Rear auxiliary frame of hybrid electric vehicle chassis
By improving the upper bracket structure of the rear subframe and adding reinforcement seats and cross reinforcement frames, the problems of insufficient strength and low assembly efficiency of the existing rear subframe are solved, and higher assembly efficiency and mechanical strength are achieved.
Patent Information
- Application Number
- CN202421046841.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The strength of the existing rear subframe is insufficient, and there is a risk of missing parts, missing welding and welding changes during the assembly process, resulting in high overall costs and low assembly efficiency.
By changing the split structure to integrated structure, increase the shape of the convex bag, and install the enhanced seat and cross -enhanced frame on the front beam to enhance the strength of the parts and the overall mechanical pulling force.
The use of eccentric bolt pads is reduced, the number of parts assembly is reduced, the assembly efficiency is improved, the overall mechanical strength is enhanced, and the risk of leakage parts and welding changes is avoided.
Smart Images
Figure CN222388253U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of rear subframe assembly parts, in particular to a hybrid vehicle chassis rear subframe. Background Art
[0002] The subframe is a bracket that supports the front and rear axles and suspension. The subframe is divided into a front subframe and a rear subframe. At present, the left front upper bracket and the right front upper bracket on the rear subframe are conventional and simple, with smooth surface contours and low strength. A large number of eccentric bolts and gaskets are required during installation, so that the number of parts that make up the rear subframe assembly is too large. During the assembly process, it is easy to have risks such as missing parts, missing welding, and welding changes. The overall cost is high and the assembly efficiency is low. At the same time, after the traditional rear subframe assembly is assembled, there is a lack of a reinforced support structure. When the car goes uphill or downhill, turns, or is unevenly loaded, it will cause local overload of the frame and cause frame breakage, and the overall strength is limited. Utility Model Content
[0003] The utility model aims to provide a hybrid vehicle chassis rear subframe, which has the advantages of improving assembly speed and strength.
[0004] The above technical objectives of the utility model are achieved through the following technical solutions: a rear subframe of a hybrid vehicle chassis, comprising a front crossbeam, longitudinal beams are symmetrically welded on the front crossbeam, a rear beam is welded between the two longitudinal beams, an upper bracket is bolted between the front crossbeam and the longitudinal beam, a lower bracket is bolted between the front crossbeam and the longitudinal beam and on a side away from the upper bracket, reinforcement seats are symmetrically welded on the front crossbeam, through grooves are symmetrically opened on the rear beam, a cross reinforcement frame is arranged between the front crossbeam and the rear beam, and fixing bolts threadedly connected to the cross reinforcement frame are threadedly connected on the reinforcement seat and the rear beam.
[0005] By adopting the above technical scheme, the utility model changes the two upper brackets on the left and right from the original split structure to an integrated structure, and adds a convex shape to the original simple product. During installation, the eccentric bolt gasket can be reduced, the strength of the parts themselves can be enhanced, deformation can be reduced, the number of assembly parts assembled can be reduced, the risks of missing parts, missing welding and welding changes can be prevented, and the efficiency of assembly can be improved. A reinforcement seat is installed on the front cross beam, and a cross reinforcement frame is installed between the reinforcement seat and the rear beam. When the cross reinforcement frame is locked with the reinforcement seat and the rear beam through a fixing bolt, the mechanical pulling force between the front cross beam and the rear beam can be increased, and the welding points between the longitudinal beams and the front cross beams on both sides and the welding points between the longitudinal beams and the rear beams can be prevented from being separated due to force, thereby improving the overall mechanical strength.
[0006] The utility model is further configured as follows: a reinforcing plate bolted to the longitudinal beam is welded between the upper bracket and the lower bracket.
[0007] By adopting the above technical solution, the strength of the upper bracket and the lower bracket is improved.
[0008] The utility model is further configured as follows: a first lower cover plate bracket is bolted on the front cross beam and located between the two lower brackets.
[0009] The above technical solution is adopted to facilitate the installation of the lower cover.
[0010] The utility model is further configured as follows: a second lower cover plate bracket is bolted to opposite sides of the two longitudinal beams.
[0011] The above technical solution is adopted to facilitate the fixing and installation of the lower cover.
[0012] The utility model is further configured as follows: an exhaust pipe hook is bolted to a side of the rear beam away from the front cross beam.
[0013] The above technical solution is adopted to facilitate the fixing of the exhaust pipe.
[0014] The utility model is further configured as follows: sleeves are installed on both ends of the front cross beam and the longitudinal beam.
[0015] The adoption of the technical solution facilitates the installation and fixation of the front cross beam and the longitudinal beam.
[0016] The utility model is further configured as follows: one end of the fixing bolt penetrates through the other side of the connecting seat and is threadedly connected with a fixing nut.
[0017] By adopting the above technical solution, the fixing bolt is fixed and limited.
[0018] The utility model is further configured as follows: the reinforcement seat and the cross reinforcement frame are both made of aluminum alloy.
[0019] By adopting the above technical solution, the durability and lightness of the reinforcement seat and the cross reinforcement frame are improved.
[0020] In summary, the utility model has the following beneficial effects:
[0021] 1. The utility model changes the two upper brackets on the left and right from the original split structure to an integrated structure, and adds a convex shape to the original simple product. During installation, the eccentric bolt gasket can be reduced, the strength of the parts themselves can be enhanced, deformation can be reduced, the number of assembly parts can be reduced, the risk of missing parts, missing welding and welding changes can be prevented, and the efficiency of assembly can be improved;
[0022] 2. The utility model has a reinforcement seat installed on the front cross beam, and a cross reinforcement frame installed between the reinforcement seat and the rear beam. When the cross reinforcement frame is locked with the reinforcement seat and the rear beam through a fixing bolt, the mechanical pulling force between the front cross beam and the rear beam can be improved, and the welding points between the longitudinal beams on both sides and the front cross beam and the welding points between the longitudinal beams and the rear beam can be prevented from being separated due to force, thereby improving the overall mechanical strength. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0024] Figure 2 It is a schematic diagram of a local structural connection in the utility model.
[0025] Figure numerals: 1. front cross beam; 2. longitudinal beam; 3. rear beam; 4. upper bracket; 5. lower bracket; 6. reinforcement seat; 7. through groove; 8. cross reinforcement frame; 9. fixing bolt; 10. reinforcement plate; 11. first lower cover bracket; 12. second lower cover bracket; 13. exhaust pipe hook; 14. sleeve; 15. fixing nut. DETAILED DESCRIPTION
[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0027] Example 1: Reference Figure 1 A rear subframe of a hybrid vehicle chassis includes a front crossbeam 1, longitudinal beams 2 are symmetrically welded on the front crossbeam 1, a rear beam 3 is welded between the two longitudinal beams 2, an upper bracket 4 is bolted between the front crossbeam 1 and the longitudinal beam 2, and a lower bracket 5 is bolted between the front crossbeam 1 and the longitudinal beam 2 and on a side away from the upper bracket 4. By changing the two upper brackets 4 on the left and right from the original split structure to an integrated structure, and adding a convex shape to the original simple product, the eccentric bolt gasket can be reduced during installation, the strength of the parts themselves can be enhanced, deformation can be reduced, the number of assembly parts can be reduced, the risks of missing parts, missing welding and welding changes can be prevented, and the efficiency of assembly can be improved.
[0028] refer to Figure 1 A reinforcing plate 10 bolted to the longitudinal beam 2 is welded between the upper bracket 4 and the lower bracket 5. By providing the reinforcing plate 10, the strength of the upper bracket 4 and the lower bracket 5 is improved.
[0029] refer to Figure 1 A first lower cover bracket 11 is bolted on the front cross beam 1 and located between the two lower brackets 5. The first lower cover bracket 11 is provided to facilitate the installation of the lower cover.
[0030] refer to Figure 1 The second lower cover bracket 12 is bolted to the opposite side of the two longitudinal beams 2. By providing the second lower cover bracket 12, the fixed installation of the lower cover is facilitated.
[0031] refer to Figure 1 An exhaust pipe hook 13 is bolted to one side of the rear beam 3 away from the front cross beam 1. The exhaust pipe hook 13 is provided to facilitate the fixing of the exhaust pipe.
[0032] refer to Figure 1 , sleeves 14 are installed on both ends of the front cross beam 1 and the longitudinal beam 2. By setting the sleeves 14, the installation and fixation of the front cross beam 1 and the longitudinal beam 2 are facilitated.
[0033] Brief description of the usage process: by changing the two upper brackets 4 on the left and right from the original split structure to an integrated structure, and adding a convex shape to the original simple product, the eccentric bolt gasket can be reduced during installation, the strength of the parts themselves can be enhanced, deformation can be reduced, the number of assembly parts can be reduced, the risks of missing parts, missing welding and welding changes can be prevented, and the efficiency of assembly can be improved.
[0034] Example 2: Reference Figure 1 and Figure 2 A rear subframe of a hybrid vehicle chassis, a front cross beam 1 is symmetrically welded with a reinforcement seat 6, a rear beam 3 is symmetrically provided with a through groove 7, a cross reinforcement frame 8 is arranged between the front cross beam 1 and the rear beam 3, and a fixing bolt 9 threadedly connected to the cross reinforcement frame 8 is threadedly connected on the reinforcement seat 6 and the rear beam 3. By installing the reinforcement seat 6 on the front cross beam 1 and installing the cross reinforcement frame 8 between the reinforcement seat 6 and the rear beam 3, when the cross reinforcement frame 8 is locked with the reinforcement seat 6 and the rear beam 3 through the fixing bolt 9, the mechanical pulling force between the front cross beam 1 and the rear beam 3 can be increased, and the welding parts between the longitudinal beam 2 and the front cross beam 1 on both sides and the welding parts between the longitudinal beam 2 and the rear beam 3 on both sides are prevented from being separated due to force, thereby improving the overall mechanical strength.
[0035] refer to Figure 2 One end of the fixing bolt 9 passes through the other side of the connecting seat and is threadedly connected with a fixing nut 15. By setting the fixing nut 15, the fixing bolt 9 is fixed and limited.
[0036] refer to Figure 2 The reinforcement seat 6 and the cross reinforcement frame 8 are both made of aluminum alloy. By setting the reinforcement seat 6 and the cross reinforcement frame 8 to be made of aluminum alloy, the durability and lightness of the reinforcement seat 6 and the cross reinforcement frame 8 are improved.
[0037] Brief description of the use process: After a reinforcement seat 6 is installed on the front cross beam 1, a cross reinforcement frame 8 is installed between the reinforcement seat 6 and the rear beam 3. When the cross reinforcement frame 8 is locked with the reinforcement seat 6 and the rear beam 3 through the fixing bolt 9, the mechanical pulling force between the front cross beam 1 and the rear beam 3 can be increased to prevent the welding parts between the longitudinal beams 2 and the front cross beam 1 on both sides and the welding parts between the longitudinal beams 2 and the rear beam 3 from being separated due to force, thereby improving the overall mechanical strength.
[0038] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.
Claims
1. A rear subframe of a hybrid vehicle chassis, comprising a front crossbeam (1), characterized in that: The front cross beam (1) is symmetrically welded with longitudinal beams (2), a rear beam (3) is welded between the two longitudinal beams (2), an upper bracket (4) is bolted between the front cross beam (1) and the longitudinal beam (2), a lower bracket (5) is bolted between the front cross beam (1) and the longitudinal beam (2) and on a side away from the upper bracket (4), a reinforcement seat (6) is symmetrically welded on the front cross beam (1), a through groove (7) is symmetrically opened on the rear beam (3), a cross reinforcement frame (8) is arranged between the front cross beam (1) and the rear beam (3), and fixing bolts (9) threadedly connected to the cross reinforcement frame (8) are threadedly connected on the reinforcement seat (6) and the rear beam (3).
2. The hybrid vehicle chassis rear subframe according to claim 1, characterized in that: A reinforcing plate (10) bolted to the longitudinal beam (2) is welded between the upper bracket (4) and the lower bracket (5).
3. The hybrid vehicle chassis rear subframe according to claim 1, characterized in that: A first lower cover plate bracket (11) is bolted on the front cross beam (1) and located between the two lower brackets (5).
4. The hybrid vehicle chassis rear subframe according to claim 1, characterized in that: A second lower cover plate bracket (12) is bolted to opposite sides of the two longitudinal beams (2).
5. The hybrid vehicle chassis rear subframe according to claim 1, characterized in that: An exhaust pipe hook (13) is bolted to a side of the rear beam (3) away from the front cross beam (1).
6. The hybrid vehicle chassis rear subframe according to claim 1, characterized in that: Sleeves (14) are installed on both ends of the front cross beam (1) and the longitudinal beam (2).
7. The hybrid vehicle chassis rear subframe according to claim 1, characterized in that: One end of the fixing bolt (9) passes through the other side of the connecting seat and is threadedly connected to a fixing nut (15).
8. The hybrid vehicle chassis rear subframe according to claim 1, characterized in that: The reinforcement seat (6) and the cross reinforcement frame (8) are both made of aluminum alloy.