CN222408382U - Front subframe and automobile - Google Patents
Front subframe and automobile Download PDFInfo
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- CN222408382U CN222408382U CN202420543593.5U CN202420543593U CN222408382U CN 222408382 U CN222408382 U CN 222408382U CN 202420543593 U CN202420543593 U CN 202420543593U CN 222408382 U CN222408382 U CN 222408382U
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Abstract
本实用新型提供一种前副车架及汽车，前副车架应用于后驱车型，其包括前副车架前段和前副车架后段；前副车架前段包括横管、直管和呈倒C形的弯管；横管的两端部开设有与纵梁前部连接的前段连接孔，横管的中部通过第一连接支架与所述弯管的中部固定连接，所述弯管的左端通过第二连接支架与直管的左端固定连接，所述弯管的右端通过第三连接支架与直管的右端固定连接。前副车架后段的前侧边设置有第四连接支架；前副车架前段通过第二连接支架、第三连接支架与第四连接支架的配合，可拆卸地连接在前副车架后段上。采用本实用新型能在保证碰撞达标的情况下，减轻重量，降低成本。
The utility model provides a front subframe and a car. The front subframe is applied to a rear-wheel drive vehicle, and includes a front subframe front section and a front subframe rear section. The front subframe front section includes a transverse tube, a straight tube and an inverted C-shaped curved tube. The two ends of the transverse tube are provided with front section connecting holes connected to the front part of the longitudinal beam. The middle part of the transverse tube is fixedly connected to the middle part of the curved tube through a first connecting bracket. The left end of the curved tube is fixedly connected to the left end of the straight tube through a second connecting bracket. The right end of the curved tube is fixedly connected to the right end of the straight tube through a third connecting bracket. A fourth connecting bracket is provided on the front side of the rear section of the front subframe. The front subframe front section is detachably connected to the rear section of the front subframe through the cooperation of the second connecting bracket, the third connecting bracket and the fourth connecting bracket. The utility model can reduce weight and cost while ensuring that the collision meets the standard.
Description
Technical Field
The utility model belongs to the field of automobile frames, and particularly relates to a front auxiliary frame and an automobile.
Background
The front auxiliary frame is used as a main supporting body of the cabin part, can provide a mounting base body for other parts, and is an important component of the front cabin. In the development of new energy vehicles, a front drive vehicle type and a rear drive vehicle type are common power system arrangement modes. The motor or the internal combustion engine of the front drive vehicle type can be stably fixed with the front auxiliary frame and the longitudinal beam, and in the collision process, the power system can transmit a part of force to the lower vehicle body through the front auxiliary frame, so that the intrusion of the front wall plate to the passenger cabin is controlled within a certain range. And then the cabin of the driving vehicle type is not electrically driven, and in the collision process, the problem that the collision does not reach the standard occurs because the longitudinal beam is too large in collapsing amount and the front wall plate moves too much backwards to influence the safety of a driver and passengers. For example, CN202923715U discloses a front subframe of an automobile and a corresponding automobile, where the front subframe is pi-shaped, so that the light design scheme is used while fastening the assembly parts, and the cost can be reduced, but if the front subframe is used in a rear-drive automobile, the problem that the collision is not up to standard exists.
CN213199896U discloses a front subframe of a vehicle, which comprises a front subframe section and a rear subframe section which are detachably connected, wherein the front subframe section is provided with a front section vehicle body connecting part, an anti-collision beam connecting part positioned at the front side of the front subframe section, two front motor suspension mounting parts positioned at two ends of the width direction of the vehicle, and the rear subframe section is provided with a steering gear mounting part, a rear section vehicle body connecting part and a rear motor suspension mounting part which is arranged in a triangle with the two front motor suspension mounting parts. The front auxiliary frame of the vehicle adopts a sectional structure, but the main body of the front auxiliary frame is large in size and heavy in size, is only suitable for a front-drive vehicle type, and can increase the cost of the whole vehicle if the front auxiliary frame is used on a rear-drive vehicle type.
Disclosure of utility model
The utility model aims to provide a front auxiliary frame and an automobile, which are suitable for rear-drive automobile types, and can reduce weight and cost under the condition of ensuring that collision reaches the standard.
The front auxiliary frame is applied to a rear drive type and comprises a front auxiliary frame front section and a front auxiliary frame rear section. The front section of the front auxiliary frame comprises a transverse pipe, a straight pipe and an inverted C-shaped bent pipe. The front section connecting holes connected with the front parts of longitudinal beams are formed in the two end parts of the transverse tube, the middle part of the transverse tube is fixedly connected with the middle part of the bent tube through a first connecting bracket, the left end of the bent tube is fixedly connected with the left end of the straight tube through a second connecting bracket, and the right end of the bent tube is fixedly connected with the right end of the straight tube through a third connecting bracket. The front side of the rear section of the front auxiliary frame is provided with a fourth connecting bracket. The front section of the front auxiliary frame is detachably connected to the rear section of the front auxiliary frame through the cooperation of the second connecting bracket, the third connecting bracket and the fourth connecting bracket.
Preferably, the first connecting support is an integrally formed sheet metal part, the middle part of the first connecting support is provided with a reinforcing rib extending along the front-back direction, and the two ends of the first connecting support are provided with reinforcing flanges which are bent inwards. The front edge of the first connecting support is welded with the middle part of the outer wall of the transverse tube, and the rear edge of the first connecting support is welded with the middle part of the outer wall of the bent tube. The reinforcing ribs and the reinforcing flanges increase the strength and rigidity of the first connecting bracket.
Preferably, the two first connecting brackets are arranged at intervals, the front edges of the two first connecting brackets are welded with the middle part of the outer wall of the transverse tube, and the rear edges of the two first connecting brackets are welded with the middle part of the outer wall of the bent tube. The transverse pipe and the bent pipe are connected by the two first connecting brackets, so that the connection is firmer.
Preferably, the second connection bracket and the third connection bracket are symmetrical about the Y-axis (i.e., the second connection bracket and the third connection bracket are bilaterally symmetrical). The second connecting bracket is of a box-shaped structure and is formed by welding a bent first connecting plate and a bent second connecting plate through lap joint flanges at the front side and the rear side, the front wall of the second connecting bracket is provided with a bent pipe first connecting hole, the rear wall of the second connecting bracket is provided with a bent pipe second connecting hole, and the right wall of the second connecting bracket is provided with a straight pipe connecting hole. The left end of the elbow penetrates through the first connecting hole of the elbow and the second connecting hole of the elbow and is welded with the hole wall of the first connecting hole of the elbow and the hole wall of the second connecting hole of the elbow. The left end of the straight pipe stretches into the straight pipe connecting hole and is welded with the hole wall of the straight pipe connecting hole. The second connecting bracket and the third connecting bracket are utilized to realize the connection of the bent pipe and the straight pipe, and the connection is firmer.
Preferably, the upper wall and the lower wall of the second connecting bracket are provided with bracket left connecting holes, and the upper wall and the lower wall of the third connecting bracket are provided with bracket right connecting holes correspondingly. The four connecting brackets are two, the section is U-shaped, the two four connecting brackets are welded at the left end and the right end of the front side edge of the rear section of the front auxiliary frame respectively, and front section mounting holes are formed in the four connecting brackets. The second connecting bracket is inserted into a fourth connecting bracket (namely welded at the left end of the front side edge of the rear section of the front auxiliary frame), and a bolt passes through the front section mounting hole, the left connecting hole of the bracket and is in threaded connection with a nut, so that the threaded connection of the second connecting bracket and the fourth connecting bracket is realized. The third connecting bracket is inserted into the other fourth connecting bracket (namely welded at the right end of the front side edge of the rear section of the front auxiliary frame), and the bolt passes through the front section mounting hole, the right connecting hole of the bracket and is in threaded connection with the nut, so that the threaded connection of the third connecting bracket and the fourth connecting bracket is realized. The front section of the front auxiliary frame is in threaded connection with the rear section of the front auxiliary frame through the threaded connection of the second connecting bracket and the fourth connecting bracket and the threaded connection of the third connecting bracket and the fourth connecting bracket.
Preferably, the cross section of the transverse pipe is square, the cross section of the bent pipe is round, and the cross section of the straight pipe is round. The transverse tube with the square cross section is more beneficial to the connection with the front part of the longitudinal beam.
Preferably, two bracket mounting seats are welded on the straight pipe at intervals, and a first mounting hole of the vibration reduction bracket of the compressor is formed in each bracket mounting seat. A second mounting hole of the vibration reduction bracket of the compressor is formed in the rear section of the front auxiliary frame, and the second mounting holes of the vibration reduction bracket of the compressor and the first mounting holes of the vibration reduction brackets of the two compressors form triangular distribution. The electric compressor can vibrate in the working process, vibration isolation can be achieved through the compressor vibration reduction support (the compressor vibration reduction support is used for installing the electric compressor), the compressor vibration reduction support is installed on the front auxiliary frame through the second installation holes of the compressor vibration reduction support and the first installation holes of the two compressor vibration reduction supports, and stability is guaranteed.
Preferably, two steering gear mounting holes are arranged on the rear section of the front auxiliary frame at intervals, the two steering gear mounting holes are positioned on the same horizontal line, and the two steering gear mounting holes are used for realizing the mounting of the steering gear on the front auxiliary frame. The front left side bracket and the front right side bracket of the rear section of the front auxiliary frame are respectively provided with a rear section first connecting hole connected with the rear part of the longitudinal beam. The left rear mounting seat and the right rear mounting seat of the rear section of the front auxiliary frame are respectively provided with a rear section second connecting hole connected with the rear part of the longitudinal beam. The connection with the rear part of the longitudinal beam is realized by utilizing the two rear section first connecting holes and the two rear section second connecting holes, so that the connection firmness is ensured.
Preferably, a left swing arm first mounting hole and two stabilizer bar left mounting holes are formed in a left rear mounting seat of the rear section of the front auxiliary frame, a left swing arm second mounting hole is formed in a fourth connecting support welded at the left end of the front side edge of the rear section of the front auxiliary frame, and the axis of the Zuo Baibei first mounting hole is perpendicular to the axis of the left swing arm second mounting hole. A right swing arm first mounting hole and two stabilizer bar right mounting holes are formed in a rear right mounting seat of the rear section of the front auxiliary frame, a right swing arm second mounting hole is formed in a fourth connecting support welded at the right end of the front side edge of the rear section of the front auxiliary frame, and the axis of the right swing arm first mounting hole is perpendicular to the axis of the right swing arm second mounting hole. The stabilizer bar left mounting hole and the stabilizer bar right mounting hole are used for realizing the mounting of the stabilizer bar on the front auxiliary frame. The left swing arm is installed on the front auxiliary frame through the left swing arm first installation hole and the left swing arm second installation hole, the axis of the left swing arm first installation hole is perpendicular to the axis of the left swing arm second installation hole, and the limiting effect on the movement of the left swing arm is achieved. The right swing arm is installed on the front auxiliary frame through the first installation hole of the right swing arm and the second installation hole of the right swing arm, the axis of the first installation hole of the right swing arm is perpendicular to the axis of the second installation hole of the right swing arm, and the limiting effect on the movement of the right swing arm is achieved.
The automobile comprises the front auxiliary frame.
The utility model has the following effects:
(1) The horizontal pipe is connected with the bent pipe through the first connecting bracket, and the bent pipe is connected with the straight pipe through the second connecting bracket and the third connecting bracket, so that a front section of the front auxiliary frame is formed, the front section of the front auxiliary frame used by a front-drive vehicle type is lighter in overall weight and lower in cost, the die cost can be reduced, the assembly of workers is easier, the assembly efficiency is improved, and the problem of excessive performance is avoided.
(2) During collision, the front section of the front auxiliary frame can absorb part of collision energy, the two ends of the transverse tube of the front section of the front auxiliary frame are connected with the front part of the longitudinal beam, so that the transmission of force in the collision process can be effectively guided, the collision requirement is met (namely, the collision is guaranteed to reach the standard), and the safety of passengers is guaranteed.
(3) The front section of the front auxiliary frame is detachably connected to the rear section of the front auxiliary frame, and the front section of the front auxiliary frame is easy to replace, so that the platformization can be ensured, the states of parts and components are reduced, and the development cost, the maintenance cost and the management cost are reduced.
Drawings
Fig. 1 is a schematic structural diagram of a front subframe according to an embodiment of the present utility model.
Fig. 2 is a schematic structural view of a front section of a front subframe according to an embodiment of the present utility model.
Fig. 3 is an isometric view of a front section of a front subframe in an embodiment of the utility model.
Fig. 4 is a schematic structural view of a first connection bracket according to an embodiment of the utility model.
Fig. 5 is a front view of a second connecting bracket according to an embodiment of the present utility model.
Fig. 6 is a top view of a second connecting bracket according to an embodiment of the present utility model.
Fig. 7 is a right side view of a second connecting bracket according to an embodiment of the present utility model.
Fig. 8 is a schematic structural view of a rear section of a front subframe according to an embodiment of the present utility model.
Fig. 9 is a schematic structural view of a front subframe with a compressor vibration reduction bracket, a stabilizer bar, a steering gear, a left swing arm and a right swing arm installed in the embodiment of the utility model.
Fig. 10 is an isometric view of a front subframe with a compressor vibration reduction bracket, stabilizer bar, steering gear, left swing arm, and right swing arm installed in an embodiment of the utility model.
In the figure, the front section of the front auxiliary frame, the rear section of the front auxiliary frame, the vibration reduction bracket of the 3-compressor, the 4-electric compressor, the 5-steering gear, the 6-left swing arm, the 7-right swing arm, the 8-stabilizer bar, the 9-swing arm fastening bolt, the 11-transverse tube, the 12-bent tube, the 13-straight tube, the 14-first connecting bracket, the 15-second connecting bracket, the 16-third connecting bracket, the 21-fourth connecting bracket, the 22-second mounting hole of the vibration reduction bracket, the 23-steering gear mounting hole, the 24-first connecting hole of the rear section, the 25-second connecting hole of the rear section, the 26-first mounting hole of the left swing arm, the 27-stabilizer bar left mounting hole, the 28-right swing arm first mounting hole, the 29-stabilizer bar right mounting hole, the 111-front section connecting hole, the 131-bracket mounting seat, the 132-first mounting hole of the vibration reduction bracket of the 141-reinforcing rib, the 142-reinforcing flanging, the 143-positioning hole, the 151-first connecting plate, the 152-second connecting plate, the 153-first connecting hole of the 154-bent tube, the second connecting hole of the 155-bent tube, the 155-first connecting hole of the front section and the front connecting hole of the front section 211-straight tube.
Detailed Description
For a more complete understanding of the nature and the technical content of the embodiments of the present utility model, reference should be made to the following detailed description of embodiments of the utility model, taken in conjunction with the accompanying drawings, which are meant to be illustrative only and not limiting of the embodiments of the utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein is for the purpose of describing embodiments of the utility model only and is not intended to be limiting of the utility model.
In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is to be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with one another without conflict.
It should also be noted that the term "first\second\third\fourth" in relation to embodiments of the present utility model is merely used to distinguish similar objects and does not represent a particular ordering for the objects.
As shown in fig. 1 to 10, the front subframe in the embodiment of the utility model is applied to a rear-drive vehicle type. The front auxiliary frame comprises a front auxiliary frame front section 1 and a front auxiliary frame rear section 2, and the whole front auxiliary frame is of a bilateral symmetry structure.
The front section 1 of the front auxiliary frame comprises a transverse pipe 11, a straight pipe 13 and an inverted C-shaped bent pipe 12. Front section connecting holes 111 connected with the front parts of longitudinal beams are formed in the two end parts of the transverse tube 11, the middle part of the transverse tube 11 is fixedly connected with the middle part of an inverted C-shaped bent tube 12 through a first connecting bracket 14, the left end of the inverted C-shaped bent tube 12 is fixedly connected with the left end of a straight tube 13 through a second connecting bracket 15, and the right end of the inverted C-shaped bent tube 12 is fixedly connected with the right end of the straight tube 13 through a third connecting bracket 16.
In some embodiments, the cross section of the transverse tube 11 is square (i.e., the transverse tube 11 is a square tube), the cross section of the bent tube 12 is circular (i.e., the bent tube 12 is a bent round tube), and the cross section of the straight tube 13 is circular (i.e., the straight tube 13 is a straight round tube).
In some embodiments, the first connecting bracket 14 is an integrally formed sheet metal part, the middle part of the first connecting bracket 14 is provided with a reinforcing rib 141 extending along the front-back direction, two ends of the first connecting bracket 14 are provided with reinforcing flanges 142 which are bent inwards, the front edge of the first connecting bracket 14 is welded with the middle part of the outer wall of the transverse tube 11, and the rear edge of the first connecting bracket 14 is welded with the middle part of the outer wall of the inverted-C-shaped bent tube 12. As an example, there are two reinforcing ribs 141, and the two reinforcing ribs 141 are spaced apart. In some embodiments, the first connecting bracket 14 is further provided with two positioning holes 143 for positioning when the first connecting bracket 14 is welded with the transverse pipe 11 and the inverted-C-shaped bent pipe 12.
In some embodiments, two first connecting brackets 14 are arranged at intervals, the front edges of the two first connecting brackets 14 are welded with the middle part of the outer wall of the transverse tube 11, and the rear edges of the two first connecting brackets 14 are welded with the middle part of the outer wall of the inverted-C-shaped bent tube 12.
In some embodiments, the second connecting bracket 15 and the third connecting bracket 16 are symmetrical about the Y-axis (i.e., the second connecting bracket 15 and the third connecting bracket 16 are symmetrical left and right). The second connecting bracket 15 is in a box-shaped structure and is formed by welding a bent first connecting plate 151 and a bent second connecting plate 152 through lap joint flanges on the front side and the rear side, the front wall of the second connecting bracket 15 is provided with a bent pipe first connecting hole 153, the rear wall of the second connecting bracket 15 is provided with a bent pipe second connecting hole 154, and the right wall of the second connecting bracket 15 is provided with a straight pipe connecting hole 155. The left end of the bent pipe 12 in the inverted C shape passes through the first connecting hole 153 and the second connecting hole 154 of the bent pipe and is welded with the hole wall of the first connecting hole 153 and the hole wall of the second connecting hole 154 of the bent pipe. The left end of the straight pipe 13 stretches into the straight pipe connecting hole 155 and is welded with the hole wall of the straight pipe connecting hole 155. Similarly, the third connecting bracket 16 is welded to the right end of the straight tube 13 in a similar manner, and will not be described again.
Two left bracket connecting holes 156 are formed in the upper wall and the lower wall of the second connecting bracket 15, and two right bracket connecting holes are formed in the upper wall and the lower wall of the third connecting bracket 16 correspondingly. The left end of the front side edge of the rear section 2 of the front auxiliary frame is welded with a fourth connecting bracket 21, the right end of the front side edge of the rear section 2 of the front auxiliary frame is welded with a fourth connecting bracket 21, the cross section of the fourth connecting bracket 21 is U-shaped, and each fourth connecting bracket 21 is provided with two front section mounting holes 211. The second connecting bracket 15 is inserted and welded into the fourth connecting bracket 21 at the left end of the front side edge of the rear section 2 of the front auxiliary frame, the bolt passes through the front section mounting hole 211 and the left connecting hole 156 and is in threaded connection with the nut, the third connecting bracket 16 is inserted and welded into the fourth connecting bracket 21 at the right end of the front side edge of the rear section 2 of the front auxiliary frame, and the bolt passes through the front section mounting hole 211 and the right connecting hole of the bracket and is in threaded connection with the nut, so that the front section 1 of the front auxiliary frame is in threaded connection with the rear section 2 of the front auxiliary frame.
In some embodiments, two bracket mounts 131 are welded to the straight tube 13 at intervals, and each bracket mount 131 is provided with a first mounting hole 132 for a vibration reduction bracket of the compressor. The rear section 2 of the front auxiliary frame is provided with a second mounting hole 22 of the vibration reduction bracket of the compressor, and the second mounting holes 22 of the vibration reduction bracket of the compressor and the first mounting holes 132 of the vibration reduction brackets of the two compressors form triangular distribution. The compressor vibration reduction bracket second mounting hole 22 and the two compressor vibration reduction bracket first mounting holes 132 provide mounting points for the compressor vibration reduction bracket 3, and the compressor vibration reduction bracket 3 is used for mounting the electric compressor 4.
In some embodiments, two steering gear mounting holes 23 are spaced apart on the rear section 2 of the front subframe, the two steering gear mounting holes 23 are located on the same horizontal line, and the two steering gear mounting holes 23 provide mounting points for the steering gear 5.
In some embodiments, a front left side bracket and a front right side bracket of the rear section 2 of the front subframe are respectively provided with a rear section first connecting hole 24 connected with the rear part of the longitudinal beam. The left rear mounting seat and the right rear mounting seat of the rear section 2 of the front auxiliary frame are respectively provided with a rear section second connecting hole 25 connected with the rear part of the longitudinal beam. The connection to the rear of the stringers is achieved by means of two rear-section first connection holes 24 and two rear-section second connection holes 25.
In some embodiments, a left swing arm first mounting hole 26 and two stabilizer bar left mounting holes 27 are formed on a left rear mounting seat of the rear section 2 of the front subframe, a left swing arm second mounting hole is formed on a fourth connecting bracket 21 welded on the left end of the front side edge of the rear section 2 of the front subframe, and the axis of the Zuo Baibei first mounting hole 26 is perpendicular to the axis of the left swing arm second mounting hole. A right swing arm first mounting hole 28 and two stabilizer bar right mounting holes 29 are formed in a right rear mounting seat of the rear section 2 of the front auxiliary frame, a right swing arm second mounting hole is formed in a fourth connecting support 21 welded at the right end of the front side edge of the rear section 2 of the front auxiliary frame, and the axis of the right swing arm first mounting hole 28 is perpendicular to the axis of the right swing arm second mounting hole. The left swing arm first mounting hole 26 and the left swing arm second mounting hole provide mounting points for the left swing arm 6, and the right swing arm first mounting hole 28 and the right swing arm second mounting hole provide mounting points for the right swing arm 7. Two stabilizer left mounting holes 27 and two stabilizer right mounting holes 29 provide mounting points for the stabilizer bar 8.
When the left swing arm 6 is assembled, one swing arm fastening bolt 9 passes through the first mounting hole 26 of the left swing arm, the connecting hole on the left swing arm 6 and is in threaded connection with the nut, and one swing arm fastening bolt 9 passes through the second mounting hole of the left swing arm, the connecting hole on the left swing arm 6 and is in threaded connection with the nut, so that the left swing arm 6 is mounted on the front auxiliary frame.
When the right swing arm 7 is assembled, one swing arm fastening bolt 9 passes through the right swing arm first mounting hole 28, the connecting hole on the right swing arm 7 and is in threaded connection with the nut, and one swing arm fastening bolt 9 passes through the right swing arm second mounting hole, the connecting hole on the right swing arm 7 and is in threaded connection with the nut, so that the right swing arm 7 is mounted on the front auxiliary frame.
The electric compressor 4 is mounted on the compressor vibration reduction bracket 3, the electric compressor 4 and the compressor vibration reduction bracket 3 are assembled as an electric compressor assembly, and three bolts respectively pass through the second mounting holes 22 of the compressor vibration reduction bracket, the first mounting holes 132 of the two compressor vibration reduction brackets and the connecting holes on the compressor vibration reduction bracket 3 and are in threaded connection with nuts, so that the electric compressor assembly is mounted on the front auxiliary frame.
When the steering gear 5 is assembled, two bolts respectively pass through the two steering gear mounting holes 23 and the connecting holes on the steering gear 5 and are in threaded connection with nuts, so that the steering gear 5 is mounted on the front auxiliary frame.
When the stabilizer bar 8 is assembled, two bolts respectively pass through the two stabilizer bar left mounting holes 27 and the connecting holes on the stabilizer bar 8 and are in threaded connection with nuts, and two bolts respectively pass through the two stabilizer bar right mounting holes 29 and the connecting holes on the stabilizer bar 8 and are in threaded connection with nuts, so that the stabilizer bar 8 is mounted on the front auxiliary frame.
The embodiment of the utility model also provides an automobile which is of a rear drive type and comprises the front auxiliary frame.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model.
Claims (10)
1. A front auxiliary frame is applied to a rear-drive vehicle type and is characterized by comprising a front auxiliary frame front section (1) and a front auxiliary frame rear section (2), wherein the front auxiliary frame front section (1) comprises a transverse pipe (11), a straight pipe (13) and an inverted-C-shaped bent pipe (12), front section connecting holes (111) connected with the front part of a longitudinal beam are formed in two end parts of the transverse pipe (11), the middle part of the transverse pipe (11) is fixedly connected with the middle part of the bent pipe (12) through a first connecting bracket (14), the left end of the bent pipe (12) is fixedly connected with the left end of the straight pipe (13) through a second connecting bracket (15), the right end of the bent pipe (12) is fixedly connected with the right end of the straight pipe (13) through a third connecting bracket (16), a fourth connecting bracket (21) is arranged on the front side edge of the front auxiliary frame rear section (2), and the front auxiliary frame front section (1) is detachably connected to the rear section (2) through the cooperation of the second connecting bracket (15), the third connecting bracket (16) and the fourth connecting bracket (21).
2. The front subframe according to claim 1, wherein the first connecting bracket (14) is an integrally formed sheet metal part, a reinforcing rib (141) extending in the front-rear direction is arranged in the middle of the first connecting bracket (14), reinforcing flanges (142) bent inwards are arranged at two ends of the first connecting bracket (14), the front edge of the first connecting bracket (14) is welded with the middle of the outer wall of the transverse tube (11), and the rear edge of the first connecting bracket (14) is welded with the middle of the outer wall of the bent tube (12).
3. The front subframe according to claim 2, wherein the two first connecting brackets (14) are arranged at intervals, the front edges of the two first connecting brackets (14) are welded with the middle part of the outer wall of the transverse tube (11), and the rear edges of the two first connecting brackets (14) are welded with the middle part of the outer wall of the bent tube (12).
4. The front auxiliary frame according to claim 1, wherein the second connecting bracket (15) and the third connecting bracket (16) are symmetrical about a Y-axis, the second connecting bracket (15) is of a box-shaped structure and is formed by welding a bent first connecting plate (151) and a bent second connecting plate (152) through lap joint flanges on front and rear sides, the front wall of the second connecting bracket (15) is provided with a bent pipe first connecting hole (153), the rear wall is provided with a bent pipe second connecting hole (154), the right wall is provided with a straight pipe connecting hole (155), the left end of the bent pipe (12) penetrates through the bent pipe first connecting hole (153) and the bent pipe second connecting hole (154) and is welded with the hole wall of the bent pipe first connecting hole (153) and the hole wall of the bent pipe second connecting hole (154), and the left end of the straight pipe (13) stretches into the straight pipe connecting hole (155) and is welded with the hole wall of the straight pipe connecting hole (155).
5. The front auxiliary frame according to claim 4, wherein the upper wall and the lower wall of the second connecting bracket (15) are respectively provided with a left bracket connecting hole (156), the upper wall and the lower wall of the third connecting bracket (16) are respectively provided with right bracket connecting holes, the cross section of the two fourth connecting brackets (21) is U-shaped, the two fourth connecting brackets (21) are respectively welded at the left end and the right end of the front side edge of the rear section (2) of the front auxiliary frame, the fourth connecting brackets (21) are respectively provided with a front section mounting hole (211), the second connecting bracket (15) is inserted into one fourth connecting bracket (21), a bolt penetrates through the front section mounting hole (211), the left bracket connecting hole (156) and is in threaded connection with a nut, and the third connecting bracket (16) is inserted into the other fourth connecting bracket (21), and the bolt penetrates through the front section mounting hole (211) and the right bracket connecting hole and is in threaded connection with the nut.
6. The front subframe according to any one of claims 1 to 5, wherein the cross tube (11) has a square cross section, the bent tube (12) has a circular cross section, and the straight tube (13) has a circular cross section.
7. The front auxiliary frame according to claim 5, wherein two bracket mounting seats (131) are welded on the straight pipe (13) at intervals, a first mounting hole (132) of a compressor vibration reduction bracket is formed in each bracket mounting seat (131), a second mounting hole (22) of the compressor vibration reduction bracket is formed in the rear section (2) of the front auxiliary frame, and the second mounting holes (22) of the compressor vibration reduction bracket and the first mounting holes (132) of the two compressor vibration reduction brackets form triangular distribution.
8. The front auxiliary frame according to claim 5, wherein two steering gear mounting holes (23) are formed in the rear section (2) of the front auxiliary frame at intervals, the two steering gear mounting holes (23) are located on the same horizontal line, a rear section first connecting hole (24) connected with the rear part of the longitudinal beam is formed in each of a front left side bracket and a front right side bracket of the rear section (2) of the front auxiliary frame, and a rear section second connecting hole (25) connected with the rear part of the longitudinal beam is formed in each of a rear left mounting seat and a rear right mounting seat of the rear section (2) of the front auxiliary frame.
9. The front subframe of claim 8 wherein:
a left swing arm first mounting hole (26) and two stabilizer bar left mounting holes (27) are formed in a left rear mounting seat of the rear section (2) of the front auxiliary frame, a left swing arm second mounting hole is formed in a fourth connecting bracket (21) welded to the left end of the front side edge of the rear section (2) of the front auxiliary frame, and the axis of the first mounting hole (26) of Zuo Baibei is perpendicular to the axis of the left swing arm second mounting hole;
A right swing arm first mounting hole (28) and two stabilizer bar right mounting holes (29) are formed in a right rear mounting seat of the rear section (2) of the front auxiliary frame, a right swing arm second mounting hole is formed in a fourth connecting support (21) welded to the right end of the front side edge of the rear section (2) of the front auxiliary frame, and the axis of the right swing arm first mounting hole (28) is perpendicular to the axis of the right swing arm second mounting hole.
10. An automobile comprising a front subframe according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420543593.5U CN222408382U (en) | 2024-03-20 | 2024-03-20 | Front subframe and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420543593.5U CN222408382U (en) | 2024-03-20 | 2024-03-20 | Front subframe and automobile |
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| Publication Number | Publication Date |
|---|---|
| CN222408382U true CN222408382U (en) | 2025-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420543593.5U Active CN222408382U (en) | 2024-03-20 | 2024-03-20 | Front subframe and automobile |
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| Country | Link |
|---|---|
| CN (1) | CN222408382U (en) |
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