CN222291822U - A subframe mounting bracket structure and vehicle - Google Patents

Abstract

The utility model provides a sub-frame mounting bracket structure and a vehicle, belonging to the field of vehicle technology, comprising two mounting bracket bodies symmetrically mounted on the left and right sides of the sub-frame, the two mounting bracket bodies are respectively used to connect the control arms on the corresponding sides; the lower end of the mounting bracket body is provided with a first extension plate extending to the front side and a second extension plate extending to the rear side, the first extension plate and the second extension plate are respectively welded to the sub-frame along the length direction. The utility model provides a sub-frame mounting bracket structure, the mounting bracket body is provided with a first extension plate and a second extension plate, by providing the first extension plate and the second extension plate, the welding area of the mounting bracket body and the sub-frame in the length direction is increased, and the connection area of the mounting bracket body and the sub-frame is changed, thereby reducing the sudden change in stiffness, improving the force at the end of the weld, thereby improving the durability of the position, improving the bearing capacity of the sub-frame, and thus improving the safety performance and quality of the vehicle.

Description

Auxiliary frame installing support structure and vehicle

Technical Field

The utility model belongs to the technical field of vehicles, and particularly relates to a subframe mounting bracket structure and a vehicle.

Background

The subframe may be considered as the backbone of the front and rear axles, which are integral parts of the front and rear axles. The subframe is not a complete frame, but is a bracket that supports the front and rear axles, and the suspension, through which the axles, suspension are then connected to the "positive frame", conventionally referred to as the "subframe". The sub-frame is used for blocking vibration and noise and reducing the noise from directly entering the carriage, so that the sub-frame is mostly arranged on luxury cars and off-road vehicles, and some cars are also provided with the sub-frame for the engine. The conventional load-bearing vehicle body without a subframe has a suspension directly connected to the steel plate of the vehicle body. The front and rear axles are thus all part and not an assembly. After the subframe is produced, the front and rear suspensions can be assembled on the subframe to form an axle assembly, and then the assembly is mounted on the vehicle body together.

The sub-frame is a very important safety and load bearing component in the chassis of the passenger car, which supports the front and rear axle load masses, isolates the vibration of the drive unit, and road surface excitation is transmitted to the sub-frame through the suspension structure. Therefore, whether the sub-frame strength satisfies the requirement is directly related to the safety of driving.

The road surface excitation force transmission way is that tires, steering knuckles, control arms, auxiliary frames and a vehicle body. The control arm is connected with the auxiliary frame through the mounting bracket, and the bearing capacity of the auxiliary frame is improved through optimizing the structure of the mounting bracket, so that the safety performance and quality of the vehicle are improved.

Disclosure of utility model

The utility model aims to provide a mounting bracket structure of an auxiliary frame, which improves the bearing capacity of the auxiliary frame by optimizing the structure of a mounting bracket, thereby improving the safety performance and quality of a vehicle.

In order to achieve the aim, the utility model adopts the technical scheme that the auxiliary frame mounting bracket structure comprises two mounting bracket bodies symmetrically arranged at the left side and the right side of the auxiliary frame, wherein the two mounting bracket bodies are respectively used for connecting control arms at the corresponding sides;

the lower extreme of installing support body is provided with the first extension board that extends to the front side and the second extension board that extends backward, first extension board with the second extension board is fixed in on the sub vehicle frame along length direction respectively.

In one possible implementation manner, the front end of the first extension plate is fixed on a connection structure of the frame and the auxiliary frame.

In one possible implementation manner, the mounting bracket body includes a first mounting plate body and a second mounting plate body, the first mounting plate body and the second mounting plate are fixed on the auxiliary frame along the front-rear direction at intervals, the first mounting plate body and a connecting plate body between the second mounting plate bodies, the connecting plate body is connected with the upper ends of the first mounting plate body and the second mounting plate body and is fixed with the auxiliary frame, the first extension plate is connected with the lower end of the first mounting plate body, and the second extension plate is connected with the lower end of the second mounting plate body.

In one possible implementation manner, the first mounting plate body is integrally formed with the connecting plate body, and the second mounting plate body is welded and fixed with the connecting plate body.

In one possible implementation manner, the connecting plate body is provided with an open slot, and the opening direction of the open slot faces to the outer side.

In one possible implementation, the width of the open slot increases sequentially from inside to outside.

In one possible implementation manner, a first flanging which is bent forward is arranged on the outer side of the first mounting plate body, and a second flanging which is bent backward is arranged on the outer side of the second mounting plate body.

In one possible implementation manner, a first connecting plate is connected between the first mounting plate and the first extension plate, the outer side of the first connecting plate is connected with the first flanging, and the front end of the first connecting plate is welded on a connecting structure of the frame and the auxiliary frame.

In one possible implementation manner, a second connecting plate is connected between the second mounting plate and the second extension plate, and the outer side of the second connecting plate is connected with the second flanging.

Compared with the prior art, the auxiliary frame mounting bracket structure has the beneficial effects that the mounting bracket bodies are respectively connected with the auxiliary frame and the control arm, the two mounting bracket bodies are respectively arranged at the left side and the right side of the auxiliary frame, the mounting bracket body is provided with the first extending plate and the second extending plate, the first extending plate extends forwards and is welded with the auxiliary frame, the second extending plate extends backwards and is welded with the auxiliary frame, the welding area of the mounting bracket body and the auxiliary frame in the length direction is increased by arranging the first extending plate and the second extending plate, the connection area of the mounting bracket body and the auxiliary frame is changed, so that the rigidity mutation is reduced, the stress at the tail end of a welding seam is improved, the durability of the position is improved, the bearing capacity of the auxiliary frame is improved, and the safety performance and the quality of a vehicle are further improved.

The utility model also provides a vehicle comprising the auxiliary frame mounting bracket structure.

Compared with the prior art, the auxiliary frame mounting bracket structure is used, so that the auxiliary frame mounting bracket structure has the same beneficial effects as the auxiliary frame mounting bracket structure, the bearing capacity of the mounting bracket body is improved, the stress concentration caused by abrupt change of the end structure of the welding seam is reduced by optimizing the structure of the mounting bracket body, and the durability of the welding seam is improved while the weight is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a subframe mounting bracket structure provided by the utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural diagram of a mounting bracket body provided by the utility model.

Reference numerals illustrate:

100. The auxiliary frame comprises an auxiliary frame body 110, a front cross beam 120, a longitudinal beam 130, a connecting structure 200, a mounting bracket body 210, a first mounting plate body 211, a first flanging, a second mounting plate body 220, a second flanging, a connecting plate body 230, a connecting plate body 231, an open slot 240, a first extending plate 250, a second extending plate 260, a first connecting plate 270 and a second connecting plate.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the claims, specification and drawings hereof, unless explicitly defined otherwise, the terms "first," "second," or "third," etc. are used for distinguishing between different objects and not for describing a particular sequential order.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, references to orientation words such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", "high", "low", etc. are based on the orientation and positional relationship shown in the drawings and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, nor should it be construed as limiting the specific scope of the utility model.

Referring to fig. 1, 2 and 3, a subframe mounting bracket structure provided by the present utility model will now be described. The auxiliary frame mounting bracket structure comprises two mounting bracket bodies 200 symmetrically arranged on the left side and the right side of the auxiliary frame 100, wherein the two mounting bracket bodies 200 are respectively used for connecting control arms on corresponding sides, the lower end of each mounting bracket body 200 is provided with a first extending plate 240 extending towards the front side and a second extending plate 250 extending backwards, and the first extending plate 240 and the second extending plate 250 are respectively welded on the auxiliary frame 100 along the length direction.

Compared with the prior art, the mounting bracket structure for the auxiliary frame provided by the utility model has the advantages that the mounting bracket bodies 200 are respectively connected with the auxiliary frame 100 and the control arm, the two mounting bracket bodies 200 are respectively arranged at the left side and the right side of the auxiliary frame 100, the mounting bracket bodies 200 are provided with the first extending plate 240 and the second extending plate 250, the first extending plate 240 extends towards the front side and is welded with the auxiliary frame 100, the second extending plate 250 extends towards the rear side and is welded with the auxiliary frame 100, the welding area of the mounting bracket bodies 200 and the auxiliary frame 100 in the length direction is increased by arranging the first extending plate 240 and the second extending plate 250, and the connection area of the mounting bracket bodies 200 and the auxiliary frame 100 is changed, so that the rigidity mutation is reduced, the stress at the tail end of a welding line is improved, the durability of the position is improved, the bearing capacity of the auxiliary frame 100 is improved, and the safety performance and the quality of a vehicle are further improved.

Notably, the subframe 100 can be considered to be the backbone of the front and rear axles, which are integral parts of the front and rear axles. The subframe 100 is not a complete frame, but rather is a bracket that supports the front and rear axles, the suspension, and through which the axles, suspension are connected to a "positive frame", conventionally referred to as a "subframe". The sub-frame is used for blocking vibration and noise and reducing the noise from directly entering the carriage, so that the sub-frame is mostly arranged on luxury cars and off-road vehicles, and some cars are also provided with the sub-frame for the engine. The suspension of a conventional load-bearing vehicle body without the subframe 100 is directly connected to the body steel. The front and rear axles are thus all part and not an assembly. After the subframe 100 is produced, the front-rear suspension may be assembled to the subframe 100 to form an axle assembly, and then the assembly is mounted to the vehicle body together.

The subframe 100 includes longitudinal beams 120 on both sides and a front cross member 110 on the front side, and the front cross member 110 is welded to the front ends of the two longitudinal beams 120, thereby forming the main structure of the subframe 100. The outboard front end of the longitudinal beam 120 is mounted with a connecting structure 130, which connecting structure 130 is used to connect the frame and the subframe 100, thereby forming a transfer path from subframe 100 to the frame.

The connection structure 130 includes a square tube vertically welded to the front end of the outer side of the longitudinal beam 120, a shaft sleeve is disposed in the square tube, connection holes are correspondingly formed in the upper and lower ends of the square tube, and the connection shaft penetrates through the shaft sleeve and the connection holes to connect the frame and the subframe 100.

In some embodiments, referring to fig. 2 to 3, the front end of the first extension plate 240 is welded to the connection structure 130 of the frame and the subframe 100. That is, the front end of the first extension plate 240 is welded to the rear sidewall of the square tube, so that the welding area of the first extension plate 240 can be increased, so that the first extension plate 240 has both the front-rear welding area and the left-right welding area, thereby improving the structural strength of the mounting bracket body 200 and improving the weak point of poor bearing capacity caused by the mounting bracket body 200.

In some embodiments, referring to fig. 2 to 3, the mounting bracket body 200 includes a first mounting plate body 210 and a second mounting plate body 220, where the first mounting plate body 210 and the second mounting plate are longitudinally disposed and parallel to each other, and the first mounting plate body 210 and the second mounting plate are welded to the subframe 100 at intervals along the front-rear direction, and the first mounting plate body 210 and the second mounting plate are welded to the longitudinal beam 120 of the subframe 100 along the shape, so that the welding area between the first mounting plate body 210 and the second mounting plate and the longitudinal beam 120 of the subframe 100 can be increased, and the structural strength can be improved.

The connecting plate body 230 is arranged between the first mounting plate body 210 and the second mounting plate body 220, the connecting plate body 230 is connected to the upper ends of the first mounting plate body 210 and the second mounting plate body 220 and is welded and fixed with the auxiliary frame 100, and the connecting plate body 230 is welded with the longitudinal beam 120 of the auxiliary frame 100 along with the shape, so that the welding area between the connecting plate body 230 and the longitudinal beam 120 of the auxiliary frame 100 can be improved, and the structural strength is improved.

The first extension plate 240 is connected to the lower end of the first mounting plate body 210, the first extension plate 240 and the first mounting plate body 210 form an L-shaped structure, the second extension plate 250 is connected to the lower end of the second mounting plate body 220, and the second extension plate 250 and the second mounting plate body 220 also form an L-shaped structure. The first extension plate 240 and the second extension plate 250 can extend the length of the weld with the longitudinal beam 120 of the subframe 100, thereby also improving abrupt stiffness changes at the ends of the weld and enhancing the durability of the weld.

Specifically, the first mounting plate body 210 and the connecting plate body 230 are integrally formed, and the first mounting plate body 210 and the connecting plate body 230 are formed by pressing, and a transition fillet is reserved in a bending area, so that internal stress is reduced. The second mounting plate body 220 is welded to the connecting plate body 230. One end of the rear side of the connection plate body 230 is welded to the front end surface of the second installation plate body 220, and the weld is provided along the left-right width direction of the connection plate body 230, so that the connection strength between the second installation plate body 220 and the connection plate body 230 can be ensured.

In addition, the first mounting plate body 210 and the second mounting plate body 220 are correspondingly provided with control arm mounting holes, and the two control arm mounting holes are used for cooperatively mounting the control arms on the corresponding sides. The first mounting plate body 210 and the second mounting plate body 220 may also be correspondingly provided with lightening holes and corresponding wire harness holes to improve the functionality of the first mounting plate body 210 and the second mounting plate body 220.

In addition, referring to fig. 2 and 3, the connecting plate body 230 is provided with an open slot 231, and the open direction of the open slot 231 faces to the outside. The above-mentioned open slot 231 can reduce the dead weight of installing support body 200, accords with the demand of quantification before the vehicle, simultaneously, the setting of above-mentioned open slot 231 can also promote the deformability of connecting plate body 230, reduces the terminal rigidity of welding seam of connecting plate body 230 and second mounting panel body 220, promotes the durability of its welding seam.

Preferably, the width of the open slot 231 increases from inside to outside, so as to greatly improve the deformation capability of the outer side of the connecting plate body 230, further reduce the rigidity of the welding seam end of the connecting plate body 230 and the second mounting plate body 220, and improve the durability of the welding seam.

The inner side and the outer side of the open slot 231 are provided with transition fillets to avoid stress concentration.

Referring to fig. 2 and 3, a first flange 211 bent forward is disposed on the outer side of the first mounting plate body 210, the first flange 211 and the first mounting plate are integrally formed, and a transition fillet is disposed between the first flange 211 and the first mounting plate, so as to reduce internal stress in the bending region. The outside of second mounting panel body 220 is provided with the second turn-ups 221 of backward buckling, and second turn-ups 221 and second mounting panel integrated into one piece possess the transition fillet between second turn-ups 221 and the second mounting panel, reduce the internal stress in the region of buckling.

In some embodiments, referring to fig. 2 and 3, a first connecting plate 260 is connected between the first mounting plate and the first extension plate 240, the outer side of the first connecting plate 260 is connected with the first flange 211, and the first mounting plate, the first extension plate 240 and the first flange 211 are integrally formed to form a stable integral structure, so as to improve the overall structural strength. The front end of the first connecting plate 260 is welded on the connection structure 130 of the frame and the subframe 100, that is, the front end of the first connecting plate 260 is welded on the rear side wall of the square tube, so that the welding area of the first extending plate 240 can be increased, and the first extending plate 240 simultaneously has the welding area in the front-rear direction and the welding area in the left-right direction, thereby improving the structural strength of the mounting bracket body 200 and improving the weakness of poor bearing capacity brought by the mounting bracket body 200. In addition, the outer side of the first connection plate 260 forms an arc edge, avoids a structural abrupt change region, avoids excessive internal stress, and ensures self structural strength.

In some embodiments, referring to fig. 2 and 3, a second connection plate 270 is connected between the second mounting plate and the second extension plate 250, and an outer side of the second connection plate 270 is connected to the second flange 221. The second mounting plate, the second extension plate 250 and the second flange 221 are integrally formed to form a stable integral structure, so that the overall structural strength can be improved.

Based on the same inventive concept, the utility model also provides a vehicle which uses the auxiliary frame mounting bracket structure, so that the auxiliary frame mounting bracket structure has the same beneficial effects as the auxiliary frame mounting bracket structure, the bearing capacity of the mounting bracket body 200 is improved, the stress concentration caused by abrupt change of the structure of the tail end of the welding line is reduced by optimizing the structure of the mounting bracket body 200, and the durability of the welding line is improved while the weight is reduced.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A sub-frame mounting bracket structure, characterized in that it comprises two mounting bracket bodies (200) symmetrically mounted on the left and right sides of the sub-frame (100), the two mounting bracket bodies (200) being respectively used to connect the control arms on the corresponding sides; The lower end of the mounting bracket body (200) is provided with a first extension plate (240) extending forward and a second extension plate (250) extending backward, and the first extension plate (240) and the second extension plate (250) are respectively fixed to the sub-frame (100) along the length direction. 2. A sub-frame mounting bracket structure as claimed in claim 1, characterized in that a front end of the first extension plate (240) is fixed to a connection structure (130) between a frame and a sub-frame (100). 3. A sub-frame mounting bracket structure as described in claim 1 or 2, characterized in that the mounting bracket body (200) includes a first mounting plate body (210) and a second mounting plate body (220), the first mounting plate body (210) and the second mounting plate body (220) are fixed on the sub-frame (100) at intervals along the front-to-back direction, a connecting plate body (230) is provided between the first mounting plate body (210) and the second mounting plate body (220), the connecting plate body (230) is connected to the upper ends of the first mounting plate body (210) and the second mounting plate body (220) and is fixed to the sub-frame (100), the first extension plate (240) is connected to the lower end of the first mounting plate body (210), and the second extension plate (250) is connected to the lower end of the second mounting plate body (220). 4. A sub-frame mounting bracket structure as described in claim 3, characterized in that the first mounting plate body (210) and the connecting plate body (230) are integrally formed, and the second mounting plate body (220) and the connecting plate body (230) are welded and fixed. 5. A sub-frame mounting bracket structure as claimed in claim 3, characterized in that an opening groove (231) is provided on the connecting plate body (230), and the opening direction of the opening groove (231) faces outward. 6. A sub-frame mounting bracket structure as claimed in claim 5, characterized in that the width of the opening slot (231) increases from the inside to the outside. 7. A sub-frame mounting bracket structure as described in claim 3, characterized in that the outer side of the first mounting plate body (210) is provided with a first flange (211) bent forward, and the outer side of the second mounting plate body (220) is provided with a second flange (221) bent backward. 8. A sub-frame mounting bracket structure as described in claim 7, characterized in that a first connecting plate (260) is connected between the first mounting plate and the first extension plate (240), the outer side of the first connecting plate (260) is connected to the first flange (211), and the front end of the first connecting plate (260) is welded to the connecting structure (130) between the frame and the sub-frame (100). 9. A sub-frame mounting bracket structure as described in claim 7, characterized in that a second connecting plate (270) is connected between the second mounting plate and the second extension plate (250), and the outer side of the second connecting plate (270) is connected to the second flange (221). 10. A vehicle, characterized by comprising the sub-frame mounting bracket structure according to any one of claims 1 to 9.