Testing device for motor vibration decoupling

Abstract

The invention discloses a motor vibration decoupling testing device which comprises a base and a mounting plate, the mounting plate is arranged on the base and used for mounting a tested motor, the motor vibration decoupling testing device further comprises a testing mechanism, the testing mechanism is used for testing the tested motor on the mounting plate, and the testing mechanism comprises a testing motor, a belt transmission device and a connecting shaft. The output end of the testing motor is connected with the first end of the connecting shaft through the belt transmission device, the second end of the connecting shaft is connected with the acting end of the tested motor, and the testing motor drives the tested motor to rotate through transmission of the belt transmission device and the connecting shaft; the tested motor is driven by the servo motor to rotate to drive the rotor of the tested motor so as to measure the vibration value caused by the bearing of the motor to judge whether the bearing of the motor is damaged or not, the damage of the bearing can be judged through testing and data accumulation, the judgment accuracy is high, manual misjudgment is reduced, meanwhile, testing can be carried out in a non-mute room, and the testing efficiency is improved. The requirement of the test on the environment is reduced, and the detection cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of testing equipment, and in particular to a testing device for motor vibration decoupling. Background Art

[0002] The vibration noise problem of motors is a problem that the entire industry is very concerned about. The existing motor noise testing methods are all done manually, where the motor is driven and the noise is listened to by human ears to judge the sound of the motor. Manual testing is highly subjective and there are large errors in the test results. There are also tests using professional noise detection equipment, but in order to isolate the test results from external interference, the test needs to be carried out in a silent room, which has high testing costs. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the present application is to provide a test device for motor vibration decoupling, thereby effectively solving the above problems.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] The present application provides a test device for motor vibration decoupling, comprising:

[0006] Base,

[0007] A mounting plate is arranged on the base, and is used to mount the motor to be tested.

[0008] A testing mechanism, the testing mechanism is used to test the motor under test on the mounting plate, the testing mechanism comprises a testing motor, a belt transmission device and a connecting shaft, wherein:

[0009] The output end of the test motor is connected to the first end of the connecting shaft through the belt transmission device, and the second end of the connecting shaft is connected to the working end of the motor under test. The test motor is driven by the belt transmission device and the connecting shaft to drive the motor under test to rotate.

[0010] Furthermore, the mounting plate includes an L-shaped mounting plate, the L-shaped mounting plate includes a first mounting surface and a second mounting surface, the first mounting surface is fixedly disposed on the base, the second mounting surface is perpendicular to the first mounting surface, and the motor under test is mounted on the second mounting surface.

[0011] Furthermore, a first clamp is provided on the mounting plate, and the first clamp is used to clamp the motor under test on the second mounting surface.

[0012] Furthermore, it also includes a second clamp, which is arranged on the base and is used to clamp the motor under test on the second mounting surface.

[0013] Furthermore, the testing mechanism also includes a shaft bracket, which is fixedly arranged on the base, and the connecting shaft is rotatably mounted on the shaft bracket.

[0014] Furthermore, a first bearing is provided on a side of the shaft bracket close to the test motor, a second bearing is provided on a side of the shaft bracket close to the test motor, and both sides of the connecting shaft are respectively mounted on the shaft bracket through the first bearing and the second bearing.

[0015] Furthermore, the first bearing and the second bearing are sliding bearings respectively.

[0016] Furthermore, a flexible coupling is provided at a connection position between the working end of the motor under test and the second end of the connecting shaft.

[0017] Furthermore, the test motor is fixedly mounted on the base via a mounting seat, and a shock-absorbing pad is provided at the bottom of the mounting seat.

[0018] Beneficial Effects

[0019] The present application provides a motor vibration decoupling test device, in which the motor under test is driven to rotate by a servo motor, driving the rotor of the motor under test to measure the vibration value caused by the motor bearing to determine whether the motor bearing is damaged. The damage of the bearing can be determined through testing and data accumulation, and the determination is highly accurate, reducing human misjudgment. At the same time, the test can be carried out in a non-silent room, reducing the environmental requirements of the test and reducing the detection cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide an understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation on the technical solution of the present disclosure. The shapes and sizes of the components in the accompanying drawings do not reflect the actual proportions and are only intended to illustrate the content of the present application.

[0021] Figure 1 This is a schematic diagram of the overall structure of a testing device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0022] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted as the conditions of the specific manufacturer, and the unspecified implementation conditions are usually the conditions in conventional experiments.

[0023] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connecting" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. In this article, "electrical connection" includes the situation where the constituent elements are connected together through an element with some electrical function. "Elements with some electrical function" are not particularly limited as long as they can transfer electrical signals between the connected constituent elements. "Elements with some electrical function" can be, for example, electrodes or wiring, or switching elements such as transistors, or other functional elements such as resistors, inductors or capacitors. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0024] In this application, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "middle", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0025] As described in the background technology, the vibration noise problem of the motor is a problem that the entire industry is very concerned about. The existing motor noise testing methods are all performed manually, where the motor is driven and the noise is listened to by human ears to judge the sound of the motor. Manual testing is highly subjective and there are large errors in the test results. There are also methods for testing using professional noise detection equipment. At the same time, in order to isolate the test results from external interference, the test needs to be carried out in a silent room, which has high testing costs.

[0026] In view of the above content, the inventor provides a test device for motor vibration decoupling, which test device includes a base, a mounting plate, the mounting plate is arranged on the base, the mounting plate is used to install the motor under test, and a test mechanism, the test mechanism is used to test the motor under test on the mounting plate, the test mechanism includes a test motor, a belt transmission device and a connecting shaft, wherein the output end of the test motor is connected to the first end of the connecting shaft through the belt transmission device, the second end of the connecting shaft is connected to the working end of the motor under test, and the test motor is driven by the belt transmission device and the connecting shaft to drive the motor under test to rotate.

[0027] In the present application, the motor under test is driven to rotate by a servo motor, which drives the rotor of the motor under test, thereby measuring the vibration value caused by the motor bearing to determine whether the motor bearing is damaged. The damage of the bearing can be determined through testing and data accumulation, and the determination is highly accurate, which reduces human misjudgment. At the same time, the test can be carried out in a non-silent room, which reduces the requirements for the test environment and reduces the detection cost.

[0028] Next, combine Figure 1 The present application is described exemplarily.

[0029] An embodiment of the present application provides a test device for motor vibration decoupling, such as Figure 1 As shown, the test device includes:

[0030] Base 1, base 1 is the base of the test device, base 1 is an integral rigid structure,

[0031] The mounting plate 2 is fixedly mounted on the base 1, and the mounting plate 2 includes an L-shaped mounting plate, wherein the first mounting surface (bottom surface) of the mounting plate 2 is in contact with the surface of the base 1, and the two are fixedly mounted, and the second mounting surface (side surface) of the mounting plate 2 is perpendicular to the first mounting surface, and the motor 100 under test is mounted on the second mounting surface, and a first clamp 3 is arranged on the second mounting surface, and the first clamp 3 includes a quick clamp, which can quickly clamp the motor 100 under test after the motor 100 under test is mounted on the second mounting surface. At the same time, a second clamp 4 is also arranged on the base 1 near the mounting plate 2. The second clamp 4 includes an auxiliary clamp, and the auxiliary clamp includes a clamping head, which is used to clamp the motor 100 under test from the back side by cooperating with the mounting plate 2 through the clamping head, so as to ensure the positioning effect of the motor 100 under test on the mounting plate 2, and avoid the motor 100 under test from falling off the mounting plate 2 during the test process;

[0032] The testing mechanism includes a testing motor 5, a belt transmission device 6, and a connecting shaft 7, wherein:

[0033] The output end of the test motor 5 is connected to the first end 7a of the connecting shaft 7 through the belt transmission device 6, and the second end 7b of the connecting shaft 7 is connected to the working end of the motor under test. At the same time, a shaft bracket 8 is arranged on the base 1, and the shaft bracket 8 is used to install the connecting shaft 7. A first bearing 9 is arranged on the side of the shaft bracket 8 close to the test motor 100, and a second bearing 10 is arranged on the side of the shaft bracket 8 close to the test motor 5. The two sides of the connecting shaft 7 are respectively installed on the shaft bracket 8 through the first bearing 9 and the second bearing 10. At the same time, the first bearing 9 and the second bearing 10 are sliding bearings respectively, so as to ensure that the frequency of the connecting shaft 7 during the rotation process is the fundamental frequency of the rotation speed, thereby ensuring that the test can effectively obtain the bearing vibration value of the motor under test.

[0034] When the test device is in use, the motor 100 to be tested is first installed on the mounting plate 2, and then the motor 100 to be tested is quickly clamped by the first clamp 3. At the same time, the motor 100 to be tested is auxiliary clamped by the second clamp 4, so as to ensure the positioning effect of the motor 100 to be tested on the mounting plate 2, and then the test motor 5 is started. The test motor 5 drives the connecting shaft to rotate through the belt transmission, and the connecting shaft drives the motor 100 to rotate. The test motor 5 is a servo motor. The servo motor drags the motor to be tested to rotate, and drags the rotor of the motor to be tested to rotate, so as to measure the vibration value caused by the motor bearing to determine whether the motor bearing is damaged. The damage of the bearing can be determined through long-term testing and data accumulation, and the determination accuracy value reaches more than 99%.

[0035] In some embodiments, a flexible coupling 11 is provided at the connection between the working end of the motor 100 under test and the second end 7b of the connecting shaft 7. The coupling device can effectively ensure the coaxial error between the motor's own shaft and the motor test shaft, thereby ensuring the test accuracy.

[0036] In some embodiments, the test motor 5 is fixedly mounted on the base 1 through a mounting base, and a shock-absorbing pad is provided at the bottom of the mounting base. The shock-absorbing pad can effectively shield the vibration generated when the test motor is working from being transmitted to the connecting shaft and the motor under test, thereby improving the accuracy of detection.

[0037] The above embodiments are only for illustrating the technical concept and features of the present application, and their purpose is to enable people familiar with the technology to understand the content of the present application and implement it accordingly, and they cannot be used to limit the protection scope of the present application. Any equivalent transformation or modification made according to the spirit of the present application shall be included in the protection scope of the present application.

Claims

1. A test device for motor vibration decoupling, characterized in that: include: Base, A mounting plate is arranged on the base, and is used to mount the motor to be tested. A testing mechanism, the testing mechanism is used to test the motor under test on the mounting plate, the testing mechanism comprises a testing motor, a belt transmission device and a connecting shaft, wherein: The output end of the test motor is connected to the first end of the connecting shaft through the belt transmission device, and the second end of the connecting shaft is connected to the working end of the motor under test. The test motor is driven by the belt transmission device and the connecting shaft to drive the motor under test to rotate.

2. The motor vibration decoupling test device according to claim 1, characterized in that: The mounting plate comprises an L-shaped mounting plate, the L-shaped mounting plate comprises a first mounting surface and a second mounting surface, the first mounting surface is fixedly arranged on the base, the second mounting surface is perpendicular to the first mounting surface, and the motor under test is mounted on the second mounting surface.

3. The motor vibration decoupling test device according to claim 2, characterized in that: The mounting plate is provided with a first clamp, and the first clamp is used to clamp the motor under test on the second mounting surface.

4. The motor vibration decoupling test device according to claim 2, characterized in that: It also includes a second clamp, which is arranged on the base and is used to clamp the motor under test on the second mounting surface.

5. The motor vibration decoupling test device according to claim 1, characterized in that: The testing mechanism further comprises a shaft support, wherein the shaft support is fixedly arranged on the base, and the connecting shaft is rotatably mounted on the shaft support.

6. The motor vibration decoupling test device according to claim 5, characterized in that: A first bearing is arranged on a side of the shaft support close to the test motor, a second bearing is arranged on a side of the shaft support close to the test motor, and both sides of the connecting shaft are respectively mounted on the shaft support through the first bearing and the second bearing.

7. The motor vibration decoupling test device according to claim 6, characterized in that: The first bearing and the second bearing are respectively sliding bearings.

8. The motor vibration decoupling test device according to claim 1, characterized in that: A flexible coupling is provided at the connection position between the action end of the motor to be measured and the second end of the connecting shaft.

9. The motor vibration decoupling test device according to claim 1, characterized in that: The test motor is fixedly mounted on the base through a mounting seat, and a shock-absorbing pad is arranged at the bottom of the mounting seat.

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