Tire noise testing system

Abstract

The invention provides a tire noise testing system, which relates to the technical field of vehicle testing and comprises a base, a driving box is arranged at the top end of the base, the top end of the driving box is fixedly connected with a turntable through a rotating shaft, a tire fixing mechanism is arranged on the turntable, and a simulated road surface mounting mechanism is further arranged at one end of the base. According to the device, tires of different specifications and sizes are clamped and fixed by arranging the tire fixing mechanism, then the simulated road surface plate is moved to be in contact with the tires through the simulated road surface mounting mechanism, then the tires are rotated through the driving box, and finally the tires are rotated by rotating the tires. And noise is collected and tested during rotation. In the prior art, a rotary drum method is high in measurement cost, is influenced by a site, and is inaccurate in measurement data; the technical problems of high cost of measuring equipment, high requirement on a test road section, large external influence and limited test equipment in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle testing, and in particular to a tire noise testing system. Background Art

[0002] With the construction of highways and the increase in the number of cars, people's travel range is getting wider and wider, and people have more and more opportunities to use highways. As people's awareness of environmental protection gradually increases, the problem of car noise has attracted more and more attention. The car noise that people often talk about mainly comes from engine noise, exhaust noise, fan noise, transmission system noise, braking system noise, tire noise and wind noise, etc. Among them, tire noise refers to the friction between the tires and the road surface when the vehicle is traveling at high speed. The worse the road conditions, the greater the tire noise. Therefore, tire noise is the main source of noise when the car is running at high speed.

[0003] Existing technologies for testing tire noise primarily employ the drum and coasting methods. However, the drum method suffers from high measurement costs, site-dependent influences, and inaccurate measurement data. The coasting method, on the other hand, suffers from high measurement equipment costs, strict test section requirements, significant external influences, and limited testing equipment. Therefore, addressing these challenges, there is an urgent need to develop a tire noise testing system that can overcome these shortcomings in current practical applications. Summary of the Invention

[0004] The present invention provides a tire noise testing system to solve the technical problems raised in the above background technology: the existing technology mainly uses the drum method and the coasting method to test tire noise. However, the drum method has high measurement costs, is affected by the site, and the measurement data is inaccurate; the coasting method has high measurement equipment costs, has high test section requirements, is greatly affected by external influences, and has limited test equipment.

[0005] In order to solve the above technical problems, the present invention discloses a tire noise testing system, comprising: a base, a drive box is provided on the top of the base, the top of the drive box is fixedly connected to the turntable via a rotating shaft, and a tire fixing mechanism is provided on the turntable, and a simulated road surface mounting mechanism is also provided at one end of the base.

[0006] Preferably, the tire fixing mechanism includes: a U-shaped mounting frame, the U-shaped mounting frame is fixedly mounted on the turntable, and the right end of the U-shaped mounting frame is fixedly mounted with the fixed end of the drive motor 1, and the output end of the drive motor 1 is fixedly mounted with one end of a threaded rod 1, the threaded rod 1 is rotatably connected to the front and rear inner walls of the U-shaped mounting frame, and the front and rear parts of the threaded rod 1 are provided with threaded sections with opposite rotation directions, and sliding rods are respectively provided on the left and right sides of the threaded rod 1, the front and rear ends of the sliding rod are fixedly mounted on the front and rear inner walls of the U-shaped mounting frame, and the front and rear parts of the sliding rod are respectively slidably connected with clamping components.

[0007] Preferably, the turntable rotates counterclockwise.

[0008] Preferably, a single-group clamping assembly includes: a fixed plate, the fixed plate is threadedly connected to the threaded rod, and the fixed plate is slidably connected to the slide rod, the front and rear ends of the fixed plate are fixedly mounted on a semicircular support platform, the left and right bottom ends of the semicircular support platform are slidably connected to two slide rails, the two slide rails are fixedly mounted on the front and rear sides of the U-shaped mounting frame, and the front and rear ends of the slide rails are fixedly mounted on two limit blocks, the limit blocks are fixedly connected to the top of the turntable, and a tire fixing block is fixedly mounted on the top of the semicircular support platform, and both sides of the tire fixing block are arranged to contact the inner wall of the tire.

[0009] Preferably, the simulated pavement installation mechanism includes: a workbench, the workbench is arranged on the left side of the base, an adjustment component is provided on the top of the workbench, a swing door is provided at the front end of the workbench, and several simulated pavement plane panels are placed inside the workbench.

[0010] Preferably, the adjustment component includes: an adjustment box, the adjustment box is fixedly mounted on the top of the workbench, and a drive motor 2 is fixedly mounted on the rear end of the adjustment box, the output end of the drive motor 2 rotates through the adjustment box and is connected to the rear end of the threaded rod 2, the front end of the threaded rod 2 is rotatably connected to the front end inner wall of the adjustment box, and a clamping plate is threadedly connected to the threaded rod 2, a connecting plate is fixedly mounted on the right end of the clamping plate, and a card slot is provided in the clamping plate, the simulated road surface plane plate slides from right to left and is clamped in the card slot, and a noise detector is fixedly mounted on the rear end of the clamping plate.

[0011] Preferably, the workbench is provided with a plurality of groups of simulated pavement plane plate placement devices, the simulated pavement plane plate placement devices are composed of two groups of upper and lower placement mechanisms, the upper placement mechanism includes: a roller, the roller is slidably connected to a slide groove provided on the inner wall of the workbench, and the roller is rotatably connected to the inner wall of the connecting block through a rotating shaft, and the bottom end of the connecting block is fixedly installed at one end of a U-shaped block, and two groups of shock-absorbing components are symmetrically arranged and installed in the U-shaped block; The shock-absorbing assembly includes: a sliding sleeve, which is fixedly mounted on the inner wall of the U-shaped block, and a sliding rod is slidably connected inside the sliding sleeve, one end of the sliding rod is fixedly connected to one end of a return spring, the other end of the sliding rod is fixedly connected to an arc plate, and the other end of the return spring is fixedly mounted on the inner wall of the sliding sleeve, and the other end of the arc plate is in contact with the simulated road surface plane plate.

[0012] Preferably, the drive box includes: a third drive motor, the third drive motor is fixedly mounted on the front end outer wall of the drive box, and the output end of the third drive motor rotates through the drive box and is connected to one end of the worm, the other end of the worm is rotatably connected to the inner wall of the drive box, and the worm is meshed with the worm wheel, the worm wheel is fixedly mounted on a connecting rod, and the top end of the connecting rod passes through the drive box and is fixedly connected to the rotating shaft, and the bottom end of the connecting rod is rotatably connected to the inner wall of the drive box.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a tire fixing mechanism to clamp and secure the tire. A simulated road surface mounted by a simulated road surface mounting mechanism is then brought into contact with the tire. The tire is then rotated by a drive box 2, while simultaneously performing tire noise testing. This effectively addresses the technical issues identified in the prior art: the high cost of the drum measurement method, which is affected by the site and produces inaccurate measurement data; and the high cost of the gliding measurement equipment, strict test section requirements, significant external influences, and limited test equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 A schematic diagram of the tire noise testing system provided in an embodiment of the present invention; Figure 2 A front view of a tire noise testing system provided by an embodiment of the present invention; Figure 3 A left side top view of the tire noise testing system provided by an embodiment of the present invention; Figure 4 A left side view of the internal structure of the drive box provided by an embodiment of the present invention; Figure 5 A schematic diagram of the internal structure of a workbench provided in an embodiment of the present invention; Figure 6 The embodiment of the present invention provides Figure 5 Schematic diagram of the enlarged structure of point A.

[0016] Reference numerals: 1. Base; 2. Drive box; 3. Rotating shaft; 4. Turntable; 5. U-shaped mounting bracket; 6. Drive motor 1; 7. Threaded rod 1; 8. Slide rod; 9. Fixed plate; 10. Semicircular support platform; 11. Slide rail; 12. Limit block; 13. Tire fixing block; 14. Tire; 15. Workbench; 16. Hinged door; 17. Adjustment box; 18. Drive motor 2; 19. Threaded rod 2; 20. Snap plate; 21. Connecting plate; 22. Slot; 23. Noise detector; 24. Drive motor 3; 25. Worm; 26. Worm gear; 27. Connecting rod; 28. Simulated road surface plane plate; 29. ​​Roller; 30. Slide groove; 31. Connecting block; 32. U-shaped block; 33. Sleeve; 34. Slide rod; 35. Return spring; 36. Arc plate. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0018] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0019] The present invention provides the following embodiments Example 1 The embodiment of the present invention provides a tire noise testing system. Figure 1 As shown, it includes: a base 1, a drive box 2 is provided on the top of the base 1, the top of the drive box 2 is fixedly connected to the turntable 4 through a rotating shaft 3, and a tire fixing mechanism is provided on the turntable 4, and a simulated road surface mounting mechanism is also provided at one end of the base 1.

[0020] The beneficial effects of the above technical solution are as follows: the present invention provides a tire fixing mechanism to clamp and secure the tire, then places the simulated road surface mounted by the simulated road surface mounting mechanism in contact with the tire, and then rotates the tire via the drive box 2, while simultaneously performing tire noise testing. This effectively addresses the technical issues identified in the prior art: the high cost of the drum measurement method, which is affected by the site and produces inaccurate measurement data; and the high cost of the gliding measurement equipment, strict test section requirements, significant external influences, and limited test equipment.

[0021] Example 2 On the basis of Example 1, Figure 1-4 As shown, a tire noise testing system, the tire fixing mechanism includes: a U-shaped mounting frame 5, the U-shaped mounting frame 5 is fixedly mounted on a turntable 4, and the right end of the U-shaped mounting frame 5 is fixedly mounted with a fixed end of a drive motor 6, and the output end of the drive motor 6 is fixedly mounted with one end of a threaded rod 7, the threaded rod 7 is rotatably connected to the front and rear inner walls of the U-shaped mounting frame 5, and the front and rear parts of the threaded rod 7 are provided with threaded sections with opposite rotation directions, and the left and right sides of the threaded rod 7 are respectively provided with sliding rods 8, the front and rear ends of the sliding rod 8 are fixedly mounted on the front and rear inner walls of the U-shaped mounting frame 5, and the front and rear parts of the sliding rod 8 are respectively slidably connected with clamping components.

[0022] Optionally, the rotation direction of the turntable 4 is counterclockwise.

[0023] Optionally, a single group of clamping components includes: a fixed plate 9, which is threadedly connected to a threaded rod 7, and the fixed plate 9 is slidably connected to a slide rod 8, the front and rear ends of the fixed plate 9 are fixedly mounted on a semicircular support platform 10, the left and right bottom ends of the semicircular support platform 10 are slidably connected to two slide rails 11, the two slide rails 11 are fixedly mounted on the front and rear sides of the U-shaped mounting frame 5, and the front and rear ends of the slide rails 11 are fixedly mounted on two limit blocks 12, the limit blocks 12 are fixedly connected to the top of the turntable 4, and a tire fixing block 13 is fixedly mounted on the top of the semicircular support platform 10, and both sides of the tire fixing block 13 are arranged to contact the inner wall of the tire 14.

[0024] Optionally, the simulated pavement installation mechanism includes: a workbench 15, the workbench 15 is arranged on the left side of the base 1, and an adjustment component is provided at the top of the workbench 15, and a swing door 16 is provided at the front end of the workbench 15, and several simulated pavement plane panels 28 are placed inside the workbench 15.

[0025] Optionally, the adjustment component includes: an adjustment box 17, the adjustment box 17 is fixedly mounted on the top of the workbench 15, and a drive motor 2 18 is fixedly mounted on the rear end of the adjustment box 17, the output end of the drive motor 2 18 rotates through the adjustment box 17 and is connected to the rear end of the threaded rod 2 19, the front end of the threaded rod 2 19 is rotatably connected to the front end inner wall of the adjustment box 17, and a clamping plate 20 is threadedly connected to the threaded rod 2 19, a connecting plate 21 is fixedly mounted on the right end of the clamping plate 20, and a card slot 22 is provided in the clamping plate 20, the simulated road surface plane plate 28 slides from right to left and is clamped in the card slot 22, and a noise detector 23 is fixedly mounted on the rear end of the clamping plate 20.

[0026] The working principle of the above technical solution is as follows: when it is necessary to test the tire noise, first place the tire 14 on both sides of the semicircular support platform 10, then start the drive motor 6, the drive motor 6 rotates to drive the threaded rod 7 fixedly connected to it to rotate, the threaded rod 7 rotates to drive the fixing plate 9 threadedly connected to it to rotate, the fixing plate 9 rotates to drive the semicircular support platforms 10 on both sides threadedly connected to it to rotate, so that the bottom end of the semicircular support platform 10 moves back and forth on the slide rail 11, so that the tire fixing block 13 fixedly connected to the top of the semicircular support platform 10 fixes the tire 14, and then the simulated road surface plane plate 28 is clamped in the clamping slot 22 from right to left. Then, the drive motor 2 18 is started, and the rotation of the drive motor 2 18 drives the threaded rod 2 19 to rotate, and the rotation of the threaded rod 2 19 drives the clamping plate 20 threadedly connected to it to move left and right, thereby making the simulated road surface plane plate 28 contact one side of the tire 14, and finally, under the operation of the drive assembly of the drive box 2, the top shaft 3 is driven to rotate, and the rotation of the shaft 3 drives the turntable 4 fixedly connected to it to rotate, and further drives the top tire fixing mechanism to rotate, thereby making the simulated road surface plane plate 28 contact the tire 14, and finally, the noise test is performed through the noise detector 23, and the tire noise is detected by replacing different simulated road surface plane plates 28 and tires 14.

[0027] The beneficial effects of the above technical solution are as follows: by providing the swing door 16, it is convenient to take out and put in several simulated road surface plane plates 28 placed in the workbench 15; by providing the base 1, it is convenient to effectively fix and support the drive box and the tire fixing mechanism; by providing the drive motor 16 and the threaded rod 17, it is convenient to effectively move the two fixing plates 9 threadedly connected to the threaded rod 17 away from and towards each other, and further adjust the position of the tire fixing blocks 13 on both sides, so as to effectively clamp and fix tires 14 of different diameters; by providing the drive motor 218 and the threaded rod 219, by adjusting the forward and reverse rotation of the drive motor 21, it is convenient to move the clamping plate 20 and the connecting plate 21 left and right, thereby moving the simulated road surface plane plate 28 clamped in the clamping slot 22 to contact the tire 14; by providing the noise detector 23, it is convenient to effectively test and record the noise generated by the tire and the simulated road surface plane plate 28; by providing the slide rail 11 and the limit block 12, it is convenient to effectively limit the movement of the semicircular support platform 10, which is very convenient and practical.

[0028] Example 3 On the basis of Example 1-2, Figure 5-6 As shown, a tire noise testing system is provided. The workbench 15 is provided with several sets of simulated road surface plane plate placement devices. The simulated road surface plane plate placement devices are composed of two sets of placement mechanisms, the upper placement mechanism including: a roller 29, the roller 29 is slidably connected to a slide groove 30 provided on the inner wall of the workbench 15, and the roller 29 is rotatably connected to the inner wall of a connecting block 31 via a rotating shaft. The bottom end of the connecting block 31 is fixedly mounted on one end of a U-shaped block 32. Two sets of shock absorbing components are symmetrically installed in the left and right of the U-shaped block 32. The shock-absorbing assembly includes: a sliding sleeve 33, which is fixedly mounted on the inner wall of the U-shaped block 32, and a sliding rod 34 is slidably connected inside the sliding sleeve 33, one end of the sliding rod 34 is fixedly connected to one end of a return spring 35, and the other end of the sliding rod 34 is fixedly connected to an arc plate 36, and the other end of the return spring 35 is fixedly mounted on the inner wall of the sliding sleeve 33, and the other end of the arc plate 36 is in contact with the simulated road surface plane plate 28.

[0029] Optionally, the drive box 2 includes: a drive motor three 24, the drive motor three 24 is fixedly mounted on the front end outer wall of the drive box 2, and the output end of the drive motor three 24 rotates through the drive box 2 and is connected to one end of a worm 25, the other end of the worm 25 is rotatably connected to the inner wall of the drive box 2, and the worm 25 is meshed with a worm gear 26, the worm gear 26 is fixedly mounted on a connecting rod 27, and the top end of the connecting rod 27 passes through the drive box 2 and is fixedly connected to the rotating shaft 3, and the bottom end of the connecting rod 27 is rotatably connected to the inner wall of the drive box 2.

[0030] The working principle of the above technical solution is: start the drive motor three 24, the drive motor three 24 rotates to drive the worm 25 fixedly connected to it to rotate, the worm 25 rotates to drive the worm wheel 26 engaged with it to rotate, the worm wheel 26 rotates to drive the connecting rod 27 fixedly connected to it to rotate, the connecting rod 27 rotates to drive the rotating shaft 3 fixedly connected to it to rotate, when it is necessary to take out the simulated pavement plane plate 28 from the workbench 15, by opening the swing door 16, and then the simulated pavement plane plate 28 to be tested is moved to a certain position outside the workbench 15 under the action of the roller 29, and then the simulated pavement plane plate 28 is taken out, which is very convenient and practical.

[0031] The beneficial effects of the above technical solution are as follows: by setting the driving motor three 24, it is conducive to the rotation of the top turntable 4, thereby further driving the tire 14 fixed by the tire fixing mechanism to rotate, thereby realizing the noise test; by setting a number of rollers 29, it is conducive to the removal of the simulated pavement plane plate 28, which is very convenient; by setting the reset spring 35, it is conducive to the adjustment of simulated pavement plane plates 28 of different widths, and when the workbench 15 moves, it prevents the simulated pavement plane plate 28 from being damaged by excessive vibration; and by setting a number of groups of placement devices, it is conducive to the storage of multiple simulated pavement plane plates 28, which is very convenient and practical.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A tire noise testing system, comprising: A base (1), characterized in that a drive box (2) is provided at the top of the base (1), the top of the drive box (2) is fixedly connected to the turntable (4) through a rotating shaft (3), and a tire fixing mechanism is provided on the turntable (4), and one end of the base (1) is also provided with a simulated road surface installation mechanism, and the simulated road surface installation mechanism comprises: a workbench (15), the workbench (15) is provided on the left side of the base (1), and an adjustment component is provided at the top of the workbench (15), and a swing door (16) is provided at the front end of the workbench (15), and a plurality of simulated road surface plane panels (28) are placed inside the workbench (15); The adjustment component comprises: an adjustment box (17), the adjustment box (17) is fixedly mounted on the top of the workbench (15), and a second drive motor (18) is fixedly mounted on the rear end of the adjustment box (17), the output end of the second drive motor (18) rotates through the adjustment box (17) and is connected to the rear end of the second threaded rod (19), the front end of the second threaded rod (19) is rotationally connected to the front inner wall of the adjustment box (17), and the second threaded rod (19) is threadedly connected to a clamping plate (20), a connecting plate (21) is fixedly mounted on the right end of the clamping plate (20), and a clamping slot (22) is provided in the clamping plate (20), the simulated road surface plane plate (28) slides from right to left and is clamped in the clamping slot (22), and a noise detector (23) is fixedly mounted on the rear end of the clamping plate (20).

2. A tire noise testing system according to claim 1, characterized in that: The tire fixing mechanism comprises: a U-shaped mounting frame (5), the U-shaped mounting frame (5) is fixedly mounted on the turntable (4), and the right end of the U-shaped mounting frame (5) is fixedly mounted with the fixed end of a driving motor (6), and the output end of the driving motor (6) is fixedly mounted with one end of a threaded rod (7), the threaded rod (7) is rotatably connected to the front and rear inner walls of the U-shaped mounting frame (5), and the front and rear parts of the threaded rod (7) are provided with threaded sections with opposite rotation directions, and the left and right sides of the threaded rod (7) are respectively provided with sliding rods (8), the front and rear ends of the sliding rod (8) are fixedly mounted on the front and rear inner walls of the U-shaped mounting frame (5), and the front and rear parts of the sliding rod (8) are respectively slidably connected with clamping components.

3. The tire noise testing system according to claim 2, characterized in that: The rotation direction of the turntable (4) is counterclockwise.

4. The tire noise testing system according to claim 2, characterized in that: The single-group clamping assembly comprises: a fixed plate (9), wherein the fixed plate (9) is threadedly connected to the threaded rod (7), and the fixed plate (9) is slidably connected to the slide rod (8), the front and rear ends of the fixed plate (9) are fixedly mounted on a semicircular support platform (10), the left and right bottom ends of the semicircular support platform (10) are slidably connected to two slide rails (11), the two slide rails (11) are fixedly mounted on the front and rear sides of the U-shaped mounting frame (5), and the front and rear ends of the slide rails (11) are fixedly mounted on two limit blocks (12), the limit blocks (12) are fixedly connected to the top of the turntable (4), and a tire fixing block (13) is fixedly mounted on the top of the semicircular support platform (10), and both sides of the tire fixing block (13) are arranged to contact the inner wall of the tire (14).

5. The tire noise testing system according to claim 1, characterized in that: The workbench (15) is provided with a plurality of simulated pavement plane plate placement devices, the simulated pavement plane plate placement devices are composed of two groups of placement mechanisms, the upper placement mechanism comprising: a roller (29), the roller (29) being slidably connected to a slide groove (30) provided on the inner wall of the workbench (15), and the roller (29) being rotatably connected to the inner wall of a connecting block (31) via a rotating shaft, and the bottom end of the connecting block (31) being fixedly mounted on one end of a U-shaped block (32), and two groups of shock absorbing components being symmetrically arranged on the left and right sides of the U-shaped block (32); The damping assembly comprises a sliding sleeve (33), the sliding sleeve (33) being fixedly mounted on the inner wall of the U-shaped block (32), and a sliding rod (34) being slidably connected in the sliding sleeve (33), one end of the sliding rod (34) being fixedly connected to one end of a return spring (35), the other end of the sliding rod (34) being fixedly connected to an arc plate (36), and the other end of the return spring (35) being fixedly mounted on the inner wall of the sliding sleeve (33), and the other end of the arc plate (36) being in contact with a simulated road surface plane plate (28).

6. The tire noise testing system according to claim 1, characterized in that: The drive box (2) comprises: a drive motor three (24), the drive motor three (24) is fixedly mounted on the front end outer wall of the drive box (2), and the output end of the drive motor three (24) rotates through the drive box (2) and is connected to one end of a worm (25), the other end of the worm (25) is rotationally connected to the inner wall of the drive box (2), and the worm (25) is meshedly connected to a worm wheel (26), the worm wheel (26) is fixedly mounted on a connecting rod (27), and the top end of the connecting rod (27) passes through the drive box (2) and is fixedly connected to the rotating shaft (3), and the bottom end of the connecting rod (27) is rotationally connected to the inner wall of the drive box (2).

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