Gear noise testing device

Abstract

This utility model discloses a gear transmission noise testing device, comprising a base, a test chamber, an active component, a motor, a sound insulation component, a driven component, and a cover. The test chamber is fixedly mounted on the top of the base, and a first sound insulation plate is fixedly mounted on the inner side of the test chamber. The active component is fixedly mounted on the inner side of the test chamber, and the motor is fixedly mounted on the top of the base, with its output end connected to the active component via a coupling. The sound insulation component abuts against an aluminum cover at the top of the base and a sound insulation felt fixed inside the aluminum cover. The driven component is fixedly mounted on the inner side of the test chamber, and the cover is hinged to the top of the test chamber. A second sound insulation plate is fixedly mounted on the cover. This utility model achieves sound insulation by using the first sound insulation plate, the sound insulation component, and the second sound insulation plate, preventing external noise from affecting the test. Furthermore, the inclusion of the driven component enables adjustability, making it suitable for gears of different sizes and broadening its application range.

Description

Technical Field

[0001] This utility model relates to the field of gear transmission noise testing technology, specifically a gear transmission noise testing device. Background Technology

[0002] Gear transmission generates noise, and a gear transmission noise testing device is used to understand this noise. This device is a specialized instrument for measuring and analyzing the noise and vibration generated by gear systems during operation. Its design requires the integration of acoustic, mechanical transmission, and signal processing technologies. However, gear transmission noise testing devices are easily interfered with by external environmental noise due to the lack of obstructions during use, and the noise generated by the motor can also affect the testing results, presenting certain shortcomings. Therefore, we propose a gear transmission noise testing device. Utility Model Content

[0003] The present invention aims to solve the problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a gear transmission noise testing device, including a base, a test box, an active component, a motor, a sound insulation component, a driven component, and a box cover. The test box is fixedly installed at the top of the base, and a first sound insulation plate is fixedly installed on the inner side of the test box. The active component is fixedly installed on the inner side of the test box. The motor is fixedly installed at the top of the base, and the output end of the motor is connected to the active component through a coupling. The sound insulation component abuts against an aluminum cover at the top of the base and a sound insulation felt fixed on the inner side of the aluminum cover. The driven component is fixedly installed on the inner side of the test box. The box cover is hinged to the top of the test box, and a second sound insulation plate is fixedly installed on the box cover.

[0005] Preferably, a noise sensor for testing noise is fixedly installed at the top of the base.

[0006] Preferably, the active component includes a rotating shaft connected to the bearing of the test chamber, a stop block fixedly disposed on the rotating shaft, and a first fastening nut threadedly connected to the stop block.

[0007] Preferably, gaskets are provided on both sides of the aluminum cover, and both gaskets are fixedly connected to the base by bolts.

[0008] Preferably, the driven component includes a guide rail fixedly mounted on the first sound insulation plate, a sliding seat slidably connected to the guide rail, a fastening knob threadedly connected to the sliding seat, a driven shaft connected to the bearing of the sliding seat, and a second fastening nut threadedly connected to the driven shaft.

[0009] Preferably, the lid of the box is fixed with soundproof glass.

[0010] Preferably, the second sound insulation board has the same thickness as the first sound insulation board, and both the second sound insulation board and the first sound insulation board are galvanized steel sheets.

[0011] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: The cover of the box can be rotated to cover the test box, forming the first layer of sound insulation. The combination of the first and second sound insulation boards can form the second layer of sound insulation. The double-layer sound insulation effectively avoids external environmental noise interference with the test. At the same time, the aluminum cover can reduce the sound bridge effect, and the sound insulation felt can isolate noise. Thus, the noise generated by the motor can be avoided from interfering with the test through the sound insulation components. Then, the fastening knob of the driven component can be loosened. After loosening, the sliding seat can slide along the guide rail. After sliding to the appropriate position, the sliding seat can be tightened to adjust the height of the driven shaft to adapt to gears of different sizes, thus having a wide range of applications. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This utility model Figure 1 Schematic diagram of the structure of the motor and active components;

[0014] Figure 3 This utility model Figure 1 Schematic diagram of the sound insulation component;

[0015] Figure 4 This utility model Figure 1 A schematic diagram of the driven component.

[0016] Figure label:

[0017] 100. Base; 101. Noise sensor;

[0018] 200. Test box; 201. First sound insulation panel;

[0019] 300. Active component; 301. Rotating shaft; 302. Stop block; 303. First fastening nut;

[0020] 400. Electric motor;

[0021] 500. Sound insulation components; 501. Aluminum cover; 502. Sound insulation felt; 503. Gasket;

[0022] 600. Driven assembly; 601. Guide rail; 602. Sliding seat; 603. Fastening knob; 604. Driven shaft; 605. Second fastening nut;

[0023] 700. Box lid; 701. Second soundproofing panel; 702. Soundproof glass. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0025] The following describes some embodiments of this utility model with reference to the accompanying drawings, providing a gear transmission noise testing device. Example

[0026] Reference Figure 1-4 This is the first embodiment of the present utility model. This embodiment provides a gear transmission noise testing device, including a base 100, a test box 200, an active component 300, a motor 400, a sound insulation component 500, a driven component 600, and a box cover 700.

[0027] Specifically, a noise sensor 101 for testing noise is fixedly installed at the top of the base 100. In use, the noise sensor 101 can detect noise and convert it into an output signal to be transmitted to the test terminal so as to test the noise of gear transmission.

[0028] Specifically, the test box 200 is fixedly installed on the top of the base 100, and a first sound insulation plate 201 is fixed on the inner side of the test box 200. During use, the test box 200 can block external noise, and the first sound insulation plate 201 can further block it to prevent external noise from affecting the test.

[0029] Specifically, the active component 300 is fixedly installed inside the test chamber 200. The active component 300 includes a rotating shaft 301 connected to the bearing of the test chamber 200, a stop block 302 fixedly installed on the rotating shaft 301, and a first fastening nut 303 threadedly connected to the stop block 302. In use, a gear can be inserted through the rotating shaft 301. After insertion, it is fixed by rotating the first fastening nut 303. After fixing, the rotating shaft 301 can drive the gear to rotate so as to test the noise when the gear rotates.

[0030] Specifically, the motor 400 is fixedly mounted on the top of the base 100, and the output end of the motor 400 is connected to the active component 300 through a coupling. In use, the motor 400 can drive the active component 300 to rotate, so as to drive the gears to generate noise.

[0031] Specifically, the sound insulation component 500 abuts against the aluminum cover 501 at the top of the base 100 and the sound insulation felt 502 fixed inside the aluminum cover 501. Gaskets 503 are provided on both sides of the aluminum cover 501. Both gaskets 503 are fixedly connected to the base 100 by bolts. In use, the aluminum cover 501 can reduce the sound bridge effect, while the sound insulation felt 502 can isolate noise. Thus, the noise generated by the motor 400 can be avoided from interfering with the test through the sound insulation component 500, resulting in high accuracy. The gaskets 503 can increase the contact area between the aluminum cover 501 and the base 100 for easier installation.

[0032] Specifically, the driven component 600 is fixedly installed inside the test chamber 200. The driven component 600 includes a guide rail 601 fixedly installed on the first sound insulation plate 201, a sliding seat 602 slidably connected to the guide rail 601, a fastening knob 603 threadedly connected to the sliding seat 602, a driven shaft 604 connected to the bearing of the sliding seat 602, and a second fastening nut 605 threadedly connected to the driven shaft 604. In use, a gear can be inserted through the driven shaft 604. After insertion, it is fixed by rotating the second fastening nut 605 for installation. After installation, the fastening knob 603 can be loosened. After loosening, the height of the sliding seat 602 can be adjusted up and down so that the moving gear can mesh with the gear on the driving component 300. At the same time, it can adapt to gears of different sizes and has a wide range of applications.

[0033] Specifically, the lid 700 is hinged to the top of the test chamber 200. A second sound insulation panel 701 is fixedly installed on the lid 700. The second sound insulation panel 701 has the same thickness as the first sound insulation panel 201. Both the second sound insulation panel 701 and the first sound insulation panel 201 are made of galvanized steel. A soundproof glass 702 is fixed on the lid 700. In use, the lid 700 can block external noise, and the second sound insulation panel 701 can further block it, preventing external noise from affecting the test. Then, the test can be observed through the soundproof glass 702 without affecting the sound insulation.

[0034] The working principle and usage process of this utility model are as follows: First, the aluminum cover 501 of the sound insulation component 500 can be used to cover the motor 400. Then, the gasket 503 is fixed to the base 100 with screws. Next, the box cover 700 is rotated open. After opening, the gear is inserted into the rotating shaft 301 of the active component 300 and fixed by rotating the first fastening nut 303. Then, the other gear is inserted into the driven shaft 604 of the driven component 600 and fixed by rotating the second fastening nut 605. After fixing, the fastening knob 603 is loosened. After loosening, the sliding seat 602 is moved up and down until the two gears mesh and connect. After connection, the fastening knob 603 is tightened to fix the two gears. After fixing, the box cover 700 is rotated to cover the test box 200. Finally, the motor 400 can be controlled to run. The running motor 400 will drive the two gears to rotate through the active component 300, thus testing the noise.

[0035] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A gear transmission noise testing device, characterized in that, include: Base (100); The test box (200) is fixedly installed on the top of the base (100), and a first sound insulation plate (201) is fixed on the inner side of the test box (200). The active component (300) is fixedly installed inside the test chamber (200); The motor (400) is fixedly mounted on the top of the base (100), and the output end of the motor (400) is connected to the active component (300) via a coupling; The sound insulation assembly (500) consists of an aluminum cover (501) abutting against the top of the base (100) and a sound insulation felt (502) fixed inside the aluminum cover (501). The driven component (600) is fixedly disposed inside the test chamber (200); A lid (700) is hinged to the top of the test box (200), and a second sound insulation plate (701) is fixedly installed on the lid (700).

2. The gear transmission noise testing device according to claim 1, characterized in that, A noise sensor (101) for testing noise is fixedly installed at the top of the base (100).

3. The gear transmission noise testing device according to claim 1, characterized in that, The active component (300) includes a rotating shaft (301) connected to the bearing of the test box (200), a stop (302) fixedly mounted on the rotating shaft (301), and a first fastening nut (303) threadedly connected to the stop (302).

4. The gear transmission noise testing device according to claim 1, characterized in that, Gaskets (503) are provided on both sides of the aluminum cover (501), and both gaskets (503) are fixedly connected to the base (100) by bolts.

5. The gear transmission noise testing device according to claim 1, characterized in that, The driven assembly (600) includes a guide rail (601) fixedly mounted on the first sound insulation plate (201), a sliding seat (602) slidably connected to the guide rail (601), a fastening knob (603) threadedly connected to the sliding seat (602), a driven shaft (604) bearing connected to the sliding seat (602), and a second fastening nut (605) threadedly connected to the driven shaft (604).

6. The gear transmission noise testing device according to claim 1, characterized in that, Soundproof glass (702) is fixed on the lid (700).

7. The gear transmission noise testing device according to claim 1, characterized in that, The second sound insulation board (701) has the same thickness as the first sound insulation board (201), and both the second sound insulation board (701) and the first sound insulation board (201) are galvanized steel sheets.

Images