New energy automobile axle connecting support

Abstract

The utility model discloses an axle connecting support of a new energy automobile. The axle connecting support comprises a support body, a plate spring, a fixing assembly and a damping assembly. The top of the support is fixed to the bottom of the automobile chassis. Two ends of the plate spring are fixedly connected with two ends of the bracket; the axle is connected with the plate spring through a fixing assembly. The multiple damping assemblies are arranged between the plate spring and the support. Each damping assembly comprises a spring, a telescopic piece and a fixing base, the telescopic pieces are hollow, the top ends of the springs are fixedly connected with the top ends of the inner walls of the telescopic pieces, the bottom ends of the springs are fixedly connected with the bottom ends of the inner walls of the telescopic pieces, the top ends of the telescopic pieces are slidably connected with the bottom ends of the supports, and the bottom ends of the fixing bases are rotationally connected with the top ends of the plate springs. The telescopic piece is arranged to be matched with the spring to increase the force absorption capacity, the ball bearing arranged between the second sleeve and the fixing base is matched with the supporting rod with the ball head part, multi-direction flexible rotation is achieved, and the damping effect is improved.

Description

A new energy vehicle axle connection bracket Technical Field

[0001] This utility model relates to the field of automotive axle technology, and in particular to a new energy vehicle axle connection bracket. Background Technology

[0002] With increasing environmental awareness, traditional cars are gradually being replaced by new energy vehicles. As a key component in the chassis system of new energy vehicles, the axle connecting bracket plays an important role in connecting the axle and the vehicle body. Its performance directly affects the stability, comfort and safety of the vehicle.

[0003] Currently, traditional automobile axle assemblies and main frames generally use ordinary steel leaf springs and composite leaf springs in their mechanical and vehicle suspension systems. Ordinary steel leaf springs are typically composed of several alloy leaf springs of the same width but different lengths stacked together, while composite leaf springs consist of a single composite leaf spring. When installing leaf springs on a car suspension, they are usually mounted longitudinally to the corresponding axle in a direction parallel to the vehicle's front and rear ends. The middle part of the leaf spring is fixedly connected to the axle, and the two ends are connected to the vehicle chassis. When working, the leaf spring bears a load in a positive vertical direction. The greater the load, the greater the deformation of the leaf spring; the smaller the load, the smaller the deformation. However, under large loads, only the hinged parts at both ends of the leaf spring bear the load, which can shorten its lifespan. Prolonged load application can lead to leaf spring breakage, resulting in poor reliability. Furthermore, it increases the vibration of minor bumps and vibrations in the vehicle, has poor shock absorption performance, and cannot effectively absorb the vibrations and impacts transmitted from the axle to the vehicle body, reducing passenger comfort.

[0004] Therefore, there is an urgent need for a new energy vehicle axle connection bracket with good shock absorption performance. Summary of the Invention

[0005] The purpose of this invention is to provide a new energy vehicle axle connection bracket to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A new energy vehicle axle connection bracket includes a bracket, leaf springs, fixing components, and shock absorption components;

[0008] The top of the bracket is fixed to the bottom of the vehicle chassis;

[0009] The two ends of the leaf spring are fixedly connected to the two ends of the bracket;

[0010] The axle and the leaf spring are connected by a fixing assembly;

[0011] Multiple shock-absorbing components are disposed between the leaf spring and the bracket; each shock-absorbing component includes a spring, a telescopic member, and a fixed base. The telescopic member is hollow inside. The top end of the spring is fixedly connected to the top end of the inner wall of the telescopic member, and the bottom end of the spring is fixedly connected to the bottom end of the inner wall of the telescopic member. The top end of the telescopic member is slidably connected to the bottom end of the bracket, and the bottom end of the telescopic member is rotatably connected to the top end of the fixed base. The bottom end of the fixed base is fixedly connected to the top end of the leaf spring.

[0012] Furthermore, two support plates are fixed at both ends of the bracket, and the two support plates are arranged opposite to each other. Both ends of the leaf spring are fixed with protrusions, and the protrusions are arranged between the two support plates. The two support plates and the protrusions are fixedly connected by bolts and nuts.

[0013] Furthermore, the fixing component includes a fixing plate, a first U-shaped groove, and a second U-shaped groove. The top end of the fixing plate is fixedly connected to the opening end of the first U-shaped groove, and the bottom end of the fixing plate is fixedly connected to the opening end of the second U-shaped groove. The axle passes through the first U-shaped groove and is fixedly connected to the first U-shaped groove. The leaf spring passes through the second U-shaped groove and is fixedly connected to the second U-shaped groove.

[0014] Furthermore, the fixing component also includes multiple connecting posts, which pass through the first U-shaped groove, the fixing plate, and the second U-shaped groove in sequence and are threadedly connected to the locking nut, which is located at the bottom of the second U-shaped groove.

[0015] Furthermore, the first U-shaped groove and the bracket are equipped with shock-absorbing springs.

[0016] Furthermore, the telescopic component includes a first sleeve and a second sleeve. The first sleeve is sleeved on the outside of the second sleeve. The inner wall of the first sleeve is provided with a plurality of grooves. The outer wall of the second sleeve is provided with a protrusion that cooperates with the grooves. The protrusion slides in the grooves. A limiting block that is fixedly connected to the first sleeve is provided at the bottom of the grooves. The first sleeve and the second sleeve are hollow inside. The top end of the inner wall of the first sleeve is fixedly connected to the top end of the spring, and the bottom end of the inner wall of the second sleeve is fixedly connected to the bottom end of the spring.

[0017] Furthermore, a slide table is fixed to the top of the first sleeve, and a slide groove that mates with the slide table is provided at the bottom of the bracket, and the slide groove is arranged horizontally.

[0018] Furthermore, a plurality of support rods are provided between the second sleeve and the fixed base, and ball heads are integrally connected to both ends of the support rods. Ball bearings for installing the ball heads are fixed to the top end of the fixed base and the bottom end of the second sleeve.

[0019] This utility model discloses the following technical effects: It provides a new energy vehicle axle connection bracket. Through the cooperation of a fixed plate, U-shaped groove, connecting column, and bolts, a stable connection between the axle and leaf spring is achieved, enhancing the stability of the vehicle. The first and second sleeves of the telescopic component, in conjunction with grooves, protrusions, and limiting blocks, ensure stable extension and contraction of the telescopic component and limit its stroke. The telescopic component and spring work together to enhance shock absorption. Furthermore, a sliding table and groove are provided to achieve flexible lateral displacement, reducing friction and wear. Additionally, a ball bearing and a ball-headed support rod located between the second sleeve and the fixed seat cooperate to achieve multi-directional flexible rotation, enhancing shock absorption, dispersing stress, and reducing wear. Through the combined action of all components, this utility model improves the overall performance of the axle connection structure, ensuring smooth, comfortable, safe, and reliable vehicle operation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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 these drawings without creative effort.

[0021] Figure 1: A perspective view of a new energy vehicle axle connection bracket according to this utility model;

[0022] Figure 2: Schematic diagram of a new energy vehicle axle connection bracket structure according to this utility model;

[0023] Figure 3: Schematic diagram of the shock absorption component of this utility model;

[0024] Figure 4: Schematic diagram of the ball head and ball bearing structure of this utility model;

[0025] Specifically, 1. Bracket; 2. Axle; 3. Leaf spring; 4. Support plate; 5. Protrusion; 6. Fixing plate; 7. First U-shaped groove; 8. Second U-shaped groove; 9. Connecting column; 10. Locking nut; 11. Shock-absorbing spring; 12. Spring; 13. Telescopic component; 131. First sleeve; 132. Second sleeve; 133. Groove; 134. Protrusion; 135. Limiting block; 14. Fixing seat; 15. Support rod; 16. Ball head; 17. Ball bearing; 18. Slide groove; 19. Slide table. Detailed Implementation

[0026] 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 present utility model.

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] The specific implementation method is as follows:

[0029] As shown in Figures 1-4; this utility model discloses a new energy vehicle axle 2 connecting bracket 1, including bracket 1, leaf spring 3, fixing component and shock absorption component;

[0030] The top of bracket 1 is fixedly connected to the bottom of the car chassis.

[0031] Both ends of the leaf spring 3 are fixedly connected to both ends of the bracket 1;

[0032] The axle 2 and the leaf spring 3 are connected by a fixing assembly;

[0033] Multiple shock-absorbing components are arranged between the leaf spring 3 and the bracket 1; the shock-absorbing components include a spring 12, a telescopic member 13 and a fixed seat 14. The telescopic member 13 is hollow inside. The top end of the spring 12 is fixedly connected to the top end of the inner wall of the telescopic member 13, the bottom end of the spring 12 is fixedly connected to the bottom end of the inner wall of the telescopic member 13, the top end of the telescopic member 13 is slidably connected to the bottom end of the bracket 1, the bottom end of the telescopic member 13 is rotatably connected to the top end of the fixed seat 14, and the bottom end of the fixed seat 14 is fixedly connected to the top end of the leaf spring 3.

[0034] In this embodiment, two shock-absorbing components are provided, arranged symmetrically around the fixed component.

[0035] This utility model is designed with spring 12 and telescopic member 13 working together. Spring 12 itself is elastic and deforms to absorb energy when subjected to external force. Telescopic member 13 expands and contracts when subjected to external force to absorb energy. The two work together to effectively absorb and buffer the vibration and impact transmitted from the axle 2 to the car chassis, thereby improving the stability and comfort of the vehicle during driving and reducing the bumpy feeling of passengers in the car.

[0036] Secondly, bracket 1 is fixed to the bottom of the car chassis, and the two ends of leaf spring 3 are fixedly connected to the two ends of bracket 1. Axle 2 is also connected to leaf spring 3 through a fixing component, forming a stable connection structure. This connection method allows the force on axle 2 to be evenly transmitted to bracket 1 and chassis, dispersing the load, avoiding excessive local stress, enhancing the stability and reliability of the entire axle 2 connection structure, and helping to extend the service life of components.

[0037] Furthermore, the top end of the telescopic component 13 is slidably connected to the bottom end of the bracket 1, and the bottom end is rotatably connected to the top end of the fixed seat 14. This design allows the leaf spring 3 to move to a certain extent relative to the road surface during vehicle operation. Specifically, when encountering uneven road surfaces, the leaf spring 3 can swing up and down, back and forth, and left and right, ensuring that the shock absorption components work flexibly under force, while also reducing the stress concentration problem caused by rigid connection.

[0038] In this embodiment, two support plates 4 are fixed at both ends of the bracket 1, and the two support plates 4 are arranged opposite to each other. Both ends of the leaf spring 3 are fixed with protrusions 5, which are arranged between the two support plates 4. The two support plates 4 and the protrusions 5 are fixedly connected by bolts.

[0039] This utility model forms a relatively compact and robust connection structure by setting opposite support plates 4 at both ends of the bracket 1 and fixing the support plates 4 to the protrusions 5 at both ends of the leaf spring 3 with bolts, thereby enhancing the stability of the entire axle 2 connection system.

[0040] In this embodiment, the fixing component includes a fixing plate 6, a first U-shaped groove 7, and a second U-shaped groove. The top end of the fixing plate 6 is fixedly connected to the opening end of the first U-shaped groove 7, and the bottom end of the fixing plate 6 is fixedly connected to the opening end of the second U-shaped groove 8. The axle 2 passes through the first U-shaped groove 7 and is fixedly connected to the first U-shaped groove. The leaf spring 3 passes through the second U-shaped groove 8 and is fixedly connected to the second U-shaped groove 8.

[0041] This invention connects the first U-shaped groove 7 and the second U-shaped groove 8 into a single structure using a fixing plate 6. The axle 2 passes through the first U-shaped groove 7 and is fixedly connected to it, while the leaf spring 3 passes through the second U-shaped groove 8 and is fixedly connected to it. This method can firmly connect the axle 2 and the leaf spring 3 together. The design of the U-shaped groove can constrain the axle 2 and the leaf spring 3 from multiple directions, limiting their relative displacement in the horizontal and vertical directions, ensuring that the connection between the axle 2 and the leaf spring 3 is stable and reliable during vehicle operation, and effectively transmitting force and torque.

[0042] In this embodiment, the fixing component also includes a plurality of connecting posts 9, which pass through the first U-shaped groove 7, the fixing plate 6, and the second U-shaped groove 8 in sequence and are threadedly connected to the locking nut 10. The locking nut 10 is located at the bottom of the second U-shaped groove 8.

[0043] In this embodiment, the connecting post 9 is configured as one, passing through the center of the first U-shaped groove 7, the fixing plate 6, and the second U-shaped groove 8 in sequence.

[0044] This utility model can apply a fastening force to the first U-shaped groove 7, the fixing plate 6 and the second U-shaped groove 8 through the connecting column 9, so as to ensure that the connection between the axle 2, the leaf spring 3 and the fixing plate 6 is more secure, effectively preventing the connection from loosening due to vibration, bumps and other factors during vehicle operation, and improving the stability and reliability of the entire axle 2 connection structure.

[0045] In this embodiment, a shock-absorbing spring 11 is installed in the first U-shaped groove and the bracket 1. The top end of the first U-shaped groove 7 is fixedly connected to the bottom end of the shock-absorbing spring 11, and the bottom end of the bracket 1 is fixedly connected to the top end of the shock-absorbing spring 11.

[0046] The shock-absorbing spring 11 of this utility model can absorb and buffer the vibration and impact transmitted from the axle 2 to the bracket 1 and the automobile chassis.

[0047] In this embodiment, the telescopic member 13 includes a first sleeve 131 and a second sleeve 132. The first sleeve 131 is sleeved on the outside of the second sleeve 132. The inner wall of the first sleeve 131 is provided with a plurality of grooves 133. The outer wall of the second sleeve 132 is provided with a protrusion 134 that cooperates with the grooves 133. The protrusion 134 slides in the grooves 133. A limiting block 135 that is fixedly connected to the first sleeve 131 is provided at the bottom of the grooves 133. The first sleeve 131 and the second sleeve 132 are hollow inside. The top end of the inner wall of the first sleeve 131 is fixedly connected to the top end of the spring 12, and the bottom end of the inner wall of the second sleeve 132 is fixedly connected to the bottom end of the spring 12.

[0048] The bottom of the first sleeve 131 of this utility model is fitted onto the top of the second sleeve 132, and the cooperation between the groove 133 and the protrusion 134 allows the protrusion 134 to slide within the groove 133. This design ensures that the telescopic member 13 can move smoothly along a predetermined direction during the telescopic process without radial swaying or deviation, thereby ensuring the stability and reliability of the telescopic action. This effectively absorbs and buffers the vibration transmitted by the axle 2, and can continuously provide a good shock absorption effect for the axle 2 connection structure. The spring 12 plays an important role in buffering and shock absorption inside the telescopic member 13. When the telescopic member 13 is subjected to external force and telescopics, the spring 12 will simultaneously undergo compression or stretching deformation, absorbing and storing vibration energy, further enhancing the absorption and buffering capacity of the axle 2 vibration.

[0049] In this embodiment, a slide table 19 is fixed at the top of the first sleeve 131, and a slide groove 18 that cooperates with the slide table 19 is provided at the bottom of the bracket 1. The slide groove 18 is arranged horizontally.

[0050] When the vehicle encounters uneven road surfaces or other conditions during driving, causing the axle 2 to undergo lateral displacement, the telescopic component 13 can adapt to this displacement by sliding the slide table 19 within the slide groove 18. This avoids excessive lateral stress on the components due to rigid connections, thereby protecting the various components of the axle 2 connection structure and reducing the risk of damage. Combined with the telescopic function, the shock absorber assembly can more comprehensively cope with vibrations and impacts from different directions. It can not only absorb vertical vibrations but also buffer lateral impact forces to a certain extent, further increasing the freedom of movement of the shock absorber assembly.

[0051] In this embodiment, a plurality of support rods 15 are provided between the second sleeve 132 and the fixed base 14. Ball heads 16 are integrally connected to both ends of the support rods 15. Ball bearings 17 for mounting the ball heads 16 are fixed to the top of the fixed base 14 and the bottom of the second sleeve 132.

[0052] In this embodiment, there are two support rods 15, which are symmetrically arranged with the central axis of the fixed seat 14 as the axis of symmetry.

[0053] The ball heads 16 at both ends of the support rod 15 of this utility model cooperate with the ball bearings 17 on the fixed seat 14 and the second sleeve 132, so that the second sleeve 132 and the fixed seat 14 can rotate flexibly in multiple directions. Specifically, when the axle 2 undergoes complex movements due to uneven road surface or other factors during driving, the support rod 15 can rotate accordingly under the action of the ball bearings 17, thereby better adapting to various movement postures of the axle 2, ensuring that the shock absorption components can play a continuous and effective role, and improving the adaptability of the entire axle 2 connection structure to different working conditions.

[0054] In practical use, the top of the bracket 1 for a new energy vehicle axle 2 is fixed to the bottom of the vehicle chassis. Its two ends are securely connected to the protrusions 5 at both ends of the leaf spring 3 via a support plate 4 and bolts and nuts. A fixing plate 6 connects to a first U-shaped groove 7 and a second U-shaped groove 8. The axle 2 passes through the first U-shaped groove 7, and the leaf spring 3 passes through the second U-shaped groove 8 and is fixed thereto. Multiple connecting posts 9 sequentially pass through the first U-shaped groove 7, the fixing plate 6, and the second U-shaped groove 8, and are threadedly connected to locking nuts 10, enhancing the connection's tightness. The telescopic component 13 consists of a first sleeve 131 and a second sleeve 132, which are connected to a protrusion via a groove 133. The 134 mechanism enables stable telescopic movement, the limit block 135 restricts the telescopic stroke, and the internal spring 12 enhances the shock absorption effect. The slide table 19 at the top of the first sleeve 131 slides within the transverse slide groove 18 at the bottom of the bracket 1, accommodating the lateral displacement of the axle 2. Simultaneously, the support rod 15 of the ball head 16 between the second sleeve 132 and the fixed seat 14 achieves multi-directional flexible rotation through the ball bearing 17, further buffering multi-directional impact forces. In addition, the shock-absorbing spring 11 at the top of the first U-shaped groove and the bottom of the bracket 1 also absorbs and buffers vibrations. These structures work together to effectively absorb and buffer the vibrations and impacts transmitted by the axle 2, ensuring the smoothness and comfort of vehicle operation.

[0055] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0056] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0057] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A new energy vehicle axle connection bracket, characterized in that: The system includes: a bracket fixed to the bottom of the vehicle chassis; a leaf spring with both ends fixedly connected to both ends of the bracket; a fixing assembly connecting the axle and the leaf spring; and a shock-absorbing assembly, with multiple shock-absorbing assemblies disposed between the leaf spring and the bracket. Each shock-absorbing assembly includes a spring, a telescopic member, and a fixing seat. The telescopic member is hollow internally. The top end of the spring is fixedly connected to the top end of the inner wall of the telescopic member, and the bottom end of the spring is fixedly connected to the bottom end of the inner wall of the telescopic member. The top end of the telescopic member is slidably connected to the bottom end of the bracket, and the bottom end of the telescopic member is rotatably connected to the top end of the fixing seat. The bottom end of the fixing seat is fixedly connected to the top end of the leaf spring.

2. The axle connection bracket for a new energy vehicle according to claim 1, characterized in that: Two support plates are fixed at both ends of the bracket, and the two support plates are arranged opposite to each other. Both ends of the leaf spring are fixed with protrusions, which are arranged between the two support plates. The two support plates and the protrusions are fixedly connected by bolts and nuts.

3. The axle connection bracket for a new energy vehicle according to claim 1, characterized in that: The fixing component includes a fixing plate, a first U-shaped groove, and a second U-shaped groove. The top end of the fixing plate is fixedly connected to the opening end of the first U-shaped groove, and the bottom end of the fixing plate is fixedly connected to the opening end of the second U-shaped groove. The axle passes through the first U-shaped groove and is fixedly connected to the first U-shaped groove. The leaf spring passes through the second U-shaped groove and is fixedly connected to the second U-shaped groove.

4. The axle connection bracket for a new energy vehicle according to claim 3, characterized in that: The fixing component also includes multiple connecting posts, which pass through the first U-shaped groove, the fixing plate, and the second U-shaped groove in sequence and are threadedly connected to the locking nut. The locking nut is located at the bottom of the second U-shaped groove.

5. A new energy vehicle axle connection bracket according to claim 4, characterized in that: The first U-shaped groove and the bracket are equipped with shock-absorbing springs.

6. The axle connection bracket for a new energy vehicle according to claim 1, characterized in that: The telescopic component includes a first sleeve and a second sleeve. The first sleeve is sleeved on the outside of the second sleeve. The inner wall of the first sleeve is provided with a plurality of grooves. The outer wall of the second sleeve is provided with a protrusion that cooperates with the grooves. The protrusion slides in the groove. A limiting block that is fixedly connected to the first sleeve is provided at the bottom of the groove. The first sleeve and the second sleeve are hollow inside. The top end of the inner wall of the first sleeve is fixedly connected to the top end of the spring. The bottom end of the inner wall of the second sleeve is fixedly connected to the bottom end of the spring.

7. A new energy vehicle axle connection bracket according to claim 6, characterized in that: The top of the first sleeve is fixed with a slide table, and the bottom of the bracket is provided with a slide groove that cooperates with the slide table. The slide groove is arranged horizontally.

8. A new energy vehicle axle connection bracket according to claim 7, characterized in that: Multiple support rods are provided between the second sleeve and the fixed base. Ball heads are integrally connected to both ends of the support rods. Ball bearings for installing the ball heads are fixed to the top of the fixed base and the bottom of the second sleeve.

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