CN219361145U - Auxiliary frame behind light non-plane midspan beam new forms of energy car - Google Patents

Abstract

The utility model relates to the technical field of manufacturing and production of automobiles and auxiliary frames, in particular to a rear auxiliary frame of a light non-planar straddle type middle beam new energy vehicle. The middle cross beam, the front cross beam and the rear cross beam are arranged on the same plane. Comprising the following steps: the upper cross beam, the lower cross beam and the longitudinal beams are arranged in parallel up and down, and the longitudinal beams are vertically arranged left and right to form a frame-shaped aluminum alloy low-pressure hollow casting integrated structure; wherein: the longitudinal beam comprises an upper longitudinal beam and a lower longitudinal beam, the upper longitudinal beam is arc-shaped, an installation arch hole is formed between the upper longitudinal beam and the lower longitudinal beam, a double-layer seat is arranged at the tail end of the lower longitudinal beam or at the corner where the lower longitudinal beam and the lower cross beam intersect, side bushings are arranged on two sides of the lower longitudinal beam and the lower cross beam in a mutually clamped mode, a suspension middle cross beam is further arranged at the bottom end of the double-layer seat, the suspension middle cross beam comprises an oblique beam guide and a middle cross beam main body, and a middle cross beam bushing is arranged at the connection intersection of the top end of the oblique beam guide or the oblique beam guide and the middle cross beam main body.

Description

Auxiliary frame behind light non-plane midspan beam new forms of energy car

Technical Field

The utility model relates to the technical field of manufacturing and production of automobiles and auxiliary frames, in particular to a rear auxiliary frame of a light non-planar straddle type middle beam new energy vehicle.

Background

In order to reduce design, mold and manufacturing costs as much as possible, the prior art rear subframe has been gradually cast with an aluminum alloy low-pressure integrated hollow, such as a rear subframe and a vehicle with a patent number CN202011034263.6, the rear subframe includes a front cross member for mounting a rear suspension system, and the front cross member includes: a front cross member upper plate; the two front beam side plates are respectively connected to the front side and the rear side of the front beam upper plate and are used for installing a first control arm, and the bottoms of the two front beam side plates are mutually overlapped, so that the front beam upper plate and the two front beam side plates form a frame-shaped structure in a circumferential sealing manner; and two front beam lower plates are respectively arranged below the left end and the right end of the front beam upper plate, and are respectively overlapped with the front beam upper plate and the two front beam side plates, wherein the front beam lower plates and the two front beam side plates form avoidance holes for the first control arm to move, and form a frame-shaped structure which is sealed in the circumferential direction with the front beam upper plate. Therefore, by reasonably splitting the front cross beam, the closed section structure within the full width range of the front cross beam is realized to the maximum extent while avoiding the movement of the first control arm, and the rigidity and the bearing capacity of the rear auxiliary frame are greatly improved. The technology has the advantages that the weight of the manufactured rear auxiliary frame is low, the manufacturing cost and the die are low, all required parts can be integrated into a whole for manufacturing, and the independent manufacturing and mounting of a plurality of connecting parts are saved; however, the technology has certain defects that if the girder body of the connecting part girder or side girder lining structure needs to be integrally cast at the setting position, the girder body is thick, so that the strength of the girder or side girder lining structure serving as a 'mounting' substrate can be ensured as much as possible, other design structures in adjacent ranges are not influenced, the damage mode and strength are avoided, and the technology needs the side girder side sleeve of the rear auxiliary frame of the new energy vehicle to be the most needed, so that the development of the rear auxiliary frame which can be integrally cast into the side girder lining is needed.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a rear auxiliary frame of a light non-planar straddle type middle beam new energy vehicle, which is provided with a lining structure capable of being integrally manufactured with a side beam, and is provided with a concave suspension middle beam, wherein the middle beam, the front beam and the rear beam are arranged on the same plane.

In order to solve the technical problems, the utility model adopts the following technical scheme: a light non-planar midspan beam new energy vehicle rear subframe comprising: the upper cross beam, the lower cross beam and the longitudinal beams are arranged in parallel up and down, and the longitudinal beams are vertically arranged left and right to form a frame-shaped aluminum alloy low-pressure hollow casting integrated structure; wherein: the longitudinal beam comprises an upper longitudinal beam and a lower longitudinal beam, the upper longitudinal beam is arc-shaped, an installation arch hole is formed between the upper longitudinal beam and the lower longitudinal beam, a double-layer seat is arranged at the tail end of the lower longitudinal beam or at the corner where the lower longitudinal beam and the lower cross beam intersect, side bushings are arranged on two sides of the lower longitudinal beam and the lower cross beam in a mutually clamped mode, a suspension middle cross beam is further arranged at the bottom end of the double-layer seat, the suspension middle cross beam comprises an oblique beam guide and a middle cross beam main body, and a middle cross beam bushing is arranged at the connection intersection of the top end of the oblique beam guide or the oblique beam guide and the middle cross beam main body. The side beams are integrally cast with the bushing structure, and the suspended middle cross beam is also integrally molded with the bushing structure.

Preferably, the two sides of the head and the tail of the lower cross beam are provided with rear beam bushing beam heads, the rear beam bushing beam heads are shaped like trapezoids or triangles, the rear beam bushing beam heads are integrally shaped and provided with cross beam bushings, and the protruding arrangement of the rear beam bushing beam heads and the double-layer seat are in an upper-lower double-layer relationship. The upper and lower double-layer relation is that the bushing and the connecting rod structure are arranged on different planes, namely the core of the utility model is arranged on a plane instead of the plane, and the assembly, the connection and the arrangement are quite reasonable and convenient.

Preferably, the upper longitudinal beam is provided with a protruding slope ladder part with a triangular or trapezoidal plane shape at the connection position with the upper cross beam, a front beam bushing beam head is arranged at the outer side of the slope ladder part and is clung to the head end position of the lower longitudinal beam, and a cross beam bushing is also arranged at the front beam bushing beam head. The slope ladder portion has avoided the hardness of prior art straight beam connection, has increased the connection area, has improved the mode, and the setting of front beam bush beam head adopts sheet structure and beam head board's combination, and whole weight is very light, but because 1 bush mounting structure has been concentrated to itself, and 3 swing arm mounting structures concentrate in the region that slope ladder portion can relate to, after above-mentioned structure installation finishes, their arm post structure can play the supporting role, so can realize originally the light and the mode that body or solid structure just can realize with the plate body structure.

Preferably, the front beam bushing beam head is provided with Liang Touban outwards, the beam head plate is provided with a front side swing arm seat upwards, and the beam head plate is also provided with a front side lower swing arm seat downwards. The structure of the beam head plate is very light and is biased to the requirement of new energy vehicles.

Preferably, a triangular front Liang Tuomo hole is formed in the top of the ramp portion, an upper longitudinal beam demoulding hole is formed in the highest position of the upper longitudinal beam, and a longitudinal beam swing arm seat is arranged between the upper longitudinal beam demoulding hole and the upper longitudinal beam demoulding hole. The arrangement position of the front Liang Tuomo holes of the ramp part is optimized, and the large mechanical arm can be accessed to the front, back, left and right for part installation;

preferably, the middle cross beam of the suspension is concave, and an X-shaped reinforcing rib is arranged in the suspension weight-reducing groove formed by concave. The concave shape structure and the suspension weight-reducing groove can reduce weight, and the reinforcing ribs capable of adjusting strength are arranged inside the suspension weight-reducing groove, so that the weight is light, and the strength is also high.

Preferably, the front lower swing arm seat is provided with a vehicle body fixing seat around the bottom of the upper cross beam, and the vehicle body fixing seat is obliquely arranged at 35-65 degrees. After the front lower swing arm connecting piece is installed, the outward larger pulling force can cause the body fixing seat to mobilize the stress component around the front lower swing arm seat.

Preferably, the back beam bushing beam head is provided with a back swing arm seat upwards at the same vertical axis with the side bushing. Since the side bushings are provided here, in which the bushing modules are mounted, with a solid structure of very high strength, the provision of the rear swing arm seat is just as much required for a strong support.

A new energy automobile comprises the light non-planar straddle-type middle beam new energy automobile rear auxiliary frame.

The utility model has the main advantages that: 1. the aluminum alloy low-pressure hollow casting integrated structure further integrates more related connecting component structures, and has lighter weight than the prior art; 2. the rear side frame structure of the rear auxiliary frame further clamps the two sides of the lower longitudinal beam and the lower cross beam with side bushings under the condition that the rear side frame structure is an upper longitudinal beam and a lower longitudinal beam and has an arch hole structure, and the clamping integrated molding structure replaces the requirement that two bushing seats are arranged in front in the prior art, and does not occupy redundant space, so that the side beams are integrated into a whole to be cast with the bushing structure; the suspension middle cross beam is a convex connecting structure and the side sill are arranged on the same plane, namely, are arranged in a straddle type mode, and are integrally molded with a bushing structure; 3. in addition, the middle cross beam, the front cross beam and the rear cross beam are arranged on the same plane, and the lining structures arranged on the middle cross beam, the front cross beam and the rear cross beam are not arranged on the same plane, and the directions of the lining structures are different, so that the aim of the utility model that the non-one plane is not mutually interfered is fulfilled.

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 top view of the overall structure;

FIG. 2 is a diagram of an overall bottom view;

FIG. 3 is a side elevational view of the overall structure;

fig. 4 is a perspective view of the structure.

FIG. 5 is a bottom perspective view of the block diagram;

fig. 6 is a diagram showing an installation effect.

In the figure: the upper cross beam 1, the lower cross beam 2, the longitudinal beam 3, the upper longitudinal beam 4 and the lower longitudinal beam 5, the mounting arch hole 6, the corner 7, the double-layer seat 8, the side bushing 9, the suspension middle cross beam 10, the inclined beam guide 11, the middle cross beam main body 12, the rear beam bushing beam head 13, the cross beam bushing 14, the slope ladder 15, the front beam bushing beam head 16, the middle cross beam bushing 17, the beam head plate 18, the front side swing arm seat 19, the front side lower swing arm seat 20, the front Liang Tuo die hole 21, the upper longitudinal beam die hole 22, the longitudinal beam swing arm seat 23, the suspension weight reduction groove 24 and the vehicle body fixing seat 25.

Detailed Description

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", "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 thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "connected," should be construed broadly, unless otherwise explicitly specified and defined, and the specific meaning of the terms in the present utility model will be understood by those of ordinary skill in the art in view of the specific circumstances.

Main embodiment: as shown in fig. 1 and 2, a rear subframe of a light non-planar midspan beam new energy vehicle includes: the upper cross beam 1, the lower cross beam 2 and the longitudinal beams 3 are arranged in parallel up and down, and the longitudinal beams 3 are vertically arranged left and right to form a frame-shaped aluminum alloy low-pressure hollow casting integrated structure; wherein: as shown in fig. 3, the longitudinal beam 3 is divided into an upper longitudinal beam 4 and a lower longitudinal beam 5 behind the upper cross beam 1, the upper longitudinal beam 4 is arc-shaped, the lower longitudinal beam 5 is straight, a camel-shaped structure is arranged, the middle spacing distance between the upper longitudinal beam 4 and the lower longitudinal beam 5 is 1-2 times that of the upper cross beam 1, a transmission structure for installing an engine is arranged between the upper longitudinal beam 4 and the lower longitudinal beam 5, as shown in the figure, the lower longitudinal beam 5 and the lower cross beam 2 or the longitudinal beam 3 intersect to form an L-shaped structure at a corner 7, as shown in the figure 3, a double-layer seat 8 is formed by shaping, the upper part of the double-layer seat 8 is a tail end continuous structure of the upper longitudinal beam 4 and is connected with the lower cross beam 2, and the double-layer seat 8 is provided with side bushings 9 at two sides of the lower longitudinal beam 5 and the lower cross beam 2; therefore, one of the purposes of the utility model is realized, the requirement that two bushing seats are arranged in front in the prior art is replaced, and the redundant space is not occupied any more, so that the side beams are fused and integrally cast into the bushing structure.

As shown in fig. 1, 2 and 5, the bottom end of the double-layer seat 8 is further provided with a suspension middle cross beam 10, the suspension middle cross beam 10 comprises oblique beam guides 11 on two sides and a middle cross beam main body 12 in the center, and a middle cross beam bushing 17 is arranged at the top end of the oblique beam guide 11 or at the connection intersection of the oblique beam guide 11 and the middle cross beam main body 12. The side beams are integrally cast with the bushing structure, and the suspended middle cross beam is also integrally molded with the bushing structure.

As shown in fig. 6, the main body structure of the auxiliary frame of the new energy vehicle with the automobile parts is placed in the frame body, and the protruding relevant structure at the bottom of the rear side is fixedly connected by the middle beam bushing 17 of the suspended middle beam 10 through the bushing connection structure.

As shown in fig. 1 and 2, two sides of the head and the tail of the lower beam 2 are provided with rear beam bushing beam heads 13, the rear beam bushing beam heads 13 are shaped like trapezoids or triangles, the rear beam bushing beam heads 13 are integrally shaped and provided with beam bushings 14, and the protruding arrangement of the rear beam bushing beam heads 13 and the double-layer seat 8 are in an up-down double-layer relationship. The upper and lower double-layer relation is that the bushing and the connecting rod structure are arranged on different planes, namely the core of the utility model is arranged on a plane instead of the plane, and the assembly, the connection and the arrangement are quite reasonable and convenient.

As shown in fig. 3 and 4, the upper side member 4 is provided with a protruding ramp portion 15 having a triangular or trapezoidal planar shape at a position where the upper side member 1 is connected, a front beam bushing head 16 is provided at an outer side of the ramp portion 15 in close contact with a head end position of the lower side member 5, and the front beam bushing head 16 is also provided with a cross beam bushing 14. The slope ladder portion has avoided the hardness of prior art straight beam connection, has increased the connection area, has improved the mode, and the setting of front beam bush beam head adopts sheet structure and beam head board's combination, and whole weight is very light, but because 1 bush mounting structure has been concentrated to itself, and 3 swing arm mounting structures concentrate in the region that slope ladder portion can relate to, after above-mentioned structure installation finishes, their arm post structure can play the supporting role, so can realize originally the light and the mode that body or solid structure just can realize with the plate body structure.

As shown in fig. 4, the front beam bushing beam head 16 is provided with a beam head plate 18 outwards, the beam head plate 18 is provided with a front swing arm seat 19 upwards, and the beam head plate 18 is also provided with a front lower swing arm seat 20 downwards. The structure of the beam head plate is very light and is biased to the requirement of new energy vehicles. The top of the ramp portion 15 is provided with a triangular front Liang Tuo die hole 21, the highest position of the upper longitudinal beam 4 is provided with an upper longitudinal beam demoulding hole 22, and a longitudinal beam swing arm seat 23 is arranged between the upper longitudinal beam demoulding hole and the upper longitudinal beam. The arrangement position of the front Liang Tuomo holes of the ramp part is optimized, and the large mechanical arm can be accessed to the front, back, left and right for part installation; the suspended middle cross beam 10 is concave, and an X-shaped reinforcing rib is arranged in the suspended weight-reducing groove 24 formed by concave. The concave shape structure and the suspension weight-reducing groove can reduce weight, and the reinforcing ribs capable of adjusting strength are arranged inside the suspension weight-reducing groove, so that the weight is light, and the strength is also high. The front lower swing arm seat 20 is provided with a vehicle body fixing seat 25 around the bottom of the upper cross beam 1, and the vehicle body fixing seat 25 is obliquely arranged at 35 degrees. After the front lower swing arm connecting piece is installed, the outward larger pulling force can cause the body fixing seat to mobilize the stress component around the front lower swing arm seat.

As shown in fig. 5, the back beam bushing beam head 13 is provided with a back swing arm seat 26 upwards at the same vertical axis as the side bushing 9. Since the side bushings 9 are provided here, in which the bushing modules are mounted, with a solid structure of very high strength, the provision of the rear swing arm seat is just as much strength support as is required.

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. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more 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 (8)

1. A light non-planar midspan beam new energy vehicle rear subframe comprising: the upper cross beam (1), the lower cross beam (2) and the longitudinal beams (3) are arranged in parallel up and down, and the longitudinal beams (3) are vertically arranged at the left and right sides of the upper cross beam (1) and the lower cross beam (2) to form a frame-shaped aluminum alloy low-pressure hollow casting integrated structure; the method is characterized in that: the longitudinal beam (3) comprises an upper longitudinal beam (4) and a lower longitudinal beam (5), the upper longitudinal beam (4) is arc-shaped, an installation arch hole (6) is formed between the upper longitudinal beam (4) and the lower longitudinal beam (5), a double-layer seat (8) is arranged at the tail end of the lower longitudinal beam (5) or at a corner (7) where the lower longitudinal beam (5) and the lower cross beam (2) intersect, side bushings (9) are arranged on two sides of the lower longitudinal beam (5) and the lower cross beam (2) in a clamping mode, a suspension middle cross beam (10) is further arranged at the bottom end of the double-layer seat (8), the suspension middle cross beam (10) comprises an oblique beam guide (11) and a middle cross beam main body (12), and a middle cross beam bushing (17) is arranged at the connecting intersection position of the top end of the oblique beam guide (11) or the oblique beam guide (11) and the middle cross beam main body (12).

2. The rear subframe of a light non-planar midspan beam new energy vehicle as claimed in claim 1, wherein: the front and rear sides of the lower cross beam (2) are provided with rear beam bushing beam heads (13), the rear beam bushing beam heads (13) are shaped like trapezoids or triangles, the rear beam bushing beam heads (13) are integrally shaped and provided with cross beam bushings (14), and the rear beam bushing beam heads (13) are arranged in a protruding mode and are in an upper-lower double-layer relation with the double-layer seat (8).

3. The rear subframe of a light non-planar midspan beam new energy vehicle as claimed in claim 1, wherein: the upper longitudinal beam (4) is provided with a protruding slope ladder part (15) with triangular or trapezoidal plane shape at the connection position with the upper cross beam (1), a front beam bushing beam head (16) is arranged at the outer side of the slope ladder part (15) and is clung to the head end position of the lower longitudinal beam (5), and a cross beam bushing (14) is also arranged at the front beam bushing beam head (16).

4. A light non-planar midspan beam new energy vehicle rear subframe as recited in claim 3, wherein: the front beam bushing beam head (16) is outwards provided with a Liang Touban (18), the Liang Touban (18) is upwards provided with a front swing arm seat (19), and the Liang Touban (18) is downwards provided with a front lower swing arm seat (20).

5. A light non-planar midspan beam new energy vehicle rear subframe as recited in claim 3, wherein: the top of the slope ladder part (15) is provided with a triangular front Liang Tuomo hole (21), the highest part of the upper longitudinal beam (4) is provided with an upper longitudinal beam demoulding hole (22), and a longitudinal beam swing arm seat (23) is arranged between the two.

6. The rear subframe of a light non-planar midspan beam new energy vehicle as claimed in claim 1, wherein: the suspension middle cross beam (10) is concave, and an X-shaped reinforcing rib is arranged in a suspension weight-reducing groove (24) formed by concave.

7. The rear subframe of the light non-planar straddle-type middle beam new energy vehicle according to claim 4, wherein the rear subframe is characterized in that: the front lower swing arm seat (20) winds the bottom of the upper cross beam (1) and is provided with a vehicle body fixing seat (25), and the vehicle body fixing seat (25) is obliquely arranged at 35-65 degrees.

8. The rear subframe of the light non-planar straddle-type middle beam new energy vehicle according to claim 2, which is characterized in that: the back beam bushing beam head (13) is provided with a back swing arm seat (26) upwards at the same vertical axis with the side bushing (9).