A mechanical filtering device for tire vibration signals

Abstract

The utility model relates to tire performance test equipment technical field provides a kind of tire vibration signal mechanical filtering device, comprising: mounting base, damping material and vibration sensor mounting seat, the mounting base is fixedly installed on the wheel axle of tire high-speed endurance testing machine, vibration sensor mounting seat bottom is set in the recess on mounting base, the connecting place of vibration sensor mounting seat and mounting base is filled with damping material, vibration sensor is provided on vibration sensor mounting seat, damping material split type is set, the utility model uses mechanical filtering device, filters out the testing machine vibration signal of high frequency, so that the vibration signal of more clear and understandable expression tire is shown vibration signal, compared with traditional digital filtering signal, can filter out interference signal from source, more effectively process high-frequency impact and other abnormal signals, and mounting base, damping material and vibration sensor mounting seat are convenient for installation connection between.

Description

Technical Field

[0001] This utility model relates to the technical field of tire performance testing equipment, and in particular to a mechanical filtering device for tire vibration signals. Background Technology

[0002] High-speed tire durability testing is a crucial component of indoor tire performance testing, and tire performance during testing is a key indicator of tire quality. Vibration signals are a vital reference for analyzing tire performance. However, due to the complex structure of tire testing machines, high-frequency and complex vibrations are generated during high-speed tire operation, drowning out the low-frequency vibration signals of the tire, thus hindering and impacting tire vibration analysis. Therefore, a device is needed to filter out the vibration signals generated by the testing machine, retaining only the tire's vibration signals to provide high-quality data for subsequent analysis.

[0003] Existing tire vibration signal filtering technology mainly involves collecting the vibration signal through a vibration sensor and then digitally filtering it using software.

[0004] However, the above-mentioned digital filtering methods are highly dependent on the quality of the acquired signal. When the signal quality is poor, especially when there are high-frequency impulse signals, satisfactory filtering results are often not obtained. Utility Model Content

[0005] To address the issue that the aforementioned digital filtering methods are highly dependent on the quality of the acquired signal, and often fail to achieve satisfactory filtering results when the signal quality is poor, especially when high-frequency impact signals are present, this invention provides a mechanical filtering device for tire vibration signals to solve this problem.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A mechanical filtering device for tire vibration signals includes: a mounting base, damping material, and a vibration sensor mounting base. The mounting base is fixedly installed on the axle of a high-speed tire durability testing machine. The bottom of the vibration sensor mounting base is set in a groove on the mounting base. The connection between the vibration sensor mounting base and the mounting base is filled with damping material. A vibration sensor is installed on the vibration sensor mounting base. The damping material is set separately.

[0008] Preferably, the mounting base includes: a mounting base body and an upper bracket. The mounting base body is a stepped cylinder. The upper bracket is snapped onto the mounting base body and fixedly connected to the mounting base body by screws. The damping material and the vibration sensor mounting base are disposed in the upper bracket. The bottom of the damping material abuts against the upper surface of the mounting base body.

[0009] Preferably, the damping material includes a damping base pad and a damping sleeve, which are snapped together. The damping base pad is disposed on the upper side of the mounting base body, and the damping sleeve is disposed inside the upper slot. The damping sleeve is fitted onto the outer side of the vibration sensor mounting base.

[0010] Preferably, the upper surface of the damping pad is provided with an annular groove, and the lower surface of the damping sleeve is provided with an annular protrusion. The end face of the annular protrusion is transitioned by a circular arc, and the annular protrusion extends into the annular groove and engages with the annular groove.

[0011] Preferably, the mounting base and the vibration sensor mounting bracket are made of metal.

[0012] Preferably, the damping material is soft rubber or polyurethane.

[0013] The advantages of this utility model are as follows: This utility model is installed on an indoor high-speed tire durability testing machine and placed between the wheel axle and the vibration sensor. When the vibration sensor collects the tire vibration signal, the damping material set between the mounting base and the vibration sensor mounting seat can effectively suppress high-frequency interference signals, so that the signal acquisition module obtains a high-quality signal through the vibration sensor, which is beneficial to subsequent analysis and processing. The split damping material makes it easy to first put the vibration sensor mounting seat and the damping sleeve into the upper card seat, then put in the damping bottom pad, and finally set the mounting base body and fix the mounting base body to the upper card seat to complete the assembly. The assembly is quick and convenient. Attached Figure Description

[0014] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0015] Figure 1 This is a side view of the structure of this utility model when it is installed in conjunction with a wheel and axle;

[0016] Figure 2 This is a schematic diagram of the structure of the vibration sensor mounting base of this utility model installed on the wheel axle;

[0017] Figure 3 This is a structural schematic diagram of the vibration sensor mounting base, damping material, and mounting base of this utility model;

[0018] Figure 4 This is a cross-sectional view of the vibration sensor mounting base, damping material, and mounting base of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the mounting base of this utility model;

[0020] Figure 6This is a cross-sectional view of the damping sleeve of this utility model;

[0021] Figure 7 This is a cross-sectional view of the damping base pad of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Mounting base; 2. Damping material; 3. Vibration sensor mounting base; 4. Axle; 5. Vibration sensor; 11. Mounting base body; 12. Upper bracket; 21. Damping bottom pad; 22. Damping sleeve; 211. Annular groove; 221. Annular protrusion. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example 1, combined with Figure 1 and Figure 2 Explanation:

[0028] A mechanical filtering device for tire vibration signals includes: a mounting base 1, a damping material 2, and a vibration sensor mounting base 3. The mounting base 1 is fixedly mounted on the axle 4 of a high-speed tire durability testing machine by screws. The bottom of the vibration sensor mounting base 3 is set in a groove on the mounting base 1. The connection between the vibration sensor mounting base 3 and the mounting base 1 is filled with the damping material 2. A vibration sensor 5 is set on the vibration sensor mounting base 3. The damping material 2 is set separately.

[0029] Vibration sensor model 5 uses KSI-138M010.

[0030] Damping material 2 is used to handle abnormal signals such as high-frequency impacts.

[0031] The device includes a vibration sensor mounting base 1, damping material 2, and mounting base 3. The device is fixed to the axle via threaded holes on the mounting base 3. The vibration sensor 5 is then fixed to the vibration sensor mounting base 1 with screws. A cable connects the vibration sensor to the vibration signal acquisition module, and the vibration signal acquisition module is then connected to a signal analysis and detection system.

[0032] Example 2, based on Example 1, combined with... Figure 3 Explanation:

[0033] The mounting base 1 and the vibration sensor mounting base 3 are made of metal.

[0034] The damping material 2 is made of soft rubber or polyurethane.

[0035] Example 3, based on Example 2, combined with Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 Explanation:

[0036] The mounting base 1 includes a mounting base body 11 and an upper bracket 12. The mounting base body 11 is a stepped cylinder. The upper bracket 12 is snapped onto the mounting base body 11 and fixedly connected to the mounting base body 11 by screws. The damping material 2 and the vibration sensor mounting base 3 are disposed in the upper bracket 12. The bottom of the damping material 2 abuts against the upper surface of the mounting base body 11.

[0037] This design, with its separate mounting base 1, facilitates the placement of the damping material 2 and the vibration sensor mounting base 3 within the mounting base 1, simplifying the installation process.

[0038] The damping material 2 includes a damping base pad 21 and a damping sleeve 22, which are snapped together. The damping base pad 21 is disposed on the upper side of the mounting base body 11, and the damping sleeve 22 is disposed inside the upper mounting seat 12. The damping sleeve 22 is fitted onto the outside of the vibration sensor mounting base 3.

[0039] With this setup, the damping sleeve 22 and the vibration sensor mounting base 3 are first installed into the upper bracket 12 and secured, then the damping base pad 21 is placed in, and finally the mounting base body 11 is fixedly connected to the upper bracket 12.

[0040] The upper surface of the damping base pad 21 is provided with an annular groove 211, and the lower surface of the damping sleeve 22 is provided with an annular protrusion 221. The end face of the annular protrusion 221 is transitioned by an arc, and the annular protrusion 221 extends into the annular groove 211 and engages with it. This arrangement facilitates alignment and fixation of the annular groove 211 and the annular protrusion 221, preventing movement.

[0041] After being filtered by damping material 2, the signal received by vibration sensor 5 is a low-frequency filtered signal.

[0042] The working principle of this utility model is as follows: During a high-speed durability test, the tire rotates at high speed driven by a drum. Due to the tire's inherent unevenness and out-of-roundness, it generates corresponding vibrations. These vibrations also cause significant vibrations in the testing machine. The vibration sensor 5 directly collects the vibration signal from the axle 4, which includes not only the tire's vibration signal but also the high-frequency interference signal generated by the testing machine. Furthermore, the interference signal is stronger than the desired signal. The damping material 2 in the tire vibration signal mechanical filter effectively suppresses the high-frequency interference signal, allowing the vibration sensor to collect a high-quality low-frequency signal. During assembly, the vibration sensor mounting base and damping sleeve are first placed into the upper clamping seat, followed by the damping pad. Finally, the mounting base body is installed and fixedly connected to the upper clamping seat. This utility model has a reasonable structure, is easy to use, and quick to assemble. The damping material placed between the mounting base and the vibration sensor mounting base effectively suppresses high-frequency interference signals, enabling the signal acquisition module to obtain a high-quality signal through the vibration sensor, which is beneficial for subsequent analysis and processing.

[0043] For those skilled in the art, this utility model is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model; therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. A mechanical filtering device for tire vibration signals, characterized in that, include: The mounting base (1), damping material (2), and vibration sensor mounting base (3) are installed. The mounting base (1) is fixedly installed on the wheel axle (4) of the tire high-speed durability testing machine. The bottom of the vibration sensor mounting base (3) is set in the groove on the mounting base (1). The connection between the vibration sensor mounting base (3) and the mounting base (1) is filled with damping material (2). A vibration sensor (5) is set on the vibration sensor mounting base (3). The damping material (2) is set separately.

2. The mechanical filtering device for tire vibration signals according to claim 1, characterized in that, The mounting base (1) includes: a mounting base body (11) and an upper bracket (12). The mounting base body (11) is a stepped cylinder. The upper bracket (12) is snapped onto the mounting base body (11) and fixedly connected to the mounting base body (11) by screws. The damping material (2) and the vibration sensor mounting base (3) are disposed in the upper bracket (12). The bottom of the damping material (2) abuts against the upper surface of the mounting base body (11).

3. The mechanical filtering device for tire vibration signals according to claim 2, characterized in that, The damping material (2) includes a damping base pad (21) and a damping sleeve (22). The damping base pad (21) and the damping sleeve (22) are snapped together. The damping base pad (21) is set on the upper side of the mounting base body (11), and the damping sleeve (22) is set inside the upper slot (12). The damping sleeve (22) is fitted on the outside of the vibration sensor mounting base (3).

4. The mechanical filtering device for tire vibration signals according to claim 3, characterized in that, The upper surface of the damping pad (21) is provided with an annular groove (211), and the lower surface of the damping sleeve (22) is provided with an annular protrusion (221). The end face of the annular protrusion (221) is transitioned by a circular arc, and the annular protrusion (221) extends into the annular groove (211) and engages with the annular groove (211).

5. The mechanical filtering device for tire vibration signals according to claim 1, characterized in that, The mounting base (1) and vibration sensor mounting base (3) are made of metal.

6. The mechanical filtering device for tire vibration signals according to claim 1, characterized in that, The damping material (2) is made of soft rubber or polyurethane.

Images