Active stabilizer bar testing device

Abstract

The utility model relates to the technical field of active stabilizer bar performance testing, in particular to an active stabilizer bar testing device. The testing device comprises a testing base and testing assemblies, the testing assemblies are installed at the left end and the right end of the testing base respectively, each testing assembly comprises a testing support, a center shaft and a spring, the center shafts are movably arranged on the testing supports in an inserted mode, first limiting assemblies are arranged on the center shafts, the center shafts are sleeved with the springs, and the springs are arranged in the testing supports. The lower end of the spring abuts against the first limiting assembly, the upper end of the spring abuts against the testing support, the two ends of the driving stabilizer bar are connected with the lower ends of the center shafts respectively, and the middle of the driving stabilizer bar is supported by the testing base. The active stabilizer bar testing device comprises the testing assembly which is highly similar to the damping arm structure, and a tester can connect an active stabilizer bar to the testing assembly, so that the working environment of the active stabilizer bar is highly restored, and the working performance of the active stabilizer bar is accurately detected.

Description

Technical Field

[0001] This utility model relates to the field of active stabilizer bar performance testing technology, and in particular to an active stabilizer bar testing device. Background Technology

[0002] Traditional passive stabilizer bars effectively reduce body roll during cornering, but they can decrease driving comfort. To address this, active stabilizer bars were developed to simultaneously meet the demands of anti-roll performance and driving comfort. Active stabilizer bars integrate advanced sensors, controllers, and actuators consisting of a drive motor and a reduction gear. By collecting vehicle status parameters in real time, developing control strategies, driving actuator movements, and cooperating with other systems, they achieve active control of the vehicle's attitude, thereby improving vehicle stability, safety, and driving comfort.

[0003] However, most of the existing testing devices for measuring the performance of active stabilizer bars on the market (such as the utility model patent with publication number CN202433182U) have simple structures. When technicians install the active stabilizer bar to be tested onto such testing devices, the test installation posture of the active stabilizer is very different from its actual installation posture in the vehicle, resulting in distorted performance test results, low test accuracy, and inability to guarantee the overall vehicle quality and safety performance.

[0004] In addition, existing testing equipment cannot be used to test the response speed of active stabilizer bars. Utility Model Content

[0005] In response to at least one of the above-mentioned defects or improvement needs in the prior art, this utility model provides an active stabilizer bar testing device. The device includes a testing component with a height similar to that of the shock absorber arm structure. Testers can connect the active stabilizer bar to the testing component to highly replicate the working environment of the active stabilizer bar, thereby accurately testing the working performance of the active stabilizer bar.

[0006] The technical solution of this utility model to solve the above problems is as follows: an active stabilizing bar testing device is provided. The testing device includes a testing base and testing components. The testing components are installed at both ends of the testing base. The testing components include a testing bracket, a central shaft, and a spring. The central shaft is movably inserted into the testing bracket. A first limiting component is provided on the central shaft. The spring is sleeved on the central shaft and located inside the testing bracket. The lower end of the spring abuts against the first limiting component, and the upper end abuts against the testing bracket. Both ends of the active stabilizing bar are connected to the lower end of a central shaft. The middle part of the active stabilizing bar is also supported by the testing base.

[0007] Furthermore, a bushing mounting bracket is provided on the front side of the test base, and the active stabilizing rod is mounted on the bushing mounting bracket to be supported on the front side of the test base.

[0008] Furthermore, the test bracket is hollow, and through holes are provided at both the upper and lower ends of the test bracket. The diameter of the through holes is larger than the diameter of the central shaft, and the central shaft passes through the through holes and is movably inserted into the test bracket.

[0009] Furthermore, linear bearings are provided at both the upper and lower through holes of the test bracket.

[0010] Furthermore, the test bracket is equipped with a limit protection platform inside, which abuts against the first limit component to limit movement.

[0011] Furthermore, the first limiting component includes a first spring seat, a first buffer pad, and a first push plate. The first spring seat, the first buffer pad, and the first push plate are sequentially sleeved on the central shaft from top to bottom. The first spring seat is axially movable, and the first push plate is fixed. The lower end of the spring abuts against the first spring seat. Under the action of the spring's clamping force, the first spring seat and the first push plate cooperate to clamp the first buffer pad.

[0012] Furthermore, the limiting protection platform is provided with a limiting protection through hole for the first push plate to pass through. The diameters of the first spring seat and the first buffer pad are both larger than the diameter of the limiting protection through hole, so as to make the test component structure more compact and reduce the volume of the test component.

[0013] Furthermore, the upper end of the hollow interior of the test bracket is provided with a second buffer pad and a second spring seat. The second spring seat is movably sleeved on the central shaft, the upper end of the spring abuts against the second spring seat, and the second buffer pad is spaced between the test bracket and the second spring seat.

[0014] Furthermore, the test bracket has an end cap at its upper end, and a vertical groove is formed on the side wall of the end cap. An anti-torsion mandrel is inserted into the groove, and the width of the groove is approximately equal to the diameter of the anti-torsion mandrel. The anti-torsion mandrel is also radially inserted into the central shaft.

[0015] Furthermore, an intermediate connecting block is provided at the lower end of the central shaft, and the active stabilizing rod is fixedly connected to the central shaft by the intermediate connecting block.

[0016] The beneficial effects of this utility model are:

[0017] The test components include a test bracket, a central shaft, and a spring. The lower end of the central shaft can be connected to the active stabilizer bar, so that the active output torque (active action) of the active stabilizer bar can drive the central shaft to move vertically. At the same time, the central shaft can automatically return to its original position under the elastic force of the spring. This closely replicates the working environment of the active stabilizer bar when it is actually installed in the vehicle and connected to the vehicle's shock absorber arm. This allows for obtaining relatively realistic results in subsequent performance tests of the active stabilizer bar, effectively ensuring the factory quality of the active stabilizer bar.

[0018] To test this, testers only need to install the active stabilizer bar on the front of the test base and connect each end of the active stabilizer bar to a test component to test various aspects of the active stabilizer bar's performance, such as lifespan and durability tests under different temperature, humidity, salt spray, and vibration environments, as well as response speed and stability tests. This verifies whether the active stabilizer bar meets the various performance indicators specified in the design and allows for the timely identification of potential problems in the early design or manufacturing of the active stabilizer bar, such as unreasonable structure or sensor malfunctions.

[0019] In addition, the designers used data analysis methods to analyze the various test data mentioned above to evaluate the performance of the active stabilizer bar and provide data support for subsequent optimization design of the active stabilizer bar, thereby further improving the quality and reliability of the product. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0021] Figure 1 This is an overall structural diagram of the testing device in this embodiment;

[0022] Figure 2 This is a structural diagram of the test component in this embodiment;

[0023] Figure 3 This is a cross-sectional view of the test component in this embodiment;

[0024] Figure 4 This is a structural diagram of the test bracket in this embodiment;

[0025] 1-Test base, 11-Bushing mounting bracket, 12-Linear bearing, 2-Test assembly, 21-Test bracket, 22-Central shaft, 23-Spring, 24-First limit assembly, 241-First spring seat, 242-First buffer pad, 243-First push plate, 25-Limit protection platform, 251-Limit protection through hole, 26-Second buffer pad, 27-Second spring seat, 28-End cover, 281-Slide groove, 282-Anti-torsion mandrel, 29-Intermediate connecting block. Detailed Implementation

[0026] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0027] Please see Figures 1 to 4 ,by Figure 1 Taking the indicated orientation as an example, a specific embodiment of the present invention provides an active stabilizer bar testing device, which includes a test base 1 and a test component 2. The test base 1 includes a base plate and a base fixedly installed in the middle of the base plate. The base is formed by assembling multiple supports and is a cuboid. Two bushing mounting brackets 11 are provided on the front side of the base, and the two bushing mounting brackets 11 are symmetrically arranged on the left and right sides. There are two test components 2, which are respectively installed on the left and right sides of the test base 1.

[0028] In this embodiment, test technicians can install the bushing portion of the active stabilizer bar to be tested onto the bushing mounting bracket 11, and connect each end of the active stabilizer bar to a test component 2. By inputting different control command signals to the actuator of the active stabilizer bar, the active stabilizer bar can be made to move actively, and the two test components 2 can also be made to move. This allows for the testing of the functions of each component of the active stabilizer bar, the response speed of the active stabilizer bar, and the lifespan and durability of the active stabilizer bar, thereby ensuring the quality of the active stabilizer bar.

[0029] Please see Figure 1 and Figure 2In this embodiment, the test component 2 includes a test bracket 21, a central shaft 22, and a spring 23. The lower end of the test bracket 21 is provided with a connecting support, and the upper end is provided with an end cap 28. The test bracket 21 is a cuboid frame structure. The connecting support is welded and installed at the bottom of the test bracket 21. The connecting support is also welded and fixed to the left or right side wall of the test base 1 to fix the test component 2 on the left or right side of the test base 1. The central shaft 22 is vertically movably inserted into the test bracket 21. The upper end of the central shaft 22 extends upward through the end cap 28, and the lower end of the central shaft 22 also extends downward through the connecting support. The spring 23 is sleeved on the central shaft 22 and is located inside the test bracket 21. The lower part of the central shaft 22 is provided with a first limiting component 24. The upper end of the spring 23 abuts against the upper end of the frame of the test bracket 21, and the lower end abuts against the first limiting component 24.

[0030] In addition, a middle connecting block 29 is provided at the lower end of the central shaft 22.

[0031] In this embodiment, technicians can connect the active stabilizer bar and the test assembly 2 by connecting the end of the active stabilizer bar to the intermediate connecting block 29. When the active stabilizer bar receives an external control command to operate actively, its active operation can immediately drive the central shaft 22 to move upward. Then, the central shaft 22 will automatically move downward to reset under the elastic force of the spring 23. In this way, the test assembly 2 can automatically adapt to the active action of the active stabilizer bar to facilitate the testing of the active stabilizer bar's performance.

[0032] For example, after inputting environmental data that enables the active stabilizer bar to move actively into its sensors, technicians can also determine the response speed of the active stabilizer bar by recording the time it takes for the active stabilizer bar to move from receiving the data signal.

[0033] It should be noted that in this embodiment, the active action corresponding to the active stabilizer bar refers to the stabilization action that can maintain the stability of the vehicle and prevent the vehicle from tilting.

[0034] Further, please refer to Figure 3 and Figure 4 In this embodiment, a through hole is provided on the end cap 28 at the upper end of the test bracket 21, and a through hole is also provided at the bottom of the test bracket 21. A linear bearing 12 adapted to the central shaft 22 is fixedly installed at both through holes. The central shaft 22 is limited by the two linear bearings 12 and can only move vertically.

[0035] In addition, a limit protection platform 25 is integrally provided in the lower middle part of the test bracket 21. The limit protection platform 25 is used to further restrict the downward movement of the first limit component 24. The middle part of the limit protection platform 25 is also provided with a limit protection through hole 251 for the central shaft 22 to extend downward, so that the lower end of the central shaft 22 can always extend below the connecting support.

[0036] Further, please refer to Figure 3 In this embodiment, the first limiting component 24 includes a first spring seat 241, a first buffer pad 242, and a first push disk 243. The first spring seat 241 is movably sleeved on the central shaft 22, and the first push disk 243 is fixedly sleeved on the central shaft 22. The first buffer pad 242 is spaced between the first spring seat 241 and the first push disk 243. The diameter of the first push disk 243 is smaller than the diameter of the limiting protection through hole 251, but the diameters of the first buffer pad 242 and the first spring seat 241 are both larger than the diameter of the limiting protection through hole 251.

[0037] In this way, the technician can set the initial state of the spring 23 in the test assembly 2 to the compressed state, so that the spring 23 can push the first spring seat 241 downward, so that the first spring seat 241 can press the first buffer pad 242 against the first push plate 243, and the first buffer pad 242 can also be effectively spaced between the first spring seat 241 and the limit protection platform 25, so as to avoid the first limit assembly 24 from colliding with the limit protection platform 25 and causing structural damage during the process of the central shaft 22 resetting and moving downward under the elastic force of the spring 23.

[0038] Similarly, the upper end of the test bracket 21 is also provided with a second buffer pad 26 and a second spring seat 27. The second spring seat 27 is interlocked on the central shaft 22. The second buffer pad 26 is spaced between the upper frame plate of the test bracket 21 and the second spring seat 27. Under the elastic force of the spring 23, the second spring seat 27 is pushed upward to press against the second buffer pad 26, and the second buffer pad 26 is pressed against the test bracket 21 to protect the second spring seat 27 and the spring 23.

[0039] Further, please refer to Figure 2 and Figure 3 ,because Figure 2Taking the orientation shown as an example, in this embodiment, in order to prevent the central shaft 22 from being twisted by the active movement of the active stabilizing rod, which would lead to a larger error in the test results, the right front side and left rear side of the end cover 28 are vertically provided with sliding grooves 281. The sliding grooves 281 extend upward to the top of the end cover 28. The upper end of the central shaft 22 is provided with a plug-in mounting hole. An anti-torsion mandrel 282 is inserted into the plug-in mounting hole. Each end of the anti-torsion mandrel 282 is inserted into a sliding groove 281, and the diameter of the two ends of the anti-torsion mandrel 282 is equivalent to the width of the sliding groove 281 into which it is inserted.

[0040] In response, during the vertical lifting and lowering of the central shaft 22, the central shaft 22 is further limited by the anti-torsion spindle 282 to prevent it from rotating, thereby ensuring the accuracy of the test results.

[0041] Anything not mentioned above applies to existing technologies.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An active stabilizer bar testing device, characterized in that, The testing device includes a test base (1) and a test component (2). The test component (2) is installed on both the left and right ends of the test base (1). The test component (2) includes a test bracket (21), a central shaft (22), and a spring (23). The central shaft (22) is movably inserted into the test bracket (21). A first limiting component (24) is provided on the central shaft (22). The spring (23) is sleeved on the central shaft (22) and is located inside the test bracket (21). The lower end of the spring (23) abuts against the first limiting component (24), and the upper end abuts against the test bracket (21). The two ends of the active stabilizing rod are each connected to the lower end of a central shaft (22). The middle part of the active stabilizing rod is also supported by the test base (1).

2. The testing apparatus as described in claim 1, characterized in that, A bushing mounting bracket (11) is provided on the front side of the test base (1), and the active stabilizing rod is mounted on the bushing mounting bracket (11) to be supported on the front side of the test base (1).

3. The testing apparatus as described in claim 1, characterized in that, The test bracket (21) is hollow, and through holes are provided at both the upper and lower ends of the test bracket (21). The diameter of the through holes is larger than the diameter of the central shaft (22). The central shaft (22) passes through the through holes and is movably inserted into the test bracket (21).

4. The testing apparatus as described in claim 3, characterized in that, Linear bearings (12) are provided at both the upper and lower through holes of the test bracket (21).

5. The testing apparatus as described in claim 1, characterized in that, The test bracket (21) is provided with a limit protection platform (25) inside, and the limit protection platform (25) abuts against the first limit component (24) to limit each other.

6. The testing apparatus as described in claim 5, characterized in that, The first limiting component (24) includes a first spring seat (241), a first buffer pad (242), and a first push plate (243). The first spring seat (241), the first buffer pad (242), and the first push plate (243) are sequentially sleeved on the central shaft (22) from top to bottom. The first spring seat (241) is axially movable, and the first push plate (243) is fixedly installed. The lower end of the spring (23) abuts against the first spring seat (241). Under the action of the spring (23), the first spring seat (241) and the first push plate (243) cooperate with each other to clamp the first buffer pad (242).

7. The testing apparatus as described in claim 6, characterized in that, The limiting protection platform (25) has a limiting protection through hole (251) for the first push plate (243) to pass through. The diameters of the first spring seat (241) and the first buffer pad (242) are both larger than the diameter of the limiting protection through hole (251).

8. The testing apparatus as described in claim 1, characterized in that, The upper end of the test bracket (21) is also provided with a second buffer pad (26) and a second spring seat (27). The second spring seat (27) is movably sleeved on the central shaft (22). The upper end of the spring (23) abuts against the second spring seat (27). The second buffer pad (26) is spaced between the test bracket (21) and the second spring seat (27).

9. The testing apparatus as described in claim 1, characterized in that, The test bracket (21) has an end cap (28) at its upper end. A vertical groove (281) is provided on the side wall of the end cap (28). An anti-torsion mandrel (282) is inserted in the groove (281). The width of the groove (281) is equivalent to the diameter of the anti-torsion mandrel (282). The anti-torsion mandrel (282) is also radially inserted on the central shaft (22).

10. The testing apparatus as described in claim 1, characterized in that, The lower end of the central shaft (22) is also provided with an intermediate connecting block (29), and the active stabilizing rod is fixedly connected to the intermediate connecting block (29) to be connected to the central shaft (22).

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