Auxiliary frame and vehicle

Abstract

The utility model provides an auxiliary frame and a vehicle. The auxiliary frame comprises a reinforcing support, an auxiliary frame upper plate and an auxiliary frame lower plate connected with the auxiliary frame upper plate. A mounting space for accommodating the reinforcing bracket is formed between the auxiliary frame upper plate and the auxiliary frame lower plate; the reinforcing bracket comprises at least two positioning brackets which are connected with each other, and a connecting body which is fixedly connected between the two adjacent positioning brackets; the positioning support is connected with the auxiliary frame upper plate and the auxiliary frame lower plate through bolts. The connecting stability of the auxiliary frame is improved, and the connecting rigidity and strength of the auxiliary frame are also improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle bodies, in particular to a subframe and a vehicle. Background Art

[0002] At present, when a vehicle's subframe is connected to a stabilizer bar and a vehicle body, hollow cylindrical sleeves of different sizes are usually welded between the upper sheet metal and the lower sheet metal of the subframe, and then further fixed and assembled. The disadvantage of the above connection method is that during the further fixing and assembly process, the welding structure between the hollow cylindrical sleeve and the upper sheet metal and the lower sheet metal is likely to cause deformation or durable cracking of the welding position of the upper sheet metal and the lower sheet metal, thereby affecting the connection strength and stiffness of the subframe. Utility Model Content

[0003] The utility model aims at solving the technical problems of poor connection rigidity and strength of auxiliary frames in the prior art, and provides an auxiliary frame and a vehicle.

[0004] In view of the above technical problems, an embodiment of the utility model provides a subframe, including a reinforcing bracket, a subframe upper plate and a subframe lower plate connected to the subframe upper plate; an installation space for accommodating the reinforcing bracket is formed between the subframe upper plate and the subframe lower plate; the reinforcing bracket includes at least two positioning brackets connected to each other, and a connector fixedly connected between two adjacent positioning brackets; the positioning bracket is bolted to the subframe upper plate and the subframe lower plate.

[0005] Optionally, the positioning bracket and the connector are an integrally formed structure.

[0006] Optionally, the positioning bracket is provided with a through hole, the sub-frame lower plate includes a lower plate mounting hole arranged opposite to the through hole; the sub-frame upper plate includes an upper plate mounting hole arranged opposite to the through hole; the reinforcing bracket connects the sub-frame upper plate and the sub-frame lower plate by bolts passing through the lower plate mounting hole, the through hole and the upper plate mounting hole.

[0007] Optionally, the positioning bracket includes a bracket body and an annular boss arranged on the bracket body;

[0008] The positioning bracket has a positioning surface at one end away from the lower plate of the auxiliary frame, the through hole is arranged on the bracket body and passes through the positioning surface, and the annular boss is arranged on the positioning surface around the through hole;

[0009] The annular boss passes through the upper plate mounting hole and extends out of the mounting space, and the positioning surface abuts against the sub-frame upper plate.

[0010] Optionally, the height of the annular boss is smaller than the thickness of the sub-frame upper plate.

[0011] Optionally, the reinforcing bracket includes a first positioning bracket, a second positioning bracket and a third positioning bracket arranged in sequence; the connecting body includes a first connecting body connected between the first positioning bracket and the second positioning bracket, and a second connecting body connected between the second positioning bracket and the third positioning bracket; the subframe is connected to the vehicle body longitudinal beam through the first positioning bracket, and the subframe is connected to the stabilizer bar through the second positioning bracket and the third positioning bracket.

[0012] Optionally, a first connecting line between the first positioning bracket and the second positioning bracket is arranged at a preset angle with a second connecting line between the second positioning bracket and the third positioning bracket.

[0013] Optionally, the through hole includes a first through hole provided on the first positioning bracket; the lower plate mounting hole includes a first mounting hole provided opposite to the first through hole; the upper plate mounting hole includes a second mounting hole provided opposite to the first through hole;

[0014] The subframe further includes a vehicle body connecting column mounted on an end surface of the subframe upper plate away from the reinforcing bracket, and the vehicle body connecting column is arranged opposite to the second mounting hole; the subframe is connected to the vehicle body by a first bolt that sequentially passes through the first mounting hole, the first through hole, the second mounting hole, and the vehicle body connecting column.

[0015] Optionally, the through hole includes a second through hole provided on the second positioning bracket and a third through hole provided on the third positioning bracket; the lower plate mounting hole includes a third mounting hole provided opposite to the second through hole and a fourth mounting hole provided opposite to the third through hole; the upper plate mounting hole includes a fifth mounting hole provided opposite to the second through hole and a sixth mounting hole provided opposite to the third through hole;

[0016] The subframe is connected to the stabilizer bar by a second bolt passing through the third mounting hole, the second through hole, and the fifth mounting hole in sequence, and a third bolt passing through the fourth mounting hole, the third through hole, and the sixth mounting hole in sequence.

[0017] Optionally, the subframe further comprises a vehicle body front connecting bracket mounted on the subframe upper plate and used for connecting the vehicle body front longitudinal beam; and / or

[0018] The sub-frame further includes a reinforcement plate group connected between the sub-frame upper plate and the sub-frame lower plate, and the reinforcement plate group is located in the installation space.

[0019] The utility model also provides a vehicle, comprising the above-mentioned auxiliary frame.

[0020] In the present invention, at least two positioning brackets of the reinforcement bracket are installed in the installation space between the sub-frame upper plate and the sub-frame lower plate, so that a plurality of (at least two) positioning brackets are combined and connected to form an integral reinforcement bracket through a connector, and each positioning bracket is connected to the sub-frame upper plate and the sub-frame lower plate by bolts, so as to connect the sub-frame upper plate and the sub-frame lower plate into a whole. Since all positioning brackets on the sub-frame of the present invention are connected to form an integral reinforcement bracket through a connector, and the connector is fixedly connected between two adjacent positioning brackets, deformation of the reinforcement bracket is avoided, thereby also avoiding deformation of the sub-frame upper plate and the sub-frame lower plate connected to the reinforcement bracket, thereby improving the overall connection stability of the sub-frame.

[0021] At the same time, since the positioning bracket is connected to the sub-frame upper plate and the sub-frame lower plate by bolts, there is no need to weld the positioning bracket to the sub-frame upper plate or the sub-frame lower plate, so that a fixed connection between the positioning bracket and the sub-frame upper plate and the sub-frame lower plate can be achieved, thereby avoiding problems such as deformation or cracking at the welding position, ensuring the installation accuracy of the sub-frame, improving the connection rigidity and strength of the sub-frame, and reducing the cost and time corresponding to the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of a subframe provided by an embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of a subframe provided by an embodiment of the utility model;

[0025] Figure 3 It is a schematic diagram of the installation structure of the reinforcement bracket of the sub-frame and the sub-frame lower plate provided by one embodiment of the utility model;

[0026] Figure 4 It is a structural schematic diagram of a reinforcement bracket of a sub-frame provided by an embodiment of the utility model;

[0027] Figure 5 It is a structural schematic diagram of a reinforcing bracket provided by an embodiment of the utility model from another perspective.

[0028] The reference numerals in the specification are as follows:

[0029] 10-reinforcement bracket, 11-positioning bracket, 110-bracket body, 111-annular boss, 112-positioning surface, 12-connecting body, 13-through hole, 14-first positioning bracket, 140-first through hole, 15-second positioning bracket, 150-second through hole, 16-third positioning bracket, 160-third through hole, 17-first connecting body, 18-second connecting body, 20-sub-frame upper plate, 21-upper plate mounting hole, 210-second mounting hole, 211-fifth mounting hole, 212-sixth mounting hole, 30-sub-frame lower plate, 40-installation space, 50-body connecting column, 60-body front connecting bracket, 70-reinforcement plate group, 71-arc reinforcement plate, 72-auxiliary reinforcement plate; 80-front longitudinal beam connecting bracket. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present invention, in order to better illustrate the structure of the subframe and its connection relationship, the "front end" referred to in the present invention is Figure 2 The upper part of the subframe shown in (i.e., the front part of the vehicle); the "rear end" referred to in this utility model is Figure 2The lower part of the subframe shown in (that is, the rear of the vehicle); the "left side" referred to in this utility model is Figure 2 The left side of the subframe shown in the figure (that is, the left side when the vehicle is moving forward normally), and the "right side" referred to in the utility model is Figure 1 The right side of the subframe shown in (that is, the right side when the vehicle is moving forward normally); the "upper end" referred to in this utility model is Figure 2 The front of the subframe shown in (i.e., the top of the vehicle); the "lower end" referred to in the utility model is Figure 2 The rear of the subframe (i.e., the bottom of the vehicle) is shown in FIG.

[0034] like Figures 1 to 3 As shown, an embodiment of the utility model provides a subframe, including a reinforcing bracket 10, a subframe upper plate 20, and a subframe lower plate 30 connected to the subframe upper plate 20; an installation space 40 for accommodating the reinforcing bracket 10 is formed between the subframe upper plate 20 and the subframe lower plate 30; the reinforcing bracket 10 includes at least two mutually connected positioning brackets 11, and a connector 12 fixedly connected between two adjacent positioning brackets 11; the positioning bracket 11 is bolted to the subframe upper plate 20 and the subframe lower plate 30. Among them, there is an installation space 40 between the subframe upper plate 20 and the subframe lower plate 30, and further, the subframe upper plate 20 and the subframe lower plate 30 can be fixedly connected by welding, screw connection, riveting, clamping, etc. The reinforcing bracket 10 is installed in the installation space 40, and the upper end of the reinforcing bracket 10 is connected to the sub-frame upper plate 20, and the lower end of the reinforcing bracket 10 is connected to the sub-frame lower plate 30; the reinforcing bracket 10 includes at least two positioning brackets 11, and two adjacent positioning brackets 11 are connected by a connector 12, and all (at least two) positioning brackets 11 are connected to the sub-frame upper plate 20 and the sub-frame lower plate 30 by bolts. In this way, the sub-frame of the utility model connects the sub-frame upper plate 20 and the sub-frame lower plate 30 into a whole through at least two positioning brackets 11.

[0035] Furthermore, the number of the positioning brackets 11 can be set according to demand, that is, according to the number of installation points between the subframe and the stabilizer bar, and between the subframe and the vehicle body, the number of the positioning brackets 11 can be three.

[0036] In the above embodiment of the utility model, at least two positioning brackets 11 of the reinforcing bracket 10 are installed in the installation space 40 between the sub-frame upper plate 20 and the sub-frame lower plate 30, so that a plurality of (at least two) positioning brackets 11 are combined and connected to form an integral reinforcing bracket 10 through a connector 12, and each positioning bracket 11 is connected to the sub-frame upper plate 20 and the sub-frame lower plate 30 by bolts, so that the sub-frame upper plate 20 and the sub-frame lower plate 30 are connected to form a whole. Since all positioning brackets 11 on the sub-frame of the utility model are connected to form an integral reinforcing bracket 10 through a connector 12, and the connector 12 is fixedly connected between two adjacent positioning brackets 11, deformation of the reinforcing bracket 10 is avoided, thereby also avoiding deformation of the sub-frame upper plate 20 and the sub-frame lower plate 30 connected to the reinforcing bracket 10, thereby improving the overall connection stability of the sub-frame. At the same time, since the positioning bracket 11 is connected to the sub-frame upper plate 20 and the sub-frame lower plate 30 by bolts, there is no need to weld the positioning bracket 11 to the sub-frame upper plate 20 or the sub-frame lower plate 30, so that the fixed connection between the positioning bracket 11 and the sub-frame upper plate 20 and the sub-frame lower plate 30 can be achieved, thereby avoiding problems such as deformation or cracking at the welding position, ensuring the installation accuracy of the sub-frame, improving the connection rigidity and strength of the sub-frame, and reducing the cost and time corresponding to the welding process.

[0037] In one embodiment, if Figure 3 As shown, the positioning bracket 11 and the connector 12 are an integrally formed structure. It is understandable that the number of positioning brackets 11 is two or more than two, so that two adjacent positioning brackets 11 are connected by the connector 12, and finally all positioning brackets 11 and all connectors 12 are connected to form an integrally formed structure. That is, the reinforcing bracket 10 is an integrally formed structure, which can not only increase the structural stability of the reinforcing bracket 10 itself, but also improve the connection strength and rigidity of the sub-frame mounting position. In some embodiments, when the number of positioning brackets 11 is too large, or for reasons such as ease of installation and carrying, the fixing method between the positioning bracket 11 and the connector 12 can also be set to welding, screw connection, etc., and the utility model does not limit this.

[0038] In one embodiment, if Figures 2 to 4 As shown, the positioning bracket 11 is provided with a through hole 13, the sub-frame lower plate 30 includes a lower plate mounting hole (not shown) arranged opposite to the through hole 13; the sub-frame upper plate 20 includes an upper plate mounting hole 21 arranged opposite to the through hole 13; the reinforcing bracket 10 connects the sub-frame upper plate 20 and the sub-frame lower plate 30 by bolts passing through the lower plate mounting hole, the through hole 13 and the upper plate mounting hole 21.

[0039] Understandably, the sub-frame lower plate 30 is provided with a lower plate mounting hole (not shown), the positioning bracket 11 is provided with a through hole 13, and the sub-frame upper plate 20 is provided with an upper plate mounting hole 21; the lower plate mounting hole, the through hole 13 and the upper plate mounting hole 21 are relatively arranged, and the bolts pass through the upper plate mounting hole 21, the through hole 13 and the lower plate mounting hole to fix the sub-frame upper plate 20, the reinforcement bracket 10 and the sub-frame lower plate 30. In this way, the sub-frame upper plate 20 and the sub-frame lower plate 30 do not need to be welded to the positioning bracket 11, so welding deformation and durable cracking will not occur. In addition, since there is no need for welding, deformation and cracking are not likely to occur, and therefore, the number of additional reinforcement parts added between the sub-frame upper plate 20 and the sub-frame lower plate 30 is also reduced, and the installation accuracy of the sub-frame can also be guaranteed at the same time, achieving the dual role of reducing costs and increasing efficiency.

[0040] That is, in the present embodiment, the positioning bracket 11 can also provide an installation point for the connection between the subframe and the stabilizer bar or the vehicle body; in this way, the subframe, the stabilizer bar and the vehicle body can be firmly connected by combining the integral reinforcing bracket 10, thereby strengthening the connection stability between the subframe, the stabilizer bar and the vehicle body, and improving the connection stiffness and strength of the subframe and the vehicle body installation area. The stiffness and strength of the suspension system are also improved, so that the vehicle body has better comfort and stability, thereby reducing the transmission of excitations such as vibration and noise of the road surface to the vehicle body, effectively improving road noise and tire noise, thereby reducing the transmission of excitations such as vibration and noise of the road surface to the vehicle body, effectively improving road noise and tire noise, and improving the NVH (noise, vibration and harshness) performance of the whole vehicle.

[0041] In one embodiment, if Figure 3 and Figure 4As shown, the positioning bracket 11 includes a bracket body 110 and an annular boss 111 arranged on the bracket body 110; a positioning surface 112 is provided at one end of the positioning bracket 11 away from the sub-frame lower plate 30, the through hole 13 is arranged on the bracket body 110 and passes through the positioning surface 112, and the annular boss 111 is arranged on the positioning surface 112 around the through hole 13; the annular boss 111 passes through the upper plate mounting hole 21 and extends out of the mounting space 40, and the positioning surface 112 abuts against the sub-frame upper plate 20. Understandably, a positioning surface 112 is provided on the bracket body 110 of the positioning bracket 11 at one end away from the sub-frame lower plate 30, and the through hole 13 runs through the bracket body 110 and passes through the positioning surface 112, that is, the through hole 13 is provided in the middle of the positioning surface 112, and an annular boss 111 is provided around the through hole 13 on the positioning surface 112. When the annular boss 111 passes through the upper plate mounting hole 21 and extends out of the mounting space 40, the positioning surface 112 abuts against the sub-frame upper plate 20. The design of the positioning surface 112 and the annular boss 111 helps to accurately locate the installation position between the reinforcing bracket 10 and the sub-frame upper plate 20 during assembly and installation, thereby ensuring the accuracy of the relative position during the assembly process.

[0042] Understandably, in order to meet the installation requirements of sub-frames of different sizes and models, different positioning surfaces 112 corresponding to different positioning brackets 11 can be located on the same plane or on different planes, and this is not limited here. Similarly, when the positioning surfaces 112 of the first positioning bracket 14, the second positioning bracket 15, and the third positioning bracket 16 close to the sub-frame upper plate 20 are in the same horizontal plane, the end surfaces of the first positioning bracket 14, the second positioning bracket 15, and the third positioning bracket 16 away from the positioning surface 112 shown can be located on the same plane or not, so as to meet different installation requirements.

[0043] In one embodiment, if Figure 3 and Figure 4 As shown, the height of the annular boss 111 is less than the thickness of the sub-frame upper plate 20. It can be understood that the height of the annular boss 111 is less than the thickness of the sub-frame upper plate 20, so that when the annular boss 111 passes through the upper plate mounting hole 21 and extends out of the mounting space 40, it will not interfere with the components above the sub-frame upper plate 20, and thus the positioning surface 112 can be kept in contact with the end surface of the sub-frame upper plate 20 close to the sub-frame lower plate 30, so that there is no gap between the two, thereby improving the structural stability of the sub-frame; at the same time, the highest point of the annular boss 111 is located between the positioning surface 112 and the top surface of the sub-frame upper plate 20, providing a certain gap for the bolt connection during the installation process, which helps to prevent over-tightening or damage to the sub-frame upper plate 20 when tightening the bolts.

[0044] In one embodiment, if Figures 3 to 5As shown, the reinforcing bracket 10 includes a first positioning bracket 14, a second positioning bracket 15 and a third positioning bracket 16 arranged in sequence; the connecting body 12 includes a first connecting body 17 connected between the first positioning bracket 14 and the second positioning bracket 15, and a second connecting body 18 connected between the second positioning bracket 15 and the third positioning bracket 16; the subframe is connected to the vehicle body through the first positioning bracket 14, and the subframe is connected to the stabilizer bar through the second positioning bracket 15 and the third positioning bracket 16. It can be understood that the reinforcing bracket 10 includes three positioning brackets 11, which are the first positioning bracket 14, the second positioning bracket 15 and the third positioning bracket 16 arranged in sequence, the first positioning bracket 14 and the second positioning bracket 15 are connected by the first connecting body 17, the second positioning bracket 15 and the third positioning bracket 16 are connected by the second connecting body 18, the first positioning bracket 14 is used to connect the subframe and the vehicle body, and the second positioning bracket 15 is used to connect the subframe and the stabilizer bar. Preferably, the first positioning bracket 14, the first connector 17, the second positioning bracket 15, the first connector 17 and the third positioning bracket 16 are an integrally formed structure, which are sequentially connected to form the reinforcing bracket 10, which can increase the structural stability of the reinforcing bracket 10 itself and further improve the connection strength and rigidity of each installation position of the sub-frame.

[0045] In one embodiment, if Figures 3 to 5 As shown, the first connecting line between the first positioning bracket 14 and the second positioning bracket 15 is arranged at a preset angle with the second connecting line between the second positioning bracket 15 and the third positioning bracket 16. It is understandable that the size of the preset angle can be set according to demand, specifically, determined according to the specific distribution of the installation positions of the stabilizer bar and the vehicle body and the subframe. The preset angle can be an obtuse angle, for example, the preset angle between the first connecting line and the second connecting line can be 100°, 110°, 120°, etc., which is not limited here.

[0046] In one embodiment, if Figure 3As shown, the reinforcing bracket 10 includes a left reinforcing bracket 10 and a right reinforcing bracket 10, and the left reinforcing bracket 10 and the right reinforcing bracket 10 are symmetrically arranged, and both include a first positioning bracket 14, a first connector 17, a second positioning bracket 15, a first connector 17 and a third positioning bracket 16 which are connected in sequence and formed in one piece, and the left reinforcing bracket 10 and the right reinforcing bracket 10 are symmetrically arranged with the central axis of the subframe as the symmetry axis. The arrangement of the left reinforcing bracket 10 and the right reinforcing bracket 10 further strengthens the connection rigidity and strength of the subframe and the vehicle body installation area; in this way, the stabilizer bar on the left side of the vehicle is connected to the left reinforcing bracket 10, the stabilizer bar on the right side of the vehicle is connected to the right reinforcing bracket 10, the left side of the vehicle body is connected to the left reinforcing bracket 10, and the right side of the vehicle body is connected to the right reinforcing bracket 10, so as to meet the installation requirements of the subframe, the body and the stabilizer bar.

[0047] In one embodiment, if Figures 2 to 5 As shown, the through hole 13 includes a first through hole 140 provided on the first positioning bracket 14; the lower plate mounting hole includes a first mounting hole (not shown) provided opposite to the first through hole 140; the upper plate mounting hole 21 includes a second mounting hole 210 provided opposite to the first through hole 140; the sub-frame also includes a body connecting column 50 provided on the end surface of the sub-frame upper plate 20 away from the reinforcing bracket 10, and the body connecting column 50 is provided opposite to the second mounting hole 210; the sub-frame is connected to the body longitudinal beam by a first bolt which passes through the first mounting hole, the first through hole 140, the second mounting hole 210 and the body connecting column 50 in sequence. It can be understood that the body connecting column 50 is welded to the end surface of the sub-frame upper plate 20 away from the reinforcing bracket 10, but it can also be fixed to the sub-frame upper plate 20 by other connection methods, which is not limited here. The vehicle body connecting column 50, the second mounting hole 210, the first through hole 140 on the first positioning bracket 14, and the first mounting hole are all arranged relatively to each other, and the first bolt passes through the first mounting hole, the first through hole 140, the second mounting hole 210, and the vehicle body connecting column 50 in sequence to connect the subframe to the rear end of the vehicle body longitudinal beam; the subframe is bolted to the rear end of the vehicle body longitudinal beam through the first positioning bracket 14 and the vehicle body connecting column 50, thereby achieving a stable connection with the vehicle body longitudinal beam, which not only enhances the structural strength of the subframe and improves the connection accuracy, but also disperses the internal stress of the frame and facilitates maintenance and replacement.

[0048] In one embodiment, if Figures 2 to 5As shown, the through hole 13 includes a second through hole 150 arranged on the second positioning bracket 15 and a third through hole 160 arranged on the third positioning bracket 16; the lower plate mounting hole includes a third mounting hole arranged opposite to the second through hole 150 and a fourth mounting hole arranged opposite to the third through hole 160; the upper plate mounting hole 21 includes a fifth mounting hole 211 arranged opposite to the second through hole 150, and a sixth mounting hole 212 arranged opposite to the third through hole 160; the sub-frame is connected to the stabilizer bar by a second bolt that passes through the third mounting hole, the second through hole 150 and the fifth mounting hole 211 in sequence, and a third bolt that passes through the fourth mounting hole, the third through hole 160 and the sixth mounting hole 212 in sequence. It can be understood that the third mounting hole, the second through hole 150 and the fifth mounting hole 211 are arranged relatively to each other, and the second bolt passes through the third mounting hole, the second through hole 150 and the fifth mounting hole 211 in sequence to connect the sub-frame with the stabilizer bar; the fourth mounting hole, the third through hole 160 and the sixth mounting hole 212 are arranged relatively to each other, and the third bolt passes through the fourth mounting hole, the third through hole 160 and the sixth mounting hole 212 in sequence to connect the sub-frame with the stabilizer bar; the above-mentioned mounting method in this embodiment further enhances the structural strength of the sub-frame and improves the connection accuracy.

[0049] In one embodiment, if Figure 1 and Figure 2 As shown, the subframe further includes a vehicle body front connecting bracket 60 mounted on the subframe upper plate 20 and used to connect the front end of the vehicle body front longitudinal beam. It can be understood that the vehicle body front connecting bracket 60 is used to connect the subframe and the front end of the vehicle body front longitudinal beam to improve the stability and safety of the vehicle.

[0050] Furthermore, if Figure 3 As shown, the sub-frame further includes a reinforcing plate group 70 connected between the sub-frame upper plate 20 and the sub-frame lower plate 30, and the reinforcing plate group 70 is located in the installation space 40. It can be understood that the reinforcing plate group 70 is located in the installation space 40, the first end of the reinforcing plate group 70 is welded to the sub-frame upper plate 20, and the second end of the reinforcing plate group 70 is welded to the sub-frame lower plate 30, which further strengthens the connection rigidity and stability of the sub-frame itself.

[0051] In one embodiment, if Figure 3 As shown, the reinforcing plate group 70 includes an arc-shaped reinforcing plate 71 (as shown in FIG. Figure 3As shown, the arc-shaped reinforcement plate 71 may be U-shaped) and auxiliary reinforcement plates are arranged on both sides of the arc-shaped reinforcement plate 71. It can be understood that the arc-shaped reinforcement plate 71 is installed at the middle position of the installation space 40, and the arc-shaped reinforcement plate 71 can effectively disperse and absorb impact and vibration, and improve the stability of the sub-frame. The auxiliary reinforcement plates are arranged on both sides of the arc-shaped reinforcement plate 71, and form a complete reinforcement plate group 70 with the arc-shaped reinforcement plate 71, so that the reinforcement plate group 70 has a larger cross-sectional area and higher bending rigidity, can withstand a larger load and resist deformation, enhance the rigidity and strength of the sub-frame, and can prevent the sub-frame from deformation or distortion.

[0052] Furthermore, if Figure 3 As shown, the subframe further comprises a front longitudinal beam connecting bracket 80 mounted on the subframe upper plate 20 and used to connect the longitudinal beam of the vehicle body. It can be understood that the front longitudinal beam connecting bracket 80 is used to connect the subframe and the longitudinal beam of the vehicle body to further improve the stability and safety of the vehicle driving.

[0053] The utility model also provides a vehicle, comprising the above-mentioned subframe. In the vehicle in the above-mentioned embodiment of the utility model, the subframe comprises a reinforcing bracket 10, a subframe upper plate 20 and a subframe lower plate 30 connected to the subframe upper plate 20; an installation space 40 for accommodating the reinforcing bracket 10 is formed between the subframe upper plate 20 and the subframe lower plate 30; the reinforcing bracket 10 comprises at least two mutually connected positioning brackets 11, and a connecting body 12 fixedly connected between two adjacent positioning brackets 11; the positioning bracket 11 is bolted to the subframe upper plate 20 and the subframe lower plate 30.

[0054] In the vehicle of the above-mentioned embodiment of the utility model, at least two positioning brackets 11 of the reinforcing bracket 10 are installed in the installation space 40 between the sub-frame upper plate 20 and the sub-frame lower plate 30, so that a plurality of (at least two) positioning brackets 11 are combined and connected to form an integral reinforcing bracket 10 through a connector 12, and each positioning bracket 11 is connected to the sub-frame upper plate 20 and the sub-frame lower plate 30 by bolts, so that the sub-frame upper plate 20 and the sub-frame lower plate 30 are connected to form a whole. Since all the positioning brackets 11 on the sub-frame of the utility model are connected to form an integral reinforcing bracket 10 through a connector 12, and the connector 12 is fixedly connected between two adjacent positioning brackets 11, deformation of the reinforcing bracket 10 is avoided, and deformation of the sub-frame upper plate 20 and the sub-frame lower plate 30 connected to the reinforcing bracket 10 is also avoided, thereby improving the overall connection stability of the sub-frame. At the same time, since the positioning bracket 11 is connected to the sub-frame upper plate 20 and the sub-frame lower plate 30 by bolts, there is no need to weld the positioning bracket 11 to the sub-frame upper plate 20 or the sub-frame lower plate 30, so that the fixed connection between the positioning bracket 11 and the sub-frame upper plate 20 and the sub-frame lower plate 30 can be achieved, thereby avoiding problems such as deformation or cracking at the welding position, ensuring the installation accuracy of the sub-frame, improving the connection rigidity and strength of the sub-frame, and reducing the cost and time corresponding to the welding process.

[0055] The above are merely embodiments of the subframe and vehicle of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A subframe, characterized in that: It includes a reinforcing bracket, a subframe upper plate and a subframe lower plate connected to the subframe upper plate; an installation space for accommodating the reinforcing bracket is formed between the subframe upper plate and the subframe lower plate; the reinforcing bracket includes at least two positioning brackets connected to each other, and a connecting body fixedly connected between two adjacent positioning brackets; the positioning bracket is bolted to the subframe upper plate and the subframe lower plate.

2. The subframe according to claim 1, characterized in that: The positioning bracket and the connecting body are an integrally formed structure.

3. The subframe according to claim 1, characterized in that: The positioning bracket is provided with a through hole, the sub-frame lower plate includes a lower plate mounting hole arranged opposite to the through hole; the sub-frame upper plate includes an upper plate mounting hole arranged opposite to the through hole; the reinforcing bracket connects the sub-frame upper plate and the sub-frame lower plate by bolts passing through the lower plate mounting hole, the through hole and the upper plate mounting hole.

4. The subframe according to claim 3, characterized in that: The positioning bracket comprises a bracket body and an annular boss arranged on the bracket body; The positioning bracket has a positioning surface at one end away from the lower plate of the auxiliary frame, the through hole is arranged on the bracket body and passes through the positioning surface, and the annular boss is arranged on the positioning surface around the through hole; The annular boss passes through the upper plate mounting hole and extends out of the mounting space, and the positioning surface abuts against the sub-frame upper plate.

5. The subframe according to claim 4, characterized in that: The height of the annular boss is smaller than the thickness of the auxiliary frame upper plate.

6. The subframe according to claim 5, characterized in that: The reinforcing bracket includes a first positioning bracket, a second positioning bracket and a third positioning bracket arranged in sequence; the connecting body includes a first connecting body connected between the first positioning bracket and the second positioning bracket, and a second connecting body connected between the second positioning bracket and the third positioning bracket; the subframe is connected to the vehicle body through the first positioning bracket, and the subframe is connected to the stabilizer bar through the second positioning bracket and the third positioning bracket.

7. The subframe according to claim 6, characterized in that: A first connection line between the first positioning bracket and the second positioning bracket is arranged at a preset angle with a second connection line between the second positioning bracket and the third positioning bracket.

8. The subframe according to claim 6, characterized in that: The through hole includes a first through hole arranged on the first positioning bracket; the lower plate mounting hole includes a first mounting hole arranged opposite to the first through hole; the upper plate mounting hole includes a second mounting hole arranged opposite to the first through hole; The subframe further includes a vehicle body connecting column mounted on an end surface of the subframe upper plate away from the reinforcing bracket, and the vehicle body connecting column is arranged opposite to the second mounting hole; the subframe is connected to the vehicle body by a first bolt that sequentially passes through the first mounting hole, the first through hole, the second mounting hole, and the vehicle body connecting column.

9. The subframe according to claim 6, characterized in that: The through holes include a second through hole provided on the second positioning bracket and a third through hole provided on the third positioning bracket; the lower plate mounting hole includes a third mounting hole provided opposite to the second through hole and a fourth mounting hole provided opposite to the third through hole; the upper plate mounting hole includes a fifth mounting hole provided opposite to the second through hole and a sixth mounting hole provided opposite to the third through hole; The subframe is connected to the stabilizer bar by a second bolt passing through the third mounting hole, the second through hole, and the fifth mounting hole in sequence, and a third bolt passing through the fourth mounting hole, the third through hole, and the sixth mounting hole in sequence.

10. The subframe according to claim 1, characterized in that: The subframe further comprises a vehicle body front connecting bracket mounted on the subframe upper plate and used for connecting the vehicle body front longitudinal beam; and / or The sub-frame further includes a reinforcement plate group connected between the sub-frame upper plate and the sub-frame lower plate, and the reinforcement plate group is located in the installation space.

11. A vehicle, characterized in that: The invention comprises the subframe as claimed in any one of claims 1 to 10.

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