Shock absorber and stabilizer bar
By designing a damper with differentiated teeth and compressible damping components, the problem of structural impact on the stabilizer bar on slightly bumpy roads was solved, achieving stability and energy-saving buffering effects under different road conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- KH ADVANCED SUSPENSION CO LTD
- Filing Date
- 2023-08-14
- Publication Date
- 2026-06-05
Smart Images
Figure CN116872667B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle technology, and in particular to a damper and stabilizer bar. Background Technology
[0002] When a vehicle travels on rough roads or encounters curves, it may experience bumps or tilting. To provide a better driving experience, a stabilizer bar is typically installed to reduce body roll and ensure vehicle stability. The stabilizer bar includes a reducer, motor, damper, and first rocker arm. When encountering bumps, the torque output by the motor is transmitted to the vehicle's suspension via the reducer, damper, and first rocker arm to cushion the vehicle's tilt.
[0003] A damper generally includes an input unit, an output unit, and a damping unit. The input unit is connected to the reducer, the output unit is connected to the first rocker arm, and the damping unit is located between the input unit and the output unit and can deform. When the motor is working, the input unit transmits torque to the output unit by compressing the damping unit, and then to the first rocker arm.
[0004] When the vehicle is traveling on a road with minimal bumps, the output unit rotates at a small angle. At this angle, the output unit's rotation is insufficient to reach the motor's operating angle, and the motor does not operate. When the vehicle is traveling on a road with significant bumps, the output unit rotates at a larger angle. At this angle, the output unit reaches the motor's operating angle, and the motor operates. As the output unit's rotation increases, the torque output by the damping unit rises rapidly. The motor's torque is transmitted to the output unit via the damping unit, and then to the first rocker arm connected to the output unit, thus buffering the vehicle's tilt.
[0005] However, when the vehicle is traveling on a road with relatively small bumps, the torque output by the damping unit gradually increases before the output unit rotates to the working angle of the motor. When the torque output by the damping unit is able to drive the input unit to rotate, the input unit will transfer the torque to the reducer and other structures connected to it to exert force because the motor is not working. This will cause impact on other structures inside the stabilizer bar, and may even cause the stabilizer bar structure to be damaged. Summary of the Invention
[0006] In view of this, this application provides a damper and a stabilizer bar to solve the problem that the internal structure of the stabilizer bar is impacted when the vehicle is traveling on a road with relatively small bumps, which may even lead to the destruction of the stabilizer bar structure.
[0007] According to one aspect of this application, a vibration damper is provided, the vibration damper including an input unit, an output unit, and a damping unit. The input unit includes a plurality of input teeth, and the output unit includes a plurality of output teeth. The plurality of input teeth and the plurality of output teeth are alternately arranged. The output teeth include a first tooth portion and a second tooth portion. The second tooth portion is connected to the side of the first tooth portion near the axis of the vibration damper. The circumferential dimension of the first tooth portion in the vibration damper is larger than the circumferential dimension of the second tooth portion in the vibration damper.
[0008] The damping unit includes damping elements. Each of the input teeth is provided with damping elements on both sides of the damper in the circumferential direction. The damping elements can be compressed. The damping elements include a main body, a first protrusion, and a second protrusion. The first protrusion and the second protrusion both protrude from the side of the main body opposite to the input tooth. The first tooth can compress the first tooth, and the second tooth can compress the second tooth.
[0009] Preferably, the two parts of the input tooth located on both sides of the symmetry plane are symmetrical about the symmetry plane. The main body includes a reference plane. The first protrusion and the second protrusion protrude from the reference plane. The plane determined by the farthest point of the first protrusion from the reference plane and the axis of the damper is a first plane. The plane determined by the farthest point of the second protrusion from the reference plane and the axis is a second plane. The point of the first tooth that abuts against the first protrusion and the plane determined by the axis is a first abutting plane. The point of the second tooth that abuts against the second protrusion and the plane determined by the axis is defined as a second abutting plane.
[0010] The angle between the first plane and the plane of symmetry is equal to the angle between the first contact plane and the plane of symmetry, and the angle between the second plane and the plane of symmetry is equal to the angle between the second contact plane and the plane of symmetry.
[0011] Preferably, the input tooth includes a plane of symmetry, and the two portions of the input tooth located on both sides of the plane of symmetry are symmetrical about the plane of symmetry. The main body includes a reference plane, and the first protrusion and the second protrusion protrude from the reference plane. The plane of the first protrusion, defined by the distance from the reference plane and the axis of the damper, is a first plane. The plane of the second protrusion, defined by the distance from the reference plane and the axis, is a second plane. The plane of the first tooth abutting against the first protrusion and the axis is a first abutting plane. The plane of the second tooth abutting against the second protrusion and the axis is defined as a second abutting plane. The angle between the first plane and the plane of symmetry is equal to the angle between the first abutting plane and the plane of symmetry, and the angle between the second plane and the plane of symmetry is equal to the angle between the second abutting plane and the plane of symmetry.
[0012] Preferably, the angle between the first plane and the reference plane is smaller than the angle between the second plane and the reference plane, and the angle between the first plane and the reference plane is 4.5 degrees to 5.5 degrees.
[0013] Preferably, the input tooth includes a plane of symmetry, and the two portions of the input tooth located on both sides of the plane of symmetry are symmetrical about the plane of symmetry. The main body includes a reference plane, and the first protrusion and the second protrusion protrude from the reference plane. The plane determined by the farthest point of the first protrusion from the reference plane and the axis of the damper is a first plane, and the plane determined by the farthest point of the second protrusion from the reference plane and the axis is a second plane. The point of the first tooth abutting against the first protrusion and the plane determined by the axis is a first abutting plane, and the point of the second tooth abutting against the second protrusion and the plane determined by the axis is defined as a second abutting plane. The angle between the first plane and the plane of symmetry is equal to the angle between the first abutting plane and the plane of symmetry, and the angle between the second plane and the plane of symmetry is less than the angle between the second abutting plane and the plane of symmetry.
[0014] Preferably, the angle between the first plane and the reference plane is 4.5-5.5 degrees, and the angle between the second plane and the second abutting plane is 2-3 degrees.
[0015] Preferably, the output unit further includes a connector, and the two damping elements located between the two input teeth are connected by the connector, and the damping elements located on both sides of the same output tooth are separately arranged.
[0016] Preferably, the output unit further includes a connector and a plurality of damping elements, the plurality of damping elements being spaced apart along the outer side wall of the connector.
[0017] Preferably, the damping member further includes a third protrusion that protrudes from the main body toward the output tooth.
[0018] According to one aspect of this application, a stabilizer bar is provided, the stabilizer bar including the above-described damper.
[0019] Preferably, the stabilizer bar further includes a motor and a reducer, wherein the motor, the reducer and the damper are arranged in sequence to transmit the output torque of the motor to the vehicle suspension in sequence via the reducer and the damper.
[0020] On roads with minor bumps, when the output unit twists at a small angle relative to the input unit, the first and second protrusions are compressed by the first and second teeth respectively, while the main body remains uncompressed. The torque provided by the damping unit is relatively small, and the input unit does not rotate under the damping unit's influence, thus avoiding impacts on other structures of the stabilizer bar caused by the input unit's rotation. On roads with significant bumps, the output unit twists at a larger angle relative to the input unit. The stabilizer bar motor operates, and the first, second, and main bodies are all compressed. The torque output by the motor is transmitted to the output unit via the damping unit, and then to the first rocker arm connected to the output unit, thus buffering vehicle tilt. Therefore, when the stabilizer bar is not operating on roads with minor bumps, the impact of the input unit's rotation on other structures of the stabilizer bar is avoided, preventing damage to the stabilizer bar's structure. Attached Figure Description
[0021] 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.
[0022] Figure 1 An exploded view of embodiment one of the vibration damper is shown;
[0023] Figure 2 A structural schematic diagram of one embodiment of the vibration damping unit is shown;
[0024] Figure 3 A schematic diagram of the vibration damping component in another embodiment of the vibration damping unit is shown;
[0025] Figure 4 A schematic diagram of the output unit is shown;
[0026] Figure 5 A cross-sectional view of Embodiment 1 of the damper is shown;
[0027] Figure 6 A cross-sectional view of Embodiment 2 of the damper is shown;
[0028] Figure 7 A schematic diagram of the stabilizer bar structure is shown;
[0029] Figure 8 A perspective view of the stabilizer bar is shown;
[0030] Figure 9 The diagram shows the relationship between the rotation angle of the output unit and the output torque of the existing damper.
[0031] Figure 10 A graph showing the relationship between the rotation angle of the output unit and the output torque of the damper in Embodiment 1 is provided.
[0032] Figure 11 The diagram shows the relationship between the rotation angle of the output unit of the damper in Embodiment 2 and the output torque of the damper unit.
[0033] Icons: 1-Damper; 11-Input unit; 111-Input tooth; 112-Center column; 113-Fixing plate; 12-Damper unit; 121-Dampering component; 1211-Main body; 1212-First protrusion; 1213-Second protrusion; 1214-Third protrusion; 122-Connector; 13-Output unit; 131-Output tooth; 1311-First tooth; 1312-Second tooth; 13 2-Cylinder section; 133-First spline; 2-First bushing; 3-First rocker arm; 31-Mounting plate; 32-Second spline; 33-Fixing part; 4-First cylinder wall; 5-Second cylinder wall; 6-Second rocker arm; 61-Connecting part; 7-Second bushing; 8-Reducer; 81-Planetary carrier; 9-Motor; S1-First plane; S2-Second plane; S3-Reference plane; S4-Symmetrical plane; S5-Second abutment plane. Detailed Implementation
[0034] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.
[0035] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.
[0036] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.
[0037] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.
[0038] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.
[0039] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.
[0040] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.
[0041] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.
[0042] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.
[0043] In existing stabilizer bars, such as Figure 9 As shown, before the output unit rotates to an angle of less than 5 degrees, the torque output by the damping unit exhibits a linear upward trend. The stabilizer bar motor typically begins operating only after the output unit rotates to an angle exceeding 5 degrees. When the output unit rotates to an angle greater than 5 degrees, the motor further compresses the damping unit, accelerating the upward trend of the output torque. When the output unit rotates to an angle of 5 degrees, the torque output by the damping unit exceeds 500 N·m.
[0044] However, when the output unit rotates by 2 degrees, the torque output by the damping unit exceeds 200 N·m. This torque can drive the input unit to rotate. Since the motor is not operating at this time, the input unit transmits the torque to the connected reducer and other structures, causing impact to other structures inside the stabilizer bar, and potentially even damaging the stabilizer bar structure. Based on this, the damper and stabilizer bar of this application are proposed.
[0045] According to a first aspect of this application, a vibration damper 1 is provided. The vibration damper 1 includes an input unit 11, an output unit 13, and a damping unit 12. The input unit 11 includes a plurality of input teeth 111, and the output unit 13 includes a plurality of output teeth 131. The plurality of input teeth 111 and the plurality of output teeth 131 are alternately arranged. The output teeth 131 include a first tooth portion 1311 and a second tooth portion 1312. The second tooth portion 1312 is connected to the side of the first tooth portion 1311 near the axis of the vibration damper 1. The circumferential dimension of the first tooth portion 1311 in the vibration damper 1 is larger than the circumferential dimension of the second tooth portion 1312 in the vibration damper 1.
[0046] The damping unit 12 includes damping elements 121. Each input tooth 111 has damping elements 121 on both sides of the damper 1 in the circumferential direction. The damping elements 121 can be compressed. The damping elements 121 include a main body 1211, a first protrusion 1212 and a second protrusion 1213. The first protrusion 1212 and the second protrusion 1213 both protrude from the side of the main body 1211 opposite to the input tooth 111. The first tooth 1311 can compress the first tooth 1311, and the second tooth 1312 can compress the second tooth 1312.
[0047] On roads with minor bumps, when the output unit 13 twists at a small angle relative to the input unit 11, the first protrusion 1212 and the second protrusion 1213 are compressed under the action of the first tooth 1311 and the second tooth 1312, respectively, while the main body 1211 is not compressed. The torque provided by the damping unit 12 is relatively small, and the input unit 11 will not rotate under the action of the damping unit 12, thus avoiding the impact on other structures of the stabilizer bar caused by the rotation of the input unit 11. On roads with large bumps, when the output unit 13 twists at a large angle relative to the input unit 11, the stabilizer bar motor 9 operates, and the first protrusion 1212, the second protrusion 1213, and the main body 1211 are all compressed. The torque output by the motor 9 can be transmitted to the output unit 13 via the damping unit 12, and then to the first rocker arm 3 connected to the output unit 13, thereby buffering the vehicle's tilt. Thus, when the vehicle is traveling on roads with minor bumps and the stabilizer bar is not operating, the impact on other structures of the stabilizer bar caused by the rotation of the input unit 11 can be avoided, preventing damage to the stabilizer bar structure.
[0048] Furthermore, at the end of the bumpy period, the torque output by the damping unit 12 can drive the output unit 13 to rotate in the opposite direction, and the damping unit 12 will return to its original state, thus completing the entire adjustment process.
[0049] like Figure 1 As shown, the input unit 11 includes a central column 112 and a fixing plate 113. The central column 112 is fixed at the center of the fixing plate 113, and multiple input teeth 111 are equidistantly arranged along the outer side wall of the central column 112. Preferably, the input teeth 111 are flat and there are 6 input teeth 111. In this case, the number of damping elements 121 is 12.
[0050] Furthermore, such as Figure 3 As shown, the damping unit 12 also includes a connector 122. Two damping elements 121 located between two input teeth 111 are connected by the connector 122 to form a damping assembly. The damping elements 121 located on both sides of the same output tooth 131 are separately arranged, and the two damping elements 121 and the connector 122 connecting the two damping elements 121 are integrally formed. In this way, the damping assembly in the damping unit 12 can be disassembled individually, and can be replaced individually if one of the damping components is damaged.
[0051] Preferably, there are 12 damping elements 121, in which case the damping units 12 form 6 separate structures.
[0052] Optionally, such as Figure 2 As shown, the connector 122 can also be cylindrical. In this case, the damping unit 12 forms a structure, and the connector 122 and multiple damping units 121 can be integrally formed.
[0053] Furthermore, such as Figure 4 As shown, the output unit 13 includes a cylindrical portion 132, and a plurality of output teeth 131 are equidistantly arranged along the inner wall of the cylindrical portion 132. Preferably, the number of output teeth 131 is 6.
[0054] Furthermore, the damping member 121 also includes a third protrusion 1214, which protrudes from the main body 1211 toward the output tooth 131. By providing the third protrusion 1214, the damping member 121 can be kept in a pre-compressed state. Optionally, the number of third protrusions 1214 can be one, two, three, or more, and the height of the different third protrusions 1214 relative to the main body 1211 can be different.
[0055] The structure of the damper 1 of this application will be described below with reference to Embodiment 1 and Embodiment 2. In Embodiment 1 and Embodiment 2, the main body 1211 includes a reference plane S3, and a first protrusion 1212 and a second protrusion 1213 protrude from the reference plane S3. The end of the first damper 121 away from the input tooth 111 is curved. Three recessed points are formed between the first protrusion 1212 and the second protrusion 1213, of which the recessed point closest to the plane of symmetry S4 and the plane containing the axis form the first reference plane S3. The plane defined by the point where the first tooth 1311 abuts against the first protrusion 1212 and the axis of the damper 1 is defined as the first abutting plane; the plane defined by the point where the second tooth 1312 abuts against the second protrusion 1213 and the axis of the damper 1 is defined as the second abutting plane S5; the plane defined by the farthest point of the first protrusion 1212 from the reference plane S3 and the axis of the damper 1 is defined as the first plane S1; and the plane defined by the farthest point of the second protrusion 1213 from the reference plane S3 and the axis is defined as the second plane S2.
[0056] Example 1
[0057] like Figure 5As shown, the angle between the first plane S1 and the symmetrical plane S4 is equal to the angle between the first contact plane and the symmetrical plane S4, and the angle between the second plane S2 and the symmetrical plane S4 is equal to the angle between the second contact plane S5 and the symmetrical plane S4. That is, the first contact plane coincides with the first plane S1, and the second contact plane coincides with the second plane S2. In other words, when the output unit 13 rotates at an angle of 0 degrees, the first protrusion 1212 contacts the first tooth 1311, and the second protrusion 1213 contacts the second tooth 1312. When the output unit 13 rotates relative to the input unit 11, the first tooth 1311 compresses the first protrusion 1212, and the second tooth 1312 compresses the second tooth 1312. The first protrusion 1212 and the second protrusion 1213 are compressed simultaneously. The size of the first protrusion 1212 and the second protrusion 1213 is much smaller than the size of the main body 1211. At this time, the torque output by the damping unit 12 is small, and the input unit 11 will not rotate.
[0058] The angle α between the first plane S1 and the reference plane S3 is less than the angle β between the second plane S2 and the reference plane S3, i.e., α < β. Thus, when the rotation angle of the output unit 13 is equal to the angle α between the first plane S1 and the reference plane S3, the first protrusion 1212 and the second protrusion 1213 are compressed. When the rotation angle of the output unit 13 is greater than the angle α between the first plane S1 and the reference plane S3 (i.e., when the vehicle encounters a large bump), the motor 9 works, the main body 1211 begins to be compressed, the torque output by the damping unit 12 increases significantly, the torque output by the motor 9 drives the reducer to rotate, and then transmits the torque through the reducer 8 to the input unit 11, and then through the damping unit 12 and the output unit 13 to the first rocker arm 3, thereby buffering the tilt of the vehicle.
[0059] Optionally, the angle α between the first plane S1 and the reference plane S3 is 4.5 degrees to 5.5 degrees, such as 4.7 degrees, 4.9 degrees, 5 degrees, 5.2 degrees or 5.4 degrees.
[0060] Preferably, the angle α between the first plane S1 and the reference plane S3 is 5 degrees.
[0061] Taking an angle α of 5 degrees between the first plane S1 and the reference plane S3 as an example, such as Figure 10As shown, when the output unit 13 rotates at an angle less than or equal to 5 degrees, the first protrusion 1212 and the second protrusion 1213 are compressed simultaneously, and the torque output by the damping unit 12 increases slowly. The torque output by the damping unit 12 is always less than 200 N·m. At this time, the input unit 11 does not rotate, and the output unit 13 does not exert force on the reducer 8 and other structures connected to the input unit 11, thus avoiding impact on other structures inside the stabilizer bar. When the output unit 13 rotates at an angle greater than 5 degrees, the motor 9 operates, the damping unit 12 is further compressed, the main body 1211 begins to be compressed, and the torque output by the damping unit 12 increases rapidly, so that the torque output by the motor 9 can be transmitted to the first rocker arm 3 through the reducer 8 and the damping unit 12.
[0062] Example 2
[0063] like Figure 6 As shown, the angle between the first plane S1 and the symmetrical plane S4 is equal to the angle between the first abutting plane and the symmetrical plane S4, meaning the first abutting plane coincides with the first plane S1. The angle between the second plane S2 and the symmetrical plane S4 is greater than the angle between the second abutting plane S5 and the symmetrical plane S4. In other words, when the output unit 13 rotates at 0 degrees, the first protrusion 1212 contacts the first tooth 1311, while the second protrusion 1213 does not contact the second tooth 1312. When the angle of rotation of the output unit 13 relative to the input unit 11 is less than or equal to the angle γ between the second abutting plane S5 and the second plane S2, the first tooth 1311 compresses the first protrusion 1212, while the second protrusion 1213 is not compressed. At this time, the torque output by the damping unit 12 is relatively small, and the input unit 11 will not rotate. When the output unit 13 rotates at an angle greater than the angle γ between the second contact plane S5 and the second plane S2, the motor 9 operates, and the first protrusion 1212 and the second protrusion 1213 are simultaneously compressed, increasing the torque output by the damping unit 12. The motor 9 outputs a first torque to cushion the vehicle's tilt. When the output unit 13 rotates at an angle greater than the angle between the reference plane S3 and the first plane α, the main body 1211, the first protrusion 1212, and the second protrusion 1213 are all compressed. At this time, the motor 9 outputs a second torque to cushion the vehicle's tilt. The first torque is less than the second torque. Thus, the motor 9 outputs different torques for different road conditions, making the stabilizer bar more energy-efficient.
[0064] Optionally, the angle α between the first plane S1 and the reference plane S3 is 4.5-5.5 degrees, the angle β between the second plane S2 and the second abutting plane S5 is 2-3 degrees, and the angle γ between the second plane S2 and the reference plane S3 is greater than the angle α between the first plane S1 and the reference plane S3.
[0065] Taking an angle α of 5 degrees between the first plane S1 and the reference plane S3, and an angle β of 2.5 degrees between the second plane S2 and the second abutting plane S5 as an example, ... Figure 11 As shown, when the rotation angle of the output unit 13 is less than or equal to 2.5 degrees, the torque output by the damping unit 12 increases slowly, and the torque output by the damping unit 12 is always less than 200 N·m. At this time, the input unit 11 will not rotate, and the output unit 13 will not exert force on the reducer 8 and other structures connected to it, thus avoiding impact on other structures inside the stabilizer bar. When the rotation angle of the output unit 13 is greater than 2.5 degrees, the motor 9 works, causing the motor 9 to output the first torque. The damping unit 12 is further compressed, and the second protrusion 1213 begins to be compressed. Both the first protrusion 1212 and the second protrusion 1213 are compressed, and the torque output by the damping unit 12 increases, so that the torque output by the motor 9 can be transmitted to the first rocker arm 3 through the reducer 8 and the damping unit 12. When the output unit 13 rotates at an angle greater than 5 degrees, the motor 9 operates, the damping unit 12 is further compressed, and the main body 1211 begins to be compressed. At this time, the main body 1211, the first protrusion 1212, and the second protrusion 1213 are all compressed, and the torque output by the damping unit 12 rises rapidly, so that the torque output by the motor 9 can be transmitted to the first rocker arm 3 through the reducer 8 and the damping unit 12.
[0066] According to another aspect of this application, a stabilizer bar is provided, such as Figure 7 and Figure 8 As shown, the stabilizer bar includes a first bushing 2, a first rocker arm 3, a first cylindrical wall 4, a second cylindrical wall 5, a second rocker arm 6, and a second bushing 7. The first bushing 2 is fixed to the first rocker arm 3, and the second rocker arm 6 is fixed to the second bushing 7. The first bushing 2 and the first rocker arm 3, as well as the second rocker arm 6 and the second bushing 7, can be fixed by vulcanization or assembly. The tail of the first rocker arm 3 has a mounting plate 31 with multiple mounting holes. A fixing part 33 passes through the mounting holes and the holes on the output unit 13, thereby fixing the first rocker arm 3 to the output unit 13. The fixing part 33 can be a bolt. A first spline 133 is provided on the side of the output unit 13 facing away from the input unit 11, and a second spline 32 is provided on the mounting plate 31. The first spline 133 and the second spline 32 cooperate to ensure that the first rocker arm 3 and the output unit 13 will not slide relative to each other.
[0067] like Figure 9As shown, the reducer 8 is located inside the first cylindrical wall 4. The planetary carrier 81 of the reducer 8 is connected to the input unit 11. A threaded ring (not shown in the figure) is fixed on the inner wall of the first cylindrical wall 4, and the reducer 8 is fixed by the threaded ring. The first cylindrical wall 4 and the second cylindrical wall 5 are welded together to ensure the strength and accuracy of the connection between the first cylindrical wall 4 and the second cylindrical wall 5. The motor 9 is located inside the second cylindrical wall 5 and is interference-fitted with the second cylindrical wall 5. The motor 9 is connected to the reducer 8 and can provide input power to the reducer 8. The second rocker arm 6 has a connecting part 61, which is welded to the other parts of the second rocker arm 6. The connecting part 61 is provided with connecting teeth, which are corresponding to the teeth at the tail of the second cylindrical wall 5.
[0068] When the stabilizer bar is working, the motor 9 generates torque that is sequentially transmitted to the reducer 8, the damper 1 and the mounting plate 31 of the first rocker arm 3, and then to the first rocker arm 3. The torque is also transmitted to the second rocker arm 6 through the reverse force via the motor 9, the second cylinder wall 5 and the connecting part 61, so as to realize the operation of the active stabilizer bar.
[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A vibration damper, characterized in that, The damper includes an input unit, an output unit, and a damping unit. The input unit includes multiple input teeth, and the output unit includes multiple output teeth. The multiple input teeth and the multiple output teeth are alternately arranged. Each output tooth includes a first tooth portion and a second tooth portion. The second tooth portion is connected to the side of the first tooth portion near the axis of the damper. The circumferential dimension of the first tooth portion in the damper is larger than the circumferential dimension of the second tooth portion in the damper. The damping unit includes damping elements. Each input tooth has damping elements on both sides of the damper in the circumferential direction. The damping elements can be compressed. The damping elements include a main body, a first protrusion, and a second protrusion. The first protrusion and the second protrusion both protrude from the side of the main body opposite to the input tooth. The first tooth can compress the first tooth, and the second tooth can compress the second tooth. The input tooth includes a symmetrical plane, and the two parts of the input tooth located on both sides of the symmetrical plane are symmetrical about the symmetrical plane. The main body includes a reference plane, and the first protrusion and the second protrusion protrude from the reference plane. The plane determined by the farthest point of the first protrusion from the reference plane and the axis of the damper is a first plane. The plane determined by the farthest point of the second protrusion from the reference plane and the axis is a second plane. The point of the first tooth that abuts against the first protrusion and the plane determined by the axis is a first abutting plane. The point of the second tooth that abuts against the second protrusion and the plane determined by the axis is defined as a second abutting plane. The angle between the first plane and the plane of symmetry is equal to the angle between the first contact plane and the plane of symmetry, and the angle between the second plane and the plane of symmetry is equal to the angle between the second contact plane and the plane of symmetry.
2. The damper according to claim 1, characterized in that, The angle between the first plane and the reference plane is smaller than the angle between the second plane and the reference plane, and the angle between the first plane and the reference plane is 4.5 degrees to 5.5 degrees.
3. The damper according to claim 1, characterized in that, The input tooth includes a symmetrical plane, and the two parts of the input tooth located on both sides of the symmetrical plane are symmetrical about the symmetrical plane. The main body includes a reference plane, and the first protrusion and the second protrusion protrude from the reference plane. The plane determined by the farthest point of the first protrusion from the reference plane and the axis of the damper is a first plane. The plane determined by the farthest point of the second protrusion from the reference plane and the axis is a second plane. The point of the first tooth that abuts against the first protrusion and the plane determined by the axis is a first abutting plane. The point of the second tooth that abuts against the second protrusion and the plane determined by the axis is defined as a second abutting plane. The angle between the first plane and the plane of symmetry is equal to the angle between the first contact plane and the plane of symmetry, and the angle between the second plane and the plane of symmetry is less than the angle between the second contact plane and the plane of symmetry.
4. The damper according to claim 3, characterized in that, The angle between the first plane and the reference plane is 4.5-5.5 degrees, and the angle between the second plane and the second abutting plane is 2-3 degrees.
5. The damper according to any one of claims 1-4, characterized in that, The output unit also includes a connector, and the two damping elements located between the two input teeth are connected by the connector. The damping elements located on both sides of the same output tooth are separately arranged.
6. The damper according to any one of claims 1-4, characterized in that, The output unit also includes a connector and a plurality of damping components, which are spaced apart along the outer side wall of the connector.
7. The damper according to any one of claims 1-4, characterized in that, The damping component also includes a third protrusion that protrudes from the main body toward the output tooth.
8. A stabilizer bar, characterized in that, The stabilizer bar includes the damper according to any one of claims 1-7.
9. The stabilizer bar according to claim 8, characterized in that, The stabilizer bar also includes a motor and a reducer, with the motor, the reducer and the damper arranged in sequence to transmit the output torque of the motor to the vehicle suspension in sequence via the reducer and the damper.