Frame rear section assembly, frame and vehicle

Abstract

The utility model relates to a vehicle frame rear section assembly, a vehicle frame and a vehicle. The vehicle frame rear section assembly comprises a vehicle frame rear section body and two rear axle reinforcing plates. The frame rear section body comprises a left frame part, a right frame part and an upper frame part, the left frame part is connected to the left side of the upper frame part, the right frame part is connected to the right side of the upper frame part, and the left frame part and the right frame part are opposite in the left-right direction and are arranged at intervals; the left frame part comprises a first inner side face opposite to the right frame part, and the right frame part comprises a second inner side face opposite to the left frame part. Wherein one rear axle reinforcing plate is connected to the first inner side face, and the other rear axle reinforcing plate is connected to the second inner side face. The strength is improved under the condition that the width of the frame rear section assembly in the left-right direction is not increased, and space optimization and utilization are facilitated.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of vehicles, in particular to a rear frame assembly, a frame and a vehicle. BACKGROUND

[0002] In the related art, the frame of a new energy bus is generally a full load bearing structure, and the suspension is a leaf spring structure. If an air suspension with better comfort is used, a problem arises, that is, under the existing bridge resource conditions, the width of the frame longitudinal beam is difficult to widen, thereby making it difficult to ensure the strength of the frame. That is, the problem to be solved is how to increase the strength of the frame without changing the total width of the frame. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present disclosure is to provide a rear frame assembly, a frame and a vehicle to solve the technical problems existing in the related art.

[0004] In order to achieve the above purpose, the present disclosure provides a rear frame assembly, which comprises a rear frame body and two rear axle reinforcement plates.

[0005] The rear frame body comprises a left side frame portion, a right side frame portion and an upper side frame portion, the left side frame portion is connected to the left side of the upper side frame portion, the right side frame portion is connected to the right side of the upper side frame portion, and the left side frame portion and the right side frame portion are oppositely and spacedly arranged in the left-right direction.

[0006] The left side frame portion comprises a first inner side surface opposite to the right side frame portion, and the right side frame portion comprises a second inner side surface opposite to the left side frame portion.

[0007] One of the rear axle reinforcement plates is connected to the first inner side surface, and the other rear axle reinforcement plate is connected to the second inner side surface.

[0008] Optionally, the rear axle reinforcement plate comprises a reinforcement plate body, a first reinforcement end plate and a second reinforcement end plate.

[0009] The reinforcement plate body is arranged in the front-rear direction.

[0010] The first reinforcement end plate is arranged at the lower end of the front portion of the reinforcement plate body, and the front side edge of the first reinforcement end plate is flush with the front side edge of the reinforcement plate body in the front-rear direction.

[0011] The second reinforcement end plate is arranged at the lower end of the rear portion of the reinforcement plate body, and the rear side edge of the second reinforcement end plate is flush with the rear side edge of the reinforcement plate body in the front-rear direction.

[0012] Optionally, the reinforcing plate body is provided with a plurality of body weight reduction grooves, and the body weight reduction grooves are arranged in pairs in the front-rear direction.

[0013] Optionally, the reinforcing plate body is provided with a plurality of body welding points, and the body welding points are arranged around the body weight reduction grooves; the first reinforcing end plate is provided with a plurality of first welding points, and the first welding points are arranged around the first weight reduction groove; and the second reinforcing end plate is provided with a plurality of second welding points, and the second welding points are arranged around the second weight reduction groove.

[0014] Optionally, the reinforcing plate body is configured as a rectangular plate, the first reinforcing end plate and the second reinforcing end plate are configured as triangular plates, and the reinforcing plate body, the first reinforcing end plate and the second reinforcing end plate are configured as an integrally formed structure.

[0015] Optionally, the rear frame assembly further comprises a thrust rod support.

[0016] The thrust rod support is connected between the rear axle reinforcing plate and the first inner side surface, and the thrust rod support is used to install a transverse thrust rod of an air suspension.

[0017] And / or,

[0018] The thrust rod support is connected between the rear axle reinforcing plate and the second inner side surface, and the thrust rod support is used to install a transverse thrust rod of an air suspension.

[0019] Optionally, the thrust rod support comprises a support bottom plate, a first reinforcing plate, a second reinforcing plate, a first sleeve and a second sleeve.

[0020] The support bottom plate is connected between the rear axle reinforcing plate and the rear frame body, the first sleeve and the second sleeve are arranged vertically on the support bottom plate and are arranged in pairs, the first reinforcing plate connects the support bottom plate and the first sleeve, and the second reinforcing plate connects the support bottom plate and the second sleeve.

[0021] The first reinforcing plate, the second reinforcing plate, the first sleeve and the second sleeve are exposed through the body weight reduction groove.

[0022] Optionally, the support bottom plate is provided with a plurality of third welding points, and the third welding points are used to be welded between the rear axle reinforcing plate and the rear frame body.

[0023] The support bottom plate is further provided with a third weight reduction groove, and the third weight reduction groove is located between the first reinforcing plate and the second reinforcing plate.

[0024] The present disclosure also provides a vehicle comprising the rear frame assembly.

[0025] The present disclosure also provides a vehicle comprising the rear frame assembly.

[0026] In the above technical solution, first, by setting the rear axle reinforcement plate on the first inner side surface of the left frame part and the second inner side surface of the right frame part, the rigidity and load-bearing capacity of the left and right sides of the rear frame assembly are effectively enhanced, which helps to disperse and withstand the stress generated during the operation of the vehicle, thereby improving the durability and strength of the entire frame. Secondly, by setting the rear axle reinforcement plate on the inner side of the left frame part and the right frame part, the strength is improved without increasing the width of the rear frame assembly in the left-right direction, which is beneficial to the optimized use of space. In addition, from the perspective of the overall frame, by setting the rear axle reinforcement plate for reinforcement at this local part of the rear frame assembly, the overall strength is increased, the strength and stability are significantly improved without changing the width of the frame, and the strength of the frame against lateral force is improved.

[0027] Other features and advantages of the present disclosure will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, which together with the following detailed description, serve to explain the present disclosure. In the drawings:

[0029] Figure 1 is a partial structure diagram of the rear frame assembly of an embodiment of the present disclosure.

[0030] Figure 2 is a structure diagram of the rear axle reinforcement plate of the rear frame assembly of an embodiment of the present disclosure.

[0031] Figure 3 is a structure diagram of the thrust rod support of the rear frame assembly of an embodiment of the present disclosure.

[0032] Figure 4 is a sectional view of the thrust rod support of the rear frame assembly of an embodiment of the present disclosure.

[0033] BRIEF DESCRIPTION OF DRAWINGS

[0034] 1, rear frame body; 11, left frame part; 110, first inner side surface; 12, right frame part; 120, second inner side surface;

[0035] 2, rear axle reinforcement plate; 20, reinforcement plate body; 200, body lightening groove; 201, body welding point; 21, first reinforcement end plate; 210, first lightening groove; 211, first welding point; 22, second reinforcement end plate; 220, second lightening groove; 221, second welding point;

[0036] 3, thrust rod support; 30, support bottom plate; 300, third lightening groove; 301, third welding point; 31, first reinforcement plate; 32, second reinforcement plate; 33, first sleeve; 34, second sleeve. DETAILED DESCRIPTION

[0037] The specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0038] In the present disclosure, the orientation words such as "up, down, left, right, front, back" refer to the up, down, left, right, front, back defined by the vehicle in the normal use state, and the specific up, down, front, back directions can be referred to the drawings. Figure 1 The terms such as "first, second" are only used to distinguish one element from another element, and do not have sequentiality and importance.

[0039] Referring to Figure 1 to Figure 4 As shown in the drawings, the present disclosure provides a rear frame assembly, which comprises a rear frame body 1 and two rear axle reinforcement plates 2. The rear frame body 1 comprises a left side frame portion 11, a right side frame portion 12 and an upper side frame portion, the left side frame portion 11 is connected to the left side of the upper side frame portion, the right side frame portion 12 is connected to the right side of the upper side frame portion, and the left side frame portion 11 and the right side frame portion 12 are oppositely and spacedly arranged in the left-right direction. The left side frame portion 11 comprises a first inner side face 110 opposite to the right side frame portion 12, and the right side frame portion 12 comprises a second inner side face 120 opposite to the left side frame portion 11. One of the rear axle reinforcement plates 2 is connected to the first inner side face 110, and the other rear axle reinforcement plate 2 is connected to the second inner side face 120.

[0040] In the above technical solution, firstly, by arranging the rear axle reinforcing plate 2 on the first inner side surface 110 of the left side frame part 11 and the second inner side surface 120 of the right side frame part 12, the rigidity and load-bearing capacity of the left and right sides of the rear frame assembly are effectively enhanced, which helps to disperse and bear the stress generated during vehicle operation, thereby improving the durability and strength of the entire frame. Secondly, by arranging the rear axle reinforcing plate 2 on the inner side of the left side frame part 11 and the right side frame part 12, the strength is improved without increasing the width of the rear frame assembly in the left-right direction (i.e. without increasing the width of the frame in the left-right direction), which is beneficial for optimizing the use of space. In addition, from the perspective of the overall frame, by arranging the rear axle reinforcing plate 2 locally on the rear frame assembly for reinforcement, the overall strength is increased, which significantly improves the strength and stability without changing the width of the frame, thereby improving the strength of the frame against lateral force.

[0041] In one embodiment, referring to FIGS. 1-2, Figure 1 and Figure 2 the rear axle reinforcing plate 2 comprises a reinforcing plate body 20, a first reinforcing end plate 21, and a second reinforcing end plate 22; the reinforcing plate body 20 is arranged to extend in the front-rear direction; the first reinforcing end plate 21 is arranged at the lower end of the front part of the reinforcing plate body 20, and the front side edge of the first reinforcing end plate 21 is arranged flush with the front side edge of the reinforcing plate body 20 in the front-rear direction; the second reinforcing end plate 22 is arranged at the lower end of the rear part of the reinforcing plate body 20, and the rear side edge of the second reinforcing end plate 22 is arranged flush with the rear side edge of the reinforcing plate body 20 in the front-rear direction.

[0042] In this embodiment, the reinforcing plate body 20 is arranged to extend in the front-rear direction, which effectively disperses the stress generated during vehicle operation, thereby improving the rigidity and load-bearing capacity of the frame. The first reinforcing end plate 21 and the second reinforcing end plate 22 are respectively located at the lower end of the front part and the rear part of the reinforcing plate body 20, and their edges are arranged flush with the edges of the reinforcing plate body 20 in the front-rear direction, which makes the entire structure more compact and robust, and helps to further improve the local strength. Since the first reinforcing end plate 21 and the second reinforcing end plate 22 are respectively located at the two ends of the reinforcing plate body 20, this layout can more evenly distribute the stress borne by the frame, avoiding local failure caused by stress concentration. In particular, at the key stress points of the frame (such as the front end and the rear end of the frame), this way can significantly improve the fatigue resistance and prolong the service life of the frame.

[0043] Specifically, referring to FIG. 3, Figure 2 the reinforcing plate body 20 is provided with a plurality of body weight reduction grooves 200, and the plurality of body weight reduction grooves 200 are arranged in pairs in the front-rear direction; the first reinforcing end plate 21 is provided with at least one first weight reduction groove 210, and the second reinforcing end plate 22 is provided with at least one second weight reduction groove 220.

[0044] In this embodiment, the reinforcing plate body 20 is provided with a plurality of body weight reduction grooves 200, which are arranged in pairs in the front-rear direction. By removing unnecessary material, the weight of the overall structure can be significantly reduced. At least one first weight reduction groove 210 on the first reinforcing end plate 21 and at least one second weight reduction groove 220 on the second reinforcing end plate 22 also help to further reduce the weight. This design is conducive to the lightweighting of the vehicle frame.

[0045] Optionally, as shown in Figure 2 The reinforcing plate body 20 is provided with a plurality of body welding points 201, which are arranged around the body weight reduction grooves 200; the first reinforcing end plate 21 is provided with a plurality of first welding points 211, which are arranged around the first weight reduction groove 210; and the second reinforcing end plate 22 is provided with a plurality of second welding points 221, which are arranged around the second weight reduction groove 220.

[0046] In this embodiment, the plurality of body welding points 201 on the reinforcing plate body 20 are arranged around the body weight reduction grooves 200, which can significantly enhance the welding connection strength between the reinforcing plate and the vehicle frame. Similarly, the plurality of first welding points 211 on the first reinforcing end plate 21 are arranged around the first weight reduction groove 210, and the plurality of second welding points 221 on the second reinforcing end plate 22 are arranged around the second weight reduction groove 220, which also enhances the connection strength of these end plates with the vehicle frame. This design ensures that even in the presence of weight reduction grooves, a firm connection between the various components is ensured, preventing structural failure due to stress concentration. In addition, the design of welding points arranged around the weight reduction grooves helps to optimize the stress transmission path, and when the vehicle is subjected to impact or vibration during driving, the stress can be evenly distributed to the entire structure through the welding points, avoiding damage caused by local stress concentration. Furthermore, the arrangement of welding points around the weight reduction grooves can effectively disperse stress from critical locations, thereby improving the fatigue resistance and durability of the overall structure.

[0047] In another embodiment, as shown in Figure 1 and Figure 2 The reinforcing plate body 20 is configured as a rectangular plate, the first reinforcing end plate 21 and the second reinforcing end plate 22 are configured as triangular plates; and the reinforcing plate body 20, the first reinforcing end plate 21 and the second reinforcing end plate 22 are configured as an integrally formed structure.

[0048] In this embodiment, the reinforcement plate body 20 is configured as a rectangular plate, which can provide a larger planar support area, thereby improving the rigidity and load-bearing capacity of the overall structure. The first reinforcement end plate 21 and the second reinforcement end plate 22 are configured as triangular plates, which have higher stability and can effectively resist stress from different directions, thereby enhancing the strength of the key parts. However, the specific shape of the reinforcement plate body 20, the first reinforcement end plate 21, and the second reinforcement end plate 22 is not limited in the present disclosure. In addition, the one-piece design reduces the number of stress concentration points, further improving the overall stability and reliability of the structure.

[0049] Optionally, as shown in Figure 1 、 Figure 3 and Figure 4 , the rear frame assembly further comprises a thrust rod bracket 3; the thrust rod bracket 3 is connected between the rear axle reinforcement plate 2 and the first inner side surface 110, and the thrust rod bracket 3 is used to install the transverse thrust rod of the air suspension.

[0050] In this embodiment, the thrust rod bracket 3 is connected between the rear axle reinforcement plate 2 and the first inner side surface 110 of the left frame part 11, thereby increasing the local rigidity and overall stability of the frame. This design enables the frame to better withstand the force from the transverse thrust rod, especially when the vehicle encounters a lateral impact or turns during driving, which can effectively prevent the frame from deforming or being damaged.

[0051] The position and connection method of the thrust rod bracket are carefully designed to ensure that the stress transmitted by the transverse thrust rod can be evenly distributed to the frame, avoiding local stress concentration. By connecting the thrust rod bracket 3 to the reinforcement plate 2 and the first inner side surface 110, the fatigue resistance of these key parts is further enhanced, thereby prolonging the service life of the frame.

[0052] The transverse thrust rod is an important component of the air suspension system, responsible for controlling the lateral movement of the wheels and providing lateral support. The design of the thrust rod bracket 3 ensures the stable installation of the transverse thrust rod, thereby improving the overall performance of the air suspension system and enhancing the handling and ride comfort of the vehicle.

[0053] Optionally, the thrust rod bracket 3 is connected between the rear axle reinforcement plate 2 and the second inner side surface 120, and the thrust rod bracket 3 is used to install the transverse thrust rod of the air suspension. The specific effect is similar to the effect of being connected between the rear axle reinforcement plate 2 and the first inner side surface 110, which will not be repeated here.

[0054] Referring to Figure 3 and Figure 4As shown, the thrust rod support 3 comprises a support bottom plate 30, a first reinforcing plate 31, a second reinforcing plate 32, a first sleeve 33, and a second sleeve 34; the support bottom plate 30 is connected between the rear axle reinforcing plate 2 and the rear section body 1 of the frame, the first sleeve 33 and the second sleeve 34 are vertically arranged on the support bottom plate 30 and are arranged at intervals, the first reinforcing plate 31 connects the support bottom plate 30 and the first sleeve 33, and the second reinforcing plate 32 connects the support bottom plate 30 and the second sleeve 34; wherein the first reinforcing plate 31, the second reinforcing plate 32, the first sleeve 33, and the second sleeve 34 are exposed through the body weight reduction groove 200.

[0055] In this embodiment, the support bottom plate 30 is connected between the rear axle reinforcing plate 2 and the rear section body 1 of the frame, providing a solid foundation and enhancing the stability of the entire thrust rod support.

[0056] The first sleeve 33 and the second sleeve 34 are vertically arranged and arranged at intervals, which can effectively disperse the force transmitted by the transverse thrust rod and avoid single-point stress concentration.

[0057] The first reinforcing plate 31 and the second reinforcing plate 32 are respectively connected to the support bottom plate 30 and the corresponding sleeve, further enhancing the rigidity and load-carrying capacity of the overall structure and ensuring the reliability of the thrust rod support under various working conditions.

[0058] The vertically arranged first sleeve 33 and the second sleeve 34 are arranged at intervals, so that the stress transmitted by the transverse thrust rod can be evenly distributed on the support bottom plate 30, reducing the phenomenon of local stress concentration.

[0059] The design of the reinforcing plates 31 and 32 helps to disperse stress from key parts to the entire structure, improving fatigue resistance and prolonging service life.

[0060] The design of the body weight reduction groove 200 not only reduces unnecessary materials, but also optimizes the stress path, avoids interference in the structure, and improves the overall stability and durability of the structure.

[0061] Optionally, referring to Figure 3 As shown, the support bottom plate 30 is provided with a plurality of third welding points 301, and the plurality of third welding points 301 are used for welding between the rear axle reinforcing plate 2 and the rear section body 1 of the frame; the support bottom plate 30 is also provided with a third weight reduction groove 300, and the third weight reduction groove 300 is located between the first reinforcing plate 31 and the second reinforcing plate 32.

[0062] In this embodiment, the plurality of third welding points 301 are used to firmly weld the support bottom plate 30 between the rear axle reinforcing plate 2 and the rear section body 1 of the frame, ensuring reliable connection between the thrust rod support 3 and the frame.

[0063] The distribution of the third welding points 301 can evenly disperse stress, prevent structural failure caused by local stress concentration, and enhance the stability and carrying capacity of the overall structure.

[0064] The design of the third welding points 301 helps to optimize the stress transmission path, so that the stress transmitted by the transverse thrust rod can be more evenly distributed on the bracket bottom plate 30 and the rear axle reinforcement plate 2 and the rear section body 1 connected thereto, reducing stress concentration and improving fatigue resistance, prolonging the service life of the structure.

[0065] In addition, the third lightening groove 300 provided on the bracket bottom plate 30 can effectively reduce the use of materials, achieve lightweight design, while maintaining sufficient strength and rigidity. The position of the third lightening groove 300 is located between the first reinforcement plate 31 and the second reinforcement plate 32, avoiding weakening of the key stress area and ensuring the overall strength of the structure.

[0066] The present disclosure also provides a vehicle frame comprising the rear section assembly of the vehicle frame.

[0067] The present disclosure also provides a vehicle comprising the vehicle frame.

[0068] The preferred embodiments of the present disclosure are described in detail above in combination with the accompanying drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0069] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0070] In addition, various different embodiments of the present disclosure can also be combined in any appropriate manner, as long as they do not deviate from the idea of the present disclosure, they should also be considered as disclosed by the present disclosure.

Claims

1. A rear section frame assembly characterized by, The rear frame assembly comprises a rear frame body and two rear axle reinforcement plates; The rear frame body comprises a left side frame, a right side frame and an upper side frame, the left side frame is connected to the left side of the upper side frame, the right side frame is connected to the right side of the upper side frame, and the left side frame and the right side frame are oppositely and spacedly arranged in the left-right direction; The left side frame comprises a first inner side surface opposite to the right side frame, and the right side frame comprises a second inner side surface opposite to the left side frame; One of the rear axle reinforcement plates is connected to the first inner side surface, and the other rear axle reinforcement plate is connected to the second inner side surface.

2. The rear section frame assembly of claim 1, wherein, The rear axle reinforcement plate comprises a reinforcement plate body, a first reinforcement end plate and a second reinforcement end plate; The reinforcement plate body is arranged along the front-rear direction; The first reinforcement end plate is arranged at the lower end of the front part of the reinforcement plate body, and the front side edge of the first reinforcement end plate is flush with the front side edge of the reinforcement plate body in the front-rear direction; The second reinforcement end plate is arranged at the lower end of the rear part of the reinforcement plate body, and the rear side edge of the second reinforcement end plate is flush with the rear side edge of the reinforcement plate body in the front-rear direction.

3. The rear section frame assembly of claim 2, wherein, A plurality of body weight reduction grooves are arranged on the reinforcement plate body, and the body weight reduction grooves are spacedly arranged in pairs in the front-rear direction; at least one first weight reduction groove is arranged on the first reinforcement end plate, and at least one second weight reduction groove is arranged on the second reinforcement end plate.

4. The rear section frame assembly of claim 3, wherein, A plurality of body welding points are arranged on the reinforcement plate body, and the body welding points are arranged around the body weight reduction grooves; a plurality of first welding points are arranged on the first reinforcement end plate, and the first welding points are arranged around the first weight reduction groove; a plurality of second welding points are arranged on the second reinforcement end plate, and the second welding points are arranged around the second weight reduction groove.

5. The rear section assembly of any of claims 2-4, wherein, The reinforcement plate body is configured as a rectangular plate, the first reinforcement end plate and the second reinforcement end plate are configured as triangular plates; and the reinforcement plate body, the first reinforcement end plate and the second reinforcement end plate are configured as an integral structure.

6. The frame rear section assembly of claim 1, wherein, The rear frame assembly further comprises a thrust rod support; The thrust rod support is connected between the rear axle reinforcement plate and the first inner side surface, and the thrust rod support is used for mounting a transverse thrust rod of an air suspension; And / or, The thrust rod support is connected between the rear axle reinforcement plate and the second inner side surface, and the thrust rod support is used for mounting a transverse thrust rod of an air suspension.

7. The rear section frame assembly of claim 6, wherein, The thrust rod support comprises a support bottom plate, a first reinforcement plate, a second reinforcement plate, a first sleeve and a second sleeve; The support bottom plate is connected between the rear axle reinforcement plate and the rear frame body, the first sleeve and the second sleeve are vertically arranged on the support bottom plate and spacedly arranged, the first reinforcement plate connects the support bottom plate and the first sleeve, and the second reinforcement plate connects the support bottom plate and the second sleeve; The first reinforcement plate, the second reinforcement plate, the first sleeve and the second sleeve are exposed through the body weight reduction groove.

8. The rear section frame assembly of claim 7, wherein, A plurality of third welding points are arranged on the bracket bottom plate, and the plurality of third welding points are used for welding between the rear axle reinforcing plate and the rear section body of the frame. A third lightening groove is further arranged on the bracket bottom plate, and the third lightening groove is located between the first reinforcing plate and the second reinforcing plate.

9. A vehicle frame, characterized by The frame comprises the rear section assembly of any one of claims 1-8.

10. A vehicle characterized by comprising: The vehicle comprises the frame of claim 9.

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