Brushless motor load detection device

Abstract

The utility model discloses a brushless motor load detection device, and specifically relates to the motor load detection device technology field, the brushless motor load detection device comprises a control panel, a load assembly, a torque sensor and a limiting mechanism, the side surface of the control panel is provided with the load assembly, and one side of the load assembly far away from the control panel is provided with the torque sensor; a torque sensor is arranged on the load assembly, a limiting mechanism is placed on the side, away from the load assembly, of the torque sensor and comprises a clamping assembly, a moving assembly and a sliding assembly, the moving assembly is installed above the sliding assembly, the clamping assembly is installed above the moving assembly, and all the assemblies can be controlled and monitored in a centralized mode through a control panel; the automatic detection process and data recording are realized, and the working efficiency and the accuracy of measured data are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of motor load detection devices, and more specifically, to a brushless motor load detection device. Background Technology

[0002] A motor load detection device is a device used to monitor and measure the load conditions of a motor in real time during operation. It can accurately acquire various parameter information related to the motor load, such as the motor's output torque, current, voltage, speed, and temperature. By monitoring and analyzing these parameters, it can accurately determine the current load size, trend of change, and whether the motor is in an abnormal state such as overload or underload. It also provides an important basis for motor operation control, protection, and optimized operation of equipment.

[0003] A search revealed that publication number CN222105605U discloses a rear axle motor load detection device, comprising a base plate, a torque detector, a first positioning plate and a second positioning plate located on the base plate, a first transmission gear fixed to a main shaft, a transmission shaft between the first and second positioning plates, and a second transmission gear fixed on the transmission shaft to mesh with the first transmission gear. The first positioning plate and the base plate are slidably fitted together to allow the distance between the first and second positioning plates to be adjustable. The transmission shaft includes two shafts, with a first bushing fitted on the outer side of each shaft. The shafts are slidably fitted with the first bushing and have a limiting structure to restrict their relative circumferential rotation. The first and second positioning plates are provided with limiting components to prevent the first transmission shaft from rotating. This device has the advantage of being applicable to the load detection of rear axle motors in different models of mobility scooters. The inventors discovered the following problems with the existing technology during the development of this utility model:

[0004] Traditional motor load testing devices generally lack integrated limit mechanisms and other components for fixing positions. They cannot accurately fix the motor's position based on its model and size, nor can they establish a stable connection between the motor and the load device. Furthermore, during testing, the lack of precise motor positioning causes relative movement between the motor and the load motor, leading to data deviations. Moreover, existing motor load testing devices typically operate independently, requiring manual operation and data reading during motor load testing, resulting in low automation.

[0005] Therefore, a brushless motor load detection device is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a brushless motor load detection device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a brushless motor load detection device, comprising a control panel, a load component, a torque sensor, and a limiting mechanism. The load component is placed on the side of the control panel, and a torque sensor is installed on the side of the load component away from the control panel. A limiting mechanism is placed on the side of the torque sensor away from the load component. The limiting mechanism includes a clamping component, a moving component, and a sliding component. The moving component is installed above the sliding component, and the clamping component is installed above the moving component.

[0008] Preferably, the load assembly includes a coupling, a load shaft, and a load motor, with the load shaft mounted on the side of the coupling and the load motor mounted on the side of the load shaft away from the coupling.

[0009] Preferably, the clamping assembly includes a cylinder, a push rod, a push plate, and an anti-slip rubber pad, wherein the push rod is installed on one side of the cylinder, the push plate is installed on the side of the push rod away from the cylinder, and the anti-slip rubber pad is installed on the side of the push plate away from the push rod.

[0010] Preferably, the movable component includes an electric lifting rod, a support plate, and a limiting block, and the support plate is installed above the electric lifting rod, and the limiting block is installed above the support plate.

[0011] Preferably, the sliding assembly includes a sliding block, a threaded rod, a motor, and a groove, wherein the threaded rod is mounted on the side of the motor, the sliding block is placed on the outer diameter surface of the threaded rod, and the groove is placed on the side of the sliding block.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] Compared with existing technologies, this brushless motor load detection device uses a limiting mechanism to precisely limit and adjust the position of relevant motor components, avoiding problems such as overtravel and improving the safety and stability of the system. Furthermore, the clamping components of the limiting mechanism can be flexibly adjusted according to different motor shapes and installation requirements, while the moving and sliding components can adjust the distance between the motor and the load motor. This ensures that the motor can stably and precisely connect with the shaft of the load motor during testing, and guarantees that there will be no relative displacement between the motor and the load motor during testing, making the detection data more accurate.

[0014] Compared with existing technologies, this brushless motor load detection device allows for centralized control and monitoring of various components via a control panel, enabling automated detection processes and data recording. This improves work efficiency and the accuracy of measurement data. When workers are testing the motor, they do not need to read data individually; instead, they can process and analyze multiple sets of test data in a unified manner through the data recording on the control panel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a brushless motor load detection device according to the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the sliding component of a brushless motor load detection device according to the present invention.

[0017] Figure 3 This is a three-dimensional structural diagram of the load component of a brushless motor load detection device according to the present invention.

[0018] Figure 4 This is a three-dimensional structural diagram of the clamping component of a brushless motor load detection device according to the present invention.

[0019] The attached diagram is labeled as follows: 1. Control panel; 2. Load assembly; 3. Torque sensor; 4. Limiting mechanism; 5. Clamping assembly; 6. Moving assembly; 7. Sliding assembly; 8. Coupling; 9. Load shaft; 10. Load motor; 11. Cylinder; 12. Push rod; 13. Push plate; 14. Anti-slip rubber pad; 15. Electric lifting rod; 16. Support plate; 17. Limiting block; 18. Sliding block; 19. Threaded rod; 20. Motor; 21. Slide groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0021] As attached Figures 1 to 4The brushless motor load detection device shown includes a control panel 1, a load component 2, a torque sensor 3, and a limiting mechanism 4. The load component 2 is placed on the side of the control panel 1. The torque sensor 3 is installed on the side of the load component 2 away from the control panel 1. The limiting mechanism 4 is placed on the side of the torque sensor 3 away from the load component 2. The limiting mechanism 4 includes a clamping component 5, a moving component 6, and a sliding component 7. The moving component 6 is installed above the sliding component 7, and the clamping component 5 is installed above the moving component 6.

[0022] Before detecting the load status of the brushless motor, the worker first needs to adjust the clamping component 5 of the limit mechanism 4 according to the model and size of the brushless motor to firmly fix the brushless motor in the clamping component 5. Then, the displacement component and sliding component 7 are adjusted respectively to ensure that the shaft installed on the brushless motor can be precisely connected to the load component 2. After the brushless motor is fixed, the worker needs to fix the torque sensor 3 at the connection between the load component 2 and the brushless motor shaft, and turn on the data transmission system inside the torque sensor 3. Then, it is connected to the control panel 1 for data transmission. The torque sensor 3 adopts a non-contact measurement principle and has high resolution and fast response capability, which can be used in high-speed applications. Maintaining high-precision measurement under high-speed rotation or complex working conditions, with strong environmental adaptability, compact structure, and convenient installation, the torque sensor 3 is model T22 / 50NM. After the torque sensor 3 is installed, the worker needs to start the load component 2 to detect the load status of the brushless motor, and then view, record, and analyze the data of the torque sensor 3 on the control panel 1. When it is also necessary to measure the input current and its own speed of the brushless motor, the worker needs to install the current sensor on the power supply line of the brushless motor and the speed sensor on the shaft of the brushless motor, and turn on the data transmission system of both so that the control panel 1 can receive the data detected by both. Example 2

[0023] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0024] In a preferred embodiment, the load assembly 2 includes a coupling 8, a load shaft 9, and a load motor 10. The coupling 8 consists of two housings with internal teeth and two half-couplings 8 with external teeth. Torque is transmitted through the meshing of the internal and external teeth, and it has a large load-bearing capacity and the ability to compensate for the relative displacement of the two shafts. The coupling 8 is a CLZ2 model. The load shaft 9 is mounted on the side of the coupling 8. The coupling 8 and the load shaft 9 are connected by a shrink sleeve. The load motor 10 is welded to the side of the load shaft 9 away from the coupling 8. When the worker starts the load assembly 2 to perform load testing on the brushless motor, the load motor 10 drives the coupling 8 to rotate through the load shaft 9.

[0025] In a preferred embodiment, the clamping assembly 5 includes a cylinder 11, a push rod 12, a push plate 13, and an anti-slip rubber pad 14. The push rod 12 is bolted to one side of the cylinder 11, and the push plate 13 is bolted to the side of the push rod 12 away from the cylinder 11. The anti-slip rubber pad 14 is bonded to the side of the push plate 13 away from the push rod 12. When the worker needs to activate the clamping assembly 5 to fix the brushless motor, the cylinder 11 will push the push plate 13 to move horizontally through the push rod 12. The anti-slip rubber pad 14 is bonded to the surface of the push plate 13, so when the push plate 13 moves horizontally, the anti-slip rubber pad 14 will also move horizontally and limit the movement of both sides of the brushless motor.

[0026] In a preferred embodiment, the moving assembly 6 includes an electric lifting rod 15, a support plate 16, and a limiting block 17. The support plate 16 is bolted to the top of the electric lifting rod 15, and the limiting block 17 is bolted to the top of the support plate 16. When the worker needs to adjust the vertical height of the brushless motor, the electric lifting rod 15 will push the support plate 16 to move vertically, and the limiting block 17 will also move vertically with the support plate 16, thus limiting the brushless motor.

[0027] In a preferred embodiment, the sliding assembly 7 includes a sliding block 18, a threaded rod 19, a motor 20, and a slide groove 21. The threaded rod 19 is welded to the side of the motor 20, and the sliding block 18 is placed on the outer diameter surface of the threaded rod 19. The sliding block 18 and the threaded rod 19 are connected by threads. The slide groove 21 is placed on the side of the sliding block 18, and the sliding block 18 and the slide groove 21 are slidably connected. When the worker adjusts the horizontal distance of the brushless motor, the motor 20 will drive the threaded rod 19 to rotate, and the position of the motor 20 is fixed on the worktable. The two sides of the sliding block 18 are limited by the slide groove 21, so when the threaded rod 19 rotates, the slider can only slide back and forth on the slide groove 21.

[0028] The working process of this utility model is as follows: First, before testing the load state of the brushless motor, the worker needs to adjust the clamping component 5 of the limiting mechanism 4 according to the model and size of the brushless motor. When adjusting the clamping component 5, the cylinder 11 will push the push plate 13 to move horizontally through the push rod 12. The anti-slip rubber pad 14 is bonded to the surface of the push plate 13, so when the push plate 13 moves horizontally, the anti-slip rubber pad 14 will also move horizontally, limiting both sides of the brushless motor to firmly fix the brushless motor in the clamping component 5. After the brushless motor is fixed, the worker needs to adjust the displacement component and the sliding component respectively. 7. This allows the rotating shaft mounted on the brushless motor to be precisely connected to the load assembly 2. When the worker needs to adjust the vertical height of the brushless motor, the electric lifting rod 15 will push the support plate 16 to move vertically, and the limit block 17 will also move vertically with the support plate 16, thus limiting the brushless motor. When the worker adjusts the horizontal distance of the brushless motor, the motor 20 will drive the threaded rod 19 to rotate, and the position of the motor 20 is fixed on the worktable. The two sides of the sliding block 18 are limited by the slide groove 21, so when the threaded rod 19 rotates, the slider can only slide back and forth on the slide groove 21.

[0029] After the brushless motor is fixed, the worker needs to fix the torque sensor 3 at the connection between the load assembly 2 and the brushless motor shaft, and turn on the data transmission system inside the torque sensor 3. Then, connect it to the control panel 1. After the torque sensor 3 is installed, the worker needs to start the load assembly 2 to detect the load status of the brushless motor. When the load motor 10 starts, the load motor 10 will drive the coupling 8 to rotate through the load shaft 9. The other side of the coupling 8 is fixed to the shaft of the brushless motor under test. Therefore, when the load motor 10 rotates, the shaft of the brushless motor under test will also rotate. At this time, the torque data of the brushless motor under test is displayed on the control panel 1. The worker needs to view, record and analyze this data. When it is also necessary to measure the input current and speed of the brushless motor, the worker needs to install the current sensor on the power supply line of the brushless motor and the speed sensor on the shaft of the brushless motor, and turn on the data transmission system of both so that the control panel 1 can receive the data detected by both. The above is the working principle of this brushless motor load detection device.

Claims

1. A brushless motor load detection device, comprising a control panel (1), a load assembly (2), a torque sensor (3) and a limiting mechanism (4), characterized in that: The side of the control panel (1) is provided with a load assembly (2), and the torque sensor (3) is installed on the side of the load assembly (2) away from the control panel (1), and the limiting mechanism (4) is placed on the side of the torque sensor (3) away from the load assembly (2), and the limiting mechanism (4) comprises a clamping assembly (5), a moving assembly (6) and a sliding assembly (7), and the moving assembly (6) is installed above the sliding assembly (7), and the clamping assembly (5) is installed above the moving assembly (6).

2. A brushless motor load detection device according to claim 1, characterized in that: The load assembly (2) comprises a shaft coupling (8), a load shaft (9) and a load motor (10), and the load shaft (9) is installed on the side of the shaft coupling (8), and the load motor (10) is installed on the side of the load shaft (9) away from the shaft coupling (8).

3. A brushless motor load detection device according to claim 1, wherein: The clamping assembly (5) comprises a cylinder (11), a push rod (12), a push plate (13) and a non-slip rubber pad (14), and the push rod (12) is installed on the side of the cylinder (11), and the push plate (13) is installed on the side of the push rod (12) away from the cylinder (11), and the non-slip rubber pad (14) is installed on the side of the push plate (13) away from the push rod (12).

4. A brushless motor load detection device according to claim 1, characterized in that: The moving assembly (6) comprises an electric lifting rod (15), a support plate (16) and a limiting block (17), and the support plate (16) is installed above the electric lifting rod (15), and the limiting block (17) is installed above the support plate (16).

5. A brushless motor load detection device according to claim 1, wherein: The sliding assembly (7) comprises a sliding block (18), a threaded rod (19), a motor (20) and a sliding groove (21), and the threaded rod (19) is installed on the side of the motor (20), and the sliding block (18) is placed on the outer diameter surface of the threaded rod (19), and the sliding groove (21) is placed on the side of the sliding block (18).

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