Front subframe structure for a vehicle

Abstract

This utility model discloses a front subframe structure for automobiles, aiming to provide a stable and strong front subframe structure for automobiles. It includes: a lower plate, with a lower reinforcing beam connected to its bottom; a middle section of an upper plate, connected to the front center of the lower plate and forming a box structure; side plates, each with a left and right upper plate section, connected to the left and right sides of the lower plate respectively; and steering knuckles, each with a left and right steering knuckle section, connected to the left and right upper plate sections respectively. The beneficial effects of this utility model are: the structure uses the middle section of the upper plate and the upper reinforcing beam to splice and weld the left and right upper plate sections into a frame structure, and the middle section of the upper plate, the upper reinforcing beam, the left and right upper plate sections, and the lower plate, after welding, form a box structure, thus resulting in strong torsional resistance, high support strength, and good support stability.

Description

Technical Field

[0001] This utility model relates to the technical field of automobile frames, and in particular to a front subframe structure for automobiles. Background Technology

[0002] The subframe is the skeleton of the front and rear axles and is a component of them. It is not a complete frame, but rather a support structure that holds the front and rear axles and suspension together, connecting them to the main frame. It is conventionally called a "subframe" and includes the front subframe and the rear front subframe, both of which are important components of the vehicle chassis. As a crucial support structure providing mounting positions for components such as stabilizer bars, steering gears, engine mounts, and control arms, the subframe is a key load-bearing component.

[0003] The existing subframe has poor stability and support strength. In order to improve the stability and support strength of the subframe, the structure of the front subframe will be improved. Utility Model Content

[0004] This invention aims to overcome the shortcomings of existing structures, such as poor stability and weak support strength, and provides a front subframe structure for automobiles that offers good stability and strong support strength.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a front subframe structure for automobiles, comprising:

[0006] The lower plate has a lower reinforcing beam connected to its lower bottom.

[0007] The upper plate middle section is connected to the front middle of the lower plate and forms a box structure;

[0008] The side panel is provided with an upper left section and an upper right section, which are respectively connected to the left and right sides of the lower panel;

[0009] The ram's horn piece includes a left ram's horn piece and a right ram's horn piece, which are respectively connected to the left section and the right section of the upper plate.

[0010] The front subframe structure includes a lower plate with a lower reinforcing beam at its bottom. This lower reinforcing beam is a channel-shaped structure and is welded to the lower plate. This structure improves the torsional resistance of the lower plate's rear end, as well as its support strength and stability. An upper plate section, a stamped part, is located at the upper center of the lower plate. This upper plate section is welded to the front center of the lower plate, forming a box structure. This box structure improves the support strength and torsional resistance of the lower plate's front end, enhancing its stability. Additionally, side plates are located at both ends of the lower plate. Each side plate includes a left and right upper plate section, which are welded to the lower plate, forming a box structure. A left steering knuckle and a right steering knuckle are welded to the front ends of the left and right sections of the upper plate, respectively. The left and right steering knuckles are welded to the box formed by the left and right sections of the upper plate and the lower plate, respectively. This structure can improve the connection stability and support strength of the left and right steering knuckles, thereby improving the stability of the components installed on the front subframe structure.

[0011] Preferably, the lower plate is connected to an upper reinforcing beam at its rear end. The upper reinforcing beam has an outer extension at both ends, which is connected to the rear ends of the left and right sections of the upper plate, respectively. A heat insulation board bracket is provided at the left end of the upper reinforcing beam. The heat insulation board bracket is a U-shaped piece, with one end connected to the outer extension and the other end connected to the left section of the upper plate. The lower plate is connected to an upper reinforcing beam via welding at its rear end. This upper reinforcing beam is a U-shaped structure with outer edges at both ends. The outer edges on both sides are connected to the tail ends of the left and right sections of the upper plate, respectively, and are positioned on the upper layer. This structure facilitates welding the upper reinforcing beam to the left and right sections of the upper plate. Simultaneously, a heat insulation board bracket is installed at the left end of the upper reinforcing beam. This bracket is a U-shaped component, with one bracket leg connected to the outer edge via welding, and the other bracket leg connected to the tail end of the left section of the upper plate. This structure increases the strength of the lower plate. The upper reinforcing beam connects the left and right sections of the upper plate, reinforcing them and improving the strength and stability of the structure. Furthermore, the welding connection of the heat insulation board bracket using this structure also improves its weld strength, ensuring its strength and stability.

[0012] Preferably, the upper end of the upper reinforcing beam is connected to an exhaust hanger, which is an L-shaped pipe. The exhaust hanger is connected to a hook bracket, which is a U-shaped component. The top of the hook bracket has a groove into which the exhaust hanger is inserted. Specifically, the exhaust hanger, which is an L-shaped pipe, is connected to the upper end of the upper reinforcing beam. A hook bracket, which is a U-shaped component, is welded to the side wall of the tail end of the upper reinforcing beam. The top of the hook bracket has a groove into which the exhaust hanger is inserted. The exhaust hanger is then connected to the hook bracket by welding. This structure ensures the welding stability of the exhaust hanger, guaranteeing its strength and stability.

[0013] Preferably, the upper plate has end flanges at both ends of the middle section, and connecting notches at the left and right ends of the upper plate. These connecting notches connect with the end flanges. The presence of end flanges at both ends of the middle section and connecting notches at the left and right ends facilitates welding. This middle section connects the left and right sections of the upper plate, reinforcing them and improving the strength and stability of the structure.

[0014] Preferably, a suspension reinforcing plate and a steering gear mounting sleeve are connected between the middle section of the upper plate and the lower plate. A connecting groove is provided in the middle of the suspension reinforcing plate, and the steering gear mounting sleeve is connected to the connecting groove. The suspension reinforcing plate improves the stability of the box structure formed by the upper and lower plates, ensuring its support strength. The connecting groove in the middle of the suspension reinforcing plate allows the steering gear mounting sleeve to be placed within it, inserting into the middle section of the upper plate. The end face of the steering gear mounting sleeve contacts the lower plate and is coaxially arranged with an opening on the lower plate. This steering gear mounting sleeve improves the installation stability of the steering gear.

[0015] Preferably, the left and right sections of the upper plate are connected to the lower plate by upper reinforcing plates. The upper reinforcing plates are L-shaped, with a downward-curved edge at their lower ends, which is connected to the lower plate. The left and right sections of the upper plate are welded to the upper reinforcing plates. The upper reinforcing plates, being L-shaped with a downward-curved edge at their lower ends, are welded to the lower plate. This arrangement of upper reinforcing plates increases the strength of the cavity formed by the welded upper left and right sections to the lower plate, thereby improving its supporting strength, torsional resistance, and stability.

[0016] Preferably, the left and right sections of the upper plate are each connected to a rear-mounting sleeve, which is connected to the lower plate. An opening is provided at the tail end of the left and right sections of the upper plate, and a rear-mounting sleeve is fitted into the opening and welded to the lower plate. This structure supports the tail ends of the left and right sections of the upper plate, improving their support strength.

[0017] Preferably, both the left and right ram's horn pieces are box-shaped by a front ram's horn plate and a rear ram's horn plate. The front ends of the left and right sections of the upper plate are respectively provided with upper slots, and the front end of the lower plate is provided with a lower slot. The upper and lower slots are aligned. The box-shaped structure formed by the front and rear ram's horn plates is inserted into the upper and lower slots. The inner ends of the box-shaped structures of the left and right ram's horn pieces are connected to ram's horn sealing plates, and the tops of the left and right ram's horn pieces are connected to front mounting sleeves. The left and right horn pieces are both welded together to form a box body using a front horn plate and a rear horn plate. This structure improves the strength of the left and right horn pieces. Upper slots are provided at the front ends of the left and right sections of the upper plate, and these upper slots are coaxially aligned with the lower slot at the front end of the lower plate. This structure facilitates the installation of the box body formed by the front and rear horn plates, allowing the box body to be inserted into the upper and lower slots. This structure enhances the welding strength of the left and right horn pieces, improving their stability during subsequent installation and suspension. Additionally, horn sealing plates are provided at the inner ends of the box body formed by the front and rear horn plates, increasing the support strength of the box body. Front mounting sleeves are connected to the top of the left and right horn pieces, further improving the support stability and strength during subsequent installation and suspension.

[0018] Preferably, water pipe supports are connected to the upper surfaces of the middle section and the right section of the upper plate. The water pipe supports are U-shaped and have snap-fit ​​holes. Water pipe supports are welded to the middle section and the right section of the upper plate, respectively. These water pipe supports have snap-fit ​​holes for engaging water pipe clips, facilitating subsequent installation.

[0019] The beneficial effects of this utility model are: the structure splices and welds the left and right sections of the upper plate into a frame structure through the middle section of the upper plate and the upper reinforcing beam, and the middle section of the upper plate, the upper reinforcing beam, the left and right sections of the upper plate can be welded to the lower plate to form a box-shaped structure, thereby making the structure strong in torsion resistance, high in support strength and good in support stability. Attached Figure Description

[0020] Figure 1 This utility model is a stereoscopic view Figure 1 ;

[0021] Figure 2 This utility model is a stereoscopic view Figure 2 ;

[0022] Figure 3 This is a partial enlarged view of the steering gear mounting sleeve in this utility model;

[0023] Figure 4 This is an enlarged view of the left ram's horn part of this utility model.

[0024] In the attached diagram: 1. Lower plate; 2. Lower reinforcing beam; 3. Middle section of upper plate; 4. Left section of upper plate; 5. Right section of upper plate; 6. Left steering wheel fitting; 7. Right steering wheel fitting; 8. Upper reinforcing beam; 9. Water pipe bracket; 10. Lower slot; 30. End flange; 31. Suspension reinforcing plate; 32. Steering gear mounting sleeve; 33. Connecting groove; 40. Connecting notch; 41. Upper reinforcing plate; 42. Lower flange; 43. Rear mounting sleeve; 44. Upper slot; 60. Front steering wheel plate; 61. Rear steering wheel plate; 62. Steering wheel sealing plate; 63. Front mounting sleeve; 80. Outer edge; 81. Heat insulation plate bracket; 82. Exhaust hanger; 83. Hook bracket; 84. Groove; 90. Snap-fit ​​hole. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0028] Example 1, such as Figure 1-4 As shown, a front subframe structure for automobiles includes:

[0029] Lower plate 1, with a lower reinforcing beam 2 connected to its lower bottom;

[0030] Upper plate middle section 3, the upper plate middle section 3 is connected to the front middle of the lower plate 1 and forms a box structure;

[0031] The side panel is provided with an upper left section 4 and an upper right section 5, which are respectively connected to the left and right sides of the lower panel 1.

[0032] The ram's horn piece includes a left ram's horn piece 6 and a right ram's horn piece 7, which are respectively connected to the left section 4 and the right section 5 of the upper plate.

[0033] The lower plate 1 is connected to the rear end of an upper reinforcing beam 8. The upper reinforcing beam 8 has an outer extension edge 80 at both ends. The outer extension edge 80 at both ends is connected to the rear ends of the left section 4 and the right section 5 of the upper plate, respectively. The left end of the upper reinforcing beam 8 is provided with a heat insulation board bracket 81. The heat insulation board bracket 81 is a U-shaped piece. One end of the heat insulation board bracket 81 is connected to the outer extension edge 80, and the other end is connected to the left section 4 of the upper plate.

[0034] The upper end of the upper reinforcing beam 8 is connected to an exhaust hanger 82, which is an L-shaped pipe. The exhaust hanger 82 is connected to a hook bracket 83, which is a U-shaped piece. The top of the hook bracket 83 is provided with a groove 84, and the exhaust hanger 82 is embedded in the groove 84.

[0035] The upper plate middle section 3 has end flanges 30 at both ends, and the upper plate left section 4 and upper plate right section 5 have connecting notches 40 at their side ends, which are connected to the end flanges 30.

[0036] A suspension reinforcement plate 31 and a steering gear mounting sleeve 32 are connected between the middle section 3 of the upper plate and the lower plate 1. A connecting groove 33 is provided in the middle of the suspension reinforcement plate 31, and the steering gear mounting sleeve 32 is connected to the connecting groove 33.

[0037] The upper plate left section 4 and the upper plate right section 5 are respectively connected to the lower plate 1 by an upper reinforcing plate 41. The upper reinforcing plate 41 is L-shaped and has a lower flange 42 at its lower end, which is connected to the lower plate 1.

[0038] The tail ends of the left section 4 and the right section 5 of the upper plate are respectively connected to the rear mounting sleeve 43, which is connected to the lower plate 1.

[0039] Both the left ram's horn piece 6 and the right ram's horn piece 7 are composed of a front ram's horn plate 60 and a rear ram's horn plate 61 forming a box. The front ends of the left section 4 and the right section 5 of the upper plate are respectively provided with upper slots 44, and the front end of the lower plate 1 is provided with a lower slot 10. The upper slots 44 and the lower slots 10 are aligned. The box formed by the front ram's horn plate 60 and the rear ram's horn plate 61 is inserted into the upper slots 44 and the lower slots 10. The inner end of the box of the left ram's horn piece 6 and the right ram's horn piece 7 is connected to a ram's horn sealing plate 62. The top of the left ram's horn piece 6 and the right ram's horn piece 7 is connected to a front mounting sleeve 63.

[0040] Water pipe brackets 9 are connected to the upper surfaces of the middle section 3 and the right section 5 of the upper plate. The water pipe brackets 9 are U-shaped and have snap-fit ​​holes 90.

[0041] The principle of this utility model is as follows: Figure 1-4 As shown, the front subframe structure includes a lower plate 1, with a lower reinforcing beam 2 at its bottom. This lower reinforcing beam 2 is a channel-shaped structure and is welded to the lower plate 1. This structure improves the torsional resistance of the rear end of the lower plate 1, while also enhancing its support strength and stability. An upper plate middle section 3 is located at the upper center of the lower plate 1. This upper plate middle section 3 is a stamped part and is welded to the front center of the lower plate 1, forming a box structure. This box structure improves the support strength and torsional resistance of the front end of the lower plate 1, enhancing its stability. Additionally, side plates are located at both ends of the upper part of the lower plate 1. Each side plate includes a left upper plate section 4 and a right upper plate section 5. The left and right upper plate sections 4 and 5 are welded to the lower plate 1, forming a box structure. Left steering knuckle 6 and right steering knuckle 7 are welded to the front ends of the left section 4 and right section 5 of the upper plate, respectively. The left steering knuckle 6 and right steering knuckle 7 are welded to the box formed by the left section 4 and right section 5 of the upper plate and the lower plate 1, respectively. This structure can improve the connection stability and support strength of the left steering knuckle 6 and right steering knuckle 7, thereby improving the stability of the components installed on the front subframe structure.

[0042] The lower plate 1 is connected to an upper reinforcing beam 8 by welding at its rear end. The upper reinforcing beam 8 is a U-shaped structure with outer extensions 80 at both ends. The outer extensions 80 on both sides are connected to the tail ends of the left section 4 and the right section 5 of the upper plate, respectively, and the outer extensions 80 are positioned on the upper layer. This structure facilitates the welding of the upper reinforcing beam 8 to the left section 4 and the right section 5 of the upper plate. At the same time, a heat insulation plate bracket 81 is provided at the left end of the upper reinforcing beam. This bracket is a U-shaped component, with one bracket foot connected to the outer extension 80 by welding, and the other bracket foot connected to the tail end of the left section 4 of the upper plate. This structure can improve the strength of the lower plate 1. Meanwhile, the upper reinforcing beam 8 connects the left section 4 and the right section 5 of the upper plate, which can strengthen the left section 4 and the right section 5 of the upper plate and improve the strength and stability of the structure. At the same time, the heat insulation plate bracket 81 is welded together by this structure, which can also improve its welding firmness and ensure its strength and stability.

[0043] Among them, an exhaust hanger 82 is connected to the upper end of the upper reinforcing beam 8. The exhaust hanger 82 is an L-shaped tube. A hook bracket 83 is welded to the side wall of the tail end of the upper reinforcing beam 8. The hook bracket 83 is a U-shaped piece. A groove 84 is provided on the top of the hook bracket 83. The exhaust hanger 82 is inserted into the groove 84 and connected to the hook bracket 83 by welding. This structure can ensure the welding stability of the exhaust hanger 82 and ensure its strength and stability.

[0044] The upper plate has end flanges 30 at both ends of the middle section 3, and connecting notches 40 on the left section 4 and right section 5. The connecting notches 40 and the end flanges 30 are pressed together for easy welding connection. The middle section 3 can connect the left section 4 and right section 5, thereby reinforcing the left section 4 and right section 5 and improving the strength and stability of the structure.

[0045] A suspension reinforcing plate 31 is provided between the upper plate middle section 3 and the lower plate 1. The suspension reinforcing plate 31 can improve the stability of the box structure formed by the upper plate middle section 3 and the lower plate 1 and ensure its support strength. A connecting groove 33 is provided in the middle of the suspension reinforcing plate 31. The steering gear mounting sleeve 32 is placed in the connecting groove 33 and is inserted into the upper plate middle section 3. The end face of the steering gear mounting sleeve 32 contacts the lower plate 1 and is coaxially arranged with the opening on the lower plate 1. The setting of the steering gear mounting sleeve 32 can improve the installation stability of the steering gear.

[0046] The upper plate left section 4 and upper plate right section 5 are respectively welded to the upper reinforcing plate 41. The upper reinforcing plate 41 is L-shaped and has a lower flange 42 at its lower end. The lower flange 42 can be welded to the lower plate 1. The upper reinforcing plate 41 can improve the strength of the cavity formed by welding the upper plate left section 4 and upper plate right section 5 to the lower plate 1, thereby improving its support strength and anti-torsion effect, and ensuring its stability.

[0047] The upper plate has openings at the tail ends of the left section 4 and the right section 5. A rear mounting sleeve 43 is fitted into the openings and is welded to the lower plate 1. This structure can support the tail ends of the left section 4 and the right section 5 of the upper plate and improve their support strength.

[0048] The left ram's horn piece 6 and the right ram's horn piece 7 are both welded together to form a box body via a front ram's horn plate 60 and a rear ram's horn plate 61. This structure improves the strength of the left ram's horn piece 6 and the right ram's horn piece 7. Meanwhile, upper slots 44 are provided at the front ends of the left section 4 and the right section 5 of the upper plate, respectively. These upper slots 44 are coaxially aligned with the lower slots 10 provided at the front end of the lower plate 1. Together, they form a structure that facilitates the installation of the box body composed of the front ram's horn plate 60 and the rear ram's horn plate 61, thus ensuring the box body formed by the front ram's horn plate 60 and the rear ram's horn plate 61... The structure, which is inserted into the upper slot 44 and the lower slot 10, facilitates the welding connection strength of the left horn piece 6 and the right horn piece 7, and improves the stability during subsequent installation and suspension. At the same time, a horn sealing plate 62 is provided at the end of the box body formed by the front horn plate 60 and the rear horn plate 61, which can improve the support strength of the box body. A front mounting sleeve 63 is connected to the top of the left horn piece 6 and the right horn piece 7, which can further improve the support stability and support strength of the structure during subsequent installation and suspension.

[0049] Water pipe brackets 9 are welded to the middle section 3 and the right section 5 of the upper plate, respectively. The water pipe brackets 9 are provided with snap-fit ​​holes 90, which can be used to snap water pipe clips, facilitating subsequent installation.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A front subframe structure for automobiles, characterized in that, include: The lower plate (1) is connected to the lower bottom of the lower plate (1) by a lower reinforcing beam (2); The upper plate middle section (3) is connected to the front middle of the lower plate (1) and forms a box structure; Side plate, the side plate is provided with upper plate left section (4) and upper plate right section (5), the upper plate left section (4) and upper plate right section (5) are respectively connected to the left and right sides of the lower plate (1); The ram's horn piece is provided with a left ram's horn piece (6) and a right ram's horn piece (7), which are respectively connected to the left section (4) and the right section (5) of the upper plate.

2. The front subframe structure for automobiles according to claim 1, characterized in that, The lower plate (1) is connected to an upper reinforcing beam (8) at its rear end. The upper reinforcing beam (8) has an outer extension edge (80) at both ends. The outer extension edge (80) at both ends is connected to the rear ends of the left section (4) and the right section (5) of the upper plate, respectively. The left end of the upper reinforcing beam (8) is provided with a heat insulation board bracket (81). The heat insulation board bracket (81) is a U-shaped piece. One end of the heat insulation board bracket (81) is connected to the outer extension edge (80), and the other end is connected to the left section (4) of the upper plate.

3. The front subframe structure for automobiles according to claim 2, characterized in that, The upper end of the upper reinforcing beam (8) is connected to an exhaust hanger (82), which is an L-shaped pipe. The exhaust hanger (82) is connected to a hook bracket (83), which is a U-shaped piece. The top of the hook bracket (83) is provided with a groove (84), and the exhaust hanger (82) is embedded in the groove (84).

4. The front subframe structure for automobiles according to claim 1, characterized in that, The upper plate middle section (3) is provided with end flanges (30) at both ends, and the upper plate left section (4) and upper plate right section (5) are respectively provided with connecting notches (40), and the connecting notches (40) are connected to the end flanges (30).

5. The front subframe structure for automobiles according to claim 4, characterized in that, A suspension reinforcement plate (31) and a steering gear mounting sleeve (32) are connected between the middle section (3) of the upper plate and the lower plate (1). A connecting groove (33) is provided in the middle of the suspension reinforcement plate (31), and the steering gear mounting sleeve (32) is connected to the connecting groove (33).

6. The front subframe structure for automobiles according to claim 1, characterized in that, The upper plate left section (4) and upper plate right section (5) are respectively connected to the lower plate (1) by an upper reinforcing plate (41). The upper reinforcing plate (41) is L-shaped and has a lower flange (42) at the lower end. The lower flange (42) is connected to the lower plate (1).

7. The front subframe structure for automobiles according to claim 6, characterized in that, The tail ends of the left section (4) and right section (5) of the upper plate are respectively connected to the rear mounting sleeve (43), and the rear mounting sleeve (43) is connected to the lower plate (1).

8. The front subframe structure for automobiles according to claim 1, characterized in that, The left ram's horn piece (6) and the right ram's horn piece (7) are both composed of a front ram's horn plate (60) and a rear ram's horn plate (61) forming a box. The front ends of the left section (4) and the right section (5) of the upper plate are respectively provided with an upper slot (44), and the front end of the lower plate (1) is provided with a lower slot (10). The upper slot (44) and the lower slot (10) are aligned. The box composed of the front ram's horn plate (60) and the rear ram's horn plate (61) is inserted into the upper slot (44) and the lower slot (10). The inner end of the box of the left ram's horn piece (6) and the right ram's horn piece (7) is connected with a ram's horn sealing plate (62). The top of the left ram's horn piece (6) and the right ram's horn piece (7) is connected with a front mounting sleeve (63).

9. The front subframe structure for automobiles according to claim 1, characterized in that, Water pipe brackets (9) are connected to the upper surfaces of the middle section (3) and the right section (5) of the upper plate. The water pipe brackets (9) are U-shaped and have snap-fit ​​holes (90).

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