Damping suspension equipment for new energy automobile

Abstract

The utility model belongs to the technical field of automobile parts, and discloses damping suspension equipment for a new energy automobile, the damping suspension equipment for the new energy automobile comprises swing arm fixing suspension frames which are symmetrically arranged, and one side of each swing arm fixing suspension frame is rotatably connected with a lower sleeving swing arm frame and an upper sleeving swing arm frame; the four-connecting-rod mechanism uniformly disperses road surface impact, reduces stress concentration, improves suspension durability, improves buffering capacity and riding comfort through the hinged design of the damping suspension and the adjusting supporting sleeve, achieves stepless adjustment of the suspension height through hydraulic drive, rapidly adapts to different road conditions, and guarantees stable and accurate adjustment through cooperation of the T-shaped screw, the adjusting groove and the limiting guide rod. The supporting clamping rod, the clamping groove, the L-shaped guide rod and the like form a locking mechanism, the spring provides elastic reset force, the hanging height is locked in a high-precision mode, vibration is effectively resisted, and looseness is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a shock-absorbing suspension device for new energy vehicles. Background Technology

[0002] Currently, electric vehicles refer to vehicles that are powered by onboard power sources and drive the wheels with electric motors, meeting all requirements of road traffic and safety regulations. Due to their relatively smaller environmental impact compared to traditional cars, their prospects are widely regarded as promising. Shock absorption suspension is an indispensable component of electric vehicles. Simply put, the car suspension system refers to the entire support system composed of springs and shock absorbers between the car body and the tires. The function of the suspension system is to support the car body and improve the ride comfort. Different suspension settings will give the driver different driving experiences.

[0003] Chinese utility model patent with publication number CN114523812A discloses a shock-absorbing suspension device for new energy vehicles. Through the cooperation between structures, it achieves the effect of dynamically adjusting the shock absorption degree of the shock-absorbing suspension mechanism. When driving on different road surfaces, the shock absorption degree of the shock-absorbing suspension is adjusted to adapt to different road surfaces, thereby improving the stability of the vehicle body and thus improving the comfort of passengers.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: Most of the aforementioned shock-absorbing suspension devices adopt a fixed structure design, and the suspension height is determined when the vehicle leaves the factory. It cannot be flexibly adjusted according to actual usage needs. When the vehicle is fully loaded with goods or carries multiple passengers, the vehicle weight increases, and traditional shock-absorbing suspension devices cannot maintain a reasonable ground clearance. This not only easily causes chassis scraping but also affects the vehicle's passability and driving safety. When the vehicle is unloaded, the suspension height cannot be lowered, resulting in a high center of gravity, poor driving stability, increased wind resistance, and unnecessary energy waste. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides a shock-absorbing suspension device for new energy vehicles. It utilizes a four-bar linkage to evenly distribute road impacts, reducing stress concentration and improving suspension durability. The hinged design between the shock-absorbing suspension and the adjusting bushing enhances buffering capacity and improves ride comfort. Hydraulic drive enables stepless adjustment of suspension height, quickly adapting to different road conditions. The T-shaped screw, adjusting groove, and limiting guide rod work together to ensure smooth and precise adjustment, balancing passability and stability. The support rod, groove, and L-shaped guide rod constitute a locking mechanism, with a spring providing elastic restoring force to precisely lock the suspension height, effectively resisting vibration and preventing loosening.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a shock-absorbing suspension device for new energy vehicles, including symmetrically arranged swing arm fixed suspension frames, one side of which is rotatably connected to a lower sleeve swing arm frame and an upper sleeve swing arm frame, and the same side of the lower sleeve swing arm frame and the upper sleeve swing arm frame are rotatably connected through the same swing arm frame connecting sleeve.

[0007] An adjusting support is provided on the outer side of the top of the swing arm fixed suspension frame. A shock-absorbing suspension is hinged to one side of the lower swing arm frame. The other end of the shock-absorbing suspension is hinged to the adjusting support. The same fixed plate is fixed between the two swing arm fixed suspension frames. A hydraulic rod is fixed on the surface of the fixed plate. One end of the hydraulic rod is connected to the adjusting support.

[0008] By adopting the above technical solution, the lower and upper connecting swing arms are linked through the swing arm connecting sleeve to form a four-bar linkage mechanism, which improves the suspension system's ability to disperse road impacts, reduces single-point stress concentration, and the hydraulic rod directly drives the adjusting sleeve to achieve stepless adjustment of the suspension height. The adjusting sleeve is hinged to the shock-absorbing suspension to form a lever arm amplification effect, which can generate a larger adjustment torque under the same hydraulic driving force.

[0009] Furthermore, a T-shaped fixing screw is fixed to the surface of the adjusting support, and an adjusting groove adapted to the T-shaped fixing screw is opened on the surface of the swing arm fixed suspension frame. One end of the T-shaped fixing screw is slidably connected in the adjusting groove.

[0010] By adopting the above technical solution, the T-shaped fixing screw slides in the adjustment groove to realize the suspension height adjustment. The T-shaped structure at the screw head provides double limit, which restricts the swing of the adjustment sleeve in the horizontal direction and bears the vehicle load in the vertical direction.

[0011] Furthermore, a T-shaped limiting guide rod is slidably connected inside the through hole opened on the surface of the fixed plate, and one end of the T-shaped limiting guide rod is fixedly installed on the top and bottom surfaces of the adjusting support.

[0012] By adopting the above technical solution, the T-shaped limiting guide rod and the through hole of the fixed plate cooperate to form a two-stage guiding system, which makes the movement of the adjusting support more precise, and the T-shaped design of the guide rod head prevents the risk of derailment.

[0013] Furthermore, a hinge block is fixedly installed on one side of the adjusting support sleeve, and a support rod is hinged to the surface of the hinge block. A fixing sleeve is installed on the surface of the fixing plate below the support rod, and multiple slots are evenly spaced on the surface of the fixing sleeve.

[0014] By adopting the above technical solution and using multiple sets of evenly distributed slots, high-precision height locking can be achieved.

[0015] Furthermore, an L-shaped guide rod is fixedly installed on the inner wall of the fixed sleeve. One end of the L-shaped guide rod is fixedly installed on the surface of the fixed plate. A movable block is slidably connected to the surface of the L-shaped guide rod, and multiple insert blocks are fixed at equal intervals on the surface of the movable block.

[0016] By adopting the above technical solution, one end of the L-shaped guide rod is fixed to the fixed plate, providing precise guidance for the moving block, so that it can only slide along the trajectory of the L-shaped guide rod, ensuring the stability and accuracy of the moving block's movement, and preventing it from deviating or shaking during the movement. The moving block slides on the L-shaped guide rod, driving the equally spaced fixed inserts on its surface to move synchronously, which allows the inserts to accurately insert into or disengage from the slots on the fixed sleeve, realizing the locking and unlocking functions of components such as the support rod, and ensuring reliable positioning after the suspension height is adjusted.

[0017] Furthermore, one end of the support rod is rotatably connected to a rotating shaft, one end of the rotating shaft is fixed with a sliding sleeve, the bottom surface of the sliding sleeve is fixed with a hinged limiting sleeve, a sliding column is hinged inside the hinged limiting sleeve, and an L-shaped guide groove adapted to the sliding column is opened on the surface of the moving block.

[0018] By adopting the above technical solution, as the adjusting sleeve moves, the hinge block drives the support rod to move, the shaft at one end of the support rod rotates, the sliding sleeve slides on the guide plate surface, and the sliding column slides in the L-shaped guide groove. When the sliding column slides in the L-shaped guide groove, it pushes the moving block to slide on the L-shaped guide rod, compressing the spring and causing the insert to gradually disengage from the slot. When the support rod moves to the appropriate position, it cooperates with the multiple slots opened on the surface of the fixed sleeve, so that when the suspension height is raised to different required positions, the support rod can be locked in the corresponding slot, thereby fixing the suspension height.

[0019] Furthermore, a guide plate is fixedly installed on the surface of the fixed plate, and a sliding sleeve is slidably connected to the surface of the guide plate.

[0020] By adopting the above technical solution, the guide plate provides a clear guiding path for the movement of the sliding sleeve, ensuring that the sliding sleeve can only slide along a specific direction on the surface of the guide plate, avoiding swaying or displacement caused by excessive freedom, thereby ensuring the linkage stability between the support rod and the fixed sleeve.

[0021] Furthermore, a spring is fitted onto the outer surface of the L-shaped guide rod, with one end of the spring abutting against one side surface of the moving block.

[0022] By adopting the above technical solution, the elastic potential energy of spring one can push the moving block to slide and reset along the L-shaped guide rod, so that the insert block can automatically enter or leave the slot of the fixed sleeve.

[0023] Furthermore, in the initial state, multiple inserts are inserted one-to-one into the slots opened on the surface of the fixing sleeve, making the surface of the fixing sleeve smooth.

[0024] By adopting the above technical solution, the retraction of the piston end of the hydraulic rod can be controlled. At this time, the locking end of the support rod can slide smoothly to one side on the surface of the fixed sleeve. Meanwhile, the sliding column rotatably connected in the hinged limiting sleeve can contact the surface of the moving block, causing the sliding column to deflect and ensuring the reset of the support rod.

[0025] In summary, this utility model has the following beneficial effects:

[0026] 1. In this application, the upper and lower connecting arms form a four-bar linkage via the connecting sleeve. Compared to traditional suspension structures, this can more evenly distribute road impacts, significantly reduce single-point stress concentration on the fixed suspension frame, and effectively improve the durability of the suspension system. Simultaneously, the articulated design of the shock absorber suspension and adjusting bushing utilizes the lever arm amplification effect to enhance the buffering capacity against vehicle vibrations, greatly improving passenger comfort.

[0027] 2. In this application, the hydraulic rod directly drives the adjusting sleeve to achieve stepless adjustment of the suspension height, which can quickly respond to different road conditions and driving needs. The cooperation between the T-shaped fixing screw and the adjusting groove, together with the T-shaped limiting guide rod and the fixing plate to form a dual guiding system, not only limits the swing of the adjusting sleeve, but also ensures its movement accuracy, so that the height adjustment process is smooth and precise, and meets the vehicle's flexible switching between passability and stability.

[0028] 3. In this application, the combination of the support rod, the fixing sleeve, and the slot, along with the locking mechanism consisting of the L-shaped guide rod, the moving block, and the insert block, achieves high-precision suspension height locking. The elastic restoring force provided by the spring ensures that the insert block and the slot are tightly engaged, effectively resisting vibrations during vehicle operation and preventing the adjusted suspension height from loosening. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0030] Figure 2 This is an embodiment of the present utility model. Figure 1 A schematic diagram of the structure viewed from below;

[0031] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0032] Figure 4 This is a schematic diagram of the structure of the T-shaped fixing screw in an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the adjusting groove in an embodiment of this utility model;

[0034] Figure 6This is a schematic diagram of the structure of the fixing plate in an embodiment of the present invention;

[0035] Figure 7 This is a structural schematic diagram of an embodiment of the present invention to highlight the card slot and guide plate;

[0036] Figure 8 This is a schematic diagram of the structure of the insert block and the L-shaped guide groove in an embodiment of the present invention.

[0037] In the diagram: 1. Swing arm fixed suspension frame; 2. Lower sleeve swing arm frame; 3. Upper sleeve swing arm frame; 4. Swing arm frame connecting sleeve; 5. Shock-absorbing suspension; 6. Adjusting support sleeve; 7. T-shaped fixing screw; 8. Adjusting groove; 9. Fixing plate; 10. Hydraulic rod; 11. Fixing sleeve; 12. Slot; 13. Hinge block; 14. Support rod; 15. Guide plate; 16. Moving block; 17. Spring 1; 18. L-shaped guide rod; 19. L-shaped guide groove; 20. Insert block; 21. Sliding sleeve; 22. Rotating shaft; 23. Hinge limiting sleeve; 24. Sliding column; 25. T-shaped limiting guide rod. Detailed Implementation

[0038] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0039] like Figure 1-8 As shown in the embodiment of this application, a shock-absorbing suspension device for new energy vehicles is disclosed, including a symmetrically arranged swing arm fixed suspension frame 1. A lower sleeve swing arm frame 2 and an upper sleeve swing arm frame 3 are rotatably connected to one side of the swing arm fixed suspension frame 1. The lower sleeve swing arm frame 2 and the upper sleeve swing arm frame 3 are rotatably connected to the same side through the same swing arm frame connecting sleeve 4.

[0040] An adjusting sleeve 6 is provided on the outer side of the top of the swing arm fixed suspension frame 1. A shock-absorbing suspension 5 is hinged to one side of the lower swing arm frame 2. The other end of the shock-absorbing suspension 5 is hinged to the adjusting sleeve 6. The same fixing plate 9 is fixed between the two swing arm fixed suspension frames 1. A hydraulic rod 10 is fixed on the surface of the fixing plate 9. One end of the hydraulic rod 10 is connected to the adjusting sleeve 6.

[0041] Specifically, a T-shaped fixing screw 7 is fixed on the surface of the adjusting sleeve 6, and an adjusting groove 8 adapted to the T-shaped fixing screw 7 is opened on the surface of the swing arm fixing suspension frame 1. One end of the T-shaped fixing screw 7 is slidably connected in the adjusting groove 8.

[0042] Specifically, a T-shaped limiting guide rod 25 is slidably connected in the through hole opened on the surface of the fixing plate 9. One end of the T-shaped limiting guide rod 25 passes through the fixing plate 9 and is fixedly installed on the top and bottom surface of the adjusting support sleeve 6.

[0043] Specifically, a hinge block 13 is fixedly installed on one side of the adjusting support sleeve 6, and a support rod 14 is hinged to the surface of the hinge block 13. A fixing sleeve 11 is installed on the surface of the fixing plate 9 and below the support rod 14. Multiple slots 12 are evenly spaced on the surface of the fixing sleeve 11.

[0044] Specifically, an L-shaped guide rod 18 is fixedly installed on the inner wall of the fixed sleeve 11. One end of the L-shaped guide rod 18 is fixedly installed on the surface of the fixed plate 9. A movable block 16 is slidably connected to the surface of the L-shaped guide rod 18. Multiple insert blocks 20 are fixed at equal intervals on the surface of the movable block 16.

[0045] Specifically, one end of the support rod 14 is rotatably connected to a rotating shaft 22, one end of the rotating shaft 22 is fixed with a sliding sleeve 21, the bottom surface of the sliding sleeve 21 is fixed with a hinged limiting sleeve 23, a sliding column 24 is hinged inside the hinged limiting sleeve 23, and an L-shaped guide groove 19 adapted to the sliding column 24 is opened on the surface of the moving block 16.

[0046] Specifically, a guide plate 15 is fixedly installed on the surface of the fixed plate 9, and a sliding sleeve 21 is slidably connected to the surface of the guide plate 15.

[0047] Specifically, a spring 17 is fitted on the outer surface of the L-shaped guide rod 18, and one end of the spring 17 abuts against one side surface of the moving block 16.

[0048] Specifically, in the initial state, multiple inserts 20 are inserted one-to-one into the slots 12 opened on the surface of the fixing sleeve 11, making the surface of the fixing sleeve 11 smooth.

[0049] The working principle of a shock-absorbing suspension device for new energy vehicles in this embodiment is as follows: First, the swing arm fixed suspension frame 1 is installed on the corresponding position of the new energy vehicle body and the wheel through a suitable method such as bolt connection. The connection point between the body and the swing arm fixed suspension frame 1, and the connection point of the wheel and the lower sleeve swing arm frame 2 and the upper sleeve swing arm frame 3 after connection are all precisely designed and positioned to ensure that the suspension system is installed stably. At this time, the T-shaped fixing screw 7 is located in the initial position in the adjustment groove 8, and multiple inserts 20 are inserted one by one into the slots 12 opened on the surface of the fixing sleeve 11. The surface of the fixing sleeve 11 is smooth, and the support rod 14 is in a stable initial support state.

[0050] When a new energy vehicle is driving on a bumpy road, the wheels are impacted by the uneven ground. The lower sleeve swing arm 2 and the upper sleeve swing arm 3 will swing around the rotation connection point with the swing arm fixed suspension 1. This swinging will drive the swing arm connecting sleeve 4 to move, and at the same time cause the shock absorber suspension 5 to undergo compression or tension deformation in order to maintain the overall structure and shock absorption performance of the suspension system.

[0051] When it is necessary to adjust the suspension height, such as when the vehicle is driving on different road conditions and the ground clearance needs to be changed to improve passability or stability, the hydraulic rod 10 is activated. When the hydraulic rod 10 extends or shortens, it pushes the adjusting sleeve 6 to move. When the adjusting sleeve 6 moves, the T-shaped fixing screw 7 slides in the adjusting groove 8, and at the same time, the T-shaped limiting guide rod 25 slides in the through hole opened on the surface of the fixing plate 9, which plays a guiding and limiting role, ensuring that the adjusting sleeve 6 moves smoothly. As the adjusting sleeve 6 moves, the hinge block 13 drives the support rod 14 to move. The rotating shaft 22 at one end of the support rod 14 rotates, the sliding sleeve 21 slides on the surface of the guide plate 15, and the sliding column 24 slides in the L-shaped guide groove 19. When the sliding column 24 slides in the L-shaped guide groove 19, it pushes the moving block 16 to slide on the L-shaped guide rod 18, compressing the spring 17, so that the insert 20 gradually disengages from the slot 12. When the support rod 14 moves to the appropriate position, it cooperates with the multiple slots 12 opened on the surface of the fixing sleeve 11, so that when the suspension height is raised to different required positions, the support rod 14 can be locked in the corresponding slot 12, thereby fixing the suspension height.

[0052] During reset, the piston end of the hydraulic rod 10 extends to its limit position, thereby causing the support rod 14 to slide out from the surface of the last slot 12. At the same time, the slide column 24 slides out from the L-shaped guide groove 19. At this time, the slide column 24 no longer applies a lateral thrust to the moving block 16. Instead, the compressed spring 17, under its own elasticity, can push the moving block 16 to slide in the opposite direction into the fixed sleeve 11. At this time, the multiple inserts 20 on the surface of the moving block 16 are inserted into the slots 12 on the surface of the fixed sleeve 11, making the surface of the fixed sleeve 11 flat. At this time, the retraction of the piston end of the hydraulic rod 10 can be controlled. At this time, the locking end of the support rod 14 can slide smoothly to one side and reset on the surface of the fixed sleeve 11. At this time, the slide column 24, which is rotatably connected in the hinge limit sleeve 23, can contact the surface of the moving block 16, causing the slide column 24 to deflect and ensuring the reset of the support rod 14.

[0053] When the vehicle needs to pass over a high obstacle, the hydraulic rod 10 extends, the adjusting sleeve 6 moves upward, raising the suspension height and increasing the ground clearance; when the vehicle is traveling on a flat highway, in order to reduce wind resistance and improve stability, the hydraulic rod 10 shortens, the adjusting sleeve 6 moves downward, and the suspension height is lowered.

[0054] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A shock-absorbing suspension device for new energy vehicles, characterized in that: It includes a symmetrically arranged swing arm fixed suspension frame (1), on one side of the swing arm fixed suspension frame (1) is a lower sleeve swing arm frame (2) and an upper sleeve swing arm frame (3), and the same side of the lower sleeve swing arm frame (2) and the upper sleeve swing arm frame (3) are rotatably connected by the same swing arm frame connecting sleeve (4). An adjusting sleeve (6) is provided on the outer side of the top of the swing arm fixed suspension frame (1). A shock-absorbing suspension (5) is hinged on one side of the lower sleeve swing arm frame (2). The other end of the shock-absorbing suspension (5) is hinged to the adjusting sleeve (6). The same fixing plate (9) is fixed between the two swing arm fixed suspension frames (1). A hydraulic rod (10) is fixed on the surface of the fixing plate (9). One end of the hydraulic rod (10) is connected to the adjusting sleeve (6).

2. The shock-absorbing suspension device for a new energy vehicle according to claim 1, characterized in that: The surface of the adjusting sleeve (6) is fixed with a T-shaped fixing screw (7), and the surface of the swing arm fixing suspension frame (1) is provided with an adjusting groove (8) that is compatible with the T-shaped fixing screw (7). One end of the T-shaped fixing screw (7) is slidably connected in the adjusting groove (8).

3. The shock-absorbing suspension device for a new energy vehicle according to claim 1, characterized in that: A T-shaped limiting guide rod (25) is slidably connected in the through hole opened on the surface of the fixing plate (9). One end of the T-shaped limiting guide rod (25) is fixedly installed on the top and bottom surface of the adjusting support sleeve (6).

4. The shock-absorbing suspension device for a new energy vehicle according to claim 1, characterized in that: A hinge block (13) is fixedly installed on one side of the adjusting sleeve (6), and a support rod (14) is hinged to the surface of the hinge block (13). A fixing sleeve (11) is installed on the surface of the fixing plate (9) and below the support rod (14). Multiple slots (12) are equally spaced on the surface of the fixing sleeve (11).

5. The shock-absorbing suspension device for a new energy vehicle according to claim 4, characterized in that: An L-shaped guide rod (18) is fixedly installed on the inner wall of the fixed sleeve (11). One end of the L-shaped guide rod (18) is fixedly installed on the surface of the fixed plate (9). A moving block (16) is slidably connected to the surface of the L-shaped guide rod (18). Multiple inserts (20) are fixed at equal intervals on the surface of the moving block (16).

6. The shock-absorbing suspension device for a new energy vehicle according to claim 5, characterized in that: One end of the support rod (14) is rotatably connected to a rotating shaft (22), one end of the rotating shaft (22) is fixed with a sliding sleeve (21), the bottom surface of the sliding sleeve (21) is fixed with a hinged limiting sleeve (23), a sliding column (24) is hinged inside the hinged limiting sleeve (23), and an L-shaped guide groove (19) adapted to the sliding column (24) is opened on the surface of the moving block (16).

7. The shock-absorbing suspension device for a new energy vehicle according to claim 6, characterized in that: A guide plate (15) is fixedly installed on the surface of the fixed plate (9), and the sliding sleeve (21) is slidably connected to the surface of the guide plate (15).

8. The shock-absorbing suspension device for a new energy vehicle according to claim 5, characterized in that: The outer surface of the L-shaped guide rod (18) is fitted with a spring (17), one end of which abuts against one side surface of the moving block (16).

9. The shock-absorbing suspension device for a new energy vehicle according to claim 5, characterized in that: In the initial state, the multiple inserts (20) are inserted one by one into the slots (12) opened on the surface of the fixed sleeve (11), which makes the surface of the fixed sleeve (11) smooth.

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