Active stabilizer bar and vehicle

Abstract

The application relates to the technical field of vehicle components, and provides an active stabilizer bar and a vehicle. According to the active stabilizer bar provided by the application, compared with the prior art in which a shock absorber is arranged on a three-stage speed reducer, the active stabilizer bar cancels the shock absorber, and the speed reducer assembly is directly connected to a transmission flange, so that power is transmitted to an output end flange through direct engagement of the transmission flange, and then transmitted to an output swing arm. Therefore, according to the active stabilizer bar provided by the application, by canceling the shock absorber part of the speed reducer assembly, the overall length of the speed reducer assembly and the transmission flange can be shortened, and meanwhile, the fixing mode of the locking bolt and the locking bolt gasket can be canceled, so that the assembly process is reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle component technology, and in particular to an active stabilizer bar and a vehicle. Background Technology

[0002] Active stabilizer bars are widely used in many high-end models both domestically and internationally due to their ability to effectively resist body roll, playing a crucial role in vehicle driving stability. As a key component of the automotive chassis, the active stabilizer bar needs to fulfill its functional requirements while maintaining the smallest possible size, especially in a compact chassis. Summary of the Invention

[0003] In view of this, this application provides an active stabilizer bar and a vehicle, with the aim of solving the above-mentioned technical problems to a certain extent.

[0004] According to a first aspect of this application, an active stabilizer bar is provided, the active stabilizer bar including a reducer assembly, an output flange, and an output rocker arm. The reducer assembly includes a reducer component and a transmission flange that are rigidly connected. The transmission flange is engaged with the output flange for transmission. The output flange is connected to the output rocker arm so that the reducer assembly drives the output rocker arm to rotate.

[0005] Based on the above technical solutions, optionally, the active stabilizer bar further includes a locking nut, which is used to lock the engagement between the transmission flange and the output flange. The output flange has a diameter larger than that of the output rocker arm, the output rocker arm passes through the locking nut, and the output flange is located inside the locking nut.

[0006] Based on the above technical solutions, optionally, the active stabilizer bar also includes a housing and an output bearing, wherein the output bearing is disposed between the transmission flange and the housing, so that the transmission flange rotates relative to the housing.

[0007] Based on the above technical solutions, optionally, the transmission flange is provided with an external thread at one end near the output rocker arm, the locking nut is screwed on the outside of the external thread of the transmission flange, one side of the inner ring of the output bearing abuts against the reducer assembly, and the other side of the inner ring of the output bearing abuts against the axial end face of the locking nut.

[0008] Based on the above technical solutions, optionally, the active stabilizer bar also includes a positioning ring, which is sleeved on the outside of the locking nut, and the outer ring of the output bearing abuts against the positioning ring to position the outer ring on the axial position of the transmission flange.

[0009] Based on the above technical solutions, optionally, the inner wall of the housing has internal threads, and the positioning ring is screwed onto the internal threads.

[0010] Based on the above technical solutions, optionally, the side of the outer ring away from the positioning ring abuts against the inner wall of the housing.

[0011] Based on the above technical solutions, optionally, the active stabilizer bar also includes an oil seal, which is located on the axial outer side of the positioning ring, sleeved on the outer side of the locking nut, and located inside the housing.

[0012] Based on the above technical solutions, the active stabilizer bar may optionally include a seal, which is clamped between the output flange and the locking nut.

[0013] According to a second aspect of this application, a vehicle is provided, the vehicle including the active stabilizer bar as described above.

[0014] According to the active stabilizer bar provided in this application, compared with the existing technology that sets a damper on a three-stage reducer and uses the detachable plug-in connection between the damper and the damper output flange to transmit power to the damper output flange, and then from the damper output flange to the output flange, and then to the output rocker arm, the active stabilizer bar provided in this application eliminates the damper. The reducer assembly is directly connected to the transmission flange, and the transmission flange transmits power to the output flange through direct engagement, and then to the output rocker arm.

[0015] Therefore, according to the active stabilizer bar provided in this application, by eliminating the damper part of the reducer assembly, the overall length of the reducer assembly and the transmission flange can be shortened. At the same time, the method of fixing with locking bolts and locking bolt washers can be eliminated, reducing assembly steps.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a three-dimensional view of a portion of the structure of an active stabilizer bar provided according to an embodiment of this application is shown.

[0019] Figure 2 A schematic diagram of a three-dimensional view of another portion of the structure of an active stabilizer bar provided according to an embodiment of this application is shown.

[0020] Figure 3 A schematic diagram of a three-dimensional view of another portion of the structure of an active stabilizer bar provided according to an embodiment of this application is shown.

[0021] Figure 4 A schematic cross-sectional view of an active stabilizer bar provided according to an embodiment of this application is shown.

[0022] Figure label: 1-Output rocker arm; 2-O-ring; 3-Oil seal; 4-Positioning ring; 5-Output bearing; 51-Inner ring; 52-Outer ring; 6-Reducer assembly; 61-Transmission flange; 62-Reducer component; 7-Housing; 8-Output end flange; 9-Locking nut. Detailed Implementation

[0023] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, 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 application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0027] According to a first aspect of the embodiments of this application, an active stabilizing bar is provided, which will be described below in conjunction with... Figures 1 to 4 Describe in detail the structure and working principle of the active stabilizer bar.

[0028] According to the embodiments of this application, the active stabilizer bar includes a reducer assembly 6, an output flange 8, and an output rocker arm 1.

[0029] In an embodiment, the reducer assembly 6 includes a reducer component 62 and a transmission flange 61 that are rigidly connected. The transmission flange 61 is engaged with the output flange 8 for transmission connection. The output flange 8 is connected to the output rocker arm 1 so that the reducer assembly 62 drives the output rocker arm 1 to rotate.

[0030] Thus, according to the active stabilizer bar provided in the embodiments of this application, compared with the existing solution in which a damper is set on a three-stage reducer and the power is transmitted to the damper output flange by the detachable plug-in connection between the damper and the damper output flange, and then from the damper output flange to the output end flange 8, and then to the output rocker arm, the active stabilizer bar provided in the embodiments of this application eliminates the damper. The reducer assembly 62 is directly connected to the transmission flange 61, and the power is transmitted to the output end flange 8 through direct engagement by the transmission flange 61, and then to the output rocker arm 1.

[0031] Therefore, according to the active stabilizer bar provided in the embodiments of this application, by eliminating the damper part of the reducer assembly 62, the overall length of the reducer assembly 62 and the transmission flange 61 can be shortened. At the same time, the method of fixing with locking bolts and locking bolt washers can be eliminated, reducing assembly steps.

[0032] Furthermore, the rigid connection between the reducer assembly 62 and the transmission flange can be integrally formed, meaning there are no other connecting parts, such as other elastic connecting parts, between them.

[0033] It should be noted that the connection method between the transmission flange 61 and the output flange 8 is the same as the connection method between the output flange and the output flange 8 that cooperate with the original shock absorber in the prior art, that is, the cooperation is achieved by the meshing of the end teeth.

[0034] According to the active stabilizer bar provided in the embodiments of this application, the active stabilizer bar may further include a housing 7 and an output bearing 5. The output bearing 5 is disposed between the transmission flange 61 and the housing 7 so that the transmission flange 61 rotates relative to the housing 7.

[0035] In this embodiment, the reducer assembly 62 is used to drive the transmission flange 61 to rotate, thereby causing the output flange 8 to rotate. The housing 7 is provided to maintain the stability of this rotation process. Specifically, the reducer assembly 62 can be assembled inside the housing 7. The reducer assembly 62 can be, for example, a three-stage reducer, that is, it can include a three-stage reducer assembly, a two-stage reducer assembly, and a first-stage reducer assembled sequentially along the axial direction.

[0036] In this embodiment, the end face of the reducer assembly 6 exposed on the outside of the housing 7 may have an interface for connecting to an external motor. After docking with the external motor, the reducer assembly 6 can be driven to rotate by the external motor, thereby realizing the power transmission process described above.

[0037] In the embodiment, the output bearing 5 may be, for example, a double-row ball bearing with relatively good radial load capacity. Depending on the load, an angular contact ball bearing that can also bear axial load, i.e., a double-row angular contact ball bearing, may be selected. The positioning method of the output bearing 5 will be further described in the following description.

[0038] According to the active stabilizer bar provided in the embodiments of this application, the active stabilizer bar also includes a locking nut 9, which is used to lock the meshing connection between the transmission flange 61 and the output flange 8. The transmission flange 61 has an external thread at one end near the output rocker arm 1. The locking nut 9 is screwed onto the outside of the external thread of the transmission flange 61. One side of the inner ring of the output bearing 5 abuts against the reducer assembly 62, and the other side of the inner ring of the output bearing 5 abuts against the axial end face of the locking nut 9.

[0039] In this embodiment, specifically, the positioning of the inner ring of the output bearing 5 is such that the axial translational freedom of the inner ring 51 of the output bearing 5 is restricted. Here, one side of the inner ring in the axial direction can abut against the reducer assembly 62. As an example, it can abut against the shoulder formed by the diameter change between the transmission flange 61 and the reducer assembly 62, so that this side of the inner ring 51 of the output bearing 5 can abut against it, thereby preventing the inner ring from moving further toward the side where the reducer assembly 62 is located.

[0040] In this embodiment, the other side of the inner ring 51 of the output bearing 5 abuts against the axial end face of the locking nut 9, which prevents the inner ring 51 of the output bearing 5 from moving further toward the side where the output rocker arm 1 is located, and it is sandwiched between the locking nut 9 and the reducer assembly 62.

[0041] In the embodiments, the active stabilizer bar provided according to the embodiments of this application performs the function reuse of the locking nut 9. Compared with the locking nut 9 in the prior art, which only has the function of flange-to-flange locking, the active stabilizer bar provided according to the embodiments of this application also acts as a positioning component for the output bearing 5, without the need to set the positioning ring 4 on the side where the output rocker arm 1 is located in the prior art to position the inner ring 51 of the output bearing 5 separately. This simplifies the structure of the active stabilizer bar and reduces assembly complexity and assembly steps.

[0042] In other words, according to the active stabilizer bar provided in the embodiments of this application, the locking nut 9 serves both to lock the transmission flange 61 and the output flange 8, and to position the inner ring 51 of the output bearing 5.

[0043] In an embodiment, the output flange 8 may be disc-shaped and may be connected to the output rocker arm 1. For example, the two may be formed as an integral structure. Therefore, the output flange 8 is formed as an annular flange at the end of the output rocker arm 1 near the reducer assembly 62. The side of the flange near the reducer assembly 62 has end teeth as described above for meshing with the end teeth of the transmission flange 61.

[0044] In an embodiment, the locking nut 9 may be, for example, a cylindrical structure with internal threads on the outer side of its inner wall for screwing onto the end of the transmission flange 61. The bottom of the locking nut 9 may have a through hole with a diameter that allows the output rocker arm 1 to pass through it, but the diameter of the through hole is smaller than the diameter of the output flange 8. This allows the entire structure of the output flange 8 and the output rocker arm 1 to be inserted into the locking nut 9 from the side where the reducer assembly 62 is located (this only indicates the orientation and does not mean that the reducer assembly 62 is already on that side when this assembly is performed), and allows the output rocker arm 1 to pass through the through hole, ultimately pressing the output flange 8 against the bottom of the locking nut 9.

[0045] Subsequently, the transmission flange 61 can be screwed into the locking nut 9, thereby engaging the transmission flange 61 with the end teeth of the output flange 8.

[0046] According to the active stabilizer bar provided in the embodiments of this application, the active stabilizer bar may further include a positioning ring 4, which may be sleeved on the outside of the locking nut 9. The first positioning ring 4 is used to detachably connect to the inner sidewall of the housing 7 of the locking nut 9 to position the axial position of the outer ring on the transmission flange 61.

[0047] Here, as an example, on the side where the locking nut 9 is located, a positioning ring 4 is provided on the outer side of the locking nut 9. The positioning ring 4 may have an external thread and be screwed onto the matching internal thread provided on the inner wall of the housing 7, thereby using its own end face near the reducer assembly 62 as a positioning structure to abut against the outer ring 52 of the output bearing 5.

[0048] According to the active stabilizing bar provided in the embodiments of this application, the side of the outer ring away from the positioning ring 4 can abut against the inner wall of the housing 7, for example, a shoulder protruding into the interior of the housing 7 on the inner wall of the housing 7, and the outer ring abuts against the shoulder to play a stopping role.

[0049] According to the active stabilizer bar provided in the embodiments of this application, the active stabilizer bar may further include an oil seal 3. The oil seal 3 may be disposed on the axial outer side of the positioning ring 4. The oil seal 3 is sleeved on the outer side of the locking nut 9. The oil seal 3 is disposed inside the housing 7, thereby preventing the grease inside the housing 7 from leaking out at the end side.

[0050] The active stabilizer bar provided according to the embodiments of this application also includes a seal, which is sandwiched between the bottom of the output flange 8 and the locking nut 9. The seal can be, for example, an O-ring 2, to ensure that the bottom of the output flange 8 and the locking nut 9 can be sealed.

[0051] Based on the above description, the structure of the active stabilizer bar will be described below from the perspective of more specific examples.

[0052] As described above, by eliminating the damper part of the three-stage reducer assembly 6, the length of the reducer outer cylinder wall assembly, i.e. the housing 7, can be shortened by 24.5mm. At the same time, the locking bolts and locking bolt washers can be eliminated, reducing assembly steps.

[0053] Furthermore, in the existing technology, the pipe diameter and thickness of the output rocker arm 1 and the fixed rocker arm are φ36*6mm. Since the original shock absorber has been eliminated, the three-stage reducer assembly 6 will directly output power to the output rocker arm 1 assembly. When the road impact is transmitted to the output rocker arm 1 assembly, due to its high stiffness, most of the impact will be output to the reducer. Considering that the active stabilizer bar itself has NVH (Noise, Vibration, Harshness) performance requirements, the pipe diameter and thickness are adjusted to φ34*4 mm. The stiffness of the rocker arm is reduced, which plays a key role in absorbing and delaying part of the impact.

[0054] Based on the above description, the installation procedure after structural adjustment is as follows: (1) The oil seal 3 and the O-ring 2 are pressed into place inside the lock nut 9; (2) The output bearing 5 is press-fitted onto the flange of the three-stage reducer assembly 6, and the three-stage reducer assembly 6 is installed into the housing 7; (3) Tighten the positioning ring 4 to the housing 7 to fix the outer ring of the output bearing 5; (4) Engage the end teeth of the output flange 8 with the end teeth of the transmission flange 61, tighten the lock nut 9, and complete the installation of the output rocker arm 1.

[0055] According to a second aspect of the embodiments of this application, a vehicle is provided, the vehicle including the active stabilizer bar as described above. It also has the aforementioned beneficial effects, which will not be repeated here.

[0056] The above are merely preferred embodiments of this application and do not limit the scope of protection of this application. Any equivalent structural transformations made based on the innovative concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. An active stabilizer bar, characterized in that, The active stabilizer bar includes a reducer assembly, an output flange, and an output rocker arm. The reducer assembly includes a reducer component and a transmission flange that are rigidly connected. The transmission flange is engaged with the output flange for transmission. The output flange is connected to the output rocker arm so that the reducer assembly drives the output rocker arm to rotate.

2. The active stabilizer bar according to claim 1, characterized in that, The active stabilizer bar also includes a locking nut, which is used to lock the engagement between the transmission flange and the output flange. The output flange has a diameter larger than that of the output rocker arm. The output rocker arm passes through the locking nut, and the output flange is located inside the locking nut.

3. The active stabilizer bar according to claim 2, characterized in that, The active stabilizer bar also includes a housing and an output bearing, the output bearing being disposed between the drive flange and the housing to allow the drive flange to rotate relative to the housing.

4. The active stabilizer bar according to claim 3, characterized in that, The transmission flange has an external thread at one end near the output rocker arm. The locking nut is screwed onto the outside of the external thread of the transmission flange. One side of the inner ring of the output bearing abuts against the reducer assembly, and the other side of the inner ring of the output bearing abuts against the axial end face of the locking nut.

5. The active stabilizer bar according to claim 3 or 4, characterized in that, The active stabilizer bar also includes a positioning ring, which is sleeved on the outside of the locking nut. The outer ring of the output bearing abuts against the positioning ring to position the outer ring axially on the transmission flange.

6. The active stabilizer bar according to claim 5, characterized in that, The inner wall of the housing has internal threads, and the positioning ring is screwed onto the internal threads.

7. The active stabilizer bar according to claim 6, characterized in that, The side of the outer ring furthest from the positioning ring abuts against the inner wall of the housing.

8. The active stabilizer bar according to claim 6, characterized in that, The active stabilizer bar also includes an oil seal, which is located axially outside the positioning ring, sleeved on the outside of the locking nut, and located inside the housing.

9. The active stabilizer bar according to claim 2, characterized in that, The active stabilizer bar also includes a seal, which is sandwiched between the output flange and the locking nut.

10. A vehicle, characterized in that, The vehicle includes an active stabilizer bar as described in any one of claims 1 to 9.

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