CN214451378U - Rear auxiliary frame and rear longitudinal beam connecting structure - Google Patents
Rear auxiliary frame and rear longitudinal beam connecting structure Download PDFInfo
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- CN214451378U CN214451378U CN202022891718.8U CN202022891718U CN214451378U CN 214451378 U CN214451378 U CN 214451378U CN 202022891718 U CN202022891718 U CN 202022891718U CN 214451378 U CN214451378 U CN 214451378U
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Abstract
A connecting structure of a rear auxiliary frame and a rear longitudinal beam comprises a rear auxiliary frame, the rear longitudinal beam, a frame beam, a connecting and mounting plate frame, a frame beam lower connecting and mounting plate frame, a frame beam connecting pipe column nut and a connecting bolt. The frame beam is connected with the mounting plate frame, the frame beam is connected with the pipe column nut, and the corresponding surface of the double-U-shaped reinforcement box-shaped structure and the corresponding surface of the rear longitudinal beam are welded together. The upper end of a connecting positioning piece on the rear auxiliary frame extends into an inner hole at the lower end of the frame beam connecting pipe column nut, and the upper end of a connecting bolt penetrates through the inner hole of the connecting positioning piece and the inner hole at the lower end of the frame beam connecting pipe column nut and then is in threaded connection with the upper end of the frame beam connecting pipe column nut. The utility model discloses well two U type reinforcement box column structure is whole and wherein each component all has very high intensity and rigidity, and self manufacturing is easy, also can weld together with the back longeron well simultaneously.
Description
Technical Field
The utility model relates to an automobile body additional strengthening, concretely relates to connection structure of rear motor sub vehicle frame and back longeron.
Background
Under the trend of high-speed development of new energy automobiles, the arrangement of a rear motor and a front motor and a rear motor gradually appears, for a vehicle body in a rear motor form, the rigidity and strength requirements of a mounting point of a sub-frame behind a chassis are very high, under the extreme working condition of CAE analysis, the requirements cannot be met by a common single-layer or double-layer reinforcing plate reinforcing form, the process implementation performance is difficult to guarantee by a stacked traditional reinforcing structure, the increase of materials and weight is also obvious, and therefore the structure needs to be optimized and reinforced to solve the problems.
Chinese patent document No. 201620834078.8, No. CN 205970799U, entitled "a powertrain for a rear-drive pure electric vehicle", discloses a powertrain system for a rear-drive pure electric vehicle: the suspension device comprises a left suspension connected with the left side of a motor, a right suspension connected with the right side of the motor, a front suspension connected with a speed reducer and a rear suspension connected with the speed reducer, wherein the front suspension and the rear suspension are of symmetrical structures, the front suspension is fixed on a support positioned in the center of a front beam of a rear auxiliary frame, the rear suspension is fixed on a support positioned in the center of a rear beam of the rear auxiliary frame, and the front suspension and the rear suspension are large-rigidity suspensions; the left suspension and the right suspension are of symmetrical structures, the left suspension is fixed on a support located at the center of a left longitudinal beam of the rear auxiliary frame, and the right suspension is fixed on a support located at the center of a right longitudinal beam of the rear auxiliary frame. "there is room for improvement in the connection structure of the rear sub-frame and the side member used.
Disclosure of Invention
The utility model aims at providing a rear motor sub vehicle frame and back longeron connection structure that manufacturing is easy, with low costs, and intensity and rigidity are good.
The utility model discloses used technical scheme is: a connecting structure of a rear auxiliary frame and a rear longitudinal beam comprises the rear auxiliary frame, the rear longitudinal beam, a connecting and mounting plate frame on a frame beam, a connecting and mounting plate frame in the frame beam, a connecting and mounting plate frame under the frame beam, a frame beam connecting pipe column nut and a connecting bolt;
the middle part of an upper plate frame flat plate part of the frame beam, which is connected with the mounting plate frame, is provided with an upper plate frame round hole matched with the upper end of the frame beam connecting pipe column nut, the left end and the right end of the upper plate frame flat plate part are respectively bent upwards to form an upper plate frame left side wall and an upper plate frame right side wall, and the front end and the rear end of the upper plate frame flat plate are respectively bent downwards to form an upper plate frame front side wall and an upper plate frame rear side wall;
a middle plate frame round hole matched with the upper end of the frame beam connecting pipe column nut is arranged on a middle plate frame flat plate part connected with the frame beam and provided with the frame beam, and the left end and the right end of the middle plate frame flat plate part are bent upwards to form a left side wall and a right side wall of the middle plate frame respectively;
a lower plate frame round hole is arranged on a lower plate frame flat plate part of the frame beam lower connecting and mounting plate frame; the diameter of the circular hole of the lower plate frame is larger than the inner diameter of the lower end of the frame beam connecting pipe column nut and smaller than the outer diameter of the lower end of the frame beam connecting pipe column nut; the left and right side walls of the left and right lower grillages, the left and right side walls of the upper grillage and the left and right side walls of the middle grillage are connected and welded under the frame beam, wherein the left and right side walls of the upper grillage are positioned above the left and right side walls of the middle grillage;
The corresponding surfaces of the double-U-shaped reinforcement box-shaped structure formed by welding the frame beam upper connecting and mounting plate frames, the frame beam middle connecting and mounting plate frames, the frame beam lower connecting and mounting plate frames and the frame beam connecting pipe columns together through nuts are welded together with the corresponding surfaces of the rear longitudinal beams;
the upper end of a connecting positioning piece on the rear auxiliary frame extends into an inner hole at the lower end of the frame beam connecting pipe column nut, and the upper end of a connecting bolt penetrates through the inner hole of the connecting positioning piece and the inner hole at the lower end of the frame beam connecting pipe column nut and then is in threaded connection with the upper end of the frame beam connecting pipe column nut.
It is to be noted that, here, the upper panel frame front and rear side walls refer to both the upper panel frame front side wall and the upper panel frame rear side wall, and similarly, the lower panel frame left and right side walls refer to the lower panel frame left side wall and the lower panel frame right side wall. The terms "front and back" and "left and right" are used herein to mean "front and back" and "left and right" are the same. The utility model discloses, the lower extreme tip of lateral wall can flush with lower plate frame flat plate part lower surface around the upper plate frame, also can be higher than or be less than lower plate frame flat plate part lower surface, but the surface of lateral wall need weld with the corresponding surface laminating of back longeron about the lower plate frame and be in the same place, the lateral wall all welds with the lateral wall laminating about corresponding lower plate frame about lateral wall and medium plate frame about the upper plate frame and be in the same place. Because the upper connecting and mounting plate frame of the frame beam, the middle connecting and mounting plate frame of the frame beam and the lower connecting and mounting plate frame of the frame beam are all steel plate parts with symmetrical structures, the steel plate parts can be processed and manufactured by adopting a stamping method, and the steel plate frame has the advantages of easiness in processing and manufacturing, low cost and good strength and rigidity.
Preferably, the lower ends of the front and rear side walls of the upper plate frame are respectively bent forwards and backwards to form lower front and rear folded walls of the front and rear side walls of the upper plate frame, and the lower front and rear folded walls of the front and rear side walls of the upper plate frame are welded with the surfaces of the rear longitudinal beams at the corresponding positions. This preferred scheme, the lower surface of folding the wall around under upper ledge front and back lateral wall flushes with the lower surface of lower ledge flat board portion, and the box-shaped structure of two U type stiffeners is in the same place with the easy welding of back longeron, and welding strength is high.
Preferably, the left end and the right end of the front side wall and the right end of the rear side wall of the upper plate frame are respectively bent in the direction away from the round hole of the upper plate frame to form side bent walls of the front side wall and the rear side wall of the upper plate frame, and the side bent walls of the front side wall and the rear side wall of the upper plate frame are welded with the corresponding surfaces of the rear longitudinal beam. This preferred scheme, two U type reinforcement box column structure and back longeron weld together easily, and welding strength is high.
Preferably, the left side wall and the right side wall of the upper plate frame are respectively provided with a groove which extends up and down and is concave to the round hole of the upper plate frame, and the flat plate part of the middle plate frame and the left side wall and the right side wall of the middle plate frame are respectively provided with an upward concave. This preferred scheme, rational in infrastructure is favorable to improving the intensity and the just height of two U type reinforcement box-shaped structure.
Preferably, the front end and the rear end of the bottom of the lower plate frame of the lower connecting and mounting plate frame of the frame beam are bent upwards, the left side wall and the right side wall of the left lower plate frame and the right lower plate frame of the lower connecting and mounting plate frame of the frame beam are bent inwards to form a lower plate frame bending wall, and the lower plate frame bending wall is welded with the corresponding front side wall and the rear side wall of the upper plate frame. This preferred scheme is favorable to improving the intensity and the just height of two U type reinforcement box-like structures.
To sum up, the beneficial effects of the utility model are that: the installation grillage is connected on the frame roof beam in the box-shaped structure of two U type reinforcements, connects in the frame roof beam installation grillage, connects under the frame roof beam installation grillage and is the steel sheet finished piece of symmetrical structure, and the manufacturing is easy, and single component and two U type reinforcements box-shaped structure are whole all to have very high intensity and rigidity, and self manufacturing is easy, also can be in the same place with the back longeron welding well simultaneously.
Drawings
FIG. 1: the utility model is a three-dimensional overall view;
FIG. 2: the three components of the utility model are separated into a three-dimensional schematic diagram;
FIG. 3: a top view;
FIG. 4: A-A is a schematic cross-sectional view;
FIG. 5: the double-U-shaped reinforcement box-shaped structure decomposition schematic diagram is formed by welding a mounting plate frame connected to a frame beam, a mounting plate frame connected to the middle of the frame beam, a mounting plate frame connected to the lower part of the frame beam and a frame beam connecting pipe column nut;
in the figure: rear auxiliary frame 1, connecting positioning piece 1.1, rear longitudinal beam 2, upper connecting and mounting grillage 3 on the grillage beam, upper grillage flat plate part 3.1, upper grillage round hole 3.2, upper grillage left and right side wall 3.3, upper grillage front and rear side wall 3.4, upper grillage front and rear side wall lower front and rear folding wall 3.5, upper grillage front and rear side wall side bending wall 3.6, connecting and mounting grillage 4 in the grillage beam, middle grillage flat plate part 4.1, middle grillage round hole 4.2, middle grillage left and right side wall 4.3, lower grillage lower connecting and mounting grillage 5, lower grillage flat plate part 5.1, lower grillage round hole 5.2, lower grillage left and right side wall 5.3, frame beam connecting pipe column nut 6 and connecting bolt 7.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
As shown in fig. 1-5, the utility model comprises a rear auxiliary frame 1, a rear longitudinal beam 2, a frame beam upper connecting and mounting plate frame 3, a frame beam middle connecting and mounting plate frame 4, a frame beam lower connecting and mounting plate frame 5, a frame beam connecting pipe column nut 6 and a connecting bolt 7.
The middle part of an upper plate frame flat plate part 3.1 of the frame beam, which is connected with the mounting plate frame 3, is provided with an upper plate frame round hole 3.2 matched with the upper end of a frame beam connecting pipe column nut 6, the left end and the right end of the upper plate frame flat plate part 3.1 are respectively bent upwards to form an upper plate frame left side wall 3.3, and the front end and the rear end of the upper plate frame flat plate 3.1 are respectively bent downwards to form an upper plate frame front side wall 3.4 and a lower plate frame front side wall 3.4.
The middle plate frame flat plate part 4.1 of the frame beam for connecting the mounting plate frame 4 is provided with a middle plate frame round hole 4.2 matched with the upper end of the frame beam connecting pipe column nut 6, and the left end and the right end of the middle plate frame flat plate part 4.1 are bent upwards to form a left side wall 4.3 and a right side wall 4.3 of the middle plate frame respectively.
A lower plate frame flat plate part 5.1 of the frame beam lower connecting and mounting plate frame 5 is provided with a lower plate frame round hole 5.2. The diameter of the lower plate frame round hole 5.2 is larger than the inner diameter of the lower end of the frame beam connecting pipe column nut 6 and smaller than the outer diameter of the lower end of the frame beam connecting pipe column nut 6. The left and right side walls 5.3 of the left and right lower grillage and the left and right side walls 3.3 of the upper grillage and the left and right side walls 4.3 of the middle grillage are connected and welded under the frame beam, wherein the left and right side walls 3.3 of the upper grillage are positioned above the left and right side walls 4.3 of the middle grillage.
The corresponding surfaces of the double-U-shaped reinforcement box-shaped structure formed by welding the installation plate frame 3 on the frame beam, the installation plate frame 4 in the frame beam, the installation plate frame 5 under the frame beam and the frame beam connecting pipe column nut 6 are welded together with the corresponding surfaces of the rear longitudinal beam 2.
The upper end of a connecting positioning piece 1.1 on the rear auxiliary frame 1 extends into an inner hole of the frame beam connecting pipe column nut 6, and the upper end of a connecting bolt 7 penetrates through the inner hole of the connecting positioning piece 1.1 and the inner hole at the lower end of the frame beam connecting pipe column nut 6 to be in threaded connection with the upper end of the frame beam connecting pipe column nut 6.
The lower ends of the front and rear side walls 3.4 of the upper plate frame are respectively bent forwards and backwards to form front and rear lower folding walls 3.5 of the front and rear side walls of the upper plate frame, the front and rear lower folding walls 3.5 of the front and rear side walls of the upper plate frame and the lower surface of a lower plate frame flat plate part 5.1 of the frame beam lower connecting and mounting plate frame 5 are flush and welded together, and the front and rear lower folding walls 3.5 of the front and rear side walls of the upper plate frame and the surface of a rear longitudinal beam 2 of a corresponding part are welded together. The left end and the right end of the front side wall 3.4 and the right end of the rear side wall of the upper plate frame are respectively bent towards the direction far away from the round hole 3.2 of the upper plate frame to form the side bending walls 3.6 of the front side wall and the rear side wall of the upper plate frame, and the side bending walls 3.6 of the front side wall and the rear side wall of the upper plate frame are welded with the corresponding surfaces of the rear longitudinal beam 2. Preferably, the left side wall 3.3 and the right side wall 3.3 of the upper plate frame are respectively provided with a groove 3.7 which runs up and down and is concave to the round hole 3.2 of the upper plate frame. The middle plate frame flat plate part 4.1 and the middle plate frame left and right side walls 4.3 are respectively provided with an upward concave 4.4. The front end and the rear end of the lower plate frame bottom 5.1 of the mounting plate frame 5 connected below the frame beam are bent upwards, the left side wall and the right side wall 5.3 of the left lower plate frame and the right side wall of the mounting plate frame 5 connected below the frame beam are bent inwards to form a lower plate frame bending wall 5.4, and the lower plate frame bending wall 5.4 is welded with the corresponding front side wall and the rear side wall 3.4 of the upper plate frame.
The above-described embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Indeed, many equivalent variations in the shapes, constructions and design objectives of the devices according to the present invention are possible. Therefore, all equivalent changes made in the shape, structure and design objectives of the present invention should be considered within the scope of the present invention, i.e. all equivalent changes should be protected by the present invention.
Claims (6)
1. A connecting structure of a rear auxiliary frame and a rear longitudinal beam comprises a rear auxiliary frame (1) and a rear longitudinal beam (2); the method is characterized in that: the device also comprises a mounting plate frame (3) connected to the upper frame beam, a mounting plate frame (4) connected to the middle frame beam, a mounting plate frame (5) connected to the lower frame beam, a column nut (6) connected to the frame beam and a connecting bolt (7);
an upper plate frame round hole (3.2) matched with the upper end of a frame beam connecting pipe column nut (6) is formed in the middle of an upper plate frame part (3.1) of the frame beam for connecting and mounting the plate frame (3), the left end and the right end of the upper plate frame part (3.1) are respectively bent upwards to form an upper plate frame left side wall and an upper plate frame right side wall (3.3), and the front end and the rear end of the upper plate frame plate (3.1) are respectively bent downwards to form an upper plate frame front side wall and a lower plate frame rear side wall (3.4);
A middle plate frame round hole (4.2) matched with the upper end of the frame beam connecting pipe column nut (6) is arranged on a middle plate frame flat plate part (4.1) connected with the frame beam and provided with the frame (4), and the left end and the right end of the middle plate frame flat plate part (4.1) are bent upwards to form a middle plate frame left side wall and a middle plate frame right side wall (4.3) respectively;
a lower plate frame flat plate part (5.1) of the frame beam lower connecting and mounting plate frame (5) is provided with a lower plate frame round hole (5.2); the diameter of the lower plate frame round hole (5.2) is larger than the inner diameter of the lower end of the frame beam connecting pipe column nut (6) and smaller than the outer diameter of the lower end of the frame beam connecting pipe column nut (6); left and right side walls (5.3) of a left lower plate frame and a right lower plate frame of the mounting plate frame (5) are connected with left and right side walls (3.3) of the upper plate frame and left and right side walls (4.3) of the middle plate frame under the frame beam in a joint welding manner, wherein the left and right side walls (3.3) of the upper plate frame are positioned above the left and right side walls (4.3) of the middle plate frame;
the corresponding surface of a double-U-shaped reinforcement box-shaped structure formed by welding a mounting plate frame (3) connected to a frame beam, a mounting plate frame (4) connected to the middle of the frame beam, a mounting plate frame (5) connected to the lower part of the frame beam and a column nut (6) connected to the frame beam is welded with the corresponding surface of the rear longitudinal beam (2);
the upper end of a connecting positioning piece (1.1) on the rear auxiliary frame (1) extends into an inner hole of the frame beam connecting pipe column nut (6), and the upper end of a connecting bolt (7) penetrates through the inner hole of the connecting positioning piece (1.1) and the inner hole at the lower end of the frame beam connecting pipe column nut (6) to be in threaded connection with the upper end of the frame beam connecting pipe column nut (6).
2. The rear subframe and rear side member connecting structure according to claim 1, wherein: the lower ends of the front and rear side walls (3.4) of the upper plate frame are respectively bent forwards and backwards to form lower front and rear folding walls (3.5) of the front and rear side walls of the upper plate frame, and the lower front and rear folding walls (3.5) of the front and rear side walls of the upper plate frame are welded with the surfaces of the rear longitudinal beams (2) at corresponding positions.
3. The rear subframe and rear side member connecting structure according to claim 1, wherein: the left end and the right end of the front side wall (3.4) and the right end of the rear side wall of the upper plate frame are respectively bent towards the direction far away from the round hole (3.2) of the upper plate frame to form side bending walls (3.6) of the front side wall and the rear side wall of the upper plate frame, and the side bending walls (3.6) of the front side wall and the rear side wall of the upper plate frame are welded together with the corresponding surfaces of the rear longitudinal beam (2).
4. The rear subframe and rear side member connecting structure according to claim 1, wherein: the left side wall and the right side wall (3.3) of the upper plate frame are respectively provided with a groove (3.7) which extends up and down and is concave to the round hole (3.2) of the upper plate frame.
5. The rear subframe and rear side member connecting structure according to claim 1, wherein: the flat plate part (4.1) of the middle plate frame and the left and right side walls (4.3) of the middle plate frame are respectively provided with an upward concave (4.4).
6. The rear subframe and rear side member connecting structure according to claim 1, wherein: the front end and the rear end of the lower grillage bottom (5.1) of the mounting grillage (5) are connected under the frame beam, the left side wall and the right side wall (5.3) of the left lower grillage and the right side wall of the mounting grillage (5) are connected under the frame beam, the left side wall and the right side wall (5.3) of the left lower grillage and the right lower grillage are inwards bent to form a lower grillage bending wall (5.4), and the lower grillage bending wall (5.4) is welded with the corresponding front side wall and the rear side wall (3.4) of the upper grillage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891718.8U CN214451378U (en) | 2020-12-02 | 2020-12-02 | Rear auxiliary frame and rear longitudinal beam connecting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891718.8U CN214451378U (en) | 2020-12-02 | 2020-12-02 | Rear auxiliary frame and rear longitudinal beam connecting structure |
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| CN214451378U true CN214451378U (en) | 2021-10-22 |
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| CN202022891718.8U Active CN214451378U (en) | 2020-12-02 | 2020-12-02 | Rear auxiliary frame and rear longitudinal beam connecting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115535089A (en) * | 2022-09-14 | 2022-12-30 | 阿维塔科技(重庆)有限公司 | Rear floor boundary beam structure and vehicle |
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2020
- 2020-12-02 CN CN202022891718.8U patent/CN214451378U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115535089A (en) * | 2022-09-14 | 2022-12-30 | 阿维塔科技(重庆)有限公司 | Rear floor boundary beam structure and vehicle |
| CN115535089B (en) * | 2022-09-14 | 2024-05-17 | 阿维塔科技(重庆)有限公司 | Rear floor boundary beam structure and vehicle |
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