CN220220898U - Auxiliary frame cross beam, auxiliary frame and vehicle - Google Patents

Abstract

The utility model discloses a sub-frame cross beam, a sub-frame and a vehicle, wherein the sub-frame cross beam comprises: the main body beam part is transversely extended; the installation beam portion, the installation beam portion set up in one side of main part beam portion and extend in horizontal setting, the installation beam portion is used for installing motor reducer, main part beam portion with the installation beam portion is connected fixedly and the junction surface is the arch setting in horizontal. From this, through setting up the junction surface of main part beam part and installation beam part into the arch in horizontal, not only can promote sub vehicle frame crossbeam's structural stability and reliability, but also can reduce the noise that motor reducer vibration produced, and then can promote the driving experience of driver to the vehicle.

Description

Auxiliary frame cross beam, auxiliary frame and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to an auxiliary frame cross beam, an auxiliary frame and a vehicle.

Background

With the continuous improvement of the living standard of people, vehicles do not only meet the requirements of mobility aids, the requirements of people on the quality of automobiles are continuously improved, and the noise vibration performance of the vehicles becomes the key point of competition of each vehicle enterprise. The motor reducer assembly produces vibration and transmits to the automobile body through its and back sub vehicle frame mounting point, and then arouses whole car vibration noise problem, how to promote back sub vehicle frame mounting point position intensity, reduce motor reducer assembly and transmit to whole car vibration noise through it, be the NVH control important item of vehicle.

In the related art, the motor reducer and the rear auxiliary frame mounting point cross beam are not subjected to overall structure layout, so that the overall structure of the frame at the position where the motor reducer is mounted is weaker, the shape structural strength is not fully utilized to improve the self strength, the vibration response sensitivity is reduced, the structure of the vehicle is unstable, the noise is large, and the driving experience of a user is lower.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a subframe cross member which has high structural strength and good vibration damping effect.

The utility model further provides a subframe.

The utility model further proposes a vehicle.

A sub-frame rail according to an embodiment of the utility model comprises: the main body beam part is transversely extended; the installation beam portion, the installation beam portion set up in one side of main part beam portion and extend in horizontal setting, the installation beam portion is used for installing motor reducer, main part beam portion with the installation beam portion is connected fixedly and the junction surface is the arch setting in horizontal.

Therefore, the connecting surface of the main body beam part and the mounting beam part is transversely arched, so that the connecting strength of the main body beam part and the mounting beam part can be improved, the structural stability and the reliability of the auxiliary frame beam can be improved, the absorption and buffering effects of the auxiliary frame beam on vibration generated by the motor reducer can be improved, the vibration noise generated by the motor reducer can be reduced, and the driving experience of drivers and passengers on vehicles can be improved.

In some examples of the utility model, the body beam portion and the mounting beam portion are each C-shaped in cross section, the body beam portion and the mounting beam portion together forming a stiffening cavity.

In some examples of the present utility model, the mounting beam portion is provided with a suspension mounting bracket, a middle portion of one side of the mounting beam portion away from the main body beam portion is provided with a reinforcing concave portion, the reinforcing concave portion is arranged in a transversely extending manner, the suspension mounting bracket is arranged in the reinforcing concave portion, and a projection of the reinforcing concave portion on a transversely extending vertical plane is in a spinning pendant shape and a projection of the reinforcing concave portion on a longitudinally extending vertical plane is in an arch shape.

In some examples of the present utility model, two suspension mounting brackets are disposed on the mounting beam portion at a lateral interval, the suspension mounting brackets include a bracket body and a flange, the flange is disposed on a side of the two bracket bodies away from each other, the flange includes a first flange portion and a second flange portion, and the first flange portion and the second flange portion are respectively located at two longitudinal ends of the bracket body and have different shapes.

In some examples of the present utility model, one of the first flange portion and the second flange portion is S-shaped, the other is triangular, and a connection portion of the bracket main body and the mounting beam portion is arched.

In some examples of the utility model, the suspension mounting bracket has a length L1 in the longitudinal direction, L1 satisfying the relationship: and the distance between the two suspension mounting brackets in the transverse direction is L2, wherein L1 is more than or equal to 105mm and less than or equal to 115mm, and L2 satisfies the relation: l2 is more than or equal to 95mm and less than or equal to 105mm.

In some examples of the present utility model, a first reinforcing protrusion extending transversely is disposed at a middle portion of the main body beam portion, a projection of the first reinforcing protrusion on a transversely extending vertical plane is elliptical and a projection of the first reinforcing protrusion on a longitudinally extending vertical plane is arched, and second reinforcing protrusions are disposed at two transverse ends of the first reinforcing protrusion, and the second reinforcing protrusion is circular and is provided with a weight-reducing hole.

In some examples of the utility model, the main body beam portion is provided with an extension reinforcing portion which is triangular and is used for being connected with the longitudinal beam of the auxiliary frame, and the connection part of the extension reinforcing portion and the longitudinal beam of the auxiliary frame is arched.

According to an embodiment of the utility model, a subframe includes: the sub-frame rail described above; the longitudinal beams are two, the two longitudinal beams are respectively arranged at the two transverse ends of the auxiliary frame cross beam, the longitudinal beams are longitudinally extended and provided with third reinforcing protrusions, and the third reinforcing protrusions are connected with the auxiliary frame cross beam.

In some examples of the present utility model, the subframe further includes a reinforcing plate, the reinforcing plate includes a main plate portion and two connection portions, the main plate portion is in a flat plate shape, the two connection portions are both disposed on the main plate portion, one of the two connection portions is connected to the mounting beam portion, the other is connected to the side member, and the two connection portions are both in a triangle shape.

According to an embodiment of the present utility model, a vehicle includes: the subframe described above.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

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

FIG. 2 is a cross-sectional view of a subframe according to an embodiment of the utility model;

FIG. 3 is a partial schematic view of a subframe according to an embodiment of the utility model;

FIG. 4 is a partial schematic view of a subframe according to an embodiment of the utility model;

FIG. 5 is a partial schematic view of a subframe according to an embodiment of the utility model;

FIG. 6 is a partial schematic view of a subframe according to an embodiment of the utility model;

fig. 7 is a partial schematic view of a subframe according to an embodiment of the utility model.

Reference numerals:

1000. an auxiliary frame;

100. a subframe cross member;

10. a main body beam portion; 11. a first reinforcing protrusion; 12. a second reinforcing protrusion; 121. a lightening hole; 13. an external expansion reinforcing part;

20. mounting a beam part; 21. reinforcing the concave portion; 22. a reinforcing plate; 221. a main board part, 222, and a connection part; 23. a reinforcing cavity;

30. a suspension mounting bracket; 31. a holder main body; 32. flanging; 321. a first burring part; 322. a second burring part;

200. a longitudinal beam; 201. and a third reinforcing protrusion.

Detailed Description

Embodiments of the present utility model will be described in detail below, by way of example with reference to the accompanying drawings.

Referring now to fig. 1-7, a subframe rail 100 according to an embodiment of the present utility model is described, wherein subframe rail 100 may be used with subframe 1000, and subframe 1000 may be used with a vehicle.

As shown in connection with fig. 1,3, 6 and 7, a subframe rail 100 according to the present utility model may mainly include: the main body beam part 10 and the installation beam part 20, main body beam part 10 transversely extends the setting, and the installation beam part 20 sets up in the rear side of main body beam part 10 to the installation beam part 20 transversely extends the setting, and installation beam part 20 is used for installing the motor reducer of vehicle, and main body beam part 10 and installation beam part 20 are connected fixedly, and the junction surface of main body beam part 10 and installation beam part 20 is the arch setting in the transverse direction.

Specifically, the connection between the main body beam portion 10 and the mounting beam portion 20 is provided in an arch shape, so that the connection strength between the main body beam portion 10 and the mounting beam portion 20 can be further improved, and the structural reliability and stability of the sub-frame rail 100 can be improved.

In addition, since the motor reducer on the sub-frame beam 100 can vibrate during normal operation, when vibration is transmitted to the connection surface between the main body beam 10 and the mounting beam 20, the connection surface which is arched in the transverse direction can generate better absorption and buffering effects on vibration, so that vibration noise generated by the motor reducer can be reduced, and the structural design of the sub-frame beam 100 can be further optimized.

As shown in fig. 1 to 7, the cross sections of the main body beam portion 10 and the mounting beam portion 20 are C-shaped, and the mounting beam portion 20 and the main body beam portion 10 together form a reinforcing cavity 23.

Specifically, the cross sections of the installation beam portion 20 and the main body beam portion 10 are both arranged in a C shape, the installation beam portion 20 is arranged to be opened towards one side of the main body beam portion 10, the main body beam portion 10 is arranged to be opened towards one side of the motor speed reducer, after the opened side of the installation beam portion 20 and the opened side of the main body beam portion 10 are welded and fixed, a reinforcing cavity 23 is formed between the installation beam portion 20 and the main body beam portion 10 together, the motor speed reducer is installed on the installation beam portion 20, and in the normal operation process of the motor speed reducer, the motor speed reducer can vibrate, the reinforcing cavity 23 jointly defined by the installation beam portion 20 and the main body beam portion 10 can absorb and buffer vibration of the motor speed reducer, and vibration response sensitivity of the main body beam portion 10 and the installation beam portion 20 can be reduced, so that structural stability and reliability of the installation beam portion 20 and the main body beam portion 10 can be improved, vibration noise generated by the motor speed reducer can be reduced, and driving experience of a vehicle can be improved.

The C-shaped cross sections of the mounting beam portion 20 and the main body beam portion 10 are formed by punching, so that not only stability and reliability of the structures of the mounting beam portion 20 and the main body beam portion 10 can be ensured, but also production and manufacturing of the mounting beam portion 20 and the main body beam portion 10 can be facilitated.

As shown in fig. 1,3, 4, 5 and 6, the mounting beam portion 20 is provided with a suspension mounting bracket 30, a middle portion of a side of the mounting beam portion 20 away from the main body beam portion 10 is provided with a reinforcing concave portion 21, the reinforcing concave portion 21 is arranged to extend laterally, the suspension mounting bracket 30 is arranged in the reinforcing concave portion 21, a projection of the reinforcing concave portion 21 on a vertical plane extending laterally is in a pendant shape, and a projection of the reinforcing concave portion 21 on a vertical plane extending longitudinally is in an arch shape. Specifically, by providing the reinforcing concave portion 21 on the side of the mounting beam portion 20 away from the main body beam portion 10, and providing the suspension mounting bracket 30 to the reinforcing concave portion 21, the suspension mounting bracket 30 can be used for mounting the motor reducer, the reinforcing concave portion 21 can further promote the structural reliability of the mounting beam portion 20, can reduce the response sensitivity to the vibration generated by the motor reducer, thereby can promote the stability of the mounting setting of the suspension mounting bracket 30 on the mounting beam portion 20, and further can promote the stability of the mounting setting of the motor reducer on the suspension mounting bracket 30, thereby can promote the structural reliability of the sub-frame cross member 100.

Further, the reinforcing concave portion 21 is provided at the middle portion of the mounting beam portion 20 in the transverse direction, so that the stress of the mounting beam portion 20 can be more uniform, and the middle portion of the mounting beam portion 20 is weak because the mounting beam portion 20 has a certain length in the transverse direction, and the reinforcing concave portion 21 is provided at the middle portion of the mounting beam portion 20 in the transverse direction, so that the strength of the middle portion of the mounting beam portion 20 can be increased, and the structural reliability of the mounting beam portion 20 can be further improved.

In addition, the projection of the reinforcing concave portion 21 on the transversely extending vertical plane is in a spun-down shape, and the projection of the reinforcing concave portion 21 on the longitudinally extending vertical plane is in an arch shape, so that not only the structural reliability of the reinforcing concave portion 21 can be further improved, but also the reinforcing concave portion 21 of relatively various shapes can further reduce the response sensitivity of the mounting beam portion 20 to the vibration generated by the motor reducer.

As shown in fig. 1 and 3, the subframe 1000 may further mainly include two longitudinal beams 200, where the two longitudinal beams 200 are respectively disposed at two lateral ends of the mounting beam portion 20, and the two longitudinal beams 200 are all disposed in a longitudinal direction in an extending manner, a reinforcing plate 22 is disposed between the mounting beam portion 20 and the longitudinal beams 200, the reinforcing plate 22 may mainly include a main plate portion 221 and two connection portions 222, the main plate portion 221 is in a flat plate shape, and the two connection portions 222 are both disposed on the main plate portion 221 and are respectively connected with the longitudinal beams 200 and the mounting beam portion 20, and the two connection portions 222 are all triangular. Specifically, by providing the reinforcing plate 22 between the mounting beam portion 20 and the side member 200, by connecting one ends of two connecting portions 222 of the reinforcing plate 22 to the main plate portion 221, and connecting the other ends of the two connecting portions 222 to the motor reducer and the side member 200, respectively, the stability and reliability of the connection between the mounting beam portion 20 and the side member 200 can be further improved, so that the side member 200 can absorb and absorb vibrations generated by the motor reducer.

Further, by setting both the connection portions 222 to be triangular, the stability of the triangle is high, so that the strength of the reinforcing plate 22 for connecting and fixing the longitudinal beam 200 and the mounting beam portion 20 can be further improved, the buffering effect of the longitudinal beam 200 on the vibration generated by the motor reducer can be further improved, and the response sensitivity to the vibration generated by the motor reducer can be further reduced.

In some embodiments of the present utility model, the thickness of the stiffener 22 may be 1.0mm, 1.1mm, 1.2mm, 1,3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, which may further increase the structural strength of the stiffener 22, and may further increase the strength of the connection of the suspension mounting bracket 30 and the longitudinal beam 200, and may further decrease the response sensitivity of the subframe rail 100 to vibrations generated by the motor reducer, may decrease the noise of the vehicle, and may increase the riding experience of the occupants.

As shown in fig. 3 and 7 in combination, the mounting beam portion 20 is provided with a suspension mounting bracket 30, the suspension mounting bracket 30 includes two bracket bodies 31 and a flange 32, the bracket bodies 31 are arranged at intervals in the lateral direction, the flange 32 is arranged at one side of the two bracket bodies 31 away from each other, the flange 32 includes a first flange portion 321 and a second flange portion 322, the first flange portion 321 and the second flange portion 322 are respectively located at both longitudinal ends of the flange 32, and the shapes of the first flange portion 321 and the second flange portion 322 are different. Specifically, through setting up the suspension installing support 30 that two horizontal intervals set up on the installation beam portion 20 to install on the support main part 31 of suspension installing support 30 and set up turn-ups 32, turn-ups 32 are located the one side that support main part 31 kept away from each other, not only can promote the structural strength of suspension installing support 30 self like this, after setting up motor reducer in installation beam portion 20 in addition, can make the setting of motor reducer on installation beam portion 20 more reliable and stable.

Further, the shapes of the first flanging part 321 and the second flanging part 322 are set to be different, so that the first flanging part 321 and the second flanging part 322 are arranged differently, the local modal frequency difference of the first flanging part 321 and the second flanging part 322 can be further realized while the structural strength is improved, the risk of resonance of the suspension mounting bracket 30 is reduced, and the vibration response sensitivity of the motor reducer when vibration is transmitted to the position is reduced.

In some embodiments of the present utility model, the thickness of the bracket body 31 is 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, which may further improve the structural strength of the bracket body 31 and may further improve the stability and reliability of the mounting arrangement of the motor reducer on the suspension mounting bracket 30.

As shown in fig. 5, one of the first flange 321 and the second flange 322 is S-shaped, the other is triangular, and the connection between the bracket body 31 and the mounting beam 20 is arched. Specifically, one of the first flanging portion 321 and the second flanging portion 322 is S-shaped, and the other is triangular, so that the structural reliability of the first flanging portion 321 and the second flanging portion 322 can be further improved on the premise of ensuring that the shapes of the first flanging portion 321 and the second flanging portion 322 are different and are arranged differently.

Further, the connection between the bracket body 31 and the mounting beam portion 20 is provided in an arch shape, so that not only the strength of the mounting arrangement of the bracket body 31 on the mounting beam portion 20 can be further improved, but also the length of the connection between the bracket body 31 and the mounting beam portion 20 can be increased, thereby improving the firmness and reliability of the mounting arrangement of the motor reducer on the suspension mounting bracket 30.

Referring to fig. 7, the length L1 of the suspension mount bracket 30 in the longitudinal direction is L1, and L1 satisfies the relation: 105mm is less than or equal to L1 is less than or equal to 115mm, the distance between the two suspension mounting brackets 30 in the transverse direction is L2, and the L2 satisfies the relation: l2 is more than or equal to 95mm and less than or equal to 105mm. Specifically, the length in the longitudinal direction of the suspension mounting bracket 30 is set in a reasonable range, so that the length in the longitudinal direction of the suspension mounting bracket 30 can be prevented from being too large, the structural stability of the suspension mounting bracket 30 is poor, the length in the longitudinal direction of the suspension mounting bracket 30 can be prevented from being too small, the motor reducer cannot be arranged on the suspension mounting bracket 30, and the structural strength of the suspension mounting bracket 30 can be ensured on the premise that the installation setting space of the motor reducer on the suspension mounting bracket 30 is ensured.

Further, the distance between the two suspension mounting brackets 30 in the lateral direction is set within a reasonable range, and the distance between the two suspension mounting brackets 30 in the lateral direction is relatively large, so that the force transmission area and the torsion resistance can be increased when the vibration excitation force generated by the motor reducer is received, the stability and the reliability of the installation and the arrangement of the motor reducer on the suspension mounting brackets 30 can be further improved, and the vibration buffering capacity of the subframe cross beam 100 to the motor reducer can be further improved.

As shown in fig. 4, the middle part of the main body beam portion 10 is provided with a first reinforcing protrusion 11 extending transversely, the projection of the first reinforcing protrusion 11 on a vertical plane extending transversely is elliptical, the projection of the main body beam portion 10 on a vertical plane extending longitudinally is arched, the two transverse ends of the first reinforcing protrusion 11 are provided with second reinforcing protrusions 12, the second reinforcing protrusions 12 are circular, and the second reinforcing protrusions 12 are provided with weight reducing holes. Specifically, by providing the first reinforcing protrusion 11 extending laterally in the middle of the main body beam portion 10, not only can the structural strength of the main body beam portion 10 be increased by the first reinforcing protrusion 11, but also the structural reinforcing effect of the first reinforcing protrusion 11 on the main body beam portion 10 can be distributed more uniformly, so that the structure of the main body beam portion 10 can be made more stable and reliable.

Further, by making the projection of the first reinforcing protrusion 11 on the vertical plane extending laterally elliptical and making the projection of the first reinforcing protrusion 11 on the vertical plane extending longitudinally arched, not only the structural strength of the first reinforcing protrusion 11 can be further improved, but also the vibration damping effect of the first reinforcing protrusion 11 on the vibration generated by the motor reducer can be better due to the relatively diverse shapes, the vibration and noise of the sub-frame cross beam 100 can be reduced, the stability of the sub-frame cross beam 100 can be improved, and the riding experience of a driver and a passenger can be improved. In addition, since the main body beam portion 10 has a certain length in the lateral direction, the structural strength of the lateral middle portion of the main body beam portion 10 is relatively weak, and the first reinforcing protrusion 11 can have a good reinforcing effect on the position where the lateral middle portion of the main body beam portion 10 is relatively weak, so that the structural reliability of the main body beam portion 10 can be further improved.

Further, the second reinforcing protrusions 12 are provided at both lateral ends of the first reinforcing protrusion 11, and the second reinforcing protrusions 12 are made to be circular, so that not only can the structure of the main body beam portion 10 be further reinforced, but also due to the different shapes of the first reinforcing protrusions 11 and the second reinforcing protrusions 12, the difference arrangement of the first reinforcing protrusions 11 and the second reinforcing protrusions 12 can further realize the local modal frequency difference of the subframe cross beam 100 while improving the structural strength, thereby reducing the risk of resonance generated by the suspension mounting bracket 30, and further reducing the vibration response sensitivity when the vibration generated by the motor reducer is transmitted to the position.

In addition, the weight reducing hole 121 is provided in the circular second reinforcing protrusion 12, and the weight of the main body beam 10 can be reduced without changing the structural reinforcing effect of the second reinforcing protrusion 12 on the main body beam 10 by the weight reducing hole 121, so that the main body beam 10 can be made lighter.

In some embodiments of the present utility model, the two second reinforcing protrusions 12 are symmetrically disposed, the two second reinforcing protrusions 12 are respectively provided at the first end and the second end in the lateral direction of the body beam 10, the distance between one of the two second reinforcing protrusions 12 adjacent to the first end and the first end is L1, the distance between one of the two second reinforcing protrusions 12 adjacent to the second end and the second end is L2, and the length in the lateral direction of the body beam 10 is L3, L1, L2, and L3 satisfy the relationship: l1=l2=1/4L 3, so that the reinforcing effect of the second reinforcing protrusion 12 on the structural strength of the main body beam portion 10 can be further improved, and the structural stability and reliability of the sub-frame cross member 10 can be improved.

As shown in fig. 6, the subframe 1000 may further mainly include two longitudinal beams 200, where the two longitudinal beams 200 are respectively disposed at two lateral ends of the main body beam portion 10, and the two longitudinal beams 200 extend in a longitudinal direction, the main body beam portion 10 is provided with an outer extension reinforcing portion 13, the outer extension reinforcing portion 13 is connected with the longitudinal beam 200, and the outer extension reinforcing portion 13 is triangular, and a connection portion between the outer extension reinforcing portion 13 and the longitudinal beam 200 is arched. Specifically, the two longitudinal beams 200 are respectively disposed at two lateral ends of the main body beam portion 10, and the two longitudinal beams 200 are respectively disposed to extend in the longitudinal direction, by disposing the outer extension reinforcing portion 13 on the main body beam portion 10 and making the outer extension reinforcing portion 13 triangular, the triangular outer extension reinforcing portion 13 is connected with the longitudinal beam 200, not only can stability and reliability of the main body beam portion 10 and the longitudinal connection be fixed be improved, but also stability of the main body beam portion 10 for transmitting vibration generated by the motor reducer to the longitudinal beam 200 can be improved, and thus structural reliability of the sub-frame cross beam 100 can be improved.

In addition, by differentiating the connection form of the main body beam portion 10 and the side member 200 from the connection form of the mounting beam portion 20 and the side member 200, it is possible to further realize a local mode frequency difference of the sub-frame cross member 100 while improving the structural strength, thereby reducing the risk of resonance of the suspension mounting bracket 30, and further reducing the vibration response sensitivity when vibration generated by the motor reducer is transmitted to the position.

The subframe 1000 according to the present utility model may mainly include: the third reinforcing protrusion 201 is provided at the joint between the side member 200 and the connecting portion 222, so that the structural strength of the side member 200 itself can be further improved, and the connection between the side member 200 and the mounting beam portion 20 can be further stabilized, thereby further reducing the response sensitivity of the side member 200 to the vibration generated by the motor reducer on the mounting beam portion 20, reducing the noise generated by the vibration of the motor reducer in the vehicle, and improving the structural reliability of the side member 100.

The vehicle according to the present utility model may mainly include: above-mentioned sub vehicle frame 1000, with above-mentioned sub vehicle frame 1000 being applied to the vehicle, not only can make the structure of vehicle more stable, can promote the reliability of vehicle, but also can be with the noise of vehicle to can promote the driving experience of driver to the vehicle.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A subframe rail, comprising:

a main body beam portion (10), the main body beam portion (10) extending laterally;

the installation beam part (20), installation beam part (20) set up in one side of main part beam part (10) and extend the setting in the horizontal direction, installation beam part (20) are used for installing motor reducer, main part beam part (10) with installation beam part (20) connect fixedly and the junction surface is the arch setting in the horizontal direction.

2. The subframe cross-beam according to claim 1, characterized in that the cross-sections of the main body beam portion (10) and the mounting beam portion (20) are C-shaped, the main body beam portion (10) and the mounting beam portion (20) together forming a reinforcement cavity (23).

3. The subframe cross beam according to claim 1, characterized in that a suspension mounting bracket (30) is provided on the mounting beam portion (20), a reinforcing recess (21) is provided in the middle of a side of the mounting beam portion (20) away from the main body beam portion (10), the reinforcing recess (21) is provided to extend laterally, the suspension mounting bracket (30) is provided in the reinforcing recess (21), and a projection of the reinforcing recess (21) on a vertically extending horizontal plane is of a spun-down shape and a projection on a vertically extending vertical plane is of an arch shape.

4. The auxiliary frame cross beam according to claim 1, wherein two suspension mounting brackets (30) which are transversely arranged at intervals are arranged on the mounting beam portion (20), the suspension mounting brackets (30) comprise bracket main bodies (31) and flanges (32), the flanges (32) are arranged on one sides of the two bracket main bodies (31) which are far away from each other, the flanges (32) comprise a first flange portion (321) and a second flange portion (322), and the first flange portion (321) and the second flange portion (322) are respectively arranged at two longitudinal ends of the bracket main bodies (31) and are different in shape.

5. The sub frame cross member according to claim 4, wherein one of the first burring portion (321) and the second burring portion (322) is S-shaped and the other is triangular, and a junction of the bracket main body (31) and the mounting beam portion (20) is arched.

6. The subframe rail according to claim 4, characterized in that the suspension mounting bracket (30) has a length L1 in the longitudinal direction, L1 satisfying the relation: and L1 is more than or equal to 105mm and less than or equal to 115mm, the distance between the two suspension mounting brackets (30) in the transverse direction is L2, and the L2 satisfies the relation: l2 is more than or equal to 95mm and less than or equal to 105mm.

7. The auxiliary frame cross beam according to claim 1, characterized in that a first reinforcing protrusion (11) extending transversely is arranged at the middle part of the main body beam part (10), the projection of the first reinforcing protrusion (11) on a transversely extending vertical plane is elliptical and the projection of the first reinforcing protrusion on a longitudinally extending vertical plane is arched, second reinforcing protrusions (12) are arranged at two transverse ends of the first reinforcing protrusion (11), and the second reinforcing protrusions (12) are circular and are provided with weight reducing holes.

8. A subframe, comprising:

the subframe rail (100) of any one of claims 1-7;

the longitudinal beams (200), the longitudinal beams (200) are two, two longitudinal beams (200) are respectively arranged at the two transverse ends of the auxiliary frame cross beam (100), the longitudinal beams (200) are longitudinally extended and arranged and are all provided with third reinforcing protrusions (201), and the third reinforcing protrusions (201) are connected with the auxiliary frame cross beam (100).

9. The subframe according to claim 8, further comprising a reinforcing plate (22), wherein the reinforcing plate (22) comprises a main plate portion (221) and two connecting portions (222), the main plate portion (221) is flat, the two connecting portions (222) are both provided on the main plate portion (221), one of the two connecting portions (222) is connected with the mounting beam portion (20), the other is connected with the side member (200), and the two connecting portions (222) are both triangular.

10. A vehicle, characterized by comprising: the subframe (1000) of claim 8 or 9.