A bracket for a composite leaf spring suspension

Abstract

The utility model relates to the field of plate spring, specifically disclose a kind of bracket for composite material plate spring suspension, including two symmetrical supports, still include: two swing seats, one end of swing seat is respectively connected with corresponding support rotation, so that swing seat can swing around first axis relative to support;Two adjusting seats, adjusting seat is respectively slidably connected with corresponding swing seat, and can reciprocate along the length direction of swing seat to adjust position;Two connecting seats, one end of connecting seat is respectively connected with corresponding adjusting seat rotation. In the utility model, by rotating adjusting knob drive screw rotation, adjusting seat is linearly moved along the adjusting groove of swing seat, the interval of two connecting seats is changed, can make single bracket adapt to different length specifications of composite material plate spring, expand the application range of bracket.

Description

Technical Field

[0001] This utility model belongs to the field of leaf spring technology, specifically relating to a bracket for a composite material leaf spring suspension. Background Technology

[0002] The bracket for composite leaf spring suspension is a key load-bearing component in the automotive suspension system, connecting the vehicle frame and the composite leaf spring. It constrains the displacement trajectory of the composite leaf spring, ensuring the structural stability and ride comfort of the suspension system. In practical applications, the bracket needs to be used with bolts, pins, rubber bushings, and other connecting parts to achieve the connection with the composite leaf spring.

[0003] A search revealed that CN210792728U discloses a bracket for a longitudinally arranged composite material leaf spring suspension, comprising a bracket body. A leaf spring suspension body is connected to one side of the bracket body, and a splicing mechanism is installed on the outer side of the leaf spring suspension body. A fixing mechanism is installed outside the splicing mechanism. The upper and lower clamping plates connected by a sleeve are inserted into the connecting plate of the leaf spring suspension body. A screw is then inserted into the corresponding first insertion hole, and a first bolt is tightened on the screw, thereby achieving a fixed splicing between the sleeve and the leaf spring suspension body.

[0004] Existing composite leaf spring suspension brackets generally adopt an integrated fixing structure, which can only be adapted to composite leaf springs of a single size, resulting in low compatibility. Utility Model Content

[0005] The purpose of this utility model is to provide a bracket for composite material leaf spring suspension, so as to solve the problem mentioned in the background art that the bracket for composite material leaf spring suspension generally adopts an integrated fixing structure, which can only be adapted to composite material leaf springs of a single size and has low compatibility.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A bracket for a composite material leaf spring suspension includes two symmetrically arranged support seats, and further includes: Two swing seats, one end of which is rotatably connected to a corresponding support seat, so that the swing seats can swing relative to the support seats about a first axis. Two adjusting seats, each of which is slidably engaged with a corresponding swing seat and can reciprocate along the length of the swing seat to adjust its position; Two connecting seats, one end of which is rotatably connected to a corresponding adjusting seat, allowing the connecting seat to swing relative to the adjusting seat around a second axis. The other end of the connecting seat is used to connect to the end of a composite material leaf spring.

[0007] In one embodiment, the swing seat includes: A lead screw is mounted on a swing seat, and one end of the lead screw is threadedly connected to an adjusting seat. The adjustment knob is mounted on the swing seat, and the end of the lead screw away from the adjustment seat is connected to the adjustment knob.

[0008] In one embodiment, the connector includes: Bolts are installed on the connecting seat, which is connected to the composite material leaf spring by bolts.

[0009] Preferred options also include: The buffer rod is connected to the support base at one end and to the swing base at the other end.

[0010] In one embodiment, the buffer bar includes: A movable block is connected to a support base, and one end of the buffer rod is rotatably connected to the movable block; A connecting block is attached to the swing seat, and the end of the buffer rod away from the moving block is rotatably connected to the connecting block.

[0011] In one embodiment, a movable groove is provided on one side of the support base, the movable block is connected to the movable groove, and an elastic element is installed between the movable block and the inner wall of the movable groove.

[0012] In a preferred embodiment, the support base has a first groove, and the swing seat is rotatably connected to the first groove.

[0013] In a preferred embodiment, the swing seat is provided with an adjustment groove, and the adjustment seat is connected to the adjustment groove.

[0014] In one embodiment, the adjusting seat has a second groove, and the connecting seat is connected to the second groove.

[0015] In one embodiment, the connecting seat has an assembly groove, and the end of the composite material leaf spring is installed in the assembly groove.

[0016] This invention provides a bracket for a composite material leaf spring suspension. Compared with the prior art, it has the following advantages: By rotating the adjustment knob to drive the lead screw to rotate, the adjustment seat moves linearly along the adjustment groove of the swing seat, changing the distance between the two connecting seats. This allows a single bracket to adapt to composite material leaf springs of different lengths, expanding the bracket's applicability. The swing seat swings relative to the support seat around a first axis, and the connecting seat swings relative to the adjustment seat around a second axis, forming a multi-dimensional attitude adjustment mechanism. This allows for real-time adaptation to the elastic deformation trajectory of the composite material leaf spring during vehicle operation, avoiding localized stress concentration caused by rigid constraints. The buffer rod is rotatably connected to the moving block and connecting block at both ends. Combined with the sliding of the moving block along the support seat's moving groove and the compression and stretching of the elastic element, it can absorb the vibration energy generated by road bumps during vehicle operation, reducing the efficiency of impact load transmission to the vehicle frame. Attached Figure Description

[0017] Figure 1 This is an assembly diagram of the bracket for the composite material leaf spring suspension proposed in this utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram from another perspective of the present invention.

[0020] Figure 4 This is a schematic diagram of the support base, moving block, buffer rod, connecting block, and elastic element proposed in this utility model.

[0021] Figure 5 This is a cross-sectional schematic diagram of the support base, swing base, adjustment base, and connecting base proposed in this utility model.

[0022] The reference numerals in the figure are as follows: 100, support base; 101, moving groove; 200, swing base; 201, lead screw; 202, adjusting knob; 300, adjusting base; 400, connecting base; 401, bolt; 500, buffer rod; 501, moving block; 502, connecting block; 503, elastic element. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1-5A composite material leaf spring suspension bracket includes two symmetrically arranged support seats 100, and further includes: Two swing seats 200, one end of each swing seat 200 is rotatably connected to a corresponding support seat 100, so that the swing seat 200 can swing relative to the support seat 100 around a first axis; Two adjusting seats 300 are respectively slidably engaged with corresponding swing seats 200 and can reciprocate along the length direction of the swing seats 200 to adjust their positions; Two connecting seats 400, one end of which is rotatably connected to the corresponding adjusting seat 300, so that the connecting seat 400 can swing relative to the adjusting seat 300 around the second axis, and the other end of the connecting seat 400 is used to connect to the end of the composite material leaf spring.

[0025] In the above technical solution, the distance between the two connecting seats 400 can be flexibly changed by sliding the adjusting seat 300 along the length direction of the swing seat 200, adapting to composite leaf springs of different lengths; the swing of the swing seat 200 around the first axis and the swing of the connecting seat 400 around the second axis form a multi-dimensional attitude adjustment mechanism, which can not only adapt to the installation angle requirements of leaf springs in different vehicle models, but also adjust the connection attitude with the elastic deformation of the composite leaf spring during vehicle operation, avoiding stress concentration caused by rigid constraints. Combined with the fatigue resistance characteristics of the composite material itself, quick alignment can be achieved through sliding and swing adjustment during installation, reducing assembly difficulty.

[0026] The swing seat 200 includes: a lead screw 201, which is installed on the swing seat 200, and one end of the lead screw 201 is threadedly connected to the adjusting seat 300; and an adjusting knob 202, which is installed on the swing seat 200, and the end of the lead screw 201 away from the adjusting seat 300 is connected to the adjusting knob 202.

[0027] Specifically, when the adjustment knob 202 is rotated, the lead screw 201 is converted into a linear displacement of the adjustment seat 300 along the length of the swing seat 200 through the threaded transmission. The spacing can be adjusted according to the specific length of the composite material leaf spring. The threaded transmission has a self-locking characteristic, which can effectively prevent the adjustment seat 300 from being accidentally displaced in the vibration environment of vehicle driving, ensuring the connection stability between the connecting seat 400 and the leaf spring, and avoiding abnormal noise or structural damage caused by loosening.

[0028] The connecting seat 400 includes a bolt 401, which is installed on the connecting seat 400, and the connecting seat 400 is connected to the composite material leaf spring by the bolt 401.

[0029] Specifically, the connecting seat 400 is connected to the composite material leaf spring by bolt 401, which can realize the detachable connection between the two, ensuring the load transfer efficiency between the leaf spring and the bracket. When it is necessary to replace leaf springs of different specifications or repair parts, only bolt 401 needs to be removed to complete the operation.

[0030] It also includes: a buffer rod 500, one end of which is connected to the support base 100 and the other end of which is connected to the swing base 200.

[0031] The buffer rod 500 includes: a movable block 501 connected to the support base 100, one end of the buffer rod 500 being rotatably connected to the movable block 501; and a connecting block 502 connected to the swing base 200, one end of the buffer rod 500 away from the movable block 501 being rotatably connected to the connecting block 502.

[0032] In the above technical solution, the buffer rod 500, the moving block 501, and the connecting block 502 can effectively buffer the dynamic swing impact of the swing seat 200. When the vehicle encounters bumps and the composite material leaf spring deforms, causing the swing seat 200 to rotate around the support seat 100, the buffer rod 500 can adapt to the rotation of the moving block 501 and the connecting block 502 at both ends, and generate adaptive extension or angle adjustment with the swing of the swing seat 200, absorbing part of the vibration energy and reducing the impact load at the connection between the swing seat 200 and the support seat 100; the buffer rod 500 can form a flexible constraint on the swing amplitude of the swing seat 200.

[0033] A movable groove 101 is provided on one side of the support base 100, and the movable block 501 is connected in the movable groove 101. An elastic element 503 is installed between the movable block 501 and the inner wall of the movable groove 101.

[0034] Specifically, the elastic element 503 can be a spring or an elastic block; when the swing seat 200 swings and drives the buffer rod 500 to pull or push the moving block 501, the moving block 501 can slide along the inner wall of the moving groove 101, so that the elastic element 503 is compressed or stretched, and absorbs more vibration energy through elastic deformation; the elastic force of the elastic element 503 will change dynamically with the displacement of the moving block 501, and the buffering force can be adaptively adjusted according to the impact intensity.

[0035] The support base 100 has a first groove, and the swing base 200 is rotatably connected to the first groove.

[0036] The swing seat 200 is provided with an adjustment groove, and the adjustment seat 300 is connected to the adjustment groove.

[0037] The adjusting seat 300 has a second groove, and the connecting seat 400 is connected to the second groove.

[0038] The connecting seat 400 has an assembly groove, and the end of the composite material leaf spring is installed in the assembly groove.

[0039] In the above technical solution, the first groove of the support seat 100, the adjustment groove of the swing seat 200, the second groove of the adjustment seat 300, and the assembly groove of the connecting seat 400 form a hierarchical inclusive structure; the first groove forms a circumferential constraint on the swing seat 200 through the cavity wall, preventing radial offset when it rotates; the cooperation between the adjustment groove and the adjustment seat 300 provides directional guidance for the sliding of the adjustment seat 300, preventing the adjustment seat 300 from skewing or getting stuck when it moves along the length direction of the swing seat 200, and ensuring the linearity of the spacing adjustment; the second groove limits the connecting seat 400, so that the swing of the connecting seat 400 around the second axis always takes place within a preset plane.

[0040] During use, according to the length specifications of the composite leaf spring to be installed, rotate the adjustment knob 202 on the swing seat 200. The adjustment knob 202 drives the lead screw 201 to rotate. The rotational motion of the lead screw 201 is converted into linear displacement of the adjustment seat 300 along the adjustment groove of the swing seat 200 through thread transmission, which pushes the connecting seat 400 on the adjustment seat 300 to move synchronously until the distance between the two symmetrical connecting seats 400 matches the length of the composite leaf spring. At this time, the self-locking characteristic of the thread transmission can fix the position of the adjustment seat 300 to prevent it from being accidentally displaced in subsequent operations. The first groove on the support seat 100 forms a circumferential constraint on the swing seat 200 to ensure that the swing seat 200 does not undergo radial displacement during the adjustment process.

[0041] The two ends of the composite material leaf spring are respectively inserted into the assembly slots of the two connecting seats 400, and then the bolts 401 on the connecting seats 400 are tightened. If there is a slight angular deviation during the assembly process, the connecting seat 400 can be adjusted by swinging the second axis in the second groove of the adjusting seat 300 with a small amplitude to ensure that the leaf spring and the connecting seat 400 are accurately aligned and reduce the assembly difficulty.

[0042] When the vehicle encounters a bumpy road, the composite leaf spring is impacted and undergoes elastic deformation, causing the connecting seat 400 to move synchronously. The connecting seat 400 swings around the second axis to adapt to the deformation posture of the leaf spring. At the same time, the deformation of the leaf spring is transmitted to the swing seat 200 through the connecting seat 400 and the adjusting seat 300, causing the swing seat 200 to swing around the first axis in the first groove of the support seat 100 to adapt to the angle change of the leaf spring. During this process, the two ends of the buffer rod 500 are respectively rotated and adapted to the support seat 100 through the moving block 501 and the swing seat 200 through the connecting block 502, and swing with the swing seat 200. The angle is adjusted by the movement; if the swing amplitude is large, the buffer rod 500 will pull or push the moving block 501 to slide along the moving groove 101 of the support seat 100, so that the elastic element 503 between the moving block 501 and the inner wall of the moving groove 101 is compressed or stretched. The elastic element 503 absorbs vibration energy through deformation, and its elastic force changes dynamically with the displacement of the moving block 501. The buffer force is adaptively adjusted according to the impact intensity to reduce the impact load at the connection between the swing seat 200 and the support seat 100. At the same time, it forms a flexible constraint on the swing amplitude of the swing seat 200 to prevent it from swinging excessively and interfering with the surrounding components.

[0043] When it is necessary to replace composite leaf springs of different specifications or repair parts, remove bolts 401 on the connecting seat 400 and take the old leaf spring out of the assembly slot. If the length of the new leaf spring is different from that of the original leaf spring, the adjusting knob 202 can be turned again to adjust the position of the adjusting seat 300 through the lead screw 201, and the spacing of the connecting seat 400 can be changed to match the length of the new leaf spring. After the adjustment is completed, the new leaf spring is inserted into the assembly slot and the bolts 401 are tightened to complete the maintenance and replacement without replacing the entire bracket.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bracket for a composite material leaf spring suspension, comprising two symmetrically arranged support seats (100), characterized in that, Also includes: Two swing seats (200), one end of which is rotatably connected to a corresponding support seat (100), so that the swing seat (200) can swing relative to the support seat (100) around a first axis; Two adjusting seats (300) are respectively slidably engaged with corresponding swing seats (200) and can reciprocate along the length direction of the swing seats (200) to adjust their positions; Two connecting seats (400) are provided, one end of which is rotatably connected to the corresponding adjusting seat (300) so that the connecting seat (400) can swing relative to the adjusting seat (300) around the second axis. The other end of the connecting seat (400) is used to connect the end of the composite material leaf spring.

2. The composite material leaf spring suspension bracket according to claim 1, characterized in that, The swing seat (200) includes: A lead screw (201) is mounted on a swing seat (200), and one end of the lead screw (201) is threadedly connected to an adjusting seat (300); An adjustment knob (202) is mounted on a swing seat (200), and the end of the lead screw (201) away from the adjustment seat (300) is connected to the adjustment knob (202).

3. The bracket for a composite material leaf spring suspension according to claim 1, characterized in that, The connector (400) includes: Bolt (401) is installed on connecting seat (400), which is connected to composite leaf spring by bolt (401).

4. The bracket for a composite material leaf spring suspension according to claim 1, characterized in that, Also includes: The buffer rod (500) is connected at one end to the support base (100) and at the other end to the swing base (200).

5. The composite material leaf spring suspension bracket according to claim 4, characterized in that, The buffer bar (500) includes: A movable block (501) is connected to a support base (100), and one end of the buffer rod (500) is rotatably connected to the movable block (501); The connecting block (502) is connected to the swing seat (200), and the end of the buffer rod (500) away from the moving block (501) is rotatably connected to the connecting block (502).

6. The composite material leaf spring suspension bracket according to claim 5, characterized in that, A movable groove (101) is provided on one side of the support base (100), and the movable block (501) is connected in the movable groove (101). An elastic element (503) is installed between the movable block (501) and the inner wall of the movable groove (101).

7. The composite material leaf spring suspension bracket according to claim 1, characterized in that, The support base (100) has a first groove, and the swing base (200) is rotatably connected to the first groove.

8. The composite material leaf spring suspension bracket according to claim 1, characterized in that, The swing seat (200) is provided with an adjustment groove, and the adjustment seat (300) is connected to the adjustment groove.

9. The bracket for a composite material leaf spring suspension according to claim 1, characterized in that, The adjusting seat (300) has a second groove, and the connecting seat (400) is connected to the second groove.

10. The bracket for a composite material leaf spring suspension according to claim 1, characterized in that, The connecting seat (400) has an assembly groove, and the end of the composite material leaf spring is installed in the assembly groove.

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