Motor carbon brush measurement experiment platform

Abstract

The utility model relates to a motor carbon brush measurement experiment platform, which belongs to the technical field of motor carbon brush quantity detection and comprises a soundproof box, a rotating speed sensor, a rotary connector and a laser displacement meter. The laser displacement meter measures the internal carbon brush of the motor body through the through hole and synchronously measures the voltage change in the operation process of the carbon brush through the rotary connector, and after the above structure is adopted, the testing device has the following advantages: the testing device can simulate different load conditions, so that the motor operates at different rotating speeds and torques, and the stability of the motor is improved. Sensors such as a laser displacement meter, an accelerometer, a torsion sensor and a microphone are arranged to measure brush displacement, motor shell acceleration and conduction voltage, motor vibration and noise characteristics can be monitored in real time to obtain more comprehensive performance information, a rotary connector is arranged, brush voltage signals can be transmitted back, and the performance information of the motor is improved. Therefore, the conduction voltage of the electric brush under different motor conditions can be verified.

Description

Technical Field

[0001] The utility model relates to the technical field of motor carbon brush quantity detection, in particular to a motor carbon brush measurement experimental platform. Background Art

[0002] Currently, the technology for measuring carbon brushes in brushed motors mainly relies on laboratory environments, which usually requires a lot of time and resources to test the performance of the brushes. Traditional methods may not provide enough flexibility to conduct comprehensive tests under different load conditions.

[0003] The disadvantages of the prior art include: it is difficult to simulate different load conditions in an actual operating environment, it is difficult to monitor the brush displacement and motor vibration and noise characteristics in real time, and it is not easy to measure the conduction voltage of the brush. Utility Model Content

[0004] The utility model aims to solve the above technical problems and provides a motor carbon brush measurement experimental platform.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0006] A motor carbon brush measurement experimental platform comprises a soundproof box, a motor body, a torque sensor, a hysteresis brake, a speed sensor, a rotary connector and a laser displacement meter. An adjustable base is installed in the soundproof box, a plurality of fixing plates are installed on the base, the torque sensor, the hysteresis brake and the motor body are respectively installed on the fixing plates, the rotor of the motor body is fixedly connected to the torque sensor, the speed sensor and the rotary connector, the hysteresis brake is located on the outer side of the motor body rotor for decelerating the rotor, a through hole is provided on the outer side of the motor body, the laser displacement meter measures the internal carbon brush of the motor body through the through hole and synchronously measures the voltage change of the carbon brush during operation through the rotary connector.

[0007] Preferably, a carbon brush pressure regulator is installed on the motor body.

[0008] Preferably, an accelerometer and a microphone are also provided on the outside of the motor body for intercepting the vibration noise spectrum of the motor body.

[0009] Preferably, the soundproof box also includes a signal interceptor, a controller and a power supply which are electrically connected in sequence.

[0010] Preferably, the torque sensor, hysteresis brake, speed sensor, rotary connector, laser displacement meter, accelerometer and microphone are respectively connected to the signal interceptor.

[0011] Preferably, the fixing plate and the base are fixedly connected by bolts.

[0012] Preferably, a fixing edge is installed at the bottom of the sound insulation box, and the fixing edge and the base are fixedly connected by bolts.

[0013] Preferably, the model of the torque sensor is HCHJ-101, and the model of the signal interceptor is NI-9234.

[0014] After adopting the above structure, the utility model has the following advantages:

[0015] The utility model can simulate different load conditions and make the motor run at different speeds and torques. It has sensors such as laser displacement meter, accelerometer, torque sensor and microphone to measure brush displacement, motor housing acceleration and conduction voltage. It can monitor the vibration and noise characteristics of the motor in real time to obtain more comprehensive performance information. It has a rotating connector to transmit the brush voltage signal back to verify the conduction voltage of the brush under different motor conditions.

[0016] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal equipment connection of the utility model;

[0020] Figure 3 It is a circuit connection schematic diagram of the utility model;

[0021] Figure 4 is a sound pressure curve diagram of the embodiment of the utility model at time 0-0.5;

[0022] Figure 5 It is a graph of the motor axial acceleration at time 0-0.5 of the embodiment of the utility model;

[0023] Figure 6 is a first carbon brush displacement curve diagram at time 0-0.5 of an embodiment of the utility model;

[0024] Figure 7 is a second carbon brush displacement curve diagram of the embodiment of the utility model at time 0-0.5;

[0025] Figure 8 It is a sound pressure curve diagram of the embodiment of the utility model at a frequency of 0-1500 HZ;

[0026] Fig. 9 It is a graph of the motor axial acceleration at a frequency of 0-1500 HZ according to an embodiment of the utility model;

[0027] Fig.10 This is a first carbon brush displacement curve diagram of the embodiment of the utility model at a frequency of 0-1500 HZ;

[0028] Fig.11 This is a displacement curve diagram of the second carbon brush of the embodiment of the utility model at a frequency of 0-1500 HZ;

[0029] Fig.12 It is a performance curve diagram of the motor of the present utility model.

[0030] As shown in the figure: 1. Motor body; 2. Torque sensor; 3. Hysteresis brake; 4. Speed ​​sensor; 5. Fixed plate; 6. Rotary connector; 7. Base; 8. Accelerometer; 9. Laser displacement meter; 10. Microphone; 11. Carbon brush pressure regulator; 12. Sound insulation box; 13. Signal interceptor; 14. Controller; 15. Power supply. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] The utility model is further described in detail below in conjunction with the full text.

[0034] Combined with Figure 1-Figure 12As shown, a motor carbon brush measurement experimental platform includes a soundproof box 12, a motor body 1, a torque sensor 2, a hysteresis brake 3, a speed sensor 4, a rotary connector 6 and a laser displacement meter 9. An adjustable base 7 is installed in the soundproof box 12, and a plurality of fixing plates 5 are installed on the base 7. The torque sensor 2, the hysteresis brake 3 and the motor body 1 are respectively installed on the fixing plates 5. The rotor of the motor body 1 is fixedly connected to the torque sensor 2, the speed sensor 4 and the rotary connector 6. The hysteresis brake 3 is located on the outer side of the rotor of the motor body 1 for decelerating the rotor. A through hole is opened on the outer side of the motor body 1. The laser displacement meter 9 measures the internal carbon brush of the motor body 1 through the through hole and synchronously measures the voltage change of the carbon brush during the operation process through the rotary connector 6.

[0035] A carbon brush pressure regulator 11 is installed on the motor body 1. When the utility model is implemented, the motor body 1 is the prior art, and the motor body 1 includes a rotor, a stator, a carbon brush and a carbon brush holder.

[0036] An accelerometer 8 and a microphone 10 are also provided on the outside of the motor body 1 for intercepting the vibration noise spectrum of the motor body 1 .

[0037] The soundproof box 12 also includes a signal interceptor 13, a controller 14 and a power supply 15 which are electrically connected in sequence.

[0038] The torque sensor 2 , the hysteresis brake 3 , the rotation speed sensor 4 , the rotary connector 6 , the laser displacement meter 9 , the accelerometer 8 and the microphone 10 are respectively connected to the signal interceptor 13 .

[0039] The fixing plate 5 and the base 7 are fixedly connected by bolts.

[0040] When the utility model is implemented, Figure 1 As shown, a fixed edge is installed at the bottom of the sound insulation box 12, and the fixed edge and the base 7 are fixedly connected by bolts. The sound insulation box 12 includes 11 long aluminum rectangular bars, 4 short aluminum rectangular bars, and sound insulation boards in 6 directions. The sound insulation box 12 covers the entire platform.

[0041] When the utility model is implemented specifically, specifically, the model of the torque sensor 2 is HCHJ-101, the model of the signal interceptor 13 is NI-9234, the model of the hysteresis brake 3 is EHB-103, the model of the rotary connector 6 is MercotacM230C, the model of the laser displacement meter 9 is Polytec OFV-534, the model of the accelerometer 8 is BK-4520, the model of the microphone 10 is BK-4966-H-041, and the model of the power supply 15 is GWINSTEKSPD-3606. The models of the torque sensor 2, the signal interceptor 13, the hysteresis brake 3, the rotary connector 6, the laser displacement meter 9, the accelerometer 8, the microphone 10 and the power supply 15 can be selected as products having the same effects as the above models.

[0042] The laser displacement meter 9 can measure the vibration characteristics generated by the load changes during the operation of the brush; the accelerometer 8 can measure the vibration characteristics of the motor housing; the microphone 10 can measure the noise performance under different loads; the hysteresis brake 3 can provide different load conditions for the motor; the rotary connector 6 can measure the brush contact voltage drop signal; the torque sensor 2 can measure the motor output torque. The traditional motor performance test only observes performance indicators such as voltage, current, speed and torque, and cannot effectively measure vibration noise and brush transient characteristics. Therefore, the utility model combines a variety of sensors and connectors to establish a measurement platform with monitoring functions.

[0043] The utility model is capable of conducting comprehensive experiments under different load conditions, including measuring brush displacement, motor housing acceleration and conduction voltage. In addition, it has real-time monitoring capabilities to obtain important information about the vibration and noise characteristics of the motor.

[0044] This platform allows users to conduct comprehensive tests on the performance of brushed motors under different experimental conditions, including vibration, noise, displacement, and brush conduction voltage. In addition, it provides real-time monitoring capabilities to understand the operating characteristics of the motor and can be applied to motor performance analysis and improvement.

[0045] The working principle of this utility model:

[0046] Before testing, record the following information:

[0047] 1. Ambient temperature;

[0048] 2. Ambient humidity;

[0049] 3. Environmental noise;

[0050] 4. Motor model / specifications.

[0051] 2. Pre-test: Perform a 5-minute test under no-load conditions to ensure that the mechanism has no obvious vibration or abnormal sound during operation, observe whether the hysteresis brake 3, rotary connector 6, and motor body 1 have excessive temperatures, and confirm whether data collection is abnormal.

[0052] 3. Formal testing: carried out in accordance with experimental requirements and plans.

[0053] 4. Data verification: Determine the accuracy of experimental values.

[0054] Motor test:

[0055] The motor is tested. The laser displacement meter 9 can measure the vibration characteristics of the brush during operation as the load changes. The accelerometer 8 can measure the vibration characteristics of the motor housing. The microphone 10 can measure the noise performance under different loads. The accelerometer 8 and the microphone 10 are used to intercept the vibration noise spectrum of the motor body 1. The hysteresis brake 3 can provide different load conditions for the motor. The rotary connector 6 can measure the brush contact voltage drop signal. The torque sensor 2 can measure the motor output torque and obtain the motor test data, such as Figures 4 to 11 As shown, the graphs of the carbon brush displacement m, carbon brush displacement m / s, motor axial acceleration g and sound pressure Pa of the motor body 1 at time 0-0.5 and the graphs of the carbon brush displacement m, carbon brush displacement m / s, motor axial acceleration g and sound pressure Pa of the motor body 1 at frequency 0-1500 HZ are obtained, and the performance curve of the motor is obtained.

[0056] The above describes the utility model and its implementation methods, which is not restrictive. What is shown in the full text is only one of the implementation methods of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A motor carbon brush measurement experimental platform, characterized in that: The invention comprises a soundproof box (12), a motor body (1), a torque sensor (2), a hysteresis brake (3), a speed sensor (4), a rotary connector (6) and a laser displacement meter (9). An adjustable base (7) is installed in the soundproof box (12). A plurality of fixing plates (5) are installed on the base (7). The torque sensor (2), the hysteresis brake (3) and the motor body (1) are respectively installed on the fixing plates (5). The rotor of the motor body (1) is fixedly connected to the torque sensor (2), the speed sensor (4) and the rotary connector (6). The hysteresis brake (3) is located on the outer side of the rotor of the motor body (1) for decelerating the rotor. A through hole is provided on the outer side of the motor body (1). The laser displacement meter (9) measures the internal carbon brush of the motor body (1) through the through hole and synchronously measures the voltage change of the carbon brush during operation through the rotary connector (6).

2. The motor carbon brush measurement experimental platform according to claim 1 is characterized in that: A carbon brush pressure regulator (11) is installed on the motor body (1).

3. The motor carbon brush measurement experimental platform according to claim 1 is characterized in that: An accelerometer (8) and a microphone (10) are also provided on the outside of the motor body (1) for intercepting the vibration noise spectrum of the motor body (1).

4. The motor carbon brush measurement experimental platform according to claim 3 is characterized in that: The soundproof box (12) also includes a signal interceptor (13), a controller (14) and a power supply (15) which are electrically connected in sequence.

5. The motor carbon brush measurement experimental platform according to claim 4 is characterized in that: The torque sensor (2), hysteresis brake (3), rotation speed sensor (4), rotary connector (6), laser displacement meter (9), accelerometer (8) and microphone (10) are respectively connected to the signal interceptor (13).

6. The motor carbon brush measurement experimental platform according to claim 1 is characterized in that: The fixing plate (5) and the base (7) are fixedly connected by bolts.

7. The motor carbon brush measurement experimental platform according to claim 1 is characterized in that: A fixing edge is installed at the bottom of the sound insulation box (12), and the fixing edge and the base (7) are fixedly connected by bolts.

8. The motor carbon brush measurement experimental platform according to claim 5 is characterized in that: The model of the torque sensor (2) is HCHJ-101, and the model of the signal interceptor (13) is NI-9234.

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