Active stabilizer bar, assembling method and vehicle

Abstract

The invention relates to the field of vehicle parts, and provides an active stabilizer bar, an assembling method and a vehicle. According to the driving stabilizer bar provided by the invention, compared with the prior art that the output rocker arm flange and the vibration buffer output flange which are assembled in a split mode are adopted, and power between the vibration buffer and the output rocker arm is transmitted through the sleeve which is of an integrated structure, so that the power between the vibration buffer and the output rocker arm is transmitted; therefore, a locking nut, a locking bolt, a locking bolt gasket and an O-shaped ring which are originally required to be arranged for assembling the output rocker arm flange and the vibration absorber output flange can be omitted.

Description

Technical Field

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

[0002] Currently, active stabilizer bars are widely used in some vehicle models. The main function of an active stabilizer bar is to generate a torque that resists body roll when the vehicle body tilts while driving, thereby keeping the vehicle body stable.

[0003] Typically, the motor of an active stabilizer bar starts and outputs torque after receiving a signal, which is transmitted to the output rocker arm through a multi-stage reducer assembly. However, the current challenge is to complete the mechanical installation between the output rocker arm and the reducer assembly using a simple and efficient structure, as a complex installation structure would increase the complexity of the active stabilizer bar manufacturing process and assembly time.

[0004] In addition, a rubber damping mechanism is needed between the output rocker arm and the reducer assembly to absorb the load when the output rocker arm rotates. At the same time, the service life of the rubber damping mechanism between the output rocker arm and the reducer assembly must also be addressed. If the rubber damping mechanism fails prematurely within the service life of the active stabilizer bar, the service life of the active stabilizer bar will end prematurely. Summary of the Invention

[0005] In view of this, this application provides an active stabilizer bar, an assembly method, and a vehicle, with the aim of providing an active stabilizer bar that has fewer assembly steps and time, and is robust and reliable, so as to solve the above-mentioned technical problems to a certain extent.

[0006] The active stabilizer provided in the first aspect of this application includes a damper, a sleeve, and an output rocker arm. The damper is connected to the sleeve via a transmission, and the output rocker arm is connected to the sleeve, so that the damper drives the output rocker arm to rotate. The sleeve is formed as a single unit.

[0007] Based on the above technical solutions, the active stabilizer bar may optionally include a housing and a bearing, wherein the bearing is disposed between the sleeve and the housing, so that the sleeve can rotate relative to the housing.

[0008] Optionally, based on any of the above technical solutions, the active stabilizer bar further includes a reducer assembly, the reducer assembly is provided at the end of the damper away from the output rocker arm, the sleeve includes a sleeve body and a positioning shoulder, the sleeve has an axial direction, the positioning shoulder is provided at the end of the sleeve body away from the reducer assembly, and the inner ring of the bearing abuts against the positioning shoulder.

[0009] Optionally, based on any of the above technical solutions, the active stabilizer bar further includes a first positioning ring, which is sleeved on the outside of the positioning shoulder. The first positioning ring is used to detachably connect to the housing. The first positioning ring abuts against the outer ring of the bearing to position the axial position of the outer ring of the bearing on the sleeve. The side of the outer ring of the bearing away from the first positioning ring abuts against the interior of the housing.

[0010] Optionally, based on any of the above technical solutions, the active stabilizer bar may further include an oil seal, which is sleeved on the outside of the output rocker arm and disposed between the positioning shoulder and the housing.

[0011] Optionally, based on any of the above technical solutions, the active stabilizer bar further includes a second positioning ring, which is disposed on the side of the bearing near the reducer assembly. The second positioning ring is detachably connected to the sleeve and abuts against the inner ring of the bearing to position the axial position of the inner ring of the bearing on the sleeve.

[0012] Based on any of the above technical solutions, optionally, the damper has at least five petal structures arranged sequentially along the circumference, the damper further includes a flexible portion covering the outside of the petal structures, the sleeve has a cavity with a shape adapted to the at least five petal structures, and the at least five petal structures are inserted into the cavity.

[0013] According to a second aspect of the embodiments of this application, an assembly method is provided, the assembly method being used to assemble the active stabilizer bar as described above, the assembly method comprising: The oil seal is pressed into the sleeve and suspended on the output rocker arm; Position the inner ring of the bearing on the sleeve; The output rocker arm is installed into the assembly formed by the housing and the reducer assembly.

[0014] Optionally, based on any of the above technical solutions, the assembly method further includes: Position the outer ring of the bearing; The oil seal is pressed into the predetermined position inside the sleeve, so that the oil seal is installed in place.

[0015] According to a third aspect of this application, a vehicle is provided, the vehicle including the active stabilizer bar as described above.

[0016] Thus, according to the active stabilizer bar provided in this application, compared with the prior art where the output rocker arm flange and the damper output flange are separately assembled, the active stabilizer bar provided in this application uses a sleeve formed as an integral structure to transmit the power between the damper and the output rocker arm. This eliminates the need for locking nuts, locking bolts, locking bolt washers, and O-rings that were originally required for assembling the flange of the output rocker arm and the damper output flange.

[0017] Therefore, the active stabilizer bar provided in this application reduces the number of parts and effectively reduces the complexity of its assembly, thereby reducing the difficulty of installing the output rocker arm, reducing installation steps and shortening installation time. On the other hand, the omitted parts can provide more axial space for lengthening the damper, thereby improving its vibration resistance.

[0018] 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

[0019] 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.

[0020] Figure 1 A schematic diagram of the assembly structure of the output rocker arm and sleeve of the active stabilizer bar provided according to an embodiment of this application is shown.

[0021] Figure 2 A schematic diagram of the damper structure of an active stabilizer bar according to an embodiment of this application is shown.

[0022] Figure 3 A schematic diagram of the assembly structure of the active stabilizer bar provided according to an embodiment of this application is shown.

[0023] Figure 4 An exploded view of an active stabilizer bar provided according to an embodiment of this application is shown.

[0024] Figure 5 A schematic diagram of the assembly of the output rocker arm flange of the active stabilizer bar and the output flange of the damper in the prior art is shown.

[0025] Figure label: 1-Sleeve; 101-Cylinder body; 102-Positioning shoulder; 2-Oil seal; 3-First positioning ring; 4-Bearing; 5-Second positioning ring; 8-Damper assembly; 81-Damper; 82-Three-stage reducer assembly; 11-Housing; 12-Output rocker arm.

[0026] 13-Output rocker arm flange; 14-Vibration damper output flange. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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 5 Describe in detail the structure and working principle of the active stabilizer bar.

[0032] According to the active stabilizer provided in the embodiments of this application, the active stabilizer includes a damper 81, a sleeve 1, and an output rocker arm 12. In the embodiments, the damper 81 is connected to the sleeve 1 in a driving connection, and the output rocker arm 12 is connected to the sleeve 1, so that the damper 81 drives the output rocker arm 12 to rotate.

[0033] Based on this, in the embodiment, the sleeve 1 is formed as an integral structure.

[0034] Thus, the active stabilizing bar provided according to the embodiments of this application, compared with the prior art (as shown in the appendix) Figure 5 As shown in the figure, the output rocker arm flange 13 and the damper output flange 14 are assembled separately. Regarding the power between the damper and the output rocker arm 12, the active stabilizer bar provided in the embodiment of this application uses the sleeve 1, which is formed as an integral structure, to transmit the power between the damper assembly 8 and the output rocker arm 12. This eliminates the need for the locking nuts, locking bolts, locking bolt washers and O-rings that were originally required for assembling the output rocker arm flange 13 and the damper output flange 14.

[0035] Therefore, the active stabilizer bar provided according to the embodiments of this application reduces the number of parts of the active stabilizer bar, effectively reducing the complexity of assembling the active stabilizer bar, thereby reducing the difficulty of installing the output rocker arm 12, reducing the installation process and shortening the installation time. On the other hand, the omitted parts can provide more axial space for the damper 81 to be lengthened, thereby improving the vibration resistance of the damper 81.

[0036] In the embodiment, the sleeve 1 provided as described above is essentially a sleeve 1 structure that integrates the flange of the output rocker arm 12, which was originally set as separate parts in the prior art, with the output flange of the damper, so as to detachably cooperate with the damper 81 and transmit power from the damper 81 to the output rocker arm 12.

[0037] In this embodiment, the sleeve 1 can be forged into a rough blank and then machined. Furthermore, the damper 81 can be driven by an existing three-stage reducer, i.e., by a reducer assembly. The metal frame of the three-stage reducer assembly 82 can also be formed by forging followed by machining. For example, the three-stage reducer assembly 82 is as follows... Figure 4 As shown in the image.

[0038] According to the active stabilizer bar provided in the embodiments of this application, the active stabilizer bar may further include a housing 11 and a bearing 4. The bearing 4 may be disposed between the sleeve 1 and the housing 11 so that the sleeve 1 can rotate relative to the housing 11.

[0039] Here, the housing 11 can be, for example, a cylindrical housing 11, which can be coaxially arranged with the damper 81 and the sleeve 1. The sleeve 1, the damper 81, and the three-stage reducer assembly 82 can all be arranged inside the housing 11.

[0040] In this embodiment, the power transmission direction is from the three-stage reducer assembly 82 (external motor) to the damper 81, from the damper 81 to the sleeve 1, and from the sleeve 1 to the output rocker arm 12. Therefore, in order to ensure stable power output, a bearing 4 is fitted on the outer side of the sleeve 1 to support the rotation of the sleeve 1 relative to the housing 11.

[0041] As an example, bearing 4 can be, for instance, a double-row angular contact ball bearing with good radial load capacity and the ability to withstand axial loads.

[0042] According to the active stabilizer bar provided in the embodiments of this application, the sleeve 1 includes a sleeve body 101 and a positioning shoulder 102. The sleeve 1 has an axial direction, and the positioning shoulder 102 is disposed at one end of the sleeve body 101 away from the reducer assembly. The inner ring of the bearing 4 abuts against the positioning shoulder 102.

[0043] In this embodiment, the outer shape of the cylinder body 101 can be cylindrical, and the location of the positioning shoulder 102 is the end near the output rocker arm 12, with the inner ring of the bearing 4 abutting against the positioning shoulder 102.

[0044] According to the active stabilizer provided in the embodiments of this application, the active stabilizer may further include a first positioning ring 3. The first positioning ring 3 may be sleeved on the outside of the positioning shoulder 102. The first positioning ring 3 is used to detachably connect with the housing. The first positioning ring 3 abuts against the outer ring of the bearing 4 to position the axial position of the outer ring of the bearing 4 on the sleeve 1.

[0045] Here, as an example, the first positioning ring 3 may have external threads, and the inner side of the housing may have external threads. The first positioning ring 3 is connected to the inner side of the housing by threads, and the first positioning ring 3 can abut against the outer ring of the bearing 4, thereby achieving the positioning of the outer ring of the bearing 4.

[0046] As described above, according to the active stabilizer bar provided in the embodiments of this application, the active stabilizer bar may further include an oil seal 2. The oil seal 2 may be sleeved on the outside of the output rocker arm 12. The oil seal 2 is disposed between the positioning shoulder 102 and the housing. Here, the function of the oil seal 2 is to prevent the lubricating grease from leaking out.

[0047] According to the active stabilizer bar provided in the embodiments of this application, the active stabilizer bar may further include a second positioning ring 5. The second positioning ring 5 is disposed on the side of the bearing 4 near the reducer assembly. The second positioning ring 5 is detachably connected to the sleeve 1 to position the axial position of the inner ring on the sleeve 1. In this way, the second positioning ring 5 cooperates with the positioning shoulder 102 as described above to position the inner ring of the bearing 4 on the outside of the sleeve 1.

[0048] Here, the inner side of the second positioning ring 5 is provided with an internal thread, which engages with the external thread on the outer side of the sleeve 1, thereby achieving a detachable connection through a threaded connection.

[0049] Furthermore, in this embodiment, the sleeve 1 and the inner ring of the bearing 4 are in a clearance fit, with a maximum clearance range of 0.025mm to 0.069mm. This maximum clearance can be, for example, 0.030mm, 0.035mm, 0.040mm, 0.045mm, 0.050mm, 0.055mm, 0.060mm, or 0.065mm.

[0050] According to the active stabilizer bar provided in the embodiments of this application, the end of the outer ring of the bearing 4 away from the oil seal 2 can abut against the shoulder formed inside the housing 11.

[0051] According to the active stabilizing bar provided in the embodiments of this application, the damper 81 can have at least five petal structures arranged sequentially along the circumference, such as five, six, seven, or even more petal structures; here, as an example, it is a five-petal structure. The damper 81 also includes a flexible portion covering the outside of the petal structures, and the sleeve 1 has a cavity with a shape adapted to the five petal structures, into which the five petal structures are inserted. Here, the flexible portion can be, for example, rubber, which is coated onto the petal structures through a vulcanization process to buffer vibrations. Compared to the four-petal structure in the prior art, the five-petal structure provides a larger contact area and reduces rubber wear.

[0052] Based on the technical solution described above, a more specific example will be described below. Specifically, as mentioned above, a new external thread can be machined at the end of sleeve 1 to be tightened with the inner ring thread of the output bearing (i.e., bearing 4) to fix the inner ring of the output bearing. A bearing shoulder (positioning shoulder 102) is machined at the front to position the inner ring of the output bearing. The sleeve 1 eliminates the need for locking nuts, locking bolts, locking bolt washers, and O-rings, while also providing 10mm of space for the damper 81 in the length direction.

[0053] According to the active stabilizing bar provided in the embodiments of this application, the four-petal structure of the original damper 81 is changed to five petals. At the same time, a length of 10mm is added to the original damper 81 and the original mounting hole of the locking bolt is removed. This structure is more conducive to increasing the contact area with the sleeve 1, reducing the local load, and improving the life of the rubber part on the damper 81. In addition, the structure of the sleeve 1 is matched with the structure of the damper 81 and is also adjusted to a five-petal structure.

[0054] According to a second aspect of the embodiments of this application, an assembly method for assembling the above-mentioned active stabilizer bar is provided, the installation steps of which are as follows: (1) Press the oil seal 2 into the sleeve 1 and suspend it on the output rocker arm 12, and wait for the second pressing of the oil seal 2; (2) Take out the output rocker arm 12 and fix it on the press-fitting fixture of the bearing 4, and press the bearing 4 onto the positioning shoulder 102 on the sleeve 1; (3) Screw the inner ring thread of the bearing 4 into the thread of the output sleeve 1, and tighten it with a torque wrench to a torque of 20±5Nm; (4) Insert the installed output rocker arm 12 into the assembly formed by the housing 11 and the three-stage reducer assembly 82, and fit it into part of the petals of the damper 81. (5) Tighten the outer ring thread of bearing 4 into the inner wall of housing 11, and tighten it to a torque of 195±5 Nm using a torque wrench on a specific tooling table. (6) Using a specific oil seal press-fitting fixture, press the oil seal 2 onto a specific position of the sleeve 1 collar to complete the installation process of the output rocker arm 12.

[0055] According to a third aspect of the embodiments of this application, a vehicle is provided, which includes the active stabilizer bar as described above and also has the above-mentioned 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 damper, a sleeve, and an output rocker arm. The damper is connected to the sleeve via a transmission, and the output rocker arm is connected to the sleeve, so that the damper drives the output rocker arm to rotate. The sleeve is formed as a single unit.

2. The active stabilizer bar according to claim 1, characterized in that, The active stabilizer bar also includes a housing and a bearing, the bearing being disposed between the sleeve and the housing to allow the sleeve to rotate relative to the housing.

3. The active stabilizer bar according to claim 2, characterized in that, The active stabilizer bar also includes a reducer assembly. The reducer assembly is located at the end of the damper away from the output rocker arm. The sleeve includes a sleeve body and a positioning shoulder. The sleeve has an axial direction. The positioning shoulder is located at the end of the sleeve body away from the reducer assembly. The inner ring of the bearing abuts against the positioning shoulder.

4. The active stabilizer bar according to claim 3, characterized in that, The active stabilizer bar also includes a first positioning ring, which is sleeved on the outside of the positioning shoulder. The first positioning ring is used to detachably connect to the housing. The first positioning ring abuts against the outer ring of the bearing to position the outer ring of the bearing axially on the sleeve. The side of the outer ring of the bearing away from the first positioning ring abuts against the inside of the housing.

5. The active stabilizer bar according to claim 4, characterized in that, The active stabilizer bar also includes an oil seal, which is sleeved on the outside of the output rocker arm and located between the positioning shoulder and the housing.

6. The active stabilizer bar according to claim 3, characterized in that, The active stabilizer bar also includes a second positioning ring disposed on the side of the bearing near the reducer assembly. The second positioning ring is detachably connected to the sleeve and abuts against the inner ring of the bearing to position the inner ring of the bearing axially on the sleeve.

7. The active stabilizer bar according to claim 1 or 2, characterized in that, The damper has at least five petal structures arranged sequentially along the circumference. The damper also includes a flexible portion covering the outside of the petal structures. The sleeve has a cavity whose shape is adapted to the at least five petal structures, and the at least five petal structures are inserted into the cavity.

8. An assembly method, characterized in that, The assembly method is used to assemble the active stabilizer bar as described in claim 5, and the assembly method includes: The oil seal is pressed into the sleeve and suspended on the output rocker arm; Position the inner ring of the bearing on the sleeve; The output rocker arm is installed into the assembly formed by the housing and the reducer assembly.

9. The assembly method according to claim 8, characterized in that, The assembly method further includes: Position the outer ring of the bearing; The oil seal is pressed into the predetermined position inside the sleeve, so that the oil seal is installed in place.

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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