Suspension system and vehicle

Abstract

The utility model relates to a suspension system and a vehicle, the suspension system comprises a steering knuckle, a transverse plate spring assembly and a fork arm, the steering knuckle is connected to the transverse plate spring assembly and the fork arm, the transverse plate spring assembly is located above the fork arm, the suspension system can simplify the structure of the suspension system, and the purpose of lightweight design of the vehicle is achieved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicles, and in particular, to a suspension system and a vehicle. Background Art

[0002] With the development of the automobile industry, the comfort and stability of automobiles have become one of the important concerns of people. While the automobile is constantly being lightweight, it can also further improve the riding comfort. In the related technology, the structure of the suspension system is relatively complex and the number of parts is large, which is not conducive to the lightweight design of the vehicle. Utility Model Content

[0003] The purpose of the present disclosure is to provide a suspension system and a vehicle, which can simplify the structure of the suspension system and achieve the purpose of lightweight design of the vehicle, so as to at least partially solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned purpose, a first aspect of the present disclosure provides a suspension system, including a steering knuckle, a transverse leaf spring assembly and a wishbone, wherein the steering knuckle is respectively connected to the transverse leaf spring assembly and the wishbone, and the transverse leaf spring assembly is located above the wishbone.

[0005] Optionally, the suspension system further comprises a fixing device connected to the wishbone and the transverse leaf spring assembly.

[0006] Optionally, there are multiple fixing devices and they are arranged at intervals along the length direction of the transverse leaf spring assembly.

[0007] Optionally, the number of the fixing devices is two, and the two fixing devices are symmetrically arranged about a center line of the transverse leaf spring assembly along its own width direction.

[0008] Optionally, the fixing device includes: a positioning member fixedly connected to the transverse leaf spring assembly; and a support rod, two ends of which are respectively connected to the positioning member and the fork arm.

[0009] Optionally, the positioning member is sleeved on the transverse leaf spring assembly, and the support rods are multiple and arranged at intervals.

[0010] Optionally, there are two support rods, and the two support rods are symmetrically arranged about a center line of the transverse leaf spring assembly along its own length direction.

[0011] Optionally, the fork arm includes a first fork and a second fork connected to each other, at least one of the support rods is connected to the first fork, and at least another of the support rods is connected to the second fork.

[0012] Optionally, the support rod includes a first section, a second section and a third section connected in sequence from the positioning member toward the fork arm, the first section, the second section and the third section are Z-shaped, the second section extends in a vertical direction, the first section extends from the second section toward the transverse leaf spring assembly and obliquely upward, and the third section extends from the second section toward the fork arm and obliquely downward.

[0013] Optionally, the transverse leaf spring assembly includes a transverse leaf spring body and a connecting component, the transverse leaf spring body is connected to the steering knuckle via the connecting component, the connecting component includes a connecting plate connected to the transverse leaf spring body, the connecting plate is connected to the transverse leaf spring body via a plurality of connecting members, and the installation positions of the plurality of connecting members form a polygonal outline.

[0014] Optionally, the suspension system further comprises a shock absorber connected to the steering knuckle or the wishbone.

[0015] A second aspect of the present disclosure provides a vehicle comprising a suspension system as described in any of the above optional schemes.

[0016] Through the above technical solution, that is, the suspension system provided by the present invention, the transverse leaf spring assembly is placed above the fork arm. Due to the use of the transverse leaf spring assembly and its arrangement, the outer coil spring and stabilizer bar of the shock absorber in the suspension system can be replaced, and the entire suspension system can be elastically buffered and stably supported. There is no need to arrange the coil spring and the corresponding stabilizer bar on the outer side of the shock absorber, which saves the number of components required for the suspension system and simplifies the structure of the suspension system, so as to achieve the purpose of lightweight design of the vehicle.

[0017] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0019] Figure 1 is a schematic structural diagram of a suspension system provided in an exemplary embodiment of the present disclosure;

[0020] Figure 2 yes Figure 1 A partial enlarged view of position A in the middle;

[0021] Figure 3 is a front view of a suspension system provided in an exemplary embodiment of the present disclosure;

[0022] Figure 4is a schematic diagram of a side view of a partial structure of a suspension system provided in an exemplary embodiment of the present disclosure;

[0023] Figure 5 It is a partial structural schematic diagram of a transverse leaf spring assembly provided in an exemplary embodiment of the present disclosure.

[0024] Description of Reference Numerals

[0025] 1-steering knuckle; 2-transverse leaf spring assembly; 210-transverse leaf spring body; 211-opening; 220-connecting assembly; 221-connecting plate; 222-connecting piece; 3-fork arm; 301-first fork; 302-second fork; 4-fixing device; 410-positioning piece; 420-support rod; 421-first section; 422-second section; 423-third section; 5-shock absorber; 6-frame; 7-ball pin. DETAILED DESCRIPTION

[0026] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0027] In the present disclosure, unless otherwise specified, directional words such as "inside" and "outside" refer to the inside and outside relative to the outline of the component or structure itself; "first, second" and the like are to distinguish one element from another and have no order or importance. In addition, the same figure marks in different reference drawings represent the same elements.

[0028] In a first aspect of the present disclosure, a suspension system is provided, referring to Figures 1 to 5 As shown, the suspension system includes a steering knuckle 1 , a transverse leaf spring assembly 2 and a fork arm 3 , the steering knuckle 1 is connected to the transverse leaf spring assembly 2 and the fork arm 3 , respectively, and the transverse leaf spring assembly 2 is located above the fork arm 3 .

[0029] Through the above technical solution, the transverse leaf spring assembly 2 is placed above the fork arm 3. Due to the use of the transverse leaf spring assembly 2 and its arrangement, the outer coil spring and stabilizer bar of the shock absorber in the suspension system can be replaced, and the entire suspension system can be elastically buffered and stably supported. There is no need to arrange the coil spring and the corresponding stabilizer bar on the outer side of the shock absorber, which saves the number of components required for the suspension system and simplifies the structure of the suspension system, so as to achieve the purpose of lightweight design of the vehicle.

[0030] Specifically, in the related art, vehicles usually adopt a double wishbone suspension system, which includes an upper wishbone and a lower wishbone. The upper wishbone and the lower wishbone have an important influence on the operability and stability of the whole vehicle. Among them, the lower wishbone is longer than the upper wishbone and has greater rigidity, and has a greater impact on the operability and stability of the whole vehicle. At the same time, the existence of the lower wishbone can reduce the wheelbase change and thus reduce tire wear. Therefore, the present application retains the lower wishbone (i.e., the wishbone 3 of the present application) and replaces the upper wishbone with a transverse leaf spring assembly. Compared with replacing the lower wishbone with a transverse leaf spring assembly, it can not only achieve lightweight design, save the number of parts (such as coil springs, stabilizer bars), and streamline the structure, but also retain the above-mentioned advantages brought by the lower wishbone. At the same time, the transverse leaf spring assembly is used to further increase the rigidity of the suspension system, reduce the influence of lateral force when the vehicle turns, and further improve the vehicle's maneuverability and stability.

[0031] In some embodiments, reference Figures 1 to 5 As shown, the suspension system also includes a shock absorber 5 connected to the steering knuckle 1 or the fork arm 3. In this way, the shock absorber 5 can absorb the vibration generated by the entire suspension system. In the suspension system provided by this solution, since the transverse leaf spring assembly 2 is located above the fork arm 3, the transverse leaf spring assembly 2 itself also has a certain rigidity and elasticity, so the transverse leaf spring assembly 2 can replace the coil spring and stabilizer bar outside the shock absorber 5, and can play a role in stable support and providing a certain elastic buffer margin. In this way, there is no need to arrange the coil spring and stabilizer bar outside the shock absorber 5, further reducing the number of components of the suspension system as a whole, and making the suspension system as a whole lighter.

[0032] It should be noted that the transverse leaf spring assembly 2 can be made of any material with a certain rigidity and elasticity. For example, the transverse leaf spring assembly 2 can be made of glass fiber reinforced plastic that has been widely used in the prior art. This material is a new functional material made of synthetic resin and glass fiber through a composite process, and has good rigidity and elasticity. Alternatively, any other suitable material with good rigidity and elasticity can also be used, and the present disclosure is not limited to this.

[0033] In some embodiments, reference Figures 1 to 5 As shown, the suspension system further includes a fixing device 4 connected to the fork arm 3 and the transverse leaf spring assembly 2. In this way, the fixing device 4 can fix the relative position of the fork arm 3 and the transverse leaf spring assembly 2 to ensure the movement relationship between the two, thereby further improving the overall stiffness of the suspension system, and when the suspension system is applied to a vehicle, it can also further improve the driving stability of the vehicle.

[0034] In some embodiments, the number of fixing devices 4 can be multiple and arranged at intervals along the length direction of the transverse leaf spring assembly 2. In this way, multiple fixing devices 4 can further fix the transverse leaf spring assembly 2 and the fork arm 3, which can further improve the overall stiffness of the suspension system. It can be understood that, taking the two front wheels of the vehicle as an example, the suspension system generally includes two steering knuckles 1 and two fork arms 3, and the steering knuckles 1 and the fork arms 3 are connected one by one. Under the connection limitation of the above method, one fork arm 3 can be connected to the transverse leaf spring assembly 2 through one or more fixing devices 4, thereby improving the connection and fastening effect between the fork arm 3 and the transverse leaf spring assembly 2.

[0035] Alternatively, the number of the fixing device 4 may also be one, that is, Figure 1 As shown, there is one fixing device 4 , which is respectively connected to the transverse leaf spring assembly 2 and one of the fork arms 3 .

[0036] In some embodiments, the number of the fixing devices 4 is two, and the two fixing devices 4 are symmetrically arranged about the center line of the transverse leaf spring assembly 2 along its own width direction. Through this arrangement, the two fixing devices 4 are symmetrically arranged on the transverse leaf spring assembly 2, which can further improve the balance of the transverse leaf spring assembly 2, and the two fixing devices 4 can be connected to the two forks 3 in a one-to-one correspondence, respectively, so as to fasten the two forks 3 respectively, and also improve the stable connection effect between the transverse leaf spring assembly 2 and the fork arms 3.

[0037] In some embodiments, reference Figures 1 to 5 As shown, the fixing device 4 includes a positioning member 410 and a support rod 420. The positioning member 410 is fixedly connected to the transverse leaf spring assembly 2; the two ends of the support rod 420 are respectively connected to the positioning member 410 and the fork arm 3. In this way, the two ends of the support rod 420 can be rigidly connected to the positioning member 410 and the fork arm 3 respectively. After the positioning member 410 is fixed to the transverse leaf spring assembly 2, the positioning member 410 and the support rod 420 can fix the relative position of the transverse leaf spring assembly 2 and the fork arm 3, thereby reducing the influence of the lateral force when the vehicle turns, improving the stability of the vehicle when turning, and facilitating the operation of the vehicle. At the same time, the rigid connection between the support rod 420, the positioning member 410 and the fork arm 3 can further improve the overall rigidity of the suspension system, thereby making the vehicle more stable during normal driving.

[0038] In some embodiments, reference Figures 1 to 5As shown, the positioning member 410 is sleeved on the transverse leaf spring assembly 2, and the number of the support rods 420 is multiple and arranged at intervals. In this way, before the transverse leaf spring assembly 2 is connected to the steering knuckle 1, the positioning member 410 can be sleeved on the transverse leaf spring assembly 2 and the relative position of the positioning member 410 and the transverse leaf spring assembly 2 can be fixed, and multiple support rods 420 can be respectively connected to the positioning member 410 at intervals, so that the fork arm 3 can be connected to multiple support rods 420 at the same time, and multiple support rods 420 can also be connected to a single positioning member 410 to support the positioning member 410, and at the same time, the transverse leaf spring assembly 2 can also be indirectly supported and fixed in a more stable manner.

[0039] In some embodiments, reference Figures 1 to 5 As shown, there are two support rods 420, and the two support rods 420 are symmetrically arranged about the center line of the transverse leaf spring assembly 2 along its own length direction. In this way, the two support rods 420 can be symmetrically connected to the opposite sides of the positioning member 410, so as to more stably support the transverse leaf spring assembly 2. It should be noted that in order to better stably support and limit the transverse leaf spring assembly 2, according to the above specific implementation method, two positioning members 410 can be symmetrically arranged on the center line of the transverse leaf spring assembly 2 along its own width direction, and each positioning member 410 is symmetrically connected to the two support rods 420, that is, the total A total of four support rods 420 are connected to the fork arm 3, and every two support rods 420 are respectively connected to one of the fork arms 3 and a positioning member 410. Under this arrangement, the four support rods 420 can jointly connect and fix the fork arm 3 and the transverse leaf spring assembly 2 and can support the transverse leaf spring assembly 2, thereby ensuring the movement relationship between the fork arm 3 and the transverse leaf spring assembly 2, thereby improving the overall stiffness of the suspension system, and further reducing the impact of lateral force when the vehicle turns, making it easier for people to better control the vehicle, thereby improving the stability of the vehicle when turning and reducing the possibility of the vehicle rolling over when turning.

[0040] In some embodiments, reference Figures 1 to 5 As shown, the fork arm 3 includes a first fork 301 and a second fork 302 connected to each other, at least one support rod 420 is connected to the first fork 301, and at least another support rod 420 is connected to the second fork 302. In this way, a single fork on the fork arm 3 can be connected to one or more support rods 420 separately, and multiple support rods 420 can support the transverse leaf spring assembly 2 more evenly, thereby improving the stability of the support. Figure 4 An embodiment is exemplarily shown in which the first fork 301 and the second fork 302 are each connected to the positioning member 410 via a supporting rod 420 , but the present disclosure is not limited thereto.

[0041] In addition, in the above specific embodiments, the shape of the fork arm 3 can also be any suitable shape, such as a single arm, an A-arm or any other fork arm shape that can be applied to the suspension system, and the support rod 420 can also be connected to the various fork arms mentioned in the above method in any suitable form, but the present disclosure is not limited to this.

[0042] In some embodiments, reference Figures 1 to 5 As shown, the support rod 420 includes a first section 421, a second section 422 and a third section 423 connected in sequence from the positioning member 410 toward the fork arm 3. The first section 421, the second section 422 and the third section 423 are in a Z shape. The second section 422 extends in the vertical direction. The first section 421 extends from the second section 422 toward the transverse leaf spring assembly 2 and obliquely upward. The third section 423 extends from the second section 422 toward the fork arm 3 and obliquely downward. In this way, the inclined first section 421 and the third section 423 can reduce the length of the support rod 420 itself compared to the horizontally arranged first section 421 and the third section 423, so as to achieve a lightweight effect. Figure 4 As shown, the first section 421 extends upwardly and obliquely toward the direction close to the transverse leaf spring assembly 2, which can reduce the wear of the corner where the first section 421 and the second section 422 meet due to the normal operation of the suspension system. Similarly, the third section 423 extends downwardly and obliquely toward the direction of the fork arm 3, which can also reduce the wear of the corner where the second section 422 and the third section 423 meet due to the normal operation of the suspension system. Figure 4 As shown, the angle between the first section 421 and the second section 422 , and the angle between the second section 422 and the third section 423 are both obtuse angles, thereby reducing the wear of the support rod 420 .

[0043] It should be noted that the support rod 420 can also be constructed as a rod structure of any suitable structural type. For example, the support rod 420 can be constructed as a support rod with a polygonal cross-section, for example, it can be a triangular, quadrilateral or polygonal support rod, but the present disclosure is not limited to this.

[0044] In some embodiments, reference Figures 1 to 5 As shown, the transverse leaf spring assembly 2 includes a transverse leaf spring body 210 and a connecting assembly 220. The transverse leaf spring body 210 is connected to the steering knuckle 1 through the connecting assembly 220. The connecting assembly 220 includes a connecting plate 221 connected to the transverse leaf spring body 210. The connecting plate 221 is connected to the transverse leaf spring body 210 through a plurality of connecting members 222. The installation positions of the plurality of connecting members 222 form a polygonal outline. In this way, the connecting assembly 220 can connect the transverse leaf spring body 210 to the steering knuckle 1, and can refer to Figure 2As shown, the transverse leaf spring body 210 can be an integrally formed plate body, and the side of the transverse leaf spring body 210 can be provided with an opening 211, and one end of the connecting plate 221 can be inserted into the opening 211 and connected to the transverse leaf spring body 210 through a plurality of connecting members 222, so that the steering knuckle 1 can be fixedly connected to the transverse leaf spring body 210, and, with reference to Figure 5 As shown, the installation positions of the multiple connecting members 222 form a polygonal outline, which can further improve the stability of the connection between the connecting plate 221 and the transverse leaf spring body 210.

[0045] Based on the above specific implementation methods, you can refer to Figure 5 As shown, a plurality of first mounting holes may be provided on the connecting plate 221, and a plurality of second mounting holes corresponding to the positions of the first mounting holes may be provided on the transverse leaf spring body 210. After the connecting plate 221 is inserted into the transverse leaf spring body 210 from the opening 211, the plurality of first mounting holes and the plurality of second mounting holes may be corresponded to coaxial positions. At this time, the connecting member 222 may be passed through the first mounting hole and the second mounting hole to connect and fix the connecting plate 221 and the transverse leaf spring body 210. In addition, in order to further improve the stability of the connection between the transverse leaf spring body 210 and the connecting plate 221, the number of the first mounting holes and the second mounting holes may be three, and the three first mounting holes and the three second mounting holes are arranged in an equilateral triangle. In this way, three connecting members 222 may be passed through the three first mounting holes and the three second mounting holes, thereby improving the stability of the connection between the transverse leaf spring body 210 and the connecting plate 221.

[0046] It should be noted that the present disclosure is not limited to the above-mentioned connection method through three first mounting holes, three second mounting holes and three connecting members 222. The number of the first mounting holes, the second mounting holes and the connecting members 222 can also be four or more. Any appropriate number can be selected according to the specific shapes of the connecting plate 221 and the transverse leaf spring body 210, and the arrangement method can also be selected in any way that can better fasten the connecting plate 221 and the transverse leaf spring body 210. The present disclosure is not limited to this.

[0047] In addition, the first mounting hole, the second mounting hole and the connecting member 222 mentioned in the above specific embodiment can also be constructed as any suitable structure. For example, the first mounting hole can be a first threaded hole, the second mounting hole can be a second threaded hole, and the connecting member 222 can be constructed as a fastener such as a bolt threadedly connected to the first threaded hole and the second threaded hole. Alternatively, one of the first mounting hole and the second mounting hole can be constructed as a threaded hole, and the other can be constructed as a through hole, which can also be connected by fasteners such as bolts. The present disclosure does not make specific limitations on this.

[0048] In order to make it easier for those skilled in the art to understand the connection method of the suspension system provided by the present disclosure, reference can be made to Figure 1 As shown, the connecting assembly 220 may further include a ball pin connected to the connecting plate 221, the transverse leaf spring body 210 may be connected to the upper portion of the steering knuckle 1 via the connecting plate 221 and the ball pin, the fork arm 3 may be connected to the steering knuckle via another ball pin (not shown in the figure), and may be connected to the frame 6 via a bushing, the steering knuckle 1 may also be connected to the brake, the shock absorber 5 may be mounted on the fork arm 3 via a bushing, and a certain safety gap may be maintained with the transverse leaf spring body 210, for example, 10-15 mm, and at the same time, the shock absorber 5 may be arranged tilted relative to the vertical direction along the direction of travel of the vehicle.

[0049] According to a second aspect of the present disclosure, a vehicle is provided, which includes the suspension system mentioned in the above-mentioned specific embodiments, and the suspension system has all the beneficial effects in the above-mentioned specific embodiments, wherein the vehicle can be a fuel vehicle or a new energy vehicle, etc. By applying the vehicle with the suspension system, it has a lightweight effect and can also have better controllability. When the vehicle turns, the suspension system can reduce the influence of lateral force, thereby improving the stability of the vehicle when turning.

[0050] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0051] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0052] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A suspension system, characterized in that: It comprises a steering knuckle, a transverse leaf spring assembly and a fork arm, wherein the steering knuckle is connected to the transverse leaf spring assembly and the fork arm respectively, and the transverse leaf spring assembly is located above the fork arm.

2. The suspension system according to claim 1, characterized in that: The suspension system also includes a fixing device connected to the wishbone and the transverse leaf spring assembly.

3. The suspension system according to claim 2, characterized in that: The number of the fixing devices is plural and they are arranged at intervals along the length direction of the transverse leaf spring assembly.

4. The suspension system according to claim 2, characterized in that: The number of the fixing devices is two, and the two fixing devices are symmetrically arranged with respect to the center line of the transverse leaf spring assembly along its own width direction.

5. The suspension system according to claim 2, characterized in that: The fixing device comprises: A positioning member, fixedly connected to the transverse leaf spring assembly; and The supporting rod has two ends respectively connected to the positioning member and the fork arm.

6. The suspension system according to claim 5, characterized in that: The positioning member is sleeved on the transverse leaf spring assembly, and the supporting rods are multiple and arranged at intervals.

7. The suspension system according to claim 5, characterized in that: The number of the support rods is two, and the two support rods are symmetrically arranged about the center line of the transverse leaf spring assembly along its own length direction.

8. The suspension system according to claim 5, characterized in that: The fork arm includes a first fork and a second fork connected to each other, at least one of the support rods is connected to the first fork, and at least another of the support rods is connected to the second fork.

9. The suspension system according to claim 5, characterized in that: The support rod includes a first section, a second section and a third section connected in sequence from the positioning member toward the fork arm, the first section, the second section and the third section are Z-shaped, the second section extends in a vertical direction, the first section extends from the second section toward the transverse leaf spring assembly and obliquely upward, and the third section extends from the second section toward the fork arm and obliquely downward.

10. The suspension system according to claim 1, characterized in that The transverse leaf spring assembly includes a transverse leaf spring body and a connecting component, the transverse leaf spring body is connected to the steering knuckle via the connecting component, the connecting component includes a connecting plate connected to the transverse leaf spring body, the connecting plate is connected to the transverse leaf spring body via a plurality of connecting members, and the installation positions of the plurality of connecting members form a polygonal outline.

11. The suspension system according to claim 1, characterized in that: The suspension system further includes a shock absorber connected to the steering knuckle or the wishbone.

12. A vehicle, characterized in that: Comprising a suspension system as claimed in any one of claims 1-11.

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