An asphalt pavement noise testing device

Abstract

The utility model discloses an asphalt pavement noise testing arrangement relates to noise test technical field, including support, the support upper end position is installed transmission mechanism, the support upper end one side position is installed detection box, the support downside is located detection box inside bottom end position and is installed clamping mechanism, detection box inside one side position is installed noise detector, detection box inside upper end position is installed moving mechanism, moving mechanism bottom end both sides position is installed telescopic link, telescopic link bottom end position installs the mounting panel, the mounting panel bottom end both sides position installs pressure sensor, pressure sensor bottom end position installs the mounting bracket, the mounting bracket upper side position rotatory mounting has the wheel, detection box front end one side sliding installation has the gate. The utility model discloses through transmission mechanism transmission to detection box inside, will the gate close, through clamping mechanism to pitch plate material and fix.

Description

Technical Field

[0001] This utility model belongs to the field of noise testing, specifically, it relates to an asphalt pavement noise testing device. Background Technology

[0002] Asphalt pavement refers to various types of road surfaces constructed by incorporating road-grade asphalt into mineral materials. Asphalt binders enhance the ability of paving aggregates to resist damage from traffic and natural factors, resulting in a smooth, dust-free, impermeable, and durable surface. Therefore, asphalt pavement is one of the most widely used types of road construction. Noise testing is required during the construction of asphalt pavement.

[0003] Chinese Patent No. CN201821525811.3 discloses an asphalt pavement noise testing device, which includes a soundproof box. The soundproof box contains a rotating motor, which is connected to a rolling wheel via a connecting rod. The top of the rolling wheel is connected to a pressure generating device via a pressure transmission device. The rolling wheel is located above the asphalt mixture specimen. The asphalt mixture specimen is fixed on both sides by baffles. The soundproof box also contains a noise sensor.

[0004] During use, the asphalt slabs are very inconvenient to handle, and they are also prone to shaking during testing.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide an asphalt pavement noise testing device.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] An asphalt pavement noise testing device includes a support frame, a transmission mechanism mounted on the upper end of the support frame, a testing box mounted on one side of the upper end of the support frame, a clamping mechanism mounted on the lower side of the support frame at the bottom of the testing box, a noise detector mounted on one side of the testing box, a moving mechanism mounted on the upper end of the testing box, telescopic rods mounted on both sides of the bottom of the moving mechanism, a mounting plate mounted on the bottom of the telescopic rods, pressure sensors mounted on both sides of the bottom of the mounting plate, a mounting frame mounted on the bottom of the pressure sensors, wheels rotatably mounted on the upper side of the mounting frame, a gate plate slidably mounted on one side of the front end of the testing box, and a fixing bolt mounted in the middle of the front end of the testing box.

[0009] Optionally, the clamping mechanism consists of a first lead screw, a first lead screw nut, a first power mechanism, and a clamping plate. The first lead screw nut is installed at the bottom of the clamping plate. The first lead screw nut is rotatably installed on both sides of the upper end of the first lead screw. The first lead screw is rotatably installed inside the bracket. One end of the first lead screw passes through the bracket and is installed at the front end of the first power mechanism. The first power mechanism is installed on one side of the bracket.

[0010] Optionally, the two sides of the bottom end of the clamping plate are slidably mounted on the upper side of the first guide rod, and the first guide rod is welded to the inside of the bottom end of the bracket.

[0011] Optionally, an observation window is installed on one side of the testing box, and a soundproof film is provided on the outside of the observation window.

[0012] Optionally, the transmission mechanism consists of multiple rollers, a third power mechanism, and pulleys. The rollers are rotatably mounted between the supports, the pulleys are mounted on one side of the rollers, and the pulleys on adjacent sides of the rollers are connected by belts. One end of the roller passes through the support and is mounted at the front end of the third power mechanism, which is mounted on one side of the support.

[0013] Optionally, the moving mechanism consists of a second lead screw, a second lead screw nut, a second power mechanism, and a slider. The second lead screw nut is installed in the middle of the slider. The second lead screw nut is rotatably installed on the upper side of the second lead screw. The second lead screw is rotatably installed inside the detection box. One end of the second lead screw passes through the detection box and is installed at the front end of the second power mechanism. The second power mechanism is installed on one side of the detection box.

[0014] Optionally, the slider is slidably mounted with a second guide rod on both sides of the second lead screw, and the second guide rod is installed inside the detection box.

[0015] Optionally, the first power mechanism, the second power mechanism, and the third power mechanism consist of an electric motor and a transmission, with the electric motor mounted on one side of the transmission.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0017] 1. The material is transferred to the testing box via a transmission mechanism, the gate is sealed, and the asphalt slab is fixed by a clamping mechanism.

[0018] 2. When in use, the conveying mechanism drives the drum to rotate through the third power mechanism. During the rotation of the drum, the material will be conveyed into the detection box.

[0019] 3. When the moving mechanism is in use, the second power mechanism is turned on by switching on the switch. The second power mechanism will drive the second lead screw to rotate. During the rotation of the second lead screw, the slider will move through the second lead screw nut, thereby driving the wheel to move.

[0020] 4. When in use, the first, second, and third power mechanisms are activated by switching on the motor, which provides power, and the gearbox will adjust the speed of the motor.

[0021] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the structure of a bracket according to an embodiment of the present invention;

[0025] Figure 3 This is a side view of an embodiment of the present invention.

[0026] Figure 4 This is a schematic diagram of the transmission mechanism according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the clamping mechanism according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the wheel mounting structure according to an embodiment of the present invention;

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Bracket; 2. Transmission mechanism; 3. Detection box; 4. Observation window; 5. Sound insulation membrane; 6. Moving mechanism; 7. Clamping mechanism; 8. Third power mechanism; 9. Electric motor; 10. Gearbox; 11. Pulley; 12. Roller; 13. Clamping plate; 14. First guide rod; 15. First power mechanism; 16. First lead screw nut; 17. First lead screw; 18. Fixing bolt; 19. Gate plate; 20. Second lead screw; 21. Second lead screw nut; 22. Slider; 23. Wheel; 24. Second power mechanism; 25. Noise detector; 26. Mounting bracket; 27. Telescopic rod; 28. Mounting plate; 29. ​​Second guide rod; 30. Pressure sensor.

[0031] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings.

[0033] Please see Figure 1-6 As shown, this embodiment provides an asphalt pavement noise testing device, including a bracket 1, a transmission mechanism 2 installed at the upper end of the bracket 1, a testing box 3 installed on one side of the upper end of the bracket 1, a clamping mechanism 7 installed at the bottom of the testing box 3 inside the lower side of the bracket 1, a noise detector 25 installed on one side of the testing box 3 inside, a moving mechanism 6 installed at the upper end of the testing box 3, telescopic rods 27 installed on both sides of the bottom of the moving mechanism 6, a mounting plate 28 installed at the bottom of the telescopic rods 27, pressure sensors 30 installed on both sides of the bottom of the mounting plate 28, a mounting frame 26 installed at the bottom of the pressure sensors 30, a wheel 23 rotatably installed on the upper side of the mounting frame 26, a gate 19 slidably installed on one side of the front end of the testing box 3, and a fixing bolt 18 installed in the middle of the front end of the testing box 3.

[0034] One application of this embodiment is as follows: During use, the precast asphalt slab is placed on the upper side of the transmission mechanism 2 and transmitted to the inside of the detection box 3 through the transmission mechanism 2. The gate 19 is closed, and the asphalt slab is fixed by the clamping mechanism 7. After fixing, the telescopic rod 27 is turned on by the switch. The telescopic rod 27 drives the wheel 23 to move downward, so that the wheel 23 contacts the asphalt slab. During the contact process, the pressure sensor 30 can detect the pressure between the wheel 23 and the slab. The moving mechanism 6 will drive the wheel 23 to move. During the movement, the noise generated by the movement is detected by noise reduction.

[0035] In this embodiment, the clamping mechanism 7 consists of a first lead screw 17, a first lead screw nut 16, a first power mechanism 15, and a clamping plate 13. The first lead screw nut 16 is installed at the bottom of the clamping plate 13. The first lead screw nut 16 is rotatably installed on both sides of the upper end of the first lead screw 17. The first lead screw 17 is rotatably installed inside the bracket 1. One end of the first lead screw 17 passes through the bracket 1 and is installed at the front end of the first power mechanism 15. The first power mechanism 15 is installed on one side of the bracket 1. When the clamping mechanism 7 is in use, the first power mechanism 15 is turned on by a switch. The first power mechanism 15 drives the first lead screw 17 to rotate. The first lead screw 17 will drive the clamping plate 13 to move through the first lead screw nut 16, and the workpiece is clamped by the clamping plate 13.

[0036] In this embodiment, the two sides of the bottom end of the clamping plate 13 are slidably mounted on the upper side of the first guide rod 14. The first guide rod 14 is welded to the inside of the bottom end of the bracket 1. The setting of the first guide rod 14 can limit the range of motion of the clamping plate 13 and avoid the phenomenon of the clamping plate 13 shaking during use.

[0037] In this embodiment, an observation window 4 is installed on one side of the testing box 3, and a sound insulation film 5 is provided on the outside of the observation window 4. The observation window 4 is designed to facilitate the staff to observe the situation inside the testing box 3, and the sound insulation film 5 can increase the testing effect of the observation window 4.

[0038] In this embodiment, the transmission mechanism 2 consists of multiple rollers 12, a third power mechanism 8, and pulleys 11. The rollers 12 are rotatably mounted between the supports 1, and the pulleys 11 are mounted on one side of the rollers 12. The pulleys 11 on the side of adjacent rollers 12 are connected by belts. One end of the roller 12 passes through the support 1 and is mounted at the front end of the third power mechanism 8. The third power mechanism 8 is mounted on one side of the support 1. When in use, the transmission mechanism 2 drives the rollers 12 to rotate through the third power mechanism 8. During the rotation of the rollers 12, the material will be transferred into the detection box 3.

[0039] In this embodiment, the moving mechanism 6 consists of a second lead screw 20, a second lead screw 20 nut 21, a second power mechanism 24, and a slider 22. The second lead screw 20 nut 21 is installed in the middle of the slider 22. The second lead screw 20 nut 21 is rotatably installed on the upper side of the second lead screw 20. The second lead screw 20 is rotatably installed inside the detection box 3. One end of the second lead screw 20 passes through the detection box 3 and is installed at the front end of the second power mechanism. The second power mechanism 24 is installed on one side of the detection box 3. When the moving mechanism 6 is in use, the second power mechanism 24 is turned on by a switch. The second power mechanism 24 will drive the second lead screw 20 to rotate. During the rotation of the second lead screw 20, the slider 22 will be moved through the second lead screw 20 nut 21, thereby driving the wheel 23 to move.

[0040] In this embodiment, the slider 22 is slidably mounted with the second guide rod 29 on both sides of the second lead screw 20, and the second guide rod 29 is installed inside the detection box 3.

[0041] The second guide rod 29 is designed to guide the movement of the slider 22 and prevent the second slider 22 from wobbling during use.

[0042] In this embodiment, the first power mechanism 15, the second power mechanism 24 and the third power mechanism 8 are composed of an electric motor 9 and a transmission 10. The electric motor 9 is installed on one side of the transmission 10. When in use, the first power mechanism 15, the second power mechanism 24 and the third power mechanism 8 turn on the electric motor 9 through a switch. The electric motor 9 provides power and the transmission 10 will adjust the speed of the electric motor 9.

[0043] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. An asphalt pavement noise testing device, characterized in that, The device includes a bracket (1), a transmission mechanism (2) installed at the upper end of the bracket (1), a detection box (3) installed on one side of the upper end of the bracket (1), a clamping mechanism (7) installed at the bottom of the detection box (3) on the lower side of the bracket (1), a noise detector (25) installed on one side of the detection box (3), a moving mechanism (6) installed at the upper end of the detection box (3), telescopic rods (27) installed on both sides of the bottom end of the moving mechanism (6), a mounting plate (28) installed at the bottom end of the telescopic rods (27), pressure sensors (30) installed on both sides of the bottom end of the mounting plate (28), a mounting bracket (26) installed at the bottom end of the pressure sensors (30), a wheel (23) rotatably installed on the upper side of the mounting bracket (26), a gate (19) slidably installed on one side of the front end of the detection box (3), and a fixing bolt (18) installed in the middle of the front end of the detection box (3).

2. The asphalt pavement noise testing device according to claim 1, characterized in that, The clamping mechanism (7) consists of a first lead screw (17), a first lead screw nut (16), a first power mechanism (15), and a clamping plate (13). The first lead screw nut (16) is installed at the bottom of the clamping plate (13). The first lead screw nut (16) is rotatably installed on both sides of the upper end of the first lead screw (17). The first lead screw (17) is rotatably installed inside the bracket (1). One end of the first lead screw (17) passes through the bracket (1) and is installed at the front end of the first power mechanism (15). The first power mechanism (15) is installed on one side of the bracket (1).

3. The asphalt pavement noise testing device according to claim 2, characterized in that, The clamp (13) is slidably mounted on the upper side of the first guide rod (14) on both sides of the bottom end, and the first guide rod (14) is welded to the inside of the bottom end of the bracket (1).

4. The asphalt pavement noise testing device according to claim 1, characterized in that, An observation window (4) is installed on one side of the testing box (3), and a sound insulation film (5) is provided on the outside of the observation window (4).

5. The asphalt pavement noise testing device according to claim 2, characterized in that, The transmission mechanism (2) consists of multiple rollers (12), a third power mechanism (8), and pulleys (11). The rollers (12) are rotatably mounted between the brackets (1). The pulleys (11) are mounted on one side of the rollers (12). The pulleys (11) on adjacent sides of the rollers (12) are connected by belts. One end of the roller (12) passes through the bracket (1) and is mounted at the front end of the third power mechanism (8). The third power mechanism (8) is mounted on one side of the bracket (1).

6. The asphalt pavement noise testing device according to claim 5, characterized in that, The moving mechanism (6) consists of a second lead screw (20), a second lead screw nut (21), a second power mechanism (24), and a slider (22). The second lead screw nut (21) is installed in the middle of the slider (22). The second lead screw nut (21) is rotatably installed on the upper side of the second lead screw (20). The second lead screw (20) is rotatably installed inside the detection box (3). One end of the second lead screw (20) passes through the detection box (3) and is installed at the front end of the second moving mechanism. The second power mechanism (24) is installed on one side of the detection box (3).

7. The asphalt pavement noise testing device according to claim 6, characterized in that, The slider (22) is slidably mounted with a second guide rod (29) on both sides of the second lead screw (20), and the second guide rod (29) is installed inside the detection box (3).

8. The asphalt pavement noise testing device according to claim 6, characterized in that, The first power mechanism (15), the second power mechanism (24) and the third power mechanism (8) are composed of an electric motor (9) and a transmission (10), wherein the electric motor (9) is installed on one side of the transmission (10).

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