rod body 421 can extend into the lower avoidance hole 314.

[0054] For example, a second cavity is provided in the frame body 313 of the first bracket 31 and the second bracket 32 ​​, and the weight of the beam assembly 3 is further reduced while ensuring the structural strength through the hollow design.

[0055] The lower avoidance hole 314 is disposed at the bottom of the frame body 313 and penetrates the frame body 313 along the front-rear direction, thereby providing space for the movement of the lower thrust rod 42 . Two second connecting parts 315 are arranged on both sides of the lower avoidance hole 314 in the left and right directions, and are used to achieve a stable connection with the lower thrust rod 42. The lower thrust rod 42 includes a lower rod body 421 and a lower rotating part. One end of the lower rod body 421 is rotatably mounted on the lower rotating part, so that the lower rod body 421 can flexibly rotate when subjected to force, thereby adapting to the bouncing of the axle. The two ends of the lower rotating part in the left and right directions are fixedly connected to the second connecting parts 315 to ensure that the connection between the lower thrust rod 42 and the frame body 313 is firm and reliable. At the same time, a part of the lower rod body 421 can be extended into the lower avoidance hole 314, which not only ensures the freedom of movement of the lower thrust rod 42, but also avoids interference with the first bracket 31 or the second bracket 32. This design not only optimizes the force transmission path, but also improves the stability of the overall structure of the suspension assembly, and further enhances the vehicle's handling and safety under complex road conditions.

[0056] Optionally, four lower thrust rods 42 are provided. A lower thrust rod 42 is respectively provided at the left end and the right end of the front axle 21, and a lower thrust rod 42 is respectively provided at the left end and the right end of the rear axle 22.

[0057] In some embodiments, the crossbeam assembly 3 includes a first side plate 311, a second side plate 321 and a bent beam 34, wherein the first side plate 311 is disposed on a side of the first bracket 31 adjacent to the second bracket 32; the second side plate 321 is disposed on a side of the second bracket 32 ​​adjacent to the first bracket 31; and both ends of the bent beam 34 are fixedly connected to the first side plate 311 and the second side plate 321, respectively.

[0058] For example, the first bracket 31 is disposed on the left side of the cross beam 33 , the second bracket 32 ​​is disposed on the right side of the cross beam 33 , the first side plate 311 is disposed on the right side of the first bracket 31 , and the second side plate 321 is disposed on the left side of the second bracket 32 ​​.

[0059] The curved beam 34 is disposed between the first bracket 31 and the second bracket 32 ​​, one end of the curved beam 34 is connected to the first side plate 311 by bolts, and the other end of the curved beam 34 is connected to the second side plate 321 by bolts.

[0060] Optionally, the curved beam 34 has a curvature, for example, the curved beam 34 is convexly arranged downward.

[0061] In the suspension assembly of the embodiment of the present invention, the crossbeam 33, the first bracket 31, the second bracket 32 ​​and the curved beam 34 form a frame structure, thereby improving the overall structural strength and torsional resistance of the crossbeam assembly 3, and can effectively disperse and transmit various forces from the axle and the road surface. At the same time, the optimized design of the frame structure also enhances the stability of the crossbeam assembly 3, further improving the vehicle's controllability and safety under complex road conditions.

[0062] In some embodiments, the cross beam assembly 3 includes a first weight-reducing hole 35 and a second weight-reducing hole 36 . The first weight-reducing hole 35 is disposed on the cross beam 33 , and the second weight-reducing hole 36 is disposed on the first bracket 31 and / or the second bracket 32 ​​.

[0063] The second weight-reducing hole 36 is provided on the first bracket 31 , or the second weight-reducing hole 36 is provided on the second bracket 32 ​​, or the second weight-reducing hole 36 is provided on both the first bracket 31 and the second bracket 32 ​​.

[0064] The suspension assembly of the embodiment of the present invention effectively reduces the weight of the assembly while ensuring the overall structural strength and rigidity of the cross beam assembly 3 by providing the first weight-reducing hole 35 and the second weight-reducing hole 36, thereby achieving lightweighting of the suspension assembly, thereby reducing the overall mass of the vehicle and improving fuel economy and power performance.

[0065] In some embodiments, the suspension assembly includes a leaf spring assembly 5 , which is disposed on a side of the longitudinal beam 1 away from the cross beam 33 , and two ends of the leaf spring assembly 5 are respectively connected to the front axle 21 and the rear axle 22 .

[0066] There are two leaf spring assemblies 5, one on the left side of the cross beam 33 and one on the right side of the cross beam 33, and both leaf spring assemblies 5 are arranged on the side of the longitudinal beam 1 away from the cross beam 33. The front and rear ends of the leaf spring assembly 5 are connected to the front axle 21 and the rear axle 22 respectively.

[0067] The suspension assembly of the embodiment of the present invention can effectively buffer and absorb the impact and vibration from the road surface through the elastic characteristics of the leaf spring assembly 5, thereby improving the ride comfort and driving stability of the vehicle. At the same time, the setting of the leaf spring assembly 5 can also reduce the load of the crossbeam assembly 3, further optimize the force distribution of the overall structure of the suspension assembly, and enhance the vehicle's carrying capacity and durability.

[0068] In some embodiments, the beam assembly 3 includes a third side plate 312, a fourth side plate 322 and a support portion 316, the third side plate 312 is arranged on the side of the first bracket 31 away from the second bracket 32; the fourth side plate 322 is arranged on the side of the second bracket 32 ​​away from the first bracket 31; the two support portions 316 are respectively arranged on the third side plate 312 and the fourth side plate 322, and the two leaf spring assemblies 5 are connected to the two support portions 316 one by one.

[0069] The third side plate 312 is arranged on the left side of the first bracket 31, and the fourth side plate 322 is arranged on the right side of the second bracket 32. The two support parts 316 are respectively arranged on the third side plate 312 and the fourth side plate 322. The two leaf spring assemblies 5 are connected to the two support parts 316 in a one-to-one correspondence. Through this design, the leaf spring assembly 5 can be firmly connected to the beam assembly 3, effectively transmitting and dispersing the force from the axle. At the same time, the setting of the support part 316 enhances the overall stiffness and torsional resistance of the beam assembly 3, and further optimizes the driving stability and handling of the vehicle.

[0070] A vehicle according to an embodiment of the present invention comprises a suspension assembly, wherein the suspension assembly is the suspension assembly of any one of the above embodiments. The vehicle according to the embodiment of the present invention has the advantages of high structural strength and light weight.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A suspension assembly, characterized in that: include: A longitudinal beam, wherein two longitudinal beams are provided and the two longitudinal beams are spaced apart along a first direction; An axle assembly, the axle assembly comprising a front axle and a rear axle, the front axle and the rear axle are arranged at intervals and are both connected to the longitudinal beam; A crossbeam assembly, the crossbeam assembly comprising a crossbeam, a first bracket and a second bracket, the first bracket and the second bracket extending along a second direction, the second direction being perpendicular to the first direction, the two ends of the crossbeam in the first direction being fixedly connected to the top of the first bracket and the top of the second bracket respectively, the crossbeam, the first bracket and the second bracket being integrally formed, and a cavity being provided in the crossbeam assembly; A thrust rod assembly is used to connect the cross beam assembly and the axle assembly.

2. The suspension assembly according to claim 1, characterized in that: The thrust rod assembly comprises: An upper thrust rod, the upper thrust rod being used to connect the axle assembly and the crossbeam; A lower thrust rod, one end of which is connected to the axle assembly, and the other end of which is connected to the bottom of the first bracket or the bottom of the second bracket.

3. The suspension assembly according to claim 2, characterized in that: The crossbeam comprises: A main body, wherein a first cavity is provided inside the main body; Connectors, there are four of the connectors, and two of the connectors are disposed at both ends of the main body in the first direction; A reinforcement member is provided between the main body and the longitudinal beam, and the connecting member is fixedly connected to the longitudinal beam through the reinforcement member.

4. The suspension assembly according to claim 3, characterized in that: The subject includes: An upper avoidance hole, wherein the upper avoidance hole penetrates the main body along the extension direction of the longitudinal beam; A first connection portion, wherein two first connection portions are arranged on both sides of the upper avoidance hole in the first direction; The upper thrust rod includes an upper rod body and an upper rotating part. One end of the upper rod body is rotatably mounted on the upper rotating part. Both ends of the upper rotating part in the first direction are fixedly connected to the first connecting part. One end of the upper rod body can extend into the upper avoidance hole.

5. The suspension assembly according to claim 3, characterized in that: The first bracket and the second bracket both include: A frame, wherein a second cavity is provided in the frame; A lower avoidance hole, which is arranged at the bottom of the frame and penetrates the frame along the extension direction of the longitudinal beam; A second connection portion, wherein two second connection portions are arranged on both sides of the lower avoidance hole in the first direction; The lower thrust rod includes a lower rod body and a lower rotating part. One end of the lower rod body is rotatably mounted on the lower rotating part. Both ends of the lower rotating part in the first direction are fixedly connected to the second connecting part. One end of the lower rod body can extend into the lower avoidance hole.

6. The suspension assembly according to any one of claims 1 to 5, characterized in that: The crossbeam assembly comprises: a first side plate, the first side plate being arranged on a side of the first bracket adjacent to the second bracket; a second side plate, the second side plate being arranged on a side of the second bracket adjacent to the first bracket; A curved beam, wherein two ends of the curved beam are respectively fixedly connected to the first side plate and the second side plate.

7. The suspension assembly according to any one of claims 1 to 5, characterized in that: The crossbeam assembly comprises: a first weight-reducing hole, wherein the first weight-reducing hole is provided on the crossbeam; A second weight-reducing hole, wherein the second weight-reducing hole is arranged on the first bracket and / or the second bracket.

8. The suspension assembly according to any one of claims 1 to 5, characterized in that: The suspension assembly comprises a leaf spring assembly, wherein the leaf spring assembly is arranged on a side of the longitudinal beam away from the cross beam, and two ends of the leaf spring assembly are respectively connected to the front axle and the rear axle.

9. The suspension assembly according to claim 8, characterized in that: The crossbeam assembly comprises: a third side plate, the third side plate being arranged on a side of the first bracket facing away from the second bracket; a fourth side plate, the fourth side plate being arranged on a side of the second bracket facing away from the first bracket; The two support parts are respectively arranged on the third side plate and the fourth side plate, and the two leaf spring assemblies are connected to the two support parts in a one-to-one correspondence.

10. A vehicle, characterized in that: It comprises a suspension assembly, and the suspension assembly is the suspension assembly according to any one of claims 1-9.

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