CN220114691U - Auxiliary frame - Google Patents

Abstract

The utility model relates to a subframe which comprises a hollow frame body, wherein the front end of the frame body is provided with a front mounting point for mounting a front motor bracket, the rear end of the frame body is provided with a rear mounting point for mounting a rear motor bracket, reinforcing structures are respectively arranged on the front mounting point and the rear mounting point, each reinforcing structure at least comprises a first reinforcing rib and a second reinforcing rib, the heights of the first reinforcing rib and the second reinforcing rib are different, and the extending directions of the first reinforcing rib and the second reinforcing rib are different. Compared with the prior art, the utility model effectively improves the rigidity performance of each mounting point under the condition of not additionally increasing the weight of the auxiliary frame (namely increasing the thickness of the auxiliary frame plate), thereby realizing the stable mounting of each motor bracket on the auxiliary frame.

Description

Auxiliary frame

Technical Field

The utility model relates to the field of automobile chassis parts, in particular to a subframe.

Background

The auxiliary frame is a framework of a front axle and a rear axle and is an important component of an automobile chassis, and the auxiliary frame has the main effects of weakening the impact of road vibration on the automobile body, improving the connection rigidity of a suspension system, improving the comfort and stability of the automobile in the running process, reducing the noise caused by the engine and the road vibration, and improving the silence level in an automobile cabin. For example, chinese utility model patent No. ZL201820011719.9 (issued with CN 207657901U), chinese utility model patent No. CN202111507889.9 (issued with CN114435474 a), and the like.

The automobile motor is a power source of an automobile and is used for generating driving torque, and the auxiliary frame is provided with a mounting seat for mounting a motor bracket, for example, chinese utility model patent with patent number ZL202122084756.7 (issued with publication number CN 216151578U), chinese utility model patent with application number CN202211130021.6 (published with number CN 115352528A) and the like. The weight of motor is great, and the mounting point that needs on the sub vehicle frame has sufficient rigidity just can stably support the motor support and install the motor on the motor support, generally strengthens the rigidity of mounting point through the mode that increases sub vehicle frame plate body thickness at present, however can increase the weight of sub vehicle frame like this, does not accord with the development direction of lightweight.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the auxiliary frame capable of effectively improving the rigidity performance under the condition of no additional weight increment.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a sub vehicle frame, includes hollow support body, and the front end of this support body is provided with the preceding mounting point that is used for installing preceding motor support, and the rear end is provided with the rear mounting point that is used for installing rear motor support, a serial communication port, be provided with additional strengthening on preceding mounting point and the rear mounting point respectively, each additional strengthening includes first strengthening rib and second strengthening rib respectively to, the difference in height of this first strengthening rib and second strengthening rib, and extending direction is different.

Further, the frame body comprises a left longitudinal beam, a right longitudinal beam, a front cross beam and a rear cross beam, wherein the front cross beam is connected between the front ends of the left longitudinal beam and the right longitudinal beam, the rear cross beam is connected between the rear ends of the left longitudinal beam and the right longitudinal beam,

the front mounting points include a first mounting point and a second mounting point respectively provided on the top surface of the front end of each side member and a third mounting point respectively provided on the top surface of the middle portion of each side member,

the first installation sites and the second installation sites on the longitudinal beams are adjacently arranged at left and right intervals, the top surfaces of the longitudinal beams at the rear sides of the first installation sites and the second installation sites are recessed downwards along the left and right directions to form left and right extending first reinforcing ribs, the inner sides of the recessed parts along the left and right directions are recessed downwards to form front and rear extending second reinforcing ribs, and the front ends of the second reinforcing ribs are connected with the first reinforcing ribs. Therefore, reasonable arrangement of the front mounting point on the frame body can be realized, and structural rigidity of the front mounting point can be further improved through specific arrangement of the reinforcing structure of the front mounting point, so that the front motor bracket can be more firmly mounted on the auxiliary frame.

Further, the top surface of each longitudinal beam is recessed downwards at the rear side of the second reinforcing rib to form a third reinforcing rib which extends leftwards and rightwards, and the third reinforcing rib is connected with the rear end of the second reinforcing rib. Thus, each second reinforcing rib can be connected between the corresponding first reinforcing rib and the corresponding third reinforcing rib, so that the structural strength of each reinforcing structure of the front mounting point is further enhanced, and the structural rigidity of the front mounting point is further improved.

Further, the rear mounting point comprises first mounting seats respectively arranged at the connection part of the left longitudinal beam and the rear cross beam and the connection part of the right longitudinal beam and the rear cross beam, each first mounting seat comprises a first seat body and a second seat body which are oppositely arranged at left and right intervals and respectively in a plate shape, each seat body is vertically arranged along the front and rear direction,

the first seat body is located at the outer side of the second seat body, the top surface of the corresponding longitudinal beam where the first seat body is located is convexly provided with the first reinforcing rib extending front and back, the outer side of the first reinforcing rib is convexly provided with the second reinforcing rib extending from front to back in an inward inclined manner, and the inner side end of the second reinforcing rib is connected with the first reinforcing rib. Structural rigidity at the rear mounting point can be further improved through the concrete arrangement of the reinforcing structure at the rear mounting point, so that the rear motor bracket can be more firmly mounted on the auxiliary frame.

Further, the top surface of the rear cross beam is convexly provided with a reinforcing boss which extends leftwards and rightwards, and the second seat bodies of the first installation seats are respectively fixed at the left end and the right end of the reinforcing boss. Thereby reinforcing the structural strength of the second pedestal of each first mount pad, and then promote the structural rigidity of each first mount pad department.

Further, reinforcing grooves extending leftwards and rightwards are concavely arranged on the top surface of the reinforcing boss at intervals along the front-rear direction. The structural strength of the boss can be further enhanced through designing the reinforcing groove, and further structural rigidity of each second mounting seat is further improved.

Further, the outer sides of the rear ends of the left longitudinal beam and the right longitudinal beam are respectively recessed inwards to form mounting notches, each first mounting seat comprises a base embedded in the corresponding mounting notch, the upper ends of the bases respectively protrude outwards from the top surface of the corresponding longitudinal beam to form fourth reinforcing ribs along the circumferential direction, each first reinforcing rib and each second reinforcing rib are respectively arranged on the top surface of the corresponding base in a protruding mode, and each first seat body is respectively fixed on the top surface of the corresponding base. Thereby reinforcing the structural strength of first pedestal department of each first mount pad, and then promote the structural rigidity of each first mount pad department.

Further, the front end parts of the left longitudinal beam and the right longitudinal beam are respectively provided with a first installation position for installing the anti-collision beam. Thereby being convenient for realizing the installation of the anti-collision beam on the auxiliary frame.

Further, the frame body further comprises a middle cross beam, the left end and the right end of the middle cross beam are respectively fixed with the middle part of each longitudinal beam, and second installation positions for installing the steering gear are respectively arranged on the front side surface of the middle cross beam and the top surface of each longitudinal beam on the front side of the middle cross beam. Thereby being convenient for realizing the installation of the steering gear on the auxiliary frame.

Further, the second mounting seats for mounting the front swing arms are respectively arranged at the longitudinal beams on the left side and the right side of the middle cross beam, and the mounting openings for mounting the rear swing arms are respectively arranged on the left side and the right side of the rear end of each longitudinal beam, so that the front swing arms and the rear swing arms can be conveniently mounted on the auxiliary frame.

Compared with the prior art, the utility model has the advantages that: be provided with additional strengthening on preceding mounting point and the rear mounting point respectively, each additional strengthening includes first strengthening rib and second strengthening rib respectively to, the high difference of this first strengthening rib and second strengthening rib, and extending direction is different, like this under the condition that does not additionally increase sub vehicle frame weight (i.e. does not increase sub vehicle frame plate thickness) effectively promotes the rigidity performance of each mounting point department, thereby can realize each motor support and install firmly on the sub vehicle frame.

Drawings

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

FIG. 2 is a schematic view of the structure of FIG. 1 in another direction;

FIG. 3 is a partially exploded view of a subframe according to an embodiment of the present utility model;

fig. 4 is another partially exploded view of the subframe according to an embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

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 purposes of 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 because the disclosed embodiments of the present utility model may be arranged in different orientations, these directional terms are merely for illustration and should not be construed as limitations, such as "upper", "lower" are not necessarily limited to orientations opposite or coincident with the direction of gravity. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.

As shown in fig. 1 to 4, a subframe includes a hollow frame body 1, a front end of the frame body 1 being provided with a front mounting point 2 for mounting a front motor bracket, and a rear end being provided with a rear mounting point 3 for mounting a rear motor bracket. The front mounting point 2 and the rear mounting point 3 are provided with reinforcing structures 4, respectively, each reinforcing structure 4 includes at least a first reinforcing rib 41 and a second reinforcing rib 42, and the first reinforcing rib 41 and the second reinforcing rib 42 are different in height and in extending direction. Therefore, the utility model effectively improves the rigidity performance of each mounting point by adding the reinforcing structure 4 on each mounting point under the condition of not increasing the weight of the auxiliary frame (namely not increasing the thickness of the auxiliary frame plate), thereby realizing the stable mounting of each motor bracket on the auxiliary frame.

Specifically, in the present embodiment, the frame body 1 includes a left side member 11, a right side member 12, a front cross member 13, and a rear cross member 14, wherein the front cross member 13 is connected between front ends of the left side member 11 and the right side member 12, and the rear cross member 14 is connected between rear ends of the left side member 11 and the right side member 12. The front mounting point 2 includes a first mounting point 21 and a second mounting point 22 respectively provided on the top surfaces of the front ends of the stringers, and a third mounting point 23 respectively provided on the top surfaces of the middle portions of the stringers. The first mounting site 21 and the second mounting site 22 on each longitudinal beam are adjacently arranged at left and right intervals, the top surfaces of the longitudinal beams at the rear sides of the first mounting site 21 and the second mounting site 22 are recessed downwards along the left and right directions to form the first reinforcing rib 41 which extends leftwards and rightwards, the inner sides of the recessed parts along the left and right directions are recessed downwards to form the second reinforcing rib 42 which extends forwards and backwards, and the front ends of the second reinforcing ribs 42 are connected with the first reinforcing rib 41.

Through setting up the rational arrangement that can realize preceding mounting point 2 on support body 1 to, through the concrete setting to the additional strengthening 4 of preceding mounting point 2 department can further promote the structural rigidity of preceding mounting point 2 department, so that preceding motor support can install on the sub vehicle frame more firmly. Preferably, the top surface of each of the stringers is recessed downward at the rear side of the second stiffener 42 to form a third stiffener 43 extending laterally, and the third stiffener 43 is connected to the rear end of the second stiffener 42. In this way, each second reinforcing rib 42 can be connected between the corresponding first reinforcing rib 41 and third reinforcing rib 43, thereby further enhancing the structural strength of each reinforcing structure 4 of the front mounting point 2 and further enhancing the structural rigidity of the front mounting point 2. Namely, the reinforcing structure 4 at the front mounting point 2 in the present embodiment includes the first reinforcing bead 41, the second reinforcing bead 42, and the third reinforcing bead 43.

Further, the rear mounting point 3 includes first mounting seats 31 provided at the connection between the left side member 11 and the rear cross member 14 and the connection between the right side member 12 and the rear cross member 14, and each first mounting seat 31 includes a first seat 311 and a second seat 312 which are provided at right and left intervals and are respectively plate-shaped, and each seat is vertically provided in the front-rear direction. The first seat body 311 is located at the outer side of the second seat body 312, the top surface of the corresponding longitudinal beam where the first seat body 311 is located is convexly provided with the first reinforcing rib 41 extending front and back, the outer side of the first reinforcing rib 41 is convexly provided with the second reinforcing rib 42 extending obliquely inwards from front to back, and the inner side end of the second reinforcing rib 42 is connected with the first reinforcing rib 41. The structural rigidity at the rear mounting point 3 can be further improved by the specific arrangement of the reinforcing structure 4 at the rear mounting point 3, so that the rear motor bracket can be more firmly mounted on the subframe. Preferably, the top surface of the rear cross member 14 is provided with a reinforcing boss 141 extending laterally, and the second base 312 of each first mounting seat 31 is fixed to the left and right ends of the reinforcing boss 141, so as to enhance the structural strength of the second base 312 of each first mounting seat 31, and further improve the structural rigidity of each first mounting seat 31. Further preferably, the top surface of the reinforcing boss 141 is provided with reinforcing grooves 1411 extending in the left-right direction at intervals in the front-rear direction. The structural strength at the reinforcing boss 141 can be further enhanced by designing the reinforcing groove 1411, thereby further improving the structural rigidity at each second mount 7.

Specifically, in the present embodiment, the outer sides of the rear ends of the left and right stringers 11, 12 are respectively recessed inward to form the mounting notches 10, each first mounting seat 31 includes a base 310 embedded in the corresponding mounting notch 10, the upper end of each base 310 is respectively protruded from the top surface of the corresponding stringer to form a fourth reinforcing rib 44 along the circumferential direction, each first reinforcing rib 41 and each second reinforcing rib 42 are respectively protruded on the top surface of the corresponding base 310, and each first seat 311 is respectively fixed on the top surface of the corresponding base 310, so as to enhance the structural strength of the first seat 311 of each first mounting seat 31, and further improve the structural rigidity of the first mounting seat 31. It can be seen that the reinforcing structure 4 at the rear mounting point 3 described above in this embodiment includes the first reinforcing bead 41, the second reinforcing bead 42, and the fourth reinforcing bead 44 described above. Specifically, in the present embodiment, the front side of the top surface of each base is recessed downward to form the second stiffener 42, and the inner side of the recess is recessed downward to form the first stiffener 41, where each first seat 311 is disposed along the length direction corresponding to the first stiffener 41.

Further, the front end portions of the left side member 11 and the right side member 12 are respectively provided with a first mounting position 5 for mounting the impact beam, so that the impact beam is mounted on the subframe conveniently. And the first mounting points 91 for connecting the vehicle bodies are respectively arranged on the longitudinal beams after the corresponding first mounting positions 5, and the second mounting points 82 for connecting the vehicle bodies are respectively arranged at the left end and the right end of the rear cross beam 14.

Further, the frame body 1 further includes a middle cross beam 15, the left and right ends of the middle cross beam 15 are respectively fixed with the middle of each longitudinal beam, and second mounting positions 6 for mounting the steering gear are respectively arranged on the front side surface of the middle cross beam 15 and the top surface of each longitudinal beam on the front side of the middle cross beam 15, so that the mounting of the steering gear on the auxiliary frame is facilitated. In this embodiment, each of the stringers includes a first beam 16 located at a front side and a second beam 17 located at a rear side, wherein the middle cross member 15 is connected between rear ends of the first beam 16 at both sides, the two second beams 17 are integrally formed with the rear cross member 14, and rear ends of the first beams 16 are connected to front ends of the corresponding second beams 17, respectively. In addition, the second mounting seats 7 for mounting the front swing arm are respectively arranged at the longitudinal beams on the left side and the right side of the middle cross beam 15, and the mounting openings 8 for mounting the rear swing arm are respectively arranged at the end parts of the rear cross beam 14, so that the front swing arm and the rear swing arm can be conveniently mounted on the auxiliary frame.

Claims (10)

1. The utility model provides a sub vehicle frame, includes support body (1), and the front end of this support body (1) is provided with preceding mounting point (2) that are used for installing preceding motor support, and the rear end is provided with rear mounting point (3) that are used for installing rear motor support, a serial communication port, be provided with additional strengthening (4) on preceding mounting point (2) and rear mounting point (3) respectively, each additional strengthening (4) include first strengthening rib (41) and second strengthening rib (42) respectively to, the difference in height of this first strengthening rib (41) and second strengthening rib (42), and extending direction is different.

2. The subframe according to claim 1, wherein the frame body (1) comprises a left side member (11), a right side member (12), a front cross member (13) and a rear cross member (14), wherein the front cross member (13) is connected between the front ends of the left side member (11) and the right side member (12) and the rear cross member (14) is connected between the rear ends of the left side member (11) and the right side member (12),

the front mounting point (2) comprises a first mounting point (21) and a second mounting point (22) which are respectively arranged on the top surface of the front end of each longitudinal beam, a third mounting point (23) which is respectively arranged on the top surface of the middle part of each longitudinal beam,

wherein, the first installation site (21) and the second installation site (22) on each longitudinal beam are adjacently arranged at left and right intervals, the top surfaces of the longitudinal beams at the rear sides of the first installation site (21) and the second installation site (22) are downwards sunken in the left and right directions to form left and right extending first reinforcing ribs (41), the inner sides of the sunken parts in the left and right directions are downwards sunken to form front and rear extending second reinforcing ribs (42), and the front ends of the second reinforcing ribs (42) are connected with the first reinforcing ribs (41).

3. The subframe according to claim 2, wherein the top surface of each of said side members is recessed downward at the rear side of the second reinforcing rib (42) to form a third reinforcing rib (43) extending laterally, said third reinforcing rib (43) being connected to the rear end of said second reinforcing rib (42).

4. The subframe according to claim 2, wherein the rear mounting point (3) includes first mounting seats (31) provided at the connection of the left side member (11) and the rear cross member (14) and at the connection of the right side member (12) and the rear cross member (14), respectively, each first mounting seat (31) includes first and second seat bodies (311, 312) provided opposite each other at right and left intervals and having respective plate shapes, respectively, each seat body being vertically provided in the front-rear direction,

the first seat body (311) is located at the outer side of the second seat body (312), the top surface of the corresponding longitudinal beam where the first seat body (311) is located is convexly provided with the first reinforcing rib (41) extending front and back, the outer side of the first reinforcing rib (41) is convexly provided with the second reinforcing rib (42) extending from front to back in an inward inclined manner, and the inner side end of the second reinforcing rib (42) is connected with the first reinforcing rib (41).

5. The subframe according to claim 4, wherein the rear cross member (14) has a reinforcing boss (141) protruding from the top surface thereof, and the second seat body (312) of each first mounting seat (31) is fixed to both left and right ends of the reinforcing boss (141).

6. The subframe according to claim 5, wherein the reinforcing boss (141) has reinforcing grooves (1411) formed in the top surface thereof at intervals in the front-rear direction so as to extend laterally.

7. The subframe according to any one of claims 4 to 6, wherein the outer sides of the rear ends of the left side member (11) and the right side member (12) are respectively recessed inward to form mounting notches (10), each first mounting seat (31) comprises a base (310) fitted in the corresponding mounting notch (10), the upper end of each base (310) is respectively protruded from the top surface of the corresponding side member to form fourth reinforcing ribs (44) in the circumferential direction, each first reinforcing rib (41) and each second reinforcing rib (42) are respectively protruded from the top surface of the corresponding base (310), and each first seat (311) is respectively fixed on the top surface of the corresponding base (310).

8. The subframe according to any one of claims 2 to 6, wherein the front end portions of the left side member (11) and the right side member (12) are provided with first mounting locations (5) for mounting the impact beam, respectively.

9. The subframe according to any one of claims 1 to 6, wherein the frame body (1) further comprises a center cross member (15), both right and left ends of the center cross member (15) are respectively fixed to the middle portions of the side members, and second mounting locations (6) for mounting the steering gear are respectively provided on the front side surface of the center cross member (15) and on the top surface of the side members on the front side of the center cross member (15).

10. The auxiliary frame as claimed in claim 9, wherein the longitudinal beams on the left and right sides of the middle cross beam (15) are respectively provided with a second mounting seat (7) for mounting the front swing arm, and the rear cross beam (14) is respectively provided with a mounting opening (8) for mounting the rear swing arm at each end.