A motor electromagnetic force measuring device

Abstract

The utility model discloses a motor electromagnetic force measuring device concretely relates to motor electromagnetic force measuring technical field, including work table, the work table top is equipped with the detection piece for measuring motor electromagnetic force, and detection piece shifts up and down through drive piece, the detection piece outside is equipped with the auxiliary part for reinforcing the measurement accuracy, the auxiliary part includes the pure copper bellows of being equipped at the work table top, and the pure copper bellows top end and bottom respectively install the link ring and fixed ring. The utility model discloses through the elasticity of pure copper bellows, so that pure copper bellows can always be fitted in the motor outside, and then it is convenient to by pure copper bellows to the electromagnetic interference of external environment carries out reflection and absorption, so it can ensure that the measurement data is more accurate, and by the guidance of two first telescopic rods of inside and outside setting, can avoid the pure copper bellows to appear skew and distortion situation, thereby guarantee the service performance of pure copper bellows.

Description

Technical Field

[0001] This utility model relates to the field of motor electromagnetic force measurement technology, and more specifically to a motor electromagnetic force measurement device. Background Technology

[0002] As a core component that converts electrical energy into mechanical energy, the performance of a motor directly affects the operating efficiency, stability, and reliability of various electrical and industrial equipment. Electromagnetic force is a key factor in generating torque within a motor, and its magnitude and distribution characteristics directly influence critical indicators such as output performance, vibration noise, and temperature rise. Therefore, accurate measurement of the electromagnetic force in a motor is of great significance for motor design optimization, performance evaluation, and fault diagnosis.

[0003] In existing technologies for measuring the electromagnetic force of motors, the measuring equipment is easily affected by external environmental electromagnetic noise and stray magnetic field coupling, which leads to a significant reduction in the signal-to-noise ratio of the acquired signal, thereby affecting the accuracy of the measurement of the electromagnetic force of the motor. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, this utility model provides a motor electromagnetic force measuring device. By utilizing the extensibility of a pure copper bellows, the pure copper bellows can always be fitted onto the outside of the motor, thereby facilitating the reflection and absorption of electromagnetic interference from the external environment through the pure copper bellows. This ensures more accurate measurement data and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a motor electromagnetic force measuring device, including a worktable, a detection element for measuring the electromagnetic force of a motor is installed on the top of the worktable, and the detection element is moved up and down by a drive element, and an auxiliary element for enhancing the measurement accuracy is provided on the outside of the detection element;

[0006] The auxiliary component includes a pure copper corrugated tube installed on the top of the workbench. The top and bottom ends of the pure copper corrugated tube are respectively equipped with connecting rings and fixing rings, and the outside of the pure copper corrugated tube is provided with multiple sets of positioning components to enhance the stability of displacement.

[0007] In a preferred embodiment, each set of positioning components includes two first telescopic rods, which are respectively located inside and outside the pure copper corrugated pipe, and the top and bottom ends of the first telescopic rods are respectively fixed to the side of the connecting ring and the fixing ring that are close to each other.

[0008] In a preferred embodiment, the detection component includes a three-jaw chuck mounted on the top of the workbench, and the three-jaw chuck is disposed inside a pure copper bellows. A movable plate is provided on the top of the three-jaw chuck, a load sensor is mounted on the top of the movable plate, and a coupling connected to the load sensor is mounted on the bottom of the movable plate.

[0009] In a preferred embodiment, the drive component includes two support frames mounted on the top of the workbench. The two support frames are respectively located on both sides of the pure copper corrugated pipe, and a threaded rod connected to the side of the two support frames that are close to each other is installed inside the support frame via a bearing. A slide is threadedly connected to the outside of the threaded rod, and the end of the slide away from the threaded rod is fixed to the moving plate.

[0010] In a preferred embodiment, a servo motor is mounted on the top of the support frame, and the output shaft of the servo motor passes through the support frame and is fixed to the top of the threaded rod.

[0011] In a preferred embodiment, vertical plates are installed at the bottom of both ends of the movable plate, and a second telescopic rod is installed on the side of the two vertical plates that are close to each other. A positioning rod with a T-shaped cross section is installed at the end of the second telescopic rod away from the vertical plate. A spring is sleeved on the outside of the end of the second telescopic rod that is close to the positioning rod. Positioning grooves are opened on the side of the connecting ring corresponding to the positioning rod at both ends.

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

[0013] The elasticity of the pure copper bellows allows it to always be fitted around the motor, facilitating the reflection and absorption of electromagnetic interference from the external environment. This ensures more accurate measurement data. Furthermore, the two internal and external telescopic rods prevent the pure copper bellows from becoming skewed or twisted, thus guaranteeing its performance.

[0014] The spring's rebound force pushes the positioning rod inward into the positioning groove on the connecting ring, and the engagement between the positioning rod and the positioning groove fixes the connecting ring, thereby ensuring the connection stability between the connecting ring and the moving plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front view of the three-jaw chuck of this utility model;

[0017] Figure 3 This is a front view of the pure copper corrugated pipe of this utility model;

[0018] Figure 4 This is a bottom view of the movable plate of this utility model;

[0019] Figure 5 For the present utility model Figure 4 Enlarged view of section A in the middle.

[0020] The attached diagram is labeled as follows: 1. Workbench; 2. Pure copper bellows; 3. Connecting ring; 4. Fixing ring; 5. First telescopic rod; 6. Three-jaw chuck; 7. Moving plate; 8. Load sensor; 9. Coupling; 10. Support frame; 11. Threaded rod; 12. Slide; 13. Servo motor; 14. Vertical plate; 15. Second telescopic rod; 16. Positioning rod; 17. Spring; 18. Positioning groove. Detailed Implementation

[0021] 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.

[0022] Refer to the instruction manual appendix Figure 1-5 This utility model provides a motor electromagnetic force measuring device, including a workbench 1. A detection element for measuring the electromagnetic force of a motor is installed on the top of the workbench 1, and the detection element is moved up and down by a drive element.

[0023] The operator uses a testing device to measure the electromagnetic force of the motor. The testing device includes a three-jaw chuck 6 installed on the top of the workbench 1, and the three-jaw chuck 6 is located inside the pure copper bellows 2. The top of the three-jaw chuck 6 is equipped with a movable plate 7, the top of the movable plate 7 is equipped with a load sensor 8, and the bottom of the movable plate 7 is equipped with a coupling 9 connected to the load sensor 8. This allows the operator to fix the motor stator using the three-jaw chuck 6, and then connect it to the motor rotor using the coupling 9.

[0024] like Figure 1 and 2 As shown, after the motor stator and rotor are fixed, the motor rotor needs to be moved by a drive component. The drive component includes two support frames 10 mounted on the top of the workbench 1. The two support frames 10 are respectively located on both sides of the pure copper bellows 2. The inner side of the two support frames 10 that is close to each other is equipped with a threaded rod 11 that is movably connected by a bearing. The threaded rod 11 is externally threaded with a slide block 12. The end of the slide block 12 away from the threaded rod 11 is fixed to the moving plate 7. A servo motor 13 is mounted on the top of the support frame 10. The output shaft of the servo motor 13 passes through the support frame 10 and is fixed to the top of the threaded rod 11.

[0025] Before adjusting the height of the moving plate 7, the motor is powered on, so that the stator magnetic field and the rotor current interact to generate axial electromagnetic force. Then, the operator drives the servo motor 13 to rotate the threaded rod 11. The threaded rod 11 then drives the slide 12 to move the coupling 9 on the moving plate 7 that is connected to the motor rotor. Since the coupling 9 is connected to the load sensor 8, the linkage shaft can measure the force applied by the electric drive component in real time, that is, the reaction of the electromagnetic force, and indirectly reflect the magnitude of the electromagnetic force.

[0026] like Figure 1 and 3 As shown, in order to ensure the accuracy of the measurement of the electromagnetic force of the motor, it is necessary to avoid external electromagnetic interference. The external part of the detection device is provided with auxiliary components to enhance the measurement accuracy. The auxiliary components include a pure copper corrugated tube 2 located on the top of the workbench 1. The top and bottom ends of the pure copper corrugated tube 2 are respectively equipped with a connecting ring 3 and a fixing ring 4. The external part of the pure copper corrugated tube 2 is provided with multiple sets of positioning components to enhance the displacement stability.

[0027] When the drive unit moves the coupling 9 to connect with the motor rotor, the operator needs to install the connecting ring 3 on the pure copper bellows 2 to the bottom of the moving plate 7, so that the pure copper bellows 2 can move up and down with the moving plate 7. Thus, vertical plates 14 are installed at the bottom of both ends of the moving plate 7. A second telescopic rod 15 is installed on the side of the two vertical plates 14 that are close to each other. A positioning rod 16 with a T-shaped cross section is installed at the end of the second telescopic rod 15 away from the vertical plate 14. A spring 17 is sleeved on the outside of the end of the second telescopic rod 15 that is close to the positioning rod 16. A positioning groove 18 is opened on the side of both ends of the connecting ring 3 corresponding to the positioning rod 16, so that the operator can pull the positioning rod 16 outward to fit the connecting ring 3 to the bottom of the moving plate 7. Then, the spring 17 pushes the positioning rod 16 into the positioning groove 18 by the rebound force. The engagement of the positioning rod 16 and the positioning groove 18 fixes the connecting ring 3, thereby ensuring the connection stability between the connecting ring 3 and the moving plate 7.

[0028] Because of the connection between the connecting ring 3 and the moving plate 7, when the moving plate 7 drives the coupling 9 and the motor rotor, it can also move the pure copper bellows 2 together. The pure copper bellows 2 reflects and absorbs electromagnetic interference from the external environment, thereby ensuring more accurate measurement data.

[0029] Meanwhile, to ensure the stability of the pure copper bellows 2 during expansion and contraction, it is necessary to limit the movement of the pure copper bellows 2, such as... Figure 3As shown, each positioning component includes two first telescopic rods 5, which are respectively located inside and outside the pure copper corrugated pipe 2. The top and bottom ends of the first telescopic rods 5 are fixed together with the connecting ring 3 and the fixing ring 4 on the side that are close to them, respectively. By setting the first telescopic rods 5 on both the inner and outer sides of the pure copper corrugated pipe 2, the pure copper corrugated pipe 2 can be stably moved by the guidance of the first telescopic rods 5, so as to avoid the pure copper corrugated pipe 2 from being skewed or twisted, thereby ensuring the performance of the pure copper corrugated pipe 2.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A motor electromagnetic force measuring device, comprising a worktable (1), characterized in that: The top of the workbench (1) is equipped with a detection component for measuring the electromagnetic force of the motor, and the detection component is moved up and down by a drive component. The detection component is provided with auxiliary components to enhance the accuracy of the measurement. The auxiliary component includes a pure copper corrugated pipe (2) located on the top of the workbench (1). The top and bottom ends of the pure copper corrugated pipe (2) are respectively equipped with a connecting ring (3) and a fixing ring (4), and the outside of the pure copper corrugated pipe (2) is provided with multiple sets of positioning components to enhance the stability of displacement.

2. The motor electromagnetic force measuring device according to claim 1, characterized in that: Each positioning component includes two first telescopic rods (5), which are respectively located inside and outside the pure copper corrugated pipe (2), and the top and bottom ends of the first telescopic rods (5) are respectively fixed together with the side of the connecting ring (3) and the fixing ring (4) that are close to each other.

3. The electromagnetic force measuring device for a motor according to claim 1, characterized in that: The detection component includes a three-jaw chuck (6) installed on the top of the workbench (1), and the three-jaw chuck (6) is located inside the pure copper bellows (2). The top of the three-jaw chuck (6) is provided with a moving plate (7), the top of the moving plate (7) is equipped with a load sensor (8), and the bottom of the moving plate (7) is equipped with a coupling (9) connected to the load sensor (8).

4. The electromagnetic force measuring device for a motor according to claim 3, characterized in that: The drive unit includes two support frames (10) mounted on the top of the workbench (1). The two support frames (10) are respectively located on both sides of the pure copper corrugated pipe (2). The two support frames (10) are respectively installed on the side that is close to each other. The threaded rod (11) is movably connected by a bearing. The threaded rod (11) is externally threaded with a slide (12). The end of the slide (12) away from the threaded rod (11) is fixed together with the moving plate (7).

5. The electromagnetic force measuring device for a motor according to claim 4, characterized in that: A servo motor (13) is installed on the top of the support frame (10). The output shaft of the servo motor (13) passes through the support frame (10) and is fixed together with the top of the threaded rod (11).

6. The electromagnetic force measuring device for a motor according to claim 3, characterized in that: The bottom of both ends of the movable plate (7) is equipped with vertical plates (14), and a second telescopic rod (15) is installed on the side of the two vertical plates (14) that are close to each other. A positioning rod (16) with a T-shaped cross section is installed on the end of the second telescopic rod (15) that is away from the vertical plate (14). A spring (17) is sleeved on the outside of the end of the second telescopic rod (15) that is close to the positioning rod (16). A positioning groove (18) is opened on the side of both ends of the connecting ring (3) corresponding to the positioning rod (16).

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