Motor vibration noise test tool
Through the combination of pneumatic clamping chuck and counterweight plate, the problem of inaccurate human judgment in existing motor vibration noise tests is solved, and more efficient and accurate test results are achieved.
Patent Information
- Application Number
- CN202422794931.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-16
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-11-16
AI Technical Summary
Existing motor vibration noise tests rely on human judgment, with low test accuracy and prone to errors.
The motor shaft is clamped by a pneumatic clamping chuck, and load is applied to the motor shaft by adding or decreasing counterweights, simulating actual usage scenarios, abnormal noises during test operation, and improving the accuracy of judgment of unqualified products.
It improves the accuracy and efficiency of motor vibration noise testing, reduces errors in human judgment, and ensures the accuracy of test results.
Smart Images
Figure CN223295527U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of mechanical technology, and in particular to a motor vibration and noise testing tool. Background Art
[0002] Motors are widely used in industrial production and daily life. Their smooth operation and low noise are crucial to improving equipment performance and user experience. Motor shaft imbalance can cause vibration and noise, affecting the motor's service life and working efficiency. Therefore, the counterweight silent test of the motor shaft is an important part of the motor production and maintenance process.
[0003] Existing tests mainly involve manual vibration testing followed by power-on testing in a silent room, all of which rely on manual judgment and detection. This method is simple to operate, but has low test accuracy and is dependent on the operator's experience, making it prone to errors. Utility Model Content
[0004] In response to the shortcomings of the existing technology, the present application provides a motor vibration and noise testing tool that can simulate actual usage scenarios, detect abnormal noises during testing, identify and screen unqualified products, increase the accuracy of unqualified product judgment, and improve testing efficiency. It solves the problem that existing manual testing judgments are not accurate enough and test results are prone to errors.
[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a motor vibration and noise testing tool, comprising a base plate, the upper surface of the base plate is fixedly connected to a base, a pneumatic clamping chuck is provided inside the base, the back of the pneumatic clamping chuck is fixedly connected to a rotating shaft, the outer circumferential surface of the rotating shaft is fixedly connected to a back plate, a mounting rod is fixedly inserted into the back plate, a counterweight plate is slidably sleeved on the outer circumferential surface of the mounting rod, a bracket is provided on the upper surface of the base plate, a through hole is opened inside the bracket, and a positioning structure is fixedly connected to the front of the bracket.
[0006] Through the above scheme, since the existing motor vibration and noise test operations are all based on manual judgment and detection, the manual test judgment is not accurate enough and the test results are prone to errors. The motor shaft is clamped by a pneumatic clamping chuck, so that when the motor shaft rotates, it can drive the rotating shaft, backplate, mounting rod and counterweight to rotate. The rated load is applied to the motor shaft by adding or removing the counterweight, simulating the actual use scenario, testing abnormal noises during operation, distinguishing and screening unqualified products, increasing the accuracy of unqualified product judgment, and improving test efficiency.
[0007] Furthermore, the through hole is located on the axis of the pneumatic clamping chuck.
[0008] The above solution ensures that the motor shaft being tested is precisely aligned with the clamping center of the pneumatic clamping chuck, thereby reducing vibration and noise interference caused by misalignment and improving test accuracy.
[0009] Furthermore, two pneumatic interfaces are provided on the top of the base, and the pneumatic interfaces are connected to the pneumatic clamping chuck.
[0010] With the above solution, an external pneumatic pipeline can be connected via a pneumatic interface to provide the required clamping and releasing power to the pneumatic clamping chuck.
[0011] Furthermore, a positioning ring is threadedly connected to the outer circumferential surface of the mounting rod.
[0012] Through the above solution, the positioning ring can position the weight plate, prevent the weight plate from shifting during rotation, and facilitate installation and removal of the weight plate.
[0013] Furthermore, a limiting groove is provided on the outer circumferential surface of the mounting rod, the inner wall of the counterweight plate is fixedly connected to a limiting block, and the outer surface of the limiting block is slidably connected to the mounting rod through the limiting groove.
[0014] Through the above solution, the weight plate is restricted to prevent the weight plate from rotating relative to the mounting rod, thereby further improving the stability of the weight plate during movement.
[0015] Furthermore, a power switch is provided on the upper surface of the base plate, and one end of the power switch is fixedly connected to a power line.
[0016] Through the above solution, the power line on the power switch can be connected to the motor under test to provide power for the motor under test, and the power supply of the motor under test can be controlled on and off by the power switch, which facilitates the testing operation.
[0017] Furthermore, a support plate is fixedly connected to the upper surface of the base plate, and the outer circumferential surface of the rotating shaft is rotatably connected to the inside of the support plate.
[0018] Through the above solution, the rotating shaft is supported, the stability of the rotating shaft during movement is increased, and the stability and accuracy of the test are improved.
[0019] Furthermore, the interior of the base plate is provided with mounting holes arranged at equal intervals.
[0020] With the above solution, the base plate can be fixed to the platform or other supporting structure through the mounting holes to ensure stability and accuracy during the test.
[0021] Compared with the existing technology, the technical solution of this application has the following beneficial effects:
[0022] This motor vibration and noise testing fixture clamps the motor shaft through a pneumatic clamping chuck, which enables the motor shaft to rotate and drive the rotating shaft, back plate, mounting rod and counterweight to rotate. The rated load is applied to the motor shaft by adding or removing the counterweight, simulating actual usage scenarios. The abnormal noise during the test operation is detected, and defective products are screened out, thereby increasing the accuracy of defective product judgment and improving test efficiency. This solves the problem of inaccurate manual judgment of motor vibration and noise tests. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is the overall three-dimensional structure diagram of this application;
[0024] Figure 2 This is the overall side view of the application;
[0025] Figure 3 This is the vertical assembly structure diagram for this application;
[0026] Figure 4 This is the overall front view structure diagram of this application.
[0027] In the picture:
[0028] 1. Bottom plate; 2. Base; 3. Pneumatic clamping chuck; 4. Rotating shaft; 5. Back plate; 6. Mounting rod; 7. Bracket; 8. Through hole; 9. Positioning structure; 10. Pneumatic interface; 11. Counterweight plate; 12. Positioning ring; 13. Limit groove; 14. Limit block; 15. Power switch; 16. Support plate; 17. Mounting hole. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0030] See also Figure 1 、 Figure 2 and Figure 3 In this embodiment, a motor vibration and noise testing tool includes a base plate 1, the upper surface of the base plate 1 is fixedly connected to a base 2, a pneumatic clamping chuck 3 is provided inside the base 2, the back of the pneumatic clamping chuck 3 is fixedly connected to a rotating shaft 4, the outer circumference of the rotating shaft 4 is fixedly connected to a back plate 5, the inside of the back plate 5 is fixedly plugged with a mounting rod 6, the outer circumference of the mounting rod 6 is slidably sleeved with a counterweight plate 11, the upper surface of the base plate 1 is provided with a bracket 7, the inside of the bracket 7 is provided with a through hole 8, and the front of the bracket 7 is fixedly connected to a positioning structure 9.
[0031] See also Figure 1and Figure 4 The through hole 8 is located on the axis of the pneumatic clamping chuck 3, ensuring that the motor shaft being tested is accurately aligned with the clamping center of the pneumatic clamping chuck 3, thereby reducing vibration and noise interference caused by misalignment and improving test accuracy.
[0032] See also Figure 1 Two pneumatic interfaces 10 are provided at the top of the base 2. The pneumatic interfaces 10 are connected to the pneumatic clamping chuck 3. The external pneumatic pipeline can be connected through the pneumatic interface 10 to provide the required clamping and releasing power to the pneumatic clamping chuck 3.
[0033] See also Figure 2 and Figure 3 The outer circumference of the mounting rod 6 is threadedly connected with a positioning ring 12, which can position the weight plate 11 to prevent the weight plate 11 from shifting during rotation, making it easier to install and remove the weight plate 11.
[0034] See also Figure 3 A limiting groove 13 is provided on the outer circumferential surface of the mounting rod 6, and a limiting block 14 is fixedly connected to the inner wall of the counterweight plate 11. The outer surface of the limiting block 14 is slidably connected to the mounting rod 6 through the limiting groove 13, thereby limiting the counterweight plate 11 and preventing the counterweight plate 11 from rotating relative to the mounting rod 6, thereby further improving the stability of the counterweight plate 11 during movement.
[0035] See also Figure 1 、 Figure 2 and Figure 4 A power switch 15 is provided on the upper surface of the base plate 1. One end of the power switch 15 is fixedly connected to a power cord. The power cord on the power switch 15 can be connected to the motor under test to provide power for the motor under test. The power switch 15 can also be used to control the on and off of the power supply of the motor under test, thereby facilitating the testing operation.
[0036] See also Figure 1 and Figure 2 The upper surface of the base plate 1 is fixedly connected to a support plate 16, and the outer circumferential surface of the rotating shaft 4 is rotatably connected to the inner portion of the support plate 16 to support the rotating shaft 4, thereby increasing the stability of the rotating shaft 4 during movement, thereby improving the stability and accuracy of the test.
[0037] See also Figure 1 The interior of the base plate 1 is provided with equidistantly arranged mounting holes 17, through which the base plate 1 can be fixed to the platform or other supporting structure to ensure stability and accuracy during the test.
[0038] A motor vibration and noise testing tool in this embodiment clamps the motor shaft through a pneumatic clamping chuck 3, so that when the motor shaft rotates, it can drive the rotating shaft 4, the back plate 5, the mounting rod 6 and the counterweight plate 11 to rotate. The rated load is applied to the motor shaft by adding or removing the counterweight plate 11, simulating the actual usage scenario, testing abnormal noises during operation, distinguishing and screening out unqualified products, increasing the accuracy of unqualified product judgment, improving testing efficiency, and solving the problem of inaccurate manual judgment of motor vibration and noise tests.
[0039] It should be noted that the outer circumferential surface of the positioning ring 12 is provided with anti-slip grooves arranged at equal intervals, so as to facilitate the rotational installation or removal of the positioning ring 12 .
[0040] The working principle of the above embodiment is:
[0041] Bolts can be used to fix the base plate 1 to the platform or other supporting structure through the mounting holes 17 to ensure stability and accuracy during the test. During the test, the pedal motor is installed on one side of the bracket 7, and the motor shaft of the motor passes through the through hole 8. The back of the motor is fixed using the positioning structure 9. After the motor shaft passes through the through hole 8, it is inserted into the clamping part of the pneumatic clamping chuck 3. The external pneumatic pipeline is connected through the pneumatic interface 10. The external equipment is started to drive the pneumatic clamping chuck 3 through the pneumatic pipeline and the pneumatic interface 10, so that the clamping part of the pneumatic clamping chuck 3 clamps the motor shaft to be tested. The power cord on the power switch 15 is connected to the motor to be tested to provide power for the motor to be tested. The counterweight plate 11 is installed on the mounting rod 6. The weight of the counterweight plate 11 can be increased or decreased according to the different motor models. The rated load is applied to the motor shaft by adding or removing the counterweight plate 11. After the counterweight plate 11 is installed on the mounting rod 6, the positioning ring 12 is installed on the mounting rod 6 and the positioning ring 12 is tightened. The counterweight plate 11 is positioned by the positioning ring 12. At the same time, the limit groove 13 and the limit block 14 can also limit the counterweight plate 11 to prevent the counterweight plate 11 and the mounting rod 6 from rotating relative to each other, further improving the stability of the counterweight plate 11 during the rotation test. After everything is ready, turn on the power switch 15 to start the motor to be tested, causing the motor shaft to be tested to rotate. The motor shaft drives the rotating shaft 4 to rotate through the pneumatic clamping chuck 3, and the rotating shaft 4 drives the mounting rod 6 to rotate through the back plate 5. The mounting rod 6 drives the counterweight plate 11 to rotate, simulating the actual usage scenario, testing abnormal noises during operation, and identifying and screening unqualified products.
[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.
[0043] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A motor vibration noise testing tool, comprising a base plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly connected to a base (2), a pneumatic clamping chuck (3) is provided inside the base (2), a rotating shaft (4) is fixedly connected to the back of the pneumatic clamping chuck (3), an outer circumferential surface of the rotating shaft (4) is fixedly connected to a back plate (5), a mounting rod (6) is fixedly inserted inside the back plate (5), a counterweight plate (11) is slidably sleeved on the outer circumferential surface of the mounting rod (6), a bracket (7) is provided on the upper surface of the bottom plate (1), a through hole (8) is provided inside the bracket (7), and a positioning structure (9) is fixedly connected to the front of the bracket (7).
2. The motor vibration noise testing tool according to claim 1, characterized in that: The through hole (8) is located on the axis of the pneumatic clamping chuck (3).
3. The motor vibration noise testing tool according to claim 1, characterized in that: Two pneumatic interfaces (10) are provided at the top end of the base (2), and the pneumatic interfaces (10) are in communication with the pneumatic clamping chuck (3).
4. The motor vibration and noise testing tool according to claim 1, characterized in that: The outer circumferential surface of the mounting rod (6) is threadedly connected with a positioning ring (12).
5. The motor vibration and noise testing tool according to claim 1, characterized in that: The outer circumferential surface of the mounting rod (6) is provided with a limiting groove (13), the inner wall of the counterweight plate (11) is fixedly connected to a limiting block (14), and the outer surface of the limiting block (14) is slidably connected to the mounting rod (6) via the limiting groove (13).
6. The motor vibration and noise testing tool according to claim 1, characterized in that: A power switch (15) is provided on the upper surface of the base plate (1), and one end of the power switch (15) is fixedly connected to a power line.
7. The motor vibration and noise testing tool according to claim 1, characterized in that: The upper surface of the bottom plate (1) is fixedly connected to a support plate (16), and the outer circumferential surface of the rotating shaft (4) is rotatably connected to the interior of the support plate (16).
8. The motor vibration and noise testing tool according to claim 1, characterized in that: The interior of the base plate (1) is provided with mounting holes (17) arranged at equal intervals.