Motor module parameter adjustment and performance testing platform

Abstract

This utility model discloses a motor module parameter adjustment and performance testing platform, including a base, with support base one, support base two, and support base three detachably connected to the top of the base; a dynamic torque sensor is fixedly connected to support base two, and the side of the dynamic torque sensor near the support plate is connected to the output shaft of the motor under test via a coupling; a dynamic load module is fixedly connected to support base three, and the other end of the dynamic torque sensor is also connected to the dynamic load module via a coupling; a control box is equipped with a control system, which includes a data acquisition and processing module, and the data acquisition and processing module is connected to a battery block via wires; the dynamic torque sensor collects motor operating data in real time, and combined with the parameter adjustment function of the control box, it can calibrate the output differences of motors in the same batch.

Description

Technical Field

[0001] This utility model relates to the field of motor performance testing technology, and in particular to motor module parameter adjustment and performance testing platform. Background Technology

[0002] In the field of high-precision motor control, due to individual hardware differences such as motor manufacturing tolerances and assembly errors, motor modules in the same batch often exhibit inconsistent outputs under the same control commands, leading to a decline in overall equipment performance. Traditional calibration methods rely on manual adjustments, which suffer from drawbacks such as low efficiency, poor accuracy, and difficulty in adapting to dynamic load scenarios.

[0003] While existing technologies have proposed dynamic calibration algorithms based on "theoretical parameters - actual output - correction value," a matching hardware implementation platform is lacking. In mass production scenarios, single-channel testing equipment cannot meet the requirements for efficient calibration. Therefore, this application proposes an integrated hardware platform to achieve automated, high-precision, and batch calibration of motor modules. Utility Model Content

[0004] This application provides a motor module parameter adjustment and performance testing platform. By using a dynamic torque sensor (integrating a Hall speed sensor, torque sensor, etc.) to collect motor operating data (speed, torque, current, etc.) in real time, and combining the parameter adjustment function of the control box (a digital voltmeter with an adjustable transformer to achieve precise voltage and current adjustment), it is possible to calibrate the output differences of motors in the same batch.

[0005] This application provides a platform for adjusting motor module parameters and testing performance, characterized in that it includes:

[0006] The base has three detachable support seats on its top. Support seat one, support seat two, and support seat three are fixedly connected to the top of support seat one. The side of the support plate away from support seat two is used for mounting the motor to be tested. A through hole is opened on the support plate for the output shaft of the motor to be tested to pass through.

[0007] The dynamic torque sensor is fixedly connected to the support base two. The side of the dynamic torque sensor closest to the support plate is connected to the output shaft of the motor to be tested through a coupling.

[0008] The dynamic load module is fixedly connected to the support base three, and the other end of the dynamic torque sensor is also connected to the dynamic load module through a coupling.

[0009] The control box contains a control system, which includes a data acquisition and processing module. The data acquisition and processing module is connected to a battery pack via wires.

[0010] The control box is further equipped with a door on the front, and a display terminal and multiple digital voltmeters are installed outside the door. The display terminal and digital voltmeters are connected to the data acquisition and processing module through wires. A transformer is also installed between the digital voltmeters and the data acquisition and processing module.

[0011] The control box has reserved interfaces and output ports on one side. The number of output ports is the same as that of the digital voltmeter, and the output ports are numbered sequentially to correspond to one digital voltmeter.

[0012] The output port is further divided into positive and negative ports for connecting the positive and negative terminals of the motor to be tested.

[0013] The further dynamic torque sensor integrates a Hall speed sensor, torque sensor, and current sensor into one unit, which can collect motor operation data in real time. The connection cable of the dynamic torque sensor is plugged into the interface on the control box.

[0014] The further dynamic load module employs a magnetic powder brake.

[0015] A clamping assembly is provided on one side of the support plate where the motor to be tested is installed. The clamping assembly includes two fixed plates, which are fixedly connected to the front and rear sides of the support plate away from the second support base. Two adjusting rods are rotatably connected between the two fixed plates. The front side of the adjusting rod passes through the front fixed plate and extends to its outer side. A knob is fixedly connected to one end of the adjusting rod. Two clamping plates are mounted on the two adjusting rods. Rubber pads are glued to the opposite sides of the two clamping plates. Slider blocks are fixedly connected to the upper and lower sides of the clamping plates, and the sliders are fitted onto the adjusting rods.

[0016] Further, a two-way lead screw is selected for the adjusting rod, and a threaded through hole is opened on the slider. The adjusting rod is rotatably connected to the slider through the thread.

[0017] One or more technical solutions provided in this application embodiment have at least the following technical effects or advantages: Real-time acquisition of motor operating data (speed, torque, current, etc.) by a dynamic torque sensor (integrated Hall speed sensor, torque sensor, etc.), combined with the parameter adjustment function of the control box (digital voltmeter with adjustable transformer to achieve precise voltage and current adjustment), can be used to calibrate the output differences of motors in the same batch; at the same time, the control box is designed with multiple output ports, each port corresponding to an independent transformer and adjustment unit, which can connect multiple motor modules at the same time for parallel testing and calibration, greatly improving the calibration efficiency in mass production scenarios and meeting the high-efficiency requirements of industrial mass production. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the motor module parameter adjustment and performance testing platform of this application;

[0019] Figure 2 This is the main view of the motor module parameter adjustment and performance testing platform of this application;

[0020] Figure 3 This is a schematic diagram of the installation of the motor to be tested in this application;

[0021] Figure 4 This is an enlarged structural diagram of Part A of this application.

[0022] In the diagram: 10 Base, 11 Support base one, 12 Support plate, 13 Support base two, 14 Support base three, 20 Motor to be tested, 30 Coupling, 40 Dynamic torque sensor, 50 Dynamic load module, 60 Control box, 61 Display terminal, 62 Digital voltmeter, 63 Plug interface, 64 Output port, 70 Fixing plate, 71 Adjusting rod, 72 Knob, 73 Clamping plate, 74 Slider. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Example 1

[0027] Please see Figure 1-2 A platform for adjusting motor module parameters and testing performance, including a base 10 and a control box 60;

[0028] Specifically, the top of the base 10 is detachably connected to support base 11, support base 23, and support base 34 from left to right via bolts. Support base 11 is fixedly connected to the top of support plate 12. The side of support plate 12 away from support base 23 is used for mounting the motor 20 to be tested. Through holes are opened on the support plate for the output shaft of the motor 20 to pass through. Support base 23 is fixedly connected to the top of dynamic torque sensor 40. The side of dynamic torque sensor 40 near support plate 12 is connected to the output shaft of the motor 20 to be tested via coupling 30. Support base 34 is fixedly connected to the top of dynamic load module 50. The other end of dynamic torque sensor 40 is also connected to dynamic load module 50 via coupling 30 (a flexible coupling can be used, which is made of polyurethane material to compensate for radial and angular deviations and avoid sensor damage caused by hard connection). (After the motor 20 to be tested is installed, the output shaft is coaxial with the shaft of dynamic torque sensor 40.)

[0029] The dynamic torque sensor 40 integrates a Hall effect speed sensor, torque sensor, and current sensor to acquire motor operating data in real time. (The dynamic torque sensor 40 can be the SGDN-50 type dynamic torque sensor produced by Henggang Instrument Co., Ltd. The dynamic torque sensor 40 mainly consists of strain gauges, a shaft, a signal conditioning circuit, a transmission module, and a power supply module. The strain gauges are typically high-temperature epoxy resin-based strain gauges, symmetrically bonded at 45° to the shaft to form a full-bridge circuit. This circuit is sensitive to shear strain and can counteract axial / bending strain interference. When the shaft is subjected to torque and deforms, the resistance value of the strain gauge changes proportionally. As a torque-bearing component, the shaft needs to have high strength and rigidity; its minute deformation causes a change in the resistance of the strain gauge.)

[0030] The dynamic load module 50 employs a magnetic powder brake (a magnetic powder brake with a rated torque of 50 N·m can be used). The output shaft of the magnetic powder brake is connected to the end of the dynamic torque sensor 40 furthest from the motor 20 under test via a coupling (the output shaft of the magnetic powder brake and the shaft of the dynamic torque sensor 40 are coaxial). When current is applied to the excitation coil of the magnetic powder brake, a magnetic field is generated, magnetizing the internal magnetic powder. The magnetized magnetic powder attracts and aggregates under the action of the magnetic field force, forming magnetic powder chains. These magnetic powder chains adhere tightly between the input rotor and the output stator of the brake, transmitting torque through the friction between the magnetic powder and the surfaces of the rotor and stator, thereby creating braking resistance on the connected dynamic torque sensor and the motor under test. By adjusting the current in the excitation coil, the magnetic field strength can be changed, thereby controlling the degree of magnetization of the magnetic powder and the tightness of the magnetic powder chains. The greater the current, the stronger the magnetic field, the greater the bonding force between the magnetic particles, and the greater the braking torque generated. Conversely, the smaller the current, the smaller the braking torque, which enables the magnetic particle brake to smoothly adjust the braking load, thereby simulating the operating state of the motor under test under different load conditions, and completing the motor performance test in conjunction with the dynamic torque sensor.

[0031] The control box 60 (the box body is made of 2mm cold-rolled steel plate, and the internal layout is divided into three independent compartments: power supply area, acquisition area and control area) is equipped with a control system, which can be used to receive data from the dynamic torque sensor 40, and to display real-time performance test data such as speed and torque of the motor under test 20; it can also be used to adjust the current and voltage of the motor under test 20, so as to realize the parameter adjustment of the motor under test 20.

[0032] The control system includes a data acquisition and processing module, which uses a Xilinx Spartan-6 series FPGA and a 16-bit ADC chip (AD7606) to achieve synchronous acquisition of 8 channels (sampling rate 20kHz), ensuring the time consistency of multi-parameter measurements. The preprocessing algorithms include 50Hz power frequency notch filtering (to suppress power grid interference) and moving average filtering (to smooth high-frequency noise). The data acquisition and processing module is connected to the battery pack via wires. The battery pack is fixedly placed inside the control box and is a 12V / 5Ah lithium battery pack.

[0033] The control box 60 has a door on the front, and a display terminal 61 (a 4.5-inch LED display screen that displays performance parameters such as torque and speed in real time) and multiple digital voltmeters 62 (digital voltage regulators can be used to intuitively read the real-time power supply voltage of the motor and adjust its voltage and current) are installed outside the door. The display terminal 61 and the digital voltmeters 62 are connected to the data acquisition and processing module through wires. A transformer (a 220V to 0-30V adjustable transformer with a power of 500W can be used to independently adjust the power supply voltage of the motor) is also installed between the digital voltmeters 62 and the data acquisition and processing module for adjusting the voltage and current of the output port (each digital voltmeter 62 corresponds to an independent transformer with the data acquisition and processing module, which can independently adjust the output parameters of the output port 64).

[0034] One side of the control box 60 has a reserved interface 63 (or a banana plug) for connecting the dynamic torque sensor 40. The data monitored in real time by the dynamic torque sensor 40 is transmitted to the data acquisition and processing module, and the torque, speed and other data are displayed on the display terminal 61. The control box 60 also has a reserved output port 64 (or a banana plug) on ​​the side of the reserved interface 63. The number of output ports 64 is the same as that of the digital voltmeters 62. The output ports 64 are numbered sequentially to correspond to one digital voltmeter 62.

[0035] Output port 64 is divided into positive and negative ports for connecting the positive and negative terminals of the motor 20 to be tested.

[0036] In actual operation of this embodiment, the motor 20 to be tested is fixed to the support plate 12 with bolts, ensuring that the motor output shaft passes through the through hole on the support plate 12 and that the output shaft axis is coaxial with the axis of the subsequent components; the end of the dynamic torque sensor 40 near the motor is connected to the output shaft of the motor 20 to be tested through a coupling 30.

[0037] Insert the connecting wire of the dynamic torque sensor 40 into the plug interface 63 on one side of the control box 60 to realize the signal transmission between the sensor and the data acquisition and processing module inside the control box 60; connect the positive and negative terminals of the motor 20 to be tested to the output port 64 of the control box 60 respectively. The output port 64 corresponds one-to-one with the digital voltmeter 62 (number matching) to ensure that the motor power supply circuit is connected.

[0038] When the motor under test 20 is started, the motor output shaft drives the dynamic torque sensor 40 and the magnetic powder brake to run. The dynamic torque sensor 40 collects data such as the motor speed and torque in real time. After being processed by the signal conditioning circuit, the data is transmitted to the data acquisition and processing module of the control box 60. The torque, speed and other performance parameters processed by the data acquisition and processing module are displayed in real time on the display terminal 61 of the control box 60, which is convenient for the tester to observe and record. (During this process, the voltage and current of the output port 64 are independently adjusted by the digital voltmeter 62 in conjunction with the transformer to set the target operating voltage and current parameters of the motor under test 20, such as adjusting according to the motor rating or test requirements. The current value is read in real time by the voltmeter during the adjustment process.)

[0039] Example 2

[0040] Please see Figure 3-4 Since the motor 20 under test is fixed to the support plate 12 by bolts, the support plate 12 will have a threaded through hole 13 for fixing the base of the motor 20 under test. However, some motors have different specifications and sizes (the base size is different, but its output shaft matches the coupling). In order to improve the adaptability of the test platform, a clamping component is designed to fix the motor 20 under test to the support plate 12.

[0041] The clamping assembly includes two fixing plates 70 (there is a distance between the fixing plates 70 and the support plate 12 so that the fixing plates 70 can be clamped onto the motor housing). The fixing plates 70 are fixedly connected to the front and rear sides of the support plate 12 on the side away from the support base 13. Two adjusting rods 71 ​​are rotatably connected between the two fixing plates 70. The front side of the adjusting rod 71 passes through the front fixing plate 70 and extends to its outer side. A knob 72 is fixedly connected to one end of the adjusting rod 71. Two clamping plates 73 are mounted on the two adjusting rods 71. Slider 74 is fixedly connected to the upper and lower sides of the clamping plate 73 respectively. The slider 74 is fitted onto the adjusting rod 71.

[0042] The adjusting rod 71 is a two-way lead screw (with opposite threads at both ends). The slider 74 has a threaded through hole. The adjusting rod 71 is rotatably connected to the slider 74 through the thread. The clockwise or counterclockwise rotation of the adjusting rod 71 realizes the opposite or reverse movement of the two sliders 74.

[0043] The middle section of the adjusting rod 71 has a 7-9cm smooth section with a diameter slightly larger than that of the threaded section, which can limit the movement of the slider 74.

[0044] Rubber pads are glued to the opposite surfaces of the two clamping plates 73 to reduce wear between the clamping plates 73 and the housing of the motor 20 to be tested.

[0045] In actual operation of this embodiment, the motor 20 to be tested is placed between the two clamping plates 73 of the support plate 12. The knob 72 at the front end of the adjusting rod 71 is rotated to adjust the rod 71, causing the slider 74 mounted on the rod to move in opposite directions, so that the two clamping plates 73 clamp the motor housing. After confirming that the motor is firmly fixed, check whether the coupling between the motor output shaft and the dynamic torque sensor is aligned (ensure coaxiality). The subsequent connection, parameter adjustment and testing steps are the same as in Embodiment 1.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. For those skilled in the art, various modifications and variations are possible with this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A motor module parameter adjustment and performance testing platform, characterized in that: include, The base has three detachable support seats on its top. Support seat one, support seat two, and support seat three are fixedly connected to the top of support seat one. The side of the support plate away from support seat two is used for mounting the motor to be tested. A through hole is opened on the support plate for the output shaft of the motor to be tested to pass through. The dynamic torque sensor is fixedly connected to the support base two. The side of the dynamic torque sensor closest to the support plate is connected to the output shaft of the motor to be tested through a coupling. The dynamic load module is fixedly connected to the support base three, and the other end of the dynamic torque sensor is also connected to the dynamic load module through a coupling. The control box contains a control system, which includes a data acquisition and processing module. The data acquisition and processing module is connected to a battery pack via wires.

2. The motor module parameter adjustment and performance test platform of claim 1, wherein: The control box is equipped with a door on the front side, and a display terminal and multiple digital voltmeters are installed outside the door. The display terminal and digital voltmeters are connected to the data acquisition and processing module through wires. A transformer is also installed between the digital voltmeters and the data acquisition and processing module.

3. The motor module parameter adjustment and performance test platform of claim 1, wherein: The control box has reserved plug-in interfaces and output ports on one side. The number of output ports is the same as that of the digital voltmeters. The output ports are numbered sequentially and each corresponds to a digital voltmeter.

4. The motor module parameter adjustment and performance test platform of claim 3, wherein: The output port is divided into two ports, positive and negative, for connecting the positive and negative terminals of the motor to be tested.

5. The motor module parameter adjustment and performance test platform of claim 1, wherein: The dynamic torque sensor integrates a Hall speed sensor, a torque sensor, and a current sensor into one unit, enabling it to collect motor operating data in real time. The connection cable of the dynamic torque sensor is plugged into the interface on the control box.

6. The motor module parameter adjustment and performance test platform of claim 1, wherein: The dynamic load module uses a magnetic powder brake.

7. The motor module parameter adjustment and performance test platform of claim 1, wherein: The support plate has a clamping assembly on the side where the motor to be tested is installed. The clamping assembly includes two fixed plates, which are fixedly connected to the front and rear sides of the support plate away from the second support base. Two adjusting rods are rotatably connected between the two fixed plates. The front side of the adjusting rod passes through the front fixed plate and extends to its outer side. A knob is fixedly connected to one end of the adjusting rod. Two clamping plates are mounted on the two adjusting rods. Rubber pads are glued to the opposite sides of the two clamping plates. Slider blocks are fixedly connected to the upper and lower sides of the clamping plates, and the sliders are fitted onto the adjusting rods.

8. The motor module parameter adjustment and performance test platform of claim 7, wherein: The adjusting rod is a two-way lead screw, and a threaded through hole is opened on the slider. The adjusting rod is rotatably connected to the slider through the thread.

Images