CN219029546U

CN219029546U - Auxiliary frame and vehicle

Info

Publication number: CN219029546U
Application number: CN202320015658.4U
Authority: CN
Inventors: 陈卫琳; 王磊; 郭建宇
Original assignee: Beiqi Foton Motor Co Ltd
Current assignee: Beiqi Foton Motor Co Ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-05-16
Anticipated expiration: 2033-01-04

Abstract

The embodiment of the utility model provides a subframe and a vehicle. This sub vehicle frame is applied to the vehicle, this sub vehicle frame includes left longeron, right longeron, front beam and rear beam interval distribution, and the extending direction of front beam and rear beam are parallel, left longeron is connected with front beam and rear beam respectively, right longeron is connected with front beam and rear beam respectively, the sub vehicle frame still includes left engine suspension support and right engine suspension support, left engine suspension support includes first additional strengthening, right engine suspension support includes second additional strengthening, left engine suspension support is connected with left longeron and rear beam through first additional strengthening, right engine suspension support is connected with right longeron and rear beam through second additional strengthening.

Description

Auxiliary frame and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a subframe and a vehicle.

Background

As the requirements of users on vehicle comfort and operability are higher and higher, the use of independent suspensions is also becoming more popular. The auxiliary frame is a bracket for supporting front and rear axles and suspending, the axles and suspending are connected with the frame through the auxiliary frame, and the auxiliary frame plays roles of guiding, transferring load, adjusting four-wheel positioning parameters, blocking noise, shaking and the like in a suspension system. The auxiliary frame comprises a left engine suspension bracket and a right engine suspension bracket for mounting the engine. When the vehicle runs, the left engine suspension bracket and the right engine suspension bracket can bear larger impact: when the vehicle starts, the engine is pulled by the cargo mass of the vehicle to generate front-back movement, and the engine is arranged on the left engine suspension bracket and the right engine suspension bracket, and the left engine suspension bracket and the right engine suspension bracket are acted by pulling force or pressure; during the running process of the vehicle, the left engine suspension bracket and the right engine suspension bracket are acted by the gravity of the engine and the tensile force generated by the overturning moment of the engine; when the vehicle runs on an uneven road surface or a washboard road surface, the engine can also move, so that the left engine suspension bracket and the right engine suspension bracket bear impact.

In the related art, a left engine suspension bracket and a right engine suspension bracket are connected with a cross beam and a longitudinal beam on an auxiliary frame, but the connection of the left engine suspension bracket and the right engine suspension bracket is not firm enough, and the large impact required to be born by the left engine suspension bracket and the right engine suspension bracket cannot be matched, so that after a vehicle runs for a long time, the left engine suspension bracket and the right engine suspension bracket are easy to generate defects such as cracks, and the auxiliary frame is damaged at the left engine suspension bracket and the right engine suspension bracket.

Disclosure of Invention

The embodiment of the utility model provides an auxiliary frame and a vehicle, which are used for solving the problems that a left engine suspension bracket and a right engine suspension bracket in the related art cannot bear larger impact and are easy to damage.

In order to solve the technical problems, the utility model is realized as follows:

in a first aspect, an embodiment of the present utility model provides an auxiliary frame, applied to a vehicle, where the auxiliary frame includes a left longitudinal beam, a right longitudinal beam, a front cross beam and a rear cross beam, where the front cross beam and the rear cross beam are distributed at intervals, and an extension direction of the front cross beam and an extension direction of the rear cross beam are parallel, the left longitudinal beam is connected with the front cross beam and the rear cross beam respectively, the right longitudinal beam is connected with the front cross beam and the rear cross beam respectively, and the left longitudinal beam and the right longitudinal beam are distributed at intervals;

The auxiliary frame further comprises a left engine suspension support and a right engine suspension support, the left engine suspension support comprises a first reinforcing structure, the right engine suspension support comprises a second reinforcing structure, the left engine suspension support is connected with the left longitudinal beam and the rear cross beam through the first reinforcing structure, and the right engine suspension support is connected with the right longitudinal beam and the rear cross beam through the second reinforcing structure.

Optionally, the first reinforced structure support includes first reinforcing plate, first fixed bolster and first reinforced support, first reinforcing plate with first fixed bolster is connected, first fixed bolster with first reinforced support is connected, first fixed bolster with left side longeron is connected, first reinforced support with the rear end rail is connected, the second reinforced structure includes second reinforcing plate, second fixed bolster and second reinforced support, the second reinforcing plate with the second fixed bolster is connected, the second fixed bolster with the second reinforced support is connected, the second fixed bolster with right side longeron is connected, the second reinforced support with the rear end rail is connected.

Optionally, a first positioning hole is formed in the first reinforcing support, a second positioning hole is formed in the second reinforcing support, the first positioning hole is used for positioning the first reinforcing support when connecting the first reinforcing support with the first fixing support, and the second positioning hole is used for positioning the second reinforcing support when connecting the second reinforcing support with the second fixing support.

Optionally, a first lightening hole is formed in the first fixing support, a second lightening hole is formed in the second fixing support, the left engine suspension support is lightened by the first lightening hole, and the right engine suspension support is lightened by the second lightening hole.

Optionally, the subframe further comprises a left spring shield and a right spring shield, wherein the left spring shield and the right spring shield are both connected to the rear cross beam;

the left spring guard is provided with a third reinforcing plate, the third reinforcing plate is connected with the rear cross beam, the right spring guard is provided with a fourth reinforcing plate, and the fourth reinforcing plate is connected with the rear cross beam.

Optionally, the third reinforcing plate is provided with a first plug welding hole, the fourth reinforcing plate is provided with a second plug welding hole, the third reinforcing plate and the left spring shield are connected through the first plug welding hole in a welding mode, and the fourth reinforcing plate and the right spring shield are connected through the second plug welding hole in a welding mode.

Optionally, the left longitudinal beam and all be provided with first mounting hole and locating pin on the right longitudinal beam, the sub vehicle frame passes through first mounting hole is connected with the frame, the locating pin is used for being in the sub vehicle frame with the frame is connected time fix a position, first mounting hole is the slotted hole, first mounting hole is used for counteracting at least partial welding deformation.

Optionally, the left longitudinal beam and the right longitudinal beam are further provided with second mounting holes, and the second mounting holes are used for positioning the left longitudinal beam or the right longitudinal beam when the left longitudinal beam or the right longitudinal beam is processed.

Optionally, the sub vehicle frame still includes left steering installing support, right steering installing support, left connecting rod, right connecting rod, left connecting rod support and right connecting rod support, the one end of left steering installing support with the front beam is connected, the other end of left steering installing support with the rear beam is connected, the one end of right steering installing support with the front beam is connected, the other end of right steering installing support with the rear beam is connected, just the left steering installing support with right steering installing support interval sets up, the one end of left connecting rod with left connecting rod leg joint, the other end of left connecting rod with the front beam is connected, the one end of right connecting rod with right connecting rod leg joint, the other end of right connecting rod with the front beam is connected.

In a second aspect, an embodiment of the present utility model provides a vehicle, including the subframe of any one of the first aspects, where the subframe is connected to the vehicle through the left side member and the right side member.

In the embodiment of the utility model, the auxiliary frame comprises a left longitudinal beam, a right longitudinal beam, a front cross beam and a rear cross beam, wherein the front cross beam and the rear cross beam are distributed at intervals, the left longitudinal beam is respectively connected with the front cross beam and the rear cross beam, the right longitudinal beam is also respectively connected with the front cross beam and the rear cross beam, and the left longitudinal beam and the longitudinal beams are distributed at intervals, namely, the left longitudinal beam, the right longitudinal beam, the front cross beam and the rear cross beam can form a frame of the auxiliary frame. The auxiliary frame also comprises a left engine suspension bracket and a right engine suspension bracket, wherein the left engine suspension bracket comprises a first reinforcing structure, the left engine suspension bracket is connected with the left longitudinal beam and the rear cross beam through the first reinforcing structure, and the first reinforcing structure is connected with the left longitudinal beam and the rear cross beam, so that the strength of the auxiliary frame at the left engine suspension bracket can be enhanced; the right engine suspension support comprises a second reinforcing structure, the right engine suspension support is connected with the right longitudinal beam and the rear cross beam through the second reinforcing structure, the second reinforcing structure is connected with the right longitudinal beam and the rear cross beam, and the strength of the auxiliary frame at the right engine suspension support can be enhanced.

That is, in the embodiment of the utility model, the left engine suspension bracket is connected with the left longitudinal beam and the rear cross beam through the first reinforcing structure, the right engine suspension bracket is connected with the right longitudinal beam and the rear cross beam through the second reinforcing structure, and the connection strength of the left engine suspension bracket and the right engine suspension bracket of the auxiliary frame can be improved, so that the left engine suspension bracket and the right engine suspension bracket can be matched with larger impact required by the operation of the left engine suspension bracket and the right engine suspension bracket, the left engine suspension bracket and the right engine suspension bracket can meet the use requirement, and the defects that cracks and the like are easy to generate at the left engine suspension bracket and the right engine suspension bracket after a vehicle runs for a long time are avoided, and the auxiliary frame is damaged at the left engine suspension bracket and the right engine suspension bracket.

Drawings

FIG. 1 is a schematic view of an auxiliary frame according to an embodiment of the present utility model;

FIG. 2 is a schematic top view of an auxiliary frame according to an embodiment of the present utility model;

FIG. 3 is a schematic view showing a part of a left engine mount according to an embodiment of the present utility model

FIG. 4 is a schematic view of a left engine mount according to an embodiment of the present utility model;

Fig. 5 shows a schematic view of a portion of a left spring shield according to an embodiment of the present utility model.

Reference numerals:

100: an auxiliary frame; 10: a left longitudinal beam; 20: a right longitudinal beam; 30: a front cross member; 40: a rear cross member; 50: a left engine mount bracket; 60: a right engine mount bracket; 70: a left spring guard; 80: a right spring guard; 90: a left steering mounting bracket; 91: a right steering mounting bracket; 92: a left connecting rod; 93: a right connecting rod; 94: a left connecting rod bracket; 95: a right connecting rod bracket; 11: a first mounting hole; 12: a positioning pin; 13: a second mounting hole; 51: a first reinforcing plate; 52: a first fixing bracket; 53: a first reinforcing bracket; 531: a first positioning hole; 521: a first lightening hole; 522: a third mounting hole; 71: a third reinforcing plate; 72: and a first plug welding hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present utility model. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As shown in fig. 1 to 5, the subframe 100 includes a left side member 10, a right side member 20, a front cross member 30 and a rear cross member 40, the front cross member 30 and the rear cross member 40 are disposed at opposite intervals, the left side member 10 is connected with the front cross member 30 and the rear cross member 40, the right side member 20 is connected with the front cross member 30 and the rear cross member 40, the left side member 10 is disposed at intervals with the right side member 20, the left side member 10 and the right side member 20 are disposed on the front cross member 30 and the rear cross member 40 at intervals, the subframe 100 further includes a left engine mount bracket 50 and a right engine mount bracket 60, the left engine mount bracket 50 includes a first reinforcing structure, the right engine mount bracket 60 includes a second reinforcing structure, the left engine mount bracket 50 is connected with the left side member 10 and the rear cross member 40 through the first reinforcing structure, and the right engine mount bracket 60 is connected with the right side member 20 and the rear cross member 40 through the second reinforcing structure.

In the embodiment of the present utility model, the subframe 100 includes a left side member 10, a right side member 20, a front cross member 30 and a rear cross member 40, the front cross member 30 and the rear cross member 40 are spaced apart, the left side member 10 is connected to the front cross member 30 and the rear cross member 40, the right side member 20 is also connected to the front cross member 30 and the rear cross member 40, and the left side member 10 and the left side member 20 are spaced apart, i.e., the left side member 10, the right side member 20, the front cross member 30 and the rear cross member 40 may form a frame of the subframe 100. The auxiliary frame 100 further comprises a left engine suspension bracket 50 and a right engine suspension bracket 60, wherein the left engine suspension bracket 50 comprises a first reinforcing structure, the left engine suspension bracket 50 is connected with the left longitudinal beam 10 and the rear cross beam 40 through the first reinforcing structure, and the first reinforcing structure is connected with the left longitudinal beam 10 and the rear cross beam 40, so that the strength of the auxiliary frame 100 at the left engine suspension bracket 50 can be enhanced; the right engine mount bracket 60 includes a second reinforcing structure, and the right engine mount bracket 60 is connected with the right side member 20 and the rear cross member 40 through the second reinforcing structure, and the second reinforcing structure is connected with the right side member 20 and the rear cross member 40, so that the strength of the subframe 100 at the right engine mount bracket 60 can be enhanced.

That is, in the embodiment of the present utility model, the left engine suspension bracket 50 is connected with the left longitudinal beam 10 and the rear cross beam 40 through the first reinforcing structure, the right engine suspension bracket 60 is connected with the right longitudinal beam 20 and the rear cross beam 40 through the second reinforcing structure, so that the connection strength of the left engine suspension bracket 50 and the right engine suspension bracket 60 of the subframe 100 can be improved, so that the left engine suspension bracket 50 and the right engine suspension bracket 60 can be matched with larger impact required by the operation of the left engine suspension bracket 50 and the right engine suspension bracket 60, the left engine suspension bracket 50 and the right engine suspension bracket 60 can meet the use requirement, and the defects that cracks and the like are easy to occur at the left engine suspension bracket and the right engine suspension bracket after the vehicle runs for a long time are avoided, and the subframe is damaged at the left engine suspension bracket and the right engine suspension bracket can be avoided.

It should be noted that, the extending direction of the front beam 30 and the extending direction of the rear beam 40 may be parallel, or the extending direction of the front beam 30 and the extending direction of the rear beam 40 may be non-parallel, which is not particularly limited in this embodiment of the present utility model.

In addition, the width of the subframe 100 is matched with the vehicle type, and the width of the subframe 100 is the distance between the left side member 10 and the right side member 20, that is, the subframe 100 may be used for different vehicle types according to the width of the subframe 100. In particular, when the distance between the left side member 10 and the right side member 20 is in the range of 755 to 765 mm, that is, the width of the subframe 100 is in the range of 755 to 765 mm, the subframe 100 of this range can be matched to a specific wide vehicle model so that the subframe 100 can be applied to a specific vehicle model to support the front and rear axles, suspension. That is, the subframe 100 provided in the embodiment of the present utility model may be matched with a wider specific vehicle model, in this case, the distance between the left side member 10 and the right side member 20 is larger, and the rigidity of the subframe 100 may be improved to some extent.

It should be further noted that the distance between the left side member 10 and the right side member 20 may be 757 to 763 mm, that is, the width of the subframe 100 may be 757 to 763 mm, and the subframe 100 in this width range may be better matched to a specific wider vehicle type. The distance between the left side rail 10 and the right side rail 20 may be 759 mm, 760 mm, 761 mm, 762 mm, etc. For ease of manufacturing and assembly, so that the subframe 100 meets the interchangeability or mating requirements, a distance of 760 mm between the left and

right side rails

10, 20 may be provided with a tolerance of + -3 mm.

In addition, in some embodiments, as shown in fig. 1 and 2, the first reinforcement structure includes a first reinforcement plate 51, a first fixing bracket 52, and a first reinforcement bracket 53, the first reinforcement plate 51 is connected with the first fixing bracket 52, the first fixing bracket 52 is connected with the first reinforcement bracket 53, the first fixing bracket 52 is connected with the left side member 10, the first reinforcement bracket 53 is connected with the rear cross member 40, the second reinforcement structure includes a second reinforcement plate, a second fixing bracket, and a second reinforcement bracket, the second reinforcement plate is connected with the second fixing bracket, the second fixing bracket is connected with the right side member 20, and the second reinforcement bracket is connected with the rear cross member 40. As shown in fig. 3 and 4, a partial schematic view of the left engine mount bracket 50 and a schematic view of the left engine mount bracket 50 are shown; a partial schematic view at the right engine mount bracket 60, and a schematic view of the right engine mount bracket 60 can be referred to fig. 3, 4.

The first reinforcing structure comprises a first reinforcing plate 51, a first fixing support 52 and a first reinforcing support 53, wherein the first reinforcing plate 51 is connected with the first fixing support 52, so that the first reinforcing plate 51 can play a role in reinforcing the first fixing support 52, the first reinforcing plate 51 is located on a non-contact surface of the first fixing support 52, the first reinforcing plate 51 can serve as a reinforcing rib of the first fixing support 52, the strength of the left engine suspension support 50 is locally increased on the first reinforcing plate 51, and the strength of the first fixing support 52 is reinforced.

The first reinforcing bracket 53 is connected with the first fixing bracket 52, so that the left engine suspension bracket 50 can be connected to the rear cross member 40 through the first reinforcing bracket 53, the first fixing bracket 52 is connected with the left longitudinal member 10, so that the left engine suspension bracket 50 can be connected to the left longitudinal member 10, the left engine suspension bracket 50 is connected to the left longitudinal member 10 and the rear cross member 40 through the first reinforcing bracket 53 and the first fixing bracket 52, the connection strength between the left engine suspension bracket 50 and the left longitudinal member 10 and the rear cross member 40 can be improved, in addition, the strength of the left engine suspension bracket 50 can be increased through the first reinforcing plate 51, so that the strength of the subframe 100 at the left engine suspension bracket 50 is improved, and the left engine suspension bracket 50 can meet the use requirement.

The second connection structure includes second reinforcing plate, second fixed bolster and second reinforcing bracket, second reinforcing plate and second fixed bolster are connected to the second reinforcing plate can play the effect of strengthening to the second fixed bolster, and the second reinforcing plate is located the non-contact surface of second fixed bolster, and the reinforcing rib of second fixed bolster can be regarded as to the second reinforcing plate, increases the intensity of right engine suspension support 60 in the part of second reinforcing plate, strengthens the intensity of second fixed bolster.

The second reinforcing bracket is connected with the second fixing bracket, so that the right engine suspension bracket 60 can be connected onto the rear cross beam 40 through the second reinforcing bracket, the second fixing bracket is connected with the right longitudinal beam 20, so that the right engine suspension bracket 50 can be connected onto the right longitudinal beam 20, the right engine suspension bracket 60 is connected onto the right longitudinal beam 20 and the rear cross beam 40 through the second reinforcing bracket and the second fixing bracket, the connection strength between the right engine suspension bracket 60 and the right longitudinal beam 20 and between the right engine suspension bracket and the rear cross beam 40 can be improved, in addition, the second reinforcing plate can also increase the strength of the right engine suspension bracket 60, so that the strength of the auxiliary frame 100 at the position of the right engine suspension bracket 60 is improved, and the right left engine suspension bracket 50 can meet the use requirement.

It should be noted that the first fixing bracket 52 includes a first side and a second side opposite to each other, the first reinforcing plate 51 is connected to the first side of the first fixing bracket 52, and the first reinforcing bracket 53 is connected to the second side of the first fixing bracket 52. The first reinforcing bracket 53 is used for being connected with the rear cross member 40, and compared with the case that the rear cross member 40 is directly connected through the first fixing bracket 52, the first reinforcing bracket 53 can increase the contact area between the left engine mount bracket 50 and the rear cross member 40, thereby improving the connection strength between the left engine mount bracket 50 and the rear cross member 40.

Further, the shape of the first reinforcing bracket 53 may be set according to the shape of the rear cross member 40, for example, the shape of the rear cross member 40 may be rectangular, then the first reinforcing bracket 53 may be a connection plate having a bent structure, and the angle at the bent structure is 90 °, so that the first reinforcing bracket 53 may be connected to two adjacent sides of the rectangular shape of the rear cross member 40, so that the contact area between the first reinforcing bracket 53 and the rear cross member 40 is larger, for example, the shape of the rear cross member 40 may be rectangular with four corners being rounded corners, then the first reinforcing bracket 53 may be a connection plate having a bent structure, and the bent structure is rounded, so that the connection between the first reinforcing bracket 53 and the rear cross member 40 is matched, so that the contact area between the first reinforcing bracket 53 and the rear cross member 40 is larger, and so that the strength of the sub-frame 100 at the left engine suspension bracket 50 is better. Of course, the second reinforcing bracket may be provided according to the shape of the rear cross member 40, so that the sub-frame 100 has a better strength at the right engine mount bracket 60.

It should be further noted that, at the left engine mount bracket 50, in order to make the first reinforcing bracket 53 better improve the strength of the left engine mount bracket 50, the contact area between the first reinforcing bracket 53 and the rear cross member 40 is larger, which can make the connection strength between the left engine mount bracket 50 and the rear cross member 40 better, and in addition, the connection strength of the engine mount bracket at the first reinforcing bracket 53 also affects the strength of the left engine mount bracket 50, that is, the connection strength between the first reinforcing bracket 53 and the first fixing bracket 52 also affects the strength of the subframe 100, so that more connection portions between the first fixing bracket 52 and the first reinforcing bracket 53 are required in order to ensure the connection strength between the first reinforcing bracket 53 and the first fixing bracket 52. Also, at the right engine mount bracket 60, the connection portion of the second fixing bracket and the second reinforcing bracket is more required.

The left engine mount bracket 50 and the right engine mount bracket 60 may be provided with a plurality of third mounting holes 522, and the engine may be fixed through the third mounting holes 522, and as shown in fig. 4, fixing members, such as bolts, screws, etc., may be provided in the third mounting holes 522 and the holes in the engine case to fix the engine.

In addition, in some embodiments, as shown in fig. 4, a first positioning hole 531 may be provided on the first reinforcing bracket 53, and a second positioning hole may be provided on the second reinforcing bracket, the first positioning hole 531 being used to position the first reinforcing bracket 53 when connecting the first reinforcing bracket 53 and the first fixing bracket 52, and the second positioning hole being used to position the second reinforcing bracket when connecting the second reinforcing bracket and the second fixing bracket.

The first reinforcing support 53 is provided with a first positioning hole 531, the first positioning hole 531 can be used for positioning when connecting the first reinforcing support 53 and the first fixing support 52, the relative position relationship between the first reinforcing support 53 and the first fixing support 52 is ensured, and the first reinforcing support 53 and the first fixing support 52 can be connected after being positioned by the first positioning hole 531. The second reinforcing support is provided with a second positioning hole, the second positioning hole can be used for positioning when the second reinforcing support and the second fixing support are connected, so that the relative position relationship between the second reinforcing support and the second fixing support is guaranteed, and the second reinforcing support and the second fixing support can be connected after the second reinforcing support and the second fixing support are positioned through the second positioning hole.

It should be noted that, the first reinforcing bracket 53 and the first fixing bracket 52 may be connected by welding, and the first positioning hole 531 is used as a welding positioning hole, and is positioned when the first reinforcing bracket 53 and the first fixing bracket 52 are welded; the second reinforcing support and the second fixing support can be connected in a welding mode, the second positioning holes are used as welding positioning holes, and positioning is performed when the second reinforcing support and the second fixing support are welded. Of course, the first reinforcing bracket 53 and the rear cross member 40 may be connected by gluing, screwing, snap-in, expansion-in, or the like, and the second reinforcing bracket and the rear cross member 40 may be connected by gluing, screwing, snap-in, expansion-in, or the like. The connection manner between the first reinforcing bracket 53 and the rear cross member 40, and between the second reinforcing bracket and the rear cross member 40 is not limited in this embodiment.

It should be noted that a tool may be additionally provided, and the first reinforcing bracket 53 and the first fixing bracket 52, and the second reinforcing bracket and the second fixing bracket may be connected by the tool. The fixture is provided with a fixed pin, when the first fixed bracket 52 and the first reinforced bracket 53 are connected, the first positioning hole 531 can be aligned with the fixed pin to position the first reinforced bracket 53, and then the first reinforced bracket 53 and the first fixed bracket 52 are connected; when the second fixing support and the second reinforcing support are connected, the second positioning holes can be aligned with the fixing pins, the second reinforcing support is positioned, and then the second reinforcing support and the second fixing support are connected.

Additionally, in some embodiments, as shown in FIG. 4, a first lightening hole 521 may be provided in the first stationary bracket 52 and a second lightening hole may be provided in the second stationary bracket, the first lightening hole 521 lightening the left engine mount bracket 50 and the second lightening hole lightening the right engine mount bracket 60.

The first fixing bracket 52 is provided with the first lightening hole 521, the second fixing bracket is provided with the second lightening hole, and the first lightening hole 521 and the second lightening hole can lighten the first fixing bracket 52 and the second fixing bracket, so that the left engine suspension bracket 50 and the right engine suspension bracket 60 are lighter in weight.

It should be noted that, the first lightening hole 521 may be a circle, an ellipse, a giant rectangle, a polygon, etc., and the second lightening hole may be a circle, an ellipse, a rectangle, a polygon, etc., and the specific shape of the first lightening hole 521 and the second lightening hole is not particularly limited in the embodiments of the present utility model.

In addition, in some embodiments, as shown in fig. 1, 2, and 5, the subframe 100 may further include a left spring guard 70 and a right spring guard 80, where the left spring guard 70 and the right spring guard 80 are connected to the rear cross member 40; the left spring cover 70 is provided with a third reinforcing plate 71, the left spring cover 70 and the third reinforcing plate 71 are connected with the rear cross beam 40, the right spring cover 80 is provided with a fourth reinforcing plate, and the right spring cover 80 and the fourth reinforcing plate are connected with the rear cross beam 40.

The subframe 100 also includes a left spring guard 70 and a right spring guard 80, both of which are connected at the rear cross member 40, the left spring guard 70 and the right spring guard 80. Since the third reinforcing plate 71 is provided on the left spring cover 70 and the fourth reinforcing plate is provided on the right spring cover 80, when the left spring cover 70 is mounted, the left spring cover 70 can be connected to the rear cross member 40, and then the third reinforcing plate 71 and the rear cross member 40 are connected, and the connection between the left spring cover 70 and the rear cross member 40 is reinforced by the third reinforcing plate 71; when the right spring cover 80 is mounted, the right spring cover 80 may be connected to the rear cross member 40, and then connected to the fourth reinforcing plate and the rear cross member 40, so that the connection between the right spring cover 80 and the rear cross member 40 is reinforced by the fourth reinforcing plate. That is, the third reinforcing plate 71 is provided to enhance the connection strength between the left spring cover 70 and the rear cross member 40, and the fourth reinforcing plate is provided to enhance the connection strength between the right spring cover 80 and the rear cross member 40.

The automotive suspension spring is an elastic element in an automotive suspension, and elastically links an axle with a frame or a vehicle body, and receives and transmits a vertical load, thereby relieving and suppressing an impact caused by an uneven road surface. The spring shield is a protective structure of the suspension spring in the vehicle, and is used for protecting the suspension spring, preventing the impact of the road surface bouncing stones on the spiral spring, avoiding the corrosion caused by directly polluting the suspension spring with mud and water, and the like. The left spring guard 70 and the right spring guard 80 are relatively heavy components of the subframe 100 that require substantial rigidity and strength. In the embodiment of the present utility model, the width of the subframe 100 is increased, that is, the distance between the left side member 10 and the right side member 20 is larger, so that the lengths of the front cross member 30 and the rear cross member 40 can be increased, and then the left side member 10 and the right side member 20 are disposed on the front cross member 30 and the rear cross member 40, so that the distance between the left side member 10 and the right side member 20 is increased. Since the length of the rear cross member 40 increases, the connection strength of the left and right spring shields 70 and 80 connected to the rear cross member 40 decreases, and the connection strength between the left and right spring shields 70 and 80 and the rear cross member 40 can be satisfied by providing the third reinforcing plate 71 on the left spring shield 70 and the fourth reinforcing plate on the right spring shield 80 to reinforce the connection strength of the left and right spring shields 70 and 80 and the rear cross member 40.

The left spring cover 70 and the right spring cover 80 may be further provided with openings for weight reduction, so that the weight of the left spring cover 70 and the right spring cover 80 is reduced, and the weight of the subframe 100 is reduced.

Additionally, in some embodiments, a first plug weld hole 72 may be provided in the third reinforcing plate 71, a second plug weld hole may be provided in the fourth reinforcing plate, the third reinforcing plate 71 is welded to the left spring guard 70 via the first plug weld hole 72, and the fourth reinforcing plate is welded to the right spring guard 80 via the second plug weld hole. As shown in fig. 5, a partial schematic view of the left spring guard 70 and a partial schematic view of the right spring guard 80 may refer to fig. 5.

The third reinforcing plate 71 is connected with the left spring shield 70, the fourth reinforcing plate is connected with the right spring shield 80, the third reinforcing plate 71 is provided with a first plug welding hole 72, and the fourth reinforcing plate is provided with a second plug welding hole, so that the third reinforcing plate 71 and the left spring shield 70 can be welded and connected through the first plug welding hole 72, the fourth reinforcing plate and the right spring shield 80 can be welded and connected through the second plug welding hole, the connection between the third reinforcing plate 71 and the left spring shield 70 is realized, and the fourth reinforcing plate and the right spring shield 80 are connected.

That is, the third reinforcing plate 71 and the left spring cover 70 may be connected by plug welding, and the third reinforcing plate 71 is disposed on one surface of the left spring cover 70, that is, the third reinforcing plate 71 is overlapped on the left spring cover 70, and the welding material may be filled between the third reinforcing plate 71 and the left spring cover 70 through the first plug welding hole 72, so as to realize the connection of the third reinforcing plate 71 and the left spring cover 70. The fourth reinforcing plate and the right spring cover 80 may also be connected by plug welding, and the fourth reinforcing plate is disposed on one surface of the right spring cover 80, that is, the fourth reinforcing plate is overlapped on the right spring cover 80, and a welding material may be filled between the fourth reinforcing plate and the right spring cover 80 through the second plug welding hole, so as to facilitate connection between the fourth reinforcing plate and the right spring cover 80.

In addition, in some embodiments, as shown in fig. 2, the left side member 10 and the right side member 20 may be provided with a first mounting hole 11 and a positioning pin 12, where the subframe 100 is connected to the frame through the first mounting hole 11, the positioning pin 12 is used to position the subframe 100 when the subframe 100 is connected to the frame, the first mounting hole 11 is an oblong hole, and the first mounting hole 11 is used to offset a deformation tolerance caused by welding deformation.

The left side member 10 and the right side member 20 are provided with a first mounting hole 11 and a positioning pin 12, and the sub-frame 100 and the frame can be connected through the first mounting hole 11 and the positioning pin 12. When the subframe 100 is connected with the frame, the positioning pins 12 are aligned with the positioning holes on the frame to perform positioning when the subframe 100 is connected with the frame. After positioning, the left side member 10 and the frame, and the right side member 20 and the frame can be connected through the first mounting hole 11, so as to realize the connection of the sub-frame 100 and the frame.

It should be noted that, the assembly tolerance of the oblong hole is larger than that of the round hole, and the first mounting hole 11 adopts the form of the oblong hole, so that the mounting can be performed through the oblong hole after the welding. For example, the assembly tolerance of the round hole is ±1 mm, the assembly tolerance of the oblong hole is ±3 mm, and when the subframe 100 is welded, the left side member 10 and the right side member 20 may be deformed by welding, resulting in deformation of the first mounting hole 11. When the deformation of the left longitudinal beam 10 and the right longitudinal beam 20 is 2 mm, the deformation is outside the assembly tolerance of the round hole, so that the round hole does not meet the assembly requirement, but the deformation falls within the assembly tolerance zone of the oblong hole, so that the oblong hole still meets the assembly requirement, and the deformation tolerance brought by welding deformation can be counteracted by the oblong hole-shaped first mounting hole 11, so that the auxiliary frame 100 is convenient to mount on the frame.

It should be noted that, the subframe 100 and the frame may be connected by a threaded connection, specifically, the subframe 100 may be connected to the lower wing surface of the frame by a threaded connection, and a bolt may be disposed in the first mounting hole 11, so that the subframe 100 and the lower wing surface of the frame may be connected by the bolt.

In addition, in some embodiments, as shown in fig. 2, a second mounting hole 13 may be further provided on the left side member 10 and the right side member 20, and the second mounting hole 13 is used to position the left side member 10 or the right side member 20 when the left side member 10 or the right side member 20 is processed.

The left longitudinal beam 10 and the right longitudinal beam 20 are further provided with second mounting holes 13, the second mounting holes 13 can be used as positioning holes in processing, namely, the second mounting holes 13 on the left longitudinal beam 10 can position the left longitudinal beam 10 in processing the left longitudinal beam 10, so that the left longitudinal beam 10 can be processed conveniently, namely, the second mounting holes 13 on the right longitudinal beam 20 can position the right longitudinal beam 20 in processing the right longitudinal beam 20, so that the right longitudinal beam 20 can be processed conveniently.

It should be noted that, the second mounting hole 13 may be a circular hole, the circular hole and the surface provided with the circular hole may limit displacement in three directions of the X direction, the Y direction, and the Z direction, that is, the second mounting hole 13 of the circular hole may ensure that the positioning can be performed in all three directions when the left longitudinal beam 10 or the right longitudinal beam 20 is processed, and ensure positioning accuracy. The X direction is the direction from the front cross member 30 to the rear cross member 40, the Y direction is the direction from the left side member 10 to the right side member 20, and the Z direction is the direction perpendicular to both the X direction and the Y direction. When the left side member 10 and the right side member 20 are processed, the rotation of the left side member 10 and the right side member 20 along the axial direction of the second mounting hole 13 is limited, and at this time, the first mounting hole 11 in the shape of a slotted hole can be used for positioning, so that the positioning of one surface and two holes is realized, and the processing of the left side member 10 and the right side member 20 is facilitated.

In addition, in some embodiments, as shown in fig. 1 and 2, the subframe 100 may further include a left steering mounting bracket 90, a right steering mounting bracket 91, a left connecting rod 92, a right connecting rod 93, a left connecting rod bracket 94, and a right connecting rod bracket 95, one end of the left steering mounting bracket 90 is connected with the front cross member 30, the other end of the left steering bracket is connected with the rear cross member 40, one end of the right steering mounting bracket 91 is connected with the front cross member 30, the other end of the right steering mounting bracket 91 is connected with the rear cross member 40, and the left steering mounting bracket 90 is disposed at an interval with the right steering mounting bracket 91, one end of the left connecting rod 92 is connected with the left connecting rod bracket 94, the other end of the left connecting rod 92 is connected with the front cross member 30, one end of the right connecting rod 93 is connected with the right connecting rod bracket 95, and the other end of the right connecting rod 93 is connected with the front cross member 30.

The subframe 100 further includes a left steering mounting bracket 90 and a right steering mounting bracket 91, the left steering mounting bracket 90 and the right steering mounting bracket 91 are both disposed between the front cross member 30 and the rear cross member 40, and the left steering mounting bracket 90 and the right steering mounting bracket 91 are disposed at intervals. The left steering mounting bracket 90 and the right steering mounting bracket 91 are used to connect the steering gear, which is fixed to the sub-frame 100 so that the steering gear can perform its function.

The auxiliary frame 100 still includes left connecting rod 92, right connecting rod 93, left connecting rod support 94 and right connecting rod support 95, left connecting rod support 94, right connecting rod support 95 is fixed with the frame connection, the one end of left connecting rod 92 is connected with left connecting rod support 94, the other end of left connecting rod 92 is connected with front cross beam 30, the one end of right connecting rod 93 is connected with right connecting rod support 95, the other end of right connecting rod 93 is connected with front cross beam 30, left connecting rod 92 links up front cross beam 30 and left connecting rod support 94 promptly, realize supporting, the stabilization to left connecting rod support 94, right connecting rod 93 links up front cross beam 30 and right connecting rod support 95, realize supporting, the stabilization to right connecting rod support 95.

An embodiment of the present utility model provides a vehicle including the sub-frame 100 of any of the above embodiments, the sub-frame 100 being connected to the vehicle by the left side member 10 and the right side member 20.

The subframe 100 includes a left side member 10, a right side member 20, a front cross member 30, and a rear cross member 40, the left side member 10 and the right side member 20 being connected to the front cross member 30 and the rear cross member 40, the left side member 10, the right side member 20 being adapted to be connected to a vehicle, and in particular, the left side member 10, the right side member 20 being adapted to be connected to a frame in the vehicle for application of the subframe 100 to the vehicle.

It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

While alternative embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the scope of the embodiments of the utility model.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude that an additional identical element is present in an article or terminal device comprising the element.

While the foregoing has been described in some detail by way of illustration of the principles and embodiments of the utility model, and while in accordance with the principles and implementations of the utility model, those skilled in the art will readily recognize that the utility model is not limited thereto.

Claims

1. The auxiliary frame (100) is applied to a vehicle, and is characterized in that the auxiliary frame (100) comprises a left longitudinal beam (10), a right longitudinal beam (20), a front transverse beam (30) and a rear transverse beam (40), wherein the front transverse beam (30) and the rear transverse beam (40) are distributed at intervals, the left longitudinal beam (10) is respectively connected with the front transverse beam (30) and the rear transverse beam (40), the right longitudinal beam (20) is respectively connected with the front transverse beam (30) and the rear transverse beam (40), and the left longitudinal beam (10) and the right longitudinal beam (20) are distributed at intervals;

the auxiliary frame (100) further comprises a left engine suspension bracket (50) and a right engine suspension bracket (60), the left engine suspension bracket (50) comprises a first reinforcing structure, the right engine suspension bracket (60) comprises a second reinforcing structure, the left engine suspension bracket (50) is connected with the left longitudinal beam (10) and the rear cross beam (40) through the first reinforcing structure, and the right engine suspension bracket (60) is connected with the right longitudinal beam (20) and the rear cross beam (40) through the second reinforcing structure.

2. The subframe (100) according to claim 1, wherein the first reinforcement structure comprises a first reinforcement plate (51), a first fixing bracket (52) and a first reinforcement bracket (53), the first reinforcement plate (51) is connected with the first fixing bracket (52), the first fixing bracket (52) is connected with the first reinforcement bracket (53), the first fixing bracket (52) is connected with the left side rail (10), the first reinforcement bracket (53) is connected with the rear cross member (40), the second reinforcement structure comprises a second reinforcement plate, a second fixing bracket and a second reinforcement bracket, the second reinforcement plate is connected with the second fixing bracket, the second fixing bracket is connected with the second reinforcement bracket, the second fixing bracket is connected with the right side rail (20), and the second reinforcement bracket is connected with the rear cross member (40).

3. The subframe (100) according to claim 2, wherein the first reinforcing bracket (53) is provided with a first positioning hole (531), the second reinforcing bracket is provided with a second positioning hole, the first positioning hole (531) is used for positioning the first reinforcing bracket (53) when connecting the first reinforcing bracket (53) and the first fixing bracket (52), and the second positioning hole is used for positioning the second reinforcing bracket when connecting the second reinforcing bracket and the second fixing bracket.

4. The subframe (100) according to claim 2, wherein the first fixed bracket (52) is provided with a first lightening hole (521), the second fixed bracket is provided with a second lightening hole, the first lightening hole (521) lightens the left engine mount (50) and the second lightening hole lightens the right engine mount (60).

5. The subframe (100) of claim 1, wherein the subframe (100) further comprises a left spring guard (70) and a right spring guard (80), the left spring guard (70) and the right spring guard (80) being both connected to the rear cross member (40);

the left spring protection cover (70) is provided with a third reinforcing plate (71), the left spring protection cover (70) and the third reinforcing plate (71) are connected with the rear cross beam (40), the right spring protection cover (80) is provided with a fourth reinforcing plate, and the right spring protection cover (80) and the fourth reinforcing plate are connected with the rear cross beam (40).

6. The subframe (100) according to claim 5, wherein a first plug welding hole (72) is provided in the third reinforcement plate (71), a second plug welding hole is provided in the fourth reinforcement plate, the third reinforcement plate (71) and the left spring shield (70) are welded together through the first plug welding hole (72), and the fourth reinforcement plate and the right spring shield (80) are welded together through the second plug welding hole.

7. The auxiliary frame (100) according to claim 1, wherein the left longitudinal beam (10) and the right longitudinal beam (20) are respectively provided with a first mounting hole (11) and a positioning pin (12), the auxiliary frame (100) is connected with the frame through the first mounting holes (11), the positioning pins (12) are used for positioning when the auxiliary frame (100) is connected with the frame, the first mounting holes (11) are oblong holes, and the first mounting holes (11) are used for counteracting deformation tolerance caused by welding deformation.

8. The subframe (100) according to claim 7, wherein the left side member (10) and the right side member (20) are further provided with a second mounting hole (13), the second mounting hole (13) being used for positioning the left side member (10) or the right side member (20) when machining the left side member (10) or the right side member (20).

9. The subframe (100) according to any one of claims 1-8, wherein the subframe (100) further comprises a left steering mounting bracket (90), a right steering mounting bracket (91), a left connecting rod (92), a right connecting rod (93), a left connecting rod bracket (94) and a right connecting rod bracket (95), one end of the left steering mounting bracket (90) is connected with the front cross beam (30), the other end of the left steering mounting bracket (90) is connected with the rear cross beam (40), one end of the right steering mounting bracket (91) is connected with the front cross beam (30), the other end of the right steering mounting bracket (91) is connected with the rear cross beam (40), and the left steering mounting bracket (90) is arranged at intervals with the right steering mounting bracket (91), one end of the left connecting rod (92) is connected with the left connecting rod bracket (94), the other end of the left connecting rod (92) is connected with the front cross beam (30), one end of the right connecting rod (93) is connected with the right connecting rod bracket (95), and the other end of the right connecting rod (93) is connected with the front cross beam (30).

10. A vehicle, characterized in that it comprises a subframe (100) according to any one of claims 1-9;

the subframe (100) is connected to the vehicle via the left side rail (10) and the right side rail (20).