Plate spring mounting seat, vehicle chassis and automobile

Abstract

The utility model discloses a plate spring mounting seat, a vehicle chassis and an automobile, relates to the technical field of vehicle chassis, and is applied to the vehicle chassis, the vehicle chassis comprises a frame, a steering gear box support and a connecting piece connecting the frame and the steering gear box support, the plate spring mounting seat comprises a seat body used for mounting a plate spring; the side plate is connected with the surface, opposite to the steering gear box support, of the frame, an avoiding notch is formed in the side plate, and the avoiding notch is used for avoiding the connecting piece; and the adapter plate is connected with the seat body and the side plate. According to the technical scheme, the assembling flexibility of the vehicle chassis is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle chassis technology, and in particular to a leaf spring mounting seat, a vehicle chassis, and an automobile. Background Technology

[0002] Leaf spring mounts, as crucial load-bearing components in vehicle suspension systems, are typically fixed to the inner side of the vehicle frame. They mount and support leaf spring assemblies, serving to transfer loads and provide cushioning. Steering gear brackets, on the other hand, serve as the mounting base for the steering system and are usually located on the outer side of the vehicle frame to connect to the steering mechanism. Currently, the steering gear bracket is typically installed on the outer side of the frame first, followed by the leaf spring mount on the inner side. Attempting to adjust the installation sequence, i.e., installing the leaf spring mount on the inner side of the frame first, will cause spatial interference issues when installing the steering gear bracket later, negatively impacting the flexibility of the assembly process. Therefore, it is necessary to design a novel leaf spring mount structure to meet different assembly requirements. Utility Model Content

[0003] The main purpose of this utility model is to provide a leaf spring mounting seat, a vehicle chassis, and an automobile, aiming to improve the flexibility of vehicle chassis assembly.

[0004] To achieve the above objectives, this utility model provides a leaf spring mounting bracket for use in a vehicle chassis. The vehicle chassis includes a frame, a steering gear bracket, and a connector connecting the frame and the steering gear bracket. The leaf spring mounting bracket includes:

[0005] The base is used to mount the leaf spring;

[0006] A side panel, connected to the surface of the vehicle frame facing away from the steering gear bracket, the side panel having a clearance notch for accommodating the connector; and

[0007] An adapter plate connects the base and the side plate.

[0008] In one embodiment, the vehicle frame has a first mounting position, and the side plate has a second mounting position corresponding to the first mounting position; the leaf spring mounting seat further includes a locking member, which passes through the first mounting position and the second mounting position and connects and fixes the steering gear bracket and the side plate.

[0009] In one embodiment, the side plate has a first segment and a second segment along the length direction of the frame, the width of the second segment being smaller than the width of the first segment to form the clearance notch; the first segment is provided with a second mounting position, and the second mounting position and the clearance notch are arranged side by side along the length direction of the frame.

[0010] In one embodiment, the adapter plate includes a first sub-plate and a second sub-plate that are bent and connected. The end of the first sub-plate facing away from the second sub-plate is connected to the side plate, and the end of the second sub-plate facing away from the first sub-plate is connected to the base. The second sub-plate and the side plate are spaced apart to form a wire harness space.

[0011] In one embodiment, the seat includes a base plate and a support disposed on the surface of the base plate facing away from the adapter plate. The base plate is connected to the bottom surface of the frame. The second sub-plate is connected to the base plate and is offset relative to the center of the base plate. Two supports are provided, and the two supports are symmetrically arranged on opposite sides of the second sub-plate.

[0012] In one embodiment, the base plate is provided with a fixing position for mounting a cooling pipe support.

[0013] In one embodiment, the base plate has a fixed section and a suspended section. The fixed section is connected to the bottom surface of the frame, the support is connected to the surface of the fixed section facing away from the adapter plate, the second side plate is connected to the suspended section, and the extension length of the fixed section along the length direction of the frame is greater than the extension length of the suspended section along the length direction of the frame.

[0014] In one embodiment, the base, the side plate, and the adapter plate are integrally formed.

[0015] To achieve the above objectives, this utility model provides a vehicle chassis, which includes a frame and a leaf spring mounting seat and a steering gear bracket connected to the frame. The leaf spring mounting seat is the leaf spring mounting seat described above. The frame has an installation space, the leaf spring mounting seat is located in the installation space, and the steering gear bracket is located outside the installation space.

[0016] To achieve the above objectives, this utility model provides an automobile, which includes the vehicle chassis described above.

[0017] The technical solution of this application, through the setting of a seat body for mounting leaf springs, with side plates fixed to the vehicle frame, and an adapter plate providing support for the seat body, achieves the fixation of the leaf springs to the vehicle frame. Furthermore, a clearance notch is provided on the side plate to match the contour of the connecting parts (such as bolt heads and welded parts) of the steering gear bracket. When the leaf spring mounting seat is preferentially installed on the inner side of the vehicle frame, the clearance notch can accommodate the partial protrusions or extensions of the connecting parts, eliminating physical interference between the connecting parts and the side plate in the vertical and horizontal directions. This increases the freedom of the vehicle chassis installation sequence, allowing the leaf spring mounting seat to be installed first, followed by the steering gear bracket, meeting the reverse assembly requirements under special working conditions and improving the assembly flexibility of the vehicle chassis. It is understandable that the clearance notch on the side plate enables free switching of the assembly sequence, adapting to different vehicle layouts or production line process requirements, improving the flexibility of the entire assembly process, and thus increasing production efficiency. In addition, by removing the constraints of the installation sequence, the inner space of the frame can be occupied by the leaf spring mount earlier, freeing up the outer adjustment space of the frame for the layout of other chassis components (such as fuel tank and battery pack), enhancing the modularity and integration of the overall vehicle design, which is beneficial to the space optimization needs of new energy vehicles or special vehicles. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of an angle structure of an embodiment of the leaf spring mounting base of this utility model;

[0020] Figure 2 This is a schematic diagram of another angle of the embodiment of the leaf spring mounting base of this utility model;

[0021] Figure 3 This is a partial structural schematic diagram of an embodiment of the vehicle chassis of this utility model.

[0022] Explanation of icon numbers:

[0023] 100. Leaf spring mounting bracket; 110. Base body; 111. Base plate; 112. Support; 113. Fixing position; 120. Side plate; 121. Clearance notch; 122. Second mounting position; 130. Adapter plate; 131. First sub-plate; 132. Second sub-plate; 133. Wiring harness space; 140. Locking element; 200. Frame; 210. Mounting space; 300. Steering gear bracket; 400. Leaf spring.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the embodiments of the present utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, in the embodiments of this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of the embodiments of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0029] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by the embodiments of this utility model.

[0030] Leaf spring mounts, as crucial load-bearing components in vehicle suspension systems, are typically fixed to the inner side of the vehicle frame. They are used to mount and support leaf spring assemblies, serving to transfer loads and provide cushioning. Steering gear brackets, on the other hand, serve as the mounting base for the steering system and are usually located on the outer side of the vehicle frame to connect to the steering mechanism. To avoid spatial interference during installation, the standard assembly process requires that the steering gear bracket be installed on the outer side of the frame first, followed by the installation of the leaf spring mounts on the inner side.

[0031] However, when the assembly sequence of certain special models needs to be adjusted due to layout requirements, such as prioritizing the installation of the inner leaf spring mounting bracket, the connecting parts (such as bolts, reinforcing ribs, or welded bosses) of the leaf spring mounting bracket and the steering gear bracket overlap in space, causing rigid interference between them, which prevents the steering gear bracket from being installed in the intended position.

[0032] As can be seen from the above, the limitations of the assembly sequence result in insufficient flexibility in the assembly process during actual production. This is especially true when the chassis structure is compact or there are other auxiliary components that may interfere with the assembly process, leading to problems such as increased assembly time and complexity.

[0033] Therefore, how to improve the structure of the leaf spring mounting base to achieve compatibility with its installation sequence with the steering gear bracket has become a technical problem that urgently needs to be solved in this field.

[0034] In view of this, the present invention provides a leaf spring mounting base, a vehicle chassis, and an automobile. A clearance notch is provided on the side plate to match the contour of the connecting parts (such as bolt heads or welded parts) of the steering gear bracket. When the leaf spring mounting base is preferentially installed on the inner side of the vehicle frame, the clearance notch can accommodate the partial protrusions or extensions of the connecting parts, eliminating physical interference between the connecting parts and the side plate in the vertical and horizontal directions. This improves the freedom of the vehicle chassis installation sequence, allowing the leaf spring mounting base to be installed first, followed by the steering gear bracket, meeting the reverse assembly requirements under special working conditions and improving the assembly flexibility of the vehicle chassis.

[0035] To better understand the above technical solution, the following detailed explanation is provided in conjunction with the accompanying drawings.

[0036] like Figures 1 to 3 As shown, this utility model embodiment proposes a leaf spring mounting base 100, applied to a vehicle chassis. The vehicle chassis includes a frame 200, a steering gear bracket 300, and a connecting member connecting the frame 200 and the steering gear bracket 300. The leaf spring mounting base 100 includes:

[0037] The base 110 is used to mount the leaf spring 400;

[0038] Side plate 120 is connected to the surface of the frame 200 facing away from the steering gear bracket 300. Side plate 120 has a clearance notch 121 for accommodating the connecting member.

[0039] The adapter plate 130 connects the base 110 and the side plate 120.

[0040] In the technical solution adopted in this embodiment, the seat 110 is used to install the leaf spring 400, the side plate 120 is fixed to the frame 200, and the adapter plate 130 provides support for the seat 110, thereby fixing the leaf spring 400 to the frame 200. Moreover, the side plate 120 is provided with a clearance notch 121 that matches the contour of the connecting parts (such as bolt heads and welded parts) of the steering gear bracket 300. When the leaf spring mounting seat 100 is preferentially installed inside the frame 200, the clearance notch 121 can accommodate the partial protrusions or extensions of the connecting parts, eliminating the physical interference between the connecting parts and the side plate 120 in the vertical and horizontal directions. This improves the freedom of the vehicle chassis installation sequence, allowing the leaf spring mounting seat 100 to be installed first and then the steering gear bracket 300, meeting the reverse assembly requirements under special working conditions and improving the assembly flexibility of the vehicle chassis. Understandably, the clearance notch 121 on the side plate 120 allows for flexible switching of the assembly sequence, adapting to different vehicle layouts or production line process requirements, thus improving the flexibility of the entire assembly process and consequently increasing production efficiency. Furthermore, by removing the constraints of the installation sequence, the inner space of the frame 200 can be occupied by the leaf spring mount 100 earlier, freeing up outer adjustment space for the layout of other chassis components (such as the fuel tank and battery pack). This enhances the modularity and integration of the overall vehicle design, which is beneficial for the space optimization needs of new energy vehicles or special vehicles.

[0041] In one embodiment of this utility model, reference is made to Figure 1 The frame 200 is provided with a first mounting position, and the side plate 120 is provided with a second mounting position 122 corresponding to the first mounting position; the leaf spring mounting seat 100 also includes a locking member 140, which passes through the first mounting position and the second mounting position 122 and connects and fixes the steering gear bracket 300 and the side plate 120.

[0042] Specifically, the frame 200 has a first mounting position, and the side plate 120 has a second mounting position 122. Both the first and second mounting positions 122 are mounting holes, aligned with each other, and locked together by a locking member 140. It is understood that the locking member 140 (e.g., a high-strength bolt) directly connects the steering gear bracket 300 and the leaf spring mounting seat 100 in series, forming a common connection node for the leaf spring mounting seat 100, the frame 200, and the steering gear bracket 300. This effectively shortens the load transmission path, enhances the shear and tensile strength of the connection point, and reduces the risk of loosening due to vibration. Furthermore, by using a single locking member 140 to simultaneously fasten the steering gear bracket 300 and the leaf spring mounting seat 100, the number of locking operation steps is reduced, shortening assembly time; the amount of bolts / nuts used is also reduced, achieving lightweighting and material cost savings. It is understood that the locking member 140 in this embodiment can be a bolt or rivet, etc., and is not limited thereto. Optionally, a third mounting position can be provided on the frame 200, and a fourth mounting position can be provided on the side panel 120. Multiple second mounting positions 122 can be provided at intervals, with at least one of the multiple second mounting positions 122 corresponding to a first mounting position. Thus, there are multiple second mounting positions 122 that do not correspond to a first mounting position.

[0043] In one embodiment of this utility model, the side plate 120 has a first segment and a second segment along the length direction of the frame 200. The width of the second segment is smaller than the width of the first segment to form the clearance notch 121. The first segment has a second mounting position 122, and the second mounting position 122 and the clearance notch 121 are arranged side by side along the length direction of the frame 200. That is, in the height direction of the frame 200, the width of the first segment is greater than the width of the second segment, thereby forming the clearance notch 121 above or below the second segment, allowing the connector to pass through and ensuring the normal installation of the steering gear bracket 300. Optionally, the first segment can be located at one end of the second segment, with the first segment and the second segment forming the clearance notch 121. Of course, the first segment can also be located at both ends of the second segment, with the second segment and the two first segments forming the clearance notch 121.

[0044] In one embodiment of this utility model, reference is made to Figure 1The adapter plate 130 includes a first sub-plate 131 and a second sub-plate 132 connected by bending. The end of the first sub-plate 131 facing away from the second sub-plate 132 is connected to the side plate 120, and the end of the second sub-plate 132 facing away from the first sub-plate 131 is connected to the base 110. The second sub-plate 132 and the side plate 120 are spaced apart to form a wiring harness space 133. It can be understood that one end of the first sub-plate 131 is connected to the side plate 120 and extends along the width direction of the frame 200, and one end of the second sub-plate 132 is connected to the end of the first sub-plate 131 facing away from the side plate 120, and the second sub-plate 132 extends along the height direction of the frame 200. In this way, the second sub-plate 132 and the side plate 120 are spaced apart, and a wiring harness space 133 is formed between them, which can facilitate the passage of wiring harnesses, pipes, etc., and improve the convenience of pipeline layout. Optionally, the first sub-plate 131 and the second sub-plate 132 are integrally bent to improve structural strength.

[0045] In one embodiment of this utility model, reference is made to Figure 1 and Figure 2 The base 110 includes a base plate 111 and a support 112 disposed on the surface of the base plate 111 facing away from the adapter plate 130. The base plate 111 is connected to the bottom surface of the frame 200. The second sub-plate 132 is connected to the base plate 111 and is offset from the center of the base plate 111. Two supports 112 are provided, symmetrically arranged on opposite sides of the second sub-plate 132. Specifically, the base plate 111 is directly connected to the bottom surface of the frame 200, forming a large-area contact support surface, which can evenly distribute the concentrated load transmitted by the leaf spring 400 to the bottom surface of the frame 200, reducing the risk of local plastic deformation of the frame 200 due to point load, and improving the overall load-bearing capacity of the frame 200 and the leaf spring mounting seat 100. Moreover, the center offset of the second sub-plate 132 relative to the base plate 111 can better reserve space for the installation of chassis pipelines, sensors and other auxiliary equipment, and prevent installation interference; it can also better adapt to the action point of the leaf spring 400, optimize the torque transmission path, and further enhance the structural reliability.

[0046] In one embodiment of this utility model, reference is made to Figure 1 The base plate 111 is provided with a fixing position 113 for mounting a cooling pipe bracket. Automobiles typically have a heat dissipation and cooling system. To facilitate the installation of the cooling pipes of this system, a fixing position 113 is provided on the base plate 111. The cooling pipes can be installed and secured via the fixing position 113. Optionally, the fixing position 113 may be a mounting hole.

[0047] In one embodiment of this utility model, the base plate 111 has a fixed section and a suspended section. The fixed section is connected to the bottom surface of the frame 200, the support 112 is connected to the surface of the fixed section facing away from the adapter plate 130, and the second side plate 120 is connected to the suspended section. The extension length of the fixed section along the length direction of the frame 200 is greater than the extension length of the suspended section along the length direction of the frame 200. Thus, one side of the suspended section can form an assembly clearance space, facilitating the operator to reach in tools and assemble and install other components inside the frame 200.

[0048] In one embodiment of this utility model, the base 110, the side plate 120, and the adapter plate 130 are integrally formed, which can improve the overall strength of the structure, prevent cracking or breakage, and extend the service life.

[0049] To achieve the above objectives, this utility model provides a vehicle chassis, referring to... Figure 3 The vehicle chassis includes a frame 200 and a leaf spring mounting seat 100 and a steering gear bracket 300 connected to the frame 200. The leaf spring mounting seat 100 is the same as described above. The frame 200 has an installation space 210, and the leaf spring mounting seat 100 is located in the installation space 210. The steering gear bracket 300 is located outside the installation space 210. Specifically, the specific structure of the leaf spring mounting seat 100 refers to the above embodiment. Since this vehicle chassis adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here.

[0050] To achieve the above objectives, this utility model provides an automobile, which includes the vehicle chassis described above. Specifically, the specific structure of the vehicle chassis refers to the above embodiments. Since this automobile adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0051] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model embodiments. Any equivalent structural transformations made under the technical concept of the present utility model using the description and drawings of the present utility model embodiments, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model embodiments.

Claims

1. A leaf spring mounting bracket, applied to a vehicle chassis, the vehicle chassis including a frame, a steering gear bracket, and a connector connecting the frame and the steering gear bracket, characterized in that, The leaf spring mounting base includes: The base is used to mount the leaf spring; A side panel, connected to the surface of the vehicle frame facing away from the steering gear bracket, the side panel having a clearance notch for accommodating the connector; and An adapter plate connects the base and the side plate.

2. The leaf spring mounting base as described in claim 1, characterized in that, The vehicle frame is provided with a first mounting position, and the side plate is provided with a second mounting position corresponding to the first mounting position; the leaf spring mounting seat also includes a locking member, which passes through the first mounting position and the second mounting position and connects and fixes the steering gear bracket and the side plate.

3. The leaf spring mounting base as described in claim 2, characterized in that, The side plate has a first section and a second section along the length of the frame, the width of the second section being smaller than the width of the first section to form the clearance notch; the first section is provided with a second mounting position, and the second mounting position and the clearance notch are arranged side by side along the length of the frame.

4. The leaf spring mounting base as described in claim 1, characterized in that, The adapter plate includes a first sub-plate and a second sub-plate that are bent and connected. The end of the first sub-plate facing away from the second sub-plate is connected to the side plate, and the end of the second sub-plate facing away from the first sub-plate is connected to the base. The second sub-plate and the side plate are spaced apart to form a wire harness space.

5. The leaf spring mounting base as described in claim 4, characterized in that, The seat includes a base plate and a support on the surface of the base plate facing away from the adapter plate. The base plate is connected to the bottom surface of the frame. The second sub-plate is connected to the base plate and is offset relative to the center of the base plate. There are two supports, which are symmetrically arranged on opposite sides of the second sub-plate.

6. The leaf spring mounting base as described in claim 5, characterized in that, The base plate is provided with a fixing position for installing a cooling pipe support.

7. The leaf spring mounting base as described in claim 6, characterized in that, The base plate has a fixed section and a suspended section. The fixed section is connected to the bottom surface of the frame. The support is connected to the surface of the fixed section facing away from the adapter plate. The second sub-plate is connected to the suspended section. The extension length of the fixed section along the length direction of the frame is greater than the extension length of the suspended section along the length direction of the frame.

8. The leaf spring mounting base as described in any one of claims 1 to 7, characterized in that, The base, the side plate, and the adapter plate are integrally formed.

9. A vehicle chassis, characterized in that, The vehicle chassis includes a frame and a leaf spring mounting seat and a steering gear bracket connected to the frame. The leaf spring mounting seat is a leaf spring mounting seat as described in any one of claims 1 to 8. The frame has an installation space, the leaf spring mounting seat is located in the installation space, and the steering gear bracket is located outside the installation space.

10. A car, characterized in that, The vehicle includes the vehicle chassis as described in claim 9.

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